Self-moving tail of belt conveyor for thin coal seam comprehensive mining

Abstract

The utility model belongs to the field of coal mining, and discloses a belt conveyor self-moving tail for thin seam comprehensive mining, which comprises a feeding device for continuously conveying raw coal, and further comprises a plurality of supporting modules which are uniformly mounted at the bottom of the feeding device and are used for carrying and moving in a modularized dismounting manner, and the number of the supporting modules is at least three. The supporting module comprises a base device used for bearing and fixing, and self-walking devices used for telescopic movement are symmetrically arranged on the two sides of the base device. The self-walking device comprises two bearing guide rails which are symmetrically arranged, a lifting assembly used for lifting up and down is movably arranged at one ends of the bearing guide rails, and a feeding assembly used for stretching forward is installed at the ends, away from the lifting assembly, of the bearing guide rails. According to the self-moving tail of the belt conveyor for the thin coal seam comprehensive mining, sectional type bearing is achieved through the evenly-distributed supporting modules, the stability is guaranteed through the configuration of the three or more modules, local maintenance or replacement is facilitated, and the downtime is shortened.

Description

Technical Field

[0001] This utility model belongs to the field of coal mining, and in particular relates to a self-moving tail section of a fully mechanized belt conveyor for thin coal seams. Background Technology

[0002] Thin coal seam mining is a crucial step in coal mine production, and the self-moving tail section of the belt conveyor, as a key piece of equipment in fully mechanized mining faces, achieves automatic movement through hydraulic or mechanical drives, reducing manual intervention and significantly improving the efficiency and safety of thin coal seam mining. The self-moving tail section allows the conveyor to coordinate with the coal mining machine, minimizing production interruptions, and is suitable for thin coal seams with varying dip angles and hardness.

[0003] Comparing with Chinese Patent CN214273724U, a multi-functional belt conveyor with a self-moving tail section is disclosed. It consists of a guide rail, buffer rollers, a buffer bed, a spiral drum, and a tail-end adjustment mechanism. The spiral drum is mounted on the tail end of the guide rail via a tail-end drum seat. The tail-end adjustment mechanism is connected to the tail-end drum seat. A tail support seat for connecting to the conveyor's intermediate longitudinal beam is installed at the front end of the guide rail. Buffer rollers and a buffer bed are installed on the guide rail to support the belt and reduce the impact of falling coal. A front lifting support is installed at the lower front end of the guide rail, through which a front lifting mechanism is installed. A rear lifting support is installed at the lower tail end of the guide rail, through which a rear lifting mechanism is installed. The front and rear lifting mechanisms are movably connected to the track. A pusher seat is fixed at the upper middle of the track. A pusher jack is hinged to the front lifting support, and the end of the piston rod of the pusher jack is hinged to the pusher seat. It can be used for both longwall mining and tunneling, and it moves quickly on its own without the need for a winch to drag it.

[0004] However, when disassembling, repairing, or replacing parts, the aforementioned patent requires disassembling and assembling each part separately, which is time-consuming and labor-intensive. Therefore, a new device needs to be designed. Utility Model Content

[0005] The purpose of this invention is to provide a self-moving tail section of a fully mechanized belt conveyor for thin coal seams, in order to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A self-moving tail section of a fully mechanized belt conveyor for thin coal seams includes a feeding device for continuously conveying raw coal, and several support modules uniformly installed at the bottom of the feeding device for modular assembly, disassembly, and movement. At least three support modules are installed. Each support module includes a base device for fixed support, and self-propelled devices for telescopic movement are symmetrically arranged on both sides of the base device. The base device includes a top plate, a support frame is provided in the middle of the bottom surface of the top plate, two upper connecting seats are symmetrically arranged at one end of the bottom surface of the top plate, and several sets of connecting bolts are uniformly distributed on the top plate. The self-propelled device includes two symmetrically arranged support guide rails, a lifting component for vertical lifting is movably installed at one end of each support guide rail, and a feeding component for telescopic forward movement is installed at the end of the support guide rail away from the lifting component.

[0008] Furthermore: the feeding device includes a frame body, a plurality of connecting seats are evenly distributed at the bottom of the frame body, a conveyor belt is arranged in the middle of the frame body, and a feed hopper and a discharge hopper are respectively arranged at both ends of the conveyor belt.

[0009] Furthermore, the conveyor belt adopts a grooved structure with a central bottom and two high sides, and the fixed seat and the frame body are welded together.

[0010] Furthermore: a base plate is provided on the bottom surface of the support frame, and the top plate, the support frame and the base plate are welded together.

[0011] Furthermore: the lifting assembly includes a first hydraulic cylinder, a lifting frame is installed at the telescopic end of the first hydraulic cylinder, and two rollers are symmetrically installed inside the lifting frame; the feeding assembly includes a lower connecting seat, a second hydraulic cylinder is installed on the lower connecting seat, and the two ends of the second hydraulic cylinder are respectively hinged to the lower connecting seat and the upper connecting seat.

[0012] Furthermore: the supporting guide rail has an I-shaped cross section, and the bottom surface of the lifting frame is symmetrically provided with two limiting edges.

[0013] Compared with existing technologies, the beneficial effects are:

[0014] 1. Segmented support is achieved through evenly distributed support modules (including base device + self-propelled device). The configuration of three or more modules ensures stability and facilitates local maintenance or replacement, reducing downtime. The modular design ensures that the failure of a single support module does not affect the overall operation.

[0015] 2. The first hydraulic cylinder (lifting) and the second hydraulic cylinder (feeding) are linked by a hinge, and together with the I-shaped guide rail and the limiting edge, they realize a precise cycle of lifting-translation-landing, adapting to undulating ground; the symmetrical layout of the self-propelled device ensures the balance of movement and avoids the jamming caused by traditional whole-body pushing.

[0016] 3. A single operation cycle (lifting → retracting → advancing → resetting) can be completed within 3-5 minutes (estimated in the example), without the need for external equipment; the reaction lifting mechanism (cylinder extension to lift the base) achieves self-unlocking ground contact, simplifying the operation process; the I-shaped guide rail and the limiting edge cooperate to prevent lateral deviation, making it suitable for high-intensity operation environments in thin coal seams. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a self-moving tail section belt conveyor for thin coal seams as described in this utility model;

[0018] Figure 2 This is a schematic diagram of a feeding device for a thin coal seam fully mechanized belt conveyor with a self-moving tail section, as described in this utility model.

[0019] Figure 3 This is a schematic diagram of a support module for a self-moving tail section of a belt conveyor used in a thin coal seam, as described in this utility model.

[0020] Figure 4 This is a schematic diagram of a base device for a self-moving tail section of a belt conveyor used in thin coal seams, as described in this utility model.

[0021] Figure 5 This is a schematic diagram of a self-propelled device for a belt conveyor with a self-moving tail section in thin coal seams, as described in this utility model.

[0022] Figure 6 This is a schematic diagram of a lifting assembly for a self-moving tail section of a belt conveyor used in a thin coal seam, as described in this utility model.

[0023] In the attached drawings, the following are the reference numerals: 101, frame body; 102, fixed seat; 103, conveyor belt; 104, feed hopper; 105, discharge hopper; 201, top plate; 202, connecting bolt group; 203, support frame; 204, bottom plate; 205, upper connecting seat; 301, support guide rail; 302, lower connecting seat; 303, second hydraulic cylinder; 304, first hydraulic cylinder; 305, lifting frame; 306, roller; 307, limiting edge. Detailed Implementation

[0024] 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.

[0025] Please see Figures 1-6A self-moving tail section of a belt conveyor for thin coal seams includes a feeding device for continuously conveying raw coal, and several support modules uniformly installed at the bottom of the feeding device for modular assembly and disassembly for support and movement. At least three or more support modules are installed. Each support module includes a base device for support and fixation, and self-propelled devices for telescopic movement are symmetrically arranged on both sides of the base device.

[0026] In this embodiment: the feeding device includes a frame body 101, with several connecting seats evenly distributed at the bottom of the frame body 101, a conveyor belt 103 arranged in the middle of the frame body 101, and a feed hopper 104 and a discharge hopper 105 respectively arranged at both ends of the conveyor belt 103; the conveyor belt 103 adopts a grooved structure with a center bottom and two sides high, and the fixed seat 102 is welded to the frame body 101; the fixed seat 102 supports the frame body 101 and supports the conveyor belt 103 to move cyclically, so that the raw coal falls from the feed hopper 104 onto the conveyor belt 103 and moves to the discharge hopper 105 for discharge.

[0027] In this embodiment: the base device includes a top plate 201, a support frame 203 is provided in the middle of the bottom surface of the top plate 201, two upper connecting seats 205 are symmetrically provided at one end of the bottom surface of the top plate 201, and a number of connecting bolt groups 202 are evenly distributed on the top plate 201; a bottom plate 204 is provided on the bottom surface of the support frame 203, and the top plate 201, the support frame 203 and the bottom plate 204 are welded together; the top plate 201 is fixedly connected to the bottom of the fixed seat 102 by the connecting bolt groups 202, the support frame 203 is supported by the bottom plate 204 in contact with the ground, and the top plate 201 and the fixed seat 102 support the machine frame 101 to support the conveyor belt 103 to move cyclically;

[0028] In this embodiment: the self-propelled device includes two symmetrically arranged support rails 301. One end of each support rail 301 is movably equipped with a lifting assembly for vertical movement, and the end of the support rail 301 away from the lifting assembly is equipped with a feeding assembly for telescopic forward movement. The lifting assembly includes a first hydraulic cylinder 304, with a lifting frame 305 mounted on its telescopic end. Two rollers 306 are symmetrically installed inside the lifting frame 305. The feeding assembly includes a lower connecting seat 302, on which a second hydraulic cylinder 303 is mounted. Both ends of the second hydraulic cylinder 303 are respectively connected to the lower connecting seat. The connecting seat 302 and the upper connecting seat 205 are hinged together; the supporting guide rail 301 has an I-shaped cross section, and the bottom surface of the lifting frame 305 is symmetrically provided with two limiting edges 307; the first hydraulic cylinder 304 extends and retracts, pulling the supporting guide rail 301 up and down through the limiting edges 307 of the lifting frame 305; the roller 306 in the middle of the lifting frame 305 moves along the supporting guide rail 301 to reduce frictional resistance during movement; the second hydraulic cylinder 303 extends and retracts, and the changes in movement are supported by the upper connecting seat 205 and the lower connecting seat 302 to realize the movement and feeding of the supporting guide rail 301 and the supporting frame 203.

[0029] Working principle: The top plate 201 is fixedly connected to the fixed seat 102 via connecting bolts 202. The support frame 203 is supported by the bottom plate 204 in contact with the ground. The top plate 201 and the fixed seat 102 support the machine frame 101, supporting the conveyor belt 103 to move cyclically. Raw coal falls from the feed hopper 104 onto the conveyor belt 103 and moves to the discharge hopper 105 for discharge. During the moving feed, the first cylinder 304 retracts first, pulling one end of the support guide rail 301 off the ground via the limiting edge 307 of the lifting frame 305. Then the second cylinder 303 retracts, supported by the upper connecting seat 205, and pulled by the lower connecting seat 302. The support guide rail 301 moves along the lifting frame 305 for feeding. Then, the first hydraulic cylinder 304 extends, pushing the lifting frame 305 to lower the support guide rail 301, so that the bottom surface of the support guide rail 301 contacts the ground. At the same time, the first hydraulic cylinder 304 continues to extend, causing the top plate 201 to be lifted under the action of reaction force, which causes the bottom plate 204 at the bottom of the support frame 203 to lift off the ground. At this time, the second hydraulic cylinder 303 extends, and under the support of the lower connecting seat 302, it pushes the base device to move for feeding through the upper connecting seat 205. At the same time, the first hydraulic cylinder 304 moves along the support guide rail 301 through the roller 306 in the middle of the bottom lifting frame 305, reducing the frictional resistance during movement.

[0030] 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 thin seam fully mechanized mining belt conveyor self-moving tail, comprising a feeding device for continuously conveying raw coal, characterized in that: It also includes several support modules evenly installed at the bottom of the feeding device for modular disassembly and assembly for support and movement. At least three support modules are installed. Each support module includes a base device for support and fixation, and self-propelled devices for telescopic movement are symmetrically arranged on both sides of the base device. The base device includes a top plate (201), a support frame (203) is provided in the middle of the bottom surface of the top plate (201), two upper connecting seats (205) are symmetrically provided at one end of the bottom surface of the top plate (201), and a number of connecting bolt groups (202) are evenly distributed on the top plate (201). The self-propelled device includes two symmetrically arranged support rails (301). One end of the support rail (301) is movably provided with a lifting component for vertical lifting, and the other end of the support rail (301) away from the lifting component is equipped with a feeding component for telescopic forward movement.

2. The self-moving tail of fully mechanized belt conveyor for thin coal seam according to claim 1, characterized in that: The feeding device includes a frame body (101), a number of fixed seats (102) are evenly distributed at the bottom of the frame body (101), a conveyor belt (103) is arranged in the middle of the frame body (101), and a feed hopper (104) and a discharge hopper (105) are respectively arranged at both ends of the conveyor belt (103).

3. The self-advancing tail piece of fully mechanized belt conveyor for thin coal seam mining according to claim 2, characterized in that: The conveyor belt (103) adopts a grooved structure with a central bottom and two high sides, and the fixed seat (102) and the frame body (101) are welded together.

4. The self-moving tail of fully mechanized belt conveyor for thin coal seam according to claim 1, characterized in that: The bottom surface of the support frame (203) is provided with a bottom plate (204), and the top plate (201), the support frame (203) and the bottom plate (204) are welded together.

5. The self-advancing tail piece of a fully mechanized belt conveyor for thin coal seams according to claim 1, characterized in that: The lifting assembly includes a first hydraulic cylinder (304), and a lifting frame (305) is installed on the telescopic end of the first hydraulic cylinder (304). Two rollers (306) are symmetrically installed inside the lifting frame (305). The feeding assembly includes a lower connecting seat (302), and a second hydraulic cylinder (303) is installed on the lower connecting seat (302). The two ends of the second hydraulic cylinder (303) are respectively hinged to the lower connecting seat (302) and the upper connecting seat (205).

6. The self-advancing tail piece of a fully mechanized belt conveyor for thin coal seams according to claim 5, characterized in that: The supporting guide rail (301) has an I-shaped cross section, and the bottom surface of the lifting frame (305) is symmetrically provided with two limiting edges (307).

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