Progressive distributor MX-F

Transcription

1 The progressive piston distributors are distributor devices with a hydraulic sequence control, the pistons of which are regulated by the supplied lubricant in a way that the lubricant inevitably and successively escapes at the individual outlets. In the case of malfunction during the flow of lubricant, e. g. clogging of lubricating line or lubricating points, the distributor will block up. This blockage is used for the monitoring of the distributors. In the case of manually operated pumps a virtually insurmountable counter pressure occurs during the blockage. In the case of automatic pumps such as e. g. the electropump EP- the lubricant escapes at the excess pressure valve. The progressive distributors are manufactured in a variable disk construction, which offers the advantage that the distributor can be extended or shortened at random according to the amount of lubrication points. Due to this disk construction there is also the possibility of constructing an overall progressive distributor from individual distributor disks with different outputs per piston stroke. The difference in output per piston stroke is achieved by different piston diameters. To ensure the proper functioning of a progressive distributor a minimum of three pistons, i. e. a minimum of three output elements is required. Progressive distributor MX-F with four output elements and eight outlets: 7 Dimension drawing: A PU000EN Technical data: Operating pressure - Inlet: max. 00 bar Temperature range: - C to +80 C Carrier vehicle: Oil - viscous oil - grease Number of elements: Min. MX-F / ( piston elements) Max.: MX-F / ( piston elements) Element designation MX-F MX-F MX-F 7 MX-F 0 Outlets Dimension A Dimension B Delivery quantity per outlet per element mm³ mm³ 7 mm³ 0 mm³ mm³ 90 mm³ 0 mm³ 0 mm³ Piston dia. mm mm mm mm Ø B M0x Inlet for dia. mm X Outlet for dia. mm

2 Functional description of standard distributor The progressive distributor individually consist of an initial element (without piston), min. middle elements and a possible element 00 and one end element that are connected by connecting rods (hexagon screws) and toothed lock washers until you receive distributor blocks. The progressive distributors consist of the individual components inlet element IE (without piston), middle element ME and end element EE, all of which are assembled in distributor blocks using tension rods (hexagon socket screws) with lock washers. The individual elements are sealed with O-rings. The lubricant flows via the inlet of the distributor through all distributor disks to the piston (I) (illustration A). The piston (I) is shifted to the left and the lubricant is pressed from the left pressure range of the delivery piston to the outlet (illustration B). After that, the proportioning pistons (II) and (III) are progressively shifted and the lubricant is primed to the outlets and. After the piston (III) has been shifted, the lubricant is directed to the left side of the delivery piston (I) (illustration C) and primed from the right pressure range of the delivery piston to the outlet. Subsequently, the delivery pistons (II) and (III) are shifted and lubricant is pressed to the outlets and. Illustration A III II I Pressure range Illustration B: III II I After the delivery piston (III) has been shifted, the lubricant is once more directed to the right side of the delivery piston (illustration A) and a new cycle of the progressive piston distributor is initiated. The described function is repeated as long as lubricant is fed to the progressive distributor. Illustration C: III II I

3 Functional description of distributor with element 00 When using a element 00 the distributor mainly operates like a standard distributor. Figure D: III Lubricant flows via the distributor inlet through all distributor discs to the piston (I). During this process the non-return valve RV in the dummy element opens (fig. D, red marking). The piston (I) is moved to the left and lubricant is pressed out of the left chamber to outlet (fig. D, blue marking). RV 00 RV II I Druckraum Afterwards the piston (II) is moved and lubricant is delivered to outlet (fig. E, blue marking). Figure E: III RV 00 II I Druckraum RV

4 Functional description of distributor with element 00 Now lubricant flows to piston (III). This is moved to the left (fig. F, red marking). Lubricant is pressed out of the left chamber, moves the piston (00) of the dummy element (fig. F, blue marking) and initiates a signal at the proximity switch when this is installed on the left side of the distributor. The non-return valve RV of the dummy element opens and lubricant is supplied to outlet (fig. F, green marking). Figure F: III RV 00 RV II I Right after the piston (III) has been moved, lubricant is supplied to the left side of the piston (I) and moves it to the right (fig. G, red marking). Lubricant from the right pressure chamber of the piston (I) is supplied to outlet (fig. G, blue marking). Pressure chamber Figure G: III RV 00 II I RV Druckraum

5 Functional description of distributor with element 00 Now the piston (II) is moved to the right (fig. H, red marking) and lubricant is supplied to outlet (fig. H, blue marking). Figure H: III RV 00 RV II I Before piston (III) is moved to the right, the piston (00) of the element 00 is also moved to the right (fig. I, red marking) so that the proximity switch can initiate a new signal. Figure I: III Pressure chamber RV 00 II I RV Pressure chamber

6 Functional description of distributor with element 00 When piston (III) has been moved the non-return valve RV opens and lubricant flows towards piston (III) and moves it to the right (fig. J, red marking). The metering quantity from the right pressure chamber of the piston (III) is then supplied to outlet (fig. J, blue marking). As soon as piston (III) is moved, lubricant is lead to the left side of the piston (I) and the distributor cycle starts anew (see fig. D). Figure J: III RV 00 RV II I Pressure chamber

7 Assembling outlets: For larger lubrication points the assembly of two or more outlets at the progressive distributor may be required. The individual disks of the progressive distributor have two outlets. outlets per distributor element (standard type) -fold Sealing screw SW When assembling two outlets at the progressive distributor the two outlets of one disk are connected. To achieve this, the sealing screw separating the two sides is removed and a lock screw screwed in to the side, which is to be closed. The output of the closed side is now escaping on the other side, i. e. the output of the open side is doubled. outlet per distributor element -fold Lock screw SW Lock screws are generally required for the assembly of outlets: Lock screw for progressive distributor MX-F: Order-no: To separate assembled outlets on progressive distributors the sealing screw must ne screwed back in: Sealing screw for separation of outlets on progressive distributors MX-F: Order-no:

8 Assembling several outlets Assembling outlets with a pipe or distributor bridge without outlet: If the total output of the outlets assembled in one disk of the progressive distributor is not sufficient, e. g. in the case of large bearing points or main distributors, there is the possibility of assembling the outlets of several distributor disks. To achieve this, tow distributor disks are connected with a pipe or distributor bridge as described here. Depending on which element the sealing screw separating the two sides of a distributor disk is removed from, in this way three outlets are connected. Subsequently, the output of the closed outlets escaped at one outlet. The dosage is calculated on the basis of the output value of all assembled piston sides. A pipe bridge or a distributor bridge can also be used for the assembly of four outlets. To achieve this, the sealing screw must be removed from both distributor disks and one of the two outlets must be closed off opposite the pipe bridge or distributor bridge with a lock screw. assembled outlets -fold -fold assembled outlets -fold Pipe bridge: Cap screw ÜS M0x Order-no: and Double cone olive DKR Order-no: and Reducer ring dia. to dia. Order-no: Order-no collective: Pipe bridge Order-no: F009/

9 Assembling several outlets Distributor bridge without outlet: a) Distributor bridge without non-teturn valve:,9 Comprising: 9,7 Order-no: piece link unit Order-no: F009/-00 piece hollow bolt without outlet Order-no: piece sealing ring A0x,x, () Order-no: piece sealing ring A0xx () Order-no: b) Distributor bridge with integrated non-return valve: Example: To ensure the proper working order of a progressive distributor with three delivery elements but only two outlets with integrated check valve must be used (see example on the right). 0* 0 0* 0,9 Comprising: 9,7 Order-no: ,9 0 piece link unit Order-no: F009/-00 piece hollow bolt without outlet () Order-no: F009/-00 piece hollow bolt with non-return valve () Order-no: piece sealing ring A0x,x, () Order-no: piece sealing ring A0xx () Order-no:

10 Assembling of and more outlets Assembling outlets with distributor bridges with outlet: For the connection of two outlets (on different adjacent distributor disks) the sealing screw may not be removed from either of the two concerned distributor disks. As a result, the output of both the outlets escapes at the outlet of the distributor bridge. outlets per distributor element -fold -fold -fold For the connection of three outlets the sealing screw must be removed from one of the two concerned distributor disks. A lock screw must be fastened in the free outlet of this distributor disk. As a result, the output of all three outlets escapes at the outlet of the distributor bridge. outlets per distributor element -fold -fold For the connection of four outlets the sealing screw must be removed from both distributor disks and a lock screw must be screwed into the outlets situated opposite the distributor bridge. As a result, the output of all four outlets escapes at the outlet of the distributor bridge. outlets per distributor element -fold Distributor bridge with outlet: Comprising: 9.7 Order-no: SW Piece link unit Order-no: F009/-00 Piece hollow bolt with outlet Order-no: F009/-00 Piece hollow bolt without outlet Order-no: Piece sealing ring A 0 x. x. () Order-no: Piece sealing ring A 0 x x () Order-no:

11 Input screw connections The MX-F progressive distributor can be used both as a main distributor and secondary distributor. When used as a main distributor, the pump is connected by means of a high-pressure hose. Also when used as a secondary distributor, the connection from the main distributor generally requires a high-pressure hose. This hose must be connected by means of a insert and a treaded ferrule. The connection diameter of the insert can be dia. or dia. 8. All screw connections with M0xk threads or M0x threads and a sealing edge can be used for the input connection of the MX-F progressive distributor. Angular coupling: Dimension diagram: S S Three different couplings are available with the above pipe diameters. A) Angular coupling: L Pipe-dia. D Order-no: WELL M0xk WE8LL M0xk 0000 G L L Pipe-dia. D 8 M M0xk M0xk L 8 8 L.. approx. L 8 S S B) Straight coupling: Straight coupling: Order-no: GELL M0xk GE8LL M0xk Pipe-dia. D 8 M M0xk M0xk L L approx. L 8 S S Dimension diagram: G L L S L S Pipe-dia. D

12 Input screw connections C) Swivel angular coupling: Swivel angular coupling: Order-no: WSLL M0x WS8LL M0x 00000LL 0000LL Pipe-dia. D 8 M M0x M0x L 0. L 9. 0 appox. L L 0 i S S S D Dimension diagram: S S S i L L Pipe-dia. D M D L L

13 Screw fittings for outlet Screw connections: Polyamide pipe with a diameter x. or steel pipe with a diameter x is generally screwed to the distributor with a cap screw US M0x and a double cone olive DKR. The connecting sleeve used for connecting to the highpressure hose can also be fastened directly to the distributor with the cap screw US M0x and the corresponding double cone olive. The polyamide pipe dia. x0.8 hard or the steel pipe dia. x0.7 is connected to the distributor with a reducer from dia. to dia., a double cone olive DKR and a cap screw US M0x. Cap screw US M0x Order-no: Double cone olive DKR Cap screw US M0x Order-no: Double cone olive DKR Order-no: Order-no: Reducer ring at dia. to dia. Order-no: Polyamide pipe screwed onto a distributor disk MX-F: Polyamide pipe dia. x. Reducer ring at dia. to dia. Polyamide pipe dia. x0.8 hard Plug connections: Cap screw Cap screw US M0x Double cone olive US M0x DKR Double cone olive DKR Straight pin-and-socket connector for MX-F distributor: The polyamide pipe dia. and polyamide pipe dia. hard can also be connected to the distributor by means of a plug connection. For this purpose, straight pin-and-socket connectors for the MX-F distributor are screwed into the distributors outlets. These straight pin-and-socket connectors are available for pipe dia. and for pipe dia.. The turned conical form on the front eliminates the need for an additional double conical ring. To connect a high-pressure hose to a plug-and-socket connector, use a pipe socket for plug-and-socket connections (ref. no: 00 9) with groove. In this case, the pipe connection dia. is dia.. Pipe dia. D mm mm Order-No FAZ00-0 FAZ00-00 M0x SW. 7. Pipe dia. D

14 Screw fittings for outlets Non-return valve for progressive distributors MX-F The non-return valves are generally used in connection with the high-pressure hose, e. g. for lubrication points with increased back pressure or in main distributors. Non-return valve for progressive distributors MX-F for main distributors: Cap screw 7. SW Two types of non-return valves are available at which the pipe socket is screwed up and furthermore two types with plug connectors. M0x M0x The polyamide tube and high-pressure hose are screwed onto the non-return valve of the progressive distributor MX- F with a cap screw and a double cone olive. Non-return valves with cap nut and cutting olive require no additional union piece. Order-no: Double cone olive Non-return valve with cap nut and cutting olive for auxiliary distributors: SW approx.. M0x Pipe dia.. Order-no: Cap nut and cutting olive The high-pressure hose can be plugged in at the non-return valve with BEKAconnector. Pipe dia. D SW A Order-no. Non-return valve with BEKA-plug-in connector Dia. d M0x The plug connection at the non-return valve with connector model HP is a detachable one. SW A SW Non-return valve with plug-in connector model HP: SW Dia., Dia.. M0x Order-no..:

15 Elements Progressive distributors MX-F consist of one initial element (without delivery piston), two to eleven middle elements and one end element each. Inital elements Initial elements are available with or without inlet union piece. All union pieces with a threaded connection of M0x can be screwed into an initial element without inlet union piece. Initial element without inlet union piece: Order-no: Initial element with angular coupling WE M0xk: Order-no: Middle elements are available with four different outputs. Middle element for progressive distributor MX-F: MX-F = mm³/stroke MX-F = mm³/stroke MX-F 7 = 7 mm³/stroke MX-F 0 = 0 mm³/stroke Elements 00 Additionally to the middle elements, a element 00 can be installed in the progressive distributor MX-F. The proximity switch is installed at this element. Elements 00 contain a signal piston. The metering of the lubricant is not possible with a element 00. Proximity switches that are installed at the distributors monitor the system or in regards to the stroke control, count the piston strokes of the distributor. Element 00 for progressive distributor MX-F with proximity switch Mx: The proximity switch can be installed right or left. Please indicate this when ordering (see table on right side). The middle element 00 can be installed at any position of the distributor, also if the distributor was already in use. A middle or end element MX-F 7 or MX-F 0 must follow a middle element 00. Description MX-F MX-F MX-F 7 MX-F 0 MX-F 00 MX-F 00 Proximity switch without without without without Mx right Mx left Order-no

16 Elements The proximity switch is delivered with a welded cable of 0, m.another cable can be installed at this cable. This must be ordered seperate (see page 7). Installation dimensions: Mx Technical data of proximit switch: Connection: poles / Mx plugable Switch type: DC PNP NO contact Current load: 00 ma Current consumption: < ma Voltage: 0-0 V DC perm. ambient temperature: - C to +70 C perm. operating pressure: max. 0 bar for grease Protection class: IP 7 0, m SW Ø, 0 0,,7 0, Functional description The piston () of the element 00 is moved by the flowing lubricant. This flows towards the proximity switch () and initiates a signal. This signals can be processed differently depending on the control type of type of use. Sectional drawing: SW 0 SW 0 br sw bl + 0 to 0 V DC Input control or SPS - Ground End element for progressive distributor MX-F: End elements are also available with four different outputs (see table). End elements can be delivered with an installed lubrication nipple. By means of the lubrication nipple also the progressive distributor MX-F can be lubricated manual. Conical form grease nipple M0xk Order-No.: 0970 Description MX-F MX-F MX-F 7 MX-F 0 MX-F MX-F MX-F 7 MX-F 0 Form grease nipple without without without without with with with with Order-No

17 Plug and cable for proximity switch Elements 00 are delivered with an already welded cable, length 0, m. Various sockets with different cable lengths are available. They must be ordered separately. Connection cable no for connection to external control units or for connection to a control with a Hirschmann plug: For connecting the proximity switch to external control units or for connection to a control with a Hirschmann plug, connection cables no with straight sockets Mx for the proximity switch are available in lengths of m, m and 0 m. The connecting diagrams can be found in the description of the respective control unit. For the connection to the integrated controls BEKA-troniX and EP-tronic with bayonet connector, a connection cable no with lengths of m and m is available, with a straight socket Mx on one end for the proximity switch and a straight or angular plug Mx on the other end for connecting to the control unit. The connection cables can also be combined. In order to connect existing proximity switches with M8x connecting threads to the integrated controls BEKA-troniX and EP-tronic with bayonet connector, an adapter is available with a straight socket M8x for the proximity switch and a straight plug Mx. The plug and socket are connected by a cable with a length of 0 cm. This adapter can be used to connect a connection cable no and no. If a proximity switch Mx must be connected to an existing system via a cable for a proximity switch M8x, e. g. if the proximity switch had to be replaced previously, an adapter cable of 0 cm length with a straight socket Mx for the proximity switch and a straight plug M8x for connection to the existing cable can be ordered. Socket Mx for connecting to the proximity switch Cable length m m 0 m Order-no Connection cable no for connection to the integrated controls BEKA-troniX and EP-tronic with bayonet connectors: Straight plug Mx for connecting to the integrated control units BEKA-troniX and EP-tronic with bayonet connector Socket Mx for connecting to the proximity switch Plug Mx for connecting to the connecting cable no and no Socket M8x for connecting to the proximity switch Order-no: Socket Mx for connecting to the proximity switch Plug M8x for connecting to the connecting cable of the existing device Order-no: Angular plug Mx for connecting to the integrated control units BEKA-troniX and EP-tronic with bayonet connector Cable length m m m m Plug type straight straight angular angular Order-no Socket Mx for connecting to the proximity switch 7

18 Elements with optical stroke pin control or control pin indication Elements of progressive distributor MX-F can also be fitted with an optical stroke pin control. This functional test element does not supply any electrical data. However, a distributor can be upgraded any time with an optical stroke pin control by removing the piston lock screw () and screwing in the optical stroke pin control (). This is only possible for the middle or end elements MX-F 7 and MX-F 0. Warning: This process must be carried out paying attention to utmost cleanness. Functional description: The plunger () is shifted towards the outside (in the example shown to the right) when the piston () is operated and the control pin () becomes visible. Control pin and plunger are moved back into their starting position by the spring (), as soon as the piston is shifted to the other side by the grease (see functional description for MX-F distributors on page ). Order-no for optical stroke pin control: MX-F distributor and optical stroke pin control: Optical stroke pin control attached to the disk of a progressive distributor: Installation dimensions: 8 SW Contrary to the optical stroke pin control the control pin indication cannot be subsequently installed and it can only be installed in the middle elements MX-F 7 and MX-F 0 as well as in end elements MX-F 7 and MX-F 0. The installation must be indicated when ordering. Progressive distributors can be upgraded with a control pin indication by exchanging the respective distributor disk.. MX-F distributor with attached control pin indication (primed): Functional description: In the case of control pin indication the plunger (7) is directly connected with the piston of the progressive distributor (8). At every stroke the plunger (7) is forcibly extracted or retracted. Output Name per outlet Middle element 7 mm³ MX-F 7 Middle element 0 mm³ MX-F 0 End element 7 mm³ MX-F 7 End element 0 mm³ MX-F 0 Outlet dia. mm mm mm mm Order-no Element of a progressive distributor MX-F with a attached control pin indication: Installation dimensions: 8. 7 SW 0 8

19 Elements with pressure indicator The outlets or the distributor inlet of the progressive distributor MX-F can be equipped with a pressure indicator, i. e. excess pressure is optically indicated. This display element does not supply any electronic data. The pressure indicator can be upgraded at any time, as it is simply screwed into the distributor outlets between the distributor element and the cap screw or into the distributor inlet between the screw connection and the initial element of the progressive distributor. Pressure indicator attached to an MX-F distributor Screwed into the distributor inlet: Pressure indicator (not primed) Screwed into the distributor outlet: Pressure indicator (primed) Warning: This process must be carried out paying attention to utmost cleanness! Functional description: In case of excess pressure the pin () is primed and the bolt () is visibly lifted against the spring force. In the case of decompression the spring () presses the bolt () and the pin () back into the starting position. Pressure indicators can be ordered for different pressure ranges (see table). The pressure range is set by the spring (). Functional description: Order-no: Pressure (bar) Color Pressure indicator according to FAZ silver red white yellow black green blue Installation dimension: R/8 k. M0x 0 M0x 9

20 Extension or shortening of distributors Due to the disk construction of the progressive distributors MX-F they can be adapted to different operating conditions at any time. If lubrication areas need to be added or become unnecessary, the distributor can be extended or shortened by addition or removal of distributor disks. Description: Remove the tension rods (), which hold the distributor together Separate the distributor at the required place Add or remove the respective distributor disks Screw the distributor together with the respective tension rods and one toothed disk each (see table) Warning: Utmost cleanness is essential for this work. Note: An MX-F distributor must always consist of a minimum of three and a maximum of outlet elements. MX-F distributor /7, to which three distributor disks should be added: Tooth lock washer Order-no: MX-F distributor, view from above: If one of the O-rings used for the sealing of the distributor between the individual elements is damaged and the sealing is no longer sufficient a set of O-rings can be ordered containing all O-rings fitted in MX-F distributors. Sealing set for initial elements: Order-no: Sealing set for middle elements: Order-no: Warning: When mounting the distributors back in, it must be ensured that the pistons of the distributors are in a horizontal position. The mounting area must be level and obstruction-free. To facilitate the drilling of the mounting holes for the distributor a drilling template is available, Order-no: Table of tension rods: Dimension of Dimension of distributor tension rod Order-no MX-F / M x MX-F /8 M x MX-F /0 M x MX-F / M x MX-F 7/ M x MX-F 8/ M x MX-F 9/8 M x MX-F 0/0 M x MX-F / M x MX-F / M x Mounting position of the distributors: Correct: Incorrect: 0

21 Ordering key Distributor input: The progressive distributor MX-F is available with three different types of input connections or without connection at the distributor input. The screw connection type must be indicated before the diameter when ordering: M0x without screw connecting (in this case the indication of diameter is not necessary ) WE for angular coupling GE for straight coupling WS for swivel angular coupling If no coupling type is indicated, then an angular coupling dia. will be delivered. Distributor outlet: The distributor outlet is available with cap screws, plug-in connections and two types of non-return valves. The screw connection type must be indicated before the diameter when ordering: M0x without screw connecting (in this case the indication of diameter is not necessary ) US for cap screws GS for plug-in connections RVAfor non-return valves with DKR and US RVB for non-return valves with SR and UM If no screw connection type is indicated, cap screws dia. or in case of installation of a proximity switch a RVB0 will be delivered. Sample order: Position of outlets Outlet Outlet locked R Inlet 7* 7* 7* Pipe-dia. Lock screws and outlets sealed by distributor bridges are indicated by a dash (-). For distributor bridges, the sealing screw to be removed must be indicated by an asterisk (*). Elements 00 must be marked with NS00 on the installation side of the proximity switch. The indication of the metering quantity is not necessary as there is no metering of dummy elements. The sealed outlet on the opposite side of the proximity switch must be marked with a dash (-). L Pipe bridge Pipe-dia. Outlet Output elements * = Sealing screw removed! Dosing quantities: The dosing quantities must be indicated on each side of the distributor inlet in the direction of the distributor end. The dosing quantities are indicated with the names on page. For combined outlets, the dosing quantities names are added (see page ). For the installation of distributor bridges or a pipe bridge, a plus (+) has to be indicated instead of the slash. Type Number of output elements Number of outlets Tube diameter inlet Tube diameter outlets Position of connections Dosing quantities R 00* / -* / -*NS00 MX-F / - WE / RVB L / 0 X