CN213393415U - Vibration/noise reduction gear - Google Patents

Abstract

The utility model relates to a technical field of gear parts especially relates to a vibration/noise reduction gear. The utility model discloses a gear body, gear body lateral surface annular evenly is provided with a plurality of tooth bodies, gear body's center department is provided with the axle and places the hole, every the tooth body with Y type groove has been seted up to one side of gear body looks parallel and level, every first through-hole has all been seted up to the thickness direction both sides of tooth body, first through-hole with Y type inslot portion is linked together, wear to be equipped with the buffer block on the first through-hole, first through-hole inside with buffer block shape looks adaptation, Y type inslot portion is fixed with damper, works as gear body during operation, damper reduces gear body self frequency of vibration. The embodiment has the effects of reducing the noise generated by the vibration of the gear during working and protecting the hearing system of an operator.

Description

Vibration/noise reduction gear

Technical Field

The utility model relates to a technical field of gear parts especially relates to a vibration/noise reduction gear.

Background

Gear refers to a mechanical element on a rim with gears continuously engaged to transmit motion and power. The use of gears in transmissions has long emerged. At the end of the 19 th century, the principle of generating the cutting method and the successive appearance of special machine tools and cutters for cutting teeth by using the principle pay attention to the running stability of gears along with the development of production.

When the gears begin to work, the gears mesh with each other to generate noise, and the hearing of the operator is affected when the operator is in such an environment for a long time.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the prior art, and the vibration/noise reduction gear that proposes.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a vibration/noise reduction gear, includes the gear body, gear body lateral surface annular evenly is provided with a plurality of tooth bodies, the center department of gear body is provided with the axle and places the hole, every the tooth body with Y type groove has been seted up to one side of gear body looks parallel and level, every first through-hole has all been seted up to the thickness direction both sides of tooth body, first through-hole with Y type inslot portion is linked together, wear to be equipped with the buffer block on the first through-hole, first through-hole inside with buffer block shape looks adaptation, Y type inslot portion is fixed with damper, works as gear body during operation, damper reduces gear body self frequency of vibration.

Preferably, the damping component comprises two fixed blocks, two springs, two moving rods and a rubber block;

the Y-shaped groove comprises two branches and a main path, the main path is arranged along the radial direction of the gear body in a phase-releasing manner, and the two branches are respectively arranged on two sides of the main path;

the fixed block is fixed at one end, close to the main road, in the corresponding branch, the rubber block is fixed on the main road, the moving rod penetrates through the fixed block, one end of the moving rod is fixed with one side, located in the branch, of the buffer block, one end of the moving rod is located in the branch and parallel to the branch, and one end, far away from the buffer block, of the moving rod faces the rubber block;

the spring is wound on the peripheral surface of the moving rod, one end of the spring is fixed with one end of the buffer block, and the other end of the spring is fixed with the fixed block;

when the spring is in a natural state, the buffer block is partially positioned outside the tooth body, and one end of the moving rod is separated from the rubber block by a certain distance.

Preferably, the length of the first through hole is smaller than that of the branch, a stopper is fixed at one end of the buffer block located inside the branch, the stopper is matched with the shape of the branch, and the part of the stopper located outside the buffer block faces the part of the first through hole located inside the branch.

Preferably, a top cover is fixed at the opening of the Y-shaped groove, the top cover is located on one side of the outer portion of the Y-shaped groove and flush with one side of the tooth body, and the top cover is matched with the cross section of the inner portion of the Y-shaped groove in shape.

Preferably, the inner wall of the main path is provided with silencing cotton.

The utility model has the advantages that: through buffer block and damper, make the gear at the course of the work, the frequency of vibration of gear during operation reduces, because the cotton existence of amortization simultaneously again, makes the noise that vibrations and sent of gear during operation, has protected operating personnel's hearing system.

Drawings

Fig. 1 is a schematic view of an overall perspective structure of a vibration/noise reduction gear provided by the present invention;

fig. 2 is the utility model provides a damping and noise reduction gear's a department enlargies the schematic structure.

In the figure: 1. a gear body; 2. a tooth body; 21. a first through hole; 11. a shaft placement hole; 3. a Y-shaped groove; 4. a buffer block; 5. a shock absorbing assembly; 51. a fixed block; 52. a spring; 53. a motion bar; 54. a rubber block; 31. a branch circuit; 32. a main road; 41. a stopper; 6. a top cover; 7. silencing cotton.

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 only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-2, a vibration and noise reduction gear includes a gear body 1. The cross section of the gear body 1 is circular. The gear body 1 lateral surface annular just is provided with a plurality of tooth body 2 around the central point equidistance integrated into one piece of gear body 1. In the present embodiment, the number of tooth bodies 2 is eight. A shaft placing hole 11 is formed at the central point of the gear body 1.

A Y-shaped groove 3 is arranged on one side plane of each tooth body 2. The Y-shaped grooves 3 are distributed around the center point of the gear body 1 at equal intervals. First through holes 21 are formed in both sides of each gear in the thickness direction. The first through hole 21 is communicated with the inside of the Y-shaped groove 3.

The Y-groove 3 includes two branches 31 and a main path 32. The main path 32 is provided along the radial direction of the gear body 1. And the plane of symmetry of main path 32 coincides with the plane of symmetry of tooth body 2. Two branches 31 are disposed on both sides of the main path 32, and an acute angle is formed between the branches 31 and the main path 32.

The length of the first through hole 21 is smaller than the length of the branch 31. In the present embodiment, the length of the first through hole 21 is 0.8 times the length of the branch 31. The first through hole is provided with a buffer block 4 in a penetrating way. The first through hole is matched with the shape of the buffer block 4. The buffer block 4 has a stopper 41 integrally formed at one end thereof located inside the branch 31. The stop 41 is located inside the branch 31. And the portion of the stopper 41 located outside the buffer block 4 is opposite to the portion of the first through hole located inside the branch 31. The stopper 41 prevents the buffer block 4 from coming out of contact with the first through hole. When the stopper 41 is in contact with the first through hole, the stopper 41 is partially positioned outside the tooth body 2.

And a damping component 5 is fixed in the Y-shaped groove 3. The shock absorbing assembly 5 includes two fixing blocks 51, two springs 52, two moving rods 53 and a rubber block 54. Fixed block 51 is fixed in corresponding branch road 31 near main road 32 one end department, and rubber block 54 is fixed on main road 32, and motion pole 53 wears to establish on fixed block 51, and the one end of motion pole 53 is fixed mutually with buffer block 4 one side that is located branch road 31 inside, and the one end of motion pole 53 is located branch road 31 inside, and motion pole 53 is parallel with branch road 31, and the one end that motion pole 53 kept away from buffer block 4 is just facing to rubber block 54. The spring 52 is wound around the outer circumferential surface of the moving rod 53, one end of the spring 52 is fixed to one end of the buffer block 4, and the other end of the spring 52 is fixed to the fixed block 51. When the spring 52 is in a natural state, the cushion block 4 is partially located outside the tooth body 2, and one end of the moving rod 53 is spaced apart from the rubber block 54. When two gears mesh each other, buffer block 4 receives under the exogenic action, and buffer block 4 is at the inside motion of first through-hole. The jogging block drives the motion rod 53 to move. At this time, the spring 52 is in a compressed state. The vibration frequency of the buffer block 4 is reduced due to the elastic force of the spring 52. As the motion bar 53 continues to move. When one side of the cushion block 4 is flush with one side of the tooth body 2, one end of the moving rod 53 is just against the rubber block 54. Due to the deformable nature of the rubber blocks 54 themselves. The rubber block 54 further reduces the vibration frequency of the moving rod 53.

The inner wall of the main path 32 is provided with silencing cotton 7. The silencing cotton 7 is not in contact with the moving rod 53.

A top cover 6 is fixed at the opening of the Y-shaped groove 3, one side of the top cover 6, which is positioned outside the Y-shaped groove 3, is flush with one side of the tooth body 2, and the top cover 6 is matched with the cross section of the inside of the Y-shaped groove 3. Make things convenient for operating personnel to install damper 5 and buffer block 4.

In this embodiment, when the gear is operated, the other gear touches the buffer block 4. The buffer block 4 starts to move. During the movement of the buffer block 4, the moving rod 53 moves toward the rubber block 54. The spring 52 is in a compressed state. When one side of the buffer block 4 is flush with one side of the tooth body 2, one end of the moving rod 53 is just against the rubber block 54. The vibration frequency of the buffer block 4 is reduced by the action of the damper assembly 5.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (5)

1. A shock-absorbing noise-reducing gear comprises a gear body (1), a plurality of gear bodies (2) are annularly and uniformly arranged on the outer side surface of the gear body (1), a shaft placing hole (11) is formed in the center of the gear body (1), it is characterized in that one side of each tooth body (2) which is parallel to the gear body (1) is provided with a Y-shaped groove (3), both sides of each tooth body (2) in the thickness direction are provided with first through holes (21), the first through hole (21) is communicated with the inside of the Y-shaped groove (3), a buffer block (4) is arranged on the first through hole (21) in a penetrating way, the inner part of the first through hole (21) is matched with the shape of the buffer block (4), a damping component (5) is fixed in the Y-shaped groove (3), when the gear body (1) works, the damping component (5) reduces the self vibration frequency of the gear body (1).

2. A shock-absorbing and noise-reducing gear according to claim 1, characterized in that said shock-absorbing assembly (5) comprises two fixed blocks (51), two springs (52), two moving rods (53) and a rubber block (54);

the Y-shaped groove (3) comprises two branches (31) and a main path (32), the main path (32) is arranged along the radial direction of the gear body (1), and the two branches (31) are respectively arranged on two sides of the main path (32);

the fixed block (51) is fixed at one end close to the main road (32) corresponding to the interior of the branch road (31), the rubber block (54) is fixed on the main road (32), the moving rod (53) is arranged on the fixed block (51) in a penetrating way, one end of the moving rod (53) is fixed with one side of the buffer block (4) located in the interior of the branch road (31), one end of the moving rod (53) is located in the interior of the branch road (31), the moving rod (53) is parallel to the branch road (31), and one end of the moving rod (53) far away from the buffer block (4) is opposite to the rubber block (54);

the spring (52) is wound on the outer peripheral surface of the moving rod (53), one end of the spring (52) is fixed with one end of the buffer block (4), and the other end of the spring (52) is fixed with the fixed block (51);

when the spring (52) is in a natural state, the buffer block (4) is partially positioned outside the tooth body (2), and one end of the moving rod (53) is separated from the rubber block (54) by a certain distance.

3. A vibration and noise reducing gear according to claim 2, characterized in that the length of the first through hole (21) is smaller than the length of the branch (31), a stopper (41) is fixed to the end of the buffer block (4) located inside the branch (31), the stopper (41) is adapted to the shape of the branch (31), and the part of the stopper (41) located outside the buffer block (4) is opposite to the part of the first through hole (21) located inside the branch (31).

4. A vibration/noise reduction gear according to claim 1, wherein a top cover (6) is fixed at the opening of the Y-shaped groove (3), one side of the top cover (6) located outside the Y-shaped groove (3) is flush with one side of the gear body (2), and the top cover (6) is matched with the internal cross-sectional shape of the Y-shaped groove (3).

5. A shock absorbing and noise reducing gear according to claim 2, characterized in that noise reducing cotton (7) is provided at the inner wall of the main path (32).

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