A tensile test device and test method for a tail truck in a hydraulic winch system

Abstract

The present invention discloses a tensile strength test device and a test method for a tail truck in a hydraulic winch system, specifically relating to the technical field of tensile strength testing. The tensile strength test device for the tail truck in the hydraulic winch system includes a test bench, and an operating console is installed on one side of the upper surface of the test bench. By providing two simulation components, the present invention can complete multiple simulation tests for various positions on the wire take-up frame, optimizing the tensile strength test effect. At the same time, with the design of the walking component, the two simulation components are synchronously controlled to move at a predetermined travel distance to complete multi-point coverage testing. Moreover, with the unique design of the coordinated movement of the two simulation components and the walking component, the two simulation components can reciprocally switch to contact the wire take-up frame to complete the tensile strength test. In this way, multiple simulation tests can be carried out for the test points on the wire take-up frame, quickly finding the structural weaknesses of the wire take-up frame, facilitating subsequent structural upgrades, ensuring the stable operation of the winch system, and reducing the operation risk.

Description

Technical Field

[0001] The present invention relates to the technical field of tensile testing, and particularly to a tail truck tensile testing device and testing method for a hydraulic winch system. Background Art

[0002] The tail truck of a winch usually needs to be subjected to a tensile test. As a key component for bearing and transmitting tension, if the tensile strength is insufficient, faults such as fracture may occur during operation, leading to safety accidents and endangering the safety of personnel and equipment. Through the tensile test, it can be verified whether the tail truck can withstand the specified maximum tension, ensuring reliable operation under normal and extreme working conditions and meeting the construction requirements. For example, when towing heavy objects with a large tonnage or operating in complex terrains, the tail truck needs to have sufficient tensile capacity to ensure that the winch can successfully complete the task;

[0003] At the same time, due to different construction environments, steel ropes with different thicknesses will be configured for hoisting operations, and the wire reel directly carried on the tail truck needs to be in direct contact with the steel rope. Therefore, it is necessary to conduct a tensile test on the wire reel, and during the tensile test, it is necessary to cooperate with a tensile test device for auxiliary testing.

[0004] Referring to a tensile testing device for a soda water pipe disclosed in a patent application with a publication number of CN209802862U, this testing device pre-adjusts the distance between the movable block and the fixed block, and pulls the two movable joints to the positions of the fixed joints at both ends of the pipe fitting respectively. Then, by starting the pedal, the driving cylinder drives the movable block to move away from the fixed block and tighten the movable joints at both ends of the pipe fitting to conduct a tensile test. At this time, if the value shown on the pressure gauge can reach the qualified standard value, it means that the finished product of the soda water pipe is qualified.

[0005] Currently, the tensile test of the tail truck is mostly completed by directly applying an external force. For example, the above-mentioned testing device also uses the method of applying an external force to complete the testing work. However, limited by the operating environment of the tail truck, since tensile tests need to be conducted at various positions on the wire reel of the tail truck, the current tensile testing device cannot fully test all positions of the wire reel. At the same time, due to the different thicknesses of the steel ropes configured on the tail truck, the contact area between the steel rope and the wire reel changes, which will interfere with the tensile test of the tail truck. The current tensile testing device cannot perform multi-mode simulation tests according to the actual use state of the tail truck, which is extremely likely to affect the accuracy of the tensile test, resulting in data deviation, unable to quickly find the structural weaknesses of the tail truck, being unfavorable for subsequent improvement, and reducing the safety of subsequent operation. Summary of the Invention

[0006] The purpose of the present invention is to provide a tail truck tensile testing device and testing method for a hydraulic winch system to solve the above technical problems.

[0007] To solve the above technical problems, the present invention is implemented through the following technical solutions.

[0008] The present invention is a tail car tensile test device for a hydraulic capstan system, comprising a test bench and:

[0009] A positioning fixture is arranged on one side of the upper surface of the test bench, and a tail car body is installed on the positioning fixture, and the tail car body is composed of a frame, a take-up frame and a drive unit;

[0010] A pulling piece, arranged on the other side of the upper surface of the test bench for tensile testing;

[0011] A guide ring is slidably mounted on the wire take-up frame, a guide rail is installed on one side of the guide ring, and a walking part for controlling the movement of the guide ring is installed on one side of the guide rail, a test seat is slidably engaged on the guide rail, a test arm connected with the pulling part is slidably mounted on the test seat, and two sliding arm parts are symmetrically slidably penetrated at the front end of the test seat, two simulation parts of different sizes are respectively arranged at the tail ends of the two sliding arm parts, a switching part is installed on the test arm, and the walking part can complete the switching control of the switching part, and the two sliding arm parts are reciprocated by controlling the switching part to complete the power connection with the test arm to control the two simulation parts to complete the switching test operation.

[0012] Furthermore, the pulling member comprises:

[0013] A slide seat is arranged on the upper surface of the test bench, an electric slide table is slidably engaged on the slide seat, and a hydraulic cylinder connected to the electric slide table is arranged inside the slide seat;

[0014] Two linear rails are symmetrically arranged on both sides of the slide, and both linear rails are slidably connected to the electric slide through guide rail sliders;

[0015] The pulling seat is arranged at the output end of the electric slide, and a tension sensor is installed on the pulling seat.

[0016] Further, the guide ring comprises:

[0017] The two half rings are connected in rotation by a hinge, and a lug is installed at one end of the two half rings;

[0018] A plurality of adjusting screws are distributed in a circular array on the guide ring. Each adjusting screw is threadedly screwed through a half ring of the guide ring. A roller seat is rotatably installed at the bottom of the adjusting screw. A moving wheel in contact with the take-up frame is rotatably installed in the roller seat.

[0019] Furthermore, the walking member comprises:

[0020] A connecting arm is arranged on one side of the guide track, and a telescopic rod is installed at the tail of the connecting arm;

[0021] A travel seat is arranged at the bottom of the telescopic rod, a travel wheel in contact with the take-up frame is rotatably mounted on the travel seat, and a travel motor connected to the travel wheel is installed at one end of the travel seat;

[0022] A driving ring is fixedly sleeved on one end of the traveling wheel, and a semi-ring protrusion is sleeved on the outside of the driving ring;

[0023] The No. 1 chamber is arranged at the top of one side of the walking seat. The No. 1 piston member is slidably installed in the No. 1 chamber, and a contact wheel that intermittently contacts the semi-ring protrusion and the driving ring is rotatably installed at the bottom of the No. 1 piston member. A No. 2 spring for resetting is installed between the No. 1 piston member and the No. 1 chamber.

[0024] Furthermore, each sliding arm member comprises:

[0025] The pull arm is slidably arranged on the test seat, and a connecting groove is provided on the side wall of the pull arm;

[0026] A reserved slot is provided on the test arm for receiving the front end of the pull arm;

[0027] The locking seat is arranged at the front end of the pulling arm. The top and the bottom of the locking seat are both provided with locking grooves, and locking bolts are slidably penetrated through the locking grooves.

[0028] Furthermore, each sliding arm member also includes:

[0029] A positioning plate is integrally mounted on the pulling arm;

[0030] A trigger rod is slidably arranged on the positioning plate;

[0031] Two guide seats are symmetrically slidably arranged on the locking seat, and a locking rod is slidably engaged on each guide seat. Two push rods are symmetrically hinged at the bottom of the trigger rod, and the two push rods are respectively hinged to the two locking rods, and a No. 3 spring for resetting is arranged between the two locking rods.

[0032] Furthermore, each simulation component includes:

[0033] Two locking blocks are slidably engaged in the locking grooves of the locking seat correspondingly;

[0034] The simulated steel rope body is fixed in one piece between the two locking blocks, and the locking bolts slide through the locking blocks to lock the simulated steel rope body on the locking seat;

[0035] Two limit seats are correspondingly arranged on both sides of the two locking blocks, and each limit seat cooperates with a corresponding locking rod to complete the locking operation.

[0036] Furthermore, the switching element comprises:

[0037] The second chamber is arranged on the test arm. The second chamber is communicated with the walking part through a pipeline. A second piston part is slidably installed in the second chamber, and a fourth spring for resetting is installed between the second piston part and the second chamber;

[0038] The switching area is opened on the test arm;

[0039] The first trapezoidal groove is opened on one side of the front end of the second piston part;

[0040] The second trapezoidal groove is opened on the other side of the front end of the second piston part and is arranged in a staggered manner with the first trapezoidal groove;

[0041] The first toothed plate is arranged on one side in the switching area, and the second toothed plate is installed on the other side in the switching area;

[0042] The first connecting block is slidably penetrated through one side in the switching area, the second connecting block is slidably installed on the other side in the switching area, and rack areas are hidden on the side walls of the first connecting block and the second connecting block.

[0043] Furthermore, the switching part further includes:

[0044] The guiding frame is arranged on the switching area. Two lifting areas are symmetrically opened on the guiding frame. A first lifting block and a second lifting block are respectively slidably arranged in the two lifting areas. A fifth spring for resetting is arranged between the first lifting block, the second lifting block and the lifting area. A first gear is rotatably installed on one side of the first lifting block. The first gear is respectively meshed with the first toothed plate and the first connecting block. A second gear is rotatably installed on one side of the second lifting block. The second gear is respectively meshed with the second toothed plate and the second connecting block;

[0045] The first guiding wheel is arranged at the bottom of the first lifting block, and the first guiding wheel normally slides into the first trapezoidal groove. A second guiding wheel is installed at the bottom of the second lifting block, and the second guiding wheel normally slides out of the second trapezoidal groove. At this time, the second connecting block extends out and correspondingly inserts into the sliding arm part.

[0046] The present invention also provides a tensile test method for the tail truck in the hydraulic winch system. The tensile test method specifically includes the following steps:

[0047] Step 1: First, transfer the rack to the test bench, and then perform a multi-directional locking operation on the rack through the positioning fixture;

[0048] Step 2: Assemble the guiding ring on the wire winding frame of the tail truck, and then connect the test arm with the pulling part and wait for the tensile test;

[0049] Step 3: By setting two simulation parts, multiple simulation tests can be completed for each position on the wire winding frame;

[0050] Step 4: Through the design of the walking component, synchronously control the two simulation components to move at a predetermined traveling distance to complete the multi-point coverage test.

[0051] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0052] Through the collaborative cooperation setting of the walking component and the switching component, the present invention synchronously controls the two simulation components to move at a predetermined traveling distance to complete the multi-point coverage test, and adopts the unique design of the two simulation components moving in coordination with the walking component, so that during the predetermined walking process of the walking component, the switching component can be reciprocally controlled to switch, enabling the two simulation components to reciprocally switch and contact the wire take-up frame to complete the tensile test, thereby enabling multiple simulation tests to be carried out on the test points on the wire take-up frame and quickly finding the structural weaknesses of the wire take-up frame.

[0053] By setting the walking component, the walking wheel completes the movement and walking through the friction with the wire take-up frame, controls the guiding ring and the two simulation components to walk synchronously to change the detection points, and at the same time, a driving ring is added to the walking wheel, and a semi-circular protrusion is arranged on the driving ring. With such a design, during the single semi-circle walking distance of the walking motor, the contact wheel can be intermittently controlled to contact the semi-circular protrusion, thereby controlling the two simulation components to perform the switching detection operation.

[0054] By setting two simulation components, the present invention can complete multiple simulation tests on various positions on the wire take-up frame, optimizing the tensile test effect. First, control the pulling arm to move a certain distance on the test seat. During this path, the simulation components can fully contact the wire take-up frame, and at the same time, during this path, the trigger rod contacts the test seat to complete the extrusion. The two push rods control the two locking rods to overcome the movement of the third spring, so that the two locking rods are correspondingly inserted into the two limit seats, enabling additional locking of the locking block and avoiding the problem of the simulation components detaching during the pulling process.

[0055] Of course, it is not necessary for any product implementing the present invention to simultaneously achieve all the above-mentioned advantages. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] Figure 1 It is the overall front view of the present invention;

[0057] Figure 2 It is the connection schematic diagram of the positioning fixture and the tail car body of the present invention;

[0058] Figure 3 It is the schematic diagram of the positioning fixture of the present invention;

[0059] Figure 4 It is the schematic diagram of the pulling component of the present invention;

[0060] Figure 5 It is the installation schematic diagram of the guiding ring on the wire take-up frame of the present invention;

[0061] Figure 6 Schematic diagram of the distribution of two simulation parts and the wire take-up frame of the present invention;

[0062] Figure 7 Schematic diagram of the distribution of two simulation parts and the guide ring of the present invention;

[0063] Figure 8 Schematic diagram of two simulation parts of the present invention;

[0064] Figure 9 Schematic diagram of the sliding arm part of the present invention;

[0065] Figure 10 Schematic diagram of the installation of the pulling arm in the test seat of the present invention;

[0066] Figure 11 Schematic diagram of the separation of the simulation part and the locking seat of the present invention;

[0067] Figure 12 Schematic diagram of the walking part of the present invention;

[0068] Figure 13 Schematic diagram of the switching part of the present invention;

[0069] Figure 14 Schematic diagram of the installation of the second piston part in the second chamber of the present invention;

[0070] Figure 15 Schematic diagram of the distribution of the first gear and the first connecting block of the present invention;

[0071] Figure 16 Schematic diagram of the distribution of the first trapezoidal groove and the second trapezoidal groove of the present invention.

[0072] In the figure: 1. Test bench; 2. Positioning fixture; 201. Bi-directional positive and negative thread screw module; 202. Clamping seat; 203. Inner locking part; 204. Transmission arm; 3. Tail car body; 301. Frame; 302. Wire reel; 4. Guide ring; 401. Half ring; 402. Support ear; 403. Adjusting screw; 404. Moving wheel; 5. Guide track; 6. Test seat; 7. Test arm; 8. Sliding arm part; 801. Positioning plate; 802. Trigger rod; 803. Guide seat; 804. Locking rod; 805. Push rod; 9. Simulation part; 901. Locking block; 902. Simulated steel rope body; 903. Limit seat; 10. Slide seat; 11. Electric slide table; 12. Hydraulic cylinder; 13. Linear track; 14. Pulling seat; 15. Tensile sensor; 16. Connecting arm; 17. Telescopic rod; 18. Traveling wheel; 19. Driving ring; 20. Half ring protrusion; 21. First chamber; 22. First piston part; 23. Contact wheel; 24. Pulling arm; 25. Connecting groove; 26. Reserved groove; 27. Locking seat; 28. Locking groove; 29. Second chamber; 30. Second piston part; 31. Switching area; 32. First trapezoidal groove; 33. Second trapezoidal groove; 34. First toothed plate; 35. Second toothed plate; 36. First connecting block; 37. Second connecting block; 38. Rack area; 39. Guide frame; 40. First lifting block; 41. Second lifting block; 42. First gear; 43. Second gear; 44. First guide wheel; 45. Second guide wheel. Detailed implementation mode

[0073] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention.

[0074] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "periphery", etc. indicating orientation or positional relationships are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

[0075] Embodiment 1: The present invention provides a technical solution: As Figures 1 to 4 shown, a tail car tensile test device for a hydraulic winch system includes a test bench 1. An operating table is installed on one side of the upper surface of the test bench 1. The operating table is respectively connected to a positioning fixture 2, a pulling part, and a traveling part to complete control. It also includes:

[0076] The positioning fixture 2 is arranged on one side of the upper surface of the test bench 1. The tailstock body 3 is installed on the positioning fixture 2. The tailstock body 3 is composed of a frame 301, a wire winding frame 302 and a driving unit. The frame 301 is restricted on the test bench 1 through the positioning fixture 2. The positioning fixture 2 includes a plurality of clamping blocks distributed in a rectangular shape. The plurality of clamping blocks complete the preliminary restriction of the frame 301. The top of each clamping block is designed in an inclined shape to complete the guiding. A bidirectional positive and negative thread screw module 201 is slidably penetrated on the test bench 1. Clamping seats 202 are installed on the two screw nuts of the bidirectional positive and negative thread screw module 201. The clamping work on both sides of the frame 301 is completed through the two clamping seats 202. Slide rails are arranged on both sides of the bidirectional positive and negative thread screw module 201 on the test bench 1. Inner locking parts 203 are slidably arranged on the slide rails. The inner locking parts 203 are designed in an L shape, and a transmission arm 204 is hinged between the screw nut of the bidirectional positive and negative thread screw module 201 and the inner locking parts 203. The bidirectional positive and negative thread screw module 201, the transmission arm 204 and the inner locking parts 203 act synchronously;

[0077] It should be noted that when clamping the tailstock: by providing the positioning fixture 2, the tailstock is transferred to the test bench 1. First, the preliminary limit of the tailstock is completed through a plurality of clamping blocks. Then, the bidirectional positive and negative thread screw module 201 is started to control the two clamping seats 202 to move closer to each other, and the synchronous clamping and positioning of both sides of the tailstock frame 301 are carried out. At the same time, when the bidirectional positive and negative thread screw module 201 works, the screw nuts thereon synchronously control the transmission arm 204 to move, and cooperate with a plurality of inner locking parts 203 to move to lock the frame 301. Moreover, the inner locking parts 203 are designed in an L shape, which can stably complete the limit and avoid falling off. The overall installation and disassembly are convenient, which is beneficial for the inspectors to install and test;

[0078] The pulling part is arranged on the other side of the upper surface of the test bench 1 for tensile testing;

[0079] Such as Figure 5 and Figure 6As shown, the guide ring 4 is slidably sleeved on the take-up frame 302, a guide rail 5 is installed on one side of the guide ring 4, and a walking member for controlling the movement of the guide ring 4 is installed on one side of the guide rail 5, a test seat 6 is slidably engaged on the guide rail 5, and a No. 6 spring is installed between the test seat 6 and the guide rail 5. The elastic coefficient of the No. 6 spring is greater than that of the two No. 1 springs, so that the simulation member 9 can quickly contact with the take-up frame 302 for detection, and at the same time facilitates the subsequent reset switching operation of the simulation member 9, and a test seat 6 connected to the pulling member is slidably installed on the test seat 6 The test arm 7 has two No. 1 springs symmetrically installed between the test arm 7 and the test seat 6, a pulling steel rope is provided between the test arm 7 and the tension sensor 15 of the pulling member, and two sliding arm members 8 are symmetrically slidably penetrated at the front end of the test seat 6, and two simulation members 9 of different sizes are respectively provided at the tail of the two sliding arm members 8. A switching member is installed on the test arm 7, and the walking member can complete the switching control of the switching member. The walking member controls the switching member to reciprocate and connect the two sliding arm members 8 with the test arm 7 to complete the power connection, so as to control the two simulation members 9 to complete the switching test operation;

[0080] It should be noted that when assembling the guide ring 4, the two half rings 401 are first spliced ​​on the take-up frame 302 by providing the guide ring 4, and then the two half rings 401 are locked by reinforcing bolts, and then the adjusting screw 403 is rotated to push the roller seat and the moving wheel 404 to move and contact the take-up frame 302. At the same time, the roller seat can be restricted and the moving distance can be displayed by the guide rod, which is convenient for the test personnel to observe. Through the design of the guide ring 4 and the multiple moving wheels 404, the test point can be smoothly moved on the take-up frame 302 in coordination with the two simulation parts 9, enriching the test data.

[0081] In an embodiment of the present invention, the pulling member comprises:

[0082] A slide 10 is arranged on the upper surface of the test bench 1, an electric slide 11 is slidably engaged with the slide 10, and a hydraulic cylinder 12 is arranged in the slide 10 and is transmission-connected with the electric slide 11;

[0083] Two linear rails 13 are symmetrically arranged on both sides of the slide 10, and the two linear rails 13 are slidably connected to the electric slide 11 through guide rail sliders;

[0084] A pulling seat 14 is arranged at the output end of the electric slide 11, and a tension sensor 15 is installed on the pulling seat 14;

[0085] It should be noted that during the tensile test: by providing a pulling member, it is only necessary to connect the tensile force sensor 15, the pulling steel rope, and the test arm 7. Subsequently, the hydraulic cylinder 12 is started to control the movement of the electric sliding table 11 and the tensile force sensor 15, so that the corresponding simulation member 9 contacts the wire take-up frame 302 and then performs a pulling operation under a predetermined load, thereby obtaining the tensile performance of the wire take-up frame 302. At the same time, the design of the electric sliding table 11 enables the follow-up adjustment of the position during the tensile test, ensuring the pulling effect and avoiding interference with the pulling data. The overall test operation is simple and convenient, optimizing the overall tensile test steps;

[0086] In the embodiment of the present invention, the guiding ring 4 includes:

[0087] Two semi-rings 401, which are rotationally connected through a hinge. At one end of each of the two semi-rings 401, an ear 402 is installed, and a reinforcing bolt is detachably installed on the ear 402 to lock the two semi-rings 401 into a circular structure through the reinforcing bolt;

[0088] A plurality of adjusting screws 403 are distributed in a circular array on the guiding ring 4. Each adjusting screw 403 is threadedly screwed through the semi-ring 401 of the guiding ring 4. A roller seat is rotatably installed at the bottom of each adjusting screw 403, and a moving wheel 404 that contacts the wire take-up frame 302 is rotatably installed in the roller seat. A handwheel is installed at the tail of each adjusting screw 403, and a guiding rod is installed on each roller seat. The guiding rod is correspondingly slidably passed through the semi-ring 401 of the guiding ring 4, and a scale bar is arranged on one side of the guiding rod to facilitate the observation of the position;

[0089] As Figure 9 、 Figure 10 and Figure 11 shown, in the embodiment of the present invention, each sliding arm member 8 includes:

[0090] A pulling arm 24, which is slidably passed through the test seat 6. An engaging groove 25 is formed on the side wall of the pulling arm 24, and a stop block is arranged on one side of the pulling arm 24 to limit the extreme position of the pulling arm 24 on the test seat 6 and prevent it from falling off;

[0091] A reserved groove 26 is formed on the test arm 7 for the accommodation of the front end of the pulling arm 24;

[0092] A locking seat 27 is arranged at the front end of the pulling arm 24. Locking grooves 28 are reserved at the top and bottom of the locking seat 27, and locking bolts are slidably passed through the locking grooves 28;

[0093] Each sliding arm member 8 further includes:

[0094] A positioning plate 801, which is integrally sleeved on the pulling arm 24;

[0095] A trigger rod 802, which is slidably passed through the positioning plate 801;

[0096] Two guiding seats 803 are symmetrically and slidably arranged on the locking seat 27. A locking rod 804 is slidably engaged on each guiding seat 803. Two push rods 805 are symmetrically hinged to the bottom of the trigger rod 802. The two push rods 805 are respectively hinged to the two locking rods 804, and a third spring for resetting is arranged between the two locking rods 804;

[0097] It should be noted that during the simulation test: by providing the simulation part 9, the pulling arm 24 is connected to the test arm 7. Then when the pulling member pulls the test arm 7, first control the pulling arm 24 to move a certain distance on the test seat 6. In this path, the simulation part 9 can fully contact the wire reel 302. At the same time, in this path, the trigger rod 802 contacts the test seat 6 to complete extrusion. The two push rods 805 control the two locking rods 804 to move against the third spring, so that the two locking rods 804 are correspondingly inserted into the two limiting seats 903, and the locking block 901 can be additionally locked to avoid the problem of the simulation part 9 detaching during the pulling process. At the same time, the simulation part 9 adopts the separation design of the locking block 901 and the locking groove 28, which is beneficial for subsequent replacement and reduces the subsequent maintenance difficulty;

[0098] As Figure 7 and Figure 8 shown, in the embodiment of the present invention, each simulation part 9 includes:

[0099] Two locking blocks 901 are correspondingly slidably engaged into the locking grooves 28 of the locking seat 27;

[0100] The simulation steel rope body 902 is integrally fixed between the two locking blocks 901, and the locking bolt correspondingly slides through the locking block 901 to lock the simulation steel rope body 902 on the locking seat 27;

[0101] Two limiting seats 903 are correspondingly arranged on both sides of the two locking blocks 901, and each limiting seat 903 cooperates with the corresponding locking rod 804 to complete the locking operation.

[0102] Among them, electrical components such as the traveling motor, the tension sensor 15, the electric sliding table 11, and the hydraulic cylinder 12 are all connected with switches through wires, and the switches are electrically connected with a controller, and the specific structure of the controller is not limited.

[0103] Embodiment 2: Based on the traveling member provided in Embodiment 1, this embodiment provides a further technical solution for the traveling member.

[0104] As Figure 12 shown, the traveling member includes:

[0105] The connecting arm 16 is arranged on one side of the guiding track 5, and a telescopic rod 17 is installed at the tail of the connecting arm 16;

[0106] A travel seat is arranged at the bottom of the telescopic rod 17, a travel wheel 18 in contact with the take-up frame 302 is rotatably mounted on the travel seat, a friction material is sleeved on the outside of the travel wheel 18, and a travel motor connected to the travel wheel 18 is installed at one end of the travel seat;

[0107] A driving ring 19 is fixedly sleeved on one end of the traveling wheel 18, and a semi-ring protrusion 20 is sleeved on the outside of the driving ring 19, and the semi-ring protrusion 20 is provided with guiding inclined surfaces at both ends;

[0108] The first chamber 21 is arranged at the top of one side of the traveling seat, and the first piston member 22 is slidably installed in the first chamber 21, and a contact wheel 23 intermittently contacting with the semi-ring protrusion 20 and the driving ring 19 is rotatably installed at the bottom of the first piston member 22, and a second spring for resetting is installed between the first piston member 22 and the first chamber 21, and a certain amount of medium is injected into the first chamber 21, and the medium is specifically oil;

[0109] It should be noted that: when the simulation component 9 is controlled to move: a walking component is provided, since a telescopic rod 17 is provided on the connecting arm 16, the position of the walking wheel 18 is adjusted by the telescopic rod 17 until the walking wheel 18 contacts the wire take-up frame 302 and waits for subsequent walking, and then the walking motor is started to drive the walking wheel 18 to rotate, and the movement is completed by the friction between the walking wheel 18 and the wire take-up frame 302, and the guide ring 4 and the two simulation components 9 are controlled to move synchronously to complete the change of the detection point position, and at the same time, a driving ring 19 is added to the walking wheel 18, and a semi-ring protrusion 20 is provided on the driving ring 19. With this design, the walking motor can intermittently control the contact wheel 23 to contact the semi-ring protrusion 20 in a single half-circle walking distance, thereby controlling the two simulation components 9 to switch the detection operation.

[0110] Embodiment 3: Based on the switching component provided in Embodiment 1, this embodiment provides a further technical solution of the switching component.

[0111] like Figure 13 and Figure 14 As shown, the switching element includes:

[0112] The second chamber 29 is arranged on the test arm 7. The second chamber 29 is connected with the first chamber 21 of the walking member through a pipeline. A second piston member 30 is slidably installed in the second chamber 29. A fourth spring for resetting is installed between the second piston member 30 and the second chamber 29.

[0113] A switching area 31 is provided on the test arm 7;

[0114] The first trapezoidal groove 32 is formed at one side of the front end of the second piston member 30;

[0115] The second trapezoidal groove 33 is formed on the other side of the front end of the second piston member 30 and is arranged offset from the first trapezoidal groove 32;

[0116] The first toothed plate 34 is arranged on one side within the switching area 31, and the second toothed plate 35 is installed on the other side within the switching area 31;

[0117] The first connecting block 36 is slidably inserted through one side within the switching area 31, and the second connecting block 37 is slidably installed on the other side within the switching area 31. Rack areas 38 are hiddenly arranged on the side walls of the first connecting block 36 and the second connecting block 37;

[0118] As Figure 15 and Figure 16 shown, in the embodiment of the present invention, the switching member further includes:

[0119] The guiding frame 39 is arranged on the switching area 31. Two lifting areas are symmetrically formed on the guiding frame 39. The first lifting block 40 and the second lifting block 41 are respectively slidably arranged in the two lifting areas. Fifth springs for resetting are arranged between the first lifting block 40, the second lifting block 41 and the lifting areas. A first gear 42 is rotatably installed on one side of the first lifting block 40. The first gear 42 meshes with the first toothed plate 34 and the first connecting block 36 respectively. A second gear 43 is rotatably installed on one side of the second lifting block 41. The second gear 43 meshes with the second toothed plate 35 and the second connecting block 37 respectively;

[0120] The first guiding wheel 44 is arranged at the bottom of the first lifting block 40, and the first guiding wheel 44 normally slides down into the first trapezoidal groove 32. The second guiding wheel 45 is installed at the bottom of the second lifting block 41, and the second guiding wheel 45 normally slides out of the second trapezoidal groove 33. At this time, the second connecting block 37 extends out and correspondingly inserts into the connecting groove 25 of the sliding arm member 8;

[0121] It should be noted that when controlling the switching test of the two simulation parts 9: by providing a switching part, under normal conditions, that is, when the contact wheel 23 is in contact with the driving ring 19, at this time, the second piston part 30 is in the initial state. Control the second guide wheel 45 to slide out of the second trapezoidal groove 33. At this time, the second connecting block 37 is correspondingly engaged into the connecting groove 25 to complete the locking of the sliding arm part 8. After that, the pulling part only needs to pull the test arm 7, and synchronously control the corresponding sliding arm part 8 and simulation part 9 to move and contact the wire take-up frame 302 to complete the tensile test. When the walking part moves the next walking distance, at this time, the contact wheel 23 is in contact with the semi-ring protrusion 20, pushing the first piston part 22 to move in the first chamber 21, pushing the medium in the first chamber 21 into the second chamber 29, pushing the second piston part 30 to extend and move, controlling the positions of the first trapezoidal groove 32 and the second trapezoidal groove 33 to change, that is, the first guide wheel 44 moves out of the first trapezoidal groove 32, pushing the first lifting block 40 to move in the lifting area, so that the first gear 42 rises under the restriction of the first toothed plate 34, controlling the first connecting block 36 to move and correspondingly insert into the connecting groove 25 to complete the locking. With the design of the first toothed plate 34, the first rack and the first connecting block 36, when the first gear 42 rises, a rotational amount is superimposed, so that the moving path of the first connecting block 36 is extended, expanding the contact distance between the first connecting block 36 and the sliding arm part 8, further improving the stability of the connection. The second guide wheel 45 slides into the second trapezoidal groove 33, the second lifting block 41 moves, pulling the second gear 43 to move downward relatively, controlling the second connecting block 37 to move downward and disengage from the connecting groove 25 to complete the separation, thereby completing the switching and locking of the two simulation parts 9, obtaining different test data, and only through the driving ring 19 and the semi-ring protrusion 20 of the walking part can the active switching be completed. Since the two simulation parts 9 are arranged at intervals, in the detection path, for a single point, double tests are carried out through the two simulation parts 9, optimizing the detection data and facilitating the subsequent accurate acquisition of the detection data.

[0122] Embodiment 4: A method for tensile test of the tail car in a hydraulic winch system, the tensile test method specifically includes the following steps:

[0123] Step 1: First, transfer the frame 301 to the test bench 1, and then perform multi-directional locking operations on the frame 301 through the positioning fixture 2;

[0124] Step 2: Assemble the guide ring 4 on the wire take-up frame 302 of the tail car, and then connect the test arm 7 with the pulling part and wait for the tensile test;

[0125] Step 3: By providing two simulation parts 9, multiple simulation tests can be completed for each position on the wire take-up frame 302;

[0126] Step 4: Through the design of the walking part, synchronously control the two simulation parts 9 to move at a predetermined travel distance to complete the multi-point coverage test.

[0127] The present invention provides a tensile test device and a test method for a tail truck in a hydraulic winch system. The specific working principle is as follows: First, transfer the frame 301 to the test bench 1, and then perform multi-directional locking operations on the frame 301 through the positioning fixture 2 to ensure the stability of subsequent tests. After that, assemble the guiding ring 4 on the wire take-up frame 302 of the tail truck, and then connect the test arm 7 with the pulling member and wait for the tensile test. By providing two simulation members 9, multiple simulation tests can be completed for various positions on the wire take-up frame 302, optimizing the tensile test effect. At the same time, the design of the walking member is adopted to synchronously control the two simulation members 9 to move at a predetermined traveling distance to complete multi-point coverage tests. Moreover, the unique design of the coordinated movement of the two simulation members 9 and the walking member enables the walking member to reciprocally control the switching member to switch during the predetermined walking process, so that the two simulation members 9 can reciprocally switch to contact the wire take-up frame 302 to complete the tensile test. In this way, multiple simulation tests can be carried out on the test points on the wire take-up frame 302, and the structural weaknesses of the wire take-up frame 302 can be quickly found, which is beneficial to subsequent structural upgrades. Through the design of the two simulation members 9, it can be checked whether the tail truck can meet the configuration and use of steel ropes of various specifications, avoiding problems such as deformation and damage in actual use, ensuring the stable operation of the winch system, and reducing the operation risk.

[0128] In the description of this specification, the description referring to terms such as "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in connection 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.

[0129] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. This specification selects and specifically describes these embodiments to better explain the principle and practical application of the present invention, so that those skilled in the relevant technical field can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A device for testing the tensile strength of a tail car in a hydraulic capstan system, comprising a test bench (1), characterized in that: Also includes: A positioning fixture (2) is arranged on one side of the upper surface of the test bench (1), and a tail car body (3) is installed on the positioning fixture (2), and the tail car body (3) is composed of a frame (301), a wire take-up frame (302), and a drive unit; A pulling piece, arranged on the other side of the upper surface of the test bench (1) for use in tensile testing; A guide ring (4) is slidably sleeved on a wire take-up frame (302), a guide rail (5) is installed on one side of the guide ring (4), and a walking member for controlling the movement of the guide ring (4) is installed on one side of the guide rail (5), a test seat (6) is slidably engaged on the guide rail (5), a test arm (7) connected to the pulling member is slidably installed on the test seat (6), and two sliding arm members (8) are symmetrically slidably penetrated at the front end of the test seat (6), two simulation members (9) of different sizes are respectively arranged at the tail ends of the two sliding arm members (8), and a switching member is installed on the test arm (7), and the walking member can complete the switching control of the switching member, and the two sliding arm members (8) and the test arm (7) are reciprocated by the walking member to complete the power connection, so as to control the two simulation members (9) to complete the switching test operation; The walking parts include: A connecting arm (16) is arranged on one side of the guide track (5), and a telescopic rod (17) is installed at the rear of the connecting arm (16); A travel seat is arranged at the bottom of the telescopic rod (17), a travel wheel (18) contacting the wire take-up frame (302) is rotatably mounted on the travel seat, and a travel motor drivingly connected to the travel wheel (18) is mounted at one end of the travel seat; A driving ring (19) is fixedly sleeved on one end of the traveling wheel (18), and a semi-ring protrusion (20) is sleeved on the outside of the driving ring (19); A No. 1 chamber (21) is arranged at the top of one side of the walking seat, a No. 1 piston member (22) is slidably mounted in the No. 1 chamber (21), and a contact wheel (23) intermittently contacting the semi-ring protrusion (20) and the driving ring (19) is rotatably mounted at the bottom of the No. 1 piston member (22), and a No. 2 spring for resetting is installed between the No. 1 piston member (22) and the No. 1 chamber (21); The switch includes: A second chamber (29) is arranged on the test arm (7), the second chamber (29) is connected to the travel member through a pipeline, a second piston member (30) is slidably mounted in the second chamber (29), and a fourth spring for resetting is mounted between the second piston member (30) and the second chamber (29); A switching area (31) is provided on the test arm (7); A first trapezoidal groove (32) is formed on one side of the front end of the second piston member (30); A second trapezoidal groove (33) is provided at the other side of the front end of the second piston member (30) and is arranged offset from the first trapezoidal groove (32); A first tooth plate (34) is arranged on one side of the switching area (31), and a second tooth plate (35) is installed on the other side of the switching area (31); A first connecting block (36) is slidably disposed on one side of the switching area (31), and a second connecting block (37) is slidably mounted on the other side of the switching area (31), and rack areas (38) are hidden on the side walls of the first connecting block (36) and the second connecting block (37); The switch also includes: A guide frame (39) is arranged on the switching area (31), and two lifting areas are symmetrically provided on the guide frame (39), and a No. 1 lifting block (40) and a No. 2 lifting block (41) are respectively slidably arranged in the two lifting areas, and a No. 5 spring for resetting is arranged between the No. 1 lifting block (40), the No. 2 lifting block (41) and the lifting area, and a No. 1 gear (42) is rotatably installed on one side of the No. 1 lifting block (40), and the No. 1 gear (42) is respectively meshed with the No. 1 gear plate (34) and the No. 1 connecting block (36), and a No. 2 gear (43) is rotatably installed on one side of the No. 2 lifting block (41), and the No. 2 gear (43) is respectively meshed with the No. 2 gear plate (35) and the No. 2 connecting block (37); A No. 1 guide wheel (44) is arranged at the bottom of the No. 1 lifting block (40), and the No. 1 guide wheel (44) normally slides down into the No. 1 trapezoidal groove (32). A No. 2 guide wheel (45) is installed at the bottom of the No. 2 lifting block (41), and the No. 2 guide wheel (45) normally slides down out of the No. 2 trapezoidal groove (33). At this time, the No. 2 connecting block (37) extends out and is correspondingly inserted into the sliding arm member (8).

2. A tail car tensile test device for a hydraulic capstan system according to claim 1, characterized in that: The pulling member comprises: A slide seat (10) is arranged on the upper surface of the test bench (1), an electric slide table (11) is slidably engaged with the slide seat (10), and a hydraulic cylinder (12) is arranged inside the slide seat (10) and is transmission-connected to the electric slide table (11); Two linear rails (13) are symmetrically arranged on both sides of the slide seat (10), and the two linear rails (13) are slidably connected to the electric slide table (11) through guide rail sliders; The pulling seat (14) is arranged at the output end of the electric slide (11), and a tension sensor (15) is installed on the pulling seat (14).

3. The tail car tensile test device for a hydraulic capstan system according to claim 1, characterized in that: The guide ring (4) comprises: The two half rings (401) are rotatably connected via a hinge, and a support ear (402) is installed at one end of the two half rings (401); A plurality of adjusting screws (403) are distributed in a circular array on the guide ring (4), each adjusting screw (403) being threadedly screwed through a half ring (401) of the guide ring (4), a roller seat being rotatably mounted at the bottom of the adjusting screw (403), and a moving wheel (404) being rotatably mounted in the roller seat and contacting the wire take-up frame (302).

4. The tail car tensile test device for a hydraulic capstan system according to claim 1, characterized in that: Each sliding arm member (8) comprises: A pull arm (24) is slidably mounted on the test seat (6), and a connecting groove (25) is formed on a side wall of the pull arm (24); A reserved groove (26) is provided on the test arm (7) for receiving the front end of the pulling arm (24); The locking seat (27) is arranged at the front end of the pulling arm (24), and locking grooves (28) are reserved at the top and bottom of the locking seat (27), and locking bolts are slidably penetrated through the locking grooves (28).

5. The tail car tensile test device for a hydraulic capstan system according to claim 4, characterized in that: Each sliding arm member (8) also includes: A positioning plate (801) is integrally sleeved on the pulling arm (24); A trigger rod (802) is slidably disposed on the positioning plate (801); Two guide seats (803) are symmetrically slidably arranged on the locking seat (27), and a locking rod (804) is slidably engaged on each guide seat (803). Two push rods (805) are symmetrically hinged at the bottom of the trigger rod (802), and the two push rods (805) are respectively hinged to the two locking rods (804), and a No. 3 spring for resetting is arranged between the two locking rods (804).

6. The tail car tensile test device for a hydraulic capstan system according to claim 5, characterized in that: Each simulation element (9) comprises: Two locking blocks (901) are correspondingly slidably engaged in the locking grooves (28) of the locking seat (27); The simulated steel rope body (902) is integrally fixed between the two locking blocks (901), and the locking bolts slide through the locking blocks (901) to lock the simulated steel rope body (902) on the locking seat (27); The two limiting seats (903) are correspondingly arranged on both sides of the two locking blocks (901), and each limiting seat (903) cooperates with a corresponding locking rod (804) to complete the locking operation.

7. A method for testing the tensile strength of a tail car in a hydraulic capstan system, using a device for testing the tensile strength of a tail car in a hydraulic capstan system as claimed in any one of claims 1 to 6, characterized in that: The tensile test method specifically comprises the following steps: Step 1: first, transfer the rack (301) to the test bench (1), and then perform a multi-directional locking operation on the rack (301) using a positioning fixture (2); Step 2, assembling the guide ring (4) on the take-up frame (302) of the tail vehicle, and then connecting the test arm (7) to the pulling member to wait for the tensile test; Step 3: by setting two simulation parts (9), multiple simulation tests can be completed for various positions on the take-up frame (302); Step 4: By designing the moving parts, the two simulation parts (9) are synchronously controlled to move at a predetermined travel distance to complete the multi-point coverage test.

Images