CN208182506U - Crane telescopic control device - Google Patents
Crane telescopic control device Download PDFInfo
- Publication number
- CN208182506U CN208182506U CN201820471306.9U CN201820471306U CN208182506U CN 208182506 U CN208182506 U CN 208182506U CN 201820471306 U CN201820471306 U CN 201820471306U CN 208182506 U CN208182506 U CN 208182506U
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- CN
- China
- Prior art keywords
- hydraulic fluid
- fluid port
- control valve
- solenoid directional
- directional control
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- 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.)
- Expired - Fee Related
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Abstract
The utility model gives a kind of crane telescopic control device, including emergency flight control valve group, and emergency flight control valve group includes the first solenoid directional control valve and the second solenoid directional control valve；The hydraulic fluid port P1 of first solenoid directional control valve and the oil communication of telescopic oil cylinder, the hydraulic fluid port T1 of the first solenoid directional control valve pass through the oil communication of check valve and telescopic oil cylinder；The hydraulic fluid port A1 connection of the hydraulic fluid port P2 and the first solenoid directional control valve of second solenoid directional control valve, the hydraulic fluid port T2 of second solenoid valve is connected to the hydraulic fluid port B1 of the first solenoid directional control valve, the hydraulic fluid port A2 of second solenoid directional control valve is connected to the cylinder pin mechanism oil cylinder of crane, and the hydraulic fluid port B2 of the second solenoid directional control valve is connected to the arm pin mechanism oil cylinder of crane.When normal condition, the first solenoid directional control valve is responsible for the commutation of cylinder pin and arm pin as main control valve, once the first solenoid directional control valve clamping stagnation in the next function, is responsible for the commutation of cylinder pin and arm pin using the second solenoid directional control valve as aux. control valve.
Description
Technical field
The utility model relates to a kind of crane telescopic control devices.
Background technique
Modern multi-arm section crane mostly uses greatly single-cylinder bolt type telescopic mechanism, and wherein the component of most critical is that bolt-type is stretched
Contracting oil cylinder, the telescopic oil cylinder are disposed with cylinder pin and arm pin to realize the connection or disengagement between arm joint, using hydraulic control mode.
Due to the needs of control, while in order to reduce the hydra-electric route of pipe line connection outside lifting arm assembly, the control of cylinder pin and arm pin
Valve processed is usually designed to link into an integrated entity with telescopic oil cylinder.The control valve is merely responsible for cylinder pin and arm pin in conventional control units product
Commutation (because cylinder pin and arm pin have alternative), in order to increase contamination resistance, may also increase filter device.
As shown in Figure 1, the prior art is due to the scheme do not met an urgent need, once the solenoid valve of control valve 1a is due to pollutant
When the factors such as blocking or electric wiring are damaged, leak electricity, solenoid valve itself corrodes lead to the control valve loss of function, telescopic oil cylinder
The cylinder pin 3a and arm pin 2a of 4a will be unable to work normally, and crane arm just normally can not be stretched or be recycled, to seriously affect
The operation safety of crane.
Utility model content
The technical problem to be solved by the utility model is to provide it is a kind of it is structurally reasonable, without changing any hardwired
Heavy-duty machine telescopic control device.
In order to solve the above technical problems, the utility model provides a kind of crane telescopic control device, including emergency control
Valve group processed, emergency flight control valve group include the first solenoid directional control valve and the second solenoid directional control valve；
First solenoid directional control valve includes hydraulic fluid port P1, hydraulic fluid port T1, hydraulic fluid port A1 and hydraulic fluid port B1, the hydraulic fluid port P1 of the first solenoid directional control valve
With the oil communication of telescopic oil cylinder, the hydraulic fluid port T1 of the first solenoid directional control valve passes through the oil communication of check valve and telescopic oil cylinder, single
It is mobile from the hydraulic fluid port T1 of the first solenoid directional control valve to the oil circuit direction of telescopic oil cylinder that oil liquid is limited to valve；
When normal condition, the first solenoid directional control valve hydraulic fluid port P1 and hydraulic fluid port B1 conducting, hydraulic fluid port A1 and hydraulic fluid port T1 are connected, the first electricity
When magnetic reversal valve is powered, hydraulic fluid port P1 and hydraulic fluid port A1 conducting, hydraulic fluid port B1 and hydraulic fluid port T1 are connected；
Second solenoid directional control valve includes hydraulic fluid port P2, hydraulic fluid port T2, hydraulic fluid port A2 and hydraulic fluid port B2, the hydraulic fluid port P2 of second solenoid valve and
The hydraulic fluid port A1 of one solenoid directional control valve is connected to, and the hydraulic fluid port T2 of second solenoid valve is connected to the hydraulic fluid port B1 of the first solenoid directional control valve, and second
The hydraulic fluid port A2 of solenoid directional control valve is connected to the cylinder pin mechanism oil cylinder of crane, the hydraulic fluid port B2 of the second solenoid directional control valve and crane
The connection of arm pin mechanism oil cylinder；
When normal condition, the second solenoid directional control valve hydraulic fluid port A2 and hydraulic fluid port P2 conducting, the second solenoid directional control valve hydraulic fluid port T2 and oil
Mouth B2 conducting, when the second solenoid directional control valve is powered, the second solenoid directional control valve hydraulic fluid port B2 and hydraulic fluid port P2 conducting, the second solenoid directional control valve
Hydraulic fluid port T2 and hydraulic fluid port A2 conducting.
With such a structure, when normal condition, the first solenoid directional control valve is responsible for cylinder pin and arm as main control valve
The commutation of pin, once the first solenoid directional control valve clamping stagnation in the next function, using the second solenoid directional control valve as aux. control valve
It is responsible for the commutation of cylinder pin and arm pin.
This crane telescopic control device has the beneficial effect that 1, can be not necessarily to change, replace any Hydraulic Elements
In the case of can realize emergency operation by electrical soft change (change electrical control logic)；2, very little, Ke Yijie are changed
About a large amount of manpowers and input cost；3, implementation maintenance behavior can be recycled by making crane still, and maintenance process, which is exempted entering, to be stretched
Maintenance in arm, therefore keep maintenance personal safer.
Detailed description of the invention
Fig. 1 is the control device hydraulic schematic diagram of the prior art.
Fig. 2 is the hydraulic schematic diagram of this control device embodiment.
Fig. 3 is the hydraulic schematic diagram of this control device embodiment emergency flight control valve group.
Specific embodiment
As shown in Fig. 2 to 3
This control device includes emergency flight control valve group 1, and emergency flight control valve group 1 includes the first solenoid directional control valve 11 and the second electricity
Magnetic reversal valve 12.
First solenoid directional control valve 11 includes hydraulic fluid port P1, hydraulic fluid port T1, hydraulic fluid port A1 and hydraulic fluid port B1, the oil of the first solenoid directional control valve 11
The oil communication of mouth P1 and telescopic oil cylinder 4, the hydraulic fluid port T1 of the first solenoid directional control valve 11 pass through the oil of check valve 13 and telescopic oil cylinder 4
Road connection, it is mobile from the hydraulic fluid port T1 of the first solenoid directional control valve 11 to the oil circuit direction of telescopic oil cylinder 4 that check valve 13 limits oil liquid；
When normal condition, the first solenoid directional control valve 11 hydraulic fluid port P1 and hydraulic fluid port B1 conducting, hydraulic fluid port A1 and hydraulic fluid port T1 are connected, and first
When solenoid directional control valve 11 is powered, hydraulic fluid port P1 and hydraulic fluid port A1 conducting, hydraulic fluid port B1 and hydraulic fluid port T1 are connected；
Second solenoid directional control valve 12 include hydraulic fluid port P2, hydraulic fluid port T2, hydraulic fluid port A2 and hydraulic fluid port B2, the hydraulic fluid port P2 of second solenoid valve and
The hydraulic fluid port A1 of first solenoid directional control valve 11 is connected to, and the hydraulic fluid port B1 of the hydraulic fluid port T2 of second solenoid valve and the first solenoid directional control valve 11 connects
Logical, the hydraulic fluid port A2 of the second solenoid directional control valve 12 is connected to 3 oil cylinder of cylinder pin mechanism of crane, the hydraulic fluid port of the second solenoid directional control valve 12
B2 is connected to 2 oil cylinder of arm pin mechanism of crane；
When normal condition, the second solenoid directional control valve 12 hydraulic fluid port A2 and hydraulic fluid port P2 conducting, the second electromagnetism are changed and 12 hydraulic fluid port T2 of valve
It is connected to hydraulic fluid port B2, when the second solenoid directional control valve 12 is powered, the second solenoid directional control valve 12 hydraulic fluid port B2 and hydraulic fluid port P2 conducting, the second electricity
Magnetic reversal valve 12 hydraulic fluid port T2 and hydraulic fluid port A2 conducting.
Under this control device normal operating conditions, cylinder pin mechanism 3 is realized by normal use by the first solenoid directional control valve 11
Or the oil liquid of arm pin mechanism 2 controls, and does not enable under 12 normal condition of the second solenoid directional control valve, once 11 electricity of the first solenoid directional control valve
Magnet valve breaks down, then enables the second solenoid directional control valve 12 and the first solenoid directional control valve 11 is replaced to realize emergency operation.
Assuming that the first solenoid directional control valve 11 causes clamping stagnation in the next function due to clamping stagnation, corrosion, electric fault etc.,
Positive operation is implemented by the second solenoid directional control valve 12, i.e. the first solenoid directional control valve of energization logical AND original 11 is consistent；If the first electromagnetism
11 clamping stagnation of reversal valve then implements reverse operating, i.e. energization logical AND original first by the second solenoid directional control valve 12 in upper function
Solenoid directional control valve 11 is opposite.
Using this control device can without change, replace any Hydraulic Elements in the case where can be by electrical soft
To realize emergency operation, implementation maintenance behavior can be recycled by making crane still for change (change electrical control logic).
Above-described is only a kind of embodiment of the utility model, it is noted that for the ordinary skill of this field
For personnel, without departing from the principle of this utility model, several variations and modifications can also be made, these also should be regarded as
Belong to the protection scope of the utility model.
Claims (1)
1. a kind of crane telescopic control device, it is characterized in that: including emergency flight control valve group, emergency flight control valve group includes the first electricity
Magnetic reversal valve and the second solenoid directional control valve；
First solenoid directional control valve includes hydraulic fluid port P1, hydraulic fluid port T1, hydraulic fluid port A1 and hydraulic fluid port B1, the hydraulic fluid port P1 of the first solenoid directional control valve with stretch
The oil communication of contracting oil cylinder, the hydraulic fluid port T1 of the first solenoid directional control valve pass through the oil communication of check valve and telescopic oil cylinder, check valve
It is mobile from the hydraulic fluid port T1 of the first solenoid directional control valve to the oil circuit direction of telescopic oil cylinder to limit oil liquid；
When normal condition, the first solenoid directional control valve hydraulic fluid port P1 is connected with hydraulic fluid port B1, and hydraulic fluid port A1 is connected with hydraulic fluid port T1, and the first electromagnetism changes
When being powered to valve, hydraulic fluid port P1 is connected with hydraulic fluid port A1, and hydraulic fluid port B1 is connected with hydraulic fluid port T1；
Second solenoid directional control valve includes hydraulic fluid port P2, hydraulic fluid port T2, hydraulic fluid port A2 and hydraulic fluid port B2, the electricity of the hydraulic fluid port P2 of second solenoid valve and first
The hydraulic fluid port A1 of magnetic reversal valve is connected to, and the hydraulic fluid port T2 of second solenoid valve is connected to the hydraulic fluid port B1 of the first solenoid directional control valve, the second electromagnetism
The hydraulic fluid port A2 of reversal valve is connected to the cylinder pin mechanism oil cylinder of crane, the hydraulic fluid port B2 of the second solenoid directional control valve and the arm pin of crane
Organization cylinder connection；
When normal condition, the second solenoid directional control valve hydraulic fluid port A2 is connected with hydraulic fluid port P2, the second solenoid directional control valve hydraulic fluid port T2 and hydraulic fluid port B2
Conducting, when the second solenoid directional control valve is powered, the second solenoid directional control valve hydraulic fluid port B2 is connected with hydraulic fluid port P2, the second solenoid directional control valve hydraulic fluid port
T2 is connected with hydraulic fluid port A2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820471306.9U CN208182506U (en) | 2018-03-30 | 2018-03-30 | Crane telescopic control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820471306.9U CN208182506U (en) | 2018-03-30 | 2018-03-30 | Crane telescopic control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208182506U true CN208182506U (en) | 2018-12-04 |
Family
ID=64435674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820471306.9U Expired - Fee Related CN208182506U (en) | 2018-03-30 | 2018-03-30 | Crane telescopic control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208182506U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108313896A (en) * | 2018-03-30 | 2018-07-24 | 安徽柳工起重机有限公司 | Crane telescopic control device |
| CN110127524A (en) * | 2019-04-29 | 2019-08-16 | 江苏徐工工程机械研究院有限公司 | A kind of emergency flight control system and crane |
| CN111017750A (en) * | 2019-12-09 | 2020-04-17 | 三一汽车起重机械有限公司 | Single-cylinder bolt type suspension arm, suspension arm operation method and crane |
-
2018
- 2018-03-30 CN CN201820471306.9U patent/CN208182506U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108313896A (en) * | 2018-03-30 | 2018-07-24 | 安徽柳工起重机有限公司 | Crane telescopic control device |
| CN110127524A (en) * | 2019-04-29 | 2019-08-16 | 江苏徐工工程机械研究院有限公司 | A kind of emergency flight control system and crane |
| CN111017750A (en) * | 2019-12-09 | 2020-04-17 | 三一汽车起重机械有限公司 | Single-cylinder bolt type suspension arm, suspension arm operation method and crane |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181204 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |