CN216978201U

CN216978201U - Cam tensioning mandrel friction torque testing tool

Info

Publication number: CN216978201U
Application number: CN202220742243.2U
Authority: CN
Inventors: 陈瑞; 苏立民; 尚超
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-03-30
Filing date: 2022-03-30
Publication date: 2022-07-15
Anticipated expiration: 2032-03-30

Abstract

The utility model discloses a friction torque testing tool for a cam tensioning mandrel, which comprises a torque wrench head, wherein one end of the torque wrench head is integrally connected with a plug, and the torque wrench head is internally provided with a through groove in a through manner, so that the cam can be limited and can be tested at different positions by arranging the through groove which can be matched with the cam in the torque wrench head, and the square plug can be better limited in a vice, so that the torque wrench is more convenient to be matched with the vice to measure the friction torque of the cam.

Description

Cam tensioning mandrel friction torque testing tool

Technical Field

The utility model relates to the field of cam torque testing tools, in particular to a cam tensioning mandrel friction torque testing tool.

Background

The cam tension mandrel causes the friction torque between the mandrel tension shaft and the cam to be reduced due to the abrasion of the surface of the mandrel after long-term use. When the friction torque is reduced to a certain degree, the cam deflects around the central line of the tension mandrel in the grinding process, and after the tension mandrel and the cam generate relative deflection, batch waste products are inevitably generated, the structure of the grinding wheel is seriously damaged, and the whole grinding wheel is scrapped.

The spanner matched with the existing torque spanner is manufactured according to the size of a standard bolt head, and a special spanner with the shape and size capable of being matched with the outer surface of the cam is not provided, so that a tool capable of measuring the friction torque between the tension mandrel and the cam is urgently needed to solve the series of difficulties.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a tool for testing the friction torque of a cam tension mandrel, which aims to solve the problems in the background art.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a cam tight dabber friction torque testing instrument that rises, includes the moment spanner, the one end an organic whole of moment spanner is connected with the cock stem, the inside of moment spanner is link up and has been seted up logical groove.

Preferably, two groups of arc-shaped grooves are formed in the joint of the moment wrench head and the plug.

Preferably, the hardness of the material of the torque wrench head and the plug is HRC 42-45.

Preferably, the plug is a square column with one gradually changed end.

Preferably, the through groove is matched with the cam.

Compared with the prior art, the utility model has the beneficial effects that: this practicality is through set up the logical groove that can coincide with the cam in the inside of moment spanner, can not only carry on spacingly to the cam, can also test the cam of different positions, and square stopper post can be better spacing in the vice, makes the moment spanner of the utility model more conveniently cooperates the vice to carry out the friction torque measurement to the cam.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a front view of the present invention.

In the figure: 1. moment spanner, 2, logical groove, 3, the cock stem, 4, arc recess.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: the utility model provides a cam rises and tightly dabber friction torque testing instrument, includes moment spanner 1, and the one end an organic whole of moment spanner 1 is connected with cock stem 3, and the inside of moment spanner 1 link up and has seted up logical groove 2, and is outside through emboliaing logical groove 3 in the cam, makes things convenient for the vice to drive square cock stem 3 and rotates, makes moment spanner 1 rotate thereupon to make and lead to the friction between groove 3 and the cam, come to measure the friction torque of cam.

In this embodiment, two sets of arc grooves 4 have been seted up to the junction of moment spanner 1 and cock stem 3, can improve the tensile stress of moment spanner and cock stem 3 junction.

In the present embodiment, the hardness of the material of the torque wrench head 1 and the plug 3 is HRC42-45, which ensures that the hard top of the torque wrench can bear the measurement extreme value.

In this embodiment, the plug 3 is a square column, is convenient for insert the supporting vice in and test the cam to can prevent the plug 3 from taking place to rotate when testing and influence the measurement.

In this embodiment, logical groove 2 is identical with the cam to carry out spacingly to the cam, conveniently carry out the friction torque test to the cam.

The working principle is as follows: the utility model relates to a cam tension mandrel friction torque testing tool, which is characterized in that a square plug 3 is arranged in a vice, a through groove 2 is sleeved outside a group of cams matched with the square plug, the through groove 2 limits the cams, and the friction torque of the cams can be measured by rotating the vice.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the utility model can be made, and equivalents and modifications of some features of the utility model can be made without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides a cam rises and tightly dabber friction torque testing tool, includes moment spanner (1), its characterized in that: one end of the moment wrench head (1) is integrally connected with a plug column (3), and a through groove (2) is formed in the moment wrench head (1) in a penetrating mode.

2. The tool for testing the friction torque of the cam tension mandrel as claimed in claim 1, wherein: two groups of arc-shaped grooves (4) are formed at the joint of the moment wrench head (1) and the plug column (3).

3. The tool for testing the friction torque of the cam tension mandrel as claimed in claim 1, wherein: the material hardness of the moment wrench head (1) and the plug column (3) is HRC 42-45.

4. The tool for testing the friction torque of the cam tension mandrel as claimed in claim 1, wherein: the plug column (3) is a square column with one gradually changed end.

5. The tool for testing the friction torque of the cam tension mandrel as claimed in claim 1, wherein: the through groove (2) is matched with the cam.