Friction damper type automobile shock absorber

Abstract

The utility model relates to the technical field of automobile parts, in particular to a friction damper type automobile shock absorber which comprises a shock absorption piece, the shock absorption piece comprises a spring, a baffle ring, a connecting rod, a friction ring and a second end, and the baffle ring is arranged on the lower portion in a cavity in a sliding mode. The damping piece is arranged in the cavity of the shell, so that the spring and the friction ring are prevented from being directly exposed outside, and corrosion of external factors such as dust, rainwater and corrosive substances to the damping piece is reduced; by arranging the limiting piece composed of the end cap with the unlocking groove, the screw rod and the screw groove, and the unlocking hole, limiting on the baffle ring is relieved, so that the connecting rod can be conveniently lifted upwards, the friction ring is replaced, and operation is easy and convenient; the limiting piece on the baffle ring protrudes out of the exhaust hole, and the baffle ring is located between the upper end and the lower end of the exhaust hole, so that the baffle ring is effectively limited and prevented from moving excessively in the working process, and the working stability of the shock absorber is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile parts, specifically is a friction damper type automobile shock absorber. BACKGROUND

[0002] The friction damper type automobile shock absorber is one kind of automobile shock absorbing device, which reduces vibration by generating damping force through friction.

[0003] The friction pad of the friction damper needs to be replaced after a period of use, and the traditional friction damper has the problem of inconvenient replacement of the friction pad, and the directly exposed spring and friction pad part are easily affected by external factors. UTILITY MODEL CONTENT

[0004] TECHNICAL PROBLEM

[0005] In view of the deficiencies of the prior art, the utility model provides a friction damper type automobile shock absorber.

[0006] (Two) Technical scheme

[0007] To achieve the above purpose, the utility model provides the following technical scheme: a friction damper type automobile shock absorber, comprising a shell and a first end, a cavity is arranged in the shell, a first end is arranged below the shell, and further comprising:

[0008] A damping member comprises a spring, a retaining ring, a connecting rod, a friction ring and a second end, the retaining ring is slidably arranged in the lower part of the cavity, a through hole is arranged on the shell and matched with the connecting rod, the second end is arranged above the connecting rod, the connecting rod penetrates through the through hole below and is connected with the retaining ring, the spring is sleeved on the connecting rod, the upper and lower ends of the spring are connected with the top wall of the cavity and the retaining ring respectively, an installation groove is arranged on the connecting rod, the friction ring is arranged in the installation groove, and the outer wall of the friction ring is in contact with the side wall of the through hole.

[0009] Exhaust holes are further arranged on the left and right sides below the shell.

[0010] In order to conveniently limit the retaining ring, the utility model improves that the retaining ring is arranged between the upper and lower ends of the exhaust hole, and a limiting member protruding from the exhaust hole is further arranged on the retaining ring.

[0011] In order to conveniently unlock the limiting of the retaining ring, the utility model improves that the limiting member comprises a screw rod and an end cap, one end of the screw rod is connected with the end cap, a screw groove matched with the screw rod is further arranged on the retaining ring, and the end cap protrudes from the shell.

[0012] In order to facilitate loosening end cap, the utility model improves, the end cap is still provided with the unlocking slot away from one end of the screw rod.

[0013] In order to facilitate adjusting the position of the retaining ring, the utility model improves, the left and right sides below the shell are still provided with unlocking holes.

[0014] Preferably, the outer diameter of the connecting rod is greater than the outer diameter of the second end.

[0015] (Three) beneficial effects

[0016] Compared with the prior art, the utility model provides a friction force damper type automobile shock absorber, has the following beneficial effects:

[0017] The friction force damper type automobile shock absorber, the damping piece is arranged in the cavity of the shell, avoids that spring and friction ring are directly exposed outside, reduces the erosion of external factors such as dust, rain, corrosive substance etc., prolongs the service life of spring and friction ring, guarantees the performance stability and reliability of shock absorber;

[0018] When needing to replace the friction ring (friction washer), the limiting piece of the end cap, the screw rod and the screw groove with the unlocking slot and the unlocking hole are set, the limiting of the retaining ring is released, so that the connecting rod can be conveniently lifted upwards, and then the friction ring is replaced, and the operation is simple and convenient;

[0019] The limiting piece on the retaining ring protrudes from the exhaust hole, and the retaining ring is located between the upper end and the lower end of the exhaust hole, which effectively limits the retaining ring and prevents it from moving excessively during work, ensuring the stability of the shock absorber. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the main view schematic drawing of the utility model structure;

[0021] Figure 2 It is the main view schematic drawing of the utility model structure;

[0022] Figure 3 It is the local schematic drawing of the utility model structure;

[0023] Figure 4 It is the local explosion schematic drawing of the utility model structure;

[0024] Figure 5 It is the main view schematic drawing of the shell with the first end of the utility model structure.

[0025] In the drawing: 1, shell;2, first end;3, spring;4, retaining ring;5, connecting rod;6, friction ring;7, second end;8, exhaust hole;9, screw rod;10, end cap;11, unlocking slot;12, unlocking hole. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor fall within the protection scope of the utility model.

[0027] Please refer to Figures 1-5 A friction damper type automobile shock absorber, comprising a shell 1 and a first end head 2, the shell 1 is provided with a cavity, the shell 1 is provided with a first end head 2 below, further comprising:

[0028] The damping member comprises a spring 3, a blocking ring 4, a connecting rod 5, a friction ring 6 and a second end head 7, the blocking ring 4 is slidably arranged in the lower part of the cavity, the shell 1 is provided with a through hole matched with the connecting rod 5, the second end head 7 is arranged above the connecting rod 5, the connecting rod 5 is connected with the blocking ring 4 through the through hole below, the spring 3 is sleeved on the connecting rod 5, the upper and lower ends of the spring 3 are connected with the top wall of the cavity and the blocking ring 4 respectively, the connecting rod 5 is provided with a mounting groove, the friction ring 6 is arranged in the mounting groove, and the outer wall of the friction ring 6 is in contact with the side wall of the through hole;

[0029] When the automobile runs on a bumpy road, the relative movement between the axle and the frame is generated, and the first end head 2 is driven to move up and down. The movement of the first end head 2 is transmitted to the damping member connected with it. At this time, the spring 3 is compressed or stretched, since the spring 3 is sleeved on the connecting rod 5, and the upper and lower ends are connected with the top wall of the cavity and the blocking ring 4 respectively, the expansion and contraction of the spring 3 will drive the blocking ring 4 to slide up and down in the cavity in the shell 1. In the sliding process of the blocking ring 4, the connecting rod 5 also moves, and the outer wall of the friction ring 6 arranged in the mounting groove of the connecting rod 5 is in contact with the side wall of the through hole in the shell 1 and generates friction. The friction forms damping force, converts the mechanical energy of automobile vibration into heat energy, thereby consuming vibration energy, realizing the attenuation of automobile vibration, and playing a damping role;

[0030] The retaining ring 4 is positioned between the upper and lower ends of the exhaust port 8, and a limiting element (composed of a screw 9 and an end cap 10) on the retaining ring 4 protrudes from the exhaust port 8. During normal operation, the limiting element restricts the movement range of the retaining ring 4, preventing excessive movement and ensuring the working stability of the shock absorber. For example, when the spring 3 extends or retracts, causing the retaining ring 4 to move upward or downward, the limiting element will block the retaining ring 4 at the exhaust port 8, preventing the retaining ring 4 from disengaging from its normal working position and ensuring that the friction ring 6 and the side wall of the through hole always maintain a suitable contact state, maintaining a stable damping force. Depending on the requirements, the limiting element can consist of an end protruding from the shock absorber and a pin. The pin and the retaining ring 4 are interference-fitted to ensure the stability of their assembly.

[0031] The end cap 10, away from the screw 9, is also provided with an unlocking groove 11, which facilitates the unlocking of the screw 9.

[0032] In actual use, unlocking holes 12 are also provided on the left and right sides below the housing 1. When the friction ring 6 needs to be replaced, the limiting component is unlocked, and then the retaining ring 4 is moved upward through the unlocking hole 12, so that the spring 3 is compressed and the friction ring 6 protrudes from the through hole, which can be disassembled. Depending on the requirements, the friction ring 6 can adopt an integral structure. The outer diameter of the connecting rod 5 is larger than the outer diameter of the second end 7, which facilitates the disassembly and assembly of the friction ring 6. The friction ring 6 can also adopt a semi-circular splicing structure. When the equipment is in working condition, the friction ring 6 is stably limited in the side wall of the through hole, and the friction ring 6 will not fall off.

[0033] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0034] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A friction damper type automotive shock absorber, comprising a housing (1) and a first end (2), wherein a cavity is provided inside the housing (1), and the first end (2) is provided below the housing (1), characterized in that, Also includes: The shock absorber includes a spring (3), a retaining ring (4), a connecting rod (5), a friction ring (6), and a second end (7). The retaining ring (4) is slidably disposed in the lower part of the cavity. A through hole adapted to the connecting rod (5) is provided on the housing (1). The second end (7) is provided above the connecting rod (5). The connecting rod (5) passes through the through hole and is connected to the retaining ring (4). The spring (3) is sleeved on the connecting rod (5). The upper and lower ends of the spring (3) are respectively connected to the top wall of the cavity and the retaining ring (4). An installation groove is provided on the connecting rod (5). The friction ring (6) is disposed in the installation groove. The outer wall of the friction ring (6) contacts the side wall of the through hole. Vent holes (8) are also provided on the left and right sides below the shell (1).

2. The friction damper type automotive shock absorber according to claim 1, characterized in that, The retaining ring (4) is disposed between the upper and lower ends of the exhaust hole (8), and the retaining ring (4) is also provided with a limiting member protruding from the exhaust hole (8).

3. A friction damper type automotive shock absorber according to claim 2, characterized in that, The limiting component includes a screw (9) and an end cap (10). One end of the screw (9) is connected to the end cap (10). The retaining ring (4) is also provided with a screw groove that is compatible with the screw (9). The end cap (10) protrudes from the housing (1).

4. A friction damper type automotive shock absorber according to claim 3, characterized in that, The end cap (10) away from the screw (9) is also provided with an unlocking groove (11).

5. A friction damper type automotive shock absorber according to claim 4, characterized in that, Unlocking holes (12) are also provided on the left and right sides below the housing (1).

6. A friction damper type automotive shock absorber according to claim 5, characterized in that, The outer diameter of the connecting rod (5) is larger than the outer diameter of the second end (7).

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