Supporting and protecting device for coal mining

Abstract

The utility model provides a coal mining support protection device which comprises a main body rectangular frame, two support plates, a support driving mechanism and a roof contact device, the main body rectangular frame comprises a top plate, a bottom plate and two fixing plates, the two fixing plates are vertically and fixedly connected between the top plate and the bottom plate to form a rectangular frame in a surrounding mode, the fixing plates are horizontally connected with connecting plates in a sliding mode, and the connecting plates are connected with the support driving mechanism. The supporting driving mechanism comprises a pneumatic motor, push plates, a limiting rod and a lifting block, a threaded rod is fixedly connected to an output shaft of the pneumatic motor, the limiting rod is fixedly connected to the inner side face of the fixing plate, the other end of the limiting rod is slidably connected to the lifting block, and the push plates are hinged to the two sides of the lifting block; the supporting and protecting device has the advantages that the supporting and protecting device can quickly form supporting and protecting, and workers can conveniently carry out forepoling operation or build temporary supporting and protecting under the supporting and protecting device.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of coal mine underground equipment, especially relates to a coal mining support protection device for temporary use. BACKGROUND

[0002] In coal mine production operation, the stability of the coal mine roadway top has been the key factor concerning safety production. Due to the complex and diverse geological conditions of the coal mine underground, there are many unstable conditions such as rock crushing, uneven stratum pressure and roof fissure, which makes the coal mine roadway top face high collapse risk, seriously threatens the life safety of the underground operating personnel, and easily interferes with the normal and orderly progress of the mining work.

[0003] The existing coal mine support device support fixing mode is relatively single, lacks flexibility, and the hydraulic support is mostly used to form support mining, but in the stable roadway support engineering establishment in the coal mining production, it is often necessary to operate without top protection, in which case the front probe beam of the equipment or temporary support is often used for operation protection, but the front probe beam support distance is often short and cannot meet the construction demand, the temporary support is time-consuming and labor-intensive, and the workers need to operate without support, the construction risk is high, and even serious production accidents can be caused. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a coal mining support protection device, which can quickly form support and facilitate the front exploration operation of workers or the temporary support built thereon.

[0005] To achieve the above-mentioned purpose, the technical scheme provided by the utility model is a coal mining support protection device, which comprises a main rectangular frame, two support plates, a support driving mechanism and a roof connecting device.

[0006] The main rectangular frame comprises a top plate, a bottom plate and two fixed plates, the two fixed plates are vertically and fixedly connected between the top plate and the bottom plate to form a rectangular frame, a connecting plate is horizontally and slidably connected to the fixed plate, and the outer side end of the two connecting plates is vertically and fixedly connected with the support plate.

[0007] The support driving mechanism comprises a pneumatic motor, a push plate, a limiting rod and a lifting block, the pneumatic motor is fixedly connected to the middle part of the top surface of the bottom plate, a threaded rod is fixedly connected to the output shaft of the pneumatic motor, the limiting rod is fixedly connected to the inner side surface of the fixed plate, the other end of the limiting rod is slidably connected to the lifting block, the lifting block is located directly above the pneumatic motor and is limited to move up and down along the limiting rods on both sides, the push plate is hinged to the lifting block on both sides, the other end of the push plate is hinged to the inner side end of the connecting plate, a threaded hole is arranged in the middle part of the lifting block, and the threaded rod is matched with the threaded hole.

[0008] The top-joining device comprises a pneumatic telescopic rod, a telescopic connecting rod, a lifting seat, a supporting block, the pneumatic telescopic rod is fixedly connected to the bottom surface of the top plate of the main rectangular frame, the front end of the pneumatic telescopic rod penetrates through the top plate of the main rectangular frame and is fixedly connected to the lifting seat, the top surface of the lifting seat is fixedly connected to the supporting block, the top surface of the supporting block is arc-shaped, the telescopic connecting rod is installed on the top surface of the top plate of the main rectangular frame and is located on the left and right sides of the pneumatic telescopic rod, and the upper end of the telescopic connecting rod is fixedly connected to the bottom surface of the lifting seat.

[0009] The limiting rod is L-shaped, the longitudinal section is located on the two sides of the threaded rod, and the transverse section is located above the connecting plate, the lower end of the longitudinal section of the limiting rod is provided with a stopper for limiting the lifting block.

[0010] The inner side end surface of the connecting plate is fixedly connected with an expansion plate for expanding the width of the connecting plate, the expansion plate is hingedly connected with the push plate, and the hinge connection is located at the upper portion of the expansion plate.

[0011] The top end of the threaded rod is provided with a limiting nut.

[0012] When the lifting block is located at the lowest position, the outer side surface of the supporting plate is located in the main rectangular frame.

[0013] The top-joining adjustment wing plate comprises a telescopic frame, an elastic mechanism and a rubber block, the lifting seat is a hollow rectangular frame with open two ends, the telescopic frame is slidably connected to the two ends of the lifting seat, the telescopic frame is an L-shaped plate, the longitudinal section of the telescopic frame is located on the outer side of the lifting seat, the bottom surfaces of the two ends of the lifting seat are respectively fixedly connected with elastic mechanism mounting seats, the elastic mechanism mounting seats are fixedly connected with the elastic mechanism, the other end of the elastic mechanism is fixedly connected with the corresponding longitudinal section of the telescopic frame, the elastic mechanism comprises a damper and a spring, the spring is sleeved outside the damper, and the rubber block is installed on the upper portion of the bending portion of the telescopic frame and is arc-shaped at the top end.

[0014] When the elastic mechanism is not subjected to force, the outer side surface of the telescopic frame exceeds the top plate of the main rectangular frame by 20-50 cm.

[0015] The utility model provides a beneficial effect can realize quick support, form top-joining cross beam fast, be convenient for worker when operating in no top, form temporary stable support, can build temporary support or other work fast and safely, and can recycle and repeatedly use. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic view of the utility model structure;

[0017] Figure 2 It is a three-dimensional schematic view of the top support mechanism of the utility model;

[0018] Figure 3 It is a top view three-dimensional schematic view of the top support mechanism of the utility model.

[0019] Figure 4 It is a three-dimensional schematic view of the side support mechanism of the utility model;

[0020] Figure 5 It is a three-dimensional schematic view of the utility model Figure 4 It is a three-dimensional schematic view of the utility model

[0021] In the figure: 1, bottom plate; 2, support driving mechanism; 21, push plate; 22, threaded rod; 23, limiting rod; 24, support plate; 25, connecting plate; 26, expansion plate; 27, pneumatic motor; 28, lifting block; 3, fixed plate; 4, top connecting device; 41, pneumatic telescopic rod; 42, top plate; 43, telescopic connecting rod; 44, elastic mechanism mounting seat; 45, lifting seat; 46, support block; 47, damper; 48, spring; 49, telescopic frame; 410, rubber block. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0023] As Figures 1-5 shown, a kind of coal mine exploitation support protection device, including main body rectangular frame, two support plates 24, support driving mechanism 2, top connecting device 4,

[0024] Main body rectangular frame, including top plate 42, bottom plate 1, two fixed plates 3, two fixed plates 3 are vertically fixedly connected between top plate 42, bottom plate 1, and form a rectangular frame, and fixed plate 3 is horizontally slidably connected with connecting plate 25, and the outer side end of two connecting plates 25 is vertically fixedly connected with support plate 24, and main body rectangular frame can be installed sealing plate in front and back side in actual use, can play the role of protection internal component, and internal structure is not drawn in drawing for showing.

[0025] The support driving mechanism comprises a pneumatic motor 27, a push plate 21, a limiting rod 23 and a lifting block 28. The pneumatic motor is fixedly connected to the middle part of the top surface of the bottom plate. A threaded rod 22 is fixedly connected to the output shaft of the pneumatic motor. The limiting rod 23 is fixedly connected to the inner side surface of the fixed plate 3. The limiting rod 23 is L-shaped. The longitudinal section is located on both sides of the threaded rod 22. The transverse section is located above the connecting plate 25. The lower end of the longitudinal section of the limiting rod is provided with a stopper for limiting the lifting block and preventing the lifting block 28 from being separated from the limiting rod. The lifting block 28 is slidingly connected to the longitudinal section of the limiting rod. The lifting block 28 is located directly above the pneumatic motor and is limited to move up and down along the limiting rods on both sides. The lifting block 28 is hingedly connected to the push plate on both sides. The other end of the push plate 21 is hingedly connected to the upper part of the inner side end of the connecting plate 25. The push plate is in a vertical state when the pneumatic motor is in the initial position. A threaded hole is arranged in the middle part of the lifting block. The threaded rod 22 is matched with the threaded hole. The top end of the threaded rod is provided with a limiting nut. If the width of the connecting rod is not enough, an expansion plate is fixedly connected to the inner side end surface of the connecting plate in order to facilitate the hinge connection of the push plate. The width of the expansion connecting plate is expanded.

[0026] When the lifting block is located at the lowest position, the outer side surface of the support plate is located in the main body rectangular frame. This facilitates the transportation before use, reduces the volume and improves the regularity, and facilitates the operation of workers.

[0027] The roof connecting device 4 comprises a pneumatic telescopic rod 41, a telescopic connecting rod 43, a lifting seat 45, a support block 46 and a roof connecting adjusting wing plate. The pneumatic telescopic rod 41 is fixedly connected to the bottom surface of the top plate 42 of the main body rectangular frame and is arranged in the frame to prevent dust and protect. The front end of the pneumatic telescopic rod 41 penetrates out of the top plate of the main body rectangular frame and is fixedly connected to the lifting seat 45. The top surface of the lifting seat 45 is fixedly connected to the arc-shaped support block 46. The arc shape is beneficial to the uneven roadway roof of the top plate. The telescopic connecting rod 43 is installed on the top surface of the top plate of the main body rectangular frame and is located on the left and right sides of the pneumatic telescopic rod 41. The upper end of the telescopic connecting rod 43 is fixedly connected to the bottom surface of the lifting seat 45 to ensure the stability of the lifting block. The roof connecting adjusting wing plate comprises a telescopic frame 49, an elastic mechanism and a rubber block 410. The lifting seat 45 is a hollow rectangular frame with open ends. The two ends of the lifting seat 45 are slidingly connected to the telescopic frame 49. The telescopic frame 49 is L-shaped. The longitudinal section is located on the outer side of the lifting seat. The bottom surfaces of the two ends of the lifting seat are respectively fixedly connected to the elastic mechanism mounting seat 44. The elastic mechanism mounting seat 44 is fixedly connected to the elastic mechanism. The other end of the elastic mechanism is fixedly connected to the corresponding longitudinal section of the telescopic frame. The elastic mechanism comprises a damper 47 and a spring 48. The spring is sleeved outside the damper. The rubber block 410 is installed on the upper part of the bending part of the telescopic frame. The top end is arc-shaped.

[0028] In use, the device is transported to an unsupported area by a front beam or a transport track vehicle, the device is placed in the roof contact area by the lifting device, then the pneumatic motor 27 is started, the rotation of the output end of the pneumatic motor 27 can drive the threaded rod 22 to rotate, the rotation of the threaded rod 22 can drive the lifting block 28 to move up and down through the two limiting rods 23, the upward movement of the lifting block 28 can drive the two connecting plates 25 to extend to both sides through the two push plates 21, the extension of the two connecting plates 25 to both sides can drive the two support plates 24 to move to the sidewall of the roadway, until the support plates 24 contact the sidewall of the roadway and form a certain pressure, so that the device is fixed on the roof of the roadway, then the lifting seat 45 is moved upward by starting the pneumatic telescopic rod 41, the lifting seat 45 drives the support block 46 to move upward synchronously, the upward movement of the support block 46 can contact the roof of the coal mine roadway, thereby supporting the roof of the coal mine roadway, the upward movement of the lifting seat 45 can be assisted by the two telescopic frames 49 to support the roof, if the roof of the roadway is narrowed, the telescopic frames 49 can be inserted into the lifting seat 45, thereby ensuring that the rubber block 410 on the telescopic frame 49 contacts the roof.

Claims

1. A coal mining with support protection device, characterized in that, Including main body rectangular frame, two support plates, support driving mechanism, top connecting device, The main body rectangular frame includes a top plate, a bottom plate and two fixed plates which are vertically and fixedly connected between the top plate and the bottom plate to form a rectangular frame. A connecting plate is horizontally and slidably connected to the fixed plate. The outer side ends of the two connecting plates are vertically and fixedly connected with the support plates. The support driving mechanism includes a pneumatic motor, a push plate, a limiting rod and a lifting block. The pneumatic motor is fixedly connected to the middle part of the top surface of the bottom plate. A threaded rod is fixedly connected to the output shaft of the pneumatic motor. The inner side surface of the fixed plate is fixedly connected with the limiting rod. The other end of the limiting rod is slidably connected to the lifting block, so that the lifting block is located directly above the pneumatic motor and is limited to move up and down along the limiting rods on both sides. The lifting block is hingedly connected with the push plate on both sides. The other end of the push plate is hingedly connected with the inner side end of the connecting plate. A threaded hole is arranged in the middle part of the lifting block. The threaded rod is matched with the threaded hole. The top connecting device includes a pneumatic telescopic rod, a telescopic connecting rod, a lifting seat and a support block. The pneumatic telescopic rod is fixedly connected to the bottom surface of the top plate of the main body rectangular frame. The front end of the pneumatic telescopic rod penetrates out of the top plate of the main body rectangular frame and is fixedly connected with the lifting seat. The top surface of the lifting seat is fixedly connected with the support block. The top surface of the support block is arc-shaped. The telescopic connecting rod is installed on the top surface of the top plate of the main body rectangular frame and is located on the left and right sides of the pneumatic telescopic rod. The upper end of the telescopic connecting rod is fixedly connected with the bottom surface of the lifting seat.

2. A coal mining support protection device according to claim 1, characterised in that, The limiting rod is L-shaped. The longitudinal section is located on both sides of the threaded rod. The transverse section is located above the connecting plate. The lower end of the longitudinal section of the limiting rod is provided with a stop block for limiting the lifting block.

3. The coal mining support protection device of claim 1, wherein, The inner side end surface of the connecting plate is fixedly connected with an expansion plate for expanding the width of the connecting plate. The expansion plate is hingedly connected with the push plate. The hinge is located at the upper part of the expansion plate.

4. The coal mining support protection device of claim 1, wherein, The top end of the threaded rod is provided with a limiting nut.

5. The coal mining support protection device of claim 1, wherein, When the lifting block is located at the lowest position, the outer side surface of the support plate is located in the main body rectangular frame.

6. The coal mining support protection device of claim 1, wherein, The top connecting device further includes a top connecting adjustment wing plate. The top connecting adjustment wing plate includes a telescopic frame, an elastic mechanism and a rubber block. The lifting seat is a hollow rectangular frame with both ends open. The telescopic frame is slidably connected to the two ends of the lifting seat. The telescopic frame is L-shaped plate. The longitudinal section is located on the outer side of the lifting seat. The bottom surface of the lifting seat is fixedly connected with an elastic mechanism mounting seat. The elastic mechanism is fixedly connected to the elastic mechanism mounting seat. The other end of the elastic mechanism is fixedly connected with the corresponding longitudinal section of the telescopic frame. The elastic mechanism includes a damper and a spring. The spring is sleeved outside the damper. The rubber block is installed on the upper part of the bending part of the telescopic frame. The top end is arc-shaped.

7. A coal mining support protection device according to claim 6, characterised in that, When the elastic mechanism is not stressed, the outer side surface of the telescopic frame exceeds the top plate of the main body rectangular frame by 20-50 cm.

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