CN203558738U - Get-off landing leg lock device for crane - Google Patents
Get-off landing leg lock device for crane Download PDFInfo
- Publication number
- CN203558738U CN203558738U CN201320617515.7U CN201320617515U CN203558738U CN 203558738 U CN203558738 U CN 203558738U CN 201320617515 U CN201320617515 U CN 201320617515U CN 203558738 U CN203558738 U CN 203558738U
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- getting
- valve
- crane
- controller
- electrically connected
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Abstract
The utility model provides a get-off landing leg lock device for a crane. The get-off landing leg lock device for the crane comprises a controller, a get-on and get-off switch board, a pilot enabling switch and a get-off operating valve, wherein the get-on and get-off switch board is electrically connected with the signal input end of the controller; the pilot enabling switch is electrically connected with the signal input end of the controller; the get-off operating valve is electrically connected with the signal output end of the controller. The get-off landing leg lock device has the beneficial effects that whether the get-off operating valve is locked or not is automatically judged in the working process of the crane, an accident caused by a misoperation on a get-off switch in the operation of the crane is prevented, and the safety of staff and equipment is ensured.
Description
Technical field
The utility model belongs to engineering mechanical device field, especially relates to a kind of crane descending supporting leg locking device.
Background technology
Car hosit must launch the supporting leg of getting off when hoisting operation operating mode, and the action of control landing leg stretching is its inner cross cylinder and Vertical Cylinders.When hoisting crane during in lifting operating mode its supporting leg must carry out any action, cross cylinder and the Vertical Cylinders of controlling supporting leg all can not have expanding-contracting action, otherwise may cause that car load unstability causes overthrow accident.Whether the core component of the support operating device of getting off that in prior art, car hosit is used is the maneuvering valve of getting off, after complete machine work, no matter get on the bus and work, as long as handle the handle of getting off on maneuvering valve, support oil cylinder all can follow suit and move accordingly.If have personnel to remove to handle the maneuvering valve of getting off in hoisting crane hoisting operation engineering, just probably cause and car load unstability cause overthrow accident.There is poor stability, once the maneuvering valve maloperation meeting of getting off is caused to the technical matterss such as safety misadventure.
Summary of the invention
Problem to be solved in the utility model is to provide a kind of crane descending supporting leg locking device, and in the process of hoisting crane work, the whether locked descending valve of automatic decision, prevents the safety misadventure causing getting off faulty switching when crane job.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of crane descending supporting leg locking device, comprise controller, the change-over switch of getting on or off the bus, guide's enable switch and the maneuvering valve of getting off, the described change-over switch of getting on or off the bus is electrically connected with described controller signals input end, described guide's enable switch is electrically connected with controller signals input end, described in the maneuvering valve of getting off be electrically connected with controller signals mouth.
Further, described in the maneuvering valve of getting off comprise guide's electromagnetic cartridge valve, described guide's electromagnetic cartridge valve is electrically connected with described controller signals mouth.
Further, described guide's electromagnetic cartridge valve is two-position three-way electromagnetic inserted valve.
Advantage and the good effect that the utlity model has are: owing to adopting technique scheme, the whether locked descending valve of automatic decision in the process of hoisting crane work, prevent the safety misadventure causing getting off faulty switching when crane job, support personnel and device security.
Accompanying drawing explanation
Fig. 1 is connection diagram of the present utility model;
Fig. 2 is workflow diagram of the present utility model.
The specific embodiment
As shown in Figure 1, a kind of crane descending supporting leg of the utility model locking device, comprise controller, the change-over switch of getting on or off the bus, guide's enable switch and the maneuvering valve of getting off, the change-over switch of getting on or off the bus is electrically connected with controller signals input end, guide's enable switch is electrically connected with controller signals input end, and the maneuvering valve of getting off is electrically connected with controller signals mouth; The maneuvering valve of getting off comprises guide's electromagnetic cartridge valve, and guide's electromagnetic cartridge valve is electrically connected with controller signals mouth; Guide's electromagnetic cartridge valve is two-position three-way electromagnetic inserted valve.
According to the different choice of guide's electromagnetic cartridge valve working position, the method that provides two kinds of these crane descending supporting leg locking device controls of use to get off supporting leg:
Method one, as shown in Figure 2, when carrying out hoisting operation, hoisting crane need open guide's enable switch, controller detects when enable switch is opening and sends locked signal to the maneuvering valve of getting off, it is guide's electromagnetic cartridge valve dead electricity, now handle the joystick of maneuvering valve of getting off get off cross cylinder and the non-telescope action of Vertical Cylinders, the supporting leg of getting off is locked; When controller detects guide's enable switch in closed condition, controller can continue to detect gets on or off the bus change-over switch in for which working position, and this switch has two working positions: upper parking stall and parking space; When detecting it in upper parking stall, controller illustrates that now hoisting crane is in hoisting operation operating mode, controller sends locked signal, guide's electromagnetic cartridge valve of getting off on maneuvering valve obtains electric, the maneuvering valve of getting off is locked, now handles get off cross cylinder and Vertical Cylinders of the joystick of maneuvering valve of getting off and does not move; When controller detects that it is when getting off working position, car load is in the working condition of getting off, controller sends unlocking signal to the maneuvering valve of getting off, guide's electromagnetic cartridge valve dead electricity of getting off on maneuvering valve, the maneuvering valve release of getting off, the joystick of now handling the maneuvering valve of getting off can carry out normal horizontal support legs and vertical leg operation.
Method two, as shown in Figure 2, when carrying out hoisting operation, hoisting crane need open guide's enable switch, controller detects when enable switch is opening and sends locked signal to the maneuvering valve of getting off, it is electric to be that guide's electromagnetic cartridge valve obtains, now handle the joystick of maneuvering valve of getting off get off cross cylinder and the non-telescope action of Vertical Cylinders, the supporting leg of getting off is locked; When controller detects guide's enable switch in closed condition, controller can continue to detect gets on or off the bus change-over switch in for which working position, and this switch has two working positions: upper parking stall and parking space; When detecting it in upper parking stall, controller illustrates that now hoisting crane is in hoisting operation operating mode, controller sends locked signal, guide's electromagnetic cartridge valve dead electricity of getting off on maneuvering valve, the maneuvering valve of getting off is locked, now handles get off cross cylinder and Vertical Cylinders of the joystick of maneuvering valve of getting off and does not move; When controller detects that it is when getting off working position, car load is in the working condition of getting off, controller sends unlocking signal to the maneuvering valve of getting off, guide's electromagnetic cartridge valve dead electricity of getting off on maneuvering valve, the maneuvering valve release of getting off, the joystick of now handling the maneuvering valve of getting off can carry out normal horizontal support legs and vertical leg operation.
Above an embodiment of the present utility model is had been described in detail, but described content is only preferred embodiment of the present utility model, can not be considered to for limiting practical range of the present utility model.All equalization variations of doing according to the utility model application range and improvement etc., within all should still belonging to patent covering scope of the present utility model.
Claims (3)
1. a crane descending supporting leg locking device, it is characterized in that: comprise controller, the change-over switch of getting on or off the bus, guide's enable switch and the maneuvering valve of getting off, the described change-over switch of getting on or off the bus is electrically connected with described controller signals input end, described guide's enable switch is electrically connected with controller signals input end, described in the maneuvering valve of getting off be electrically connected with controller signals mouth.
2. the supporting leg locking device of getting off according to claim 1, is characterized in that: described in the maneuvering valve of getting off comprise guide's electromagnetic cartridge valve, described guide's electromagnetic cartridge valve is electrically connected with described controller signals mouth.
3. the supporting leg locking device of getting off according to claim 2, is characterized in that: described guide's electromagnetic cartridge valve is two-position three-way electromagnetic inserted valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320617515.7U CN203558738U (en) | 2013-09-29 | 2013-09-29 | Get-off landing leg lock device for crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320617515.7U CN203558738U (en) | 2013-09-29 | 2013-09-29 | Get-off landing leg lock device for crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203558738U true CN203558738U (en) | 2014-04-23 |
Family
ID=50508471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320617515.7U Expired - Lifetime CN203558738U (en) | 2013-09-29 | 2013-09-29 | Get-off landing leg lock device for crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203558738U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103523672A (en) * | 2013-09-29 | 2014-01-22 | 天津山河装备开发有限公司 | Crane lower-structure supporting leg lock device and method for controlling supporting legs by using the device |
-
2013
- 2013-09-29 CN CN201320617515.7U patent/CN203558738U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103523672A (en) * | 2013-09-29 | 2014-01-22 | 天津山河装备开发有限公司 | Crane lower-structure supporting leg lock device and method for controlling supporting legs by using the device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140423 |