Gear damper

Abstract

The utility model relates to the technical field of damping devices, in particular to a gear damper. A gear damper comprises a shell and a rotating body, a cylinder is arranged in the center of the shell, the rotating body is clamped on the cylinder, a damping cavity is formed between the rotating body and the inner wall of the shell, damping liquid is injected into the damping cavity, a rotating shaft is arranged in the center of the top of the rotating body and penetrates through a cover plate, the cover plate is arranged on the shell in a sealed mode, and the rotating shaft is sleeved with a gear. The upper portion of the rotating shaft is a rotating rod, the upper portion of the rotating rod is a braking body, the lower portion of the rotating body is a rotating body, a rotating seat integrated with the rotating shaft is arranged in the middle of the lower portion of the rotating body, and a damping opening is formed in the rotating body in the vertical direction. The utility model has the beneficial effects that one side of the brake body is flatly cut, the brake body is convenient to process, the brake body is matched with the gear insertion hole, two sides of the rotary body are flatly cut, a space is reserved, uniform resistance is obtained because the flow of damping oil is blocked, the damping effect is lasting, and the service life is long; and the damping groove and the rotating seat also generate a damping effect with the damping oil through the damping opening, so that the resistance is more uniform.

Description

TECHNICAL FIELD

[0001] The utility model relates to damping device technical field especially a gear damper. BACKGROUND

[0002] Gear damper is widely used in various vehicle-mounted glasses box, ashtray, double-open handrail, hidden handle or box, roller shutter and other products, and has the effect of preventing shock and slowing down the opening and closing speed. The damper usually includes a shell, a rotating shaft and a sealing assembly, the rotating shaft is rotatably installed in the shell, and the gap between the rotating shaft and the accommodating cavity needs to be filled with silicone oil. When the rotating shaft rotates during operation, the cavity wall of the accommodating cavity is pressed and rubbed under the action of centrifugal force, which causes the gap distance to gradually decrease with the rotation of the rotating shaft, and the silicone oil in the gap is continuously squeezed out of the gap with the rotation of the rotating shaft, thereby causing uneven distribution of the silicone oil in the gap, affecting the stability of the rotating shaft, and thus affecting the overall shock prevention and opening and closing speed reduction effect of the gear damper. SUMMARY

[0003] In order to solve the above-mentioned technical problem of affecting stability, the utility model provides a gear damper.

[0004] The technical scheme of the utility model is as follows:

[0005] A gear damper includes a shell and a rotating body, the center of the shell is provided with a cylinder, the rotating body is clamped on the cylinder, a damping cavity is formed between the rotating body and the inner wall of the shell, the damping cavity is filled with damping liquid, the top center of the rotating body is provided with a rotating shaft, the rotating shaft penetrates through a cover plate, the cover plate is sealingly arranged on the shell, a gear is sleeved on the rotating shaft, the upper part of the rotating shaft is a rotating rod, the upper part of the rotating rod is a brake body, the lower part of the rotating body is a rotating body, the lower part of the rotating body is provided with a rotating seat which is integrated with the rotating shaft, and the rotating body is vertically provided with a damping port.

[0006] The inner wall of the shell is upwardly protruded to form a convex ring.

[0007] The outer side inner wall of the cover plate is recessed to form a clamping groove for fixing the convex ring, the inner side inner wall of the cover plate is provided with a sealing step, the sealing step is provided with a sealing ring, and the sealing ring is sleeved on the rotating body.

[0008] The brake body is vertically provided with a smooth surface on one side, the gear is provided with a insertion hole in the middle, the brake body is inserted into the insertion hole, and the wall surface opposite to the smooth surface is provided with a groove.

[0009] The shell is provided with a connecting plate on both sides, and the connecting plate is provided with a notch.

[0010] The upper part of the rotating body is provided with a boss, the outer side of the boss is recessed, the outer side of the boss is provided with a damping port, the outer wall adjacent to the damping port is vertically cut, the outer wall on the outer side of the damping port is provided with a damping protrusion, and the lower part of the boss is provided with a damping groove.

[0011] The damping port has an arc-shaped cross-section.

[0012] The technical solution of this utility model has a novel structure and a clever and simple design. The brake body is flat-cut on one side, which is easy to process and fits the gear insertion hole, which is very convenient. The rotating body is flat-cut on both sides, leaving space. Due to the obstruction of the flow of damping oil, uniform resistance is obtained, and the damping effect is long-lasting and the service life is long. The damping port makes the damping groove and the rotating seat also generate a damping effect with the damping oil, which further makes the resistance more uniform and the stability better. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a cross-sectional structural schematic diagram of the present invention;

[0015] Figure 3 This is a schematic diagram of the structure of the outer shell of this utility model;

[0016] Figure 4 , 5 This is a schematic diagram of the structure of the rotating body of this utility model;

[0017] Figure 6 , 7 This is a schematic diagram of the structure of the cover plate of this utility model;

[0018] Figure 8 , 9 This is a schematic diagram of the gear structure of this utility model. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments. Example

[0020] like Figure 1 , 2 A gear damper shown in 3, 4, 5, 6, 7, 8, and 9 includes a housing 1 and a rotating body 7. The housing 1 has a cylinder 2 at its center, and the rotating body 7 is mounted on the cylinder 2. A damping cavity is formed between the rotating body 7 and the inner wall of the housing 1. The damping cavity is filled with damping fluid. The rotating body 7 has a rotating shaft at its top center. The rotating shaft passes through a cover plate 4, which is sealed on the housing 1. A gear 5 is mounted on the rotating shaft. The upper part of the rotating shaft is a rotating rod 9, and the upper part of the rotating rod 9 is a brake body 11. The lower part of the rotating body 7 is a rotating body. The lower middle part of the rotating body has a rotating seat integrated with the rotating shaft. The rotating body has a damping port in the vertical direction.

[0021] The inner wall of the outer shell 1 protrudes upward to form a raised ring 14.

[0022] The inner wall of the cover plate 4 is recessed on the outside and is provided with a clamping groove 13 for fixing the protruding ring 14, the inner wall of the cover plate 4 is provided with a sealing step 3 on the inside, the sealing step 3 is provided with a sealing ring 8, and the sealing ring 8 is sleeved on the rotating body 7.

[0023] The braking body 11 is vertically cut on one side to form a smooth surface, the gear 5 is provided with a insertion hole 17 in the middle, the braking body 11 is inserted into the insertion hole 17, and the wall surface opposite to the smooth surface is provided with a groove.

[0024] The shell 1 is provided with a connecting plate on both sides, and the connecting plate is provided with a notch 6.

[0025] The rotating body is provided with a boss on the upper part, the boss is recessed on the outside, the boss is provided with a damping hole on the outside, the outer wall adjacent to the damping hole is vertically cut, the outer wall on the outside of the damping hole is provided with a damping block, and the damping groove 10 is arranged on the lower wall of the boss.

[0026] The cross section of the damping hole is in an arc shape.

[0027] In use, the cover plate 4 seals the damping oil in the damping cavity through a welding process, the rotating shaft rotates to drive the gear 5 and the cooperating part to move, the notch 6 fixes the damping in the cooperating part to ensure that it does not move, the rotating body is vertically cut on both sides to leave space, the damping oil obtains uniform resistance due to the obstruction of the flow of the damping oil, the damping effect is persistent, and the service life is long, the damping hole makes the damping groove 10 and the rotating seat also produce damping effect with the damping oil, and the resistance is further more uniform.

[0028] It should be understood that the above only describes the preferred embodiments of the present application and is not intended to limit the technical solutions of the present application. For those skilled in the art, according to the above description, the technical solutions can be increased, replaced, transformed or improved within the spirit and principles of the present application, and all these increased, replaced, transformed or improved technical solutions should belong to the protection scope of the appended claims of the present application.

Claims

1. A gear damper comprising a housing (1) and a rotating body (7), characterized in that: The shell (1) is centrally provided with a cylinder (2), the cylinder (2) is clamped with a rotating body (7), the rotating body (7) and the inner wall of the shell (1) form a damping cavity, the damping cavity is injected with damping liquid, the rotating body (7) is provided with a rotating shaft at the top center, the rotating shaft passes through the cover plate (4), the cover plate (4) is sealingly arranged on the shell (1), the rotating shaft is sleeved with a gear (5), the rotating shaft is a rotating rod (9), the rotating rod (9) is a brake body (11), the rotating body (7) is a rotating body, the rotating body is provided with a rotating seat which is integrated with the rotating shaft in the middle of the lower part, and the rotating body is provided with a damping port in the vertical direction.

2. A gear damper according to claim 1, characterised in that: The inner wall of the shell (1) is upwardly protruded to form a convex ring (14).

3. A gear damper according to claim 1, characterized in that: The outer side of the cover plate (4) is recessed to form a clamping groove (13) for fixing the convex ring (14), the inner side of the cover plate (4) is provided with a sealing step (3), the sealing step (3) is provided with a sealing ring (8), and the sealing ring (8) is sleeved on the rotating body (7).

4. A gear damper according to claim 1, characterized in that: The brake body (11) is vertically cut to form a smooth surface on one side, the gear (5) is provided with a insertion hole (17), the brake body (11) is inserted into the insertion hole (17), and the smooth surface of the opposite wall surface is provided with a groove.

5. A gear damper according to claim 1, characterized in that: The shell (1) is provided with a connecting plate on both sides, and the connecting plate is provided with a notch (6).

6. A gear damper according to claim 1, characterized in that: The rotating body is provided with a boss at the upper part, the boss is recessed on the outer side, the boss is provided with a damping port on the outer side, the outer wall adjacent to the damping port is cut flat, the outer wall on the outer side of the damping port is provided with a damping block, and the wall body on the lower part of the boss is provided with a damping groove (10).

7. A gear damper according to claim 1, characterized in that: The damping port is arc-shaped in cross section.

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