CN109706866A - A kind of sweeper stepless speed regulation energy-saving hydraulic system - Google Patents
A kind of sweeper stepless speed regulation energy-saving hydraulic system Download PDFInfo
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- CN109706866A CN109706866A CN201811570433.5A CN201811570433A CN109706866A CN 109706866 A CN109706866 A CN 109706866A CN 201811570433 A CN201811570433 A CN 201811570433A CN 109706866 A CN109706866 A CN 109706866A
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Abstract
The invention discloses a kind of sweeper stepless speed regulation energy-saving hydraulic systems, it is provided with operated proportional flow control valve on the pipeline before hydraulic motor unit, operated proportional flow control valve is equipped with oil inlet, flow control oil outlet, and bypass drain tap, so, be conducive to control the revolving speed of hydraulic motor unit by the proportional flow output of flow control oil outlet on control operated proportional flow control valve to realize stepless speed regulation control, when use, user can adjust out best brush speed according to the roadway pollution degree of practical different sections of highway, obtain preferable brush effect, extra oil can be back in the hydraulic oil container from the bypass drain tap of operated proportional flow control valve, realize energy saving of system, its energy loss is small, it generates heat small, with substantive distinguishing features outstanding and significant progress；In addition, being connected with hydraulic cylinder unit between this case one-way valved outlet end and hydraulic oil container oil return opening, swung convenient for driving sweeping disc for road sweeper.
Description
Technical field
The present invention relates to a kind of sweeper stepless speed regulation energy-saving hydraulic systems.
Background technique
Sweeper is a kind of vehicle for road-cleaning, and brush revolving speed depends on the partial size of roadway pollution degree and rubbish
And density, roadway pollution is more serious, rubbish partial size and density are bigger, then required for brush revolving speed it is bigger, but brush revolving speed
It is excessive to will lead to excessive fugitive dust, therefore optimal brush effect is obtained, it needs to adjust brush revolving speed according to road conditions.
Currently, mostly use high and low two grades of speed governing valve parallel connections on existing market, according to reversal valve select top gear speed governing valve or
The mode of low or first gear speed governing valve fuel feeding drives brush, realizes the control of two notch speeds degree high and low to brush speed.It is carried out in sweeper
During brush, vehicle is constantly advanced, and brush revolving speed can only be adjusted according to the top grade set up in advance or low-grade two notch speed degree
It is whole, it is unable to get optimal brush effect；And when brush revolving speed is run with setting speed, the extra oil liquid meeting of hydraulic pump outlet
The overflow from overflow valve will lead to system energy consumption seriously, excess energy turns since the oil pressure relief of overflow valve setting is high after overflow
It is changed to thermal energy, system is caused to heat up, easily influence system operation reliability.
As described above, the roadway pollution degree of practical different sections of highway is different, required best brush speed is also different, passes
The sweeper of system can not adjust optimal brush speed according to different surface conditions, obtain optimal brush effect；And tradition
Sweeper energy consumption it is serious.
Therefore, how to overcome above-mentioned defect, it has also become those skilled in the art's important topic urgently to be resolved.
Summary of the invention
The invention overcomes the shortcomings of the above-mentioned technology and provides a kind of sweeper stepless speed regulation energy-saving hydraulic systems.
To achieve the above object, present invention employs following technical proposals:
A kind of sweeper stepless speed regulation energy-saving hydraulic system includes hydraulic oil container 1, oil pump 2, check valve 3, proportional flow
Control valve 4 controls solenoid valve for driving sweeper to sweep the hydraulic motor unit 5 that disk rotates, overflow valve 6, unloading valve 7, on-off
8 and for driving the hydraulic cylinder unit 9 for sweeping disk swing, the operated proportional flow control valve 4 is equipped with oil inlet, flow control and goes out
Hydraulic fluid port and bypass drain tap, wherein the hydraulic oil container 1, oil pump 2, check valve 3, operated proportional flow control valve 4 oil inlet
It is in turn connected to form back with flow control oil outlet, on-off control solenoid valve 8, hydraulic motor unit 5,1 oil return opening of hydraulic oil container
Road, the bypass drain tap of the operated proportional flow control valve 4 are connect with 1 oil return opening of hydraulic oil container, one end of the overflow valve 6
It is connect with 3 outlet end of check valve, the other end of overflow valve 6 is connect with 1 oil return opening of hydraulic oil container, the unloading valve 7
One end connect with 3 outlet end of check valve, the other end is connect with 1 oil return opening of hydraulic oil container, the hydraulic cylinder unit 9
Oil inlet connect with 3 outlet end of check valve, the oil return opening of hydraulic cylinder unit 9 is connect with 1 oil return opening of hydraulic oil container.
A kind of sweeper stepless speed regulation energy-saving hydraulic system as described above, the hydraulic motor unit 5 includes first
Two-bit triplet reversal valve 51, the second two-bit triplet reversal valve 52, the first hydraulic motor 54 and the second hydraulic motor 55, it is described
The oil inlet of first two-bit triplet reversal valve 51 controls solenoid valve 8 as 5 oil inlet of hydraulic motor unit and the on-off
Connection, a commutation connector of the first two-bit triplet reversal valve 51 and the oil inlet of first hydraulic motor 54 connect
Connect, another commutation connector and first hydraulic motor 54 oil outlet and the second two-bit triplet reversal valve 52 into
Hydraulic fluid port connection, the oil inlet of commutation a connector and second hydraulic motor 55 of the second two-bit triplet reversal valve 52
Connection, another commutation connector are connect with the oil outlet of second hydraulic motor 55 and 1 oil return opening of the hydraulic oil container.
A kind of sweeper stepless speed regulation energy-saving hydraulic system as described above, the hydraulic cylinder unit 9 includes three four
Logical reversal valve 91, bidirectional hydraulic lock 92, throttle valve 93 and for drive the hydraulic cylinder 94 sweeping disk and swinging, the 3-position 4-way
The oil inlet of reversal valve 91 is connect with 3 outlet end of check valve, the oil return opening of three position four-way directional control valve 91 and the hydraulic oil
The connection of 1 oil return opening of case, an actuator port of the three position four-way directional control valve 91 pass through the side liquid of the bidirectional hydraulic lock 92
Control check valve is connect with the throttle valve 93, and 93 other end of throttle valve is connect with the rod chamber of the hydraulic cylinder 94, described
Another actuator port of three position four-way directional control valve 91 by the other side hydraulic control one-way valve of the bidirectional hydraulic lock 92 with it is described
The rodless cavity of hydraulic cylinder 94 connects.
A kind of sweeper stepless speed regulation energy-saving hydraulic system as described above, the hydraulic cylinder unit 9 are multiple, each liquid
One end of pressure cylinder unit 9 is all connect with 3 outlet end of check valve and the other end is connect with 1 oil return opening of hydraulic oil container.
Compared with prior art, the beneficial effects of the present invention are:
1, this case is provided with operated proportional flow control valve on the pipeline before hydraulic motor unit, and operated proportional flow control valve is set
There are oil inlet, flow control oil outlet and bypass drain tap, in this way, being conducive to upper by control operated proportional flow control valve
The proportional flow of amount control oil outlet exports to control the revolving speed of hydraulic motor unit to realize stepless speed regulation control, uses
When, user can adjust out best brush speed according to the roadway pollution degree of practical different sections of highway, preferable brush effect is obtained,
Extra oil can be back in the hydraulic oil container from the bypass drain tap of operated proportional flow control valve, realize energy saving of system, energy
Consume mistake is small, generates heat small, has substantive distinguishing features outstanding and significant progress；In addition, the setting of the overflow valve, is convenient for over-voltage
Protection, and the setting of the unloading valve, convenient for avoiding system band from carrying starting and convenient for the energy conservation of off-load in a non-operative state；In addition,
It is connected with hydraulic cylinder unit between this case one-way valved outlet end and hydraulic oil container oil return opening, is swung convenient for driving sweeping disc for road sweeper,
And be equipped with on-off between operated proportional flow control valve and hydraulic motor unit and control solenoid valve, it is dynamic when to control the hydraulic cylinder unit
When making, it can first control on-off control solenoid valve and close, one side is disconnected to hydraulic motor unit fuel feeding, on the other hand be may make
Pressure oil in operated proportional flow control valve enters its spring cavity, and operated proportional flow control valve is cut under the spring effect in its spring cavity
Breaking, it bypasses drain tap channel, in this way, fuel pump outlet can be driven via whole pressure oils of check valve by hydraulic cylinder unit
Sweeping disc for road sweeper is swung, and avoids releasing due to a large amount of or whole pressure oils from the bypass drain tap channel of operated proportional flow control valve,
The case where causing hydraulic cylinder unit movement speed to be greatly reduced or can not act, with substantive distinguishing features outstanding and
Significant progress.
2, this case hydraulic motor unit is set there are two hydraulic motor, is swept disk convenient for driving two and is rotated, and described first liang
The connection structure of position three-way diverter valve, the second two-bit triplet reversal valve, convenient for according to actual needs and to be operated alone first hydraulic
Motor rotates or is operated alone the rotation of the second hydraulic motor or the first hydraulic motor and the second hydraulic motor is driven to rotate simultaneously,
With substantive distinguishing features outstanding and significant progress.
3, this case realizes the control to hydraulic cylinder oil circuit flow direction, to control by the commutation of three position four-way directional control valve
The stretching of hydraulic cylinder processed retracts, in addition, being in middle position, three position four-way directional control valve shutdown when three position four-way directional control valve must not be electric
Front and back oil circuit connection, hydraulic cylinder unit stop working, and the setting of bidirectional hydraulic lock, protect convenient for the state after hydraulic cylinder movement
It holds, structure is reliable, has substantive distinguishing features outstanding and significant progress.
Detailed description of the invention
Fig. 1 is the principle sketch of this case.
Specific embodiment
Feature of present invention and other correlated characteristics are described in further detail by the following examples, in order to the same industry
The understanding of technical staff:
As shown in Figure 1, a kind of sweeper stepless speed regulation energy-saving hydraulic system, includes hydraulic oil container 1, oil pump 2, check valve
3, operated proportional flow control valve 4, for drive sweeper sweep disk rotation hydraulic motor unit 5, overflow valve 6, unloading valve 7, on-off
Control solenoid valve 8 and for drive sweep disk swing hydraulic cylinder unit 9, the operated proportional flow control valve 4 equipped with oil inlet,
Flow control oil outlet and bypass drain tap, wherein the hydraulic oil container 1, oil pump 2, check valve 3, operated proportional flow control valve
4 oil inlet and flow control oil outlet, on-off control solenoid valve 8, hydraulic motor unit 5,1 oil return opening of hydraulic oil container successively connect
Forming circuit is connect, the bypass drain tap of the operated proportional flow control valve 4 is connect with 1 oil return opening of hydraulic oil container, the overflow
One end of valve 6 is connect with 3 outlet end of check valve, and the other end of overflow valve 6 is connect with 1 oil return opening of hydraulic oil container, institute
The one end for stating unloading valve 7 is connect with 3 outlet end of check valve, the other end is connect with 1 oil return opening of hydraulic oil container, the liquid
The oil inlet of pressure cylinder unit 9 is connect with 3 outlet end of check valve, and the oil return opening of hydraulic cylinder unit 9 is returned with the hydraulic oil container 1
Hydraulic fluid port connection.
As described above, this case is provided with operated proportional flow control valve 4, ratio stream on the pipeline before hydraulic motor unit 5
Control valve 4 is equipped with oil inlet, flow control oil outlet and bypass drain tap, in this way, being conducive to by controlling proportional flow
The proportional flow output of flow control oil outlet is stepless to realize to control the revolving speed of hydraulic motor unit 5 on control valve 4
Speed regulating control, in use, user can adjust out best brush speed according to the roadway pollution degree of practical different sections of highway, obtain compared with
Good brush effect, extra oil can be back in the hydraulic oil container 1 from the bypass drain tap of operated proportional flow control valve 4, real
Existing energy saving of system, energy loss is small, generates heat small, has substantive distinguishing features outstanding and significant progress；In addition, the overflow valve
Overvoltage protection, and the setting of the unloading valve 7, convenient for avoiding system band from carrying starting and convenient in inoperative shape are convenient in 6 setting
Off-load energy conservation under state；In addition, being connected with hydraulic cylinder unit 9 between 1 oil return opening of 3 outlet end of this case check valve and hydraulic oil container, it is convenient for
It drives sweeping disc for road sweeper to swing, and is equipped with on-off between operated proportional flow control valve 4 and hydraulic motor unit 5 and controls solenoid valve 8, when
When controlling the hydraulic cylinder unit 9 movement, it can first control on-off control solenoid valve 8 and close, one side is disconnected to hydraulic horse
Up to 5 fuel feeding of unit, the pressure oil in operated proportional flow control valve 4 on the other hand may make to enter its spring cavity, proportional flow control
Valve 4 is truncated it under the spring effect in its spring cavity and bypasses drain tap channel, in this way, the outlet of oil pump 2 is via the complete of check valve 3
Portion's pressure oil can drive sweeping disc for road sweeper to swing by hydraulic cylinder unit 9, avoid since a large amount of or whole pressure oils are from ratio
The bypass drain tap channel of flow control valve 4 releases, and 9 movement speed of hydraulic cylinder unit is caused to be greatly reduced or can not act
It happens, with substantive distinguishing features outstanding and significant progress.
As described above, when it is implemented, single valve body or the connection of more valve bodies can be used in operated proportional flow control valve 4 described in this case
Composition, as long as the proportional flow control device with bypass drain tap should all be shown as falling into the protection scope of this case.
As described above, when it is implemented, the hydraulic motor unit 5 includes the first two-bit triplet reversal valve 51, second
Two-bit triplet reversal valve 52, the first hydraulic motor 54 and the second hydraulic motor 55, the first two-bit triplet reversal valve 51
Oil inlet is connect as 5 oil inlet of hydraulic motor unit with on-off control solenoid valve 8, and first two-bit triplet changes
Connect to a commutation connector of valve 51 with the oil inlet of first hydraulic motor 54, another commutation connector with it is described
The connection of the oil inlet of the oil outlet of first hydraulic motor 54 and the second two-bit triplet reversal valve 52, second two-bit triplet
One commutation connector of reversal valve 52 is connect with the oil inlet of second hydraulic motor 55, another commutate connector and institute
State oil outlet and the connection of 1 oil return opening of the hydraulic oil container of the second hydraulic motor 55.
As described above, this case hydraulic motor unit 5 is set there are two hydraulic motor, disk is swept convenient for driving two and is rotated, and institute
The connection structure of the first two-bit triplet reversal valve 51, the second two-bit triplet reversal valve 52 is stated, convenient for according to actual needs and independent
The first hydraulic motor 54 is driven to rotate or be operated alone the rotation of the second hydraulic motor 55 or drive 54 He of the first hydraulic motor simultaneously
Second hydraulic motor 55 rotation, with substantive distinguishing features outstanding and significant progress.
As described above, when it is implemented, the hydraulic cylinder unit 9 includes three position four-way directional control valve 91, bidirectional hydraulic lock
92, throttle valve 93 and for drive sweep disk swing hydraulic cylinder 94, the oil inlet of the three position four-way directional control valve 91 with it is described
The connection of 3 outlet end of check valve, the oil return opening of three position four-way directional control valve 91 are connect with 1 oil return opening of hydraulic oil container, and described three
The side hydraulic control one-way valve and the throttle valve 93 that one actuator port of four-way reversing valve 91 passes through the bidirectional hydraulic lock 92
Connection, 93 other end of throttle valve connect with the rod chamber of the hydraulic cylinder 94, the three position four-way directional control valve 91 it is another
A actuator port is connect by the other side hydraulic control one-way valve of the bidirectional hydraulic lock 92 with the rodless cavity of the hydraulic cylinder 94.
As described above, this case passes through the commutation of three position four-way directional control valve 91, realize to 94 oil circuit flow direction of hydraulic cylinder
Control, thus control hydraulic cylinder 94 stretching retract, in addition, when three position four-way directional control valve 91 must not electricity when, be in middle position, three
The shutdown of four-way reversing valve 91 front and back oil circuit connection, hydraulic cylinder unit 9 stops working, and the setting of bidirectional hydraulic lock 92, is convenient for liquid
State after cylinder pressure 94 acts is kept, and structure is reliable, has substantive distinguishing features outstanding and significant progress.
As described above, when it is implemented, the hydraulic cylinder unit 9 can be set as multiple according to practical structures demand, often
One end of a hydraulic cylinder unit 9 is all connect with 3 outlet end of check valve and the other end connects with 1 oil return opening of hydraulic oil container
It connects, in this way, sweeping the movement that disk is swung and other go up and down such as suction nozzle convenient for control.
As described above, this case protection is a kind of sweeper stepless speed regulation energy-saving hydraulic system, all and this case structure phase
Same or similar technical solution should all be shown as falling into the protection scope of this case.
Claims (4)
1. a kind of sweeper stepless speed regulation energy-saving hydraulic system, it is characterised in that include hydraulic oil container (1), oil pump (2), unidirectional
Valve (3), operated proportional flow control valve (4), for drive sweeper sweep disk rotation hydraulic motor unit (5), overflow valve (6), unload
Lotus valve (7), on-off control solenoid valve (8) and for driving the hydraulic cylinder unit (9) for sweeping disk swing, the proportional flow control
Valve (4) processed be equipped with oil inlet, flow control oil outlet and bypass drain tap, wherein the hydraulic oil container (1), oil pump (2),
Check valve (3), the oil inlet of operated proportional flow control valve (4) and flow control oil outlet, on-off control solenoid valve (8), hydraulic horse
Circuit, the bypass drain tap of the operated proportional flow control valve (4) are in turn connected to form up to unit (5), hydraulic oil container (1) oil return opening
It is connect with the hydraulic oil container (1) oil return opening, one end of the overflow valve (6) is connect with the check valve (3) outlet end, overflow
The other end of valve (6) is connect with the hydraulic oil container (1) oil return opening, and one end and the check valve (3) of the unloading valve (7) go out
The connection of mouth end, the other end are connect with the hydraulic oil container (1) oil return opening, the oil inlet and the list of the hydraulic cylinder unit (9)
It is connected to valve (3) outlet end, the oil return opening of hydraulic cylinder unit (9) is connect with the hydraulic oil container (1) oil return opening.
2. a kind of sweeper stepless speed regulation energy-saving hydraulic system according to claim 1, it is characterised in that the hydraulic horse
It include the first two-bit triplet reversal valve (51), the second two-bit triplet reversal valve (52), the first hydraulic motor up to unit (5)
(54) and the second hydraulic motor (55), the oil inlet of the first two-bit triplet reversal valve (51) is as the hydraulic motor
Unit (5) oil inlet is connect with on-off control solenoid valve (8), a commutation of the first two-bit triplet reversal valve (51)
Connector is connect with the oil inlet of first hydraulic motor (54), another commutate connector and described first hydraulic motor
(54) the oil inlet connection of oil outlet and the second two-bit triplet reversal valve (52), the second two-bit triplet reversal valve
(52) a commutation connector connect with the oil inlet of second hydraulic motor (55), another commutation connector with it is described
The oil outlet and the hydraulic oil container (1) oil return opening of second hydraulic motor (55) connect.
3. a kind of sweeper stepless speed regulation energy-saving hydraulic system according to claim 1, it is characterised in that the hydraulic cylinder
Unit (9) includes three position four-way directional control valve (91), bidirectional hydraulic lock (92), throttle valve (93) and sweeps disk pendulum for driving
The oil inlet of dynamic hydraulic cylinder (94), the three position four-way directional control valve (91) is connect with the check valve (3) outlet end, and three four
The oil return opening of logical reversal valve (91) is connect with the hydraulic oil container (1) oil return opening, and one of the three position four-way directional control valve (91)
Actuator port is connect by the side hydraulic control one-way valve of the bidirectional hydraulic lock (92) with the throttle valve (93), the throttle valve
(93) other end is connect with the rod chamber of the hydraulic cylinder (94), another actuator port of the three position four-way directional control valve (91)
It is connect by the other side hydraulic control one-way valve of the bidirectional hydraulic lock (92) with the rodless cavity of the hydraulic cylinder (94).
4. a kind of sweeper stepless speed regulation energy-saving hydraulic system according to claim 1 to 3, it is characterised in that
The hydraulic cylinder unit (9) be it is multiple, one end of each hydraulic cylinder unit (9) connect with the check valve (3) outlet end and
The other end is connect with the hydraulic oil container (1) oil return opening.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811570433.5A CN109706866A (en) | 2018-12-21 | 2018-12-21 | A kind of sweeper stepless speed regulation energy-saving hydraulic system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811570433.5A CN109706866A (en) | 2018-12-21 | 2018-12-21 | A kind of sweeper stepless speed regulation energy-saving hydraulic system |
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| CN109706866A true CN109706866A (en) | 2019-05-03 |
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| CN201811570433.5A Pending CN109706866A (en) | 2018-12-21 | 2018-12-21 | A kind of sweeper stepless speed regulation energy-saving hydraulic system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110453631A (en) * | 2019-09-12 | 2019-11-15 | 徐州徐工环境技术有限公司 | Cleaning vehicle for guardrail |
| CN110821905A (en) * | 2019-11-13 | 2020-02-21 | 山东路得威工程机械制造有限公司 | Energy-saving hydraulic vibrating rod speed regulation hydraulic circuit |
| CN113357217A (en) * | 2021-08-10 | 2021-09-07 | 徐州徐工环境技术有限公司 | Multifunctional waterway driving system suitable for tunnel cleaning working condition |
| CN115182286A (en) * | 2021-04-02 | 2022-10-14 | 上海熙众新能源技术有限公司 | Sweeping vehicle, sweeping brush assembly, sweeping brush floating hydraulic system and control method thereof |
| CN115870839A (en) * | 2023-03-08 | 2023-03-31 | 南京仁厚科技有限公司 | Fiberboard edging processing device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110453631A (en) * | 2019-09-12 | 2019-11-15 | 徐州徐工环境技术有限公司 | Cleaning vehicle for guardrail |
| CN110821905A (en) * | 2019-11-13 | 2020-02-21 | 山东路得威工程机械制造有限公司 | Energy-saving hydraulic vibrating rod speed regulation hydraulic circuit |
| CN115182286A (en) * | 2021-04-02 | 2022-10-14 | 上海熙众新能源技术有限公司 | Sweeping vehicle, sweeping brush assembly, sweeping brush floating hydraulic system and control method thereof |
| CN113357217A (en) * | 2021-08-10 | 2021-09-07 | 徐州徐工环境技术有限公司 | Multifunctional waterway driving system suitable for tunnel cleaning working condition |
| CN115870839A (en) * | 2023-03-08 | 2023-03-31 | 南京仁厚科技有限公司 | Fiberboard edging processing device |
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Application publication date: 20190503 |
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| RJ01 | Rejection of invention patent application after publication |