CN220399155U - High strength bolt pull torsion test device - Google Patents

Abstract

The utility model belongs to the technical field of testers, and particularly relates to a high-strength bolt tension-torsion test device which comprises a base, a movable clamping mechanism and a torsion mechanism, wherein the movable clamping mechanism is arranged on the base; the utility model has the advantages that compared with the prior art, the utility model has simple structure, is widely applied to various bolt pull-torsion test occasions, the axial force sensor moves forward, the error caused by the deformation of the equipment in the test process can be avoided, and the test precision is higher.

Description

High strength bolt pull torsion test device

Technical Field

The utility model belongs to the technical field of testers, and particularly relates to a high-strength bolt tension-torsion test device.

Background

The large-scale wind power bolt is mainly used for fixing a tower barrel and a variable pitch flange in the wind power generation industry, and two types of bolts are commonly used: the blackening treatment is carried out on the high-strength stud and the ultra-long and ultra-large bolt with the diameter of 20-42cm, and the strength grade of the bolt is high and is mostly 8.8 grade and 12.9 grade.

Along with the continuous development of industrial system and civil system engineering, the use amount of high-strength bolts similar to wind power bolts is increased increasingly, and in consideration of the fact that public safety is required by engineering construction parties and acceptance parties for the mechanical properties of the high-strength bolts, the setting position of a sensor of a current bolt pull-torsion experimental device is far away from a detection bolt, and the generated test effect often comprises deformation of equipment in the test process, so that the test result is inaccurate.

Disclosure of Invention

The utility model aims at the problems in the prior art, and specifically designs a high-strength bolt tension-torsion test device, so that the test influence caused by deformation of equipment is avoided.

In order to achieve the above purpose, the utility model provides a high-strength bolt tension-torsion test device, which comprises a base moving clamping mechanism and a torsion mechanism; the movable clamping mechanism and the torsion mechanism are both arranged on the base, a sensor is arranged on the movable clamping mechanism, and the sensor is positioned at the clamping end close to the high-strength bolt.

Further, the movable clamping mechanism further comprises a bearing base, a clamp body, an anti-rotation clamping plate, a bushing, a sliding rail and a driving system;

the sliding rail is arranged on the base, the bearing base is arranged in an adaptive manner with the sliding rail, the clamp body is arranged on the bearing base, the anti-rotation clamping plate is arranged on the bearing base, the bushing is arranged on the bearing base, and the inner diameter of the bushing is adaptive to the diameter of the high-strength bolt;

the driving system is arranged on the base and is in transmission connection with the bearing base.

Further, the torsion mechanism comprises a bracket, a speed reducer and a torsion sleeve; the support is mounted on the base, the speed reducer is mounted on the support, the speed reducer is connected with the torsion sleeve, and the torsion sleeve is collinear with the center line of the bushing.

Further, the torsion mechanism further comprises a connecting sleeve and a transition sleeve; the connecting sleeve is connected with the speed reducer, the transition sleeve is coaxially connected with the connecting sleeve, and the torsion sleeve is arranged in the transition sleeve.

In summary, the high-strength bolt tension-torsion test device disclosed by the utility model is simple and convenient to mount and dismount, and meanwhile, the sensor moves forwards and is closer to the tested high-strength bolt, so that errors caused by deformation of equipment per se to a test result are avoided, and the test precision of the tension-torsion test machine is improved.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic front view of a high strength bolt pull-torsion test apparatus of the present utility model;

fig. 2 is a schematic left-hand view of a high-strength bolt tension-torsion test apparatus of the present utility model.

The reference numerals in the drawings are:

1. a base; 2. moving the clamping mechanism; 21. a load-bearing base; 22. a clamp body; 23. a sensor; 24. an anti-rotation clamping plate; 25. a bushing; 26. a slide rail; 27. a drive system;

3. a torsion mechanism; 31. a bracket; 32. a speed reducer; 33. a torsion sleeve; 34. connecting sleeves; 35. and (5) a transition sleeve.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

As shown in fig. 1-2, a high-strength bolt pull-torsion test device comprises a base 1, a movable clamping mechanism 2 and a torsion mechanism 3, wherein a slide rail 26 parallel to each other is installed on the upper surface of the base 1, a bearing base 21 is installed on the slide rail 26, so that the bearing base can slide along the slide rail 26, a clamp body 22 is installed on the bearing base 21, an anti-rotation clamping plate 24 is installed on the bearing base 21, a clamping groove is formed in the anti-rotation clamping plate 24, the shape of the clamping groove is matched with the size of a nut of the high-strength bolt, a bushing 25 is installed on the bearing base 21 and is positioned on the right side of the bearing base 21 and used for supporting the high-strength bolt, a sensor 23 is a shaft sensor and is installed on the bearing base 21, a driving system 27 comprises a horizontal speed reducer and a ball screw pair, the bearing base 21 is connected with the ball screw pair, the output end of the horizontal speed reducer is connected with a screw drive, the bearing base 21 is driven to move along the slide rail 26 through rotation of the horizontal speed reducer, and the model number of the horizontal speed reducer is: speed reducer XWD4-23-1.5.

The torsion mechanism 3 comprises a bracket 31, a speed reducer 32, a torsion sleeve 33, a connecting sleeve 34 and a transition sleeve 35; the support 31 is fixedly arranged on the right side of the base 1 through bolts, the speed reducer 32 is arranged on the support 31, the model is a planetary speed reducer SPN11-L4, the output end of the speed reducer 32 is in driving connection with the connecting sleeve 34, the connecting sleeve 34 is connected with the transition sleeve 35 through bolt fasteners, the torque sleeve 33 is fixedly arranged on the transition sleeve 35, and the torque sleeve 33 is collinear with the center of the bushing 25. The torsion sleeve 33 is provided with an inner groove for torsion.

The utility model relates to a high-strength bolt tension-torsion test device, which comprises the following working principles:

the high-strength bolt to be detected is mounted on the bearing base 21 through the bushing 25 and the anti-rotation clamping plate 24, then the bearing base 21 is enabled to move rightwards through the rotation horizontal speed reducer, the nut end of the bolt is enabled to be sleeved into the torsion sleeve 33, the high-strength bolt is enabled to be twisted through the rotation speed reducer 32, and the sensor 23 is a shaft force sensor, so that the mechanical property of the high-strength bolt can be accurately measured.

The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims (4)

1. The utility model provides a high strength bolt draws and twists test device, includes base (1), its characterized in that: the device also comprises a movable clamping mechanism (2) and a torsion mechanism (3); the movable clamping mechanism (2) and the torsion mechanism (3) are both arranged on the base (1), a sensor (23) is arranged on the movable clamping mechanism (2), and the sensor (23) is positioned at the clamping end close to the high-strength bolt.

2. The high strength bolt pull torsion test device according to claim 1, wherein: the movable clamping mechanism (2) further comprises a bearing base (21), a clamp body (22), an anti-rotation clamping plate (24), a bushing (25), a sliding rail (26) and a driving system (27);

the sliding rail (26) is arranged on the base (1), the bearing base (21) is arranged in a matched mode with the sliding rail (26), the clamp body (22) is arranged on the bearing base (21), the anti-rotation clamping plate (24) is arranged on the bearing base (21), the bushing (25) is arranged on the bearing base (21), and the inner diameter of the bushing (25) is matched with the diameter of the high-strength bolt;

the driving system (27) is arranged on the base (1) and is in transmission connection with the bearing base (21).

3. The high strength bolt pull torsion test device according to claim 2, wherein: the torsion mechanism (3) comprises a bracket (31), a speed reducer (32) and a torsion sleeve (33); the support (31) is installed on the base (1), the speed reducer (32) is installed on the support (31), the speed reducer (32) is connected with the torsion sleeve (33), and the torsion sleeve (33) is collinear with the center line of the bushing (25).

4. A high strength bolt pull torsion test apparatus according to claim 3, wherein: the torsion mechanism (3) further comprises a connecting sleeve (34) and a transition sleeve (35); the connecting sleeve (34) is connected with the speed reducer (32), the transition sleeve (35) is coaxially connected with the connecting sleeve (34), and the torsion sleeve (33) is installed in the transition sleeve (35).