CN203093089U - Hydraulic control system of trash compactor and trash compactor - Google Patents
Hydraulic control system of trash compactor and trash compactor Download PDFInfo
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- CN203093089U CN203093089U CN 201320075898 CN201320075898U CN203093089U CN 203093089 U CN203093089 U CN 203093089U CN 201320075898 CN201320075898 CN 201320075898 CN 201320075898 U CN201320075898 U CN 201320075898U CN 203093089 U CN203093089 U CN 203093089U
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- hydraulic control
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Abstract
The utility model discloses a hydraulic control system of a trash compactor. The hydraulic control system of the trash compactor comprises an oil box, a variable pump, a reversing valve and a compression oil cylinder. An oil inlet and an oil outlet of the variable pump are connected with an oil inlet of the oil box and an oil inlet of the reversing valve respectively, a first working oil opening and a second working oil opening of the reversing valve are communicated with a rodless cavity and a rod cavity of the compression oil cylinder respectively, and an oil returning opening of the reversing valve is communicated with the oil box. The variable pump is provided with a tilting tray and a variable piston cylinder, the hydraulic control system further comprises a switch valve and a damper, a piston rod of the variable piston cylinder is connected with the tilting tray, a rod cavity of the variable piston cylinder is communicated with a pipeline between the oil outlet of the variable pump and the oil inlet of the reversing valve, and a rodless cavity and an oil outlet of the switch valve are communicated with the oil box. An oil inlet of the switch valve is communicated with the pipeline between the oil outlet of the variable pump and the oil inlet of the reversing valve, and the damper is arranged on a pipeline between the rodless cavity of the variable piston cylinder and the oil box. The utility model further discloses the trash compactor. The hydraulic control system conducts low-pressure small-flow dry running under the standby working condition, and is basically free of overflow loss.
Description
Technical field
The utility model relates to the environmental sanitation mechanical field, particularly, relates to a kind of hydraulic control system and trash compactor of trash compactor.
Background technology
The major function of trash compactor is to adopt the precompressed mode loose rubbish to be compressed into the highdensity block of normal volume by compression cylinder drive ram device, make garbage dewatering and volume reduces, waste transportation to garbage disposal plant is finally handled to make things convenient for cram packer.Trash compactor is being brought into play important effect in the domestic rubbish disposal in city.Trash compactor mainly is made up of frame, rubbish casing, atomizing de-dusting deodoration system, blowdown purging system, indenter device, hydraulic control system etc., wherein, hydraulic control system is the Power Drive Unit of trash compactor, hydraulic control system mainly comprises hydraulic pump and drive motors, fuel tank and annex thereof, various control valve, compression cylinder etc., its major function is that hydraulic pump provides the fluid of certain pressure and flow to compression cylinder, to drive and the motion of control compression cylinder drive indenter device, realize rubbish is compressed.
The hydraulic control system of trash compactor is divided into standby operating mode and work operating mode by operating condition, and the work operating mode is divided into operating modes such as F.F., worker are advanced, pressurization, pressurize, release, snap back again.Under different operating modes, the required pressure of executing agency's (mainly being compression cylinder) is different with flow.
As shown in Figure 1, the hydraulic control system of the trash compactor of prior art comprises fuel tank 1, variable pump 2, reversal valve 3 and compression cylinder 4, the oil-in of variable pump 2 is communicated with fuel tank 1, the oil-in of the oil-out of variable pump 2 and reversal valve 3 is communicated with, the oil return opening of reversal valve 3 is communicated with fuel tank 1, first actuator port of reversal valve 3 is communicated with the rodless cavity of compression cylinder 4, and second actuator port of reversal valve 3 is communicated with the rod chamber of compression cylinder 4.Wherein, variable pump 2 is a constant pressure variable displacement pump.When hydraulic control system pressure reached setting pressure, the flow of variable pump 2 outputs can reduce automatically, to adapt to the requirement of trash compactor load.Under the standby operating mode, it is dry running, because the pressure of hydraulic control system is lower, do not reach the pressure requirement of the flow of regulated variable pump 2, make the swash plate 21 of variable pump 2 remain on and put on the horn shape attitude, variable pump 2 output flows are bigger, have bigger no load discharge, thereby system exists unnecessary flow waste and energy consumption, and the noise that produces during dry running is bigger.Therefore, the hydraulic control system operating efficiency of trash compactor is lower, and energy consumption and operating cost are all higher, are unfavorable for energy-saving and emission-reduction.
The utility model content
The purpose of this utility model provides a kind of hydraulic control system and trash compactor of trash compactor, this hydraulic control system can be implemented in the dry running and the flow under the work operating mode of low pressure low discharge under the standby operating mode and regulate automatically, hydraulic control system does not have spill losses substantially, improve system works efficient, reduced energy consumption, noise and operating cost.
To achieve these goals, one side of the present utility model provides a kind of hydraulic control system of trash compactor, this hydraulic control system comprises fuel tank, variable pump, reversal valve and compression cylinder, the oil-in of described variable pump is communicated with described fuel tank, the oil-out of described variable pump is connected with the oil-in of described reversal valve, the oil return opening of described reversal valve is communicated with described fuel tank, first actuator port of described reversal valve is communicated with the rodless cavity of described compression cylinder, second actuator port of described reversal valve is communicated with the rod chamber of described compression cylinder, wherein, described variable pump has swash plate and variable piston cylinder, described hydraulic control system also comprises switch valve and damper, the piston rod of described variable piston cylinder is connected with described swash plate, pipeline connection between the oil-in of the rod chamber of described variable piston cylinder and the oil-out of described variable pump and described reversal valve, the rodless cavity of described variable piston cylinder is communicated with the oil-out of described switch valve, pipeline connection between the oil-in of the oil-in of described switch valve and the oil-out of described variable pump and described reversal valve, the rodless cavity of described variable piston cylinder is communicated with described fuel tank, and described damper is arranged on the rodless cavity and the pipeline between the described fuel tank of described variable piston cylinder.
Preferably, described switch valve is a solenoid directional control valve.
Preferably, be provided with spring in the rod chamber of described variable piston cylinder.
Preferably, described hydraulic control system also comprises constant pressure valve, and this constant pressure valve is in parallel with described switch valve, and the oil-out of described variable pump can be communicated with the rodless cavity of described variable piston cylinder by described constant pressure valve.
Preferably, described hydraulic control system also comprises pressure tap, and this pressure tap is arranged on the pipeline between the oil-in of the oil-out of described variable pump and described reversal valve.
Preferably, described switch valve is electric ratio constant pressure valve.
Preferably, described hydraulic control system also comprises overflow valve, the pipeline connection between the oil-in of the oil-in of this overflow valve and the oil-out of described variable pump and described reversal valve, and the oil-out of described overflow valve is communicated with described fuel tank.
Preferably, the setting pressure of described overflow valve is greater than the setting pressure of described constant pressure valve.
Preferably, two described variable pumps, two described variable piston cylinders, two described switch valves and two described dampers have been arranged in parallel between the oil-in of described fuel tank and described reversal valve.
Of the present utility modelly provide a kind of trash compactor on the other hand, this trash compactor has the hydraulic control system of trash compactor recited above.
Pass through technique scheme, hydraulic control system for trash compactor of the present utility model, under the standby operating mode (being dry running), reversal valve is in meta, the compression cylinder attonity, switch valve is in open mode, and the fluid that variable pump pumps out is by in the rodless cavity of switch valve entering variable piston cylinder.Owing to be provided with damper between the rodless cavity of variable piston cylinder and the fuel tank, set up certain pressure in the rodless cavity of variable piston cylinder, thereby the piston rod that promotes the variable piston cylinder stretches out, move near the position of zero drift angle with the swash plate that drives variable pump, under the rod chamber of variable piston cylinder and the pressure effect in the rodless cavity, be in poised state up to piston rod, this moment piston rod the overhang maximum, swash plate is near the position of zero drift angle, the output flow minimum of variable pump, pressure is minimum, only export the interior vent flow of controlling flow (promptly being back to the flow of fuel tank through damper) and keeping the variable pump self-lubricating from the rodless cavity of variable piston cylinder, make hydraulic control system can be under the standby operating mode dry running of low pressure low discharge, substantially can not produce the waste of spill losses and flow, improved system works efficient, reduced the energy consumption under the standby operating mode, noise and operating cost, reduce the noise that dry running variations per hour pump produces, be specially adapted to the hydraulic system of high-pressure high-flow, have obvious energy-saving effect.
Under the work operating mode, switch valve is in closed condition, and variable pump can be regulated the position of swash plate by the variable piston cylinder according to load variations, thus the output flow of regulated variable pump, to be adapted to the operating mode demand of trash compactor.
Other feature and advantage of the present utility model will partly be described in detail in the specific embodiment subsequently.
Description of drawings
Accompanying drawing is to be used to provide further understanding of the present utility model, and constitutes the part of specification, is used from explanation the utility model with the following specific embodiment one, but does not constitute restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the schematic diagram of hydraulic control system of the trash compactor of prior art;
Fig. 2 is the schematic diagram of hydraulic control system of the trash compactor of first embodiment of the present utility model;
Fig. 3 is the schematic diagram of hydraulic control system of the trash compactor of second embodiment of the present utility model; And
Fig. 4 is the schematic diagram of hydraulic control system of the trash compactor of the 3rd embodiment of the present utility model.
Description of reference numerals
1 fuel tank, 2 variable pumps
3 reversal valves, 4 compression cylinders
5 overflow valves, 6 switch valves
7 dampers, 8 constant pressure valves
9 pressure tap
21 swash plates, 22 variable piston cylinders
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is elaborated.Should be understood that the specific embodiment described herein only is used for description and interpretation the utility model, is not limited to the utility model.
As Fig. 2-shown in Figure 4, one side of the present utility model provides a kind of hydraulic control system of trash compactor, this hydraulic control system comprises fuel tank 1, variable pump 2, reversal valve 3 and compression cylinder 4, the oil-in of described variable pump 2 is communicated with described fuel tank 1, the oil-out of described variable pump 2 is connected with the oil-in of described reversal valve 3, the oil return opening of described reversal valve 3 is communicated with described fuel tank 1, first actuator port of described reversal valve 3 is communicated with the rodless cavity of described compression cylinder 4, second actuator port of described reversal valve 3 is communicated with the rod chamber of described compression cylinder 4, wherein, described variable pump 2 has swash plate 21 and variable piston cylinder 22, described hydraulic control system also comprises switch valve 6 and damper 7, the piston rod of described variable piston cylinder 22 is connected with described swash plate 21, pipeline connection between the oil-in of the oil-out of the rod chamber of described variable piston cylinder 22 and described variable pump 2 and described reversal valve 3, the rodless cavity of described variable piston cylinder 22 is communicated with the oil-out of described switch valve 6, pipeline connection between the oil-in of the oil-out of the oil-in of described switch valve 6 and described variable pump 2 and described reversal valve 3, the rodless cavity of described variable piston cylinder 22 is communicated with described fuel tank 1, and described damper 7 is arranged on the rodless cavity and the pipeline between the described fuel tank 1 of described variable piston cylinder 22.
Hydraulic control system for trash compactor of the present utility model, under the standby operating mode (being dry running), reversal valve 3 is in meta, compression cylinder 4 attonitys, switch valve 6 is in open mode, and the fluid that variable pump 2 pumps out is by in the rodless cavity of switch valve 6 entering variable piston cylinders 22.Owing to be provided with damper 7 between the rodless cavity of variable piston cylinder 22 and the fuel tank 1, set up certain pressure in the rodless cavity of variable piston cylinder 22, thereby the piston rod that promotes variable piston cylinder 22 stretches out, move near the position of zero drift angle with the swash plate 21 that drives variable pump 2, under the rod chamber of variable piston cylinder 22 and the pressure effect in the rodless cavity, be in poised state up to piston rod, this moment piston rod the overhang maximum, swash plate 21 is near the position of zero drift angle, the output flow minimum of variable pump 2, pressure is minimum, only export the interior vent flow of controlling flow (promptly being back to the flow of fuel tank 1 through damper 7) and keeping variable pump 2 self-lubricatings from the rodless cavity of variable piston cylinder 22, make hydraulic control system can be under the standby operating mode dry running of low pressure low discharge, substantially can not produce the waste of spill losses and flow, the heat producing losses of minimizing system, improved system works efficient, reduced the energy consumption under the standby operating mode, noise and operating cost, reduce the noise that dry running variations per hour pump 2 produces, be specially adapted to the hydraulic system of high-pressure high-flow, have obvious energy-saving effect.
Under the work operating mode of varying load, switch valve 6 is in closed condition, and variable pump 2 can be regulated the position of swash plate 21 by variable piston cylinder 22 according to load variations, thus the output flow of regulated variable pump 2, to be adapted to the operating mode demand of trash compactor.
In order to guarantee that damper 7 produces certain back pressure, can be back to fuel tank 1 with the fluid in the rodless cavity of variations per hour piston cylinder 22.With reference to figure 2-Fig. 4, on the rodless cavity of variable piston cylinder 22 and the pipeline between the fuel tank 1, damper 7 is set, thereby can in the rodless cavity of variable piston cylinder 22, set up certain pressure under the standby operating mode, change the output flow of variable pump 2 to promote piston rod movement.In addition, the fluid in the rodless cavity of variable piston cylinder 22 can be back to fuel tank 1 by damper 7, makes the piston rod of variable piston cylinder 22 freely to stretch.
Various types of valves that modes such as switch valve 6 can adopt manually, hydraulic pressure are controlled are as long as can realize open and close function.For the convenience of operating and controlling, with reference to figure 2-Fig. 4, preferably, described switch valve 6 is a solenoid directional control valve, the bi-bit bi-pass solenoid directional control valve that for example provides in the specific embodiment.So only need press button or give the solenoid directional control valve signal of telecommunication by the PLC control program in operating room, just can realize the opening and closing of switch valve 6, easy to operate, reaction in time.
In order to make the swash plate 21 of variable pump 2 reset,, preferably, be provided with spring in the rod chamber of described variable piston cylinder 22 as Fig. 2-shown in Figure 4.Spring has certain precompression when being installed in the rod chamber of variable piston cylinder 22, the piston of variable piston cylinder 22 moves under the precompression effect of spring and is returned to initial position, thereby the piston rod of variable piston cylinder 22 drives the swash plate 21 of variable pump 2 and is returned to initial position, at this moment the discharge capacity maximum of variable pump 2.
Under the standby operating mode, the stressing conditions of variable piston cylinder 22 is: P * A
1+ F ≈ P * A
2, wherein, P is the pressure of hydraulic control system, F is the precompression of spring, A
1Be the sectional area of rod chamber, A
2Be the sectional area of rodless cavity, A
1＜A
2, P ≈ F/(A then
2-A
1), the pressure P of hydraulic control system depends on precompression F and the rodless cavity of variable piston cylinder 22 and the area A of rod chamber of the spring of variable piston cylinder 22
2, A
1Because the main effect of the spring of variable piston cylinder 22 is that the swash plate of variable pump 2 21 is resetted, and can select the less spring of precompression can satisfy user demand, so precompression F is less relatively, thereby the system pressure P under the standby operating mode is also less.
As shown in Figure 2, according to first embodiment of the present utility model, preferably, described hydraulic control system also comprises constant pressure valve 8, this constant pressure valve 8 is in parallel with described switch valve 6, and the oil-out of described variable pump 2 can be communicated with the rodless cavity of described variable piston cylinder 22 by described constant pressure valve 8.Under the work operating mode, reversal valve 3 is in left side position or right position, and switch valve 6 cuts out, and compression cylinder 4 action takes place and makes piston rod stretch out or withdraw.The rod chamber of variable piston cylinder 22 is communicated with the oil-out of variable pump 2, thereby the piston of variable piston cylinder 22 moves right under the precompression effect of rod chamber pressure and spring, the withdrawal of the piston rod of variable piston cylinder 22 makes the drift angle of swash plate 21 of variable pump 2 constantly increase, the output flow of variable pump 2 constantly increases, and this moment, compression cylinder 4 was in the operating mode of F.F. or snap back.
When the pressure of hydraulic control system reaches the setting pressure of constant pressure valve 8 along with the increase of external loading, constant pressure valve 8 is opened, the oil-out of variable pump 2 is communicated with the rodless cavity of variable piston cylinder 22 by constant pressure valve 8, pressure in the rodless cavity of this variations per hour piston cylinder 22 constantly rises, the piston of variable piston cylinder 22 is to left movement, final variables piston cylinder 22 reaches poised state and no longer moves, make the drift angle of swash plate 21 of variable pump 2 keep certain, variable pump 2 keeps certain output flow, to be adapted to the demand of external loading, thereby flow to the fluid of compression cylinder 4 certain pressures, this pressure equals the setting pressure of constant pressure valve 8, and this moment, compression cylinder 4 was in that the worker advances or the operating mode of pressurize.In the entire work process, overflow phenomena does not take place in hydraulic control system, so system do not have spill losses substantially, realizes the constant voltage output of variable pump, and has reduced system energy loss and operating cost, has improved system works efficient.
As shown in Figure 3, according to second embodiment of the present utility model, preferably, described switch valve 6 is electric ratio constant pressure valve.Electricity ratio constant pressure valve is as the combination of solenoid directional control valve and constant pressure valve 8, can realize the auto-switch function of solenoid directional control valve, can realize the function of the constant voltage output of constant pressure valve 8 again, can the step-less adjustment constant voltage force value of output, and it is simple in structure, performance is better, the setting that reduces system element, pipeline be connected.
Output pressure for convenience of detection variable pump 2, as Fig. 2-shown in Figure 4, preferably, described hydraulic control system also comprises pressure tap 9, this pressure tap 9 is arranged on the pipeline between the oil-in of the oil-out of described variable pump 2 and described reversal valve 3, thereby convenience is the output pressure of measurand pump 2 at any time, in time understands the running status of whole system, to find system exception and fault etc. in time.
In order to guarantee the safe operation of whole hydraulic control system, as Fig. 2-shown in Figure 4, preferably, described hydraulic control system also comprises overflow valve 5, pipeline connection between the oil-in of the oil-out of the oil-in of this overflow valve 5 and described variable pump 2 and described reversal valve 3, the oil-out of described overflow valve 5 is communicated with described fuel tank 1.Overflow valve 5 plays preventing that system pressure is too high as the safety valve of whole hydraulic control system, under the situation that system breaks down, and the effect of overflow release, and can play the effect of avoiding hydraulic shock.
In order to guarantee that variable piston cylinder 22 can realize the adjusting of variable pump 2 output flows, preferably, the setting pressure of described overflow valve 5 is greater than the setting pressure of described constant pressure valve 8.Under the work operating mode, the setting pressure of overflow valve 5 is greater than the setting pressure of constant pressure valve 8, guarantee that fluid can be by in the rodless cavity of constant pressure valve 8 entering variable piston cylinders 22, and can not overflow back fuel tank 1 by overflow valve 5, make the piston of variable piston cylinder 22 to left movement, the swash plate drift angle of variable pump 2 reduces, and the output flow of variable pump 2 reduces, and finishes the adjusting of variable pump 2 output flows.
As shown in Figure 4, according to the 3rd embodiment of the present utility model, preferably, the described switch valve of the described variable piston cylinder of two described variable pumps 2, two 22, two 6, two described dampers 7, constant pressure valve 8 and overflow valves 5 have been arranged in parallel between the oil-in of described fuel tank 1 and described reversal valve 3.Be arranged in parallel two groups of variable pumps 2, variable piston cylinder 22, switch valve 6, damper 7, constant pressure valve 8 and overflow valve 5 in the present embodiment, but the utility model is not limited to two groups, and more groups parts can be set.Every group connected mode is identical with aforesaid mode with operation principle, and the constant pressure valve in every group 8 and overflow valve 5 can be provided with its setting pressure separately, regulates control with the multistage pressure of realizing hydraulic control system.In addition, a plurality of variable pumps 2 are applicable to the hydraulic system of big flow more to compression cylinder 4 fuel feeding.Moreover in the time of can not working if the parts wherein in a group break down, other group can also continue normally to guarantee the long-time continuous of hydraulic control system, operation reliably to compression cylinder 4 fuel feeding.
Of the present utility modelly provide a kind of trash compactor on the other hand, wherein, this trash compactor has the hydraulic control system of trash compactor recited above.Because hydraulic control system of the present utility model can be implemented in the dry running and the flow under the work operating mode of low pressure low discharge under the standby operating mode and regulate automatically, hydraulic control system does not have spill losses substantially, reduced the heat producing losses of system, and the noise during the variable pump dry running reduces, improved the operating efficiency of trash compactor, the energy consumption and the operating cost of trash compactor have been reduced, energy-conserving and environment-protective.
Below describe preferred implementation of the present utility model in conjunction with the accompanying drawings in detail; but; the utility model is not limited to the detail in the above-mentioned embodiment; in technical conceive scope of the present utility model; can carry out multiple simple variant to the technical solution of the utility model, these simple variant all belong to protection domain of the present utility model.
Need to prove in addition, each concrete technical characterictic described in the above-mentioned specific embodiment under reconcilable situation, can make up by any suitable manner, for fear of unnecessary repetition, the utility model is to the explanation no longer separately of various possible compound modes.
In addition, also can make up arbitrarily between the various embodiment of the present utility model, as long as it is without prejudice to thought of the present utility model, it should be considered as content disclosed in the utility model equally.
Claims (10)
1. the hydraulic control system of a trash compactor, this hydraulic control system comprises fuel tank (1), variable pump (2), reversal valve (3) and compression cylinder (4), the oil-in of described variable pump (2) is communicated with described fuel tank (1), the oil-out of described variable pump (2) is connected with the oil-in of described reversal valve (3), the oil return opening of described reversal valve (3) is communicated with described fuel tank (1), first actuator port of described reversal valve (3) is communicated with the rodless cavity of described compression cylinder (4), second actuator port of described reversal valve (3) is communicated with the rod chamber of described compression cylinder (4), it is characterized in that, described variable pump (2) has swash plate (21) and variable piston cylinder (22), described hydraulic control system also comprises switch valve (6) and damper (7), the piston rod of described variable piston cylinder (22) is connected with described swash plate (21), pipeline connection between the oil-in of the oil-out of the rod chamber of described variable piston cylinder (22) and described variable pump (2) and described reversal valve (3), the rodless cavity of described variable piston cylinder (22) is communicated with the oil-out of described switch valve (6), pipeline connection between the oil-in of the oil-out of the oil-in of described switch valve (6) and described variable pump (2) and described reversal valve (3), the rodless cavity of described variable piston cylinder (22) is communicated with described fuel tank (1), and described damper (7) is arranged on the rodless cavity and the pipeline between the described fuel tank (1) of described variable piston cylinder (22).
2. the hydraulic control system of trash compactor according to claim 1 is characterized in that, described switch valve (6) is a solenoid directional control valve.
3. the hydraulic control system of trash compactor according to claim 1 is characterized in that, is provided with spring in the rod chamber of described variable piston cylinder (22).
4. according to the hydraulic control system of any described trash compactor among the claim 1-3, it is characterized in that, described hydraulic control system also comprises constant pressure valve (8), this constant pressure valve (8) is in parallel with described switch valve (6), and the oil-out of described variable pump (2) can be communicated with the rodless cavity of described variable piston cylinder (22) by described constant pressure valve (8).
5. the hydraulic control system of trash compactor according to claim 4, it is characterized in that, described hydraulic control system also comprises pressure tap (9), and this pressure tap (9) is arranged on the pipeline between the oil-in of the oil-out of described variable pump (2) and described reversal valve (3).
6. the hydraulic control system of trash compactor according to claim 1 is characterized in that, described switch valve (6) is electric ratio constant pressure valve.
7. the hydraulic control system of trash compactor according to claim 4, it is characterized in that, described hydraulic control system also comprises overflow valve (5), pipeline connection between the oil-in of the oil-out of oil-in of this overflow valve (5) and described variable pump (2) and described reversal valve (3), the oil-out of described overflow valve (5) is communicated with described fuel tank (1).
8. the hydraulic control system of trash compactor according to claim 7 is characterized in that, the setting pressure of described overflow valve (5) is greater than the setting pressure of described constant pressure valve (8).
9. the hydraulic control system of trash compactor according to claim 1, it is characterized in that, be arranged in parallel two described variable pumps (2), two described variable piston cylinders (22), two described switch valves (6) and two described dampers (7) between the oil-in of described fuel tank (1) and described reversal valve (3).
10. a trash compactor is characterized in that, this trash compactor has the hydraulic control system according to any described trash compactor among the claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320075898 CN203093089U (en) | 2013-02-18 | 2013-02-18 | Hydraulic control system of trash compactor and trash compactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320075898 CN203093089U (en) | 2013-02-18 | 2013-02-18 | Hydraulic control system of trash compactor and trash compactor |
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| Publication Number | Publication Date |
|---|---|
| CN203093089U true CN203093089U (en) | 2013-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320075898 Expired - Fee Related CN203093089U (en) | 2013-02-18 | 2013-02-18 | Hydraulic control system of trash compactor and trash compactor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106227073A (en) * | 2016-08-31 | 2016-12-14 | 四川省四通车辆制造有限公司 | A kind of control method of garbage compression station |
| CN110844416A (en) * | 2019-11-05 | 2020-02-28 | 徐州合卓机械科技有限公司 | Wireless remote control device of garbage compression station |
| CN112594238A (en) * | 2020-12-01 | 2021-04-02 | 北京航空航天大学 | Stepless pressure regulating variable plunger pump with electric control proportion |
-
2013
- 2013-02-18 CN CN 201320075898 patent/CN203093089U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106227073A (en) * | 2016-08-31 | 2016-12-14 | 四川省四通车辆制造有限公司 | A kind of control method of garbage compression station |
| CN106227073B (en) * | 2016-08-31 | 2018-12-18 | 四川省四通车辆制造有限公司 | A kind of control method and control system of garbage compression station |
| CN110844416A (en) * | 2019-11-05 | 2020-02-28 | 徐州合卓机械科技有限公司 | Wireless remote control device of garbage compression station |
| CN112594238A (en) * | 2020-12-01 | 2021-04-02 | 北京航空航天大学 | Stepless pressure regulating variable plunger pump with electric control proportion |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130731 Termination date: 20160218 |