A mine roadway support device

Abstract

This utility model relates to the field of coal mine exploration and mining technology, specifically disclosing a mining roadway support device, including a base and a U-shaped plate fixed on the base. Two sets of lifting mechanisms are arranged opposite each other on both sides of the U-shaped plate, and an arc-shaped top plate is provided above the lifting mechanisms. Two sets of support mechanisms are arranged opposite each other on both sides of the base. Each support mechanism includes a fixed plate fixed on the base, and multiple sets of limiting rods and second threaded sleeves are installed opposite each other on the fixed plate. A second screw is installed inside the second threaded sleeve, a support handwheel is fixed to one end of the second screw, and a support plate is fixed to one end of the second threaded sleeve. Through the arrangement of the support mechanisms, rotating the support handwheel drives the second screw to rotate. Due to the threaded engagement between the second threaded sleeve and the second screw, the second threaded sleeve slides on the fixed plate, thereby moving the support plate and supporting the side wall, preventing falling rocks from the side wall and causing injury to workers sheltering inside the support device.

Description

Technical Field

[0001] This utility model relates to the field of coal mine exploration and mining technology, and in particular to a support device for mining roadways. Background Technology

[0002] Coal mining is primarily underground, requiring the excavation of numerous tunnels. Tunnel support is crucial for maintaining tunnel access and stabilizing the surrounding rock, essential for mine construction and production. The fundamental purpose of tunnel support is to mitigate and reduce rock movement, preventing excessive narrowing of the tunnel cross-section and preventing the collapse of loosened or damaged rock. In existing technologies, most support devices primarily focus on securing the top of the structure, neglecting the support of the side walls. When a tunnel collapses or rocks fall, rocks can also fall from the side walls, potentially injuring workers sheltering within the support structure. Utility Model Content

[0003] The purpose of this utility model is to provide a mining roadway support device to solve the above-mentioned problems.

[0004] This utility model achieves the above objectives through the following technical solutions:

[0005] A mining roadway support device includes a base and a U-shaped plate fixed to the base. Two sets of lifting mechanisms are arranged opposite each other on both sides of the U-shaped plate. Each lifting mechanism includes two sets of transmission boxes fixed to the base, a transmission shaft installed between the transmission boxes, a turbine fixedly installed on the transmission shaft, a worm gear opposite each other above the turbine, a lifting handwheel fixed to one end of the worm gear, a sliding frame opposite each other on the transmission box, a first screw installed inside the sliding frame, a first bevel gear fixed opposite each other at both ends of the transmission shaft, a second bevel gear fixed to the lower end of the first screw, a first threaded sleeve sleeved on the outside of the first screw, an arc-shaped top plate above the lifting mechanism, and two sets of support mechanisms opposite each other on both sides of the base. Each support mechanism includes a fixed plate fixed to the base, multiple sets of limit rods and a second threaded sleeve opposite each other installed on the fixed plate, a second screw installed inside the second threaded sleeve, a support handwheel fixed to one end of the second screw, and a support plate fixed to one end of the second threaded sleeve.

[0006] Further configuration: the drive shaft is rotatably connected to the transmission box, the worm gear and the worm mesh with each other, the worm gear passes through and is rotatably connected to the U-shaped plate, the first screw passes through and is rotatably connected to the transmission box, and the first bevel gear and the second bevel gear mesh with each other.

[0007] Further configuration: The first threaded sleeve and the first screw are connected by a thread, and the first threaded sleeve is slidably connected to the sliding frame.

[0008] Further configuration: The arc-shaped top plate is fixedly connected to the first threaded sleeve.

[0009] Further configuration: The limiting rod and the second threaded sleeve are both slidably connected to the fixed plate. The second threaded sleeve and the second screw are connected by a thread. The second screw passes through the U-shaped plate and is rotatably connected to the U-shaped plate. The support plate is fixedly connected to the limiting rod.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] By rotating the support handwheel, the second screw is driven to rotate. Due to the threaded engagement between the second threaded sleeve and the second screw, the second threaded sleeve slides on the fixed plate, thereby driving the support plate to move and thus supporting the side wall to prevent stones from falling from the side wall and causing injury to the workers hiding inside the support device. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is an isometric view of a mining roadway support device described in this utility model;

[0014] Figure 2 This is a full sectional view of a mining roadway support device described in this utility model;

[0015] Figure 3 yes Figure 2 A magnified view of part A;

[0016] Figure 4 This is a cross-sectional view of the lifting mechanism of a mining roadway support device according to the present invention;

[0017] Figure 5 yes Figure 4 A magnified view of section B.

[0018] The annotations in the attached figures are explained as follows:

[0019] 1. Base; 2. U-shaped plate; 3. Lifting mechanism; 301. Transmission box; 302. Transmission shaft; 303. Turbine; 304. Worm gear; 305. Lifting handwheel; 306. Sliding frame; 307. First screw; 308. First bevel gear; 309. Second bevel gear; 310. First threaded sleeve; 4. Arc-shaped top plate; 5. Support mechanism; 51. Fixed plate; 52. Limiting rod; 53. Second threaded sleeve; 54. Second screw; 55. Support handwheel; 56. Support plate. Detailed Implementation

[0020] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] The present invention will be further described below with reference to the accompanying drawings:

[0023] like Figures 1-5 As shown, a mining roadway support device includes a base 1 and a U-shaped plate 2 fixed on the base 1. Two sets of lifting mechanisms 3 are provided on opposite sides of the U-shaped plate 2. An arc-shaped top plate 4 is provided above the lifting mechanism 3. The arc-shaped top plate 4 is used to support the top wall. Two sets of support mechanisms 5 are provided on opposite sides of the base 1.

[0024] In this embodiment: the lifting mechanism 3 includes two sets of transmission boxes 301 fixed on the base 1. A transmission shaft 302 is installed between the transmission boxes 301. The transmission shaft 302 is rotatably connected to the transmission box 301 and is used for transmission. A turbine 303 is fixedly installed on the transmission shaft 302 and is used to drive the transmission shaft 302 to rotate. A worm gear 304 is provided opposite to the turbine 303. The turbine 303 and the worm gear 304 mesh with each other. The worm gear 304 is installed through the U-shaped plate 2 and is rotatably connected to the U-shaped plate 2. The worm gear 304 is used to drive the turbine 303 to rotate. A lifting handwheel 305 is fixed to one end of the worm gear 304 and is used to drive the worm gear 304 to rotate. A sliding frame 306 is fixed opposite to the transmission box 301. An internal first screw 307 is installed, which passes through the transmission box 301 and is rotatably connected to the transmission box 301. A first bevel gear 308 is fixed at both ends of the transmission shaft 302. A second bevel gear 309 is fixed at the lower end of the first screw 307. The first bevel gear 308 and the second bevel gear 309 mesh with each other and are both used for transmission. The first screw 307 is used to drive the first threaded sleeve 310 to rise and fall. The first threaded sleeve 310 is sleeved on the outside of the first screw 307. The first threaded sleeve 310 and the first screw 307 are connected by threads. The first threaded sleeve 310 is slidably connected to the sliding frame 306. The arc-shaped top plate 4 is fixedly connected to the first threaded sleeve 310. The first threaded sleeve 310 is used to drive the arc-shaped top plate 4 to support the top wall.

[0025] In this embodiment: the support mechanism 5 includes a fixed plate 51 fixed on the base 1. Multiple sets of limiting rods 52 and second threaded sleeves 53 are installed opposite to each other on the fixed plate 51. A second screw 54 is installed inside the second threaded sleeve 53. The second screw 54 is used to drive the second threaded sleeve 53 to slide on the fixed plate 51. A support handwheel 55 is fixed to one end of the second screw 54. The support handwheel 55 is used to drive the second screw 54 to rotate. A support plate 56 is fixed to one end of the second threaded sleeve 53. The support plate 56 is used to support the side wall. The limiting rods 52 and the second threaded sleeve 53 are both slidably connected to the fixed plate 51. The limiting rods 52 are used to limit and prevent the support plate 56 from shifting when it moves. The second threaded sleeve 53 is used to drive the support plate 56 to move. The second threaded sleeve 53 and the second screw 54 are connected by threads. The second screw 54 is inserted through the U-shaped plate 2 and is rotatably connected to the U-shaped plate 2. The support plate 56 is fixedly connected to the limiting rods 52.

[0026] The working principle and usage process of this utility model are as follows: When in use, place the device in the desired location, and simultaneously crank the lifting handwheel 305 of the lifting mechanism 3 to drive the worm gear 304 to rotate. Through meshing with the turbine 303, the worm gear 304 rotates, thereby driving the transmission shaft 302 to rotate. This causes the first bevel gear 308 to mesh with the second bevel gear 309, which in turn drives the first screw 307 to rotate, causing the first threaded sleeve 310 to slide within the sliding frame 306. This, in turn, drives the arc-shaped top plate 4 to support the top wall. Then, crank the support handwheel 55 of the support mechanism 5 to drive the second screw 54 to rotate, causing the second threaded sleeve 53 to slide on the fixed plate 51. This, in turn, drives the support plate 56 to support the side wall.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A support device for mining roadways, comprising a base (1), characterized in that: It also includes a U-shaped plate (2) fixed on the base (1), with two sets of lifting mechanisms (3) arranged opposite each other on both sides of the U-shaped plate (2). The lifting mechanism (3) includes two sets of transmission boxes (301) fixed on the base (1), with a transmission shaft (302) installed between the transmission boxes (301). A turbine (303) is fixedly installed on the transmission shaft (302), and a worm gear (304) is arranged opposite each other above the turbine (303). A lifting handwheel (305) is fixed at one end of the worm gear (304). A sliding frame (306) is fixed opposite each other on the transmission box (301), and a first screw (307) is installed inside the sliding frame (306). A first cone is fixed opposite each other at both ends of the transmission shaft (302). The gear (308), the lower end of the first screw (307) is fixed with a second bevel gear (309), the first screw (307) is fitted with a first threaded sleeve (310), the lifting mechanism (3) is provided with an arc-shaped top plate (4), the base (1) is provided with two sets of support mechanisms (5) on both sides, the support mechanism (5) includes a fixing plate (51) fixed on the base (1), the fixing plate (51) is provided with multiple sets of limiting rods (52) and second threaded sleeves (53) installed opposite to each other, the second threaded sleeve (53) is provided with a second screw (54) installed inside, the second screw (54) is fixed with a support handwheel (55) at one end, and the second threaded sleeve (53) is fixed with a support plate (56) at one end.

2. The mining roadway support device according to claim 1, characterized in that: The drive shaft (302) is rotatably connected to the transmission box (301), the worm (303) meshes with the worm gear (304), the worm gear (304) passes through the U-shaped plate (2) and is rotatably connected to the U-shaped plate (2), the first screw (307) passes through the inside of the transmission box (301) and is rotatably connected to the transmission box (301), and the first bevel gear (308) meshes with the second bevel gear (309).

3. A mining roadway support device according to claim 1, characterized in that: The first threaded sleeve (310) is threadedly connected to the first screw (307), and the first threaded sleeve (310) is slidably connected to the sliding frame (306).

4. A mining roadway support device according to claim 1, characterized in that: The arc-shaped top plate (4) is fixedly connected to the first threaded sleeve (310).

5. A mining roadway support device according to claim 1, characterized in that: The limiting rod (52) and the second threaded sleeve (53) are slidably connected to the fixing plate (51). The second threaded sleeve (53) and the second screw (54) are connected by a thread. The second screw (54) is inserted through the U-shaped plate (2) and is rotatably connected to the U-shaped plate (2). The support plate (56) is fixedly connected to the limiting rod (52).

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