CN220183914U

CN220183914U - Single-shot washing and sweeping vehicle

Info

Publication number: CN220183914U
Application number: CN202321478524.2U
Authority: CN
Inventors: 陈付强; 薛雷; 苏舜华; 李石; 綦宗岩; 杨红恩; 潘鹏山
Original assignee: Weichai Power Co Ltd
Current assignee: Weichai Power Co Ltd
Priority date: 2023-06-09
Filing date: 2023-06-09
Publication date: 2023-12-15
Anticipated expiration: 2033-06-09

Abstract

The utility model relates to the technical field of cleaning vehicles, in particular to a single-shot cleaning and sweeping vehicle. The single-shot washing and sweeping vehicle comprises a flywheel, a crankshaft timing gear, a transmission gear set, a flywheel shell, a hydraulic device and a washing and sweeping device. The crankshaft timing gear is coaxially connected with the flywheel, part of gears in the transmission gear set are in transmission connection with the crankshaft timing gear, the crankshaft timing gear is accommodated in the flywheel housing, a force taking port is formed in the flywheel housing at a position corresponding to the transmission gear set, the hydraulic device penetrates through the force taking port and is in transmission connection with the transmission gear set, and the washing and sweeping device is in transmission connection with the output end of the hydraulic device. The crankshaft timing gear of the embodiment transmits power to the transmission gear set, the transmission gear set transmits power to the hydraulic device, and the hydraulic device converts kinetic energy into mechanical energy to drive the washing and sweeping device to move. Compared with a new energy washing and sweeping vehicle, the method and the device avoid the need of cooperative work of a complex control system and a plurality of electric control units, and therefore the failure rate is reduced.

Description

Single-shot washing and sweeping vehicle

Technical Field

The utility model relates to the technical field of cleaning vehicles, in particular to a single-shot cleaning and sweeping vehicle.

Background

In the process of cleaning roads and public places, a washing and sweeping vehicle is a widely used device. However, conventional scrubber designs often have problems, for example, they may generate excessive noise, consume large amounts of fuel, and their scrubber capacity may be affected by the space constraints inside the scrubber. These problems have a negative impact on the environment and also reduce the efficiency of the washing and sweeping.

In particular, conventional washing and sweeping vehicles are typically designed in a dual engine mode, where one engine is used to drive the vehicle and the other engine is used to drive the washing and sweeping device. While this design may ensure independent operation of the wash and sweep apparatus, it also presents problems. First, the dual engine design results in a higher overall noise level for the sweeper. Second, the two-engine mode means that both engines are running simultaneously, which requires a large fuel consumption. Finally, since a second engine is required to be installed, the loading space of the washing and sweeping vehicle is occupied, which limits the capacity of the clean water tank and the sewage tank, thereby affecting the washing and sweeping efficiency.

In order to solve the above problems, there are sweeper vehicles powered by new energy (such as power battery) on the market, however, the control system of the sweeper vehicle powered by new energy is complex, and a plurality of electric control units are required to work cooperatively, which not only increases the failure rate, but also increases the cost of the whole vehicle.

Disclosure of Invention

The utility model aims to at least solve the problem that a transmission and control system of a single-shot washing and sweeping vehicle is complex. The aim is achieved by the following technical scheme:

the first aspect of the utility model provides a single-shot washing and sweeping vehicle, comprising:

a flywheel;

the crankshaft timing gear is coaxially connected with the flywheel;

the transmission gear set is characterized in that part of gears in the transmission gear set are in transmission connection with the crankshaft timing gears;

the crankshaft timing gear is accommodated in the flywheel shell, and a force taking port is formed in the flywheel shell at a position corresponding to the transmission gear set;

the hydraulic device passes through the force taking port and is in transmission connection with the transmission gear set;

and the washing and sweeping device is in transmission connection with the power output end of the hydraulic device.

According to the single-shot washing and sweeping vehicle, the crankshaft timing gear transmits power to the transmission gear set, the transmission gear set transmits power to the hydraulic device, and the hydraulic device converts kinetic energy into mechanical energy to drive the washing and sweeping device to move. Compared with a double-engine washing and sweeping vehicle, the upper engine is omitted, only one engine is reserved, and the hydraulic device drives the washing and sweeping device to move, so that power is provided for the operation of the washing and sweeping device. In addition, compared with the new energy single-engine washing and sweeping vehicle, the utility model avoids the need of cooperative work of a complex control system and a plurality of electric control units, thereby reducing the failure rate.

In addition, the single-shot washing and sweeping vehicle can also have the following additional technical characteristics:

in some embodiments of the utility model, the drive gear set includes a power take-off gear and an intermediate gear, the hydraulic device includes a first drive shaft drivingly connected to the power take-off gear, the intermediate gear is meshed with the power take-off gear, and the intermediate gear is meshed with the crankshaft timing gear.

In some embodiments of the present utility model, the clutch further comprises a first clutch device, wherein the first clutch device is fixed on the end face of the power take-off gear, and the first clutch device is in transmission connection with the first transmission shaft in a detachable manner.

In some embodiments of the utility model, the hydraulic device comprises a hydraulic motor and a hydraulic pump, the hydraulic pump is in transmission connection with the transmission gear set through the force taking port, and the hydraulic motor is connected with the hydraulic pump through a pipeline.

In some embodiments of the present utility model, the hydraulic motor includes an output shaft, the washing and sweeping device includes a fan driving wheel, a sweeping disc driving wheel, and a water pump driving wheel, and the fan driving wheel, the sweeping disc driving wheel, and the water pump driving wheel are sequentially in transmission connection with the output shaft.

In some embodiments of the present utility model, a second clutch device is fixed on an end surface of the water pump driving wheel, which is close to the sweeping disc driving wheel, and the second clutch device is in transmission connection with the output shaft in a detachable manner.

In some embodiments of the utility model, the washing and sweeping device comprises a top assembly, a fan, a sweeping disc and a water pump, wherein the fan is in transmission connection with the fan driving wheel, the sweeping disc is in transmission connection with the sweeping disc driving wheel, and the water pump is in transmission connection with the water pump driving wheel.

In some embodiments of the utility model, the second clutch device is a tooth clutch.

In some embodiments of the utility model, the hydraulic pump is a variable displacement hydraulic pump.

In some embodiments of the utility model, a second drive shaft is further included, one end of the second drive shaft is in driving connection with the crankshaft timing gear, and the other end of the second drive shaft is in driving connection with the wheel drive shaft.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the utility model. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:

fig. 1 schematically shows a schematic structure of a one-shot washing and sweeping vehicle according to an embodiment of the present utility model;

fig. 2 schematically shows a partial structure diagram of a one-shot washing and sweeping vehicle according to an embodiment of the present utility model;

FIG. 3 is a cross-sectional view taken along the A-A plane of FIG. 2;

fig. 4 schematically shows a schematic structural view of a hydraulic motor and a cleaning device according to an embodiment of the present utility model (the cleaning device shows a partial structure).

The reference numerals are as follows:

100. a single-shot washing and sweeping vehicle; 101. an engine; 102. a second drive shaft;

10. a transmission system; 11. a crankshaft timing gear; 12. a drive gear set; 121. an intermediate gear; 122. a force taking port gear; 13. flywheel casing; 131. a force taking port;

20. a hydraulic device; 21. a hydraulic pump; 211. a first drive shaft; 22. a hydraulic motor; 23. a first clutch device;

30. a washing and sweeping device; 31. a fan driving wheel; 32. a sweeping disc driving wheel; 33. a water pump driving wheel; 34. and a second clutch device.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "includes," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless an order of performance is explicitly stated. It should also be appreciated that additional or alternative steps may be used.

Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.

For ease of description, spatially relative terms, such as "inner," "outer," "lower," "below," "upper," "above," and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below … …" may include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative relationship descriptors used herein interpreted accordingly.

As shown in fig. 1 to 4, according to an embodiment of the present utility model, a one-shot washing and sweeping vehicle 100 is proposed, the one-shot washing and sweeping vehicle 100 including a flywheel, a crankshaft timing gear 11, a transmission gear set 12, a flywheel housing 13, a hydraulic device 20, and a washing and sweeping device 30. Wherein, the crank timing gear 11 is coaxially connected with the flywheel, part of gears in the transmission gear set 12 are in transmission connection with the crank timing gear 11, the crank timing gear 11 is accommodated in the flywheel housing 13, the flywheel housing 13 is provided with a force taking port 131 at a position corresponding to the transmission gear set 12, the hydraulic device 20 is in transmission connection with the transmission gear set 12 through the force taking port 131, and the washing and sweeping device 30 is in transmission connection with a power output end of the hydraulic device 20.

According to the single-shot washing and sweeping vehicle 100 of the embodiment, the crankshaft timing gear 11 transmits power to the transmission gear set 12, the transmission gear set 12 transmits power to the hydraulic device 20, and the hydraulic device 20 converts kinetic energy into mechanical energy to drive the washing and sweeping device 30 to move. Compared with a double-engine washing and sweeping vehicle, the upper engine is omitted, only one engine 101 is reserved, and the hydraulic device 20 drives the washing and sweeping device 30 to move, so that power is provided for the operation of the washing and sweeping device 30. In addition, compared with a new energy washing and sweeping vehicle, the method and the device avoid the need of cooperative work of a complex control system and a plurality of electric control units, and therefore the failure rate is reduced.

It should be understood that the single-shot washing and sweeping vehicle refers to a washing and sweeping vehicle with only one engine 101, and the power of the loading operation and the power required by chassis walking are realized by different distribution of the power of the engine 101.

It should be appreciated that the flywheel, crankshaft timing gear 11, drive gear set 12, and flywheel housing 13 form the drive train 10.

It should be understood that, because the force taking port 131 is disposed above the flywheel housing 13, and the hydraulic device 20 transmits power to the washing and sweeping device 30, and the washing and sweeping device 30 is generally disposed above the engine 101, the force taking port 131 is disposed above the flywheel housing 13, so that the internal structure can be simplified, and the failure rate of the single-shot washing and sweeping vehicle 100 can be reduced.

In some embodiments, the drive gear set 12 includes a power take-off gear 122 and an intermediate gear 121, the hydraulic device 20 includes a first drive shaft 211, the first drive shaft 211 is drivingly connected to the power take-off gear 122, the intermediate gear 121 is meshed with the power take-off gear 122, and the intermediate gear 121 is meshed with the crankshaft timing gear 11. The first transmission shaft 211 and the power take-off gear 122 may be connected in an interference fit, and the power take-off gear 122 drives the first transmission shaft 211 to rotate, provided that when the hydraulic device 20 is an external gear pump, the first transmission shaft 211 is in an interference fit with a driving gear of the hydraulic device 20. The power take-off gear 122 rotates to drive the first transmission shaft 211 to rotate, the first transmission shaft 211 rotates to drive the driving gear to rotate, the driving gear and the driven gear rotate to enable kinetic energy to be converted into hydraulic energy, the hydraulic device 20 can be further provided with an output end, the output end converts the hydraulic energy into mechanical energy, and finally the washing and sweeping device 30 is driven to move.

It can be understood that the single-shot washing and sweeping vehicle 100 sets the power of the engine 101 to two paths of output, wherein one path is that the hydraulic device 20 drives the washing and sweeping device 30, and the other path is that the flywheel is in transmission connection with the wheel driving shaft through the second transmission shaft 102, and the power transmission path sequentially passes through the engine 101, the flywheel, the gearbox, the second transmission shaft 102, the rear axle of the second transmission shaft 102 and the wheel driving shaft. The second transmission shaft 102 is provided with a universal joint, so that the single-shot washing and sweeping vehicle 100 can stably pass through the road slope.

It will be appreciated that the single-shot washing and sweeping vehicle 100 further includes a first clutch device 23, the first clutch device 23 is fixed to an end surface of the power take-off gear 122, and the first clutch device 23 is detachably connected to the first transmission shaft 211. Specifically, the first clutch device 23 includes a clutch housing, a pressure plate, a friction disc, a diaphragm spring, and a clutch pressing fork, where the pressure plate, the friction disc, and the diaphragm spring are fixed on an end surface of the power take-off gear 122 by bolts, one end of the first transmission shaft 211 is disposed in a central shaft hole of the diaphragm spring, and the clutch pressing fork passes through the first transmission shaft 211. The clutch depressing fork is depressed, the diaphragm spring is separated from the first transmission shaft 211, and no kinetic energy is transmitted between the transmission gear set 12 and the first transmission shaft 211. The clutch pressing fork is lifted, the diaphragm spring is meshed with the first transmission shaft 211, and the transmission gear set 12 drives the first transmission shaft 211 to rotate. In addition, the clutch depressing fork can be connected with a gear through the ECU, and when in neutral gear, the clutch depressing fork is depressed, and the force taking port gear 122 is not in transmission connection with the first transmission shaft 211.

In some embodiments, the hydraulic device 20 may include a hydraulic motor 22 and a hydraulic pump 21, the hydraulic pump 21 being drivingly connected to the drive gear set 12 through a power take-off port 131, the hydraulic motor 22 being connected to the hydraulic pump 21 by a conduit. The hydraulic pump 21 may be an external gear pump, an internal gear pump, a vane pump, or an axial plunger pump. Taking an external gear pump as an example, the first transmission shaft 211 drives the driving gear to rotate, so that engine oil flows in the hydraulic pump 21, an oil outlet of the hydraulic pump 21 is communicated with an oil inlet of the hydraulic motor 22 through a pipeline, the engine oil flows from the hydraulic pump 21 to the hydraulic motor 22, and the hydraulic motor 22 converts kinetic energy of the engine oil into mechanical energy.

Specifically, a reversing valve may be further provided on a pipe through which the hydraulic motor 22 and the hydraulic pump 21 communicate, so that the hydraulic motor 22 can be rotated forward or backward.

It will be appreciated that the hydraulic motor 22 has an output shaft, the washing and sweeping device 30 includes a fan drive wheel 31, a sweeping disc drive wheel 32 and a water pump drive wheel 33, and the fan drive wheel 31, the sweeping disc drive wheel 32 and the water pump drive wheel 33 are in driving connection with the output shaft in sequence. That is, the fan driving wheel 31 is close to the body of the hydraulic motor 22, and the pan driving wheel 32 and the water pump driving wheel 33 are sequentially provided in a direction away from the hydraulic motor 22.

Specifically, the washing and sweeping device 30 further comprises a fan, a sweeping disc and a water pump, the fan is in transmission connection with a fan driving wheel 31, the sweeping disc is in transmission connection with a sweeping disc driving wheel 32, and the water pump is in transmission connection with a water pump driving wheel 33. The fan driving wheel 31 is connected with the fan in a driving way to drive the fan to rotate so as to blow or suck dust to the ground. The sweep drive wheel 32 is in driving connection with a gear set in the sweep for controlling the sweep to rotate. The water pump driving wheel 33 is connected with the water pump in a transmission way and is used for controlling the water pump to spray water.

Specifically, a second clutch device 34 is fixed on the end surface of the water pump driving wheel 33, which is close to the sweeping disc driving wheel 32, and the second clutch device 34 is in transmission connection with the output shaft in a detachable manner.

In particular, the second clutch device 34 may be a tooth clutch, for example, a pneumatic tooth clutch. One part of the pneumatic tooth clutch is in interference fit with the end part of the output shaft, and the other part of the pneumatic tooth clutch is fixedly connected with the driving wheel 33 of the water pump through bolts. When the two parts of the pneumatic tooth clutch are separated, the output shaft does not drive the water pump driving wheel 33 to rotate. When the two parts of the pneumatic tooth clutch are engaged, the output shaft drives the water pump driving wheel 33 to rotate.

It is understood that the hydraulic pump 21 is a variable displacement hydraulic pump 21, and the variable displacement hydraulic pump 21 can control output power to ensure the working requirements of the washing and sweeping device 30 in different scenes.

The single-shot washing and sweeping vehicle 100 provided above has the following technical effects:

1. noise and fuel consumption reduction: because the design cancels the upper engine and only one engine 101 is reserved, the noise and the oil consumption of the whole vehicle are obviously reduced. This single engine mode reduces noise and fuel consumption, which has a positive impact on both environmental and cost control.

2. The washing and sweeping efficiency is improved: because the upper engine is omitted, the space of the clean water tank and the sewage tank is enlarged, which is helpful for improving the washing and sweeping efficiency of the washing and sweeping vehicle. Meanwhile, the hydraulic device 20 is in transmission connection with the transmission gear set 12 through the power taking port 131, and further provides greater power for the operation of the washing and sweeping device 30.

3. The design is simplified, and the failure rate is reduced: compared with a new energy single-washing and sweeping vehicle, the design avoids the need of a complex control system and a plurality of electric control units to cooperatively work, thereby reducing the failure rate.

4. The cost is reduced: because the design is simpler, the fault rate is lower, so the maintenance cost and the production cost of the whole vehicle can be correspondingly reduced.

5. Space utilization rate is improved: because the crankshaft timing gear 11 is accommodated in the flywheel housing 13, and the flywheel housing 13 is provided with the power take-off port 131 at the position corresponding to the transmission gear set 12, the design is more compact, and the space utilization rate is improved.

According to the single-shot washing and sweeping vehicle 100, the working method of the single-shot washing and sweeping vehicle 100 can be as follows:

when the single-shot washing and sweeping vehicle 100 is in transition, the single-shot washing and sweeping vehicle 100 does not select a mode, the displacement of the hydraulic pump 21 is zero, and the hydraulic motor 22 does not work, so that all parts of the cleaning device do not work;

when the washing and sweeping mode is selected, the displacement of the hydraulic pump 21 is opened to the initial opening, the motor drives the fan and the water pump to work according to the preset rotating speed, when the vehicle runs in a city, the rotating speed of the engine 101 changes, and the hydraulic pump 21 ensures that the working rotating speeds of the fan and the water pump meet the requirement by adjusting the displacement. Meanwhile, the single-shot washing and sweeping vehicle 100 increases judgment on detection of a vehicle clutch signal and a gear signal, and when the clutch is stepped down or the vehicle gear is neutral, the displacement of the hydraulic pump 21 is adjusted to be zero, so that energy loss is reduced.

When the dry-sweep mode is selected, the control of the hydraulic device 20 by the whole vehicle is consistent with the wash-sweep mode, only the tooth clutch is disconnected, and the water pump driving wheel 33 does not work.

It will be appreciated that the entire single-shot wash truck 100 has a controller that is responsible for sending and displaying instructions only.

It can be understood that, to ensure the stability of the single-shot cleaning and sweeping vehicle 100 during operation, the engine 101 needs to be adjusted to a minimum stable rotation speed (specific rotation speed value and time can be calibrated individually according to different vehicle types), when the vehicle is detected to be in an operation state, the rotation speed of the vehicle is controlled to be not lower than a certain set value through a remote throttle, and if the vehicle is stepped on to be in neutral gear, the set rotation speed is released.

Specifically, when the engine 101 is at the working rotation speed, due to different working conditions such as acceleration, climbing, downhill and the like of the vehicle, when the rotation speed of the engine 101 changes, the electric control unit synchronously controls the displacement of the hydraulic pump 21 according to the change of the rotation speed of the engine 101, so that the hydraulic motor 22 keeps constant rotation speed in a fixed interval to realize stable working, and when the rotation speed of the engine 101 does not reach an initial rotation speed value or the vehicle is in a clutch state or a neutral state, the electric control unit controls the displacement of the hydraulic pump 21 to be zero so as to ensure the washing and sweeping effect and simultaneously reduce the fuel consumption of the vehicle.

The working method of the embodiment can improve the automation degree of vehicle operation and reduce the operation difficulty of a driver.

The present utility model is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present utility model are intended to be included in the scope of the present utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.

Claims

1. A single-shot washing and sweeping vehicle, comprising:

a flywheel;

the crankshaft timing gear is coaxially connected with the flywheel;

2. The single-shot washing and sweeping vehicle of claim 1, wherein the transmission gear set comprises a force taking port gear and an intermediate gear, the hydraulic device comprises a first transmission shaft, the first transmission shaft is in transmission connection with the force taking port gear, the intermediate gear is meshed with the force taking port gear, and the intermediate gear is meshed with the crankshaft timing gear.

3. The single-shot washing and sweeping vehicle of claim 2, further comprising a first clutch device fixed to an end face of the power take-off gear, the first clutch device being in driving connection with the first transmission shaft in a detachable manner.

4. The single-shot washing and sweeping vehicle of claim 1, wherein the hydraulic device comprises a hydraulic motor and a hydraulic pump, the hydraulic pump passes through the power take-off port and is in transmission connection with the transmission gear set, and the hydraulic motor is connected with the hydraulic pump through a pipeline.

5. The single-shot washing and sweeping vehicle of claim 4, wherein the hydraulic motor comprises an output shaft, the washing and sweeping device comprises a fan driving wheel, a sweeping disc driving wheel and a water pump driving wheel, and the fan driving wheel, the sweeping disc driving wheel and the water pump driving wheel are sequentially connected with the output shaft in a transmission manner.

6. The single-shot washing and sweeping vehicle of claim 5, wherein a second clutch device is fixed on the end face of the water pump driving wheel, which is close to the sweeping disc driving wheel, and the second clutch device is in transmission connection with the output shaft in a detachable mode.

7. The single-shot washing and sweeping vehicle of claim 6, wherein the washing and sweeping device further comprises a fan, a sweeping disc and a water pump, wherein the fan is in transmission connection with the fan driving wheel, the sweeping disc is in transmission connection with the sweeping disc driving wheel, and the water pump is in transmission connection with the water pump driving wheel.

8. The single-shot washing and sweeping vehicle of claim 6, wherein the second clutch means is a tooth clutch.

9. The single-shot washing and sweeping vehicle of claim 4, wherein the hydraulic pump is a variable displacement hydraulic pump.

10. The single-shot washing and sweeping vehicle of claim 1, further comprising a second transmission shaft, wherein one end of the second transmission shaft is in transmission connection with the flywheel, and the other end of the second transmission shaft is in transmission connection with a wheel drive shaft.