CN213008091U

CN213008091U - Monorail crane vehicle

Info

Publication number: CN213008091U
Application number: CN202021575099.5U
Authority: CN
Inventors: 刘春�; 姚福江; 郜红莉; 寇明妍; 刘彦伟; 杨述贞; 耿欣; 邓杰; 唐绍彬; 滕斐
Original assignee: Shandong Energy Heavy Equipment Group Luzhong Manufacturing Equipment Co ltd
Current assignee: Shandong Energy Equipment Group Luzhong Equipment Manufacturing Co ltd
Priority date: 2020-07-31
Filing date: 2020-07-31
Publication date: 2021-04-20
Anticipated expiration: 2030-07-31

Abstract

The utility model discloses a monorail crane car, including the power house that is used for detecting and controlling monorail crane car functioning speed's overspeed signaling apparatus that tests the speed, is used for driving a plurality of drive arrangement of monorail crane car operation and is used for providing power for drive arrangement, the power house hangs on the guide rail at monorail crane car place through testing the speed and speeding signaling apparatus and one of them drive arrangement, be provided with hydraulic system in the power house, drive arrangement with hydraulic system connects, hydraulic system includes the motor of hydraulic pump group and the operation of drive hydraulic pump group. The monorail crane locomotive takes the motor as a power source, external electric energy is converted into hydraulic energy required by the operation of the monorail crane locomotive through a hydraulic system of the monorail crane locomotive, the monorail crane locomotive has the advantages of high load, low noise and no tail gas emission, and the working environment is greatly improved.

Description

Monorail crane vehicle

Technical Field

The utility model belongs to the coal mine equipment field, specifically speaking relate to a single track locomotive.

Background

The monorail crane vehicle is a mine auxiliary transportation device, a guide rail of the monorail crane vehicle is suspended at the top of a roadway, the monorail crane vehicle is movably suspended below the guide rail, and the monorail crane vehicle can be used for carrying goods, transporting personnel and the like when running below the guide rail. At present, a monorail crane mainly comprises a diesel engine monorail crane, a pneumatic monorail crane, a storage battery electric monorail crane and the like, wherein the diesel engine monorail crane is auxiliary transportation equipment taking a diesel engine as a power source and has the advantage of large load, but tail gas generated by the diesel engine is an important pollution source in a mine in the use process, especially when the monorail crane is used in narrow spaces such as a fully mechanized mining moving house and the like, the air pollution is more serious, the fully mechanized mining moving house refers to that the auxiliary transportation equipment is utilized to transfer equipment, materials and the like in a fully mechanized mining working face to a next specified position, the space of the fully mechanized mining working face is narrow and the air quality is poor under common conditions; although the pneumatic monorail crane has no defect of tail gas pollution, the pneumatic monorail crane is small in load, cannot transport large equipment such as supports and the like, and is only suitable for transporting some small goods; the electric monorail crane with the storage battery is used as a power source, has the advantages of large load and no tail gas pollution, but has a long charging period, usually needs a standby battery pack, and has a short service life. Secondly, the guide rail of the monorail crane is arranged along an underground roadway, the length of the guide rail is long and is arranged along the trend of the roadway, the guide rail is inclined downwards in the roadway, namely, the guide rail runs downhill below the guide rail relative to the monorail crane, the running speed of the monorail crane on the guide rail is increased, if the monorail crane does not brake, accidents are easily caused, the existing monorail crane has a single braking mode, and the requirement of the monorail crane on running safety is difficult to meet.

To the above-mentioned problem, put forward the utility model discloses specially.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems, a monorail crane is proposed. In order to achieve the above object, the utility model provides a following technical scheme:

a monorail crane comprises a speed-measuring and overspeed signaling device, a plurality of driving devices and a power room, wherein the speed-measuring and overspeed signaling device is used for detecting and controlling the running speed of the monorail crane, the driving devices are used for driving the monorail crane to run, the power room is used for providing power for the driving devices, the power room is hung on a guide rail where the monorail crane is located through the speed-measuring and overspeed signaling device and one of the driving devices, a hydraulic system is arranged in the power room, the driving devices are connected with the hydraulic system, and the hydraulic system comprises a hydraulic pump group and a motor for driving the hydraulic pump group to run.

Preferably, still include control system, control system set up in the power house, the power house is the box structure, both sides are provided with the illumination warning light that is used for the illumination or warns respectively around the single track loop wheel machine traffic direction along the power house, illumination warning light and hydraulic system respectively with control system communication connection.

Preferably, the two adjacent driving devices, the speed-measuring overspeed signaling device and the driving device adjacent to the speed-measuring overspeed signaling device are hinged through pull rods, each driving device comprises a driving support, two groups of first suspension wheels arranged on the driving support and used for installing the driving device on a guide rail where the monorail crane vehicle is located, a driving wheel arranged between the two groups of first suspension wheels, a hydraulic motor connected with the driving wheel and used for driving the driving wheel to rotate, a braking assembly arranged on the driving support and a first suspension assembly arranged at the lower part of the driving support and used for suspending a power chamber, each group of first suspension wheels comprises two first suspension wheels, the two first suspension wheels of each group are respectively arranged on two sides of the guide rail where the monorail crane vehicle is located, and each braking assembly comprises a braking oil cylinder, a braking oil cylinder and a first suspension wheel which are arranged on the driving support, The brake pads are arranged on two sides of the guide rail where the monorail crane car is located, the brake springs are arranged on the brake oil cylinders and used for pushing the brake pads to brake, and the hydraulic motor and the brake oil cylinders are respectively connected with the hydraulic system.

Preferably, the speed-measuring and overspeed-signaling device comprises a U-shaped frame, two opposite sides of the U-shaped frame are respectively provided with a speed-measuring component for detecting the running speed of the monorail crane and an overspeed-signaling component for detecting the overspeed of the monorail crane and triggering the braking of the braking component of the driving device, the overspeed-signaling component comprises a second friction wheel which is arranged inside the U-shaped frame and used for being in close contact with a guide rail where the monorail crane is located and rotating and advancing along with the monorail crane, and a second tachometer wheel which is arranged outside the U-shaped frame and rotates along with the rotation of the second friction wheel, an overspeed-braking valve for activating the braking component of the driving device to brake is arranged beside the second tachometer wheel, and the second tachometer wheel is provided with an overspeed-triggering component for opening the overspeed-braking valve when the monorail crane runs.

Preferably, a groove is formed in the second tachometer wheel, the trigger assembly is arranged in the groove and comprises an elastic part and a touch part, one end of the elastic part is fixedly connected to the bottom of the groove, the other end of the elastic part is fixedly connected with the touch part, a pressing block is arranged between the overspeed brake valve and the second tachometer wheel, the middle of the pressing block is rotatably connected to the U-shaped frame, one end of the pressing block is pressed on the overspeed brake valve to enable the overspeed brake valve to be in a closed state, the other end of the pressing block is opposite to the second tachometer wheel, a gap for rotation of the second tachometer wheel is reserved between the other end of the pressing block and the second tachometer wheel, and the trigger assembly and the pressing block are matched to enable the trigger assembly to touch the pressing block to deflect to achieve opening of the overspeed brake valve when the monorail crane car is in overspeed.

Preferably, the device also comprises a second fixed plate, a second tensioning plate fixedly connected with the second fixed plate and a second spring used for enabling the second friction wheel to be in close contact with a guide rail where the monorail crane is located, the second friction wheel and the second speed measuring wheel are connected through a second central shaft, a second through hole is arranged on the U-shaped frame corresponding to the second speed measuring wheel and the second friction wheel, the second central shaft passes through a second through hole, the aperture of the second through hole is larger than the diameter of the second central shaft, a second bearing is arranged on the second central shaft and is arranged on the outer side of the U-shaped frame, one end of the second fixing plate is rotatably connected to the U-shaped frame at the second through hole, the second bearing is fixedly connected to the second fixing plate, one end of the second spring is connected to the second tensioning plate, and the other end of the second spring is connected to the U-shaped rack.

Preferably, the speed measuring component comprises a first friction wheel which is arranged inside the U-shaped rack and is used for being in close contact with a guide rail where the monorail crane vehicle is located and advancing along with the rotation of the monorail crane vehicle, a first speed measuring wheel which is arranged outside the U-shaped rack and rotates along with the rotation of the first friction wheel, and a rotating speed measuring sensor which is arranged beside the first speed measuring wheel and is used for detecting the rotating speed of the first speed measuring wheel.

Preferably, still include the alarm, first tachometer wheel is gear shape structure, rotational speed measurement sensor is high-speed count sensor, high-speed count sensor detects the protruding number of first tachometer wheel operation in-process through high-speed count sensor, high-speed count sensor is connected with the control system communication, and control system receives the data that high-speed count sensor acquireed and converts the linear velocity into first tachometer wheel through the calculation, alarm and control system control connection.

Preferably, the device also comprises a first fixed plate, a first tensioning plate fixedly connected with the first fixed plate and a first spring used for enabling the first friction wheel to be in close contact with a guide rail where the monorail crane is located, the first friction wheel and the first speed measuring wheel are connected through a first central shaft, a first through hole is arranged on the U-shaped frame corresponding to the first speed measuring wheel and the first friction wheel, the first central shaft passes through a first through hole, the aperture of the first through hole is larger than the diameter of the first central shaft, the first central shaft is provided with a first bearing which is arranged at the outer side of the U-shaped frame, one end of the first fixing plate is rotatably connected to the U-shaped frame at the first through hole, the first bearing is fixedly connected to the first fixing plate, one end of the first spring is connected to the first tensioning plate, and the other end of the first spring is connected to the U-shaped rack.

Preferably, two sets of second suspension wheels used for installing the U-shaped frame on a guide rail where the monorail crane is located are arranged on two opposite sides of the U-shaped frame, the second suspension wheels are rotatably connected to the U-shaped frame, the speed measuring component and the overspeed signaling component are arranged oppositely, and the two sets of second suspension wheels are respectively arranged on two sides of the speed measuring component and two sides of the overspeed signaling component.

Has the advantages that:

the utility model provides a monorail crane which takes a motor as a power source, converts external electric energy into hydraulic energy required by the operation of the monorail crane through a hydraulic system of the monorail crane, has the advantages of heavy load, low noise and no tail gas emission, and greatly improves the working environment; the monorail crane vehicle is also provided with a power room, the power room is hung on a guide rail where the monorail crane vehicle is located through a speed and overspeed signaling device and one of driving devices, and the length of the monorail crane vehicle can be greatly shortened through the arrangement mode; the monorail crane is provided with a speed-measuring and overspeed-transmitting device, the speed-measuring and overspeed-transmitting device is provided with a speed-measuring component and an overspeed-transmitting component, the speed-measuring component monitors the running speed of the monorail crane in real time, the speed-measuring component is in communication connection with a control system of the monorail crane, the control of the running speed of the monorail crane is realized through the control system of the monorail crane, the running speed of the monorail crane is ensured to be within a set range, the overspeed-transmitting component monitors the set maximum running speed of the monorail crane, when the running speed of the monorail crane exceeds the set maximum running speed, the overspeed-transmitting component activates a braking component of a driving device to brake, the speed-measuring component and the overspeed-transmitting component are matched to realize double monitoring of the running speed of the monorail crane, double guarantee is provided for the running of the monorail crane, and the running speed of the monorail crane is ensured to be within the set range, the running safety of the monorail crane is improved.

Drawings

Fig. 1 is a schematic structural view of the monorail crane of the utility model.

Fig. 2 is a schematic structural diagram of the driving device.

Fig. 3 is a schematic diagram of the speed measuring and overspeed signaling device.

Fig. 4 is a schematic structural diagram of the speed measuring and overspeed signaling apparatus.

Fig. 5 is a schematic structural view of another angle of the speed measuring and overspeed signaling apparatus.

In the figure: 100-power house, 101-cable, 102-heat dissipation hole, 103-lighting warning lamp, 104-hydraulic pipeline, 200-speed measuring and overspeed signaling device, 210-second suspension wheel, 220-speed measuring component, 221-first friction wheel, 222-first speed measuring wheel, 230-overspeed signaling component, 231-touch piece, 232-elastic piece, 233-second speed measuring wheel, 234-second friction wheel, 235-press block, 240-overspeed brake valve, 250-first spring, 260-speed measuring sensor, 270-U-shaped frame, 271-first fixing plate, 272-first tensioning plate, 273-second fixing plate, 274-second tensioning plate, 275-second suspension shaft, 276-second suspension plate, 277-second bolt, 278-first bolt, 280-second spring, 300-driving device, 301-driving support, 302-first suspension wheel, 303-hydraulic motor, 304-driving wheel, 305-brake cylinder, 306-brake spring, 307-connecting plate, 308-brake pad, 400-rail, 500-pull rod.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the following description, together with the drawings of the present invention, clearly and completely describes the technical solution of the present invention, and based on the embodiments in the present application, other similar embodiments obtained by those skilled in the art without creative efforts shall all belong to the protection scope of the present application.

As shown in fig. 1, the monorail crane provided in this embodiment includes an operating device for operating the monorail crane, a control system, a speed and overspeed signaling device 200 for detecting and controlling the running speed of the monorail crane, a plurality of driving devices 300 for driving the monorail crane to run, and a power room 100 for providing power for the driving devices 300, the control system is in communication connection with the operating device, the control system is disposed in the power room 100, a hydraulic system is further disposed in the power room 100, the power room 100 is a box structure, the power room 100 is provided with lighting warning lamps 103 for lighting or warning respectively at front and rear sides along the running direction of the monorail crane, the lighting warning lamps 103 and the hydraulic system are in communication connection with the control system respectively, each lighting warning lamp 103 has two colors, namely white color and red color, when the monorail crane runs, the lighting warning lamps 103 are automatically switched to the corresponding color, the lighting warning lamp 103 in the running direction of the locomotive is white light, the other lighting warning lamp 103 is red, and the lighting warning lamp 103 maintains the running color when the locomotive stops running.

The power room 100 is hung on a guide rail 400 where the monorail crane vehicle is located through the speed-measuring overspeed signaling device 200 and one of the driving devices 300, the driving device 300 is connected with a hydraulic system, the hydraulic system comprises a hydraulic pump set and a motor driving the hydraulic pump set to operate, and the motor is an explosion-proof motor. The two adjacent driving devices 300, the speed measuring and over-speed transmitting device 200 and the driving device 300 adjacent to the speed measuring and over-speed transmitting device 200 are hinged through a pull rod 500.

As shown in fig. 2, the driving device 300 comprises a driving bracket 301, two sets of first suspension wheels 302 arranged on the driving bracket 301 for mounting the driving device 300 on a guide rail 400 where the monorail crane is located, a driving wheel 304 arranged between the two sets of first suspension wheels 302, a hydraulic motor 303 connected with the driving wheel 304 for driving the driving wheel 304 to rotate, a braking assembly arranged on the driving bracket 301, and a first suspension assembly arranged at the lower part of the driving bracket 301 for suspending the power room 100, wherein each set of first suspension wheels 302 comprises two first suspension wheels 302, the two first suspension wheels 302 of each set are respectively arranged at two sides of the guide rail 400 where the monorail crane is located, the braking assembly comprises a braking cylinder 305 arranged on the driving bracket 301, braking pads 308 arranged at two sides of the guide rail 400 where the monorail crane is located, and a braking spring 306 arranged on the braking cylinder 305 for pushing the braking pads 308 to brake, the hydraulic motor 303 and the brake cylinder 305 are respectively connected with a hydraulic system, and the brake pad 308 is hinged with the brake cylinder 305 through a connecting plate 307.

The surface of the driving wheel 304 is made of rubber materials such as polyurethane, and can generate large friction force with the guide rail 400 under the action of the clamping oil cylinder, the hydraulic motor 303 drives the driving wheel 304 to rotate, so that the monorail crane can run along the guide rail 400, and the hydraulic motor 400 can rotate forwards or backwards, so that the monorail crane can run forwards or backwards. The brake assembly in the drive unit 300 is in the form of a dead brake, i.e. when the supply of pressurized oil in the left chamber of the brake cylinder 305 is cut off, the brake spring 306 will push the brake pad 308 against the guide rail 400 to complete the braking process.

The lower portion of the drive bracket 301 is provided with a first suspension assembly for suspending the monorail car power house 100.

As shown in fig. 3-5, the speed-measuring and over-speed signaling device 200 includes an alarm and a U-shaped frame 270, two sets of second suspension wheels 210 for mounting the U-shaped frame 270 on a guide rail 400 where the monorail crane is located, a speed-measuring component 220 for measuring the operation speed of the monorail crane, and an over-speed signaling component 230 for measuring the over-speed of the monorail crane and triggering the braking of a braking component of the driving device 300 are respectively disposed on two opposite sides of the U-shaped frame 270, the second suspension wheels 210 are rotatably connected to the U-shaped frame 270, the speed-measuring component 220 and the over-speed signaling component 230 are disposed opposite to each other, and the two sets of second suspension wheels 210 are respectively disposed on two sides of the speed-measuring component 220 and the over-speed signaling component.

The speed measurement assembly 220 comprises a first friction wheel 221, a first speed measurement wheel 222 and a rotating speed measurement sensor 260, wherein the first friction wheel 221 is arranged inside the U-shaped rack 270, is used for being in close contact with a guide rail 400 where the monorail crane vehicle is located and advancing along with the rotation of the monorail crane vehicle, is arranged outside the U-shaped rack 270 and rotates along with the rotation of the first friction wheel 221, and the rotating speed measurement sensor 260 is arranged beside the first speed measurement wheel 222 and is used for detecting the rotating speed of the first speed measurement wheel 222. First friction wheel 221 and first tachometer wheel 222 are connected through first central axis, and U-shaped frame 270 is last to be provided with first through-hole corresponding first tachometer wheel 222 and first friction wheel 221, and first central axis passes first through-hole, and the aperture of first through-hole is greater than the diameter of first center pin, and first center pin can rock in first through-hole, is provided with first bearing on the first center pin, and first bearing sets up in the outside of U-shaped frame 270. The U-shaped frame 270 is provided with a first fixing plate 271, a first tensioning plate 272 fixedly connected with the first fixing plate 271 and a first spring 250 for enabling the first friction wheel 221 to be in close contact with the guide rail 400 where the monorail crane is located, one end of the first fixing plate 271 is connected to the U-shaped frame 270 at a first through hole through a first bolt 278, the first fixing plate 271 can rotate around the first bolt 278, a first bearing is fixedly connected to the first fixing plate 271 so as to enable the first central shaft to swing in the first through hole, one end of the first spring 250 is connected to the first tensioning plate 272, the other end of the first spring 250 is connected to the U-shaped frame 270 so as to enable the first spring 250 to tension the first tensioning plate 272, the first tensioning plate 272 gives a downward force to the first fixing plate 271 so that the first bearing has a downward force, and the downward force is transmitted to the first central shaft and the first friction wheel 221, so that the first friction wheel 221 is in close contact with the guide rail 400 where the monorail crane is located all the time, even if the guide rail 400 is uneven, the position of the first rotating shaft in the first through hole changes, but under the action of the elastic force of the first spring 250, the first friction wheel 221 is always ensured to be always in close contact with the guide rail 400 where the monorail crane is located.

Further, the first tightening plate 272 and the first fixing plate 271 may be fixedly connected by bolts and nuts, or may be integrally formed, the first tightening plate 272 and the first fixing plate 271 are combined to form an inverted L-shaped structure, and the first spring 250 and the first bolt 278 are respectively disposed at two ends of the inverted L-shaped structure formed by combining the first tightening plate 272 and the first fixing plate 271.

The first speed measuring wheel 222 is of a gear-shaped structure, the rotating speed measuring sensor 260 is a high-speed counting sensor, the high-speed counting sensor is arranged on the first tensioning plate 272, the high-speed counting sensor detects the number of protrusions passing through the high-speed counting sensor in the running process of the first speed measuring wheel 222, the high-speed counting sensor is in communication connection with a control system of the monorail crane, the control system of the monorail crane receives data acquired by the high-speed counting sensor and converts the data into the linear speed of the first speed measuring wheel 222 through calculation, the linear speed of the first speed measuring wheel 222 is the running speed of the monorail crane, the alarm is in control connection with the control system of the monorail crane, and the brake assembly of the driving device 300 is in communication connection with the control system of the monorail crane. The control system of the monorail crane controls the alarm to give out audible and visual alarm when the running speed of the monorail crane approaches the set running maximum value, and controls the brake assembly of the driving device 300 to brake to reduce the running speed of the monorail crane when the running speed of the monorail crane reaches or exceeds the set running maximum value, so that the running speed of the monorail crane is ensured to be within the set range.

The overspeed signaling assembly 230 comprises a second friction wheel 234 which is arranged inside the U-shaped rack 270 and used for being in close contact with the guide rail 400 where the monorail crane is located and advancing along with the rotation of the monorail crane, and a second speed measurement wheel 233 which is arranged outside the U-shaped rack 270 and rotates along with the rotation of the second friction wheel 234, wherein the second friction wheel 234 and the second speed measurement wheel 233 are connected through a second central shaft, a second through hole is formed in the U-shaped rack 270 and corresponds to the second speed measurement wheel 233 and the second friction wheel 234, the second central shaft passes through the second through hole, the aperture of the second through hole is larger than the diameter of a second central shaft, the second central shaft can swing in the second through hole, a second bearing is arranged on the second central shaft, the second bearing is arranged outside the U-shaped rack 270, a second fixing plate 273 is arranged on the U-shaped rack 270, a second tensioning plate 274 fixedly connected with the second fixing plate 273, and a second spring guide rail 280 used for enabling the second friction wheel 234 to be in close contact with the guide rail 400 where the monorail crane, one end of the second fixing plate 273 is connected to the U-shaped frame 270 at the second through hole by a second bolt 277, the second fixing plate 273 is rotatable about the second bolt 277, a second tension plate 274 is provided at the other end of the second fixing plate 273, a second bearing is fixedly connected to the second fixing plate 273, one end of a second spring 280 is connected to the second tension plate 274, and the other end is connected to the U-shaped frame 270. The principle that the second friction wheel 234 is in close contact with the guide rail 400 where the monorail crane is located is the same as the principle that the first friction wheel 221 is always in close contact with the guide rail 400 where the monorail crane is located, and the detailed description is omitted here.

An overspeed brake valve 240 for activating the brake assembly of the driving device 300 is arranged beside the second tachometer wheel 233, the overspeed brake valve 240 is connected to the second tension plate 274, a trigger assembly for opening the overspeed brake valve 240 when the monorail crane is overspeed is arranged on the second tachometer wheel 233, the trigger assembly comprises an elastic member 232 and a touch member 231, the elastic member 232 is preferably a spring, the touch member 231 is preferably a pin, a groove is arranged on the second tachometer wheel 233, the trigger assembly is arranged in the groove, one end of the elastic member 232 is fixedly connected to the bottom of the groove, the other end of the elastic member 232 is fixedly connected with the touch member 231, when the running speed of the monorail crane is within the set value range, the touch piece 231 is always positioned in the groove under the action of the elastic force of the elastic piece 232, when the running speed of the monorail crane exceeds the set value, under the centrifugal force of the rotation of the second flywheel 233, the free end of the touch member 231 protrudes out of the groove against the elastic force of the elastic member 232. A pressure block 235 is arranged between the overspeed brake valve 240 and the second tachometer wheel 233, the pressure block 235 is of an L-shaped structure, the middle part, namely the corner, of the pressure block 235 is rotatably connected to the second tension plate 274, one end of the pressure block 235 is pressed on the overspeed brake valve 240 to enable the overspeed brake valve 240 to be in a closed state, the other end of the pressure block 235 is arranged opposite to the second tachometer wheel 233 and a gap for the second tachometer wheel 233 to rotate is reserved between the other end of the pressure block 235 and the second tachometer wheel 233, when the running speed of the monorail crane exceeds a set value, the free end of the touch piece 231 extends out of the groove and is pressed on the pressing block 235, so that the pressing block 235 rotates, and one end of the pressing block 235 is not pressed on the overspeed brake valve 240 any more, so that the overspeed brake valve 240 is opened, the power unit of the monorail crane is driven hydraulically and braked hydraulically, and the overspeed brake valve 240 is opened to cut off the oil supply of the hydraulic system, so that the monorail crane is braked.

Further, the lower part of the U-shaped frame 270 is provided with a second suspension assembly for suspending the power chamber 100 of the monorail crane, the second suspension assembly comprises a second suspension shaft 275 and a second suspension plate 276, one end of the second suspension shaft 275 is connected with the U-shaped frame 270, the other end of the second suspension shaft is connected with the second suspension plate 276, and the second suspension plate 276 is used for suspending the power chamber 100 of the monorail crane.

When the speed-measuring overspeed signaling device 200 is used, the speed-measuring component 220 preferentially functions to monitor the running speed of the monorail crane locomotive in real time, when the running speed of the monorail crane locomotive is close to the set running maximum value, the control system controls the alarm to give out an audible and visual alarm to prompt the personnel on site, and when the running speed of the monorail crane locomotive reaches or exceeds the set running maximum value, the control system controls the brake component of the driving device 300 to brake so as to reduce the running speed of the monorail crane locomotive and ensure that the running speed of the monorail crane locomotive is within the set range; the maximum value of the running speed of the monorail crane set by the overspeed signaling component 230 is greater than the maximum value of the running speed of the monorail crane set by the speed measuring component, so that when the speed measuring component 220 is normally used, the overspeed signaling component 230 does not work, once the speed measuring component 220 fails, the running speed of the monorail crane reaches the maximum value of the running speed of the monorail crane set by the overspeed signaling component 230, the overspeed signaling component 230 activates the braking component of the driving device 300 to brake, the speed measuring component 220 and the overspeed signaling component 230 are matched to realize double monitoring of the running speed of the monorail crane, double guarantee is provided for the running of the monorail crane, the running speed of the monorail crane is ensured to be within the set range, and the running safety of the monorail crane is improved.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The monorail crane vehicle is characterized by comprising a speed-measuring and overspeed signaling device, a plurality of driving devices and a power room, wherein the speed-measuring and overspeed signaling device is used for detecting and controlling the running speed of the monorail crane vehicle, the driving devices are used for driving the monorail crane vehicle to run, the power room is used for providing power for the driving devices, the power room is hung on a guide rail where the monorail crane vehicle is located through the speed-measuring and overspeed signaling device and one of the driving devices, a hydraulic system is arranged in the power room, the driving devices are connected with the hydraulic system, and the hydraulic system comprises a hydraulic pump set and a motor for driving the hydraulic pump set to run.

2. The monorail crane vehicle of claim 1, further comprising a control system, wherein the control system is disposed in the power chamber, the power chamber is of a box structure, illumination warning lamps for illumination or warning are respectively disposed on the front side and the rear side of the power chamber along the running direction of the monorail crane vehicle, and the illumination warning lamps and the hydraulic system are respectively in communication connection with the control system.

3. The monorail crane vehicle of claim 2, wherein the two adjacent driving devices, the speed and overspeed signaling device and the driving device adjacent to the speed and overspeed signaling device are hinged through a pull rod, the driving device comprises a driving bracket, two sets of first suspension wheels arranged on the driving bracket for mounting the driving device on a guide rail where the monorail crane vehicle is located, a driving wheel arranged between the two sets of first suspension wheels, a hydraulic motor connected with the driving wheel for driving the driving wheel to rotate, a braking assembly arranged on the driving bracket and a first suspension assembly arranged at the lower part of the driving bracket for suspending a power chamber, each set of first suspension wheels comprises two first suspension wheels, the two first suspension wheels of each set are respectively arranged at two sides of the guide rail where the monorail crane vehicle is located, and the braking assembly comprises a braking oil cylinder arranged on the driving bracket, and a first suspension assembly arranged at the lower part of the driving bracket for suspending, The brake pads are arranged on two sides of the guide rail where the monorail crane car is located, the brake springs are arranged on the brake oil cylinders and used for pushing the brake pads to brake, and the hydraulic motor and the brake oil cylinders are respectively connected with the hydraulic system.

4. The monorail crane vehicle of claim 3, wherein the speed and speed measuring and over-speed signaling device comprises a U-shaped frame, two opposite sides of the U-shaped frame are respectively provided with a speed measuring component for detecting the running speed of the monorail crane and an overspeed signaling component for detecting the overspeed of the monorail crane and triggering the brake component of the driving device to brake, the overspeed signaling component comprises a second friction wheel which is arranged inside the U-shaped frame and is used for being in close contact with a guide rail where the monorail crane car is located and advancing along with the rotation of the monorail crane car, and a second speed measuring wheel which is arranged outside the U-shaped frame and rotates along with the rotation of the second friction wheel, an overspeed brake valve for activating the brake assembly of the driving device to brake is arranged beside the second tachometer wheel, and the second tachometer wheel is provided with a trigger assembly for opening the overspeed brake valve when the monorail crane car is overspeed.

5. A monorail hoist vehicle as claimed in claim 4, wherein the second tachometer wheel is provided with a recess, the trigger component is arranged in the groove and comprises an elastic piece and a touch piece, one end of the elastic piece is fixedly connected with the bottom of the groove, the other end of the elastic piece is fixedly connected with the touch piece, a pressing block is arranged between the overspeed brake valve and the second tachometer wheel, the middle of the pressing block is rotatably connected on the U-shaped frame, one end of the pressure block is pressed on the overspeed brake valve to enable the overspeed brake valve to be in a closed state, the other end of the pressing block is opposite to the second speed measuring wheel, a gap for the second speed measuring wheel to rotate is reserved between the other end of the pressing block and the second speed measuring wheel, the trigger assembly and the pressing block are matched to enable the trigger assembly to touch the pressing block to deflect when the monorail crane locomotive exceeds the speed limit, so that the overspeed brake valve is opened.

6. The monorail crane vehicle of claim 5, further comprising a second fixing plate, a second tensioning plate fixedly connected to the second fixing plate, and a second spring for making the second friction wheel tightly contact with the guide rail on which the monorail crane vehicle is located, wherein the second friction wheel and the second speed measuring wheel are connected through a second central shaft, the U-shaped frame is provided with a second through hole corresponding to the second speed measuring wheel and the second friction wheel, the second central shaft passes through the second through hole, the diameter of the second through hole is larger than that of the second central shaft, the second central shaft is provided with a second bearing, the second bearing is arranged outside the U-shaped frame, one end of the second fixing plate is rotatably connected to the U-shaped frame at the second through hole, the second bearing is fixedly connected to the second fixing plate, and one end of the second spring is connected to the second tensioning plate, the other end is connected to the U-shaped frame.

7. The monorail crane vehicle of any one of claims 4-6, wherein the speed measurement assembly comprises a first friction wheel disposed inside the U-shaped frame for making close contact with a guide rail on which the monorail crane vehicle is located and advancing with rotation of the monorail crane vehicle, a first speed measurement wheel disposed outside the U-shaped frame and rotating with rotation of the first friction wheel, and a rotation speed measurement sensor disposed beside the first speed measurement wheel for detecting rotation speed of the first speed measurement wheel.

8. The monorail crane vehicle of claim 7, further comprising an alarm, wherein the first speed wheel is of a gear-shaped structure, the rotation speed measuring sensor is a high-speed counting sensor, the high-speed counting sensor detects the number of protrusions passing through the high-speed counting sensor during operation of the first speed wheel, the high-speed counting sensor is in communication connection with the control system, the control system receives data obtained by the high-speed counting sensor and converts the data into linear speed of the first speed wheel through calculation, and the alarm is in control connection with the control system.

9. The monorail crane vehicle of claim 8, further comprising a first fixing plate, a first tensioning plate fixedly connected to the first fixing plate, and a first spring for making the first friction wheel tightly contact with a guide rail on which the monorail crane vehicle is located, wherein the first friction wheel and the first speed measuring wheel are connected through a first central shaft, the U-shaped frame is provided with a first through hole corresponding to the first speed measuring wheel and the first friction wheel, the first central shaft passes through the first through hole, the diameter of the first through hole is larger than that of the first central shaft, the first central shaft is provided with a first bearing, the first bearing is arranged outside the U-shaped frame, one end of the first fixing plate is rotatably connected to the U-shaped frame at the first through hole, the first bearing is fixedly connected to the first fixing plate, and one end of the first spring is connected to the first tensioning plate, the other end is connected to the U-shaped frame.

10. The monorail crane vehicle of claim 9, wherein two sets of second suspension wheels are disposed on opposite sides of the U-shaped frame for mounting the U-shaped frame on a guide rail on which the monorail crane vehicle is disposed, the second suspension wheels are rotatably connected to the U-shaped frame, the speed measurement assembly and the overspeed signaling assembly are disposed opposite to each other, and the two sets of second suspension wheels are disposed on opposite sides of the speed measurement assembly and the overspeed signaling assembly, respectively.