CN214040923U - Clamp device for testing steel wire rope or steel strand - Google Patents

Clamp device for testing steel wire rope or steel strand Download PDF

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Publication number
CN214040923U
CN214040923U CN202022869629.3U CN202022869629U CN214040923U CN 214040923 U CN214040923 U CN 214040923U CN 202022869629 U CN202022869629 U CN 202022869629U CN 214040923 U CN214040923 U CN 214040923U
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China
Prior art keywords
tooth
sliding block
push
clamp
pull plate
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CN202022869629.3U
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Chinese (zh)
Inventor
许科华
朱飞
高科
胡志刚
郭建斌
张国珍
丁鑫
高晓清
陈卫
张琴凤
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Jiangsu Fasten Material Analysis & Inspection Co ltd
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Jiangsu Fasten Material Analysis & Inspection Co ltd
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Abstract

The utility model relates to a clamp device for testing a steel wire rope or a steel strand, which comprises a clamp body of a testing machine, a slide block, a push-pull plate, a clamp tooth sheet and a sample; a wedge-shaped cavity is formed in the testing machine clamp body; a slide block, a push-pull plate and a clamp tooth sheet are arranged in the wedge-shaped cavity; the cross section of the sliding block is in a right trapezoid shape, the middle part of the vertical surface of the sliding block is provided with a dovetail groove, and the upper part of the sliding block is provided with a U-shaped groove used for being connected with the push-pull plate; the lower part of the push-pull plate is provided with internal threads which are connected with the sliding block; the tooth profile of the fixture tooth piece is a right-angle triangular tooth, a semicircular notch is formed in the fixture tooth piece, and a dovetail position is arranged between the tail portion and the middle portion of the fixture tooth piece and is connected with the sliding block. The utility model discloses the sample head is difficult to be pressed from both sides flat loose, and the profile of tooth changes and makes the sample be difficult to be hindered by the clamp in test process, and the sample is difficult to break taking place keeping silent, has solved the tensile easy problem of keeping silent inside of breaking of steel strand wires.

Description

Clamp device for testing steel wire rope or steel strand
Technical Field
The utility model relates to a machine part test fixture technical field especially relates to a wire rope or steel strand wires's anchor clamps device for experiment.
Background
In the field of stretching of steel wire ropes and steel strands, the stretching method adopted for steel wire ropes with the diameter of less than 24mm is generally a winding method or a casting method, the length of the steel wire rope is longer when the steel wire rope is stretched by the winding method, the steel wire rope with a larger thickness is difficult to wind, and the breakage of a sample often occurs at the tangent point position of a winding disc and the steel wire rope, so that the force value is lower than the actual value; when the drawing rope is drawn by a casting method, the head parts of the two ends of the steel wire rope are scattered and degreased, then the two ends are respectively cast, and the time consumption is long; the steel strand is directly stretched, and because the steel strand has higher strength (about 2000 MPa), the original tooth piece of the testing machine is used for clamping, the fracture of the sample at the effective part cannot be ensured, and the testing efficiency is greatly reduced.
In view of the above reasons, aiming at an SHT4605-G electro-hydraulic servo universal testing machine, a clamp device for testing a phi 8-phi 24 steel wire rope or a steel strand is designed and developed, and the problems are solved.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome above-mentioned not enough, provide a wire rope or steel strand wires's fixture device for experiment, solve the tensile easy problem of keeping silent of cutting open of steel strand wires.
The purpose of the utility model is realized like this:
a clamp device for testing a steel wire rope or a steel strand comprises a testing machine clamp body, a sliding block, a push-pull plate, a clamp tooth piece and a test sample; a wedge-shaped cavity is formed in the testing machine clamp body; a slide block, a push-pull plate and a clamp tooth sheet are arranged in the wedge-shaped cavity; the cross section of the sliding block is in a right trapezoid shape, the middle part of the vertical surface of the sliding block is provided with a dovetail groove, and the upper part of the sliding block is provided with a U-shaped groove used for being connected with the push-pull plate; the lower part of the push-pull plate is provided with internal threads which are inserted into the U-shaped groove and connected with the sliding block; the tooth profile of the fixture tooth piece is a right-angled triangular tooth, a semicircular notch is formed in the fixture tooth piece, and a dovetail position is arranged between the tail portion and the middle portion of the fixture tooth piece and is connected with a dovetail groove of the sliding block.
A fixture device for testing a steel wire rope or a steel strand, wherein a dovetail position is arranged on a fixture tooth piece at a position 1/3 away from the bottom surface of the fixture tooth piece.
A clamp device for testing a steel wire rope or a steel strand is characterized in that the section of a push-pull plate is T-like, and the diameter of the upper part of the push-pull plate is larger than that of the lower part of the push-pull plate.
One end of the sample is inserted into one fixture tooth piece, and the other end of the sample is inserted into the other fixture tooth piece.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model has the advantages that the semi-circular notch is arranged on the fixture tooth piece, and the tooth shape and the dovetail position of the fixture are optimized on the basis, so that when a steel wire rope sample is clamped, the head of the sample is not easy to be flattened and loosened, and the sample is not easy to be clamped and damaged in the test process due to the change of the tooth shape; due to the change of the position of the dovetail groove, after the sample is clamped, the stress state from the end part to the tail part of the jaw is gradually increased, the sample is not easy to break at the jaw, so that the test is invalid, the defects of a phi 8-phi 24 steel wire rope winding method and a casting method are well overcome, and the problem that the steel strand is easy to break inside the jaw when being stretched is solved; just the utility model discloses simple structure, convenient to use.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of the slider of the present invention.
Fig. 3 is a schematic structural view of the push-pull plate of the present invention.
Fig. 4 is a top view of the slider according to the present invention.
Fig. 5 is a front view of the slider of the present invention.
Fig. 6 is a side view of the slider of the present invention.
Fig. 7 is a partial schematic view of the tooth profile of the slider according to the present invention.
Wherein:
the testing machine comprises a testing machine clamp body 1, a sliding block 2, a dovetail groove 2.1, a U-shaped groove 2.2, a push-pull plate 3, a clamp tooth piece 4, a semicircular notch 4.1 and a test sample 5.
Detailed Description
For better understanding of the technical solution of the present invention, the following detailed description will be made with reference to the accompanying drawings. It should be understood that the following embodiments are not intended to limit the embodiments of the present invention, but only the embodiments of the present invention. It should be noted that the description of the positional relationship of the components, such as the component a is located above the component B, is based on the description of the relative positions of the components in the drawings, and is not intended to limit the actual positional relationship of the components.
Example 1:
referring to fig. 1 to 7, fig. 1 is a schematic structural view of a clamp device for testing a steel wire rope or a steel strand. As shown in the figures, the clamp device for testing a steel wire rope or a steel strand of the utility model comprises a testing machine clamp body 1, a slide block 2, a push-pull plate 3, a clamp tooth sheet 4 and a sample 5; the testing machine clamp body 1 is a testing machine self-carrying body, and a wedge-shaped cavity is arranged inside the testing machine clamp body 1; the slide block 2, the push-pull plate 3 and the clamp tooth sheet 4 are arranged in the wedge-shaped cavity.
The cross section of the sliding block 2 is in a right trapezoid shape, the middle of the vertical surface of the sliding block 2 is provided with a dovetail groove 2.1, and the upper part of the sliding block 2 is provided with a U-shaped groove 2.2 used for being connected with the push-pull plate 3.
The section of the push-pull plate 3 is T-like, the diameter of the upper part of the push-pull plate is larger than that of the lower part of the push-pull plate, internal threads are arranged on the lower part of the push-pull plate 3 and inserted into the U-shaped groove 2.2 to be connected with the sliding block 2, and the sliding block 2 is pushed or pulled to clamp or loosen a sample by using a cylinder piston of a testing machine.
The tooth profile of the fixture tooth piece 4 is a right-angle triangle tooth, the tooth distance is small, a semicircular notch 4.1 is formed in the fixture tooth piece 4, a dovetail position is formed in the position, away from the bottom surface 1/3, of the fixture tooth piece 4, and the fixture tooth piece is connected with a dovetail groove 2.1 of the sliding block 2.
One end of the sample 5 is inserted into the semicircular notch 4.1 of one fixture tooth piece 4, and the other end is inserted into the semicircular notch 4.1 of the other fixture tooth piece 4.
The sample 5 is a steel wire rope or steel strand sample, the sample is clamped between the sample and the clamping tooth piece, the head of the sample is required to protrude out of the clamping tooth piece for a certain distance, and an aluminum sheet can be added or not added according to the sample condition.
The above is only a specific application example of the present invention, and does not constitute any limitation to the protection scope of the present invention. All the technical solutions formed by equivalent transformation or equivalent replacement fall within the protection scope of the present invention.

Claims (4)

1. The utility model provides a fixture device for test of wire rope or steel strand wires which characterized in that: the device comprises a testing machine clamp body (1), a sliding block (2), a push-pull plate (3), a clamp tooth sheet (4) and a test sample (5); a wedge-shaped cavity is formed in the testing machine clamp body (1); a slide block (2), a push-pull plate (3) and a clamp tooth sheet (4) are arranged in the wedge-shaped cavity; the section of the sliding block (2) is in a right-angle trapezoid shape, a dovetail groove (2.1) is formed in the middle of the vertical surface of the sliding block (2), and a U-shaped groove (2.2) is formed in the upper portion of the sliding block (2) and used for being connected with the push-pull plate (3); the lower part of the push-pull plate (3) is provided with internal threads which are inserted into the U-shaped groove (2.2) and connected with the sliding block (2); the tooth profile of anchor clamps tine (4) is right angle triangle tooth, set up semi-circular notch (4.1) on anchor clamps tine (4), establish to the forked tail position between afterbody and the middle part of anchor clamps tine (4) to link to each other with dovetail (2.1) of slider (2).
2. The clamp device for testing a steel wire rope or a steel strand according to claim 1, wherein: the fixture tooth plate (4) is arranged at a dovetail position at a position which is far from the bottom surface 1/3 of the fixture tooth plate.
3. The clamp device for testing a steel wire rope or a steel strand according to claim 1, wherein: the section of the push-pull plate (3) is similar to a T shape, and the diameter of the upper part is larger than that of the lower part.
4. The clamp device for testing a steel wire rope or a steel strand according to claim 1, wherein: one end of the sample (5) is inserted into one fixture toothed sheet (4), and the other end of the sample is inserted into the other fixture toothed sheet (4).
CN202022869629.3U 2020-12-04 2020-12-04 Clamp device for testing steel wire rope or steel strand Active CN214040923U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202022869629.3U CN214040923U (en) 2020-12-04 2020-12-04 Clamp device for testing steel wire rope or steel strand

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202022869629.3U CN214040923U (en) 2020-12-04 2020-12-04 Clamp device for testing steel wire rope or steel strand

Publications (1)

Publication Number Publication Date
CN214040923U true CN214040923U (en) 2021-08-24

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115753345A (en) * 2022-12-05 2023-03-07 中国人民解放军92942部队 Steel wire rope steel wire tensile test gasket and test fixture using same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115753345A (en) * 2022-12-05 2023-03-07 中国人民解放军92942部队 Steel wire rope steel wire tensile test gasket and test fixture using same

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