CN214036717U

CN214036717U - Gear transmission clearance eliminating device

Info

Publication number: CN214036717U
Application number: CN202023035956.5U
Authority: CN
Inventors: 王晓东; 金万兵; 刘晋平
Original assignee: Shanghai Moons Electric Co Ltd
Current assignee: Shanghai Moons Electric Co Ltd
Priority date: 2020-12-17
Filing date: 2020-12-17
Publication date: 2021-08-24
Anticipated expiration: 2030-12-17

Abstract

The utility model relates to a gear drive clearance device that disappears, including driven gear, transition gear A, transition gear B, positioning pin axle, bearing, base and driving gear, driven gear, positioning pin axle install on the base in proper order, transition gear B and transition gear A pack into the bearing back in proper order, the dress is on positioning pin axle, transition gear A and transition gear B's tooth portion dislocation set. Compared with the prior art, the utility model has the advantages of it is following: the gear transmission fit clearance can be simply and effectively reduced, and the gear transmission precision is improved.

Description

Gear transmission clearance eliminating device

Technical Field

The utility model belongs to the technical field of gear drive and specifically relates to a gear drive clearance that disappears device is related to.

Background

The present gear transmission gap eliminating structure mainly comprises three types, one type is that a high-precision gear is matched with a high-precision mounting structure to reduce the gap between gears and reduce transmission return difference, the second type is that a combined gear is adopted and is connected with the gears through a spring, the tooth surface of the combined gear is respectively matched with the left tooth surface and the right tooth surface of the matched gear under the action of spring tension to achieve the effect of eliminating the gap, the third type is that the combined gear is adopted and is staggered between the gears to reduce the gap between the gears, the first type has high processing difficulty and high cost, the second type has complex structure, transmission torque is limited by spring tension, the structure of the spring is limited by the size of the gears, and the third type can only reduce the gap between the gears and cannot control the degree of gap reduction.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a gear drive clearance eliminating device for overcoming the defects of the prior art.

The purpose of the utility model can be realized through the following technical scheme:

the utility model provides a gear drive clearance device that disappears, includes driven gear, transition gear A, transition gear B, locating pin axle, bearing, base and driving gear, driven gear, locating pin axle install in proper order on the base, transition gear B and transition gear A pack into the bearing in proper order after, adorn on locating pin axle, transition gear A and transition gear B's tooth portion dislocation set.

Preferably, the transition gear A is in interference fit with the bearing.

Preferably, the transition gear B is in clearance fit with the bearing.

Preferably, the tooth parameters of the transition gear A and the transition gear B are the same.

Preferably, the device still include adjusting screw, transition gear A on be equipped with corresponding regulation screw hole, transition gear B on be equipped with the regulation hole corresponding position, adjusting screw penetrate regulation screw hole and regulation hole in proper order.

Preferably, the adjusting hole is a conical hole.

Preferably, the transition gear B is pushed to rotate around the central line of the positioning pin shaft by screwing the adjusting screw into the adjusting threaded hole and contacting the inclined plane of the tapered hole, so that the transition gear A and the transition gear B rotate relatively to adjust the dislocation of the tooth parts.

Preferably, the device further comprises a fastening screw, the transition gear A is provided with a corresponding fastening mounting hole, and a fastening threaded hole is formed in a corresponding position on the transition gear B.

Preferably, the fastening screw is screwed into the fastening threaded hole through the fastening mounting hole, so that the transition gear a and the transition gear B are coupled into a whole.

Preferably, the number of the fastening screws is three.

Compared with the prior art, the utility model has the advantages of it is following:

1. simple structure, convenient manufacture and low cost;

2. the fit clearance of the gear transmission is effectively eliminated, the return difference in the gear transmission process is reduced and eliminated, and the transmission precision of the gear is improved.

Drawings

Fig. 1 is a schematic exploded view of the present invention;

FIG. 2 is a schematic view of the assembly structure of the present invention;

FIG. 3 is a schematic diagram of the adjustment of the present invention;

FIG. 4 is a diagram illustrating the adjusting effect of the driven gear and the transition gear according to the present invention;

fig. 5 is a diagram illustrating the adjusting effect of the driving gear and the transition gear of the present invention.

Wherein 1 is driven gear, 2 is fastening screw, 3 is adjusting screw, 4 is transition gear A, 5 is transition gear B, 6 is the locating pin axle, 7 is the bearing, 8 is the base, 9 is the driving gear, 41 is the regulation screw hole, 51 is the bell mouth, 42 is the fastening mounting hole, 52 is the fastening screw hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall fall within the protection scope of the present invention.

As shown in fig. 1 and 2, a gear transmission gap eliminating device includes a driven gear 1, a transition gear a4, a transition gear B5, a positioning pin 6, a bearing 7, a base 8 and a driving gear 9, wherein the driving gear 9, the driven gear 1 and the positioning pin 6 are mounted on the base 8, the transition gear B5 and the transition gear a4 are sequentially mounted on the positioning pin 6 through the bearing 7, and after the tooth parts of the transition gear a4 and the transition gear B5 are adjusted to be dislocated, the relative positions of the two are fixed, so that the gear transmission gap is reduced.

The transition gear A4 is in interference fit with the bearing 7, and the transition gear B5 is in clearance fit with the bearing 7. The tooth parameters of the transition gear A4 and the transition gear B5 are the same.

The device further comprises an adjusting screw 3, a corresponding adjusting threaded hole 41 is formed in the transition gear A4, a tapered hole 51 is formed in the transition gear B5 in a corresponding position, the adjusting screw 3 is screwed into the adjusting threaded hole 41 and contacts with an inclined surface of the tapered hole 51 to push the transition gear B5 to rotate around the central line of the positioning pin shaft 6, and therefore the transition gear A4 and the transition gear B5 rotate relatively to adjust the dislocation of the tooth portions.

The device also comprises a fastening screw 2, a corresponding fastening mounting hole 42 is formed in the transition gear A4, a fastening threaded hole 52 is formed in a corresponding position on the transition gear B5, and the fastening screw 2 is screwed into the fastening threaded hole 52 through the fastening mounting hole 42, so that the transition gear A4 and the transition gear B5 are connected into a whole.

The number of the fastening screws 2 is 3.

As shown in fig. 3, a tapered hole 51 is formed in the transition gear B5 corresponding to the mounting hole of the adjustment screw 3 of the transition gear a4, and when the adjustment screw 3 is screwed into the inclined surface of the tapered hole 51 of the transition gear B5, the adjustment screw 3 can be screwed in to push the transition gear B5 to rotate around the center line of the positioning pin 6, so that the transition gear a4 and the transition gear B5 rotate relatively to form tooth misalignment.

As shown in fig. 4 and 5, the adjusting screw 3 is used for adjusting the gap between the transition gear a4 and the transition gear B5 to a proper position by displacing the transition gear a4 and the transition gear B5, so that the gap between the transition gear a4, the transition gear B5, the driving gear 9 and the driven gear 1 is adjusted, the fastening screw 2 on the transition gear a4 is locked, the transition gear a4 and the transition gear B5 are connected into a whole, and therefore the gap of the gear transmission is reduced, and the operation precision of the gear transmission is improved.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope of the present invention, and these modifications or replacements should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a gear drive clearance device that disappears, its characterized in that includes driven gear (1), transition gear A (4), transition gear B (5), locating pin axle (6), bearing (7), base (8) and driving gear (9), driven gear (1), locating pin axle (6) install in proper order on base (8), transition gear B (5) and transition gear A (4) pack into bearing (7) back in proper order, adorn on locating pin axle (6), transition gear A (4) and the tooth portion dislocation set of transition gear B (5).

2. A gear transmission anti-backlash arrangement according to claim 1, wherein the transition gear a (4) is in interference fit with the bearing (7).

3. A gear transmission anti-backlash arrangement according to claim 1, wherein the transition gear B (5) is in clearance fit with the bearing (7).

4. A gear backlash elimination device according to claim 1, wherein the tooth parameters of the transition gear a (4) and the transition gear B (5) are the same.

5. The gear transmission clearance eliminating device according to claim 1, further comprising an adjusting screw (3), wherein a corresponding adjusting threaded hole (41) is formed in the transition gear A (4), an adjusting hole is formed in a corresponding position on the transition gear B (5), and the adjusting screw (3) penetrates through the adjusting threaded hole (41) and the adjusting hole in sequence.

6. A gearing backlash-eliminating device according to claim 5, wherein said adjusting hole is a conical hole (51).

7. A gear transmission gap eliminating device according to claim 6, characterized in that the transition gear B (5) is pushed to rotate around the central line of the positioning pin shaft (6) by screwing the adjusting screw (3) into the adjusting threaded hole (41) and contacting the inclined surface of the tapered hole (51), so that the transition gear A (4) and the transition gear B (5) rotate relatively to adjust the tooth misalignment.

8. The gear transmission clearance eliminating device according to claim 1, further comprising a fastening screw (2), wherein a corresponding fastening mounting hole (42) is formed in the transition gear A (4), and a fastening threaded hole (52) is formed in a corresponding position on the transition gear B (5).

9. A gear drive backlash elimination device according to claim 8, wherein the fastening screw (2) is screwed into the fastening threaded hole (52) through the fastening mounting hole (42), thereby coupling the transition gear A (4) and the transition gear B (5) as a whole.

10. A gear transmission anti-backlash arrangement according to claim 8, wherein the number of said fastening screws (2) is three.