Torsion resistance testing device for corrugated pipe production

Abstract

The utility model belongs to the technical field of corrugated pipe detection, particularly relates to a torsion resistance testing device for corrugated pipe production, and provides the following scheme that the torsion resistance testing device comprises a workbench, a driving assembly and a clamping assembly, the driving assembly and the clamping assembly are installed on the workbench, the driving assembly comprises a motor, a driving disc, a driving shaft and a toothed plate, and the driving disc is installed at the output end of the motor. According to the utility model, the driving assembly is arranged, the position of the toothed plate is adjusted according to the twisting degree of the corrugated pipe to be tested, the driving shaft penetrates through the notch of the toothed plate, the driving shaft is rotatably installed at the appropriate group of threaded holes on the driving disc, the driving motor drives the driving disc to rotate, and the driving disc pushes the toothed plate to move through the driving shaft. And the toothed plate can drive the gear to rotate, so that the gear drives the end part of the corrugated pipe to rotate through the clamping assembly, the corrugated pipe is twisted in a reciprocating manner, a twisting test is performed on the corrugated pipe, and the twisting angle can be adjusted as required.

Description

Technical Field

[0001] The utility model relates to the technical field of bellows detection, in particular to a torsion resistance testing device for bellows production. Background Art

[0002] Bellows refers to a tubular elastic sensitive element connected by foldable corrugated sheets along the folding and stretching direction. Bellows are widely used in instruments and meters. Their main purpose is to be used as a measuring element of pressure measuring instruments to convert pressure into displacement or force. The wall of the bellows is thinner and the sensitivity is higher. The measuring range is from tens of Pa to tens of MPa. Its open end is fixed, the sealed end is in a free state, and an auxiliary spiral spring or reed is used to increase the elasticity.

[0003] The bellows will be subjected to more than one torsion and bending force during the installation process, which may cause the mechanical properties of the bellows to deteriorate, and then lead to the major safety hazard of cracking and explosion during long-term use. Therefore, it is necessary to test the torsion resistance of the bellows (such as the maximum torsion angle and the maximum torsion times). Utility Model Content

[0004] The purpose of the utility model is to provide a torsional capacity testing device for corrugated pipe production in view of the defects of the prior art, so as to solve the problems raised in the above background technology.

[0005] A torsional capacity testing device for bellows production, comprising a workbench, a driving assembly and a clamping assembly mounted on the workbench, wherein the driving assembly comprises a motor, a driving disc, a driving shaft and a tooth plate, wherein the driving disc is mounted at the output end of the motor, the tooth plate slides along the slide groove of the workbench through a slider, and the driving shaft is detachably fixed on the driving disc and passes through a notch at the end of the tooth plate;

[0006] The clamping assembly consists of two groups and is arranged up and down, including a positioning part, a pressure-applying part and a cylinder. The pressure-applying part consists of two groups distributed oppositely in the groove of the positioning part. The cylinder is installed in the middle of the positioning part to push the pressure-applying part to approach the inner edge of the positioning part.

[0007] By adopting the above technical solution, the bellows can be positioned and clamped quickly and conveniently, and the torsional range test of the bellows can be adjusted as needed.

[0008] A group of clamping assemblies located at the bottom is installed with a gear meshing with a toothed plate at the bottom, and is rotatably installed on a workbench through a rotating column at the bottom of the gear. A group of clamping assemblies located at the top is installed on a lifting assembly.

[0009] By adopting the above technical solution, it is convenient to position the bellows and perform a torsion test.

[0010] The lifting assembly includes threaded columns and nuts. The threaded columns are installed on the workbench in two groups. The clamping assembly slides up and down on the threaded columns through a connecting plate and is locked by a nut.

[0011] By adopting the above technical solution, real-time adjustment can be made according to the length of the bellows.

[0012] The driving disc is provided with a plurality of threaded holes, and the bottom of the driving shaft is a threaded structure and can be rotated in the threaded holes.

[0013] By adopting the above technical solution, the torsion range test of the wave tube can be adjusted as needed.

[0014] The pressure-applying portion is arranged in a semi-annular structure, and the bottom of the pressure-applying portion slides on the inner side of the positioning portion through a sliding seat.

[0015] By adopting the above technical solution, it is convenient to clamp the end of the corrugated pipe.

[0016] The beneficial effects of the torsion resistance testing device for bellows production are:

[0017] 1. By setting the driving assembly, according to the torsion degree of the bellows to be tested, adjust the position of the tooth plate, make the driving shaft pass through the notch of the tooth plate, and rotate the driving shaft to install it at a suitable set of threaded holes on the driving disk. The driving motor drives the driving disk to rotate, and the driving disk pushes the tooth plate to move through the driving shaft, and then the tooth plate can drive the gear to rotate, so that the gear drives the end of the bellows to rotate through the clamping assembly, so as to reciprocately twist the bellows, and perform a torsion test on the bellows. The torsion angle can be adjusted as needed;

[0018] 2. By setting the clamping assembly, the nut can be loosened appropriately according to the length of the corrugation, so that a set of clamping assemblies located above can be moved to a suitable position, and then the clamping assembly can be locked on the threaded column by the nut to fix the end of the corrugated pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of the torsion resistance testing device for the production of bellows proposed by the utility model;

[0020] Figure 2 A diagram of the driving components of the torsional capacity testing device for producing bellows proposed in the utility model;

[0021] Figure 3 A diagram of the clamping components of the torsional capacity testing device for producing bellows proposed by the utility model.

[0022] In the figure: 1, workbench; 101, slide; 2, motor; 3, drive plate; 301, threaded hole; 4, drive shaft; 5, gear plate; 6, slider; 7, gear; 8, clamping assembly; 801, positioning part; 802, pressure part; 803, cylinder; 9, threaded column; 10, nut. DETAILED DESCRIPTION

[0023] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0024] Reference Figure 1-3 , a torsion resistance testing device for bellows production, comprising a workbench 1, a driving assembly and a clamping assembly mounted on the workbench 1, the driving assembly comprising a motor 2, a driving disc 3, a driving shaft 4 and a tooth plate 5, the driving disc 3 being mounted at the output end of the motor 2, the tooth plate 5 sliding along the slide groove 101 of the workbench 1 through a slider 6, the driving shaft 4 being detachably fixed on the driving disc 3, and passing through the notch at the end of the tooth plate 5;

[0025] The clamping assembly 8 is composed of two groups and arranged up and down, including a positioning portion 801, a pressure portion 802 and a cylinder 803. The pressure portion 802 is composed of two groups and is oppositely distributed in the notch of the positioning portion 801. The cylinder 803 is installed in the middle of the positioning portion 801 to push the pressure portion 802 to approach the inner edge of the positioning portion 801.

[0026] The length of the slide groove 101 opened on the workbench 1 is greater than the length of the tooth plate 5, and the width of the slider 6 is adapted to the width of the slide groove 101, so that the tooth plate 5 can slide along the slide groove 101 through the slider 6, and three groups of threaded holes 301 are preferably arranged on the driving disk 3, and are arranged from the edge of the driving disk 3 to the center of the driving disk 3, thereby controlling the reciprocating movement range of the tooth plate 5, and then changing the rotation angle of the gear 7 of the synchronous meshing transmission, so as to adjust the torsional angle of the bellows as needed.

[0027] The pressure-applying portion 802 is a semi-annular structure, and the bottom of the pressure-applying portion 802 slides on the inner side of the positioning portion 801 through a slide seat, and one end of the bellows is placed in a group of clamping components 8 located below. The nut 10 on the threaded column 9 is rotated to move the group of clamping components 8 located above downward. At this time, the outer walls of the upper and lower ends of the bellows are respectively attached to the inner edges of the positioning portions 801 of the two groups of clamping components 8. After that, the cylinder 803 can be driven to push the pressure-applying portion 802 to start applying pressure from the inner side wall of the bellows, so that the end of the bellows is clamped by the pressure-applying portion 802 and the positioning portion 801;

[0028] A plurality of threaded holes 301 are provided on the driving disk 3, and the bottom of the driving shaft 4 is a threaded structure and can be rotated in the threaded hole 301. According to the torsion degree of the bellows to be tested, the position of the tooth plate 5 is adjusted so that the driving shaft 4 passes through the notch of the tooth plate 5, and the driving shaft 4 is rotatably installed at a suitable set of threaded holes 301 on the driving disk 3. The driving motor 2 drives the driving disk 3 to rotate, and the driving disk 3 pushes the tooth plate 5 to move through the driving shaft 4, and then the tooth plate 5 can drive the gear 7 to rotate, so that the gear 7 drives the end of the bellows to rotate through the clamping assembly 8, so that the bellows is twisted back and forth, and the torsion test of the bellows is performed.

[0029] A group of clamping assemblies 8 located at the bottom has a gear 7 meshing with the toothed plate 5 installed at the bottom, and the gear 7 is rotatably installed on the workbench 1 through a rotating column at the bottom, and a group of clamping assemblies 8 located at the top is installed on the lifting assembly; the clamping assembly 8 is installed on the gear 7, and the gear 7 can rotate on the workbench 1 through the rotating column at its bottom, and the group of clamping assemblies 8 located at the top is fixed on the threaded column 9 to maintain stability.

[0030] The lifting assembly includes a threaded column 9 and a nut 10. The threaded column 9 is installed on the workbench 1 in two groups. The clamping assembly 8 slides up and down on the threaded column 9 through a connecting plate and is locked by the nut 10. According to the length of the corrugated pipe, the nut 10 can be loosened appropriately to move the upper group of clamping assemblies 8 to a suitable position, and then the clamping assembly 8 can be locked on the threaded column 9 by the nut 10, so as to fix the end of the corrugated pipe.

[0031] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A torsional capacity testing device for corrugated pipe production, comprising a workbench (1), a driving assembly and a clamping assembly mounted on the workbench (1), characterized in that: The driving assembly comprises a motor (2), a driving disc (3), a driving shaft (4) and a tooth plate (5); the driving disc (3) is mounted at the output end of the motor (2); the tooth plate (5) slides along a slide groove (101) of the workbench (1) through a slider (6); the driving shaft (4) is detachably fixed to the driving disc (3) and passes through a notch at the end of the tooth plate (5); The clamping assembly (8) is composed of two groups and arranged up and down, and includes a positioning portion (801), a pressure portion (802) and a cylinder (803). The pressure portion (802) is composed of two groups and is oppositely distributed in the notch of the positioning portion (801). The cylinder (803) is installed in the middle of the positioning portion (801) and is used to push the pressure portion (802) to approach the inner edge of the positioning portion (801).

2. The torsional capacity testing device for corrugated pipe production according to claim 1 is characterized in that: A group of clamping assemblies (8) located at the bottom is provided with a gear (7) meshing with the toothed plate (5) at the bottom, and the gear (7) is rotatably mounted on the workbench (1) via a rotating column at the bottom, and a group of clamping assemblies (8) located at the top is mounted on the lifting assembly.

3. The torsional capacity testing device for corrugated pipe production according to claim 2 is characterized in that: The lifting assembly comprises a threaded column (9) and a nut (10). The threaded column (9) is installed on the workbench (1) in two groups. The clamping assembly (8) slides up and down on the threaded column (9) through a connecting plate and is locked by the nut (10).

4. The torsional capacity testing device for corrugated pipe production according to claim 3 is characterized in that: The driving disk (3) is provided with a plurality of threaded holes (301), and the bottom of the driving shaft (4) is a threaded structure and can be rotated in the threaded holes (301).

5. The torsional capacity testing device for corrugated pipe production according to claim 4 is characterized in that: The pressure-applying portion (802) is arranged in a semi-annular structure, and the bottom of the pressure-applying portion (802) slides on the inner side of the positioning portion (801) via a sliding seat.

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