CN209278234U - A kind of improved hydraulic valve group for compressed garbage - Google Patents
A kind of improved hydraulic valve group for compressed garbage Download PDFInfo
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- CN209278234U CN209278234U CN201822184640.9U CN201822184640U CN209278234U CN 209278234 U CN209278234 U CN 209278234U CN 201822184640 U CN201822184640 U CN 201822184640U CN 209278234 U CN209278234 U CN 209278234U
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Abstract
The utility model discloses a kind of improved hydraulic valve group for compressed garbage.This kind is used for the improved hydraulic valve group of compressed garbage, including the first check valve being connect with oil pump in fuel tank, first check valve is connect with working connection, working connection is connected to the P hydraulic fluid port of the first two-position four-way solenoid valve, its A hydraulic fluid port is connected to push top oil cylinder oil outlet, its T hydraulic fluid port is connected to oil return line, working connection is also connect with the P hydraulic fluid port of the second two-position four-way solenoid valve, its B hydraulic fluid port is connected to its T hydraulic fluid port and is connected to push top oil cylinder oil inlet mouth, working connection is also connected to the P hydraulic fluid port of three position four-way electromagnetic valve, its T hydraulic fluid port is connected to oil return line, its A hydraulic fluid port is connected to the dump ram oil inlet of peripheral hardware, its B hydraulic fluid port is connected to dump ram oil outlet, its A hydraulic fluid port and B hydraulic fluid port are connected to T hydraulic fluid port, working connection is connected to oil return line.The valve block structure is reasonable, and in hydraulic system operation, valve group keeps system operation noise small.
Description
Technical field
The utility model relates to garbage-compressing technical field of hydraulic, in particular to a kind of hydraulic valve bank.
Background technique
With the variation in epoch, people 's material life quality is also being stepped up, and the processing of rubbish is also at critically important
Item, due to being much compressible Organic rubbish in house refuse, so need to reprocess after compressing rubbish in advance, and
Common garbage compression system traditional power unit Hydraulic System Principle design is unreasonable, and band carries starting, hydraulic valve bank work temperature
Degree is high and is easy to be out of order, when causing power unit to drive compression box compressed garbage due to hydraulic valve bank design unreasonable, if
Standby high noise, reversing impact are big.
Utility model content
The purpose of the utility model is to provide a kind of structurally reasonable, the small hydraulic valve banks of noise of compressed garbage.
In order to realize that above-mentioned purpose of utility model, a kind of improved hydraulic valve group for compressed garbage of the utility model are adopted
With following technical solution:
A kind of improved hydraulic valve group for compressed garbage, it is characterised in that: including connecting with oil pump out of the mouth in fuel tank
The first check valve connect, first check valve are connect with working connection, the P oil of the working connection and the first two-position four-way solenoid valve
Mouth connection, the A hydraulic fluid port of the first two-position four-way solenoid valve are connected to its P hydraulic fluid port and are connected to the push top oil cylinder oil outlet of peripheral hardware, the
T hydraulic fluid port, the A hydraulic fluid port of one two-position four-way solenoid valve are connected to oil return line, and the oil return line is connected to the oil return opening of fuel tank, and described
It is additionally provided with third overflow valve open in usual between the A hydraulic fluid port and oil return line of one two-position four-way solenoid valve, the working connection is also with second
The P hydraulic fluid port of two-position four-way solenoid valve connects, and the A hydraulic fluid port of second two-position four-way solenoid valve is connected to its P hydraulic fluid port and and oil return
Road connection, is additionally provided with the first overflow valve open in usual between the A hydraulic fluid port and fuel tank of second two-position four-way solenoid valve, and described the
The T hydraulic fluid port of two two-position four-way solenoid valves is connected to oil return line, and the B hydraulic fluid port of second two-position four-way solenoid valve and its T hydraulic fluid port connect
Lead to and be connected to push top oil cylinder oil inlet mouth, the working connection is also connected to the P hydraulic fluid port of three position four-way electromagnetic valve, the 3-position 4-way
The T hydraulic fluid port of solenoid valve is connected to oil return line, and the A hydraulic fluid port of the three position four-way electromagnetic valve and the dump ram oil inlet of peripheral hardware connect
Logical, B hydraulic fluid port is connected to dump ram oil outlet, and the A hydraulic fluid port and B hydraulic fluid port of the three position four-way electromagnetic valve are connected to T hydraulic fluid port, institute
It states working connection to be connected to oil return line, be connect between the working connection and oil return line with the normally closed hydraulic fluid port of bi-bit bi-pass electromagnetism.
When utility model works, start oil pump, while two-position two-way solenoid valve obtains electric, makes system No Load Start, then
First two-position four-way solenoid valve, three position four-way electromagnetic valve right end obtain electric, the piston rod of dump ram stretches out, and tipping bucket rises, will
Rubbish in tipping bucket pours into push top front end, and the first two-position four-way solenoid valve obtains electric, and the left end of three position four-way electromagnetic valve obtains electric, tipping bucket
The piston rod of oil cylinder is shunk, and playback is risen under tipping bucket, and the first two-position four-way solenoid valve obtains electric, the second two-position four-way solenoid valve and obtains electric push away
Head piston rod stretches out, and push top work is into compressed garbage, when if necessary to push top F.F. compressed garbage, it is only necessary to the second two-position four-way electricity
Magnet valve obtain it is electric, when all solenoid valves must not electricity when, push top piston rod retraction, push top reset.
Compared with prior art, the utility model has the beneficial effects that: two-position two-way solenoid valve to be obtained to electric, system zero load
Starting avoids motor and oil pump from damaging, extends motor and oil pump service life, reduces system band and carries starting noise, 3-position 4-way
Solenoid valve is directly connected to tank drainback mouth, allows tipping bucket that hydraulic oil is directly backed into fuel tank, keeps valve group arrangement more reasonable,
It avoids tipping bucket oil return line from being connected to push top oil return line, the return pressure of hydraulic system is reduced by the reasonable Arrangement of valve group, from
And system noise is reduced, when the second two-position four-way solenoid valve must not be electric, if working connection oil pressure is excessive, the first overflow valve will be made
Conducting, hydraulic oil part returns to fuel tank from the first overflow valve, reduces system pressure, and third overflow valve is used to protect push top and the
Oil circuit between one two-position four-way solenoid valve when the oil circuit oil pressure is excessive, passes through third overflow valve pressure release.
The second overflow valve open in usual, second overflow valve and bi-bit bi-pass are provided between the working connection and oil return line
Solenoid valve is arranged in parallel.When working connection oil pressure is excessive, hydraulic oil part enters fuel tank by the second overflow valve, reduces system oil
Pressure.
The push top oil cylinder oil inlet mouth is connected to oil return line, is provided with hydraulic control between the push top oil cylinder oil inlet mouth and oil return line
Check valve, the control port of the hydraulic control one-way valve are connected to the B hydraulic fluid port of the second two-position four-way solenoid valve.Push top oil cylinder backhaul
When, flow system flow doubles, and shunting when making push top hydraulic oil return to fuel tank by hydraulic control one-way valve reduces the second two-position four-way
Throttling loss when solenoid valve is excessively oily, to further decrease systematic procedure pressure.
Hydraulic lock is provided between the three position four-way electromagnetic valve and dump ram.
Detailed description of the invention
Fig. 1 is the principles of the present invention schematic diagram；
Wherein, 1 fuel tank, 2 oil pumps, 3 first check valves, 4 working connections, 5 first two-position four-way solenoid valves, 6 push top oil cylinders, 7
Oil return line, 8 third overflow valves, 9 first overflow valves, 10 three position four-way electromagnetic valves, 11 dump rams, 12 hydraulic locks, 13 2 two
Three-way electromagnetic valve, 14 second overflow valves, 15 hydraulic control one-way valves, 16 second two-position four-way solenoid valves.
Specific embodiment
With reference to embodiment, the utility model is furtherd elucidate, it should be understood that these embodiments are only used for
Bright the utility model rather than limitation the scope of the utility model, after having read the utility model, those skilled in the art
Member falls within the application range as defined in the appended claims to the modification of the various equivalent forms of the utility model.
As shown in Figure 1, a kind of improved hydraulic valve group for compressed garbage, including connect with 2 oil outlet of oil pump in fuel tank 1
The first check valve 3 connect, the first check valve are connect with working connection 4, and the P hydraulic fluid port of working connection and the first two-position four-way solenoid valve 5 connects
Logical, the A hydraulic fluid port of the first two-position four-way solenoid valve is connected to its P hydraulic fluid port and is connected to 6 oil outlet of push top oil cylinder of peripheral hardware, the one or two
T hydraulic fluid port, the A hydraulic fluid port of position four-way solenoid valve are connected to oil return line 7, and oil return line is connected to the oil return opening of fuel tank, the first two-position four-way
Be provided with third overflow valve 8 open in usual between the A hydraulic fluid port and oil return line of solenoid valve, working connection also with the second two-position four-way solenoid valve 16
The connection of P hydraulic fluid port, the A hydraulic fluid port of the second two-position four-way solenoid valve is connected to its P hydraulic fluid port and is connected to oil return line, the second two-position four-way
Be provided with the first overflow valve 9 open in usual between the A hydraulic fluid port and fuel tank of solenoid valve, the T hydraulic fluid port of the second two-position four-way solenoid valve with return
Oil communication, the B hydraulic fluid port of the second two-position four-way solenoid valve are connected to its T hydraulic fluid port and are connected to push top oil cylinder oil inlet mouth, working connection
It is also connected to the P hydraulic fluid port of three position four-way electromagnetic valve 10, the T hydraulic fluid port of three position four-way electromagnetic valve is connected to oil return line, 3-position 4-way electricity
The A hydraulic fluid port of magnet valve is connected to 11 oil inlet of dump ram of peripheral hardware, and B hydraulic fluid port is connected to dump ram oil outlet, 3-position 4-way
The A hydraulic fluid port and B hydraulic fluid port of solenoid valve are connected to T hydraulic fluid port, and hydraulic lock 12, main oil are provided between three position four-way electromagnetic valve and dump ram
Road is connected to oil return line, is connect between working connection and oil return line with the normally closed hydraulic fluid port of bi-bit bi-pass electromagnetism 13, working connection and oil return
The second overflow valve 14 open in usual is provided between road, the second overflow valve is arranged in parallel with two-position two-way solenoid valve, push top oil cylinder into
Hydraulic fluid port is connected to oil return line, is had a haircut and is provided with hydraulic control one-way valve 15, the control of hydraulic control one-way valve between oil cylinder oil inlet mouth and oil return line
Hydraulic fluid port is connected to the B hydraulic fluid port of the second two-position four-way solenoid valve.
The specific work process and principle of the utility model:
Pump start, while two-position two-way solenoid valve obtains electric, working connection is connected two-position two-way solenoid valve with oil return line, makes
System No Load Start, after start completion, two-position two-way solenoid valve power loss, and make the first two-position four-way solenoid valve, 3-position 4-way
The right end of solenoid valve obtains electric, and working connection does not give push top fuel feeding when the first two-position four-way solenoid valve obtains electric, has a haircut at this time motionless, and three
The right end of four way solenoid valve obtains electric, and working connection is connected to the oil inlet of dump ram, and the oil outlet of dump ram is connected to fuel tank,
So tipping bucket rises and the rubbish in tipping bucket is poured into push top front side, then make right end power loss, the left end of three position four-way electromagnetic valve
Must be electric, working connection is connected to the oil outlet of dump ram at this time, and the oil inlet of dump ram is connected to fuel tank, and tipping bucket declines at this time
Then playback makes three position four-way electromagnetic valve power loss, keep the first two-position four-way solenoid valve to obtain electric, while keeping the second two-position four-way electric
Magnet valve obtain it is electric, at this time working connection with push top oil cylinder oil inlet be connected to, the oil outlet for oil cylinder of having a haircut is connected to oil return line, have a haircut exist
Work is into, compressed garbage under the pressure of hydraulic oil, when needing Fast Compression rubbish, keeps the second two-position four-way solenoid valve to obtain electric,
Make the first two-position four-way solenoid valve power loss, the oil outlet for oil cylinder of having a haircut at this time is connected to working connection, and push top oil cylinder flows out hydraulic
Oil stream enters working connection, increases the flow of working connection hydraulic oil, so that the unit time enters the hydraulic oil of push top oil cylinder oil inlet mouth
Increase, push top realizes quick work into making the first two-position four-way solenoid valve, the second two-position four-way electromagnetism after completing compressed garbage
Valve power loss, working connection is connected to push top oil outlet at this time, and push top oil inlet is connected to oil return line, is had a haircut under the pressure of hydraulic oil
It resets.
Compared with prior art, the utility model has the beneficial effects that:
1, two-position two-way solenoid valve is set between working connection and oil return line, system No Load Start may be implemented, avoid motor
And oil pump damage, extend motor and oil pump service life, reduces system band and carry starting noise, and can be followed by system zero load
Ring, it is cooling after keeping system unloaded, system oil temperature is rapidly decreased to 28 DEG C hereinafter, realizing unloaded cooling function；Rubbish is compressed in push top
After the completion of rubbish, i.e., when will carry out return stroke, obtain two-position two-way solenoid valve electric, by system pressure off-load to light condition 4bar
Left and right, then oil cylinder commutation action is completed, to solve impact and the noise of oil cylinder high pressure commutation, and then reduce compression box structure punching
Hit noise.
2, overflow valve open in usual is set in valve group, when corresponding oil circuit pressure is excessive, reduces system oil pressure, protects hydraulic pressure system
System, keeps this kind of valve block structure more reasonable.
3, tipping bucket can be directly connected to oil cylinder by three position four-way electromagnetic valve, allow tipping bucket that hydraulic oil is directly backed into oil
Case avoids tipping bucket oil return line from being connected to push top oil return line, the return pressure of hydraulic system is reduced by the reasonable Arrangement of valve group,
The noise for reducing system shock, optimizes the structure of hydraulic system.
4, in return stroke of having a haircut, the flow of hydraulic system is doubled, and push top oil cylinder oil inlet mouth is passed through with oil return line
Hydraulic control one-way valve connection, this valve is usually in close state, and when return pressure is excessive, automatically controls liquid by system hydraulic power
It controls check valve to open, realizes reverse-conducting, to be shunted to oil return, when reducing excessively oily when the second two-position four-way solenoid valve
Throttling loss, to further decrease system pressure.
Claims (4)
1. a kind of improved hydraulic valve group for compressed garbage, it is characterised in that: including being connect with oil pump out of the mouth in fuel tank
The first check valve, first check valve connect with working connection, the P hydraulic fluid port of the working connection and the first two-position four-way solenoid valve
Connection, the A hydraulic fluid port of the first two-position four-way solenoid valve are connected to its P hydraulic fluid port and are connected to the push top oil cylinder oil outlet of peripheral hardware, first
T hydraulic fluid port, the A hydraulic fluid port of two-position four-way solenoid valve are connected to oil return line, and the oil return line is connected to the oil return opening of fuel tank, and described first
It is additionally provided with third overflow valve open in usual between the A hydraulic fluid port and oil return line of two-position four-way solenoid valve, the working connection is also with the two or two
The P hydraulic fluid port of position four-way solenoid valve connects, and the A hydraulic fluid port of second two-position four-way solenoid valve is connected to its P hydraulic fluid port and and oil return line
Connection, is additionally provided with the first overflow valve open in usual between the A hydraulic fluid port and fuel tank of second two-position four-way solenoid valve, and described second
The T hydraulic fluid port of two-position four-way solenoid valve is connected to oil return line, and the B hydraulic fluid port of second two-position four-way solenoid valve is connected to its T hydraulic fluid port
And be connected to push top oil cylinder oil inlet mouth, the working connection is also connected to the P hydraulic fluid port of three position four-way electromagnetic valve, the 3-position 4-way electricity
The T hydraulic fluid port of magnet valve is connected to oil return line, and the A hydraulic fluid port of the three position four-way electromagnetic valve is connected to the dump ram oil inlet of peripheral hardware,
Its B hydraulic fluid port is connected to dump ram oil outlet, and the A hydraulic fluid port and B hydraulic fluid port of the three position four-way electromagnetic valve are connected to T hydraulic fluid port, described
Working connection is connected to oil return line, is connect between the working connection and oil return line with the normally closed hydraulic fluid port of bi-bit bi-pass electromagnetism.
2. the improved hydraulic valve group according to claim 1 for compressed garbage, it is characterised in that: the working connection and
The second overflow valve open in usual is provided between oil return line, second overflow valve is arranged in parallel with two-position two-way solenoid valve.
3. the improved hydraulic valve group according to claim 2 for compressed garbage, it is characterised in that: the push top oil cylinder
Oil inlet is connected to oil return line, and hydraulic control one-way valve, the fluid-control one-way are provided between the push top oil cylinder oil inlet mouth and oil return line
The control port of valve is connected to the B hydraulic fluid port of the second two-position four-way solenoid valve.
4. the improved hydraulic valve group according to claim 3 for compressed garbage, it is characterised in that: the 3-position 4-way
Hydraulic lock is provided between solenoid valve and dump ram.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822184640.9U CN209278234U (en) | 2018-12-25 | 2018-12-25 | A kind of improved hydraulic valve group for compressed garbage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822184640.9U CN209278234U (en) | 2018-12-25 | 2018-12-25 | A kind of improved hydraulic valve group for compressed garbage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209278234U true CN209278234U (en) | 2019-08-20 |
Family
ID=67607251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822184640.9U Active CN209278234U (en) | 2018-12-25 | 2018-12-25 | A kind of improved hydraulic valve group for compressed garbage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209278234U (en) |
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2018
- 2018-12-25 CN CN201822184640.9U patent/CN209278234U/en active Active
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