CN212621981U

CN212621981U - Torsion test combination device for torsion shaft

Info

Publication number: CN212621981U
Application number: CN202021366700.XU
Authority: CN
Inventors: 彭凌波; 梅钊; 谭正群; 李伟; 彭毅
Original assignee: Chongqing Wangjiang Industry Co Ltd
Current assignee: Chongqing Wangjiang Industry Co Ltd
Priority date: 2020-07-13
Filing date: 2020-07-13
Publication date: 2021-02-26
Anticipated expiration: 2030-07-13

Abstract

The utility model discloses a torsion shaft torsion test composite set avoids putting anchor clamps and operates afterburning adjustment on the hydraulic press, can realize torsion experiment of torsion shaft more than two simultaneously with the compression body through arranging the torsion body that many sets of correspond. Whether the torsion shaft is qualified or not can be accurately and visually determined, the bearing capacity of the material is exerted to the maximum extent, and the detection efficiency is improved.

Description

Torsion test combination device for torsion shaft

Technical Field

The utility model belongs to mechanical transmission torsion test device, concretely relates to torsion shaft torsion test composite set.

Background

The torsion shaft is a straight shaft having torsional elasticity, and is often designed between the vehicle body and the frame for resisting the side rolling vibration of the vehicle body. The torsion shaft is usually required to be subjected to 50% of clockwise or anticlockwise torsion tests, an L mark is marked on the clockwise end face, an R mark is marked on the anticlockwise end face, and the torsion shaft is firstly pre-twisted once according to the marking direction, wherein the pre-twisting angle beta is larger than the pre-twisting angle beta_{Preparation of}Hold α ° for m minutes. The torsion shaft was scribed at its shank after t1 hours of pre-torque off-load. For each pre-twisted shaft, the twisting angle beta is determined according to the twisting direction_QuietAt α °, the residual strain, measured after t3 hours at t2, must not be greater than α 1 °. Therefore, simultaneous torsion testing and testing of a set of torsion shafts requires the design and manufacture of associated fixtures and testing aids.

Disclosure of Invention

The utility model discloses a torsion shaft torsion test composite set realizes under the simple structure, torsion shaft measurement test's convenience.

The utility model discloses a torsion test combination device of a torsion shaft, which comprises a clamp body, a pressing body, a torsion body, a jack seat, a power frame, a fine adjustment body, a jack and the torsion shaft;

the clamp body is fixedly provided with a pressing body and a twisting body;

one end of the torsion body is provided with a torsion spline sleeve, and the other end of the torsion body is connected with the bottom end of the jack seat; the top end of the jack seat is fixed with the jack; the top of the jack is hinged with a rotary seat on the power frame, the lower end of the power frame is respectively provided with a first clamping pin and a second clamping pin, and the first clamping pin and the second clamping pin are fixedly clamped with the fixture body;

the pressing spline sleeve at one end of the pressing body is opposite to the torsion spline sleeve, and the other end of the pressing body is contacted with the top of the fine adjustment body;

when the torsion shaft works, two ends of the torsion shaft are sleeved in the torsion spline sleeve and the compression spline sleeve respectively; the jack drives the jack seat to move downwards so as to drive the torsion body to rotate around the axis of the torsion spline sleeve and further drive the torsion shaft to twist around the axis; the other end of the torsion shaft drives the pressing body to rotate through the spline sleeve, the pressing body is blocked by the fine adjustment body, and the torsion body continuously drives one end of the torsion shaft combined with the torsion spline sleeve to continue torsion.

Furthermore, the fine adjustment body comprises a lifting shaft, a cylinder, a bearing and a supporting shaft; the lifting shaft lifts and supports the bearing, and the upper end of the bearing is fixedly provided with a supporting shaft and an external sleeve.

The utility model discloses beneficial technological effect does: the utility model discloses a torsion shaft torsion test composite set avoids putting anchor clamps and operates afterburning adjustment on the hydraulic press, can realize torsion experiment of torsion shaft more than two simultaneously with the compression body through arranging the torsion body that many sets of correspond. Whether the torsion shaft is qualified or not can be accurately and visually determined, the bearing capacity of the material is exerted to the maximum extent, and the detection efficiency is improved.

Drawings

FIG. 1 is a front view of the twist-axle;

FIG. 2 is a front view of the torsion test assembly of the present invention;

FIG. 3 is a top view of the torsion testing assembly of the present invention;

FIG. 4 is a front view of the clamp body of the present invention;

fig. 5 is a view of the torsion bar in a fixed position in which it enters the initial torsion position;

fig. 6 is a state diagram of the torsion shaft of the present invention in the extreme torsion position;

fig. 7 is a schematic diagram of the fine adjustment and the pressing of the pressing body of the present invention;

FIG. 8 is a structural view of the power frame of the present invention;

FIG. 9 is a view showing the structure of the fine adjustment body of the present invention;

fig. 10 is a schematic diagram illustrating detection after torsion of the torsion shaft according to the present invention;

FIG. 11 is a structural view of the jack seat of the present invention;

FIG. 12 is a top view of FIG. 11;

FIG. 13 is a structural view of the twisting body of the present invention;

fig. 14 is a top view of fig. 13.

Detailed Description

The present invention will be described in detail with reference to fig. 1 to 14.

The utility model discloses a torsion test combination device of a torsion shaft, which comprises a clamp body 1, a pressing body 2, a torsion body 3, a jack seat 4, a power frame 5, a fine adjustment body 6, a jack 7 and the torsion shaft 8;

the clamp body 1 is processed by heat treatment tempering after welding of all parts, and then a plurality of supporting planes, end faces, four coaxial holes and motion angle limiting holes are processed; the pressing body 2 and the twisting body 3 are arranged in the hole of the clamp body 1 and can flexibly rotate; then the first clamping foot 5-1 and the second clamping foot 5-2 on the two power frames 5 are clamped on the fixture body 1.

One end of the twisting body 3 is a twisting spline sleeve 3-1, and the other end is connected with the bottom end of the jack seat 4 through a pin 1-1; the top end of the jack seat 4 is fixed with the jack 7; a hydraulic support rod 7-1 at the top of the jack is hinged with a rotary seat 5-3 on a power frame 5, the lower end of the power frame 5 is respectively provided with a first clamping pin 5-1 and a second clamping pin 5-2, and the first clamping pin 5-1 and the second clamping pin 5-2 are fixedly clamped with a clamp body 1; the jack 7 is shaken to enable a hydraulic support rod 7-1 at the top of the jack, which can be stretched, of the jack to be in contact with an inner hole of the rotary seat 5-3, the jack 7 is shaken ceaselessly, the hydraulic support rod 7-1 extends out ceaselessly, the power frame 5 is clamped on the clamp body 1 and cannot move upwards, only the jack seat 4 moves downwards, the torsion body 3 rotates downwards, and the torsion spline sleeve 3-1 drives the torsion shaft 8 to twist.

The pressing spline housing 2-1 at one end of the pressing body 2 is opposite to the torsion spline housing 3-1, and the other end of the pressing body is contacted with the top of the fine adjustment body 6; the fine adjustment body 6 comprises a lifting shaft 6-1, a barrel 6-2, a bearing 6-3 and a supporting shaft 6-4; the lifting shaft 6-1 lifts and supports the bearing 6-3, the upper end of the bearing 6-3 is fixedly provided with a supporting shaft 6-4 and an outer sleeve 6-2. The other end of the torsion shaft 8 drives the pressing body 2 to rotate through the pressing spline housing 2-1, but is blocked by the fine adjustment body 6, so that the torsion body 3 continues to rotate, and the end of the torsion shaft 8 combined with the pressing spline housing 2-1 is driven to continue to twist. And after the torsion shaft is twisted to a required angle, the handle 1-2 is inserted, the hydraulic support rod 7-1 retracts to the original state after the hydraulic pressure is released, the jack 7 is removed, and the torsion shaft torsion test combination device is taken to another set for use.

And starting the test, marking a mark in the torsion test direction on the end face of the torsion shaft 8, wherein the mark is L in the clockwise direction, the mark is R in the counter clock direction, and each batch of parts are 50% in the clockwise direction and the counter clockwise direction respectively.

The two ends of the torsion shaft 8 with the end surface marked as R are respectively sleeved in the torsion spline housing 3-1 and the compression spline housing 2-1, the handle is required to be inserted into the upper surface hole, when the torsion body surface contacts the handle shaft, if the torsion shaft cannot pass through, the height of the fine adjustment body is adjusted. Then the handle 1-2 is shaken to rotate the twisting body to the twisting angle beta_{Preparation of}When the angle is alpha degree, the handle 1-2 is inserted into the lower hole, the twisting body 8 contacts the handle shaft, and the force application is stopped. And taking out the jack 7, placing the jack into another power frame, respectively sleeving two ends of a torsion shaft 8 with the end surface marked as L into the torsion spline housing 3-1 and the compression spline housing 2-1, and requiring to insert the handle 1-2 into the upper surface hole, and slightly adjusting the height of the fine adjustment body if the torsion shaft cannot pass through when the torsion body surface contacts the handle shaft. Then the handle is shaken to rotate the twisting body to a twisting angle beta_{Preparation of}When the angle is alpha degree, the handle is inserted into the lower hole, the surface of the twisting body contacts the handle shaft, and the force application is stopped. And (5) taking out the jack and keeping for m minutes. The twist body 8 after t1 hours of pre-twist off load was checked for acceptability by marking at its stem. After checking the qualified twisting body 8, the twisting angle beta is determined according to the twisting direction and the method_QuietAt α °, the residual strain, measured after t3 hours at t2, must not be greater than α 1 °.

The utility model discloses a composite set for torsion-beam torsion test, its compact structure uses the operation also convenient, reliable, avoids putting heavy anchor clamps and operates afterburning adjustment on the hydraulic press. Whether the torsion shaft is qualified or not can be accurately and visually determined, the bearing capacity of materials is exerted to the maximum extent, if four sets of clamps are made, eight torsion shafts can be tested simultaneously, and the experiment efficiency is improved.

Claims

1. Torsion-beam torsion test composite set, its characterized in that: comprises a clamp body (1), a pressing body (2), a twisting body (3), a jack seat (4), a power frame (5), a fine adjustment body (6), a jack (7) and a torsion shaft (8);

the clamp body (1) is fixedly provided with a pressing body (2) and a twisting body (3);

one end of the twisting body (3) is provided with a twisting spline sleeve (3-1), and the other end is connected with the bottom end of the jack seat (4); the top end of the jack seat (4) is fixed with the jack (7); the top (7-1) of the jack is hinged with a rotary seat (5-3) on a power frame (5), the lower end of the power frame (5) is respectively provided with a first clamping pin (5-1) and a second clamping pin (5-2), and the first clamping pin (5-1) and the second clamping pin (5-2) are fixedly clamped with a clamp body (1);

the pressing spline sleeve (2-1) at one end of the pressing body (2) is opposite to the torsion spline sleeve (3-1), and the other end of the pressing body is contacted with the top of the fine adjustment body (6);

when the torsion shaft works, two ends of the torsion shaft (8) are sleeved into the torsion spline sleeve (3-1) and the compression spline sleeve (2-1) respectively; the jack (7) drives the jack seat (4) to move downwards so as to drive the torsion body (3) to rotate around the axis of the torsion spline sleeve (3-1), and further drive the torsion shaft (8) to twist around the axis; the other end of the torsion shaft (8) drives the pressing body (2) to rotate through the spline sleeve (2-1), and the pressing body (2) is blocked by the fine adjustment body (6), so that the torsion body (3) continuously drives one end of the torsion shaft (8) combined with the torsion spline sleeve (3-1) to continuously twist.

2. The torsion-axle torsion test combination as recited in claim 1, wherein: the fine adjustment body (6) comprises a lifting shaft (6-1), a cylinder (6-2), a bearing (6-3) and a supporting shaft (6-4); the lifting shaft (6-1) lifts and supports the bearing (6-3), the upper end of the bearing (6-3) is fixedly provided with a supporting shaft (6-4) and an external sleeve (6-2).