Test bench for monitoring the operating state of a cabling mechanism and its operating method

Abstract

The present invention relates to a test bench for monitoring the operating state of a cabling mechanism and an operating method thereof. The test bench of the present invention includes a hydraulic support, a hydraulic support attitude control device, a rear scraper conveyor, a rear scraper conveyor attitude control device, a floor simulation device, a host computer, and a controller. The hydraulic support is arranged on the hydraulic support attitude control device, the rear scraper conveyor is arranged on the rear scraper conveyor attitude control device, the hydraulic support attitude control device and the rear scraper conveyor attitude control device are arranged on the floor simulation device, and the hydraulic support, the hydraulic support attitude control device, the rear scraper conveyor attitude control device, and the floor simulation device are respectively connected to the host computer by the controller. The data obtained by the simulation of the monitoring test bench proposed in the present invention has a reference significance for intelligent cabling in actual sub-level caving mining, can maximize the recovery rate of outcrop coal regardless of the working conditions of sub-level caving mining, and has high economic value and practical significance for the recovery of outcrop coal.

Description

Technical Field

[0001] The present invention relates to a test bench for monitoring the operating state of a caving mechanism and an operating method thereof, belonging to the technical field of sub-level caving support simulation experimental equipment.

Background Art

[0002] Sub-level caving support has evolved from a low-position skylight type single conveyor through a middle-position skylight type double conveyor to the currently mainly used low-position sub-level caving support. The main equipment of the low-position sub-level caving mining technology consists of a position sub-level caving support and a double conveyor. In the low-position sub-level caving support, during caving, the rear canopy swings downward, the caving opening opens, and the outcrop coal falls through the caving opening onto the rear scraper conveyor. However, during caving, the positions of the caving opening and the rear scraper conveyor are likely to shift, and the outcrop coal cannot fall completely into the rear scraper conveyor and scatters outside the conveyor, resulting in a decrease in the recovery rate of the outcrop coal. The underground environment and conditions are complex, the research cost is high, it is also difficult to change the hydraulic support model, and it is impossible to investigate the operating state of the caving mechanism under different working conditions with hydraulic supports of different models and structures. Also, it is impossible to investigate the operating state of the caving mechanism when the hydraulic support is in an unreasonable posture.

[0003] As a result of the search, Patent Document 1 discloses a similar simulation test bench for a coal mining face suitable for hydraulic supports of various models. This test bench includes a bed plate, and the bed plate includes ladders and stabilizing blocks. Grooves are formed in the upper part of the ladders, and a rotating device is rotatably connected to both the upper parts of the ladders and the stabilizing blocks. A hydraulic loading device is movably connected to the upper part of the rotating device. The rotating device includes a rotatable connection holder, and a support jack is rotatably connected to the upper part of the rotatable connection holder. The upper part of the support jack is rotatably connected to the surface of the hydraulic loading device via a rotatable connection holder. This relates to the technical field of coal mines. By changing the hinge positions of two each of the top plate, bottom plate, shield plate, hydraulic movable column, and links of a multi-functional hydraulic support, hydraulic supports of various models can be simulated, thereby greatly improving the load capacity and data accuracy, and realizing three-dimensional simulation experiments of hydraulic supports of various models and various mining environments on the same experimental platform.

[0004] Patent Document 2 discloses an experimental device based on the dynamic simulation of coal mining face support and support movement. This experimental device includes an angle-adjustable bedplate, a load test bench, a model variable hydraulic support, a rock test piece, a slide bedplate, a signal collection system, and a signal processing system. Among them, the angle-adjustable bedplate includes a bottom plate, a pressure-resistant plate, and front and rear links of the bedplate that are hinged to each other. The load test bench is arranged on the angle-adjustable bedplate, and the model variable hydraulic support is arranged under the load pad and on the slidable bedplate. The rock test piece is arranged above the upper beam of the support and under the bedplate of the support. The slidable bedplate is arranged on the pressure-resistant plate of the angle-adjustable bedplate and under the rock test piece at the bottom. The signal collection system includes a crack signal sensor, a crack signal amplifier, a pressure collector, and a pressure sensor. The signal processing system includes a pressure oscilloscope and a waveform analyzer. The present invention can realize the simulation research on the combined action of various mining conditions.

[0005] However, many of the known published patent documents are about the operating state of the hydraulic support itself, dynamic simulation experiments related to support and support movement, and monitoring tests related to the operating state of the caving mechanism. That is, currently, there is no test system for monitoring the operating state of the entire caving mechanism and the rear scraper conveyor.

Prior Art Documents

Patent Documents

[0006]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0007] In view of the drawbacks of the prior art, the present invention provides a test bench for monitoring the operating state of a cabling mechanism for sub-level cabling support and simulating and monitoring the operating state of a rear scraper conveyor. The present invention also provides an operating method for a test bench for monitoring the operating state of a cabling mechanism.

Means for Solving the Problems

[0008] The technical solution of the present invention is as follows.

[0009] A test bench for monitoring the operating state of a cabling mechanism, including a hydraulic support, a hydraulic support attitude control device, a rear scraper conveyor, a rear scraper conveyor attitude control device, a bottom plate simulation device, a host computer, and a controller, The hydraulic support is arranged on the hydraulic support attitude control device, the rear scraper conveyor is arranged on the rear scraper conveyor attitude control device, and the hydraulic support attitude control device and the rear scraper conveyor attitude control device are arranged on the bottom plate simulation device, The hydraulic support, the hydraulic support attitude control device, the rear scraper conveyor attitude control device, and the bottom plate simulation device are respectively connected to the host computer by the controller.

[0010] Preferably, both the hydraulic support attitude control device and the rear scraper conveyor attitude control device include an upper top plate, a lower bottom plate, and six jacks. The upper and lower ends of the six jacks are respectively connected to the upper top plate and the lower bottom plate, and the six jacks are connected to the host computer by the controller.

[0011] Preferably, the bottom plate simulation device includes four upper top plates, a lower bottom plate, and jacks. Each upper top plate is connected to the lower bottom plate by four jacks, and the jacks are connected to the host computer by the controller.

[0012] Preferably, the lower bottom plate of the hydraulic support posture control device is connected to the four upper top plates of the bottom plate simulation device by bolts.

[0013] Preferably, the lower bottom plate of the rear scraper conveyor posture control device is connected to the two upper top plates of the bottom plate simulation device by bolts.

[0014] Preferably, the hydraulic support includes a roof canopy, a cab shield, a rear canopy, a bed plate, a hydraulic pillar, a front link, and a rear link. The roof canopy, the cab shield, and the rear canopy are sequentially connected. The bed plate is provided with a first limiting guide rail, a second limiting guide rail, a rear link movable bed plate, a front link fixed bed plate, a rear row socket fixed bed plate, and a front row socket movable bed plate. A rear link variable holder is hingedly connected to the rear link, and the bottom end of the rear link variable holder is connected to the rear link movable bed plate. The rear link movable bed plate is provided within the first limiting guide rail. A front link variable holder is hingedly connected to the front link, and the bottom end of the front link variable holder is connected to the front link fixed bed plate. The front link fixed bed plate and the rear link movable bed plate are connected by a first push jack. The bottom ends of the hydraulic pillars are respectively connected to the rear row socket fixed bed plate and the front row socket movable bed plate. The rear row socket fixed bed plate and the front row socket movable bed plate are connected by a second push jack. The front row socket movable bed plate is provided within the second limiting guide rail. The first push jack and the second push jack are connected to the host computer by a controller.

[0015] Preferably, the rear link includes a sleeve, a lead screw, a clutch, and a first lead screw motor. The first lead screw motor is connected to the lead screw by the clutch. The lead screw is screwed into the sleeve. The sleeve is hingedly connected to the cabinet shield. The first lead screw motor and the clutch are connected to the host computer by the controller.

[0016] Preferably, the front link includes a sleeve, a lead screw, a clutch, and a second lead screw motor. The second lead screw motor is connected to the lead screw by the clutch. The lead screw is screwed into the sleeve. The sleeve is hingedly connected to the cabinet shield. The second lead screw motor and the clutch are connected to the host computer by the controller.

[0017] Preferably, the first lead screw motor and the second lead screw motor use stepping motors.

[0018] Preferably, the bed plate is connected to the upper top plate of the hydraulic support attitude control device by bolts.

[0019] Preferably, the rear scraper conveyor is connected to the upper top plate of the rear scraper conveyor attitude control device by bolts.

[0020] Preferably, the cabinet shield includes a main body. The main body is provided with a rear link fixed hinge connection holder, a front link movable hinge connection holder, a third push jack, and a third limiting guide rail. The rear link fixed hinge connection holder is hingedly connected to the sleeve of the rear link. The front link movable hinge connection holder is hingedly connected to the sleeve of the front link. The front link movable hinge connection holder is provided in the third limiting guide rail. The rear link fixed hinge connection holder and the front link movable hinge connection holder are connected by the third push jack. The third push jack is connected to the host computer by the controller.

[0021] Preferably, the monitoring test bench further includes a visual monitoring device, which includes a camera, an image processing module, and a data transmission module. The camera is fixedly connected to a three-direction pan-tilt head, and the three-direction pan-tilt head is connected to the rear canopy. The camera is connected to a host computer by the image processing module and the data transmission module. With such a design, the camera collects the accumulation status of the outcrop coal that has fallen from the caving mechanism onto the rear scraper conveyor, and the image processing module performs basic processing such as sharpening and image segmentation on the collected image, and then transmits the data to the host computer. Through further processing by the host computer, the accumulation status of the outcrop coal on the rear scraper conveyor is obtained, and it is determined whether the outcrop coal has spilled outside the rear scraper conveyor and whether the rear conveyor is overloaded, unloaded, or lightly loaded.

[0022] A method for operating a test bench for monitoring the operating state of a caving mechanism, comprising: Sending commands from a host computer to a controller, and controlling the hydraulic pillar, the first lead screw motor, the second lead screw motor, the clutch, the first push jack, the second push jack, and the jacks of each attitude control device by the controller to perform operations, thereby changing the structural parameters of the hydraulic support to simulate supports of various models, changing the attitude of the hydraulic support to simulate various working conditions of the support, changing the attitude of the rear scraper conveyor to simulate various working conditions of the conveyor, and changing the attitudes of the upper top plates of the floor simulation device to simulate the influence of various working conditions of the support chassis on the operating state of the caving mechanism and the caving of the outcrop coal;

[0023] Monitoring the operating state of the caving mechanism under each working condition and the situation of the outcrop coal falling onto the rear scraper conveyor by the visual monitoring device to obtain the results of the influence of each structural parameter or working condition on the operating state of the caving mechanism.

Advantages of the Invention

[0024] The technical features and beneficial effects of the present invention are as follows.

[0025] 1. In the present invention, for the first time, a test bench is proposed to monitor the operating states of the caving mechanism and the rear scraper conveyor and the caving situation of the outcrop coal. This test bench is a test bench with adjustable working conditions that can simulate various support models, various caving heights, various postures of the support, various pitch angles of the caving mechanism, various operating postures of the rear scraper conveyor, and various positions of the rear scraper conveyor.

[0026] 2. The data obtained by the simulation of the monitoring test bench proposed in the present invention has a reference significance for intelligent caving in actual sub-level caving mining. Regardless of the working conditions of sub-level caving mining, the recovery rate of outcrop coal can be maximized, and it has high economic value and practical significance for the recovery of outcrop coal.

Brief Description of the Drawings

[0027]

Figure 1

Figure 2

Figure 3

Figure 4

Modes for Carrying Out the Invention

[0028] Hereinafter, the present invention will be further described with reference to the drawings by way of examples, but it is not limited thereto. Example 1

[0029] As shown in FIGS. 1 to 4, this embodiment provides a test bench for monitoring the operating state of a cabling mechanism, including a hydraulic support, a hydraulic support attitude control device 8, a rear scraper conveyor 4, a rear scraper conveyor attitude control device 5, a bottom plate simulation device 6, a host computer, and a controller. The hydraulic support is arranged on the hydraulic support attitude control device 8, the rear scraper conveyor 4 is arranged on the rear scraper conveyor attitude control device 5, and the hydraulic support attitude control device 8 and the rear scraper conveyor attitude control device 5 are arranged on the bottom plate simulation device 6. The hydraulic support, the hydraulic support attitude control device 8, the rear scraper conveyor attitude control device 5, and the bottom plate simulation device 6 are respectively connected to the host computer by the controller.

[0030] Specifically, the hydraulic support attitude control device 8 and the rear scraper conveyor attitude control device 5 have the same structure and both include an upper top plate, a lower bottom plate, and six jacks. The upper top plate and the lower bottom plate are welded to the upper and lower ends of the six jacks respectively. The six jacks are connected to the host computer by the controller. The six jacks receive control signals from the host computer and are controlled to expand and contract, thereby simulating various attitudes such as pitching, tilting, and horizontal of the bed plate 9 of the hydraulic support, further examining the influence of various attitudes of the hydraulic support on the operating state of the cabling mechanism, and accurately simulating various degrees of inclination and quantitatively analyzing by adjusting the expansion and contraction length of the jacks by a predetermined amount.

[0031] The floor simulation device 6 includes four upper top plates, a lower bottom plate, and jacks. Each upper top plate is connected to the lower bottom plate by four jacks, and the jacks are connected to the host computer by a controller. The various inclination directions and inclination angles of the upper top plate can be controlled according to the telescopic changes of the four jacks. The lower bottom plate of the floor simulation device 6 is fixed to the ground by anchor bolts, and the jacks are respectively connected to the upper top plate and the lower bottom plate by welding. When the host computer sends an instruction to the controller, the controller controls the lifting of the corresponding jack according to the instruction, thereby changing the positional relationship such as the angle and distance between the floor simulation device and the four upper top plates and the lower bottom plate, simulating various inclination directions and magnitudes of inclination of the floor where the hydraulic support exists, and simulating the uneven working conditions of the floor where the support exists in the fully mechanized mining face, so as to study the influence of various working conditions of the floor on the operating state of the caving mechanism of the hydraulic support.

[0032] The lower bottom plate of the hydraulic support attitude control device 8 is connected to the four upper top plates of the floor simulation device 6 by bolts.

[0033] The lower bottom plate of the rear scraper conveyor attitude control device 5 is connected to the two upper top plates of the floor simulation device 6 by bolts.

[0034] The hydraulic support includes a roof canopy 1, a cab shield 2, a rear canopy 3, a bed plate 9, four hydraulic pillars 12, a front link 11, and a rear link 10. The roof canopy 1, the cab shield 2, and the rear canopy 3 are sequentially connected. On the bed plate 9, a first limit guide rail 13, a second limit guide rail 22, a rear link movable bed plate 15, a front link fixed bed plate 17, a rear row socket fixed bed plate 19, and a front row socket movable bed plate 21 are provided. A rear link variable holder 14 is hingedly connected to the rear link 10, and the bottom end of the rear link variable holder 14 is connected to the rear link movable bed plate 15. The rear link movable bed plate 15 is slidably mounted within the first limit guide rail 13. A front link variable holder 18 is hingedly connected to the front link 11, and the bottom end of the front link variable holder 18 is connected to the front link fixed bed plate 17. The front link fixed bed plate 17 and the rear link movable bed plate 15 are connected by a first push jack 16. The four hydraulic pillars 12 are provided in parallel on both sides respectively. At the bottom ends of the two hydraulic pillars on the same side, the rear row socket fixed bed plate 19 and the front row socket movable bed plate 21 are connected front and back respectively. The rear row socket fixed bed plate 19 and the front row socket movable bed plate 21 are connected by a second push jack 20. The front row socket movable bed plate 21 is slidably mounted within the second limit guide rail 22. The first push jack 16 and the second push jack 20 are connected to the host computer by a controller.

[0035] The front link fixed bed plate 17 is fixed on the bed plate 9 by welding. Both ends of the first push jack 16 are fixed on the front link fixed bed plate 17 and the rear link movable bed plate 15 by welding respectively. The rear link movable bed plate 15 is movable within the first limit guide rail 13 according to the expansion and contraction of the first push jack 16. Thereby, the horizontal distance between the hinge connection points of the front link 11, the rear link 10, and the bed plate 9 changes. The first limit guide rail 13 is fixed on the bed plate 9 by welding. The front link 11 and the rear link 10 are respectively hinged to the front link variable holder 18 and the rear link variable holder 14. The front link variable holder 18 and the rear link variable holder 14 are composed of jacks and expand and contract by air supply from an air pump. Due to the expansion and contraction of the jacks, the vertical height of the hinge connection points of the front link 11, the rear link 10, and the bed plate 9 changes. According to the changes in the horizontal and vertical distances of the hinge connection points of the front link 11, the rear link 10, and the bed plate 9, the structural parameters of the hydraulic support also change, and the simulation of the diversity of the hydraulic support structure is realized.

[0036] The rear row socket fixed bed plate 19 is fixed on the bed plate 9 by welding. Both ends of the second push jack 20 are fixed on the rear row socket fixed bed plate 19 and the front row socket movable bed plate 21 by welding respectively. The front row socket movable bed plate 21 moves on the second limit guide rail 22 according to the expansion and contraction of the second push jack 20. Thereby, the distance between the front row pillar socket and the rear row pillar socket can be changed, and various operating postures of the hydraulic support can be simulated. The second limit guide rail 22 is fixed on the bed plate 9 by welding. Thereby, when the hydraulic support is in various postures such as forward tilt, backward tilt, and left - right tilt, the operating state of the hydraulic support cabling mechanism and the situation where the outcrop coal falls onto the rear scraper conveyor 4 can be considered.

[0037] The rear link 10 includes a sleeve, a parent screw, a clutch, and a first parent screw motor 28. The first parent screw motor 28 is connected to the parent screw by the clutch. The parent screw is screwed into the sleeve. The sleeve is hingedly connected to the cabling shield. The first parent screw motor 28 and the clutch are connected to the host computer by the controller.

[0038] The front link 11 includes a sleeve, a parent screw, a clutch, and a second parent screw motor 23. The second parent screw motor 23 is connected to the parent screw by the clutch. The parent screw is screwed into the sleeve. The sleeve is hingedly connected to the cabling shield. The second parent screw motor 23 and the clutch are connected to the host computer by the controller.

[0039] In this embodiment, both the first parent screw motor 28 and the second parent screw motor 23 employ stepping motors. When the clutch is in the open state, the parent screw and the sleeve move relatively and expand and contract in response to the clockwise and counterclockwise rotations of the stepping motor, thereby achieving the purpose of changing the length of the front link or the rear link structure of the hydraulic support. The length of the front link or the rear link is changed according to the rotation direction and the number of rotations of the stepping motor. At this time, the length of the front link or the rear link does not change according to the change in the length of other link members such as the four-bar link, but only changes according to the number of rotations of the stepping motor. At this time, it is possible to simulate the influence on the operating state of the hydraulic support cabling mechanism when the length of the four-bar link changes and the angle between the four-bar links changes according to the change in length.

[0040] When the clutch is in the closed state, the length of the front link or the rear link does not change according to the number of rotations of the stepping motor. At this time, the front link or the rear link changes according to the change in the length of other link members with a length of four-bar link and is in an interlocking state. At this time, it is possible to simulate the influence on the operating state of the hydraulic support cabling mechanism when the length of the four-bar link changes but the angle between the four-bar links does not change.

[0041] When the stepping motor controller receives an instruction from the host computer, the controller controls the opening and closing of the clutch according to the instruction, and controls the rotation direction and rotation speed of the stepping motor. Thereby, the lead screw sleeve is controlled to expand and contract by a predetermined length, thereby changing the lengths of the front link and the rear link, and further simulating the support of various structural parameters, expanding the application range of the test bench, and improving the reliability of the test data.

[0042] The bed plate 9 is connected to the upper top plate of the hydraulic support attitude control device 8 by bolts. The rear scraper conveyor 4 is connected to the upper top plate of the rear scraper conveyor attitude control device 5 by bolts.

[0043] The cabling shield 2 includes a main body, and the main body is provided with a rear link fixed hinge connection holder 24, a front link movable hinge connection holder 26, a third push jack 25, and a third limit guide rail 27. The rear link fixed hinge connection holder 24 is hinge-connected to the sleeve of the rear link 10, the front link movable hinge connection holder 26 is hinge-connected to the sleeve of the front link 11, the front link movable hinge connection holder 26 is slidably mounted in the third limit guide rail 27, and the rear link fixed hinge connection holder 24 and the front link movable hinge connection holder 26 are connected by the third push jack 25. The third push jack 25 is connected to the host computer by a controller.

[0044] The rear link fixed hinge connecting holder 24 is fixed onto the caving shield body by welding, connected to the rear link 10 by a hinge. Both ends of the third push jack 25 are respectively fixed onto the rear link fixed hinge connecting holder 24 and the front link movable hinge connecting holder 26 by welding. According to the telescoping of the third push jack 25, the front link movable hinge connecting holder 26 moves on the third limiting guide rail 27, thereby changing the structure of the hydraulic support four-bar linkage. The third limiting guide rail 27 is fixed onto the caving shield body by welding. Embodiment 2

[0045] The test bench for monitoring the operating state of the caving mechanism has the same structure as that of Embodiment 1 except for the following points. The monitoring test bench further includes a visual monitoring device 7. The visual monitoring device 7 includes a camera, an image processing module, and a data transmission module. The camera is fixedly connected to a three-directional turntable. The three-directional turntable is connected to the rear canopy 3. The camera is connected to the host computer by the image processing module and the data transmission module.

[0046] The visual monitoring device 7 uses the camera to collect the accumulation situation of the outcropping coal that has fallen from the caving mechanism onto the rear scraper conveyor. The image processing module performs basic processing such as sharpening and image segmentation on the collected images, and transmits the data to the host computer. The host computer performs further processing to grasp the accumulation situation of the outcropping coal on the rear scraper conveyor, and determines whether the outcropping coal has spilled outside the rear scraper conveyor and whether there is overload, no load, or light load on the rear scraper conveyor.

[0047] In the designed test bench, by changing the length of each link member of the four-bar link constituting the hydraulic support and the distance between the front row socket and the rear row socket, each structural parameter of the hydraulic support is changed. In this way, the host computer sends commands to the controller to change the hydraulic support structure parameters, and simulates the support functions of various models. The hydraulic support attitude control device changes the attitude of the hydraulic support to simulate various working conditions such as the front-back, left-right inclination, and pitching of the support, and can also quantitatively simulate the degree of various inclinations. The rear scraper conveyor attitude control device changes the attitude of the rear scraper conveyor to simulate various working conditions such as the inclination and tilting of the rear scraper conveyor, and can further examine the influence of the change in the relative position between the hydraulic support and the rear scraper conveyor on the operating state of the cabling mechanism and the situation where the outcrop coal falls on the rear scraper conveyor. The floor simulation device changes the telescopic size of various jacks of the device to simulate the influence of various inclination directions, degrees of inclination, and unevenness of the floor of the fully mechanized mining face underground on the operating state of the cabling mechanism of the hydraulic support and the influence on the cabling of the outcrop coal. The visual monitoring device can monitor the operating state of the cabling mechanism and the cabling of the outcrop coal and the situation of the rear scraper conveyor in real time. By the variable control method, various structural parameters of the hydraulic support are changed respectively to simulate variables such as various parameters of the floor, various parameters of the hydraulic support attitude control device, and various parameters of the rear scraper conveyor attitude control device. Next, by the visual monitoring device, monitor the operating state of the cabling mechanism under each working condition and the situation where the outcrop coal falls on the rear scraper conveyor, so as to obtain the influence results of each structural parameter or working condition on the operating state of the cabling mechanism. Example 3

[0048] The operation method of the test bench for monitoring the operating state of the cabling mechanism described in Example 2 specifically includes the following steps.

[0049] The host computer sends instructions to the controller, and the controller controls and operates the hydraulic pillar 12, the first master screw motor 28, the second master screw motor 23, the clutch, the first push jack 16, the second push jack 20, and the jacks of each attitude control device respectively, thereby changing the structural parameters of the hydraulic support to simulate the support of various models, changing the attitude of the hydraulic support to simulate various working conditions of the support, changing the attitude of the rear scraper conveyor to simulate various working conditions of the conveyor, and changing the attitudes of various upper plates of the bottom plate simulation device to simulate the influence of various working conditions of the support chassis on the operating state of the cabling mechanism and the cabling of the outcrop coal.

[0050] The visual monitoring device monitors the operating state of the cabling mechanism under each working condition and the situation where the outcrop coal falls onto the rear scraper conveyor, thereby obtaining the results of the influence of each structural parameter or working condition on the operating state of the cabling mechanism.

[0051] The above are only specific embodiments of the present invention, and the protection scope of the present invention is not limited thereto. Those skilled in the art can easily conceive of changes or alternatives within the technical scope disclosed by the present invention, which should be included within the protection scope of the present invention.

Explanation of Reference Numerals

[0052] 1 Roof Canopy 2 Cabling Shield 3 Rear Canopy 4 Rear Scraper Conveyor 5 Rear Scraper Conveyor Attitude Control Device 6 Bottom Plate Simulation Device 7 Visual Monitoring Device 8 Hydraulic Support Attitude Control Device 9 Bed Plate 10 Rear Link 11 Front Link 12 Hydraulic Pillar 13 First Limit Guide Rail 14 Rear Link Variable Holder 15 Rear Link Movable Bed Plate 16 First Push Jack 17 Front Link Fixed Bed Plate 18 Front Link Variable Holder 19 Rear Row Socket Fixed Bed Plate 20 Second Push Jack 21 Front Row Socket Movable Bed Plate 22 Second Limit Guide Rail 23 Second Lead Screw Motor 24 Rear Link Fixed Hinge Connecting Holder 25 Third Push Jack 26 Front Link Movable Hinge Connecting Holder 27 Third Limit Guide Rail 28 First Lead Screw Motor

Claims

1. A test bench for monitoring the operating state of a cabling mechanism, comprising: a hydraulic support, a hydraulic support attitude control device, a rear scraper conveyor, a rear scraper conveyor attitude control device, a bottom plate simulation device, a host computer, and a controller; the hydraulic support is arranged on the hydraulic support attitude control device, the rear scraper conveyor is arranged on the rear scraper conveyor attitude control device, and the hydraulic support attitude control device and the rear scraper conveyor attitude control device are arranged on the bottom plate simulation device; the hydraulic support, the hydraulic support attitude control device, the rear scraper conveyor attitude control device, and the bottom plate simulation device are each connected to the host computer by the controller, and a test bench for monitoring the operating state of the cabling mechanism is characterized in that.

2. Both the hydraulic support attitude control device and the rear scraper conveyor attitude control device include an upper top plate, a lower bottom plate, and six jacks. The upper and lower ends of the six jacks are respectively connected to the upper top plate and the lower bottom plate, and the six jacks are connected to the host computer by the controller. The test bench for monitoring the operating state of the cabling mechanism according to claim 1 is characterized in that.

3. The bottom plate simulation device includes four upper top plates, a lower bottom plate, and jacks. Each upper top plate is connected to the lower bottom plate by four jacks, and the jacks are connected to the host computer by the controller. The test bench for monitoring the operating state of the cabling mechanism according to claim 1 is characterized in that.

4. The hydraulic support includes a roof canopy, a cab shield, a rear canopy, a bed plate, a hydraulic pillar, a front link, and a rear link. The roof canopy, the cab shield, and the rear canopy are sequentially connected. The bed plate is provided with a first limiting guide rail, a second limiting guide rail, a rear link movable bed plate, a front link fixed bed plate, a rear row socket fixed bed plate, and a front row socket movable bed plate. A rear link variable holder is hingedly connected to the rear link, and the bottom end of the rear link variable holder is connected to the rear link movable bed plate. The rear link movable bed plate is provided within the first limiting guide rail. A front link variable holder is hingedly connected to the front link, and the bottom end of the front link variable holder is connected to the front link fixed bed plate. The front link fixed bed plate and the rear link movable bed plate are connected by a first push jack. The bottom ends of the hydraulic pillars are respectively connected to the rear row socket fixed bed plate and the front row socket movable bed plate. The rear row socket fixed bed plate and the front row socket movable bed plate are connected by a second push jack. The front row socket movable bed plate is provided within the second limiting guide rail. The first push jack and the second push jack are connected to a host computer by a controller. A test bench for monitoring the operating state of the cabling mechanism according to claim 1, characterized in that.

5. The rear link includes a sleeve, a lead screw, a clutch, and a first lead screw motor. The first lead screw motor is connected to the lead screw by a clutch. The lead screw is screwed into the sleeve. The sleeve is hingedly connected to the cab shield. The first lead screw motor and the clutch are connected to a host computer by a controller. A test bench for monitoring the operating state of the cabling mechanism according to claim 4, characterized in that.

6. The front link includes a sleeve, a parent screw, a clutch, and a second parent screw motor. The second parent screw motor is connected to the parent screw by the clutch. The parent screw is screwed into the sleeve. The sleeve is hinge-connected to the cabling shield. The second parent screw motor and the clutch are connected to the host computer by the controller. A test bench for monitoring the operating state of the cabling mechanism according to claim 5, characterized in that.

7. The rear scraper conveyor is connected to the upper top plate of the rear scraper conveyor attitude control device by bolts. A test bench for monitoring the operating state of the cabling mechanism according to claim 2, characterized in that.

8. The cabling shield includes a main body. The main body is provided with a rear link fixed hinge connection holder, a front link movable hinge connection holder, a third push jack, and a third limiting guide rail. The rear link fixed hinge connection holder is hinge-connected to the sleeve of the rear link. The front link movable hinge connection holder is hinge-connected to the sleeve of the front link. The front link movable hinge connection holder is provided in the third limiting guide rail. The rear link fixed hinge connection holder and the front link movable hinge connection holder are connected by the third push jack. The third push jack is connected to the host computer by the controller. A test bench for monitoring the operating state of the cabling mechanism according to claim 6, characterized in that.

9. Further includes a visual monitoring device. The visual monitoring device includes a camera, an image processing module, and a data transmission module. The camera is fixedly connected to a three-direction pan-tilt head. The three-direction pan-tilt head is connected to the rear canopy. The camera is connected to the host computer by the image processing module and the data transmission module. A test bench for monitoring the operating state of the cabling mechanism according to claim 4, characterized in that.

10. An operating method of a test bench for monitoring the operating state of the cabling mechanism according to any one of claims 1 to 9, comprising: The host computer sends commands to the controller, and the controller controls the hydraulic pillar, the first master screw motor, the second master screw motor, the clutch, the first push jack, the second push jack, and the jacks of each attitude control device to perform operations, thereby changing the structural parameters of the hydraulic support to simulate the support of various models, changing the attitude of the hydraulic support to simulate various working conditions of the support, changing the attitude of the rear scraper conveyor to simulate various working conditions of the conveyor, and changing the attitude of each upper top plate of the bottom plate simulation device to simulate the influence of various working conditions of the support chassis on the operating state of the cabling mechanism and the cabling of the outcrop coal. The step of obtaining the result of the influence of each structural parameter or working condition on the operating state of the cabling mechanism by monitoring the operating state of the cabling mechanism under each working condition and the situation where the outcrop coal falls onto the rear scraper conveyor by the visual monitoring device. A working method characterized by including this step.

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