Novel control arm bushing

Abstract

The utility model relates to a novel control arm bushing which comprises an outer sleeve, an inner sleeve, a middle sleeve and a rubber element, the middle sleeve is located between the outer sleeve and the inner sleeve, the rubber element is located between the outer sleeve and the inner sleeve and wraps the middle sleeve, the rubber element is axially provided with two buffering notches, the number of the buffering notches is two, and the buffering notches are symmetrically arranged. The connecting pieces are fixedly connected between the middle sleeve and the outer sleeve, the two connecting pieces are symmetrically arranged between the middle sleeve and the outer sleeve, the two connecting pieces and the two buffering notches are arranged in a staggered mode, the connecting pieces are wrapped by the rubber elements, and due to the arrangement of the connecting pieces, the rigidity of the control arm lining is improved, and the service life of the control arm lining is prolonged. The rubber element is located between the outer sleeve and the inner sleeve and wraps the middle sleeve and the connecting piece, so that the control arm bush has good vibration resistance and noise resistance, the buffer notches can provide deformation space for the rubber element when the control arm bush is in a torsion working condition, and the phenomena of tearing and degumming are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile control arms, in particular to a novel control arm bushing. Background Art

[0002] The control arm bushing, also known as the suspension arm bushing, is an important component in the automobile suspension system. Its function is to provide a rotational joint between the control arm and the frame or body, while reducing noise and vibration during the suspension movement. The control arm bushing is usually composed of an outer sleeve, an inner sleeve and a rubber element. The rubber element is fixed between the outer sleeve and the inner sleeve to make the three become one. In order to increase the radial stiffness, some existing control arm bushings will choose to add a middle sleeve between the outer sleeve and the inner sleeve, that is, inside the rubber element. However, the setting of the middle sleeve is prone to cracking and debonding between the rubber element and the middle sleeve under large torsional conditions, which affects the service life of the control arm bushing. In view of this problem, the present application makes improvements. Utility Model Content

[0003] The utility model provides a novel control arm bushing, which solves the above problems existing in the use process of the prior art.

[0004] The technical solution of the utility model is achieved as follows: a new control arm bushing, comprising an outer sleeve, an inner sleeve, a middle sleeve and a rubber element, wherein the middle sleeve is located between the outer sleeve and the inner sleeve, the rubber element is located between the outer sleeve and the inner sleeve and covers the middle sleeve, the rubber element is axially provided with a buffer notch, two of the buffer notches are provided and are symmetrically arranged, a connecting piece is fixedly connected between the middle sleeve and the outer sleeve, two of the connecting pieces are symmetrically arranged between the middle sleeve and the outer sleeve, the two connecting pieces and the two buffer notches are staggered, and the connecting piece is wrapped in the rubber element.

[0005] Preferably, the connecting member includes two symmetrically arranged connecting plates, and two ends of the connecting plates are fixedly connected to the outer sleeve and the middle sleeve respectively.

[0006] Preferably, the middle sleeve and the connecting plate are both provided with a plurality of glue passing openings.

[0007] Preferably, the buffer notch is arc-shaped, and the rubber element is provided with round-head grooves at both ends of the buffer notch.

[0008] Preferably, a mounting plate is integrally formed on the outer side wall of the outer sleeve, and two mounting plates are symmetrically arranged on the outer side wall of the outer sleeve, and the mounting plates are correspondingly arranged on the outer side of the connecting piece.

[0009] Preferably, the inner side wall of the outer sleeve is provided with a cross rib corresponding to the mounting plate, and the cross rib is connected to two adjacent connecting plates.

[0010] Preferably, a fixing socket is fixedly connected to the outer side wall of the outer sleeve, and the fixing socket is located between the two mounting plates. Bolt connection openings are provided on the fixing socket and the mounting plates.

[0011] In summary, the beneficial effects of the present invention are:

[0012] 1. The utility model has a connecting piece fixedly connected between the middle sleeve and the outer sleeve, thereby improving the rigidity of the control arm bushing. The rubber element is located between the outer sleeve and the inner sleeve and covers the middle sleeve and the connecting piece, so that the control arm bushing has good vibration resistance and noise resistance. The buffer notch on the rubber element can provide a deformation space for the rubber element when the control arm bushing is in a torsional condition, so that the rubber element has a certain deflection ability when subjected to pressure and torque, thereby avoiding tearing and degumming.

[0013] 2. The setting of the glue port improves the pull-off force between the rubber element, the middle sleeve and the connecting plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the utility model after removing the rubber element;

[0017] Figure 3 This is a schematic diagram of the structure of the utility model installed on the control arm;

[0018] Figure 4 It is a partial three-dimensional schematic diagram of the utility model installed on the control arm;

[0019] Figure 5 for Figure 4 Schematic diagram of the structural explosion.

[0020] In the figure: 1, outer sleeve; 2, inner sleeve; 3, middle sleeve; 4, rubber element; 5, buffer notch; 6, connecting plate; 7, glue port; 8, round head slot; 9, mounting plate; 10, cross rib; 11, fixing socket; 12, bolt connection port; 13, control arm; 14, semicircular slot; 15, control arm fixing plate; 16, socket. DETAILED DESCRIPTION

[0021] The following will be combined with the attached embodiment of the utility model Figure 1-5 , clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example:

[0023] like Figures 1 to 5 As shown, the utility model discloses a novel control arm bushing, comprising an outer sleeve 1, an inner sleeve 2, a middle sleeve 3 and a rubber element 4, wherein the middle sleeve 3 is located between the outer sleeve 1 and the inner sleeve 2, and the rubber element 4 is injection molded between the outer sleeve 1 and the inner sleeve 2 and covers the middle sleeve 3, wherein the rubber element 4 is axially provided with a buffer notch 5, and the buffer notch 5 is provided with two and symmetrically arranged. In order to improve the rigidity of the control arm bushing, the utility model is provided with a connecting piece fixedly connected between the middle sleeve 3 and the outer sleeve 1, and the connecting piece is fixedly connected between the middle sleeve 3 and the outer sleeve 1 There are two symmetrically arranged therebetween, the two connecting pieces and the two buffer notches 5 are staggered, the connecting piece is wrapped in the rubber element 4, the rubber element 4 is located between the outer sleeve 1 and the inner sleeve 2 and covers the middle sleeve 3 and the connecting piece, so that the control arm bushing has good vibration resistance and noise resistance, wherein the buffer notches 5 on the rubber element 4 can provide a deformation space for the rubber element 4 when the control arm bushing is in a torsional condition, so that the rubber element 4 has a certain deflection ability when subjected to pressure and torque, thereby avoiding tearing and degumming.

[0024] Further, such as Figure 2 As shown, the connecting piece includes two symmetrically arranged connecting plates 6, and the two ends of the connecting plates 6 are respectively fixedly connected to the outer sleeve 1 and the middle sleeve 3, and the structural strength is high.

[0025] In order to improve the firmness of the connection between the rubber element 4, the middle sleeve 3 and the connecting plate 6, a plurality of rubber holes 7 are provided on the middle sleeve 3 and the connecting plate 6, through which the rubber is passed, thereby improving the pulling force between the rubber element 4, the middle sleeve 3 and the connecting plate 6.

[0026] In the present invention, the buffer notch 5 is arc-shaped, which is convenient for improving the stress condition of the rubber element 4, and the rubber element 4 is provided with round head grooves 8 at both ends of the buffer notch 5 to avoid tearing at both ends of the buffer notch 5 due to stress concentration.

[0027] like Figures 3 to 5As shown, in order to facilitate the connection between the control arm bushing and the control arm 13, a mounting plate 9 is integrally formed on the outer wall of the outer sleeve 1. Two mounting plates 9 are symmetrically arranged on the outer wall of the outer sleeve 1. It should also be noted that the mounting plates 9 are correspondingly arranged on the outer side of the connector. In addition, a cross rib 10 corresponding to the mounting plate 9 is arranged on the inner wall of the outer sleeve 1. The cross rib 10 is connected to two adjacent connecting plates 6. The arrangement of the cross rib 10 not only improves the structural strength of the outer sleeve 1 at the mounting plate 9, but also improves the structural strength of the connecting plate 6. Furthermore, a fixing socket 11 is fixedly connected to the outer wall of the outer sleeve 1. The fixing socket 11 is located between the two mounting plates 9. Bolt connection ports 12 are provided on the fixing socket 11 and the mounting plate 9.

[0028] When the utility model is installed on the control arm 13, as shown in FIG. Figure 5 As shown, the control arm 13 has a semicircular groove 14 for fitting on the outer sleeve 1, and the control arm 13 has a control arm fixing plate 15 that abuts against the mounting plate 9. In addition, a socket 16 is opened in the middle of the semicircular groove 14 of the control arm 13, and the socket 16 is for the fixing socket 11 to be inserted. The mounting plate 9 can be fixed to the control arm fixing plate 15 by bolts, and the fixing socket 11 inserted into the socket 16 is fixed to the control arm 13. This structure has high connection strength and is detachable, and the control arm bushing can be replaced separately.

[0029] It should also be pointed out that the terms used in the present invention, such as “front”, “rear”, “vertical”, “horizontal”, etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only used to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A new control arm bushing, comprising an outer sleeve, an inner sleeve, a middle sleeve and a rubber element, characterized in that: The middle sleeve is located between the outer sleeve and the inner sleeve, the rubber element is located between the outer sleeve and the inner sleeve and covers the middle sleeve, the rubber element is axially provided with a buffer notch, two of the buffer notches are symmetrically arranged, a connecting piece is fixedly connected between the middle sleeve and the outer sleeve, two of the connecting pieces are symmetrically arranged between the middle sleeve and the outer sleeve, the two connecting pieces and the two buffer notches are staggered, and the connecting piece is wrapped in the rubber element.

2. A novel control arm bushing according to claim 1, characterized in that: The connecting piece comprises two symmetrically arranged connecting plates, and two ends of the connecting plates are respectively fixedly connected to the outer sleeve and the middle sleeve.

3. A novel control arm bushing according to claim 2, characterized in that: The middle sleeve and the connecting plate are both provided with a plurality of glue passing openings.

4. A novel control arm bushing according to claim 1, characterized in that: The buffer notch is arc-shaped, and the rubber element is provided with round-head grooves at both ends of the buffer notch.

5. A novel control arm bushing according to claim 2, characterized in that: A mounting plate is integrally formed on the outer side wall of the outer sleeve, and two mounting plates are symmetrically arranged on the outer side wall of the outer sleeve, and the mounting plates are correspondingly arranged on the outer side of the connecting piece.

6. A novel control arm bushing according to claim 5, characterized in that: The inner side wall of the outer sleeve is provided with a cross rib corresponding to the mounting plate, and the cross rib is connected to two adjacent connecting plates.

7. A novel control arm bushing according to claim 5, characterized in that: A fixing socket is fixedly connected to the outer side wall of the outer sleeve, and the fixing socket is located between the two mounting plates. Bolt connection openings are provided on the fixing socket and the mounting plates.

Images