CN203461747U - Winch hydraulic system capable of resisting starting instant impact - Google Patents
Winch hydraulic system capable of resisting starting instant impact Download PDFInfo
- Publication number
- CN203461747U CN203461747U CN201320467078.5U CN201320467078U CN203461747U CN 203461747 U CN203461747 U CN 203461747U CN 201320467078 U CN201320467078 U CN 201320467078U CN 203461747 U CN203461747 U CN 203461747U
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- hydraulic system
- throttle valve
- way throttle
- winch hydraulic
- drg
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Abstract
The utility model relates to the field of crane hoisting mechanisms, in particular to a winch hydraulic system capable of resisting a starting instant impact. The winch hydraulic system comprises a brake, a motor and a balance valve. The winch hydraulic system is characterized in that a control oil line between the brake and the balance valve is in series connection with a one-way throttle valve, a port A of the one-way throttle valve is positioned on one side of the brake, and a port P of the one-way throttle valve is positioned on one side of the balance valve. The diameter of a throttle valve in the one-way throttle valve is set to be 0.8-2.0mm. Compared with the prior art, the winch hydraulic system has the advantages that the one-way throttle valve is added on the control oil line of the brake, so that flow on the control oil line and the volume of an oil cylinder of the brake are in a proportional relation, the problem of the instant impact of a hoisting mechanism during starting is solved, and the winch hydraulic system is simple, practical, low in cost and high in reliability.
Description
Technical field
The utility model relates to crane hoisting mechanism field, relates in particular to a kind of hoisting hydraulic system of anti-startup moment impact.
Background technology
Crane hoisting mechanism all adopts hydraulic efficiency pressure system to drive at present, see Fig. 1, its structure is mainly comprised of drg (1), motor (2) and balance cock (5), but this system weight hoist and fall all can produce impact phenomenon in a flash, although prior art can solve problems, but complex structure is with high costs, reliability is also not satisfactory.
Summary of the invention
The purpose of this utility model is to provide a kind of hoisting hydraulic system of anti-startup moment impact, improves drg oil circuit control, solves lifting mechanism in the moment impact problem starting, and this scheme is simple, with low cost, reliability is high.
For achieving the above object, the utility model adopts following technical scheme to realize:
A kind of hoisting hydraulic system of anti-startup moment impact, comprise drg, motor and balance cock, on the oil circuit control between drg and balance cock, be serially connected with one-way throttle valve, the A mouth of one-way throttle valve is in drg one side, and the P mouth of one-way throttle valve is in balance cock one side.
In described one-way throttle valve, the diameter of flow regulating valve is set as 0.8～2.0mm.
Compared with prior art, the beneficial effects of the utility model are: on the oil circuit control of drg, increased one-way throttle valve, make flow on this oil circuit control and the proportional relation of oil cylinder volume size of drg, thereby solved lifting mechanism in the moment impact problem starting, and this scheme is simple, with low cost, reliability is high.
Accompanying drawing explanation
Fig. 1 is hoisting hydraulic system structural representation in prior art;
Fig. 2 is the utility model example structure schematic diagram.
In figure: 1-drg 2-motor 3-flow regulating valve 4-one-way throttle valve 5-balance cock
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment one step of the present utility model is illustrated:
See Fig. 2, it is the hoisting hydraulic system example structure schematic diagram of a kind of anti-startup moment impact of the utility model, comprise drg 1, motor 2 and balance cock 5, on the oil circuit control between drg 1 and balance cock 5, be serially connected with one-way throttle valve 4, the A mouth of one-way throttle valve 4 is in drg 1 one sides, and the P mouth of one-way throttle valve 4 is in balance cock 5 one sides.
V1 is the return opening that lifting mechanism rises and falls, and V2 is the oil inlet that lifting mechanism rises and falls, and L is the drain tap of motor 2.When V1 oil-feed, elevator falls, winding lifting during V2 oil-feed.When V2 oil-feed, shuttle valve comparison through balance cock 5 the insides, part fluid enters drg 1 by flow regulating valve 3, under flow regulating valve effect, drg 1 is slowly opened, and in the meantime, motor 2 lifting side have been set up back pressure, when drg 1 is opened completely, motor does not just have and impacts whereabouts phenomenon like this.And after motor 2 stops operating, when V1, V2 stop control lever, the fluid in drg 1 flows back to fuel tank through the check valve in one-way throttle valve 4, guarantee that drg 1 closes rapidly, reliably.In like manner, when the oil-feed of V1 mouth, principle is the same.
So the effect of one-way throttle valve 4 is exactly to make drg 1 change up and close slowly, plays and prevent from starting the effect of impacting.And this is simple and reliable for structure, with low cost.Here the proportional relation of oil cylinder volume size of the diameter of flow regulating valve 3 and drg 1, at drg 1 oil cylinder volume, fixedly in the situation that, the diameter of flow regulating valve 3 is less, opens that effect is more obvious slowly, but diameter is too little, can affect operability.So being set between 0.8～2.0mm, the diameter of flow regulating valve 3 is advisable.
Claims (2)
1. the hoisting hydraulic system of an anti-startup moment impact, comprise drg, motor and balance cock, it is characterized in that, on the oil circuit control between drg and balance cock, be serially connected with one-way throttle valve, the A mouth of one-way throttle valve is in drg one side, and the P mouth of one-way throttle valve is in balance cock one side.
2. the hoisting hydraulic system of a kind of anti-startup moment impact according to claim 1, is characterized in that, in described one-way throttle valve, the diameter of flow regulating valve is set as 0.8～2.0mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320467078.5U CN203461747U (en) | 2013-08-01 | 2013-08-01 | Winch hydraulic system capable of resisting starting instant impact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320467078.5U CN203461747U (en) | 2013-08-01 | 2013-08-01 | Winch hydraulic system capable of resisting starting instant impact |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203461747U true CN203461747U (en) | 2014-03-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320467078.5U Expired - Lifetime CN203461747U (en) | 2013-08-01 | 2013-08-01 | Winch hydraulic system capable of resisting starting instant impact |
Country Status (1)
| Country | Link |
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| CN (1) | CN203461747U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104192749A (en) * | 2014-07-29 | 2014-12-10 | 徐州五洋科技股份有限公司 | Mining explosion-proof type hydraulic winch hydraulic system |
| CN115180547A (en) * | 2022-06-08 | 2022-10-14 | 武汉船用机械有限责任公司 | Hydraulic control system for winch |
-
2013
- 2013-08-01 CN CN201320467078.5U patent/CN203461747U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104192749A (en) * | 2014-07-29 | 2014-12-10 | 徐州五洋科技股份有限公司 | Mining explosion-proof type hydraulic winch hydraulic system |
| CN115180547A (en) * | 2022-06-08 | 2022-10-14 | 武汉船用机械有限责任公司 | Hydraulic control system for winch |
| CN115180547B (en) * | 2022-06-08 | 2024-03-22 | 武汉船用机械有限责任公司 | Hydraulic control system for winch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140305 |
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| CX01 | Expiry of patent term |