CN216975679U - Speed reducer with adjustable return difference - Google Patents
Speed reducer with adjustable return difference Download PDFInfo
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- CN216975679U CN216975679U CN202123337412.9U CN202123337412U CN216975679U CN 216975679 U CN216975679 U CN 216975679U CN 202123337412 U CN202123337412 U CN 202123337412U CN 216975679 U CN216975679 U CN 216975679U
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- worm
- mounting groove
- return difference
- reducer
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Abstract
The utility model relates to a speed reducer capable of adjusting return difference, which belongs to the technical field of speed reducers and comprises a worm and gear sleeve, a worm gear rod and a return difference adjusting assembly, wherein the worm and gear sleeve is internally and respectively communicated with a first mounting groove and a horizontal second mounting groove; the worm is rotatably arranged in the second mounting groove; the return difference adjusting assembly is arranged on the worm gear rod and adjusts the backlash of the worm gear and the worm. Adjust worm and worm wheel through return difference adjusting part, avoid the problem that too big or undersize caused the influence to the production progress to appear in the backlash.
Description
Technical Field
The utility model belongs to the technical field of speed reducers, and particularly relates to a speed reducer with adjustable return difference.
Background
In the prior art, most of closed reducers adopting worm and gear transmission on the world can not adjust the center distance between the worm and the gear, and when the clearance between the worm and the gear is too large, the conditions of large transmission return clearance and poor transmission precision are easily caused. When the clearance between the worm wheel and the worm is too small, the situation of blocking between the worm wheel and the worm is easily caused.
SUMMERY OF THE UTILITY MODEL
The utility model provides a reducer with adjustable return difference, aiming at solving the problem that the backlash between a worm and a worm wheel cannot be adjusted.
The utility model is realized by the following technical scheme:
a reducer with adjustable return difference comprises a worm and gear sleeve, a worm wheel, a worm gear rod and a return difference adjusting assembly,
the worm and gear sleeve is internally and respectively communicated with a first mounting groove and a horizontal second mounting groove,
the worm wheel is rotatably arranged in the first mounting groove, the worm wheel rod penetrates through the worm wheel and is overlapped with the axial lead of the worm wheel, and the worm wheel rod penetrates through the first mounting groove;
the worm is rotatably arranged in the second mounting groove;
the return difference adjusting assembly is arranged on the worm gear rod and adjusts the backlash of the worm gear and the worm.
Adjust worm and worm wheel through return difference adjusting part, avoid the problem that too big or undersize caused the influence to the production progress to appear in the backlash.
The utility model is further improved, and the return difference adjusting assembly comprises a speed reducer cover, an installation ring plate and a rotating ring which are all round; the two speed reducer covers are arranged on the worm gear sleeve in a rotating mode, and the speed reducer covers are arranged on the worm gear and seal the first installation groove; the mounting ring plate is arranged on the inner side of the speed reducer cover, the excircle of the mounting ring plate is concentric with the circle center of the speed reducer cover, and the inner circle of the mounting ring plate is an eccentric circle of the excircle; the rotating ring is arranged on the worm wheel and is rotatably arranged on the inner side of the mounting ring plate. The speed reducer cover is rotated, and the rotating ring is pushed by the eccentric circle on the inner side of the mounting ring plate in the rotating process around the axis of the circle on the outer side of the mounting ring plate, so that the distance between the worm wheel and the worm is adjusted.
The utility model further improves the structure that a framework oil seal sleeved on the worm gear rod is arranged in the mounting ring plate. The sealing performance in the worm and gear sleeve is ensured through the framework oil seal, and the leakage of lubricating materials such as lubricating oil is prevented.
The utility model is further improved by that the rotating ring is connected with the worm gear through the worm gear bearing. The position relation between the worm wheel and the worm gear rod is relatively fixed through the worm wheel bearing.
The utility model is further improved, the outer wall of the mounting ring plate is matched with the inner wall of the first mounting groove; the periphery of the mounting ring plate is surrounded with a plurality of fixing holes which are uniformly distributed on the speed reducer cover, and the worm gear sleeve is provided with a threaded hole matched with the fixing holes. After the adjustment of the tooth clearance between the worm wheel and the worm is finished, the bolt penetrates through the fixing hole and is in threaded connection with the threaded hole, so that the position of the speed reducer cover is fixed, and the relative fixation of the tooth clearance between the worm wheel and the worm is finished.
In a further improvement of the present invention, the worm is rotatably disposed in the second mounting groove through a worm bearing; and the worm gear and worm sleeve is provided with a worm end cover which is sleeved on the worm and seals the second mounting groove. And sealing two ends of the second mounting groove through the worm end cover.
The utility model is further improved, wherein a belt wheel connected with the worm is arranged on the outer side of one worm end cover; a magnetic steel adapter is arranged on the worm outside the other worm end cover. So as to install a magnetic encoder for measuring the rotation angle.
According to the technical scheme, the utility model has the beneficial effects that: 1. adjust worm and worm wheel through return difference adjusting part, avoid the problem that too big or undersize caused the influence to the production progress to appear in the backlash. 2. The worm gear is sheathe in and is seted up the first mounting groove and the second mounting groove of intercommunication each other, provides installation space for the adjustment between worm wheel and the worm.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description will be briefly introduced, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic side view of an embodiment of the present invention.
Fig. 3 is a schematic top view of an embodiment of the present invention.
FIG. 4 is a schematic view A-A of an embodiment of the present invention.
FIG. 5 is a schematic view of the embodiment of the present invention B-B.
FIG. 6 is an exploded view of the mounting ring plate and the rotating ring according to the embodiment of the present invention.
In the drawings: 1. the device comprises a worm and gear sleeve, 2, a worm rod, 3, a framework oil seal, 4, a speed reducer cover, 5, a belt wheel, 6, a worm end cover, 7, a magnetic steel adaptor, 8, a worm, 9, a worm bearing, 10, a worm bearing, 11, a worm wheel, 12, an installation ring plate, 13 and a rotating ring.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the present embodiment, and it is apparent that the embodiments described below are only a part of embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the scope of protection of this patent.
As shown in the attached drawings, the speed reducer with the adjustable return difference comprises a worm and gear sleeve 1, a worm 8, a worm wheel 11, a worm gear rod 2 and a return difference adjusting assembly, wherein a vertical first mounting groove and a horizontal second mounting groove penetrate through the worm and gear sleeve 1 respectively, and the first mounting groove is arranged on one side of the second mounting groove and communicated with the second mounting groove. The first mounting groove and the second mounting groove of intercommunication can realize the contact between worm wheel 11 and the worm 8 to adjust the backlash of worm wheel 11 and worm 8 through the return difference adjusting part.
The worm wheel 11 is rotatably arranged in the first mounting groove, the worm wheel rod 2 penetrates through the worm wheel 11 and is overlapped with the axis line of the worm wheel 11, and the worm wheel rod 2 penetrates through the first mounting groove. So that the worm gear 2 and the worm wheel 11 rotate around the same axis after the worm gear 2 is driven.
The worm 8 is rotatably arranged in the second mounting groove. The worm wheel 11 and the worm 8 are respectively provided with installation spaces in the worm and gear sleeve 1.
The return difference adjusting assembly is arranged on the worm and gear sleeve 1 and used for adjusting the tooth clearance between the worm wheel 11 and the worm 8, namely the pitch of the teeth.
The return difference adjusting assembly comprises a speed reducer cover 4, a mounting ring plate 12 and a rotating ring 13 which are all circular. Two speed reducer covers 4 are arranged and rotatably arranged on the worm and gear sleeve 1, and the speed reducer covers 4 are sleeved on the worm and gear rod 2 and seal the first mounting groove. The mounting ring plate 12 is arranged on the inner side of the speed reducer cover 4, the excircle of the mounting ring plate 12 is concentric with the circle center of the speed reducer cover 4, the inner circle of the mounting ring plate 12 is an eccentric circle of the excircle, namely, the inner circle and the excircle of the mounting ring plate 12 are both positive circles, but the inner circle and the excircle are not concentric. And a framework oil seal 3 sleeved on the worm gear rod 2 is arranged in the mounting annular plate 12. The rotating ring 13 is mounted on the worm wheel 11 and is rotatably arranged inside the mounting ring plate 12. The rotating ring 13 is connected with the worm gear 2 through a worm gear bearing 9. The reducer cover 4 is rotated to push the rotating ring 13 through the eccentric circle on the inner side of the mounting ring 12 in the process of rotating around the axial lead of the circle on the outer side of the mounting ring, so as to adjust the tooth clearance distance between the worm wheel 11 and the worm 8. At this time, since the worm 2 moves relative to the speed reducer cover 4 along with the worm wheel 11, the through hole formed in the speed reducer cover 4 to allow the worm 2 to pass through is directly larger than the diameter of the worm 2.
The outer wall of the mounting ring plate 12 is matched with the inner wall of the first mounting groove; a plurality of fixing holes are encircled around the periphery of the mounting ring plate 12 and are uniformly distributed on the speed reducer cover 4, and threaded holes matched with the fixing holes are formed in the worm and gear sleeve 1. After the adjustment of the backlash between the worm wheel 11 and the worm 8 is completed, the bolt penetrates through the fixing hole and forms threaded connection with the threaded hole so as to fix the position of the speed reducer cover 4, and thus the relative fixation of the backlash between the worm wheel 11 and the worm 8 is completed.
The worm 8 is rotatably arranged in the second mounting groove through a worm bearing 10. The worm and gear sleeve 1 is provided with a worm end cover 6 which is sleeved on the worm 8 and seals the second mounting groove, and the outer side of one worm end cover 6 is provided with a belt wheel 5 connected with the worm 8. A magnetic steel adapter 7 is arranged on the worm 8 at the outer side of the other worm end cover 6. So as to install a magnetic encoder for measuring the rotation angle.
In summary, the usage principle of the device is as follows: rotating the speed reducer cover 4, wherein the inner side of the mounting ring plate 12 pushes the rotating ring 13 to adjust the tooth clearance between the worm wheel 11 and the worm 8; the speed reducer cover 4 after the adjustment is completed passes through the fixing hole through the bolt and forms threaded connection with the threaded hole so as to fix the speed reducer cover 4 and avoid adjusting the backlash between the worm wheel 11 and the worm 8 again.
In summary, the usage principle of the device is as follows: the reducer cover 4 is rotated, and the inner side of the installation ring plate 12 pushes the rotating ring 13 to adjust the backlash of the worm wheel and the worm 8; the speed reducer cover 4 after the adjustment is completed passes through the fixing hole through the bolt and forms threaded connection with the threaded hole so as to fix the speed reducer cover 4 and avoid adjusting the backlash between the worm wheel and the worm 8 again.
According to the reducer with the adjustable return difference, the return difference adjusting assembly is used for adjusting the worm and the worm wheel, so that the problem that the production progress is influenced due to too large or too small tooth gaps is solved. The worm gear is sheathe in and is offered the first mounting groove and the second mounting groove of intercommunication each other, provides installation space for the adjustment between worm wheel and the worm.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The terms "upper", "lower", "outside", "inside" and the like in the description and claims of the present invention and the above drawings are used for distinguishing relative relationships in position, if any, and are not necessarily given qualitatively. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the utility model described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. A reducer with adjustable return difference is characterized by comprising a worm and gear sleeve (1), a worm (8), a worm gear (11), a worm gear rod (2) and a return difference adjusting assembly,
a first mounting groove and a horizontal second mounting groove which are respectively communicated with each other are arranged in the worm and gear sleeve (1),
the worm wheel (11) is rotatably arranged in the first mounting groove, the worm wheel rod (2) penetrates through the worm wheel (11) and is overlapped with the axis of the worm wheel (11), and the worm wheel rod (2) penetrates through the first mounting groove;
the worm (8) is rotatably arranged in the second mounting groove;
the return difference adjusting assembly is arranged on the worm wheel rod (2) and adjusts the backlash of the worm wheel (11) and the worm (8).
2. A reducer with adjustable backlash according to claim 1, wherein the backlash adjusting assembly comprises a reducer cover (4), a mounting ring plate (12) and a rotating ring (13), all of which are circular; the two speed reducing machine covers (4) are rotatably arranged on the worm and gear sleeve (1), and the speed reducing machine cover (4) is sleeved on the worm rod (2) and seals the first mounting groove; the mounting ring plate (12) is arranged on the inner side of the speed reducer cover (4), the excircle of the mounting ring plate (12) is concentric with the circle center of the speed reducer cover (4), and the inner circle of the mounting ring plate (12) is an eccentric circle of the excircle; the rotating ring (13) is arranged on the worm wheel (11) and is rotatably arranged on the inner side of the mounting ring plate (12).
3. A reducer with adjustable return difference according to claim 2, characterized in that the inside of the mounting ring plate (12) is provided with a skeleton oil seal (3) sleeved on the worm gear (2).
4. A reducer with adjustable backlash according to claim 2, characterized in that the rotating ring (13) is connected to the worm (2) by means of a worm bearing (9).
5. A reducer with adjustable backlash according to claim 2, wherein the outer wall of the mounting ring plate (12) is fitted with the inner wall of the first mounting groove; the periphery of the mounting ring plate (12) is surrounded with a plurality of fixing holes which are uniformly distributed on the speed reducer cover (4), and the worm and gear sleeve (1) is provided with threaded holes matched with the fixing holes.
6. A reducer with adjustable return difference according to claim 1, characterized in that the worm (8) is rotatably arranged in the second mounting groove through a worm bearing (10); and a worm end cover (6) which is sleeved on the worm (8) and seals the second mounting groove is arranged on the worm gear sleeve (1).
7. A reducer with adjustable return difference according to claim 6, characterized in that a belt wheel (5) connected with a worm (8) is arranged outside one worm end cover (6); a magnetic steel adapter (7) is arranged on the worm (8) on the outer side of the other worm end cover (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123337412.9U CN216975679U (en) | 2021-12-27 | 2021-12-27 | Speed reducer with adjustable return difference |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123337412.9U CN216975679U (en) | 2021-12-27 | 2021-12-27 | Speed reducer with adjustable return difference |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216975679U true CN216975679U (en) | 2022-07-15 |
Family
ID=82347060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123337412.9U Active CN216975679U (en) | 2021-12-27 | 2021-12-27 | Speed reducer with adjustable return difference |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216975679U (en) |
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2021
- 2021-12-27 CN CN202123337412.9U patent/CN216975679U/en active Active
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