CN107100906A - The flow distributing system of oblique angle sweeper - Google Patents
The flow distributing system of oblique angle sweeper Download PDFInfo
- Publication number
- CN107100906A CN107100906A CN201710500559.4A CN201710500559A CN107100906A CN 107100906 A CN107100906 A CN 107100906A CN 201710500559 A CN201710500559 A CN 201710500559A CN 107100906 A CN107100906 A CN 107100906A
- Authority
- CN
- China
- Prior art keywords
- valve
- pivot angle
- flow
- way
- distributing system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
-
- 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
-
- 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
- F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/305—Directional control characterised by the type of valves
- F15B2211/30505—Non-return valves, i.e. check valves
- F15B2211/30515—Load holding valves
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/50—Pressure control
- F15B2211/505—Pressure control characterised by the type of pressure control means
- F15B2211/50563—Pressure control characterised by the type of pressure control means the pressure control means controlling a differential pressure
- F15B2211/50572—Pressure control characterised by the type of pressure control means the pressure control means controlling a differential pressure using a pressure compensating valve for controlling the pressure difference across a flow control valve
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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)
- Road Paving Machines (AREA)
Abstract
The invention discloses a kind of flow distributing system of oblique angle sweeper, including oil pump, pivot angle reversal valve, pivot angle oil cylinder, round brush motor, constant flow control valve, hydraulic control one-way valve, repairing check valve, safety overflow valve and auxiliary overflow valve.The constant flow control valve includes adjustable throttling and pressure-compensated valve.Fluid is by splitting into two-way during work after oil pump, and fluid crosses pivot angle reversal valve through adjustable throttling and flow to pivot angle oil cylinder all the way, and another road binders liquid then flow to round brush motor through pressure-compensated valve, and last two-way fluid collaborates to fuel tank.Beneficial effect：The present invention is combined using simple Hydraulic Elements, is solved oblique angle sweeper swing angle and is difficult to control to and the problem of round brush motor and pivot angle oil cylinder work compound, it is ensured that oblique angle sweeper can steadily, continue, the operation of safety.
Description
Technical field
The present invention relates to the assignment of traffic system of a kind of flow distributing system of construction machinery product, particularly oblique angle sweeper
System, belongs to technical field of engineering machinery.
Background technology
Current engineering machinery can increasingly be equipped with accessory and carry out operation, and wherein oblique angle sweeper is conventional road administration accessory.
Existing engineering machinery can only typically export a kind of power source, i.e. fluid, and the working condition of oblique angle sweeper is typically more multiple
Miscellaneous, its round brush motor is different to the demand of fluid with pivot angle oil cylinder.During oblique angle sweeper work, round brush motor demand fluid amount
It is larger, and be always maintained at working condition, and pivot angle oil cylinder does pivot angle action by solenoid valve control when necessary, demand fluid amount compared with
It is small, account for 4% or so of whole system flow.If the fluid amount for flowing into pivot angle oil cylinder it is too big or it is unstable can impact big, swing
Angle is difficult to control to, and there is also potential safety hazard.Require that round brush motor and pivot angle oil cylinder can be same during the operation of oblique angle sweeper corner
When work, and conventional parallel hydraulic system because the outer load of round brush motor and pivot angle oil cylinder be change and it is widely different, it is impossible to
The problem of solving work compound well.
The content of the invention
Goal of the invention：The present invention is overcomes the shortcoming proposition that above-mentioned prior art is present, and it is clear that it aims to provide a kind of oblique angle
The flow distributing system of device is swept, to realize that it is dynamic that the complete machine of same power output can drive round brush motor and pivot angle oil cylinder to cooperate with
Make, allow the steady continuous service of sleeve mechanism.
Technical scheme：A kind of flow distributing system of oblique angle sweeper, including oil pump, pivot angle reversal valve, pivot angle oil cylinder and
Round brush motor, fluid is by splitting into two-way during work after oil pump, and fluid flow to pivot angle oil cylinder through pivot angle reversal valve all the way, another
Road binders liquid then flows into round brush motor, and last two-way fluid collaborates to fuel tank；The flow distributing system also includes constant flux control
Valve；The constant flow control valve includes adjustable throttling and pressure-compensated valve；Fluid flows into pivot angle through adjustable throttling and changed all the way
To valve, another road binders liquid flows into round brush motor through pressure-compensated valve；The pressure-compensated valve is by ensureing adjustable throttling A, B two
Pressure difference value between point ensures that the flow for flowing through adjustable throttling fluid is constant.
Preference, to ensure that pivot angle oil cylinder will not produce displacement when not working because of outer load, the flow distributing system
Also include hydraulic control one-way valve, the hydraulic control one-way valve is located between the pivot angle reversal valve and the pivot angle oil cylinder, and formation is closed
Lock loop.
Preference, for avoid because oil pump is stopped and caused by round brush motor damage, the flow distributing system also wraps
Repairing check valve is included, the repairing check valve is in parallel with the round brush motor.
Preference, to avoid the damage of whole oil circuit and executive component, the flow distributing system also includes safety overflow
Valve, the safety overflow valve is in parallel with the oil pump, and oil liquid pressure exceedes after safety value, and fluid is direct by safety overflow valve
Flow into fuel tank.
Preference, to ensure the smoothness of round brush motor operations, the flow distributing system also includes auxiliary overflow valve, institute
State auxiliary overflow valve and the oil circuit of the pivot angle reversal valve, hydraulic control one-way valve, the formation of pivot angle oil cylinder is in parallel.
Beneficial effect：The present invention is combined using simple Hydraulic Elements, solves oblique angle sweeper swing angle difficult
The problem of with control and round brush motor and pivot angle oil cylinder work compound, it is ensured that the fortune that oblique angle sweeper can steadily, lasting, safe
OK.
Brief description of the drawings
Fig. 1 is the schematic diagram of the principle of the invention.
Embodiment
The invention will be further described with reference to the accompanying drawings and examples.
As shown in figure 1, a kind of flow distributing system of oblique angle sweeper, including oil pump 1, pivot angle reversal valve 2, pivot angle oil cylinder
3rd, round brush motor 4, constant flow control valve 5, hydraulic control one-way valve 6, repairing check valve 7, safety overflow valve 8 and auxiliary overflow valve 9.Work
Fluid after oil pump 1 by splitting into two-way when making, and fluid flow to pivot angle oil cylinder 3 through pivot angle reversal valve 2 all the way, and another road binders liquid is then
Round brush motor 4 is flowed into, last two-way fluid collaborates to fuel tank；The constant flow control valve 5 includes adjustable throttling 51 and pressure
Recuperation valve 52；Fluid flows into pivot angle reversal valve 2 through adjustable throttling 51 all the way, and another road binders liquid is flowed into through pressure-compensated valve 52 and rolled
Brush motor 4；The pressure-compensated valve 52 is by ensureing that A, B point-to-point transmission pressure difference value of adjustable throttling 51 are adjustable to ensure to flow through
The flow of the fluid of choke valve 51 is constant.The hydraulic control one-way valve 6 is located between the pivot angle reversal valve 2 and the pivot angle oil cylinder 3,
And form locked loop.The repairing check valve 7 is in parallel with the round brush motor 4.The safety overflow valve 8 and the oil pump
1 is in parallel, and oil liquid pressure exceedes after safety value, and fluid flows directly into fuel tank by safety overflow valve 8.The auxiliary overflow valve 9
It is in parallel with the oil circuit of the pivot angle reversal valve 2, hydraulic control one-way valve 6, the formation of pivot angle oil cylinder 3.
When pivot angle oil cylinder 3 and round brush motor 4 work simultaneously, adjustable throttling 51, safety overflow valve 8 and auxiliary are first set
Help the corresponding safety value of overflow valve 9.Fluid after oil pump 1 by splitting into two-way, and fluid crosses pivot angle through adjustable throttling 51 all the way
Reversal valve 2, hydraulic control one-way valve 6 flow to pivot angle oil cylinder 3；Another road binders liquid then flow to round brush motor 4 through pressure-compensated valve 52, finally
Two-way fluid collaborates to fuel tank.Because the pressure-compensated valve 52 is by ensureing A, B point-to-point transmission pressure differential of adjustable throttling 51
Value ensures that the flow for flowing through the fluid of adjustable throttling 51 is constant, then the flow for flowing into pivot angle oil cylinder 3 keeps stable, pivot angle oil cylinder
The 3 driving steady pivot angles of sweeper, the problem of solving round brush motor 4 and pivot angle 3 work compound of oil cylinder.When pivot angle oil cylinder 3 is moved to
The pressure value that can cause 2 points of A, B in a flash of extreme position is equal, if now round brush motor 4 can be caused without auxiliary overflow valve 9
Caton phenomenon.Just due to the presence of auxiliary overflow valve 9, now fluid is without pivot angle reversal valve 2, and is flowed through auxiliary overflow valve 9
Enter fuel tank, it is ensured that the smoothness that round brush motor 4 works, and guarantor is played to pivot angle reversal valve 2, hydraulic control one-way valve 6, pivot angle oil cylinder 3
Shield is acted on.
When pivot angle oil cylinder 3 does not work, i.e., pivot angle reversal valve 2 is in middle position, and during the work of round brush motor 4, fluid is passed through all the way
Adjustable throttling 51 flow to pivot angle reversal valve 2；Another road binders liquid then flow to round brush motor 4, last two-way through pressure-compensated valve 52
Fluid collaborates to fuel tank.Now round brush motor 4 Caton phenomenon will not occur because pivot angle oil cylinder 3 does not work, and can continue smooth work
Make.In addition, because the hydraulic control one-way valve 6 is located between the pivot angle reversal valve 2 and the pivot angle oil cylinder 3, and form locking time
Road, makes pivot angle oil cylinder 3 not produce displacement because of outer load, improves the security of oblique angle sweeper.
Because the high speed rotation of oblique angle sweeper round brush causes its inertia larger, when oil pump 1 does not work, round brush motor 4
The rise of former low pressure chamber pressure value moment, former high pressure chest formation parital vacuum easily damages round brush motor 4.Due to present invention stream
Repairing check valve 7 in amount distribution system is in parallel with the round brush motor 4, when oil pump 1 does not work, the meeting of repairing check valve 7
By the fluid of former low-pressure area to the former high pressure chest repairing of round brush motor 4, hydrostatic stopping brake is realized, the damage of round brush motor 4 is prevented
It is bad.
Although be described in detail above to the present invention in conjunction with the embodiments, those skilled in the art's energy
It is enough to understand, on the premise of present inventive concept is not departed from, above-described embodiment can also be changed or changed, still be fallen at this
In the protection domain of invention.
Claims (5)
1. a kind of flow distributing system of oblique angle sweeper, including oil pump（1）, pivot angle reversal valve（2）, pivot angle oil cylinder（3）And rolling
Brush motor（4）, fluid passes through oil pump during work（1）After split into two-way, fluid is through pivot angle reversal valve all the way（2）It flow to pivot angle oil
Cylinder（3）, another road binders liquid then flows into round brush motor（4）, last two-way fluid collaborates to fuel tank；It is characterized in that：The flow
Distribution system also includes constant flow control valve（5）；The constant flow control valve（5）Including adjustable throttling（51）And pressure compensation
Valve（52）；Fluid is through adjustable throttling all the way（51）Flow into pivot angle reversal valve（2）, another road binders liquid is through pressure-compensated valve（52）Stream
Enter round brush motor（4）；The pressure-compensated valve（52）By ensureing adjustable throttling（51）The pressure difference value of A, B point-to-point transmission comes true
Guarantor flows through adjustable throttling（51）The flow of fluid is constant.
2. the flow distributing system of oblique angle sweeper according to claim 1, it is characterised in that：The flow distributing system
Also include hydraulic control one-way valve（6）, the hydraulic control one-way valve（6）Located at the pivot angle reversal valve（2）With the pivot angle oil cylinder（3）It
Between, and form locked loop.
3. the flow distributing system of oblique angle sweeper according to claim 2, it is characterised in that：The flow distributing system
Also include repairing check valve（7）, the repairing check valve（7）With the round brush motor（4）It is in parallel.
4. the flow distributing system of oblique angle sweeper according to claim 3, it is characterised in that：The flow distributing system
Also include safety overflow valve（8）, the safety overflow valve（8）With the oil pump（1）It is in parallel, oil liquid pressure exceedes safety value
Afterwards, fluid passes through safety overflow valve（8）Flow directly into fuel tank.
5. the flow distributing system of oblique angle sweeper according to claim 4, it is characterised in that：The flow distributing system
Also include auxiliary overflow valve（9）, the auxiliary overflow valve（9）With the pivot angle reversal valve（2）, hydraulic control one-way valve（6）, pivot angle oil
Cylinder（3）The oil circuit of formation is in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710500559.4A CN107100906A (en) | 2017-06-27 | 2017-06-27 | The flow distributing system of oblique angle sweeper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710500559.4A CN107100906A (en) | 2017-06-27 | 2017-06-27 | The flow distributing system of oblique angle sweeper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107100906A true CN107100906A (en) | 2017-08-29 |
Family
ID=59663899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710500559.4A Pending CN107100906A (en) | 2017-06-27 | 2017-06-27 | The flow distributing system of oblique angle sweeper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107100906A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109185277A (en) * | 2018-06-05 | 2019-01-11 | 辽宁三三工业有限公司 | A kind of shield machine supplies overhead hoist screw machine gate speed control hydraulic system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4410156A1 (en) * | 1994-03-24 | 1995-09-28 | Rexroth Mannesmann Gmbh | Control system for variable output pump |
| CN202182072U (en) * | 2011-07-04 | 2012-04-04 | 宁波弘讯科技股份有限公司 | Proportional pressure control hydraulic system |
| CN204878099U (en) * | 2015-06-23 | 2015-12-16 | 湖北三三重工有限公司 | Every single move and rotation regulation hydraulic system of wind big gun |
| CN106593981A (en) * | 2016-12-15 | 2017-04-26 | 北汽福田汽车股份有限公司 | Sweeping plate lifting hydraulic system, sweeping machine hydraulic system and sweeping machine |
| CN206221404U (en) * | 2016-11-11 | 2017-06-06 | 三一汽车制造有限公司 | Auxiliary hydraulic system and pumping machine |
-
2017
- 2017-06-27 CN CN201710500559.4A patent/CN107100906A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4410156A1 (en) * | 1994-03-24 | 1995-09-28 | Rexroth Mannesmann Gmbh | Control system for variable output pump |
| CN202182072U (en) * | 2011-07-04 | 2012-04-04 | 宁波弘讯科技股份有限公司 | Proportional pressure control hydraulic system |
| CN204878099U (en) * | 2015-06-23 | 2015-12-16 | 湖北三三重工有限公司 | Every single move and rotation regulation hydraulic system of wind big gun |
| CN206221404U (en) * | 2016-11-11 | 2017-06-06 | 三一汽车制造有限公司 | Auxiliary hydraulic system and pumping machine |
| CN106593981A (en) * | 2016-12-15 | 2017-04-26 | 北汽福田汽车股份有限公司 | Sweeping plate lifting hydraulic system, sweeping machine hydraulic system and sweeping machine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109185277A (en) * | 2018-06-05 | 2019-01-11 | 辽宁三三工业有限公司 | A kind of shield machine supplies overhead hoist screw machine gate speed control hydraulic system |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170829 |
|
| RJ01 | Rejection of invention patent application after publication |