CN208471475U - One kind can stay pallet load push-pull dedicated hydraulic system - Google Patents
One kind can stay pallet load push-pull dedicated hydraulic system Download PDFInfo
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- CN208471475U CN208471475U CN201820782267.4U CN201820782267U CN208471475U CN 208471475 U CN208471475 U CN 208471475U CN 201820782267 U CN201820782267 U CN 201820782267U CN 208471475 U CN208471475 U CN 208471475U
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Abstract
Pallet load push-pull dedicated hydraulic system can be stayed, the first oil pipe is connected between hydraulic control multichannel main valve A oil inlet and preceding ram cylinder, the second oil pipe is connected between B oil inlet and preceding ram cylinder, third oil pipe is connected between first oil pipe and rear ram cylinder, third oil pipe is equipped with the first check valve, solenoid directional control valve is mounted on third oil pipe, and connection commutation oil pipe, the 4th oil pipe is connected between first oil pipe and rear ram cylinder, 4th oil pipe is equipped with second one-way valve, the 5th oil pipe is connected between first oil pipe and push plate oil cylinder, first sequence valve is mounted on the 5th oil pipe, the 6th oil pipe is connected between second oil pipe and the 4th oil pipe, 6th oil pipe is equipped with third check valve, the 7th oil pipe is connected between second oil pipe and third oil pipe, 7th oil pipe is equipped with the 4th check valve, is connected between second oil pipe and the rod chamber of push plate oil cylinder Eight oil pipes, the second sequence valve are mounted on the 5th oil pipe.Have the advantages that it is simple to operate, not easy to make mistakes, can Automatic-clamping.
Description
Technical field
The utility model relates generally to stay pallet load push-pull control technology more particularly to one kind that pallet load push-pull can be stayed special
Use hydraulic system.
Background technique
Pallet load push-pull can be stayed to be highly suitable for the handling operation of bag cargo, greatly as one kind of lift truck attachment
Labor efficiency is improved, application is more and more extensive.
Pallet load push-pull can be stayed, and there are four movements altogether, one of them traversing movement is more independent, and the other three movement needs
It wants mutually coordinated, acts in sequence, these three movements are respectively as follows: rear pressure head and promote decline, preceding pressure head promotion decline and push plate
It releases and retracts, three movements are controlled by a piece of manual multiple-way valve.As shown in Figure 1, in the prior art stay pallet load push-pull special
With hydraulic system comprising hydraulic control multichannel main valve 1, preceding ram cylinder 2, rear ram cylinder 3, push plate oil cylinder 4, solenoid directional control valve 5,
First sequence valve 6 and the second sequence valve 7, sequence of movement is as follows:
1, A oil inlet oil inlet, solenoid directional control valve 5 must not be electric, then preceding ram cylinder 2 retracts, and reach the unlatching of the first sequence valve 6
After pressure, push plate oil cylinder 4 is released；
2, B oil inlet oil inlet, solenoid directional control valve 5 must not be electric, then preceding ram cylinder 2 stretches out, and reach the unlatching of the second sequence valve 7
After pressure, push plate oil cylinder 4 is retracted；
3, A oil inlet oil inlet, solenoid directional control valve 5 must be electric, then preceding ram cylinder 2 and rear ram cylinder 3 move at the same time, preceding pressure
Hair oil cylinder 2 retracts, and rear ram cylinder 3 stretches out, and push plate oil cylinder 4 is failure to actuate；
4, B oil inlet oil inlet, solenoid directional control valve 5 must be electric, then preceding ram cylinder 2 and rear ram cylinder 3 move at the same time, preceding pressure
Hair oil cylinder 2 stretches out, and rear ram cylinder 3 retracts, and push plate oil cylinder 4 is failure to actuate.
As can be seen that traditional scheme needs four combinations that could complete a working cycles, and it is complicated for operation, it is sequentially easy to do
Mistake, if position is not accomplished in movement 4, rear pressure head cannot be compressed；Its is not energy-efficient simultaneously, and calorific value is big.
Utility model content
The technical problems to be solved in the utility model be overcome the deficiencies of the prior art and provide it is a kind of it is simple to operate,
It is not easy to make mistakes, self-holding can stay pallet load push-pull dedicated hydraulic system.
In order to solve the above technical problems, the utility model uses following technical scheme:
One kind can stay pallet load push-pull dedicated hydraulic system, including hydraulic control multichannel main valve, preceding ram cylinder, rear pressure head oil
Cylinder, push plate oil cylinder, solenoid directional control valve, the first sequence valve and the second sequence valve, the A oil inlet of the hydraulic control multichannel main valve and preceding pressure
The first oil pipe is connected between the rod chamber of hair oil cylinder, the B oil inlet of the hydraulic control multichannel main valve is with preceding ram cylinder without bar
It is connected with the second oil pipe between chamber, third oil pipe is connected between first oil pipe and the rodless cavity of rear ram cylinder, it is described
Third oil pipe is equipped with the flow direction of the first check valve and the first check valve towards A oil inlet, and the solenoid directional control valve is mounted on the
Be connected with commutation oil pipe on three oil pipes and between solenoid directional control valve and the first oil pipe, solenoid directional control valve be located at the first check valve with
Afterwards between ram cylinder, the 4th oil pipe, the 4th oil are connected between first oil pipe and the rod chamber of rear ram cylinder
Pipe be equipped with the flow direction of second one-way valve and second one-way valve with the flow direction of the first check valve on the contrary, first oil pipe with push away
The 5th oil pipe is connected between the rodless cavity of leaf fat cylinder, first sequence valve is mounted on the 5th oil pipe, second oil pipe
It is connected with the 6th oil pipe between the 4th oil pipe, the tie point of the 6th oil pipe and the 4th oil pipe is located at second one-way valve and rear pressure head
Between oil cylinder, flow direction of the 6th oil pipe equipped with third check valve and third check valve flows to phase with second one-way valve
Together, it is connected with the 7th oil pipe between second oil pipe and third oil pipe, the tie point of the 7th oil pipe and third oil pipe is located at the
Between one check valve and solenoid directional control valve, the 7th oil pipe is equipped with the flow direction and first of the 4th check valve, the 4th check valve
Flowing to for check valve is identical, and the 8th oil pipe is connected between second oil pipe and the rod chamber of push plate oil cylinder, and described second is suitable
Sequence valve is mounted on the 5th oil pipe.
As a further improvement of the above technical scheme:
Second oil pipe is equipped with the 5th check valve, and the flow direction of the 5th check valve is towards preceding ram cylinder, and the 5th
First pressure oil pipe is equipped between check valve and the first oil pipe.
Second pressure oil pipe is equipped between the third check valve and third oil pipe.
First sequence valve is set as internal control and leaks to jump box-like sequence valve, and the internal control, which leaks, jumps box-like sequence valve and pass through
Outer drain mast is connect with second one-way valve, and second one-way valve is set as reversed check valve.
Second sequence valve is set as jumping box-like overflow valve.
The solenoid directional control valve is set as two-bit triplet solenoid directional control valve.
The solenoid directional control valve is set as two-bit triplet solenoid directional control valve.
Compared with the prior art, the advantages of the utility model are:
The utility model stays pallet load push-pull dedicated hydraulic system, and when use is divided into three movements, movement one: passes through
Hydraulic control multichannel main valve controls the oil inlet of A oil inlet, then hydraulic oil is through the first oil pipe into the rod chamber of preceding ram cylinder, through the second oil
Pipe is back to hydraulic control multichannel main valve, this circuit drives preceding ram retracts；At the same time, the hydraulic oil of the first oil pipe also passes through the 4th
Oil pipe enters the rod chamber of rear ram cylinder, flow to the 7th oil pipe again after the barrier action of the first check valve by third oil pipe
It is back to hydraulic control multichannel main valve through the second oil pipe, this circuit drives rear ram retracts；At the same time, the hydraulic oil of the first oil pipe is also
Enter the first sequence valve by the 5th oil pipe, reaches the rodless cavity for entering push plate oil cylinder after the cracking pressure of the first sequence valve, warp
8th oil pipe flow to the second oil pipe and is back to hydraulic control multichannel main valve again, this circuit drives push plate to be stretched out；Movement two: more by hydraulic control
Road main valve controls the oil inlet of B oil inlet, then hydraulic oil flows back through the second oil pipe into the rodless cavity of preceding ram cylinder, through the first oil pipe
To hydraulic control multichannel main valve, pressure head stretches out before this circuit drives；At the same time, the hydraulic oil of the second oil pipe also pass through the 6th oil pipe into
Enter the rod chamber of rear ram cylinder, the first oil pipe is flow to through third oil pipe be back to hydraulic control multichannel main valve again, after this circuit drives
Pressure head is motionless (retraction)；At the same time, the hydraulic oil of the second oil pipe also passes through the 8th oil pipe and enters the rod chamber of push plate oil cylinder, reaches
It is back to hydraulic control multichannel main valve through the first oil pipe after to the cracking pressure of the second sequence valve, this circuit drives push plate to retract；Movement
Three: pass through hydraulic control multichannel main valve A oil inlet oil inlet and control the mobile commutation of solenoid directional control valve, then hydraulic oil through the first oil pipe into
Enter the rod chamber of preceding ram cylinder, be back to hydraulic control multichannel main valve through the second oil pipe, this circuit drives preceding ram retracts；It is same with this
When, the hydraulic oil of the first oil pipe also pass through commutation oil pipe through solenoid directional control valve by third oil pipe enter after ram cylinder without bar
Chamber flow to the second oil pipe by the 6th oil pipe and is back to hydraulic control multichannel main valve again, this circuit drives rear pressure head to stretch out；It is same with this
When, since cracking pressure is not achieved in the first sequence valve after solenoid directional control valve commutation, therefore push plate is motionless.It is by above-mentioned movement it is found that logical
Crossing the dedicated hydraulic system only needs three movements that can complete correlation function；Sequence of movement is simple, not easy to make mistakes；Front and back pressure
Head, which can reach certain value just with Automatic-clamping, clamping pressure, next movement.
Detailed description of the invention
Fig. 1 is the oil circuit figure of prior art hydraulic system.
Fig. 2 is the oil circuit figure (solenoid directional control valve must not be electric) of the utility model.
Fig. 3 is the oil circuit figure (solenoid directional control valve obtains electric) of the utility model.
Each label indicates in figure:
1, hydraulic control multichannel main valve；2, preceding ram cylinder；3, rear ram cylinder；4, push plate oil cylinder；5, solenoid directional control valve；6,
One sequence valve；7, the second sequence valve；8, the first oil pipe；9, the second oil pipe；10, third oil pipe；11, the first check valve；12, it commutates
Oil pipe；13, the 4th oil pipe；14, second one-way valve；15, the 5th oil pipe；16, the 6th oil pipe；17, third check valve；18, the 7th
Oil pipe；19, the 4th check valve；20, the 8th oil pipe；21, the 5th check valve；22, first pressure oil pipe；23, second pressure oil pipe；
24, outer drain mast.
Specific embodiment
The utility model is described in further details below with reference to Figure of description and specific embodiment.
As shown in Figures 2 and 3, the present embodiment stays pallet load push-pull dedicated hydraulic system, including hydraulic control multichannel main valve
1, preceding ram cylinder 2, rear ram cylinder 3, push plate oil cylinder 4, solenoid directional control valve 5, the first sequence valve 6 and the second sequence valve 7, hydraulic control
Be connected with the first oil pipe 8 between the A oil inlet of multichannel main valve 1 and the rod chamber of preceding ram cylinder 2, the B of hydraulic control multichannel main valve 1 into
Be connected with the second oil pipe 9 between hydraulic fluid port and the rodless cavity of preceding ram cylinder 2, the rodless cavity of the first oil pipe 8 and rear ram cylinder 3 it
Between be connected with third oil pipe 10, third oil pipe 10 is equipped with the flow direction of the first check valve 11 and the first check valve 11 towards A oil inlet
Mouthful, solenoid directional control valve 5 is mounted on third oil pipe 10 and is connected with commutation oil pipe between solenoid directional control valve 5 and the first oil pipe 8
12, for solenoid directional control valve 5 between the first check valve 11 and rear ram cylinder 3, the first oil pipe 8 has bar with rear ram cylinder 3
It is connected with the 4th oil pipe 13 between chamber, the 4th oil pipe 13 is equipped with second one-way valve 14 and the flow direction of second one-way valve 14 and the
The flow direction of one check valve 11 is on the contrary, be connected with the 5th oil pipe 15 between the first oil pipe 8 and the rodless cavity of push plate oil cylinder 4, first is suitable
Sequence valve 6 is mounted on the 5th oil pipe 15, and the 6th oil pipe 16, the 6th oil pipe 16 are connected between the second oil pipe 9 and the 4th oil pipe 13
For tie point with the 4th oil pipe 13 between second one-way valve 14 and rear ram cylinder 3, the 6th oil pipe 16 is equipped with third list
It is identical as flowing to for second one-way valve 14 to the flow direction of valve 17 and third check valve 17, between the second oil pipe 9 and third oil pipe 10
It is connected with the 7th oil pipe 18, the tie point of the 7th oil pipe 18 and third oil pipe 10 is located at the first check valve 11 and solenoid directional control valve 5
Between, flow direction of the 7th oil pipe 18 equipped with the 4th check valve 19, the 4th check valve 19 is identical as flowing to for the first check valve 11,
The 8th oil pipe 20 is connected between second oil pipe 9 and the rod chamber of push plate oil cylinder 4, the second sequence valve 7 is mounted on the 5th oil pipe 15
On.
It is divided into three movements when use, movement one: the oil inlet of A oil inlet is controlled by hydraulic control multichannel main valve 1, then hydraulic oil passes through
First oil pipe 8 enters the rod chamber of preceding ram cylinder 2, is back to hydraulic control multichannel main valve 1 through the second oil pipe 9, before this circuit drives
Ram retracts；At the same time, the hydraulic oil of the first oil pipe 8 also passes through the 4th oil pipe 13 and enters the rod chamber of rear ram cylinder 3, leads to
Third oil pipe 10 is crossed to flow to the 7th oil pipe 18 after the barrier action of the first check valve 11 to be back to hydraulic control through the second oil pipe 9 again more
Road main valve 1, this circuit drive rear ram retracts；At the same time, the hydraulic oil of the first oil pipe 8 also passes through the 5th oil pipe 15 and enters the
One sequence valve 6 reaches and enters the rodless cavity of push plate oil cylinder 4 after the cracking pressure of the first sequence valve 6, flow to the through the 8th oil pipe 20
Two oil pipes 9 are back to hydraulic control multichannel main valve 1 again, this circuit drives push plate to be stretched out；
Movement two: the oil inlet of B oil inlet is controlled by hydraulic control multichannel main valve 1, then hydraulic oil enters preceding pressure head through the second oil pipe 9
The rodless cavity of oil cylinder 2 is back to hydraulic control multichannel main valve 1 through the first oil pipe 8, and pressure head stretches out before this circuit drives；At the same time,
The hydraulic oil of two oil pipes 9 also passes through the 6th oil pipe 16 and enters the rod chamber of rear ram cylinder 3, flow to the first oil through third oil pipe 10
Pipe 8 is back to hydraulic control multichannel main valve 1 again, this circuit drives rear pressure head motionless (retraction)；At the same time, the second oil pipe 9 is hydraulic
Oil also enter the rod chamber of push plate oil cylinder 4 by the 8th oil pipe 20, reach the cracking pressure of the second sequence valve 7 after through the first oil pipe
8 are back to hydraulic control multichannel main valve 1, this circuit drives push plate to retract；
Movement three: passing through the 1 A oil inlet oil inlet of hydraulic control multichannel main valve and controls the mobile commutation of solenoid directional control valve 5, then hydraulic
Oil enters the rod chamber of preceding ram cylinder 2 through the first oil pipe 8, is back to hydraulic control multichannel main valve 1 through the second oil pipe 9, this circuit is driven
Make preceding ram retracts；At the same time, the hydraulic oil of the first oil pipe 8 also passes through commutation oil pipe 12 and passes through third through solenoid directional control valve 5
Oil pipe 10 enters the rodless cavity of rear ram cylinder 3, flow to the second oil pipe 9 by the 6th oil pipe 16 and be back to hydraulic control multichannel main valve again
1, this circuit drives rear pressure head to stretch out；At the same time, unlatching pressure is not achieved in first sequence valve 6 after being commutated due to solenoid directional control valve 5
Power, therefore push plate is motionless.
By above-mentioned movement it is found that only needing three movements that can complete correlation function by the dedicated hydraulic system；It is dynamic
Work sequence is simple, not easy to make mistakes；Front and back pressure head, which can reach certain value just with Automatic-clamping, clamping pressure, next movement.
In the present embodiment, the second oil pipe 9 is equipped with the 5th check valve 21, and the flow direction of the 5th check valve 21 is oily towards preceding pressure head
Cylinder 2 is equipped with first pressure oil pipe 22 between the 5th check valve 21 and the first oil pipe 8.5th check valve 21 plays pressure maintaining effect,
To guarantee the pressing force of preceding pressure head, the 5th check valve 21 just opens oil return after being given to certain pressure by first pressure oil pipe 22.
In the present embodiment, second pressure oil pipe 23 is equipped between third check valve 17 and third oil pipe 10.In the structure, lead to
It crosses after second pressure oil pipe 23 is given to certain pressure, third check valve 17 just opens oil return.
In the present embodiment, the first sequence valve 6 is set as internal control and leaks to jump box-like sequence valve, and internal control, which leaks, jumps box-like sequence valve
It is connect by outer drain mast 24 with second one-way valve 14, second one-way valve 14 is set as reversed check valve.In the structure, hydraulic oil
It leaks through internal control and jumps box-like sequence valve and enter push plate oil cylinder 4, second one-way valve 14 is flow to by outer drain mast 24, so that this is pressed
Power increases, and reversed check valve is closed instead, so that hydraulic oil be forced to be back to hydraulic control multichannel main valve 1 through the 6th oil pipe 16.
In the present embodiment, the second sequence valve 7 is set as jumping box-like overflow valve.Jump box-like overflow valve and internal control leak jump it is box-like
Being used cooperatively for sequence valve is able to achieve energy conservation, without restriction loss.
In the present embodiment, solenoid directional control valve 5 is set as two-bit triplet solenoid directional control valve.
Although the utility model is disclosed as above with preferred embodiment, it is not intended to limit the utility model.It is any
Those skilled in the art, in the case where not departing from technical solutions of the utility model range, all using the disclosure above
Technology contents many possible changes and modifications are made to technical solutions of the utility model, or be revised as the equivalent of equivalent variations
Embodiment.Therefore, all contents without departing from technical solutions of the utility model, according to the utility model technical spirit to the above reality
Any simple modifications, equivalents, and modifications that example is done are applied, should all be fallen in the range of technical solutions of the utility model protection.
Claims (6)
1. one kind can stay pallet load push-pull dedicated hydraulic system, including hydraulic control multichannel main valve (1), preceding ram cylinder (2), rear pressure head
Oil cylinder (3), push plate oil cylinder (4), solenoid directional control valve (5), the first sequence valve (6) and the second sequence valve (7), it is characterised in that: institute
It states and is connected with the first oil pipe (8), the liquid between the A oil inlet of hydraulic control multichannel main valve (1) and the rod chamber of preceding ram cylinder (2)
It controls and is connected with the second oil pipe (9) between the B oil inlet of multichannel main valve (1) and the rodless cavity of preceding ram cylinder (2), first oil
It is connected with third oil pipe (10) between pipe (8) and the rodless cavity of rear ram cylinder (3), the third oil pipe (10) is equipped with first
The flow direction of check valve (11) and the first check valve (11) is mounted on third oil pipe towards A oil inlet, the solenoid directional control valve (5)
(10) commutation oil pipe (12) is connected on and between solenoid directional control valve (5) and the first oil pipe (8), solenoid directional control valve (5) is located at the
Between one check valve (11) and rear ram cylinder (3), connect between first oil pipe (8) and the rod chamber of rear ram cylinder (3)
It is connected to the 4th oil pipe (13), the 4th oil pipe (13) is equipped with the flow direction of second one-way valve (14) and second one-way valve (14)
Flow direction with the first check valve (11) is on the contrary, be connected with the 5th between first oil pipe (8) and the rodless cavity of push plate oil cylinder (4)
Oil pipe (15), first sequence valve (6) are mounted on the 5th oil pipe (15), second oil pipe (9) and the 4th oil pipe (13)
Between be connected with the 6th oil pipe (16), the tie point of the 6th oil pipe (16) and the 4th oil pipe (13) be located at second one-way valve (14) and
Afterwards between ram cylinder (3), the 6th oil pipe (16) is equipped with the flow direction of third check valve (17) and third check valve (17)
It is identical as flowing to for second one-way valve (14), the 7th oil pipe is connected between second oil pipe (9) and third oil pipe (10)
(18), the tie point of the 7th oil pipe (18) and third oil pipe (10) is between the first check valve (11) and solenoid directional control valve (5),
7th oil pipe (18) is equipped with the stream of the 4th check valve (19), the flow direction of the 4th check valve (19) and the first check valve (11)
To identical, it is connected with the 8th oil pipe (20) between second oil pipe (9) and the rod chamber of push plate oil cylinder (4), described second is suitable
Sequence valve (7) is mounted on the 5th oil pipe (15).
2. according to claim 1 stay pallet load push-pull dedicated hydraulic system, it is characterised in that: second oil pipe
(9) it is equipped with the 5th check valve (21), the flow direction of the 5th check valve (21) is towards preceding ram cylinder (2), the 5th check valve
(21) first pressure oil pipe (22) are equipped between the first oil pipe (8).
3. according to claim 2 stay pallet load push-pull dedicated hydraulic system, it is characterised in that: the third check valve
(17) second pressure oil pipe (23) are equipped between third oil pipe (10).
4. according to any one of claim 1 to 3 stay pallet load push-pull dedicated hydraulic system, it is characterised in that: institute
It states the first sequence valve (6) to be set as internal control and leak to jump box-like sequence valve, the internal control, which leaks, jumps box-like sequence valve and pass through outer draining
Pipe (24) is connect with second one-way valve (14), and second one-way valve (14) is set as reversed check valve.
5. according to any one of claim 1 to 3 stay pallet load push-pull dedicated hydraulic system, it is characterised in that: institute
The second sequence valve (7) is stated to be set as jumping box-like overflow valve.
6. according to any one of claim 1 to 3 stay pallet load push-pull dedicated hydraulic system, it is characterised in that: institute
It states solenoid directional control valve (5) and is set as two-bit triplet solenoid directional control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820782267.4U CN208471475U (en) | 2018-05-24 | 2018-05-24 | One kind can stay pallet load push-pull dedicated hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820782267.4U CN208471475U (en) | 2018-05-24 | 2018-05-24 | One kind can stay pallet load push-pull dedicated hydraulic system |
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| Publication Number | Publication Date |
|---|---|
| CN208471475U true CN208471475U (en) | 2019-02-05 |
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ID=65218819
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820782267.4U Active CN208471475U (en) | 2018-05-24 | 2018-05-24 | One kind can stay pallet load push-pull dedicated hydraulic system |
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| Country | Link |
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| CN (1) | CN208471475U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110145507A (en) * | 2019-05-20 | 2019-08-20 | 江苏柳工机械有限公司 | Auxiliary connection hydraulic system |
-
2018
- 2018-05-24 CN CN201820782267.4U patent/CN208471475U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110145507A (en) * | 2019-05-20 | 2019-08-20 | 江苏柳工机械有限公司 | Auxiliary connection hydraulic system |
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