Multi-direction composite decoupling fatigue experiment combined device for rubber bushing

Abstract

The utility model discloses a rubber bushing multidirectional composite decoupling fatigue test combination device, which relates to the technical field of automobile part manufacturing and comprises a base, a directional plate, a transition plate, a product fixing seat and a cam mechanism. The directional plate is mounted on the base through a spring in a floating manner; the transition plate is arranged on the orientation plate, and a central column is arranged on the transition plate; the lower end of the product fixing seat is rotatably connected with the central column; the cam mechanism comprises a first torsional pendulum shaft and a second torsional pendulum shaft which are oppositely arranged; a swing arm is arranged at one end of the first torsional pendulum shaft and connected with the torsional pendulum hydraulic cylinder through a knuckle bearing. A connecting shaft is arranged at the other end of the first torsional pendulum shaft, and the connecting shaft penetrates through the product fixing seat and then is connected with the second torsional pendulum shaft. According to the utility model, the comprehensive experiment test of bushing products under the multi-direction composite test condition can be realized.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts manufacturing, in particular to a multi-directional composite decoupling fatigue test combined device for a rubber bushing. Background Art

[0002] In automobile suspension, rubber bushings are important shock-absorbing components. Their stiffness performance and durability reliability are directly related to the chassis performance and driving comfort of the automobile, so it is particularly important to verify their performance. The existing rubber bushing test device can only realize experimental testing under simple unidirectional test conditions, and cannot better simulate the actual multi-directional load conditions of rubber bushings, so it is impossible to obtain accurate simulation test results. Utility Model Content

[0003] In view of the defects existing in the prior art, the purpose of the utility model is to provide a rubber bushing multi-directional composite decoupling fatigue test combination device, which can realize comprehensive experimental testing of bushing products under multi-directional composite test conditions.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is: a rubber bushing multi-directional composite decoupling fatigue test combination device, including a base, and also including an orienting plate, a transition plate, a product fixing seat and a cam mechanism; the orienting plate is installed on the base by spring floating; the transition plate is arranged on the orienting plate, and a center column is arranged on the transition plate; the lower end of the product fixing seat is rotatably connected to the center column; the cam mechanism includes a first torsion pendulum shaft and a second torsion pendulum shaft arranged oppositely; a swing arm is arranged at one end of the first torsion pendulum shaft, and the swing arm is connected to the torsion pendulum hydraulic cylinder through a joint bearing; a connecting shaft is arranged at the other end of the first torsion pendulum shaft, and the connecting shaft is connected to the second torsion pendulum shaft after passing through the product fixing seat.

[0005] A further improvement is that a plurality of positioning columns are arranged between the oriented plate and the base, and positioning sleeves are arranged at the ends of the positioning columns.

[0006] A further improvement is that six groups of springs are arranged between the directional plate and the base, and guide pillars are arranged inside the springs.

[0007] A further improvement is that: the first torsion pendulum shaft is installed on the base through a first bearing seat; the second torsion pendulum shaft is installed on the base through a second bearing seat.

[0008] A further improvement is that the connecting shaft is connected to the first torsion swing shaft via a clamping sleeve.

[0009] A further improvement is that a first horizontal linear guide rail is arranged on the directional plate, and the transition plate is slidably arranged on the first horizontal linear guide rail.

[0010] A further improvement is that it also includes a horizontal hydraulic cylinder adapter plate, which is connected to the upper part of the product fixing seat through a second horizontal linear guide rail.

[0011] A further improvement is that it also includes a vertical hydraulic cylinder adapter plate, which is connected to the side of the product fixing seat through a vertical linear guide rail.

[0012] A further improvement is that it also includes a guide seat, on which a guide rod is provided, and the guide rod is connected to the vertical hydraulic cylinder adapter plate.

[0013] A further improvement is that the base is provided with a plurality of U-shaped grooves and hanging rings.

[0014] The beneficial effects of the utility model are:

[0015] 1. In the utility model, the function is designed as a universal structure, and various test requirements can be met by replacing fixed seats of different sizes, thus saving test costs.

[0016] 2. In the utility model, the device can realize comprehensive experimental testing of bushing products under multi-directional composite test conditions.

[0017] 3. In the utility model, the device has a compact structure and saves space. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a stereoscopic diagram of a multi-directional composite decoupling fatigue test assembly device for a rubber bushing in an embodiment of the utility model;

[0019] Figure 2 It is a top view of the rubber bushing multi-directional composite decoupling fatigue test assembly device in the embodiment of the utility model;

[0020] Figure 3 It is a side view of the rubber bushing multi-directional composite decoupling fatigue test assembly device in the embodiment of the utility model;

[0021] Figure 4 It is a cross-sectional view of the rubber bushing multi-directional composite decoupling fatigue test combination device in the embodiment of the utility model.

[0022] Reference numerals:

[0023] 1-base; 11-U-shaped groove; 12-lifting ring;

[0024] 2- directional plate; 21- spring; 22- positioning column; 23- positioning sleeve; 24- first horizontal linear guide rail; 25- guide column;

[0025] 3-transition plate; 31-center column;

[0026] 4- Product fixing seat;

[0027] 5-cam mechanism; 51-first torsion swing shaft; 52-first bearing seat; 53-connecting shaft; 54-swing arm; 55-spherical bearing; 56-clamping sleeve; 57-second torsion swing shaft; 58-second bearing seat;

[0028] 6- horizontal hydraulic cylinder adapter plate; 61- second horizontal linear guide rail;

[0029] 7-vertical hydraulic cylinder adapter plate; 71-vertical linear guide rail;

[0030] 8-guide seat; 81-guide rod. DETAILED DESCRIPTION

[0031] The embodiments of the present invention are described in detail below. The embodiments are shown in the accompanying drawings, wherein the same or similar numbers throughout represent the same or similar elements or elements with the same or similar functions.

[0032] In the description of the present invention, it should be noted that directional words, such as the terms "center", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of narrating the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific protection scope of the present invention.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the definition of "first" and "second" features can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "several" and "a number" is two or more, unless otherwise clearly and specifically defined.

[0034] The following is a further description of the specific implementation of the utility model in conjunction with the drawings of the specification, so that the technical solution and its beneficial effects of the utility model are clearer and more explicit. The following description of the embodiments with reference to the drawings is exemplary and intended to explain the utility model, but cannot be understood as limiting the utility model.

[0035] See also Figure 1 to Figure 4As shown, the embodiment of the utility model provides a multi-directional composite decoupling fatigue test combination device for rubber bushings, including a base 1, and also including an oriented plate 2, a transition plate 3, a product fixing seat 4 and a cam mechanism 5; the product fixing seat is designed as a universal part, which can be used for testing the dynamic and static stiffness of the product. The oriented plate 2 is floatingly mounted on the base 1 through a spring 21; the transition plate 3 is arranged on the oriented plate 2, and a central column 31 is arranged on the transition plate 3; the lower end of the product fixing seat 4 is rotatably connected to the central column 31, and the oriented plate and the transition plate are positioned by the central column, and can be freely rotated to change different test angles; the cam mechanism 5 includes a first torsion pendulum shaft 51 and a second torsion pendulum shaft 57 arranged oppositely; a swing arm 54 is arranged at one end of the first torsion pendulum shaft 51, and the swing arm 54 is connected to the torsion pendulum hydraulic cylinder through a joint bearing 55; the other end of the first torsion pendulum shaft 51 is provided with a connecting shaft 53, and the connecting shaft 53 passes through the product fixing seat 4 and is connected to the second torsion pendulum shaft 57. The torsion swing action is realized by connecting the joint bearing and the cam mechanism, which converts the horizontal reciprocating motion of the hydraulic cylinder into the torsion swing action of the shaft. Specifically, the base 1 is provided with a plurality of U-shaped grooves 11 and lifting rings 12. The base is connected to the T-shaped block in the test platform with standard parts through the U-shaped groove. Lifting rings are installed at the four corners of the base for easy lifting and movement.

[0036] See also Figure 3 and Figure 4 As shown, a plurality of positioning posts 22 are arranged between the directional plate 2 and the base 1, and a positioning sleeve 23 is arranged at the end of the positioning post 22. Six groups of springs 21 are arranged between the directional plate 2 and the base 1, and guide posts 25 are arranged inside the springs 21. The base and the directional plate are connected in a floating manner through six groups of springs, and can freely move in the vertical direction under the guidance of four groups of guide posts and guide sleeves. A first horizontal linear guide rail 24 is arranged on the directional plate 2, and the transition plate 3 is slidably arranged on the first horizontal linear guide rail 24.

[0037] See also Figure 4 As shown, the first torsion pendulum shaft 51 is installed on the base 1 through the first bearing seat 52; the second torsion pendulum shaft 57 is installed on the base 1 through the second bearing seat 58. The bearing in the bearing seat adopts a multi-alloy composite sliding bearing, which improves the motion accuracy and force strength. Specifically, the connecting shaft 53 is connected to the first torsion pendulum shaft 51 through the clamping sleeve 56.

[0038] See also Figure 1 to Figure 4 As shown, the rubber bushing multi-directional composite decoupling fatigue test assembly device also includes a horizontal hydraulic cylinder adapter plate 6, which is connected to the upper part of the product fixing seat 4 through a second horizontal linear guide rail 61.

[0039] See also Figure 1 to Figure 4As shown, the rubber bushing multi-directional composite decoupling fatigue test combined device also includes a vertical hydraulic cylinder adapter plate 7, which is connected to the side of the product fixing seat 4 through a vertical linear guide rail 71. It also includes a guide seat 8, on which a guide rod 81 is provided, and the guide rod 81 is connected to the vertical hydraulic cylinder adapter plate 7.

[0040] The working principle of the utility model is:

[0041] The linear motion during the test is transmitted by directly connecting the conversion seat with the linear hydraulic cylinder of the test equipment; motion decoupling is achieved by designing and installing linear guides, guide columns and guide sleeves to achieve non-interference in motion; torsional pendulum motion is achieved by designing a cam mechanism to convert the linear motion of the test equipment into torsional pendulum motion; the product's rotation angle test is achieved by the adjustable rotation of the directional plate.

[0042] In the description of the specification, the description with reference to the terms "one embodiment", "preferably", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model, and the schematic expressions of the above terms in this specification do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0043] Through the description of the above structure and principle, technicians in the relevant technical field should understand that the present invention is not limited to the above-mentioned specific implementation methods. Improvements and substitutions based on the present invention using the known technology in the field all fall within the protection scope of the present invention and should be defined by the claims.

Claims

1. A multi-directional composite decoupling fatigue test assembly device for a rubber bushing, comprising a base (1), characterized in that: The invention also comprises an orienting plate (2), a transition plate (3), a product fixing seat (4) and a cam mechanism (5); the orienting plate (2) is floatingly mounted on the base (1) via a spring (21); the transition plate (3) is arranged on the orienting plate (2), and a central column (31) is arranged on the transition plate (3); the lower end of the product fixing seat (4) is rotatably connected to the central column (31); the cam mechanism (5) comprises a first torsion pendulum shaft (51) and a second torsion pendulum shaft (57) which are arranged opposite to each other; a swing arm (54) is arranged at one end of the first torsion pendulum shaft (51), and the swing arm (54) is connected to a torsion pendulum hydraulic cylinder via a joint bearing (55); a connecting shaft (53) is arranged at the other end of the first torsion pendulum shaft (51), and the connecting shaft (53) passes through the product fixing seat (4) and is connected to the second torsion pendulum shaft (57).

2. The multi-directional composite decoupling fatigue test combined device for rubber bushing according to claim 1 is characterized in that: A plurality of positioning columns (22) are arranged between the oriented plate (2) and the base (1), and positioning sleeves (23) are arranged at the ends of the positioning columns (22).

3. The multi-directional composite decoupling fatigue test assembly device for rubber bushing according to claim 1 is characterized in that: Six groups of springs (21) are arranged between the directional plate (2) and the base (1), and guide pillars (25) are arranged inside the springs (21).

4. The multi-directional composite decoupling fatigue test assembly device for rubber bushing according to claim 1 is characterized in that: The first torsion pendulum shaft (51) is mounted on the base (1) via a first bearing seat (52); and the second torsion pendulum shaft (57) is mounted on the base (1) via a second bearing seat (58).

5. The multi-directional composite decoupling fatigue test assembly device for rubber bushing according to claim 1 is characterized in that: The connecting shaft (53) is connected to the first torsion swing shaft (51) via a clamping sleeve (56).

6. The multi-directional composite decoupling fatigue test combined device for rubber bushing according to claim 1 is characterized in that: The directional plate (2) is provided with a first horizontal linear guide rail (24), and the transition plate (3) is slidably arranged on the first horizontal linear guide rail (24).

7. The multi-directional composite decoupling fatigue test assembly device for rubber bushing according to claim 1 is characterized in that: It also includes a horizontal hydraulic cylinder adapter plate (6), which is connected to the upper part of the product fixing seat (4) through a second horizontal linear guide rail (61).

8. The multi-directional composite decoupling fatigue test assembly device for rubber bushing according to claim 1 is characterized in that: It also includes a vertical hydraulic cylinder adapter plate (7), which is connected to the side of the product fixing seat (4) through a vertical linear guide rail (71).

9. The rubber bushing multi-directional composite decoupling fatigue test combined device according to claim 8 is characterized in that: It also comprises a guide seat (8), on which a guide rod (81) is arranged, and the guide rod (81) is connected to the vertical hydraulic cylinder adapter plate (7).

10. The multi-directional composite decoupling fatigue test assembly device for rubber bushing according to claim 1 is characterized in that: The base (1) is provided with a plurality of U-shaped grooves (11) and hanging rings (12).

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