CN116928323A - Precision-adjustable speed reducer - Google Patents
Precision-adjustable speed reducer Download PDFInfo
- Publication number
- CN116928323A CN116928323A CN202311070169.XA CN202311070169A CN116928323A CN 116928323 A CN116928323 A CN 116928323A CN 202311070169 A CN202311070169 A CN 202311070169A CN 116928323 A CN116928323 A CN 116928323A
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- precision
- speed reducer
- adjusting plate
- end cover
- worm wheel
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- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 56
- 230000005540 biological transmission Effects 0.000 claims abstract description 9
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000005299 abrasion Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation 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
- 230000035515 penetration Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/039—Gearboxes for accommodating worm gears
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention provides an accuracy-adjustable speed reducer, and belongs to the technical field of machinery. The problem that an existing speed reducer cannot be adjusted after being worn is solved. The precision adjustable speed reducer comprises a speed reducer shell, wherein a worm and a worm wheel which are connected in a meshed transmission manner are arranged in the speed reducer shell, the worm wheel is provided with a positioning shaft part, a precision adjusting plate which is made into a circular plate shape is arranged on the positioning shaft part through a bearing sleeve, the precision adjusting plate is provided with a connecting hole, the connecting hole is coaxially arranged with the positioning shaft part and the worm wheel, the center line of the connecting hole is eccentrically arranged relative to the axis line of the precision adjusting plate, a plurality of adjusting holes are formed in the precision adjusting plate, an end cover is sleeved on the precision adjusting plate, the end cover is provided with a circular arc-shaped adjusting groove which penetrates through, and the circular arc-shaped adjusting groove and the precision adjusting plate are coaxially arranged, and are fixedly connected with the speed reducer shell. The axial center position of the worm wheel can be adjusted by adjusting the angle position of the precision adjusting plate, so that the meshing precision of the speed reducer is adjusted.
Description
Technical Field
The invention belongs to the technical field of machinery, and relates to a speed reducer, in particular to a speed reducer with adjustable anti-loosening precision.
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 invention aims to solve the problems in the prior art and provides an accuracy-adjustable speed reducer.
The aim of the invention can be achieved by the following technical scheme: the utility model provides an adjustable speed reducer of precision, includes the speed reducer casing, the worm and the worm wheel that the meshing transmission is connected are built-in to the speed reducer casing, its characterized in that, the terminal surface of worm wheel has the outwards convex location axle part, be equipped with the precision adjustment board of making into the circular plate shape through the bearing housing on the location axle part, the precision adjustment board has the connecting hole, connecting hole and location axle part and worm wheel coaxial setting, and the central line of connecting hole is the eccentric setting for the axial lead of precision adjustment board, be provided with a plurality of and take the central line of connecting hole to be the adjustment hole that annular array was arranged as the center on the precision adjustment board, the cover is equipped with the end cover on the precision adjustment board, the end cover has the convex adjustment groove of penetration type, convex adjustment groove and the coaxial setting of precision adjustment board, the end cover links firmly with the speed reducer casing, and links firmly through fastening bolt between end cover and the precision adjustment board, fastening bolt links firmly in the convex adjustment inslot after penetrating through the convex adjustment groove.
In the above-mentioned precision adjustable speed reducer, each of the adjustment holes has a non-mirror symmetrical structure with a connecting line between a center of the connection hole and a center of the precision adjustment plate.
In the above-mentioned precision adjustable speed reducer, the number of the adjustment holes is 10 to 20.
In the precision adjustable 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 above precision adjustable speed reducer, the end cover has two circular arc-shaped adjustment grooves, the two circular arc-shaped adjustment grooves use the center line of the end cover as a circular arc center line, and the two circular arc-shaped adjustment grooves are symmetrically arranged with the center of the end cover.
In the above-mentioned precision adjustable speed reducer, the outer terminal surface that the precision adjustment board was facing away from the worm wheel has the protruding second grade step protruding portion of step shaft outward, the protruding coaxial setting with the precision adjustment board of first grade step protruding portion of step shaft, the protruding coaxial setting of connecting hole of second grade step protruding portion of step shaft, the end cover has the second grade step locating hole with the protruding looks adaptation of above-mentioned second grade step protruding portion of step shaft, the aperture and the protruding external diameter of first grade step protruding external diameter of first grade locating hole that the second grade step protruding portion of step shaft is connected of second grade step protruding portion of step shaft is the same, the aperture of the protruding external diameter of second grade locating hole that the second grade step locating hole is connected of second grade step protruding shaft is greater than, the end cover passes through the screw structure and connects soon fixedly with the speed reducer casing.
In the precision adjustable 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 in the first step groove, and the size of the bolt pillar is smaller than the groove width of the first step groove.
In the above precision adjustable speed reducer, the groove width of the first step groove is larger than the aperture of the adjustment hole.
In the above precision adjustable speed reducer, the two side end surfaces of the worm wheel are respectively provided with an outwardly protruding positioning shaft part, the two positioning shaft parts are respectively provided with a precision adjusting plate through bearing sleeves, and the two precision adjusting plates are respectively connected with the two ends of the speed reducer shell through an end cover.
In the above-mentioned precision adjustable speed reducer, the two precision adjusting plates are arranged in mirror symmetry with the worm wheel as the center, and the two end covers are arranged in non-mirror symmetry with the worm wheel as the center.
Compared with the prior art, the invention has the following advantages:
1. the speed reducer can adjust the axial center position of the worm wheel by adjusting the angle position of the precision adjusting plate, and because the annular array center of each adjusting hole on the precision adjusting plate and the center of the precision adjusting plate are of eccentric structures, namely the center line of the connecting hole and the center line of the precision adjusting plate are arranged in a staggered mode, the axial lead of the worm wheel can be adjusted by 360 degrees around the center line of the precision adjusting plate at intervals between the two, the worm wheel and worm transmission assembly can be guaranteed to be fully meshed through adjustment after abrasion, namely the meshing precision is guaranteed, and the service life of the speed reducer is prolonged.
2. The speed reducer is provided with a group of adjusting structures formed by the precision adjusting plates and the end covers at two ends of the worm gear, the structural stability is better, the abrasion of the worm gear transmission assembly is relatively smaller, and the service life is longer.
3. The arc-shaped adjusting grooves on the two end covers of the speed reducer are of non-mirror symmetry structures, and the adjusting range is wider.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a perspective view of the internal structure of the present invention.
Fig. 3 is an exploded view of the internal structure of the present invention.
FIG. 4 is a schematic diagram of a structure of a precision adjusting plate according to the present invention.
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 invention and the technical solutions of the present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.
Referring to fig. 1-4, the present embodiment is an adjustable precision speed reducer, including a speed reducer housing 1, a worm 2 and a worm wheel 3 that are in meshed transmission connection are built in the speed reducer housing 1, two side end faces of the worm wheel 3 are respectively provided with an outwardly protruding positioning shaft portion 301, two positioning shaft portions 301 are respectively sleeved with an accuracy adjusting plate 5 through a bearing 4, two accuracy adjusting plates 5 are respectively connected to two ends of the speed reducer housing 1 through an end cover 6, the end cover 6 and the accuracy adjusting plates 5 are both made into a circular plate shape, the end cover 6 and the accuracy adjusting plates 5 are coaxially arranged, and the end cover 6 is used for limiting the accuracy adjusting plates 5 and the worm wheel 3.
Specifically, the precision adjusting plate 5 is made into a disc shape, and has a connecting hole 501 eccentrically disposed in the middle, and the connecting hole 501 is disposed coaxially with the positioning shaft 301 and the worm wheel 3, that is, the center line of the connecting hole 501 is eccentrically disposed with respect to the axis line of the precision adjusting plate 5. The outer end surface of the precision adjusting plate 5 facing away from the worm wheel 3 is provided with a secondary stepped shaft convex part 503 protruding outwards, the secondary stepped shaft convex part 503 and the precision adjusting plate 5 are coaxially arranged, the connecting hole 501 is positioned on the secondary stepped shaft convex part 503, and the connecting hole 510 is eccentrically arranged relative to the secondary stepped shaft convex part 503. The bearing 4 is provided between the secondary stepped shaft boss 503 and the positioning shaft portion 301. The end cover 6 is provided with a second-stage stepped positioning hole 602 matched with the second-stage stepped shaft convex part 503, the second-stage stepped positioning hole 602 and the second-stage stepped shaft convex part 503 are coaxially arranged, and the end cover 6 is fixedly connected with the speed reducer shell 1 in a screwed mode through a threaded structure, so that the installation and the fixation are facilitated.
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 adjacent adjusting holes 502 which are adjacent in sequence.
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.
Furthermore, the two precision adjusting plates 5 are arranged in a mirror symmetry manner with the worm wheel 3 as the center, the two end covers 6 are arranged in a non-mirror symmetry manner with the worm wheel 3 as the center, and the two end covers 6 are fixed at different positions, so that the adjusting range can be further improved.
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 part 301, namely, the axis of the worm wheel 3 rotates around the center line of the precision adjusting plate 5, the meshing coordination degree of the worm wheel 3 and the worm 2 can be adjusted along with the change of the center line distance between the axis and the precision adjusting plate 5, the stability of the transmission mechanism is ensured, and after the adjustment is finished, the fastening bolt is locked with the casing again.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. 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 invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (10)
1. An accuracy-adjustable speed reducer comprises a speed reducer shell (1), wherein a worm (2) and a worm wheel (3) which are in meshed transmission connection are arranged in the speed reducer shell (1), it is characterized in that the end face of the worm wheel (3) is provided with a positioning shaft part (301) protruding outwards, the positioning shaft part (301) is sleeved with a precision adjusting plate (5) which is made into a circular plate shape through a bearing (4), the precision adjusting plate (5) is provided with a connecting hole (501), the connecting hole (501) is coaxially arranged with the positioning shaft part (301) and the worm wheel (3), and the center line of the connecting hole (501) is eccentrically arranged relative to the axis line of the precision adjusting plate (5), a plurality of adjusting holes (502) which are arranged in an annular array with the central line of the connecting hole (501) as the center are arranged on the precision adjusting plate (5), an end cover (6) is sleeved on the precision adjusting plate (5), the end cover (6) is provided with a penetrating circular arc-shaped adjusting groove (601), the circular 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, the fastening bolt penetrates through the circular arc-shaped adjusting groove (601) and is fixedly connected in the adjusting hole (502).
2. The precision adjustable speed reducer according to claim 1, wherein each of the adjustment holes (502) has a non-mirror-symmetrical structure with a line connecting a center of the hole (501) and a center of the precision adjustment plate (5).
3. The precision adjustable speed reducer according to claim 2, wherein the number of the adjustment holes (502) is 10 to 20.
4. The precision adjustable speed reducer according to claim 1, wherein the center-to-center distance between the center of the annular array of each of the adjustment holes (502) and the precision adjustment plate (5) is 0.05-0.15 mm.
5. The precision adjustable speed reducer according to claim 1, 2, 3 or 4, wherein the outer end surface 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.
6. The precision adjustable speed reducer according to claim 5, wherein the circular arc-shaped adjusting groove (601) is made into a two-stage step groove, the bolt cap of the fastening bolt is located in the second step groove (6013) and abuts against the first step surface (6012), the bolt pillar of the fastening bolt is inserted into the first step groove (6011), and the size of the bolt pillar is smaller than the groove width of the first step groove (6011).
7. The precision adjustable speed reducer according to claim 6, wherein the groove width of the first step groove (6011) is larger than the aperture of the adjustment hole (502).
8. The precision adjustable speed reducer according to claim 7, wherein the end cover (6) has two circular arc-shaped adjustment grooves (601), the two circular arc-shaped adjustment grooves (601) are arranged with the center line of the end cover (6) as a circular arc center line, and the two circular arc-shaped adjustment grooves (601) are symmetrically arranged with the center of the end cover (6).
9. The precision adjustable speed reducer according to claim 5, wherein the two side end surfaces of the worm wheel (3) are respectively provided with an outwardly protruding positioning shaft part (301), the two positioning shaft parts (301) are respectively sleeved with a precision adjusting plate (5) through bearings (4), and the two precision adjusting plates (5) are respectively connected with the two ends of the speed reducer shell (1) through an end cover (6).
10. The precision adjustable speed reducer according to claim 9, wherein two of the precision adjusting plates (5) are arranged in mirror symmetry with respect to the worm wheel (3), and two of the end caps (6) are arranged in non-mirror symmetry with respect to the worm wheel (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311070169.XA CN116928323A (en) | 2023-08-23 | 2023-08-23 | Precision-adjustable speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311070169.XA CN116928323A (en) | 2023-08-23 | 2023-08-23 | Precision-adjustable speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116928323A true CN116928323A (en) | 2023-10-24 |
Family
ID=88384534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311070169.XA Pending CN116928323A (en) | 2023-08-23 | 2023-08-23 | Precision-adjustable speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116928323A (en) |
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2023
- 2023-08-23 CN CN202311070169.XA patent/CN116928323A/en active Pending
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