Monorail hoist driving mechanism suitable for mine conveying operation

Abstract

The utility model discloses a monorail hoist driving mechanism suitable for mine conveying operation, relates to the technical field of monorail hoists, and solves the technical problem that a friction wheel of a monorail hoist cannot be always kept in a tensioning and propping state with a monorail web, so that the friction wheel is easy to wear and is frequently replaced. Comprising a driving part support, the driving part support comprises a cross beam, two end plates and two connecting plates, the two connecting plates are symmetrically welded between the two end plates, the top of the cross beam is welded to the bottoms of the connecting plates, the ends of the cross beam are welded to the side walls of the end plates, and a left holding arm and a right holding arm are rotationally installed on the side walls of the two sides, close to one end, of the cross beam correspondingly; a clamping cylinder used for driving the left holding arm and the right holding arm to deflect is installed on the cross beam, and friction wheels are installed on the top of the left holding arm and the top of the right holding arm respectively. According to the utility model, the friction wheel of the monorail hoist and the monorail web plate are always kept in a tensioning and propping state, so that the friction wheel does not need to be replaced frequently, and the cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of monorail cranes, in particular to a monorail crane driving mechanism suitable for mine transportation operations. Background Art

[0002] In order to transport goods and personnel in special occasions such as coal mine tunnels, highway tunnels, and railway tunnels, a monorail crane is often used. The main advantages of monorail crane transportation are: first, the monorail crane has a small cross-section and high utilization of the tunnel cross-section space; second, it can be used for continuous non-transshipment transportation in horizontal and inclined tunnels. Its transport load is not limited by the bottom plate conditions and can run in various vertical curves, horizontal curves and complex curves; third, it can complete auxiliary transportation from the mining area parking lot to the working face without transfer, and can be used for auxiliary transportation operations connecting the main transportation tunnels and mining area tunnels.

[0003] At present, in order to ensure the stability of the friction wheel rotation, the friction wheels of monorail cranes are mostly fixed structures. When installed, the friction wheels are made to contact with the monorail web. However, with the long-term use of the friction wheels, friction loss will inevitably occur, resulting in the friction wheels being unable to always maintain a tight contact state with the monorail web, which will cause uneven force on the friction wheels of the monorail crane, serious damage, frequent replacement, and increased use costs. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a monorail crane driving mechanism suitable for mine transportation operations, which solves the problem that the friction wheel of the monorail crane cannot always maintain a tensioned contact state with the monorail web, resulting in the friction wheel being easily replaced frequently due to wear.

[0005] To achieve the above-mentioned purpose, according to an embodiment of the first aspect of the utility model, a monorail crane drive mechanism suitable for mine transportation operations is proposed, including a drive unit bracket, the drive unit bracket includes a crossbeam, two end plates and two connecting plates, the two connecting plates are symmetrically welded between the two end plates, the top of the crossbeam is welded to the bottom of the connecting plate, and the end of the crossbeam is welded to the side wall of the end plate, the left arm and the right arm are rotatably installed on the side walls of the crossbeam close to one end, and a clamping cylinder for driving the left arm and the right arm to deflect is installed on the crossbeam, friction wheels are respectively installed on the tops of the left arm and the right arm, and a driving motor for driving the friction wheel to rotate is installed on the bottoms of the left arm and the right arm, brake levers are symmetrically arranged at both ends of the drive unit bracket, a brake cylinder is installed between the two brake levers, a brake spring for resisting the brake lever is sleeved on the brake cylinder, a brake block is provided on the side of the connecting plate away from the brake lever, and a linkage component for driving the brake block is installed on the end of the brake lever.

[0006] As a further technical solution of the present invention, the linkage assembly includes a guide cylinder embedded in the side wall of the connecting plate end, a guide rod is slidably inserted in the guide cylinder, one end of the guide rod is fixedly connected to the brake block, and the other end of the guide rod is rotatably connected to the brake lever through a pin shaft.

[0007] As a further technical solution of the utility model, the two connecting plates are rotatably mounted with running wheels on the opposite sides close to the ends, and the running wheels are used to roll along the length direction of the monorail.

[0008] As a further technical solution of the utility model, a notch is provided on the top of the connecting plate for the friction wheel to partially pass through, and the friction wheel that passes through the notch abuts against the side wall of the monorail web.

[0009] As a further technical solution of the utility model, the top end and the bottom end of the traveling wheel respectively contact with the opposite sides of the upper flange and the lower flange of the monorail.

[0010] As a further technical solution of the utility model, the brake cylinder includes a double-axis brake cylinder, and two output ends of the double-axis brake cylinder are rotatably connected to the brake lever through a pin shaft respectively.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. In the utility model, the friction wheel is driven to rotate by a driving motor, the friction between the friction wheel and the monorail web is used to provide the crane with the power to travel, and the left arm and the right arm are conveniently deflected by the clamping cylinder, so that the friction wheels on the left arm and the right arm are always kept in a tensioned contact state with the monorail web, so that the friction wheels do not need to be frequently replaced, which is conducive to reducing costs.

[0013] 2. In the utility model, the brake spring makes it possible for the monorail crane to be in a braking state when it is not in operation. Since the internal pressure of the brake cylinder is relatively small and the tension of the brake spring is relatively large, the force is applied to the brake block through the brake lever, thereby putting the locomotive in a braking state. When the hydraulic oil enters the brake cylinder from the piston rod end, the brake lever is driven to contract, the brake block is opened, and the braking state of the locomotive is released, thereby facilitating safe braking of the monorail crane. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a first-view stereoscopic diagram of the monorail crane driving mechanism suitable for mine transportation operations of the utility model;

[0015] Figure 2 This is a second perspective stereoscopic diagram of the monorail crane driving mechanism of the utility model suitable for mine transportation operations.

[0016] In the figure: 1. Drive unit bracket; 101. Crossbeam; 102. End plate; 103. Connecting plate; 2. Friction wheel; 3. Travel wheel; 4. Brake block; 5. Brake lever; 6. Left arm; 7. Drive motor; 8. Right arm; 9. Brake spring; 10. Clamping cylinder; 11. Brake cylinder; 12. Guide cylinder; 13. Guide rod. DETAILED DESCRIPTION

[0017] The technical solution of the utility model will be described clearly and completely in conjunction with the embodiments below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of 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.

[0018] like Figure 1-2 As shown, a monorail crane driving mechanism suitable for mining transportation operations includes a driving unit bracket 1, which includes a crossbeam 101, two end plates 102 and two connecting plates 103. The two connecting plates 103 are symmetrically welded between the two end plates 102, the top of the crossbeam 101 is welded to the bottom of the connecting plate 103, and the end of the crossbeam 101 is welded to the side wall of the end plate 102, which is beneficial to improving the overall structural strength of the driving unit bracket 1.

[0019] The left arm 6 and the right arm 8 are rotatably installed on the side walls of the beam 101 near one end, and a clamping cylinder 10 for driving the left arm 6 and the right arm 8 to deflect is installed on the beam 101. Friction wheels 2 are installed on the top of the left arm 6 and the right arm 8 respectively. A notch is opened on the top of the connecting plate 103 for partially passing the friction wheel 2, and the passing part of the friction wheel 2 conflicts with the side wall of the monorail web. A driving motor 7 for driving the friction wheel 2 to rotate is installed on the bottom of the left arm 6 and the right arm 8. The engine on the main vehicle drives the main pump to run, converts mechanical energy into hydraulic energy, and then converts it into mechanical energy by driving the hydraulic motor 7, thereby driving the friction wheel 2 to rotate.

[0020] Traveling wheels 3 are rotatably installed on the opposite sides of the two connecting plates 103 near the ends. The traveling wheels 3 are used to roll along the length direction of the monorail. In this embodiment, the monorail is an I-shaped structure, and the top and bottom ends of the traveling wheels 3 respectively contact the opposite sides of the upper flange and the lower flange of the monorail, which is convenient for limiting the traveling wheels 3 and avoiding jumping during the walking process, thereby further improving the walking stability of the monorail crane.

[0021] Brake levers 5 are symmetrically arranged at both ends of the driving unit bracket 1. In the present embodiment, the brake lever 5 adopts a double-rod parallel design so that the torque during braking is dispersed, thus avoiding the concentrated impact force when a single lever is used, reducing wear and effectively improving the service life of the brake arm. A brake cylinder 11 is installed between the two brake levers 5. The brake cylinder 11 includes a double-axis brake cylinder, and the two output ends of the double-axis brake cylinder are rotatably connected to the brake lever 5 through a pin shaft respectively. A brake spring 9 for resisting the brake lever 5 is sleeved on the brake cylinder 11, and a brake block 4 is provided on the side of the connecting plate 103 away from the brake lever 5.

[0022] A linkage assembly for driving the brake block 4 is installed at the end of the brake lever 5, and the linkage assembly includes a guide cylinder 12 embedded in the side wall of the end of the connecting plate 103, and a guide rod 13 is slidably inserted in the guide cylinder 12. One end of the guide rod 13 is fixedly connected to the brake block 4, and the other end of the guide rod 13 is rotatably connected to the brake lever 5 through a pin shaft, so that the brake lever 5 drives the guide rod 13 when deflected, and the guide cylinder 12 limits the guide rod 13, so that when the brake lever 5 is deflected, the guide rod 13 can only slide along the guide cylinder 12, thereby controlling the single-rail web of the brake block 4 to conflict or separate.

[0023] The working principle of the utility model is as follows: the engine on the main locomotive of the monorail crane drives the main pump to run, converts mechanical energy into hydraulic energy, and then converts it into mechanical energy by driving the hydraulic motor 7, thereby driving the friction wheel 2 to rotate. At the same time, the clamping cylinder 10 drives the left arm 6 and the right arm 8 to deflect, so that the friction wheel 2 is always in tight contact with the monorail web. The friction between the friction wheel 2 and the monorail web is used to provide the crane with the power to travel. When the monorail crane is running, the hydraulic oil will enter the brake cylinder 11 from the piston rod end, driving the two brake levers 5 at the end to deflect toward each other. When deflecting, the guide rod 13 is pulled to slide along the guide cylinder 12, so that the brake block 4 can be opened and the locomotive is released from the braking state. Similarly, when the monorail crane stops running, the internal pressure of the brake cylinder 11 is small and the tension of the brake spring 9 is large, and the force is applied to the brake block 4 through the brake lever 5, so that the locomotive is in a braking state.

[0024] The above embodiments are only used to illustrate the technical method of the utility model rather than to limit it. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical method of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the utility model.

Claims

1. A monorail crane drive mechanism suitable for mine transportation operations, comprising a drive unit bracket (1), characterized in that: The driving part bracket (1) comprises a crossbeam (101), two end plates (102) and two connecting plates (103), the two connecting plates (103) are symmetrically welded between the two end plates (102), the top of the crossbeam (101) is welded to the bottom of the connecting plate (103), and the end of the crossbeam (101) is welded to the side wall of the end plate (102), and the left arm (6) and the right arm (8) are rotatably mounted on the side walls of the crossbeam (101) near one end, and a clamping cylinder (10) for driving the left arm (6) and the right arm (8) to deflect is mounted on the crossbeam (101), and the left arm (6) and the right arm (8) are rotatably mounted on the side walls of the crossbeam (101). The top of the arm (8) is respectively provided with a friction wheel (2), and the bottom of the left arm (6) and the right arm (8) is provided with a driving motor (7) for driving the friction wheel (2) to rotate. Braking levers (5) are symmetrically arranged at both ends of the driving part bracket (1), a braking cylinder (11) is installed between the two braking levers (5), and a braking spring (9) for resisting the braking lever (5) is sleeved on the braking cylinder (11). A braking block (4) is provided on the side of the connecting plate (103) away from the braking lever (5), and a linkage component for driving the braking block (4) is installed at the end of the braking lever (5).

2. The monorail crane driving mechanism suitable for mine transportation operation according to claim 1, characterized in that: The linkage assembly comprises a guide cylinder (12) mounted on the side wall of the end of the connecting plate (103), a guide rod (13) being slidably inserted in the guide cylinder (12), one end of the guide rod (13) being fixedly connected to the brake block (4), and the other end of the guide rod (13) being rotatably connected to the brake lever (5) via a pin shaft.

3. The monorail crane driving mechanism suitable for mine transportation operation according to claim 1, characterized in that: Travel wheels (3) are rotatably mounted on the opposite sides of the two connecting plates (103) near the ends, and the travel wheels (3) are used to roll along the length direction of the monorail.

4. The monorail crane driving mechanism suitable for mine transportation operation according to claim 1, characterized in that: A notch is provided on the top of the connecting plate (103) for the friction wheel (2) to partially pass through, and the friction wheel (2) that passes through is in contact with the side wall of the monorail web.

5. The monorail crane driving mechanism suitable for mine transportation operation according to claim 3, characterized in that: The top end and the bottom end of the running wheel (3) respectively contact the opposite sides of the upper flange and the lower flange of the monorail.

6. The monorail crane driving mechanism suitable for mine transportation operation according to claim 1, characterized in that: The brake cylinder (11) comprises a double-axis brake cylinder, and two output ends of the double-axis brake cylinder are rotationally connected to the brake lever (5) via pins respectively.

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