CN214472257U

CN214472257U - Testing equipment for wear resistance of traction rope for climbing

Info

Publication number: CN214472257U
Application number: CN202023347087.XU
Authority: CN
Inventors: 崔润刚; 张�杰; 张功明
Original assignee: Shandong Santong Rope Co ltd
Current assignee: Shandong Santong Rope Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-10-22
Anticipated expiration: 2030-12-31

Abstract

The utility model relates to a test device for the wear resistance of a traction rope for climbing, which comprises a base frame, wherein a friction simulation unit, a power unit and a gravity simulation unit are arranged on the base frame; the friction simulation unit comprises a support, the support is in sliding fit with a guide rail, the guide rail is arranged in the vertical direction, and the support is provided with a clamp; the power unit comprises a rotating wheel, the rotating wheel is arranged above the bracket and is connected with a transmission shaft, and the transmission shaft is connected with a motor; one side of the rotating wheel is connected with one end of a traction rope; the gravity simulation unit comprises a guide wheel set and a weight component, and the weight component is connected with one end of the gravity rope. The utility model discloses can accurately carry out analysis and sign to the friction action of haulage rope in the use for the climbing, realize the simultaneous test research to a plurality of variables such as rope length in rope sliding speed, rope tension, rope bending angle, friction region and the region, through measuring the wearability of haulage rope under the variable condition for the climbing to optimize the production technology of haulage rope for the climbing.

Description

Testing equipment for wear resistance of traction rope for climbing

Technical Field

The utility model relates to a climbing is with haulage rope wear resistance's test equipment.

Background

The traction rope for climbing is a high-performance rope used for connecting anchor points and protecting personnel safety, has the characteristics of high breaking strength, low static elongation, excellent wear resistance and the like, and mainly has the structure of 16-twill weaved, 24-twill weaved and 32-twill weaved. The rope can be damaged due to repeated stretching, bending, friction and the like in the using process; among them, the reciprocal contact and friction between ropes and metal fittings, ropes and contact objects (tree skins, wall edges, etc.), ropes and ropes are the most major factors causing damage to the traction ropes for climbing, especially the contact sliding friction and the contact variable angle friction. In order to accurate sign at reciprocating motion friction in-process, the wearing feature of haulage rope under different tension, different speed, different bending angle, different contact surface is used in the climbing, the utility model provides a simple, efficient climbing haulage rope wearing feature's equivalent test device.

The Chinese patent with the patent name of chemical fiber rope abrasion resistance tester (CN208239236U) discloses a chemical fiber rope abrasion resistance tester, which can adjust the tension of a rope in real time through a rope movable seat with a tension meter so as to adapt to abrasion tests with different tensions; meanwhile, the friction roller is subjected to height adjustment through a bottom lifting platform, so that the friction roller is convenient to attach to an experimental rope; but the abrasion resistance test of the rope under different speeds, different bending angles and different contact surfaces cannot be realized.

The Chinese patent named rope antifriction performance testing device (CN202433270U) discloses a rope antifriction performance testing device, which can realize radial and axial friction tests of a rope by the transverse reciprocating movement of a lower clamp holder and the up-down movement of an upper clamp holder within a certain range; however, the patent has a limited adjusting range of the pre-tension applied in the axial direction due to the upper and lower limits of the moving space of the clamper, and can not realize a real equivalent test.

The Chinese patent with the patent name of 'a fire safety rope axial wear resistance testing device' (CN207066909U) discloses a fire safety rope axial wear resistance testing device, which can realize uninterrupted friction of a testing rope on the edge of a testing platform at different speeds by adjusting the winding speed of a driving motor and realize the test of the wear resistance of the tested rope under different forces by adjusting an adjusting rod of a guide pressing device; however, effective and accurate tension control and speed control cannot be achieved, and the stability of the device is not high.

SUMMERY OF THE UTILITY MODEL

The utility model provides a haulage rope wear resistance's test equipment for climbing, this equipment can accurately carry out analysis and sign to the friction action of haulage rope in the use for the climbing, realizes the test research in the time of a plurality of variables such as rope sliding speed, rope tension, rope bending angle, friction region and regional interior rope length, has solved the problem that exists among the prior art.

The utility model discloses a solve the technical scheme that above-mentioned technical problem adopted and be: a test equipment of haulage rope wearability for climbing includes:

the device comprises a base frame, a friction simulation unit, a power unit and a gravity simulation unit, wherein the friction simulation unit, the power unit and the gravity simulation unit are arranged on the base frame;

the friction simulation unit comprises a support, the support is in sliding fit with a guide rail, the guide rail is arranged in the vertical direction, the support is provided with a clamp, a cutting edge is formed at the bottom of the clamp, two reversing wheels are symmetrically arranged on two sides of the clamp, the reversing wheels are connected with the support through a fixed shaft, and the distance between the two reversing wheels and the clamp can be adjusted;

the power unit comprises a rotating wheel, the rotating wheel is arranged above the bracket and is connected with a transmission shaft, and the transmission shaft is connected with a motor; one side of the rotating wheel is connected with one end of a traction rope, the traction rope is sequentially wound along the circumferential surface of the rotating wheel and then extends downwards to pass through the two reversing wheels and the clamp, and the other end of the traction rope extends upwards to be connected to the other side of the rotating wheel, so that the traction rope and the cutting edge of the clamp are enabled to interact; the motor is connected with the speed reducer, the speed reducer is connected with the transmission shaft to adjust the rotating speed of the rotating wheel, and the motor can set forward rotation and reverse rotation;

the gravity simulation unit comprises a guide wheel set and a weight component, the weight component is connected with one end of a gravity rope, and the other end of the gravity rope is connected to the bottom of the support after passing through the guide wheel set.

Further, the fixture comprises a height adjusting assembly, wherein the height adjusting assembly is connected with the support, the fixture is connected with the height adjusting assembly, and the height adjusting assembly is used for adjusting the height position of the fixture.

Further, the height adjusting assembly comprises a supporting plate, a guide rod, a height adjusting bolt and a clamp seat, the supporting plate is connected with the support, the clamp seat is arranged below the supporting plate, one end of the clamp seat is connected with one end of the guide rod, the other end of the guide rod penetrates through the supporting plate, the height adjusting bolt is connected with the supporting plate through threads, and the bottom of the height adjusting bolt penetrates through the supporting plate and then is connected with the clamp seat.

Furthermore, a spring is arranged outside the guide rod between the supporting plate and the clamp seat.

Furthermore, the support comprises a horizontal support and a vertical support which are connected with each other, the vertical support is matched with the guide rail, and the horizontal support is connected with the support plate.

Furthermore, the horizontal support is provided with a sliding groove, two ends of a fixed shaft of the reversing wheel are connected with the adjusting seat, the adjusting seat is matched with the sliding groove, and the adjusting seat is provided with a positioning bolt.

Furthermore, wire clamping holes are formed in two sides of the rotating wheel and used for connecting and fixing the end portions of the traction ropes.

Furthermore, the position that the terminal surface of runner is close to the wire clamping hole is equipped with the retaining member, the retaining member is used for connecting the locking the haulage rope.

Furthermore, the top of the guide rod penetrates through the supporting plate and then is connected with a limiting part, the supporting plate is provided with a through hole for the guide rod to penetrate through, and the size of the limiting part is larger than the diameter size of the through hole in the radial direction of the through hole.

Further, when the clamp is located at a high point, and the cutting edge and the bottom of the reversing wheel are located at the same horizontal height, the bending angle of the traction rope is 0 degree; when the clamp is positioned at a low point and the distance between the two reversing wheels and the clamp is adjusted, the bending angle of the traction rope ranges from 90 degrees to 180 degrees.

Further, the guide wheel group includes first leading wheel, second leading wheel, third leading wheel and fourth leading wheel, first leading wheel sets up the below of support, the second leading wheel is on a parallel with the setting of first leading wheel, the third leading wheel sets up the lateral part top position of support, just the third leading wheel with the arrangement direction looks vertical setting of first leading wheel, the fourth leading wheel is on a parallel with the setting of third leading wheel, the gravity rope passes first leading wheel, second leading wheel, third leading wheel and fourth leading wheel in proper order and then hangs down and connect the weight subassembly.

The beneficial effects of the above structure are that, this equipment can accurately carry out analysis and sign to the friction action of haulage rope in the use for the climbing, realizes the simultaneous test research to a plurality of variables such as rope sliding speed, rope tension, rope bending angle, friction region and regional interior rope length. By measuring the wear resistance of the traction rope for climbing under variable conditions, the production process of the traction rope for climbing can be optimized, the abrasion in the process of working procedures is reduced, and the guidance and reference of performance indexes of the traction rope can be provided for rope users.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic view of the structure of the present invention.

Fig. 3 is a schematic view of the partial structure of the weight assembly and the guide wheel set of the present invention.

Fig. 4 is a schematic view of a partial structure of the friction simulation unit of the present invention.

Fig. 5 is a schematic view of a partial structure of the power unit of the present invention.

Fig. 6 is a schematic diagram of a partially enlarged structure of the present invention.

In the figure, 1, a base frame;

2. a friction simulation unit; 201. a support; 2011. a horizontal support; 2012. a vertical support; 202. a guide rail; 203. a clamp; 204. a reversing wheel; 205. a fixed shaft; 206. an adjusting seat; 207. positioning the bolt;

3. a power unit; 301. a rotating wheel; 3011. a wire clamping hole; 3012. a locking member; 302. a drive shaft; 303. a motor; 304. a hauling rope; 305. a speed reducer;

4. a gravity simulation unit; 401. a guide wheel set; 4011. a first guide wheel; 4012. a second guide wheel; 4013. a third guide wheel; 4014. a fourth guide wheel; 402. a weight component; 403. a gravity line;

5. a height adjustment assembly; 501. a support plate; 502. a guide bar; 503. a height adjustment bolt; 504. a clamp seat; 505. a spring; 506. a limiting part.

Detailed Description

In order to clearly illustrate the technical features of the present invention, the present invention is explained in detail by the following embodiments in combination with the accompanying drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited by the specific embodiments disclosed below.

In addition, in the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on those shown in the drawings, are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

As shown in fig. 1-6, a test device for wear resistance of a traction rope for climbing comprises a base frame 1, wherein a friction simulation unit 2, a power unit 3 and a gravity simulation unit 4 are arranged on the base frame 1; the friction simulation unit 2 comprises a support 201, the support 201 is in sliding fit with a guide rail 202, the guide rail 202 is arranged along the vertical direction, the support 201 is provided with a clamp 203, a cutting edge is formed at the bottom of the clamp 203, two reversing wheels 204 are symmetrically arranged on two sides of the clamp 203, the reversing wheels 204 are connected with the support 201 through a fixed shaft 205, and the distance between the two reversing wheels 204 and the clamp 203 is adjustable; the power unit 3 comprises a rotating wheel 301, the rotating wheel 301 is arranged above the bracket 201, the rotating wheel 301 is connected with a transmission shaft 302, and the transmission shaft 302 is connected with a motor 303; one side of the rotating wheel 301 is connected with one end of a pulling rope 304, the pulling rope 304 sequentially winds along the circumferential surface of the rotating wheel 301 and then extends downwards to pass through the two reversing wheels 204 and the clamp 203, and the other end of the pulling rope 304 extends upwards to be connected with the other side of the rotating wheel 301, so that the pulling rope 304 and the cutting edge of the clamp 203 interact; the gravity simulation unit 4 comprises a guide wheel set 401 and a weight assembly 402, wherein the weight assembly 402 is connected with one end of a gravity rope 403, and the other end of the gravity rope 403 is connected with the bottom of the bracket 201 after passing through the guide wheel set 401. Through the installation design of the guide wheel set 401, the weight assembly 402 is suspended in a proper position inside the base frame 1.

It is emphasized that the cutting edges of the clamp 203 may be arranged in an axial direction parallel to the wheel 301. The pull cord 304 is caused to move in cooperation with each other along the wheel 301 and the cutting edge of the clamp 203.

In a preferred embodiment, the motor 303 is a servo motor, or the motor 303 is connected to the transmission shaft 302 via a speed reducer 305 to adjust the rotation speed of the rotating wheel 301, and the motor 303 is set by the controller to repeatedly rotate forward and backward, so that the support 201 reciprocates along the guide rail 202 within a set range, and a friction test is performed on the traction rope 304.

Alternatively, limit switches are respectively arranged at the upward position and the downward position of the guide rail 202, and when the bracket triggers the limit switches in the movement process, the controller can switch the rotation direction of the motor 303 and can also realize that the bracket 201 reciprocates in a set range along the guide rail 202.

When the device is used, the traction rope 304 is repeatedly released and contracted through the forward and reverse rotation of the rotating wheel 301 of the power unit 3, the traction rope 304 drives the bracket 201 of the friction simulation unit 2 to move up and down along the guide rail 202, the traction rope 304 and the cutting edge of the clamp 203 are in mutual friction action through the two reversing wheels 204 in the movement process, and the traction rope 304 can be wound on the surface of the rotating wheel 301, namely the traction rope can be displaced along the axial direction of the rotating wheel 301 in the repeated release and contraction process, so that the traction rope 304 moves along the cutting edge direction of the clamp 203, the axial wear resistance test and the radial cut resistance test of the tested traction rope 304 are simultaneously carried out, and the performance of resisting the cutting friction at different positions of the traction rope 304 is simulated; in addition, different angles between the cutting edges of the traction rope 304 and the clamp 203 can be simulated by adjusting the distance between the two reversing wheels 204 and the clamp 203, so that the performance of the traction rope 304 can be tested more comprehensively; in addition, the pulling force of the traction rope 304 in actual work is simulated through the gravity simulation component 2, the weight is controlled through the weight component 402, the gravity rope 304 transmits the gravity of the weight component 402 to the bottom of the support 201 along the guide wheel set 401, the downward gravity is increased along the vertical direction of the movement of the support 201, the traction weight of the traction rope 304 is adjusted more flexibly, and the tensile property of the traction rope 304 is tested comprehensively by matching with the friction simulation unit 2. The device can accurately analyze and characterize the friction behavior of the traction rope 304 for climbing in the using process, and can simultaneously test and research a plurality of variables such as rope sliding speed, rope tension, rope bending angle, friction area and rope length in the area. By measuring the wear resistance of the traction rope for climbing under variable conditions, the production process of the traction rope for climbing can be optimized, the abrasion in the process of working procedures is reduced, and the guidance and reference of performance indexes of the traction rope can be provided for rope users.

In the preferred embodiment, the height adjusting assembly 5 is further included, the height adjusting assembly 5 is connected with the bracket 201, the clamp 203 is connected with the height adjusting assembly 5, and the height adjusting assembly 5 is used for adjusting the height position of the clamp 203. Through the height adjustment subassembly 5 that increases, make anchor clamps 203 obtain adjusting in vertical direction's position, can cooperate the reverse wheel 204 of both sides, make the angle modulation scope between the cutting edge of haulage rope 304 and anchor clamps 203 bigger, test range is wider.

In a preferred embodiment, the height adjusting assembly 5 comprises a supporting plate 501, a guiding rod 502, a height adjusting bolt 503 and a clamp base 504, wherein the supporting plate 501 is connected with the bracket 201, the clamp base 504 is arranged below the supporting plate 501, the clamp base 504 is connected with one end of the guiding rod 502, the other end of the guiding rod 502 penetrates through the supporting plate 501, the height adjusting bolt 503 is connected with the supporting plate 501 in a threaded manner, and the bottom of the height adjusting bolt 503 penetrates through the supporting plate 501 and then is connected with the clamp base 504. When the device is used, the supporting plate 501 is connected with the support 201, the position of the supporting plate relative to the support 201 is unchanged, the clamp seat 504 is driven to move by rotating the height adjusting bolt 503, and the positions of the reversing wheels 204 on the two opposite sides of the clamp 203 are changed to adjust the angles of the traction rope 304 and the cutting edge.

It can be understood that the height adjusting bolt 503 is disposed in the middle of the clamp seat 504, at least two guide rods 502 are symmetrically disposed on two sides of the height adjusting bolt, the stability of the clamp seat 504 can be increased by the arrangement of the guide rods 502, the stability of the traction rope 304 and the cutting edge in the mutual friction process is ensured, and the connection damage caused by the overlarge stress on the connection position of the height adjusting bolt 503 and the clamp seat 504 when the traction rope 304 and the cutting edge of the clamp 203 rub against each other is avoided.

In the preferred embodiment, a spring 505 is provided outside the guide rod 502 between the support plate 501 and the clamp mount 504. The spring 505 is added outside the guide rod 502 to establish an elastic supporting relationship between the two end portions of the jig holder 504 and the support plate 501, thereby further improving the stability of the jig holder 504 and the jig 203.

In the preferred embodiment, the support 201 includes a horizontal support 2011 and a vertical support 2012 connected to each other, the vertical support 2012 cooperates with the rail 202, and the horizontal support 2011 is connected to the support plate 501.

In a preferred embodiment, the horizontal bracket 2011 is provided with a sliding slot, two ends of the fixed shaft 205 of the reversing wheel 204 are connected with the adjusting seat 206, the adjusting seat 206 is matched with the sliding slot, and the adjusting seat 206 is provided with a positioning bolt 207. The adjusting seat 206 establishes a position locking relationship with the chute of the horizontal bracket 2011 through the positioning bolt 207, and the chute structural design of the horizontal bracket 2011 facilitates the assembly and adjustment of the adjusting seat 206 and other structures, and is convenient to install and use.

In the preferred embodiment, the two sides of the rotating wheel 301 are provided with wire clamping holes 3011, and the wire clamping holes 3011 are used for connecting and fixing the ends of the pulling rope 304. The two ends of the pulling rope 304 can pass through the wire clamping holes 3011 for banding fixation.

In a preferred embodiment, a locking member 3012 is arranged at a position, close to the wire clamping hole 3011, on the end surface of the rotating wheel 301, and the locking member 3012 is used for connecting and locking the traction rope 304. The retaining member 3012 further added can lock the end of the pulling rope 304, can directly adopt a commercially available product in the prior art, is convenient to use, does not need to tie up and tie off the pulling rope 304, and is more convenient and quicker in the testing process.

In a preferred embodiment, the top of the guide rod 502 is connected with a limiting part 506 after passing through the support plate 501, the support plate 501 is provided with a through hole for the guide rod 502 to pass through, and the size of the limiting part 506 is larger than the diameter size of the through hole in the radial direction of the through hole. In this embodiment, the guide rod 502 and the jig holder 504 are protected by the structure of the stopper portion 506, and the guide rod 502 is prevented from being separated from the support plate 501 by adjusting the height position of the jig holder 504 too much, so that the guide rod 502 and the support plate 501 can be always kept in a connected relationship.

When the clamp 203 is positioned at a high point, so that the cutting edge and the bottom of the reversing wheel 204 are positioned at the same horizontal height, the bending angle of the traction rope 304 is 0 degree; when the clamp 203 is located at a low point and the distance between the two diverting pulleys 204 and the clamp 203 is adjusted, the bending angle of the traction rope 304 ranges from 90 ° to 180 °.

The clamp 203 is embedded in the mounting groove of the clamp seat 504; the adjustment of the effective height can be determined by the distance between the height adjusting bolt 503 and the clamp seat 504, when the distance is 0, the position of the clamp 203 is at the lowest point; when this distance is at a maximum, the position of the clamp 203 is at the highest point;

when the clamp 203 is at the highest point of the position, the bending angle of the tested traction rope 304 is 0 degree;

when the clamp 203 is at the lowest point of the position, the bending angle of the tested pulling rope 304 is between 90 and 180 degrees, and the friction cutting state of the pulling rope 304 under different bending angles can be simulated.

In a preferred embodiment, the guide wheel group 401 includes a first guide wheel 4011, a second guide wheel 4012, a third guide wheel 4013 and a fourth guide wheel 4014, the first guide wheel 4011 is disposed below the support 201, the second guide wheel 4012 is disposed in parallel with the first guide wheel 4011, the third guide wheel 4013 is disposed at a position above the side portion of the support 201, the arrangement direction of the third guide wheel 4013 and the first guide wheel 4011 is perpendicular, the fourth guide wheel 4014 is disposed in parallel with the third guide wheel 4013, and the gravity rope 403 is connected with the weight assembly 402 in a downward hanging manner after sequentially passing through the first guide wheel 4011, the second guide wheel 4012, the third guide wheel 4013 and the fourth guide wheel 4014.

In a preferred embodiment, the circumferential surface of the wheel 301 is provided with a helical groove, allowing the traction rope 304 to wind along the groove. The rope groove structure is not shown in the drawings and can be understood by those skilled in the art.

The above-mentioned specific embodiments can not be regarded as the restriction to the scope of protection of the utility model, to technical personnel in this technical field, it is right the utility model discloses any replacement improvement or transform that embodiment made all fall within the scope of protection of the utility model.

The parts of the present invention not described in detail are the known techniques of those skilled in the art.

Claims

1. The utility model provides a climbing is with haulage rope wear resistance's test equipment which characterized in that includes:

2. The device for testing the wear resistance of the traction rope for climbing is characterized by further comprising a height adjusting assembly, wherein the height adjusting assembly is connected with the support, the clamp is connected with the height adjusting assembly, and the height adjusting assembly is used for adjusting the height position of the clamp.

3. The device for testing the wear resistance of the traction rope for climbing is characterized in that the height adjusting assembly comprises a supporting plate, a guide rod, a height adjusting bolt and a clamp seat, the supporting plate is connected with the support, the clamp seat is arranged below the supporting plate and connected with one end of the guide rod, the other end of the guide rod penetrates through the supporting plate, the height adjusting bolt is in threaded connection with the supporting plate, and the bottom of the height adjusting bolt penetrates through the supporting plate and then is connected with the clamp seat.

4. The apparatus for testing wear resistance of a climbing traction rope according to claim 3, wherein a spring is arranged outside the guide rod between the support plate and the clamp seat.

5. The apparatus for testing wear resistance of a traction rope for climbing according to claim 3, wherein the bracket comprises a horizontal bracket and a vertical bracket which are connected with each other, the vertical bracket is matched with the guide rail, and the horizontal bracket is connected with the support plate.

6. The device for testing the wear resistance of the traction rope for climbing according to claim 5, wherein the horizontal support is provided with a sliding groove, two ends of a fixed shaft of the reversing wheel are connected with an adjusting seat, the adjusting seat is matched with the sliding groove, and the adjusting seat is provided with a positioning bolt.

7. The device for testing the wear resistance of the traction rope for climbing according to claim 1, wherein wire clamping holes are formed in two sides of the rotating wheel and used for connecting and fixing the ends of the traction rope.

8. The device for testing the wear resistance of the traction rope for climbing according to claim 7, wherein a locking member is arranged at a position, close to the wire clamping hole, of the end surface of the rotating wheel, and the locking member is used for connecting and locking the traction rope.

9. The device for testing the wear resistance of the traction rope for climbing according to claim 3, wherein a limiting part is connected to the top of the guide rod after passing through the support plate, the support plate is provided with a through hole for the guide rod to pass through, and the size of the limiting part is larger than the diameter of the through hole in the radial direction of the through hole.

10. The apparatus for testing wear resistance of a traction rope for climbing according to claim 2, wherein when the clamp is located at a high point, the cutting edge and the bottom of the reversing wheel are located at the same horizontal height, the bending angle of the traction rope is 0 °; when the clamp is positioned at a low point and the distance between the two reversing wheels and the clamp is adjusted, the bending angle of the traction rope ranges from 90 degrees to 180 degrees.