Auxiliary brake device for pneumatic monorail hoist in coal mine tunnel

Abstract

The utility model discloses an auxiliary brake device for a pneumatic monorail hoist in a coal mine tunnel, and belongs to the technical field of underground coal mine mechanical equipment. The auxiliary brake device of the pneumatic monorail hoist in the coal mine tunnel comprises two brake supporting frames which are assembled into a whole set in a mirror butt joint mode, and a brake device is assembled on the outer wall of a brake arm. The brake device comprises a clamping air cylinder, a connecting pin shaft penetrates through the outer wall of the top end of the brake arm, brake shoes penetrate through the outer walls of the two ends of the connecting pin shaft, connecting grooves are formed in the outer walls of the brake shoes, and auxiliary brake blocks are fixedly connected to the outer walls of the brake shoes. According to the auxiliary brake device for the pneumatic monorail hoist in the coal mine tunnel, through the arrangement of the brake device, a clamping air cylinder is started to push a brake arm to rotate, so that a brake shoe is pushed to move, the surface of an auxiliary brake block is attached to the surface of a rail, and the hoist is braked through friction force between the auxiliary brake block and the rail; and the usability of the whole device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field related to underground mechanical equipment in coal mines, in particular to an auxiliary brake device for a pneumatic monorail crane in a coal mine tunnel. Background Art

[0002] Pneumatic monorail crane is one of the lifting and transportation equipment used for short-distance dispatching in coal mines. When in use, the cargo is suspended on the load-bearing trolley, and the equipment can perform short-distance load-bearing operations along the suspended rail in the tunnel. The drive of the equipment is realized by the drive device. When the supply of high-pressure air is stopped, the drive device stops immediately.

[0003] However, when the existing pneumatic monorail crane is traveling on an I-beam track and needs to stop when encountering a steep slope or a steep slope section, the driving load-bearing device may cause the load-bearing vehicle to slip, which may cause a huge safety accident. Therefore, there is a special need for an auxiliary brake device for a pneumatic monorail crane in a coal mine tunnel. Utility Model Content

[0004] The purpose of the utility model is to provide an auxiliary brake device for a pneumatic monorail crane in a coal mine tunnel, so as to solve the problem proposed in the above background technology that when the existing pneumatic monorail crane is traveling on an I-beam track and encounters a steep slope or a steep slope section and needs to stop on this section, when the driving load-bearing device has the load-bearing vehicle slipping and pulling, it will cause a huge safety accident.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an auxiliary brake device for a pneumatic monorail crane in a coal mine tunnel, comprising two brake support frames assembled into a set by mirror-image docking, a brake arm is rotatably connected to the outer wall of the brake support frame, and a brake device is mounted on the outer wall of the brake arm;

[0006] The braking device includes a tightening cylinder, which is installed on the surface of the brake arm, and both ends of the tightening cylinder are rotatably connected to the brake arm. A screw rod passes through the surface of the brake arm, a spring fixing baffle is fixedly connected to the outer wall of the screw rod, a spring is fixedly connected to the outer wall of the spring fixing baffle, nuts are threadedly connected to the outer walls of both ends of the screw rod, a connecting pin shaft passes through the top outer wall of the brake arm, brake shoes are passed through the outer walls of both ends of the connecting pin shaft, a connecting groove is opened on the outer wall of the brake shoe, and an auxiliary brake block is fixedly connected to the outer wall of the brake shoe.

[0007] Preferably, the two brake arms assembled in a mirror-image manner form a rotating structure with the brake support frame through a spring, so that when the brake arms are not subjected to force, the springs can push the brake arms to return to their original positions.

[0008] Preferably, the connecting pin is connected to the brake shoe through a connecting groove, and the connecting groove is elliptical. Through the elliptical setting, when the brake arm rotates, it can drive the connecting pin to slide inside the connecting groove and push the brake shoe to move.

[0009] Preferably, a slide groove is provided on the outer wall of the brake support frame, and a slider is fixedly connected to the outer wall of the brake shoe and is slidably connected to the slide groove. Through the connection between the slider and the slide groove, the brake shoe can be limited to ensure the stability of the brake shoe on the surface of the brake support frame.

[0010] Preferably, a plurality of groups of running wheels are provided on the surface of the brake support frame and are symmetrically arranged about the central axis. The running wheels play an auxiliary role in the movement of the brake support frame to ensure the stability of the brake support frame when it moves on the track surface.

[0011] Preferably, a balancing device is installed on the outer wall of the brake arm, and the balancing device includes a connecting sleeve, which is installed on the surface of the brake arm, a connecting block is rotatably connected to the inner wall of the connecting sleeve, a connecting plate is rotatably connected to the outer wall of one end of the connecting block, and a support block is fixedly connected to the surface of the connecting plate.

[0012] Preferably, the connecting blocks are symmetrically arranged with respect to the central axis of the connecting plate, and the connecting plate is pulled by the two groups of connecting blocks so that the connecting plate moves upward and rotates on the surface of the connecting blocks so that the connecting plate and the two groups of connecting blocks are on the same horizontal line.

[0013] Preferably, a rubber pad is bonded to the surface of the support block, and the rubber pad plays a buffering role during the connection between the support block and the track, which can reduce the wear rate between the support block and the track and increase the service life of the support block.

[0014] The difference from the prior art is that the beneficial effects of this application are:

[0015] (1) The auxiliary brake device of the pneumatic monorail crane in the coal mine tunnel, through the setting of the brake device, starts the tightening cylinder to drive the brake arm to rotate, thereby driving the brake shoe to move, so that the surface of the auxiliary brake block fits the surface of the track, and the crane is braked by the friction between the auxiliary brake block and the track, thereby improving the overall usability of the device.

[0016] (2) The auxiliary brake device of the pneumatic monorail crane in the coal mine tunnel is equipped with a balancing device. When the brake arm rotates on the surface of the brake support frame, it can pull the two sets of connecting blocks, so that the connecting plate will move upward, thereby pushing the support block to move upward, thereby limiting the brake support frame and ensuring that the brake support frame can maintain balance with the track when it stops moving, and will not affect the movement of the brake support frame again, thereby improving the overall usability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the appearance structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the top view structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the slideway and the slider cooperating with each other in the utility model;

[0020] Figure 4 This is a schematic diagram of the structure in which the connecting sleeve and the connecting block cooperate with each other in the utility model.

[0021] In the figure:

[0022] 1. Brake support frame; 2. Travel wheel; 3. Brake arm; 4. Clamping cylinder; 5. Screw; 6. Spring fixing baffle; 7. Spring; 8. Nut; 9. Connecting pin; 10. Brake shoe; 11. Connecting groove; 12. Auxiliary brake block; 13. Slide groove; 14. Slider; 15. Connecting sleeve; 16. Connecting block; 17. Connecting plate; 18. Support block. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] It should be noted that the terms "first", "second", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so as to describe the embodiments of the utility model here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0025] In the present invention, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside", "outside", "middle", "vertical", "horizontal", "transverse", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings. These terms are mainly used to better describe the present invention and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0026] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those skilled in the art, the specific meanings of these terms in this utility model can be understood according to specific circumstances.

[0027] In addition, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0028] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0029] Embodiment 1

[0030] See also Figure 1 - Figure 4As shown in the figure, a pneumatic monorail crane auxiliary brake device for a coal mine laneway includes two brake support frames 1 assembled in a mirror-image manner. The surface of the brake support frame 1 is provided with multiple sets of running wheels 2, which are symmetrically arranged with the central axis. The running wheels 2 play an auxiliary role in the process of the movement of the brake support frame 1 to ensure the stability of the brake support frame 1 when it moves on the track surface. A brake arm 3 is rotatably connected to the outer wall of the brake support frame 1, and a slide groove 13 is provided on the outer wall of the brake support frame 1. A slider 14 is slidably connected to the inside of the slide groove 13, and the slider 14 is fixedly connected to the brake shoe 10. Through the connection between the slider 14 and the slide groove 13, the brake shoe 10 can be limited to ensure the stability of the brake shoe 10 on the surface of the brake support frame 1. A braking device is assembled on the outer wall of the brake arm 3; the braking device includes a tightening cylinder 4, which is installed on the surface of the brake arm 3, and both ends of the tightening cylinder 4 are rotatably connected to the brake arm 3, a screw 5 passes through the surface of the brake arm 3, a spring fixing baffle 6 is fixedly connected to the outer wall of the screw 5, a spring 7 is fixedly connected to the outer wall of the spring fixing baffle 6, nuts 8 are threadedly connected to the outer walls of both ends of the screw 5, a connecting pin 9 passes through the outer wall of the top end of the brake arm 3, brake shoes 10 pass through the outer walls of both ends of the connecting pin 9, a connecting groove 11 is opened on the outer wall of the brake shoe 10, and an auxiliary brake block 12 is fixedly connected to the outer wall of the brake shoe 10.

[0031] When in use, first pass the screw 5 through the surface of the brake arm 3, so that the spring 7 is installed between the two groups of brake arms 3, and then the nut 8 is threadedly connected to the two ends of the screw 5 respectively, so that the nut 8 squeezes the brake arm 3 and the spring fixing baffle 6, thereby fixing the spring 7. When braking the crane, the tightening cylinder 4 extends outward and pushes the brake arm 3 to rotate on the surface of the brake support frame 1, so that the connecting pin shaft 9 at the top of the brake arm 3 slides inside the connecting groove 11, thereby pushing the brake shoe 10 to slide on the surface of the brake support frame 1, so that the surface of the auxiliary brake block 12 fits the surface of the track, and the crane is braked by the friction between the auxiliary brake block 12 and the track, so that the crane is fixed to the specified position, thereby improving the overall usability of the device.

[0032] See also Figure 1 - Figure 4 As shown in the figure, a balancing device is installed on the outer wall of the brake arm 3, and the balancing device includes a connecting sleeve 15, which is installed on the surface of the brake arm 3, and a connecting block 16 is rotatably connected to the inner wall of the connecting sleeve 15, and a connecting plate 17 is rotatably connected to the outer wall of one end of the connecting block 16, and a support block 18 is fixedly connected to the surface of the connecting plate 17.

[0033] When in use, when the brake arm 3 rotates on the surface of the brake support frame 1, it can pull the connecting block 16 through the connecting sleeve 15, so that one end of the connecting block 16 rotates on the surface of the connecting plate 17. The two groups of connecting blocks 16 pull the connecting plate 17, so that the connecting plate 17 will move upward, so that the connecting plate 17 and the two groups of connecting blocks 16 are on the same horizontal line, thereby pushing the support block 18 to move upward, so that the surface of the support block 18 fits with the surface of the track, thereby limiting the brake support frame 1 to prevent the angle of the brake support frame 1 from changing when it stops moving, ensuring that the brake support frame 1 can also maintain balance with the track when it stops moving, and will not affect the brake support frame 1 when it moves again, thereby improving the overall usability of the device.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An auxiliary brake device for a pneumatic monorail crane in a coal mine tunnel, comprising two brake support frames (1) assembled in a mirror-image manner, a brake arm (3) being rotatably connected to the outer wall of the brake support frame (1), and a brake device being mounted on the outer wall of the brake arm (3); Features: The braking device comprises a tightening cylinder (4), the tightening cylinder (4) is mounted on the surface of the brake arm (3), and the two ends of the tightening cylinder (4) are rotatably connected to the brake arm (3), a screw rod (5) is passed through the surface of the brake arm (3), a spring fixing baffle (6) is fixedly connected to the outer wall of the screw rod (5), a spring (7) is fixedly connected to the outer wall of the spring fixing baffle (6), nuts (8) are threadedly connected to the outer walls of both ends of the screw rod (5), a connecting pin shaft (9) is passed through the outer wall of the top end of the brake arm (3), brake shoes (10) are passed through the outer walls of both ends of the connecting pin shaft (9), a connecting groove (11) is provided on the outer wall of the brake shoe (10), and an auxiliary brake block (12) is fixedly connected to the outer wall of the brake shoe (10).

2. The auxiliary brake device of a pneumatic monorail crane in a coal mine tunnel according to claim 1, characterized in that: Two mirror-image-butted and assembled brake arms (3) form a rotating structure with the brake support frame (1) via a spring (7).

3. The auxiliary brake device of a pneumatic monorail crane in a coal mine tunnel according to claim 2, characterized in that: The connecting pin shaft (9) is connected to the brake shoe (10) through a connecting groove (11), and the connecting groove (11) is elliptical.

4. The auxiliary brake device for pneumatic monorail crane in coal mine tunnel according to claim 1, characterized in that: A slide groove (13) is provided on the outer wall of the brake support frame (1), and a slider (14) is fixedly connected to the outer wall of the brake shoe (10) and is slidably connected to the slide groove (13).

5. The auxiliary brake device for pneumatic monorail crane in coal mine tunnel according to claim 1, characterized in that: The surface of the brake support frame (1) is provided with a plurality of groups of running wheels (2), which are symmetrically arranged about a central axis.

6. The auxiliary brake device of a pneumatic monorail crane in a coal mine tunnel according to claim 1, characterized in that: A balancing device is mounted on the outer wall of the brake arm (3), and the balancing device comprises a connecting sleeve (15), wherein the connecting sleeve (15) is mounted on the surface of the brake arm (3), a connecting block (16) is rotatably connected to the inner wall of the connecting sleeve (15), a connecting plate (17) is rotatably connected to the outer wall of one end of the connecting block (16), and a supporting block (18) is fixedly connected to the surface of the connecting plate (17).

7. The auxiliary brake device of a pneumatic monorail crane in a coal mine tunnel according to claim 6, characterized in that: The connecting blocks (16) are symmetrically arranged with respect to the central axis of the connecting plate (17).

8. The auxiliary brake device of a pneumatic monorail crane in a coal mine tunnel according to claim 6, characterized in that: A rubber pad is bonded to the surface of the support block (18).

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