CN107386176A - A kind of combined sweeper - Google Patents

Abstract

The invention discloses a road-rail dual-purpose washing and sweeping vehicle, which comprises a vehicle body, which includes a vehicle frame and a driver's cab arranged on the frame; a road running system, including a chassis arranged under the vehicle frame, a Rubber tires and the power compartment arranged on the frame; railway steering system, including the front bogie and the rear bogie arranged under the frame; cleaning system, including the dustbin and water tank arranged on the The exhaust fan on the frame, the garbage collection suction port arranged under the frame and connected to the garbage bin, and the sweeping plate arranged under the frame; the high and low speed hydraulic drive system, including oil inlet, oil outlet, electromagnetic switch valve, The left rear travel motor and the right rear travel motor communicated with the oil inlet and the oil outlet, the left front travel motor and the right front travel motor communicated with the oil inlet and the oil outlet through the electromagnetic switch valve, and are arranged at the oil inlet and the outlet Motor flushing system between ports. The invention is suitable for cleaning roads and railways, and has high cleaning efficiency.

Description

A road and rail dual-purpose washing and sweeping vehicle

technical field

The invention relates to the technical field of trams, in particular to a road-rail dual-purpose washing and sweeping vehicle.

Background technique

As a kind of public transportation, tram has developed rapidly in our country in recent years. Tram is a kind of low-capacity rail transit suitable for mixed roads. It has the advantages of small line curve radius, strong climbing ability, energy saving, no pollution, low noise, and low investment. In order to build an ecological city, it is one of the key factors in the operation of trams to ensure that the operation lines of trams, the facilities around the lines, the depots and the facilities around the platforms are cleaned and cleaned.

Contents of the invention

In view of the problems referred to above, it is necessary to provide a road-rail dual-purpose washing and sweeping vehicle to solve the cleaning problem of tram tracks and roads.

The technical scheme adopted in the present invention: a road-rail dual-purpose washing and sweeping vehicle, comprising:

a vehicle body, which includes a vehicle frame and a cab arranged at one end of the vehicle frame;

Road running system, which includes a chassis arranged below the vehicle frame, rubber tires arranged at both ends of the chassis, and a power cabin arranged above the vehicle frame;

A railway steering system comprising a front bogie and a rear bogie disposed below the vehicle frame;

The cleaning system includes a dustbin arranged above the vehicle frame, an exhaust fan arranged above the vehicle frame and communicated with the dustbin, a water tank arranged above the vehicle frame, and a water tank arranged above the vehicle frame. A garbage collection suction port under the vehicle frame and connected to the garbage bin, and a sweeping plate arranged under the vehicle frame;

A high-low speed hydraulic drive system, which includes an oil inlet, an oil outlet, an electromagnetic switch valve, a left rear travel motor and a right rear travel motor directly connected to the oil inlet and the oil outlet, and the oil inlet The port and the oil outlet are connected through the electromagnetic switch valve to the left front travel motor and the right front travel motor, and the motor flushing system is arranged between the oil inlet and the oil outlet.

The beneficial effects of the present invention are: through the lifting and lowering of the front bogie and the rear bogie, the switching between the two driving modes of road and railway is completed, so as to realize driving on different roads; Complete the cleaning of the road or railway track, the cleaning is more convenient and the cleaning efficiency is higher; through the setting of the high and low speed hydraulic drive system, the fast switching between high and low speeds is realized, and the speed in the high speed mode will be that of the low speed mode under the same circumstances double.

Description of drawings

Fig. 1 shows the structural representation of the road and railway dual-purpose washing and sweeping vehicle in the present invention.

Fig. 2 shows the front view of the front bogie in the present invention.

Fig. 3 shows the top view of the front bogie in the present invention.

Fig. 4 shows the top view of the rear bogie in the present invention.

Fig. 5 shows the front view of the rear bogie in the present invention.

Fig. 6 is a schematic structural diagram of the high and low speed hydraulic drive system of the present invention.

detailed description

The present invention will be further described below in conjunction with the accompanying drawings, and the examples given are only for explaining the present invention, and are not intended to limit the scope of the present invention.

As shown in FIG. 1 , it is a structural schematic diagram of a road-rail dual-purpose washing and sweeping vehicle 100 provided by the present invention, including a vehicle body 10 , a road running system 20 , a railway steering system 30 , a cleaning system 40 and a high and low speed hydraulic drive system 50 .

The vehicle body 10 is the main frame structure of the entire vehicle, including a vehicle frame 11 and a driver's cab 12 , and the driver's cab 12 is arranged at one end of the vehicle frame 11 .

The road running system 20 is the main body driving the entire vehicle in road mode, including a chassis 21, rubber tires 22 and a power cabin 23. The chassis 21 is arranged under the frame 11. In this embodiment, the chassis 21 adopts Tianjin 5000 wheelbase The chassis 21 and the rubber tires 22 are arranged at both ends of the chassis 21, and are driven by the chassis 21. The power cabin 23 is arranged above the vehicle frame 11 as the power source of the whole vehicle.

The railway steering system 30, as the main body of driving and steering of the whole vehicle in railway mode, includes a front bogie 31 and a rear bogie 32. The rear bogie 32 is hydraulically driven and is the main body of driving in the railway mode. The front bogie 31 It is a follow-up bogie, which mainly plays a guiding role.

As shown in Figure 2 and Figure 3, the front bogie 31 includes a first fixed base 311A, a second fixed base 311B, a first support arm 312, a second support arm 313, a third support arm 314, a front hydraulic cylinder 315, a front Cross beam 316, front bearing block 317, front guide wheel 318 and front tie rod 319. The first fixing seat 311A and the second fixing seat 311B are arranged side by side on the vehicle frame 11 for fixing other components. The first support arm 312, the second support arm 313 and the third support arm 314 are the main parts of motion transmission. One end of the first support arm 312 is hinged on the first fixed seat 311A and can rotate around the first fixed seat 311A. Then it is hinged with one end of the second support arm 313, and the two can rotate relative to each other. One hinged end of the support arm 313 is fixed on the front beam 316 at the same time, and the other end of the third support arm 314 is hinged on the second fixing base 311B and can rotate around the second fixing base 311B. The front hydraulic cylinder 315 is used as the driving body for lifting and lowering the front bogie 31. One end of the front hydraulic cylinder 315 is hinged on the second fixed seat 311B, and the other end is hinged on the joint between the first support arm 312 and the second support arm 313. The expansion and contraction of the front hydraulic cylinder 315 will drive the corresponding rotation of the first support arm 312, the second support arm 313 and the third support arm 314, and then convert the telescopic action of the front hydraulic cylinder 315 into the first support arm 312, the second support arm 313 and the rotation action of the third support arm 314. The mutually hinged ends of the second support arm 313 and the third support arm 314 are fixed on the front beam 316, thus, the actions of the first support arm 312, the second support arm 313 and the third support arm 314 will drive the movement of the front beam 316. rise and fall. A front bearing seat 317 is respectively hinged at both ends of the front beam 316, and the two front bearing seats 317 are arranged symmetrically. The synchronicity of the deflection of the two front guide wheels 318. Two front guide wheels 318 are respectively symmetrically connected with respect to the front beam 316 on each front bearing seat 317 , specifically, the front bearing seat 317 and the front guide wheels 318 are connected through bearings and shafts. The two ends of the front tie rod 319 are respectively fixed on the two front bearing seats 317 and parallel to the front beam 316, so as to ensure that the two front bearing seats 317 swing at the same angle during driving to ensure driving safety and also enable the vehicle to pass through 25m smoothly. The curve radius of the track. Since the front bearing seat 317, the front guide wheel 318 and the front tie rod 319 are connected to each other and finally fixed on the front beam 316, the rising and falling action of the front beam 316 will drive the above components to rise and fall together, and finally the front bogie 31 is realized. retractable. In this embodiment, the number of the hydraulic cylinder, the first support arm 312, the second support arm 313 and the third support arm 314 is set to two, and the four are connected one by one to form a set of three-linkages according to the previous connection method The mechanism is arranged symmetrically between the vehicle frame 11 and the crossbeam, that is, two sets of three-bar linkages act on both ends of the crossbeam at the same time, so that the force on the crossbeam is more uniform, and the rise and fall of the whole set of mechanisms are also more stable and smooth.

As shown in FIGS. 4 and 5 , the rear bogie 32 includes a connecting frame 321 , a rotating support frame 322 , a rear beam 323 , a lifting mechanism 324 , a rear bearing seat 325 , a rear guide wheel 326 , a hydraulic motor 327 and a rear tie rod 328 . The connecting frame 321 is fixed on the vehicle frame 11, and is used for fixing the rear bogie frame 32 on the vehicle frame 11. One end of the rotating support frame 322 is hinged on the connecting frame 321 , and the other end is connected to the rear beam 323 , and the rotating supporting frame 322 can rotate around the connecting point with the connecting frame 321 . One end of the lifting mechanism 324 is arranged on the connecting frame 321, and the other end is connected to the rear beam 323. Specifically, in order to ensure that the lifting mechanism 324 works smoothly, the rear beam 323 is evenly stressed, and saves space. The lifting mechanism 324 includes a connecting shaft 3241 and two The hydraulic cylinder 3242, the connecting shaft 3241 is fixed on the connecting frame 321, one end of the two hydraulic cylinders 3242 is fixed on the connecting shaft 3241, and the other end is connected to the rear beam 323, and the two hydraulic cylinders 3242 are arranged symmetrically. The rear beam 323 moves under the drive of the two hydraulic cylinders 3242. Compared with one hydraulic cylinder, the force on the rear beam 323 will be more uniform. At the same time, since the two hydraulic cylinders act at the same time, each hydraulic cylinder needs to provide The force is smaller, so the size design of each component can be smaller, so as to avoid large-size components taking up more space. The rear bearing seat 325 is symmetrically arranged at both ends of the rear cross beam 323. Specifically, the connection mode between the rear bearing seat 325 and the rear cross beam 323 is hinged, so that the rear bearing seat 325 can swing at a small angle around the two ends of the rear cross beam 323 to accommodate The synchronization of two rear guide wheels 326 deflection on the same side when passing through the small curve radius on the track. The rear guide wheel 326 and the hydraulic motor 327 are respectively arranged on both sides of the rear bearing seat 325 and are connected to each other. The hydraulic motor 327 is used to drive the rear guide wheel 326 to run. One by one matching assembly. The rear tie rod 328 is arranged on the rear bearing seat 325. Specifically, the two ends of the rear tie rod 328 are respectively connected with the two rear bearing seats 325 to ensure that the two rear bearing seats 325 swing at the same angle during driving, ensuring It is safe and can also make the vehicle pass through the track with a curve radius of 25m smoothly. In order to further strengthen the cleaning effect, in the present embodiment, the rear bogie 32 also includes a track groove suction port 329 and a flushing nozzle 46. The track groove suction port 329 vertically penetrates the rear beam 323 and is facing the track groove. The track groove suction port 329 and the rear beam 323 Connected by a circular slideway, the suction port 329 of the track groove can rotate at a small angle around the center point of the circular track to ensure that the suction port 329 of the track groove will not break away from the rail surface when passing a track with a radius of 25m. The suction port 329 of the track groove mainly Used to collect sundries in the rail groove, the flushing nozzle 46 is fixed on the rear bearing seat 325, specifically, the flushing nozzle 46 is aligned with the rail groove to complete the flushing of the interior of the rail groove.

The cleaning system 40, as the main structure of the whole vehicle cleaning, includes a dustbin 41, an exhaust fan 42, a water tank 43, a garbage collection suction port 44 and a sweeping plate 45. Garbage box 41 is arranged on the top of vehicle frame 11, is used for accommodating the sundries collected, exhaust fan 42 is arranged on the top of vehicle frame 11 and communicates with garbage box 41, is used for forming negative pressure in garbage box 41, and water tank 43 is provided with On the top of the vehicle frame 11, cleaning water is provided for the cleaning process. The garbage collection suction port 44 is arranged below the vehicle frame 11 and communicates with the garbage box 41. Under the condition of negative pressure in the garbage box 41, debris on the track or road surface can be removed. Absorbed into the garbage bin 41, the sweeping plate 45 is arranged under the vehicle frame 11, and is used to sweep the garbage on both sides of the track or the road to the middle position. In order to further strengthen the cleaning effect, a flushing nozzle 46 is also arranged around the sweeping plate 45 and the garbage collection suction port 44, which is used to flush the track or the road surface; One end of the garbage collection suction port 44 protruding into the dustbin 41 is provided with a rain shower nozzle 47, which is used to shower and rinse the sundries entering the dustbin 41 through the garbage collection suction mouth 44, so as to achieve the purpose of dust reduction.

The high and low speed hydraulic drive system 50 is the main component that realizes speed switching when the whole vehicle is in the railway mode, as shown in Figure 6, it includes an oil inlet 51, an oil outlet 52, an electromagnetic switch valve 53, a left rear traveling motor 54L, a right Rear travel motor 54R, left front travel motor 55L, right front travel motor 55R and motor flushing system 56 . The oil inlet 51 and the oil outlet 52 are used as the inlet and outlet of hydraulic oil circulation. The oil inlet 51 and the oil outlet 52 are directly connected to the left rear travel motor 54L and the right rear travel motor 54R. The hydraulic oil will enter the left rear under any circumstances. The travel motor 54L and the right rear travel motor 54R circulate. The oil inlet 51 and the oil outlet 52 are respectively connected to the left front travel motor 55L and the right front travel motor 55R through the electromagnetic switch valve 53. The electromagnetic switch valve 53 controls whether the hydraulic oil enters the left front travel. The motor 55L and the right front travel motor 55R circulate. Specifically, when the entire system is in the high-speed mode, the electromagnetic switch valve 53 is closed, and the hydraulic oil of the system enters the left rear travel motor 54L and the right rear travel motor 54R through the oil inlet 51. , the left rear travel motor 54L and the right rear travel motor 54R are powered to rotate, and the left front travel motor 55L and the right front travel motor 55R follow suit; when the whole system is in the low speed mode, the electromagnetic switch valve 53 is opened, and the hydraulic oil of the system passes through the oil inlet Port 51 enters the left rear travel motor 54L, the right rear travel motor 54R, the left front travel motor 55L and the right front travel motor 55R. All four motors are driven by power to rotate. Since the hydraulic oil flow of the system is constant, the speed in high speed mode will be the same. Twice the speed in low speed mode. The motor flushing system 56 includes a flushing valve 561 and a flushing overflow valve 562. The flushing valve 561 and the flushing overflow valve 562 are arranged in series between the oil inlet 51 and the oil outlet 52, and the flushing overflow valve 562 is directly connected Left rear travel motor 54L, right rear travel motor 54R, left front travel motor 55L, and right front travel motor 55R. When it is necessary to flush the entire system, open the flushing valve 561, and the hydraulic oil will flow through the flushing valve 561 through the flushing overflow valve 562 to the left rear traveling motor 54L, the right rear traveling motor 54R, the left front traveling motor 55L and the right front traveling motor 55R. Internal flushing, at the same time, when the working pressure of the flushing valve 561 exceeds the preset value, the flushing overflow valve 562 will automatically open to overflow, so as to play the role of overload protection. In the actual working process, there is leakage or loss of hydraulic oil. In order to ensure the constant amount of hydraulic oil in the whole system, the high and low speed hydraulic drive system 50 also includes a backup oil inlet 57 and a plurality of check valves 58. The oil inlet 57 is directly connected to the left front travel motor 55L and the right front travel motor 55R through the one-way valve 58, so when the hydraulic oil in the system is reduced, the spare hydraulic oil can pass through the backup oil inlet 57 and then through the one-way valve 58 Into the whole system to replenish the reduced hydraulic oil in the whole system, the check valve 58 can prevent the hydraulic oil in the system from flowing back to the spare oil inlet 57 . In order to grasp the working pressure of the whole system in time, the high and low speed hydraulic drive system 50 also includes an oil pressure sensor 59, which is arranged between the oil inlet 51 and the oil outlet 52, and is used to detect the working pressure of the whole system in real time , and transmit the detected pressure value to the monitoring center in real time.

The working principle of the present invention: during the road mode, the front bogie 31 and the rear bogie 32 are raised, relying on the chassis 21 to drive the rubber tires 22, and at the same time control the height of the sweeping plate 45 and the garbage collection suction port 44 to clean the road surface and collect garbage. During the railway mode, the front bogie 31 and the rear bogie 32 are put down, and the chassis 21 rises until the rubber tire 22 breaks away from the track surface, and the vehicle is driven by the hydraulic drive of the rear bogie 32, and the sweeping disc 45 and the The height of the garbage collection suction port 44 cleans the railway road surface and the track and collects garbage.

The beneficial effects of the present invention are: through the lifting and lowering of the front bogie and the rear bogie, the switching between the two driving modes of road and railway is completed, so as to realize driving on different roads; Complete the cleaning of the road or railway track, the cleaning is more convenient and the cleaning efficiency is higher; through the setting of the high and low speed hydraulic drive system, the fast switching between high and low speeds is realized, and the speed in the high speed mode will be that of the low speed mode under the same circumstances double.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention Inside.

Claims (9)

1. A road-rail dual-purpose washing and sweeping car, characterized in that, comprising, a vehicle body, which includes a vehicle frame and a cab arranged at one end of the vehicle frame; Road running system, which includes a chassis arranged below the vehicle frame, rubber tires arranged at both ends of the chassis, and a power cabin arranged above the vehicle frame; A railway steering system comprising a front bogie and a rear bogie disposed below the vehicle frame; The cleaning system includes a dustbin arranged above the vehicle frame, an exhaust fan arranged above the vehicle frame and communicated with the dustbin, a water tank arranged above the vehicle frame, and a water tank arranged above the vehicle frame. A garbage collection suction port under the vehicle frame and connected to the garbage bin, and a sweeping plate arranged under the vehicle frame; A high-low speed hydraulic drive system, which includes an oil inlet, an oil outlet, an electromagnetic switch valve, a left rear travel motor and a right rear travel motor directly connected to the oil inlet and the oil outlet, and the oil inlet The port and the oil outlet are connected through the electromagnetic switch valve to the left front travel motor and the right front travel motor, and the motor flushing system is arranged between the oil inlet and the oil outlet. 2. The road-rail dual-purpose washing and sweeping vehicle according to claim 1, wherein the front bogie comprises a first fixed seat, a second fixed seat, a first support arm, a second support arm, a third support arm, a front hydraulic Oil cylinder, front beam, front bearing seat, front guide wheel and front tie rod, the first fixed seat and the second fixed seat are arranged side by side on the vehicle frame, and one end of the first support arm is hinged to the On the first fixed seat, the other end is hinged with one end of the second support arm, the other end of the second support arm is hinged with one end of the third support arm, and the third support arm is hinged with the first support arm. The hinged ends of the two support arms are simultaneously fixed on the front beam, the other end of the third support arm is hinged on the second fixing base, and one end of the front hydraulic cylinder is hinged on the second fixing base, The other end is hinged at the joint between the first support arm and the second support arm, and each of the two ends of the front beam is hinged with a front bearing seat, and each of the front bearing seats is opposite to the front beam. Two front guide wheels are arranged symmetrically, and the two ends of the front tie rod are respectively fixed on the two front bearing seats and parallel to the front cross beam. 3. The road-rail dual-purpose washing and sweeping vehicle according to claim 1, wherein the rear bogie includes a connecting frame, a rotating support frame, a rear beam, a lifting mechanism, a rear bearing seat, a rear guide wheel, a hydraulic motor and a rear Tie rod, the connecting frame is fixed on the vehicle frame, one end of the rotating support frame is hinged on the connecting frame, and the other end is connected to the rear beam, and one end of the lifting mechanism is arranged on the connecting frame , the other end is connected to the rear beam, the rear bearing housing is symmetrically arranged at both ends of the rear beam, the rear guide wheel and the hydraulic motor are respectively arranged on both sides of the rear bearing housing and connected to each other, the The rear tie rod is arranged on the rear bearing seat. 4. The road-rail dual-purpose washing and sweeping vehicle according to claim 3, wherein the lifting mechanism includes a connecting shaft and two hydraulic cylinders, the connecting shaft is fixed on the connecting frame, and the two hydraulic cylinders One end of the cylinder is fixed on the connecting shaft, the other end is connected to the beam, and the two hydraulic cylinders are arranged symmetrically. 5. The road-rail dual-purpose washing and sweeping vehicle according to claim 3, wherein the rear bogie also includes a rail groove suction port and a flushing nozzle, and the rail groove suction port vertically passes through the rear beam and is connected to the rear beam. The beam is connected by a circular slideway, and the flushing nozzle is fixed on the rear bearing seat. 6. The road-rail dual-purpose washing and sweeping vehicle according to claim 1, characterized in that, flushing nozzles are also arranged around the sweeping plate and the garbage collection suction port, and one end of the garbage collection suction port extending into the dustbin is provided There are rain shower heads. 7. The road-rail dual-purpose washing and sweeping vehicle according to claim 1, wherein the motor flushing system includes a flushing valve and a flushing overflow valve, and the flushing valve and the flushing overflow valve are arranged in series Between the oil inlet and the oil outlet, the flushing overflow valve is directly connected to the left rear travel motor, the right rear travel motor, the left front travel motor and the right front travel motor. 8. The highway-rail dual-purpose washing and sweeping vehicle according to claim 1, wherein the high and low speed hydraulic drive system also includes an oil pressure sensor, and the oil pressure sensor is arranged at the oil inlet and the oil outlet between mouths. 9. The road-rail dual-purpose washing and sweeping vehicle according to claim 1, wherein the high and low speed hydraulic drive system also includes a spare oil inlet and a plurality of one-way valves, and the spare oil inlet passes through the The one-way valve is directly connected to the left front travel motor and the right front travel motor.