Hydraulic support for coal mining face of coal mine

Abstract

The utility model relates to the technical field of coal mining, and discloses a coal mining working face hydraulic support which comprises a base and further comprises an auxiliary mechanism and a rotating plate which are installed at the bottom of the base and pulleys fixedly connected to the bottom of the base, the top of the base is fixedly connected with a fixing frame, and a hydraulic rod is installed in the fixing frame; when the support is used, the angle of the baffle can be adjusted, in the process, the extending mechanism is matched with the baffle so that the protection effect of the support can be further improved when the support is used, in addition, in the moving process of the base, the cleaning plate can clean broken stones in the auxiliary frame so that the smoothness of the base in the moving process can be improved, and the service life of the support is prolonged. The problems that when part of existing supports are used, the supporting and protecting effects of auxiliary plates are poor, broken stones generated in the coal mining operation process are prone to falling off, and normal use of supporting rollers is affected are solved.

Description

Technical Field

[0001] This utility model relates to the field of coal mining technology, specifically to a hydraulic support for a coal mining face. Background Technology

[0002] During coal mining, hydraulic supports are typically used in the mine's internal roadways to support the working face, thereby reducing the risk of collapses and increasing the safety of underground operations.

[0003] A search revealed a Chinese patent document disclosing a hydraulic support for underground mining [Application No.: CN202421258690.6]. This hydraulic support for underground mining includes a base, with a rotating rod symmetrically rotatably mounted on one side of the base, and a rotating rod symmetrically rotatably mounted on the upper side of the base near the rotating rod 1. A rotating plate is rotatably mounted on the upper side of the rotating rod 1 and the rotating rod 2, and a support plate is rotatably mounted on the upper side of the rotating plate.

[0004] The support disclosed in the patent can reinforce and support the working face in the well through the auxiliary plate. However, the auxiliary plate is small in size, which makes it inconvenient to catch the gravel that falls during operation. Furthermore, the gravel that falls onto the support roller is easy to get stuck inside the support roller and affect the subsequent use of the support roller. Utility Model Content

[0005] The purpose of this utility model is to provide a hydraulic support for coal mining faces to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a hydraulic support for a coal mine working face, including a base, and further comprising:

[0007] An auxiliary mechanism and a rotating plate are installed at the bottom of the base, and pulleys are fixedly connected to the bottom of the base. A fixed frame is fixedly connected to the top of the base. A hydraulic rod is installed inside the fixed frame. A lifting plate is fixedly connected to the top of the piston rod of the hydraulic rod. A hydraulic tank is provided at the bottom of the lifting plate. The piston rod of the hydraulic tank slides through the lifting plate and is fixedly connected to a support plate. A hinge plate is hinged to the surface of the lifting plate. The hinge plate is hinged to the rotating plate. A flipping mechanism is provided on the surface of the lifting plate. A cleaning plate is fixedly connected to the surface of the base.

[0008] The system includes a cavity inside the lifting plate and a groove on the surface of the baffle. A moving mechanism is installed inside the cavity, and a single-groove pulley is installed on the surface of the moving mechanism. A smooth rod slides through the surface of the lifting plate. A long rod is fixedly connected to the top of the lifting plate, and a baffle is rotatably connected to the surface of the long rod. A limit groove is opened on the surface of the baffle. One end of the smooth rod is hinged to a limit plate that contacts the inner wall of the limit groove. An extension mechanism is installed inside the groove. A U-shaped plate is fixedly connected to the bottom of the hydraulic tank, and a drive mechanism is installed inside the U-shaped plate.

[0009] Preferably, the auxiliary mechanism includes an auxiliary frame, an electric telescopic rod, and a push plate. The top of the auxiliary frame is in contact with the bottom of the base. The electric telescopic rod is fixedly connected to the inner surface of the auxiliary frame. The push plate is fixedly connected to the bottom of the base. One end of the piston rod of the electric telescopic rod is fixedly connected to the surface of the push plate. The surface of the pulley is in contact with the inner wall of the auxiliary frame. The surface of the cleaning plate is slidably connected to the inner wall of the auxiliary frame.

[0010] Preferably, the flipping mechanism includes an electric push rod, a connecting plate, and a flipping plate. The electric push rod is fixedly connected to the surface of the hydraulic tank, the flipping plate is rotatably connected to the surface of the long rod, the connecting plate is fixedly connected to the surface of the flipping plate, and the piston rod of the electric push rod is hinged to the surface of the connecting plate.

[0011] Preferably, the moving mechanism includes a rotating shaft, a gear ring, a gear plate, and a moving plate. The rotating shaft rotatably passes through the bottom of the lifting plate. The gear ring is fixedly sleeved on the surface of the rotating shaft. The surface of the gear plate is slidably connected to the inner wall of the cavity. The gear plate meshes with the gear ring. The moving plate is fixedly connected to the surface of the gear plate. One end of the optical rod is fixedly connected to the surface of the moving plate. The single-groove belt pulley is fixedly sleeved on the surface of the rotating shaft.

[0012] Preferably, the extension mechanism includes an extension plate, a lead screw, and a collar. The surfaces of the extension plate and the lead screw are slidably connected to the inner wall of the groove. The lead screw is fixedly connected to the surface of the extension plate, and the collar is threaded onto the surface of the lead screw and contacts the surface of the baffle.

[0013] Preferably, the drive mechanism includes a motor, a drive shaft, and a double-groove pulley. The motor is fixedly connected to the bottom of the inner wall of the U-shaped plate, the drive shaft is fixedly connected to the output shaft of the motor, the double-groove pulley is fixedly sleeved on the surface of the drive shaft, and the double-groove pulley is connected to the single-groove pulley via belt drive.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] In use, this utility model can move the guide rod through the cooperation of the moving mechanism, guide rod, drive mechanism and single groove belt pulley. The angle of the baffle can be adjusted by the push of the limiting plate. In this process, the extension mechanism and the baffle can further increase the protective effect of the support during use, reduce the impact of gravel on the movement of the base. During the movement of the base, the cleaning plate can also clean the gravel inside the auxiliary frame to increase the smoothness of the base movement. This solves the problem that some existing supports have poor auxiliary plate support and protection effect, and gravel generated during coal mining operations is easy to fall and affect the normal use of the support roller. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a three-dimensional structural diagram of the lifting plate of this utility model cut open;

[0018] Figure 3 This is a three-dimensional structural diagram of the auxiliary frame cut open according to the present invention;

[0019] Figure 4 This is a partial three-dimensional structural schematic diagram of the present invention;

[0020] Figure 5 This is a three-dimensional structural diagram of the present invention after the baffle is cut open and the extension mechanism is moved;

[0021] Figure 6 This is a three-dimensional structural diagram showing the lifting plate, moving mechanism, guide rod, single-groove belt pulley, and drive mechanism working together in this utility model, with the lifting plate cut open.

[0022] In the diagram: 1. Base; 2. Auxiliary mechanism; 201. Auxiliary frame; 202. Electric telescopic rod; 203. Push plate; 3. Cleaning plate; 4. Pulley; 5. Fixing frame; 6. Hydraulic rod; 7. Lifting plate; 8. Hydraulic tank; 9. Support plate; 10. Hinge plate; 11. Rotating plate; 12. Tilting mechanism; 121. Electric push rod; 122. Connecting plate; 123. Tilting plate; 13. Moving mechanism; 131. Rotating rod Shaft; 132, Gear ring; 133, Gear plate; 134, Moving plate; 14, Smooth rod; 15, Limiting plate; 16, Long rod; 17, Baffle; 18, Limiting groove; 19, Extension mechanism; 191, Extension plate; 192, Lead screw; 193, Collar; 20, Sliding groove; 21, U-shaped plate; 22, Drive mechanism; 221, Motor; 222, Drive shaft; 223, Double groove pulley; 23, Single groove pulley. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-6 As shown, a hydraulic support for a coal mining face includes a base 1. An auxiliary mechanism 2 and a rotating plate 11 are installed at the bottom of the base 1 and are fixedly connected to a pulley 4. A fixed frame 5 is fixedly connected to the top of the base 1. A hydraulic rod 6 is installed inside the fixed frame 5. A lifting plate 7 is fixedly connected to the top of the piston rod of the hydraulic rod 6. A hydraulic tank 8 is provided at the bottom of the lifting plate 7. The piston rod of the hydraulic tank 8 slides through the lifting plate 7 and is fixedly connected to a support plate 9. The bottom of the support plate 9 contacts the top of the lifting plate 7. A hinge plate 10 is hinged to the surface of the lifting plate 7, and the surface of the hinge plate 10 is hinged to the rotating plate 11. A tilting mechanism 12 is provided on the surface of the lifting plate 7, which can increase the protection area of ​​the lifting plate 7. A cavity is opened inside the lifting plate 7, and a moving mechanism 13 is provided inside the cavity. A single-groove belt pulley 23 is provided on the surface of the moving mechanism 13. A smooth rod 14 slides through the surface of the lifting plate 7. One end of the smooth rod 14 is hinged to a limiting plate 15. Long rods 16 are fixedly connected to both sides of the top of the lifting plate 7. A baffle 17 is rotatably connected to the surface of the long rods 16. Limit grooves 18 are opened on both sides of the surface of the baffle 17. The surface of the limiting plate 15 contacts the inner wall of the limiting groove 18. When the smooth rod 14 moves, the limiting plate 15 moves inside the limiting groove 18 to adjust the angle of the baffle 17. The baffle 17 can increase the support area of ​​the support when it is in use. A sliding groove 20 is opened on the surface of the baffle 17. An extension mechanism 19 is installed inside the sliding groove 20. The extension mechanism 19 can catch stones falling from the top of the mine wall to increase the safety of the support when it is in use. A U-shaped plate 21 is fixedly connected to the bottom of the hydraulic tank 8. A drive mechanism 22 is installed inside the U-shaped plate 21.

[0025] The auxiliary mechanism 2 includes an auxiliary frame 201, an electric telescopic rod 202, and a push plate 203. The top of the auxiliary frame 201 is in contact with the bottom of the base 1. The electric telescopic rod 202 is fixedly connected to the inner surface of the auxiliary frame 201. The push plate 203 is fixedly connected to the bottom of the base 1. One end of the piston rod of the electric telescopic rod 202 is fixedly connected to the surface of the push plate 203. The surface of the pulley 4 is in contact with the inner wall of the auxiliary frame 201. A cleaning plate 3 is fixedly connected to the surface of the base 1. The surface of the cleaning plate 3 is slidably connected to the inner wall of the auxiliary frame 201. When the operator starts the electric telescopic rod 202, the base 1 can be moved through the push plate 203. At this time, the pulley 4 and the auxiliary frame 201 cooperate to increase the smoothness of the base 1 when moving. During this process, the cleaning plate 3 can clean the debris inside the auxiliary frame 201 to ensure the normal use of the pulley 4.

[0026] The tilting mechanism 12 includes an electric push rod 121, a connecting plate 122, and a tilting plate 123. The electric push rod 121 is fixedly connected to the surface of the hydraulic tank 8, the tilting plate 123 is rotatably connected to the surface of the long rod 16, and the connecting plate 122 is fixedly connected to the surface of the tilting plate 123. The piston rod of the electric push rod 121 is hinged to the surface of the connecting plate 122. When the operator starts the electric push rod 121, the piston rod of the electric push rod 121 can push and drive the connecting plate 122 and the tilting plate 123 to rotate, so that the tilting plate 123 can support the top of the mine.

[0027] The moving mechanism 13 includes a rotating shaft 131, a gear ring 132, a gear plate 133, and a moving plate 134. The rotating shaft 131 rotates through the bottom of the lifting plate 7. The gear ring 132 is fixedly sleeved on the surface of the rotating shaft 131. The surface of the gear plate 133 is slidably connected to the inner wall of the cavity. The gear plate 133 meshes with the gear ring 132. The moving plate 134 is fixedly connected to the surface of the gear plate 133. One end of the smooth rod 14 is fixedly connected to the surface of the moving plate 134. The single-groove belt pulley 23 is fixedly sleeved on the surface of the rotating shaft 131. When the single-groove belt pulley 23 rotates, the rotating shaft 131 drives the gear ring 132 to rotate. The gear plate 133 can then drive the smooth rod 14 to move through the moving plate 134, so as to adjust the angle of the baffle 17.

[0028] The extension mechanism 19 includes an extension plate 191, a lead screw 192, and a collar 193. The surfaces of the extension plate 191 and the lead screw 192 are slidably connected to the inner wall of the slide groove 20. The lead screw 192 is fixedly connected to the surface of the extension plate 191. The collar 193 is threaded onto the surface of the lead screw 192 and contacts the surface of the baffle 17. After the operator adjusts the position of the extension plate 191, the collar 193 can be turned. The collar 193 moves in cooperation with the lead screw 192 and contacts the baffle 17 to fix the position of the extension plate 191 for subsequent use in receiving stones above.

[0029] The drive mechanism 22 includes a motor 221, a drive shaft 222, and a double-groove pulley 223. The motor 221 is fixedly connected to the bottom of the inner wall of the U-shaped plate 21. The drive shaft 222 is fixedly connected to the output shaft of the motor 221. The top of the drive shaft 222 is rotatably connected to the bottom of the hydraulic tank 8. The double-groove pulley 223 is fixedly sleeved on the surface of the drive shaft 222. The double-groove pulley 223 and the single-groove pulley 23 are connected by belt drive. When the operator starts the motor 221, the drive shaft 222 drives the double-groove pulley 223 to rotate. At this time, under the connection of the belt, the single-groove pulley 23 can rotate accordingly.

[0030] Working principle: After the operator moves the support to the designated position underground, they can activate the hydraulic rod 6, causing the lifting plate 7 to rise. The hinge plate 10 and rotating plate 11 also rotate accordingly. The operator can then activate the hydraulic tank 8, which lifts the support plate 9, allowing it to be used on uneven working surfaces. This increases the support effectiveness of the support for the underground working face during use. This is a mature existing technology and will not be elaborated upon here. During this process, the operator can activate the electric push rod 121, which, through the cooperation of the connecting plate 122 and the tilting plate 123, rotates the tilting plate 123, thereby increasing the protective area of ​​the lifting plate 7. Furthermore, if it falls during this process... When there are many stones, the staff can start the motor 221. When the drive shaft 222 drives the double groove belt pulley 223 to rotate, the single groove belt pulley 23 can drive the rotating shaft 131 to rotate under the connection of the belt. The gear ring 132 rotates accordingly and cooperates with the gear plate 133 to drive the moving plate 134 to move. The smooth rod 14 then pushes the limiting plate 15. The limiting plate 15 cooperates with the limiting groove 18 to adjust the angle of the baffle 17 so that the baffle 17 can better support the falling stones, thereby increasing the protective effect of the support. In addition, the staff can also adjust the position of the extension mechanism 19 according to the working surface to increase the protective effect of the baffle 17.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hydraulic support for a coal face, comprising a base (1), characterised in that, Also include: The bottom of the auxiliary mechanism (2) and the rotating plate (11) and fixedly connected to the bottom of the pulley (4) of the base (1), the top of the base (1) is fixedly connected with the fixed frame (5), the inside of the fixed frame (5) is provided with hydraulic rod (6), the top of the hydraulic rod (6) piston rod is fixedly connected with the lifting plate (7), the bottom of the lifting plate (7) is provided with hydraulic tank (8), the piston rod of the hydraulic tank (8) slides through the lifting plate (7) and is fixedly connected with the support plate (9), the surface of the lifting plate (7) is hinged with the hinge plate (10), the hinge plate (10) is hinged with the rotating plate (11), the surface of the lifting plate (7) is provided with turnover mechanism (12), the surface of the base (1) is fixedly connected with the cleaning plate (3); The cavity in the lifting plate (7) and the chute (20) on the surface of the baffle (17) are provided with moving mechanism (13), the surface of the moving mechanism (13) is provided with single groove belt disc (23), the surface of the lifting plate (7) is slidably connected with the light rod (14), the top of the lifting plate (7) is fixedly connected with the long rod (16), the surface of the long rod (16) is rotatably connected with the baffle (17), the surface of the baffle (17) is provided with limiting groove (18), one end of the light rod (14) is hinged with the limiting plate (15) in contact with the inner wall of the limiting groove (18), the inside of the chute (20) is provided with extension mechanism (19), the bottom of the hydraulic tank (8) is fixedly connected with the U-shaped plate (21), the inside of the U-shaped plate (21) is provided with driving mechanism (22).

2. The hydraulic support for a coal face according to claim 1, characterised in that: The auxiliary mechanism (2) includes auxiliary frame (201), electric telescopic rod (202) and push plate (203), the top of the auxiliary frame (201) is in contact with the bottom of the base (1), the electric telescopic rod (202) is fixedly connected to the inner surface of the auxiliary frame (201), the push plate (203) is fixedly connected to the bottom of the base (1), one end of the piston rod of the electric telescopic rod (202) is fixedly connected to the surface of the push plate (203), the surface of the pulley (4) is in contact with the inner wall of the auxiliary frame (201), the surface of the cleaning plate (3) is slidably connected with the inner wall of the auxiliary frame (201).

3. The hydraulic support for a coal face according to claim 1, characterised in that: The turnover mechanism (12) includes electric push rod (121), connecting plate (122) and turnover plate (123), the electric push rod (121) is fixedly connected to the surface of the hydraulic tank (8), the turnover plate (123) is rotatably connected to the surface of the long rod (16), the connecting plate (122) is fixedly connected to the surface of the turnover plate (123), the piston rod of the electric push rod (121) is hinged with the surface of the connecting plate (122).

4. The hydraulic support for a coal face according to claim 1, characterised in that: Said moving mechanism (13) comprises a rotating shaft (131), a gear ring (132), a gear plate (133) and a moving plate (134), one end of the rotating shaft (131) penetrates through the bottom of the lifting plate (7) and rotates, the gear ring (132) is fixedly sleeved on the surface of the rotating shaft (131), the surface of the gear plate (133) is slidably connected with the inner wall of the cavity, the gear plate (133) is engaged with the gear ring (132), the surface of the moving plate (134) is fixedly connected with the surface of the gear plate (133), one end of the light rod (14) is fixedly connected with the surface of the moving plate (134), and the single-groove belt disc (23) is fixedly sleeved on the surface of the rotating shaft (131).

5. The hydraulic support for a coal face according to claim 1, characterised in that: Said extending mechanism (19) comprises an extending plate (191), a lead screw (192) and a sleeve ring (193), the surfaces of the extending plate (191) and the lead screw (192) are slidably connected with the inner wall of the sliding groove (20), the lead screw (192) is fixedly connected with the surface of the extending plate (191), and the sleeve ring (193) is threadedly sleeved on the surface of the lead screw (192) and is in contact with the surface of the baffle (17).

6. The hydraulic support for a coal face according to claim 1, characterised in that: Said driving mechanism (22) comprises a motor (221), a driving shaft (222) and a double-groove belt disc (223), the motor (221) is fixedly connected with the bottom of the inner wall of the U-shaped plate (21), the driving shaft (222) is fixedly connected with the output shaft of the motor (221), the double-groove belt disc (223) is fixedly sleeved on the surface of the driving shaft (222), and the double-groove belt disc (223) is drivingly connected with the single-groove belt disc (23) through a belt.

Images