ACRO USER MANUAL BALLSCREW DRIVEN D SERIES

Transcription

1 ACRO USER MANUAL BALLSCREW DRIVEN D SERIES

2 WARNING Only authorized personnel are permitted to disassemble the linear actuators. All linear actuators have serial numbers installed at the drive ends. Please use this number for all inquires. WARRANTY AND LIMITATIONS OF LIABILITY For warranty information, visit Technical support is available from: Bimba Manufacturing Company S Governors Hwy University Park, Illinois Phone: Toll Free: BIMBA Fax: cs@bimba.com 2

3 TABLE OF CONTENTS 4 General Information 8 Spare Parts 4 4 Ordering Codes Operating Ranges Disassembly Ordering Spare Parts Parts List for LP Style Ballscrew Actuators 5 Installation Mounting to the Carriage Mounting the Actuator Mounting a Motor Alignments 12 Troubleshooting 12 Common Issues 7 Maintenance General Lubrication Linear Bearings Lubrication Ballscrew 3

4 GENERAL INFORMATION ORDERING CODES CARRIAGE TYPE CARRIAGE NUMBER OF CARRIAGE LENGTH BEARING BLOCKS LP15S LP20S A STROKE LENGTH LEAD 5 5mm lead 10 10mm lead 16 16mm lead NS SCALE No Scale B XXXX (mm) 20 20mm lead LS Linear Scale LP - 15S - B SD NS - XX STYLE MODULE DRIVE RATIO SPECIAL LP 15S BD Belt Drive XX: 1, 1.5, 2 20S SD Standard Drive OPERATING RANGES TEMPERATURE RANGES FOR NORMAL OPERATION OF THE ACTUATOR COMPONENTS Linear Bearings Ball Bearings Ballscrew -15 C to +240 C -30 C to +250 C -15 C to +180 C 4

5 INSTALLATION MOUNTING TO THE CARRIAGE The carriages in both the size LP15 and LP20 actuators have 6 mm x 15 mm deep tapped holes along with dowel holes for proper alignment. When mounting a plate to the carriage, be sure that the plate is flat to insure a complete mating surface. If the plate is not flat, or if the bolts are too long, this action could induce a bending moment into the outside of the T-slots on the carriage. This could result in a premature failure in the carriage and an unsafe condition. MOUNTING THE ACTUATOR Support of the linear actuator should only be on the aluminum extrusion body; never put supports under the drive end or the support end. These components could misalign the ballscrew system and cause premature failure of the linear actuator. The body should be fully supported if practical. For long strokes, support the actuator body at least every meter. The linear actuator aluminum bodies are provided with 8 mm wide extruded slots for mounting. The body can be easily clamped down to the supporting plate by means of the optional clamps. Both size LP actuators use the clamp #CL

6 INSTALLATION MOUNTING A MOTOR All other methods of driving the input shaft should include the use of a high quality flexible coupling. Hard coupling directly to the actuator shaft can cause excess wear and could cause a failure of the actuator. NOTE: Bimba recommends the use of motors with a properly sized fail-safe brake on all vertical applications. ALIGNMENTS Care should be taken when aligning linear actuators with a moving machine component. Make sure that any bending or twisting of the actuator from other machine components is eliminated or minimized in reference to the linear actuator. 6

7 MAINTENANCE GENERAL General maintenance of the linear actuators is to keep the actuator clean to keep dirt from accumulating inside the actuator. Inspection of the actuator, clamps, tee bolts, mounting hardware, and other parts should be done periodically to insure proper alignment and that the operation did not change from the initial installation. LUBRICATION: LINEAR BEARINGS With the new Self-Lubricant Linear Guideway If your actuator has a serial number LP230 and above, do not use grease. Use only oil as instructed below. The linear guide blocks are of the self-lubricant type. These blocks require oil installed into the side of the block through the side access hole on the side of the extrusion. Simply remove the plug in the extrusion and drive the carriage to the middle, align the oil fitting with the access hole and install the oil directly into the block. Lubrication for these linear bearings is recommended at least every 10,000 km of travel. Previous Linear Actuators Lubrication is recommended for the linear bearings at least every 100 km of travel. Extreme operating conditions (high temperatures, high speeds, heavy loading) require more frequent and/or different lubrication. The actuator carriages are designed to distribute the grease to the linear bearings through channels and fittings internal to the actuator. A grease fitting is supplied on either side of the carriage for lubrication. This fitting has a M6 thread and a needle nose ball detent interface to your grease gun. Grease is recommended at linear speeds up to 3 meters per second and oil lubrication above 3 meters per second. The maximum speed of the actuators should be 5 meters per second. Consult Bimba for application data. Grease should be a lithium-based lubricant. The amount of re-lubrication of grease is 5 cm 3 per bearing block. Oil should be 30~150cst with a feeding rate of 0.3 cm 3 /hour per bearing block. Review your part number for the appropriate number of bearing blocks installed in your actuator. LUBRICATION: BALLSCREW The ballscrew supports use sealed, angular contact thrust and deep groove ball bearings with a lifetime lubricant so that no maintenance is required. The ballscrew and ballnut require grease lubrication. Simply lift the bellows or Stainless Steel cover and install grease to the ballscrew. Old designs can also use the side lubrication holes and remove the plugs from the extrusion and apply grease to the ballscrew. 7

8 SPARE PARTS DISASSEMBLY Call Bimba before any disassembly of the linear actuator. Bimba s warranty may be voided if the customer disassembles the linear actuator. Qualified personnel should do disassembly of the ballscrew actuator only. If disassembly is required, then the first thing to be removed is the end plate covers. One of the end plate covers (on the drive end) has the Intek logo, part number, and serial number engraved into the top surface. Next to remove the sealing strip, end of the actuator is a sealing strip retainer, which is a steel block with two tapped holes and knurled on top to help hold the stainless steel strip. Remove the bolts holding the sealing strips from the retainers at each end. Next, remove the top carriage from the bottom carriage. 8

9 SPARE PARTS DISASSEMBLY, CONTINUED To get to the ballscrew and the linear bearings, the aluminum cover needs to be removed. In the second picture above, there are two BHCS on each end of the cover, remove these and the cover can then be removed. To remove the ballscrew, the end thrust bearings must be removed and the ballnut retainer from the bottom carriage. There are four BHCS and two dowel pins as shown below. After removal of those, the bottom carriage can be slide out of the way as shown here. Now the thrust bearings will need to be removed to totally remove the ballscrew. The retaining nut and the spacer will first be removed. Then take the bearing retainer off the drive plate. 9

10 SPARE PARTS DISASSEMBLY, CONTINUED Removing the drive plate from the extrusion will allow you to remove the ballscrew completely from the actuator if replacement is required. This will also allow the bottom carriage to be slide off of the linear rails to replace the linear bearings. When re-assembly is being done, make sure the roller guides are in place in the strip guides that are bolted to the top carriage. (This is the bottom view.) To reassemble, reverse this procedure, making sure that adequate tension is on the strip to insure that buckling of the strip does not occur. The actuator should be driven back and forth numerous times to make sure the linear bearings and the ballscrew are running true. The carriages (top and bottom) should be indicated in with a dial indicator for run-out; hold this to +/ " to original specifications. ORDERING SPARE PARTS Please use the linear actuator serial number installed at the drive end for all inquires along with the original purchase order number (if available). Describe the part required and contact Bimba: Bimba Manufacturing Company S Governors Hwy University Park, Illinois Phone: Toll Free: BIMBA Fax: cs@bimba.com 10

11 SPARE PARTS PARTS LIST FOR LP STYLE BALLSCREW ACTUATORS ITEM QUANTITY LP15S ACTUATORS LP20S ACTUATORS DESCRIPTION 1 1 LP15-05S LP20-05S Drive Plate 2 1 LP15-06S LP20-06S Tail Plate 3 1 LP15-01S LP20-01S Extrusion 4 1 LP15-08 LP20-08 Retainer 5 1 LP15-03S LP20-03S Cover 6 1 LP15-11S LP20-11S Bottom Carriage 7 1 LP15-15S LP20-15S Ballscrew 8 1 LP15-21S LP20-21S Top Carriage 9 1 LP15-34 LP20-34 Retainer Nut 10 4 LP15-17S LP20-17S Magnet 11 4 LP15-30 LP20-30 Roller Guide 12 2 LP20-13S LP20-13S S.S. Cover Strip 13 2 LP15-16A LP20-16A Linear Rail 14 2 or 4 LP15-16B LP20-16B Linear Bearings 15 2 LP15-31 LP20-31 Strip Guides 16 1 LP15-15S-NUT LP20-15S-NUT Ballnut 17 1 LP15-09 LP20-09 Spacer 18 1 LP15-33 LP20-33 Support Bearing 19 1 LP15-32 LP20-32 Drive Bearing 20 2 LP15-07 LP20-07S End Plate Covers 21 4 LP20-12S LP20-12S Strip Retainers 22 1 LP15-14 LP20-14 Ballscrew Retainer 6A 1 LP15-13 LP20-10S Single Bottom Carriage 8A 1 LP15-10 LP20-28S Single Top Carriage 11

12 TROUBLESHOOTING COMMON ISSUES ISSUE CAUSE SOLUTION Ballscrew noise Ballscrew need lubricant Ballscrew speed is too high Add lubricate to ballscrew Slow down the speed Excess friction Low lubrication Lubricate bearing blocks Improper positioning Fixed bearing locknut is loose Retighten the locknut and setscrews 12

13 Your stocking distributor is: TECHNICAL DOCUMENTS Visit the Bimba website for additional models, drawings, and further documentation. SUPPLIER CONTACT To purchase pinch valves, accessories, or receive further information, contact your local Bimba distributor or contact Bimba directly. Bimba Electric Motion Bimba Manufacturing Headquarters 230 Executive Drive, Suite 217 Cranberry Twp, PA S Governors Hwy University Park, Illinois Phone: Fax: Phone: Toll Free: BIMBA Fax: cs@bimba.com cs@bimba.com Copyright 2016 Bimba Manufacturing Company. All Rights Reserved. HM-BIM-EMUM Effective December