Hybrid monorail crane for coal mine transportation system

Abstract

The present invention relates to a hybrid power monorail crane for a coal mine transportation system, comprising a main track fixed on the top of a tunnel and a traction rope for pulling a transport trolley to walk on the main track, and also comprising a clamping mechanism that can clamp the traction rope, a driving mechanism that can clamp the main track, and a battery walking mechanism that provides power. When the transport trolley is located in a straight tunnel, the clamping mechanism clamps the traction rope and the driving mechanism releases the main track, and the traction rope drives the transport trolley to walk; when passing through a curve or entering a branch tunnel, the clamping mechanism releases the traction rope, the driving mechanism clamps the main track, and the driving mechanism drives the transport trolley to walk. The present invention uses two kinds of power alternately, using the traction rope as power in the straight section of the main track, and using batteries as power at the bend of the main track or when entering a branch tunnel, and at the same time solves the problems of poor endurance and inability to enter a branch tunnel.

Description

Technical Field

[0001] The invention relates to a monorail crane of a transportation system and belongs to the field of coal mine transportation systems. Background Art

[0002] Monorail crane is an underground auxiliary transport locomotive in coal mines. It runs on the monorail in the tunnel. It can not only transport materials, personnel and equipment, but also complete simple lifting and hoisting of underground equipment. It is a multifunctional, high-efficiency and multi-purpose underground auxiliary transport vehicle.

[0003] There are two modes of transportation for existing monorail cranes. The first is to use a traction rope and a winch as a power source. This power source winch has certain pollution during operation and strong endurance, but poor maneuverability and cannot transport the transport trolley to the branch lane. Moreover, when the main track turns sharply, the traction rope will also turn with it, and the traction force of the traction rope will increase in this section, which is easy to cause derailment accidents. The second is to use a battery as a power source. This power source is pollution-free, but has poor endurance and the battery needs to be charged frequently. In order to overcome the shortcomings of the above two power sources, it is necessary to develop a hybrid power monorail crane conveying device that combines the two. Summary of the invention

[0004] The purpose of the present invention is to provide a vehicle that uses two kinds of power alternately, using a traction rope as power in the straight section of the main track, and using a battery as power at the bend of the main track or when entering a branch tunnel, thereby solving the problems of poor endurance and inability to enter a branch tunnel.

[0005] In order to achieve the above-mentioned purpose, the technical solution of the present invention is: a hybrid power monorail crane of a coal mine transportation system, comprising a main track fixed on the top of the tunnel and a traction rope for pulling a transport trolley to walk on the main track, and also comprising a clamping mechanism that can clamp the traction rope, a driving mechanism that can clamp the main track and a battery walking mechanism that provides power. When the transport trolley is located in a straight tunnel, the clamping mechanism clamps the traction rope and the driving mechanism releases the main track, and the transport trolley is driven to walk by the traction rope; when passing a curve or entering a branch tunnel, the clamping mechanism releases the traction rope, the driving mechanism clamps the main track, and the transport trolley is driven to walk by the driving mechanism.

[0006] Preferably, it also includes a flip cylinder, the clamping mechanism has two groups, the two groups of clamping mechanisms are connected by the flip cylinder, each group of clamping mechanisms includes a traction hook rope plate, a rope clamping spring, a rope loosening cylinder, a rotating connecting rod and a rope clamping traction main board, the traction hook rope plate is connected to the rope clamping traction main board for lifting and sliding, the rope loosening cylinder is hinged to one end of the rotating connecting rod, and the other end of the rotating connecting rod is hinged to the bottom of the traction hook rope plate, one end of the rope clamping spring is against the rope clamping traction main board, and the other end is against the rotating connecting rod.

[0007] Preferably, the driving mechanism includes a driving frame, two driving devices installed on the driving frame and a clamping cylinder, the two driving devices are respectively located on both sides of the main track, the two ends of the clamping cylinder are hinged to the corresponding driving devices, the driving device includes a driving motor, a reducer and a driving wheel, the driving motor is transmission connected to the reducer, and the reducer is transmission connected to the driving wheel.

[0008] Preferably, it also includes a braking device, which includes a U-shaped mounting seat, two friction blocks, two brake connecting rods, two brake arms and a brake cylinder, the main track extends into the U-shaped groove of the mounting seat, the two brake arms are respectively located on both sides of the mounting seat, the two friction blocks are slidably connected to the upper part of the mounting seat, and the ends are hinged to the corresponding upper parts of the brake arms and face the main track, one end of the two brake connecting rods is respectively hinged to the middle part of the corresponding brake arm, and the other end is respectively hinged to the mounting seat, and the two ends of the brake cylinder are respectively hinged to the lower part of the corresponding brake arm.

[0009] Preferably, the battery travel mechanism includes a hanger that travels on a main track, a battery pack, and an explosion-proof box installed on the hanger for placing the battery pack.

[0010] Preferably, it also includes a control mechanism, a hydraulic power source, a heat dissipation device and a control frame, the control mechanism, the hydraulic power source and the heat dissipation device are fixed on the control frame, and the control frame travels on the main track.

[0011] Preferably, the driving mechanism, the hanger and the control frame are all connected in sequence via a main connecting rod.

[0012] After adopting the above structure, when the transport trolley is located in a straight lane, the clamp mechanism clamps the traction rope and the driving mechanism releases the main track, and the traction rope drives the transport trolley to move; when passing through a curve or entering a branch lane, the clamp mechanism releases the traction rope, the driving mechanism clamps the main track, and the driving mechanism drives the transport trolley to move. Therefore, the present invention uses two kinds of power alternately, using the traction rope as power in the straight section of the main track, and using batteries as power at the bend of the main track or when entering a branch lane, which solves the problems of poor endurance and inability to enter a branch lane. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the present invention;

[0014] Figure 2 yes Figure 1 Schematic diagram of the middle clamping jaw mechanism;

[0015] Figure 3 yes Figure 2 Left view of

[0016] Figure 4 It is a schematic diagram of the clamping claw mechanism in a clamping state;

[0017] Figure 5 It is a schematic diagram of the clamping jaw mechanism in an open state;

[0018] Figure 6 yes Figure 1 Schematic diagram of the middle drive mechanism;

[0019] Figure 7 yes Figure 6 A top view of

[0020] Figure 8 yes Figure 6 Left view of the middle brake device;

[0021] Fig. 9 It is a schematic diagram of the branch lane;

[0022] Fig.10 This is a schematic diagram of the turning section of the main track. DETAILED DESCRIPTION

[0023] The present invention is further described in detail below with reference to the embodiments given in the accompanying drawings.

[0024] See also Figure 1-8 As shown, a hybrid monorail crane of a coal mine transportation system includes a main track 1 fixed on the top of the tunnel and a traction rope 2 for pulling a transport trolley to travel on the main track 1, and also includes a clamping mechanism 3 that can clamp the traction rope 2, a driving mechanism 4 that can clamp the main track 1 and a battery traveling mechanism 6 that provides power.

[0025] See also Figure 2-5 As shown, since the present application corresponds to a double-rope traction system, reference may be made to CN106335514A, and therefore, there are two main ropes, so the clamping mechanism 3 has two groups, and the two groups of clamping mechanisms 3 are connected by a flip cylinder 36, and each group of clamping mechanisms 3 includes a traction hook rope plate 31, a rope clamping spring 32, a rope loosening cylinder 33, a rotating connecting rod 34 and a rope clamping traction main board 35, and the traction hook rope plate 31 is connected to the rope clamping traction main board 35 by lifting and sliding, and the rope loosening cylinder 33 is hinged to one end of the rotating connecting rod 34, and the other end of the rotating connecting rod 34 is hinged to the bottom of the traction hook rope plate 31, and one end of the rope clamping spring 32 is against the rope clamping traction main board 35, and the other end is against the rotating connecting rod 34.

[0026] The clamp mechanism 3 is the core of the monorail crane. The upper end of the traction hook rope plate 31 has a hook that can hook the traction rope 2. The movement principle is: Figure 4 As shown, in the normally closed state, the traction rope 2 is firmly clamped between the traction hook rope plate 31 and the rope clamp traction main plate 35, mainly relying on the power provided by the rope clamp spring 32; Fig. 9 or Fig.10 For road sections, see Figure 5As shown, the rope loosening cylinder 33 works, driving the rotating connecting rod 34 to rotate. The middle part of the rotating connecting rod 34 is hinged to the rope clamping and traction main board 35, and the other end is hinged to the traction hook rope plate 31, which can drive the traction hook rope plate 31 to rise and disengage the traction rope 2. The two ends of the flipping cylinder 36 are fixedly connected to the corresponding rope clamping and traction main board 35. The flipping cylinder 36 flips the two sets of clamping claw mechanisms 3, which will disconnect the power of the entire monorail crane from the traction rope 2, preparing for the driving mechanism 4 to serve as a power source.

[0027] The driving mechanism 4 includes a driving frame 41, two driving devices 42 installed on the driving frame 41 and a clamping cylinder 43. The two driving devices 42 are respectively located on both sides of the main track 1. The two ends of the clamping cylinder 43 are hinged to the corresponding driving devices 42. The driving device 42 includes a driving motor 421, a reducer 422 and a driving wheel 423. The driving motor 421 is connected to the reducer 422 in a transmission manner, and the reducer 422 is connected to the driving wheel 423 in a transmission manner.

[0028] The working principle of the driving mechanism 4 is as follows: when the clamping mechanism 3 clamps the traction rope 2, the driving wheels 423 of the two driving devices 42 of the driving mechanism 4 are disengaged from the main track 1. Fig. 9 or Fig.10 For road sections, see Figure 7 As shown, the clamping cylinder 43 is started, the two driving wheels 423 clamp the main track 1, and the two driving motors 421 work, with the driving mechanism 4 as the power source.

[0029] It also includes a braking device 5, which includes a U-shaped mounting seat 51, two friction blocks 52, two brake connecting rods 53, two brake arms 54 and a brake cylinder 55. The main track 1 extends into the U-shaped groove of the mounting seat 51, and the two brake arms 54 are respectively located on both sides of the mounting seat 51. The two friction blocks 52 are slidably connected to the upper part of the mounting seat 51, and the ends are hinged to the upper parts of the corresponding brake arms 54 and face the main track 1. One ends of the two brake connecting rods 53 are respectively hinged to the middle parts of the corresponding brake arms 54, and the other ends are respectively hinged to the mounting seat 51. The two ends of the brake cylinder 55 are respectively hinged to the lower parts of the corresponding brake arms 54.

[0030] See also Figure 8 As shown, the working principle of the brake device 5 is: the brake and release are controlled by the brake hydraulic expansion and contraction. When the monorail crane is in operation, the brake cylinder 55 retracts to overcome the resistance of the spring, so that the two brake arms 54 control the two friction blocks 52 to release from the main track 1, and the monorail crane can move freely; when the monorail crane stops, the brake cylinder 55 loses pressure, and the compressed spring clamps the two friction blocks 52 with the main track 1, and the monorail crane stops quickly under the action of friction.

[0031] See also Figure 1As shown, the battery travel mechanism 6 includes a hanger 61 that travels on the main track 1 , a battery pack 62 , and an explosion-proof box 63 installed on the hanger 61 for placing the battery pack 62 .

[0032] The battery travel mechanism 6 provides power to the driving mechanism 4. The battery pack 62 uses a special lead-acid battery for coal mines, and the battery voltage / capacity is DC252V / 350Ah. The hanger 61 is suspended under the main track 1 through a spherical shaft and a pin shaft. The battery pack 62 is composed of 126 special lead-acid batteries for coal mines connected in series. Each single battery is 2V, the total voltage of the battery pack is 252V, and the capacity is 350Ah. The 126 batteries are installed in a special explosion-proof box 63. Two lifting ears extend from the top of the explosion-proof box 63, and are suspended under the hanger 61 through a pin shaft.

[0033] The connecting wire of the battery pack 62 adopts a bipolar column welding structure, and an insulating sheath covers the exposed conductor to prevent sparks from the upper part of the battery. The battery has sufficient ventilation area to ensure that hydrogen is not easy to accumulate in the box.

[0034] The top cover of the explosion-proof box 63 is a quick-open cover on both sides, and the batteries inside the box can be inspected by opening the top covers on both sides. The explosion-proof box 63 and the box cover adopt a pin-tightening device to ensure that the box cover cannot be opened during operation. It also adopts a waterproof and foreign object-proof structure, and the box cover has strong impact resistance, thereby improving the safety strength during operation. The inner wall of the battery pack 62 is covered with a coating with good acid-resistant insulation performance, thereby enhancing the insulation and preventing the box from corrosion.

[0035] See also Figure 1 As shown, the control mechanism 7, hydraulic power source 8, heat sink 9 and control frame 10 are also included. The control mechanism 7, hydraulic power source 8 and heat sink 9 are fixed on the control frame 10, and the control frame 10 travels on the main track 1. The control mechanism 7 is the control center of the entire equipment, the hydraulic power source 8 provides hydraulic power to each hydraulic cylinder, and the heat sink 9 provides the control mechanism 7 with cooling.

[0036] See also Figure 1 As shown, the drive mechanism 4, the hanger 61 and the control frame 10 are sequentially connected through the main connecting rod 20. The above device needs to be operated together with a transport trolley, which can be installed in front of the drive mechanism 4 or at the rear of the control frame 10 through a connecting rod.

[0037] It is worth noting that a turnout needs to be set at the connection between the main track 1 and the branch track, such as Fig. 9 At point A shown, the structure of the turnout is the same as that of patent CN204078707U.

[0038] When switching to branch lane; Fig. 9In the AB section, the operation is from A to B, the clamping mechanism 3 releases the traction rope 2, and the driving mechanism 4 drives the entire transport equipment to operate. The specific working conditions are as follows:

[0039] Attached Fig. 9 When the main lane is about to run to point A, the turnout runs and docks with the branch track, the clamping mechanism 3 releases the traction rope 2 and flips to both sides, and at the same time the driving wheel 423 of the driving mechanism 4 clamps the track, so that the entire transportation equipment runs in the AB section.

[0040] Attached Fig.10 When entering the curved section from the straight section of the main track 1, the clamp mechanism 3 releases the traction rope 2 and flips to both sides, and at the same time, the driving wheel 423 of the driving mechanism 4 clamps the track, so that the entire transport equipment runs in the AB section. In other states, the clamp mechanism 3 clamps the traction rope 2, and the winch is used as the power source to drive the traction rope 2 to drive the transport equipment to run normally.

[0041] The present invention solves the shortcomings of two power sources on the market, and takes advantage of their strengths and avoids their weaknesses. The two power sources are used alternately, using the traction rope as power in the straight section of the main track, and using the battery as power at the bend of the main track or when entering the branch lane, thereby solving the problems of poor endurance and inability to enter the branch lane.

[0042] The above is only a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several modifications and improvements without departing from the inventive concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A hybrid monorail crane for a coal mine transportation system, comprising a main track (1) fixed to the top of a tunnel and a traction rope (2) for pulling a transport trolley on the main track (1), characterized in that: It also includes a clamping mechanism (3) capable of clamping the traction rope (2), a driving mechanism (4) capable of clamping the main track (1), and a battery-powered walking mechanism (6). When the transport trolley is located in a straight lane, the clamping mechanism (3) clamps the traction rope (2), the driving mechanism (4) releases the main track (1), and the transport trolley is driven by the traction rope (2) to walk; when passing through a curve or entering a branch lane, the clamping mechanism (3) releases the traction rope (2), the driving mechanism (4) clamps the main track (1), and the driving mechanism (4) drives the transport trolley to walk; The invention also comprises a tilting oil cylinder (36). The clamping mechanism (3) comprises two groups. The two groups of clamping mechanisms (3) are connected via the tilting oil cylinder (36). Each group of clamping mechanisms (3) comprises a traction hook rope plate (31), a rope clamping spring (32), a rope loosening oil cylinder (33), a rotating connecting rod (34) and a rope clamping traction main board (35). The traction hook rope plate (31) is connected to the rope clamping traction main board (35) by lifting and sliding. The rope loosening oil cylinder (33) is hinged to one end of the rotating connecting rod (34). The other end of the rotating connecting rod (34) is hinged to the bottom of the traction hook rope plate (31). One end of the rope clamping spring (32) abuts against the rope clamping traction main board (35), and the other end abuts against the rotating connecting rod (34).

2. The hybrid monorail crane for coal mine transportation system according to claim 1, characterized in that: The driving mechanism (4) comprises a driving frame (41), two driving devices (42) mounted on the driving frame (41) and a clamping cylinder (43); the two driving devices (42) are respectively located on both sides of the main track (1); both ends of the clamping cylinder (43) are hinged to the corresponding driving devices (42); the driving device (42) comprises a driving motor (421), a reducer (422) and a driving wheel (423); the driving motor (421) is transmission-connected to the reducer (422); and the reducer (422) is transmission-connected to the driving wheel (423).

3. The hybrid monorail crane for coal mine transportation system according to claim 1, characterized in that: The invention also comprises a brake device (5), wherein the brake device (5) comprises a U-shaped mounting seat (51), two friction blocks (52), two brake connecting rods (53), two brake arms (54) and a brake oil cylinder (55); the main track (1) extends into the U-shaped groove of the mounting seat (51); the two brake arms (54) are respectively located on both sides of the mounting seat (51); the two friction blocks (52) are slidably connected to the upper part of the mounting seat (51); and the ends of the two brake connecting rods (53) are hinged to the upper part of the corresponding brake arms (54) and face the main track (1); one end of the two brake connecting rods (53) is respectively hinged to the middle part of the corresponding brake arm (54), and the other end is respectively hinged to the mounting seat (51); and the two ends of the brake oil cylinder (55) are respectively hinged to the lower part of the corresponding brake arm (54).

4. The hybrid monorail crane for coal mine transportation system according to claim 1, characterized in that: The battery travel mechanism (6) comprises a hanger (61) that travels on the main track (1), a battery pack (62), and an explosion-proof box (63) installed on the hanger (61) for accommodating the battery pack (62).

5. The hybrid monorail crane for coal mine transportation system according to claim 4, characterized in that: The vehicle also comprises a control mechanism (7), a hydraulic power source (8), a heat dissipation device (9) and a control frame (10). The control mechanism (7), the hydraulic power source (8) and the heat dissipation device (9) are fixed on the control frame (10), and the control frame (10) travels on the main track (1).

6. The hybrid monorail crane for coal mine transportation system according to claim 5, characterized in that: The driving mechanism (4), the hanger (61) and the control frame (10) are all connected in sequence via a main connecting rod (20).

Images