CN220687936U - Precision adjusting mechanism of worm gear speed reducer - Google Patents
Precision adjusting mechanism of worm gear speed reducer Download PDFInfo
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- CN220687936U CN220687936U CN202322286692.8U CN202322286692U CN220687936U CN 220687936 U CN220687936 U CN 220687936U CN 202322286692 U CN202322286692 U CN 202322286692U CN 220687936 U CN220687936 U CN 220687936U
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- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 45
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000009434 installation Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model provides an accuracy adjusting mechanism of a worm gear reducer, and belongs to the technical field of machinery. The precision adjusting structure of the worm gear speed reducer comprises a precision adjusting plate and an end cover which are sequentially sleeved on a positioning shaft part protruding outwards from the end face of a worm gear, wherein the precision adjusting plate is made into a circular plate shape and is provided with a connecting hole eccentrically arranged relative to the center line of the worm gear, the connecting hole, the positioning shaft part and the worm gear are coaxially arranged, a plurality of adjusting holes which are arrayed in an annular array with the center line of the connecting hole as the center are arranged on the precision adjusting plate, the end cover is sleeved with the end cover, the end cover is provided with a circular arc-shaped adjusting groove which penetrates through, the end cover is fixedly connected with a speed reducer body, the end cover is fixedly connected with the precision adjusting plate through a fastening bolt, and the fastening bolt penetrates through the circular arc-shaped adjusting groove and then is fixedly connected in the adjusting hole. The axial center position of the worm wheel can be adjusted by adjusting the angle position of the precision adjusting plate, so that the precision of the worm gear reducer is adjusted.
Description
Technical Field
The utility model belongs to the technical field of machinery, and relates to a speed reducer, in particular to an accuracy adjusting mechanism of a looseness-preventing worm gear speed reducer.
Background
The existing worm gear reducer is difficult to wear after long-time use, so that meshing teeth of a worm gear and a worm are affected, the meshing degree of the worm gear and the worm is affected, the transmission precision is affected, the worm gear or the worm is often replaced by the existing measures, the maintenance and operation costs are high, and the cost is high.
Disclosure of Invention
The utility model aims to solve the problems in the prior art and provides an accuracy adjusting mechanism of a worm gear reducer.
The aim of the utility model can be achieved by the following technical scheme: the utility model provides a precision adjustment mechanism of worm gear speed reducer, the speed reducer includes worm and worm wheel that meshing transmission is connected, its characterized in that, precision adjustment mechanism includes precision adjustment board and the end cover of cup jointing in proper order on the location axial region that is outwards protruding by the worm wheel terminal surface, the precision adjustment board is made to the plectane, and has the connecting hole that sets up for its central line is eccentric, connecting hole and location axial region and worm wheel coaxial arrangement, be provided with the adjustment hole that a plurality of uses the central line of connecting hole to be the annular array and arrange as the center on the precision adjustment board, the cover is equipped with the end cover on the precision adjustment board, the end cover sets up with the precision adjustment board coaxial, it has at least one convex adjustment groove that runs through, the convex adjustment groove uses the central line of end cover to be the circular arc central line, end cover and speed reducer casing body link firmly, and link firmly through fastening bolt between end cover and the precision adjustment board, fastening bolt links firmly in the convex adjustment hole after penetrating through the adjustment groove.
In the precision adjusting mechanism of the worm gear speed reducer, the circular arc center line of the circular arc adjusting groove and the precision adjusting plate are coaxially arranged.
In the precision adjusting mechanism of the worm gear speed reducer, each adjusting hole is in a non-mirror symmetry structure by using a connecting line between the center of the connecting hole and the center of the precision adjusting plate.
In the precision adjusting mechanism of the worm gear speed reducer, the number of the adjusting holes is 10-20.
In the precision adjusting mechanism of the worm gear reducer, the number of the adjusting holes is 12.
In the precision adjusting mechanism of the worm gear speed reducer, the center distance between the center of the annular array of each adjusting hole and the center of the precision adjusting plate is 0.05-0.15 mm.
In the precision adjusting mechanism of the worm gear speed reducer, the outer end face of the precision adjusting plate, which is opposite to the worm gear, is provided with the second-stage stepped shaft protruding part protruding outwards, the second-stage stepped shaft protruding part and the precision adjusting plate are coaxially arranged, the end cover is provided with the second-stage stepped positioning hole which is matched with the second-stage stepped shaft protruding part, and the end cover is fixedly connected with the speed reducer shell in a screwed mode through a threaded structure.
In the precision adjusting mechanism of the worm gear speed reducer, the circular arc-shaped adjusting groove is made into a second step groove, the bolt cap of the fastening bolt is positioned in the second step groove and abuts against the first step surface, the bolt pillar of the fastening bolt is inserted into the first step groove, and the groove width of the first step groove is larger than the aperture of the adjusting hole.
In the precision adjusting mechanism of the worm gear reducer, the end cover is provided with two circular arc-shaped adjusting grooves which are symmetrically arranged at the center of the end cover.
In the precision adjusting mechanism of the worm gear speed reducer, two end faces of the worm gear are respectively provided with a positioning shaft part, and the two positioning shaft parts are respectively sleeved with the precision adjusting plate and the end cover.
Compared with the prior art, the axial center position of the worm gear can be adjusted by adjusting the angle position of the precision adjusting plate, so that the worm gear transmission assembly can be ensured to be fully meshed by adjusting after being worn, and the service life of the speed reducer is prolonged.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present utility model.
Fig. 2 is an exploded view of an embodiment of the present utility model.
Fig. 3 is an installation schematic of an embodiment of the present utility model.
Fig. 4 is a schematic view of an outer end surface of a precision adjusting plate according to a first embodiment of the present utility model.
Fig. 5 is an exploded view of a second embodiment of the present utility model.
In the figure, 1, a speed reducer shell; 2. a worm; 3. a worm wheel; 301. positioning the shaft part; 4. a bearing; 5. a precision adjusting plate; 501. a connection hole; 502. an adjustment hole; 503. a second step-shaped shaft projection; 6. an end cap; 601. circular arc adjusting groove; 6011. a first step groove; 6012. a first step surface; 6013. a second step groove; 602. and the second-stage step-shaped positioning holes.
Detailed Description
The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.
Referring to fig. 1-4, the present embodiment is a precision adjusting mechanism of a worm gear and worm reducer, the reducer includes a worm 2 and a worm wheel 3 which are engaged and connected, the precision adjusting mechanism includes a precision adjusting plate 5 and an end cover 6 which are sequentially sleeved on a positioning shaft 301 protruding outwards from the end surface of the worm wheel 3, and the end cover 6 is screwed and fixedly connected with a reducer housing 1 through a thread structure, so that the installation and the fixation are facilitated. The end cover 6 and the precision adjusting plate 5 are both made into a circular plate shape, the end cover 6 and the precision adjusting plate 5 are coaxially arranged, the precision adjusting plate 5 is provided with a connecting hole 501 eccentrically arranged relative to the center line of the connecting hole 501, the positioning shaft 301 and the worm wheel 3 are coaxially arranged, the precision adjusting plate 5 is provided with a plurality of adjusting holes 502 which are annularly arrayed with the center line of the connecting hole 501 as the center, the end cover 6 is sleeved on the precision adjusting plate 5, the end cover 6 is provided with at least one through type circular arc-shaped adjusting groove 601, the circular arc-shaped adjusting groove 601 takes the center line of the end cover 6 as a circular arc center line, the end cover 6 is fixedly connected with the speed reducer shell 1, and the end cover 6 and the precision adjusting plate 5 are fixedly connected through fastening bolts, and the fastening bolts penetrate through the circular arc-shaped adjusting groove 601 and are fixedly connected in the adjusting holes 502.
Specifically, the outer end surface of the precision adjusting plate 5 facing away from the worm wheel 3 has a secondary stepped shaft protrusion 503 protruding outward, the secondary stepped shaft protrusion 503 is disposed coaxially with the precision adjusting plate 5, the connection hole 501 is located on the secondary stepped shaft protrusion 503, and the connection hole 510 is disposed eccentrically with respect to the secondary stepped shaft protrusion 503. The bearing 4 is provided between the secondary stepped shaft boss 503 and the positioning shaft portion 301. The end cap 6 has a secondary stepped positioning hole 602 fitted with the secondary stepped shaft boss 503, and the secondary stepped positioning hole 602 is provided coaxially with the secondary stepped shaft boss 503.
The precision adjusting plate 5 is provided with a plurality of adjusting holes 502 which are arrayed in an annular array with the central line of the connecting hole 501 as the center, the end cover 6 is sleeved on the peripheral wall of the precision adjusting plate 5, the end face of the end cover 6 is provided with a through arc-shaped adjusting groove 601, the arc-shaped adjusting groove 601 and the precision adjusting plate 5 are coaxially arranged, the end cover 6 is fixedly connected with the speed reducer shell 1, the end cover 6 is fixedly connected with the precision adjusting plate 5 through a fastening bolt, and the fastening bolt penetrates through the arc-shaped adjusting groove 601 and is fixedly connected in the adjusting hole 502; the arc length of the arc-shaped adjusting groove 601 is greater than the lengths of two adjacent adjusting holes 502, preferably the lengths of three sequentially adjacent adjusting holes 502.
The circular arc-shaped adjusting groove 601 is made into a two-stage step groove, the bolt cap of the fastening bolt is positioned in the second step groove 6013 and abuts against the first step surface 6012, the bolt pillar of the fastening bolt is inserted in the first step groove 6011, the size of the bolt pillar is smaller than the groove width of the first step groove 6011, namely, the groove width of the first step groove 6011 is larger than the aperture of the adjusting hole 502, and because the central line of the annular array of the adjusting hole 502 and the central line of the precision adjusting plate 5 are eccentrically arranged, after the precision adjusting plate 5 rotates, the position of the central line of the adjusting hole 502 relative to the width direction of the first step groove 6011 slightly changes, and the groove width of the first step groove 6011 is larger than the aperture of the adjusting hole 502, so that the fastening bolt can lock the end cover 6 and the precision adjusting plate 5 and also can ensure that the fastening bolt has enough adjusting space along with the position change of the adjusting hole 502.
Further, each adjusting hole 502 uses the connecting line between the center of the connecting hole 501 and the center of the precision adjusting plate 5 as a non-mirror symmetry structure, when the rotation angle positions of each adjusting hole 502 are different, the center distance between the center of the connecting hole 501 and the center of the precision adjusting plate 5 is also different, so that the adjusting and positioning positions are more various, and the adjusting adaptability is better.
Further, the number of the adjustment holes 502 is 10 to 20, and more preferably, the number of the adjustment holes is 12.
Further, the center-to-center distance between the center of the annular array of each adjustment hole 502 and the center of the precision adjustment plate 5 is 0.05 to 0.15mm, preferably 0.1mm, so that the adjustment range of the worm wheel 3 and the worm 2 twice the distance can be realized, and the precision and the running smoothness of the speed reducer can be ensured on the premise of ensuring the meshing coordination degree of the worm wheel 3 and the worm 2.
Further, the end cover 6 is provided with two circular arc-shaped adjusting grooves 601, the two circular arc-shaped adjusting grooves 601 take the central line of the end cover 6 as a circular arc central line, the two circular arc-shaped adjusting grooves 601 are symmetrically arranged in the center of the end cover 6, the end cover 6 is more firmly connected with the precision adjusting plate 5, and meanwhile, the adjusting range is larger.
The working principle of this embodiment is as follows: after the transmission structure between the worm 2 and the worm wheel 3 of the speed reducer is worn, the fastening bolt for fixing the end cover 6 and the precision adjusting plate 5 is screwed out, so that the precision adjusting plate 5 can be rotated, the worm wheel 3 connected in the connecting hole 501 of the precision adjusting plate 5 can be subjected to position adjustment along with the positioning shaft 301, namely, the axial lead of the worm wheel 3 rotates around the central line of the precision adjusting plate 5, and the meshing coordination degree of the worm wheel 3 and the worm 2 can be adjusted along with the central line interval change of the worm wheel and the precision adjusting plate 5, so that the stability of the transmission mechanism is ensured.
Embodiment two:
referring to fig. 5, each of the two end faces of the worm wheel 3 has a positioning shaft portion 301, each of the two positioning shaft portions 301 is sleeved with the above-mentioned precision adjusting plate 5 and the end cover 6, and both ends of the worm wheel 3 can be fixed and adjusted by the precision adjusting plate 5 and the end cover 6, so that the stability is better and the wear is less likely.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.
Claims (10)
1. The utility model provides a precision adjustment mechanism of worm gear speed reducer, the speed reducer includes worm (2) and worm wheel (3) that meshing transmission is connected, its characterized in that, precision adjustment mechanism includes precision adjustment board (5) and end cover (6) of cup jointing in proper order on by worm wheel (3) terminal surface outwards convex location shaft part (301), precision adjustment board (5) make for the plectane, and have connecting hole (501) eccentric arrangement for its centre line, connecting hole (501) are coaxial with location shaft part (301) and worm wheel (3), be provided with a plurality of on precision adjustment board (5) and use connecting hole (501)'s central line to be adjusting hole (502) that the annular array was arranged as the center, the cover is equipped with end cover (6) on precision adjustment board (5), end cover (6) and precision adjustment board (5) coaxial setting, it has at least one circular arc adjustment groove (601) that run through, circular arc adjustment groove (601) use the central line of end cover (6) to be circular arc central line, end cover (6) link firmly with speed reducer casing (1) and link firmly between end cover (6) and anchor bolt (502) after anchor bolt (601) link firmly.
2. The precision adjusting mechanism of the worm gear reducer according to claim 1, wherein the circular arc center line of the circular arc adjusting groove (601) and the precision adjusting plate (5) are coaxially arranged.
3. The precision adjusting mechanism of the worm gear speed reducer according to claim 2, wherein each adjusting hole (502) has a non-mirror symmetry structure with a line connecting the center of the hole (501) and the center of the precision adjusting plate (5).
4. The precision adjusting mechanism of the worm gear reducer according to claim 3, wherein the number of the adjusting holes (502) is 10 to 20.
5. The precision adjusting mechanism of the worm gear reducer according to claim 4, wherein the number of the adjusting holes (502) is 12.
6. The precision adjusting mechanism of a worm gear speed reducer according to claim 1 or 2 or 3 or 4 or 5, wherein the center-to-center distance between the center of the annular array of each adjusting hole (502) and the center of the precision adjusting plate (5) is 0.05-0.15 mm.
7. The precision adjusting mechanism of the worm gear speed reducer according to claim 1 or 2 or 3 or 4 or 5, wherein the outer end face of the precision adjusting plate (5) facing away from the worm wheel (3) is provided with a secondary step-shaped shaft convex part (503) protruding outwards, the secondary step-shaped shaft convex part (503) and the precision adjusting plate (5) are coaxially arranged, the end cover (6) is provided with a secondary step-shaped positioning hole (602) matched with the secondary step-shaped shaft convex part (503), and the end cover (6) is fixedly connected with the speed reducer shell (1) in a screwing mode through a threaded structure.
8. The precision adjusting mechanism of a worm gear reducer according to claim 1 or 2 or 3 or 4 or 5, wherein the circular arc-shaped adjusting groove (601) is made into a two-stage step groove, a bolt cap of the fastening bolt is located in the second step groove (6013) and abuts against the first step surface (6012), a bolt pillar of the fastening bolt is inserted into the first step groove (6011), and the groove width of the first step groove (6011) is larger than the aperture of the adjusting hole (502).
9. The precision adjusting mechanism of a worm gear reducer according to claim 1 or 2 or 3 or 4 or 5, wherein the end cover (6) has two circular arc-shaped adjusting grooves (601), and the two circular arc-shaped adjusting grooves (601) are symmetrically arranged with the center of the end cover (6).
10. The precision adjusting mechanism of a worm gear reducer according to claim 1 or 2 or 3 or 4 or 5, wherein each of both end faces of the worm wheel (3) has a positioning shaft portion (301), and each of the two positioning shaft portions (301) is provided with the precision adjusting plate (5) and the end cap (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322286692.8U CN220687936U (en) | 2023-08-23 | 2023-08-23 | Precision adjusting mechanism of worm gear speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322286692.8U CN220687936U (en) | 2023-08-23 | 2023-08-23 | Precision adjusting mechanism of worm gear speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220687936U true CN220687936U (en) | 2024-03-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322286692.8U Active CN220687936U (en) | 2023-08-23 | 2023-08-23 | Precision adjusting mechanism of worm gear speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220687936U (en) |
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2023
- 2023-08-23 CN CN202322286692.8U patent/CN220687936U/en active Active
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