CN106593981A - Sweeping plate lifting hydraulic system, sweeping machine hydraulic system and sweeping machine - Google Patents
Sweeping plate lifting hydraulic system, sweeping machine hydraulic system and sweeping machine Download PDFInfo
- Publication number
- CN106593981A CN106593981A CN201611163267.8A CN201611163267A CN106593981A CN 106593981 A CN106593981 A CN 106593981A CN 201611163267 A CN201611163267 A CN 201611163267A CN 106593981 A CN106593981 A CN 106593981A
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- oil
- valve
- reversal valve
- hydraulic system
- disk
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
- E01H1/02—Brushing apparatus, e.g. with auxiliary instruments for mechanically loosening dirt
- E01H1/05—Brushing apparatus, e.g. with auxiliary instruments for mechanically loosening dirt with driven brushes
- E01H1/053—Brushing apparatus, e.g. with auxiliary instruments for mechanically loosening dirt with driven brushes having vertical axes
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention relates to a sweeping plate lifting hydraulic system, a sweeping machine hydraulic system and a sweeping machine. The sweeping plate lifting hydraulic system comprises an oil tank, a hydraulic pump, a first reversing valve and a sweeping plate lifting oil cylinder, wherein the hydraulic pump communicates with an oil inlet of the first reversing valve; a first working oil port of the first reversing valve communicates with a rodless cavity of the sweeping plate lifting oil cylinder through a first oil way; a second working oil port of the first reversing valve communicates with a rod cavity of the sweeping plate lifting oil cylinder through a second oil way; a hydraulic control one-way valve is arranged on the first oil way; the rodless cavity further communicates with the oil tank through a third oil line; a switch valve is arranged on the third oil way; or a switch valve is arranged on the first oil way. By the technical scheme, automatic obstacle avoidance of a sweeping plate can be realized, and the service life of the sweeping plate is prolonged.
Description
Technical field
It relates to sweeping machine field, in particular it relates to one kind sweep disk hydraulic system for lifting, sweeping machine hydraulic system and
Sweeping machine.
Background technology
Dry-type road sweeper (hereinafter referred to as dry to sweep car) is mainly used for high-grade highway, arterial street, loop wire viaduct, wide
The cement such as field, airport and the cleaning work on pitch mixed mud road surface, when the car carries out cleaning work without the need for watering, without airborne dust, it is special
Not Shi Yongyu the north and water-deficient area use.
To realize that dry car of sweeping carries out cleaning work function without the need for watering, by without airborne dust, increase on disk vacuum receipts sweeping
Dust hood.During work, the dust collection cover road clearance is about 10mm, and draught fan impeller rotation is evacuated air in sealing dustbin.Receive
Dust hood is connected by mozzle with dustbin, so that negative pressure is formed between dust collection cover and ground, so as to the ash for sweeping up brush
In the suction dustbin such as dirt, rubbish.Due to vacuum dust collection cover be rigid structural member, road clearance very little, when vehicle operation advance
The larger rubbish of Shi Yujian volumes or jolt road surface when cannot avoiding barrier automatically.
The content of the invention
The purpose of the disclosure is to provide one kind and sweeps disk hydraulic system for lifting, and this is swept disk hydraulic system for lifting and can make to sweep disk automatic
Evade road obstacle, and can self-return after clearing the jumps.
To achieve these goals, the disclosure provides one kind and sweeps disk hydraulic system for lifting, including fuel tank, hydraulic pump, first
Reversal valve and disk hoist cylinder is swept, the hydraulic pump is connected with the oil-in of first reversal valve, first reversal valve
First actuator port is connected by the first oil circuit with the rodless cavity for sweeping disk hoist cylinder, the second work of first reversal valve
Make hydraulic fluid port to connect with the rod chamber for sweeping disk hoist cylinder by the second oil circuit, on first oil circuit fluid-control one-way is provided with
Valve, the rodless cavity is also connected by the 3rd oil circuit with the fuel tank, and on the 3rd oil circuit switch valve is provided with；Or, institute
State and be provided with switch valve on the first oil circuit.
Alternatively, the switch valve is electromagnetic switch valve.
Alternatively, the free oil-in of the hydraulic control one-way valve is communicated with the first actuator port of first reversal valve,
The free oil-out of the hydraulic control one-way valve is communicated with the rodless cavity, the control port of the hydraulic control one-way valve and described second
Oil circuit is communicated.
Alternatively, first reversal valve has the first operating position, the second operating position and the 3rd operating position, in institute
The first operating position is stated, the oil-in of first reversal valve is connected with the first actuator port, the oil return of first reversal valve
Mouth is connected with the second actuator port；In second operating position, the oil-in and the second actuator port of first reversal valve
Connection, the oil return opening of first reversal valve is connected with the first actuator port；In the 3rd operating position, first commutation
First actuator port and the second actuator port of valve is connected with the oil return opening.
Alternatively, it is other on the oil circuit between the hydraulic pump and the first reversal valve to be connected to overflow valve.
By above-mentioned technical proposal, when disk is swept in working condition, due to sweeping the rodless cavity of disk hoist cylinder and having bar
Chamber connects with fuel tank so that sweeping disk can freely up and down float, and when road obstacle is run into, sweeping disk can be in barrier
Upper lift under counter-active effect, so as to avoiding barrier；After clearing the jumps, sweeping disk can decline under self gravitation effect, weight
Newly return to operating position.In this manner it is possible to realize sweeping disk automatic obstacle-avoiding, the service life for sweeping disk is extended.
The disclosure also provides a kind of sweeping machine hydraulic system, including sweeping disk hydraulic system for lifting as above.
Alternatively, the sweeping machine hydraulic system also includes that the second reversal valve shows oil cylinder with disk is swept, and the hydraulic pump leads to
Cross second reversal valve drive it is described sweep disk to show oil cylinder flexible, second reversal valve and the disk of sweeping are shown between oil cylinder
Oil circuit on be provided with bidirectional hydraulic lock.
Alternatively, the sweeping machine hydraulic system also include the 3rd reversal valve, first sweep table motor, second sweep table motor and
4th reversal valve, the hydraulic pump is connected with the oil-in of the 3rd reversal valve, the first working oil of the 3rd reversal valve
The oil-in that mouth sweeps table motor with first is connected, and the second actuator port of the 3rd reversal valve and described first sweeps table motor
Oil-out is connected respectively by the second check valve and the 3rd check valve with the oil-in of the 4th reversal valve, the 4th commutation
The oil-in and oil-out that two actuator ports of valve sweep table motor with described second respectively is connected, the 3rd reversal valve and
The oil return opening of four reversal valves is connected with the fuel tank.
Alternatively, the sweeping machine hydraulic system also includes the 5th reversal valve, the first one-way throttle valve and the second unidirectional section
Stream valve, the hydraulic pump is connected with the oil-in of the 5th reversal valve, the oil return opening and the fuel tank of the 5th reversal valve
Connection, two actuator ports of the 5th reversal valve respectively by first one-way throttle valve and the second one-way throttle valve with
The fuel tank connection.
The disclosure also provides a kind of sweeping machine, including sweeping machine hydraulic system as above.
Other feature and advantage of the disclosure will be described in detail in subsequent specific embodiment part.
Description of the drawings
Accompanying drawing is, for providing further understanding of the disclosure, and to constitute the part of specification, with following tool
Body embodiment is used to explain the disclosure together, but does not constitute restriction of this disclosure.In the accompanying drawings：
Fig. 1 is the schematic diagram for sweeping disk hydraulic system for lifting of the first embodiment according to the disclosure；
Fig. 2 is the schematic diagram for sweeping disk hydraulic system for lifting of the second embodiment according to the disclosure；
Fig. 3 is a kind of schematic diagram of the sweeping machine hydraulic system of the embodiment according to the disclosure.
Description of reference numerals
The hydraulic pump of 1 fuel tank 2
The overflow valve of 3 first check valve 4
The hydraulic control one-way valve of 5 first reversal valve 6
7 sweep the switch valve of disk hoist cylinder 8
9 second reversal valves 10 sweep disk and show oil cylinder
The reversal valve of 11 bidirectional hydraulic lock 12 the 3rd
131 first sweep table motor 132 second sweeps table motor
The one-way throttle valve of 14 the 4th reversal valve 15 first
The check valve of 16 second one-way throttle valve 17 second
The check valve of 18 the 5th reversal valve 19 the 3rd
The oil circuit of 21 first oil circuit 22 second
23 the 3rd oil circuits
Specific embodiment
It is described in detail below in conjunction with accompanying drawing specific embodiment of this disclosure.It should be appreciated that this place is retouched
The specific embodiment stated is merely to illustrate and explains the disclosure, is not limited to the disclosure.
According to an aspect of this disclosure, as depicted in figs. 1 and 2, there is provided one kind sweeps disk hydraulic system for lifting, for controlling
Lift on sweeping disc for road sweeper or decline.This is swept disk hydraulic system for lifting including fuel tank 1, hydraulic pump 2, the first reversal valve 5 and sweeps disk liter
Drop oil cylinder 7, hydraulic pump 2 is connected with the oil-in 51 of the first reversal valve 5, and the oil return opening 52 of the first reversal valve 5 is connected with fuel tank 1,
First actuator port 53 of the first reversal valve 5 is connected by the first oil circuit 21 with the rodless cavity for sweeping disk hoist cylinder 7, the first commutation
Second actuator port 54 of valve 5 is connected by the second oil circuit 22 with the rod chamber for sweeping disk hoist cylinder 7.
First reversal valve 5 can be three-position four-way electromagnetic directional valve, and with the first operating position, the second operating position
With the 3rd operating position, in the first operating position (that is, left position in Fig. 1 and Fig. 2), the oil-in 51 and first of the first reversal valve 5
Actuator port 53 is connected, and the oil return opening 52 of the first reversal valve 5 is connected with the second actuator port 54, is swept disk hoist cylinder 7 and is extended, and is swept
Lift on disk；In the second operating position (that is, right position in Fig. 1 and Fig. 2), the actuator port of oil-in 51 and second of the first reversal valve 5
54 connections, the oil return opening 52 of the first reversal valve 5 connects with the first actuator port 53, sweeps disk hoist cylinder 7 and shorten, and sweeps disk decline；
In the 3rd operating position (that is, middle position in Fig. 1 and Fig. 2), first actuator port 53 and the second actuator port 54 of the first reversal valve 5
Connect with oil return opening 52.
As shown in figure 1, in the first embodiment of the disclosure, on the first oil circuit 21 hydraulic control one-way valve 6, hydraulic control are provided with
The free oil-in of check valve 6 is communicated with the first actuator port 53 of the first reversal valve 5, the free oil-out of hydraulic control one-way valve 6
Communicate with the rodless cavity for sweeping disk hoist cylinder 7, the control port of hydraulic control one-way valve 6 is communicated with the second oil circuit 22, sweep disk lifting oil
The rodless cavity of cylinder 7 is also connected by the 3rd oil circuit 23 with fuel tank 1, and on the 3rd oil circuit 23 switch valve 8 is provided with.Here, hydraulic control list
Can be used as the one-way hydraulic lock swept in disk hydraulic system for lifting to valve 6, switch valve 8 can be electromagnetic switch valve.
In the above-described first embodiment, as shown in figure 1, sweeping disk under non-working condition, sweep disk and pack up, first changes
The 3rd operating position (that is, middle position in Fig. 1) is in valve 5, switch valve 8 is in rest position (that is, left position in Fig. 1), sweeps disk liter
Hydraulic oil in the drop rodless cavity of oil cylinder 7 cannot flow, and shorten so as to prevent from sweeping disk hoist cylinder 7, prevent from sweeping disk surprisingly falling, and protect
Card security；Sweeping during disk is switched to working condition from non-working condition, the first reversal valve 5 is from the 3rd operating position
(that is, right position in Fig. 1) is switched to the second operating position (that is, right position in Fig. 1), so as to sweep disk hoist cylinder 7 shorten, under sweeping disk
Drop；After disk decline in place is swept, the second reversal valve 5 is switched to the 3rd operating position from the second operating position (that is, right position in Fig. 1)
(that is, right position in Fig. 1), switch valve 8 is switched to conduction position (that is, right position in Fig. 1) from rest position (that is, left position in Fig. 1), with
The rodless cavity and rod chamber of sweeping disk hoist cylinder 7 is connected with fuel tank 1, sweep disk in working condition.
As shown in Fig. 2 in the second embodiment of the disclosure, on the first oil circuit 21 switch valve 8 is provided with.Here, open
It can be electromagnetic switch valve to close valve 8.
In the above-described 2nd embodiment, as shown in Fig. 2 sweeping disk under non-working condition, sweep disk and pack up, first changes
The 3rd operating position (that is, middle position in Fig. 2) is in valve 5, switch valve 8 is in rest position (that is, right position in Fig. 2), sweeps disk liter
Hydraulic oil in the drop rodless cavity of oil cylinder 7 cannot flow, and shorten so as to prevent from sweeping disk hoist cylinder 7, prevent from sweeping disk surprisingly falling, and protect
Card security；Sweeping during disk is switched to working condition from non-working condition, switch valve 8 is from rest position (that is, in Fig. 2
Right position) conduction position (that is, left position in Fig. 2) is switched to, the first reversal valve 5 switches from the 3rd operating position (that is, right position in Fig. 2)
To the second operating position (that is, right position in Fig. 2), so as to sweep disk hoist cylinder 7 shorten, disk decline is swept；After disk decline in place is swept,
Second reversal valve 5 is switched to the 3rd operating position (that is, right position in Fig. 2) from the second operating position (that is, right position in Fig. 2), switch
Valve 8 is switched to conduction position (that is, left position in Fig. 2) from rest position (that is, right position in Fig. 2), so as to sweep the nothing of disk hoist cylinder 7
Rod cavity and rod chamber are connected with fuel tank 1, sweep disk in working condition.
It is evidenced from the above discussion that, in the first embodiment and second embodiment of the disclosure, when disk is swept operation is in
During operating mode, because the rodless cavity and rod chamber of sweeping disk hoist cylinder 7 are connected with fuel tank 1 so that sweeping disk can freely up and down float
It is dynamic, when road obstacle is run into, sweep disk can under the counter-active effect of barrier on lift, so as to avoiding barrier；Cross barrier
After hindering thing, sweeping disk can decline under self gravitation effect, come back to operating position.In this manner it is possible to realize sweeping disk
Automatic obstacle-avoiding, extends the service life for sweeping disk.
In order to ensure security of system, as depicted in figs. 1 and 2, the oil circuit between the reversal valve 5 of hydraulic pump 2 and first can be with
Upper side is connected to overflow valve 4.
In order to prevent fluid to be back in hydraulic pump 2, as depicted in figs. 1 and 2, between the reversal valve 5 of hydraulic pump 2 and first
The first check valve 3 can be in series with oil circuit.
According to another aspect of the present disclosure, as shown in Figure 3, there is provided a kind of sweeping machine hydraulic system, the sweeping machine hydraulic pressure system
System includes sweeping disk hydraulic system for lifting as above.
Specifically, the sweeping machine hydraulic system of the disclosure can also include that sweeping disk shows hydraulic system and sweep disc spins hydraulic pressure
System.For the quantity of Hydraulic Elements in reduction system, it is described sweep that disk shows hydraulic system and sweep disc spins hydraulic system can be with
A hydraulic pump 2 is shared with disk hydraulic system for lifting is swept.
Wherein, disk pendulum can also be swept including two the second reversal valves 9 and two as shown in figure 3, sweeping disk and showing hydraulic system
Go out oil cylinder 10, hydraulic pump 2 is driven to sweep disk and show oil cylinder 10 by the second reversal valve 9 and stretched, and the second reversal valve 9 can be three four
Electric change valve.To ensure that sweeping disk shows after oil cylinder 10 stretches in place and will not shift because of external force, can be in the second reversal valve 9
Arrange on the oil circuit that disk is shown between oil cylinder 10 bidirectional hydraulic lock 11 with sweeping.
As shown in figure 3, sweeping disc spins hydraulic system can also include that the 3rd reversal valve 12, first sweep table motor 131, second
The reversal valve 14 of table motor 132 and the 4th is swept, hydraulic pump 2 is connected with the oil-in of the 3rd reversal valve 12, the of the 3rd reversal valve 12
The oil-in that one actuator port sweeps table motor 131 with first is connected, and the second actuator port of the 3rd reversal valve 12 and first sweeps disk
The oil-out of motor 131 is connected respectively by the second check valve 17 and the 3rd check valve 19 with the oil-in of the 4th reversal valve 14,
Two actuator ports of the 4th reversal valve 14 are swept respectively the oil-in and oil-out of table motor 132 with second and are connected, the 3rd commutation
The oil return opening of the reversal valve 14 of valve 12 and the 4th is connected with fuel tank 1.Here, the 3rd reversal valve 12 can be 3-position 4-way electromagnetic switch
Valve, the 4th reversal valve 14 can be two-position four-way solenoid directional control valve.
When the 3rd reversal valve 12 is in left position in left position, and the 4th reversal valve 14, first sweeps table motor 131 revolves
Turn, second sweeps table motor 132 does not rotate；When the 3rd reversal valve 12 is in right position in left position, and the 4th reversal valve 14, the
Sweep table motor 131 and second to sweep table motor 132 and rotate together；When the 3rd reversal valve 12 is in right position, and the 4th reversal valve
14 in right position when, second sweeps table motor 132 rotates, and first sweeps table motor 131 does not rotate；When the 3rd reversal valve 12 is in middle position
When, sweep table motor for two and do not rotate.
In order that the rotating speed for sweeping table motor has high, medium and low three gear, as shown in figure 3, sweeping machine hydraulic system can also be wrapped
Include the 4th reversal valve 18, the first one-way throttle valve 15 and the second one-way throttle valve 16, the oil-feed of the reversal valve 18 of hydraulic pump 2 and the 5th
Mouth connection, the oil return opening of the 5th reversal valve 18 is connected with fuel tank 1, and two actuator ports of the 5th reversal valve 18 pass through respectively first
The one-way throttle valve 16 of one-way throttle valve 15 and second is connected with fuel tank 1.Here, the 4th reversal valve 18 can be 3-position 4-way electromagnetism
Reversal valve.Turning for motor can be controlled by arranging the amount of restriction of the first one-way throttle valve 15 and the second one-way throttle valve 16
Speed.For example, can be set as, when the 4th reversal valve 18 is in middle position, sweeping table motor and rotating at a high speed；When the 4th reversal valve 18
In left position when, sweep table motor middling speed rotation；When the 4th reversal valve 18 is in right position, table motor low speed rotation is swept.
According to the another further aspect of the disclosure, there is provided a kind of sweeping machine, the sweeping machine includes sweeping machine hydraulic pressure as above
System.The sweeping machine especially can be dry-type road sweeper.
The preferred embodiment of the disclosure is described in detail above in association with accompanying drawing, but, the disclosure is not limited to above-mentioned reality
The detail in mode is applied, in the range of the technology design of the disclosure, various letters can be carried out with technical scheme of this disclosure
Monotropic type, these simple variants belong to the protection domain of the disclosure.
It is further to note that each particular technique feature described in above-mentioned specific embodiment, in not lance
In the case of shield, can be combined by any suitable means.In order to avoid unnecessary repetition, the disclosure to it is various can
The combination of energy is no longer separately illustrated.
Additionally, can also be combined between a variety of embodiments of the disclosure, as long as it is without prejudice to this
Disclosed thought, it should equally be considered as disclosure disclosure of that.
Claims (10)
1. one kind sweeps disk hydraulic system for lifting, including fuel tank (1), hydraulic pump (2), the first reversal valve (5) and sweeps disk hoist cylinder
(7), the hydraulic pump (2) connects with the oil-in (51) of first reversal valve (5), and the first of first reversal valve (5)
Actuator port (53) is connected by the first oil circuit (21) with the rodless cavity for sweeping disk hoist cylinder (7), first reversal valve
(5) the second actuator port (54) is connected by the second oil circuit (22) with the rod chamber for sweeping disk hoist cylinder (7), its feature
It is,
Be provided with hydraulic control one-way valve (6) on first oil circuit (21), the rodless cavity also by the 3rd oil circuit (23) with it is described
Fuel tank (1) is connected, and on the 3rd oil circuit (23) switch valve (8) is provided with；
Or, it is provided with switch valve (8) on first oil circuit (21).
2. it is according to claim 1 to sweep disk hydraulic system for lifting, it is characterised in that the switch valve (8) is electromagnetic switch
Valve.
3. it is according to claim 1 to sweep disk hydraulic system for lifting, it is characterised in that the freedom of the hydraulic control one-way valve (6)
Oil-in is communicated with first actuator port (53) of first reversal valve (5), the free oil-out of the hydraulic control one-way valve (6)
Communicate with the rodless cavity, the control port of the hydraulic control one-way valve (6) is communicated with second oil circuit (22).
4. it is according to claim 1 to sweep disk hydraulic system for lifting, it is characterised in that first reversal valve (5) is with
One operating position, the second operating position and the 3rd operating position, in first operating position, first reversal valve (5)
Oil-in (51) is connected with the first actuator port (53), oil return opening (52) and second actuator port of first reversal valve (5)
(54) connect；In second operating position, the oil-in (51) of first reversal valve (5) is with the second actuator port (54) even
Logical, the oil return opening (52) of first reversal valve (5) is connected with the first actuator port (53)；In the 3rd operating position, institute
The first actuator port (53) and the second actuator port (54) for stating the first reversal valve (5) is connected with the oil return opening (52).
5. it is according to claim 1 to sweep disk hydraulic system for lifting, it is characterised in that the hydraulic pump (2) and the first commutation
It is other on oil circuit between valve (5) to be connected to overflow valve (4).
6. a kind of sweeping machine hydraulic system, it is characterised in that sweep disk raise-lower hydraulic including any one of claim 1-5
System.
7. sweeping machine hydraulic system according to claim 6, it is characterised in that the sweeping machine hydraulic system also includes the
Two reversal valves (9) and sweep disk and show oil cylinder (10), the hydraulic pump (2) by second reversal valve (9) drive described in sweep disk
Show oil cylinder (10) to stretch, second reversal valve (9) be provided with the oil circuit that disk is shown between oil cylinder (10) double with described sweeping
To hydraulic lock (11).
8. sweeping machine hydraulic system according to claim 6, it is characterised in that the sweeping machine hydraulic system also includes the
Three reversal valves (12), first are swept table motor (131), second sweep table motor (132) and the 4th reversal valve (14), the hydraulic pump
(2) connect with the oil-in of the 3rd reversal valve (12), the first actuator port of the 3rd reversal valve (12) is swept with first
The oil-in connection of table motor (131), the second actuator port of the 3rd reversal valve (12) and described first sweeps table motor
(131) oil-out passes through respectively the oil-feed of the second check valve (17) and the 3rd check valve (19) and the 4th reversal valve (14)
Mouthful connection, oil-in that two actuator ports of the 4th reversal valve (14) sweep table motor (132) with described second respectively and
Oil-out is connected, and the oil return opening of the 3rd reversal valve (12) and the 4th reversal valve (14) is connected with the fuel tank (1).
9. sweeping machine hydraulic system according to claim 6, it is characterised in that the sweeping machine hydraulic system also includes the
Five reversal valves (18), the first one-way throttle valve (15) and the second one-way throttle valve (16), the hydraulic pump (2) is changed with the described 5th
Connect to the oil-in of valve (18), the oil return opening of the 5th reversal valve (18) is connected with the fuel tank (1), the 5th commutation
Two actuator ports of valve (18) respectively by first one-way throttle valve (15) and the second one-way throttle valve (16) with it is described
Fuel tank (1) is connected.
10. a kind of sweeping machine, it is characterised in that including the sweeping machine hydraulic system any one of claim 6-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611163267.8A CN106593981A (en) | 2016-12-15 | 2016-12-15 | Sweeping plate lifting hydraulic system, sweeping machine hydraulic system and sweeping machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611163267.8A CN106593981A (en) | 2016-12-15 | 2016-12-15 | Sweeping plate lifting hydraulic system, sweeping machine hydraulic system and sweeping machine |
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| CN106593981A true CN106593981A (en) | 2017-04-26 |
Family
ID=58801973
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611163267.8A Pending CN106593981A (en) | 2016-12-15 | 2016-12-15 | Sweeping plate lifting hydraulic system, sweeping machine hydraulic system and sweeping machine |
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| CN (1) | CN106593981A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107100906A (en) * | 2017-06-27 | 2017-08-29 | 江苏柳工机械有限公司 | The flow distributing system of oblique angle sweeper |
| CN107120322A (en) * | 2017-06-19 | 2017-09-01 | 徐州徐工环境技术有限公司 | sweeper hydraulic control system and control method |
| CN110117941A (en) * | 2019-05-17 | 2019-08-13 | 河北安旭专用汽车有限公司 | Purging system and scavenging machine |
| WO2021073067A1 (en) * | 2019-10-16 | 2021-04-22 | 珠海亿华电动车辆有限公司 | Oil circuit control device and street sweeping vehicle |
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| CN107120322B (en) * | 2017-06-19 | 2019-03-26 | 徐州徐工环境技术有限公司 | Sweeper hydraulic control system and control method |
| CN107100906A (en) * | 2017-06-27 | 2017-08-29 | 江苏柳工机械有限公司 | The flow distributing system of oblique angle sweeper |
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