CN210949324U - Garbage compression double-pump valve group - Google Patents
Garbage compression double-pump valve group Download PDFInfo
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- CN210949324U CN210949324U CN201921569839.1U CN201921569839U CN210949324U CN 210949324 U CN210949324 U CN 210949324U CN 201921569839 U CN201921569839 U CN 201921569839U CN 210949324 U CN210949324 U CN 210949324U
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Abstract
The utility model discloses a rubbish compression double pump valves in rubbish compression technical field, this valves include first tribit four-way solenoid valve, first two-position four-way solenoid valve, second tribit four-way solenoid valve and second two-position four-way solenoid valve, the P hydraulic fluid port of first two-position four-way solenoid valve communicates first oil pump, the P hydraulic fluid port of A hydraulic fluid port intercommunication first tribit four-way solenoid valve, the P hydraulic fluid port of B hydraulic fluid port and second three-position four-way solenoid valve communicates; an oil port A of the first three-position four-way electromagnetic valve is communicated with a rod cavity of the tipping bucket oil cylinder, and an oil port B of the first three-position four-way electromagnetic valve is communicated with a rodless cavity of the tipping bucket oil cylinder; the oil port P of the second three-position four-way solenoid valve is communicated with a second oil pump through a second oil inlet pipe, the second oil inlet pipe is communicated with the oil port B of the first two-position four-way solenoid valve through a confluence pipe, the oil port A of the second three-position four-way solenoid valve is communicated with the oil port A of the second two-position four-way solenoid valve, and the oil port B is communicated with a rodless cavity of the push head oil cylinder. The utility model has the advantages that accelerate the pushing speed of the push head oil cylinder.
Description
Technical Field
The utility model relates to a rubbish compression technical field, in particular to rubbish compression double pump valves.
Background
Along with people's standard of living constantly improves, the rubbish production is more and more, in order to conveniently clear up fast, sanitation compression equipment popularizes rapidly, the prior art discloses a double pump formula hydraulic valve group for rubbish compression, application publication No. CN109356890A, application publication No. 20190219, this double pump formula hydraulic valve group is through setting up two-position three way solenoid valve, when needs push away the quick extension of first hydro-cylinder piston rod, two-position three way's B hydraulic fluid mouth makes the fluid of pushing away first hydro-cylinder exhaust get back to again in the first hydro-cylinder, accelerate the quick extension of first hydro-cylinder piston rod, thereby accelerate the first hydro-cylinder motion of pushing away. Although the prior art is through getting back to in the push head hydro-cylinder again with the fluid of push head hydro-cylinder exhaust to accelerate the compression speed of push head hydro-cylinder, still have the following problem: the oil discharged by the push head oil cylinder pushes the push head oil cylinder to move, the pushing speed of the push head oil cylinder is still limited, when the tipping bucket oil cylinder turns the garbage into the garbage can, the push head oil cylinder cannot push the push plate to compress the garbage quickly in a short time, the garbage loading time is influenced, the compression effect of the garbage is influenced, the garbage compactness is insufficient, and the loading capacity is less.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an accelerate rubbish compression double pump valves of cutting somebody's hair hydro-cylinder promotion speed.
In order to realize the above utility model purpose, the utility model discloses following technical scheme that rubbish compression double pump valves adopted:
the garbage compression double-pump valve group comprises a first three-position four-way solenoid valve, a first two-position four-way solenoid valve, a second three-position four-way solenoid valve and a second two-position four-way solenoid valve, wherein a P oil port of the first two-position four-way solenoid valve is communicated with a first oil pump through a first oil inlet pipe, an A oil port of the first two-position four-way solenoid valve is communicated with the P oil port of the first three-position four-way solenoid valve, a B oil port of the first two-position four-way solenoid valve is communicated with the P oil port of the second three-position four-way solenoid valve; an oil port A of the first three-position four-way electromagnetic valve is communicated with a rod cavity of the tipping bucket oil cylinder, an oil port B of the first three-position four-way electromagnetic valve is communicated with a rodless cavity of the tipping bucket oil cylinder, an oil port T of the first three-position four-way electromagnetic valve is communicated with an oil return pipe, and the oil return pipe is communicated with an oil tank; the oil port P of the second three-position four-way solenoid valve is communicated with a second oil pump through a second oil inlet pipe, the second oil inlet pipe is communicated with the oil port B of the first two-position four-way solenoid valve through a confluence pipe, the second oil inlet pipe is connected with an oil inlet one-way valve communicated with the oil outlet of the second oil pump, the confluence pipe is connected with a confluence one-way valve communicated with the oil port B of the first two-position four-way solenoid valve, the oil port A of the second three-position four-way solenoid valve is communicated with the oil port A of the second two-position four-way solenoid valve, the oil port B of the second three-position four-way solenoid valve is communicated with a rodless cavity of the push head oil cylinder, the oil port; the oil port P of the second two-position four-way solenoid valve is communicated with a rod cavity of the push head oil cylinder, the oil port B of the second two-position four-way solenoid valve is communicated with a rodless cavity of the push head oil cylinder through a differential return pipe, the differential return pipe is connected with a differential return one-way valve communicated with the oil port B of the second two-position four-way solenoid valve, and the oil port T of the second two-position four-way solenoid valve is communicated with an oil tank.
Preferably, the oil pump further comprises a third two-position four-way solenoid valve for unloading, a P oil port of the third two-position four-way solenoid valve is connected with a first unloading pipe, the first unloading pipe is communicated with a second oil pump through a second oil inlet pipe, an a oil port of the third two-position four-way solenoid valve is sealed, a B oil port of the third two-position four-way solenoid valve is communicated with an oil return pipe through the second unloading pipe, the oil return pipe is communicated with an oil tank, and a T oil port of the third two-position four-way solenoid valve is communicated with the second unloading pipe. During unloading, the third two-position four-way electromagnetic valve is powered on, other electromagnetic valves are powered off, oil output by the first oil pump directly returns to the oil tank, and oil output by the second oil pump passes through a PB oil port of the third two-position four-way electromagnetic valve and then directly returns to the oil tank.
Preferably, a one-way throttle valve is communicated between the first three-position four-way electromagnetic valve and the tipping bucket oil cylinder. The speed of the tipping bucket oil cylinder is conveniently adjusted through the arrangement of the one-way throttle valve.
Preferably, a first overflow valve is arranged between the first oil inlet pipe at the oil outlet of the first oil pump and the oil return pipe. Due to the existence of the first overflow valve, the pressure of the whole oil circuit is ensured to be stable.
Preferably, a second overflow valve is arranged between a second oil inlet pipe at the oil outlet of the second oil pump and the oil return pipe. Due to the existence of the second overflow valve, the pressure of the whole oil circuit is ensured to be stable.
Compared with the prior art, the beneficial effects of the utility model reside in that:
1. the utility model discloses a first two-position four-way solenoid valve's existence, switches over first oil pump and gives tipping bucket hydro-cylinder oil feed or joins to pushing head hydro-cylinder oil feed, and the first oil pump has realized the oil feed under two kinds of different states, and the first is to provide tipping bucket hydro-cylinder oil feed, realizes that the tipping bucket rises, and the second is to join to pushing head hydro-cylinder with the fluid of second oil pump, and two oil pumps give pushing head hydro-cylinder oil feed simultaneously to accelerate the quick extension of pushing head hydro-cylinder to promote, realize the quick compression of rubbish;
2. the utility model discloses a second two-position four-way solenoid valve's existence, form the differential return circuit of push head hydro-cylinder, make the fluid of push head hydro-cylinder exhaust get back to in the push head hydro-cylinder again, accelerate the quick extension of push head hydro-cylinder piston rod, when the push head hydro-cylinder needs to extend more fast and promote, first two-position four-way solenoid valve and second two-position four-way solenoid valve are electrified simultaneously, make the fluid of first oil pump and the fluid of second oil pump simultaneously converge to the push head hydro-cylinder, and, thereby the fluid of push head hydro-cylinder exhaust gets back to in the push head hydro-cylinder again, act on the push head hydro-cylinder with confluence and differential backward flow simultaneously, make the speed that the push head hydro-cylinder promoted increase one time compared with prior art, realize the quick;
3. the utility model discloses a third two-position four-way solenoid valve's existence, the fluid with second oil pump output flows back the oil tank under very low pressure, and the fluid direct reentrant oil tank of first oil pump output makes the pump be in no-load operation's state, realizes hydraulic system's off-load, can reduce power loss, prevents that the system from generating heat, can prolong the life of pump again.
Drawings
Fig. 1 is a hydraulic schematic diagram of the present invention.
The automatic oil supply system comprises a tipping bucket oil cylinder 1, a one-way throttle valve 2, a first three-position four-way electromagnetic valve 3, an oil return pipe 4, an oil tank 5, a first two-position four-way electromagnetic valve 6, a confluence pipe 7, a push head oil cylinder 8, a differential return pipe 9, a differential return check valve 10, a second two-position four-way electromagnetic valve 11, a second three-position four-way electromagnetic valve 12, a confluence check valve 13, an oil inlet check valve 14, a first overflow valve 15, a second overflow valve 16, a first oil inlet pipe 17, a second oil inlet pipe 18, a first oil pump 19, a second oil pump 20, a first unloading pipe 21, a third two-position four-way electromagnetic valve 22 and a second unloading.
Detailed Description
The present invention will be further explained with reference to the following embodiments, which are to be understood as illustrative only and not as limiting the scope of the invention, and modifications of the various equivalent forms of the present invention by those skilled in the art after reading the present invention fall within the scope of the appended claims.
As shown in fig. 1, the garbage compression double-pump valve group comprises a first three-position four-way solenoid valve 3, a first two-position four-way solenoid valve 6, a second three-position four-way solenoid valve 12 and a second two-position four-way solenoid valve 11, wherein a P oil port of the first two-position four-way solenoid valve 6 is communicated with a first oil pump 19 through a first oil inlet pipe 17, an a oil port of the first two-position four-way solenoid valve 6 is communicated with the P oil port of the first three-position four-way solenoid valve 3, a B oil port of the first two-position four-way solenoid valve 6 is communicated with the P oil port of the second three-position four-way solenoid valve; an oil port A of the first three-position four-way electromagnetic valve 3 is communicated with a rod cavity of the tipping bucket oil cylinder 1, an oil port B of the first three-position four-way electromagnetic valve 3 is communicated with a rodless cavity of the tipping bucket oil cylinder 1, a one-way throttle valve 2 is communicated between the first three-position four-way electromagnetic valve 3 and the tipping bucket oil cylinder 1, an oil port T of the first three-position four-way electromagnetic valve 3 is communicated with an oil return pipe 4, and the oil return pipe 4 is communicated with an oil tank 5; a P oil port of a second three-position four-way electromagnetic valve 12 is communicated with a second oil pump 20 through a second oil inlet pipe 18, a second overflow valve 16 is arranged between the second oil inlet pipe 18 positioned at an oil outlet of the second oil pump 20 and an oil return pipe 4, a first overflow valve 15 is arranged between a first oil inlet pipe 17 positioned at an oil outlet of a first oil pump 19 and the oil return pipe 4, the second oil inlet pipe 18 is communicated with a B oil port of a first two-position four-way electromagnetic valve 6 through a confluence pipe 7, the second oil inlet pipe 18 is connected with an oil inlet one-way valve 14 communicated with the oil outlet of the second oil pump 20, the confluence pipe 7 is connected with a confluence one-way valve 13 communicated with the B oil port of the first two-position four-way electromagnetic valve 6, an A oil port of the second three-position four-way electromagnetic valve 12 is communicated with an A oil port of a second two-position four-way electromagnetic valve 11, a B oil port of the second three-, the oil return pipe 4 is communicated with an oil tank 5; the oil port P of the second two-position four-way solenoid valve 11 is communicated with the rod cavity of the push head oil cylinder 8, the oil port B of the second two-position four-way solenoid valve 11 is communicated with the rodless cavity of the push head oil cylinder 8 through a differential return pipe 9, the differential return pipe 9 is connected with a differential return one-way valve 10 communicated with the oil port B of the second two-position four-way solenoid valve 11, and the oil port T of the second two-position four-way solenoid valve 11 is communicated with the oil tank 5; the garbage compression double-pump valve group further comprises a third two-position four-way electromagnetic valve 22 used for unloading, a P oil port of the third two-position four-way electromagnetic valve 22 is connected with a first unloading pipe 21, the first unloading pipe 21 is communicated with a second oil pump 20 through a second oil inlet pipe 18, an A oil port of the third two-position four-way electromagnetic valve 22 is sealed, a B oil port of the third two-position four-way electromagnetic valve 22 is communicated with an oil return pipe 4 through a second unloading pipe 23, the oil return pipe 4 is communicated with an oil tank 5, and a T oil port of the third two-position four-way electromagnetic valve 22 is communicated with the second unloading pipe.
The utility model discloses a concrete working process and principle: when the hydraulic dump truck works, firstly, garbage is dumped into the dump truck, AT the moment, the left end of the first three-position four-way electromagnetic valve is electrified, other electromagnetic valves are not electrified, then, the first oil pump is started, oil in the oil tank is pumped into the first oil inlet pipe by the first oil pump, then, the oil passes through the PA oil port of the first two-position four-way electromagnetic valve, then, the oil passes through the PB oil port of the first three-position four-way electromagnetic valve and enters the rodless cavity of the dump truck oil cylinder, the oil in the rod cavity of the dump truck oil cylinder flows into the oil return pipe from the AT oil port of the first three-position four-way electromagnetic valve, and finally, the oil returns to the oil tank, AT the moment, the piston rod of; then, the right end of the first three-position four-way electromagnetic valve is electrified, other electromagnetic valves are not electrified, a first oil pump is started, the first oil pump pumps oil in an oil tank into a first oil inlet pipe, then the oil passes through a PA oil port of a first two-position four-way electromagnetic valve and then enters a rod cavity of a turnover oil cylinder from the PA oil port of the first three-position four-way electromagnetic valve, the oil in the rodless cavity of the tipping oil cylinder flows into an oil return pipe from a BT oil port of the first three-position four-way electromagnetic valve and finally returns to the oil tank, at the moment, a piston rod of the tipping oil cylinder returns, and the tipping; then, the push plate is pushed to compress garbage by driving the push head oil cylinder to move, AT the moment, the left end of the second three-position four-way solenoid valve is powered on, other solenoid valves are powered off, the second oil pump is started, oil in the oil tank is pumped into the second oil inlet pipe by the second oil pump, then the oil enters the rodless cavity of the push head oil cylinder from the PB oil port of the second three-position four-way solenoid valve, the oil in the rod cavity of the push head oil cylinder passes through the PA oil port of the second two-position four-way solenoid valve, then enters the AT oil port of the second three-position four-way solenoid valve, flows into the return pipe and finally returns into the oil tank, and AT the moment; when a piston rod of the push head oil cylinder needs to return, the right end of the second three-position four-way electromagnetic valve is powered on, other electromagnetic valves are powered off, the second oil pump is started, oil in the oil tank is pumped into the second oil inlet pipe by the second oil pump, then the oil passes through a PA oil port of the second three-position four-way electromagnetic valve, then the oil passes through an AP oil port of the second two-position four-way electromagnetic valve and enters a rod cavity of the push head oil cylinder, and the oil in a rodless cavity of the push head oil cylinder enters a return pipe from a BT of the second three-position four-way electromagnetic valve and; when the pushing speed of the pushing head oil cylinder needs to be increased, differential backflow is carried out, at the moment, the left end of the second three-position four-way solenoid valve is electrified, the second two-position four-way solenoid valve is electrified, other solenoid valves are not electrified, oil output by the second oil pump enters a rodless cavity of the pushing head oil cylinder, so that the oil in a rod cavity of the pushing head oil cylinder continuously enters the rodless cavity of the pushing head oil cylinder from an oil port PB of the second two-position four-way solenoid valve, and the extending pushing speed of the pushing head oil cylinder is increased; when the extending pushing speed of the push head oil cylinder needs to be further accelerated, confluence is carried out, at the moment, the first two-position four-way electromagnetic valve is electrified, the left end of the second three-position four-way electromagnetic valve is electrified, other electromagnetic valves are not electrified, oil output by the second oil pump enters a rodless cavity of the push head oil cylinder, meanwhile, the oil output by the first oil pump enters the first oil inlet pipe, then enters the confluence pipe through a PB oil port of the first two-position four-way electromagnetic valve, then is converged into the second oil inlet pipe, finally enters the rodless cavity of the push head oil cylinder, the extending pushing speed of the push head oil cylinder is accelerated, when the push head oil cylinder needs to retreat, the first two-position four-way electromagnetic valve is electrified, the right end of the second three-position four-way electromagnetic valve is electrified, other electromagnetic valves are not electrified, the oil output by the second oil pump enters a rod cavity of the push head oil cylinder, meanwhile, the oil output by the first oil pump is input into the first oil inlet pipe, then the oil is gathered into a second oil inlet pipe and finally enters a rod cavity of the push head oil cylinder to realize the retreat of the push head oil cylinder; when the extension pushing speed of the push head oil cylinder needs to be further accelerated, differential backflow and confluence are simultaneously acted on the push head oil cylinder, at the moment, the first two-position four-way solenoid valve is powered on, the second two-position four-way solenoid valve is powered on, the left end of the second three-position four-way solenoid valve is powered on, other solenoid valves are powered off, oil output by the first oil pump and oil output by the second oil pump simultaneously enter a rodless cavity of the push head oil cylinder, the oil in a rod cavity of the push head oil cylinder continuously enters the rodless cavity of the push head oil cylinder from a PB oil port of the second two-position four-way solenoid valve, the extension pushing speed of the push head oil cylinder is accelerated, and therefore the garbage is rapidly compressed, the garbage compactness is high; meanwhile, when unloading is needed, at the moment, the third two-position four-way electromagnetic valve is powered on, other electromagnetic valves are powered off, oil output by the first oil pump directly returns to the oil tank, the oil output by the second oil pump passes through a PB oil port of the third two-position four-way electromagnetic valve and then directly returns to the oil tank, the pump is in a no-load running state, unloading of a hydraulic system is achieved, power loss can be reduced, heating of the system is prevented, and the service life of the pump can be prolonged.
Claims (5)
1. Rubbish compression double pump valves, its characterized in that: the oil port P of the first two-position four-way solenoid valve is communicated with a first oil pump through a first oil inlet pipe, the oil port A of the first two-position four-way solenoid valve is communicated with the oil port P of the first three-position four-way solenoid valve, the oil port B of the first two-position four-way solenoid valve is communicated with the oil port P of the second three-position four-way solenoid valve, and the oil port T of the first two-position four-way solenoid valve is communicated with an oil tank; an oil port A of the first three-position four-way electromagnetic valve is communicated with a rod cavity of the tipping bucket oil cylinder, an oil port B of the first three-position four-way electromagnetic valve is communicated with a rodless cavity of the tipping bucket oil cylinder, an oil port T of the first three-position four-way electromagnetic valve is communicated with an oil return pipe, and the oil return pipe is communicated with an oil tank; the oil port P of the second three-position four-way solenoid valve is communicated with a second oil pump through a second oil inlet pipe, the second oil inlet pipe is communicated with the oil port B of the first two-position four-way solenoid valve through a confluence pipe, the second oil inlet pipe is connected with an oil inlet one-way valve communicated with the oil outlet of the second oil pump, the confluence pipe is connected with a confluence one-way valve communicated with the oil port B of the first two-position four-way solenoid valve, the oil port A of the second three-position four-way solenoid valve is communicated with the oil port A of the second two-position four-way solenoid valve, the oil port B of the second three-position four-way solenoid valve is communicated with a rodless cavity of the push head oil cylinder, the oil port; the oil port P of the second two-position four-way solenoid valve is communicated with a rod cavity of the push head oil cylinder, the oil port B of the second two-position four-way solenoid valve is communicated with a rodless cavity of the push head oil cylinder through a differential return pipe, the differential return pipe is connected with a differential return one-way valve communicated with the oil port B of the second two-position four-way solenoid valve, and the oil port T of the second two-position four-way solenoid valve is communicated with an oil tank.
2. A refuse compression double pump valve group according to claim 1, characterized in that: the oil inlet of the first unloading pipe is communicated with the first oil pump through a first oil inlet pipe, the oil inlet of the first two-position four-way solenoid valve is sealed, the oil inlet of the first two-position four-way solenoid valve is communicated with an oil return pipe through a second unloading pipe, the oil return pipe is communicated with an oil tank, and the oil outlet of the first two-position four-way solenoid valve is communicated with the first unloading pipe through a T oil inlet of the first two-position four-way solenoid valve.
3. A refuse compression double pump valve group according to claim 1, characterized in that: and a one-way throttle valve is communicated between the first three-position four-way electromagnetic valve and the tipping bucket oil cylinder.
4. A refuse compression double pump valve group according to claim 1, characterized in that: a first overflow valve is arranged between the first oil inlet pipe at the oil outlet of the first oil pump and the oil return pipe.
5. A refuse compression double pump valve group according to claim 1, characterized in that: and a second overflow valve is arranged between the second oil inlet pipe at the oil outlet of the second oil pump and the oil return pipe.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921569839.1U CN210949324U (en) | 2019-09-20 | 2019-09-20 | Garbage compression double-pump valve group |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921569839.1U CN210949324U (en) | 2019-09-20 | 2019-09-20 | Garbage compression double-pump valve group |
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| CN210949324U true CN210949324U (en) | 2020-07-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110566524A (en) * | 2019-09-20 | 2019-12-13 | 扬州海纳尔液压设备有限公司 | Garbage compression double-pump valve group |
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2019
- 2019-09-20 CN CN201921569839.1U patent/CN210949324U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110566524A (en) * | 2019-09-20 | 2019-12-13 | 扬州海纳尔液压设备有限公司 | Garbage compression double-pump valve group |
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