CN209261944U - A kind of three cylinder synchronization lifting mechanisms - Google Patents
A kind of three cylinder synchronization lifting mechanisms Download PDFInfo
- Publication number
- CN209261944U CN209261944U CN201822248105.5U CN201822248105U CN209261944U CN 209261944 U CN209261944 U CN 209261944U CN 201822248105 U CN201822248105 U CN 201822248105U CN 209261944 U CN209261944 U CN 209261944U
- Authority
- CN
- China
- Prior art keywords
- fuel tank
- oil cylinder
- oil
- synchronous fuel
- rod chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 11
- 230000001360 synchronised effect Effects 0.000 claims abstract description 49
- 239000002828 fuel tank Substances 0.000 claims abstract description 44
- 238000007789 sealing Methods 0.000 claims description 6
- 239000003921 oil Substances 0.000 description 54
- 239000007788 liquid Substances 0.000 description 6
- 239000012530 fluid Substances 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Actuator (AREA)
Abstract
The utility model discloses a kind of three cylinder synchronization lifting mechanisms.The utility model includes two identical first order oil cylinders and a second level oil cylinder.Second level oil cylinder has III 3 the first rod chamber I, the second rod chamber II and rodless cavity parts, and a first order oil cylinder A is connected by the oil-through-hole opened up on oil pipe and secondary synchronization cylinder side wall, which is connected to the rod chamber I of synchronous fuel tank；Another first order oil cylinder B is connected by the oil-through-hole opened up on oil pipe and secondary synchronization oil cylinder bottom plate, which is connected by the oil circuit inside synchronous fuel tank base plate interior and synchronous fuel tank center-pole with rod chamber II.The utility model is simple and reliable for structure, and synchronization accuracy is high, can bear that unbalance loading is big, and does not need complicated synchronous control system, low in cost.
Description
Technical field
The utility model belongs to hydraulic drive and control technical field, is related to three cylinder synchronization mechanisms of elevator, press machine,
For a kind of mechanism that can realize that three cylinders are moved synchronously by oil cylinder own mechanical structure.
Background technique
Hydraulic system is usually used in needing the elevator of very big lifting force, in press machine, generally requires more in these applications
The movement of hydraulic cylinder high-precise synchronization.About multi-hydraulic-cylinder Synchronous motion control, there are many solutions for the prior art, for example,
It can be connected by multi-stage oil cylinder and realize synchronization；Position-force control is carried out using servo valve, electro-hydraulic proportional valve, realizes that multi-cylinder is same
Step；Or multi-cylinder synchronous control is realized using synchronous valve, flow divider.But above-mentioned technical proposal has the following problems: (1) machine
Tool formula series connection synchronous fuel tank, when serial connection technology is greater than 2 grades, bottom oil cylinder load is excessive, is easily damaged, and (2) are using shunting
Valve, then synchronization accuracy is lower, and (3) carry out closed-loop control using servo valve, electro-hydraulic proportional valve, although available higher control essence
Degree, but system complex, cost are very high.
Summary of the invention
The purpose of the utility model is to overcome above-mentioned technical deficiencies, provide a kind of three cylinder synchronization mechanisms.
The utility model includes two identical first order oil cylinders and a second level oil cylinder, the second level oil
Cylinder is synchronous fuel tank, is made of top cover, bottom plate, side wall, newel and annular hollow formula piston rod, they will be synchronized jointly
Oil cylinder cavity is divided into III 3 the first rod chamber I, the second rod chamber II and rodless cavity parts, wherein the second rod chamber II is in
Annular hollow formula piston rod inner.
One of first order oil cylinder A is connected by the oil-through-hole opened up on oil pipe and secondary synchronization cylinder side wall, should
The rod chamber I of oil-through-hole connection synchronous fuel tank；Another first order oil cylinder B on oil pipe and secondary synchronization oil cylinder bottom plate by opening up
Oil-through-hole be connected, which passes through the oil circuit and rod chamber II inside synchronous fuel tank base plate interior and synchronous fuel tank center-pole
It is connected.
The face of the I bottom annulus of the first rod chamber of the piston area and second level synchronous fuel tank of the first order oil cylinder A
Product is exactly the same；The piston area of the first order oil cylinder B and the II bottom annulus of the second rod chamber of second level synchronous fuel tank
Area it is exactly the same.
The oil-through-hole that the synchronous fuel tank rodless cavity III is equipped with by bottom plate is connected with external adjustable throttling, adjustable
Throttle valve is connect by two-bit triplet reversal valve with fuel tank for adjusting oil cylinder rise and fall speed, the adjustable throttling.
Furtherly, first order oil cylinder is ram cylinder.
Furtherly, the piston and center intercolumniation of the second level synchronous fuel tank, pacify between piston and inside sidewalls face
Equipped with sealing ring, it is ensured that second level synchronous fuel tank does not have interior leakage.
Furtherly, sealing ring is housed, it is ensured that second between the piston rod and upper end cover of the second level synchronous fuel tank
Grade synchronous fuel tank does not have outward leakage.
The beneficial effects of the utility model are: simple and reliable for structure, synchronization accuracy is high, it is big can to bear unbalance loading, and do not need
Complicated synchronous control system, it is low in cost.
Detailed description of the invention
Fig. 1 is three cylinder synchronization hydraulic system schematic diagrams.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing.
As shown in Figure 1, the technical scheme adopted by the utility model is first order oil cylinder A 7 and first order oil cylinder B 8 are
Two identical ram cylinders.Second level oil cylinder 6 is synchronous fuel tank, by top cover 66, bottom plate 62, side wall 65, center
Column 63 and annular hollow formula piston rod 64 form, and synchronous fuel tank cavity is divided into rod chamber I, II and of rod chamber jointly
III 3 parts of rodless cavity.Level-one oil cylinder A is connected by the oil-through-hole opened up on oil pipe and secondary synchronization cylinder side wall, the logical oil
The rod chamber I of hole connection synchronous fuel tank.Level-one oil cylinder B passes through the oil-through-hole phase opened up on oil pipe and secondary synchronization oil cylinder bottom plate
Even, which is connected by the oil circuit inside synchronous fuel tank base plate interior and synchronous fuel tank center-pole with rod chamber II.
Wherein the piston area of first order oil cylinder A and the area of the I bottom annulus of rod chamber of second level synchronous fuel tank are stringent
It is identical.And the piston area of first order oil cylinder B and the area of the II bottom annulus of rod chamber of second level synchronous fuel tank are exactly the same.
The piston and center intercolumniation of second level synchronous fuel tank are mounted on sealing ring between piston and inside sidewalls face, it is ensured that the second level
Synchronous fuel tank does not have interior leakage.Sealing ring is housed, it is ensured that the second level is same between the piston rod and upper end cover of second level synchronous fuel tank
Step oil cylinder does not have outward leakage.Synchronous fuel tank rodless cavity III is equipped with oil-through-hole by bottom plate and is connected with external adjustable throttling, can
Flow regulating valve is for adjusting oil cylinder rise and fall speed.
When two-bit triplet reversal valve is located at normal position, adjustable throttling is connected with hydraulic pump, it, can when being located at act bit
Flow regulating valve is connected with fuel tank, so that three cylinders of control rise or fall.First order oil cylinder A, first order oil cylinder B and the second level are same
All cavities for walking oil cylinder empty air at work, are full of hydraulic oil.
The course of work of the utility model: when the mechanism works, need to guarantee first order oil cylinder A 7, first order oil cylinder B 8,
And oil liquid is each filled in all cavities and all connecting lines of second level synchronous fuel tank 6, empty air.When hydraulic pump 1
It opens, and when two-position three-way valve 4 is located at normal position, hydraulic oil is entered by adjustable throttling 5 and the entrance of oil-through-hole 61 second level is same
In the rodless cavity III for walking cylinder 6, the piston 64 of second level synchronous fuel tank 6 and piston rod 67 is pushed to move up, movement speed is by can
Flow regulating valve 5 controls, and the maximum pressure of rodless cavity III is set up by overflow valve 2.When the piston 64 and piston of second level synchronous fuel tank 6
When bar 67 moves up, I cavity volume of rod chamber is reduced, and oil liquid is entered in first order oil cylinder A 7 by logical hydraulic fluid port 68, because the
The piston area of level-one oil cylinder A 7 and the area of I bottom annulus of rod chamber are exactly the same, so the work of second level synchronous fuel tank 6
67 climb of stopper rod is identical with the climb of first order oil cylinder A 7.Similarly, the oil liquid in rod chamber II passes through logical oil
Mouth 69 enters in first order oil cylinder B 8, because the piston area of first order oil cylinder B 8 and the area of II bottom annulus of rod chamber are tight
Lattice are identical, so the complete phase of climb of 67 climb of piston rod of second level synchronous fuel tank 6 and first order oil cylinder B 8
Together.To realize the precise synchronization of three cylinders.
After two-position three-way valve 4 acts, adjustable throttling 5 is communicated with fuel tank 3, and three oil cylinders are in the pushing of ballast load
The lower decline of power effect.Oil liquid in first order oil cylinder A 7 enters rod chamber I by logical hydraulic fluid port 68, and in first order oil cylinder B 8
Oil liquid enters rod chamber II by logical hydraulic fluid port 69, and the oil liquid in rodless cavity enters fuel tank by adjustable throttling.Because of the first order
The piston area of oil cylinder A 7 and the area of I bottom annulus of rod chamber are exactly the same, and the piston area of first order oil cylinder B 8 with
The area of II bottom annulus of rod chamber is exactly the same, it is ensured that even if the decrease speed of three cylinders is still identical there are unbalance loading, from
And it realizes and synchronizes.
Claims (4)
1. a kind of three cylinder synchronization lifting mechanisms, including two identical first order oil cylinders and a second level oil cylinder, special
Sign is:
The second level oil cylinder is synchronous fuel tank, by top cover, bottom plate, side wall, newel and annular hollow formula piston rod
Composition, synchronous fuel tank cavity is divided into III 3 the first rod chamber I, the second rod chamber II and rodless cavity parts jointly by them,
Wherein the second rod chamber II is in annular hollow formula piston rod inner；
One of first order oil cylinder A is connected by the oil-through-hole opened up on oil pipe and secondary synchronization cylinder side wall, the logical oil
The rod chamber I of hole connection synchronous fuel tank；Another first order oil cylinder B is logical by what is opened up on oil pipe and secondary synchronization oil cylinder bottom plate
Oilhole is connected, which is connected by the oil circuit inside synchronous fuel tank base plate interior and synchronous fuel tank center-pole with rod chamber II
It is logical；
The piston area of the first order oil cylinder A and the area of the I bottom annulus of the first rod chamber of second level synchronous fuel tank are tight
Lattice are identical；The face of the II bottom annulus of the second rod chamber of the piston area and second level synchronous fuel tank of the first order oil cylinder B
Product is exactly the same；
The oil-through-hole that the synchronous fuel tank rodless cavity III is equipped with by bottom plate is connected with external adjustable throttling, adjustable throttling
Valve is connect by two-bit triplet reversal valve with fuel tank for adjusting oil cylinder rise and fall speed, the adjustable throttling.
2. a kind of three cylinders synchronization lifting mechanism according to claim 1, it is characterised in that: first order oil cylinder is plunger type oil
Cylinder.
3. a kind of three cylinders synchronization lifting mechanism according to claim 1, it is characterised in that: the second level synchronous fuel tank
Piston and center intercolumniation, piston and inside sidewalls face between be mounted on sealing ring, it is ensured that second level synchronous fuel tank is without interior
Leakage.
4. a kind of three cylinders synchronization lifting mechanism according to claim 1, it is characterised in that: the second level synchronous fuel tank
Piston rod and upper end cover between be equipped with sealing ring, it is ensured that second level synchronous fuel tank does not have outward leakage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822248105.5U CN209261944U (en) | 2018-12-29 | 2018-12-29 | A kind of three cylinder synchronization lifting mechanisms |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822248105.5U CN209261944U (en) | 2018-12-29 | 2018-12-29 | A kind of three cylinder synchronization lifting mechanisms |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209261944U true CN209261944U (en) | 2019-08-16 |
Family
ID=67584026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822248105.5U Withdrawn - After Issue CN209261944U (en) | 2018-12-29 | 2018-12-29 | A kind of three cylinder synchronization lifting mechanisms |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209261944U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109458369A (en) * | 2018-12-29 | 2019-03-12 | 浙江大学舟山海洋研究中心 | Three cylinder synchronization lifting mechanisms |
-
2018
- 2018-12-29 CN CN201822248105.5U patent/CN209261944U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109458369A (en) * | 2018-12-29 | 2019-03-12 | 浙江大学舟山海洋研究中心 | Three cylinder synchronization lifting mechanisms |
| CN109458369B (en) * | 2018-12-29 | 2023-10-27 | 浙江大学舟山海洋研究中心 | Three-cylinder synchronous lifting mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190816 Effective date of abandoning: 20231027 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20190816 Effective date of abandoning: 20231027 |