CN-224216290-U - Universal shaft test device

CN224216290UCN 224216290 UCN224216290 UCN 224216290UCN-224216290-U

Abstract

The utility model relates to the technical field of universal shaft testing, and particularly discloses a universal shaft testing device which comprises an upper pressing plate and a lower supporting plate, wherein the upper pressing plate is positioned above the lower supporting plate, a second groove is formed in the middle of the lower end of the upper pressing plate, second placing grooves are formed in the middle of the two sides of the bottom of the second groove at the lower end of the upper pressing plate, a first groove is formed in the middle of the top end of the lower supporting plate, and a first placing groove is formed in the middle of the two sides of the top of the first groove at the top end of the lower supporting plate. And applying pressure to the mandrel and the universal shaft through external pressure equipment and devices until the profile of the universal shaft is broken, so that a universal shaft shearing test is completed, and finally, the performance test verification of the universal shaft is completed. The whole test device is simple in structure, convenient to install and detach during use, low in cost and high in practicability.

Inventors

KANG HAO
LI LI
Wan Bingfeng
CHEN WEILIN
CHENG HUIMING

Assignees

国营芜湖机械厂

Dates

Publication Date: 20260508
Application Date: 20250605

Claims (5)

1. The utility model provides a cardan shaft test device, includes top board (1) and lower backup pad (2), its characterized in that, top board (1) is located the top of lower backup pad (2), and the lower extreme middle part of top board (1) is provided with second recess (7), and the lower extreme of top board (1) all is provided with second standing groove (6) in second recess (7) bottom both sides middle part, and the top middle part of lower backup pad (2) is provided with first recess (5), and the top of lower backup pad (2) all is provided with first standing groove (8) in the top both sides middle part of first recess (5).
2. The universal shaft testing device according to claim 1, wherein after the upper pressing plate (1) is covered above the lower supporting plate (2), the second groove (7), the second placing groove (6), the first groove (5) and the first placing groove (8) form a limiting cavity for testing the universal shaft (4).
3. The universal shaft test device according to claim 2, wherein the cross sections of the first groove (5) and the second groove (7) are rectangular, and the cross sections of the first placing groove (8) and the second placing groove (6) are circular arc.
4. A cardan shaft testing device according to claim 3, characterised in that the first recess (5) has an inner depth greater than the inner depth of the first recess (8) and the second recess (7) has an inner depth greater than the inner depth of the second recess (6).
5. The universal shaft test device according to claim 1, wherein the upper pressing plate (1) and the lower supporting plate (2) are both in a cubic arrangement, and the top end section of the upper pressing plate (1) and the bottom end section of the lower supporting plate (2) are the same in size.

Description

Universal shaft test device Technical Field The utility model relates to a test device, in particular to a universal shaft test device, and belongs to the technical field of universal shaft tests. Background The cardan shaft needs to be subjected to a shear test before the finished product is delivered to verify whether the performance of the cardan shaft meets the use requirements. The existing test equipment cannot directly perform a shear test on the universal shaft, the device is needed to be used for positioning and fixing the universal shaft, and then pressure is applied to the universal shaft through the test equipment and the device, so that the related shear test is completed. Therefore, a special universal shaft test tool is formulated according to the use requirement of the shear test equipment and the product structure of the universal shaft, so that the performance verification of the universal shaft is completed, and the use requirement of the universal shaft is ensured. Disclosure of utility model Aiming at the problems in the prior art, the utility model provides a universal shaft test device. The aim of the utility model can be achieved by the following technical scheme: The utility model provides a cardan shaft test device, includes top board and lower backup pad, the top board is located the top of lower backup pad, and the lower extreme middle part of top board is provided with the second recess, and the lower extreme of top board all is provided with the second standing groove in second recess bottom both sides middle part, and the top middle part of lower backup pad is provided with first recess, and the top of lower backup pad all is provided with first standing groove in the top both sides middle part of first recess. Optionally, after the top board lid closes in the top of lower backup pad, second recess, second standing groove, first recess and first standing groove form the spacing chamber that is used for the cardan shaft test. Optionally, the cross sections of the first groove and the second groove are rectangular, and the cross sections of the first placing groove and the second placing groove are circular arc. Optionally, the first groove has an inner depth greater than the inner depth of the first placement groove, and the second groove has an inner depth greater than the inner depth of the second placement groove. Optionally, the upper pressing plate and the lower supporting plate are both cube-shaped, and the top end section of the upper pressing plate and the bottom end section of the lower supporting plate are the same in size. The utility model has the beneficial effects that: The test device formulates a tool design scheme according to the test requirement of the universal shaft, simultaneously combines the appearance structure of the universal shaft, places the universal shaft on the lower support plate by two cylindrical surfaces at the left end and the right end of the universal shaft, adopts profiling design for the part of the lower support plate, can realize the limit and fixation of the universal shaft in the test process, then inserts and installs the mandrel through a through hole in the middle of a universal shaft product, and simultaneously, the upper pressing plate is provided with two circular arc surfaces to be matched with the outer circle of the mandrel, so that the installation of the universal shaft and the test device can be completed accurately. And applying pressure to the mandrel and the universal shaft through external pressure equipment and devices until the profile of the universal shaft is broken, so that a universal shaft shearing test is completed, and finally, the performance test verification of the universal shaft is completed. The whole test device is simple in structure, convenient to install and detach during use, low in cost and high in practicability. Drawings The present utility model is further described below with reference to the accompanying drawings for the convenience of understanding by those skilled in the art. FIG. 1 is a schematic view of the installation structure of the universal shaft and the device of the utility model. Fig. 2 is a side view of fig. 1 of the present utility model. FIG. 3 is a schematic view of the installation structure of the universal shaft on the lower support plate. FIG. 4 is a schematic view of the structure of the upper platen of the present utility model. FIG. 5 is a schematic view of a lower support plate structure according to the present utility model. FIG. 6 is a schematic view of a cardan shaft according to the present utility model. Fig. 7 is a schematic diagram of the mandrel structure of the present utility model. In the figure, 1, an upper pressing plate, 2, a lower supporting plate, 3, a mandrel, 4, a universal shaft, 5, a first groove, 6, a second placing groove, 7, a second groove, 8, a first placing groove and 9, and perforation are arranged. Detailed Description The technical soluti