CN203395138U - Adjustable center distance clearance-eliminating device for worm and gear pair - Google Patents
Adjustable center distance clearance-eliminating device for worm and gear pair Download PDFInfo
- Publication number
- CN203395138U CN203395138U CN201320504896.8U CN201320504896U CN203395138U CN 203395138 U CN203395138 U CN 203395138U CN 201320504896 U CN201320504896 U CN 201320504896U CN 203395138 U CN203395138 U CN 203395138U
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- worm
- eccentric bushing
- screw
- eccentric
- gear pair
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Abstract
The utility model relates to an adjustable center distance clearance-eliminating device for a worm and gear pair. The adjustable center distance clearance-eliminating device for the worm and gear pair comprises a worm gear, a worm and an eccentric sleeve, wherein the worm gear and the worm are meshed with each other; an eccentric shaft hole is formed in the axis of the eccentric sleeve; the worm penetrates into the eccentric shaft hole; the eccentric sleeve is arranged in a bracket; the bottoms of the bracket and the eccentric sleeve are respectively provided with an opening through which the worm gear penetrates. The adjustable center distance clearance-eliminating device for the worm and gear pair is designed for the eccentric sleeve of the worm and gear pair of an orientation leading-out device; the worm penetrates into the eccentric shaft hole, so that when gears of the worm and gear pair of equipment are abraded, the center distance of the worm and gear pair can be timely adjusted by adjusting the angle of the eccentric sleeve, phenomena of failure in self-locking and backlash of the worm and gear pair are avoided, the equipment can normally work, the high-accuracy orientation and horizontal output of the equipment are ensured, and the orientation leading-out device can be maintained on the site to the greatest extent.
Description
Technical field
The utility model relates to orientation lead-out device field, especially a kind of adjustable worm couple centre distance backlash eliminating equipment.
Background technique
Orientation lead-out device adopts worm couple to adjust to horizontal angle and azimythal angle attitude, due to laser distance meter being installed, causes centre-of gravity shift thereon, makes amount of unbalance for the self-locking requirement of worm couple, the centre distance of worm couple requires very high.In use, due to the wearing and tearing of worm and gear countershaft and tooth, the self-locking inefficacy and the backlash that produce worm couple, make horizontal angle and the output of azimythal angle attitude produce error, even because self-locking inefficacy laser distance meter cannot aim at and range finding.In Worm Wheel System process, hysterisis error is one of key factor affecting transmission accuracy, if do not manage to eliminate hysterisis error, depending raising machining accuracy alone will make processing cost increase substantially and cannot bear, especially in use cannot carry out repair and replacement to worm couple, particularly important, must adjust the maintenance realizing equipment to the centre distance of the worm couple of equipment.
Summary of the invention
The purpose of this utility model is to provide a kind of adjustable worm couple centre distance backlash eliminating equipment that can avoid worm couple to produce self-locking inefficacy and backlash.
The purpose of this utility model realizes by following technological means:
A worm couple centre distance backlash eliminating equipment, comprises intermeshing worm gear and worm screw, it is characterized in that: also comprise an eccentric bushing, eccentric pivot hole is made in the axle center of this eccentric bushing, and worm screw is installed in eccentric pivot hole; Eccentric bushing is arranged in a support, and the bottom of this support and eccentric bushing is all made one for the perforate through worm gear.
And a plug screw is installed in the rear end of the eccentric pivot hole of described eccentric bushing, installs one for holding out against the plug screw Cock screw of plug screw on eccentric bushing; A steel ball is installed in the inner side of plug screw, and the inner side of steel ball arranges adjustment pad, and the top, rear end of worm screw is pressed in to be adjusted on pad.
And a locknut is installed in the front end outside of the eccentric pivot hole of described eccentric bushing, this lock sheath is contained in the front end of worm screw, on the worm screw between eccentric bushing and locknut, is set with packing ring.
And described support is arranged on orientation lead-out device, worm gear is arranged on orientation lead-out device equipment vertical pivot and horizontal cross shaft.
And, an eccentric bushing Cock screw is radially installed on the sidewall of described support, the front end of this eccentric bushing Cock screw holds out against eccentric bushing.
Advantage of the present utility model and good effect are:
The utility model is the eccentric bushing design for the worm couple of orientation lead-out device, by worm screw is installed in eccentric pivot hole, make when equipment worm couple between cog produces wearing and tearing, by eccentric sleeves angle, thereby realize the centre distance of in good time adjusting worm couple, make worm couple not produce self-locking inefficacy and backlash, guaranteed the normal operation of equipment, the high-precision orientation of the equipment that guaranteed and horizontal output, realized the field maintenance to orientation lead-out device to greatest extent.
Accompanying drawing explanation
Fig. 1 is plan view of the present utility model;
Fig. 2 is that enlarged diagram (omission worm gear) is looked on a left side of Fig. 1;
Fig. 3 is the side-looking enlarged diagram of eccentric bushing.
Embodiment
Below in conjunction with accompanying drawing, describe embodiment of the present utility model in detail; It should be noted that, the present embodiment is narrative, is not determinate, can not limit protection domain of the present utility model with this.
A worm couple centre distance backlash eliminating equipment, comprises intermeshing worm gear 12 and worm screw 7, and worm gear is arranged on orientation lead-out device equipment vertical pivot and horizontal cross shaft.Innovative point of the present utility model is: this device also comprises an eccentric bushing 2 and a support 1, and eccentric bushing is arranged in support, and support is arranged on orientation lead-out device.The bottom of support and eccentric bushing is all made one for the perforate through worm gear.An eccentric bushing Cock screw 11 is radially installed on the sidewall of support, and the front end of this eccentric bushing Cock screw holds out against eccentric bushing.
Eccentric pivot hole is made in the axle center of eccentric bushing, and worm screw is installed in eccentric pivot hole, and the D in Fig. 3 is that eccentric bushing can make worm shaft center controlled variable.The concrete mounting structure of worm screw and eccentric bushing is: a plug screw 3 is installed in the rear end of the eccentric pivot hole of eccentric bushing, installs one for holding out against the plug screw Cock screw 5 of plug screw on eccentric bushing.A steel ball 4 is installed in the inner side of plug screw, and the inner side of steel ball arranges adjusts pad 6, and the top, rear end of worm screw is pressed in to be adjusted on pad.A locknut 10 is installed in the front end outside of the eccentric pivot hole of eccentric bushing, and this lock sheath is contained in the front end of worm screw, and the sidewall of locknut holds out against support, is set with packing ring 9 on the worm screw between eccentric bushing and locknut.On worm screw between worm screw and eccentric bushing madial wall shoulder, be also set with an inner washer 8.
Working procedure of the present utility model is:
Worm couple sideshake be worm shaft axial clearance by adjusting pad adjustment, by steel ball axially locating, by plug screw and locknut, fixed.Precision-fit between eccentric bushing and worm shaft, when in use due to the wearing and tearing of worm couple tooth, while producing the self-locking inefficacy of worm couple and hysterisis error, the gap that disappears adjustment.
First unclamp plug screw Cock screw and locknut, by eccentric sleeves, in support, rotate to an angle, make worm shaft central position with worm gear centre distance direction precise displacement, thereby realize worm and gear centre distance precise fine-adjustment, after eliminating the self-locking inefficacy and hysterisis error of worm couple, screw locknut, make eccentric bushing Cock screw hold out against eccentric bushing, the equipment that guarantees like this when orientation attitude and horizontal attitude are adjusted without getting loose, gapless, without stuck.Make worm couple not produce self-locking inefficacy and backlash, the high-precision orientation of the equipment that guaranteed and horizontal output, realize the field maintenance to orientation lead-out device.
Claims (5)
1. an adjustable worm couple centre distance backlash eliminating equipment, comprises intermeshing worm gear and worm screw, it is characterized in that: also comprise an eccentric bushing, eccentric pivot hole is made in the axle center of this eccentric bushing, and worm screw is installed in eccentric pivot hole; Eccentric bushing is arranged in a support, and the bottom of this support and eccentric bushing is all made one for the perforate through worm gear.
2. adjustable worm couple centre distance backlash eliminating equipment according to claim 1, is characterized in that: a plug screw is installed in the rear end of the eccentric pivot hole of described eccentric bushing, installs one for holding out against the plug screw Cock screw of plug screw on eccentric bushing; A steel ball is installed in the inner side of plug screw, and the inner side of steel ball arranges adjustment pad, and the top, rear end of worm screw is pressed in to be adjusted on pad.
3. adjustable worm couple centre distance backlash eliminating equipment according to claim 1, it is characterized in that: a locknut is installed in the front end outside of the eccentric pivot hole of described eccentric bushing, this lock sheath is contained in the front end of worm screw, on the worm screw between eccentric bushing and locknut, is set with packing ring.
4. adjustable worm couple centre distance backlash eliminating equipment according to claim 1, is characterized in that: described support is arranged on orientation lead-out device, and worm gear is arranged on orientation lead-out device equipment vertical pivot and horizontal cross shaft.
5. adjustable worm couple centre distance backlash eliminating equipment according to claim 1, is characterized in that: an eccentric bushing Cock screw is radially installed on the sidewall of described support, and the front end of this eccentric bushing Cock screw holds out against eccentric bushing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320504896.8U CN203395138U (en) | 2013-08-19 | 2013-08-19 | Adjustable center distance clearance-eliminating device for worm and gear pair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320504896.8U CN203395138U (en) | 2013-08-19 | 2013-08-19 | Adjustable center distance clearance-eliminating device for worm and gear pair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203395138U true CN203395138U (en) | 2014-01-15 |
Family
ID=49906673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320504896.8U Expired - Lifetime CN203395138U (en) | 2013-08-19 | 2013-08-19 | Adjustable center distance clearance-eliminating device for worm and gear pair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203395138U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108311920A (en) * | 2017-01-16 | 2018-07-24 | 浙江师范大学 | A kind of adjustable rotary Hydraulic Clamping Mechanism |
| CN108943148A (en) * | 2018-09-29 | 2018-12-07 | 天津长荣科技集团股份有限公司 | Adjustable die-cutting machine transmission device |
-
2013
- 2013-08-19 CN CN201320504896.8U patent/CN203395138U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108311920A (en) * | 2017-01-16 | 2018-07-24 | 浙江师范大学 | A kind of adjustable rotary Hydraulic Clamping Mechanism |
| CN108311920B (en) * | 2017-01-16 | 2023-07-18 | 浙江师范大学 | Adjustable rotary hydraulic clamping mechanism |
| CN108943148A (en) * | 2018-09-29 | 2018-12-07 | 天津长荣科技集团股份有限公司 | Adjustable die-cutting machine transmission device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140115 |
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| CX01 | Expiry of patent term |