Electro-hydraulic pipe folding and storing device for coal mine crossheading

Abstract

This invention provides a folding storage device for electro-hydraulic pipes in a coal mine roadway. The storage device includes: a cable car group comprising multiple cable cars and multiple electro-hydraulic pipes, the multiple cable cars being connected sequentially, at least one of the multiple cable cars including a first cable box and a second cable box, the first cable box and the second cable box being spaced apart and arranged at an angle, a driving unit being provided between the first cable box and the second cable box, one end of the driving unit being connected to the first cable box, and the other end of the driving unit being connected to the second cable box, controlling the driving unit to change the included angle between the first cable box and the second cable box, so that the first cable box and the second cable box have a storage position where they are close to each other and in a folded state, and a carrying position where the first cable box and the second cable box are in a preset state for carrying materials, the multiple electro-hydraulic pipes being retractably laid inside the first cable box and the second cable box, each electro-hydraulic pipe extending along the length direction of the cable car group.

Description

Technical Field

[0001] This invention relates to the field of coal mine equipment technology, and more specifically, to a folding storage device for an electro-hydraulic pipe in a coal mine roadway. Background Technology

[0002] Currently, there are two main types of electro-hydraulic pipeline storage equipment in the longwall roadway of a fully mechanized coal mine:

[0003] One method is the traditional monorail suspension storage, where the monorail track is pre-arranged in the roadway, the electro-hydraulic pipe is hung on the monorail, and the monorail is pushed forward and retracted by the transfer machine behind it.

[0004] Secondly, there is the retractable cable trolley storage system. This involves laying electro-hydraulic tubing on the cable trolley's support frame and storing the tubing by controlling the retraction of the cable trolley. There are two methods for retracting the cable trolley: hydraulic cylinder retraction, where two cable trolleys are connected by hydraulic cylinders, and controlling the cylinders' extension and retraction controls the support frame's extension and retraction; and a track is laid under the cable trolley, which is then automatically retracted by a transfer machine that pushes it forward.

[0005] The problems with the above two electro-hydraulic tubing storage methods during use are as follows:

[0006] Monorail storage requires laying monorail tracks on the tunnel roof in advance, advancing a certain distance, and then removing and moving the rear tracks to the front, which is time-consuming and labor-intensive. Moreover, since the monorail is installed above the tunnel, there is a risk of it falling off.

[0007] The storage of electro-hydraulic hoses in retractable cable trolleys relies on the retraction of hydraulic cylinders to shorten the distance between the trolleys. Therefore, storing a large number of hoses requires either using large-stroke hydraulic cylinders or increasing the number of cable trolleys, leading to excessively long hose runs and increased energy loss. When a rail-mounted cable trolley is pushed by a transfer machine for storage, the increased friction due to excessive hose storage can cause the transfer machine to deviate from its path. Furthermore, extending the cable trolley forward requires pulling the rails along with it, necessitating significant traction. Using cable trolleys for storage, with the hoses mounted on top, results in a high center of gravity when extended, making them prone to tipping over on uneven ground. Summary of the Invention

[0008] The main objective of this invention is to provide a coal mine roadway electro-hydraulic pipe folding storage device to solve the problems of high energy loss and low safety in existing electro-hydraulic pipe storage equipment.

[0009] To achieve the above objectives, according to one aspect of the present invention, a coal mine roadway electro-hydraulic pipe folding and storage device is provided, comprising: a cable car group, the cable car group including multiple cable cars and multiple electro-hydraulic pipes, the multiple cable cars being connected in sequence, at least one of the multiple cable cars including a first cable box and a second cable box, the first cable box and the second cable box being spaced apart and arranged at an angle, a driving unit being provided between the first cable box and the second cable box, one end of the driving unit being connected to the first cable box, and the other end of the driving unit being connected to the second cable box, controlling the driving unit to drive one of the first cable box and the second cable box to change the included angle between the first cable box and the second cable box, so that the first cable box and the second cable box have a storage position that is close to each other and in a folded state, and a carrying position that is in a preset state and used for carrying materials, the multiple electro-hydraulic pipes being retractably laid inside the first cable box and the second cable box, each electro-hydraulic pipe extending along the length direction of the cable car group.

[0010] Furthermore, the mine roadway electro-hydraulic pipe folding storage device also includes: an equipment train connected to a cable car located at the first end of the cable car group; and a control assembly located between the control assembly and the equipment train, with the control assembly connected to the cable car located at the second end of the cable car group.

[0011] Furthermore, the drive unit includes: a hydraulic cylinder connected to a first cable box; and a piston rod, one end of which is movably disposed within the hydraulic cylinder, and the other end of which is connected to a second cable box. When the first and second cable boxes are in the bearing position, the piston rod extends out of the hydraulic cylinder, and the angle between the first and second cable boxes is an obtuse angle. When the first and second cable boxes are in the retracted position, the piston rod is fully pushed into the hydraulic cylinder, and the angle between the first and second cable boxes is an acute angle.

[0012] Furthermore, a connecting assembly is provided between the first cable box and the second cable box. The connecting assembly includes: a first connecting rod, one end of which is connected to the first cable box; and a second connecting rod, the other end of which is hinged to one end of the first connecting rod and connected to the second cable box.

[0013] Furthermore, the control components include: a central control vehicle connected to a cable car located at the second end of the cable car group; multiple solenoid valves electrically connected to the central control vehicle; and multiple solenoid valves correspondingly connected to multiple drive units.

[0014] Furthermore, a transfer machine is installed on the side of the central control car away from the equipment train, and one or more distance sensors are installed on the central control car to detect the distance between the transfer machine and the central control car.

[0015] Furthermore, when the distance sensor detects that the distance between the transfer machine and the central control vehicle is less than the preset minimum distance, it controls multiple solenoid valves to open, the piston rod is pushed into the cylinder, the included angle between multiple first cable boxes and multiple second cable boxes is an acute angle, the electro-hydraulic pipe is in the contracted position, and the central control vehicle is driven to move in the direction of the equipment train.

[0016] Furthermore, when the distance sensor detects that the distance between the central control vehicle and the transfer machine is greater than the preset maximum distance, it controls multiple solenoid valves to close.

[0017] Furthermore, a connecting plate is provided between two adjacent cable cars, with one end of the connecting plate connected to one of the two adjacent cable cars and the other end of the connecting plate connected to the other of the two adjacent cable cars.

[0018] Furthermore, the surface of the equipment train is provided with a first pipe groove, the surface of the central control vehicle is provided with a second pipe groove, one end of at least one of the multiple electro-hydraulic pipes is disposed in the first pipe groove, and the other end of at least one of the multiple electro-hydraulic pipes is disposed in the second pipe groove.

[0019] By applying the technical solution of this invention, the cable car unit is configured as multiple flattenable and foldable cable cars. The angle between the first cable box and the second cable box is changed by controlling the drive unit, thereby allowing the cable car to switch between flattened and folded states. The cable car stores electro-hydraulic tubing. Therefore, the control drive unit enables the cable car unit to have an unfolded position for unfolding the electro-hydraulic tubing and a retracted position for retracting the electro-hydraulic tubing. This results in a larger electro-hydraulic tubing storage capacity, greater safety and reliability, automatic storage, and more convenient use. At the same time, when storing electro-hydraulic tubing over the same distance, the laying length of the electro-hydraulic tubing is shorter, which can reduce energy loss and save costs. Attached Figure Description

[0020] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0021] Figure 1 A schematic diagram of the structure of a first embodiment of the coal mine roadway electro-hydraulic pipe folding storage device according to the present invention is shown;

[0022] Figure 2 A schematic diagram of a second embodiment of the coal mine roadway electro-hydraulic pipe folding storage device according to the present invention is shown;

[0023] Figure 3 It shows Figure 2 Enlarged view of point A in the middle;

[0024] Figure 4A schematic diagram of the structure of a third embodiment of the coal mine roadway electro-hydraulic pipe folding storage device according to the present invention is shown;

[0025] Figure 5 It shows Figure 4 Enlarged diagram of point B in the middle.

[0026] The above figures include the following reference numerals:

[0027] 10. Cable car assembly; 11. Cable car; 12. First cable box; 13. Second cable box; 14. Drive unit; 141. Hydraulic cylinder; 142. Piston rod; 15. Electro-hydraulic pipe; 16. Connecting assembly; 161. First connecting rod; 162. Second connecting rod; 17. Connecting plate;

[0028] 20. Equipment train;

[0029] 30. Control components; 31. Centralized control vehicle. Detailed Implementation

[0030] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0031] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0032] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0033] Exemplary embodiments according to this application will now be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein. It should be understood that these embodiments are provided so that the disclosure of this application is thorough and complete, and that the concept of these exemplary embodiments is fully conveyed to those skilled in the art. In the drawings, for clarity, the thickness of layers and regions may be exaggerated, and the same reference numerals are used to denote the same devices, and therefore their description will be omitted.

[0034] It should be noted that a fully mechanized longwall face in a coal mine refers to a specific area selected during underground coal mining, where comprehensive mining operations are carried out. The longwall face typically includes coal seam development, support, tunneling, and transportation, and is the core area of ​​underground coal mining. On the longwall face, miners use equipment and tools to extract and transport coal, while also performing support work to ensure the safety and stability of the working face. The planning and management of the longwall face are crucial to the efficiency and safety of coal mining.

[0035] Combination Figures 1 to 5 As shown in the figure, according to a specific embodiment of the present invention, a folding storage device for electro-hydraulic pipes in a coal mine roadway is provided.

[0036] Specifically, such as Figure 1 As shown, a coal mine roadway electro-hydraulic pipe folding and storage device includes: a cable car group 10, which includes multiple cable cars 11 and multiple electro-hydraulic pipes 15. The multiple cable cars 11 are connected in sequence. At least one of the multiple cable cars 11 includes a first cable box 12 and a second cable box 13. The first cable box 12 and the second cable box 13 are spaced apart and arranged at an angle. A drive unit 14 is provided between the first cable box 12 and the second cable box 13. One end of the drive unit 14 is connected to the first cable box 12, and the other end of the drive unit 14 is connected to the second cable box 13. The control drive unit 14 drives one of the first cable box 12 and the second cable box 13 to change the included angle between the first cable box 12 and the second cable box 13, so that the first cable box 12 and the second cable box 13 have a storage position that is close to each other and in a folded state, and so that the first cable box 12 and the second cable box 13 have a bearing position that is in a preset state and used to carry materials. A plurality of electro-hydraulic pipes 15 are telescopically laid inside the first cable box 12 and the second cable box 13, and each electro-hydraulic pipe 15 extends along the length direction of the cable car group 10.

[0037] In this embodiment, by setting the cable trolley group 10 as multiple flattenable and foldable cable trolleys 11, and controlling the drive unit 14 to change the angle between the first cable box 12 and the second cable box 13, the cable trolley 11 switches between flattened and folded states. The cable trolley 11 stores electro-hydraulic tubes 15. Therefore, the drive unit 14 controls the cable trolley group 10 to have an unfolded position for unfolding the electro-hydraulic tubes 15 and a retracted position for retracting the electro-hydraulic tubes 15. This results in a larger storage capacity of electro-hydraulic tubes 15, greater safety and reliability, automatic storage, and more convenient use. At the same time, when storing electro-hydraulic tubes 15 over the same distance, the laying length of the electro-hydraulic tubes 15 is shorter, which can reduce energy loss and save costs.

[0038] Furthermore, the mine roadway electro-hydraulic pipe folding and storage device also includes: an equipment train 20, which is connected to the cable car 11 located at the first end of the cable car group 10; and a control component 30, which is located between the control component 30 and the equipment train 20, and is connected to the cable car 11 located at the second end of the cable car group 10. The equipment train 20 is used to drive the cable car group 10 to move, thereby moving the electro-hydraulic pipe 15 to the required position in the fully mechanized coal mining face. The control component 30 is used to control the state of the drive unit 14, thereby controlling the switching between the flattened state and the folded state of the cable car group 10.

[0039] like Figure 2 , Figure 3 As shown, the drive unit 14 includes: a hydraulic cylinder 141 connected to a first cable box 12; and a piston rod 142, one end of which is movably disposed within the hydraulic cylinder 141, and the other end of which is connected to a second cable box 13. When the first cable box 12 and the second cable box 13 are in the bearing position, the piston rod 142 extends out of the hydraulic cylinder 141, and the angle between the first cable box 12 and the second cable box 13 is an obtuse angle. When the first cable box 12 and the second cable box 13 are in the retracted position, the piston rod 142 is fully pushed into the hydraulic cylinder 141, and the angle between the first cable box 12 and the second cable box 13 is an acute angle. This arrangement allows control of the piston movement of the piston rod 142 within the hydraulic cylinder 141 to control the switching between the flattened and folded states of the cable car assembly 10. In this embodiment, the hydraulic cylinder 141 is a hydraulic cylinder. Using a hydraulic cylinder allows for the transmission of high power through hydraulic fluid. Compared to other transmission methods, such as electric or mechanical transmission, the hydraulic system can achieve a higher power density. Since the movement of hydraulic cylinders is driven by hydraulic fluid, hydraulic systems have good buffering and shock absorption performance, which can achieve a smooth movement process and reduce the vibration and impact of mechanical equipment.

[0040] Furthermore, a connecting assembly 16 is provided between the first cable box 12 and the second cable box 13. The connecting assembly 16 includes: a first connecting rod 161, one end of which is connected to the first cable box 12; and a second connecting rod 162, the other end of which is hinged to one end of the first connecting rod 161 and the other end of the second connecting rod 162, which is connected to the second cable box 13. This arrangement is simple and space-saving. In other embodiments, the connecting assembly 16 can be supplemented with a pair of connecting rods to form a four-bar linkage, which allows the cable trolley 11 to have a smaller included angle when retracted and a larger included angle when deployed, further increasing the electro-hydraulic hose storage capacity.

[0041] Furthermore, the control assembly 30 includes: a central control vehicle 31 connected to the cable trolley 11 located at the second end of the cable trolley assembly 10; multiple solenoid valves electrically connected to the central control vehicle 31; and multiple solenoid valves correspondingly connected to multiple drive units 14. The central control vehicle 31 serves as the control unit for the entire device, controlling the device. The solenoid valves control the drive units 14, controlling the angle between the first cable box 12 and the second cable box 13, thereby controlling the switching between the flattened and folded states of the cable trolley assembly 10.

[0042] It's important to note that solenoid valves are typically used to control the flow of fluid in hydraulic systems. By controlling the on / off state of the solenoid valve, the flow of hydraulic oil can be controlled, thereby controlling the movement of the piston in the cylinder. When the solenoid valve is open, hydraulic oil can flow into the cylinder, pushing the piston. The piston will be pushed into the cylinder body according to the hydraulic pressure inside the cylinder until it reaches the desired position or its maximum stroke. At this point, whether the piston is fully pressed into the cylinder depends on the applied pressure and the cylinder design. It's crucial to understand that the solenoid valve only controls the flow of hydraulic oil; the piston's stroke and position depend on the design and control of the hydraulic system. Therefore, whether the piston is fully pressed into the cylinder depends on the design of the hydraulic system and the application requirements.

[0043] Furthermore, a transfer conveyor is installed on the side of the central control vehicle 31 away from the equipment train 20. One or more distance sensors are installed on the central control vehicle 31 to detect the distance between the transfer conveyor and the central control vehicle 31. The distance sensors can be replaced by two proximity switches, or other sensors can be used, as long as the distance between the central control vehicle 31 and the transfer conveyor can be controlled within a certain range.

[0044] like Figure 4 , Figure 5 As shown, when the distance sensor detects that the distance between the transfer machine and the central control vehicle 31 is less than the preset minimum distance, it controls multiple solenoid valves to open, the piston rod 142 is pushed into the cylinder 141, the included angle between multiple first cable boxes 12 and multiple second cable boxes 13 is an acute angle, the electro-hydraulic pipe 15 is in the retracted position, and the central control vehicle 31 is driven to move in the direction of the equipment train 20.

[0045] like Figure 2 , Figure 3 As shown, when the distance sensor detects that the distance between the central control vehicle and the transfer machine is greater than the preset maximum distance, it controls multiple solenoid valves to close.

[0046] Furthermore, a connecting plate 17 is provided between two adjacent cable cars 11. One end of the connecting plate 17 is connected to one of the two adjacent cable cars 11, and the other end of the connecting plate 17 is connected to the other of the two adjacent cable cars 11. The connecting plate 17 is used to connect the two adjacent cable cars 11.

[0047] Furthermore, the surface of the equipment train 20 is provided with a first pipe groove, and the surface of the central control vehicle 31 is provided with a second pipe groove. At least one end of the plurality of electro-hydraulic pipes 15 is disposed in the first pipe groove, and the other end of the plurality of electro-hydraulic pipes 15 is disposed in the second pipe groove. This arrangement increases the laying length of the electro-hydraulic pipes 15. In this embodiment, an electro-hydraulic pipeline is provided inside the cable car 11, and the electro-hydraulic pipes 15 are stored inside the electro-hydraulic pipeline. The electro-hydraulic pipeline is connected to the first pipe groove and the second pipe groove.

[0048] The electro-hydraulic tubing of this application has a low center of gravity after folding, eliminating the risk of tipping over, and is also easy to lay during installation. Compared with existing technologies, the cable trough occupies less space after folding, significantly reducing the length of electro-hydraulic tubing to be laid when storing the same length. Furthermore, the cable trough structure is simple and easy to manufacture, using less material and saving costs. This invention enables automatic storage and retraction of the electro-hydraulic tubing, automatically adjusting its course as the coal mine working face advances, preventing interference with the conveyor belt or coal wall, thus improving the safety of the electro-hydraulic tubing retraction process. The storage rack is equipped with wheels, eliminating the need for rails, saving time and effort; the small space occupied after folding significantly shortens the length of the electro-hydraulic tubing arrangement, saving costs.

[0049] When installation begins on the fully mechanized coal mining face, the cable trolley 11 is in the deployed state, the angle between the first cable box 12 and the second cable box 13 is at its maximum, and the hydraulic cylinders are in the extended state. After mining begins and the fully mechanized coal mining face advances, the hydraulic supports on the working face push the transfer machine forward. When the transfer machine reaches a distance less than the minimum value set by the distance sensor on the control vehicle 31, the solenoid valve of the electro-hydraulic control system is triggered to open, causing the cylinder piston rod to retract. This reduces the angle between the first cable box 12 and the second cable box 13, causing the electro-hydraulic pipe storage rack to retract and fold forward, simultaneously driving the control vehicle 31 forward until the distance between the control vehicle 31 and the transfer machine reaches the maximum value set by the sensor. At this point, the solenoid valve is disconnected, and the hydraulic cylinders stop moving. This process repeats until all the hydraulic cylinders of the cable trolley 11 are fully retracted. Then, the hydraulic cylinder pressure is released, the working face stops, the equipment train 20 moves forward, and the cable trolley 11 is deployed along with the equipment train 20. This continues until all cable trolleys 11 are fully deployed, the equipment train stops, and the working face starts operating again.

[0050] It should be noted that the lengths of the first cable box 12 and the second cable box 13 are less than the height of the roadway minus the length of the anchor cable; the length of the connecting plate 17 between two adjacent cable cars 11 and the determination of the distance between the first cable box 12 and the second cable box 13 after folding; the commonly used cables in mines are 3300V high-voltage cables with a diameter of approximately φ100mm, and the minimum bending radius can be found to be approximately 600mm according to relevant national standards; the hydraulic supply pipes for the working face on the transfer train are generally DN50-DN63 four-layer steel wire wound high-pressure hoses, with a minimum bending radius of 500-630mm. Therefore, the distance between the edge of the electro-hydraulic pipe and the cable box after folding the first cable box 12 and the second cable box 13 must be greater than the minimum bending diameter of the high-pressure hose, i.e., 1260mm. Since the connecting plate 17 is installed at the rear of the cable car 11, its minimum length should be the minimum bending diameter of the high-pressure hose plus the outer diameter of the hose. The outer diameter of the DN63 high-pressure hose is approximately 120mm, so the minimum length of the connecting plate should be 1380mm. The installation position and stroke of the hydraulic cylinder determine the included angle between the first cable box 12 and the second cable box 13, thereby determining the storage length of the electro-hydraulic pipe.

[0051] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0052] In addition to the above, it should be noted that the terms "one embodiment," "another embodiment," and "embodiment" used in this specification refer to specific features, structures, or characteristics described in connection with that embodiment, which are included in at least one embodiment described in the general description of this application. The appearance of the same expression in multiple places in the specification does not necessarily refer to the same embodiment. Furthermore, when a specific feature, structure, or characteristic is described in connection with any embodiment, the intention is to suggest that implementing such a feature, structure, or characteristic in conjunction with other embodiments also falls within the scope of this invention.

[0053] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0054] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A folding storage device for electro-hydraulic pipes in a coal mine roadway, characterized in that, include: A cable car assembly (10) includes multiple cable cars (11) and multiple electro-hydraulic pipes (15). The multiple cable cars (11) are connected in sequence. At least one of the multiple cable cars (11) includes a first cable box (12) and a second cable box (13). The first cable box (12) and the second cable box (13) are spaced apart and arranged at an angle. A drive unit (14) is provided between the first cable box (12) and the second cable box (13). One end of the drive unit (14) is connected to the first cable box (12), and the other end of the drive unit (14) is connected to the second cable box (13). The drive unit (14) is controlled by the cable car assembly (15). 4) Drive one of the first cable box (12) and the second cable box (13) to change the angle between the first cable box (12) and the second cable box (13) so that the first cable box (12) and the second cable box (13) have a storage position that is close to each other and in a folded state, and so that the first cable box (12) and the second cable box (13) have a bearing position in a preset state and used for carrying materials. A plurality of electro-hydraulic pipes (15) are telescopically laid in the first cable box (12) and the second cable box (13), and each electro-hydraulic pipe (15) extends along the length direction of the cable car group (10). Equipment train (20), which is connected to the cable car (11) located at the first end of the cable car group (10); A control assembly (30) is located between the control assembly (30) and the equipment train (20), and the control assembly (30) is connected to the cable car (11) located at the second end of the cable car assembly (10); The drive unit (14) includes: Hydraulic cylinder (141), which is connected to the first cable box (12); A piston rod (142) is provided, one end of which is movably disposed within the hydraulic cylinder (141), and the other end of which is connected to the second cable box (13). When the first cable box (12) and the second cable box (13) are in the bearing position, the piston rod (142) extends out of the oil cylinder (141), and the included angle between the first cable box (12) and the second cable box (13) is an obtuse angle. When the first cable box (12) and the second cable box (13) are in the retracted position, the piston rod (142) is fully pushed into the oil cylinder (141), and the included angle between the first cable box (12) and the second cable box (13) is an acute angle. The control component (30) includes; The central control vehicle (31) is connected to the cable vehicle (11) located at the second end of the cable vehicle group (10). Multiple solenoid valves are electrically connected to the central control vehicle (31), and the multiple solenoid valves are connected one-to-one with the multiple drive units (14); A transfer machine is provided on the side of the central control vehicle (31) away from the equipment train (20). One or more distance sensors are provided on the central control vehicle (31) for detecting the distance between the transfer machine and the central control vehicle (31). When the distance sensor detects that the distance between the transfer machine and the central control vehicle (31) is less than the preset minimum distance, it controls multiple solenoid valves to open, the piston rod (142) is pushed into the oil cylinder (141), the included angle between multiple first cable boxes (12) and multiple second cable boxes (13) is an acute angle, the electro-hydraulic pipe (15) is in the retracted position, and the central control vehicle (31) is driven to move in the direction of the equipment train (20).

2. The coal mine roadway electro-hydraulic pipe folding storage device according to claim 1, characterized in that, A connecting assembly (16) is provided between the first cable box (12) and the second cable box (13), the connecting assembly (16) comprising: The first link (161) is connected at one end to the first cable box (12). The second link (162) is hinged to one end of the first link (161), and the other end of the second link (162) is connected to the second cable box (13).

3. The coal mine roadway electro-hydraulic pipe folding storage device according to claim 1, characterized in that, When the distance sensor detects that the distance between the central control vehicle and the transfer machine is greater than a preset maximum distance, it controls multiple solenoid valves to close.

4. The coal mine roadway electro-hydraulic pipe folding storage device according to claim 1, characterized in that, A connecting plate (17) is provided between two adjacent cable cars (11), one end of the connecting plate (17) is connected to one of the two adjacent cable cars (11), and the other end of the connecting plate (17) is connected to the other of the two adjacent cable cars (11).

5. The coal mine roadway electro-hydraulic pipe folding storage device according to claim 1, characterized in that, The surface of the equipment train (20) is provided with a first pipe groove, and the surface of the central control vehicle (31) is provided with a second pipe groove. One end of at least one of the multiple electro-hydraulic pipes (15) is disposed in the first pipe groove, and the other end of at least one of the multiple electro-hydraulic pipes (15) is disposed in the second pipe groove.

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