CN208150880U - A kind of synchronous lifting device of super low temperature quick frozen production line - Google Patents
A kind of synchronous lifting device of super low temperature quick frozen production line Download PDFInfo
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- CN208150880U CN208150880U CN201820625479.1U CN201820625479U CN208150880U CN 208150880 U CN208150880 U CN 208150880U CN 201820625479 U CN201820625479 U CN 201820625479U CN 208150880 U CN208150880 U CN 208150880U
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Abstract
The utility model discloses a kind of synchronous lifting devices of super low temperature quick frozen production line.The utility model includes hydraulic cylinder supporting leg, two position four-way solenoid valves, syncmotor, one-way throttle valve and hydraulic pump.The syncmotor is made of six hydraulic motor coaxial parallel-connections, keeps the output flow of each hydraulic motor equal, so that the oil inlet quantity of six hydraulic cylinder supporting legs is equal.The utility model utilizes six gear motor coaxial parallel-connections, has the function that flow distributing and collecting, i.e., the output flow of each motor is identical, keeps six hydraulic cylinder supporting leg lifting speeds identical, so that super low temperature quick frozen production line platform be made smoothly to go up and down.
Description
Technical field
The utility model relates to a kind of synchronous lifting devices of super low temperature quick frozen production line.
Background technique
The raw food that super low temperature quick frozen production line is mainly used for the mass of marine product is quick-frozen, and production line is needed after use to life
The inner space of producing line is cleaned, and is avoided equipment corrupt and smelly because of marine product residue, is influenced marine product next time
Production.Therefore liquid nitrogen flash freezer production line need to be cleaned regularly internal volume.
The lifting device of traditional hydraulic quick-frozen production line platform is mainly electronic screw body, motor drives screw mandrel machine
Structure slowly promotes platform.Electric threaded shaft mechanism assembly precision needed for six supporting leg Synchronous lifting of platform and control precision are higher,
Stuck phenomenon is easy to happen when equipment lifting, and higher cost service life is short.Traditional hydraulic lift, multi-cylinder synchronous base
This is all realized by flow divider-combiner, but the synchronous higher cost realized using flow divider-combiner of six cylinders, and synchronous effect compared with
Difference.
Summary of the invention
The utility model synchronizes stable lifting to solve six supporting leg of super low temperature quick frozen production line, proposes a kind of arrangement
Convenient, structure is simple, cost is relatively low and the longer hydraulic synchronous lifting device of service life.
The utility model includes hydraulic cylinder supporting leg, two position four-way solenoid valves, syncmotor, one-way throttle valve and hydraulic pump,
Hydraulic pump outlet the first check valve inlet of connection, a port P of the first one-way valved outlet two position four-way solenoid valves of connection, two
Second port A of position four-way solenoid valve is connected with the rod chamber of six hydraulic cylinder supporting legs, the third of two position four-way solenoid valves
Port B is sequentially connected the rodless cavity of one-way throttle valve, syncmotor and each hydraulic cylinder supporting leg, and the 4th of two position four-way solenoid valves the
The import of a port T connection third check valve；The syncmotor is made of six hydraulic motor coaxial parallel-connections, makes each liquid
The output flow of pressure motor is equal, so that the oil inlet quantity of six hydraulic cylinder supporting legs is equal；The hydraulic cylinder supporting leg support
Upper cover plate in super low temperature quick frozen production line；The outlet end of each hydraulic motor in syncmotor also with second one-way valve and
The import of one overflow valve connects, and the second one-way valve and the first overflow valve are in parallel, their outlet connects third check valve
Import carry out oil return；When hydraulic cylinder supporting leg rises, a port P and third port the B connection of two position four-way solenoid valves
It is logical；When hydraulic cylinder supporting leg declines, a port P of two position four-way solenoid valves and second port A connection.
It furtherly, further include external hydraulic filter and bypass check valve in parallel, the external hydraulic mistake
Filter and bypass check valve are arranged between third check valve and fuel tank.
Furtherly, it is characterised in that：It is also concatenated between the hydraulic pump outlet and external hydraulic filter inlet
There is the second overflow valve, second overflow valve determines the operating pressure of synchronous lifting device.
Furtherly, it is provided on the pipeline that second port A of two position four-way solenoid valves is connected with rod chamber
Accumulator, the accumulator provide a lower pressure for upper cover plate, become the sealing element between upper cover plate and lower plate sufficiently
Shape reaches sealing effect, avoids cool air leakage.
The beneficial effects of the utility model：The utility model utilizes six gear motor coaxial parallel-connections, reaches flow distributing and collecting
Effect, i.e., the output flow of each motor is identical, keeps six hydraulic cylinder supporting leg lifting speeds identical, to keep super low temperature quick frozen raw
Producing line platform is smoothly gone up and down.
Detailed description of the invention
Fig. 1 is the hydraulic system principle figure of synchronous lifting device；
Fig. 2 is the isometric figure of super low temperature quick frozen production line.
Specific embodiment
Below in conjunction with attached drawing, the utility model is described in further detail：
As depicted in figs. 1 and 2, the lifting device of super low temperature quick frozen production line is mainly powered by hydraulic cylinder supporting leg 1, two four
Magnet valve 14, overflow valve 2,9, check valve 3,6,8,13, syncmotor 4, fuel tank 10, one-way throttle valve 5, hydraulic motor 11, motor
12 and accumulator 15 form, wherein syncmotor is made of six hydraulic motor coaxial parallel-connections, it is ensured that the output stream of each motor
It measures identical.As shown in Figure 1, hydraulic system realizes the raising and lowering of hydraulic cylinder, synchronous horse by two solenoid valves 14 of switching
Up to the synchronization lifting for realizing hydraulic cylinder as diverting current collector.Solenoid valve is switched to left position, hydraulic oil when lifting device works
The rodless cavity of six hydraulic cylinders is diverted to by syncmotor, hydraulic cylinder rod chamber oil return, six cylinders are synchronous to be risen.The normal position of solenoid valve
For right position, the hydraulic oil at hydraulic cylinder rodless cavity end declines hydraulic cylinder synchronous by syncmotor afflux oil return box.Syncmotor
Flow distributing and collecting effect go up and down super low temperature quick frozen production line upper cover plate smoothly, avoid because hydraulic cylinder supporting leg go up and down it is asynchronous due to
Stuck phenomenon occurs.When upper cover plate arrival bottom and lower plate contact, hydraulic closure system, accumulator 15 provides one for upper cover plate
A lower pressure makes the sealing element fully deformed between upper cover plate and lower plate reach sealing effect, avoids cool air leakage.
The hydraulic system working pressure of the utility model is set up by overflow valve 9, and hydraulic pump outlet connects check valve 13, unidirectionally
13 oil outlet of valve connects two position four-way solenoid valves 14,14 oil outlet one end of solenoid valve（Port A）With 1 rod chamber phase of hydraulic cylinder supporting leg
Even, one end（Port B）Connection one-way throttle valve 5,1 rodless cavity of syncmotor 4 and hydraulic cylinder supporting leg in succession.Syncmotor is by six
Hydraulic motor coaxial parallel-connection composition, keeps the output flow of each motor equal, i.e. the oil inlet quantity of oil cylinder in six hydraulic cylinder supporting legs
It is equal, so that six supporting legs is promoted speed and be consistent, platform is smoothly gone up and down.The oil outlet of each hydraulic motor connects in syncmotor
Check valve 3 and overflow valve 2 are connect, check valve 3 and overflow valve 2 are in parallel, and one end connects 8 oil return of check valve, and the effect of check valve 3 is to make
Each chamber of syncmotor keeps the smallest pressure of 3bar, when one of hydraulic cylinder has arrived at bottom, synchronous horse
Up to also when continuing to run for other slower hydraulic cylinders, minimum pressure ensure that fastest hydraulic cylinder is not emptied.It overflows
The effect of stream valve 2 is when preventing one of them faster hydraulic cylinder from reaching top, and outlet pressure amplifies phenomenon and generates excessively high
Pressure.
When upper cover plate rises, solenoid valve is switched to left position, and the oil liquid of hydraulic pump enters syncmotor, and equivalent is diverted to again
Hydraulic cylinder rodless cavity, six hydraulic cylinder supporting leg Synchronous liftings.When upper cover plate reaches top, motor is closed, and solenoid valves are kept
Left position, platform hover over top.When upper cover plate decline, solenoid valve is closed, the output oil liquid of hydraulic pump enters hydraulic cylinder supporting leg
The oil liquid of rod chamber, rodless cavity passes through syncmotor afflux oil return box, the then synchronous decline of six hydraulic cylinder supporting legs.The utility model
In upper cover plate self weight it is lighter, when upper cover plate, which reaches bottom and lower platform, to be contacted, sealing element can not be killed completely by self weight, institute
With when hydraulic closure system, system provides a lower pressure by accumulator 15 for upper cover plate, make between upper cover plate and lower plate
Sealing element fully deformed reach sealing effect, avoid cool air leakage.External hydraulic filter 7 occurs with pressure difference signal simultaneously
Device, when filter core blocks, system issues replacement filter core alarm, and bypass check valve 6 opens oil return.
Embodiment：
When super low temperature quick frozen production line upper cover plate need to promote cleaning inner space, motor 12 is opened, hydraulic pump 11 is started,
When two position four-way valves 14 are in left position, at this moment high-voltage oil liquid is by one-way throttle valve and syncmotor and hydraulic cylinder supporting leg 1 without bar
Chamber is connected, and 1 rod chamber oil liquid oil return box of hydraulic cylinder supporting leg, six hydraulic cylinder supporting legs synchronize slow promotion.When super low temperature quick frozen is raw
Producing line upper cover plate closes hydraulic pump 11 when reaching predetermined position, and two position four-way valves 14 play hydraulic still in left position, check valve 13
Lock effect stops hydraulic cylinder on a predetermined position, and at this moment worker can be to cleaning inside super low temperature quick frozen production line.When clear
Two position four-way valves 14 are closed when washing into, when solenoid valve is in right position, hydraulic pump 11 is opened simultaneously, at this moment high-voltage oil liquid with it is hydraulic
1 rod chamber of cylinder supporting leg is connected, and the oil liquid of 1 rodless cavity of hydraulic cylinder supporting leg is by syncmotor and one-way throttle valve oil return box, and six
The synchronous decline of hydraulic cylinder supporting leg.
Operating procedure is as follows：
1. upper cover plate rises：System is opened, and checks filter differential pressure signal generator and liquid level relay（If filtering
Device blocking issues replacement filter core alarm, and oil liquid is sounded an alarm lower than alarming levels, prompts to refuel）, after inspection is errorless, first open electricity
Machine 12 starts hydraulic pump 11, and then solenoid valve 14 is powered, hydraulic cylinder uplink, when six cylinders reach top, first closes motor 12, electromagnetism
Valve 14 remains powered on.
2. hydraulic cylinder downlink：Inspection system, after no alarm, opening motor 12, closing solenoid valve 14, hydraulic cylinder downlink, when
Six hydraulic cylinders close motor 12 when all reaching bottom.
3. production line carries out quick-frozen work, it is ensured that the no power always of solenoid valve 14, then open motor 12 start it is hydraulic
Pump 11, time are 2 seconds, are then shut off hydraulic pump motor 12, then start hydraulic pump motor 2 seconds every a hour.
Claims (4)
1. a kind of synchronous lifting device of super low temperature quick frozen production line, including hydraulic cylinder supporting leg, two position four-way solenoid valves, synchronous horse
It reaches, one-way throttle valve and hydraulic pump, feature exist：Hydraulic pump outlet connects the first check valve inlet, and the first one-way valved outlet connects
Meet a port P of two position four-way solenoid valves, second port A of two position four-way solenoid valves has with six hydraulic cylinder supporting legs
Rod cavity is connected, and the third port B of two position four-way solenoid valves is sequentially connected one-way throttle valve, syncmotor and each hydraulic cylinder branch
The rodless cavity of leg, the import of the 4th port T connection third check valve of two position four-way solenoid valves；The syncmotor is by six
A hydraulic motor coaxial parallel-connection composition, keeps the output flow of each hydraulic motor equal, so that six hydraulic cylinder supporting legs
Oil inlet quantity is equal；Upper cover plate in the hydraulic cylinder supporting leg support super low temperature quick frozen production line；Each liquid in syncmotor
The outlet end of pressure motor is also connect with the import of second one-way valve and the first overflow valve, the second one-way valve and the first overflow
Valve is in parallel, and the import of their outlet connection third check valve carries out oil return；When hydraulic cylinder supporting leg rises, two four-way electromagnetics
The a port P and third port B connection of valve；When hydraulic cylinder supporting leg declines, a port P of two position four-way solenoid valves
With second port A connection.
2. a kind of synchronous lifting device of super low temperature quick frozen production line according to claim 1, it is characterised in that：Further include
External hydraulic filter and bypass check valve in parallel, the external hydraulic filter and the setting of bypass check valve are the
Between three check valves and fuel tank.
3. a kind of synchronous lifting device of super low temperature quick frozen production line according to claim 2, it is characterised in that：Described
The second overflow valve is also serially connected between hydraulic pump outlet and external hydraulic filter inlet, second overflow valve determines same
Walk the operating pressure of lifting device.
4. a kind of synchronous lifting device of super low temperature quick frozen production line according to any one of claim 1 to 3, feature
It is：It is provided with accumulator on the pipeline that second port A of two position four-way solenoid valves is connected with rod chamber, it is described
Accumulator provides a lower pressure for upper cover plate, and the sealing element fully deformed between upper cover plate and lower plate is made to reach sealing effect
Fruit avoids cool air leakage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820625479.1U CN208150880U (en) | 2018-04-28 | 2018-04-28 | A kind of synchronous lifting device of super low temperature quick frozen production line |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820625479.1U CN208150880U (en) | 2018-04-28 | 2018-04-28 | A kind of synchronous lifting device of super low temperature quick frozen production line |
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| CN208150880U true CN208150880U (en) | 2018-11-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108373129A (en) * | 2018-04-28 | 2018-08-07 | 浙江大学舟山海洋研究中心 | The synchronous lifting device of super low temperature quick frozen production line |
-
2018
- 2018-04-28 CN CN201820625479.1U patent/CN208150880U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108373129A (en) * | 2018-04-28 | 2018-08-07 | 浙江大学舟山海洋研究中心 | The synchronous lifting device of super low temperature quick frozen production line |
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