CN207347019U - A kind of large-tonnage liquid level hydraulic crane is met an urgent need rotary control system - Google Patents
A kind of large-tonnage liquid level hydraulic crane is met an urgent need rotary control system Download PDFInfo
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- CN207347019U CN207347019U CN201721576347.6U CN201721576347U CN207347019U CN 207347019 U CN207347019 U CN 207347019U CN 201721576347 U CN201721576347 U CN 201721576347U CN 207347019 U CN207347019 U CN 207347019U
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Abstract
A kind of large-tonnage liquid level hydraulic crane is the utility model is related to meet an urgent need rotary control system, it includes rotary motor, main control valve, the one way pressure-reducing valve and one-way speed-regulating valve, the first shuttle valve and the second shuttle valve of realizing logic control of realization brake delay braking of control winch rotating on hydraulic wireline winch, and the A mouths of connection rotary motor, B mouthfuls of emergent revolution control loop；Emergent revolution control loop includes throttle valve and pilot operated directional control valve；The control mouth of pilot operated directional control valve connects the P1 mouths of the first check valve, the second check valve and the second shuttle valve；Wherein, the first check valve and the second check valve connect respectively rotary motor A mouths and B mouthfuls；The P1 mouths connection of second shuttle valve pumps manually.Through the above technical solutions, under emergency operation, as long as ongoing operation pumps manually, arm is pulled, by therewith the steadily rotation of safety security risk will not occur because of being emptied for loop wheel machine.
Description
Technical field
A kind of lifting appliance is the utility model is related to, meets an urgent need more particularly, to a kind of large-tonnage liquid level hydraulic crane and turns round control
System processed.
Background technology
Usually big hydraulic crane, because being let out in rotary motor itself and the leakage at the other positions of hydraulic system, Wu Fayong
Pump directly realizes emergent revolution instead of power pump station manually, and certainly, in the market also has the client directly single electronic with one
Power pump station realizes emergent revolution, and such cost is big, and aboard ship needs under power-off condition with the stand-by power supply on ship, generally
It is that will not be used to common loop wheel machine, but can be with lifesaving appliance in the case of permission；Traditional control mode, such as the institute of attached drawing 2
Show, it is necessary to manpower opens manual shutoff ball valve 6, and system can not active repairing, easily cause pipe during emergent revolution
Road is emptied, once pipeline is emptied, in the case where hull waves, the speed of rotary motor may be out of control, and there are security risk.
The content of the invention
The utility model main purpose is to provide a kind of large-tonnage liquid level hydraulic crane and meets an urgent need rotary control system, it is not easy
There is pipeline to be emptied, improve the security of equipment.
The above-mentioned technical problem of the utility model is mainly what is be addressed by following technical proposals：A kind of large-tonnage liquid
Position hydraulic crane is met an urgent need rotary control system, it includes rotary motor on hydraulic wireline winch, the main control of control winch rotating
Valve, the one way pressure-reducing valve for realizing brake delay braking and one-way speed-regulating valve, the first shuttle valve and the second shuttle valve of realizing logic control,
And A mouths, B mouthfuls of the emergent revolution control loop of connection rotary motor；Emergent revolution control loop includes throttle valve and hydraulic control
Reversal valve；The control mouth of pilot operated directional control valve connects the P1 mouths of the first check valve, the second check valve and the second shuttle valve；
Wherein, the first check valve and the second check valve connect respectively rotary motor A mouths and B mouthfuls；The P1 mouths of second shuttle valve
Connection pumps manually.
Through the above technical solutions, under emergency operation, as long as ongoing operation pumps manually, its pressure is first used for rotary motor
A mouthfuls and B mouthfuls of repairings, after the completion of repairing, manual pump pressure pipeline sets up pressure, which will divide two-way again, opens stop all the way
Car, opens pilot operated directional control valve all the way, makes to form interior circulation by throttle valve between A mouthfuls and B mouthfuls of rotary motor, as long as in this way, drawing
By therewith the steadily rotation of safety security risk will not occur because of being emptied for dynamic arm, loop wheel machine.
Brief description of the drawings
Attached drawing 1 is a kind of hydraulic control system schematic diagram of the utility model.
Attached drawing 2 is a kind of hydraulic control system schematic diagram of the prior art.
Wherein：1st, main control valve；21st, the first shuttle valve；22nd, the second shuttle valve；3rd, balanced valve；4th, buffer overflow valve；5th, throttle
Valve；6th, manual shutoff ball valve；71st, pilot operated directional control valve；72nd, the first check valve；73rd, the second check valve；8th, one way pressure-reducing valve；9th, it is single
To speed governing valve；10th, rotary motor.
Embodiment
Below with reference to the embodiments and with reference to the accompanying drawing the technical solutions of the present invention will be further described.
Embodiment：A kind of large-tonnage liquid level hydraulic crane of the utility model is met an urgent need rotary control system, as shown in Figure 1,
It includes rotary motor 10 on hydraulic wireline winch, the main control valve 1 for controlling winch rotating, realizes the unidirectional of brake delay braking
Pressure reducing valve 8 and one-way speed-regulating valve 9, the first shuttle valve 21 for realizing logic control and the second shuttle valve 22, two balanced valves 3, buffering overflow
Valve 4, and the A mouths of connection rotary motor 10, B mouthfuls of emergent revolution control loop.Wherein：
Main control valve 1, two actuator ports respectively the A mouths with rotary motor 10, B mouthfuls connect.
Two balanced valves 3, be separately positioned on main control valve 1 with rotary motor 10 two are connected on oil duct, to realize that dynamic is flat
Steady and combination water brake plays braking action.
Buffer overflow valve 4, for slowing down impact when loop wheel machine stops suddenly.
Emergent revolution control loop includes the throttle valve 5 and pilot operated directional control valve 71 of limitation arm rotational speed；Liquid controlled reversing
The control mouth of valve 71 connects the P1 mouths of the first check valve 72, the second check valve 73 and the second shuttle valve 22；Wherein, the first check valve 72
Connected respectively with the second check valve 73 rotary motor 10 A mouths and B mouthfuls；The P1 mouths of second shuttle valve 22 set quick coupling, with even
The dynamic pump of catcher；The A mouths connection one way pressure-reducing valve 8 of second shuttle valve 22, one way pressure-reducing valve 8 connect one-way speed-regulating valve 9, one-way speed-regulating valve 9
Connect rotary motor 10.
The utility model is two check valves (i.e. the first check valve 72 and the second check valves on the basis of Traditional control
73) it is used for A mouthfuls and B mouthfuls of rotary motor, is used for pumping manually to A mouthfuls and B mouthfuls repairings of rotary motor, throttle valve 5 is emergent revolution
When speed limit and make loop wheel machine smooth rotation, mainly play safety effect；Increase pilot operated directional control valve 71 at the same time, if desired for emergent revolution, then
Manual pump can be directly operated, meanwhile, loop wheel machine arm head is pulled, realizes emergent revolution.
Traditional control mode, it is necessary to manpower opens manual shutoff ball valve 6, and system can not active repairing, revolution of meeting an urgent need
During easily cause pipeline and be emptied, once pipeline is emptied, in the case where hull waves, the speed of rotary motor can
Can be out of control, there are security risk.
The control mode of the utility model, under emergency operation, connects pump manually and ongoing operation pumps manually, its pressure
First it is used for A mouthfuls of rotary motor and B mouthfuls of repairings, after the completion of repairing, manual pump pressure pipeline can just set up pressure, which will
Divide two-way again, open brake all the way, open pilot operated directional control valve 71 all the way, make to pass through throttle grverning between A mouthfuls and B mouthfuls of rotary motor
Throttle valve 5 form interior circulation；As long as in this way, pull arm, loop wheel machine, will not be because of being emptied by the rotation of safety therewith steady
And security risk occurs.
Specific embodiment described herein is only the spirit explanation for example to the utility model.This practicality
New person of ordinary skill in the field can do various modifications or additions or province to described specific embodiment
Substitute slightly or in a similar way, but spirit without departing from the utility model or surmount the appended claims
Defined scope.
Claims (3)
- Rotary motor (10) in rotary control system, including hydraulic wireline winch, control 1. a kind of large-tonnage liquid level hydraulic crane is met an urgent need The main control valve (1) of winch rotating processed, the one way pressure-reducing valve (8) for realizing brake delay braking and one-way speed-regulating valve (9), realization The first shuttle valve (21) of logic control and the second shuttle valve (22), and the A mouths of connection rotary motor (10), B mouthfuls of emergent revolution Control loop；It is characterized in that：Emergent revolution control loop includes throttle valve (5) and pilot operated directional control valve (71)；Pilot operated directional control valve (71) control mouth connects the P1 mouths of the first check valve (72), the second check valve (73) and the second shuttle valve (22)；Wherein, the first check valve (72) and the second check valve (73) connect respectively rotary motor (10) A mouths and B mouthfuls；Second shuttle The P1 mouths connection of valve (22) pumps manually.
- The rotary control system 2. a kind of large-tonnage liquid level hydraulic crane according to claim 1 is met an urgent need, it is characterised in that：Also Including two balanced valves (3), be separately positioned on main control valve (1) with rotary motor (10) two is connected on oil duct.
- The rotary control system 3. a kind of large-tonnage liquid level hydraulic crane according to claim 1 or 2 is met an urgent need, its feature exist In：Further include the buffer overflow valve (4) for slowing down impact when loop wheel machine stops suddenly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721576347.6U CN207347019U (en) | 2017-11-22 | 2017-11-22 | A kind of large-tonnage liquid level hydraulic crane is met an urgent need rotary control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721576347.6U CN207347019U (en) | 2017-11-22 | 2017-11-22 | A kind of large-tonnage liquid level hydraulic crane is met an urgent need rotary control system |
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| Publication Number | Publication Date |
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| CN207347019U true CN207347019U (en) | 2018-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721576347.6U Active CN207347019U (en) | 2017-11-22 | 2017-11-22 | A kind of large-tonnage liquid level hydraulic crane is met an urgent need rotary control system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109231051A (en) * | 2018-09-29 | 2019-01-18 | 武汉船用机械有限责任公司 | Winch shear is self-locking and remote emergency hydraulic system and its operating method for an a kind of high position |
| CN111039183A (en) * | 2019-12-27 | 2020-04-21 | 三一汽车起重机械有限公司 | Hydraulic power emergency system and crane |
-
2017
- 2017-11-22 CN CN201721576347.6U patent/CN207347019U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109231051A (en) * | 2018-09-29 | 2019-01-18 | 武汉船用机械有限责任公司 | Winch shear is self-locking and remote emergency hydraulic system and its operating method for an a kind of high position |
| CN109231051B (en) * | 2018-09-29 | 2020-06-05 | 武汉船用机械有限责任公司 | Safety self-locking and remote emergency hydraulic system for high-position winch and operation method of safety self-locking and remote emergency hydraulic system |
| CN111039183A (en) * | 2019-12-27 | 2020-04-21 | 三一汽车起重机械有限公司 | Hydraulic power emergency system and crane |
| CN111039183B (en) * | 2019-12-27 | 2022-02-11 | 三一汽车起重机械有限公司 | Hydraulic power emergency system and crane |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | "change of name, title or address" | ||
| CP03 | "change of name, title or address" |
Address after: No.1, building 2, No.168, Chunxiao Yonghe Road, Beilun District, Ningbo City, Zhejiang Province Patentee after: Ningbo Kairong new energy Co., Ltd Address before: 315800 No. 1, No. 168, Yonghe Road, Chunxiao, Beilun District, Ningbo, Zhejiang, 1 Patentee before: NINGBO KAIRONG SHIP MACHINERY Co.,Ltd. |