CN214383869U

CN214383869U - Take operation car of multi-functional operation device

Info

Publication number: CN214383869U
Application number: CN202023312475.4U
Authority: CN
Inventors: 张伟; 王江; 赵建利; 李康; 杨勇; 鞠晓李; 高秀峰; 刘海威
Original assignee: Gemac Engineering Machinery Co Ltd
Current assignee: Gemac Engineering Machinery Co Ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-10-12
Anticipated expiration: 2030-12-31

Abstract

The utility model provides a take operation car of multi-functional operation device, includes frame, bicycle shed, bogie, coupler and buffering device, braking system, power transmission system, hydraulic system, multi-functional arm, terminal operation device, hydraulic leg. The multifunctional operation device is arranged at the tail part of the rear end of the frame; bogies are arranged at two ends of the lower part of the vehicle, a braking system, a power transmission device and a hydraulic system are arranged at the lower part of the vehicle, and hydraulic support legs are arranged at the tail part of the vehicle. The utility model provides a terminal operation device of different functions can be connected to multi-functional mechanical arm device, solves the railway scene and accomplishes the sleeper and change, takes off tiny fragments of stone, coal, etc. operation intensity of labour problem that the efficiency is low greatly, and operation mechanism easy operation, action are nimble, the construction is high-efficient and possess powerful expansion application space, can shorten the engineering time by a wide margin and use manpower sparingly cost to adapt to high efficiency, high-quality circuit maintenance requirement.

Description

Take operation car of multi-functional operation device

Technical Field

The utility model relates to a take operation car of multi-functional operation device.

Background

The large-scale road maintenance machine is large-scale equipment applied to railway line inspection, maintenance and repair, has single function, and is designed with different types of large-scale road maintenance machines aiming at different railway line diseases, such as: full-face ballast cleaning and screening machine, tamping car, rail grinding train, overhaul train and the like. The large-scale road maintenance machine creates conditions for improving the line quality, guaranteeing the transportation safety and expanding the energy. On the other hand, large-scale maintenance machines are not suitable for small-scale operations due to operational grouping limitations. On the other hand, the personnel have more trips, the arrangement trips are more, and the safety risk is higher.

At present, aiming at construction operation with high intensity in a small range, such as local sleeper replacement, limited tree branch cutting in railway lines and the like, most of construction operation is not adapted to vehicle equipment, and the construction operation can only be completed through manual operation, so that the labor intensity is high, the cost is high, the efficiency is low, and certain potential safety hazards exist.

Disclosure of Invention

An object of the utility model is to overcome the above-mentioned not enough of prior art, and provide a take multi-functional operation device's operation car, according to the different terminal operation device of operation demand quick replacement to adapt to high efficiency, high-quality circuit maintenance requirement.

The technical scheme of the utility model is that: the device comprises a frame, wherein a shed is installed at the front end of the upper part of the frame, a terminal operation device loading position is installed in the middle position above the frame, the terminal operation device is arranged in the terminal operation device loading position, the terminal operation device is a sleeper replacing device, a stone ballast chain removing device, an excavating bucket device or a branch pruning device, and the terminal operation device is provided with a mechanical connection interface; a multifunctional mechanical arm is arranged at the tail part of the rear end of the upper part of the frame; the two ends of the lower part of the frame are provided with bogies, the lower part of the frame is provided with a power transmission system and a hydraulic system, and the tail part of the frame is provided with a hydraulic support leg; the operation end of the multifunctional mechanical arm is provided with the quick-change connector through the rotary seat, a terminal operation device can be selected to operate according to needs during use, and the terminal operation device is connected with the quick-change connector through the mechanical connection interface.

The multifunctional mechanical arm comprises a rotary base, a driving cab, a main arm, an auxiliary arm and a quick-change connector; a driving platform and a main arm are arranged on the upper part of the rotary base, a rotary area selection function is arranged in the driving platform, and the function of the operation area limiting device is rotary area selection; the main arm is connected with the rotary base through a first oil cylinder and a first hinge shaft, so that the main arm rotates relative to the rotary base and has an amplitude variation function; the main arm is of a telescopic structure, a telescopic arm is arranged in the main arm and has a telescopic function, the connecting end of the auxiliary arm is connected with the telescopic arm through a second oil cylinder and a second hinge shaft, and the auxiliary arm rotates relative to the telescopic arm and has an amplitude variation function; the quick-change connector is arranged at the auxiliary arm operation end through the rotary seat. The quick-change connector can rotate relative to the auxiliary arm and has a full-rotation function. The multifunctional mechanical arm is small in size through matching the lengths of the main arm and the auxiliary arm and amplitude, the multifunctional mechanical arm after loading does not have the risk of touching a railway contact net, the action amplitude adjustable range is large, and the multifunctional mechanical arm can be operated conveniently to avoid touching the railway contact net. The multifunctional mechanical arm can control the operation vehicle to run at a low speed through the driving platform. The multifunctional mechanical arm is provided with a mechanical locking device and can be locked.

The lower part of the rotary base is arranged on the frame through a flange and is driven by a hydraulic system to operate. The rotary base is provided with an operation area limiting device for limiting the rotary area of the rotary base.

The branch pruning device comprises an auxiliary rod and a hydraulic chain saw, wherein the auxiliary rod is a telescopic rod, and the tail end of the auxiliary rod is provided with the detachable hydraulic chain saw. The sleeper replacement device comprises a connecting frame, a swinging framework, a clamping device and a stone ballast shovel; the stone ballast chain-pulling device comprises a connecting frame and a chain.

The excavator bucket device comprises a connecting frame, a deflection oil cylinder, a rear bucket and a front bucket driven by the deflection oil cylinder, wherein the rear bucket is arranged at the rear part of the connecting frame, the front bucket is arranged at the front part of the connecting frame, a bucket opening of the rear bucket is opposite to a bucket opening of the front bucket, and a filter screen is arranged at the bucket opening of the rear bucket, so that the screening operation of stone ballast and dirty soil can be completed.

The two ends of the frame are provided with hook and buffer devices; rotatable wallboards are arranged on two sides of the frame corresponding to the loading position of the terminal operation device, so that the terminal operation device can be conveniently stored and released. Both bogies are equipped with a braking system. The braking system comprises an air braking system, a basic braking device, a sanding device and a hand braking device, wherein the basic braking device is arranged on the bogie, and an operation terminal of the hand braking device is arranged on the vehicle. The tail ends of the hydraulic support legs are provided with rollers, and the hydraulic support legs can be supported on the steel rails to ensure the stability of vehicle operation.

The power transmission system comprises an engine and a transmission case, wherein the flywheel end of the engine is connected with the transmission case, when only one of the two bogies is a bogie with power, the output end of the transmission case outputs the power and transmits the power to the axle gear case on the bogie with power through a transmission shaft, and when the two bogies are both bogies with power, the output end of the transmission case outputs the power and transmits the power to the two axle gear cases on the two bogies through the two transmission shafts respectively. The flywheel end of the engine is directly connected with the transmission case, and is connected with the axle gear case through the transmission shaft to drive the whole vehicle to run at high speed.

The power transmission system consists of an engine, a traction motor, a main generator and an AC-DC-AC power transmission system, wherein the traction motors are arranged on the two bogies, the engine is connected with the main generator, and the main generator is connected with the traction motors through the AC-DC-AC power transmission system. The main generator generates electricity and is connected with a traction motor arranged on the bogie through an AC-DC-AC power transmission system.

The operation vehicle with the multifunctional operation device comprises a frame, wherein a shed is installed at the front end of the upper part of the frame, a terminal operation device loading position is arranged in the middle position above the frame, various terminal operation devices are arranged in the terminal operation device loading position, and each terminal operation device is provided with a mechanical connection interface; a multifunctional mechanical arm is arranged at the tail part of the rear end of the upper part of the frame; the bogie is arranged at two ends of the lower part of the frame, the power transmission system and the hydraulic system are arranged at the lower part of the frame, the quick-change connector is arranged at the operation end of the multifunctional mechanical arm through the rotary seat, and a terminal operation device selected according to operation contents is connected with the quick-change connector at the operation end of the multifunctional mechanical arm through the mechanical connection interface; the multifunctional mechanical arm is used for locking the multifunctional mechanical arm to prevent the multifunctional mechanical arm from moving along with the running of the vehicle; the mechanical locking device comprises a locking seat and a locking pin, the locking seat is fixedly arranged, a positioning hole is formed in the locking seat, a locking hole is formed in the multifunctional mechanical arm, and the multifunctional mechanical arm is in a locking state when the positioning hole of the locking seat is overlapped with the locking hole of the multifunctional mechanical arm and the locking pin is inserted into the positioning hole and the locking hole.

The locking seat is fixed between the loading position and the rotary seat of the terminal operation device, so that the space is reasonably utilized, and the multifunctional mechanical arm is well locked and does not exceed the railway clearance when a vehicle runs.

The utility model discloses combine the characteristics and the operational environment of railway circuit, through the cooperation of multi-functional arm and terminal operation device, realize various operations. The utility model has the advantages compared with the prior art:

1. the rear end of the upper part of the frame is provided with a hydraulic operation mechanism, the hydraulic operation mechanism comprises a hydraulic operation arm device (namely a multifunctional mechanical arm) and a plurality of hydraulic operation modules (namely a terminal operation device), the plurality of hydraulic operation modules comprise a sleeper replacing device, a 9-ruler stone ballast chain scraping device, an excavating bucket device, a branch pruning device and other module mechanisms, the front end of the hydraulic operation arm device is provided with a hydraulic control interface device connected with different hydraulic operation modules, the fast replacement of a railway sleeper, the cleaning of railway local ballast beds or the preparation task of slotting before the construction of large-scale road maintenance machinery is completed, the stone ballast of the lines is carried, the pruning of the trees with the lines broken and the like are performed, the operation mechanism is simple to operate, flexible to move, efficient to construct and has strong expanded application space, the construction time can be greatly shortened, the labor cost can be saved, and the hydraulic operation mechanism is suitable for high efficiency, High-quality line maintenance requirements.

2. The rear platform of the frame is distinguished according to functions, and a tool storage area and an operation mechanism storage area are arranged, so that the vehicle design is more practical and modular; the middle part is provided with a loading position of the terminal operation device, and the two sides are provided with rotatable wallboards, so that the terminal operation device is convenient to retract and release.

3. The bogie can be provided with a power bogie at one end and a non-power bogie at the other end, and can also be provided with power bogies at both ends, the driving mode is flexibly selected according to the mechanical transmission mode or the electric transmission mode, the speed requirement that the highest running speed is 120km/h is met, and the dynamic performance requirement and the traction performance requirement of vehicle running are also met.

4. The braking system is arranged on the bogies, and the two bogies are both provided with the braking system. The braking performance is stable, and the reliability is high. The requirements of braking distance under 80km/h and 120km/h are met, and the vehicle has good braking performance.

5. The low-speed running function can realize constant low-speed operation of 3-10km/h and improve the operation efficiency on the one hand, and on the other hand, the front end of the mechanical arm is provided with a driving platform operation end which can manually control the operation vehicle to run at low speed in real time, thereby meeting various complex working condition requirements during field construction operation, improving the operation efficiency of a construction field, reducing the labor intensity and improving the stability and the safety of the operation.

The existing loading mechanical arm of the line rail vehicle is generally a crane arm, so that the structure is simple, the function is single, and only a simple hoisting task can be met. On the other hand, the loaded mechanical arm is designed in a way of larger size because the characteristics of the railway line and the working environment, namely, the strict size limit of each device on the vehicle are not considered. The existing equipment of the line is damaged due to exceeding the limit in the operation process, so that the maintenance quality and efficiency are greatly reduced. The utility model discloses in, combine the characteristics and the operational environment of railway circuit, rationally set up multi-functional arm overall dimension, through the length and the range of becoming width of cloth that match main arm, auxiliary arm, multi-functional arm after the loading is because of the size is less, and range of action adjustable is big, operation that can be comparatively convenient can avoid exceeding the limit again when guaranteeing the operation scope.

The utility model provides a terminal operation device of different functions can be connected to multi-functional arm, solves the railway scene and accomplishes the sleeper and change, takes off tiny fragments of stone, earth's stone operation, road bed fluting, invades the problem that work intensity of labour is big inefficiency such as limit branch cutting, and operation mechanism easy operation, action are nimble, the construction is high-efficient and possess powerful expansion application space, can shorten the engineering time by a wide margin and use manpower sparingly cost to adapt to high efficiency, high-quality circuit maintenance requirement.

Drawings

FIG. 1 is a front view of the structure of the present invention;

fig. 2 is a top view of the structure of the present invention;

fig. 3 is a bottom view of the structure of the present invention;

fig. 4 is a schematic structural view of the middle sleeper replacement device of the present invention;

FIG. 5 is a top view of FIG. 4;

fig. 6 is a schematic structural view of a medium-size 9-foot ballast scraper chain of the present invention;

FIG. 7 is a top view of FIG. 6;

fig. 8 is a schematic structural view of a middle bucket device of the present invention;

FIG. 9 is a top view of FIG. 8;

FIG. 10 is a schematic structural view of the tree pruning device of the present invention;

fig. 11 is a top view of fig. 10.

Detailed Description

Embodiments of the present invention are described below with reference to fig. 1-7.

As shown in fig. 1 and 2, the utility model comprises a frame 2, a shed 1 is arranged at the front end of the upper part of the frame 2, a loading position 10 of a terminal operation device is arranged at the middle part, and a multifunctional mechanical arm 16 is arranged at the tail part of the rear end; the two ends of the frame 2 are provided with hook and buffer devices 13; the bogie 3 is arranged at two ends of the lower part of the vehicle, the braking system, the power transmission device 39 and the hydraulic system 38 are arranged at the lower part of the vehicle, and the hydraulic support leg 7 is arranged at the tail part of the vehicle. The tail end of the hydraulic support leg 7 is provided with a roller 8 which can be supported on a steel rail to ensure the stability and the safety of the vehicle operation.

The multi-function robot arm 16 is mounted to the frame 2 via a quadrilateral flange 17 and is driven by a hydraulic system 38. The upper portion of the quadrangular flange 17 is provided with a rotary base 18, the rotary base 18 is provided with an operation area limiting device which can realize rotary area selection and limiting functions, the upper portion of the rotary base 18 is provided with a driving platform 19 and a main arm 12, the driving platform 19 is provided with a low-speed shape walking control switch which can control an operation vehicle to run at a low speed, the main arm 12 is connected with the rotary base 18 through a hydraulic oil cylinder and a hinge shaft and can rotate relative to the hinge shaft to have amplitude changing functions, the auxiliary arm 11 is provided with a telescopic arm 40 which is connected with the main arm 12 through the oil cylinder and the hinge shaft, the auxiliary arm 11 can rotate relative to the hinge shaft relative to the main arm 12 and can also stretch through the telescopic oil cylinder to have amplitude changing and stretching functions, the tail end of the auxiliary arm 11 is provided with a quick-change connector 9 through a rotary seat 41 to realize the full rotary function of the quick-change connector 9 relative to the auxiliary arm 11, and the driving platforms 19 are arranged on two sides or one side of the main arm 12 on the rotary base 18. The multifunctional mechanical arm 16 has a large degree of freedom and is flexible to use by matching the lengths and amplitude of the main arm 12 and the auxiliary arm 11, so that contact with railway equipment is avoided, and operation in a complex environment can be realized. The multifunctional mechanical arm 16 is provided with a mechanical locking device, so that the mechanical arm can be firmly locked on the ground, and the safety in operation is ensured. The middle part is provided with a terminal operation device loading position 10, and the two sides are provided with rotatable wall plates 42, so that the terminal operation device 15 can be conveniently stored and released.

As shown in fig. 3, the lower power transmission system 39 of the frame 2 comprises an engine 23 and a transmission case 22, the flywheel end of the engine 23 is connected with the transmission case 22, and the power output is transmitted to the bogie 3 with power through a transmission shaft. The flywheel end of the engine is directly connected with a transmission case 22 and is connected with an axle gear case 20 through a transmission shaft 21 to drive the whole vehicle to run at a high speed. The engine 23 adopts an WP12.480 type electric injection water-cooling diesel engine produced by Weichai diesel power, the rated power is 353k W, and the emission reaches the national III standard. The T211 type horizontal hydraulic transmission case is adopted, a vehicle is provided with a low-speed running device, the low-speed running device can be realized through a hydraulic system 38 or an engine, the T211 type horizontal hydraulic transmission case has a low-speed running function, a running switch sends out a speed instruction of 3-10km/h under a low-speed working condition, and the transmission case is automatically matched with the power output of an engine 23 through real-time speed feedback to realize constant low-speed operation. The engine 23 with its DC24V charges the generator and starter motor 25. The drivetrain 39 may also consist of an engine, a main generator, an ac-dc-ac transmission system, and a traction motor.

One end of the bogie 3 can be provided with a power bogie, and the other end of the bogie can be provided with a non-power bogie, and the two ends of the bogie can be provided with power bogies. If the two bogies 3 are powered bogies, the two bogies 3 are both provided with braking systems. The brake system comprises an air brake system 4, a basic brake device 5, a sanding device 6 and a hand brake device 14, wherein the basic brake device 5 is arranged on the bogie 3, and the operation terminal of the hand brake device 14 is arranged on the vehicle. The braking system adopts a JZ-7 type brake, and an air pipeline is provided with an oil-water separator and an air dryer, so that the working reliability of each valve is ensured. The braking system meets the requirements that the emergency braking distance of the bicycle on the straight road is less than 400 meters at the initial speed of 80 kilometers per hour and the emergency braking distance of the bicycle on the straight road is less than 800 meters at the initial speed of 120 kilometers per hour.

The terminal operation device comprises a plurality of hydraulic operation modules: the track sleeper replacing device (figure 4), the 9-foot stone ballast chain raking device (figure 5), the excavator bucket device (figure 6) and the branch pruning device (figure 7), and the terminal operation device 15 is provided with the same mechanical connecting interface for connecting the quick-change connector 9. As shown in fig. 4, the sleeper replacement device includes a connecting frame 29, a swing frame 30, a clamping device 31, and a ballast shovel 28; as shown in fig. 5, the 9-foot ballast chain-raking device comprises a connecting frame 26 and a raking chain 27, and is used for cleaning railway local ballast beds or performing a grooving preparation task before completing the construction of a large maintenance machine and the like by adopting side cutting excavation; as shown in fig. 6, the bucket device includes a link frame 32, a deflecting cylinder 33, a rear bucket 35 having a function of separating dirt, and a front bucket 34 driven by the deflecting cylinder 33; as shown in fig. 7, the pruning device comprises an auxiliary bar 37 and a hydraulic chain saw 36; the hydraulic pipelines of different hydraulic operation modules are connected with a hydraulic control interface device at the front end of the multifunctional mechanical arm 16 through quick plug buckle type connectors, the control circuits of different hydraulic operation modules are connected with a main control circuit in a hydraulic mechanism control box through thread locking type plug connectors, the control circuits of different hydraulic operation modules adopt different contact pins at the plug type connectors, and the purposes of unified interfaces and control differential processing are achieved.

The hydraulic operation mechanism adopts three hydraulic oil cylinders to realize lifting, contraction and rotation. The operations in the figures are taken as examples for explanation: when the sleeper is replaced, after front and rear stone ballasts of the sleeper are loosened through the stone ballast shovels 28, the rail to be replaced is pushed to move back and forth, and the front and rear stone ballasts of the sleeper are enabled to overflow; placing the sleeper to be replaced close to the sleeper in front of (or behind) the sleeper to be replaced; the stone ballast at the bottom of the original sleeper is pulled backwards (or forwards) by a stone ballast shovel 28; the sleeper to be replaced is pushed back to the original position, the sleeper is transversely drawn out through the clamping device 31 and matched with the multifunctional mechanical arm 16, and the sleeper is collected to the cargo carrying platform and replaced by a new sleeper through the clamping device 31; and recovering the stone ballast and the fastener. When 9-inch stone ballast chain-scraping operation is carried out, the multifunctional mechanical arm 16 drives the connecting frame 26 to extend out, and the connected chain-scraping 27 acts to clean railway local track bed ballast. When the excavator is used for excavating, the deflection oil cylinder 33 on the connecting frame 32 extends or shortens to realize the opening and closing of the front bucket 34 driven by the deflection oil cylinder 33 and the rear bucket 35 with the function of separating dirt, thereby realizing the grabbing and putting down operation of the earthwork; when the tree pruning operation is carried out, the auxiliary rod 37 connected with the multifunctional mechanical arm 16 extends out, and the detachable hydraulic chain saw 36 is installed at the tail end of the auxiliary rod 37, so that the over-limit cutting and trimming of the tree trunk and the tree branches are realized.

The hydraulic system 38 further comprises an engine heat dissipation hydrostatic circuit, a multifunctional mechanical arm 16 working circuit, a hydraulic support leg 7 working circuit and a terminal operation device 15 working circuit, and the hydraulic system 38 can be provided with a low-speed walking circuit. The low-speed hydraulic walking system loop mainly comprises a walking motor, a speed reducer, a walking oil pump, a control valve and a pipeline. Hydraulic system 38 may not include a low-speed travel circuit. Further, the low-speed automatic running can be realized through a hydraulic system, and can also be realized through debugging of an engine. The low-speed operation walking loop drives a walking oil pump through the output power of the front end of the engine 23, and hydraulic energy drives a walking motor arranged on the axle gear box 20 through a control valve and a pipeline to drive operation walking. The tail ends of the hydraulic support legs 7 are provided with rollers 8 which can be supported on the steel rails to ensure the operation stability of the vehicle.

The utility model provides a hydraulic pressure operation arm device can connect the hydraulic pressure operation module of different functions, solve the railway scene and accomplish the sleeper and change, take off tiny fragments of stone, the road bed fluting, invade the problem that work intensity of labour such as limit branch cutting is big inefficiency, a railway vehicle takes multi-functional operation device is provided, can be equipped with different operation terminals by the vehicle from taking the quick change interface and accomplish the sleeper and change, take off tiny fragments of stone, the road bed fluting, invade operation tasks such as limit branch cutting, and operation mechanism easy operation, the action is nimble, the construction is high-efficient and possess powerful expansion application space, can shorten the engineering time by a wide margin and save the human cost, thereby adapt to high efficiency, high-quality circuit maintenance requirement.

Claims

1. The utility model provides a take operation car of multi-functional operation device which characterized in that: the device comprises a frame (2), wherein a shed (1) is installed at the front end of the upper part of the frame (2), a terminal operation device loading position (10) is installed at the middle position above the frame (2), a terminal operation device (15) is arranged at the terminal operation device loading position (10), the terminal operation device (15) is a sleeper replacement device, a stone ballast chain scraper, a bucket device or a branch pruning device, and the terminal operation device (15) is provided with a mechanical connection interface; a multifunctional mechanical arm (16) is arranged at the rear end of the upper part of the frame (2); bogie (3) are installed at the two ends of the lower portion of frame (2), power transmission system (39) and hydraulic system (38) are installed on the lower portion of frame (2), hydraulic support legs (7) are installed on the tail portion of frame (2), quick-change connector (9) is installed at the operation end of multifunctional mechanical arm (16) through rotary seat (41), and terminal operation device (15) is connected with quick-change connector (9) through mechanical connection interface.

2. The work vehicle with a multifunctional work apparatus according to claim 1, characterized in that: the multifunctional mechanical arm (16) comprises a rotary base (18), a driving platform (19), a main arm (12), an auxiliary arm (11) and a quick-change connector (9); a driving platform (19) and a main arm (12) are arranged at the upper part of the rotary base (18); the main arm (12) is connected with the rotary base (18) through a first oil cylinder and a first hinge shaft; the main arm (12) is of a telescopic structure, a telescopic arm (40) is arranged in the main arm, and the connecting end of the auxiliary arm (11) is connected with the telescopic arm (40) through a second oil cylinder and a second hinge shaft; the quick-change connector (9) is arranged at the working end of the auxiliary arm (11) through a rotary seat (41).

3. The work vehicle with a multifunctional work apparatus according to claim 2, characterized in that: the lower part of the rotary base (18) is arranged on the frame (2) through a flange (17).

4. The work vehicle with a multifunctional work apparatus according to claim 1, characterized in that: the tree pruning device comprises an auxiliary rod (37) and a hydraulic chain saw (36), wherein the auxiliary rod (37) is a telescopic rod, and the tail end of the auxiliary rod (37) is provided with the detachable hydraulic chain saw (36).

5. The work vehicle with a multifunctional work apparatus according to claim 1, characterized in that: the excavator bucket device comprises a connecting frame (32), a deflection oil cylinder (33), a rear bucket (35) and a front bucket (34) driven by the deflection oil cylinder (33), wherein the rear bucket (35) is arranged at the rear part of the connecting frame (32), the front bucket (34) is arranged at the front part of the connecting frame (32), a bucket opening of the rear bucket (35) is opposite to a bucket opening of the front bucket (34), and a filter screen is arranged at the bucket opening of the rear bucket (35).

6. The work vehicle with a multifunctional work apparatus according to claim 1, characterized in that: the two ends of the frame (2) are provided with hook and buffer devices (13); rotatable wall plates (42) are arranged on two sides of the frame (2) corresponding to the loading position (10) of the terminal operation device; the tail end of the hydraulic support leg (7) is provided with a roller (8); both bogies are equipped with a braking system.

7. The work vehicle with a multifunctional work apparatus according to claim 1, characterized in that: the power transmission system (39) comprises an engine (23) and a transmission case (22), the flywheel end of the engine (23) is connected with the transmission case (22), when only one of the two bogies is a bogie with power, the output end of the transmission case (22) outputs power and transmits the power to an axle gear case (20) on the bogie with power through a transmission shaft, and when the two bogies are bogies with power, the output end of the transmission case (22) outputs power and transmits the power to the two axle gear cases (20) on the two bogies (3) through the two transmission shafts respectively.

8. The work vehicle with a multifunctional work apparatus according to claim 1, characterized in that: the power transmission system (39) is composed of an engine (23), a traction motor (24), a main generator and an alternating current-direct current-alternating current transmission system, the traction motors (24) are installed on the two bogies (3), the engine (23) is connected with the main generator, and the main generator is connected with the traction motors (24) through the alternating current-direct current-alternating current transmission system.

9. The utility model provides a take operation car of multi-functional operation device which characterized in that: the automatic control system comprises a frame (2), wherein a shed (1) is installed at the front end of the upper part of the frame (2), a terminal operation device loading position (10) is installed at the middle position above the frame (2), various terminal operation devices (15) are arranged in the terminal operation device loading position (10), and each terminal operation device (15) is provided with a mechanical connection interface; a multifunctional mechanical arm (16) is arranged at the rear end of the upper part of the frame (2); bogies (3) are mounted at two ends of the lower part of the frame (2), a power transmission system (39) and a hydraulic system (38) are mounted at the lower part of the frame (2), a quick-change connector (9) is mounted at the operation end of the multifunctional mechanical arm (16) through a rotary seat (41), and a terminal operation device (15) selected according to operation contents is connected with the quick-change connector (9) at the operation end of the multifunctional mechanical arm (16) through a mechanical connection interface; and a mechanical locking device for locking the multifunctional mechanical arm (16) from moving along with the running of the vehicle.

10. The work vehicle with a multifunctional work apparatus according to claim 9, characterized in that: the mechanical locking device comprises a locking seat and a locking pin, the locking seat is fixedly arranged, a positioning hole is formed in the locking seat, a locking hole is formed in the multifunctional mechanical arm (16), and when the positioning hole of the locking seat is overlapped with the locking hole of the multifunctional mechanical arm (16) and the locking pin is inserted into the positioning hole and the locking hole, the multifunctional mechanical arm (16) is in a locking state; the locking seat is fixed between the loading position (10) of the terminal operation device and the rotary seat (41).