CN214702607U

CN214702607U - Hydraulic wrench calibrating instrument with reaction arm angle adjusting function

Info

Publication number: CN214702607U
Application number: CN202120405310.7U
Authority: CN
Inventors: 宋新潮; 李华栋; 徐峰; 严军辉; 张振平
Original assignee: Avic Shaanxi Dongfang Aviation Instrument Co ltd
Current assignee: Avic Shaanxi Dongfang Aviation Instrument Co ltd
Priority date: 2021-02-24
Filing date: 2021-02-24
Publication date: 2021-11-12
Anticipated expiration: 2031-02-24

Abstract

The utility model discloses a hydraulic wrench examines and determine appearance with counter-force arm angle regulatory function, digital display appearance including examination operation panel, counter-force arm dog and spanner grafting unit and external connection, counter-force arm dog includes fixing base, rotatory dog and adjustment cushion, and the fixing base is a vertical cylinder of fixing on examination operation panel mesa, and rotatory dog is a suit on the cylinder and rather than forming sliding fit's rigid component, and the one end of rotatory dog atress is the cuboid, and the adjustment cushion is independent part, is that thickness is 10 ~ 30 mm's cuboid. The utility model provides a rotatory dog can the level rotate, in the testing process, the stress surface of rotatory dog can be adjusted to the holding surface laminating state with the hydraulic torque wrench that awaits measuring, can not cause any damage to its contact surface when detecting big moment of torsion hydraulic wrench, and the counter-force arm dog of a model can adapt to a plurality of different model hydraulic wrench moreover.

Description

Hydraulic wrench calibrating instrument with reaction arm angle adjusting function

Technical Field

The utility model belongs to the technical field of mechanics detecting instrument, concretely relates to hydraulic wrench examines and determine appearance.

Background

The existing hydraulic torque wrench calibrator, for example, the hydraulic torque wrench calibrator of patent No. CN201289421Y, mainly comprises a digital display, a housing, a torque sensor, an adapter, a reaction arm stop, and a bottom plate, and can accurately complete the detection of the output torque precision of the hydraulic torque wrench. However, in practice, it is found that when the calibrating instrument completes the detection task, the reaction arm stopper corresponding to the model of the hydraulic torque wrench to be detected must be installed first, that is, if the model of the reaction arm stopper on the calibrating instrument does not correspond to the model of the hydraulic torque wrench to be detected, the reaction arm stopper on the calibrating instrument must be replaced. The calibrating instrument has the further disadvantage that after the reaction arm stop block is installed and fixed, the horizontal angle of the reaction arm stop block cannot be adjusted, and the reaction arm stop block cannot be always attached to the reaction supporting surface of the hydraulic torque wrench to be tested in the detection process because the detection is carried out in a rotating state, so that the contact surface of the hydraulic torque wrench to be tested is easily damaged when the hydraulic torque wrench with the large torque of more than 10000N.m is detected.

Disclosure of Invention

To the problem that above-mentioned prior art exists, the utility model aims to provide a counter-force arm angle can self-adaptation regulation, and the counter-force arm dog of a model can adapt to a plurality of different model hydraulic wrench's examination appearance moreover.

The technical scheme for realizing the purpose is as follows: the utility model provides a hydraulic wrench examines and determine appearance with reaction arm angle regulatory function, includes examination operation panel, reaction arm dog and spanner grafting unit and outer digital display appearance of connecting, its characterized in that, reaction arm dog includes fixing base, rotatory dog and adjustment cushion, the fixing base is a vertical cylinder of fixing on examination operation panel mesa, rotatory dog is a suit and is in on the cylinder and rather than forming sliding fit's rigid component, the one end of rotatory dog atress is the cuboid, the adjustment cushion is independent part, is that thickness is 10 ~ 30 mm's cuboid.

Furthermore, a circle of circular truncated cone is arranged on the outer edge of the bottom of the fixing seat, and the height of the circular truncated cone is smaller than 5 mm.

Further, the length and the width of the adjusting cushion block are the same as those of the force bearing surface of the rotating stop block.

Furthermore, the number of the adjusting cushion blocks is 1-3.

The utility model discloses because rotatory dog in the counter-force arm dog can the level rotate, counter-force arm angle can be adjusted, therefore in the testing process, the stress surface of rotatory dog can be adjusted to the holding surface laminating state with the hydraulic torque wrench that awaits measuring, can not cause any damage to its contact surface when detecting 10000N.m above big moment of torsion hydraulic wrench. The utility model has the advantages of, the counter-force arm dog of a model can adapt to a plurality of different model hydraulic wrenches, need not the counter-force arm dog of reserve too much model, can reduce the manufacturing cost of examination appearance, has also accelerated detection speed.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description of the embodiments are briefly introduced below.

Fig. 1 is a schematic view of the overall structure of an embodiment of the present invention.

FIG. 2 is a cross-sectional view of the reaction arm stop of FIG. 1.

Fig. 3 is a perspective view of the holder of fig. 2.

Fig. 4 is a perspective view of the rotation stopper of fig. 2.

Fig. 5 is a perspective view of the setting block of fig. 2.

Fig. 6 is a schematic diagram of the present invention for detecting a driving type 3 hydraulic torque wrench.

Fig. 7 is a schematic diagram of the present invention for detecting a 5-type driving hydraulic torque wrench.

Fig. 8 is a schematic diagram of the present invention for detecting a hollow 8-type hydraulic torque wrench.

In the figure: 1. the device comprises a verification operating platform, 2, a counter-force arm stop block, 3, a wrench plug-in unit, 4, a digital display instrument, 5, a fixed seat, 5-1, a circular table, 5-2, an installation screw hole, 6, a rotating stop block, 6-1, a sleeving hole, 6-2, a stressed cuboid, 7, an adjusting cushion block, 8 and a hydraulic torque wrench.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings. 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.

As shown in fig. 1 to 5, the utility model discloses a examination operation panel 1, reaction arm dog 2 and spanner grafting unit 3 and the digital display instrument 4 of connecting through the connecting wire, the utility model discloses the improvement to prior art lies in, reaction arm dog 2 includes fixing base 5, rotatory dog 6 and adjustment cushion 7, fixing base 5 is a vertical cylinder of fixing on examination operation panel 1 mesa, rotatory dog 6 is a rigid part, suit hole 6-1 is wherein, suit hole 6-1's aperture and fixing base 5's diameter adaptation, the one end of rotatory dog 6 is atress cuboid 6-2, 6 suits of rotatory dog are on cylinder 5, be sliding fit between the two, adjustment cushion 7 is independent part, is the cuboid that thickness is 10 ~ 30 mm.

In the embodiment, as shown in fig. 3, the fixing base 5 has three mounting screw holes 5-2 spaced apart from each other and parallel to the axis, and the fixing base 5 is fixedly mounted on the top of the calibration operating platform 1 by bolts.

As shown in fig. 3, a circle of truncated cone 5-1 is arranged on the outer edge of the bottom of the fixed seat 5, and the height of the truncated cone is less than 5 mm. The ring round platform 5-1 has the advantages that when the rotary stop block 6 is sleeved on the cylinder 5, the ring round platform 5-1 lifts the bottom of the rotary stop block 6, so that the contact between the lower end face of the rotary stop block 6 and the surface of the verification operating platform 1 can be avoided, and verification errors are reduced.

As shown in fig. 4, 5 and 7, in this embodiment, the length and width of the adjusting pad 7 are the same as those of the force-bearing rectangular solid on the rotation stopper 6.

The utility model discloses in, the number of adjustment cushion 7 is 1 ~ 3.

When detecting, the hydraulic torque wrench 8 to be detected is connected with the sensor through the adapter, so that the hydraulic torque wrench 8 is installed on the wrench plug-in unit 3 of the detecting instrument, and then the hydraulic torque wrench 8 is connected with the hydraulic oil pipe. The hydraulic torque wrench 8 and the rotary stop 6 are respectively rotated to proper angles, so that the reaction surface of the hydraulic torque wrench 8 is attached to the force bearing surface of the force bearing cuboid 6-2 of the rotary stop 6, as shown in fig. 6 and 7. When the reaction surface of the hydraulic torque wrench 8 and the force bearing surface of the rotation block 6 are adjusted to be parallel, if a certain distance is left between them, the adjusting cushion blocks 7 with proper thickness or quantity are selected to be placed in the gap, as shown in fig. 8. Therefore, the stressed parts of the two stressed parts can be ensured to be in surface contact, and the damage to the supporting surface of the hydraulic torque wrench can be avoided.

The utility model discloses in, rotatory dog 6 among the counter-force arm dog 2 can the horizontal free rotation, and the angle of the counter-force arm that is formed by counter-force arm dog 2 during atress can be adjusted, therefore in the testing process, the stress surface of rotatory dog 6 can be adjusted to the holding surface laminating state with the hydraulic torque wrench 8 that awaits measuring. And the utility model provides a counter-force arm dog 2 of model can adapt to a plurality of different model hydraulic torque wrench, need not the counter-force arm dog of reserve too much model.

Claims

1. The utility model provides a hydraulic wrench examines and determine appearance with reaction arm angle modulation function, includes examination operation panel, reaction arm dog and the digital display appearance of spanner grafting unit and outer joint, its characterized in that: the reaction arm check block comprises a fixing seat, a rotary check block and an adjusting cushion block, the fixing seat is a vertically fixed cylinder on the surface of the verification operating platform, the rotary check block is a rigid part which is sleeved on the cylinder and forms sliding fit with the cylinder, one end of the rotary check block is a cuboid, and the adjusting cushion block is an independent part and is a cuboid with the thickness of 10-30 mm.

2. The hydraulic wrench calibrator with reaction arm angle adjustment function according to claim 1, characterized in that: the outer edge of the bottom of the fixing seat is provided with a circle of round table, and the height of the round table is smaller than 5 mm.

3. The hydraulic wrench calibrator with reaction arm angle adjustment function according to claim 1, characterized in that: the length and width of the adjusting cushion block are the same as those of the stress surface of the rotary stop block.

4. The hydraulic wrench calibrator with reaction arm angle adjustment function according to claim 1, characterized in that: the number of the adjusting cushion blocks is 1-3.