Wear resistance testing equipment and method for braid

Abstract

The invention discloses braid wear resistance testing equipment and method.The braid wear resistance testing equipment comprises a fixed vertical frame, a testing frame, a reciprocating type traction mechanism, a testing braid, a synchronous driving mechanism, multiple sets of pneumatic switching mechanisms, multiple sets of testing wheel assemblies and a controller, the testing frame is fixedly connected to the surface of the fixed vertical frame, and a U-shaped testing groove is formed in the surface of the testing frame; the reciprocating traction mechanism is arranged on the inner wall of the U-shaped test groove, the test braid is arranged on the reciprocating traction mechanism, the synchronous driving mechanism is arranged on the inner wall of the test frame, the pneumatic switching mechanisms are arranged on the inner wall of the test frame, the test wheel assemblies are arranged on the pneumatic switching mechanisms, and the controller is fixedly connected to the surface of the test frame. Therefore, the device can synchronously drive a plurality of groups of friction wheels to carry out wear resistance detection on the surface of the tested braid at different friction rates, the whole process does not need to be stopped for adjustment, the test period is greatly shortened, the detection efficiency and accuracy are remarkably improved, the comprehensiveness and reliability of a test result are ensured, and the use effect is good.

Description

Technical Field

[0001] The present invention relates to the technical field of webbing testing, and in particular to a wear resistance testing device and method for webbing. Background Art

[0002] In the current textile and manufacturing industries, the wear resistance of webbing is one of the important indicators for evaluating its quality and durability. Webbing is widely used in many fields such as car seat belts, luggage straps, industrial conveyor belts, etc. Therefore, testing its wear resistance is particularly important. However, existing webbing testing machines generally have problems such as complex operation and low testing efficiency when performing wear resistance tests.

[0003] Most of the webbing wear test equipment currently on the market uses a single friction wheel to perform friction tests on the webbing, and can usually only be set to a fixed friction rate. To test the wear resistance of the webbing at different speeds, the tester must manually stop the machine, readjust the friction position of the webbing, reset the friction rate, and then start the test again. This operation method is not only laborious and time-consuming, but also prone to human error, affecting the accuracy and reliability of the test results.

[0004] In addition, frequent shutdown and startup of the test machine will cause unnecessary wear and tear on the equipment itself, shortening the service life of the equipment. At the same time, since the test process needs to be interrupted and restarted many times, the total time required for the test is increased, reducing the test efficiency. Summary of the Invention

[0005] The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

[0006] To this end, the purpose of the present invention is to propose a wear resistance testing device and method for webbing. This device can synchronously drive multiple sets of friction wheels to perform wear resistance testing on the test webbing surface at different friction rates. There is no need to stop for adjustment throughout the process, which greatly shortens the test cycle, significantly improves the detection efficiency and accuracy, ensures the comprehensiveness and reliability of the test results, and at the same time, by reducing the number of equipment starts and stops, it also effectively improves the service life of the equipment, and has excellent use effect.

[0007] In order to achieve the above-mentioned purpose, the present invention proposes a wear resistance testing device for a webbing, comprising a fixed stand, a test frame, a reciprocating traction mechanism, a test webbing, a synchronous drive mechanism, multiple groups of pneumatic switching mechanisms, multiple groups of test wheel assemblies and a controller, wherein the fixed stand is horizontally arranged on the ground, the test frame is fixedly connected to the surface of the fixed stand, a U-shaped test groove is opened on the surface of the test frame, the reciprocating traction mechanism is arranged on the inner wall of the U-shaped test groove, and the test webbing is arranged on the reciprocating traction mechanism; the synchronous drive mechanism is arranged on the inner wall of the test frame and is connected to the reciprocating traction mechanism, and multiple groups of the pneumatic switching mechanisms are respectively arranged It is arranged on the inner wall of the test frame and on one side of the synchronous drive mechanism. Multiple groups of test wheel assemblies are respectively arranged on multiple groups of pneumatic switching mechanisms. One end of multiple groups of test wheel assemblies is respectively connected to the synchronous drive mechanism, and the other ends of multiple groups of test wheel assemblies are respectively passed through the rectangular through groove into the interior of the U-shaped test groove and contact with the surface of the test webbing; the controller is fixedly connected to the surface of the test frame, and the controller adopts a standardized power plug to seamlessly connect to the external power supply. The controller is respectively connected to the synchronous drive mechanism and multiple groups of pneumatic switching mechanisms through a control bus to realize precise command transmission and comprehensive monitoring of the equipment operation status.

[0008] In addition, the wear resistance testing device for a webbing proposed in the application may also have the following additional technical features:

[0009] Specifically, the reciprocating traction mechanism includes an upper traction slide, an upper limit guide roller, a lower limit guide roller, a lower traction slide, a locking device and a buckle, wherein the upper traction slide, the upper limit guide roller, the lower limit guide roller and the lower traction slide are arranged in clockwise order on the inner wall of the U-shaped test groove, and the locking devices are respectively arranged on the surface of the upper traction slide and the surface of the lower traction slide, and the buckle is fixedly connected to the two end surfaces of the test webbing, one end of the test webbing is clamped and fixed to the locking device on the upper traction slide through one group of the buckles, and the other end of the test webbing is wrapped around the surface of the upper limit guide roller and the surface of the lower limit guide roller, and is clamped and fixed to the locking device on the lower traction slide through another group of the buckles.

[0010] Specifically, the synchronous drive mechanism includes a dual-axis motor, a first transmission rod, a second transmission rod, a first bevel gear, a second bevel gear, an upper reciprocating screw rod, a lower reciprocating screw rod, a third bevel gear, a fourth bevel gear, a fifth bevel gear, a sixth bevel gear and a transmission sleeve, wherein the dual-axis motor is fixedly connected to the inner wall of the test frame, an encoder is fixedly connected to the surface of the dual-axis motor, and the controller is connected to the dual-axis motor and the encoder respectively through a control bus to achieve accurate command transmission and comprehensive monitoring of the equipment operation status; the first transmission rod and the second transmission rod are respectively rotatably connected to the inner wall of the test frame and are located on the outside of the dual-axis motor, and the surface of the output end of the dual-axis motor is connected to the surface of the first transmission rod and the encoder. The first bevel gear and the second bevel gear are respectively provided at corresponding positions on the surface of the second transmission rod and mesh with each other, the upper reciprocating screw rod and the lower reciprocating screw rod are respectively rotatably connected to the inner wall of the test frame and are located at the outside of the second transmission rod, one end of the upper reciprocating screw rod and one end of the lower reciprocating screw rod respectively correspond to the top end of the first transmission rod and the bottom end of the first transmission rod, the third bevel gear and the fourth bevel gear are respectively provided at the top end of the first transmission rod corresponding to the surface position of one end of the upper reciprocating screw rod and the bottom end of the first transmission rod corresponding to the surface position of one end of the lower reciprocating screw rod, and mesh with each other; the fifth bevel gear is evenly fixedly connected to the outer surface of the second transmission rod, The sixth bevel gear is evenly rotatably connected to the inner wall of the test frame and meshes with the fifth bevel gear, the transmission sleeve is evenly rotatably connected to the inner wall of the test frame and is fixedly connected to one end of the central shaft of the sixth bevel gear; the fifth bevel gear and the sixth bevel gear are each provided with nine groups, and the nine groups of gears adopt three different tooth module ratio strategies to match the transmission requirements of low speed, medium speed and high speed respectively; the pneumatic switching mechanism includes a bidirectional screw, a rotating drum, a driving rod, a cam, a spiral guide groove and a single-acting cylinder, wherein the bidirectional screw is rotatably connected to the inner wall of the test frame, and the test wheel assembly is arranged on the bidirectional screw; the rotating drum is rotatably connected to the inner wall of the test frame and meshes with one end of the bidirectional screw The cam is fixedly connected, and the driving rod is horizontally slidably connected to the inner wall of the rotating drum. One end of the driving rod is located inside the rotating drum and is fixedly connected to the cam shaft. The spiral guide groove is provided on the surface of the rotating drum corresponding to the position of the cam shaft. One end of the cam shaft is located inside the spiral guide groove and is slidably connected to the inner wall of the spiral guide groove. The other end of the driving rod passes through the outside of the rotating drum and is fixedly connected to the output end of the single-acting cylinder fixedly connected to the inner wall of the test frame. The single-acting cylinder is connected to the output end of the external gas source through a gas conduit. A solenoid valve is provided on the gas conduit. The controller is connected to multiple groups of solenoid valves through a control bus to achieve precise command transmission and comprehensive monitoring of the equipment operation status.

[0011] Specifically, the test wheel assembly includes a first slide, a second slide, a transmission key rod, a conical friction transmission wheel, a traditional key cylinder, a friction wheel and a wheel drive mechanism, wherein the first slide and the second slide are respectively threadedly connected to the outer surface of the bidirectional screw and slidably connected to the inner wall of the test frame, the transmission key rod is rotatably connected to the inner wall of the first slide, the conical friction transmission wheel is fixedly connected to the outer surface of one end of the transmission key rod, one end of the conical friction transmission wheel is located inside the transmission sleeve and contacts with the inner wall of the transmission sleeve, the traditional key cylinder is rotatably connected to the outer surface of one end of the second slide, the wheel drive mechanism is arranged inside the second slide, and one end of the traditional key cylinder is slidably connected to the The outer surface of one end of the transmission key rod, the other end of the traditional key cylinder passes through the interior of the second slide and is connected to one end of the wheel drive mechanism, the friction wheel is rotatably connected to the outer surface of the other end of the second slide, one end of the central axis of the friction wheel passes through the interior of the second slide and is connected to one end of the wheel drive mechanism, the friction wheel passes through the interior of the U-shaped test slot through the rectangular through groove and contacts the surface of the test webbing; the pneumatic switching mechanism, the test wheel assembly and the transmission sleeve are equal in number, and the friction wheels are provided in nine groups, and the nine groups of friction wheels are made of three different materials, which are respectively for metal friction wheels, rubber friction wheels and PVC friction wheels.

[0012] Specifically, the wheel drive mechanism includes a seventh bevel gear, an eighth bevel gear, a first gear and a second gear, wherein the seventh bevel gear is rotatably connected to the inner wall of the second slide and fixedly connected to one end of the traditional key cylinder, the first gear and the second gear are respectively rotatably connected to the inner wall of the second slide and mesh with each other, the eighth bevel gear is fixedly connected to the surface of the first gear and meshes with the seventh bevel gear, and the second gear is fixedly connected to one end of the center axis of the friction wheel.

[0013] Specifically, it also includes an air control mechanism, which includes a box body, an air inlet end, an exhaust end, a threaded screw, a vent seat and a connecting groove, wherein the box body is fixedly connected to the inner wall of the test frame, and a partition is provided inside the box body, and the interior of the box body is divided into an air inlet main chamber and an adjusting chamber with the partition as the boundary. One end of the air inlet end is fixedly connected to the surface of one side of the box body and is connected to the interior of the air inlet main chamber, and the other end of the air inlet end passes through the outside of the test frame and is connected to the external air supply main pipe. The exhaust end is evenly fixedly connected to the surface of the other side of the box body and is connected to the interior of the adjusting chamber. Multiple groups of the exhaust ends are respectively connected to multiple groups of the single-acting cylinders through air guide hoses. Connection; the partition surface is evenly provided with connecting holes, the number of the connecting holes is equal to the exhaust end head, and the positions correspond to each other, and the total air intake chamber is connected to the interior of the regulating chamber through the connecting holes; the threaded screw is rotatably connected to the inner wall of the regulating chamber, and the vent seat is evenly threadedly connected to the outer surface of the threaded screw and slidably connected to the inner wall of the regulating chamber, the shape of the vent seat is adapted to the internal size of the regulating chamber, and the connecting groove is provided on the surface of the vent seat, one end of the threaded screw passes through the bottom of the box body and is fixedly connected to the third gear, the bottom of the first transmission rod is fixedly connected to the fourth gear, and is connected to the third gear through a toothed synchronous belt; the vent seat is provided with three groups.

[0014] Specifically, it also includes multiple groups of tension adjustment mechanisms, which are respectively arranged on the inner wall of the U-shaped test groove and correspond to the position of the friction wheel; the tension adjustment mechanism includes a detection frame, a first hydraulic adjustment frame, a second hydraulic adjustment frame, a first adjustment roller, a second adjustment roller and a tension sensor, wherein the detection frame is fixedly connected to the inner wall of the U-shaped test groove, the first hydraulic adjustment frame and the second hydraulic adjustment frame are respectively fixedly connected to the surface of the detection frame, the first adjustment roller and the second adjustment roller are respectively fixedly connected to the surface of the first hydraulic adjustment frame and the surface of the second hydraulic adjustment frame, and are located on the outside of the friction wheel, the tension sensor is respectively fixedly connected to the surface of the first adjustment roller and the surface of the second adjustment roller, and is in contact with the surface of the test webbing; the controller is connected to multiple groups of tension sensors through a control bus to achieve precise command transmission and comprehensive monitoring of the equipment operation status.

[0015] A method for using a webbing wear test device, applied to a webbing wear test device, comprises the following steps:

[0016] S1: Connect the standardized power plug to an external power source;

[0017] S2: Install the test webbing by first winding the test webbing around the upper limit guide roller surface and the lower limit guide roller surface, and then respectively connecting and fixing the two sets of buckles to the locking device on the upper traction slide and the locking device on the lower traction slide;

[0018] S3: starting the device through the controller, and the device runs to perform a wear resistance test on the test webbing;

[0019] S4: After the wear resistance test is completed, the test ribbon is removed, the device is turned off, and the standardized power plug is unplugged.

[0020] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned through practice of the present invention.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. This device can synchronously drive multiple sets of friction wheels to perform wear resistance testing on the test webbing surface at different friction rates without stopping the machine for adjustment. This greatly shortens the test cycle, significantly improves the test efficiency and accuracy, and ensures the comprehensiveness and reliability of the test results. In particular, by reducing the number of equipment starts and stops, the service life of the equipment is effectively extended, and the use effect is excellent;

[0023] 2. This device introduces a variety of friction wheel material options. Compared with the limitations of traditional single-material friction wheels, this design can more accurately simulate the complex conditions in actual use scenarios. The use of multiple friction wheel materials makes the wear resistance test of the test webbing surface more comprehensive and in-depth, effectively improving the wide applicability and reliability of the test results, and providing more solid data support for product quality assessment;

[0024] 3. This device is equipped with a pneumatic switching mechanism, which realizes the instant switching and precise transmission construction of friction wheels of various materials. Users can easily complete the replacement of friction wheel types with simple operations without tedious manual adjustments, which greatly improves the convenience and flexibility of test operations. This innovative design not only simplifies the test process, but also further ensures the continuity and efficiency of the test process, and has excellent use effects.

[0025] 4. This device is equipped with an air control mechanism that can automatically and accurately control the instant switching of friction wheels made of various materials according to the preset test progress, completely abandoning the traditional manual switching method, greatly saving time and labor costs. At the same time, this automated switching process ensures the continuity and stability of the test, further improving the accuracy and reliability of the test, and bringing users a more efficient and convenient user experience;

[0026] 5. This device is equipped with a tension adjustment mechanism, which plays a key role in improving test accuracy and stability. By finely adjusting the tension, the mechanism can ensure that the test webbing always maintains an appropriate tension state during the transmission process, effectively avoiding slippage caused by insufficient tension and vibration problems caused by excessive tension, thereby significantly improving transmission efficiency. Stable tension not only ensures the smooth operation of the test webbing on the transmission path, but also reduces deviations or failures that may be caused by uneven tension, and further improves the accuracy of the test. This optimization measure makes the test results more reliable and can more realistically reflect the actual wear resistance of the test webbing, providing users with a high-quality evaluation basis. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0028] Figure 1 This is a schematic structural diagram of a wear resistance testing device and method for a webbing according to the present invention;

[0029] Figure 2 This is a schematic structural diagram of an air control mechanism in a wear-resistant testing device and method for a webbing according to the present invention;

[0030] Figure 3 This is a schematic structural diagram of a synchronous drive mechanism in a wear-resistant testing device and method for a webbing according to the present invention;

[0031] Figure 4 This is a schematic structural diagram of a pneumatic switching mechanism in a webbing wear resistance testing device and method according to the present invention;

[0032] Figure 5 This is a schematic structural diagram of a test wheel assembly in a wear-resistant testing device and method for a webbing according to the present invention;

[0033] Figure 6 This is a schematic diagram of the friction wheel structure in a wear resistance testing device and method for a webbing according to the present invention;

[0034] Figure 7 This is a schematic diagram of the structure of the vent seat in a wear-resistant testing device and method for a webbing according to the present invention;

[0035] Figure 8 The figure is a schematic structural diagram of a tension adjustment mechanism in a wear resistance testing device and method for a webbing according to the present invention.

[0036] As shown in the figure:

[0037] 1. Fixed stand; 2. Test frame; 3. Reciprocating traction mechanism; 4. Test webbing; 5. Synchronous drive mechanism; 6. Pneumatic switching mechanism; 7. Test wheel assembly; 8. Controller; 81. Standardized power plug; 21. U-shaped test slot; 22. Rectangular through slot;

[0038] 31. Upper traction slide; 32. Upper limit guide roller; 33. Lower limit guide roller; 34. Lower traction slide; 35. Locking device; 36. Buckle;

[0039] 51. Dual-axis motor; 52. First transmission rod; 53. Second transmission rod; 54. First bevel gear; 55. Second bevel gear; 56. Upper reciprocating screw; 57. Lower reciprocating screw; 58. Third bevel gear; 59. Fourth bevel gear; 510. Fifth bevel gear; 511. Sixth bevel gear; 512. Transmission sleeve; 50. Encoder;

[0040] 61. Bidirectional screw; 62. Rotating drum; 63. Driving rod; 64. Cam shaft; 65. Spiral guide groove; 66. Single-acting cylinder;

[0041] 71. First slide; 72. Second slide; 73. Transmission key rod; 74. Conical friction transmission wheel; 75. Conventional key cylinder; 76. Friction wheel; 77. Wheel drive mechanism; 761. Metal friction wheel; 762. Rubber friction wheel; 763. PVC friction wheel; 771. Seventh bevel gear; 772. Eighth bevel gear; 773. First gear; 774. Second gear.

[0042] 9. Air control mechanism; 91. Box body; 92. Partition; 93. Air intake chamber; 94. Adjustment chamber; 95. Air intake terminal; 96. Exhaust terminal; 97. Threaded screw; 98. Ventilation seat; 99. Connecting groove; 961. Air guide hose; 920. Connecting hole; 910. Third gear; 911. Fourth gear; 912. Toothed timing belt;

[0043] 10. Tension adjustment mechanism; 101. Detection frame; 102. First hydraulic adjustment frame; 103. Second hydraulic adjustment frame; 104. First adjustment roller; 105. Second adjustment roller; 106. Tension sensor. DETAILED DESCRIPTION

[0044] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention and are not to be construed as limiting the present invention. On the contrary, the embodiments of the present invention include all variations, modifications, and equivalents that fall within the spirit and scope of the appended claims.

[0045] The following describes a wear resistance testing device and method for a webbing according to an embodiment of the present invention in conjunction with the accompanying drawings.

[0046] like Figures 1-8 As shown, a wear resistance testing device for a webbing according to an embodiment of the present invention comprises a fixed stand 1, a test frame 2, a reciprocating traction mechanism 3, a test webbing 4, a synchronous drive mechanism 5, multiple sets of pneumatic switching mechanisms 6, multiple sets of test wheel assemblies 7 and a controller 8, wherein the fixed stand 1 is horizontally arranged on the ground, the test frame 2 is fixedly connected to the surface of the fixed stand 1, a U-shaped test groove 21 is opened on the surface of the test frame 2, the reciprocating traction mechanism 3 is arranged on the inner wall of the U-shaped test groove 21, and the test webbing 4 is arranged on the reciprocating traction mechanism 3; the synchronous drive mechanism 5 is arranged on the inner wall of the test frame 2 and is connected to the reciprocating traction mechanism 3, and the multiple sets of pneumatic switching mechanisms 6 are divided into They are respectively arranged on the inner wall of the test frame 2 and on one side of the synchronous drive mechanism 5. The multiple groups of test wheel assemblies 7 are respectively arranged on the multiple groups of pneumatic switching mechanisms 6. One end of the multiple groups of test wheel assemblies 7 is respectively connected to the synchronous drive mechanism 5, and the other ends of the multiple groups of test wheel assemblies 7 are respectively passed through the rectangular through grooves 22 into the interior of the U-shaped test groove 21 and in contact with the surface of the test webbing 4; the controller 8 is fixedly connected to the surface of the test frame 2, and the controller 8 adopts a standardized power plug 81 to seamlessly connect to the external power supply. The controller 8 is respectively connected to the synchronous drive mechanism 5 and the multiple groups of pneumatic switching mechanisms 6 through the control bus to realize accurate command transmission and comprehensive monitoring of the equipment operation status.

[0047] It should be noted that the controller 8 described in this embodiment is prior art and will not be described in detail here.

[0048] Specifically, when in use, the test webbing 4 is fixed on the reciprocating traction mechanism 3. After the fixation is completed, the synchronous drive mechanism 5 is started through the controller 8. The operation of the synchronous drive mechanism 5 synchronously drives the reciprocating traction mechanism 3 to operate. The reciprocating traction mechanism 3 pulls the two ends of the test webbing 4 back and forth to make the test webbing 4 reciprocate. After observing that the test webbing 4 is running stably, the pneumatic switching mechanism 6 corresponding to the metal friction wheel 761 is started through the controller 8. The operation of the pneumatic switching mechanism 6 drives the metal friction wheel 761 to move into the U-shaped test groove 21 and contact the surface of the test webbing 4. At the same time, the operation of the pneumatic switching mechanism 6 also drives the test wheel assembly 7 containing the metal friction wheel 761 to move with the synchronous drive mechanism 5. The force connection enables the metal friction wheel 761 to be driven and rotated. The rotating metal friction wheel 761 contacts the surface of the test ribbon 4 and performs a wear test on the surface of the test ribbon 4. The synchronous drive mechanism 5 adopts three different tooth module ratio strategies to match the transmission requirements of low speed, medium speed and high speed respectively. Therefore, three groups of metal friction wheels 761 of the same material can perform wear tests on different positions on the surface of the test ribbon 4 at different speeds without stopping the operation, which greatly improves the test efficiency. After the test of the metal friction wheel 761 is completed, the controller 8 starts the pneumatic switching mechanism 6 corresponding to the rubber friction wheel 762 to operate, and the pneumatic switching mechanism 6 drives the rubber friction wheel 762 to move into the U-shaped test slot 2 1 inside and in contact with the surface of the test webbing 4. At the same time, the operation of the pneumatic switching mechanism 6 also drives the test wheel assembly 7 containing the rubber friction wheel 762 to establish a power connection with the synchronous drive mechanism 5, so that the rubber friction wheel 762 can be driven to rotate. The rotating rubber friction wheel 762 contacts the surface of the test webbing 4 and performs a wear test on the surface of the test webbing 4. The synchronous drive mechanism 5 adopts three different tooth module ratio strategies to match the transmission requirements of low speed, medium speed and high speed respectively. Therefore, three groups of rubber friction wheels 762 of the same material can also perform wear tests on the surface of the test webbing 4 at different speeds without stopping the operation, which greatly improves the test efficiency. After the metal friction wheel 761 is tested Afterwards, the controller 8 starts the pneumatic switching mechanism 6 corresponding to the PVC material friction wheel 763, and the pneumatic switching mechanism 6 drives the PVC material friction wheel 763 to move into the U-shaped test slot 21 and contact the surface of the test webbing 4. At the same time, the pneumatic switching mechanism 6 also drives the test wheel assembly 7 containing the PVC material friction wheel 763 to establish a power connection with the synchronous drive mechanism 5, so that the PVC material friction wheel 763 is driven to rotate. The rotating PVC material friction wheel 763 contacts the surface of the test webbing 4 and performs a wear resistance test on the surface of the test webbing 4. The synchronous drive mechanism 5 adopts three different tooth module ratio strategies to match the transmission requirements of low speed, medium speed and high speed respectively. Therefore,Three sets of PVC friction wheels 763, made of the same material, can also perform wear resistance tests on the surface of the test webbing 4 at different speeds, just like the metal friction wheels 761 and 763, without requiring any downtime. This greatly improves test efficiency and significantly enhances detection efficiency and accuracy, ensuring the comprehensiveness and reliability of test results. Furthermore, by reducing the number of equipment starts and stops, the service life of the equipment is effectively extended, resulting in excellent performance.

[0049] In one embodiment of the present invention, Figure 1-Figure 2 As shown, the reciprocating traction mechanism 3 includes an upper traction slide 31, an upper limit guide roller 32, a lower limit guide roller 33, a lower traction slide 34, a locking device 35 and a buckle 36, wherein the upper traction slide 31, the upper limit guide roller 32, the lower limit guide roller 33 and the lower traction slide 34 are arranged in clockwise order on the inner wall of the U-shaped test groove 21, the locking device 35 is respectively arranged on the surface of the upper traction slide 31 and the surface of the lower traction slide 34, the buckle 36 is fixedly connected to the two end surfaces of the test webbing 4, one end of the test webbing 4 is clamped and fixed with the locking device 35 on the upper traction slide 31 through one group of buckles 36, and the other end of the test webbing 4 is wrapped around the surface of the upper limit guide roller 32 and the surface of the lower limit guide roller 33, and is clamped and fixed with the locking device 35 on the lower traction slide 34 through another group of buckles 36.

[0050] It should be noted that the locking device 35 and the buckle 36 described in this embodiment are consistent with the structure and operating principle of the seat belt lock and seat belt buckle on existing vehicles.

[0051] It is understandable that the upper traction slide 31 and the lower traction slide 34 are respectively slidably connected to the inner wall of the U-shaped test slot 21, and the upper limit guide roller 32 and the lower limit guide roller 33 are respectively fixedly connected to the inner wall of the U-shaped test slot 21.

[0052] Specifically, the structure and connection relationship of the reciprocating traction mechanism 3 are further explained. The reciprocating traction mechanism 3 can drive the test ribbon 4 to reciprocate, and by simulating actual usage conditions, the detection accuracy is improved, the comprehensiveness and reliability of the test results are ensured, and the use effect is good.

[0053] In one embodiment of the present invention, Figure 2-Figure 3As shown, the synchronous drive mechanism 5 includes a dual-axis motor 51, a first transmission rod 52, a second transmission rod 53, a first bevel gear 54, a second bevel gear 55, an upper reciprocating screw rod 56, a lower reciprocating screw rod 57, a third bevel gear 58, a fourth bevel gear 59, a fifth bevel gear 510, a sixth bevel gear 511 and a transmission sleeve 512, wherein the dual-axis motor 51 is fixedly connected to the inner wall of the test frame 2, an encoder 50 is fixedly connected to the surface of the dual-axis motor 51, and the controller 8 is connected to the dual-axis motor 51 and the encoder 50 respectively through the control bus to achieve accurate command transmission and comprehensive monitoring of the equipment operation status; the first transmission rod 52 and the second transmission rod 53 are respectively rotatably connected to the inner wall of the test frame 2 and are located on the outside of the dual-axis motor 51, and the dual-axis motor 51 outputs A first bevel gear 54 and a second bevel gear 55 are respectively provided at the positions corresponding to the positions of the end surfaces of the first transmission rod 52 and the second transmission rod 53, and mesh with each other. The upper reciprocating screw rod 56 and the lower reciprocating screw rod 57 are respectively rotatably connected to the inner wall of the test frame 2 and are located on the outside of the second transmission rod 53. One end of the upper reciprocating screw rod 56 and one end of the lower reciprocating screw rod 57 correspond to the top end of the first transmission rod 52 and the bottom end of the first transmission rod 52 respectively. A third bevel gear 58 and a fourth bevel gear 59 are respectively provided at the position corresponding to the surface position of one end of the first transmission rod 52 and the surface position of the bottom end of the first transmission rod 52 and the surface position of one end of the lower reciprocating screw rod 57, and mesh with each other; the fifth bevel gear 510 is evenly fixedly connected to the second transmission rod 53 outer surface, the sixth bevel gear 511 is evenly rotated and connected to the inner wall of the test frame 2, and meshes with the fifth bevel gear 510, the transmission sleeve 512 is evenly rotated and connected to the inner wall of the test frame 2, and is fixedly connected to one end of the central axis of the sixth bevel gear 511; the fifth bevel gear 510 and the sixth bevel gear 511 are each provided with nine groups, and the nine groups of gears adopt three different tooth module ratio strategies to match the transmission requirements of low speed, medium speed and high speed respectively; the pneumatic switching mechanism 6 includes a bidirectional screw 61, a rotating drum 62, a driving rod 63, a cam 64, a spiral guide groove 65 and a single-acting cylinder 66, among which the bidirectional screw 61 is rotatably connected to the inner wall of the test frame 2, and the test wheel assembly 7 is arranged on the bidirectional screw 61; the rotating drum 62 is rotatably connected to the inner wall of the test frame 2 , and is fixedly connected to one end of the bidirectional screw rod 61, the driving rod 63 is horizontally slidably connected to the inner wall of the rotating cylinder 62, one end of the driving rod 63 is located inside the rotating cylinder 62, and is fixedly connected to a convex shaft 64, a spiral guide groove 65 is provided on the surface of the rotating cylinder 62 corresponding to the position of the convex shaft 64, one end of the convex shaft 64 is located inside the spiral guide groove 65, and is slidably connected to the inner wall of the spiral guide groove 65, the other end of the driving rod 63 passes through the outside of the rotating cylinder 62, and is fixedly connected to the output end of a single-acting cylinder 66 fixedly connected to the inner wall of the test frame 2, the single-acting cylinder 66 is connected to the output end of the external gas source through a gas conduit, and a solenoid valve is provided on the gas conduit. The controller 8 is connected to multiple groups of solenoid valves through a control bus to achieve precise command transmission and comprehensive monitoring of the equipment operation status.

[0054] Specifically, the structure and connection relationship of the synchronous drive mechanism 5 and the pneumatic switching mechanism 6 are further explained. The synchronous drive mechanism 5 can not only drive the reciprocating traction mechanism 3 to operate, but also drive multiple groups of friction wheels 76 of the same material to perform wear resistance detection on the surface of the test ribbon 4 at different friction rates without stopping the operation, which greatly improves the test efficiency. The pneumatic switching mechanism 6 can not only change the transmission relationship between the synchronous drive mechanism 5 and the test wheel assembly 7, but also change the position of the friction wheel 76, which is convenient for rapid switching of friction wheels 76 of different materials, and has a good use effect. Specifically, when in use, the dual-axis motor 51 operates according to the instruction, and the dual-axis motor 51 rotates through the first bevel gear 54 and the second bevel gear 55 to cooperate with each other, synchronously driving the first transmission rod 52 and the second transmission rod 53 to rotate, the first transmission rod 52 rotates synchronously to drive the third bevel gear 58 to rotate, the third bevel gear 58 rotates synchronously to drive the fourth bevel gear 59 to rotate, and the fourth bevel gear 59 rotates to drive the upper reciprocating screw rod 56 and the lower reciprocating screw rod 57 to rotate respectively. Since the upper traction slide 31 moves in the same direction on the upper reciprocating screw rod 56 as the lower traction slide 34 moves in the same direction on the lower reciprocating screw rod 57, The movement directions on the screw rod 57 are opposite, so the movement of the upper traction slide 31 and the movement of the lower traction slide 34 will synchronously pull the two ends of the test ribbon 4, realizing stable reciprocating motion of the test ribbon 4, with good use effect. The rotation of the second transmission rod 53 synchronously drives multiple sets of fifth bevel gears 510 to rotate, the rotation of the fifth bevel gear 510 synchronously drives the rotation of the sixth bevel gear 511, and the rotation of the sixth bevel gear 511 synchronously drives the transmission sleeve 512 to rotate. Since the gears adopt three different tooth module ratio strategies, they match the transmission requirements of low speed, medium speed and high speed respectively; therefore, different Wear resistance testing under friction rate does not require shutdown operation, greatly improves work efficiency, and has good use effect. When the friction wheel 76 of set material needs to be tested for wear resistance, the solenoid valve opens according to the instruction, and the single-acting cylinder 66 is ventilated and operated. The operation of the single-acting cylinder 66 drives the drive rod 63 to move toward the inside of the rotating drum 62, and the movement of the drive rod 63 synchronously drives the cam 64 to move. The movement of the cam 64 synchronously drives the rotating drum 62 to rotate by cooperating with the spiral guide groove 65. The rotation of the rotating drum 62 synchronously drives the bidirectional screw rod 61 to rotate, and the rotation of the bidirectional screw rod 61 synchronously drives the test wheel assembly 7 to move.

[0055] In one embodiment of the present invention, Figure 5As shown, the test wheel assembly 7 includes a first slide 71, a second slide 72, a transmission key rod 73, a conical friction transmission wheel 74, a traditional key cylinder 75, a friction wheel 76 and a wheel drive mechanism 77, wherein the first slide 71 and the second slide 72 are respectively threadedly connected to the outer surface of the bidirectional screw 61 and slidably connected to the inner wall of the test frame 2, the transmission key rod 73 is rotatably connected to the inner wall of the first slide 71, the conical friction transmission wheel 74 is fixedly connected to the outer surface of one end of the transmission key rod 73, one end of the conical friction transmission wheel 74 is located inside the transmission sleeve 512 and contacts the inner wall of the transmission sleeve 512, the traditional key cylinder 75 is rotatably connected to the outer surface of one end of the second slide 72, the wheel drive mechanism 77 is arranged inside the second slide 72, and one end of the traditional key cylinder 75 is slidably connected On the outer surface of one end of the transmission key rod 73, the other end of the traditional key cylinder 75 passes through the interior of the second slide 72 and is connected to one end of the wheel drive mechanism 77. The friction wheel 76 is rotatably connected to the outer surface of the other end of the second slide 72. One end of the central axis of the friction wheel 76 passes through the interior of the second slide 72 and is connected to one end of the wheel drive mechanism 77. The friction wheel 76 passes through the interior of the U-shaped test slot 21 through the rectangular through slot 22 and contacts the surface of the test webbing 4; the number of pneumatic switching mechanisms 6, test wheel assemblies 7 and transmission sleeves 512 is equal, and there are nine groups of friction wheels 76. The nine groups of friction wheels 76 are made of three different materials, and the three materials are respectively for metal friction wheels 761, rubber friction wheels 762 and PVC friction wheels 763.

[0056] Specifically, the rotation of the bidirectional screw rod 61 drives the first slide 71 and the second slide 72 to move synchronously outward. The movement of the first slide 71 synchronously drives the transmission key rod 73 and the conical friction transmission wheel 74 to move. The movement of the second slide 72 synchronously drives the traditional key cylinder 75, the friction wheel 76 and the wheel drive mechanism 77 to move. When the friction wheel 76 contacts the surface of the test webbing 4, the conical friction transmission wheel 74 synchronously enters the inner wall of the transmission sleeve 512 and is in close contact with the inner wall of the transmission sleeve 512. When the transmission sleeve 512 rotates, the conical friction transmission wheel 74 also rotates synchronously through friction transmission. The rotation of the conical friction transmission wheel 74 cooperates with the transmission key rod 73 and the traditional key cylinder 75 to synchronously drive the wheel drive mechanism 77 to operate. The operation of the wheel drive mechanism 77 synchronously drives the friction wheel 76 to rotate, and the wear resistance test of the surface of the test webbing 4 is performed.

[0057] In one embodiment of the present invention, Figure 5As shown, the wheel drive mechanism 77 includes a seventh bevel gear 771, an eighth bevel gear 772, a first gear 773 and a second gear 774, wherein the seventh bevel gear 771 is rotatably connected to the inner wall of the second slide 72 and is fixedly connected to one end of the traditional key cylinder 75, the first gear 773 and the second gear 774 are respectively rotatably connected to the inner wall of the second slide 72 and mesh with each other, the eighth bevel gear 772 is fixedly connected to the surface of the first gear 773 and meshes with the seventh bevel gear 771, and the second gear 774 is fixedly connected to one end of the center axis of the friction wheel 76.

[0058] Specifically, the rotation of the traditional key cylinder 75 synchronously drives the seventh bevel gear 771 to rotate, the rotation of the seventh bevel gear 771 synchronously drives the eighth bevel gear 772 and the first gear 773 to rotate, the rotation of the first gear 773 synchronously drives the second gear 774 to rotate, and the rotation of the second gear 774 synchronously drives the friction wheel 76 to rotate.

[0059] In one embodiment of the present invention, Figure 2 and Figure 7 As shown, it also includes an air control mechanism 9, which includes a box body 91, an air inlet end 95, an exhaust end 96, a threaded screw 97, a vent seat 98 and a connecting groove 99, wherein the box body 91 is fixedly connected to the inner wall of the test frame 2, and a partition 92 is provided inside the box body 91, and the interior of the box body 91 is divided into an air inlet main chamber 93 and an adjustment chamber 94 with the partition 92 as the boundary. One end of the air inlet end 95 is fixedly connected to the surface of one side of the box body 91 and is connected to the interior of the air inlet main chamber 93, and the other end of the air inlet end 95 passes through the outside of the test frame 2 and is connected to the external air supply main pipe, and the exhaust end 96 is evenly fixedly connected to the surface of the other side of the box body 91 and is connected to the interior of the adjustment chamber 94. Multiple groups of exhaust ends 96 are respectively connected to multiple groups of single-acting cylinders 6 through air guide hoses 961. 6 are connected; connecting holes 920 are evenly opened on the surface of the partition 92, and the number of connecting holes 920 is equal to that of the exhaust end head 96, and the positions correspond to each other. The total air intake chamber 93 is connected to the inside of the regulating chamber 94 through the connecting holes 920; the threaded screw 97 is rotatably connected to the inner wall of the regulating chamber 94, and the vent seat 98 is evenly threaded on the outer surface of the threaded screw 97 and slidably connected to the inner wall of the regulating chamber 94. The shape of the vent seat 98 is adapted to the internal size of the regulating chamber 94, and a connecting groove 99 is opened on the surface of the vent seat 98. One end of the threaded screw 97 passes through the bottom of the box body 91 and is fixedly connected to the third gear 910. The bottom of the first transmission rod 52 is fixedly connected to the fourth gear 911, and is connected to the third gear 910 through a toothed synchronous belt 912; there are three groups of vent seats 98.

[0060] It should be noted that the exhaust end heads 96 and the communicating holes 920 described in this embodiment are provided in nine groups, corresponding to the friction wheels 76 of three different materials.

[0061] It can be understood that when the main air inlet cavity 93, the connecting hole 920, the connecting groove 99 and the exhaust end 96 are connected, the three sets of friction wheels 76 of the same material are synchronously moved into the U-shaped test groove 21 and contact the surface of the test ribbon 4.

[0062] Specifically, the structure and connection relationship of the air control mechanism 9 are further explained. When in use, the first transmission rod 52 rotates synchronously to drive the fourth gear 911 to rotate. The fourth gear 911 rotates synchronously through the toothed synchronous belt 912 to drive the third gear 910 and the threaded screw 97 to rotate. The threaded screw 97 rotates to drive the three groups of ventilation seats 98 to move downward synchronously. When the connecting grooves 99 on the three groups of ventilation seats 98 are respectively connected with the connecting holes 920 and the exhaust end 96, the pneumatic switching mechanism 6 corresponding to the friction wheels 76 of the same material is triggered, and synchronously drives the three groups of friction wheels 76 of the same material to move synchronously into the U-shaped test slot 21 and contact with the surface of the test webbing 4. As the threaded screw 97 continues to rotate, when the connecting grooves 99 on the three groups of ventilation seats 98 are once again respectively connected with the connecting holes 920 and the exhaust end 96 When connected, the pneumatic switching mechanism 6 corresponding to another friction wheel 76 of the same material is triggered, and the pneumatic switching mechanism 6 corresponding to the previous friction wheel 76 of the same material is cut off and stops running, and is reset under the action of its own built-in spring force. When the connecting grooves 99 on the three groups of vent seats 98 are once again connected with the connecting holes 920 and the exhaust end head 96 respectively, the pneumatic switching mechanism 6 corresponding to the third friction wheel 76 of the same material is triggered, and the pneumatic switching mechanism 6 corresponding to the second friction wheel 76 of the same material is cut off and stops running, and is reset under the action of its own built-in spring force. By changing the position of the vent seat 98, the connecting grooves 99 are connected to the connecting holes 920 and the exhaust end head 96 at different positions, which can trigger the pneumatic switching mechanisms 6 corresponding to friction wheels 76 of different materials to operate, realize the type switching of friction wheels 76, and have good use effect.

[0063] In one embodiment of the present invention, Figure 8As shown, it also includes multiple groups of tension adjustment mechanisms 10, which are respectively arranged on the inner wall of the U-shaped test groove 21 and correspond to the position of the friction wheel 76; the tension adjustment mechanism 10 includes a detection frame 101, a first hydraulic adjustment frame 102, a second hydraulic adjustment frame 103, a first adjustment roller 104, a second adjustment roller 105 and a tension sensor 106, wherein the detection frame 101 is fixedly connected to the inner wall of the U-shaped test groove 21, the first hydraulic adjustment frame 102 and the second hydraulic adjustment frame 103 are respectively fixedly connected to the surface of the detection frame 101, the first adjustment roller 104 and the second adjustment roller 105 are respectively fixedly connected to the surface of the first hydraulic adjustment frame 102 and the surface of the second hydraulic adjustment frame 103, and are located on the outside of the friction wheel 76, the tension sensor 106 is respectively fixedly connected to the surface of the first adjustment roller 104 and the surface of the second adjustment roller 105, and is in contact with the surface of the test ribbon 4; the controller 8 is connected to the multiple groups of tension sensors 106 through the control bus to achieve accurate command transmission and comprehensive monitoring of the equipment operation status.

[0064] Specifically, the structure and connection relationship of the tension adjustment mechanism 10 are further explained. The tension sensor 106 is in contact with the surface of the test webbing 4 to detect the tension of the surface of the test webbing 4 in real time. After the tension sensor 106 sends the data information to the controller 8, the controller 8 compares the detected data with the stored set data, and calculates the difference therebetween, and controls the operation of the first hydraulic adjustment frame 102 and the second hydraulic adjustment frame 103 according to the difference. The operation of the first hydraulic adjustment frame 102 and the second hydraulic adjustment frame 103 respectively drives the first adjustment roller 104 and the second adjustment roller 105 to move, thereby changing the tension of the test webbing 4 by fine-tuning the position.

[0065] A method for using a webbing wear test device, applied to a webbing wear test device, comprises the following steps:

[0066] S1: Connect the standardized power plug 81 to the external power supply;

[0067] S2: Install the test webbing 4. First, wrap the test webbing 4 around the upper limit guide roller 32 and the lower limit guide roller 33, respectively. Then, connect and secure the two sets of buckles 36 to the locking devices 35 on the upper traction slide 31 and the locking devices 35 on the lower traction slide 34, respectively.

[0068] S3: The device is started by the controller 8, and the device runs to perform a wear resistance test on the test webbing 4;

[0069] S4: After the wear test is completed, remove the test ribbon 4, then turn off the device and unplug the standardized power plug 81.

[0070] In summary, the embodiment of the present invention provides a wear resistance testing device and method for a webbing. This device can synchronously drive multiple sets of friction wheels 76 to perform wear resistance testing on the surface of the test webbing 4 at different friction rates without the need for shutdown adjustments throughout the process, which greatly shortens the test cycle, significantly improves the detection efficiency and accuracy, ensures the comprehensiveness and reliability of the test results, and at the same time effectively improves the service life of the equipment by reducing the number of equipment starts and stops, with excellent use effect.

[0071] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0072] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0073] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are exemplary and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and deform the above embodiments within the scope of the present invention.

Claims

1. A wear resistance testing device for a webbing, characterized in that: It comprises a fixed stand (1), a test frame (2), a reciprocating traction mechanism (3), a test webbing (4), a synchronous drive mechanism (5), multiple sets of pneumatic switching mechanisms (6), multiple sets of test wheel assemblies (7) and a controller (8), wherein: The fixed stand (1) is horizontally arranged on the ground, the test frame (2) is fixedly connected to the surface of the fixed stand (1), a U-shaped test groove (21) is provided on the surface of the test frame (2), the reciprocating traction mechanism (3) is arranged on the inner wall of the U-shaped test groove (21), and the test ribbon (4) is arranged on the reciprocating traction mechanism (3); The synchronous drive mechanism (5) is arranged on the inner wall of the test frame (2) and is connected to the reciprocating traction mechanism (3); multiple groups of the pneumatic switching mechanisms (6) are respectively arranged on the inner wall of the test frame (2) and located on one side of the synchronous drive mechanism (5); multiple groups of the test wheel assemblies (7) are respectively arranged on the multiple groups of the pneumatic switching mechanisms (6); one end of the multiple groups of the test wheel assemblies (7) is respectively connected to the synchronous drive mechanism (5); the other ends of the multiple groups of the test wheel assemblies (7) respectively pass through the rectangular through slots (22) into the interior of the U-shaped test slot (21) and contact the surface of the test webbing (4); The controller (8) is fixedly connected to the surface of the test frame (2). The controller (8) uses a standardized power plug (81) to seamlessly connect to an external power supply. The controller (8) is connected to the synchronous drive mechanism (5) and multiple groups of pneumatic switching mechanisms (6) through a control bus, thereby achieving precise command transmission and comprehensive monitoring of the equipment operation status. The reciprocating traction mechanism (3) comprises an upper traction slide (31), an upper limit guide roller (32), a lower limit guide roller (33), a lower traction slide (34), a locking device (35) and a buckle (36), wherein: The upper traction slide (31), the upper limit guide roller (32), the lower limit guide roller (33) and the lower traction slide (34) are sequentially arranged on the inner wall of the U-shaped test groove (21) in a clockwise order. The locking device (35) is respectively arranged on the surface of the upper traction slide (31) and the surface of the lower traction slide (34). The buckle (36) is fixedly connected to the surfaces of both ends of the test ribbon (4). One end of the test ribbon (4) is clamped and fixed to the locking device (35) on the upper traction slide (31) through one group of the buckles (36). The other end of the test ribbon (4) is wound around the surface of the upper limit guide roller (32) and the surface of the lower limit guide roller (33), and is clamped and fixed to the locking device (35) on the lower traction slide (34) through another group of the buckles (36).

2. The wear resistance testing device for webbing according to claim 1, characterized in that: The synchronous drive mechanism (5) comprises a dual-axis motor (51), a first transmission rod (52), a second transmission rod (53), a first bevel gear (54), a second bevel gear (55), an upper reciprocating screw rod (56), a lower reciprocating screw rod (57), a third bevel gear (58), a fourth bevel gear (59), a fifth bevel gear (510), a sixth bevel gear (511) and a transmission sleeve (512), wherein: The dual-axis motor (51) is fixedly connected to the inner wall of the test frame (2); an encoder (50) is fixedly connected to the surface of the dual-axis motor (51); and the controller (8) is connected to the dual-axis motor (51) and the encoder (50) respectively via a control bus to achieve accurate command transmission and comprehensive monitoring of the equipment operation status; The first transmission rod (52) and the second transmission rod (53) are respectively rotatably connected to the inner wall of the test frame (2) and are located outside the dual-axis motor (51). The first bevel gear (54) and the second bevel gear (55) are respectively provided at positions corresponding to the positions of the output end surface of the dual-axis motor (51) and the surfaces of the first transmission rod (52) and the second transmission rod (53), and are meshed with each other. The upper reciprocating screw rod (56) and the lower reciprocating screw rod (57) are respectively rotatably connected to the inner wall of the test frame (2) and are located outside the dual-axis motor (51). On the outside of the second transmission rod (53), one end of the upper reciprocating screw rod (56) and one end of the lower reciprocating screw rod (57) correspond to the top end of the first transmission rod (52) and the bottom end of the first transmission rod (52), respectively. The third bevel gear (58) and the fourth bevel gear (59) are respectively provided at a position where the top end of the first transmission rod (52) corresponds to the surface position of one end of the upper reciprocating screw rod (56) and at a position where the bottom end of the first transmission rod (52) corresponds to the surface position of one end of the lower reciprocating screw rod (57), and are meshed with each other. The fifth bevel gear (510) is evenly fixedly connected to the outer surface of the second transmission rod (53); the sixth bevel gear (511) is evenly rotatably connected to the inner wall of the test frame (2) and is meshed with the fifth bevel gear (510); the transmission sleeve (512) is evenly rotatably connected to the inner wall of the test frame (2) and is fixedly connected to one end of the central axis of the sixth bevel gear (511); The fifth bevel gear (510) and the sixth bevel gear (511) are each provided with nine groups, and the nine groups of gears adopt three different tooth module ratio strategies to match the transmission requirements of low speed, medium speed and high speed respectively; The pneumatic switching mechanism (6) comprises a bidirectional screw (61), a rotating cylinder (62), a driving rod (63), a convex shaft (64), a spiral guide groove (65) and a single-acting cylinder (66), wherein: The bidirectional screw rod (61) is rotatably connected to the inner wall of the test frame (2), and the test wheel assembly (7) is arranged on the bidirectional screw rod (61); The rotating cylinder (62) is rotatably connected to the inner wall of the test frame (2) and is fixedly connected to one end of the bidirectional screw rod (61). The driving rod (63) is horizontally slidably connected to the inner wall of the rotating cylinder (62). One end of the driving rod (63) is located inside the rotating cylinder (62) and is fixedly connected to the convex shaft (64). The surface of the rotating cylinder (62) is provided with the spiral guide groove (65) at a position corresponding to the position of the convex shaft (64). One end of the convex shaft (64) is located in the spiral guide groove (65). The driving rod (63) is connected to the inner wall of the spiral guide groove (65) in a sliding manner. The other end of the driving rod (63) passes through the outside of the rotating drum (62) and is fixedly connected to the output end of the single-acting cylinder (66) fixedly connected to the inner wall of the test frame (2). The single-acting cylinder (66) is connected to the output end of the external gas source through a gas conduit. The gas conduit is provided with a solenoid valve. The controller (8) is connected to multiple groups of solenoid valves through a control bus to achieve accurate command transmission and comprehensive monitoring of the equipment operation status.

3. The wear resistance testing device for webbing according to claim 2, characterized in that: The test wheel assembly (7) comprises a first slide (71), a second slide (72), a transmission key rod (73), a conical friction transmission wheel (74), a conventional key cylinder (75), a friction wheel (76) and a wheel drive mechanism (77), wherein: The first slide (71) and the second slide (72) are respectively threadedly connected to the outer surface of the bidirectional screw (61) and slidably connected to the inner wall of the test frame (2); the transmission key rod (73) is rotatably connected to the inner wall of the first slide (71); the conical friction transmission wheel (74) is fixedly connected to the outer surface of one end of the transmission key rod (73); one end of the conical friction transmission wheel (74) is located inside the transmission sleeve (512) and contacts the inner wall of the transmission sleeve (512); the traditional key cylinder (75) is rotatably connected to the outer surface of one end of the second slide (72); the wheel driving mechanism (77) is arranged on the second slide (72), one end of the conventional key cylinder (75) is slidably connected to the outer surface of one end of the transmission key rod (73), the other end of the conventional key cylinder (75) passes through the interior of the second slide (72) and is connected to one end of the wheel drive mechanism (77), the friction wheel (76) is rotatably connected to the outer surface of the other end of the second slide (72), one end of the central axis of the friction wheel (76) passes through the interior of the second slide (72) and is connected to one end of the wheel drive mechanism (77), the friction wheel (76) passes through the rectangular through groove (22) into the interior of the U-shaped test groove (21) and contacts the surface of the test webbing (4); The pneumatic switching mechanism (6), the test wheel assembly (7) and the transmission sleeve (512) are equal in number, and the friction wheels (76) are provided in nine groups. The nine groups of friction wheels (76) are made of three different materials, and the three materials are respectively metal friction wheels (761), rubber friction wheels (762) and PVC friction wheels (763).

4. The wear resistance testing device for webbing according to claim 3, characterized in that: The wheel drive mechanism (77) includes a seventh bevel gear (771), an eighth bevel gear (772), a first gear (773) and a second gear (774), wherein: The seventh bevel gear (771) is rotatably connected to the inner wall of the second slide (72) and is fixedly connected to one end of the conventional key cylinder (75); the first gear (773) and the second gear (774) are rotatably connected to the inner wall of the second slide (72) and mesh with each other; the eighth bevel gear (772) is fixedly connected to the surface of the first gear (773) and meshes with the seventh bevel gear (771); the second gear (774) is fixedly connected to one end of the central axis of the friction wheel (76).

5. The wear resistance testing device for webbing according to claim 2, characterized in that: It also includes an air control mechanism (9), which includes a box body (91), an air inlet end (95), an exhaust end (96), a threaded screw (97), a vent seat (98) and a connecting groove (99), wherein: The box body (91) is fixedly connected to the inner wall of the test frame (2); a partition (92) is provided inside the box body (91), and the interior of the box body (91) is divided into an air intake chamber (93) and an adjustment chamber (94) with the partition (92) as a boundary; one end of the air intake terminal (95) is fixedly connected to a side surface of the box body (91) and is connected to the interior of the air intake chamber (93); the other end of the air intake terminal (95) passes through the outside of the test frame (2) and is connected to an external air supply main pipe; the exhaust terminal (96) is evenly fixedly connected to the other side surface of the box body (91) and is connected to the interior of the adjustment chamber (94); multiple groups of the exhaust terminal (96) are respectively connected to multiple groups of the single-acting cylinders (66) through air guide hoses (961); The surface of the partition plate (92) is uniformly provided with communication holes (920), the number of the communication holes (920) is equal to that of the exhaust end head (96), and the positions thereof correspond to each other, and the intake main cavity (93) is connected to the interior of the regulating cavity (94) through the communication holes (920); The threaded screw (97) is rotatably connected to the inner wall of the adjusting chamber (94); the vent seat (98) is evenly threadedly connected to the outer surface of the threaded screw (97) and is slidably connected to the inner wall of the adjusting chamber (94); the outer shape of the vent seat (98) is adapted to the inner size of the adjusting chamber (94); the connecting groove (99) is opened on the surface of the vent seat (98); one end of the threaded screw (97) passes through the bottom of the box body (91) and is fixedly connected to the third gear (910); the bottom of the first transmission rod (52) is fixedly connected to the fourth gear (911) and is connected to the third gear (910) through a toothed synchronous belt (912); The vent seats (98) are provided in three groups.

6. The wear resistance testing device for webbing according to claim 3, characterized in that: It also includes multiple sets of tension adjustment mechanisms (10), which are respectively arranged on the inner wall of the U-shaped test slot (21) and correspond to the positions of the friction wheels (76); The tension adjustment mechanism (10) comprises a detection frame (101), a first hydraulic adjustment frame (102), a second hydraulic adjustment frame (103), a first adjustment roller (104), a second adjustment roller (105) and a tension sensor (106), wherein: The detection frame (101) is fixedly connected to the inner wall of the U-shaped test groove (21); the first hydraulic adjustment frame (102) and the second hydraulic adjustment frame (103) are respectively fixedly connected to the surface of the detection frame (101); the first adjustment roller (104) and the second adjustment roller (105) are respectively fixedly connected to the surface of the first hydraulic adjustment frame (102) and the surface of the second hydraulic adjustment frame (103), and are located outside the friction wheel (76); the tension sensor (106) is respectively fixedly connected to the surface of the first adjustment roller (104) and the surface of the second adjustment roller (105), and is in contact with the surface of the test ribbon (4); The controller (8) is connected to a plurality of groups of tension sensors (106) via a control bus, thereby achieving accurate instruction transmission and comprehensive monitoring of the equipment operation status.

7. A method for using a wear-resistant testing device for a webbing, characterized in that: A wear resistance testing device for a webbing as claimed in any one of claims 1 to 7 comprises the following steps: S1: Connecting the standardized power plug (81) to an external power source; S2: Install the test webbing (4), firstly wind the test webbing (4) around the surface of the upper limit guide roller (32) and the surface of the lower limit guide roller (33), and then respectively connect and fix the two sets of buckles (36) to the locking device (35) on the upper traction slide (31) and the locking device (35) on the lower traction slide (34); S3: starting the device through the controller (8), and the device is running to perform a wear resistance test on the test webbing (4); S4: After the wear resistance test is completed, the test ribbon (4) is removed, the device is turned off, and the standardized power plug (81) is unplugged.

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