CN214884016U - Hydraulic control system integrating floating stabilization module and hydraulic energy regeneration and scraper - Google Patents
Hydraulic control system integrating floating stabilization module and hydraulic energy regeneration and scraper Download PDFInfo
- Publication number
- CN214884016U CN214884016U CN202120464076.5U CN202120464076U CN214884016U CN 214884016 U CN214884016 U CN 214884016U CN 202120464076 U CN202120464076 U CN 202120464076U CN 214884016 U CN214884016 U CN 214884016U
- Authority
- CN
- China
- Prior art keywords
- valve
- hydraulic
- movable arm
- electromagnetic valve
- oil cylinder
- 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.)
- Active
Links
Images
Landscapes
- Fluid-Pressure Circuits (AREA)
Abstract
The utility model discloses an integrated hydraulic control system who floats stable module and hydraulic energy regeneration, including hydraulic tank, hydraulic pump, multiple unit valve, tipping bucket hydro-cylinder, first movable arm hydro-cylinder and second movable arm hydro-cylinder, still include integrated valve and energy storage ware, be provided with first solenoid valve, second solenoid valve, third solenoid valve, relief pressure valve and check valve in the integrated valve; the floating function of the movable arm of the scraper and the function of a stabilizing module of the movable arm of the scraper are realized by simultaneously electrifying the first electromagnetic valve and the second electromagnetic valve and electrifying or losing the third electromagnetic valve; when the scraper is flamed out and is in a power-on state, the fourth electromagnetic valve in the multi-way valve is electrified, hydraulic oil in the rodless cavities of the first movable arm oil cylinder and the second movable arm oil cylinder passes through the one-way valve and the pressure reducing valve to provide a hydraulic oil source for the electromagnetic valves, and the function of reducing the movable arms after the scraper is flamed out is achieved. The utility model discloses reduce the cost of scraper, reduced the pipeline of scraper internal connection, easy to maintain maintains the maintenance.
Description
Technical Field
The utility model relates to a hydraulic control system of scraper, further say that, relate to an integrated hydraulic control system that has scraper function of floating, reduces the swing arm function after stabilizing the module and putting out fire.
Background
The operation working conditions of the scraper are mainly shoveling, transporting and loading operations, namely materials are transported from the A place to the B place, and in the process, a working device needs to be shoveled, lifted, collected, unloaded and lowered; the loading of the materials is carried out at the site A, and then the materials are transported to the site B, and the reciprocating circulation operation is carried out.
In the long-distance transition transportation process of the scraper, the working device needs to be kept at a certain height, and the bucket is in a bucket-collecting state. After the scraper is shoveled and filled with materials, in the transportation process, the scraper bucket of the scraper can shake up and down due to the fact that the road surface is uneven, the whole vehicle shakes along with inertia, and the comfort of a driver in the transportation process is extremely poor. And in the shaking process, materials can be scattered from the bucket due to the shaking of the bucket. In addition, in the transportation process, a rod cavity and a rodless cavity of the movable arm hydraulic cylinder controlled by the multi-way valve are always in a closed state, the pressure of the rod cavity and the rodless cavity in the closed state can be changed violently due to the shaking generated in the transportation process, repeated impact is caused due to the violent change of the pressure, and the whole machine generates corresponding vibration and noise. This vibration and noise becomes greater as the speed of transport of the scraper increases.
In order to solve the problems of vibration and noise of the scraper in the transportation process, avoid excessive materials from being scattered and increase the comfort of a driver, a stable module system is adopted in the prior art to be communicated with a large cavity and a small cavity of a movable arm oil cylinder, the large cavity of the movable arm oil cylinder is communicated with an energy accumulator through the control of the stable module valve, and the small cavity is communicated with a hydraulic oil tank. When the pressure of the hydraulic oil cylinder is increased, the energy accumulator serves as a hydraulic oil source to provide hydraulic oil, energy change caused by pressure change is absorbed, and accordingly vibration and noise of the scraper in the transportation process are reduced.
In addition, in the existing mining machinery industry, when the whole machine is flamed out, if the movable arm is still at a high position, the engine needs to be started to lower the movable arm, and energy is wasted. In another case, when the engine cannot be started, the boom is still in the high position, and the boom is lowered to the transport position and then the vehicle is towed to the maintenance position for maintenance. On one hand, the scraper needs to save energy, and on the other hand, the function of reducing the boom during flameout is realized as far as possible.
In addition, the road surface in the existing mining machinery industry is uneven, scattered materials on the road surface need to be piled up and transferred, and waste is avoided. If the scraper bowl of scraper is set level, nevertheless because of road surface the place ahead is too high, the tank filler door can arouse scraper front wheel to rise the wheel, for avoiding this kind of scraper to rise the wheel because of the unsmooth tire that causes in road surface under the windrow operating mode, the scraper bowl that needs scraper floats along with the height on road surface, that is to say, needs scraper to realize the function of floating.
In the current mining machinery trade, the scraper faces very abominable operating mode environment, and ground unevenness causes the scraper to shake and noise very greatly in going and the transportation, and the ground transportation material at unevenness can cause the scraper bucket to spill the material seriously simultaneously, can not satisfy the requirement to scraper transportation travelling comfort, and current scraper receives the tunnel influence in addition, and the complete machine height of scraper is lower, causes the scraper space less, is difficult for maintaining.
SUMMERY OF THE UTILITY MODEL
The utility model provides an integrated hydraulic control system who floats stable module and hydraulic pressure ability regeneration has overcome among the prior art scraper vibrations and noise big in the transportation, spills the material serious and reduce the not energy-conserving problem of swing arm after flame-out.
The utility model discloses an integrated hydraulic control system who floats stable module and hydraulic energy regeneration, including hydraulic tank, hydraulic pump, multiple unit valve, tipping bucket hydro-cylinder, swing arm hydro-cylinder and swing arm hydro-cylinder, the multiple unit valve with tipping bucket hydro-cylinder, swing arm hydro-cylinder, oil feed flow path and oil return flow path are connected, still include integrated valve and energy storage ware, be provided with first solenoid valve, second solenoid valve, third solenoid valve, relief pressure valve and check valve in the integrated valve;
the second electromagnetic valve and the third electromagnetic valve are simultaneously electrified, and the first electromagnetic valve is electrified, so that the rod cavities and the rodless cavities of the first movable arm oil cylinder and the second movable arm oil cylinder are communicated and are simultaneously communicated with an oil return flow path, and the floating function of the movable arm of the scraper is realized;
the first electromagnetic valve and the third electromagnetic valve are simultaneously powered on, and the second electromagnetic valve is powered off, so that the rod cavities of the first movable arm oil cylinder and the second movable arm oil cylinder are communicated with the oil return flow path, and the rodless cavities of the first movable arm oil cylinder and the second movable arm oil cylinder are communicated with the energy accumulator, and the function of a stabilizing module of the scraper movable arm is realized;
when the scraper is flamed out and is in a power-on state, the fourth electromagnetic valve in the multi-way valve is electrified, hydraulic oil in the rodless cavities of the first movable arm oil cylinder and the second movable arm oil cylinder passes through the one-way valve and the pressure reducing valve to provide a hydraulic oil source for the fourth electromagnetic valve, so that the reversing valve in the multi-way valve is reversed, and the function of reducing the movable arm after the scraper is flamed out is realized.
Preferably, a safety valve is arranged in the integrated valve, an oil inlet of the safety valve is connected with the energy accumulator, and an oil outlet of the safety valve is connected with the oil return flow path.
Preferably, an oil return filter is provided in the oil return flow path.
Preferably, the hydraulic pump is a duplex quantitative hydraulic pump, hydraulic oil flows into the multi-way valve or the steering valve through the hydraulic pump, and the hydraulic oil flowing through the steering valve enters the steering system.
Preferably, the electromagnetic valve in the steering valve is electrified, and hydraulic oil in the rodless cavities of the first boom cylinder and the second boom cylinder provides a hydraulic oil source for the electromagnetic valve in the steering valve through the one-way valve and the pressure reducing valve, so that the reversing valve core in the steering valve is opened, and the steering is returned to the normal position.
Preferably, the device further comprises a pressure measuring joint connected with the energy accumulator.
Preferably, an oil inlet filter is arranged on an oil inlet flow path between the hydraulic pump and the multi-way valve.
Preferably, the accumulator is a piston type.
Preferably, the accumulator is a single accumulator, or an accumulator group consisting of two or more accumulators.
The utility model also provides a carry scraper, include integrated hydraulic control system who floats stable module and hydraulic pressure energy regeneration.
Compared with the prior art, the utility model has the advantages of it is following:
(1) the utility model realizes the floating function, the module stabilizing function and the functions of descending the movable arm and turning back in the engine flameout state of the scraper through an integrated valve group, and reduces the whole cost of the scraper under the requirement of energy saving of the scraper;
(2) the utility model integrates the floating function, the stabilizing module and the function of lowering the movable arm after flameout on one valve, reduces the pipelines connected inside the scraper, and is easy to maintain;
(3) the utility model discloses reduced vibrations and the noise that the scraper produced in the transportation, improved the transportation travelling comfort of scraper.
Drawings
FIG. 1 is a schematic diagram of a hydraulic system of the present invention;
fig. 2 is a schematic diagram of an integrated valve.
Reference numerals: 1. a hydraulic oil tank; 2. a quantitative hydraulic pump; 3. a steering valve; 4. a multi-way valve; 5. a tipping oil cylinder; 6. A first boom cylinder; 7. a second boom cylinder; 8. an integration valve; 9. an accumulator; 10. an oil return filter; 11. a first solenoid valve; 12. a second solenoid valve; 13. a third electromagnetic valve; 14. a safety valve; 15. a pressure reducing valve; 16. a fourth solenoid valve; 17. a diverter valve; 18. a one-way valve.
Detailed Description
The invention is further described with reference to the following examples and the accompanying drawings.
As shown in fig. 1, the hydraulic control system of the present invention includes a hydraulic oil tank 1, a quantitative hydraulic pump 2, a steering valve 3, a multi-way valve 4, a skip bucket oil cylinder 5, a first movable arm oil cylinder 6, a second movable arm oil cylinder 7, an integrated valve 8, an energy accumulator 9 and an oil return filter 10, wherein the quantitative hydraulic pump 2 is a duplex quantitative hydraulic pump, is driven by a transmission case, and provides hydraulic energy for the quantitative hydraulic system; the hydraulic oil provided by the quantitative hydraulic pump 2 flows through the multi-way valve 4 or the steering valve 3, the flow direction of the hydraulic oil is controlled by the multi-way valve 4 or the steering valve 3, and the hydraulic oil flows to the hydraulic oil cylinder to realize the lifting, descending, tipping, bucket collecting actions or steering actions of the scraper or directly flows back to the hydraulic oil tank 1 without operation. The accumulator 9 is preferably of a piston type construction, and the accumulator 9 may be a single accumulator or an accumulator battery of two or more accumulators.
The integrated valve 8 is an integrated functional valve block, integrates the floating function of the scraper, stabilizes the module, reduces the function of a movable arm after flameout, and reduces the layout of pipelines. Referring to fig. 2, a first electromagnetic valve 11, a second electromagnetic valve 12, a third electromagnetic valve 13, a safety valve 14, a pressure reducing valve 15 and a check valve 18 are integrated in the integration valve 8, and the pressure reducing valve 15 is a constant-differential pressure reducing valve. The large cavities (namely rodless cavities) and the small cavities (namely rod cavities) of the first movable arm oil cylinder 6 and the second movable arm oil cylinder 7 are communicated and communicated with the hydraulic oil tank 1 by controlling the third electromagnetic valve 13 and the second electromagnetic valve 12 in the integrated valve 8 to be electrified, so that the movable arm of the scraper can follow up along with the unevenness of the road surface, and the movable arm floating function of the scraper is realized. The third electromagnetic valve 13 and the first electromagnetic valve 11 in the integrated valve 8 are controlled to be electrified, so that small cavities of the first movable arm oil cylinder 6 and the second movable arm oil cylinder 7 are communicated with the hydraulic oil tank 1, large cavities of the first movable arm oil cylinder 6 and the second movable arm oil cylinder 7 are communicated with the energy accumulator 9, the energy accumulator 9 can reduce pressure impact caused by vibration generated by the scraper in the transportation process, and the function of the scraper in a stable module in the transportation process is achieved.
Regeneration of the hydraulic energy source is achieved by controlling the pressure reducing valve 15 in the integration valve 8. When the engine is shut down and a power switch is turned on, a battery provides power to turn on the fourth electromagnetic valve 16 integrated in the multi-way valve 4, and then pressure oil in the large cavities of the first movable arm oil cylinder 6 and the second movable arm oil cylinder 7 is used as a power source to provide a hydraulic oil source for the fourth electromagnetic valve 16, so that the fourth electromagnetic valve 16 controls the reversing valve 17 in the multi-way valve 4 to realize the function of descending the movable arm. In addition, the pressure reducing valve 15 can also provide a hydraulic oil source to an electromagnetic valve integrated in the steering valve 3, and the electromagnetic valve controls to open a reversing valve core of the steering valve 3 to enable the steering to be corrected.
The utility model discloses a hydraulic control system during operation, hydraulic oil are by quantitative hydraulic pump 2 from hydraulic tank 1 in the suction, flow into diverter valve 3 and multiple unit valve 4, and the hydraulic oil that flows into diverter valve 3 directly flows into multiple unit valve 4 when the action is not turned to steering system, realizes the double pump confluence, then controls lifting, descending action and the receipts of scraper bowl of whole scraper movable arm through controlling the solenoid valve in the multiple unit valve 4 and fight, the tipping bucket action.
Wherein, the control function logics of the first electromagnetic valve 11, the second electromagnetic valve 12 and the third electromagnetic valve 13 are shown as the following table:
represents a loss of power to the solenoid valve, and represents a gain of power to the solenoid valve
The working process of the floating function is as follows:
when the second electromagnetic valve 12 and the third electromagnetic valve 13 integrated in the integration valve 8 are powered on at the same time and the first electromagnetic valve 11 is powered off, the rod cavities and the rodless cavities of the first movable arm oil cylinder 6 and the second movable arm oil cylinder 7 are communicated and simultaneously communicated with an oil return path, and the movable arm of the scraper can realize the floating function along with the unevenness of the ground.
The functional working process of the stabilizing module is as follows:
when the first electromagnetic valve 11 and the third electromagnetic valve 13 integrated in the integrated valve 8 are powered on and the second electromagnetic valve 12 is powered off, the rod cavities of the first boom cylinder 6 and the second boom cylinder 7 are communicated with the oil return path, the rodless cavities of the first boom cylinder 6 and the second boom cylinder 7 are communicated with the energy accumulator 9, the energy accumulator 9 is utilized to absorb pressure impact and fluctuation of a boom and a bucket caused by uneven road surface, and the function of stabilizing the module of the scraper in the running process is realized. And the integrated valve 8 is internally provided with a safety valve 14, an oil inlet of the safety valve 14 is connected with the energy accumulator 9, and an oil outlet of the safety valve 14 is connected with an oil return flow path, so that the pressure value in the hydraulic control system is ensured to be in a safe state, and the risk of infinite pressure increase caused by the impact on the scraper in the running process can be avoided. In other embodiments, the energy accumulator 9 may further be connected to a pressure measuring connector, and the pressure measuring connector is externally connected to a pressure instrument, so as to detect a pressure value in the hydraulic control system.
The working process of the movable arm function is reduced by flameout:
when the scraper is flamed out and is in a power-on state, the handle for controlling the boom to descend can be operated, so that the fourth electromagnetic valve 16 in the multi-way valve 4 is electrified, the reversing valve 17 in the multi-way valve 4 is reversed, at the moment, the pilot oil source of the fourth electromagnetic valve 16 is provided by the pressure oil of the rodless cavities of the first boom oil cylinder 6 and the second boom oil cylinder 7 through the one-way valve 18 and the pressure reducing valve 15, the reversing valve 17 is pushed to be reversed, the first boom oil cylinder 6 and the second boom oil cylinder 7 can descend freely, and the functions of flameout and reducing the boom are achieved.
The above-described embodiments are only preferred embodiments of the present invention, and it should be noted that: for those skilled in the art, without departing from the principle of the present invention, several modifications and equivalent substitutions can be made, and these modifications and equivalent substitutions do not depart from the technical scope of the present invention.
Claims (10)
1. The utility model provides an integrated hydraulic control system who floats stable module and hydraulic energy regeneration which characterized in that: the hydraulic dump truck comprises a hydraulic oil tank (1), a hydraulic pump (2), a multi-way valve (4), a dump bucket oil cylinder (5), a first movable arm oil cylinder (6) and a second movable arm oil cylinder (7), wherein the multi-way valve (4) is connected with the dump bucket oil cylinder (5), the first movable arm oil cylinder (6), the second movable arm oil cylinder (7), an oil inlet flow path and an oil return flow path, and further comprises an integrated valve (8) and an energy accumulator (9), wherein a first electromagnetic valve (11), a second electromagnetic valve (12), a third electromagnetic valve (13), a pressure reducing valve (15) and a one-way valve (18) are arranged in the integrated valve (8);
the energy accumulator (9) is connected with a first electromagnetic valve (11), the first electromagnetic valve (11), a second electromagnetic valve (12) and a third electromagnetic valve (13) are sequentially connected, and the third electromagnetic valve (13) is connected with an oil return flow path;
the rod cavity of the first movable arm oil cylinder (6) is connected with the rod cavity of the second movable arm oil cylinder (7), and the rod cavity of the first movable arm oil cylinder (6) and the rod cavity of the second movable arm oil cylinder (7) are both connected with a connecting oil circuit between the second electromagnetic valve (12) and the third electromagnetic valve (13);
the rodless cavity of the first movable arm oil cylinder (6) is connected with the rodless cavity of the second movable arm oil cylinder (7), and the rodless cavity of the first movable arm oil cylinder (6) and the rodless cavity of the second movable arm oil cylinder (7) are both connected with a connecting oil circuit between the first electromagnetic valve (11) and the second electromagnetic valve (12); a connecting pipeline between the first electromagnetic valve (11) and the second electromagnetic valve (12) is connected with a one-way valve (18), the one-way valve (18) is connected with a pressure reducing valve (15), and the pressure reducing valve (15) is connected with a fourth electromagnetic valve (16) in the multi-way valve (4); the fourth electromagnetic valve (16) can control a reversing valve (17) in the multi-way valve (4) to reverse.
2. The integrated floating stabilization module and hydraulic control system for hydraulic energy regeneration of claim 1, wherein: a safety valve (14) is arranged in the integrated valve (8), an oil inlet of the safety valve (14) is connected with the energy accumulator (9), and an oil outlet of the safety valve (14) is connected with the oil return flow path.
3. The integrated floating stabilization module and hydraulic control system for hydraulic energy regeneration of claim 2, wherein: and an oil return filter (10) is arranged on the oil return path.
4. The integrated floating stabilizer module and hydraulic control system for hydraulic energy regeneration of any one of claims 1-3, wherein: the hydraulic pump (2) is a duplex quantitative hydraulic pump, hydraulic oil flows into the multi-way valve (4) or the steering valve (3) through the hydraulic pump (2), and the hydraulic oil flowing through the steering valve (3) enters a steering system.
5. The integrated floating stabilization module and hydraulic control system of hydraulic energy regeneration of claim 4, wherein: the electromagnetic valve in the steering valve (3) is electrified, hydraulic oil in the rodless cavities of the first movable arm oil cylinder (6) and the second movable arm oil cylinder (7) provides a hydraulic oil source for the electromagnetic valve in the steering valve (3) through the one-way valve (18) and the pressure reducing valve (15), so that a reversing valve core in the steering valve (3) is opened, and steering is returned to the positive direction.
6. The integrated floating stabilization module and hydraulic control system of hydraulic energy regeneration of claim 5, wherein: the device also comprises a pressure measuring joint connected with the energy accumulator (9).
7. The integrated floating stabilization module and hydraulic control system of hydraulic energy regeneration of claim 6, wherein: and an oil inlet filter is arranged on an oil inlet flow path between the hydraulic pump (2) and the multi-way valve (4).
8. The integrated floating stabilization module and hydraulic control system for hydraulic energy regeneration of claim 7, wherein: the energy accumulator (9) is of a piston type.
9. The integrated floating stabilization module and hydraulic control system for hydraulic energy regeneration of claim 8, wherein: the energy accumulator (9) is a single energy accumulator or an energy accumulator group consisting of two or more energy accumulators.
10. A scraper, characterized in that: a hydraulic control system comprising the integrated floating stabilizer module of any one of claims 1-9 and hydraulic energy regeneration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120464076.5U CN214884016U (en) | 2021-03-03 | 2021-03-03 | Hydraulic control system integrating floating stabilization module and hydraulic energy regeneration and scraper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120464076.5U CN214884016U (en) | 2021-03-03 | 2021-03-03 | Hydraulic control system integrating floating stabilization module and hydraulic energy regeneration and scraper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214884016U true CN214884016U (en) | 2021-11-26 |
Family
ID=78856362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120464076.5U Active CN214884016U (en) | 2021-03-03 | 2021-03-03 | Hydraulic control system integrating floating stabilization module and hydraulic energy regeneration and scraper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214884016U (en) |
-
2021
- 2021-03-03 CN CN202120464076.5U patent/CN214884016U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105134695B (en) | A kind of automatically controlled opening and closing core hydraulic system and engineering machinery | |
| CN104011406B (en) | Hydraulic system | |
| CN104929183B (en) | A kind of loader turned to based on Flow amplification determines variable delivery hydraulic system | |
| CN101370990B (en) | Method for controlling a hydraulic cylinder and control system for a work machine | |
| US20120151904A1 (en) | Hydraulic control system having energy recovery | |
| US20130318955A1 (en) | Electro-hydraulic system for recovering and reusing potential energy | |
| CN104011401B (en) | There is the closed-loop hydraulic system of energy regenerating | |
| US8973358B2 (en) | Closed-loop hydraulic system having force modulation | |
| US20130098013A1 (en) | Closed-loop system having multi-circuit flow sharing | |
| CN104093994B (en) | Hydraulic driving system | |
| CN104011400A (en) | Hydraulic closed circuit drive device | |
| CN104011402A (en) | Hydraulic system | |
| US20140165549A1 (en) | Hydraulic system having multiple closed loop circuits | |
| CN101858091B (en) | Quantitative pump hydraulic control system of working mechanism of underground scraper | |
| CN103522929A (en) | Fixed delivery and variable delivery hydraulic system of mining dump truck | |
| JPWO2013146140A1 (en) | Transport vehicle | |
| US20130081382A1 (en) | Regeneration configuration for closed-loop hydraulic systems | |
| CN202827257U (en) | Hydraulic lifting control system for mine self-discharging vehicle and mine self-discharging vehicle | |
| JP2011001744A (en) | Hydraulic control unit of construction machine | |
| JP2011220356A (en) | Hydraulic control device of construction machine | |
| CN104405006B (en) | Loading machine semi-variety hydraulic system | |
| CN112726693A (en) | Loader work vibration reduction control system and fuzzy control method | |
| CN214884016U (en) | Hydraulic control system integrating floating stabilization module and hydraulic energy regeneration and scraper | |
| US20130098463A1 (en) | Meterless hydraulic system having sharing and combining functionality | |
| CN206486917U (en) | Hydraulic system on machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |