Endurance test device for traveling wheel arm of automobile sliding door

Abstract

The utility model discloses an endurance test device for a travelling wheel arm of an automobile sliding door, which belongs to the technical field of endurance tests for travelling wheel arms and comprises a support assembly, the support assembly comprises a rack, the top of the rack is fixedly connected with two shells, two groups of positioning support rods, adjusting assemblies and guide assemblies are adjustably connected between the two shells, and the two groups of positioning support rods, adjusting assemblies and guide assemblies are adjustably connected between the two shells. The adjusting assembly and the guiding assembly are arranged in the shell, the adjusting assembly is used for adjusting the distance between the two positioning supporting rods, and the guiding assembly is used for guiding and limiting displacement of the positioning supporting rods. Through the arrangement of the adjusting assembly, the two positioning support rods can be driven through lead screw transmission to adjust the distance, so that the distance between the two guide rails is flexibly adjusted, the device effectively adapts to walking wheel arms of different sizes for test processing, the adaptability of the device in use is greatly improved, the situation that the whole sliding door is used as a test object is avoided, and the test efficiency is improved. And the durability of the walking wheel arm can be quickly verified.

Description

Technical Field

[0001] This utility model relates to the field of wheel arm durability testing technology, specifically a vehicle sliding door wheel arm durability testing device. Background Technology

[0002] The sliding arm is the connecting component between the car body and the door. During the opening / closing process of the sliding door, it slides along the guide rail to ensure that the door moves along a predetermined trajectory. The durability of the sliding arm of a car sliding door is an important indicator of the performance of the car sliding door and a key technology of the sliding door. Cars with sliding doors, such as MPVs, are generally more expensive. Current technology directly uses finished cars or traditional car sliding door testing platforms to test the durability of the sliding arm.

[0003] An investigation revealed that a Chinese utility model patent (publication number: CN206488930U) discloses a durability testing device for the sliding door arm of an automobile (vehicle). The device includes: a frame; upper, middle, and lower guide rails, respectively positioned at the upper, middle, and lower parts of the frame. These rails are arranged to simultaneously support the pulleys of the upper, middle, and lower sliding arms. The positional relationship of the middle, upper, and lower guide rails corresponds to the positional relationship of the middle, upper, and lower rails in an actual vehicle. A first cylinder and a second cylinder are respectively positioned at the front and rear of the frame, with opposite pulling directions. The piston rods of the first and second cylinders are fixed to the sliding door handle via first and second pull ropes, respectively. This utility model eliminates the need for testing the durability of the sliding door arm hinge using an entire vehicle, resulting in a simple structure and low cost.

[0004] Although the aforementioned patent does not require durability testing of the entire vehicle's wheel arm, the test is still conducted in conjunction with the door. The device occupies a large space, and its test platform can only provide auxiliary support for a single model of door. Otherwise, the installation position may deviate due to changes in the wheel arm size, thereby reducing its installation and testing adaptability.

[0005] Therefore, this utility model provides a durability testing device for the sliding door wheel arm of an automobile to solve the above problems. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] This invention provides a durability testing device for the sliding door wheel arm of an automobile, which aims to solve the problems mentioned in the background art.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model provides the following technical solution: a durability testing device for a sliding door wheel arm of an automobile, comprising a support assembly, the support assembly comprising a frame, two housings fixedly connected to the top of the frame, two sets of positioning rods adjustablely connected between the two housings, guide rails fixedly connected to the side of the positioning rods that are close to each other, and wheel arm hinges sliding inside the guide rails, and positioning frames fixedly connected to the ends of the two wheel arm hinges that are close to each other;

[0010] An adjustment component and a guide component are respectively disposed inside a housing. The adjustment component is used to adjust the distance between two positioning rods, and the guide component is used to guide and limit the displacement of the positioning rods.

[0011] As a preferred technical solution of this application, a cylinder is fixedly connected to the bottom of each of the housings, and the lifting end of the cylinder is connected to a positioning frame via a pull rope.

[0012] As a preferred technical solution of this application, a counterweight basket is fixedly connected to the bottom of the positioning frame, and a counterweight is placed inside the counterweight basket. The positioning frame and the wheel arm hinge are rigidly connected by bolts.

[0013] In a preferred embodiment of this application, the adjusting assembly includes a bidirectional lead screw, with two sets of nut pairs externally connected to the lead screw. Each set of nut pairs is externally fixedly connected to a first guide seat. One end of each nut pair is fixedly connected to a plug-in post, and a handle is inserted into the plug-in post. In another preferred embodiment, a guide plate is fixedly connected to one side of the first guide seat that slides through to the outside of the housing, and a positioning support rod is fixedly connected to the other end of the guide plate. The outer wall of the bidirectional lead screw is rotatably connected to the housing via ball bearings.

[0014] As a preferred technical solution of this application, the guide assembly includes a light rod, which is fixedly connected to the inner wall of the housing. A guide sleeve is fitted on the outside of the light rod, and a second guide seat is fixedly connected to the outer wall of the guide sleeve. A guide plate is also fixedly connected to one side of the second guide seat that extends through to the outside of the housing.

[0015] (III) Beneficial Effects

[0016] The beneficial effects of this application are as follows:

[0017] 1. This utility model, through the setting of the adjustment component, can drive the two positioning support rods to adjust the distance through the lead screw transmission, thereby making the distance between the two guide rails flexibly adjustable. This allows it to effectively adapt to wheel arms of different sizes for testing, greatly improving the adaptability of the device and enabling it to effectively adapt to wheel arms of various sizes and positions for durability testing.

[0018] 2. This utility model can simulate the movement of a sliding door during actual operation, acting on the wheel arm to stop it from sliding in and out. It is highly targeted, avoids using the entire sliding door as a test object, and can quickly verify the durability of the wheel arm. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall appearance of this utility model;

[0020] Figure 2 This is a top view schematic diagram of the structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the axial cross-sectional structure of the counterweight basket of this utility model;

[0022] Figure 4 This is an exploded view of the support component of this utility model;

[0023] Figure 5 This is a schematic diagram of the positioning support rod distribution structure of this utility model;

[0024] Figure 6 This is an exploded view of the adjustment component of this utility model.

[0025] In the picture:

[0026] 1. Support assembly; 11. Frame; 12. Housing; 13. Cylinder; 14. Pull rope; 15. Positioning frame; 16. Counterweight basket; 17. Wheel arm hinge; 18. Guide rail; 2. Positioning support rod; 3. Two-way lead screw; 31. Nut pair; 32. First guide seat; 33. Insertion post; 34. Handle; 4. Guide plate; 5. Smooth rod; 51. Guide sleeve; 52. Second guide seat. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] like Figure 1-6As shown, this utility model provides a durability testing device for the sliding door wheel arm of an automobile, including a support assembly 1. The support assembly 1 includes a frame 11, with two housings 12 fixedly connected to the top of the frame 11. Two sets of positioning rods 2 are adjustablely connected between the two housings 12. Guide rails 18 are fixedly connected to the sides of the positioning rods 2 that are close to each other, and wheel arm hinges 17 slide inside the guide rails 18. Positioning frames 15 are fixedly connected to the ends of the two wheel arm hinges 17 that are close to each other. An adjustment assembly and a guide assembly are respectively disposed inside a housing 12. The adjustment assembly is used to adjust the distance between the two positioning rods 2, and the guide assembly is used to guide and limit the displacement of the positioning rods 2. By setting the adjustment assembly, the distance between the two sets of positioning rods 2 can be adjusted, thereby enabling the installation and matching of wheel arm hinges 17 of different lengths, improving the adaptability of the device for testing. At the same time, the device can effectively perform durability testing on the wheel arm hinges 17 without the need for testing with the car door or the whole vehicle, reducing testing costs and floor space.

[0029] Furthermore, a cylinder 13 is fixedly connected to the bottom of each housing 12. The lifting end of the cylinder 13 is connected to a positioning frame 15 through a pull rope 14. Through the cooperation of the cylinder 13 and the pull rope 14, the positioning frame 15 can be pulled, thereby realizing the left and right sliding adjustment of the wheel arm hinge 17, effectively simulating its sliding door opening and closing action.

[0030] Furthermore, a counterweight basket 16 is fixedly connected to the bottom of the positioning frame 15, and a counterweight is placed inside the counterweight basket 16. The positioning frame 15 and the wheel arm hinge 17 are rigidly connected by bolts. By setting the counterweight basket 16, counterweight processing can be achieved, thereby simulating the counterweight of the car door, so that the wheel arm hinge 17 can perform sliding tests for different car door weight loads.

[0031] Furthermore, the adjustment assembly includes a bidirectional lead screw 3, with two sets of nut pairs 31 externally connected to the bidirectional lead screw 3. Each set of nut pairs 31 is externally fixedly connected to a first guide seat 32. One end of the nut pair 31 is fixedly connected to a plug post 33, and a handle 34 is inserted into the plug post 33. The first guide seat 32 slides through to one side of the outer side of the housing 12 and is fixedly connected to a guide plate 4. The other end of the guide plate 4 is fixedly connected to a positioning support rod 2. The outer wall of the bidirectional lead screw 3 is rotatably connected to the housing 12 through a ball bearing. The rotation of the bidirectional lead screw 3 drives the nut pairs 31 to move, thereby driving the first guide seat 32 to move through the displacement of the nut pairs 31. Furthermore, the connection between the guide plate 4 and the positioning support rod 2 drives the positioning support rod 2 to adjust the spacing.

[0032] Furthermore, the guide assembly includes a light rod 5, which is fixedly connected to the inner wall of the housing 12. A guide sleeve 51 is sleeved on the outside of the light rod 5, and a second guide seat 52 is fixedly connected to the outer wall of the guide sleeve 51. A guide plate 4 is also fixedly connected to one side of the second guide seat 52 that extends through to the outside of the housing 12. Through the setting of this assembly, auxiliary guidance for adjusting the spacing of the positioning support rod 2 is realized, thereby improving the stability of the sliding displacement of the positioning support rod 2.

[0033] Working principle: First, the matching guide rail 18 is installed and positioned according to the size of the wheel arm hinge 17 to be tested. At the same time, by rotating the double-acting screw 3, the first guide seat 32 is moved by the synchronous displacement of the nut pair 31. Furthermore, the positioning support rod 2 is synchronously adjusted by the guide plate 4, so that the spacing of the positioning support rod 2 is effectively matched with the size of the wheel arm hinge 17 for sliding test. Then, by the indirect pulling operation of the cylinders 13 on both sides, the positioning frame 15 and the wheel arm hinge 17 are driven to perform reciprocating sliding test, thus realizing the durability test of the wheel arm hinge 17.

[0034] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A durability testing device for the sliding door wheel arm of an automobile, characterized in that: The support assembly (1) includes a frame (11). Two housings (12) are fixedly connected to the top of the frame (11). Two sets of positioning rods (2) are adjustable between the two housings (12). Guide rails (18) are fixedly connected to the side of the positioning rods (2) that are close to each other. Wheel arm hinges (17) slide inside the guide rails (18). Positioning frames (15) are fixedly connected to the end of the two wheel arm hinges (17) that are close to each other. An adjustment component and a guide component are respectively disposed inside a housing (12). The adjustment component is used to adjust the distance between the two positioning rods (2), and the guide component is used to guide and limit the displacement of the positioning rods (2).

2. The durability test device for a running door arm of a sliding door of an automobile according to claim 1, characterized in that: Each of the housings (12) is fixedly connected to a cylinder (13) at its lower end, and the lifting end of the cylinder (13) is connected to a positioning frame (15) via a pull rope (14).

3. The durability test device for a running door arm of a sliding door of an automobile according to claim 2, characterized in that: The bottom of the positioning frame (15) is fixedly connected to a counterweight basket (16), and a counterweight is placed inside the counterweight basket (16). The positioning frame (15) and the wheel arm hinge (17) are rigidly connected by bolts.

4. The durability test device for a running door arm of a sliding door of an automobile according to claim 1, characterized in that: The adjustment assembly includes a bidirectional lead screw (3), which is externally connected to two sets of nut pairs (31). Each set of nut pairs (31) is externally fixedly connected to a first guide seat (32). One end of each nut pair (31) is fixedly connected to a plug post (33), and a handle (34) is inserted into the plug post (33).

5. The durability test device for a running door arm of a sliding door of an automobile according to claim 4, characterized in that: The first guide seat (32) slides through to the outside of the housing (12) and is fixedly connected to a guide plate (4), and the other end of the guide plate (4) is fixedly connected to a positioning support rod (2). The outer wall of the bidirectional screw (3) is rotatably connected to the housing (12) through a ball bearing.

6. The durability test device for a running door arm of a sliding door of an automobile according to claim 1, characterized in that: The guide assembly includes a light rod (5), which is fixedly connected to the inner wall of the housing (12). A guide sleeve (51) is sleeved on the outside of the light rod (5), and a second guide seat (52) is fixedly connected to the outer wall of the guide sleeve (51). A guide plate (4) is also fixedly connected to one side of the second guide seat (52) that extends through to the outside of the housing (12).

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