Control arm bushing structure

Abstract

The utility model relates to the technical field of bushings, and provides a control arm bushing structure which comprises a main body provided with a through hole; the middle framework is provided with a feeding end, a connecting end and a clamping end which are connected in sequence, the size of the section of the feeding end is smaller than that of the section of the clamping end, after the feeding end penetrates through the through hole, the clamping end is arranged on the main body in a clamping mode, and the connecting end is located in the through hole. By means of the technical scheme, the problem that in the prior art, a middle framework on a lining has the risk of falling in the using process is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of bushings, and in particular to a control arm bushing structure. Background Art

[0002] The automobile control arm bushing is installed on the McPherson suspension control arm. Its main function is to reduce shock and noise, which plays an important role in the vehicle's operational stability. It is necessary to improve the traditional automobile control arm bushing to improve its shock absorption, noise reduction and durability. In the prior art, the automobile control arm is connected to the vehicle body through the bushing, etc., and the middle frame on the bushing has the risk of falling off during use. Utility Model Content

[0003] The utility model provides a control arm bushing structure, which solves the problem of the risk of a middle frame on the bushing falling off during use in the related art.

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

[0005] A control arm bushing structure, comprising:

[0006] a main body having a through hole;

[0007] The middle skeleton has a feed end, a connection end and a clamping end connected in sequence, the cross-sectional size of the feed end is smaller than the cross-sectional size of the clamping end, after the feed end passes through the through hole, the clamping end is clamped on the main body, and the connection end is located in the through hole.

[0008] Optionally, the main body includes:

[0009] Inner core;

[0010] An outer frame is arranged outside the inner core and forms an installation space with the inner core;

[0011] A rubber member is arranged in the installation space, and the through hole is located on the rubber member.

[0012] Optionally, the through hole is arranged in the same direction as the inner core.

[0013] Optionally, after the rubber component is vulcanized, it is integrally formed with the middle frame, the outer frame and the inner core.

[0014] Optionally, the through hole has a first straight end face, a first curved end face, a third curved end face and a fourth curved end face connected in sequence, and the clamping end has an annular end face, and after the rubber part is vulcanized, the annular end face is connected to the first straight end face, the first curved end face, the third curved end face and the fourth curved end face.

[0015] Optionally, the feeding end and the connecting end form a first clamping surface, and the clamping end and the connecting end form a second clamping surface, and the first clamping surface and the second clamping surface are respectively located on both sides of the two end surfaces of the rubber member.

[0016] Optionally, the feed end has a guiding slope, and the feed end slides into the through hole through the guiding slope and abuts against an edge of the end of the through hole.

[0017] The working principle and beneficial effects of the utility model are:

[0018] In the utility model, in order to prevent the middle frame from detaching from the main body, the two ends of the middle frame are designed as a feeding end and a clamping end. When the middle frame is installed in the through hole, the feeding end can pass through the through hole, while the clamping end will not pass through the through hole and will be clamped on the main body. After the middle frame is placed in the through hole, the main body will be subjected to a certain effect and some expansion changes will occur, causing the through hole to become smaller. The feeding end is also clamped on the main body. After the two ends of the middle frame are clamped together by the feeding end and the clamping end, they can be firmly fixed on the main body. This structural design is ingenious and prevents the middle frame from detaching from the main body. The purpose of the utility model is to provide a rubber bushing with a simple structure and low cost, which can meet the requirements of its own stiffness and the requirements of product fatigue and comfort, and at the same time prevent the middle frame from falling by improving the structure. Reduce after-sales claims. The rubber bushing of this embodiment did not break after reaching the required number of fatigue times during the bench fatigue test. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present utility model.

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 It is a cross-sectional schematic diagram of the utility model;

[0022] Figure 3 This is a schematic diagram of the skeleton structure of the utility model;

[0023] Figure 4 This is a schematic diagram of the cross-sectional structure of the skeleton in the utility model;

[0024] Figure 5 This is a schematic diagram of the through hole structure of the utility model;

[0025] In the figure: 1. main body, 2. rubber, 3. outer skeleton, 2-1. through hole, 4. middle skeleton, 4-1. feeding end, 4-2. connecting end, 4-3. clamping end, 4-4. first clamping table, 4-5. second clamping table, 2-2. first straight end face, 2-3. first arcuate end face, 2-4. third arcuate end face, 2-5. fourth arcuate end face, 4-6. annular end face, 4-7. annular guide slope, 5. inner core. DETAILED DESCRIPTION

[0026] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, they can also be understood as further technical solutions without paying creative work. In some figures, components with the same structure or function are only schematically illustrated, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0027] In this article, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0028] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0029] Reference Figure 1~Figure 5 , which is the first embodiment of the utility model, proposes a control arm bushing structure, including:

[0030] A main body 1 having a through hole 2-1;

[0031] The middle skeleton 4 has a feed end 4-1, a connection end 4-2 and a clamping end 4-3 which are connected in sequence. The cross-sectional size of the feed end 4-1 is smaller than the cross-sectional size of the clamping end 4-3. After the feed end 4-1 passes through the through hole 2-1, the clamping end 4-3 is clamped and set on the main body 1, and the connection end 4-2 is located in the through hole 2-1.

[0032] In this embodiment, in order to prevent the middle skeleton 4 from detaching from the main body 1, the two ends of the middle skeleton 4 are designed as a feed end 4-1 and a clamping end 4-3 structure. When the middle skeleton 4 is installed in the through hole 2-1, the feed end 4-1 can pass through the through hole 2-1, while the clamping end 4-3 will not pass through the through hole 2-1 and will be clamped on the main body 1. After the middle skeleton 4 is placed in the through hole 2-1, the main body 1 will be subjected to a certain effect and some expansion changes will occur, causing the through hole 2-1 to become smaller, and the feed end 4-1 will also be clamped on the main body 1. After the two ends of the middle skeleton 4 are clamped together with the feed end 4-1 and the clamping end 4-3, they can be firmly fixed on the main body 1. This structural design is ingenious and prevents the middle skeleton 4 from detaching from the main body 1. The purpose of this utility model is to provide a rubber 2 bushing with a simple structure and low cost, which can meet the requirements of its own rigidity and the requirements of product fatigue and comfort, and at the same time prevent the middle skeleton 4 from falling by improving the structure. Reduce after-sales claims. The rubber bushing 2 of this embodiment did not break after reaching the required number of fatigue times during the bench fatigue test.

[0033] Furthermore, the subject 1 comprises:

[0034] Inner core 5;

[0035] The outer frame 3 is arranged outside the inner core 5 and forms an installation space with the inner core 5;

[0036] The rubber 2 is arranged in the installation space, and the through hole 2-1 is located on the rubber 2. Furthermore, the through hole 2-1 is arranged in the same direction as the inner core 5. Furthermore, after the rubber 2 is vulcanized, it is integrally formed with the middle frame 4, the outer frame 3 and the inner core 5.

[0037] In this embodiment, due to the change and optimization of the structure of the middle frame 4, the durability requirements are greatly improved while ensuring the rigidity remains unchanged, and it is not necessary to increase the hardness of the rubber 2 or change the formula of the rubber 2 to improve the durability of the product. The axial rigidity of the product is improved, and the steering hysteresis of the whole vehicle is improved.

[0038] Furthermore, the through hole 2-1 has a first straight end face 2-2, a first curved end face 2-3, a third curved end face 2-4 and a fourth curved end face 2-5 which are connected in sequence, and the clamping end 4-3 has an annular end face 4-6. After the rubber 2 is vulcanized, the annular end face 4-6 is connected to the first straight end face 2-2, the first curved end face 2-3, the third curved end face 2-4 and the fourth curved end face 2-5.

[0039] In this embodiment, in order to facilitate installation, the through hole 2-1 is designed to be a U-shaped structure, that is, the first straight end face 2-2, the first curved end face 2-3, the third curved end face 2-4 and the fourth curved end face 2-5 are connected in sequence. The design of the U-shaped structure is to enhance the strength of the middle skeleton 4.

[0040] Furthermore, the feeding end 4-1 and the connecting end 4-2 form a first clamping surface 4-4, and the clamping end 4-3 and the connecting end 4-2 form a second clamping surface 4-5. The first clamping surface 4-4 and the second clamping surface 4-5 are respectively located on both sides of the two end surfaces of the rubber 2.

[0041] In this embodiment, after the rubber 2 expands, the through hole 2-1 is clamped between the first clamping surface 4-4 and the second clamping surface 4-5, thereby preventing the middle frame 4 from falling off from the through hole 2-1.

[0042] Furthermore, the feed end 4 - 1 has a guide slope, and the feed end 4 - 1 slides into the through hole 2 - 1 through the guide slope and abuts against the edge of the end of the through hole 2 - 1 .

[0043] In this embodiment, in order to facilitate the middle skeleton 4 to pass through the through hole 2-1, this scheme designs several guide bevels on the feed end 4-1. After being guided by the guide bevels, the feed end 4-1 first enters the through hole 2-1 at one end which is smaller and can enter directly. As the guide bevels contact the edges, the feed end 4-1 continues to increase until it completely enters the through hole 2-1.

[0044] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A control arm bushing structure, characterized in that: include: A main body (1) having a through hole (2-1); A middle frame (4), the middle frame (4) having a feed end (4-1), a connection end (4-2) and a clamping end (4-3) connected in sequence, the cross-sectional size of the feed end (4-1) being smaller than the cross-sectional size of the clamping end (4-3), after the feed end (4-1) passes through the through hole (2-1), the clamping end (4-3) is clamped and arranged on the main body (1), and the connection end (4-2) is located in the through hole (2-1).

2. A control arm bushing structure according to claim 1, characterized in that: The main body (1) comprises: Inner core (5); An outer frame (3) is arranged outside the inner core (5) and forms an installation space with the inner core (5); The rubber component (2) is arranged in the installation space, and the through hole (2-1) is located on the rubber component (2).

3. A control arm bushing structure according to claim 2, characterized in that: The through hole (2-1) and the inner core (5) are arranged in the same direction.

4. The control arm bushing structure according to claim 2, characterized in that: After being vulcanized, the rubber component (2) is integrally formed with the middle frame (4), the outer frame (3) and the inner core (5).

5. The control arm bushing structure according to claim 2, characterized in that: The through hole (2-1) has a first straight end face (2-2), a first arcuate end face (2-3), a third arcuate end face (2-4) and a fourth arcuate end face (2-5) which are connected in sequence; the clamping end (4-3) has an annular end face (4-6); after the rubber component (2) is vulcanized, the annular end face (4-6) is connected to the first straight end face (2-2), the first arcuate end face (2-3), the third arcuate end face (2-4) and the fourth arcuate end face (2-5).

6. The control arm bushing structure according to claim 2, characterized in that: The feeding end (4-1) and the connecting end (4-2) form a first clamping surface (4-4), the clamping end (4-3) and the connecting end (4-2) form a second clamping surface (4-5), and the first clamping surface (4-4) and the second clamping surface (4-5) are respectively located on both sides of the two end surfaces of the rubber component (2).

7. The control arm bushing structure according to claim 1, characterized in that: The feed end (4-1) has a guide slope (4-7), and the feed end (4-1) slides into the through hole (2-1) through the guide slope (4-7) and abuts against the edge of the end of the through hole (2-1).

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