Anti-falling type steel wire rope mechanical property detection equipment

Abstract

The invention discloses an anti-falling type steel wire rope mechanical property detection device, and relates to the field of steel wire rope detection, the anti-falling type steel wire rope mechanical property detection device comprises a machine body and a detection rope, the detection rope is arranged above the machine body, a mounting seat is arranged above the machine body, a supporting seat is fixed below the mounting seat, and the left end and the right end of the detection rope are located on the outer side of the mounting seat respectively; the end part of the detection rope is wound on the edge part of the mounting seat, locking blocks are arranged on the upper side and the lower side of the mounting seat, and the locking blocks are symmetrically arranged front and back relative to the center of the mounting seat to clamp and fix the detection rope. According to the anti-falling type steel wire rope mechanical property detection equipment, the supporting seat is matched with the mounting seat to support the end part of the detection rope, meanwhile, the end part of the detection rope can be wound on the outer side of the mounting seat, and two fixing points can be synchronously provided for the detection rope through the locking blocks which are symmetrically arranged up and down, so that the tensile and anti-falling effects of the steel wire rope are improved; and the detection rope is prevented from slipping during detection.

Description

Technical Field

[0001] The invention relates to the technical field of steel wire rope detection, in particular to an anti-slip type steel wire rope mechanical property detection device. Background Art

[0002] As a material that can withstand large forces, wire rope can be used in many fields, as well as in the construction of related special equipment and construction projects. After the wire rope is processed, in order to ensure that the performance of the wire rope meets the needs of subsequent safe use, the mechanical properties of the wire rope need to be tested. Currently, common testing equipment uses tensioning to test the load that the wire rope can withstand.

[0003] Prior art 1 (publication number CN221260658U, Chinese patent published on July 2, 2024) A wire rope strength detection device with an anti-loosening structure, including a workbench, two movable seats are symmetrically slidably provided on the top of the workbench, and a driving assembly for controlling the two movable seats to approach or move away from each other is provided on the workbench, and a clamping assembly is provided inside the two movable seats; the clamping assembly includes a box body hingedly matched with the movable seat, and two clamping members are symmetrically slidably provided inside the box body. By setting a movable seat, a driving assembly, a clamping assembly and a linkage assembly, the purpose of placing the wire rope between two adjacent clamping parts or taking it out from two adjacent clamping parts is achieved, thereby effectively ensuring the detection efficiency of the equipment. At the same time, when stretching or relaxing the wire rope, the two adjacent clamping parts can maintain a tight clamping state, simulating the real scene of the wire rope in daily use, and effectively ensuring the detection accuracy of the wire rope; Prior art 2 (publication number CN118111806A, Chinese patent published on May 31, 2024) A wire rope strength detection device, a fixing part is installed on the mounting plate, and when in use, one end of the wire rope is passed through the cavity The wire rope is connected by a connection, and then the inner wall of the cavity is used to fix one end of the wire rope through the connection between the sleeve and the elastic sheet. The other end of the wire rope is fixed to the wheel through the fixing part of the pulling member. When the wheel rotates, the wire rope is pulled for testing. When it is pulled to the maximum limit, the rotation of the wheel is limited by the limiting member, so that the wire rope is in a state of maximum tension and is maintained, thereby completing the strength test of the wire rope. When in use, the wire rope is fixed by the rotation of the wheel. During the rotation of the wheel, even if the fixing part slips, the wire rope can be fixed by the winding of the wire rope itself, thereby reducing the possibility of separation of the wire rope from the device during the detection process and improving the practicability of the device.

[0004] When current testing equipment tests wire ropes, the wire ropes are tensioned after being clamped at their ends. As the subsequent tensioning force increases, the clamping points are prone to slippage, affecting the accuracy of the test. In addition, both ends of the wire rope need to be fixed in turn, reducing the efficiency of the installation and subsequent removal of the wire rope. At the same time, there is a lack of effective protection during testing, and accidental disconnection of the wire rope can easily cause damage to the outside world. Summary of the invention

[0005] The object of the present invention is to provide an anti-slip type wire rope mechanical properties testing device to solve the problem proposed in the above-mentioned background technology that when the subsequent tensioning force increases, the clamping position is prone to slippage, affecting the detection accuracy, and the two ends of the wire rope need to be fixed in turn, which reduces the installation and subsequent removal efficiency of the wire rope, and lacks effective protection during detection.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an anti-slip type steel wire rope mechanical property testing device, comprising a body and a testing rope, wherein the testing rope is arranged above the body, a mounting seat is arranged above the body, and a supporting seat is fixed below the mounting seat, the left and right ends of the testing rope are respectively located on the outside of the mounting seat, and the end of the testing rope is wound around the edge of the mounting seat, the upper and lower sides of the mounting seat are both provided with locking blocks, and the locking blocks are symmetrically arranged front and back about the center of the mounting seat to provide clamping and fixing for the testing rope, a driving plate is arranged inside the mounting seat, and the driving plate and the mounting seat are fixedly connected, and a front and back sliding structure is formed between the driving plate and the mounting seat, and a first control rod runs through the inside of the driving plate, The first control rod is a bidirectional threaded rod, and a threaded connection is formed between the first control rod and the driving plate. A transmission shaft is fixed to the outer side of the first control rod, and an operating shaft is connected to the outer end of the transmission shaft. The transmission shaft is controlled to rotate by rotating the operating shaft, and the outer end of the operating shaft passes through the outer surface of the mounting seat. A synchronous driving mechanism is connected to the outer side of the transmission shaft to drive the first control rods on the left and right sides to maintain synchronous rotation. A protective plate is arranged inside the body, and the protective plate is designed in a circular arc shape, and the protective plate is symmetrically arranged front and back about the center line of the body. An adjustment mechanism is arranged on the inner side of the protective plate to control the position of the protective plate. A lateral pulling mechanism is arranged below the support seat to control the movement of the support seat.

[0007] To further optimize the technical solution, the synchronous drive mechanism includes a first transmission belt, a movable shaft, a drive shaft and a telescopic transmission mechanism; A first transmission belt, arranged on the outer side of the transmission shaft to control the rotation of the transmission shaft; A movable shaft is rotatably mounted inside the support seat, and the movable shaft is connected to the transmission shaft through a first transmission belt; The driving shaft is rotatably mounted inside the supporting seat, and the driving shaft and the movable shaft are arranged perpendicular to each other, and the driving shaft and the movable shaft are meshed with each other through the bevel gear; The telescopic transmission mechanism is connected to the driving shaft to control the synchronous rotation of the driving shafts in the left and right support seats.

[0008] To further optimize the technical solution, the telescopic transmission mechanism includes a first connecting shaft, a second connecting shaft and a guide block; A first connecting shaft, fixed to the end of the right driving shaft; A second connecting shaft is fixed to the end of the left driving shaft, and the second connecting shaft and the first connecting shaft form a nested connection; The guide block is fixed inside the first connecting shaft, and a horizontal sliding structure is formed between the guide block and the second connecting shaft.

[0009] To further optimize the technical solution, the lateral pulling mechanism includes a fixed block, a second control rod and a first motor; A fixed block is fixed below the support seat, and a horizontal sliding structure is formed between the fixed block and the machine body; A second control rod passes through the fixed block and forms a threaded connection between the fixed blocks, and the second control rod and the body form a rotational connection; The first motor is connected to the second control rod to control the rotation of the second control rod.

[0010] To further optimize the technical solution, a sliding connection is formed between the protective plate and the body, and a rack structure is provided on the inner side of the protective plate.

[0011] To further optimize the technical solution, the adjustment mechanism includes a first gear, a first mounting shaft, a second motor and a reverse transmission mechanism; A first gear, arranged on the inner side of the protection plate and meshingly connected with the protection plate; A first mounting shaft is fixed to the middle of the first gear, and a rotation connection is formed between the first mounting shaft and the body; A second motor is connected to a set of first mounting shafts to control the rotation of the first mounting shafts; The reverse transmission mechanism is arranged on the outer side of the first gear to control the reverse rotation of the first gears at the front and rear sides.

[0012] Further optimizing the technical solution, the reverse transmission mechanism includes a second gear, a second mounting shaft and a second transmission belt; A second gear is arranged inside the first gear and meshes with the first gear; A second mounting shaft is fixed to the middle of the second gear, and a rotation connection is formed between the second mounting shaft and the body; The second transmission belt is arranged on the outer side of the first installation shaft located at the rear side of the machine body, and the first installation shaft is connected to the second installation shaft located at the front side of the machine body through the second transmission belt.

[0013] To further optimize the technical solution, an auxiliary limiting mechanism is provided on the outer side of the second gear, and the auxiliary limiting mechanism is located below the operating shaft to provide limiting for the operating shaft.

[0014] To further optimize the technical solution, the auxiliary limiting mechanism includes a limiting plate and a slider; A limit plate is arranged on the outer side of the second gear, and a sliding connection is formed between the limit plate and the body; The slider is fixed on the outer side of the support seat, and the slider and the limit plate form an up-and-down sliding connection.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The support base cooperates with the mounting base to provide support for the end of the detection rope. At the same time, the end of the detection rope can be wrapped around the outside of the mounting base. The locking blocks symmetrically arranged up and down can simultaneously provide two fixing points for the detection rope, thereby improving the tensile and anti-slip effect of the wire rope and preventing the detection rope from slipping during detection. The cooperation between the driving shaft and the telescopic transmission mechanism can make the locking blocks outside the mounting seats on the left and right sides move synchronously, so that the two ends of the detection rope can be locked at the same time, and the subsequent unlocking can also be done synchronously, thereby improving the convenience of installation and subsequent disassembly of the detection rope; The protective plate can provide protection for the outside of the detection rope, and the protective plate can be extended or retracted from the body by movement, without affecting the installation and removal of the detection rope, thereby improving the safety of the device; The connection between the first mounting shaft and the second mounting shaft can enable the front and rear sets of the first mounting shaft to maintain opposite rotations, thereby being able to synchronously drive the two sets of protection plates to be synchronously extended and retracted; The limit plate can be connected to the operating shaft by moving it, so as to limit the rotation of the operating shaft and maintain the stability of the position of the locking block. When the protective plate is rotated out for protection, the limit plate can automatically move accordingly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the top view structure of the present invention; Figure 3 It is a side view structural schematic diagram of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the support base of the present invention; Figure 5 It is a schematic diagram of the side section structure of the support seat of the present invention; Figure 6 It is a schematic diagram of the main cross-sectional structure of the machine body of the present invention; Figure 7 This is a schematic diagram of the main cross-sectional structure of the first connecting shaft of the present invention; Figure 8 It is a schematic diagram of the side section structure of the protective plate of the present invention; Fig. 9 This is a schematic diagram of the top view of the first gear of the present invention; Fig.10 It is a schematic diagram of the side section structure of the limiting plate of the present invention.

[0017] In the figure: 1. body; 2. mounting seat; 3. detection rope; 4. supporting seat; 5. locking block; 6. driving plate; 7. first control rod; 8. transmission shaft; 9. operating shaft; 10. first transmission belt; 11. movable shaft; 12. driving shaft; 13. first connecting shaft; 14. second connecting shaft; 15. guide block; 16. fixing block; 17. second control rod; 18. first motor; 19. protective plate; 20. first gear; 21. first mounting shaft; 22. second gear; 23. second mounting shaft; 24. limiting plate; 25. slider; 26. second motor; 27. second transmission belt. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] See also Figure 1-Figure 10 , the present invention provides the following technical solutions: an anti-slip type wire rope mechanical property testing device, comprising a body 1 and a detection rope 3, wherein the detection rope 3 is arranged above the body 1; Embodiment 1: The present invention provides the following technical solution, which discloses that a mounting seat 2 is arranged above a machine body 1, and a supporting seat 4 is fixed below the mounting seat 2, the left and right ends of a detection rope 3 are respectively located on the outside of the mounting seat 2, and the end of the detection rope 3 is wound around the edge of the mounting seat 2, and locking blocks 5 are arranged on both the upper and lower sides of the mounting seat 2, and the locking blocks 5 are arranged symmetrically front and back about the center of the mounting seat 2 to provide clamping and fixing for the detection rope 3, a driving plate 6 is arranged inside the mounting seat 2, and the driving plate 6 and the mounting seat 2 are fixedly connected, and a front-to-back sliding structure is formed between the driving plate 6 and the mounting seat 2, a first control rod 7 is passed through the inside of the driving plate 6, and the first control rod 7 is a bidirectional threaded rod, and the first control rod 7 and the driving plate 6 are connected to each other. A threaded connection is formed between the moving plates 6, a transmission shaft 8 is fixed to the outside of the first control rod 7, and an operating shaft 9 is connected to the outer end of the transmission shaft 8. The transmission shaft 8 is controlled to rotate by the rotation of the operating shaft 9, and the outer end of the operating shaft 9 passes through the outer surface of the mounting seat 2. A synchronous driving mechanism is connected to the outside of the transmission shaft 8 to drive the first control rods 7 on the left and right sides to keep rotating synchronously. A protective plate 19 is provided inside the body 1, and the protective plate 19 is designed in an arc-shaped structure, and the protective plate 19 is symmetrically arranged front and back about the center line of the body 1. An adjustment mechanism is provided on the inner side of the protective plate 19 to control the position of the protective plate 19. A lateral pulling mechanism is provided below the support seat 4 to control the movement of the support seat 4; When in use, the two ends of the detection rope 3 are wound around the outside of the mounting seat 2 so that the locking block 5 can clamp it. Then, by controlling the rotation of the first control rod 7, the locking block 5 is driven to move through the driving plate 6 to clamp and lock the detection rope 3. At the same time, the locking blocks 5 on the left and right sides are synchronously rotated through the synchronous driving mechanism to achieve synchronous fixation of the detection rope 3. After the detection rope 3 is fixed, the protective plate 19 can be controlled to move to protect the detection rope 3. Then, the support seat 4 can be controlled to move through the lateral pulling mechanism to perform tension detection on the detection rope 3.

[0020] Embodiment 2: On the basis of embodiment 1, a synchronous drive mechanism is disclosed, including a first transmission belt 10, a movable shaft 11, a drive shaft 12 and a telescopic transmission mechanism. The first transmission belt 10 is arranged on the outer side of the transmission shaft 8 to control the rotation of the transmission shaft 8. The movable shaft 11 is rotatably installed inside the support seat 4, and the movable shaft 11 is connected to the transmission shaft 8 through the first transmission belt 10. The drive shaft 12 is rotatably installed inside the support seat 4, and the drive shaft 12 and the movable shaft 11 are arranged perpendicular to each other, and the drive shaft 12 is meshed with the movable shaft 11 through a bevel gear. The telescopic transmission mechanism is connected to the drive shaft 12 to control the synchronous rotation of the drive shaft 12 in the left and right support seats 4. The telescopic transmission mechanism includes a first connecting shaft 13, a second connecting shaft 14 and a guide block 15. The first connecting shaft 13, fixed at the end of the right driving shaft 12, the second connecting shaft 14, fixed at the end of the left driving shaft 12, and the second connecting shaft 14 and the first connecting shaft 13 form a nested connection, the guide block 15, fixed inside the first connecting shaft 13, and a horizontal sliding structure is formed between the guide block 15 and the second connecting shaft 14, the lateral pulling mechanism includes a fixed block 16, a second control rod 17 and a first motor 18, the fixed block 16 is fixed below the support seat 4, and a horizontal sliding structure is formed between the fixed block 16 and the body 1, the second control rod 17 passes through the fixed block 16 and the fixed block 16 is threadedly connected, and the second control rod 17 and the body 1 are rotatably connected, the first motor 18, and the second control rod 17 are connected to control the rotation of the second control rod 17; When controlling the first control rod 7 to rotate, any group of operating shafts 9 can be screwed to drive the first control rod 7 to rotate through the transmission shaft 8. At the same time, the transmission shaft 8 will drive the movable shaft 11 to rotate through the first transmission belt 10. The movable shaft 11 is engaged with the drive shaft 12 through the bevel gear to drive the drive shaft 12 to rotate. The drive shaft 12 drives another group of drive shafts 12 to rotate through the connection between the first connecting shaft 13 and the second connecting shaft 14, so that the locking block 5 can move synchronously. During the subsequent tensioning detection, the second control rod 17 is driven to rotate by the first motor 18. The second control rod 17 drives the support seat 4 to move through the fixed block 16. At the same time, the first connecting shaft 13 slides in the second connecting shaft 14.

[0021] Embodiment 3: On the basis of embodiment 1, a sliding connection is disclosed between the protective plate 19 and the body 1, and a rack structure is provided on the inner side of the protective plate 19, the adjustment mechanism includes a first gear 20, a first mounting shaft 21, a second motor 26 and a reverse transmission mechanism, the first gear 20 is arranged on the inner side of the protective plate 19 and forms a meshing connection between the protective plate 19, the first mounting shaft 21 is fixed to the middle of the first gear 20, and the first mounting shaft 21 and the body 1 form a rotational connection, the second motor 26 is connected to a group of first mounting shafts 21 to control the rotation of the first mounting shaft 21, the reverse transmission mechanism is arranged on the outer side of the first gear 20 to control the reverse rotation of the first gear 20 on the front and rear sides, the reverse transmission mechanism includes a second gear 22, a second mounting shaft 23 and a second transmission belt 27, the second gear 22 is provided A meshing connection is formed between the inner side of the first gear 20 and the first gear 20, the second mounting shaft 23 is fixed to the middle part of the second gear 22, and a rotation connection is formed between the second mounting shaft 23 and the body 1, the second transmission belt 27 is arranged on the outer side of the first mounting shaft 21 located on the rear side of the body 1, and the first mounting shaft 21 is connected to the second mounting shaft 23 located on the front side of the body 1 through the second transmission belt 27, an auxiliary limiting mechanism is arranged on the outer side of the second gear 22, the auxiliary limiting mechanism is located below the operating shaft 9 to provide limiting for the operating shaft 9, the auxiliary limiting mechanism includes a limiting plate 24 and a slider 25, the limiting plate 24 is arranged on the outer side of the second gear 22, and a sliding connection is formed between the limiting plate 24 and the body 1, the slider 25 is fixed on the outer side of the support seat 4, and an up and down sliding connection is formed between the slider 25 and the limiting plate 24; After the detection rope 3 is installed, the second motor 26 can be used to control the first installation shaft 21 connected thereto to rotate. The first installation shaft 21 drives another group of second installation shafts 23 to rotate through the second transmission belt 27. The meshing between the first gear 20 and the second gear 22 makes the first gears 20 on the front and rear sides rotate in opposite directions. The first gear 20 drives the protective plate 19 to move through the meshing with the protective plate 19, so that the protective plate 19 forms protection on the outside of the detection rope 3. At the same time, the first gear 20 drives the second gear 22 to rotate through the meshing with the second gear 22, so that the second gear 22 drives the limiting plate 24 to move through the meshing with the limiting plate 24. The limiting plate 24 is connected to the operating shaft 9 to limit the rotation of the operating shaft 9 to keep it stable.

[0022] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0023] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An anti-slip steel wire rope mechanical property testing device, comprising a body (1) and a testing rope (3), wherein the testing rope (3) is arranged above the body (1); Features: A mounting seat (2) is arranged above the body (1), and a support seat (4) is fixed below the mounting seat (2); the left and right ends of the detection rope (3) are respectively located outside the mounting seat (2), and the end of the detection rope (3) is wound around the edge of the mounting seat (2); locking blocks (5) are arranged on both upper and lower sides of the mounting seat (2), and the locking blocks (5) are arranged symmetrically front and back about the center of the mounting seat (2) to provide clamping and fixing for the detection rope (3); a driving plate (6) is arranged inside the mounting seat (2), and the driving plate (6) and the mounting seat (2) are fixedly connected, and a front-to-back sliding structure is formed between the driving plate (6) and the mounting seat (2); a first control rod (7) runs through the inside of the driving plate (6), and the first control rod (7) is a bidirectional threaded rod, and the first control rod (7) and the driving plate (6) are connected to each other. A threaded connection is formed, a transmission shaft (8) is fixed on the outer side of the first control rod (7), and the outer end of the transmission shaft (8) is connected to an operating shaft (9), and the transmission shaft (8) is controlled to rotate by the rotation control of the operating shaft (9), and the outer end of the operating shaft (9) penetrates the outer surface of the mounting seat (2), and the outer side of the transmission shaft (8) is connected to a synchronous driving mechanism to drive the first control rods (7) on the left and right sides to maintain synchronous rotation, and a protective plate (19) is arranged inside the body (1), and the protective plate (19) is designed in a circular arc structure, and the protective plate (19) is symmetrically arranged with respect to the center line of the body (1), and an adjustment mechanism is arranged on the inner side of the protective plate (19) to control the position of the protective plate (19), and a lateral pulling mechanism is arranged below the support seat (4) to control the movement of the support seat (4).

2. The anti-dropping type steel wire rope mechanical property testing equipment according to claim 1 is characterized in that: The synchronous drive mechanism comprises a first transmission belt (10), a movable shaft (11), a drive shaft (12) and a telescopic transmission mechanism; A first transmission belt (10) is arranged on the outside of the transmission shaft (8) to control the rotation of the transmission shaft (8); A movable shaft (11) is rotatably mounted inside the support seat (4), and the movable shaft (11) is connected to the transmission shaft (8) via a first transmission belt (10); A drive shaft (12) is rotatably mounted inside the support seat (4), and the drive shaft (12) and the movable shaft (11) are arranged perpendicular to each other, and the drive shaft (12) and the movable shaft (11) are meshed with each other through a bevel gear; The telescopic transmission mechanism is connected to the drive shaft (12) to control the synchronous rotation of the drive shaft (12) in the left and right support seats (4).

3. The anti-slip type steel wire rope mechanical property testing equipment according to claim 2 is characterized in that: The telescopic transmission mechanism comprises a first connecting shaft (13), a second connecting shaft (14) and a guide block (15); A first connecting shaft (13) fixed to an end of the right driving shaft (12); A second connecting shaft (14) is fixed to the end of the left driving shaft (12), and the second connecting shaft (14) and the first connecting shaft (13) form a nested connection; The guide block (15) is fixed inside the first connecting shaft (13), and a horizontal sliding structure is formed between the guide block (15) and the second connecting shaft (14).

4. The anti-slip type steel wire rope mechanical property testing device according to claim 1 is characterized in that: The lateral pulling mechanism comprises a fixed block (16), a second control rod (17) and a first motor (18); A fixed block (16) is fixed below the support seat (4), and a horizontal sliding structure is formed between the fixed block (16) and the machine body (1); A second control rod (17) passes through the fixed block (16) to form a threaded connection between the fixed block (16), and a rotational connection is formed between the second control rod (17) and the machine body (1); The first motor (18) is connected to the second control rod (17) to control the rotation of the second control rod (17).

5. The anti-dropping type steel wire rope mechanical property testing equipment according to claim 1 is characterized in that: The protective plate (19) and the machine body (1) are slidably connected, and a rack structure is provided on the inner side of the protective plate (19).

6. The anti-dropping type steel wire rope mechanical property testing equipment according to claim 5 is characterized in that: The adjustment mechanism comprises a first gear (20), a first mounting shaft (21), a second motor (26) and a reverse transmission mechanism; A first gear (20) is arranged on the inner side of the protective plate (19) and is meshedly connected with the protective plate (19); A first mounting shaft (21) is fixed to the middle portion of the first gear (20), and a rotational connection is formed between the first mounting shaft (21) and the machine body (1); A second motor (26) connected to a set of first mounting shafts (21) to control the rotation of the first mounting shafts (21); The reverse transmission mechanism is arranged outside the first gear (20) to control the reverse rotation of the first gears (20) at the front and rear sides.

7. The anti-dropping type steel wire rope mechanical property testing equipment according to claim 6 is characterized in that: The reverse transmission mechanism comprises a second gear (22), a second mounting shaft (23) and a second transmission belt (27); A second gear (22) is arranged inside the first gear (20) and meshes with the first gear (20); A second mounting shaft (23) is fixed to the middle portion of the second gear (22), and a rotational connection is formed between the second mounting shaft (23) and the machine body (1); The second transmission belt (27) is arranged on the outside of the first installation shaft (21) located on the rear side of the machine body (1), and the first installation shaft (21) is connected to the second installation shaft (23) located on the front side of the machine body (1) via the second transmission belt (27).

8. The anti-dropping type steel wire rope mechanical property testing device according to claim 7 is characterized in that: An auxiliary limiting mechanism is provided on the outer side of the second gear (22), and the auxiliary limiting mechanism is located below the operating shaft (9) to provide limiting for the operating shaft (9).

9. The anti-dropping type steel wire rope mechanical property testing device according to claim 8, characterized in that: The auxiliary limiting mechanism comprises a limiting plate (24) and a sliding block (25); A limit plate (24) is arranged on the outside of the second gear (22), and a sliding connection is formed between the limit plate (24) and the body (1); The slider (25) is fixed on the outer side of the support seat (4), and the slider (25) and the limit plate (24) are connected to each other in an up-and-down sliding manner.

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