Mining high-pressure rubber hose assembly detection equipment

Abstract

The invention belongs to the field of rubber hose assembly detection, and provides mining high-pressure rubber hose assembly detection equipment which comprises a detection table, a fixed end clamping assembly is installed at one end of the top of the detection table, and the fixed end clamping assembly is used for clamping one end of a rubber hose assembly and clamping the other end of the rubber hose assembly. The buckling sleeve at one end of the rubber hose assembly is blocked; a mounting seat is mounted at the other end of the top of the detection table, and a movable end clamping assembly is mounted on the mounting seat. According to the invention, a plurality of rubber hose assemblies with the same length can be detected at the same time, after the pulling force is maintained for a period of time, the buckling sleeve of the unqualified rubber hose assembly falls off, and the buckling sleeve of the qualified rubber hose assembly is kept in an original shape, so that the quality of the rubber hose assembly can be instantly distinguished, and the detection efficiency is improved. The detection efficiency and the detection accuracy are greatly improved, and the situation that workers on a mine are injured due to unqualified products is avoided.

Description

Technical Field

[0001] This invention belongs to the field of rubber hose assembly testing, and particularly relates to a testing device for mining high-pressure rubber hose assemblies. Background Technology

[0002] High-pressure rubber hose assemblies are critical connecting components used in hydraulic systems to transmit high-pressure fluids (such as hydraulic oil, water, emulsions, etc.). A complete high-pressure rubber hose assembly mainly consists of three parts: the high-pressure rubber hose, the connector, and the crimping sleeve. The connector is fixed to the end of the high-pressure rubber hose by the crimping sleeve. Due to the physical and chemical properties of the inner rubber layer of the high-pressure rubber hose, the effects of the transported medium on the pipeline (such as friction, impact, corrosion, etc.) are reduced. Furthermore, the flexible nature of the rubber hose makes it widely used in the special working conditions of mineral processing and transportation in mines.

[0003] Mining high-pressure rubber hose assemblies are subject to extremely high instantaneous pressure due to the high liquid pressure inside the hoses. Hydraulic pump stations often operate at pressures exceeding 30 MPa. Instability and impact from the hydraulic pump cause this pressure to rise. If the crimping amount of the sleeve is incorrect during manufacturing, the joint may detach. This detachment can lead to whiplash, causing serious injury to nearby personnel. Therefore, the installation strength of the crimping sleeve must be tested before the high-pressure rubber hose assembly leaves the factory.

[0004] However, the current inspection of crimping sleeves for high-pressure rubber hose assemblies in mining mainly relies on manual inspection. After the crimping sleeve is crimped, workers pick up the rubber hose assembly to check for any obvious looseness in the crimping sleeve. This method is not only time-consuming and labor-intensive, but also inefficient. Furthermore, it cannot accurately test the installation strength of the crimping sleeve. If quality problems occur, it can lead to injury to miners. Summary of the Invention

[0005] The purpose of this invention is to provide a testing device for mining high-pressure rubber hose assemblies, which aims to solve the technical problems of low efficiency and inaccurate testing caused by manual testing of the installation strength of the crimping sleeve in the prior art.

[0006] The present invention is implemented as follows: a testing device for a mining high-pressure rubber hose assembly includes a testing platform. A fixed end clamping assembly is installed at one end of the top of the testing platform. The fixed end clamping assembly is used to clamp one end of the rubber hose assembly and to block the crimping sleeve at one end of the rubber hose assembly.

[0007] A mounting base is installed at the other end of the top of the testing station. A movable end clamping assembly is installed on the mounting base. The movable end clamping assembly is used to clamp the other end of the rubber hose assembly and to block the crimping sleeve at the other end of the rubber hose assembly.

[0008] The mounting base is also equipped with a tensioning mechanism. The output end of the tensioning mechanism is connected to the output end of the movable end clamping component. The tensioning mechanism is used to elastically stretch the crimping sleeve of the rubber hose assembly through the output end of the movable end clamping component to detect whether the crimping sleeve of the rubber hose assembly is securely installed. If it is not securely installed, the crimping sleeve will be pulled off, indicating that the rubber hose assembly is unqualified.

[0009] Further technical solution: The fixed end clamping assembly includes a first mounting plate fixedly installed on the testing table. A fixed bracket is fixedly installed on the first mounting plate. The top of the fixed bracket has a first lower clamping groove adapted to the rubber hose assembly. A first clamping component is installed on the side of the first mounting plate. The first clamping component is used to clamp one end of the rubber hose assembly inside the first lower clamping groove and to block the clamping sleeve of the rubber hose assembly. A first limiting guide plate is installed on the side of the first mounting plate opposite to the movable end clamping assembly. A limiting channel is formed between the first limiting guide plate and the first mounting plate. A first locking component is installed on the side of the first limiting guide plate. The first locking component is used to lock the first clamping component to prevent the rubber hose assembly from coming out of the first lower clamping groove due to loosening of the first clamping component.

[0010] Further technical solution: The first clamping assembly includes a vertical plate fixedly installed on the side of the first mounting plate, an mounting block is installed on the vertical plate, a rotating rod is rotatably installed on the mounting block, a fixing plate is installed at the bottom of the rotating rod, an upper slot adapted to the rubber hose assembly is opened at the bottom of the fixing plate, and a limiting plate that cooperates with the first locking assembly is connected to the end of the rotating rod.

[0011] A further technical solution: The bottom of the fixing plate is fixedly connected with a positioning pin, and a first positioning slot is provided at the top of the fixing base at a corresponding position. When the fixing plate jams the rubber hose assembly, the positioning pin is inserted into the first positioning slot.

[0012] In order for the positioning pin to be smoothly inserted into the first positioning slot, the mounting block is slidably mounted on the upright plate, and a first compression spring is connected between the mounting block and the upright plate.

[0013] Further technical solution: The movable end clamping assembly includes a second mounting plate fixedly mounted on the mounting base. A slider is slidably mounted on the second mounting plate. A movable retainer is fixedly mounted on the top of the slider. A second lower retaining groove adapted to the rubber hose assembly is opened on the top of the movable retainer. A second clamping assembly is mounted on the side of the second mounting plate opposite to the fixed end clamping assembly. The second clamping assembly is used to clamp one end of the rubber hose assembly inside the second lower retaining groove and to block the clamping sleeve of the rubber hose assembly. A second limiting guide plate is fixedly mounted on the side of the second mounting plate. A limiting channel is formed between the second limiting guide plate and the second mounting plate. A second locking assembly is mounted on the side of the second limiting guide plate. The second locking assembly is used to lock the second clamping assembly to prevent the rubber hose assembly from coming out of the second lower retaining groove due to loosening of the second clamping assembly.

[0014] Further technical solution: The second clamping assembly includes the first clamping assembly, and the second clamping assembly also includes a slide rail. The slide rail is fixedly installed on the side of the rotating rod. Unlike the structure of the first clamping assembly, the fixed clamping plate is slidably installed on the slide rail, and is referred to as the movable clamping plate.

[0015] Further technical solution: The structure of the first locking component is the same as that of the second locking component. The second locking component includes a mounting box fixedly installed on the side of the second limiting guide plate. A push plate is slidably installed inside the mounting box. A second compression spring is connected between the bottom of the push plate and the mounting box. A locking block is slidably installed on the side of the mounting box. A locking slot adapted to the locking block is opened on the side of the push plate. One end of the locking block can be inserted into the locking slot to lock the push plate. A locking strip is fixedly connected to the side of the locking block near the limiting plate. An active hole for the locking strip to move is opened on the push plate. A limiting groove adapted to the locking strip is opened on the side of the limiting plate. One end of the locking strip can pass through the second limiting guide plate and be inserted into the limiting groove.

[0016] To facilitate the insertion and removal of the locking block, a push-pull rod is connected to the side of the locking block.

[0017] A further technical solution: The tensioning mechanism includes a pull plate slidably mounted on a mounting base, a tension spring connecting the pull plate and the slider, a first servo motor mounted on the mounting base, a first lead screw fixedly connected to the output shaft of the first servo motor, and one end of the first lead screw threadedly connected to the pull plate.

[0018] Further technical solution: The stretching mechanism further includes a feeding protection component, which includes a fixed guide plate fixedly installed on the pull plate. The end of the fixed guide plate away from the second mounting plate is a closed end. A buffer pad is provided on the inner side wall of the closed end. An extension guide plate is slidably installed inside the fixed guide plate. A third compression spring is connected between the extension guide plate and the pull plate. Initially, the third compression spring is in a compressed state, and the end of the extension guide plate abuts against the side of the movable card seat. The extension guide plate communicates with the second lower card slot.

[0019] A further technical solution: The mounting base is slidably mounted on the testing table, and an adjustment mechanism is also installed on the testing table. The adjustment mechanism includes a second servo motor, which is mounted on the testing table. The output shaft of the second servo motor is fixedly connected to a second lead screw, and one end of the second lead screw is threadedly connected to the mounting base.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] 1. This invention can simultaneously inspect multiple rubber hose assemblies of the same length. After holding the tension for a period of time, the crimping sleeve of the unqualified rubber hose assembly will fall off, while the crimping sleeve of the qualified rubber hose assembly will remain unchanged. This allows for instant differentiation between the good and bad rubber hose assemblies, greatly improving the inspection efficiency and accuracy, and preventing unqualified products from causing injury to mine workers.

[0022] 2. In this invention, a positioning pin is connected to the bottom of the fixing plate, and a first positioning slot is opened at the top of the fixing seat. When the fixing plate locks the rubber hose assembly, the positioning pin is inserted into the first positioning slot, which makes the installation accuracy between the fixing plate and the fixing seat higher, and allows the clamping sleeve to be blocked by the fixing plate and the fixing seat, thus preventing the clamping sleeve from loosening.

[0023] 3. In this invention, a tension spring is set between the pull plate and the slider, so that the tension spring can continuously apply a tension to the clamping sleeve. When the clamping sleeve is not installed properly, the clamping sleeve will loosen, and the tension spring will contract instantly. It will drive the clamping sleeve to fall off the hose through the movable bracket, thereby making the test results more obvious and easier for the staff to observe.

[0024] 4. In this invention, by setting up a material discharge protection component, when the clamping sleeve is released from the hose, the movable retainer gives the clamping sleeve a large initial acceleration, causing the clamping sleeve and the connector to slide along the extended guide plate. Finally, the clamping sleeve and the connector will hit the end of the fixed guide plate. The buffer pad will cushion the clamping sleeve and the connector, preventing damage to the clamping sleeve and the connector, and also preventing them from being ejected and injuring the workers.

[0025] 5. The present invention, by setting an adjustment mechanism, enables the device to test rubber hose assemblies of the same model but different lengths. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0027] Figure 2 This is a schematic diagram of the fixed-end clamping assembly in this invention.

[0028] Figure 3 This is a schematic diagram of the structure of the first clamping component in this invention.

[0029] Figure 4 In this invention Figure 2 Enlarged diagram of point A in the middle.

[0030] Figure 5 This is a schematic diagram of the installation structure of the movable end clamping component and the stretching mechanism in this invention from the left side.

[0031] Figure 6 This is a schematic diagram of the right side view of the installation structure of the movable end clamping component and the stretching mechanism in this invention.

[0032] Figure 7 In this invention Figure 6 Enlarged diagram of point B in the middle.

[0033] Figure 8 This is a schematic diagram of the structure of the second clamping component in this invention.

[0034] Figure 9 This is a schematic diagram of the structure of the movable end clamping component in the clamping state of the present invention.

[0035] Figure 10 In this invention Figure 9 Enlarged diagram of point C in the middle.

[0036] Figure 11 This is a schematic diagram of the push plate in this invention.

[0037] Figure 12 This is a partial top view of the installation structure of the material feeding protection component in this invention.

[0038] In the attached diagram: 1. Testing table; 2. Fixed end clamping assembly; 21. First clamping assembly; 211. Rotating rod; 212. Fixed clamping plate; 213. Positioning pin; 214. Upper slot; 215. Mounting block; 216. First compression spring; 217. Vertical plate; 218. Limiting groove; 219. Limiting plate; 22. Fixed bracket; 221. First positioning slot; 23. First mounting plate; 24. First lower slot; 25. First limiting guide plate; 26. First locking assembly; 3. Movable end clamping assembly; 31. Second clamping assembly; 311. Slide rail; 312. Movable clamping plate; 32. Second mounting plate; 33. Slider; 34. Movable bracket; 341. Second positioning slot; 35. Second lower slot; 36. Second locking assembly; 361. Locking insert; 362. Push plate; 363. Locking block; 364. Movable hole; 365. Second compression spring; 366. Mounting box; 367. Limit stop; 368. Push-pull rod; 369. Locking slot; 37. Second limit guide plate; 4. Tensioning mechanism; 41. Pull plate; 42. Material discharge protection assembly; 421. Third compression spring; 422. Extension guide plate; 423. Fixed guide plate; 424. Buffer pad; 43. First servo motor; 44. Tension spring; 45. First lead screw; 5. Mounting base; 6. Adjustment mechanism; 61. Second lead screw; 62. Second servo motor; 7. Tension scale line. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0040] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0041] like Figures 1-12 As shown, a testing device for a mining high-pressure rubber hose assembly provided by the present invention includes a testing platform 1. A fixed end clamping assembly 2 is installed at one end of the top of the testing platform 1. The fixed end clamping assembly 2 is used to clamp one end of the rubber hose assembly and to block the crimping sleeve at one end of the rubber hose assembly.

[0042] The other end of the top of the testing platform 1 is equipped with a mounting base 5, and a movable end clamping assembly 3 is installed on the mounting base 5. The movable end clamping assembly 3 is used to clamp the other end of the rubber hose assembly and to block the crimping sleeve at the other end of the rubber hose assembly.

[0043] The mounting base 5 is also equipped with a tensioning mechanism 4. The output end of the tensioning mechanism 4 is connected to the output end of the movable end clamping component 3. The tensioning mechanism 4 is used to elastically stretch the crimping sleeve of the rubber hose assembly through the output end of the movable end clamping component 3 to detect whether the crimping sleeve of the rubber hose assembly is securely installed. If it is not securely installed, the crimping sleeve will be pulled off, indicating that the rubber hose assembly is unqualified.

[0044] In use, first install one end of the rubber hose assembly on the fixed end clamping component 2, and then install the other end of the rubber hose assembly on the movable end clamping component 3. Then, the output end of the movable end clamping component 3 is stretched by the tensioning mechanism 4. The movable end clamping component 3 drives the crimping sleeve of the rubber hose assembly to move and continuously applies a certain pressure to the crimping sleeve. When the crimping sleeve is not installed properly, the crimping sleeve will be pulled off by the movable end clamping component 3, thereby accurately detecting the installation strength of the crimping sleeve and avoiding the occurrence of defective products that may cause injury to the staff.

[0045] This invention provides a testing device for high-pressure rubber hose assemblies used in mining. In this embodiment, the fixed end clamping assembly 2 includes a first mounting plate 23 fixedly installed on the testing table 1. A fixed bracket 22 is fixedly installed on the first mounting plate 23. The top of the fixed bracket 22 has a first lower clamping groove 24 adapted to the rubber hose assembly. A first clamping assembly 21 is installed on the side of the first mounting plate 23. The first clamping assembly 21 is used to clamp one end of the rubber hose assembly inside the first lower clamping groove 24 and to block the clamping sleeve of the rubber hose assembly. A first limiting guide plate 25 is installed on the side of the first mounting plate 23 away from the movable end clamping assembly 3. A limiting channel is formed between the first limiting guide plate 25 and the first mounting plate 23. A first locking assembly 26 is installed on the side of the first limiting guide plate 25. The first locking assembly 26 is used to lock the first clamping assembly 21 to prevent the rubber hose assembly from coming out of the first lower clamping groove 24 due to loosening of the first clamping assembly 21.

[0046] Specifically, the diameter of the first lower groove 24 is the same as the diameter of the hose of the rubber hose assembly, or the diameter of the first lower groove 24 is 0.1~0.3mm larger than the diameter of the hose of the rubber hose assembly.

[0047] In use, first insert one end of the rubber hose assembly into the first lower slot 24, then tighten the rubber hose assembly so that the clamping sleeve of the rubber hose assembly abuts against the side of the fixing seat 22. Then fasten the first clamping component 21 so that the first clamping component 21 clamps the rubber hose assembly in the first lower slot 24. The side of the first clamping component 21 and the side of the fixing seat 22 will both block the clamping sleeve from passing through. Finally, use the first locking component 26 to fix the first clamping component 21 to prevent the rubber hose assembly from loosening.

[0048] The present invention provides a testing device for a mining high-pressure rubber hose assembly. In this embodiment, the first clamping component 21 includes a vertical plate 217 fixedly installed on the side of the first mounting plate 23. A mounting block 215 is installed on the vertical plate 217. A rotating rod 211 is rotatably installed on the mounting block 215. A fixing plate 212 is installed at the bottom of the rotating rod 211. An upper slot 214 adapted to the rubber hose assembly is opened at the bottom of the fixing plate 212. A limiting plate 219 that cooperates with the first locking component 26 is connected to the end of the rotating rod 211.

[0049] Specifically, the rubber hose assembly is placed inside the first lower slot 24, and then the rotating rod 211 is rotated, causing the rotating rod 211 to drive the fixing plate 212 to lock the rubber hose assembly. The upper slot 214 and the first lower slot 24 form a complete limiting hole. The diameter of the limiting hole is matched with the hose diameter of the rubber hose assembly, so that the clamping sleeve cannot pass through the limiting hole. Thus, the clamping sleeve is blocked. Then, the limiting plate 219 is fixed by the first locking component 26, which can fix the rotating rod 211 and prevent the fixing plate 212 from loosening and causing the rubber hose assembly to detach from the first lower slot 24.

[0050] The present invention provides a testing device for a mining high-pressure rubber hose assembly. Due to the thin wall thickness of the crimping sleeve, in order to improve the installation accuracy between the fixing plate 212 and the fixing seat 22 and to ensure that the crimping sleeve can be blocked by the fixing plate 212 and the fixing seat 22, in this embodiment, a positioning pin 213 is fixedly connected to the bottom of the fixing plate 212, and a first positioning slot 221 is provided at the top of the fixing seat 22 at a relative position. When the fixing plate 212 jams the rubber hose assembly, the positioning pin 213 is inserted into the first positioning slot 221.

[0051] In order for the positioning pin 213 to be smoothly inserted into the first positioning slot 221, the mounting block 215 is slidably mounted on the upright plate 217, and a first compression spring 216 is connected between the mounting block 215 and the upright plate 217.

[0052] Specifically, when the fixing plate 212 is rotated above the rubber hose assembly, the positioning pin 213 is positioned directly above the first positioning slot 221. Then, the rotating rod 211 is pressed down to accurately insert the positioning pin 213 into the rotating rod 211, thereby increasing the precision of the limiting hole formed by the upper slot 214 and the first lower slot 24, which can better block the clamping sleeve. At the same time, the first compression spring 216 is compressed by the rotating rod 211. Then, the first locking component 26 is used to fix one end of the limiting plate 219, thus fixing the rotating rod 211. When disassembling the rubber hose assembly, the first locking component 26 is unlocked first. Under the elastic force of the first compression spring 216, the rotating rod 211 is lifted, causing the positioning pin 213 to disengage from the first positioning slot 221. Then, the rotating rod 211 is moved away, and the rubber hose assembly can be removed.

[0053] It is worth noting that when the friction between the positioning pin 213 and the first positioning slot 221 is large, and the rotating rod 211 cannot be smoothly lifted by the first compression spring 216, the operator can manually lift the rotating rod 211 and then turn the rotating rod 211 away.

[0054] This invention provides a testing device for high-pressure rubber hose assemblies used in mining. In this embodiment, the movable end clamping assembly 3 includes a second mounting plate 32 fixedly mounted on a mounting base 5. A slider 33 is slidably mounted on the second mounting plate 32. A movable retainer 34 is fixedly mounted on the top of the slider 33. A second lower retaining groove 35 adapted to the rubber hose assembly is opened on the top of the movable retainer 34. A second clamping assembly 31 is mounted on the side of the second mounting plate 32 opposite to the fixed end clamping assembly 2. The second clamping assembly 31 is used to clamp one end of the rubber hose assembly inside the second lower retaining groove 35 and to block the clamping sleeve of the rubber hose assembly. A second limiting guide plate 37 is fixedly mounted on the side of the second mounting plate 32. A limiting channel is formed between the second limiting guide plate 37 and the second mounting plate 32. A second locking assembly 36 is mounted on the side of the second limiting guide plate 37. The second locking assembly 36 is used to lock the second clamping assembly 31 to prevent the rubber hose assembly from coming out of the second lower retaining groove 35 due to the second clamping assembly 31 loosening.

[0055] Specifically, the diameter of the second lower groove 35 is the same as the diameter of the hose of the rubber hose assembly, or the diameter of the second lower groove 35 is 0.1~0.3mm larger than the diameter of the hose of the rubber hose assembly. The axis of the second lower groove 35 coincides with the axis of the first lower groove 24, so that the tensile force on both ends of the rubber hose assembly is along its axial direction.

[0056] To prevent the slider 33 from slipping off the second mounting plate 32, baffles are provided at both ends of the slider 33, and the length of the slider 33 is greater than the thickness of the second mounting plate 32. The output end of the tensioning mechanism 4 is connected to the side of the slider 33.

[0057] In use, first insert one end of the rubber hose assembly into the second lower slot 35, then tighten the rubber hose assembly so that the clamping sleeve of the rubber hose assembly abuts against the side of the movable seat 34. Then fasten the second clamping component 31 so that the second clamping component 31 clamps the rubber hose assembly in the second lower slot 35. The side of the second clamping component 31 and the side of the movable seat 34 will both block the clamping sleeve from passing through. Finally, use the second locking component 36 to fix the second clamping component 31 to prevent the rubber hose assembly from loosening.

[0058] The present invention provides a testing device for a mining high-pressure rubber hose assembly. In this embodiment, the second clamping component 31 includes a first clamping component 21 and a slide rail 311. The slide rail 311 is fixedly installed on the side of the rotating rod 211. Unlike the structure of the first clamping component 21, the fixed clamping plate 212 is slidably installed on the slide rail 311 and is referred to as the movable clamping plate 312.

[0059] Specifically, the top of the active card holder 34 is also provided with a second positioning slot 341 that is compatible with the positioning post 213.

[0060] The usage steps of the second clamping component 31 are the same as those of the first clamping component 21. However, unlike the first clamping component 21, when the tensioning mechanism 4 pulls the movable card seat 34 to move, the movable card seat 34 drives the movable card plate 312 to move together through the positioning pin 213, so that the second clamping component 31 and the movable card seat 34 cooperate to keep the rubber hose assembly locked, preventing the clamping sleeve of the rubber hose assembly from coming out of the second lower slot 35.

[0061] This invention provides a testing device for mining high-pressure rubber hose assemblies. In this embodiment, the structures of the first locking component 26 and the second locking component 36 are identical. The second locking component 36 includes a mounting box 366 fixedly installed on the side of a second limiting guide plate 37. A push plate 362 is slidably installed inside the mounting box 366. A second compression spring 365 connects the bottom of the push plate 362 and the mounting box 366. A locking insert 363 is slidably installed on the side of the mounting box 366. The side of the push plate 362 has an opening... A locking slot 369 is adapted to the locking plug 363. One end of the locking plug 363 can be inserted into the locking slot 369 to lock the push plate 362. A locking strip 361 is fixedly connected to the side of the locking plug 363 near the limiting plate 219. The push plate 362 has an active hole 364 for the locking strip 361 to move. The side of the limiting plate 219 has a limiting groove 218 adapted to the locking strip 361. One end of the locking strip 361 can pass through the second limiting guide plate 37 and be inserted into the limiting groove 218.

[0062] To facilitate the insertion and removal of the locking plug 363, a push-pull rod 368 is connected to the side of the locking plug 363.

[0063] Specifically, such as Figure 7 and Figure 10 As shown, during use, when the second clamping assembly 31 is rotated above the rubber hose assembly, the second clamping assembly 31 is in a horizontal state. At this time, the top of the push plate 362 contacts the bottom of the limiting plate 219. Then, the rotating rod 211 is pressed down, and the rotating rod 211 drives the limiting plate 219 to descend. The limiting plate 219 drives the push plate 362 to descend. When the positioning pin 213 is inserted into the second positioning slot 341, the push-pull rod 368 is pushed inward. The push-pull rod 368 drives the locking block 363 and the locking strip 361 to move. The locking block 363 is inserted into the locking slot 369. At the same time, the locking strip 361 is inserted into the limiting groove 218, thereby fixing the limiting plate 219 and the rotating rod 211.

[0064] When disassembling the rubber hose assembly, pull the push rod 368 outward. The push rod 368 drives the locking plug 363 and locking strip 361 to move outward, thereby releasing the fixation of the limiting plate 219. Under the elastic force of the second compression spring 365, the push plate 362 lifts the limiting plate 219 and the rotating rod 211. Finally, rotate the rotating rod 211 to release the clamping of the rubber hose assembly. Similarly, if it is found that the second compression spring 365 is insufficient to lift the rotating rod 211, the rotating rod 211 can be lifted manually.

[0065] The present invention provides a testing device for a mining high-pressure rubber hose assembly. In this embodiment, the tensioning mechanism 4 includes a pull plate 41 slidably mounted on a mounting base 5. A tension spring 44 is connected between the pull plate 41 and the slider 33. A first servo motor 43 is also mounted on the mounting base 5. The output shaft of the first servo motor 43 is fixedly connected to a first lead screw 45. One end of the first lead screw 45 is threadedly connected to the pull plate 41.

[0066] Specifically, after the rubber hose assembly is fixed, the first servo motor 43 is started. The first servo motor 43 drives the first lead screw 45 to rotate. The first lead screw 45 drives the pull plate 41 away from the second mounting plate 32. At the same time, the pull plate 41 stretches the slider 33 through the tension spring 44. The tension spring 44 pulls the slider 33 to move. The slider 33 can generate a tension force on the clamping sleeve of the rubber hose assembly through the movable bracket 34, thereby tightening the rubber hose assembly. When the elastic force of the tension spring 44 reaches the specified value (through... (The pressure is usually greater than the maximum working pressure of the rubber hose assembly). Pause the operation of the first servo motor 43 and keep the tension spring 44 for a period of time (usually 3 to 5 minutes). During this process, if the crimping sleeve is installed correctly, the crimping sleeve cannot be detached from the hose of the rubber hose assembly, and the rubber hose assembly remains unchanged. If the crimping sleeve is not installed correctly, the crimping sleeve will loosen, and the tension spring 44 will contract instantly. It will drive the crimping sleeve to detach from the hose through the movable retainer 34, which indicates that the crimping sleeve is not installed correctly.

[0067] To visually display the tension of the tension spring 44 on the clamping sleeve, a tension scale line 7 is provided on the mounting base 5. The value of the tension scale line 7 is marked according to the elastic force of the tension mechanism 4. When the pull plate 41 moves, the elastic force of the tension spring 44 can be calculated based on the distance and position of the pull plate 41. The elastic force of the tension spring 44 is the tension on the clamping sleeve. In addition, the tension of the tension spring 44 can be adjusted according to different rubber hose assemblies, so that the device can be used for the testing of different rubber hose assemblies.

[0068] The present invention provides a testing device for a mining high-pressure rubber hose assembly. At the moment the clamping sleeve disengages, the tension spring 44 applies a large elastic force to the clamping sleeve. Under inertia, the clamping sleeve and its connector will be ejected, potentially causing injury to workers. Therefore, in this embodiment, the tensioning mechanism 4 further includes a material discharge protection component 42. The material discharge protection component 42 includes a fixed guide plate 423 fixedly mounted on the pull plate 41. The end of the fixed guide plate 423 away from the second mounting plate 32 is a closed end, and a buffer pad 424 is provided on the inner wall of the closed end. An extension guide plate 422 is slidably mounted inside the fixed guide plate 423. A third compression spring 421 connects the extension guide plate 422 and the pull plate 41. Initially, the third compression spring 421 is in a compressed state, and the end of the extension guide plate 422 abuts against the side of the movable retainer 34. The extension guide plate 422 communicates with the second lower retainer 35.

[0069] Specifically, during the installation of the rubber hose assembly, the clamping sleeve of the rubber hose assembly is located inside the extension guide plate 422. When the first servo motor 43 drives the pull plate 41 to move, the pull plate 41 will drive the fixed guide plate 423 away from the movable bracket 34. Then, the third compression spring 421 will gradually release its elastic force, so that the end of the extension guide plate 422 always abuts against the movable bracket 34. When the clamping sleeve is released from the hose, the movable bracket 34 gives the clamping sleeve a large initial acceleration, causing the clamping sleeve and the connector to slide along the extension guide plate 422. Finally, the clamping sleeve and the connector will hit the end of the fixed guide plate 423. The buffer pad 424 will cushion the clamping sleeve and the connector, preventing damage to the clamping sleeve and the connector, and also preventing them from being ejected and injuring the staff.

[0070] The present invention provides a testing device for mining high-pressure rubber hose assemblies. When it is necessary to test rubber hose assemblies of the same model but different lengths, in this embodiment, the mounting base 5 is slidably mounted on the testing table 1. The testing table 1 is also equipped with an adjustment mechanism 6. The adjustment mechanism 6 includes a second servo motor 62, which is mounted on the testing table 1. The output shaft of the second servo motor 62 is fixedly connected to a second lead screw 61, and one end of the second lead screw 61 is threadedly connected to the mounting base 5.

[0071] When testing rubber hose assemblies of the same model but different lengths, the rubber hose assembly is first fixed between the fixed end clamping component 2 and the movable end clamping component 3. Then, the second servo motor 62 is started. The second servo motor 62 drives the mounting base 5 to move through the second lead screw 61. The mounting base 5 drives the movable end clamping component 3 to move, so that the movable end clamping component 3 tightens the rubber hose assembly. Then, the first servo motor 43 is started to test the rubber hose assembly. This allows the device to test rubber hose assemblies of the same model but different lengths.

[0072] In this invention, multiple fixed brackets 22 and movable brackets 34 can be provided, so that multiple rubber hose assemblies of the same length can be tested simultaneously. After holding the tension for a period of time, the crimping sleeve of the unqualified rubber hose assembly will fall off, while the crimping sleeve of the qualified rubber hose assembly will remain unchanged. This allows for instant differentiation between the good and bad rubber hose assemblies, greatly improving the testing efficiency and accuracy.

[0073] Working principle:

[0074] Place one end of the rubber hose assembly into the first lower slot 24, then fasten the first clamping component 21 and lock it using the first locking component 26. Next, place the other end of the rubber hose assembly into the second lower slot 35, fasten the second clamping component 31, and lock it using the second locking component 36. Then, start the second servo motor 62. The second servo motor 62 drives the mounting base 5 to move via the second lead screw 61, causing the mounting base 5 to move the movable end clamping component 3, thereby tightening the rubber hose assembly. Then, start the first servo motor 43, which drives the first lead screw 45 to rotate. The pull plate 41 is moved, and the pull plate 41 stretches all the movable brackets 34 with elastic force through the tension spring 44. When the elastic force of the tension spring 44 reaches the specified value, the movement of the pull plate 41 is stopped and pressure is maintained for a period of time. During this time, the crimping sleeves and connectors of the unqualified rubber hose assemblies will fall off and slide into the fixed guide plate 423. After the inspection is completed, the pull plate 41 is returned to its original position, the mounting base 5 is returned to its original position, the second clamping assembly 31 and the first clamping assembly 21 are opened, and all the rubber hose assemblies can be taken out. The qualified products are collected and stored, and the unqualified rubber hoses, fallen crimping sleeves and connectors are collected and reinstalled.

[0075] Using this device, all rubber hose assemblies can be quickly inspected, greatly improving the accuracy of the inspection and preventing injuries to mine workers caused by substandard rubber hose assemblies.

[0076] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0077] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A testing device for mining high-pressure rubber hose assemblies, comprising a testing platform, characterized in that, A fixed-end clamping assembly is installed at one end of the top of the testing station. The fixed-end clamping assembly is used to clamp one end of the rubber hose assembly and to block the crimping sleeve at one end of the rubber hose assembly. A mounting base is installed at the other end of the top of the testing station. A movable end clamping assembly is installed on the mounting base. The movable end clamping assembly is used to clamp the other end of the rubber hose assembly and to block the crimping sleeve at the other end of the rubber hose assembly. The mounting base is also equipped with a tensioning mechanism. The output end of the tensioning mechanism is connected to the output end of the movable end clamping assembly. The tensioning mechanism is used to elastically stretch the crimping sleeve of the rubber hose assembly through the output end of the movable end clamping assembly.

2. The testing equipment for mining high-pressure rubber hose assemblies according to claim 1, characterized in that, The fixed end clamping assembly includes a first mounting plate fixedly installed on the testing table. A fixed bracket is fixedly installed on the first mounting plate. The top of the fixed bracket is provided with a first lower slot adapted to the rubber hose assembly. A first clamping assembly is installed on the side of the first mounting plate. The first clamping assembly is used to clamp one end of the rubber hose assembly inside the first lower slot and to block the clamping sleeve of the rubber hose assembly. A first limiting guide plate is installed on the side of the first mounting plate, and a limiting channel is formed between the first limiting guide plate and the first mounting plate. A first locking component is installed on the side of the first limiting guide plate, and the first locking component is used to lock the first clamping component.

3. The testing equipment for mining high-pressure rubber hose assemblies according to claim 2, characterized in that, The first clamping assembly includes a vertical plate fixedly installed on the side of the first mounting plate, an mounting block installed on the vertical plate, a rotating rod rotatably installed on the mounting block, a fixing plate installed at the bottom of the rotating rod, an upper slot adapted to the rubber hose assembly at the bottom of the fixing plate, and a limiting plate that cooperates with the first locking assembly connected to the end of the rotating rod.

4. The testing equipment for mining high-pressure rubber hose assemblies according to claim 3, characterized in that, The bottom of the fixed plate is fixedly connected to a positioning pin, and the top of the fixed base is provided with a first positioning slot at a relatively opposite position. The mounting block is slidably mounted on the upright plate, and a first compression spring is connected between the mounting block and the upright plate.

5. The testing equipment for mining high-pressure rubber hose assemblies according to claim 4, characterized in that, The movable end clamping assembly includes a second mounting plate fixedly mounted on a mounting base. A slider is slidably mounted on the second mounting plate. A movable retainer is fixedly mounted on the top of the slider. A second lower retainer groove adapted to the rubber hose assembly is opened on the top of the movable retainer. A second clamping assembly is mounted on the side of the second mounting plate. The second clamping assembly is used to clamp one end of the rubber hose assembly inside the second lower retainer groove and to block the clamping sleeve of the rubber hose assembly. A second limiting guide plate is fixedly installed on the side of the second mounting plate, and a limiting channel is formed between the second limiting guide plate and the second mounting plate. A second locking component is installed on the side of the second limiting guide plate, and the second locking component is used to lock the second clamping component.

6. The testing equipment for mining high-pressure rubber hose assemblies according to claim 5, characterized in that, The second clamping assembly includes the first clamping assembly and also includes a slide rail. The slide rail is fixedly installed on the side of the rotating rod. Unlike the structure of the first clamping assembly, the fixed clamping plate is slidably installed on the slide rail.

7. The testing equipment for mining high-pressure rubber hose assemblies according to claim 5, characterized in that, The first locking component has the same structure as the second locking component. The second locking component includes a mounting box fixedly installed on the side of the second limiting guide plate. A push plate is slidably installed inside the mounting box. A second compression spring is connected between the bottom of the push plate and the mounting box. A locking block is slidably installed on the side of the mounting box. A locking slot adapted to the locking block is opened on the side of the push plate. A locking strip is fixedly connected to the side of the locking block near the limiting plate. An active hole for the locking strip to move is opened on the push plate. A limiting groove adapted to the locking strip is opened on the side of the limiting plate. A push-pull rod is connected to the side of the locking block.

8. The testing equipment for mining high-pressure rubber hose assemblies according to claim 5, characterized in that, The tensioning mechanism includes a pull plate slidably mounted on a mounting base, a tension spring connecting the pull plate and the slider, a first servo motor mounted on the mounting base, a first lead screw fixedly connected to the output shaft of the first servo motor, and one end of the first lead screw threadedly connected to the pull plate.

9. The testing equipment for mining high-pressure rubber hose assemblies according to claim 8, characterized in that, The stretching mechanism also includes a feeding protection component, which includes a fixed guide plate fixedly installed on the pull plate. The end of the fixed guide plate away from the second mounting plate is a closed end. A buffer pad is provided on the inner side wall of the closed end. An extension guide plate is slidably installed inside the fixed guide plate. A third compression spring is connected between the extension guide plate and the pull plate. Initially, the third compression spring is in a compressed state, and the end of the extension guide plate abuts against the side of the movable card seat. The extension guide plate communicates with the second lower card slot.

10. The testing equipment for mining high-pressure rubber hose assemblies according to claim 1, characterized in that, The mounting base is slidably mounted on the testing table, and an adjustment mechanism is also installed on the testing table. The adjustment mechanism includes a second servo motor, which is mounted on the testing table. The output shaft of the second servo motor is fixedly connected to a second lead screw, and one end of the second lead screw is threadedly connected to the mounting base.

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