CN209841518U

CN209841518U - Steel wire rope breaking and stretching test device

Info

Publication number: CN209841518U
Application number: CN201920185437.5U
Authority: CN
Inventors: 邵永清; 张松; 施瑾; 陈晨; 严澄强
Original assignee: JIANGSU FASTEN SPECIAL STEEL PRODUCTS Co Ltd
Current assignee: JIANGSU FASTEN SPECIAL STEEL PRODUCTS Co Ltd
Priority date: 2019-02-01
Filing date: 2019-02-01
Publication date: 2019-12-24
Anticipated expiration: 2029-02-01

Abstract

The utility model relates to a wire rope breaking tensile test device, the top and the bottom of testing machine all are fixed with a holding head, and the anchor clamps of holding head comprise half anchor clamps on a left side and half anchor clamps on the right side, half anchor clamps on a left side and half anchor clamps on the right side have all seted up a U-shaped groove along its axial, and an aluminum sheet has all been placed in the centre in every U-shaped groove, buckle downwards in the centre of aluminum sheet and all be absorbed in the U-shaped groove, half anchor clamps on a left side and half anchor clamps on the right side to the back, two aluminum sheets hold wire rope, and wire rope falls and tightly is pressed from both sides in the. The steel wire rope breaking tensile test device is characterized in that aluminum sheets with corresponding sizes are processed according to the diameter of a steel wire rope, the two aluminum sheets bent by 12O degrees are placed into the U-shaped grooves of the left half die and the right half die of the clamp, tensile tests can be carried out by clamping two ends of the steel wire rope between the two aluminum sheets, the friction force between the steel wire rope and the clamping head is improved, the steel wire rope is prevented from sliding out, the aluminum sheets can be repeatedly used, and the clamping head cannot be abraded.

Description

Steel wire rope breaking and stretching test device

Technical Field

The utility model relates to a wire rope breaking tensile test device.

Background

After the production of the steel wire rope is finished, a plurality of samples need to be selected for a breaking and stretching test, and the test methods for the whole rope breaking and stretching of the steel wire rope comprise 4 types: casting, coining, winding and direct clamping. The casting method and the sleeve pressing method are complex in operation, time-consuming and not frequently adopted, only a winding method and a direct clamping method are adopted, but the winding method is suitable for steel wire ropes with small diameters, and the direct clamping method is adopted for steel wire ropes with large diameters. The steel wire rope is clamped on two clamps on the tensile testing machine, the upper clamp is fixed on an upper frame cross beam of the testing machine, the lower clamp is fixed on a testing machine base, and the upper clamp can lift up and down, so that the tensile test is carried out on the steel wire rope.

However, when the steel wire rope is clamped by the direct clamping method, a gap exists between the clamp and the steel wire rope, and the clamp cannot clamp the steel wire rope during stretching, so that the tensile test fails. Some companies spray emery on the surface of the steel wire rope before testing to increase friction force, but on one hand, the emery is expensive to increase the testing cost, and on the other hand, the steel wire rope cannot be guaranteed to slide out in the stretching process.

Disclosure of Invention

An object of the utility model is to overcome the aforesaid not enough, provide one kind and can firmly clip wire rope, avoid the wire rope rupture tensile test device of wire rope roll-off.

The purpose of the utility model is realized like this:

the utility model provides a wire rope breaking tensile test device, it includes the testing machine, and the lower part of this testing machine is provided with the base, and the top is provided with the elevator, the top of base and the bottom of elevator all are fixed with a holding head, and the holding head comprises the grip block of both sides and middle anchor clamps, and the grip block of both sides firmly fixes anchor clamps in the middle of, and wherein the anchor clamps of upper and lower holding head constitute by half left anchor clamps and half right anchor clamps, the U-shaped groove of a rectangular shape is all seted up along its axial to half left side anchor clamps and half right anchor clamps, and an aluminum sheet has all been placed in the centre in every U-shaped groove, bending down forms the kink in the centre of aluminum sheet, and the kink of aluminum sheet is all absorbed in the U-shaped groove, and half left side anchor clamps and half right anchor clamps are to the back, and two aluminum sheets are with.

The lifting block limits the lifting of the lifting block through the guide pillar.

The bottom of the groove of the U-shaped groove is semicircular.

The bottom of the U-shaped groove is provided with a plurality of bulges in parallel along the axial direction.

The bending angle of the bending part is 12O degrees.

And a handle is fixed on each of the left half clamp and the right half clamp.

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

the steel wire rope breaking tensile test device is characterized in that a U-shaped groove is formed in the middle of a left half die and a right half die of an upper clamp and a lower clamp, aluminum sheets with corresponding sizes are processed according to the diameter of a steel wire rope, the two aluminum sheets bent by 12O degrees are placed into the U-shaped grooves of the left half die and the right half die of the clamps, the two ends of the steel wire rope are clamped between the two aluminum sheets to perform tensile test, the friction force between the steel wire rope and a clamping head is improved, the steel wire rope is prevented from sliding out, the aluminum sheets can be repeatedly used.

Drawings

Fig. 1 is the structure schematic diagram of the steel wire rope breaking tensile test device of the utility model.

Fig. 2 is a schematic structural view of the jig of fig. 1.

Fig. 3 is a right side view of the left clamp half of fig. 2.

Wherein: the testing machine comprises a testing machine 1, a base 2, a lifting block 3, a guide pillar 4, a clamping head 5, a clamping block 6, a clamp 7, a left half clamp 8, a right half clamp 9, a U-shaped groove 10, a protrusion 11, a handle 12, an aluminum sheet 13, a bending part 14 and a steel wire rope 15.

Detailed Description

Referring to fig. 1 to 3, the utility model relates to a wire rope breaking tensile test device, which comprises a testing machine 1, a base 2 is arranged at the lower part of the testing machine 1, a lifting block 3 is arranged at the top part, the lifting block 3 limits the lifting through a guide post 4, a clamping head 5 is fixed at the top part of the base 2 and the bottom part of the lifting block 3, the clamping head 5 is composed of clamping blocks 6 at both sides and a clamp 7 at the middle part, the clamping blocks 6 at both sides clamp the clamp 7 at the middle part firmly, the clamp 7 of the upper and lower clamping heads 5 are composed of a left half clamp 8 and a right half clamp 9, the left half clamp 8 and the right half clamp 9 are both provided with a strip-shaped U-shaped groove 10 along the axial direction, the bottom groove of the U-shaped groove 10 is semi-circular, a plurality of bulges 11 are arranged in parallel along the axial direction at the bottom of the U-shaped groove 10, thereby increasing the friction, all be fixed with a handle 12 on half anchor clamps 8 on the left side and half anchor clamps 9 on the right side and be used for mentioning it, an aluminum sheet 13 has all been placed in the centre of every U-shaped groove 10, bending down forms kink 14 in the centre of aluminum sheet 13, and bend angle is 12O, and aluminum sheet 13's kink 14 is all absorbed in U-shaped groove 10, and half anchor clamps 8 on the left side and half anchor clamps 9 on the right side are to the back, and two aluminum sheets 13 are lived the both ends centre gripping of wire rope 15, and wire rope 15 falls and is pressed from both sides tightly in the gap that two kink 14 formed to wire rope 15 and clamping head 5's frictional force has been improved, avoids wire rope.

Claims

1. The utility model provides a wire rope breaking tensile test device which characterized in that: the testing machine comprises a testing machine (1), wherein a base (2) is arranged at the lower part of the testing machine (1), a lifting block (3) is arranged at the top part of the testing machine, a clamping head (5) is fixed at the top part of the base (2) and the bottom part of the lifting block (3), the clamping head (5) consists of clamping blocks (6) at two sides and a middle clamp (7), the clamps (7) are clamped between the clamping blocks (6) at two sides and are firmly fixed, the clamps (7) of the upper clamping head and the lower clamping head (5) consist of a left half clamp (8) and a right half clamp (9), the left half clamp (8) and the right half clamp (9) are respectively provided with a long-strip-shaped U-shaped groove (10) along the axial direction thereof, an aluminum sheet (13) is placed in the middle of each U-shaped groove (10), the middle part of the aluminum sheet (13) is bent downwards to form a bent part (14), and all the bent parts (14) of the, after the left half clamp (8) and the right half clamp (9) are closed, two ends of the steel wire rope (15) are clamped by the two aluminum sheets (13), and the steel wire rope (15) falls into a gap formed by the two bending parts (14) to be clamped.

2. The steel wire rope breaking tensile test device according to claim 1, characterized in that: the lifting block (3) limits the lifting of the lifting block through the guide pillar (4).

3. The steel wire rope breaking tensile test device according to claim 1, characterized in that: the bottom of the groove of the U-shaped groove (10) is semicircular.

4. The steel wire rope breaking tensile test device according to claim 1, characterized in that: the bottom of the U-shaped groove (10) is provided with a plurality of bulges (11) which are arranged in parallel along the axial direction.

5. The steel wire rope breaking tensile test device according to claim 1, characterized in that: the bending angle of the bending part (14) is 12O degrees.

6. The steel wire rope breaking tensile test device according to claim 1, characterized in that: and a handle (12) is fixed on each of the left half clamp (8) and the right half clamp (9).