CN202247754U - Sweeper driving system of road cleaning vehicle and road cleaning vehicle - Google Patents
Sweeper driving system of road cleaning vehicle and road cleaning vehicle Download PDFInfo
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- CN202247754U CN202247754U CN2011204125421U CN201120412542U CN202247754U CN 202247754 U CN202247754 U CN 202247754U CN 2011204125421 U CN2011204125421 U CN 2011204125421U CN 201120412542 U CN201120412542 U CN 201120412542U CN 202247754 U CN202247754 U CN 202247754U
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- 238000004140 cleaning Methods 0.000 title claims abstract description 147
- 241001417527 Pempheridae Species 0.000 title abstract 4
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 34
- 239000003921 oil Substances 0.000 claims abstract description 29
- 239000002828 fuel tank Substances 0.000 claims description 31
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000010408 sweeping Methods 0.000 abstract description 6
- 230000009183 running Effects 0.000 abstract description 3
- 230000001105 regulatory effect Effects 0.000 description 15
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 238000005299 abrasion Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Cleaning In General (AREA)
Abstract
A sweeper drive system and a road cleaning vehicle including the same, the sweeper drive system comprising: an oil tank for storing hydraulic oil; the hydraulic motor is used for driving a sweeping brush of the road cleaning vehicle to rotate for sweeping operation; the hydraulic pump is communicated with the oil tank and is connected with an oil inlet of the hydraulic motor, and an oil outlet of the hydraulic motor is communicated with the oil tank through an oil return path; the sweeper drive system further comprises: an oil inlet of the electric control flow control valve is communicated with the oil inlet path, and an oil outlet of the electric control flow control valve is communicated with the oil return path; and the controller is electrically connected with the electric control flow control valve. According to the technical scheme, the relation can be established between the rotating speed and the running speed of the sweeping brush of the road cleaning vehicle, and the sweeping operation can be efficiently carried out according to the running state of the road cleaning vehicle.
Description
Technical field
The utility model relates to road cleaning cart field, more particularly, relates to a kind of brush drive unit and road cleaning cart of road cleaning cart.
Background technology
At present, in vast rural area, city, the road cleaning cart is widely used in the road-cleaning operation.Existing road cleaning cart generally includes vehicle body and the entrained clearing apparatus of vehicle body, and this clearing apparatus can comprise the brush that is driven by the brush drive system, can also comprise water sprinkler etc.When the road cleaning cart carried out the road-cleaning operation, the road cleaning cart went on the road that will clean, and the brush of clearing apparatus is simultaneously rotated under the driving of fluid power system, so that road is cleaned.
Fig. 1 to Fig. 3 representes the hydraulic pressure brush drive system that three kinds of road cleaning cart are traditional respectively, below respectively to the explanation that makes an explanation of these three kinds of traditional fluid power systems.
Hydraulic pressure brush drive system shown in Figure 1 comprises: fuel tank 10, (a plurality of) hydraulic motor 11 that is used to drive the brush rotation, the bypass throttling arrangements for speed regulation 14 that are connected hydraulic pump 12 and the control valve 13 between fuel tank 10 and the hydraulic motor 11 and are used for speed governing, these bypass throttling arrangements for speed regulation 14 are arranged between in-line and the oil return line and comprise three position four-way directional control valve 141 and respectively two actuator ports of this three position four-way directional control valve 141 are connected in two one- way throttle valves 142 and 143 of oil return line.
When carrying out cleaning work, hydraulic pump 12 operations are drawn hydraulic oil from fuel tank 10; And pressure hydraulic oil is transported to hydraulic motor 11 through control valve 13; Drive hydraulic motor 11 operations, hydraulic motor 11 drives the brush rotation, and the hydraulic oil of process hydraulic motor 11 flows back to fuel tank 10 again.Utilize above-mentioned bypass throttling arrangements for speed regulation 14, can realize adjusting the rotating speed of hydraulic motor 11.Specifically, when three position four-way directional control valve 141 was in meta shown in Figure 1, the hydraulic oil that hydraulic pump 12 is carried flowed to hydraulic motor 11 all, thereby made hydraulic motor 11 obtain the highest rotating speed; When three position four-way directional control valve 141 is in position, a left side shown in Figure 1 or right position; Then make the part of the hydraulic oil of hydraulic pump 12 conveyings flow back to fuel tank 10 with corresponding one-way throttle valve, thereby make hydraulic motor 11 obtain low relatively rotating speed through this three position four-way directional control valve 141.
Hydraulic pressure brush drive system shown in Figure 2 comprises: fuel tank 10, (a plurality of) hydraulic motor 11 that is used to drive the brush rotation, the entrance throttle governing circuit device 15 that is connected hydraulic pump 12 and the control valve 13 between fuel tank 10 and the hydraulic motor 11 and is used for speed governing, this entrance throttle governing circuit device 15 can be choke valve.
When carrying out cleaning work, hydraulic pump 12 operations are drawn hydraulic oil from fuel tank 10; And pressure hydraulic oil is transported to hydraulic motor 11 through control valve 13; Drive hydraulic motor 11 operations, hydraulic motor 11 drives the brush rotation, and the hydraulic oil of process hydraulic motor 11 flows back to fuel tank 10 again.Utilize above-mentioned entrance throttle governing circuit device 15, can realize adjusting the rotating speed of hydraulic motor 11.Specifically, the size of the flow area through regulating entrance throttle governing circuit device 15 can realize the flow of the hydraulic oil that flows to hydraulic motor 11 regulated the control and then the rotating speed of regulator solution pressure motor 11.
Hydraulic pressure brush drive system shown in Figure 3 comprises: fuel tank 10, (a plurality of) hydraulic motor 11 that is used to drive the brush rotation, the meter out arrangements for speed regulation 16 that are connected hydraulic pump 12 and the control valve 13 between fuel tank 10 and the hydraulic motor 11 and are used for speed governing, these meter out arrangements for speed regulation 16 can be choke valve.
When carrying out cleaning work, hydraulic pump 12 operations are drawn hydraulic oil from fuel tank 10; And pressure hydraulic oil is transported to hydraulic motor 11 through control valve 13; Drive hydraulic motor 11 rotations, hydraulic motor 11 drives the brush rotation, and the hydraulic oil of process hydraulic motor 11 flows back to fuel tank 10 again.Utilize above-mentioned meter out arrangements for speed regulation 16, can realize adjusting the rotating speed of hydraulic motor 11.Specifically, the size of the flow area through regulating meter out arrangements for speed regulation 16, thus can realize the flow of the hydraulic oil that flows to hydraulic motor 11 regulated the control and then the rotating speed of regulator solution pressure motor 11.
Through hydraulic motor 11 is carried out speed governing, thus the velocity of rotation of regulating brush, so that what of the quantity of refuse of cleaning work velocity adaptive on the street that will clean of brush.Yet, in traditional hydraulic pressure brush drive system of road cleaning cart, mostly take mode manually to carry out to the speed governing of hydraulic motor 11, and the major defect of this mode of speed regulation manually is:
Because the cab space of road cleaning cart is very narrow; Therefore the operating means of artificial speed governing (like regulating handle etc.) is installed in the driver's cabin outside usually; Before carrying out the road-cleaning operation; At first operating means is set at the position of reservation, thereby makes the rotating speed of brush be in predetermined level, and then drive to and carry out cleaning work on the road to be cleaned; The brush rotating speed can not arbitrarily be regulated (bypass throttling speed-regulating scheme as shown in Figure 1 continuously in the cleaning process of road cleaning cart; Can only realize high, medium and low third gear speed governing), or be not easy to adjusting (entrance throttle governing circuit scheme and meter out speed-regulating scheme as shown in Figures 2 and 3).Therefore, no matter the road cleaning cart is with which kind of speed operation, and the brush speed of road cleaning cart is difficult to carry out conversion, or remains unchanged basically.
In other words; The major defect of traditional hydraulic pressure brush drive system of road cleaning cart is: the rotating speed of the brush of clearing apparatus can't with the travel speed of road cleaning cart set up related, thereby can not carry out cleaning work efficiently according to the transport condition of road cleaning cart.Influence operation quality or cause brush brooming quick abrasion, increase use cost.
Therefore, how according to the transport condition of road cleaning cart and carry out cleaning work efficiently and become this area technical issues that need to address.
The utility model content
The purpose of the utility model provides a kind of technical scheme, utilizes this technical scheme can be according to the transport condition of road cleaning cart, to realize cleaning work efficiently.
To achieve these goals, the utility model provides a kind of brush drive system of road cleaning cart, and this brush drive system comprises: the fuel tank that is used for stores hydraulic pressure oil; The hydraulic motor of cleaning work is carried out in the brush that is used to drive said road cleaning cart; Hydraulic pump, this hydraulic pump is communicated with said fuel tank and is connected with the oil-in of said hydraulic motor through in-line, and the oil-out of said hydraulic motor is communicated with said fuel tank through oil return line; Wherein, said brush drive system also comprises: automatically controlled flow control valve, and the oil-in of this automatically controlled flow control valve is communicated in said in-line, and the oil-out of said automatically controlled flow control valve is communicated in said oil return line; And controller, this controller is electrically connected with said automatically controlled flow control valve, and the travel speed V when being used for carrying out cleaning work according to said road cleaning cart regulates the flow O of the hydraulic oil of the said automatically controlled flow control valve of flowing through
2
Preferably, said controller is electrically connected with the control unit for vehicle of said road cleaning cart, is used for obtaining from the control unit for vehicle of said road cleaning cart the signal of telecommunication of the travel speed V of the said road cleaning cart of expression when carrying out cleaning work; Perhaps; Said brush drive system also comprises speed detector; This speed detector is arranged on the said road cleaning cart; Travel speed V when being used to detect this road cleaning cart and carrying out cleaning work, said controller is electrically connected with said speed detector, is used for the signal of telecommunication of the travel speed V when this speed detector obtains the said road cleaning cart of expression and carries out cleaning work.
Preferably; Said brush drive system also comprises automatically controlled directional control valve; The oil-in of said hydraulic motor and oil-out are communicated in said in-line and oil return line through this automatically controlled directional control valve respectively; Said controller is electrically connected with said automatically controlled directional control valve, is used to control said automatically controlled directional control valve and between on-state and off-state, changes.
Preferably, the oil-out of said hydraulic motor also directly is communicated with said fuel tank.
Preferably, said brush drive system also comprises overflow valve, and this overflow valve (parallelly connected with said automatically controlled flow control valve) is connected between said in-line and the oil return line.
In addition; The utility model also provides a kind of road cleaning cart, and this road cleaning cart comprises vehicle body and the entrained clearing apparatus of this vehicle body, and this clearing apparatus comprises the brush that is driven by the brush drive system; Wherein, Said brush drive system is the above-mentioned brush drive system that the utility model provided, and the hydraulic motor of this brush drive system and said brush are in transmission connection, and rotates with the brush that drives said clearing apparatus.
Through technique scheme, can between the operation travel speed of the brush rotating speed of road cleaning cart and road cleaning cart, set up related, thereby can carry out cleaning work efficiently according to the operation transport condition of road cleaning cart.
Other feature and advantage of the utility model will partly specify in the specific embodiment subsequently.
Description of drawings
Accompanying drawing is the further understanding that is used to provide the utility model, and constitutes the part of manual, is used to explain the utility model with the following specific embodiment, but does not constitute the restriction to the utility model.In the accompanying drawings:
Fig. 1 to Fig. 3 is respectively the sketch map of the traditional brush drive system of three kinds of road cleaning cart; With
Fig. 4 is the sketch map according to a kind of embodiment of the brush drive system of the road cleaning cart of the utility model.
The specific embodiment
Be elaborated below in conjunction with the specific embodiment of accompanying drawing to the utility model.Should be understood that the specific embodiment described herein only is used for explanation and explains the utility model, is not limited to the utility model.
Describe in detail below with reference to the specific embodiment of accompanying drawing the utility model.As shown in Figure 4, the brush drive system that is used for the road cleaning cart that the utility model provided comprises: the fuel tank 10 that is used for stores hydraulic pressure oil; The hydraulic motor 11 of cleaning work is carried out in (clearing apparatus) brush that is used to drive said road cleaning cart; Hydraulic pump 12, this hydraulic pump 12 is communicated with said fuel tank 10, and is connected with the oil-in of said hydraulic motor 11 through in-line, and the oil-out of said hydraulic motor 11 is communicated with said fuel tank 10 through oil return line; Wherein, said brush drive system also comprises: automatically controlled flow control valve 30, and the oil-in of this automatically controlled flow control valve 30 is communicated in said in-line, and the oil-out of said automatically controlled flow control valve 30 is communicated in said oil return line; With controller 40, this controller 40 is electrically connected with said automatically controlled flow control valve 30, and the travel speed V when being used for carrying out cleaning work according to said road cleaning cart regulates the flow Q of the hydraulic oil of the said automatically controlled flow control valve 30 of flowing through
2
Above-mentioned fuel tank 10, hydraulic motor 11 and hydraulic pump 12 can be same or similar with fuel tank, hydraulic motor and hydraulic pump in traditional brush drive system of road cleaning cart, and annexation also can be with reference to the annexation of fuel tank, hydraulic motor and hydraulic pump in traditional brush drive system.Therefore, no longer this is described in detail here.In simple terms; To shown in Figure 4, when cleaning work is carried out in the operation of brush drive system, hydraulic pump 12 will be drawn hydraulic oil and be transported to hydraulic motor 11 through in-line from fuel tank 10 like Fig. 1; Drive hydraulic motor 11 runnings, hydraulic oil is back in the fuel tank 10 through oil return line more then.Brush in the clearing apparatus of hydraulic motor 11 and road cleaning cart is connected, and drives this brush rotation, thereby carries out cleaning work.
Compare with traditional brush drive system of road cleaning cart, the main improvements of the technical scheme of the utility model are on the adjusting control mode to the rotating speed of hydraulic motor 11.Emphatically this is described in detail below.
Compare with traditional brush drive system shown in Figure 1; As shown in Figure 4; In the bypass throttle grverning path of this brush drive system, be provided with automatically controlled flow control valve 30; Promptly the oil-in of this automatically controlled flow control valve 30 is communicated in said in-line, and the oil-out of said automatically controlled flow control valve 30 is communicated in said oil return line, thereby forms the bypass throttling speed control circuit.In order to realize adjusting control to automatically controlled flow control valve 30; Also be provided with controller 40; This controller 40 is electrically connected with said automatically controlled flow control valve 30, and the travel speed V when being used for carrying out cleaning work according to said road cleaning cart regulates the flow Q of the hydraulic oil of the said automatically controlled flow control valve 30 of flowing through
2
As shown in Figure 4, the total flow of the hydraulic oil of hydraulic pump 12 pumpings is Q, and the part of hydraulic oil flows to hydraulic motor 11 then, move to drive hydraulic motor 11, and another part hydraulic oil flows back to fuel tank 10 through above-mentioned bypass tool circuit.Wherein, the flow of the hydraulic oil of the hydraulic motor 11 of flowing through is Q1, and the flow of the hydraulic oil of the bypass tool circuit of flowing through is Q2, Q=Q1+Q2.Utilize controller 40, through regulating the flow area of automatically controlled flow control valve 30, thereby can regulate the flow Q2 of the hydraulic oil of the bypass tool circuit of flowing through, and then the size of regulating above-mentioned Q1, to realize adjusting to the rotating speed of hydraulic motor 11.
In traditional brush drive system; As stated; The brush rotating speed mostly is manually to be regulated by human pilot; Before carrying out cleaning work with the speed setting of hydraulic motor 11 at predeterminated level, and in the cleaning work process, the brush rotating speed of clearing apparatus can not optionally be regulated (regulating as carrying out third gear at most) or be not easy to regulate.Therefore, no matter treat on the road quantity of refuse what, in case the road cleaning cart has started cleaning works, then brush always can be carried out cleaning work according to certain rotating speed.Thereby the rotating speed of the brush of road cleaning cart can not be complementary with the travel speed of road cleaning cart, to realize high efficiency cleaning work.For example,,, be easy to cause brush brooming quick abrasion, increase use cost because the brush of clearing apparatus still is rotated with higher relatively speed for the lower workplace of the travel speed of road cleaning cart.
But for the technical scheme of the utility model, the travel speed V when controller 40 can carry out cleaning work according to said road cleaning cart regulates the flow Q of the hydraulic oil of the said automatically controlled flow control valve 30 of flowing through
2, the operation rotary speed that the difference of the travel speed V in the time of therefore can carrying out cleaning work according to said road cleaning cart is regulated the brush of clearing apparatus.For example, the travel speed V that can realize the road cleaning cart hour also correspondingly diminishes the velocity of rotation of brush, with reduce wear (will describe hereinafter about this point); Perhaps, in the time of can realizing that also the travel speed V of road cleaning cart is higher, improve the rotary speed of brush, to guarantee the cleaning effect.In a word, in the technical scheme of the utility model, the travel speed V when controller 40 carries out cleaning work according to said road cleaning cart regulates the flow Q of the hydraulic oil of the said automatically controlled flow control valve 30 of flowing through
2Thereby the rotating speed of the brush in the clearing apparatus of travel speed V when the road cleaning cart is carried out cleaning work and road cleaning cart associates; Thereby according to the transport condition of road cleaning cart and carry out cleaning work efficiently; Can overcome the problems referred to above that exist in traditional technical scheme, to realize the purpose of the utility model.
Above-mentioned automatically controlled flow control valve 30 can be for the various traditional valve elements that can realize flow-control, like various automatically controlled choke valves (operated proportional flow control valve or flow speed control valve).Above-mentioned controller 40 can be single-chip microcomputer, computer, PLC etc.The particular type and the parameter of automatically controlled flow control valve 30 and controller 40 can be selected according to concrete application operating mode to be suitable for.
As stated; Preferably; Have related between the travel speed V when value size U of said control signal carries out cleaning work with said road cleaning cart; Thereby when the travel speed V of road cleaning cart hour, the velocity of rotation of said brush is also correspondingly diminished, with the degree of reducing wear.Relation between travel speed V when specifically, the value of said control signal size U and said road cleaning cart carry out cleaning work can for:
Wherein, k
2Be the factor of proportionality between the travel speed V of the value of said control signal size U and said road cleaning cart, this k
2The corresponding control model value U of automatically controlled flow control valve in the time of can be according to the highest and minimum operating speed of said brush
Max, U
MinAnd the maximum travel speed of road cleaning cart and the minimum rate signal V that speed detector detects when sailing speed
Max, V=0 calculate to confirm; V
MaxMaximum travel speed when carrying out cleaning work for the road cleaning cart; U
MaxMaximum value for the value of said control signal size U; U
MinMinimum value for the value of said control signal size U.
Utilize this technical scheme can avoid said brush brooming quick abrasion, change frequently, reduce use cost, improve cleaning work efficient.And the reentrainment of dust that can also avoid causing because of brush rotating speed height pollutes.
Specifically, when the travel speed V of road cleaning cart is zero, when promptly this road cleaning cart stops operation; Then the value of said control signal size U gets maximum value, thereby makes Q2 maximum, and minimum (even the Q2=Q of Q1; Q1 is zero), the rotating speed of brush is slow perhaps not to rotate.In this case, can avoid the unnecessary wearing and tearing of brooming, reduce airborne dust.
Along with the increase of the travel speed V of road cleaning cart, the value U of said control signal reduces, and Q2 reduces, and Q1 increases, thereby the rotating speed of the brush of clearing apparatus is correspondingly increased thereupon.In this case,, be to guarantee sweeping efficiency and effect along with the operation travel speed V of road cleaning cart increases, sweep the dish rotating speed thereupon ratio accelerate, can between sweeping efficiency and brooming wearing and tearing, obtain the effect of desirable balance.When the travel speed V of road cleaning cart gets maximum value V
MaxThe time, it is maximum that the rotating speed of brush also can reach.
The rotating speed of brush depends on the rotation speed n of hydraulic motor, and the commentaries on classics degree n of hydraulic motor depends on the flow Q of the hydraulic oil that flows into hydraulic motor
1
Rotation speed n=the Q of hydraulic motor
1/ q, wherein q is the discharge capacity of hydraulic motor.
Flow into the flow Q of the hydraulic oil of hydraulic motor
1=Q-Q
2
Thereby the relation between the rotation speed n of hydraulic motor and the Vehicle Speed V is:
Because k
1, k
1, Q, q, U
MaxBe constant, order
Then, the rotation speed n of hydraulic motor does
Therefore, can know that when operating personnel started vehicle and carry out cleaning operation, the rotating speed of brush followed that the speed of a motor vehicle is linear to be increased, when reaching V through above-mentioned analysis
MaxThe time, the rotating speed of brush reaches maximum n
Max, and keep this speed.Simultaneously, along with the reduction of Vehicle Speed, the rotating speed of brush is linear thereupon to descend.
Travel speed V when said road cleaning cart carries out cleaning work can obtain in several ways.For example, said controller 40 can be electrically connected with the control unit for vehicle of said road cleaning cart, is used for obtaining from the control unit for vehicle of said road cleaning cart the signal of telecommunication of the travel speed V of the said road cleaning cart of expression when carrying out cleaning work.That is to say the information of the travel speed V when controller 40 can directly carry out cleaning work through control unit for vehicle (ECU) acquisition of road cleaning cart about the road cleaning cart.The relevant information of the travel speed V that this mode need not be provided with additional parts or device on the road cleaning cart when obtaining the road cleaning cart and carrying out cleaning work.
Perhaps; Said brush drive system also comprises speed detector 50; This speed detector 50 is arranged on the said road cleaning cart; Travel speed V when being used to detect this road cleaning cart and carrying out cleaning work, said controller 40 is electrically connected with said speed detector 50, is used for the signal of telecommunication N2 of the travel speed V when this speed detector 50 obtains the said road cleaning cart of expression and carries out cleaning work.That is to say, on the road cleaning cart, be provided for detecting the speed detector 50 of its travel speed, and the signal of telecommunication N2 of the expression road cleaning cart travel speed V that this speed detector 50 is obtained sends to controller 40.In this mode, speed detector need be set separately on the road cleaning cart
Preferably; Said brush drive system also comprises automatically controlled directional control valve 17; The oil-in of said hydraulic motor 11 and oil-out are communicated in said in-line and oil return line through this automatically controlled directional control valve 17 respectively; Said controller 40 is electrically connected with said automatically controlled directional control valve 17, is used to control said automatically controlled directional control valve 17 and between on-state and off-state, changes.Automatically controlled directional control valve 17 is under the control of controller 40, as the switch valve of hydraulic motor 11.Certainly, also can adopt the direction valve of manual manipulation.
Preferably, as shown in Figure 4, the oil-out of said hydraulic motor 11 also directly is communicated with said fuel tank 10, thereby the pressure of the hydraulic oil of hydraulic motor 11 oil-outs remains on reduced levels, so that hydraulic motor is protected.
Preferably, as shown in Figure 4, said brush drive system also comprises overflow valve 18, and this overflow valve 18 (parallelly connected with said automatically controlled flow control valve 30) is connected between said in-line and the oil return line.
More than the brush drive system of the road cleaning cart that the utility model provided is described in detail; In addition; The utility model also provides a kind of road cleaning cart, and this road cleaning cart comprises vehicle body and the entrained clearing apparatus of this vehicle body, and this clearing apparatus comprises the brush that is driven by the brush drive system; Wherein, Said brush drive system is the above-mentioned brush drive system that the utility model provided, and the hydraulic motor 11 and the said brush of this brush drive system are in transmission connection, to drive the brush rotation.
Can know through above description; It is related to utilize the technical scheme of the utility model can the rotary speed of the brush of the clearing apparatus of road cleaning cart and the travel speed of road cleaning cart be set up, thereby can carry out cleaning work efficiently according to the transport condition of road cleaning cart.
More than combine accompanying drawing to describe the preferred implementation of the utility model in detail; But; The utility model is not limited to the detail in the above-mentioned embodiment; In the technical conceive scope of the utility model, can carry out multiple simple variant to the technical scheme of the utility model, these simple variant all belong to the protection domain of the utility model.Need to prove that in addition each the concrete technical characterictic described in the above-mentioned specific embodiment under reconcilable situation, can make up through any suitable manner, and be not limited to the qualification of the adduction relationship of claims each item claim.
In addition, also can carry out combination in any between the various embodiment of the utility model, as long as its thought without prejudice to the utility model, it should be regarded as content disclosed in the utility model equally.
Claims (6)
1. the brush drive system of road cleaning cart, this brush drive system comprises:
The fuel tank (10) that is used for stores hydraulic pressure oil;
The hydraulic motor (11) of cleaning work is carried out in the brush that is used to drive said road cleaning cart;
Hydraulic pump (12), this hydraulic pump (12) is communicated with said fuel tank (10) and is connected through the oil-in of in-line with said hydraulic motor (11), and the oil-out of said hydraulic motor (11) is communicated with said fuel tank (10) through oil return line;
It is characterized in that said brush drive system also comprises:
Automatically controlled flow control valve (30), the oil-in of this automatically controlled flow control valve (30) is communicated in said in-line, and the oil-out of said automatically controlled flow control valve (30) is communicated in said oil return line; With
Controller (40), this controller (40) is electrically connected with said automatically controlled flow control valve (30), and the travel speed V when being used for carrying out cleaning work according to said road cleaning cart regulates the flow Q of the hydraulic oil of the said automatically controlled flow control valve (30) of flowing through
2
2. brush drive system according to claim 1, wherein, said controller (40) is electrically connected with the control unit for vehicle of said road cleaning cart; Perhaps, said brush drive system also comprises speed detector (50), and this speed detector (50) is arranged on the said road cleaning cart, and said controller (40) is electrically connected with said speed detector (50).
3. brush drive system according to claim 1 and 2; Wherein, Said brush drive system also comprises automatically controlled directional control valve (17); The oil-in of said hydraulic motor (11) and oil-out are communicated in said in-line and oil return line through this automatically controlled directional control valve (17) respectively, and said controller (40) is electrically connected with said automatically controlled directional control valve (17).
4. brush drive system according to claim 3, wherein, the oil-out of said hydraulic motor (11) also directly is communicated with said fuel tank (10).
5. brush drive system according to claim 1, wherein, said brush drive system also comprises overflow valve (18), this overflow valve (18) and said automatically controlled flow control valve (30) are connected in parallel between said in-line and the oil return line.
6. road cleaning cart; This road cleaning cart comprises vehicle body and the entrained clearing apparatus of this vehicle body; This clearing apparatus comprises the brush that is driven by the brush drive system; It is characterized in that said brush drive system is any described brush drive system among the claim 1-5, the hydraulic motor of this brush drive system (11) is in transmission connection with said brush.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204125421U CN202247754U (en) | 2011-10-26 | 2011-10-26 | Sweeper driving system of road cleaning vehicle and road cleaning vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204125421U CN202247754U (en) | 2011-10-26 | 2011-10-26 | Sweeper driving system of road cleaning vehicle and road cleaning vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202247754U true CN202247754U (en) | 2012-05-30 |
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ID=46109016
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204125421U Expired - Lifetime CN202247754U (en) | 2011-10-26 | 2011-10-26 | Sweeper driving system of road cleaning vehicle and road cleaning vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202247754U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102505652A (en) * | 2011-10-26 | 2012-06-20 | 中联重科股份有限公司 | Sweeper driving system of road cleaning vehicle and road cleaning vehicle |
-
2011
- 2011-10-26 CN CN2011204125421U patent/CN202247754U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102505652A (en) * | 2011-10-26 | 2012-06-20 | 中联重科股份有限公司 | Sweeper driving system of road cleaning vehicle and road cleaning vehicle |
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