Semitrailer axle fatigue test installation tool

Abstract

The utility model discloses a semitrailer axle fatigue test installation tool, which relates to the technical field of axle tests and comprises a main body unit, a fixing unit arranged in the main body unit and an installation unit arranged at the bottom of the main body unit. The fixing unit comprises an experiment through hole formed in the side wall of the main body unit, a fixing groove formed in the main body unit and communicated with the experiment through hole, a threaded shaft movably installed in the fixing groove and provided with two sections of threads with opposite rotation directions, a clamping piece arranged on the threaded shaft, and a driving motor installed at the input end of the threaded shaft. According to the semitrailer axle fatigue test installation tool, through the arrangement of the fixing unit and the installation unit, convenient installation of the axle fatigue test installation tool is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to axle test technical field, especially a kind of semi-trailer axle fatigue test installation tool. BACKGROUND

[0002] The axle of semi-trailer is usually located behind the gravity center of vehicle and connected with tractor through draw pin, and the axle of semi-trailer is the key component to bear the weight of whole vehicle and its goods, according to different semi-trailer types and transportation requirements, the number and layout of axle will be different, and currently in the manufacturing and processing of axle of semi-trailer, long-time fatigue test operation is needed for axle.

[0003] The current axle fatigue detection device is to install axle on rigid support device, and then to detect the fatigue resistance of axle by applying force, and the current semi-trailer axle fatigue test generally uses gantry fatigue testing machine, and crane hoisting or fixed crane installation beside testing machine is needed for installation during axle test.

[0004] In actual use, it is found that due to the structure of fatigue testing machine gantry, it is troublesome, time-consuming and laborious to use crane or crane, and the installation is relatively cumbersome, therefore, a semi-trailer axle fatigue test installation tool is proposed. UTILITY MODEL CONTENTS

[0005] The main purpose of the utility model is to provide a semi-trailer axle fatigue test installation tool, which solves the problem of troublesome operation, time-consuming and laborious and cumbersome installation caused by the structure of fatigue testing machine gantry by setting the fixing unit and the installation unit.

[0006] To achieve the above purpose, the utility model provides the following technical scheme:

[0007] A semi-trailer axle fatigue test installation tool, comprising a main unit, further comprising a fixing unit arranged in the main unit, and an installation unit arranged at the bottom of the main unit;

[0008] The fixing unit comprises an experimental through hole opened in the side wall of the main unit, a fixing groove opened in the inside of the main unit and communicated with the experimental through hole, a threaded shaft movably installed in the fixing groove and having two sections of threads with opposite rotation directions, a clamping piece arranged on the threaded shaft, and a driving motor installed at the input end of the threaded shaft;

[0009] The mounting unit comprises a mounting groove formed in the bottom wall of the main unit, a moving through hole formed in the side wall of the mounting groove, a moving rod movably penetrating and arranged in the moving through hole, a clamping seat arranged in the moving rod and located in the mounting groove, a stretching seat arranged at the other end of the moving rod, and a return spring sleeved on the side surface of the moving rod and fixedly connected at one end with the clamping seat and at the other end with the mounting groove.

[0010] Preferably, the main unit comprises a tool main body, and a moving handle arranged on the side wall of the tool main body.

[0011] Preferably, the main unit further comprises a fork mounting hole formed in the side wall of the tool main body.

[0012] Preferably, the clamping piece comprises a moving piece arranged on the side surface of the threaded shaft, and an arc-shaped clamping plate arranged on the side wall of the moving piece.

[0013] Preferably, the clamping piece has two groups, and the two groups of clamping pieces are symmetrically arranged about the bisector plane of the threaded shaft.

[0014] Preferably, the fixing unit further comprises a limiting washer arranged on the side wall of the fixing groove, and the limiting washer is sleeved on the side surface of the threaded shaft.

[0015] Preferably, the moving rod, the clamping seat, the stretching seat and the return spring form a whole structure, and the two groups of the whole structure of the moving rod, the clamping seat, the stretching seat and the return spring are symmetrically arranged about the mounting groove.

[0016] Compared with the prior art, the utility model has the advantages of:

[0017] In the utility model, when it is necessary to fix the semi-trailer axle of different sizes, one end of the semi-trailer axle is deeply inserted into the moving through hole, the threaded shaft is driven to rotate by the driving motor, the two moving pieces drive the arc-shaped clamping plates to move along the threaded shaft in the direction of approaching each other, and the inside wall of the arc-shaped clamping plate is stopped from abutting against the side wall of the semi-trailer axle, so that the clamping and fixing of the semi-trailer axle of different models are realized. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the three-dimensional structure schematic view of the utility model;

[0019] Figure 2 It is the main view structure schematic view of the utility model;

[0020] Figure 3 It is the utility model Figure 2 It is the section structure schematic view of A-A in the utility model;

[0021] Figure 4 It is the bottom view structure schematic view of the utility model;

[0022] Figure 5 It is the utility model Figure 2 It is the section structure schematic view of B-B in the utility model.

[0023] In the drawing:

[0024] 1, main unit;101, tool main body;102, mobile handle;103, fork mounting hole;

[0025] 2, fixed unit;201, threaded shaft;202, clamping piece;2021, moving piece;2022, arc clamping plate;203, drive motor;204, limit washer;

[0026] 3, installation unit;301, moving rod;302, clamping seat;303, stretching seat;304, return spring. Specific implementation

[0027] In order to make the technical means, creation features, purposes and effects realized by the utility model easy to understand, the utility model is further described below in combination with specific implementation manners. Embodiment

[0028] As Figure 1 , Figure 2 , Figure 3 , Figure 4 And Figure 5 Indicated, a kind of semi-trailer axle fatigue test installation tool, including main unit 1, still include the fixed unit 2 being arranged in the inside of main unit 1, and installation unit 3 being arranged in the bottom of main unit 1;

[0029] As Figure 5As shown, the fixing unit 2 includes an experimental through hole opened in the side wall of the main unit 1, a fixing groove opened in the inside of the main unit 1 and communicated with the experimental through hole, a threaded shaft 201 movably installed in the fixing groove and provided with two sections of threads in opposite directions, a clamping piece 202 arranged on the threaded shaft 201, and a driving motor 203 installed at the input end of the threaded shaft 201. When the driving motor 203 drives the threaded shaft 201 to rotate, the clamping piece 202 can move along the threaded shaft 201.

[0030] As shown, Figure 3 The mounting unit 3 includes a mounting groove opened in the bottom wall of the main unit 1, a moving through hole opened in the side wall of the mounting groove, a moving rod 301 movably penetrating through and arranged in the moving through hole, a clamping seat 302 installed at the inside of the mounting groove of the moving rod 301, a stretching seat 303 installed at the other end of the moving rod 301, and a return spring 304 sleeved on the side surface of the moving rod 301 and fixedly connected at one end with the clamping seat 302 and at the other end with the mounting groove. The arrangement of the return spring 304 facilitates the return of the clamping seat 302.

[0031] As shown, Figure 1 The main unit 1 includes a tool main body 101 and a moving handle 102 installed at the side wall of the tool main body 101. The arrangement of the moving handle 102 facilitates manual lifting of the tool main body 101.

[0032] As shown, Figure 2 The main unit 1 further includes a fork mounting hole 103 opened in the side wall of the tool main body 101. The arrangement of the fork mounting hole 103 facilitates insertion and movement of the forklift.

[0033] As shown, Figure 5 The clamping piece 202 includes a moving piece 2021 installed at the side surface of the threaded shaft 201 and an arc-shaped clamping plate 2022 installed at the side wall of the moving piece 2021. When the threaded shaft 201 rotates, the moving piece 2021 can drive the arc-shaped clamping plate 2022 to move along the threaded shaft 201.

[0034] As shown, Figure 5 The clamping piece 202 has two groups, and the two groups of clamping pieces 202 are symmetrically arranged about the bisector plane of the threaded shaft 201, thereby realizing stable clamping of the axle of the semitrailer.

[0035] As shown, Figure 5 The fixing unit 2 further includes a limiting washer 204 installed at the side wall of the fixing groove and sleeved on the side surface of the threaded shaft 201. The arrangement of the limiting washer 204 avoids contact and collision between the moving piece 2021 and the side wall of the fixing groove during movement of the moving piece 2021 along the threaded shaft 201.

[0036] When it is necessary to fix the semi-trailer axle of different sizes, one end of the semi-trailer axle is inserted into the experimental through hole, the threaded shaft 201 is driven to rotate by the driving motor 203, so that the two moving pieces 2021 drive the arc-shaped clamping plates 2022 to move along the threaded shaft 201 in the direction of approaching each other, and stop when the inner side wall of the arc-shaped clamping plate 2022 is in close contact with the side wall of the semi-trailer axle, so that the clamping and fixing of the semi-trailer axle of different models are realized. Embodiment

[0037] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , a semi-trailer axle fatigue test installation tool includes a main unit 1, a fixing unit 2 arranged inside the main unit 1, and an installation unit 3 arranged at the bottom of the main unit 1.

[0038] As shown in Figure 5 , the fixing unit 2 includes an experimental through hole opened in the side wall of the main unit 1, a fixing groove opened in the inside of the main unit 1 and communicated with the experimental through hole, a threaded shaft 201 movably installed in the fixing groove and having two sections of threads with opposite rotation directions, a clamping piece 202 arranged on the threaded shaft 201, and a driving motor 203 installed at the input end of the threaded shaft 201. When the threaded shaft 201 is driven to rotate by the driving motor 203, the clamping piece 202 can move along the threaded shaft 201.

[0039] As shown in Figure 3 , the installation unit 3 includes an installation groove opened in the bottom wall of the main unit 1, a moving through hole opened in the side wall of the installation groove, a moving rod 301 movably penetrating through and arranged in the moving through hole, a clamping seat 302 installed at the part of the moving rod 301 inside the installation groove, a stretching seat 303 installed at the other end of the moving rod 301, and a return spring 304 sleeved on the side surface of the moving rod 301 and fixedly connected at one end with the clamping seat 302 and at the other end with the installation groove. The arrangement of the return spring 304 facilitates the return and restoration of the clamping seat 302.

[0040] As shown in Figure 1 , the main unit 1 includes a tool main body 101 and a moving handle 102 installed at the side wall of the tool main body 101. The arrangement of the moving handle 102 facilitates the manual lifting of the tool main body 101.

[0041] As shown in Figure 2 , the main unit 1 further includes a fork mounting hole 103 opened in the side wall of the tool main body 101. The arrangement of the fork mounting hole 103 facilitates the insertion and movement of the forklift.

[0042] As shown in Figure 5As shown, the clamping member 202 includes a movable member 2021 installed on the circumferential side of the threaded shaft 201, and an arc-shaped clamping plate 2022 installed on the side wall of the movable member 2021. When the threaded shaft 201 rotates, the movable member 2021 can drive the arc-shaped clamping plate 2022 to move along the threaded shaft 201.

[0043] like Figure 5 As shown, there are two sets of clamping members 202, and the two sets of clamping members 202 are symmetrically arranged about the bisecting plane of the threaded shaft 201, thereby achieving stable clamping of the semi-trailer axle.

[0044] like Figure 5 As shown, the fixing unit 2 also includes a limiting washer 204 installed on the side wall of the fixing groove, and the limiting washer 204 is sleeved on the circumferential side of the threaded shaft 201. The setting of the limiting washer 204 avoids the moving part 2021 from contacting and colliding with the side wall of the fixing groove during the movement of the threaded shaft 201.

[0045] like Figure 4 As shown, the integral structure consisting of the moving rod 301, the locking seat 302, the tension seat 303, and the return spring 304 is divided into two sets. The integral structure consisting of the two sets of moving rod 301, locking seat 302, tension seat 303, and return spring 304 is symmetrically arranged about the mounting groove, thereby achieving stable installation with the gantry mounting block of the fatigue testing machine.

[0046] When the axle fatigue test fixture needs to be installed, the driver inserts the forklift forks into the fork mounting holes 103, moves the fixture body 101 to the fatigue testing machine platform, pulls the tension seat 303 outward, causing the moving rod 301 to move the locking seat 302 away from the mounting slot and compress the return spring 304. After the mounting slot at the bottom of the fixture body 101 is engaged with the mounting block on the gantry of the fatigue testing machine, the force applied to the tension seat 303 is removed. Under the elastic force of the return spring 304, the locking seat 302 engages with the locking slot on the mounting block on the gantry of the fatigue testing machine, thus realizing the convenient installation of the axle fatigue test fixture.

[0047] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A semitrailer axle fatigue test mounting tool comprising a main unit (1), characterized in that, The fixing unit (2) is arranged inside the main unit (1), and the mounting unit (3) is arranged at the bottom of the main unit (1); The fixing unit (2) comprises an experimental through hole arranged in the side wall of the main unit (1), a fixing groove arranged in the inside of the main unit (1) and communicated with the experimental through hole, a threaded shaft (201) movably arranged in the fixing groove and provided with two sections of threads in opposite directions, a clamping piece (202) arranged on the threaded shaft (201), and a driving motor (203) arranged at the input end of the threaded shaft (201); The mounting unit (3) comprises a mounting groove arranged in the bottom wall of the main unit (1), a moving through hole arranged in the side wall of the mounting groove, a moving rod (301) movably arranged in the moving through hole, an engaging seat (302) arranged at the part of the moving rod (301) in the mounting groove, a stretching seat (303) arranged at the other end of the moving rod (301), and a return spring (304) sleeved on the side surface of the moving rod (301) and fixedly connected with the engaging seat (302) at one end and fixedly connected with the mounting groove at the other end.

2. The fatigue test mounting tool for a semi-trailer axle according to claim 1, characterized in that: The main unit (1) comprises a tool main body (101), and a moving handle (102) arranged at the side wall of the tool main body (101).

3. The fatigue test mounting tool for a semi-trailer axle according to claim 2, characterized in that: The main unit (1) further comprises a fork mounting hole (103) arranged in the side wall of the tool main body (101).

4. The fatigue test mounting tool for a semi-trailer axle according to claim 3, characterized in that: The clamping piece (202) comprises a moving piece (2021) arranged on the side surface of the threaded shaft (201), and an arc-shaped clamping plate (2022) arranged at the side wall of the moving piece (2021).

5. The fatigue test mounting tool for a semi-trailer axle according to claim 4, characterized in that: The clamping piece (202) has two groups, and the two groups of clamping pieces (202) are symmetrically arranged about the bisector of the threaded shaft (201).

6. The fatigue test mounting tool for a semi-trailer axle according to claim 1, characterized in that: The fixing unit (2) further comprises a limiting gasket (204) arranged at the side wall of the fixing groove, and the limiting gasket (204) is sleeved on the side surface of the threaded shaft (201).

7. The fatigue test mounting tool for a semi-trailer axle according to claim 2, characterized in that: The moving rod (301), the engaging seat (302), the stretching seat (303) and the return spring (304) are symmetrically arranged about the mounting groove.

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