CN217505080U

CN217505080U - Device for checking large-torque wrench

Info

Publication number: CN217505080U
Application number: CN202221702490.6U
Authority: CN
Inventors: 朱功超; 贾海龙
Original assignee: Loteem Beijing Rail Transit Technology Co Ltd
Current assignee: Loteem Beijing Rail Transit Technology Co Ltd
Priority date: 2022-07-04
Filing date: 2022-07-04
Publication date: 2022-09-27
Anticipated expiration: 2032-07-04

Abstract

The utility model discloses a device for checking a large-torque wrench, which comprises a bearing body, a handle fixing component, a mounting seat, a bracket, a loading mechanism and a torque checking instrument, wherein the mounting seat is of a Z-shaped structure, the loading mechanism and the torque checking instrument are both fixed on the mounting seat, and the loading mechanism is electrically connected with the torque checking instrument; the bearing body comprises an upper plate and a lower plate which are connected in a laminating mode through dovetail grooves, the upper plate is fixed on the mounting seat through at least 2 supports, 2 parallel inverted T-shaped grooves are formed in the upper surface of the upper plate, 2T-shaped rotating nuts are arranged at the bottom of the handle fixing assembly, and the T-shaped rotating nuts are embedded into the inverted T-shaped grooves. The top of the handle fixing component is provided with 2 upright posts in parallel. The upper surface of the tail end of the lower plate is the same as the plate structure. The number of the brackets is 12. The device provided by the utility model for the big torque wrench of check-up, easy operation is quick, has improved work efficiency and personnel's security.

Description

Device for checking large-torque wrench

Technical Field

The utility model relates to a spanner check-up technical field specifically is a device for checking up large torque wrench.

Background

Along with the harmonious motor train unit enters an advanced repair batch overhaul stage, the motor train unit is overhauled more comprehensively, and the overhaul quantity of parts is larger. In order to ensure the safe operation of the motor train unit, all fastening bolts on the motor train unit must be ensured not to be loosened, and the torque clamping control in the assembling and overhauling processes is improved.

At present, the bolt fastening torque related on the motor train unit is as small as 1Nm and as large as 3000 Nm. The existing torque checking device in the current market can only meet the checking requirement of about 2000Nm, and the self deformation of the checking device is overlarge when 3000Nm torque checking is carried out, so that the checking result is influenced on one hand, and on the other hand, the checking personnel can be injured due to the damaged equipment. Therefore, the requirement of large-torque calibration on the overall rigidity and strength of the calibration equipment or device is very high, and the existing equipment of a user cannot meet the calibration of large torque, so that a loading device capable of bearing large-torque calibration is urgently needed to meet the requirement of the user on-site calibration.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a can satisfy current harmonious EMUs big torque wrench's calibration equipment, does not reduce the check-up precision of spanner, and equipment self bearing capacity and security improve greatly simultaneously, intensity of labour when reducing personnel's loading simultaneously. The utility model provides a following technical scheme:

a device for checking a large-torque wrench comprises a bearing body, a handle fixing component, a mounting seat, a support, a loading mechanism and a torque checking instrument, wherein the mounting seat is of a Z-shaped structure, the loading mechanism and the torque checking instrument are both fixed on the mounting seat, and the loading mechanism is electrically connected with the torque checking instrument; the bearing body comprises an upper plate and a lower plate which are connected in a laminating manner by arranging dovetail grooves, the upper plate is fixed on the mounting seat through at least 2 supports, 2 parallel inverted T-shaped grooves are formed in the upper surface of the upper plate, 2T-shaped rotating nuts are arranged at the bottom of the handle fixing component, and the T-shaped rotating nuts are embedded into the inverted T-shaped grooves.

Further, 2 stand columns are arranged on the top of the handle fixing component in parallel.

Further, the upper surface of the lower plate end is the same as the plate structure.

Further, the number of the brackets is 12.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model provides a device for checking up big torque wrench, easy operation is quick, and bearing capacity is strong, satisfies the check-up demand of the on-the-spot big torque wrench of user, has effectively improved work efficiency and personnel security, improves EMUs bolt moment of torsion card accuse ability greatly simultaneously.

Drawings

Fig. 1 is an expanded schematic view of the device for checking a large torque wrench of the present invention;

fig. 2 is a cross-sectional view of the load bearing body of the present invention;

FIG. 3 is a schematic view of the handle attachment assembly of the present invention;

fig. 4 is a schematic structural diagram of the device for checking a large torque wrench of the present invention.

In the figure: 1. a load-bearing body; 11. an upper plate; 12. a lower layer plate; 13. a T-shaped groove is inverted; 2. a handle securing assembly; 21. a T-shaped swivel nut; 22. a column; 3. a mounting seat; 4. a support; 5. a loading mechanism; 6. a torque calibrator.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

A device for checking a large-torque wrench is shown in figures 1-4 and comprises a bearing body 1, a handle fixing component 2, a mounting seat 3, a support 4, a loading mechanism 5 and a torque checking instrument 6, wherein the mounting seat 3 is of a Z-shaped structure, the loading mechanism 5 and the torque checking instrument 6 are both fixed on the mounting seat 3, and the loading mechanism 5 is electrically connected with the torque checking instrument 6; the bearing body 1 comprises an upper plate 11 and a lower plate 12 which are connected in a laminating way by arranging dovetail grooves, the upper plate 11 is embedded with the lower plate 12, and the lower plate 12 can be drawn out from the upper plate 11 along the dovetail grooves and retracted, so that on one hand, the length of the bearing body 1 is prolonged, and the bearing body is convenient to adapt to the lengths of different wrench handles; on the other hand, the lower plate 12 is partially drawn out, and the dovetail groove structure can improve the strength of the bearing body so as to adapt to the calibration of a large-torque wrench. The upper plate 11 is fixed on the mounting base 3 through at least 2 supports 4, 2 parallel inverted T-shaped grooves 13 are formed in the upper surface of the upper plate 11, 2T-shaped rotating nuts 21 are arranged at the bottom of the handle fixing component 2, and the T-shaped rotating nuts 21 are embedded into the inverted T-shaped grooves 13.

Specifically, the top of the handle fixing component 2 is provided with 2 upright posts 22 in parallel.

Specifically, the upper surface of the end of the lower plate 12 is the same as the upper plate 11.

The number of the brackets 4 is 12.

Preferably, the bottom of the lower plate 12 is provided with a limit pin, and the lower plate 12 is drawn out for a certain length and then interferes with the mounting base 3 for limiting, so as to prevent the lower plate from being drawn out.

The mounting seat 3 is a Z-shaped supporting seat welded with a rectangular square tube, is connected with the bearing body 1 and the loading mechanism 5, and converts the load of the wrench for checking into internal force, thereby reducing the strength requirement of the mounting seat 3 and external connection. Preferably, the loading structure 6 is a speed reducer and is fixed on the mounting base 3 through bolts.

The handle fixing member 2 can be freely moved at the upper surface of the upper deck 11 and the end of the lower deck 12 to meet the requirements of checking wrenches of different lengths.

The handle fixing component 2 can freely move on the upper part of the bearing body 1 so as to support and limit the spanner when the spanner with different lengths is checked. Meanwhile, two T-shaped clamping grooves are formed in the contact surface of the handle fixing component 2 and the bearing body 1, so that the wrench supporting component 2 can move conveniently, and the bottom of the wrench supporting component is provided with an inverted T-shaped protrusion, so that the T-shaped clamping grooves can be clamped conveniently. Preferably, the contact surface of the handle fixing component 2 and the upper part of the bearing body 1 is provided with a polytetrafluoroethylene plate which plays a role of reducing friction when moving.

Install loading mechanism 5 with moment of torsion check gauge 6 on, then be connected spanner and moment of torsion check gauge 6, the adjustment bears the weight of the specific position of the extension length of lower floor plate 12 of body 1 and spanner subassembly simultaneously, will wait to check that the spanner is put the back, through the check-up of artifical rotation loading mechanism 5 realization spanner moment of torsion.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A device for checking a large-torque wrench is characterized by comprising a bearing body (1), a handle fixing component (2), a mounting seat (3), a support (4), a loading mechanism (5) and a torque checking instrument (6), wherein the mounting seat (3) is of a Z-shaped structure, the loading mechanism (5) and the torque checking instrument (6) are both fixed on the mounting seat (3), and the loading mechanism (5) is electrically connected with the torque checking instrument (6); the bearing body (1) comprises an upper plate (11) and a lower plate (12) which are connected in a laminating mode through dovetail grooves, the upper plate (11) is fixed on the mounting base (3) through at least 2 supports (4), 2 parallel inverted T-shaped grooves (13) are formed in the upper surface of the upper plate (11), 2T-shaped rotating nuts (21) are arranged at the bottom of the handle fixing component (2), and the T-shaped rotating nuts (21) are embedded into the inverted T-shaped grooves (13).

2. Device for verifying a high torque wrench according to claim 1, characterized in that 2 uprights (22) are arranged in parallel on top of the handle fixing assembly (2).

3. A device for verifying a high torque wrench as claimed in claim 1, characterized in that the upper surface of the lower plate (12) end is of the same construction as the upper plate (11).

4. Device for verifying a high torque wrench according to claim 1, characterized in that the number of said brackets (4) is 12.