CN211498664U - Road sweeper - Google Patents
Road sweeper Download PDFInfo
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- CN211498664U CN211498664U CN201921747835.8U CN201921747835U CN211498664U CN 211498664 U CN211498664 U CN 211498664U CN 201921747835 U CN201921747835 U CN 201921747835U CN 211498664 U CN211498664 U CN 211498664U
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- way reversing
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- 241001417527 Pempheridae Species 0.000 title claims abstract description 92
- 239000003921 oil Substances 0.000 claims description 295
- 239000010729 system oil Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 5
- 238000010408 sweeping Methods 0.000 description 12
- 239000002699 waste material Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 230000002457 bidirectional effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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Abstract
The utility model provides a sweeper, which comprises a first overflow valve, a first three-position four-way reversing valve and a second three-position four-way reversing valve, wherein the first three-position four-way reversing valve and the second three-position four-way reversing valve adopt M-shaped reversing valves; an oil inlet of the first overflow valve is connected with an oil inlet of the first three-position four-way reversing valve, an oil return port of the first overflow valve is connected with an oil inlet of the second three-position four-way reversing valve, an oil return port of the first three-position four-way reversing valve is connected with an oil inlet of the second three-position four-way reversing valve, an output end of the first three-position four-way reversing valve is connected with the sucker lifting oil cylinder, and an output end of the second three-position four-way reversing valve is connected with the first hydraulic motor. Through the arrangement of the series connection and the overflow valve, the rotation of the sweeper is not influenced when the sucker is lifted, so that the sucker and the sweeper can operate simultaneously, the oil path structure is simplified by utilizing the arrangement of the series connection type oil path, and the line layout of the sweeper is optimized.
Description
Technical Field
The utility model relates to a new forms of energy sanitation equipment field especially relates to a machine of sweeping floor.
Background
At present, the vacuum suction floor sweeper available on the market generally has wheels for running along the floor and at least one rotatably driven sweeper brush for sweeping the floor and a vacuum dustbin. The floor can be cleaned by means of such a floor sweeper, for example a street, a sidewalk or a parking lot. At least one brush of the floor sweeper acts on the floor to be cleaned and directs the sweeper to the suction nozzle assembly, where it is sucked in and carried by a conduit connected thereto into the vacuum waste bin. For this purpose, the vacuum waste bin is loaded by the suction device with a negative pressure, so that a suction flow is formed from the suction nozzle assembly to the vacuum waste bin and from the vacuum waste bin to the suction device. The sweeping machine is configured to be self-propelled, for example in the form of a vehicle, wherein the vacuum waste bin can be arranged in the region of the rear of the vehicle and the vehicle can have a driver's cabin in the region of the front. The sweeper device and the suction nozzle assembly are arranged in front of the traveling direction of the sweeper, the sweeper device is put down when sweeping is needed, the sweeper is driven to rotate, garbage is gathered in front of the suction nozzle assembly, and the garbage is sucked into a rear garbage can by the suction nozzle assembly.
In the actual sweeping process, the condition of the road surface is complex, the sweeper is required to cope with various complex road conditions and different modes in time, the control oil circuit of the existing swing arm, the existing sweeper and the existing sucker is complex, the layout of the oil circuit of the sweeper is affected, and some devices of the swing arm, the sweeper and the sucker cannot work simultaneously, so that the working efficiency and the use convenience are affected.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a clean simple street sweeper of equipment function and oil circuit overall arrangement simultaneously.
In order to realize the first purpose of the utility model, the utility model provides a sweeper, which comprises a sucker, a sucker lifting cylinder, a first hydraulic motor and a first sweeping brush, wherein the sucker lifting cylinder is connected with the sucker and drives the sucker to move, the first hydraulic motor is connected with the first sweeping brush and drives the first sweeping brush to rotate, the sweeper further comprises a first overflow valve, a first three-position four-way reversing valve and a second three-position four-way reversing valve, and the first three-position four-way reversing valve and the second three-position four-way reversing valve adopt M-shaped reversing valves; an oil inlet of the first overflow valve is connected with an oil inlet of the first three-position four-way reversing valve, an oil return port of the first overflow valve is connected with an oil inlet of the second three-position four-way reversing valve, an oil return port of the first three-position four-way reversing valve is connected with an oil inlet of the second three-position four-way reversing valve, an output end of the first three-position four-way reversing valve is connected with the sucker lifting oil cylinder, and an output end of the second three-position four-way reversing valve is connected with the first hydraulic motor.
According to the scheme, the M-shaped three-position four-way reversing valve is adopted, and the oil return port of the first three-position four-way reversing valve is connected with the oil inlet of the second three-position four-way reversing valve by a serial connection method, and the first overflow valve is connected between the oil inlet of the first three-position four-way reversing valve and the oil inlet of the second three-position four-way reversing valve, because the hydraulic motor for driving the sweeper brush has relatively low requirement on oil pressure, the hydraulic motor is arranged at the rear stage of the oil circuit, when the sucker lifting oil cylinder drives the sucker to lift, the first overflow valve can be conducted by inputting larger oil pressure, and then the overflowing oil drives the hydraulic motor and the sweeper to rotate, the sweeping operation of the sweeper is not influenced while the sucker is lifted, so that the sucker and the sweeper can operate simultaneously, the oil circuit structure is simplified by using the serial oil circuit layout, and the circuit layout of the sweeper is optimized.
According to a further scheme, the sweeper further comprises a first swing arm, a second swing arm, a first telescopic oil cylinder, a second telescopic oil cylinder, a third three-position four-way reversing valve, a fourth three-position four-way reversing valve, a second overflow valve, a second hydraulic motor and a second sweeper, wherein the third three-position four-way reversing valve and the fourth three-position four-way reversing valve adopt M-shaped reversing valves; the second hydraulic motor is connected with the second sweeper and drives the second sweeper to rotate, the output end of the second three-position four-way reversing valve is connected with the second hydraulic motor, the first hydraulic motor and the first sweeper are arranged on the first swing arm, the second hydraulic motor and the second sweeper are arranged on the second swing arm, the first telescopic oil cylinder is connected with the first swing arm and drives the first swing arm to move, and the second telescopic oil cylinder is connected with the second swing arm and drives the second swing arm to move; an oil inlet of the second overflow valve is connected with an oil inlet of the third three-position four-way reversing valve, an oil return port of the second overflow valve is connected with an oil inlet of the fourth three-position four-way reversing valve, an oil return port of the third three-position four-way reversing valve is connected with an oil inlet of the fourth three-position four-way reversing valve, an oil return port of the fourth three-position four-way reversing valve is connected with an oil inlet of the first three-position four-way reversing valve, an output end of the third three-position four-way reversing valve is connected with the first telescopic oil cylinder, and an output end of the fourth three-position four-.
It is from top to bottom apparent, the street sweeper still can be equipped with two swing arms and two brushes, and utilize serial-type connection to connect the oil return port of third three-position four-way reversing valve and the oil inlet of fourth three-position four-way reversing valve, and connect the second overflow valve between the oil inlet of third three-position four-way reversing valve and the oil inlet of fourth three-position four-way reversing valve, when making the swing arm flexible, the accessible inputs great oil pressure and makes the second overflow valve switch on, then make the flexible hydro-cylinder of overflow fluid drive back level flexible, make two swing arms flexible removal simultaneously, it is flexible removal of time sharing to also control the reversing valve, also do not influence the brush cleaning operation of back level simultaneously, thereby make the width that cleans that the street sweeper can adapt to different ground, and different operation environment, its convenience in utilization that improves the street sweeper.
According to a further scheme, the sweeper further comprises a first lifting oil cylinder and a second lifting oil cylinder, the first lifting oil cylinder is connected with the first swing arm and drives the first swing arm to lift, the second lifting oil cylinder is connected with the second swing arm and drives the second swing arm to lift, and the sucker lifting oil cylinder, the first lifting oil cylinder and the second lifting oil cylinder are connected with the output end of the first three-position four-way reversing valve in parallel.
In a further scheme, a hydraulic lock is connected between the output end of the first three-position four-way reversing valve and the sucker lifting oil cylinder.
Therefore, the lifting oil cylinder is connected with the sucker lifting oil cylinder in parallel, the swing arm and the sucker are driven to lift, and a hydraulic lock is arranged to keep the position of the swing arm and the sucker fixed.
In a further development, the first hydraulic motor and the second hydraulic motor are connected in series.
Therefore, the layout of the oil circuit is optimized by the series arrangement, and the actual cleaning rotation of the sweeper is not influenced.
According to a further scheme, the sweeper further comprises a steering driving device and a diverter valve, an oil port of a steering device of the diverter valve is connected with the steering driving device, and oil ports of other systems of the diverter valve are connected with an oil inlet of a first three-position four-way reversing valve.
Therefore, the steering driving device can work stably through the flow divider valve, and the walking safety of the sweeper is improved.
According to a further scheme, the sweeper further comprises a garbage can, a garbage dumping oil cylinder and a fifth three-position four-way reversing valve, wherein the fifth three-position four-way reversing valve is an M-shaped reversing valve, the garbage dumping oil cylinder is connected with the garbage can and drives the garbage can to rotate, and the garbage dumping oil cylinder is connected with an output end of the fifth three-position four-way reversing valve; an oil inlet of the fifth three-position four-way reversing valve is connected with an oil port of a diverter of the flow divider valve; the output end of the fifth three-position four-way reversing valve is connected with a garbage dumping oil cylinder.
The sweeper further comprises a flip oil cylinder and a sixth three-position four-way reversing valve, wherein the sixth three-position four-way reversing valve is an M-shaped reversing valve, the flip oil cylinder is connected with a cover body of the dustbin and drives the cover body to rotate, and the flip oil cylinder is connected with the output end of the sixth three-position four-way reversing valve; an oil inlet of the sixth three-position four-way reversing valve is connected with an oil port of a diverter of the flow divider valve; and an oil return port of the sixth three-position four-way reversing valve is connected with an oil inlet of the fifth three-position four-way reversing valve.
Therefore, the dumping of the dustbin and the opening of the cover body of the dustbin are both carried out after the dustbin is stopped, and the work of the steering driving device is not needed any more, so that the fifth three-position four-way reversing valve and the sixth three-position four-way reversing valve are arranged on one oil way of the steering driving device, and the structural layout of the oil way is optimized.
The sweeper further comprises an oil tank and a third overflow valve, wherein the third overflow valve is connected between the oil tank and other system oil ports of the flow divider.
In a further scheme, the sweeper further comprises an oil tank and a fourth overflow valve, wherein the fourth overflow valve is connected between the oil tank and an oil return opening of the flow dividing valve.
As can be seen from the above, the third overflow valve serves as the main overflow valve of other system loops, the fourth overflow valve serves as the main overflow valve of the rotary loop, and the third overflow valve and the fourth overflow valve can be arranged outside the flow divider, so that the threshold values of the third overflow valve and the fourth overflow valve can be conveniently adjusted, and thus, the targeted adjustment can be performed according to different working conditions of use environments.
Drawings
Fig. 1 is a block diagram of an oil circuit system in an embodiment of the sweeper of the present invention.
Fig. 2 is an enlarged view of the oil system at a in fig. 1.
Fig. 3 is an enlarged view of the oil system at B in fig. 1.
Fig. 4 is a structural diagram of an oil path control device in an embodiment of the sweeper of the present invention.
Fig. 5 is an exploded view of the oil path control device in the embodiment of the sweeper of the present invention.
Fig. 6 is a structural diagram of a valve block in an embodiment of the sweeper of the present invention.
Fig. 7 is a structural diagram of the valve block in another view angle in the embodiment of the sweeper of the present invention.
Figure 8 is a cross-sectional view of the valve block in the embodiment of the sweeper of the present invention.
Figure 9 is a side view of the valve block in the embodiment of the sweeper of the present invention.
Fig. 10 is a sectional view at a in fig. 9.
Fig. 11 is a sectional view at B in fig. 9.
Fig. 12 is a sectional view at C in fig. 9.
Fig. 13 is a cross-sectional view at D in fig. 9.
The present invention will be further explained with reference to the drawings and examples.
Detailed Description
Referring to fig. 1 to 3, the sweeper comprises a suction cup, a suction cup lifting cylinder 233, a first hydraulic motor 231, a first brush, a first swing arm, a second swing arm, a first telescopic cylinder 237, a second telescopic cylinder 238, a first lifting cylinder 234, a second lifting cylinder 235, a second hydraulic motor 232 and a second brush, wherein the suction cup lifting cylinder 233 is connected with the suction cup and drives the suction cup to move, the first hydraulic motor 231 is connected with the first brush and drives the first brush to rotate, the second hydraulic motor 232 is connected with the second brush and drives the second brush to rotate, the first hydraulic motor 231 and the first brush are arranged on the first swing arm, the second hydraulic motor 232 and the second brush are arranged on the second swing arm, the first telescopic cylinder 237 is connected with the first swing arm and drives the first swing arm to move transversely, the second telescopic cylinder 238 is connected with the second swing arm and drives the second swing arm to move transversely, then, the telescopic oil cylinder is used for driving the sweeper to move transversely, the first lifting oil cylinder 234 is connected with the first swing arm and drives the first swing arm to lift, the second lifting oil cylinder 235 is connected with the second swing arm and drives the second swing arm to lift, and therefore the sweeper can lift.
The sweeper further comprises a dustbin, a first flip oil cylinder 245, a second flip oil cylinder 246, a first garbage dumping oil cylinder 243 and a second garbage dumping oil cylinder 244, wherein the first flip oil cylinder 245 and the second flip oil cylinder 246 are connected with a cover body of the dustbin and drive the cover body to rotate, and the first garbage dumping oil cylinder 243 and the second garbage dumping oil cylinder 244 are connected with the dustbin and drive the dustbin to rotate.
The sweeper further comprises an oil tank 211, a master pump assembly 212, a flow dividing valve 213, a first overflow valve 221, a second overflow valve 222, a third overflow valve 223, a fourth overflow valve 224, a first three-position four-way reversing valve 11, a second three-position four-way reversing valve 12, a third three-position four-way reversing valve 13, a fourth three-position four-way reversing valve 14, a fifth three-position four-way reversing valve 15 and a sixth three-position four-way reversing valve 16. In this embodiment, the diverter valve 213 is an FLD type diverter valve, and the first three-position four-way selector valve 11, the second three-position four-way selector valve 12, the third three-position four-way selector valve 13, the fourth three-position four-way selector valve 14, the fifth three-position four-way selector valve 15, and the sixth three-position four-way selector valve 16 are all M-type selector valves
The master pump assembly 212 is connected with the oil tank 211, the output end of the master pump assembly 212 is connected with the oil inlet P of the diverter valve 213, the other system oil ports B of the diverter valve 213 are connected with the oil inlet of the third three-position four-way reversing valve 13, and the third overflow valve 223 is connected between the oil tank 211 and the other system oil ports of the diverter valve 213.
An oil inlet of the second overflow valve 222 is connected with an oil inlet of the third three-position four-way reversing valve 13, an oil return port of the second overflow valve 222 is connected with an oil inlet of the fourth three-position four-way reversing valve 14, an oil return port of the third three-position four-way reversing valve 13 is connected with an oil inlet of the fourth three-position four-way reversing valve 14, an oil return port of the fourth three-position four-way reversing valve 14 is connected with an oil inlet of the first three-position four-way reversing valve 11, an output end AB of the third three-position four-way reversing valve 13 is connected with the first telescopic oil cylinder 237, a throttle valve is connected between the output ends AB of the third three-position four-way reversing valve 14 and the second telescopic oil.
An oil inlet of the first overflow valve 221 is connected with an oil inlet of the first three-position four-way reversing valve 11, an oil return port of the first overflow valve 221 is connected with an oil inlet of the second three-position four-way reversing valve 12, an oil return port of the first three-position four-way reversing valve 11 is connected with an oil inlet of the second three-position four-way reversing valve 12, an output end of the first three-position four-way reversing valve 11 is connected with the suction cup lifting cylinder 233, the first lifting cylinder 234 and the second lifting cylinder 235 are connected with an output end of the first three-position four-way reversing valve 11 in parallel, a hydraulic lock 236 is connected between the output end of the first three-position four-way reversing valve 11 and the suction cup lifting cylinder 233, the hydraulic lock 236 can adopt a bidirectional hydraulic lock, and the first lifting cylinder 234 and the second lifting cylinder 235.
The output end AB of the second three-position four-way reversing valve 12 is connected with the first hydraulic motor 231, a one-way throttle valve is further connected between the output end AB and the first hydraulic motor 231, the first hydraulic motor 231 and the second hydraulic motor 232 are connected in series, and the rear stage of the second hydraulic motor 232 is connected with an oil tank.
The sweeper further comprises a steering driving device 241 and a steering oil cylinder 242, the steering driving device 241 is connected with the steering oil cylinder 242, an oil inlet of a sixth three-position four-way reversing valve 16 is connected with an oil port of a diverter of the flow dividing valve 213, an oil return port of the sixth three-position four-way reversing valve 16 is connected with an oil inlet of a fifth three-position four-way reversing valve 15, an oil return port of the fifth three-position four-way reversing valve 15 is connected with the steering driving device 241, a first garbage dumping oil cylinder 243 and a second garbage dumping oil cylinder 244 are connected with an output end of the fifth three-position four-way reversing valve 15, a first flip oil cylinder 245 and a second flip oil cylinder 246 are connected with an output end of the sixth three-position four-way. The fourth relief valve 224 is connected between the oil tank 211 and the oil return port of the flow dividing valve 213, the third relief valve 223 and the fourth relief valve 224 are both disposed outside the flow dividing valve 213, the third relief valve serves as a main relief valve of other system circuits, and the fourth relief valve serves as a main relief valve of the steering circuit.
Referring to fig. 4 to 13, the oil circuit system of the present embodiment integrates part of the equipment on an oil circuit control device, the oil circuit control device includes a valve block 3 in addition to the three-position four-way reversing valve and the relief valve, the valve block 3 is provided with a first surface 301, a second surface 302, a third surface 303, a fourth surface 304, and a fifth surface 305, which can be described with reference to the orientation in fig. 6 and 8, the first surface 301 is located on the top surface of the valve block 3, the third surface 303 is located on the bottom surface of the valve block 3, the second surface 302, the fourth surface 304, and the fifth surface 305 are all side surfaces and are all located between the first surface 301 and the third surface 303, the first surface 301 and the third surface 303 are located on opposite sides, and the fourth surface 304 and the fifth surface 305 are located on opposite sides.
The valve block 3 is internally provided with a first output oil path 311, a second output oil path 312, a first oil inlet path 321, a first oil return path 331, a third output oil path 313, a fourth output oil path 314, a second oil inlet path 322, a second oil return path 332, a first overflow oil path 341 and a second overflow oil path 342, the first overflow oil path 341, the first oil inlet path 321 and the second oil return path 332 are communicated, and the second overflow oil path 342 and the second oil inlet path 322 are communicated.
First output oil passage 311 is provided with ports at first surface 301 and second surface 302, respectively, second output oil passage 312 is provided with ports at first surface 301 and second surface 302, respectively, third output oil passage 313 is provided with ports at first surface 301 and second surface 302, respectively, and fourth output oil passage 314 is provided with ports at first surface 301 and second surface 302, respectively.
The first oil inlet path 321, the first oil return path 331, the second oil inlet path 322, and the second oil return path 332 are all provided with interfaces on the first surface 301, the first oil return path 331 is further provided with interfaces on the fourth surface 304, and the first overflow path 341 and the second overflow path 342 are all provided with interfaces on the third surface 303.
The valve block 3 is further provided therein with a fifth output oil path 315, a sixth output oil path 316, a third oil inlet oil path 323, a third oil return oil path 333, a seventh output oil path 317, an eighth output oil path 318, a fourth oil inlet oil path 324, a fourth oil return oil path 334, a third overflow oil path 343, and a fourth overflow oil path 344.
The third oil return path 333 communicates with the second oil-in path 322, the third overflow path 343, the third oil-in path 323, and the fourth oil return path 334, and the fourth overflow path 344 communicates with the fourth oil-in path 324.
Fifth output oil path 315 is provided with interfaces on first surface 301 and second surface 302, respectively, sixth output oil path 316 is provided with interfaces on first surface 301 and second surface 302, respectively, seventh output oil path 317 is provided with interfaces on first surface 301 and second surface 302, respectively, and eighth output oil path 318 is provided with interfaces on first surface 301 and second surface 302, respectively;
the third oil inlet passage 323, the third oil return passage 333, the fourth oil inlet passage 324, and the fourth oil return passage 334 are all provided with interfaces on the first surface 301, and the third overflow passage 343 and the fourth overflow passage 344 are all provided with interfaces on the third surface 303.
The output oil paths are all arranged in an L-shaped oil path, and the output oil paths and the connectors are arranged up and down and are arranged along the length direction of the valve block. The first oil inlet passage 321 and the second oil return passage 332 are connected in a V shape, the second oil inlet passage 322 and the third oil return passage 333 are connected in a V shape, and the third oil inlet passage 323 and the fourth oil return passage 334 are connected in a V shape. Therefore, the space of each oil path is fully utilized, the valve blocks are arranged without interference, and compared with the arrangement of oil pipes in complex connection, the valve block oil path is more highly integrated and more stable in operation.
The first three-position four-way selector valve 11, the second three-position four-way selector valve 12, the third three-position four-way selector valve 13 and the fourth three-position four-way selector valve 14 are all disposed on the first surface 301, the first three-position four-way selector valve 11 is correspondingly connected to the first output oil passage 311, the second output oil passage 312, the first oil inlet passage 321 and the first oil return passage 331, the second three-position four-way selector valve 12 is correspondingly connected to the third output oil passage 313, the fourth output oil passage 314, the second oil inlet passage 322 and the second oil return passage 332, the third three-position four-way selector valve 13 is correspondingly connected to the fifth output oil passage 315, the sixth output oil passage 316, the third oil inlet passage 323 and the third oil return passage 333, and the fourth three-position four-way selector valve 14 is correspondingly connected to the seventh output oil passage 317, the eighth output oil passage 318, the fourth oil inlet passage 324 and the fourth oil return passage 334.
Both the first relief valve 221 and the second relief valve 222 are provided on the third surface 303, and the first relief valve 221 is connected to the first relief oil passage 341 and the second relief oil passage 342, respectively. The second relief valve 222 is connected to the third relief oil passage 343 and the fourth relief oil passage 344, respectively.
The valve block 3 is internally provided with a second mounting groove 352, a steering oil path 355 and a sixth oil return path 367, the second mounting groove 352 is communicated between the steering oil path and the sixth oil return path, and the fourth relief valve 224 is mounted at the second mounting groove 352. The other system oil passage 353 and the steering oil passage 355 are each provided with an interface at the fifth surface 355, the sixth oil return passage 367 is provided with an interface at the second surface 352, and the fifth oil return passage 354 is provided with an interface at the surface opposite to the second surface 352. The third and fourth relief valves 223 and 224 are provided on the valve block 3 outside the flow dividing valve, which facilitates adjustment of the oil path.
Above-mentioned embodiment is only the utility model discloses a preferred embodiment, to the connection drive of more equipment, also can establish ties it on other system branches, perhaps reduce the series connection of equipment, utilize the series connection of control valve and the connection of overflow valve, alright realize the simultaneous operation of equipment, the series connection or the parallelly connected of hydro-cylinder of each equipment of course can adjust according to actual demand, the configuration quantity including each equipment also can adjust according to actual demand.
From the above, by adopting the M-shaped three-position four-way reversing valve and connecting the oil return port of the first three-position four-way reversing valve with the oil inlet of the second three-position four-way reversing valve by a serial connection method, and the first overflow valve is connected between the oil inlet of the first three-position four-way reversing valve and the oil inlet of the second three-position four-way reversing valve, because the requirement of the hydraulic motor for driving the sweeper brush on the rotating speed is not high relatively, the hydraulic motor is arranged at the rear stage of the oil circuit, when the sucker lifting cylinder drives the sucker to lift, the first overflow valve can be conducted by inputting larger oil pressure, and then the overflowing oil drives the hydraulic motor and the sweeper to rotate, the sweeping operation of the sweeper is not influenced while the sucker is lifted, so that the sucker and the sweeper can operate simultaneously, the oil circuit structure is simplified by using the serial oil circuit layout, and the circuit layout of the sweeper is optimized.
The sweeper can also be provided with two swing arms and two wipers, the oil return port of the third three-position four-way reversing valve is connected with the oil inlet of the fourth three-position four-way reversing valve by utilizing a serial connection method, and the second overflow valve is connected between the oil inlet of the third three-position four-way reversing valve and the oil inlet of the fourth three-position four-way reversing valve, so that when the swing arms stretch, the second overflow valve can be switched on by inputting large oil pressure, then the overflowing oil drives the rear-stage telescopic oil cylinder to stretch, the two swing arms can simultaneously stretch and move, the reversing valves can be controlled to stretch and move in a time-sharing manner, and the rear-stage wipers can not be greatly influenced to rotate, so that the sweeper can adapt to the cleaning widths of different grounds, and different operating environments, and the use convenience of the sweeper is.
The lifting oil cylinder is connected with the sucker lifting oil cylinder in parallel to drive the swing arm and the sucker to lift, and a hydraulic lock is arranged to keep the positions of the swing arm and the sucker fixed. The layout of the oil circuit is optimized by the series arrangement, and the actual sweeping rotation of the sweeping brush is not influenced. The steering driving device can be ensured to work stably through the flow divider valve, so that the walking safety of the sweeper is improved. Because the dumping of the dustbin and the opening of the cover body of the dustbin are both carried out after the dustbin is stopped, the work of the steering driving device is not needed, and therefore the fifth three-position four-way reversing valve and the sixth five three-position four-way reversing valve are arranged on one oil way of the steering driving device, and the structural layout of the oil way is optimized. The third overflow valve is used as a main overflow valve of other system loops, the fourth overflow valve is used as a main overflow valve of the rotary loop, the third overflow valve and the fourth overflow valve can be arranged outside the flow dividing valve, the threshold values of the third overflow valve and the fourth overflow valve can be conveniently adjusted, and accordingly targeted adjustment can be performed according to different service environment working conditions.
In addition, the oil way is arranged in the valve block, so that the pipeline connection can be realized in the valve block, the oil way arrangement is optimized and simplified by utilizing the highly integrated oil way arrangement, and the reliability of the oil way is also greatly improved. Through all setting up tribit four-way reversing valve and the interface that corresponds on the first surface to and set up output oil circuit's another interface in second surface department, and set up the overflow valve on the third surface, thereby optimize the exterior spatial arrangement of valve block, make the valve block can bear more functional modules, make oil circuit controlling means more highly integrated, reduce the space and occupy. And the arrangement of the V-shaped oil way is convenient for processing and manufacturing. The third overflow valve and the fourth overflow valve are arranged on the valve block, the third overflow valve serves as a main overflow valve of other system loops, the fourth overflow valve serves as a main overflow valve of the rotary loop, the third overflow valve and the fourth overflow valve can be arranged on the valve block outside the flow dividing valve, the threshold values of the third overflow valve and the threshold values of the fourth overflow valve can be conveniently adjusted, and therefore the valve block can be adjusted in a targeted mode according to different working conditions of use environments.
Claims (10)
1. The sweeper comprises a sucker, a sucker lifting cylinder, a first hydraulic motor and a first sweeper brush, wherein the sucker lifting cylinder is connected with the sucker and drives the sucker to move, and the first hydraulic motor is connected with the first sweeper brush and drives the first sweeper brush to rotate;
the method is characterized in that:
the sweeper further comprises a first overflow valve, a first three-position four-way reversing valve and a second three-position four-way reversing valve, wherein the first three-position four-way reversing valve and the second three-position four-way reversing valve are M-shaped reversing valves;
the oil inlet of the first overflow valve is connected with the oil inlet of the first three-position four-way reversing valve, the oil return port of the first overflow valve is connected with the oil inlet of the second three-position four-way reversing valve, the oil return port of the first three-position four-way reversing valve is connected with the oil inlet of the second three-position four-way reversing valve, the output end of the first three-position four-way reversing valve is connected with the sucker lifting oil cylinder, and the output end of the second three-position four-way reversing valve is connected with the first hydraulic motor.
2. The sweeper of claim 1, wherein:
the sweeper further comprises a first swing arm, a second swing arm, a first telescopic oil cylinder, a second telescopic oil cylinder, a third three-position four-way reversing valve, a fourth three-position four-way reversing valve, a second overflow valve, a second hydraulic motor and a second sweeper brush, wherein the third three-position four-way reversing valve and the fourth three-position four-way reversing valve are M-shaped reversing valves;
the second hydraulic motor is connected with the second sweeper and drives the second sweeper to rotate, the output end of the second three-position four-way reversing valve is connected with the second hydraulic motor, the first hydraulic motor and the first sweeper are arranged on the first swing arm, the second hydraulic motor and the second sweeper are arranged on the second swing arm, the first telescopic oil cylinder is connected with the first swing arm and drives the first swing arm to move, and the second telescopic oil cylinder is connected with the second swing arm and drives the second swing arm to move;
the oil inlet of the second overflow valve is connected with the oil inlet of the third three-position four-way reversing valve, the oil return port of the second overflow valve is connected with the oil inlet of the fourth three-position four-way reversing valve, the oil return port of the third three-position four-way reversing valve is connected with the oil inlet of the fourth three-position four-way reversing valve, the oil return port of the fourth three-position four-way reversing valve is connected with the oil inlet of the first three-position four-way reversing valve, the output end of the third three-position four-way reversing valve is connected with the first telescopic oil cylinder, and the output end of the fourth three-position four-way reversing valve is connected with the second telescopic oil cylinder.
3. The sweeper of claim 2, wherein:
the sweeper further comprises a first lifting oil cylinder and a second lifting oil cylinder, the first lifting oil cylinder is connected with and drives the first swing arm to lift, the second lifting oil cylinder is connected with and drives the second swing arm to lift, and the sucker lifting oil cylinder is connected with the first lifting oil cylinder in parallel and connected with the output end of the first three-position four-way reversing valve.
4. The sweeper of claim 3, wherein:
and a hydraulic lock is connected between the output end of the first three-position four-way reversing valve and the sucker lifting oil cylinder.
5. The sweeper of claim 2, wherein:
the first hydraulic motor and the second hydraulic motor are connected in series.
6. A sweeper truck according to any one of claims 1 to 5, characterized in that:
the sweeper further comprises a steering driving device and a diverter valve, wherein a diverter oil port of the diverter valve is connected with the steering driving device, and other system oil ports of the diverter valve are connected with an oil inlet of the first three-position four-way reversing valve.
7. The sweeper of claim 6, wherein:
the sweeper further comprises a garbage can, a garbage dumping oil cylinder and a fifth three-position four-way reversing valve, wherein the fifth three-position four-way reversing valve is an M-shaped reversing valve, the garbage dumping oil cylinder is connected with the garbage can and drives the garbage can to rotate, and the garbage dumping oil cylinder is connected with the output end of the fifth three-position four-way reversing valve;
an oil inlet of the fifth three-position four-way reversing valve is connected with an oil port of a diverter of the flow divider valve;
and the output end of the fifth three-position four-way reversing valve is connected with the garbage dumping oil cylinder.
8. The sweeper of claim 7, wherein:
the sweeper further comprises a flip oil cylinder and a sixth three-position four-way reversing valve, wherein the sixth three-position four-way reversing valve is an M-shaped reversing valve, the flip oil cylinder is connected with the cover body of the dustbin and drives the cover body to rotate, and the flip oil cylinder is connected with the output end of the sixth three-position four-way reversing valve;
an oil inlet of the sixth three-position four-way reversing valve is connected with an oil port of a diverter of the flow divider valve;
and an oil return port of the sixth three-position four-way reversing valve is connected with an oil inlet of the fifth three-position four-way reversing valve.
9. The sweeper of claim 6, wherein:
the sweeper further comprises an oil tank and a third overflow valve, wherein the third overflow valve is connected between the oil tank and other system oil ports of the flow divider valve.
10. The sweeper of claim 6, wherein:
the sweeper further comprises an oil tank and a fourth overflow valve, wherein the fourth overflow valve is connected between the oil tank and an oil return opening of the flow divider valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921747835.8U CN211498664U (en) | 2019-10-16 | 2019-10-16 | Road sweeper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921747835.8U CN211498664U (en) | 2019-10-16 | 2019-10-16 | Road sweeper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211498664U true CN211498664U (en) | 2020-09-15 |
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ID=72406797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921747835.8U Withdrawn - After Issue CN211498664U (en) | 2019-10-16 | 2019-10-16 | Road sweeper |
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| Country | Link |
|---|---|
| CN (1) | CN211498664U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110725255A (en) * | 2019-10-16 | 2020-01-24 | 珠海亿华电动车辆有限公司 | Road sweeper |
-
2019
- 2019-10-16 CN CN201921747835.8U patent/CN211498664U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110725255A (en) * | 2019-10-16 | 2020-01-24 | 珠海亿华电动车辆有限公司 | Road sweeper |
| CN110725255B (en) * | 2019-10-16 | 2024-08-16 | 珠海亿华电动车辆有限公司 | Sweeping vehicle |
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