Pneumatic control scraper loader

Abstract

The utility model discloses a pneumatic control scraper loader, belongs to the field of coal mine transportation, and aims to remotely control opening and closing of a brake band and improve operation safety. A telescopic mechanism for opening and closing the brake band by adjusting the size of the opening is arranged at the opening of the brake band; the telescopic mechanism is a pneumatic telescopic mechanism; the electromagnetic reversing valve is communicated with the telescopic mechanism through a pipeline; the electric control box is arranged in the operation chamber, a driving button is installed on the electric control box, and the driving button and the electromagnetic reversing valve are connected with a controller in the electric control box. The brake band body is attached to the inner wall of the steel ring to form the brake band, the steel ring plays a role in supporting the brake band body, and good conditions are created for installation of parts on the steel ring. The telescopic mechanism which stretches out and draws back through air pressure drives the brake band to be opened and closed, labor intensity is low, and operation efficiency is high. The electromagnetic reversing valve, the electric control box and the driving button are matched with one another, remote control over opening and closing of the brake band is achieved, the safety of personnel is guaranteed, the labor intensity of workers is reduced, and operation is flexible.

Description

Technical Field

[0001] The utility model belongs to the field of coal mine transportation, in particular to a pneumatically controlled rake bucket rock loader. Background Art

[0002] In the existing coal mine rock tunnel excavation, most of them use blasting method to excavate the tunnel, bucket loader to load the rock, and mine car to deliver the rock. Figure 1 As shown, the scraper bucket rock loader uses two drums of a winch 20 to pull the main rope and tail rope respectively, causing the scraper bucket 21 to reciprocate. The scraper bucket pulls the rock into the feed chute 22, and then discharges the rock into the mine car from the discharge port at the rear of the feed chute 22, thus completing the loading process. The operating mechanism consists of two sets of operating levers 24, connecting rods 23, and adjustment screws. One end of the adjustment screw is connected to the end of the winch brake belt, and the other end is movably connected to the head end of the winch brake belt. That is, the brake belt can move axially along the adjustment screw to change the size of the opening at the head and tail to achieve the opening and closing of the brake belt. The opening and closing of the brake belt is controlled by the operating lever, which is arranged vertically and is a telescopic rod. Its top end is connected to the head end of the brake belt through the connecting rod 23. The opening and closing of the brake belt is controlled by extending and lowering the operating lever 24. The raising and lowering of the joystick 24 is manually controlled by the handle at its bottom. The joystick is usually installed on either side of the winch, so that the staff must operate the joystick at close range. The joystick is located below the feed chute 22, which poses a high safety risk. Utility Model Content

[0003] The utility model aims to provide a pneumatically controlled rake bucket rock loader, which can realize remote control of the opening and closing of the gate belt and improve operation safety.

[0004] The technical solution adopted by the utility model is: a pneumatically controlled scraper bucket rock loader, including a winch drum and a brake belt surrounding the drum, the brake belt is provided with at least two sections along the circumferential direction of the drum, and the two adjacent sections of the brake belt are hinged to each other; after the brake belt surrounds the drum, an opening is formed at the first joint, and a telescopic mechanism is provided at the opening to realize the opening and closing of the brake belt by adjusting the size of the opening; the brake belt includes an inner brake belt body for directly acting on the drum and an outer steel ring, the brake belt body is attached to the inner wall of the steel ring; the telescopic mechanism is installed at both end portions of the steel ring close to the opening; the telescopic mechanism is a pneumatic telescopic mechanism; it also includes an electromagnetic reversing valve and an electric control box, the electromagnetic reversing valve is connected to the telescopic mechanism through a pipeline, and the telescopic mechanism is controlled by the electromagnetic reversing valve to retract; the electric control box is arranged in the operating room, and a drive button is installed on the electric control box, the drive button and the electromagnetic reversing valve are connected to the controller in the electric control box, and the controller receives the signal of the drive button and controls the action of the electromagnetic reversing valve.

[0005] Furthermore, the outer wall of the steel ring at one end of the gate belt is fixedly connected to a base plate 1, and the base plate 1 is arranged in contact with the outer wall of the steel ring; the outer wall of the steel ring at the other end of the gate belt is fixed to a base plate 2, and the base plate 2 is arranged in contact with the outer wall of the steel ring; the telescopic mechanism is installed between the base plate 1 and the base plate 2.

[0006] Furthermore, a connecting seat and ear plate 1 are provided at the end of base plate 1 near the gate belt opening, the connecting seat is fixed to the outer wall of base plate 1, the inner end of ear plate 1 is installed on the connecting seat, and the outer end extends vertically upward; an ear plate 2 is provided at the end of base plate 2 near the gate belt opening, the ear plate 2 is fixed to the outer wall of base plate 2; the telescopic mechanism is installed between the outer end of ear plate 1 and ear plate 2.

[0007] Furthermore, a reinforcing rib plate is provided on the end of the base plate 1 away from the gate belt opening and the end of the base plate 2 away from the gate belt opening respectively.

[0008] Furthermore, the telescopic mechanism is a transverse pneumatic cylinder, the tail of the cylinder body of the transverse pneumatic cylinder is hinged to the outer end of the first ear plate, and the head of the piston rod of the transverse pneumatic cylinder is hinged to the second ear plate.

[0009] Furthermore, the telescopic mechanism includes an adjusting pull rod, an adjusting pressure rod and a vertical pneumatic cylinder; one end of the adjusting pull rod is hinged to ear plate 2, and the other end moves through ear plate 1 and is threadedly connected to the limit nut; the tail of the cylinder body of the vertical pneumatic cylinder is hinged to the trolley carrying the winch, and the top end of the piston rod and the connecting seat are connected through the adjusting pressure rod.

[0010] Furthermore, a connecting rod is provided on the connecting seat, one end of the connecting rod is hinged to the connecting seat, and the other end is detachably connected to the adjusting pressure rod, and the other end of the adjusting pressure rod connected to the connecting rod is hinged to the top of the piston rod of the vertical pneumatic cylinder.

[0011] The beneficial effects of the present utility model are as follows: the pneumatically controlled scraper bucket rock loader disclosed in the present utility model forms a gate belt by attaching the gate belt body to the inner wall of the steel ring. The steel ring not only plays the role of supporting the gate belt body, but also creates good conditions for the installation of parts thereon. The telescopic mechanism is used to connect the first two ends of the gate belt at the opening. At the same time, it can extend and shorten, and drive the gate belt to open and close by its extension and shortening. The telescopic mechanism is a pneumatic telescopic mechanism, which relies on air pressure to perform telescopic movements. Compared with traditional manual operations, it has low labor intensity and high operating efficiency. The mutual cooperation of the electromagnetic reversing valve, the electric control box and the drive button realizes remote control of the gate belt opening and closing, ensures the safety of personnel, reduces the labor intensity of workers, and is flexible in operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of a prior art bucket rock loader;

[0013] Figure 2This is a schematic diagram of a bucket rock loader disclosed in Example 1 of the present utility model;

[0014] Figure 3 for Figure 2 Schematic diagram of the brake part of the disclosed bucket rock loader;

[0015] Figure 4 This is a schematic diagram of a bucket rock loader disclosed in Example 2 of the present utility model;

[0016] Figure 5 for Figure 4 Schematic diagram of the brake part of the public bucket loader.

[0017] In the figure, the roller 1, the brake belt body 2, the steel ring 3, the base plate 1 4, the connecting seat 5, the ear plate 1 6, the base plate 2 7, the ear plate 2 8, the reinforcing rib plate 9, the horizontal pneumatic cylinder 10, the adjusting rod 11, the adjusting pressure rod 12, the vertical pneumatic cylinder 13, the connecting rod 14, the electromagnetic reversing valve 15, the electric control box 16, the drive button 17, the limit nut 18, the trolley 19, the winch 20, the rake bucket 21, the feed trough 22, the connecting rod 23, and the joystick 24. DETAILED DESCRIPTION

[0018] The present invention will be further described below with reference to the accompanying drawings:

[0019] The words "up", "down", "left", "right", "front", "back", "two ends", "one end", "the other end" etc. used in this utility model to indicate directions are based on the attached Figure 2 The orientation or positional relationship shown is only for the convenience of describing the present invention, and does not indicate or imply that the device or element must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it should not be understood as a limitation on the present invention.

[0020] like Figure 1 The illustrated scraper bucket loader uses the two drums of the winch to pull the main rope and tail rope respectively, causing the scraper bucket to reciprocate. The scraper bucket scrapes the rock into the trough, and then discharges the rock into the mine car from the discharge port at the rear of the trough, thereby achieving rock loading. The outer ring of the winch drum is surrounded by a brake belt. The brake belt is arranged in at least two sections along the drum 1. The two adjacent sections of the brake belt are hinged to each other. By manipulating and controlling the brake belt to close, the drum 1 is tightened, and by manipulating and controlling the brake belt to loosen, the drum 1 is loosened, thereby achieving the purpose of controlling the winch drum and further controlling the scraper bucket operation. In existing scraper bucket loader, the operating lever for controlling the opening and closing of the brake belt is directly installed on either side of the two drums of the winch. The operator manually raises and lowers the operating lever to open and close the brake belt, making it difficult to ensure safety performance.

[0021] In order to improve safety, the utility model discloses a pneumatically controlled rake bucket rock loader. Figure 2 or Figure 4As shown, it includes a winch drum 1 and a brake belt surrounding the drum 1, the brake belt is arranged in at least two sections along the drum 1, and the adjacent brake belt sections are hinged to each other; after the brake belt surrounds the drum 1, an opening is formed at the first joint, and a telescopic mechanism is provided at the opening to achieve the opening and closing of the brake belt by adjusting the size of the opening; the brake belt includes an inner brake belt body 2 for directly acting on the drum 1 and an outer steel ring 3, the brake belt body 2 is attached to the inner wall of the steel ring 3; the telescopic mechanism is installed at both ends of the steel ring 3 near the opening; the telescopic mechanism is a pneumatic telescopic mechanism; it also includes an electromagnetic reversing valve 15 and an electric control box 16, the electromagnetic reversing valve 15 is connected to the telescopic mechanism through a pipeline, and the telescopic mechanism is controlled by the electromagnetic reversing valve 15; the electric control box 16 is arranged in the operating room, and a drive button 17 is installed on the electric control box 16. The drive button 17 and the electromagnetic reversing valve 15 are connected to the controller in the electric control box 16, and the controller receives the signal of the drive button 17 and controls the operation of the electromagnetic reversing valve 15.

[0022] The steel ring 3 not only supports the gate belt body 2, but also creates good conditions for the installation of its components. The telescopic mechanism is used to connect the first and second ends of the gate belt at the opening. At the same time, it can extend and shorten, and drive the gate belt to open and close by its extension and shortening. The telescopic mechanism is a pneumatic telescopic mechanism that relies on air pressure to perform telescopic movements. Compared with traditional manual operation, it has low labor intensity and high work efficiency. The configuration of the electromagnetic reversing valve 15, the electric control box 16 and the drive button 17 realizes remote operation, ensures the safety of personnel, reduces the labor intensity of workers, and is flexible in operation.

[0023] In order to avoid deformation of the end of the steel ring 3, preferably, the outer wall of the steel ring 3 at one end of the gate belt is fixedly connected to a base plate 4, and the base plate 4 is arranged in contact with the outer wall of the steel ring 3; the outer wall of the steel ring 3 at the other end of the gate belt is fixed with a base plate 2 7, and the base plate 2 7 is arranged in contact with the outer wall of the steel ring 3; the telescopic mechanism is installed between the base plate 1 4 and the base plate 2 7.

[0024] Preferably, a connecting seat 5 and a lug plate 6 are provided at the end of base plate 1 (4) near the gate belt opening. The connecting seat 5 is fixed to the outer wall of base plate 1 (4). The inner end of lug plate 6 is mounted on the connecting seat 5, and the outer end extends vertically upward. A lug plate 2 (8) is provided at the end of base plate 2 (7) near the gate belt opening. Lug plate 2 (8) is fixed to the outer wall of base plate 2 (7). The telescopic mechanism is installed between the outer end of lug plate 1 (6) and lug plate 2 (8). The provision of lug plate 6 allows the telescopic mechanism to lift away from the gate belt, preventing interference between the telescopic mechanism and the gate belt.

[0025] In order to further strengthen the base plate 1 and avoid warping when the base plate 1 4 and the base plate 2 7 are welded to the steel ring 3, thereby causing the gate belt to deform and fail to fit tightly against the roller 1, preferably, the end of the base plate 1 4 away from the gate belt opening and the end of the base plate 2 7 away from the gate belt opening are respectively provided with reinforcing ribs 9.

[0026] The telescopic mechanism can have various forms, such as Figure 2 and Figure 3 In the disclosed embodiment 1, the telescopic mechanism is a transverse pneumatic cylinder 10. The rear end of the cylinder body of the transverse pneumatic cylinder 10 is hinged to the outer end of the lug 1 6, and the head of the piston rod of the transverse pneumatic cylinder 10 is hinged to the lug 2 8. The transverse pneumatic cylinder 10 not only connects the first and second ends of the gate belt but also drives the gate belt to open and close. It has a simple structure and occupies a small space.

[0027] For example Figure 4 and Figure 5 In the disclosed embodiment 2, the telescopic mechanism includes an adjusting rod 11, an adjusting pressure rod 12, and a vertical pneumatic cylinder 13. One end of the adjusting rod 11 is hinged to the second lug plate 8, and the other end moves through the first lug plate 6 and is threadedly connected to the limit nut 18. The rear end of the cylinder body of the vertical pneumatic cylinder 13 is hinged to the trolley 19 carrying the winch, and the top end of the piston rod is connected to the connecting seat 5 via the adjusting pressure rod 12. When the vertical pneumatic cylinder 13 extends, the adjusting pressure rod 12 pushes the first lug plate 6 along the axial direction of the adjusting rod 11 toward the side where the second lug plate 8 is located, so that the brake belt grips the roller 1. When the vertical pneumatic cylinder 13 retracts, the adjusting pressure rod 12 pulls the first lug plate 6 along the axial direction of the adjusting rod 11 away from the second lug plate 8, so that the brake belt releases the roller 1. The limit nut 18 on the adjusting rod 11 limits the first lug plate 6 to prevent it from separating from the adjusting rod 11.

[0028] In order to facilitate the connection between the piston rod end of the vertical pneumatic cylinder 13 and the connecting seat 5, preferably, a connecting rod 14 is provided on the connecting seat 5, one end of the connecting rod 14 is hinged to the connecting seat 5, and the other end is detachably connected to the adjusting pressure rod 12, and the other end of the adjusting pressure rod 12 connected to the connecting rod 14 is hinged to the top end of the piston rod of the vertical pneumatic cylinder 13.

[0029] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pneumatically controlled scraper bucket rock loader, comprising a winch drum (1) and a brake belt surrounding the drum (1), wherein the brake belt is provided with at least two sections along the drum (1), and adjacent sections of the brake belt are hinged to each other; after the brake belt surrounds the drum (1), an opening is formed at the first joint, and a telescopic mechanism is provided at the opening for realizing opening and closing of the brake belt by adjusting the size of the opening; and the characteristics are: The gate belt comprises an inner gate belt body (2) for directly acting on the roller (1) and an outer steel ring (3), wherein the gate belt body (2) is attached to the inner wall of the steel ring (3); the telescopic mechanism is installed at both ends of the steel ring (3) close to the opening; the telescopic mechanism is a pneumatic telescopic mechanism; and further comprises an electromagnetic reversing valve (15) and an electric control box (16), wherein the electromagnetic reversing valve (15) is connected to the telescopic mechanism through a pipeline, and the telescopic mechanism is controlled to be extended and retracted by the electromagnetic reversing valve (15); the electric control box (16) is arranged in an operating room, and a driving button (17) is installed on the electric control box (16), wherein the driving button (17) and the electromagnetic reversing valve (15) are connected to a controller in the electric control box (16), and the controller receives a signal from the driving button (17) and controls the action of the electromagnetic reversing valve (15).

2. The pneumatically controlled rake bucket rock loader according to claim 1, characterized in that: The outer wall of the steel ring (3) at one end of the gate belt is fixedly connected to a base plate (4), and the base plate (4) is arranged in contact with the outer wall of the steel ring (3); the outer wall of the steel ring (3) at the other end of the gate belt is fixed to a base plate (7), and the base plate (7) is arranged in contact with the outer wall of the steel ring (3); the telescopic mechanism is installed between the base plate (4) and the base plate (7).

3. The pneumatically controlled rake bucket rock loader according to claim 2, characterized in that: A connecting seat (5) and an ear plate (6) are provided on the end of the base plate (4) near the gate belt opening, wherein the connecting seat (5) is fixed to the outer wall of the base plate (4), and the inner end of the ear plate (6) is installed on the connecting seat (5), and the outer end extends vertically upward; an ear plate (8) is provided on the end of the base plate (7) near the gate belt opening, wherein the ear plate (8) is fixed to the outer wall of the base plate (7); and the telescopic mechanism is installed between the outer end of the ear plate (6) and the ear plate (8).

4. The pneumatically controlled rake bucket rock loader according to claim 3, characterized in that: The end of the base plate 1 (4) away from the gate belt opening and the end of the base plate 2 (7) away from the gate belt opening are respectively provided with reinforcing rib plates (9).

5. The pneumatically controlled rake bucket rock loader according to any one of claims 1 to 4, characterized in that: The telescopic mechanism is a transverse pneumatic cylinder (10), the cylinder tail of the transverse pneumatic cylinder (10) is hinged to the outer end of the ear plate (6), and the piston rod head of the transverse pneumatic cylinder (10) is hinged to the ear plate (8).

6. The pneumatically controlled rake bucket rock loader according to any one of claims 1 to 4, characterized in that: The telescopic mechanism includes an adjusting pull rod (11), an adjusting pressure rod (12) and a vertical pneumatic cylinder (13); one end of the adjusting pull rod (11) is hinged to the second ear plate (8), and the other end is movable through the first ear plate (6) and is threadedly connected to the limit nut (18); the tail end of the cylinder body of the vertical pneumatic cylinder (13) is hinged to the trolley (19) carrying the winch, and the top end of the piston rod is connected to the connecting seat (5) through the adjusting pressure rod (12).

7. The pneumatically controlled rake bucket rock loader according to claim 6, characterized in that: A connecting rod (14) is provided on the connecting seat (5), one end of the connecting rod (14) is hinged to the connecting seat (5), and the other end is detachably connected to the adjusting pressure rod (12), and the other end of the adjusting pressure rod (12) connected to the connecting rod (14) is hinged to the top end of the piston rod of the vertical pneumatic cylinder (13).

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