Rope bending tension test platform

Abstract

The utility model discloses a rope bending tension test platform which comprises a base, a fixing mechanism used for fixing a rope is arranged at one end of the top surface of the base, a tension mechanism used for fixing the other end of the rope is arranged at the other end of the top surface of the base, and a supporting frame used for bending the rope upwards is arranged in the middle of the top surface of the base; the base comprises a plurality of pedestals with I-shaped sections, connecting plates are vertically arranged at the two ends of the pedestals, a plurality of through holes are formed in the top faces and the two sides of the bottom faces of the pedestals and the two ends of the connecting plates, and the pedestals are in bolt connection through the through holes in the connecting plates. The rope bending strength testing platform has the advantages that the rope bending strength testing can be achieved through the fixing mechanism and the tensioning mechanism which are arranged at the two ends of the base respectively, the testing platform can well adapt to long-distance rope bending strength testing through the base formed by splicing the multiple pedestals, and the applicability of the platform is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rope testing, in particular to a rope bending and tensioning test platform. Background Art

[0002] The ropes used in the construction process need to be tested in advance to ensure that the ropes are still reliable under complex usage conditions. For example, the bending strength test is to detect the maximum tensile force that the rope can withstand in the bent state, ensuring that the bent position in actual use will not break due to excessive force.

[0003] Most of the existing rope testing devices perform linear tests over short distances and cannot perform bending strength tests on long-distance ropes. A rope bending and tensioning test platform is proposed to solve the above problems. Content of the Utility Model

[0004] In order to overcome the problem that most of the existing rope testing devices perform linear tests over short distances and cannot perform bending strength tests on long-distance ropes, the utility model provides a rope bending and tensioning test platform. The technical solution is as follows:

[0005] A rope bending and tensioning test platform includes a base. One end of the top surface of the base is provided with a fixing mechanism for fixing the rope, and the other end is provided with a tensioning mechanism for fixing the other end of the rope. And a support frame for bending the rope upward is arranged at the middle position of the top surface of the base; the base includes a plurality of pedestals with an I-shaped cross-section, and connecting plates are vertically arranged at both ends of the pedestal. A plurality of through holes are opened on both sides of the top surface, bottom surface of the pedestal and both ends of the connecting plate, and the plurality of pedestals are bolted through the through holes on the connecting plate.

[0006] Further, both the tensioning mechanism and the fixing mechanism include anchor fittings fixed on the top surface of the corresponding ends of the base. T-shaped plates are hinged at one ends of the anchor fittings at both ends of the base that are close to each other. The transverse plate of the T-shaped plate is connected with a limiting member through a plurality of long screw rods. The side surface of the limiting member away from the anchor fitting can be pin-connected with the end of the rope. A convex block is fixed on the side surface of the limiting member close to the rope, and a pin hole is opened on the convex block. Connecting heads are fixed at both ends of the rope, and the connecting heads are connected with the convex block by inserting a pin shaft into the pin hole.

[0007] Further, anti-loosening nuts are arranged at both ends of the long screw rod, and a pressure sensor is arranged between the transverse plate of the T-shaped plate and the anti-loosening nut on the long screw rod. The applied tension value can be obtained in real time through the pressure sensor.

[0008] Furthermore, the tensioning mechanism further includes a limit post slidably disposed at one end of the long screw away from the anchor. A U-shaped groove is formed on the side surface of the limit post. A limit nut is provided on the long screw, and the limit nut can abut against one side surface of the limit member connecting the rope. The limit nut is located inside the U-shaped groove, and one end of the limit post with an opening abuts against the side surface of the limit member. A jack is fixedly provided on the long screw, and one end of the movable shaft of the jack abuts against one end side surface of the limit post.

[0009] Furthermore, the anchor includes a pull rod fixed on the upper end surface of the base. One end of the pull rod is hinged to the vertical plate of the T-shaped plate, and a fixed rod is vertically provided at the other end of the pull rod, and the inner side surface of the fixed rod is fixedly connected to the side surface of one end of the base.

[0010] Furthermore, reinforcing rods are fixed on both side surfaces of the pull rod, and the reinforcing rods are bolted to the base.

[0011] Furthermore, the tensioning mechanism further includes a resistive displacement gauge. One end of the resistive displacement gauge is fixedly connected to the top surface of the T-shaped plate, and the other end is fixedly connected to the top surface of the limit member. Strain gauges are arranged on both the straight section and the bent section of the rope. The arrangement of the resistive displacement gauge and the strain gauges can contribute to the acquisition of test data on the bending strength of the rope.

[0012] Furthermore, the support frame includes a bottom plate bolted to the base. Support rods are arranged on both sides of the top surface of the bottom plate. A diagonal brace is connected between the two support rods on both sides. A support plate groove is fixed at the upper end of the support rod, and an arc-shaped cushion plate with a flat bottom surface is fixed in the support plate groove. The arc-shaped cushion plate can be disassembled to facilitate replacement when testing the rope with different bending degrees.

[0013] Furthermore, a number of heightening cushion plates are arranged between the bottom plate and the base. By increasing or decreasing the number of the heightening cushion plates, different turning angles of the rope can be further achieved when testing the rope with different bending degrees.

[0014] Furthermore, a reinforcing plate is fixed on the upper end surface of the base by bolts, and the reinforcing plate is located between the base and the anchor.

[0015] The beneficial effects of the technical solution provided by the present utility model are as follows: The test platform can realize the test of the bending strength of the rope through the fixing mechanism and the tensioning mechanism respectively arranged at both ends of the base. And the base formed by splicing a number of pedestals of the test platform can better adapt to the test of the bending strength of the long-distance rope. In addition, the platform can also realize the test of the rope with different bending degrees by arranging a number of heightening cushion plates and arc-shaped cushion plates, improving the applicability of the platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the accompanying drawings listed below are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0017] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the present utility model;

[0018] Figure 2 is Figure 1 an enlarged schematic diagram of the structure at position A in

[0019] Figure 3 is Figure 1 an enlarged schematic diagram of the structure at position B in

[0020] In the accompanying drawings, the list of components represented by each reference numeral is as follows: 1. Base; 101. Pedestal; 102. Connecting plate; 2. Fixing mechanism; 3. Tensioning mechanism; 4. Support frame; 401. Base plate; 402. Support rod; 403. Support plate groove; 404. Raising cushion plate; 5. Anchor; 501. Pull rod; 502. Fixed rod; 503. Reinforcing rod; 6. T-shaped plate; 7. Long screw; 8. Limiting part; 9. Rope; 10. Anti-loosening nut; 11. Pressure sensor; 12. Limiting column; 14. Jack; 15. Resistive displacement gauge; 16. Reinforcing plate. Specific embodiments

[0021] To make the purpose, technical solutions and advantages of the present utility model clearer, the embodiments of the present utility model will be further described in detail below in conjunction with the accompanying drawings.

[0022] See Figures 1 to 3 , the embodiment of the present utility model provides a rope bending tension test platform, including a base 1. One end of the top surface of the base 1 is provided with a fixing mechanism 2 for fixing the rope, and the other end is provided with a tensioning mechanism 3 for fixing the other end of the rope. And a support frame 4 for bending the rope upward is provided at the middle position of the top surface of the base 1; the base 1 includes a plurality of pedestals 101 with an I-shaped cross-section, and connecting plates 102 are vertically provided at both ends of the pedestal 101. A plurality of through holes are provided on both sides of the top surface, bottom surface and both ends of the connecting plate 102 of the pedestal 101, and the plurality of pedestals 101 are bolt-connected through the through holes on the connecting plate 102.

[0023] Both the tensioning mechanism 3 and the fixing mechanism 2 include an anchor 5 fixed on the corresponding end of the top surface of the base 1. T-shaped plates 6 are hinged at one end of the anchors 5 at both ends of the base 1 close to each other. The transverse plate of the T-shaped plate 6 is connected to a limiting part 8 through a plurality of long screws 7, and one side surface of the limiting part 8 away from the anchor 5 can be pin-connected to the end of the rope 9.

[0024] Anti-loosening nuts 10 are provided at both ends of the long screw rod 7, and a pressure sensor 11 is provided between the cross plate of the T-shaped plate 6 and the anti-loosening nut 10 on the long screw rod 7.

[0025] The tensioning mechanism 3 further includes a limit post 12 slidably disposed on one end of the long screw rod 7 away from the anchor 5. A U-shaped groove is formed on the side surface of the limit post 12. A limit nut is provided on the long screw rod 7, and the limit nut can abut against one side surface of the limit member 8 connecting the rope 9. The limit nut is located inside the U-shaped groove, and one open end of the limit post 12 abuts against the side surface of the limit member 8. A jack 14 is fixedly provided on the long screw rod 7, and one end of the movable shaft of the jack 14 abuts against one end side surface of the limit post 12.

[0026] The anchor 5 includes a pull rod 501 fixed to the upper end surface of the base 1. One end of the pull rod 501 is hinged to the vertical plate of the T-shaped plate 6, and a fixing rod 502 is vertically provided at the other end of the pull rod 501, and the inner side surface of the fixing rod 502 is fixedly connected to the side surface of one end of the base 1.

[0027] Reinforcing rods 503 are fixed to both side surfaces of the pull rod 501, and the reinforcing rods 503 are bolted to the base 1.

[0028] The tensioning mechanism 3 further includes a resistive displacement gauge 15. One end of the resistive displacement gauge 15 is fixedly connected to the top surface of the T-shaped plate 6, and the other end is fixedly connected to the top surface of the limit member 8. And strain gauges are provided on both the straight section and the bent section of the rope 9.

[0029] The support frame 4 includes a bottom plate 401 bolted to the base 1. Support rods 402 are provided on both sides of the top surface of the bottom plate 401. A diagonal brace is connected between the two support rods 402. The upper end of the support rod 402 is fixed with a support plate groove 403, and an arc-shaped cushion plate with a flat bottom surface is fixed in the support plate groove 403.

[0030] A number of heightening cushion plates 404 are provided between the bottom plate 401 and the base 1.

[0031] A reinforcing plate 16 is fixed to the upper end surface of the base 1 by bolts, and the reinforcing plate 16 is located between the base 1 and the anchor 5.

[0032] Usage method: When using this test platform, according to the length of the rope 9 to be tested, several pedestals 101 are spliced by bolts to obtain a base 1 with a suitable length. Then, the support frame 4 is also installed in the middle position of the base 1 by bolts. And according to the bending strength of the rope to be tested, several heightening pads 404 are placed between the bottom plate 401 and the base 1 for heightening, and then fixed by bolts. Subsequently, an arc-shaped pad with a suitable curvature is fixedly installed in the support plate groove 403. Then, both ends of the rope 9 to be tested are respectively connected to the limit pieces 8 at one end of the tensioning mechanism 3 and one end of the fixing mechanism 2 through pins. The middle section of the rope 9 is placed on the arc-shaped pad. And strain gauges are respectively fixed on the bending section of the rope and the straight sections on both sides thereof to collect test data. Then, the jack 14 at one end of the tensioning mechanism 3 is started for tensioning. After tensioning a certain distance, the jack 14 is stopped and the limit piece 8 is limited and fixed by screwing the limit nut in the U-shaped groove. Data is collected through the sensor 11, the resistive displacement gauge 15, the strain gauges, etc. In addition, the jack 14 can be started again to continue tensioning, and the limit piece 8 is limited and fixed again by the lower limit nut to collect relevant test data. The entire test is finally completed through several times of tensioning.

[0033] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A rope bending and tension testing platform, characterized in that It includes a base (1). At one end of the top surface of the base (1), a fixing mechanism (2) for fixing a rope is provided, and at the other end, a tensioning mechanism (3) for fixing the other end of the rope is provided. Moreover, at the middle position of the top surface of the base (1), a support frame (4) for bending the rope upward is provided. The base (1) includes a number of pedestal seats (101) with an I-shaped cross-section. And at both ends of the pedestal seat (101), connecting plates (102) are vertically arranged. A number of through holes are provided on both sides of the top surface, bottom surface of the pedestal seat (101) and at both ends of the connecting plate (102). The number of the pedestal seats (101) are bolted through the through holes on the connecting plate (102).

2. The rope bending and tensioning test platform according to claim 1, wherein Both the tensioning mechanism (3) and the fixing mechanism (2) include anchor fittings (5) fixed on the top surface of the corresponding end of the base (1). At one end of the anchor fittings (5) at both ends of the base (1) which are close to each other, a T-shaped plate (6) is hinged. The transverse plate of the T-shaped plate (6) is connected to a limiting member (8) through a number of long screw rods (7). The side surface of the limiting member (8) away from the anchor fitting (5) can be pin-connected with the end of the rope (9).

3. The rope bending and tensioning test platform according to claim 2, wherein Anti-loosening nuts (10) are arranged at both ends of the long screw rod (7). And a pressure sensor (11) is arranged between the transverse plate of the T-shaped plate (6) and the anti-loosening nut (10) on the long screw rod (7).

4. The rope bending and tensioning test platform according to claim 3, characterized in that The tensioning mechanism (3) further includes a limiting column (12) slidably arranged at one end of the long screw rod (7) away from the anchor fitting (5). A U-shaped groove is provided on the side surface of the limiting column (12). A limiting nut is arranged on the long screw rod (7), and the limiting nut can abut against the side surface of the limiting member (8) connecting the rope (9). The limiting nut is inside the U-shaped groove, and the open end of the limiting column (12) abuts against the side surface of the limiting member (8). A jack (14) is fixedly arranged on the long screw rod (7), and one end of the movable shaft of the jack (14) abuts against one end side surface of the limiting column (12).

5. The rope bending and tensioning test platform according to claim 2, wherein The anchor fitting (5) includes a pull rod (501) fixed on the upper end surface of the base (1). One end of the pull rod (501) is hinged to the vertical plate of the T-shaped plate (6). The other end of the pull rod (501) is vertically provided with a fixing rod (502), and the inner side surface of the fixing rod (502) is fixedly connected to the side surface of one end of the base (1).

6. The rope bending and tensioning test platform according to claim 5, characterized in that, Reinforcing rods (503) are fixed on both side surfaces of the pull rod (501), and the reinforcing rods (503) are bolted to the base (1).

7. The rope bending and tensioning test platform according to claim 2, characterized in that, The tensioning mechanism (3) further includes a resistive displacement gauge (15). One end of the resistive displacement gauge (15) is fixedly connected to the top surface of the T-shaped plate (6), and the other end is fixedly connected to the top surface of the limiting member (8). And strain gauges are arranged on both the straight section and the bent section of the rope (9).

8. The rope bending and tension testing platform according to claim 1, wherein, The support frame (4) includes a bottom plate (401) bolted to the base (1). On both sides of the top surface of the bottom plate (401), support rods (402) are provided. A diagonal brace is connected between the support rods (402) on both sides. The upper end of the support rod (402) is fixed with a support plate groove (403), and an arc-shaped cushion plate with a flat bottom surface is fixed in the support plate groove (403).

9. The rope bending and tensioning test platform according to claim 8, characterized in that, A number of heightening cushion plates (404) are provided between the bottom plate (401) and the base (1).

10. The rope bending and tensioning test platform according to claim 2, characterized in that, A reinforcing plate (16) is fixed to the upper end surface of the base (1) by bolts, and the reinforcing plate (16) is located between the base (1) and the anchor (5).

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