CN209212946U - A kind of automatic anti-backlash worm wheel worm structure - Google Patents
A kind of automatic anti-backlash worm wheel worm structure Download PDFInfo
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- CN209212946U CN209212946U CN201821743631.2U CN201821743631U CN209212946U CN 209212946 U CN209212946 U CN 209212946U CN 201821743631 U CN201821743631 U CN 201821743631U CN 209212946 U CN209212946 U CN 209212946U
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Abstract
The utility model discloses a kind of automatic anti-backlash worm wheel worm structure, including worm gear and worm screw, the worm gear and worm screw cooperate；The worm screw includes worm shaft, worm set, spring, clamp nut and locking nut；The worm shaft is coupled with worm set by spline, and one end of the worm shaft and worm set is fixed by the clamp nut and locking nut.The processing is simple for the automatic anti-backlash worm screw of the utility model, it just can have the function that automatic anti-backlash without manual adjustment in assembly, it can be always ensured that the precision of slewing rotation, only once assembly can accomplish the service life that worm and gear is greatly prolonged to the non-maintaining of worm and gear.
Description
Technical field
The utility model belongs to field of machining, and in particular to a kind of automatic anti-backlash worm wheel worm structure.
Background technique
Worm Wheel System is a kind of common mechanically operated structure, and the helical teeth of worm screw is inserted into the helical teeth of worm gear, by
The rotation of worm screw drives worm gear rotation, due to having error in processing, also has abrasion in use process, thus worm and gear it
Between have gap certainly.Gap mainly has Changeable Lead worm screw between current elimination worm and gear, since Changeable Lead worm screw is processed
Difficulty is high, and the thickness for needing when assembling for the first time professional repeatedly to adjust worm screw gasket just can achieve the work of the gap that disappears
With it is also more next that the increasing precision in gap and gap can be generated again with the abrasion worm gear in use process and between worm screw
It is poorer, finally seriously affect the precision of workpieces processing.Therefore Changeable Lead worm screw is necessarily required to periodically be maintained by professional
The cooperation between its worm and wormwheel is adjusted, the efficiency of production is greatly reduced, also increases the cost used.
Utility model content
A kind of in order to overcome the deficiencies of the prior art, the utility model provides automatic anti-backlash worm wheel worm structure.
In order to achieve the above object, the utility model uses a kind of following technical scheme: automatic anti-backlash worm wheel worm structure,
It is characterized by comprising worm gear and worm screw, the worm gear and worm screw cooperate；The worm screw includes worm shaft, worm set, bullet
Spring, clamp nut and locking nut；The worm shaft is coupled with worm set by spline, one end of the worm shaft and worm set
It is fixed by the clamp nut and locking nut；The output end of the worm shaft is connect with servo motor, and the other end is known as adjusting
End is saved, is equipped with shoulder close to the adjustable side, the thin shaft end of the shoulder two sides is known as worm shaft taper end, thick shaft end is known as worm screw
Axis butt end, the worm set are covered in the outer surface of the shoulder；The clamp nut is mounted in the worm shaft taper end and presses
One end of the tight worm set；One end of the spring is fixedly connected with the shoulder, and the other end is fixed with the clamp nut
Connection；The locking nut is mounted in the worm shaft taper end and adjacent with the clamp nut.
Preferably, the worm set includes taper end worm set and butt end worm set, the taper end worm set and the snail
The connection of bar axis taper end, the butt end worm set are connect with the worm shaft butt end, are equipped with and the snail in the taper end worm set
The step and screw thread that bar axis taper end and clamp nut match.
The utility model has the advantages that compared with prior art, the utility model has the advantage that the automatic anti-backlash snail of the utility model
The processing is simple for bar, just can have the function that automatic anti-backlash without manual adjustment in assembly, can be always ensured that slewing revolves
The precision turned, only once assembly can accomplish the service life that worm and gear is greatly prolonged to the non-maintaining of worm and gear.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of worm screw；
Wherein, 1, worm gear, 2, worm shaft, 3, worm set, 4, spring, 5, clamp nut 6, locking nut, 201, worm shaft
Taper end, 202, butt end be worm shaft butt end, 203, worm shaft step, 301, taper end worm set, 302, butt end worm set.
Specific embodiment
In the following with reference to the drawings and specific embodiments, the utility model is furtherd elucidate, it should be understood that these embodiments are only used for
Illustrate the utility model rather than limitation the scope of the utility model, after having read the utility model, art technology
Personnel fall within the application range as defined in the appended claims to the modification of the various equivalent forms of the utility model.
As shown in Figure 1, a kind of automatic anti-backlash worm wheel worm structure, it is characterised in that: including worm gear 1 and worm screw, worm gear 1 with
Worm screw cooperates；Worm screw includes worm shaft 2, worm set 3, spring 4, clamp nut 5 and locking nut 6；Worm shaft 2 and worm screw
Set 3 is coupled by spline, and one end of worm shaft 2 and worm set 3 is fixed by clamp nut 5 and locking nut 6；Worm shaft 2
Output end is connect with servo motor, and the other end is known as adjustable side, is equipped with shoulder 203, the thin axis of 203 two sides of shoulder close to adjustable side
End is known as worm shaft taper end 201, thick shaft end is known as worm shaft butt end 202,3 sets of the worm set outer surfaces in shoulder 203；Compress spiral shell
Mother 5 is mounted on the one end in worm shaft taper end 201 and compressing worm set 3；One end of spring 4 is fixedly connected with shoulder, the other end
It is fixedly connected with clamp nut 5；Locking nut 6 is mounted in worm shaft taper end 201 and adjacent with clamp nut 5.In addition, worm screw
Set 3 includes taper end worm set 301 and butt end worm set 302, and taper end worm set 301 is connect with worm shaft taper end 201, butt end worm screw
Set 302 is connect with worm shaft butt end 202, is equipped in taper end worm set 301 and is matched with worm shaft taper end 201 and clamp nut 5
Step and screw thread.
The utility model embodiment also provides a kind of method for processing above-mentioned automatic anti-backlash worm wheel worm structure comprising such as
Lower step:
Step 1: machining worm axis and worm set outer surface: respectively according to drawing worm shaft 2 and the first turning of worm set 3 again
Grinding reprocesses the external splines of worm shaft 2 and the internal spline of worm set 3, in worm shaft 2 and worm set 3 to size
External splines work in-process guarantees that the assembly precision of the two, centering are accurate；
Step 2: machining worm wheel: according to processing drawing, the outer surface of machining worm wheel 1 is cooperated with the turning of lathe elder generation and worm screw
Worm gear 1 tooth, then reach the precision of drawing requirement with the parts of tooth of precision grinder grinding worm gear 1；
Step 3: machining worm tooth: worm shaft 2 and worm set 3 first being passed through spline location and installation to together, then use lock
Tight nut 6 compresses worm set 3, is integrally formed worm shaft 2 and worm set 3 firmly, with the tooth of lathe elder generation cutting worm, then
Reach the precision of drawing requirement with the parts of tooth of precision grinder grinding worm；
Step 4: label rigging position: not dismantling the worm screw processed first, couples in worm shaft 2 and 3 spline of worm set
Place make a call to a label, facilitate the later period dismantle after refitting according to label will not wrongly installed direction.
The utility model embodiment also provides a kind of gap method that disappears of automatic anti-backlash worm wheel worm structure comprising following step
It is rapid:
Step I: it assembly worm screw: is positioned according to the assembly direction set by spline and worm set 3 is mounted on worm screw
On axis 2,4 sets of spring in worm shaft taper end 201, clamp nut 5 be mounted on worm shaft taper end 201 withstand worm set 3 with
Then locking nut 6 is mounted on 5 side of clamp nut, tightens clamp nut 5 until completely worm shaft 2 and worm screw by spring 4
Set 3 compresses so that very close to each other between worm shaft 2 and worm set 3；
Step II: worm and wheel 1 assembly and test worm and gear: is assemblied in one according to the tooth form of worm tooth and worm gear
It rises, completes test worm gear 1 and worm screw after assembling and unclamp again locking nut 6 after working well and be moved to the worm shaft of worm shaft 2
Then the outermost of taper end 201 tightens locking nut 6 so that it will not influence the normal operation of worm and wormwheel, spring 4 at this time
High-tension worm set 3 can be strutted outward, worm set 3 struts rear worm screw and can completely eliminate the gap between worm and gear.
In use, automatic anti-backlash worm screw used in the utility model increases the structure of spring 4, worm screw with
Worm gear 1 unclamps after assembling pushes down the locking nut 6 of worm set 3, spring 4 can pop up outward worm set 3 at this time, at this time worm screw
Two flank of tooth of left and right two flank of tooth and worm gear or so are at a fully engaged, and the two can be firmly engaged on by the high-tension of spring 4
Together, then worm screw either rotates toward which direction when transmission can accomplish that two flank of tooth in left and right are all complete with worm gear
Full engagement, the gap eliminated between worm gear and worm screw truly.Even in constantly long-term use process, two
Abrasion is generated between person, spring 4 can also continue to outside bullet, guarantee automatic anti-backlash always, Maintenance free.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in
All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting
Related claim.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (2)
1. a kind of automatic anti-backlash worm wheel worm structure, it is characterised in that: including worm gear (1) and worm screw, the worm gear (1) and worm screw
It cooperates；
The worm screw includes worm shaft (2), worm set (3), spring (4), clamp nut (5) and locking nut (6)；
The worm shaft (2) is coupled with worm set (3) by spline, and one end of the worm shaft (2) and worm set (3) passes through institute
It states clamp nut (5) and locking nut (6) is fixed；
The output end of the worm shaft (2) is connect with servo motor, and the other end is known as adjustable side, is equipped with platform close to the adjustable side
Shoulder (203), the thin shaft end of shoulder (203) two sides is known as worm shaft taper end (201), thick shaft end is known as worm shaft butt end
(202), the worm set (3) covers in the outer surface of the shoulder (203)；
The clamp nut (5) is mounted on the one end on the worm shaft taper end (201) and compressing the worm set (3)；
One end of the spring (4) is fixedly connected with the shoulder, and the other end is fixedly connected with the clamp nut (5)；
The locking nut (6) is mounted on the worm shaft taper end (201) and adjacent with the clamp nut (5).
2. automatic anti-backlash worm wheel worm structure according to claim 1, it is characterised in that: the worm set (3) includes thin
End worm set (301) and butt end worm set (302), the taper end worm set (301) connect with the worm shaft taper end (201),
The butt end worm set (302) connect with the worm shaft butt end (202), be equipped in the taper end worm set (301) with it is described
The step and screw thread that worm shaft taper end (201) and clamp nut (5) match.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821743631.2U CN209212946U (en) | 2018-10-26 | 2018-10-26 | A kind of automatic anti-backlash worm wheel worm structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821743631.2U CN209212946U (en) | 2018-10-26 | 2018-10-26 | A kind of automatic anti-backlash worm wheel worm structure |
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| Publication Number | Publication Date |
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| CN209212946U true CN209212946U (en) | 2019-08-06 |
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| CN201821743631.2U Active CN209212946U (en) | 2018-10-26 | 2018-10-26 | A kind of automatic anti-backlash worm wheel worm structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109163084A (en) * | 2018-10-26 | 2019-01-08 | 南京康尼精密机械有限公司 | A kind of automatic anti-backlash worm wheel worm structure and its processing method and the gap method that disappears |
-
2018
- 2018-10-26 CN CN201821743631.2U patent/CN209212946U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109163084A (en) * | 2018-10-26 | 2019-01-08 | 南京康尼精密机械有限公司 | A kind of automatic anti-backlash worm wheel worm structure and its processing method and the gap method that disappears |
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