Product description DSH screw jack Conventional screw jack applications consist of one or more screw jacks. Usually they are driven by one electric motor and typically connected via drive shafts or couplings resulting in efficiency losses within the drive train. Screw jacks fitted with worm/wormwheel or bevel gear sets often reach their maximum limit when operating with high duty cycles or high linear speeds. These are two of the main reasons for the development of our new quiet and efficient lifting system. After a long development program with the supprt of local universities the new DSH screw jack has been created. The INKOMA-DSH screw jacks have no internal gear system. Instead a special Torque motor is used to directly drive the ballscrew spindle resulting in smooth backlash free rotation. In the DSH system there are virtually no mechanical losses. Specially selected bearings ensure the spindle can withstand both tensile and compressive loads. The compact drive unit has a rigid construction and is suitable for high dynamic applications. Cycle times of 7 cycles per second and lifting speeds of m/min are achievable. Repeatable positioning accuracy is also very high. The DSH-units can be synchronised when working together within a system, allowing the screw jacks to be positioned at different levels within the application. The DSH-system has high energy efficiency. During operation the torque motor is used to control the speed and hold position of the ballscrew spindle. An integrated brake is also available for increased safety. The spindle can be mounted on either side of the DSH unit. The DSH unit is available with a complete control system (Siemens system used on standard version). Alternatively other manufacturers equipment can also be specified. In addition to the basic versions, customer specific executions are also possible e.g. spindle diameter, spindle pitch, mounting dimensions. Please contact us with your special requirements.. www.inkoma.de
Contents list DSH screw jacks with rotating spindle and translating spindle Versions rotating version (R) translating version (SA, SVA) page i Technical information requirements, advantages and application areas comparison between DSH and HSG lifting units page 4-5 i Selection DSH screw jack selection of the DSH and the spindle (pitch) page 6-7 Dimensions DSH- - DSH-5 ball screw spindle, translating version (SA, SVA) page 8-9 Dimensions DSH- - DSH-5 ball screw spindle, rotating version (R) page - Flanged nut dimensions flanged nut to DIN 695 for ball screw spindle rotating version (R) page -............... DSH quesionnaire / accessories for quotation purposes accessories for translating version (SA, SVA) page 4-5............... DSH accessories accessories for rotating version (R) page 6. www.inkoma.de
Versions Rotating and translating spindle Two versions exist: Rotating version Translating version For both versions ballscrew spindles (KGS) are used. Rotating version (R): In rotating version (R) the ballscrew spindle is fixed in the rotor of the DSH-unit. Linear motion of the nut results from rotation of the spindle. Translating version ( SA, SVA): In translating version ( S) linear lifting motion results from the movement of the non rotating spindle through a special rotating integral nut. The spindle is guided through the DSH unit and must not be allowed to rotate. This can be done by customers design, e.g. with a guide. Otherwise if this is not possible spindle rotation can be prevented by the use of an anti-turn device (version SVA). Over-travel of the spindle is prevented by a travel limiter (version SA). Rotating spindle Translating spindle Version R Version SA Version SVA Ball screw spindle. www.inkoma.de
Technical information Requirements, advantages and application areas Requirements for the DSH-system Fast cycle times and high duty applications (e.g. testing machines, packaging machines, printing machines) High lifting speed with large lifting forces (e.g. machine tools, woodworking machines, special purpose machines) Large centre distances between spindles and different height levels between lifting units (e.g. entertainment equipment, theatre lifting system) Backlash free and repeatable high positional accuracy (e.g. testing machines, machine tools, printing machines, special purpose machines) Different load factor between lifting units (e.g. working platforms, stage lifts) Advantages of the DSH screw jack Backlash free and repeatable high positional accuracy Lifting speeds of m/min (standard) are achieveable with a lifting force of kn Variable speed capability with programmable ramps for acceleration and deceleration profiles High torque and power from extremely compact dimensions Minimal maintenance is required to lubricate the ballscrew spindle Simplified machine construction, easier installation any operation High power efficiency Continuous-running operation (%) is possible Available with integrated brake Fast cycle times and high duty applications It is possible to use more than one DSH screw jack on one spindle Applications for HSG-screw jacks and DSH-units Testing machines Production facilities Plant engineering and construction Printing industry Special purpose machinery Woodworking machines Foundries and roller plants Food industry Stage lifts Solar energy plant Working platforms, lifting platforms Paper industry Plastics industry Packaging machines. www.inkoma.de 4
Technical information Comparison between DSH and HSG lifting units Conventional screw jack application (HSG) For applications with different height levels between lifting units and when using conventional screw jacks like our HSG range, it is usually necessary to use bevel gearboxes and cardan shafts to connect each screw jack and transmit torque. This method may cause backlash to be present within the system and can mean that all of the scew jacks are not moving at the same time and therefore accurate parallel lifting of the load is not possible. DSH -System The DSH units can be synchronised when working together within a complete lifting system. Different height levels can be compensated for due to the positional control functionality. This also ensures exact parallel movement is possible regardless of the distance between each DSH unit. Repeatable positioning accuracy is also very high and unevenly distributed loads can be accommodated.. www.inkoma.de 5
Selection DSH screw jack Method:. Preselection of the DSH-unit with the max. static lifting load F stat. (see page 9/). Selection of the DSH and the spindle (pitch) with the graph (see page 7) See example shown below right. Explanations of the graphs: DSH- testing machine The graphs are valid for air cooled motors. The lifting force and lifting speed are dependent on the duty cycle. Lifting Lowering 4s s s 4s 4s The duty ED [%/h] is derived from the time in operation (lifting and lowering) and the inactive time between successive operations Idle s s s Total cycle time s 4s ED per cycle in % % Cycles per working day Explanation of the graph: Example for the duty cycle Looking at duty graph (DSH--KGS-x) the maximum operating conditions to obtain % duty (ED) are a 7,8kN lifting force with a lifting speed of 4m/min.Therefore lines to each axis can be drawn from these maximum values to produce a rectangle (area shaded dark blue) to show the continuous (ED) operating area. The same principle can be applied to the maximum values shown for % duty () to produce the operating rectangle (area shaded light blue).in this way full data can be obtained to find the maximum operating duty, speed or lifting force for any point on the operating duty line. Example : Which standard spindle is suitable for a lifting load of kn and duty ED of 4 %/h? The result of the preselection is DSH- (see page 9/) Required lifting speed is 6 m/min The graph shows: With a lifting speed of 6 m/min and ED of 4 %/h a lifting load of 7 kn is possible. lifting speed [m/min] 5 5 5 5 5 5 5 lifting force [ kn] DSH--KGS-x5 DSH--KGS-x DSH--KGS-x4 Example Selection of the DSH : DSH--KGS-x. www.inkoma.de 6
Selection Selection of the DSH and the spindle (pitch) DSH- lifting speed [m/min] 5 5 5 5,5,5,5,5 4 4,5 lifting force DSH--KGS-5x5 DSH--KGS-5x DSH--KGS-5x5 DSH- lifting speed [m/min] 5 5 5 5 4 6 8 lifting force DSH--KGS-5x5 DSH--KGS-5x DSH--KGS-5x5 DSH- DSH-4 5 DSH--KGS-x5 DSH--KGS-x DSH--KGS-x4 5 DSH-4-KGS-5x DSH-4-KGS-5x DSH-4-KGS-5x5 lifting speed [m/min] 5 5 5 5 5 5 lifting force lifting speed [m/min] 5 5 4 5 6 lifting force DSH-5 lifting speed [m/min] 5 5 5 5 4 6 8 lifting force DSH-5-KGS-6x DSH-5-KGS-6x DSH-5-KGS-6x64 Attention! The graphs are using theoretical and sampled data. It is necessary to use a suitable safety factor. Please do not hesiste to contact our Technical Sales Staff should you need assistance with product selection and design with the lifting system.. www.inkoma.de 7
Dimensions DSH- - DSH-5 Ball screw spindle, translating version (SA, SVA) Versions: SA: Translating spindle with travel limiter SVA: Motor: Accessories: Questionnaire: Translating spindle with rotation prevention and travel limiter OB: without additional brake MB: with additional brake see page 5 see page 4-6 stroke + X H -, Z = stroke + A A N H KGS dxp D 5 Ø d h9 A B H Version SA, SVA d Ø H 5 H 6,H deep 7 Ø H 4,5 8x45 Ordering example: DSH screw jack Size Translating spindle with rotation prevention and travel limiter Stroke mm Ball screw / size DSH - - SVA - - KGS x - OB Without additional brake. www.inkoma.de 8
Order code DSH--SA/SVA-stroke-KGS 5x5-OB/MB DSH--SA/SVA-stroke-KGS 5x-OB/MB DSH--SA/SVA-stroke-KGS 5x5-OB/MB DSH--SA/SVA-stroke-KGS 5x5-OB/MB DSH--SA/SVA-stroke-KGS 5x-OB/MB DSH--SA/SVA-stroke-KGS 5x5-OB/MB DSH--SA/SVA-stroke-KGS x5-ob/mb DSH--SA/SVA-stroke-KGS x-ob/mb DSH--SA/SVA-stroke-KGS x4-ob/mb DSH-4-SA/SVA-stroke-KGS 5x-OB/MB DSH-4-SA/SVA-stroke-KGS 5x-OB/MB DSH-4-SA/SVA-stroke-KGS 5x5-OB/MB DSH-5-SA/SVA-stroke-KGS 6x-OB/MB DSH-5-SA/SVA-stroke-KGS 6x-OB/MB DSH-5-SA/SVA-stroke-KGS 6x64-OB/MB max. static load ) F stat. %/h F eff. ED 5%/h Effective load F eff. ED 8%/h F eff. F eff. P [mm] V lift ED% [m/min] 5,9,9,,6 5 6, 5,9,5,,8,5 5,8,6,4, 5,, 8,6 5,8 4,7 5 6, 5,8 4,,9,,5,,7,,9 5, 5 5, 5, 9,8 5,8 5 4, 5, 5, 9,9 7,9 8, 5 5,,8,5, 4, 5 5, 44,,7 5,5 5, 5 9,5, 5,8,8, 5,8 8,8 6, 5, 5 5,, 8,9 58, 46,6 5, 5,9 4,5 9,,, 6,8,6 9, 7, 64, %/h Lift per revolution max. lifting speed ) Nominal speed ) n [/min] 5 5 5 5 5 5 8 8 8 5 5 5 5 5 5 ) The specification of the max. lifting force is only a guide to enable pre-selection of the inital DSH-size. The actual dynamic lifting force possible is dependant upon the operating conditions. ) Higher lifting speeds are available on request. ) The rated speeds are valid for an operating duty of %/h. Higher duty cycles are possible but are dependant upon the application, and additional cooling the DSH-unit may be required. Dimensions [mm] Order code DSH--SA/SVA-stroke-KGS 5x5-OB/MB DSH--SA/SVA-stroke-KGS 5x-OB/MB DSH--SA/SVA-stroke-KGS 5x5-OB/MB KGS dxp 5x5 5x 5x5 D 5 M4 M4 M4 d SA Ø d SVA d SA X SVA X A A N H H H H 4 H 5 H 6 H 7 5 5 78 85 5 5,5,5 9 4 M6,5 5 5 9 5,5,5 9 4 M6,5 5 5 8 45 95 75,5,5 9 4 M6,5 DSH--SA/SVA-stroke-KGS 5x5-OB/MB DSH--SA/SVA-stroke-KGS 5x-OB/MB DSH--SA/SVA-stroke-KGS 5x5-OB/MB 5x5 5x 5x5 M4 M4 M4 5 5 78 85 5 5 5,5,5 9 4 M6,5 5 5 9 5 5,5,5 9 4 M6,5 5 5 8 45 95 75 5,5,5 9 4 M6,5 DSH--SA/SVA-stroke-KGS x5-ob/mb DSH--SA/SVA-stroke-KGS x-ob/mb DSH--SA/SVA-stroke-KGS x4-ob/mb x5 x x4 M M M 4 4 4 9 9 9 98 58 5 4 8,5,5 8 58 M,5 9 9 8 7 4 8,5,5 8 58 M,5 9 9 98 6 4 8,5,5 8 58 M,5 DSH-4-SA/SVA-stroke-KGS 5x-OB/MB DSH-4-SA/SVA-stroke-KGS 5x-OB/MB DSH-4-SA/SVA-stroke-KGS 5x5-OB/MB 5x 5x 5x5 M6 M6 M6 9 9 6 78 48 8,5,5 54 M,5 9 9 56 6 8 6 48 8,5,5 54 M,5 9 9 46 5 98 5 48 8,5,5 54 M,5 DSH-5-SA/SVA-stroke-KGS 6x-OB/MB DSH-5-SA/SVA-stroke-KGS 6x-OB/MB DSH-5-SA/SVA-stroke-KGS 6x64-OB/MB 6x 6x 6x64 M6 M6 M6 95 9 8 44 78 48 55,5,5 54 M,5 95 9 68 74 8 6 48 55,5,5 54 M,5 95 9 6 4 9 48 55,5,5 54 M,5. www.inkoma.de 9
Dimensions DSH- - DSH-5 Ball screw spindle, rotating version (R) Versions: R: Rotating spindle Motor: OB: without additional brake MB: with additional brake KGS dxp Ø D 5 j6 Accessories: Questionnaire: see page,, 6 see page 4-6 Z = stroke + A A L stroke A E Ø d h9 A Version R Dimensions of flanged nut see page H -, H H B Ø H 5 H 6,H deep 7 Ø H 4, 5 8x45 Ordering example: DSH screw jack Size Rotating spindle Stroke mm Ball screw / size DSH - - R - - KGS x - OB Without additional brake. www.inkoma.de
Order code DSH--R-stroke-KGS 5x5-OB/MB DSH--R-stroke-KGS 5x-OB/MB DSH--R-stroke-KGS 5x5-OB/MB DSH--R-stroke-KGS 5x5-OB/MB DSH--R-stroke-KGS 5x-OB/MB DSH--R-stroke-KGS 5x5-OB/MB DSH--R-stroke-KGS x5-ob/mb DSH--R-stroke-KGS x-ob/mb DSH--R-stroke-KGS x4-ob/mb DSH-4-R-stroke-KGS 5x-OB/MB DSH-4-R-stroke-KGS 5x-OB/MB DSH-4-R-stroke-KGS 5x5-OB/MB DSH-5-R-stroke-KGS 6x-OB/MB DSH-5-R-stroke-KGS 6x-OB/MB DSH-5-R-stroke-KGS 6x64-OB/MB max. static load ) F stat. %/h F eff. ED 5%/h Effective load F eff. ED 8%/h F eff. F eff. P [mm] V lift ED% [m/min] n [/min] 5,9,9,,6 5 6, 5 5,9,5,,8,5 5 5,8,6,4, 5, 5, 8,6 5,8 4,7 5 6, 5 5,8 4,,9,,5 5,,7,,9 5, 5 5 5, 5, 9,8 5,8 5 4, 8 5, 5, 9,9 7,9 8, 8 5 5,,8,5, 4, 8 5 5, 44,,7 5,5 5, 5 5 9,5, 5,8,8, 5 5,8 8,8 6, 5, 5 5, 5, 8,9 58, 46,6 5, 5 5,9 4,5 9,,, 5 6,8,6 9, 7, 64, 5 %/h Lift per revolution max. lifting speed ) Nominal speed ) ) The specification of the max. lifting force is only a guide to enable pre-selection of the inital DSH-size. The actual dynamic lifting force possible is dependant upon the operating conditions. ) Higher lifting speeds are available on request. ) The rated speeds are valid for an operating duty of %/h. Higher duty cycles are possible but are dependant upon the application, and additional cooling the DSH-unit may be required. Dimensions [mm] Order code DSH--R-stroke-KGS 5x5-OB/MB DSH--R-stroke-KGS 5x-OB/MB DSH--R-stroke-KGS 5x5-OB/MB KGS D 5 d A A A dxp 5x5 5 5 5 5x 5 4 5x5 5 5 75 75 E H H H H 4 H 5 H 6 H 7,5,5 9 4 M6,5,5,5 9 4 M6,5,5,5 9 4 M6,5 DSH--R-stroke-KGS 5x5-OB/MB DSH--R-stroke-KGS 5x-OB/MB DSH--R-stroke-KGS 5x5-OB/MB 5x5 5 5x 5 5x5 5 4 5 5 5 75 75 5,5,5 9 4 M6,5 5,5,5 9 4 M6,5 5,5,5 9 4 M6,5 DSH--R-stroke-KGS x5-ob/mb DSH--R-stroke-KGS x-ob/mb DSH--R-stroke-KGS x4-ob/mb x5 4 x 4 x4 4 6 67 7 5 5 8,5,5 8 58 M,5 8,5,5 8 58 M,5 8,5,5 8 58 M,5 DSH-4-R-stroke-KGS 5x-OB/MB DSH-4-R-stroke-KGS 5x-OB/MB DSH-4-R-stroke-KGS 5x5-OB/MB 5x 5 5x 5 5x5 5 9 9 4 6 6 5 5 4 8,5,5 54 M,5 4 8,5,5 54 M,5 4 8,5,5 54 M,5 DSH-5-R-stroke-KGS 6x-OB/MB DSH-5-R-stroke-KGS 6x-OB/MB DSH-5-R-stroke-KGS 6x64-OB/MB 6x 4 6x 4 6x64 4 5 4 5 6 6 9 9 45 55,5,5 54 M,5 45 55,5,5 54 M,5 45 55,5,5 54 M,5. www.inkoma.de
Dimensions DSH- - DSH-5 Ball screw spindle, rotating version (R) - flanged nut dimensions INKOMA-flanged nut to DIN 695, for all normal connections of the screw jack to the moving element. KGS dxp Z = stroke + A L stroke L L A A B Lubrication connection Ø D 4 Ø D 4,5 B 9 B 9 A E Ø D g6 S L 4 -, Ø D -, Ø D Ø D Ø D Ø D Flanged nut DIN 695 (hole pattern ) Flanged nut DIN 695 (hole pattern ). www.inkoma.de
Order code DSH--R-KGS DSH--R-KGS DSH--R-KGS DSH--R-KGS DSH--R-KGS DSH--R-KGS DSH--R-KGS DSH--R-KGS DSH--R-KGS DSH-4-R-KGS DSH-4-R-KGS DSH-4-R-KGS DSH-5-R-KGS DSH-5-R-KGS DSH-5-R-KGS Hole pattern KGS A A A dxp 5x5 5 5 5x 4 5x5 5 75 75 5x5 5 5 5x 4 5x5 5 75 75 x5 6 5 5 x 67 x4 7 5x 9 5x 9 6 6 5x5 4 5 5 6x 5 6x 4 6 6 6x64 5 9 9 Dimensions [mm] B D D D D 4 E L L L L 4 S 48 4 6 5 6,6 5 5 M6 48 4 6 5 6,6 6 6 5 M5 ) 4 6 5 6,6 5 9 5 M6 48 4 6 5 6,6 5 5 M6 48 4 6 5 6,6 6 6 5 M5 ) 4 6 5 6,6 5 9 5 M6 6 5 8 65 9 66 6 M6 6 5 8 65 9 77 6 6 M6 ) 6 9 78 9 85 4 6 7 M8x 85 75 9 4 9 6 8 M8x 85 75 9 4 8 5 9 M8x 85 75 9 4 7 6 6 8 M8x 95 9 5 8 45 8 6 9 M8x 95 5 5,5 45 75 5 M8x 95 5 5,5 45 M8x. www.inkoma.de
Questionnaire for quotation purposes Company:... Department:... Contact:... Date:... Tel.:... Fax.:... Address:... Project:... Loads: No. of screw jacks in system:... Axial load Total system Per spindle dynamic static dynamic static Compressive load Tensile load Type of loading: steady oscillating shock increasing vibrating Stroke: Stroke length [mm]... Lifting speed [m/min]:... Application information: Usage per day in hours Working cycle: actual in 8 6 4... sec. min. Example: Usage per day in hours Working cycle: actual in 8 6 4... sec. X min. Lifting Lifting 4 4 Lowering Lowering 4 Idle Idle Total cycle time Total cycle time 4 ED per cycle in % ED per cycle in % Cycles per working day Cycles per working day Operational conditions: Environmental temperature from C... to C... dry humid dusty (define material):... other effects:... Details about the planned location and attitude Attitude: vertical horizontal inverted Spindle guidance: without guidance with guidance Requirements: Number of sets:... Quantity per year:... Required delivery:... Accessories: Please indicate the accessories required on the next page! For the best design please provide a drawing!. www.inkoma.de 4
Questionnaire Accessories for translating version ( SA, SVA) Tensile load, dynamic kn Tensile load, static kn Compressive load, dynamic kn Compressive load, static kn Dimension Z Rod end bearing Clevis Mounting flange Dimension Z ) Dimension Z ) Stroke Ball screw spindle Folding bellows Spiral protective sleeve Screw jack Trunnion adaptor Protective tube Bearing block Bearing flange Rotation prevention Control system Safety brake, emergency brake ) ) Dimension Z = Distance from the housing upper surface to the spindle end (- mm allowance from mounting face). Dimension Z = Gear housing upper surface to cetre line of connecting link. www.inkoma.de 5
Questionnaire Accessories for rotating version (R) Tensile load, dynamic kn Tensile load, static kn Compressive load, dynamic kn Compressive load, static kn Dimension Z Bearing Plate Stroke Ball screw spindle with flanged nut Dimension Z ) Folding bellows Spiral protective sleeve Screw jack Trunnion adaptor Bearing block Bearing flange Control system Safety brake, emergency brake ) Dimension Z= Distance from the housing upper surface to the spindle end (- mm allowance from mounting face). We reserve the right to make technical INKOMA - GROUP Headoffice Phone: +49/ ()5 6-9 -. changes. For current information go to Neue Reihe 44 Fax: +49/ ()5 6-9 -5 6 www.inkoma.de or your local sales office. D-86 Schandelah E-Mail: info@inkoma.de