A support device and a mining equipment using the same

Abstract

The present invention discloses a support device, belonging to the field of mine support. The support device includes a top support frame, a first telescopic arm, a face support frame and a second telescopic arm; the top support frame is foldable, the top support frame is connected to the first telescopic arm, and the first telescopic arm is used to control the telescopic movement of the top support frame; the face support frame includes a support mesh panel and a second telescopic arm, the support mesh panel is foldable, the support mesh panel includes a main mesh panel and at least one auxiliary mesh panel, and the second telescopic arm is connected to the first telescopic arm. In the present invention, the top support frame is eccentrically arranged to adapt to the installation position of the main telescopic support arm on the equipment, ensuring that the top support frame is still in the middle position of the roadway during support; moreover, both the top support frame and the face support frame are arranged as foldable structures, and the top support frame and the face support frame can be adjusted separately. Such an arrangement can be adjusted according to the actual situation, expanding the application range of the support device.

Description

Technical Field

[0001] The present invention belongs to the field of mine support, and more specifically, relates to a support device and a mining equipment using the same. Background Art

[0002] There are many mining equipments, including roof bolters and roadheaders. Roof bolters and roadheaders usually work in coal mine roadways. A coal mine roadway refers to a passageway driven for mining hoisting, transportation, ventilation, drainage, power supply, etc. during underground mining. In the process of driving roadways in coal mines, in order to ensure the safety during driving, corresponding support frames are usually used to support roof bolters and roadheaders.

[0003] Among the existing support frames, some support frames are not in the middle position of the roadway during the support process; some support frames are too large in size and cannot be used in narrow coal mine roadways; some support frames can only perform lateral support in coal mine roadways, and the longitudinal support range for coal mine roadways is very small or even non-existent. In addition, some current mining equipments do not have a face support device, and although some mining equipments are provided with a face support device, some of the face support devices have fixed specifications and cannot be adjusted according to actual situations.

[0004] CN209892255U discloses a support device and a roof bolter. The support device includes a face support frame, a roof protection frame, a support mechanism and a face support member. The roof protection frame is arranged on the support mechanism. The face support frame is arranged on the front side of the roof protection frame and extends downward. Flap protection components are arranged on both sides of the roof protection frame. The flap protection components are hinged to the roof protection frame and can be flipped to be flush with the roof protection frame or flipped above the roof protection frame. The face support member is arranged on the roof protection frame and the other end is connected to the face support frame. Although this support device can support on the top and the front side in the driving direction, the face support frame and the roof protection frame cannot be separated and used alone, which is inconvenient to operate. Summary of the Invention

[0005] Aiming at the problems that the top support frame and the face support frame cannot be used separately and the operation is inconvenient, the object of the present invention is to provide a support device, which includes a top support frame, a first telescopic arm, a face support frame and a second telescopic arm. In the present invention, the top support frame and the face support frame are separately arranged, and the operation is relatively convenient; in the present invention, the top support frame is eccentrically arranged to adapt to the installation position of the main telescopic support arm on the equipment, so as to ensure that the top support frame is still in the middle position of the roadway during support; the top support frame is made to be retractable and expandable at both ends by using the first oil cylinder and the second oil cylinder. The advantages of such a setting are, firstly, to reduce the overall volume after contraction, which is convenient for use in narrow roadways, and secondly, the support width can be larger after expansion; at the same time, wing plates are provided on both sides of the first support frame and the second support frame, and the wing plates are also of a folding structure, which can increase the support range in the longitudinal direction of the roadway and has a small volume after storage; the face support frame in the present invention can prevent the falling stones on the face from injuring workers during the support work and tunneling, etc., and has good safety. The support mesh plate is also of a folding structure, and the support mesh plate is folded at one-third. Such a setting not only has a relatively large area of support after folding to meet the daily needs, but also can meet the operation requirements of a larger area after expansion; at the same time, the support mesh plate is connected to the second telescopic arm through a ball head, which can adapt to different faces. A limit block is provided at the ball head connection to prevent the support mesh plate from rotating; after the support mesh plate is retracted, it is limited by a limit chain and a limit hook, and after the support mesh plate is expanded, it is limited by a pair of U-shaped parts and pins at the hinge, with a simple structure and convenient operation.

[0006] One of the concepts of the present invention is to provide a support device. The support device includes a top support frame and a first telescopic arm. The top support frame is foldable. The top support frame includes an eccentric support frame, a first support frame, a second support frame, a first oil cylinder and a second oil cylinder. One end of the eccentric support frame is movably connected to the first support frame, and the other end of the eccentric support frame is movably connected to the second support frame. The first oil cylinder is used to connect the eccentric support frame and the first support frame, and the second oil cylinder is used to connect the eccentric support frame and the second support frame; the top support frame is connected to the first telescopic arm, and the first telescopic arm is used to control the expansion and contraction of the top support frame. The first telescopic arm is connected with a third oil cylinder, and the third oil cylinder is used to connect to the mining equipment; in the present invention, the support frame is eccentrically arranged to adapt to the installation position of the main telescopic support arm on the equipment, so as to ensure that the support frame is still in the middle position of the roadway during support; the support frame is made to be retractable and expandable at both ends by using the first oil cylinder and the second oil cylinder. The advantages of such a setting are, firstly, to reduce the overall volume after contraction, which is convenient for use in narrow roadways, and secondly, the support width can be larger after expansion; in the present invention, the angle and height of the top support frame are adjusted through the first telescopic arm, so as to adjust the support range of the top support frame.

[0007] In some embodiments, one end of the eccentric support frame is connected to the first support frame through a connection structure, and the other end of the eccentric support frame is also connected to the second support frame through the connection structure.

[0008] The connection structure includes a pin shaft and a fixing plate.

[0009] The pin shaft is provided with a first groove.

[0010] In some embodiments, one end of the pin shaft is provided with a first groove.

[0011] In some embodiments, the first groove is an annular groove.

[0012] In some embodiments, the depth of the first groove extends along the radial direction of the pin shaft.

[0013] The fixing plate abuts against the first groove. Such a setting not only facilitates disassembly, but also can reduce the possibility of the pin shaft being disengaged due to multiple rotations. At the same time, when the dropped impurities fall on the first groove, the rotation of the pin shaft can drive the impurities to move and make them fall from the second groove, reducing the possibility of impurities entering the support frame and thus affecting the support frame.

[0014] In some embodiments, the shape of the fixing plate is a cuboid.

[0015] In some embodiments, the height of the fixing plate is less than the depth of the first groove.

[0016] In some embodiments, the height of the fixing plate is matched with the depth of the first groove so that the fixing plate can just be stuck into one side of the first groove.

[0017] The pin shaft is further provided with a counterbore, and the counterbore is the inlet of grease.

[0018] In some embodiments, one end of the pin shaft is provided with a counterbore.

[0019] In some embodiments, the counterbore and the first groove are located at the same end of the pin shaft.

[0020] In some embodiments, the shape of the counterbore is circular.

[0021] The pin shaft is provided with a second groove, and the second groove can store grease to reduce the occurrence of the situation that the operation of the pin shaft is not smooth due to insufficient grease.

[0022] In some embodiments, the second groove is arranged on the side surface of the pin shaft.

[0023] In some embodiments, the pin shaft is provided with four second grooves, and the four second grooves are evenly distributed circumferentially along the side surface of the pin shaft.

[0024] In some embodiments, the second groove is provided with a through hole, and the through hole communicates with the counterbore. Such a setting allows the grease to enter the second groove and the connection between the pin shaft and the support frame from the counterbore through the through hole, so that the pin shaft rotates smoothly on the support frame.

[0025] The first oil cylinder includes a first oil cylinder body and a first piston rod.

[0026] The first oil cylinder body is connected to the eccentric support frame through a connection structure.

[0027] In some embodiments, the pin shaft connects the first oil cylinder body and the eccentric support frame, and the fixing plate is connected to the eccentric support frame by bolts.

[0028] The first piston rod is also connected to the first support frame through a connection structure.

[0029] In some embodiments, the pin shaft connects the first piston rod and the first support frame, and the fixing plate is connected to the first support frame by bolts.

[0030] The second oil cylinder includes a second oil cylinder body and a second piston rod.

[0031] The second oil cylinder body is also connected to the eccentric support frame through a connection structure.

[0032] In some embodiments, the pin shaft connects the second oil cylinder body and the eccentric support frame, and the fixing plate is connected to the eccentric support frame by bolts.

[0033] The second piston rod is also connected to the second support frame through a connection structure.

[0034] In some embodiments, the pin shaft connects the second piston rod and the second support frame, and the fixing plate is connected to the second support frame by bolts.

[0035] The top support frame further includes wing plates. Wing plates are provided on both sides of the folding support, and the wing plates are also of a folding structure, which can increase the longitudinal support range of the roadway and have a small volume after being stored.

[0036] One end of the first support frame is connected to the eccentric support frame, and the other end of the first support frame is connected with a first wing plate.

[0037] In some embodiments, the first wing plate is perpendicular to the first support frame.

[0038] The first wing plate is provided with a first fixing hole and a second fixing hole.

[0039] In some embodiments, the first fixing hole and the second fixing hole are respectively located on both sides of the first wing plate.

[0040] One end of the first wing plate is connected to a first folding plate, and the other end of the first wing plate is connected to a second folding plate.

[0041] In some embodiments, the first folding plate is movably connected to the first wing plate, and the second folding plate is movably connected to the first wing plate.

[0042] In some embodiments, when the first folding plate and the second folding plate are unfolded, the first folding plate, the first wing plate, and the second folding plate are all on the same horizontal plane.

[0043] In some embodiments, the width of the first folding plate is smaller than the width of the first wing plate, the width of the second folding plate is smaller than the width of the first wing plate, and the total width of the first folding plate and the second folding plate is smaller than the width of the first wing plate.

[0044] The first folding plate is provided with a first fixing convex block that cooperates with the first fixing hole, and the second folding plate is provided with a second fixing convex block that cooperates with the second fixing hole.

[0045] In some embodiments, the first fixing convex block and the second fixing convex block are provided with pin holes for connecting pins. The pins are connected to a pull ring. When the first folding plate and the second folding plate are folded onto the first wing plate, the first fixing convex block just passes through the first fixing hole, and the second fixing convex block just passes through the second fixing hole. The operator can pass the pin through the pin hole to fix the first folding plate and the second folding plate, which is also convenient for storage. The operator can also pull the pull ring to take out the pin from the pin hole and then unfold the first folding plate and the second folding plate, which is convenient to operate.

[0046] One end of the second support frame is connected to the eccentric support frame, and the other end of the second support frame is connected to a second wing plate.

[0047] In some embodiments, the second wing plate is perpendicular to the second support frame.

[0048] The second wing plate is provided with a third fixing hole and a fourth fixing hole.

[0049] In some embodiments, the third fixing hole and the fourth fixing hole are respectively located on both sides of the second wing plate.

[0050] One end of the second wing plate is connected to a third folding plate, and the other end of the second wing plate is connected to a fourth folding plate.

[0051] In some embodiments, the third folding plate is movably connected to the second wing plate, and the fourth folding plate is movably connected to the second wing plate.

[0052] In some embodiments, when the third folding plate and the fourth folding plate are unfolded, the third folding plate, the second wing plate, and the fourth folding plate are all on the same horizontal plane.

[0053] In some embodiments, the width of the third folding plate is less than the width of the second wing plate, the width of the fourth folding plate is less than the width of the second wing plate, and the total width of the third folding plate and the fourth folding plate is less than the width of the second wing plate.

[0054] The third folding plate is provided with a third fixing bump that cooperates with the third fixing hole, and the fourth folding plate is provided with a fourth fixing bump that cooperates with the fourth fixing hole.

[0055] In some embodiments, the third fixing bump and the fourth fixing bump are also provided with pin holes for connecting pins. The pins are connected with pull rings. In this way, when the third folding plate and the fourth folding plate are folded onto the second wing plate, the third fixing bump just passes through the third fixing hole, and the fourth fixing bump just passes through the fourth fixing hole. The operator can pass the pins through the pin holes to fix the third folding plate and the fourth folding plate, which is also convenient for storage; the operator can also pull the pull rings to take out the pins from the pin holes and then unfold the third folding plate and the fourth folding plate, which is convenient to operate.

[0056] Another concept of the present invention is to provide a support device and a mining equipment using the same. The support device includes a face support frame and a second telescopic arm. The face support frame includes a support mesh plate and a second telescopic arm. The support mesh plate is foldable. The support mesh plate includes a main mesh plate and at least one sub-mesh plate. The sub-mesh plate is movably connected to the main mesh plate. The main mesh plate is connected to the second telescopic arm, and the second telescopic arm is used to control the expansion and contraction of the support mesh plate.

[0057] The support mesh plate includes a main mesh plate and a sub-mesh plate. Both the main mesh plate and the sub-mesh plate are grid-shaped, which can not only play a role in face support but also facilitate cleaning.

[0058] In some embodiments, the contour shape of the main mesh plate is a cuboid, and the contour shape of the sub-mesh plate is also a cuboid.

[0059] In some embodiments, the length and height of the sub-mesh plate are equal to those of the main mesh plate, and the width of the sub-mesh plate is half of that of the main mesh plate. Here, the length refers to the longest side length, the width refers to the second longest side length, and the height refers to the shortest side length.

[0060] The main mesh plate is hinged to the sub-mesh plate.

[0061] In some embodiments, the main mesh plate and the sub-mesh plate are hinged along the length direction of the main mesh plate and the sub-mesh plate.

[0062] In some embodiments, the main mesh panel and the secondary mesh panel are hinged along the length direction of the main mesh panel and the secondary mesh panel, and the length and height of the secondary mesh panel are equal to those of the main mesh panel. The width of the secondary mesh panel is half of that of the main mesh panel. Here, the length refers to the longest side length, and the width refers to the second longest side length, and the width refers to the shortest side length. It can be understood that the support mesh panel is folded at one-third. Such a setting not only provides a relatively large area of support after folding to meet daily needs, but also can meet the operation requirements of a larger area after unfolding.

[0063] In some embodiments, there are two hinged joints between the main mesh panel and the secondary mesh panel.

[0064] A contraction limiting mechanism is provided between the main mesh panel and the secondary mesh panel.

[0065] In some embodiments, the contraction limiting mechanism includes a limiting chain and a limiting hook.

[0066] In some embodiments, the limiting chain is arranged on the secondary mesh panel.

[0067] In some embodiments, two limiting chains are arranged on the secondary mesh panel. The two limiting chains are respectively located at both ends of the secondary mesh panel, and the two limiting chains are located at one end of the secondary mesh panel far from the hinged joint between the secondary mesh panel and the main mesh panel.

[0068] In some embodiments, the limiting hook is arranged on the main mesh panel.

[0069] In some embodiments, two limiting hooks are arranged on the main mesh panel. The two limiting hooks are respectively located at both ends of the main mesh panel, and the two limiting hooks are located at one end of the main mesh panel close to the hinged joint between the main mesh panel and the secondary mesh panel.

[0070] In some embodiments, the two limiting hooks correspond to the two limiting chains one by one. When the support mesh panel contracts, the secondary mesh panel is folded onto the main mesh panel, and the two limiting chains respectively hook the two limiting hooks corresponding to the two limiting chains, so as to fix the secondary mesh panel to the main mesh panel, so that the secondary mesh panel does not affect storage and reduces the storage volume of the support mesh panel.

[0071] An unfolding limiting mechanism is provided between the main mesh panel and the secondary mesh panel.

[0072] In some embodiments, the unfolding limiting mechanism includes a U-shaped member and a pin.

[0073] In some embodiments, the unfolding limiting mechanism includes four U-shaped members and two pins.

[0074] In some embodiments, the U-shaped member is located at the hinged joint between the main mesh panel and the secondary mesh panel.

[0075] In some embodiments, two of the U-shaped members are located at one hinge of the main net plate and the secondary net plate, and the other two U-shaped members are located at the other hinge of the main net plate and the secondary net plate.

[0076] In some embodiments, at the same hinge, one U-shaped member is connected to the main net plate and the other U-shaped member is connected to the secondary net plate. When the support net plate is unfolded, the two U-shaped members at the same hinge are on the same horizontal line. At this time, a pin is passed through the two U-shaped members, and the same is true for the U-shaped members and the pin at the other hinge. In this way, the main net plate and the secondary net plate can be fixed on the same plane, preventing the secondary net plate from rotating when it is unfolded, so that the secondary net plate does not affect the operation of the entire support net plate when it is unfolded.

[0077] The support net plate is connected to the second telescopic arm through a ball head.

[0078] One end of the ball head is connected to the main net plate, and the other end of the ball head is connected to the second telescopic arm.

[0079] In some embodiments, the ball head and the second telescopic arm are connected through a connecting member.

[0080] In some embodiments, one end of the connecting member is provided with an inlet.

[0081] In some embodiments, the inlet is an inlet for engine oil. The operator can add engine oil into the ball head from the inlet, so that the ball head and the support net plate rotate more smoothly, reduce the wear of the ball head and the support net plate, and relatively extend the service life of the ball head and the support net plate.

[0082] A limiting block is provided at the connection of the ball head, and the limiting block is used to limit the rotation of the support net plate.

[0083] The limiting block is connected to the ball head.

[0084] In some embodiments, the limiting block abuts against the ball head.

[0085] In some embodiments, the limiting block is welded to the ball head.

[0086] The limiting block is located between the second telescopic arm and the main net plate.

[0087] The limiting block is connected to the second telescopic arm.

[0088] In some embodiments, the limiting block is welded to the second telescopic arm.

[0089] The second telescopic arm is provided with a telescopic mechanism.

[0090] In some embodiments, the second telescopic arm is telescoped by an oil cylinder.

[0091] The telescopic end of the oil cylinder is connected to the support net plate.

[0092] In some embodiments, the telescopic end of the oil cylinder is connected to the main mesh plate.

[0093] Another concept of the present invention is to provide a mining equipment, which includes the above-mentioned support device. The second telescopic arm is connected to the first telescopic arm through a fourth oil cylinder, and the fourth oil cylinder is located on the first telescopic arm.

[0094] In some embodiments, the mining equipment is a bolter, and it can be understood that the above-mentioned support device is used for the bolter.

[0095] In some embodiments, the mining equipment is a roadheader, and it can be understood that the above-mentioned support device is used for the roadheader.

[0096] Technical effects and advantages of the present invention:

[0097] 1. In the present invention, the top support frame is eccentrically arranged to adapt to the installation position of the support main telescopic arm on the equipment, ensuring that the top support frame is still in the middle position of the roadway during support.

[0098] 2. In the present invention, the first oil cylinder and the second oil cylinder are used to make the top support frame retractable and expandable at both ends. The advantages of this setting are: first, the overall volume after contraction is reduced, which is convenient for use in narrow roadways; second, the support width after expansion can be larger, expanding the support range and further ensuring the personal safety of the operator; moreover, wing plates are provided on both sides of the first support frame and the second support frame, and the wing plates are also connected to folding plates (it can also be understood that the wing plates are also folding structures), which can increase the support range in the longitudinal direction of the roadway and have a smaller volume after storage.

[0099] 3. In the present invention, the face support frame can prevent falling rocks at the face from injuring workers during support work and tunneling, etc., and has good safety. The support mesh plate is also a folding structure, which is convenient for storage. And the support mesh plate is folded at one-third, so that not only there is a relatively large area of support after folding to meet daily needs, but also a larger area of operation needs can be met after expansion, expanding the application range of the present invention.

[0100] 4. In the present invention, the support mesh plate is connected to the second telescopic arm through a ball head, which can adapt to different faces and expand the application range of the present invention. A limit block is also provided at the ball head connection to prevent the support mesh plate from rotating.

[0101] 5. In the present invention, a contraction limit mechanism and an expansion limit mechanism are provided for the support mesh plate to limit the support mesh plate. After the support mesh plate is contracted, it is limited by a limit chain and a limit hook, and after the mesh plate is expanded, it is limited by a pair of U-shaped parts and pins at the hinge, with a simple structure and convenient operation.

[0102] 6. The present invention adjusts the angle and height of the top support frame through the first telescopic arm, thereby adjusting the support range of the top support frame. At the same time, the angle and height of the face support frame are adjusted through the second telescopic arm, thereby adjusting the support range of the face support frame, and further expanding the application range of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0103] Figure 1 is the overall structural schematic diagram of the support device of the present application;

[0104] Figure 2 is the overall structural schematic diagram of the support device of the present application;

[0105] Figure 3 is the partial structural schematic diagram of the support device of the present application;

[0106] Figure 4 is the partial structural schematic diagram of the support device of the present application;

[0107] Figure 5 is the partial structural schematic diagram of the support device of the present application;

[0108] Figure 6 is the partial structural schematic diagram of the support device of the present application;

[0109] Figure 7 is the partial structural schematic diagram of the support device of the present application;

[0110] Figure 8 is the overall structural schematic diagram of the support device of the present application.

[0111] In the figure:

[0112] 1. Eccentric support frame;

[0113] 2. First support frame;

[0114] 3. Second support frame;

[0115] 4. First oil cylinder; 4.1. First oil cylinder body; 4.2. First piston rod;

[0116] 5. Second oil cylinder; 5.1. Second oil cylinder body; 5.2. Second piston rod;

[0117] 6. Pin shaft; 6.1. First groove; 6.2. Counterbore; 6.3. Second groove; 6.4. Through hole;

[0118] 7. Fixed plate;

[0119] 8. First wing plate; 8.1. First fixing hole; 8.2. Second fixing hole;

[0120] 9. Second wing plate; 9.1. Third fixing hole; 9.2. Fourth fixing hole;

[0121] 10. First folding plate; 10.1 First fixing bump;

[0122] 11. Second folding plate; 11.1 Second fixing bump;

[0123] 12. Third folding plate; 12.1 Third fixing bump;

[0124] 13. Fourth folding plate; 13.1 Fourth fixing bump;

[0125] 14. First telescopic arm;

[0126] 15. Third oil cylinder;

[0127] 16. Fourth oil cylinder;

[0128] 17. Support mesh plate;

[0129] 18. Ball head;

[0130] 19. Second telescopic arm;

[0131] 20. Main mesh plate;

[0132] 21. Sub - mesh plate;

[0133] 22. Limit chain;

[0134] 23. Limit hook;

[0135] 24. U - shaped part;

[0136] 25. Limit block. Detailed implementation manners

[0137] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation manners. The embodiments of the present invention are given for purposes of illustration and description, and are not exhaustive or limit the present invention to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and enable those of ordinary skill in the art to understand the present invention and design various embodiments with various modifications suitable for specific purposes.

[0138] Embodiment 1

[0139] Please refer to Figures 1 to 8 (The orientation or positional relationship indicated in this embodiment is based on the attached Figure 1The orientation or positional relationship shown), in this embodiment, a support device is provided. The support device includes a top support frame, a first telescopic arm 14, a face support frame, and a second telescopic arm 19. The top support frame includes an eccentric support frame 1, a first support frame 2, a second support frame 3, a first oil cylinder 4, and a second oil cylinder 5. The left end of the eccentric support frame 1 is connected to the front end of the first support frame 2 through a connection structure. The connection structure includes a pin shaft 6 and a fixing plate 7. The pin shaft 6 is provided with a first groove 6.1. The first groove 6.1 is located at the upper end of the pin shaft 6. The first groove 6.1 is an annular groove. The depth of the first groove 6.1 extends along the radial direction of the pin shaft 6. The pin shaft 6 is provided with a counterbore 6.2. The counterbore 6.2 is located at the upper end of the pin shaft 6. The shape of the counterbore 6.2 is circular. The counterbore 6.2 is the inlet of grease. The pin shaft 6 is provided with four second grooves 6.3 (the second grooves 6.3 can store grease, reducing the occurrence of the situation that the pin shaft 6 runs smoothly due to insufficient grease). The four second grooves 6.3 are evenly distributed circumferentially along the side surface of the pin shaft 6. The length of the second groove 6.3 extends along the length direction of the pin shaft 6. The depth of the second groove 6.3 extends along the radial direction of the pin shaft 6. Each of the four second grooves 6.3 is provided with a through hole 6.4. The through hole 6.4 is located at the center of the second groove 6.3, and the through hole 6.4 communicates with the counterbore 6.2 (such a setting can make the grease enter the second groove 6.3 and the connection between the pin shaft 6 and the support frame through the through hole 6.4 from the counterbore 6.2, so that the pin shaft 6 rotates smoothly on the support frame). The fixing plate 7 abuts against the first groove 6.1 (such a setting is not only convenient for disassembly, but also can reduce the possibility of the pin shaft 6 being disengaged due to multiple rotations. At the same time, when the dropped impurities fall on the first groove 6.1, the rotation of the pin shaft 6 can drive the impurities to move and fall off from the second groove 6.3, reducing the possibility of impurities entering the support frame and affecting the support frame). The shape of the fixing plate 7 is a cuboid. The height of the fixing plate 7 is less than the depth of the first groove 6.1. The height of the fixing plate 7 and the depth of the first groove 6.1 are matched so that the fixing plate 7 can just be stuck into one side of the first groove 6.1. When the eccentric support frame 1 is connected to the first support frame 2 through the connection structure, the pin shaft 6 connects the eccentric support frame 1 and the first support frame 2, and the fixing plate 7 is installed above the first support frame 2 through bolts. The middle of the eccentric support frame 1 is connected to the middle of the first support frame 2 through the first oil cylinder 4. The first oil cylinder 4 includes a first oil cylinder body 4.1 and a first piston rod 4.2. The first oil cylinder body 4.1 is connected to the eccentric support frame 1 through the connection structure. At this time, the pin shaft 6 connects the first oil cylinder body 4.1 and the eccentric support frame 1, and the fixing plate 7 is installed above the eccentric support frame 1 through bolts. The first piston rod 4.2 is also connected to the first support frame 2 through the connection structure. At this time, the pin shaft 6 connects the first piston rod 4.2 and the first support frame 2, and the fixing plate 7 is installed above the first support frame 2 through bolts.The rear end of the first support bracket 2 is connected with a first wing plate 8. The first wing plate 8 is perpendicular to the first support bracket 2 (the first wing plate 8 and the first support bracket 2 are not in the same horizontal plane). The first wing plate 8 is provided with a first fixing hole 8.1 and a second fixing hole 8.2, and the first fixing hole 8.1 and the second fixing hole 8.2 are respectively located on the upper and lower sides of the first wing plate 8. The front end of the first wing plate 8 is connected with a first folding plate 10. The first folding plate 10 is movably connected with the first wing plate 8 (when the first folding plate 10 is unfolded, the first folding plate 10 and the first wing plate 8 are in the same horizontal plane). The width of the first folding plate 10 is smaller than that of the first wing plate 8. The first folding plate 10 is provided with a first fixing protrusion 10.1 that is matched with the first fixing hole 8.1. The first fixing protrusion 10.1 is provided with a pin hole for connecting a pin, and the pin is connected with a pull ring (so that when the first folding plate 10 is folded onto the first wing plate 8, the first fixing protrusion 10.1 just passes through the first fixing hole 8.1, and the operator can pass the pin through the pin hole to fix the first folding plate 10, and it is also convenient for storage; the operator can also pull the pull ring to take out the pin from the pin hole and then unfold the first folding plate 10, which is convenient to operate). The rear end of the first wing plate 8 is connected with a second folding plate 11. The second folding plate 11 is movably connected with the first wing plate 8 (when the second folding plate 11 is unfolded, the first wing plate 8 and the second folding plate 11 are in the same horizontal plane). The width of the second folding plate 11 is smaller than that of the first wing plate 8, and the total width of the first folding plate 10 and the second folding plate 11 is smaller than that of the first wing plate 8. The second folding plate 11 is provided with a second fixing protrusion 11.1 that is matched with the second fixing hole 8.2. The second fixing protrusion 11.1 is provided with a pin hole for connecting a pin, and the pin is connected with a pull ring (so that when the second folding plate 11 is folded onto the first wing plate 8, the second fixing protrusion 11.1 just passes through the second fixing hole 8.2, and the operator can pass the pin through the pin hole to fix the second folding plate 11, and it is also convenient for storage; the operator can also pull the pull ring to take out the pin from the pin hole and then unfold the second folding plate 11, which is convenient to operate). The right end of the eccentric support bracket 1 is also connected with the second support bracket 3 through a connecting structure. At this time, the pin shaft 6 connects the eccentric support bracket 1 and the second support bracket 3, and the fixing plate 7 is installed above the eccentric support bracket 1 through bolts. The middle of the eccentric support bracket 1 is connected with the middle of the second support bracket 3 through a second oil cylinder 5. The second oil cylinder 5 includes a second oil cylinder body 5.1 and a second piston rod 5.2. The second oil cylinder body 5.1 is also connected with the eccentric support bracket 1 through a connecting structure. At this time, the pin shaft 6 connects the second oil cylinder body 5.1 and the eccentric support bracket 1, and the fixing plate 7 is installed above the eccentric support bracket 1 through bolts. The second piston rod 5.2 is also connected with the second support bracket 3 through a connecting structure. At this time, the pin shaft 6 connects the second piston rod 5.2 and the second support bracket 3, and the fixing plate 7 is installed above the second support bracket 3 through bolts.The rear end of the second support bracket 3 is connected with a second wing plate 9. The second wing plate 9 is perpendicular to the second support bracket 3 (the second wing plate 9 and the second support bracket 3 are not on the same horizontal plane). The second wing plate 9 is provided with a third fixing hole 9.1 and a fourth fixing hole 9.2, and the third fixing hole 9.1 and the fourth fixing hole 9.2 are respectively located on the upper and lower sides of the second wing plate 9. The front end of the second wing plate 9 is connected with a third folding plate 12. The third folding plate 12 is movably connected with the second wing plate 9 (when the third folding plate 12 is unfolded, the third folding plate 12 and the second wing plate 9 are on the same horizontal plane). The width of the third folding plate 12 is smaller than that of the second wing plate 9. The third folding plate 12 is provided with a third fixing convex block 12.1 which is matched with the third fixing hole 9.1. The third fixing convex block 12.1 is also provided with a pin hole for connecting a pin, and the pin is connected with a pull ring (so that when the third folding plate 12 is folded onto the second wing plate 9, the third fixing convex block 12.1 just passes through the third fixing hole 9.1, and the operator can pass the pin through the pin hole to fix the third folding plate 12, and it is also convenient for storage; the operator can also pull the pull ring to take out the pin from the pin hole and then unfold the third folding plate 12, which is convenient to operate). The rear end of the second wing plate 9 is connected with a fourth folding plate 13. The fourth folding plate 13 is movably connected with the second wing plate 9 (when the fourth folding plate 13 is unfolded, the second wing plate 9 and the fourth folding plate 13 are on the same horizontal plane). The width of the fourth folding plate 13 is smaller than that of the second wing plate 9, and the total width of the third folding plate 12 and the fourth folding plate 13 is smaller than that of the second wing plate 9. The fourth folding plate 13 is provided with a fourth fixing convex block 13.1 which is matched with the fourth fixing hole 9.2. The fourth fixing convex block 13.1 is also provided with a pin hole for connecting a pin, and the pin is connected with a pull ring (so that when the fourth folding plate 13 is folded onto the second wing plate 9, the fourth fixing convex block 13.1 just passes through the fourth fixing hole 9.2, and the operator can pass the pin through the pin hole to fix the fourth folding plate 13, and it is also convenient for storage; the operator can also pull the pull ring to take out the pin from the pin hole and then unfold the fourth folding plate 13, which is convenient to operate). The rear end of the eccentric support bracket 1 is movably connected with the front end of the first telescopic arm 14 (equivalent to the top support bracket being movably connected with the telescopic end of the first telescopic arm 14). A spring is arranged at the connection part of the eccentric support bracket 1 and the first telescopic arm 14 (the spring can make the top support bracket more convenient for support. When the top support bracket touches the uneven stones in the mine, the spring can help the top support bracket automatically adjust the support direction, so as to better play the role of top support). The first telescopic arm 14 is used to control the telescoping of the top support bracket. The first telescopic arm 14 is connected with a third oil cylinder 15. The third oil cylinder 15 is located below the first telescopic arm 14, and the upper end of the third oil cylinder is connected with the first telescopic arm 14;A fourth oil cylinder 16 is provided on the first telescopic arm 14. The fourth oil cylinder 16 is located on the left and right sides of the first telescopic arm 14 and is close to the rear end of the first telescopic arm 14. The rear end of the first telescopic arm 14 is a fixed end. The fourth oil cylinder 16 is connected to the face support frame and is used to control the telescoping of the second telescopic arm 19. The face support frame includes a support mesh plate 17, a ball head 18, and a second telescopic arm 19. The support mesh plate 17 is foldable. The support mesh plate 17 includes a main mesh plate 20 and a sub-mesh plate 21. The sub-mesh plate 21 is below the main mesh plate 20. The contour shape of the main mesh plate 20 is a cuboid, and the contour shape of the sub-mesh plate 21 is also a cuboid. The main mesh plate 20 and the sub-mesh plate 21 are hinged along the length direction of the main mesh plate 20 and the sub-mesh plate 21. The length and width of the sub-mesh plate 21 are equal to those of the main mesh plate 20. The height of the sub-mesh plate 21 is half of that of the main mesh plate 20 (it can be understood that the support mesh plate 17 is folded at one-third. Such a setting not only provides a relatively large area of support after folding to meet daily needs, but also can meet the operation requirements of a larger area after unfolding). There are two hinge points on the left and right of the main mesh plate 20 and the sub-mesh plate 21. The support mesh plate 17 is provided with a contraction limit mechanism. The contraction limit mechanism includes a limit chain 22 and a limit hook 23. The limit chain 22 is provided on the sub-mesh plate 21. There are two limit chains 22 on the sub-mesh plate 21. The two limit chains 22 are respectively located at the left and right ends of the sub-mesh plate 21 and are both located on the lower side of the sub-mesh plate 21. The limit hook 23 is provided on the main mesh plate 20. There are two limit hooks 23 at the mid-width of the main mesh plate 20. The two limit hooks 23 are respectively located at the left and right ends of the main mesh plate 20 and are located at the front end of the main mesh plate 20. The two limit hooks 23 correspond to the two limit chains 22 one by one (here, one by one correspondence means that when the support mesh plate 17 contracts, the sub-mesh plate 21 folds onto the main mesh plate 20, and the two limit chains 22 respectively hook the two limit hooks 23 corresponding to the two limit chains 22, so as to fix the sub-mesh plate 21 to the main mesh plate 20, so that the sub-mesh plate 21 does not affect the storage and reduces the storage volume of the support mesh plate 17).The support net plate 17 is provided with an unfolding limiting mechanism. The unfolding limiting mechanism includes four U-shaped members 24 and two pins. Two U-shaped members 24 are located at the hinge joint on the left side of the main net plate 20 and the auxiliary net plate 21, and the other two U-shaped members 24 are located at the hinge joint on the right side of the main net plate 20 and the auxiliary net plate 21. At the hinge joint on the left side, the openings of the left and right U-shaped members 24 are respectively connected to the left and right hinge points. The left U-shaped member 24 is connected to the main net plate 20, and the right U-shaped member 24 is connected to the auxiliary net plate 21 (when the support net plate 17 unfolds, the two U-shaped members 24 at the hinge joint on the left side are on the same horizontal line. At this time, a pin is passed through the two U-shaped members 24 at the hinge joint on the left side to fix the left side of the support net plate 17). At the hinge joint on the right side, the openings of the left and right U-shaped members 24 are respectively connected to the left and right hinge points. The left U-shaped member 24 is connected to the auxiliary net plate 21, and the right U-shaped member 24 is connected to the main net plate 20 (when the support net plate 17 unfolds, the two U-shaped members 24 at the hinge joint on the right side are on the same horizontal line. At this time, a pin is passed through the two U-shaped members 24 at the hinge joint on the right side to fix the right side of the support net plate 17). When the support net plate 17 unfolds, the openings of the four U-shaped members 24 all face forward and are all on the same horizontal line (in this way, the main net plate 20 and the auxiliary net plate 21 can be fixed on the same vertical plane, preventing the auxiliary net plate 21 from rotating when unfolding, so that the auxiliary net plate 21 does not affect the operation of the entire support net plate 17 when unfolding); The ball head 18 is used to connect the support net plate 17 and the second telescopic arm 19. The ball head 18 is located between the support net plate 17 and the second telescopic arm 19. In the order from front to back, they are the support net plate 17, the ball head 18, and the second telescopic arm 19. The support net plate 17 is connected to the ball head 18 (specifically, the rear end of the main net plate 20 is connected to the front end of the ball head 18). The rear end of the ball head 18 is connected to the front end of the second telescopic arm 19 through a connecting member. An inlet is provided at the rear end of the connecting member, and the inlet is the inlet for engine oil (the operator can add engine oil into the ball head 18 from the inlet, so that the ball head 18 and the support net plate 17 rotate more smoothly, reduce the wear of the ball head 18 and the support net plate 17, and relatively extend the service life of the ball head 18 and the support net plate 17). A limiting block 25 is provided below the ball head 18. The limiting block 25 is located between the first telescopic arm 14 and the main net plate 20. The limiting block 25 is used to limit the rotation of the support net plate 17. The upper side of the limiting block 25 is connected to the ball head 18 (this connection can be abutting, welding, or other connection methods). The rear end of the limiting block 25 is welded to the front end of the second telescopic arm 19; The second telescopic arm 19 is used to control the telescoping of the support net plate 17. The second telescopic arm 19 is provided with a telescoping mechanism (the telescoping mechanism here is an oil cylinder). The telescopic end of the oil cylinder is connected to the support net plate 17 (specifically, the telescopic end of the oil cylinder is connected to the main net plate 20).;

[0140] Embodiment 2

[0141] In this embodiment, a mining device is provided. The upper end of the third oil cylinder 15 is connected to the first telescopic arm 14, the lower end of the third oil cylinder 15 is connected to the mining device, the upper end of the first telescopic arm 14 is connected to the top support frame, the lower end of the first telescopic arm 14 is connected to the mining device, and the remaining structure is the same as that in Embodiment 1.

[0142] In the description of the present invention, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0143] Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art and related fields based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention. The structures, devices, and operation methods not specifically described and explained in the present invention, unless otherwise specified and limited, are implemented according to the conventional means in the art.

Claims

1. A support device, characterized in that, Comprising: A top support frame, a first telescopic arm (14), a face support frame, and a second telescopic arm (19); The top support frame is foldable and includes an eccentric support frame (1), a first support frame (2), a second support frame (3), a first oil cylinder (4), and a second oil cylinder (5). One end of the eccentric support frame (1) is movably connected to the first support frame (2), and the other end of the eccentric support frame (1) is movably connected to the second support frame (3). The first oil cylinder (4) is used to connect the eccentric support frame (1) and the first support frame (2), and the second oil cylinder (5) is used to connect the eccentric support frame (1) and the second support frame (3); The top support frame is connected to the first telescopic arm (14), and the first telescopic arm (14) is used to control the telescoping of the top support frame; The face support frame includes a support mesh panel (17) and a second telescopic arm (19). The support mesh panel (17) is foldable and includes a main mesh panel (20) and at least one sub-mesh panel (21). The sub-mesh panel (21) is movably connected to the main mesh panel (20). The main mesh panel (20) is connected to the second telescopic arm (19), and the second telescopic arm (19) is used to control the telescoping of the support mesh panel (17); The second telescopic arm (19) is connected to the first telescopic arm (14); One end of the first support frame (2) is connected to the eccentric support frame (1), and a first wing plate (8) is connected to the other end of the first support frame (2). One end of the second support frame (3) is connected to the eccentric support frame (1), and a second wing plate (9) is connected to the other end of the second support frame (3); One end of the first wing plate (8) is connected to a first folding plate (10), and the first folding plate (10) is movably connected to the first wing plate (8). The other end of the first wing plate (8) is connected to a second folding plate (11), and the second folding plate (11) is movably connected to the first wing plate (8). One end of the second wing plate (9) is connected to a third folding plate (12), and the third folding plate (12) is movably connected to the second wing plate (9). The other end of the second wing plate (9) is connected to a fourth folding plate (13), and the fourth folding plate (13) is movably connected to the second wing plate (9); The first wing plate (8) is provided with a first fixing hole (8.1) and a second fixing hole (8.2). The first folding plate (10) is provided with a first fixing protrusion (10.1) that cooperates with the first fixing hole (8.1). The second folding plate (11) is provided with a second fixing protrusion (11.1) that cooperates with the second fixing hole (8.2). The second wing plate (9) is provided with a third fixing hole (9.1) and a fourth fixing hole (9.2). The third folding plate (12) is provided with a third fixing protrusion (12.1) that cooperates with the third fixing hole (9.1). The fourth folding plate (13) is provided with a fourth fixing protrusion (13.1) that cooperates with the fourth fixing hole (9.2).

2. The support device according to claim 1, wherein The first oil cylinder (4) includes a first oil cylinder body (4.1) and a first piston rod (4.2). The first oil cylinder body (4.1) is connected to the eccentric support frame (1) through a connection structure, and the first piston rod (4.2) is also connected to the first support frame (2) through a connection structure; the second oil cylinder (5) includes a second oil cylinder body (5.1) and a second piston rod (5.2). The second oil cylinder body (5.1) is connected to the eccentric support frame (1) through a connection structure, and the second piston rod (5.2) is also connected to the second support frame (3) through a connection structure.

3. The support device according to claim 2, characterized in that, The connection structure includes a pin shaft (6) and a fixing plate (7). One end of the pin shaft (6) is provided with a first groove (6.1), and the depth of the first groove (6.1) extends along the radial direction of the pin shaft (6). The fixing plate (7) abuts against the first groove (6.1).

4. A support device according to claim 3, characterized in that, One end of the pin shaft (6) is provided with a counterbore (6.2). The counterbore (6.2) and the first groove (6.1) are located at the same end of the pin shaft (6). The counterbore (6.2) is the inlet for grease. A second groove (6.3) is provided on the side surface of the pin shaft (6), and a through hole (6.4) is provided in the second groove (6.3). The through hole (6.4) is communicated with the counterbore (6.2).

5. A support device according to claim 1, characterized in that, The first telescopic arm (14) is connected with a third oil cylinder (15), and the third oil cylinder (15) is used to connect mining equipment.

6. The support device according to claim 1, characterized in that, The main mesh plate (20) and the auxiliary mesh plate (21) are hinged along the length direction, and a contraction limiting mechanism and an unfolding limiting mechanism are arranged between the main mesh plate (20) and the auxiliary mesh plate (21).

7. A support device according to claim 6, characterized in that, The contraction limiting mechanism includes a limiting chain (22) and a limiting hook (23). The limiting chain (22) is arranged on the auxiliary mesh plate (21), and the limiting hook (23) is arranged on the main mesh plate (20).

8. A support device according to claim 6, characterized in that, The unfolding limiting mechanism includes a U-shaped member (24) and a pin. The U-shaped member (24) is located at the hinged part of the main mesh plate (20) and the auxiliary mesh plate (21).

9. A support device according to claim 1, characterized in that, The support mesh plate (17) is connected to the second telescopic arm (19) through a ball head (18). One end of the ball head (18) is connected to the main mesh plate (20), and the other end of the ball head (18) is connected to the second telescopic arm (19).

10. A support device according to claim 9, characterized in that, A limiting block (25) is arranged at the connection part of the ball head (18), and the limiting block (25) is used to limit the rotation of the support mesh plate (17).

11. A support device according to claim 1, characterized in that, The telescopic end of the second telescopic arm (19) is connected to the support mesh plate (17), and the fixed end of the second telescopic arm (19) is connected to the first telescopic arm (14).

12. A support device according to claim 1, characterized in that, The second telescopic arm (19) is connected to the first telescopic arm (14) through a fourth oil cylinder (16), and the fourth oil cylinder (16) is located on the first telescopic arm (14).

13. A mining device, characterized in that, Including a support device according to any one of claims 1-11.

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