Novel damper

Abstract

The novel damper comprises a rotating shaft, a damper shell, a damper end cover and a set of friction elastic pieces, the damper shell and the damper end cover are matched to form an inner cavity structure, one end of the rotating shaft extends into the inner cavity structure through the damper end cover, and the set of friction elastic pieces are arranged in the inner cavity structure and wrap the rotating shaft. A positioning structure is arranged between the friction elastic piece and the damper shell. The novel damper is reasonable in structural design, damping is achieved through the set of friction elastic pieces arranged on the rotating shaft in a sleeving mode, the set of friction elastic pieces are subjected to profiling positioning through the damper inner shell, the structure is simple, and cost is relatively low; the structure is compact, and a small damping structure is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of damping, in particular to a novel damper. Background Art

[0002] At present, the rotating structure of the automobile is mostly provided with a damping structure, and the damping structure is used to achieve damping between relatively rotating parts; the existing damping structure has a relatively large number of parts and a complex structure, which is not conducive to assembly and cost control.

[0003] For example, a group of friction plates and a rotary damper disclosed in Chinese patent CN113153053A includes a housing, an elastic element, a first passive friction plate, a friction plate group, a second passive friction plate and a second fixed ring; the structural forms of each friction plate are relatively different, and a friction plate body needs to be set for positioning, the structure is relatively complex, and the cost is relatively high. Utility Model Content

[0004] In view of the shortcomings of the prior art, the utility model provides a novel damper to achieve the purpose of simple structure and low cost.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] The novel damper comprises a rotating shaft, a damper housing and a damper end cover, and also comprises a group of friction spring sheets. The damper housing and the damper end cover cooperate to form an inner cavity structure. One end of the rotating shaft extends into the inner cavity structure through the damper end cover. A group of friction spring sheets are arranged in the inner cavity structure and wrapped around the rotating shaft. A positioning structure is provided between the friction spring sheets and the damper housing.

[0007] Further:

[0008] The friction spring sheet is an open annular spring sheet structure.

[0009] The damper housing is a sleeve housing with openings at both ends. One end of the sleeve housing cooperates with the damper end cover. An inner stopper for positioning the inner ends of a group of friction springs is arranged in the sleeve housing.

[0010] A group of annular oil grooves are arranged on the outer edge of the rotating shaft corresponding to the friction spring sheets.

[0011] The friction spring sheet is provided with a protruding positioning portion at a position corresponding to the opening, and the damper housing is provided with a positioning groove matched with the positioning portion.

[0012] A matching groove is provided on the inner side of the damper end cover, and an opening at one end of the sleeve housing is located in the matching groove and is sealed and connected.

[0013] The openings of adjacent friction springs are arranged in opposite directions.

[0014] The damper housing comprises a damper outer shell and a damper inner shell which are nested. The damper inner shell is a metal shell, and the positioning portion of the friction spring is located in a positioning groove of the damper inner shell.

[0015] Compared with the prior art, the utility model has the following advantages:

[0016] The novel damper has a reasonable structural design, and damping is achieved by a group of friction springs sleeved on the rotating shaft. The group of friction springs are positioned by contouring the damper inner shell, and has a simple structure and relatively low cost. In addition, the structure is compact, and a small damping structure is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The following is a brief description of the contents and symbols in the drawings of this specification:

[0018] Figure 1 The utility model is a schematic diagram of the damper appearance Figure 1 .

[0019] Figure 2 The utility model is a schematic diagram of the damper appearance Figure 2 .

[0020] Figure 3 For along Figure 2 AA cross-sectional view.

[0021] Figure 4 The utility model is a schematic diagram of the damper appearance Figure 3 .

[0022] Figure 5 This is a schematic diagram of the utility model with the outer shell removed.

[0023] Figure 6 This is a schematic diagram of the utility model with the inner shell removed.

[0024] Figure 7 It is a schematic diagram of the rotating shaft and end cover of the utility model.

[0025] In the figure:

[0026] 1. Rotating shaft, 101. Annular oil groove, 2. Damper end cover, 3. Damper housing, 301. Inner stopper, 4. Damper inner housing, 5. Friction spring. DETAILED DESCRIPTION

[0027] The specific implementation of the utility model will be further explained in detail below through the description of embodiments with reference to the accompanying drawings.

[0028] like Figures 1 to 7As shown, the new damper includes a rotating shaft 1, a damper housing, a damper end cover 2 and a group of friction springs 5. The damper housing and the damper end cover cooperate to form an inner cavity structure. One end of the rotating shaft 1 extends into the inner cavity structure through the damper end cover, and the other end of the rotating shaft is located outside the inner cavity structure. An installation positioning plane is provided on the outer edge of the other end of the rotating shaft. A group of friction springs are arranged in the inner cavity structure and wrapped around the rotating shaft. A positioning structure is provided between the friction springs and the damper housing.

[0029] The utility model has a reasonable damper structure design, realizes damping by a group of friction springs sleeved on the rotating shaft, and the group of friction springs are positioned by contouring the damper inner shell, has a simple structure, and is relatively low in cost; and has a compact structure, realizing a small damping structure.

[0030] The friction spring piece 5 is an open annular spring piece structure. A group of annular oil grooves 101 are provided on the outer edge of the rotating shaft corresponding to the friction spring piece. The group of annular oil grooves are axially spaced along the inner end of the rotating shaft.

[0031] The damper housing is a sleeve housing with openings at both ends, one end of the sleeve housing cooperates with the damper end cover 2, and an inner stopper 301 for positioning the inner ends of a group of friction springs is provided in the sleeve housing; one end of a group of friction springs is limited by the inner side of the damper end cover, and the other end of a group of friction springs is limited by the inner stopper, a through hole is provided in the center of the inner stopper, and the inner end of the rotating shaft is located in the through hole, so the structure is stable and reliable.

[0032] A matching groove is provided on the inner side of the damper end cover 2, and an opening at one end of the sleeve housing is located in the matching groove and is sealed and connected to form a closed damping structure.

[0033] A protruding positioning portion is provided at the opening position corresponding to the friction spring piece, and a positioning groove matching the positioning portion is provided on the damper housing; the openings of adjacent friction spring pieces are arranged in opposite directions, and the structure is stable and reliable.

[0034] Furthermore, the damper housing includes a nested damper outer shell 3 and a damper inner shell 4, that is, the damper inner shell is arranged in the damper outer shell, the damper outer shell is an injection-molded plastic part, and the damper inner shell is a metal shell, preferably an aluminum alloy part. The positioning part of the friction spring is located in the positioning groove of the damper inner shell, and the positioning part and the positioning groove are contoured and positioned, so the structure is stable and reliable and not prone to failure.

[0035] The above is only an explanation of the preferred embodiments of the present invention. The above technical features can be arbitrarily combined to form multiple embodiments of the present invention.

[0036] The utility model is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the utility model is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the concept and technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A novel damper, comprising a rotating shaft, a damper housing and a damper end cover, characterized in that: It also includes a group of friction springs, the damper housing and the damper end cover cooperate to form an inner cavity structure, one end of the rotating shaft extends into the inner cavity structure through the damper end cover, a group of friction springs are arranged in the inner cavity structure and wrapped around the rotating shaft, and a positioning structure is arranged between the friction springs and the damper housing; The friction spring is an open annular spring structure; a protruding positioning portion is provided at a position of the friction spring corresponding to the opening, and a positioning groove matching the positioning portion is provided on the damper housing; the damper housing comprises a nested damper outer shell and a damper inner shell, the damper outer shell is an injection-molded plastic part, the damper inner shell is a metal shell, and the positioning portion of the friction spring is located in the positioning groove of the damper inner shell; The damper housing is a sleeve housing with openings at both ends, one end of the sleeve housing cooperates with the damper end cover, and an inner stopper is provided in the sleeve housing for positioning the inner ends of a group of friction springs; one end of a group of friction springs is limited by the inner side of the damper end cover, and the other end of a group of friction springs is limited by the inner stopper, a through hole is provided at the center of the inner stopper, and the inner end of the rotating shaft is located in the through hole; A matching groove is provided on the inner side of the damper end cover, and an opening at one end of the sleeve housing is located in the matching groove and is sealed and connected.

2. The novel damper according to claim 1, characterized in that: A group of annular oil grooves are arranged on the outer edge of the rotating shaft corresponding to the friction spring sheets.

3. The novel damper according to claim 1, characterized in that: The openings of adjacent friction springs are arranged in opposite directions.

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