Swing arm tool for single-side load fatigue test of automobile electric power steering system assembly

Abstract

The utility model discloses a swing arm tool for a single-side load fatigue test of an automobile electric power steering system assembly, which comprises a swing arm vertical plate, a rotating plate rotationally connected with the swing arm vertical plate, and two first connecting assemblies arranged on the rotating plate, the two first connecting assemblies are arranged to be used for being connected with an automobile electric power steering system assembly and load equipment correspondingly. The swing arm tool for the single-side load fatigue test of the automobile electric power steering system assembly can realize the connection between the automobile electric power steering system assembly and load equipment, has the advantages of convenience in use and stability and reliability in operation, and can meet the requirements of the single-side load fatigue test of the automobile electric power steering system assembly.

Description

TECHNICAL FIELD

[0001] The utility model belongs to vehicle steering system technical field, specifically, the utility model relates to a kind of swing arm tooling for automobile electric power steering system assembly (PP-EPS) unilateral load fatigue test. BACKGROUND

[0002] Existing electric power steering system assembly is two side push and pull (P-EPS, DP-EPS, R-EPS) under normal circumstances, but PP-EPS steering system assembly is distinguished from conventional two side push and pull and the problem caused by unilateral push and pull is whether the unilateral stroke, maximum load etc.

[0003] Chinese patent with application number 202321415343.5 discloses a kind of automobile electric power steering system assembly fatigue test loading tooling, including bottom plate, for placing electric power steering system assembly upper plate, setting up on bottom plate upright and bevel gear reduction device, setting up on upright and being connected with upper plate guiding device and with upper plate connection and for converting the rotary motion from bevel gear reduction device into the linear motion of upper plate screw transmission device.

[0004] It is desired to provide a kind of automobile electric power steering system assembly unilateral load fatigue test swing arm tooling, especially about how to ensure that similar automobile electric power steering system assembly (PP-EPS) unilateral load fatigue test can be normal, stable, effectively carried out. UTILITY MODEL CONTENTS

[0005] The utility model aims at at least solving one of the technical problems existing in prior art. To this end, the utility model provides a kind of automobile electric power steering system assembly unilateral load fatigue test swing arm tooling, and the purpose is to meet the requirements of automobile electric power steering system assembly unilateral load fatigue test.

[0006] To achieve the above-mentioned purpose, the technical scheme adopted by the utility model is as follows: the automobile electric power steering system assembly unilateral load fatigue test swing arm tooling includes swing arm upright, the rotary plate rotationally connected with swing arm upright and two first connection components arranged on the rotary plate, and the two first connection components are arranged to be respectively used for connecting automobile electric power steering system assembly and load equipment.

[0007] The first connection component includes taper sleeve and locking nut, and the taper sleeve is installed on the rotary plate through the locking nut.

[0008] The rotating plate is installed on the swing arm vertical plate through a second connecting assembly, the second connecting assembly comprises a steering shaft, a positioning sleeve arranged on the steering shaft, a rolling bearing and a bearing limiting sleeve, the bearing limiting sleeve is connected with the swing arm vertical plate, and the positioning sleeve is connected with the rotating plate.

[0009] The second connecting assembly further comprises a protective sleeve connected with the bearing limiting sleeve.

[0010] The second connecting assembly further comprises a bearing blocking ring arranged on the steering shaft and used for axially limiting the rolling bearing.

[0011] The swing arm vertical plate is provided with a shaft sleeve, and the steering shaft passes through the shaft sleeve.

[0012] The swing arm vertical plate is arranged on a swing arm bottom plate, the swing arm bottom plate is provided with a support plate, the support plate is connected with the swing arm vertical plate, and a plurality of support plates are arranged.

[0013] The support plate is provided with two.

[0014] The automobile electric power assisted steering system assembly single-side load fatigue test swing arm tool of the utility model can realize the connection of the automobile electric power assisted steering system assembly and a load device, has the advantages of convenient use, stable and reliable operation, and can meet the requirements of the automobile electric power assisted steering system assembly single-side load fatigue test. BRIEF DESCRIPTION OF DRAWINGS

[0015] The present specification includes the following drawings, and the shown contents are respectively:

[0016] Figure 1 It is an isometric view of the automobile electric power assisted steering system assembly single-side load fatigue test swing arm tool;

[0017] Figure 2 It is a top view of the automobile electric power assisted steering system assembly single-side load fatigue test swing arm tool;

[0018] Figure 3 It is a front view of the automobile electric power assisted steering system assembly single-side load fatigue test swing arm tool;

[0019] Figure 4 It is a swing arm assembly sectional view of the automobile electric power assisted steering system assembly single-side load fatigue test swing arm tool;

[0020] Figure 5 It is a front view of the actual connection of the automobile electric power assisted steering system assembly single-side load fatigue test swing arm tool and a pull rod;

[0021] Figure 6 It is a sectional view of the taper sleeve;

[0022] In the drawing, the marks are:

[0023] 1, swing arm base plate; 2, support plate; 3, bearing limiting sleeve; 4, protective sleeve; 5, rotating plate; 6, locking nut; 7, taper sleeve; 8, rolling bearing; 9, bearing retainer; 10, swing arm upright; 11, steering shaft; 12, bolt; 13, rotating plate positioning sleeve; 14, shaft sleeve. DETAILED DESCRIPTION

[0024] The specific embodiments of the present application will be further described below with reference to the drawings, and the purpose is to help the technical personnel in the art to have a more complete, accurate and in-depth understanding of the concept and technical scheme of the present application, and to facilitate its implementation.

[0025] It should be noted that in the following embodiments, the "first" and "second" do not represent the absolute division of structure and / or function, nor represent the execution order, but only for the convenience of description.

[0026] As Figures 1 to 6 shown, the utility model provides a kind of swing arm tool for single side load fatigue test of automobile electric power steering system assembly, including swing arm upright, rotating plate with swing arm upright for rotating connection and two first connecting components set on rotating plate, two first connecting components are set to be respectively used to connect automobile electric power steering system assembly and load equipment.

[0027] Specifically, as Figure 1 , Figure 3 and Figure 5 shown, first connecting component includes taper sleeve and locking nut, taper sleeve is installed on rotating plate by locking nut. Rotating plate is provided with first installation hole for inserting taper sleeve, first installation hole is provided with two, two first installation holes are sequentially arranged along the length direction of rotating plate, and locking nut is threadedly connected with one end of taper sleeve. The taper sleeves of the two first connecting components are respectively used to connect the outer pull rod of the automobile electric power steering system assembly and the outer pull rod of the load equipment, the taper sleeve is inserted into the round hole provided at the end of the outer pull rod, and the automobile electric power steering system assembly and the load equipment are respectively located on the opposite sides of the rotating plate.

[0028] When automobile electric power steering system assembly is subjected to fatigue test, the outer pull rod of automobile electric power steering system assembly will push rotating plate to swing left and right, and the load equipment will exert opposite force through the outer pull rod at the other end to realize stable, normal and effective fatigue test of automobile electric power steering system assembly. The swing arm tool cleverly solves the problem of insufficient stroke of load equipment through the relationship between force and displacement to ensure that single side load fatigue test of similar automobile electric power steering system assembly can be carried out normally, stably and effectively.

[0029] As shown in Figures 1 to 5 , the rotating plate is installed on the swing arm vertical plate through a second connecting assembly, the second connecting assembly comprises a steering shaft, a positioning sleeve, a rolling bearing and a bearing limiting sleeve arranged on the steering shaft, the bearing limiting sleeve is connected with the swing arm vertical plate, and the positioning sleeve is connected with the rotating plate. The rotating plate is provided with a second mounting hole through which the steering shaft penetrates, the axes of the first mounting hole and the second mounting hole are parallel, and the two first connecting assemblies are located above the second connecting assembly.

[0030] As shown in Figures 1 to 5 , the swing arm vertical plate is provided with a shaft sleeve, and the steering shaft penetrates the shaft sleeve. When the product assembly is subjected to fatigue test, the rotating plate is only allowed to swing around the axis of the steering shaft and is fixed in other directions, and the cooperation between the steering shaft and the shaft sleeve in the swing arm vertical plate can avoid the radial movement.

[0031] In addition, the bearing limiting sleeve is connected with the swing arm vertical plate, and the outer ring shoulder of the rolling bearing is matched with the bearing hole of the bearing limiting sleeve and the swing arm vertical plate, so that the steering shaft penetrating the inner ring of the rolling bearing can be well fixed while ensuring the axial rotation.

[0032] As shown in Figures 1 to 5 , in order to protect the rolling bearing, the second connecting assembly further comprises a protective sleeve connected with the bearing limiting sleeve.

[0033] As shown in Figures 1 to 5 , in order to further ensure the position of the rolling bearing, the second connecting assembly further comprises a bearing retainer ring arranged on the steering shaft and used for axially limiting the rolling bearing. The positioning sleeve and the rotating plate are fixed and tightly attached together through the tightening of the bolt and the steering shaft, so that the rotating plate can rotate the steering shaft by driving the rotating positioning sleeve during the swinging around the axis, and the rotating plate has a gap with the swing arm vertical plate during the swinging, thereby eliminating the friction between the rotating plate and the swing arm vertical plate.

[0034] As shown in Figures 1 to 3 , the swing arm vertical plate is arranged on the swing arm base plate, the swing arm base plate is provided with a support plate, the support plate is connected with the swing arm vertical plate, and the swing arm vertical plate is vertically arranged, the swing arm base plate is horizontally arranged, the swing arm base plate is located below the swing arm vertical plate and the support plate, the support plate is fixedly connected with the swing arm vertical plate and the swing arm base plate, and the support plate is arranged in multiple. The arrangement of the support plate improves the connection strength of the swing arm vertical plate and the swing arm base plate and increases the reliability of the swing arm vertical plate.

[0035] As shown in Figures 1 to 3 , in the embodiment, two support plates are arranged, and the two support plates are located on the same side of the swing arm vertical plate.

[0036] The utility model has been described exemplarily above in combination with the drawings. Apparently, the utility model is not limited by the above-mentioned mode in the specific implementation. As long as various non-essential improvements are made by adopting the method concept and technical scheme of the utility model; or the above-mentioned concept and technical scheme of the utility model are directly applied to other occasions without improvement, all are within the protection scope of the utility model.

Claims

1. Swing arm fixture for single-side load fatigue test of electric power steering system assembly of automobile, characterized by: The swing arm vertical plate, the rotating plate in rotational connection with the swing arm vertical plate, and two first connecting assemblies arranged on the rotating plate, the two first connecting assemblies being arranged to be respectively used for connecting an automobile electric power steering system assembly and a load device.

2. The swing arm tooling for single side load fatigue test of automobile electric power assisted steering system assembly of claim 1, wherein: The first connecting assembly comprises a tapered sleeve and a locking nut, and the tapered sleeve is installed on the rotating plate through the locking nut.

3. The swing arm tooling for single side load fatigue test of automobile electric power steering system assembly of claim 1, wherein: The rotating plate is installed on the swing arm vertical plate through a second connecting assembly, the second connecting assembly comprising a steering shaft, a positioning sleeve, a rolling bearing, and a bearing limiting sleeve arranged on the steering shaft, the bearing limiting sleeve being connected with the swing arm vertical plate, and the positioning sleeve being connected with the rotating plate.

4. The swing arm tooling for single side load fatigue test of automobile electric power steering system assembly of claim 3, wherein: The second connecting assembly further comprises a protective sleeve connected with the bearing limiting sleeve.

5. The swing arm tooling for single side load fatigue test of automobile electric power steering system assembly of claim 3, wherein: The second connecting assembly further comprises a bearing stop ring arranged on the steering shaft and used for axially limiting the rolling bearing.

6. The swing arm tooling for single side load fatigue test of automotive electric power assisted steering system assembly of claim 3, wherein: An axle sleeve is arranged on the swing arm vertical plate, and the steering shaft passes through the axle sleeve.

7. The swing arm tooling for single side load fatigue test of automobile electric power steering system assembly according to any one of claims 1 to 6, characterized in that: The swing arm vertical plate is arranged on a swing arm bottom plate, a support plate is arranged on the swing arm bottom plate, the support plate is connected with the swing arm vertical plate, and the support plate is provided with a plurality of support plates.

8. The swing arm tooling for single side load fatigue test of automotive electric power assisted steering system assembly of claim 7, wherein: The support plate is provided with two support plates.

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