Disclosure of Invention
The invention aims to provide a device which adopts two types of power to be used alternately, adopts a traction rope as power at a straight section of a main track, adopts a storage battery as power when the main track turns or needs to enter a branch roadway, and simultaneously solves the problems of poor cruising ability and incapability of entering the branch roadway.
The technical scheme is that the hybrid power monorail crane comprises a main rail fixed on the top of a roadway, a traction rope for traction of a transportation trolley on the main rail, a clamping jaw mechanism capable of clamping the traction rope, a driving mechanism capable of clamping the main rail and a storage battery running mechanism for providing power, wherein when the transportation trolley is placed on a straight roadway, the clamping jaw mechanism clamps the traction rope driving mechanism to loosen the main rail, the traction rope drives the transportation trolley to run, and when the transportation trolley passes through a bend or enters a branch roadway, the clamping jaw mechanism loosens the traction rope, the driving mechanism clamps the main rail, and the driving mechanism drives the transportation trolley to run.
Preferably, the rope clamping device further comprises a turnover oil cylinder, the clamping jaw mechanisms are provided with two groups, the two groups of clamping jaw mechanisms are connected through the turnover oil cylinder, each group of clamping jaw mechanisms comprises a traction rope hooking plate, a rope clamping spring, a rope loosening oil cylinder, a rotary connecting rod and a rope clamping traction main plate, the traction rope hooking plates are in lifting sliding connection with the rope clamping traction main plate, the rope loosening oil cylinder is hinged with one end of the rotary connecting rod, the other end of the rotary connecting rod is hinged with the bottom of the traction rope hooking plates, one end of the rope clamping spring is propped against the rope clamping traction main plate, and the other end of the rope clamping spring is propped against the rotary connecting rod.
Preferably, the driving mechanism comprises a driving frame, two driving devices and a clamping oil cylinder, wherein the two driving devices and the clamping oil cylinder are arranged on the driving frame, the two driving devices are respectively positioned on two sides of the main rail, two ends of the clamping oil cylinder are hinged with the corresponding driving devices, the driving devices comprise a driving motor, a speed reducer and a driving wheel, the driving motor is in transmission connection with the speed reducer, and the speed reducer is in transmission connection with the driving wheel.
Preferably, the brake device comprises a U-shaped mounting seat, two friction blocks, two brake connecting rods, two brake arms and a brake oil cylinder, wherein the main rail stretches into the U-shaped groove of the mounting seat, the two brake arms are respectively positioned at two sides of the mounting seat, the two friction blocks are in sliding connection with the upper part of the mounting seat, the end parts of the two friction blocks are hinged with the upper parts of the corresponding brake arms and face the main rail, one ends of the two brake connecting rods are respectively hinged at the middle parts of the corresponding brake arms, the other ends of the two brake connecting rods are respectively hinged on the mounting seat, and the two ends of the brake oil cylinder are respectively hinged at the lower parts of the corresponding brake arms.
Preferably, the storage battery running mechanism comprises a hanging bracket running on the main rail, a battery pack and an explosion-proof box body arranged on the hanging bracket and used for placing the battery pack.
Preferably, the device also comprises a control mechanism, a hydraulic power source, a heat dissipation device and a control frame, wherein the control mechanism, the hydraulic power source and the heat dissipation device are fixed on the control frame, and the control frame walks on the main rail.
Preferably, the driving mechanism, the hanging bracket and the control frame are sequentially connected through the main connecting rod.
After the structure is adopted, when the transportation trolley is placed in a straight roadway, the clamping jaw mechanism clamps the traction rope driving mechanism to loosen the main rail, the traction rope drives the transportation trolley to walk, and when the transportation trolley passes through a bend or enters a branch roadway, the clamping jaw mechanism loosens the traction rope, the driving mechanism clamps the main rail, and the driving mechanism drives the transportation trolley to walk. The invention adopts two kinds of power to use alternately, adopts the haulage rope as power in the straight section of the main track, adopts the storage battery as power when the main track turns or needs to enter the branch tunnel, and simultaneously solves the problems of poor cruising ability and incapability of entering the branch tunnel.
Detailed Description
The invention is described in further detail below with reference to examples given in the accompanying drawings.
Referring to fig. 1-8, a hybrid monorail crane of a coal mine transportation system comprises a main rail 1 fixed at the top of a roadway, a traction rope 2 for traction of a transportation trolley on the main rail 1, a clamping jaw mechanism 3 capable of clamping the traction rope 2, a driving mechanism 4 capable of clamping the main rail 1 and a storage battery running mechanism 6 for providing power.
Referring to fig. 2-5, since the application is a dual-rope traction system, reference is made to CN106335514a, so that two main ropes are provided, so that two groups of jaw mechanisms 3 are provided, the two groups of jaw mechanisms 3 are connected through a turnover cylinder 36, each group of jaw mechanisms 3 comprises a traction hook rope plate 31, a rope clamping spring 32, a rope loosening cylinder 33, a rotary connecting rod 34 and a rope clamping traction main plate 35, the traction hook rope plate 31 is connected with the rope clamping traction main plate 35 in a lifting sliding manner, the rope loosening cylinder 33 is hinged with one end of the rotary connecting rod 34, the other end of the rotary connecting rod 34 is hinged with the bottom of the traction hook rope plate 31, one end of the rope clamping spring 32 is propped against the rope clamping traction main plate 35, and the other end of the rope clamping spring 32 is propped against the rotary connecting rod 34.
The clamping jaw mechanism 3 is a core of the monorail crane, the upper end part of the traction hook rope plate 31 is provided with a hook claw which can hook the traction rope 2, and the principle of the movement is that the traction rope 2 is firmly clamped between the traction hook rope plate 31 and the rope clamping traction main plate 35 mainly by virtue of power provided by the rope clamping springs 32 in a normally closed state as shown in fig. 4, when the monorail crane is positioned on a road section shown in fig. 9 or 10, the rope loosening oil cylinder 33 works to drive the rotary connecting rod 34 to rotate, the middle part of the rotary connecting rod 34 is hinged with the rope clamping traction main plate 35, the other end of the rotary connecting rod 34 is hinged with the traction hook rope plate 31, the traction hook rope plate 31 can be driven to ascend to separate the traction rope 2, the two ends of the turnover oil cylinders 36 are fixedly connected to the corresponding rope clamping traction main plate 35, and the turnover oil cylinders 36 turn over the two groups of the clamping jaw mechanisms 3, so that the whole monorail crane is separated from the power of the traction rope 2, and the driving mechanism 4 is used as a power source.
The driving mechanism 4 comprises a driving frame 41, two driving devices 42 and a clamping oil cylinder 43, wherein the two driving devices 42 and the clamping oil cylinder 43 are arranged on the driving frame 41, the two driving devices 42 are respectively positioned on two sides of the main track 1, two ends of the clamping oil cylinder 43 are hinged with the corresponding driving devices 42, the driving devices 42 comprise a driving motor 421, a speed reducer 422 and a driving wheel 423, the driving motor 421 is in transmission connection with the speed reducer 422, and the speed reducer 422 is in transmission connection with the driving wheel 423.
The driving mechanism 4 works on the principle that when the gripper mechanism 3 grips 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. When the vehicle is on the road section of fig. 9 or 10, referring to fig. 7, the clamping cylinder 43 is started, the two driving wheels 423 clamp the main rail 1, and the two driving motors 421 operate to drive the mechanism 4 as a power source.
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 rail 1 stretches into a U-shaped groove of the mounting seat 51, the two brake arms 54 are respectively located on two sides of the mounting seat 51, the two friction blocks 52 are in sliding connection with the upper portion of the mounting seat 51, the end portions of the two friction blocks 52 are hinged to the upper portions of the corresponding brake arms 54 and face the main rail 1, one ends of the two brake connecting rods 53 are respectively hinged to the middle portions of the corresponding brake arms 54, the other ends of the two brake connecting rods are respectively hinged to the mounting seat 51, and two ends of the brake oil cylinder 55 are respectively hinged to the lower portions of the corresponding brake arms 54.
The working principle of the braking device 5, see fig. 8, is that it is controlled to brake and release by means of a brake hydraulic extension. When the monorail crane is in an operating state, the brake oil cylinders 55 retract to overcome the resistance of the springs, so that the two brake arms 54 control the two friction blocks 52 to be loosened from the main track 1, the monorail crane can freely run, when the monorail crane is stopped, the brake oil cylinders 55 lose pressure, and the compressed springs enable the two friction blocks 52 to be clamped with the main track 1, so that the monorail crane is stopped rapidly under the action of friction force.
Referring to fig. 1, the battery running gear 6 includes a hanger 61 running on the main rail 1, a battery pack 62, and an explosion-proof case 63 mounted on the hanger 61 for placing the battery pack 62.
The battery running mechanism 6 provides power for the driving mechanism 4, the battery pack 62 adopts special lead-acid batteries for coal mines, the battery voltage/electric quantity is DC252V/350Ah, the hanging frame 61 is suspended below the main track 1 through a spherical shaft and a pin shaft, and the battery pack 62 is formed by serially combining 126 special lead-acid batteries under coal mines. Each section of the single storage battery is 2V, the total voltage of the storage battery pack is 252V, and the capacity is 350Ah. The 126 battery is arranged in the special explosion-proof box 63, and the top of the explosion-proof box 63 extends out of the two lifting lugs back and forth and is suspended below the hanging frame 61 through a pin shaft.
The connection lines of the battery pack 62 are of a bipolar post-welded construction with an insulating jacket covering the bare conductor to prevent sparks from occurring at the upper portion of the battery. The storage battery is provided with enough ventilation area, so that the hydrogen in the tank is not easy to accumulate.
The top cover of the explosion-proof box 63 is a two-side quick opening cover, and the storage battery in the box can be overhauled by opening the top covers on the two sides. The explosion-proof box 63 and the box cover adopt a pin-fastening device, so that the box cover can not be opened in operation, a waterproof and foreign object-proof structure is adopted, and the box cover has strong shock resistance, thereby improving the safety strength in operation. The inner walls of the battery pack 62 are covered with a good acid-resistant insulating layer, thereby enhancing the insulation and avoiding corrosion of the case.
Referring to fig. 1, the vehicle further comprises a control mechanism 7, a hydraulic power source 8, a heat dissipating device 9 and a control frame 10, wherein the control mechanism 7, the hydraulic power source 8 and the heat dissipating device 9 are fixed on the control frame 10, and the control frame 10 walks on the main rail 1. The control mechanism 7 is a control center of the whole equipment, the hydraulic power source 8 provides hydraulic power for the hydraulic cylinders, and the heat dissipation device 9 provides cooling for the control mechanism 7.
Referring to fig. 1, the drive mechanism 4, hanger 61, and control frame 10 are all connected in sequence by a main link 20. The above devices need to be operated with a transport trolley which can be mounted in front of the drive mechanism 4 by means of a link or in rear of the control frame 10.
It should be noted that, at the junction between the main track 1 and the branch track, a switch needs to be set, as shown in fig. 9 at point a, and the structure of the switch is the same as that of patent CN 204078707U.
In the case of switching to a branch roadway, in the section AB in the attached figure 9, the clamping jaw mechanism 3 loosens the traction rope 2 from A to B, and the driving mechanism 4 drives the whole transportation equipment to operate, and the specific working conditions are as follows:
In fig. 9, when the main roadway is about to run to the position A, the turnout runs and is in butt joint with the branch rail, the clamping jaw mechanism 3 loosens the traction rope 2 and turns over to two sides, and meanwhile, the driving wheel 423 of the driving mechanism 4 clamps the rail, so that the whole transportation equipment runs in the section AB.
In fig. 10, when the straight section of the main track 1 enters the turning section, the clamping jaw mechanism 3 loosens the traction rope 2 and turns over to two sides, and meanwhile, the driving wheel 423 of the driving mechanism 4 clamps the track, so that the whole transportation equipment runs in the AB section. In other states, the traction rope 2 is clamped by the clamping jaw mechanism 3, and the winch is used as a power source to drive the transportation equipment to normally operate.
The invention solves the defects of two power sources in the market, takes the advantages of the two power sources and avoids the shortages of the two power sources. The two types of power are used alternately, the traction rope is used as the power at the straight section of the main track, and the storage battery is used as the power when the main track turns or needs to enter the branch tunnel, so that the problems of poor cruising ability and incapability of entering the branch tunnel are solved.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and improvements could be made by those skilled in the art without departing from the inventive concept, which falls within the scope of the present invention.