CN207375684U - A kind of synchronous lifting device of liquid nitrogen flash freezer production line platform - Google Patents
A kind of synchronous lifting device of liquid nitrogen flash freezer production line platform Download PDFInfo
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- CN207375684U CN207375684U CN201721453210.1U CN201721453210U CN207375684U CN 207375684 U CN207375684 U CN 207375684U CN 201721453210 U CN201721453210 U CN 201721453210U CN 207375684 U CN207375684 U CN 207375684U
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- hydraulic cylinder
- way solenoid
- production line
- supporting leg
- liquid nitrogen
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Abstract
The utility model discloses a kind of synchronous lifting devices of liquid nitrogen flash freezer production line platform.The utility model is mainly made of hydraulic cylinder supporting leg, two position four-way solenoid valves, overflow valve, check valve, six gear pumps and variable-frequency motor.Six gear pumps are made of six gear pump coaxial parallel-connections, are driven simultaneously by a variable-frequency motor, it is ensured that the output flow of each gear pump is identical；The oil outlet end connection check valve and overflow valve of each gear pump, check valve oil outlet end connect two position four-way solenoid valves, and two position four-way solenoid valve oil inlet and outlets are connected with hydraulic cylinder supporting leg；Six two position four-way solenoid valves act simultaneously during work, it is ensured that six hydraulic cylinder supporting leg synchronization actions make liquid nitrogen flash freezer production line platform smoothly be promoted.
Description
Technical field
The utility model is related to a kind of synchronous lifting devices of liquid nitrogen flash freezer production line platform.
Background technology
Liquid nitrogen flash freezer production line be mainly used for the mass of marine product raw food it is quick-frozen, using needed after a period of time to production
The inner space of line is cleaned, avoid equipment because marine product residue it is corrupt due to it is smelly, influence next time marine product life
Production.Therefore liquid nitrogen flash freezer production line need to be cleaned regularly internal volume.
The lifting gear of the quick-frozen production line platform of traditional hydraulic pressure is mainly electronic screw body, motor drives screw mandrel machine
Structure slowly promotes platform.Electric threaded shaft mechanism assembly precision and control accuracy needed for six supporting leg Synchronous lifting of platform is higher,
Stuck phenomenon easily occurs during equipment lifting, and the higher service life of cost is short.Traditional hydraulic lift, multi-cylinder synchronous base
This is all realized by flow divider-combiner（It is concentrated mainly on four cylinders）, but six cylinders synchronously realize exist and be using flow divider-combiner
The problem of system is complicated, cost is higher, and synchronous effect is poor.
The content of the invention
The utility model is in view of the deficiencies of the prior art, it is proposed that a kind of arrangement is convenient, simple in structure, cost is relatively low and makes
With the hydraulic synchronous lifting device lasted a long time.
In order to solve the above technical problems, the technical solution adopted in the utility model is：
The utility model mainly by hydraulic cylinder supporting leg, two position four-way solenoid valves, overflow valve, check valve, six gear pumps and
Variable-frequency motor forms.Six gear pumps are made of six gear pump coaxial parallel-connections, are driven simultaneously by a variable-frequency motor,
Ensure that the output flow of each gear pump is identical；The oil outlet end connection check valve and overflow valve, check valve of each gear pump are fuel-displaced
Two position four-way solenoid valves of end connection, two position four-way solenoid valve oil inlet and outlets are connected with hydraulic cylinder supporting leg；Six two four during work
Three-way electromagnetic valve acts simultaneously, it is ensured that six hydraulic cylinder supporting leg synchronization actions make liquid nitrogen flash freezer production line platform smoothly be promoted.
The utility model is rotated synchronously using six gear pumps, i.e., the output flow each pumped is identical, makes six hydraulic cylinder supporting legs
Lifting speed is identical, so that liquid nitrogen flash freezer production line platform smoothly lifts.
Description of the drawings
Fig. 1 is the hydraulic system principle figure of synchronous lifting device；
Fig. 2 is the isometric figure of hydraulic cylinder supporting leg；
Fig. 3 is the front view of hydraulic cylinder supporting leg；
Fig. 4 is the top view of hydraulic cylinder supporting leg.
Specific embodiment
Below in conjunction with attached drawing, the utility model is described in further detail：
As shown in Figure 1, the present embodiment mainly by hydraulic cylinder supporting leg 7, two position four-way solenoid valves 6, overflow valve 4, check valve 5,
Six gear pumps 3, fuel tank 2 and variable-frequency motor 1 form, wherein six gear pumps are made of six gear pump coaxial parallel-connections, by one
A servomotor drives simultaneously, it is ensured that the flow each pumped is identical.The oil outlet end connection check valve 5 of each gear pump 3 and overflow
Valve 4,5 oil outlet end of check valve all connect two position four-way solenoid valves 6, and 6 oil inlet and outlet of solenoid valve is connected with hydraulic cylinder supporting leg 7, electromagnetism
Right position is in when valve 6 powers off.Six solenoid valves act simultaneously when system works, and such six hydraulic cylinders supporting leg synchronization action makes
Liquid nitrogen flash freezer production line platform is smoothly promoted, and avoids that stuck phenomenon occurs due to the lifting of hydraulic cylinder supporting leg is asynchronous.Hydraulic pressure system
Play the role of hydraulic lock when system cut-off there are one check valve 5 in each sub-loop in system, prevent hydraulic cylinder because of power-off
Or other reasons and drop occurs.
Six gear pumps in the present embodiment are the output flow phase for controlling each gear pump with a motor-driven effect
Deng, i.e. the oil inlet quantity of oil cylinder is equal in six hydraulic cylinder supporting legs, make six supporting legs promoted speed be consistent, platform smoothly rises
Drop.When platform rises, the right position of solenoid valve holding is motionless, and the fluid of gear pump enters hydraulic cylinder rodless cavity, six hydraulic cylinder supporting legs
Synchronous lifting.When platform declines, solenoid valve reversal valve is opened, the output fluid of gear pump enters hydraulic cylinder supporting leg rod chamber,
Then six hydraulic cylinder supporting legs synchronously decline.Check valve plays the role of hydraulic lock when platform hovers and declines in the present embodiment, keeps away
Exempt from hydraulic cylinder to fall after rise when system is closed.
As shown in Figures 2 to 4, the hydraulic cylinder supporting leg 7 of the utility model is by hydraulic cylinder 7-3, supporting leg frame 7-2 and piston rod
Connecting flange 7-4 framves form, and hydraulic cylinder body upper flange 7-1 at the top of supporting leg frame 7-2 with being connected, supporting leg frame 7-2 lower parts
Ground connection, frame facet flange 7-5 are connected with liquid nitrogen flash freezer production line bottom platform, play the role of integrated support.Hydraulic cylinder 7-3 with
Piston cylinder connecting flange 7-4 is fixedly connected with pin, and piston cylinder connecting flange 7-4 is connected with liquid nitrogen flash freezer production line upper brace,
When hydraulic cylinder piston rod is promoted, liquid nitrogen flash freezer production line upper brace is promoted therewith.Solenoid valve and check valve integrate hydraulic pressure again
On cylinder supporting leg frame.
The course of work：When liquid nitrogen flash freezer production line platform need to promote cleaning inner space, motor is opened, starts hydraulic pressure
Pump, when two position four-way valves are in right position, at this moment high-voltage oil liquid is connected with hydraulic cylinder supporting leg rodless cavity, hydraulic cylinder supporting leg rod chamber oil
Liquid oil return box, six hydraulic cylinder supporting legs are synchronous slowly to be promoted.Liquid is closed when liquid nitrogen flash freezer production line platform reaches precalculated position
Press pump, two position four-way valves are still in right position, and check valve, which plays the role of hydraulic lock, makes hydraulic cylinder stop on a predetermined position, at this moment worker
It can be to being cleaned inside liquid nitrogen flash freezer production line.When the energization of two position four-way valves is opened when cleaning is completed in left position, liquid
Press pump opens simultaneously, and at this moment high-voltage oil liquid is connected with hydraulic cylinder supporting leg rod chamber, the fluid oil return box of hydraulic cylinder supporting leg rodless cavity,
Six hydraulic cylinder supporting legs synchronously decline.
Claims (1)
1. a kind of synchronous lifting device of liquid nitrogen flash freezer production line platform, mainly by hydraulic cylinder supporting leg, two position four-way solenoid valves, overflow
Flow valve, check valve, six gear pumps and variable-frequency motor composition, it is characterised in that：Six gear pumps are by six gear pumps
Coaxial parallel-connection forms, and is driven simultaneously by a variable-frequency motor, it is ensured that the output flow of each gear pump is identical；Each gear pump
Oil outlet end connects check valve and overflow valve, and check valve oil outlet end connects two position four-way solenoid valves, and two position four-way solenoid valves are into fuel-displaced
Mouth is connected with hydraulic cylinder supporting leg；Six two position four-way solenoid valves act simultaneously during work, it is ensured that six hydraulic cylinder supporting legs are synchronously dynamic
Make, liquid nitrogen flash freezer production line platform is made smoothly to be promoted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721453210.1U CN207375684U (en) | 2017-11-03 | 2017-11-03 | A kind of synchronous lifting device of liquid nitrogen flash freezer production line platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721453210.1U CN207375684U (en) | 2017-11-03 | 2017-11-03 | A kind of synchronous lifting device of liquid nitrogen flash freezer production line platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207375684U true CN207375684U (en) | 2018-05-18 |
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ID=62334913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721453210.1U Active CN207375684U (en) | 2017-11-03 | 2017-11-03 | A kind of synchronous lifting device of liquid nitrogen flash freezer production line platform |
Country Status (1)
| Country | Link |
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| CN (1) | CN207375684U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107746024A (en) * | 2017-11-03 | 2018-03-02 | 浙江大学舟山海洋研究中心 | Liquid nitrogen flash freezer produces the synchronous lifting device of line platform |
| CN110405364A (en) * | 2019-08-29 | 2019-11-05 | 佛山市宏石激光技术有限公司 | A kind of suspension type self-balancing hydraulic lift |
-
2017
- 2017-11-03 CN CN201721453210.1U patent/CN207375684U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107746024A (en) * | 2017-11-03 | 2018-03-02 | 浙江大学舟山海洋研究中心 | Liquid nitrogen flash freezer produces the synchronous lifting device of line platform |
| CN110405364A (en) * | 2019-08-29 | 2019-11-05 | 佛山市宏石激光技术有限公司 | A kind of suspension type self-balancing hydraulic lift |
| CN110405364B (en) * | 2019-08-29 | 2023-09-19 | 广东宏石激光技术股份有限公司 | Suspension type self-balancing hydraulic lifting device |
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