CN211952220U

CN211952220U - Protective device for steel wire rope relaxation corrosion test

Info

Publication number: CN211952220U
Application number: CN201922048731.4U
Authority: CN
Inventors: 周春煦; 陈建豪; 吴澎; 刘爱华; 阮小丽; 曹祥; 史誉州; 许鹏鹏; 夏昊天
Original assignee: NANTONG PRODUCT QUALITY SUPERVISION AND INSPECTION INSTITUTE; Jiangsu Vocational and Technical Shipping College
Current assignee: NANTONG PRODUCT QUALITY SUPERVISION AND INSPECTION INSTITUTE; Jiangsu Vocational and Technical Shipping College
Priority date: 2019-11-25
Filing date: 2019-11-25
Publication date: 2020-11-17
Anticipated expiration: 2029-11-25

Abstract

The utility model discloses a wire rope lax protector for corrosion test relates to wire rope tensile test experiment technical field, has solved the outside protector that does not have of current experimental apparatus, leads to in case wire rope breaks off in the experimentation, causes cracked wire rope to splash on one's body the experimenter easily, leads to the injured problem of experimenter. The test bed comprises a test bed, be equipped with the protective housing on the test bed, protective housing one side opening can be dismantled and be connected with the apron, protective housing, apron and test bed enclose into the test chamber, be equipped with the tensiometer in the test chamber, be connected with the wire rope that awaits measuring on the tensiometer, still be equipped with in the test chamber and be used for the pulling to await measuring the wire rope and carry out the pulling piece that tests. The effect of avoiding the fractured steel wire rope to splash to the body of a tester and improving the safety of the device when the steel wire rope is fractured is achieved.

Description

Protective device for steel wire rope relaxation corrosion test

Technical Field

The utility model relates to a wire rope tensile test experiment technical field, in particular to wire rope protector for corrosion test that relaxes.

Background

The steel wire rope is often used in the open air, the steel wire rope can gradually start to corrode when being blown by wind, exposed to the sun and rain, and particularly, the steel wire rope used in harmful gas and severe environment is more seriously damaged due to corrosion. The surface of the steel wire rope damaged by corrosion has difference of oxygen affinity, so that a part of the metal on the surface of the steel wire rope becomes an anode, and the other adjacent part of the metal becomes a cathode, thereby forming a large number of small cells. And then under the action of the small battery, a plurality of round corrosion pits are formed on the surface of the steel wire rope and are gradually deepened. These pits become stress concentration points, sources of fatigue cracks. At the same time, corrosion causes the cross-sectional area of the steel cord to decrease slowly, while the elasticity and the ability to withstand impact decrease.

In actual use, the influence of corrosion on the mechanical property of the steel wire rope far exceeds the influence of wire breakage and abrasion, so that a test machine is required to be used for carrying out tension detection on the steel wire rope with loose corrosion, but the outside of the existing experimental device is not provided with a protection device, so that once the steel wire rope is broken in the experimental process, the broken steel wire rope can be splashed onto the body of a tester to cause the tester to be injured, and therefore the protection device for the steel wire rope loose corrosion test is provided for solving the problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a wire rope corrosion test that relaxes uses protector, it can avoid cracked wire rope to splash tester's on one's body when wire rope breaks off, improves the security of device.

The above technical purpose of the present invention can be achieved by the following technical solutions:

the utility model provides a wire rope corrosion test that relaxes uses protector, includes the test bench, be equipped with the protective housing on the test bench, protective housing one side opening can be dismantled and be connected with the apron, protective housing, apron and test bench enclose into the test chamber, the test chamber is equipped with the tensiometer, is connected with the wire rope that awaits measuring on the tensiometer, and the test chamber still is equipped with and is used for the pulling piece that the wire rope that awaits measuring carries out the test.

Furthermore, the pulling part comprises a ball screw positioned in the test cavity, a driving motor used for driving the ball screw to rotate is arranged in the protective box, a screw nut is connected to the ball screw in a threaded manner and only connected in the test cavity in a sliding manner along the length direction of the ball screw, a fixed shaft is fixedly mounted at the top of the screw nut, and the fixed shaft is connected with a steel wire rope to be tested.

Furthermore, a guide rod parallel to the ball screw is arranged in the test cavity, and a fixed block sliding along the guide rod is arranged on the screw nut.

Furthermore, an L-shaped clamping shaft is arranged on the cover plate, the parallel side of the L-shaped clamping shaft is positioned at the lower side of the cover plate, and the vertical side of the L-shaped clamping shaft upwards penetrates to the upper side of the cover plate; the L-shaped clamping shaft is connected to the cover plate only in a sliding mode along the parallel edge direction of the L-shaped clamping shaft, and a clamping seat for inserting the parallel edge is arranged on the protective box.

Furthermore, a plurality of guide shafts parallel to the parallel sides of the L-shaped clamping shaft are connected to the cover plate, and the guide shafts penetrate through the vertical sides of the L-shaped clamping shaft.

Furthermore, a plurality of reset springs are arranged in the test cavity, the reset springs are connected with one side, away from the horizontal side, of the vertical side of the L-shaped clamping shaft, and the reset springs drive the L-shaped clamping shaft to slide towards the direction of the clamping seat.

Furthermore, the outer side of the ball screw is coaxially connected with a first belt pulley, the output shaft of the driving motor is coaxially connected with a second belt pulley, and the outer side of the first belt pulley and the outer side of the second belt pulley are in transmission connection with the same belt.

Furthermore, a through hole for observing the number of the tension meter is formed in the inner wall of one side of the protection box, and a visual window is fixedly installed in the through hole.

Furthermore, the top of the protection box is provided with a plurality of positioning grooves, and the bottom of the cover plate is provided with positioning blocks correspondingly matched with the positioning grooves.

Furthermore, a bearing is fixed in the test cavity, and one end of the ball screw extends to the inner ring of the bearing and is fixedly connected with the inner ring of the bearing.

To sum up, the utility model discloses following beneficial effect has:

the utility model discloses simple structure, the simple operation can carry out the tensile test to the wire rope of lax corruption through utilizing tensiometer and driving motor, and the guard box of setting then can prevent that wire rope from breaking off and causing cracked wire rope to splash on one's body the experimenter, and convenient to use is worth extensively promoting.

Drawings

FIG. 1 is a front view of the overall structure of a protective device for a steel wire rope relaxation corrosion test;

FIG. 2 is a cross-sectional view showing the internal structure of a protective device for a loose corrosion test of a steel wire rope;

FIG. 3 is an enlarged schematic view of the structure A of FIG. 2;

FIG. 4 is an enlarged schematic view of the structure B of FIG. 2;

fig. 5 is a plan view of a protective device for a slack corrosion test of a steel cord.

In the figure, 1, test stand; 2. a protective box; 3. a test chamber; 4. a tension meter; 5. a wire rope; 6. a fixed shaft; 7. a feed screw nut; 8. a ball screw; 9. a cover plate; 10. an L-shaped clamp shaft; 11. a return spring; 12. a fixing plate; 13. a card holder; 14. a first pulley; 15. a drive motor; 16. a drive shaft; 17. a belt; 18. a second pulley; 19. a visual window.

Detailed Description

The following description will be further described with reference to the accompanying drawings, which are not intended to limit the present invention.

The utility model provides a steel wire rope corrosion test that relaxes uses protector, as shown in fig. 1 and fig. 2, including horizontally

test bench

1, 1 top fixed mounting of test bench has top and the equal open-ended protective housing 2 in bottom, and the top demountable installation of protective housing 2 has apron 9, and in this embodiment, protective housing 2 and apron 9 separate, can take off protective housing 2 with apron 9 completely, and it also can articulate apron 9 on protective housing 2.

As shown in fig. 1 and 2, a test chamber 3 is enclosed by a protective box 2, a cover plate 9 and a test bed 1, a tension meter 4 is fixedly installed in the test chamber 3, a steel wire rope 5 to be tested is connected to the tension meter 4, and a pulling part for pulling the steel wire rope 5 to be tested to perform testing is further arranged in the test chamber 3. A through hole for observing the number of the tensiometer 4 and the state of the internal steel wire rope 5 is formed in the inner wall of one side of the protective box 2, and a visible window 19 is fixedly arranged in the through hole.

As shown in fig. 2, the pulling member includes a horizontal ball screw 8 located in the test chamber 3, and the tension meter 4 is located in a vertical plane where the ball screw is located, in this embodiment, the ball screw 8 is parallel to the length direction of the protective box 2, and one end of the ball screw is rotatably connected to the inner wall of the protective box 2, and the other end of the ball screw is rotatably connected to the top side of the test bed 1.

As shown in fig. 2 and 4, a driving motor 15 for driving the ball screw 8 to rotate is fixed at the top of the test bed 1, a screw nut 7 is connected to the ball screw 8 through a thread, the screw nut 7 is only connected to the test chamber 3 in a sliding manner along the length direction of the ball screw 8, a vertical fixing shaft 6 is fixedly installed at the top of the screw nut 7, and the fixing shaft 6 is connected with the steel wire rope 5 to be tested; the fixed shaft 6 comprises a winding drum for winding and fixing the steel wire rope 5 to be detected, and the winding drum is sleeved and fixed outside the fixed shaft 6. When the steel wire rope 5 loosened by corrosion needs to be subjected to tension test, the driving motor 15 can be used for driving the fixing shaft 6 to move, so that the fixing shaft 6 can pull the steel wire rope 5, the tension of the steel wire rope 5 can be tested, and the driving motor 15 can provide tension for the steel wire rope 5.

As shown in fig. 2, in order to guide the horizontal sliding of the screw nut 7, a guide bar parallel to the ball screw 8 is provided in the test chamber 3, and a fixing block sliding along the guide bar is provided on the screw nut 7.

As shown in fig. 3, an L-shaped clamping shaft 10 is arranged on the cover plate 9, the parallel side of the L-shaped clamping shaft 10 is located at the lower side of the cover plate 9 and is parallel to the cover plate 9, and the vertical side is upward and vertically penetrated to the upper side of the cover plate 9; the L-shaped clamping shaft 10 is connected on the cover plate 9 only along the parallel edge direction in a sliding way, and the protective box 2 is provided with a clamping seat 13 for inserting the parallel edge. When the cover plate 9 needs to be detached from the top of the protective box 2, the L-shaped clamping shaft 10 is pulled at the moment to be separated from the clamping seat 13, so that the braking on the cover plate 9 can be released, and the cover plate 9 can be detached from the protective box 2.

As shown in fig. 3 and 5, the two ends of the top of the protection box 2 are respectively provided with symmetrically arranged positioning slots, and the bottom of the cover plate 9 is provided with positioning blocks correspondingly adapted to the positioning slots. The positioning block and the positioning groove can enable the cover plate 9 to cover the designated position on the top of the protective box 2 without deviation. In this embodiment, 2 open-ended both sides in top of protective housing upwards extend and have vertical lock limit, and lid both sides downwardly extending respectively has vertical lid lock limit, and lid lock limit butt is in the vertical lock limit outside that corresponds, and cassette 13 is fixed in the vertical lock limit inboard that corresponds, and the constant head tank is seted up in the vertical lock limit top that corresponds, and the locating piece height is less than lid lock limit height setting.

As shown in fig. 3, in order to guide the sliding of the L-shaped shaft 10, a sliding groove is formed in the cover plate 9 for the vertical side of the L-shaped shaft 10 to pass through and slide, the width of the sliding groove is equal to the width of the vertical side of the L-shaped shaft 10, a guide shaft parallel to the parallel side of the L-shaped shaft 10 is connected in the sliding groove of the cover plate 9, and the guide shaft passes through the vertical side of the L-shaped shaft 10.

As shown in fig. 3, two horizontal return springs 11 are arranged in the test chamber 3, the return springs 11 are fixedly connected with one side of the vertical side of the L-shaped clamping shaft 10, which is far away from the horizontal side, the return springs 11 drive the L-shaped clamping shaft 10 to slide towards the clamping base 13, a vertical fixing plate 12 is fixed on the lower side of the cover plate 9, and one end of the return springs 11, which is far away from the L-shaped clamping shaft 10, is fixed with the fixing plate 12.

As shown in fig. 4, a first belt pulley 14 is coaxially connected to the outer side of the ball screw 8, a second belt pulley 18 is coaxially connected to the output shaft of the driving motor 15, and the same belt 17 is drivingly connected to the outer sides of the first belt pulley 14 and the second belt pulley 18.

As shown in fig. 4, a bearing is fixed in the test chamber 3, one end of the ball screw 8 extends to the inner ring of the bearing and is fixedly connected with the inner ring of the bearing, the outer ring of the bearing is fixed on the test bed 1 through a bearing seat, and the rotation friction force of the ball screw 8 can be reduced by the bearing.

When the device is used, firstly, two ends of a steel wire rope 5 are fixedly sleeved on a tension meter 4 and a fixed shaft 6 respectively, then an L-shaped clamping shaft 10 on a cover plate 9 is pulled to compress a reset spring 11, the cover plate 9 is clamped in a protective box 2, the L-shaped clamping shaft 10 is loosened, the L-shaped clamping shaft 10 and a clamping seat 13 are clamped under the reset elasticity of the reset spring 11, so that the cover plate 9 can be fixed at the top of the protective box 2, a tension test for testing the steel wire rope 5 is in a completely sealed space, when the steel wire rope 5 is tested, a driving motor 15 is started, the driving motor 15 drives a ball screw 8 to rotate, the ball screw 8 drives the fixed shaft 6 to move slowly and at a constant speed, so that one end of the steel wire rope 5 can be pulled by the fixed shaft 6, at the moment, the tension meter 4 can continuously display tension data for pulling the steel wire rope 5, and the experimenter can observe the tensile force data of the steel wire rope 5 through the visual window 19, and simultaneously in the tensile force test process of testing the steel wire rope 5, when the steel wire rope 5 breaks, the protection box 2 can be used for preventing the steel wire rope 5 from breaking in the test process and causing the broken steel wire rope 5 to splash to the experimenter's body.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and those skilled in the art can make various modifications or equivalent substitutions within the spirit and scope of the present invention, and such modifications or equivalent substitutions should also be considered as falling within the scope of the present invention.

Claims

1. The utility model provides a wire rope lax protector for corrosion test which characterized in that: the test bed comprises a test bed (1), be equipped with protective housing (2) on test bed (1), protective housing (2) one side opening can be dismantled and be connected with apron (9), protective housing (2), apron (9) and test bed (1) enclose into test chamber (3), be equipped with tensiometer (4) in test chamber (3), be connected with wire rope (5) that await measuring on tensiometer (4), still be equipped with in test chamber (3) and be used for the pulling to await measuring wire rope (5) and carry out the pulling piece that tests.

2. The protection device for the loose corrosion test of the steel wire rope according to claim 1, characterized in that: the pulling piece comprises a ball screw (8) located in the test cavity (3), a driving motor (15) used for driving the ball screw (8) to rotate is arranged in the protective box (2), a screw nut (7) is connected to the ball screw (8) in a threaded mode, the screw nut (7) is connected to the test cavity (3) only in a sliding mode in the length direction of the ball screw (8), a fixed shaft (6) is fixedly mounted at the top of the screw nut (7), and the fixed shaft (6) is connected with a steel wire rope (5) to be tested.

3. The protection device for the loose corrosion test of the steel wire rope according to claim 2, characterized in that: a guide rod parallel to the ball screw (8) is arranged in the test cavity (3), and a fixed block sliding along the guide rod is arranged on the screw nut (7).

4. The protector for testing slack corrosion of a steel cord according to claim 1 or 2, wherein: an L-shaped clamping shaft (10) is arranged on the cover plate (9), the parallel side of the L-shaped clamping shaft (10) is positioned at the lower side of the cover plate (9), and the vertical side upwards penetrates to the upper side of the cover plate (9); the L-shaped clamping shaft (10) is connected to the cover plate (9) only in a sliding mode along the parallel edge direction of the L-shaped clamping shaft, and a clamping seat (13) for inserting the parallel edge is arranged on the protective box (2).

5. The protection device for the loose corrosion test of the steel wire rope according to claim 4, characterized in that: the cover plate (9) is connected with a plurality of guide shafts parallel to the parallel sides of the L-shaped clamping shaft (10), and the guide shafts penetrate through the vertical sides of the L-shaped clamping shaft (10).

6. The protection device for the loose corrosion test of the steel wire rope according to claim 4, characterized in that: a plurality of reset springs (11) are arranged in the test cavity (3), the reset springs (11) are connected with one side, far away from the horizontal side, of the vertical side of the L-shaped clamping shaft (10), and the reset springs (11) drive the L-shaped clamping shaft (10) to slide towards the clamping seat (13).

7. The protection device for the loose corrosion test of the steel wire rope according to claim 2, characterized in that: the outer side of the ball screw (8) is coaxially connected with a first belt pulley (14), an output shaft of the driving motor (15) is coaxially connected with a second belt pulley (18), and the outer sides of the first belt pulley (14) and the second belt pulley (18) are in transmission connection with the same belt (17).

8. The protector for testing slack corrosion of a steel cord according to claim 1 or 2, wherein: a through hole for observing the number of the tension meter (4) is formed in the inner wall of one side of the protective box (2), and a visual window (19) is fixedly installed in the through hole.

9. The protector for testing slack corrosion of a steel cord according to claim 1 or 2, wherein: the top of the protection box (2) is provided with a plurality of positioning grooves, and the bottom of the cover plate (9) is provided with positioning blocks correspondingly matched with the positioning grooves.

10. The protector for testing slack corrosion of a steel cord according to claim 1 or 2, wherein: a bearing is arranged in the test cavity (3), the inner ring of the bearing is fixed outside the ball screw (8), and the outer ring of the bearing is fixed in the test cavity (3).