CN206232325U - A kind of Large Electric hydraulic grab hydraulic control system - Google Patents
A kind of Large Electric hydraulic grab hydraulic control system Download PDFInfo
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- CN206232325U CN206232325U CN201621143900.2U CN201621143900U CN206232325U CN 206232325 U CN206232325 U CN 206232325U CN 201621143900 U CN201621143900 U CN 201621143900U CN 206232325 U CN206232325 U CN 206232325U
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Abstract
The utility model discloses a kind of Large Electric hydraulic grab hydraulic control system, including grab bucket part and electro-hydraulic system, electro-hydraulic system includes oil cylinder, hydraulic pump and control valve block, hydraulic pump is provided with several, controlled respectively by some two-bit triplet reversal valves, control valve block includes 2/2-way inserting reversal valve, inserting overflow valve, shuttle valve, inserting check valve, inserting pilot operated directional control valve, inserting safety valve, oil return filter core.Large Electric hydraulic pressure grab used in water of the present utility model, the solenoid directional control valve of several two-bit triplets is set in hydraulic system, control LS mouthfuls of cut-in pressure of hydraulic pump, when selection and load port are connected, hydraulic pump enters working condition, and when selection and oil return opening are connected, hydraulic pump enters unloading condition, many pump sub-controls are realized, the large-flow hydraulic system demand of Large Electric hydraulic pressure grab used in water is met.
Description
Technical field
The utility model is related to a kind of plant equipment grabbed and unload goods, more particularly to a kind of Large Electric hydraulic pressure grab used in water
Hydraulic control system.
Background technology
Electric hydraulic bucket is a kind of grab bucket of self-powered device, is hung on crane, is used to capture loose unpacked material.
Current domestic existing electric hydraulic bucket, major part is the unlatching of grab bucket to be controlled by the mode of motor forward/backward rotation and is closed
Close, semi- or fully automated crane had been introduced in recent years, the place for capturing rubbish and other material charges, it is used
Be mostly solenoid valve control mode electric hydraulic bucket, the hydraulic grab of solenoid valve control, with control performance is good, motor
Overheat, mechanical non-damageable advantage are difficult, are currently gradually promoted.
Existing middle-size and small-size electric hydraulic bucket, hydraulic system only configures single pump, and Large Electric hydraulic pressure grab used in water, hydraulic pressure
Flow system flow is in more than 2000L/min, therefore existing middle-size and small-size hydraulic grab cannot meet big flow demand.
Utility model content
Regarding to the issue above, the utility model purpose is to provide a kind of Large Electric hydraulic grab hydraulic control system,
To solve problems of the prior art.
To achieve these goals, the technical solution of the utility model is as follows：
A kind of Large Electric hydraulic grab hydraulic control system, including grab bucket part and electro-hydraulic system, the electricity
Hydrodynamic pressure system includes oil cylinder, hydraulic pump and control valve block, and the hydraulic pump is provided with several, by some two-bit triplets of correspondence
Reversal valve is controlled respectively, the control valve block include 2/2-way inserting reversal valve, inserting overflow valve, shuttle valve, inserting check valve,
Inserting pilot operated directional control valve, inserting safety valve, oil return filter core；The oil inlet of the 2/2-way inserting reversal valve connects with hydraulic pump
Logical, the oil-out of 2/2-way inserting reversal valve inserts liquid with a check valve oil inlet, an inserting overflow valve oil inlet, one respectively
The control mouth connection of reversal valve is controlled, the oil-out of the check valve is respectively communicated with oil cylinder, the oiler of an inserting pilot operated directional control valve,
The oil-out connection oil return filter core of overflow valve is inserted, the oil-out connection oil return filter core of pilot operated directional control valve is inserted, shuttle valve enters oil
Mouth connection 2/2-way inserts the oil-out of reversal valve, LS mouthfuls of its oil-out connection hydraulic pump.
A kind of preferred scheme of the present utility model, the hydraulic pump is 4, accordingly by 4 two-bit triplet reversal valves point
Do not control.
Another preferred scheme of the present utility model, the grab bucket part includes upper shell, left and right bucket body, connecting rod, institute
State and connected by main pin between left and right bucket body and upper shell, the left and right two ends of horizontally disposed oil cylinder respectively with left and right bucket body
Upper end is connected by bearing pin, and hydraulic system drives cylinder piston rod to stretch, so as to control left and right bucket body closure and open.
Another preferred scheme of the present utility model, the piston rod and rod end hanger of the oil cylinder for stainless steel be made it is whole
Body forging, bar envelope is by the way of water proof ring, dust ring, bumper ring, sealing ring combination.
Another preferred scheme of the present utility model, upper shell center section cavity is all-sealed structure, upper shell
Top sets seal cover board, and sealing joint strip is set between seal cover board and upper shell；Hydraulic system removes oil cylinder and Additional connections
Outward, remaining is packaged in seal cavity.
Large Electric hydraulic grab hydraulic control system of the present utility model, sets several two in hydraulic system
The solenoid directional control valve of threeway, controls LS mouthfuls of cut-in pressure of hydraulic pump, and when selection and load port are connected, hydraulic pump enters work shape
When state, selection and oil return opening are connected, hydraulic pump enters unloading condition, realizes many pump sub-controls, meets the need of large-flow hydraulic system
Ask.
Brief description of the drawings
Fig. 1 is the utility model hydraulic control system configuration figure；
Fig. 2 is the utility model grab bucket schematic diagram；
Fig. 3 is the utility model grab bucket contour structures schematic diagram；
Specific embodiment
In order that technological means of the present utility model and implementation are apparent to, it is further with reference to specific embodiment
Illustrate the utility model.
Referring to Fig. 1, Fig. 2, Fig. 3, Large Electric hydraulic grab hydraulic control system of the present utility model, including grab bucket
Part and electro-hydraulic system, the electro-hydraulic system include oil cylinder 12, some hydraulic pumps 1 (being 4 in the present embodiment) and control
Valve block processed, the correspondence of some hydraulic pumps 1 is controlled respectively by several two-bit triplet reversal valves 2 (4 are corresponded in the present embodiment), and
The piston rod movement of oil cylinder 12 is connected, driven by the valve member being arranged in control valve block.
Control valve block includes that 2/2-way inserts reversal valve (3,4), inserting overflow valve (5,6), shuttle valve 7, inserting check valve
(8,9), inserting pilot operated directional control valve (10,11), inserting safety valve 13, oil return filter core 14；2/2-way inserting reversal valve (3,4)
Oil inlet is connected with hydraulic pump 1,2/2-way inserting reversal valve (3,4) oil-out respectively with a check valve oil inlet (8,
9), the control mouth connection of inserting overflow valve oil inlet (5,6), inserting pilot operated directional control valve (10,11), check valve (8,9)
Oil-out is respectively communicated with oil cylinder (12), the oiler of inserting pilot operated directional control valve (10,11), inserts the fuel-displaced of overflow valve (5,6)
Mouth connection oil return filter core 14, the oil-out connection oil return filter core 14 of inserting pilot operated directional control valve (10,11), the oiler of shuttle valve 7 connects
The oil-out of logical 2/2-way inserting reversal valve (3,4), LS mouthfuls of its oil-out connection hydraulic pump 1.
Control principle of the present utility model is：Four hydraulic pumps 1 are controlled by four reversal valves of two-bit triplet 2 respectively, are led to
When electric when four valve elements of two-bit triplet reversal valve 2 are located at left position, hydraulic pump 1 is in running order, four two-bit triplet commutations
When the valve element of valve 2 is located at right position, hydraulic pump 1 is in unloading condition, to ensure the steady rising of electrical system electric current and falling after rise, can pass through
Certain intervals (about 1-2 seconds) are kept between the startup of delayed relay four hydraulic pumps 1 of control and dwell time, in addition in hydraulic pressure
When system is in packing state, only maintain a hydraulic pump in running order.
When operation grab bucket closure, four magnet coils YV1, YV2, YV3, YV4 successively it is electric, four hydraulic pumps 1 are successively
Start, be in working condition, magnet coil YV5 obtains electric, 2/2-way inserts reversal valve 3 and worked in right position, logical valve conducting,
The hydraulic oil pumped out by hydraulic pump 1 enters the entrance of inserting check valve 8 and inserting overflow valve 5 through 2/2-way inserting reversal valve 3,
Grab bucket clossing pressure can be set up by adjusting inserting overflow valve 5, the inlet pressure of overflow valve 5 oil is inserted in addition through choke valve and shuttle valve
7 be conducted to hydraulic pump 1 LS mouthfuls；Enter the rodless cavity of oil cylinder 12 by the hydraulic oil for inserting check valve 8, promote piston rod to stretch
Go out, grab bucket closure, meanwhile, the pressure oil from the 2/2-way inserting outlet of reversal valve 3 is through guide's oil circuit to pilot operated directional control valve 11
Pilot port, the logical valve conducting of pilot operated directional control valve 11, the oil return from the rod chamber of oil cylinder 12 through pilot operated directional control valve 11, then through oil return
Filter core 14 returns to hydraulic oil container.
When operation grab bucket is opened, four magnet coils YV1, YV2, YV3, YV4 successively it is electric, four hydraulic pumps 1 are successively
Start, be in working condition, magnet coil YV6 obtains electric, 2/2-way inserts reversal valve 4 and worked in right position, logical valve conducting,
The hydraulic oil pumped out by hydraulic pump 1 enters the entrance of inserting check valve 9 and inserting overflow valve 6 through 2/2-way inserting reversal valve 4,
Grab bucket opening pressure can be set up by adjusting inserting overflow valve 6, the inlet pressure of overflow valve 6 oil is inserted in addition through choke valve and shuttle valve
7 be conducted to hydraulic pump 1 LS mouthfuls, when entering the rod chamber of oil cylinder 12 by the hydraulic oil for inserting check valve 9, piston rod is retracted,
Grab bucket is opened, meanwhile, the pressure oil of the outlet of reversal valve 4 is inserted through the guide of guide's oil circuit to pilot operated directional control valve 10 from 2/2-way
Mouthful, the conducting of the logical valve of pilot operated directional control valve 10, the oil return from the rodless cavity of oil cylinder 12 through pilot operated directional control valve 10, then through oil return filter core 14
Return to hydraulic oil container.
Inserting safety valve 13 is provided with control valve block, the oiler of safety valve 13 and entering for inserting overflow valve (5,6) is inserted
Hydraulic fluid port is connected, its oil-out connection hydraulic oil container, when system pressure exceedes the set pressure of inserting overflow valve (5,6), inserting
Safety valve 13 starts, off-load protection system safety.
Referring to Fig. 2,3, Large Electric hydraulic pressure grab used in water of the present utility model, its grab bucket component includes upper shell 20, a left side
Right bucket body 30, oil cylinder 12, connecting rod 40, seal cover board 50, are connected, level between left and right bucket body 30 and upper shell 20 by main pin
The left and right two ends of the oil cylinder 12 of arrangement are connected with the upper end of left and right bucket body 30 by oil cylinder bearing pin respectively, and hydraulic system drives oil cylinder
Piston rod stretches, so as to control left and right bucket body 30 to close and open.
The piston rod and rod end hanger of oil cylinder 12 be solid forging, material is stainless steel, modulated quenching, chromium plating processing and
Into；Bar envelope is by the way of water proof ring, dust ring, bumper ring, sealing ring combination, it is ensured that the anti-corrosion under water of oil cylinder 12.
The center section cavity of upper shell 20 of hydraulic grab is all-sealed structure, and top sets seal cover board 50, closure
Sealing joint strip is set between plate 50 and upper shell 20；In addition to oil cylinder 12 and Additional connections, remaining is packaged in close hydraulic system
In envelope cavity, it is to avoid hydraulic system and water directly contact.
The oil inlet and outlet of oil cylinder 12 is connected by sebific duct with the A/B hydraulic fluid ports positioned at seal cavity top.
Principal character of the present utility model, working method and advantage of the present utility model has been shown and described above.One's own profession
The technical staff of industry it should be appreciated that the utility model is not restricted to the described embodiments, described in above-described embodiment and specification
Simply principle of the present utility model, the utility model also has respectively on the premise of the utility model spirit and scope are not departed from
Changes and improvements are planted, these changes and improvements are both fallen within the range of claimed the utility model.
Claims (5)
1. a kind of Large Electric hydraulic grab hydraulic control system, including grab bucket part and electro-hydraulic system, its feature exist
In：The electro-hydraulic system includes oil cylinder (12), hydraulic pump (1) and control valve block, and the hydraulic pump (1) is provided with several,
Controlled respectively by some two-bit triplet reversal valves (2) of correspondence, the control valve block include 2/2-way insert reversal valve (3,4),
Inserting overflow valve (5,6), shuttle valve (7), inserting check valve (8,9), inserting pilot operated directional control valve (10,11), inserting safety valve (13),
Oil return filter core (14)；The oil inlet of 2/2-way inserting reversal valve (3,4) is connected with hydraulic pump (1), 2/2-way inserting
The oil-out of reversal valve (3,4) inserts liquid with a check valve (8,9) oil inlet, inserting overflow valve (5, a 6) oil inlet, one respectively
The control mouth connection of control reversal valve (10,11), the oil-out of the check valve (8,9) is respectively communicated with oil cylinder (12), an inserting liquid
The oiler of control reversal valve (10,11), the oil-out of inserting overflow valve (5,6) connects oil return filter core (14), inserts liquid controlled reversing
The oil-out of valve (10,11) connects oil return filter core (14), and the oiler connection 2/2-way of shuttle valve (7) inserts reversal valve (3,4)
Oil-out, its oil-out connection hydraulic pump LS mouthfuls of (1).
2. Large Electric hydraulic grab hydraulic control system according to claim 1, it is characterised in that：The hydraulic pump (1)
It is 4, is controlled respectively by 4 two-bit triplet reversal valves (2) accordingly.
3. Large Electric hydraulic grab hydraulic control system according to claim 1, it is characterised in that：The grab bucket part
Including upper shell (20), left and right bucket body (30), connecting rod (40), stub is passed through between the left and right bucket body (30) and upper shell (20)
Axle is connected, and the upper end of the left and right two ends of horizontally disposed oil cylinder (12) respectively with left and right bucket body (30) is connected by bearing pin, hydraulic pressure
System drive cylinder piston rod stretches, so as to control left and right bucket body (30) to close and open.
4. Large Electric hydraulic grab hydraulic control system according to claim 3, it is characterised in that：The oil cylinder (12)
The solid forging that piston rod and rod end hanger are made for stainless steel, bar envelope is using water proof ring, dust ring, bumper ring, sealing ring group
The mode of conjunction.
5. Large Electric hydraulic grab hydraulic control system according to claim 3, it is characterised in that：The upper shell (20)
Center section cavity is all-sealed structure, and upper shell (20) top sets seal cover board (50), seal cover board (50) and upper shell
(20) sealing joint strip is set between；In addition to oil cylinder and Additional connections, remaining is packaged in seal cavity hydraulic system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621143900.2U CN206232325U (en) | 2016-10-21 | 2016-10-21 | A kind of Large Electric hydraulic grab hydraulic control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621143900.2U CN206232325U (en) | 2016-10-21 | 2016-10-21 | A kind of Large Electric hydraulic grab hydraulic control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206232325U true CN206232325U (en) | 2017-06-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621143900.2U Active CN206232325U (en) | 2016-10-21 | 2016-10-21 | A kind of Large Electric hydraulic grab hydraulic control system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108680379A (en) * | 2018-08-02 | 2018-10-19 | 杭州瀚陆物探工程技术有限公司 | A kind of deep-sea Omni-mobile TV grab bucket |
| CN110027984A (en) * | 2019-03-29 | 2019-07-19 | 北京航天发射技术研究所 | A kind of high reliability and safety big load promote machine hydraulic system |
-
2016
- 2016-10-21 CN CN201621143900.2U patent/CN206232325U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108680379A (en) * | 2018-08-02 | 2018-10-19 | 杭州瀚陆物探工程技术有限公司 | A kind of deep-sea Omni-mobile TV grab bucket |
| CN108680379B (en) * | 2018-08-02 | 2021-09-14 | 杭州瀚陆海洋科技有限公司 | Deep sea omnidirectional mobile television grab bucket |
| CN110027984A (en) * | 2019-03-29 | 2019-07-19 | 北京航天发射技术研究所 | A kind of high reliability and safety big load promote machine hydraulic system |
| CN110027984B (en) * | 2019-03-29 | 2020-06-09 | 北京航天发射技术研究所 | Hydraulic system of large-load hoister |
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