CN204784637U - Adjustable backlash formula swing drives - Google Patents
Adjustable backlash formula swing drives Download PDFInfo
- Publication number
- CN204784637U CN204784637U CN201520510802.7U CN201520510802U CN204784637U CN 204784637 U CN204784637 U CN 204784637U CN 201520510802 U CN201520510802 U CN 201520510802U CN 204784637 U CN204784637 U CN 204784637U
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- inner ring
- pivoting support
- mounting hole
- bearing cap
- worm screw
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Abstract
The utility model discloses an adjustable backlash formula swing drives, it includes spiral case, slewing bearing, bearing, link bearing cap, worm, set screw and stiff end bearing cap. The utility model provides an adjustable backlash formula swing drives for worm and slewing bearing's meshing backlash is adjustable, and increase worm gear meshes the control range of centre -to -centre spacing, guarantees that the optimal value can be adjusted to to the sideshake between the worm gear flank, makes the engagement keep in the best, and then improves swing drives's working condition, improves swing drives's working property and life -span.
Description
Technical field
The utility model relates to revolution driving field, and particularly a kind of adjustable tooth side clearance formula revolution drives.
Background technique
Revolution drives and is made up of parts such as worm screw, pivoting support, spiral case, motors.Because critical piece adopts pivoting support, therefore can bear axial force, radial force, tilting moment simultaneously.Revolution drives to be compared with traditional revolution series products, has simple installation, is easy to the feature of maintenance, save installing space to a greater extent.This products application wide range, can be widely used in engineering machinery and the new energy fields such as heavy flat transport vehicle, container crane, truck-mounted crane, mining machinery, high-altitude operation vehicle, radar installations, sun-following solar power generation system.
When revolution drive installation is on main frame, the engaging tooth side clearance of pivoting support and worm screw has very important impact to host performance.For ensureing the going slick property that revolution drives and leveling style, the pivoting support driven for revolution and the backlash of worm screw have certain requirement.The worm screw of normally used device for revolving and driving is arranged in spiral case, and worm screw and spiral case are coaxial assemblings, after adjusting the back lash of worm screw and pivoting support, with locating stud, pivoting support are fixed on spiral case during assembling.The worm screw of the device for revolving and driving of such assembling and the meshing backlass of pivoting support are fixing, the shell mounting hole distribution circle that common revolution drives, pivoting support outer ring mounting hole distribution circle, the mounting hole distribution circle of inner ring, the standard pitch circle of raceway and worm gear has strict coaxality requirement, the mounting hole pitch circle diameter of pivoting support inner ring is definite value, because revolution drives the relative position of worm screw and spiral case mounting hole fixing, and the mounting hole of spiral case mounting hole and pivoting support inner ring is corresponding, therefore the distance between the mounting hole of worm screw and pivoting support inner ring is fixed, to meet the meshed center distance of worm and gear, high to the requirement of personnel and equipment in production process, backlash belongs to and can not adjust state.In the workplace of device for revolving and driving through being usually used in low-speed heave-load, along with the use continued, the wearing and tearing of pivoting support worm screw cause the increase of backlash, and again cannot regulate the value added compensating backlash, mesh impact is caused to continue to increase, the working condition that revolution drives sharply worsens, and substantially reduces the operating life that revolution drives, and increases user cost.
Summary of the invention
Technical problem to be solved in the utility model is to provide the revolution of a kind of adjustable tooth side clearance formula and drives, make the engaging tooth side clearance of worm screw and pivoting support adjustable, increase the regulation range of worm and gear meshed center distance, ensure that between worm and gear flank, sideshake can adjust to optimum value, engagement is made to remain on the best, and then improve the working condition of revolution driving, improve the service behaviour and life-span of turning round and driving.
For achieving the above object, a kind of adjustable tooth side clearance formula revolution that the utility model proposes drives, it comprises spiral case, pivoting support, bearing, connecting end bearing cap, worm screw, set screw and fixed end bearing cap, pivoting support and worm screw are arranged in spiral case, pivoting support comprises inner ring and outer ring, raceway is formed between inner ring and outer ring, inner ring is without gear ring, outer ring is for there being gear ring, outer ring and worm meshing, some mounting holes are fixedly installed in the middle part of inner ring, the mounting hole site of inner ring is in circumferentially same and form the mounting hole distribution circle of inner ring, the mounting hole of the inner ring round heart that distributes does not overlap with the center of circle of raceway, inner ring is connected with spiral case by set screw, worm screw two ends are connected with two bearings respectively, connecting end bearing cap is connected with spiral case respectively by screw with fixed end bearing cap, connecting end bearing cap and fixed end bearing cap gland are outside two bearings.
The mounting hole of described inner ring distribute the round heart and raceway the center of circle between be set to eccentric structure, offset is 0 ~ 2mm, and the mobility scale of the backlash of pivoting support and worm screw is-0.7 ~+0.7mm.
The mounting hole of described inner ring at least arranges three.
The processing method that the revolution of adjustable tooth side clearance formula drives is as follows:
(1) revolution of adjustable tooth side clearance formula drive in the manufacture of pivoting support and the main distinction of common pivoting support be that mounting hole on its inner ring distribute and justify and the realization of raceway offset, all the other are consistent with the processing method of common pivoting support.Eccentric mounting hole is at numerical control drilling machine colonel circle, and Jiao Yuan center and pivoting support raceway centres, then offset a variable toward X or Y-coordinate system, inputs normal hole machined program, mounting hole and positioning hole are machined.
(2) assembling according to the requirement of backlash, by rotating mounting hole and positioning hole corrected tooth side clearance, reaching designing requirement.
In revolution being driven, the mounting hole distribution circle of the inner ring of pivoting support coaxially changes bias into raceway, it is a kind of practical problem solved with the most simple and effective structure in production and use, without the need to new equipment, inherit existing maturation process, effect is mainly reflected in following two aspects:
(1) compared with common revolution driving, the revolution of adjustable tooth side clearance formula drives the tolerance range relaxing spiral case mounting hole and worm screw spacing, reduce difficulty of processing, namely spiral case mounting hole and worm screw spacing carry out adding man-hour according to theoretical value, if machining error is larger, also realization compensation is installed in the transposition by pivoting support inner ring, reduces spiral case reject rate.And relaxing of the tolerance range of spiral case mounting hole and worm screw spacing, also reduce the requirement to personnel and equipment, reduce the input of fixed assets, greatly reduce cost of production.
(2) common revolution drives when installing and using, and the regulated quantity of pivoting support worm tooth side clearance can only lean on bolt and mounting hole gap to ensure, regulated quantity is extremely limited.After adopting the revolution of adjustable tooth side clearance formula to drive, greatly can increase the regulation range of pivoting support worm meshing centre distance, ensure that between pivoting support worm screw flank, sideshake can adjust to optimum value.After gear wear, by the mounting type of inner ring transposition, readjust pivoting support worm meshing centre distance, make engagement remain on the best, and then improve the working condition of revolution driving, improve the service behaviour and life-span of turning round and driving.
The adjustable tooth side clearance formula revolution that the utility model proposes drives, make the engaging tooth side clearance of worm screw and pivoting support adjustable, increase the regulation range of worm and gear meshed center distance, ensure that between worm and gear flank, sideshake can adjust to optimum value, engagement is made to remain on the best, and then improve the working condition of revolution driving, improve the service behaviour and life-span of turning round and driving.
Accompanying drawing explanation
Fig. 1 is a kind of adjustable tooth side clearance formula revolution driving structure schematic diagram that the utility model proposes.
Fig. 2 is left TV structure schematic diagram.
Fig. 3 is pivoting support and worm meshing schematic diagram.
Fig. 4 is the adjustable tooth side clearance formula revolution driving structure schematic diagram of backlash when maximum value.
Fig. 5 is the adjustable tooth side clearance formula revolution driving structure schematic diagram of backlash when minimum value.
In figure: R is the mounting hole distribution circle radius of inner ring; The mounting hole of e inner ring distribute the round heart and raceway the center of circle between offset; L be inner ring mounting hole distribution circle coaxial with raceway time, the distance between worm screw and pivoting support inner ring mounting hole; I ~ VIII be inner ring mounting hole numbering mark.
Embodiment
See accompanying drawing, the revolution of a kind of adjustable tooth side clearance formula drives, it comprises spiral case 1, pivoting support 2, bearing 3, connecting end bearing cap 4, worm screw 5, set screw 6 and fixed end bearing cap 7, pivoting support and worm screw are arranged in spiral case, pivoting support comprises inner ring 22 and outer ring 21, raceway 23 is formed between inner ring and outer ring, inner ring is without gear ring, outer ring is for there being gear ring, outer ring and worm meshing, some mounting holes 221 are fixedly installed in the middle part of inner ring, the mounting hole site of inner ring is in circumferentially same and form the mounting hole distribution circle of inner ring, the mounting hole of the inner ring round heart 222 that distributes does not overlap with the center of circle 24 of raceway, the center of circle of raceway is the center of pivoting support, equally also be the center of circle, outer ring and the inner ring center of circle, inner ring is connected with spiral case by set screw, worm screw two ends are connected with two bearings respectively, connecting end bearing cap is connected with spiral case respectively by screw with fixed end bearing cap, connecting end bearing cap and fixed end bearing cap gland are outside two bearings.
The mounting hole of described inner ring distribute the round heart and raceway the center of circle between be set to eccentric structure, eccentric amount e is 0 ~ 2mm, and the mobility scale of the backlash of pivoting support and worm screw is-0.7 ~+0.7mm.
After mounting hole distribution circle and the raceway of the inner ring in revolution being driven on pivoting support coaxially change into and there is certain eccentric amount e, the mounting hole of inner ring and the ultimate range at pivoting support center are R+e, because L value is fixing, meshed center distance then in revolution driving between worm screw and pivoting support pivoting support becomes a+e, and the engaging tooth side clearance of pivoting support worm screw is also corresponding to change.
The mounting hole of inner ring and the minimum range at pivoting support center are R-e, because L value is fixing, meshed center distance then in revolution driving between worm screw and pivoting support pivoting support becomes a-e, the engaging tooth side clearance of pivoting support worm screw is also corresponding to change, so, after the mounting hole distribution circle of inner ring and pivoting support center exist eccentric amount e, the meshed center distance of pivoting support worm screw is become can be regulated in a-e to a+e scope from fixed value a.Thus the backlash respective change of the pivoting support worm screw that revolution is driven.
The processing method that the revolution of adjustable tooth side clearance formula drives is as follows:
(1) revolution of adjustable tooth side clearance formula drive in the manufacture of pivoting support and the main distinction of common pivoting support be that mounting hole on its inner ring distribute and justify and the realization of raceway offset, all the other are consistent with the processing method of common pivoting support.Eccentric mounting hole is at numerical control drilling machine colonel circle, and Jiao Yuan center and pivoting support raceway centres, then offset a variable toward X or Y-coordinate system, inputs normal hole machined program, mounting hole and positioning hole are machined.
(2) assembling according to the requirement of backlash, by rotating mounting hole and positioning hole corrected tooth side clearance, reaching designing requirement.
When turning round driving and assembling, mark need be numbered to the mounting hole of inner ring.When a hole
ibe in top, No. five holes
vwhen being positioned at below, now, revolution driving gear side clearance is maximum value; When No. five holes
vbe in top, a hole
iwhen being positioned at below, revolution driving gear side clearance is minimum value, is assembled by the rotation for mounting hole.When turning round driving gear side clearance and being too small, by by No. five holes
vrotate and raise, can backlash be amplified; When turning round driving gear side clearance and being excessive, by by a hole
irotate and lower, can backlash be reduced; Both the backlash adjustment that revolution is driven can have been completed.
The adjustable tooth side clearance formula revolution that the utility model proposes drives, make the engaging tooth side clearance of worm screw and pivoting support adjustable, increase the regulation range of worm and gear meshed center distance, ensure that between worm and gear flank, sideshake can adjust to optimum value, engagement is made to remain on the best, and then improve the working condition of revolution driving, improve the service behaviour and life-span of turning round and driving.
Claims (3)
1. an adjustable tooth side clearance formula revolution drives, it comprises spiral case, pivoting support, bearing, connecting end bearing cap, worm screw, set screw and fixed end bearing cap, it is characterized in that pivoting support and worm screw are arranged in spiral case, pivoting support comprises inner ring and outer ring, raceway is formed between inner ring and outer ring, inner ring is without gear ring, outer ring is for there being gear ring, outer ring and worm meshing, some mounting holes are fixedly installed in the middle part of inner ring, the mounting hole site of inner ring is in circumferentially same and form the mounting hole distribution circle of inner ring, the mounting hole of the inner ring round heart that distributes does not overlap with the center of circle of raceway, inner ring is connected with spiral case by set screw, worm screw two ends are connected with two bearings respectively, connecting end bearing cap is connected with spiral case respectively by screw with fixed end bearing cap, connecting end bearing cap and fixed end bearing cap gland are outside two bearings.
2. a kind of adjustable tooth side clearance formula revolution according to claim 1 drives, it is characterized in that the mounting hole of described inner ring distribute the round heart and raceway the center of circle between be set to eccentric structure, offset is 0 ~ 2mm, and the mobility scale of the backlash of pivoting support and worm screw is-0.7 ~+0.7mm.
3. a kind of adjustable tooth side clearance formula revolution according to claim 1 drives, and it is characterized in that the mounting hole of described inner ring at least arranges three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520510802.7U CN204784637U (en) | 2015-07-15 | 2015-07-15 | Adjustable backlash formula swing drives |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520510802.7U CN204784637U (en) | 2015-07-15 | 2015-07-15 | Adjustable backlash formula swing drives |
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| Publication Number | Publication Date |
|---|---|
| CN204784637U true CN204784637U (en) | 2015-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520510802.7U Active CN204784637U (en) | 2015-07-15 | 2015-07-15 | Adjustable backlash formula swing drives |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114033793A (en) * | 2021-10-14 | 2022-02-11 | 马鞍山经纬新能源传动设备有限公司 | Eccentric formula slewing bearing of raceway |
-
2015
- 2015-07-15 CN CN201520510802.7U patent/CN204784637U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114033793A (en) * | 2021-10-14 | 2022-02-11 | 马鞍山经纬新能源传动设备有限公司 | Eccentric formula slewing bearing of raceway |
| CN114033793B (en) * | 2021-10-14 | 2024-06-04 | 马鞍山经纬新能源传动设备有限公司 | Raceway eccentric slewing bearing |
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| GR01 | Patent grant |