CN2695426Y - Safety direction detecting device - Google Patents
Safety direction detecting device Download PDFInfo
- Publication number
- CN2695426Y CN2695426Y CN 200420026112 CN200420026112U CN2695426Y CN 2695426 Y CN2695426 Y CN 2695426Y CN 200420026112 CN200420026112 CN 200420026112 CN 200420026112 U CN200420026112 U CN 200420026112U CN 2695426 Y CN2695426 Y CN 2695426Y
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- China
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- switch
- detection bodies
- joystick
- detection
- safe direction
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- Expired - Lifetime
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Abstract
The utility model discloses a safe direction detecting device of an automobile crane operating system, which comprises a detecting body, a support frame and a proximity switch connected to a detecting circuit, wherein, the detecting body is connected with an operating lever, and the proximity switch is fixed at the upper part of the operating lever through the support frame. When the operating lever moves, the detecting body moves along with the operating lever. When the detecting body is positioned within the detecting range of the proximity switch, the proximity switch emits electrical signals, and a crane can only move towards a safe direction through the detecting circuit when the crane is overloaded. The utility model has the advantage of simple structure, can realize the detection of the safe direction of the operating system without largely altering the operating lever and a connecting lever, and is convenient to install on an automobile crane needing to additionally provided with the safe direction detecting device at later period.
Description
Technical field
The utility model relates to a kind of safe direction detection device of car hosit maneuvering system.
Background technology
According to national standard, the car hosit more than 16 tons need dispose the full automaticity limiter of moment, when overload crane, need stop the action of dangerous direction automatically, only can carry out secure side to operation.Automatically stop to finish, but the dangerous direction and the secure side of maneuvering system are distinguished by external device (ED) to need by limiter of moment output electric signal modulated pressure unloader valve.
So-called secure side is to being the direction of operating of instigating hoisting crane moment to reduce, and actions such as luffing, off the hook, arm retraction make progress as arm.Safe direction detection device in the past adopts the mechanical linkage form, and the action of all directions is converted to unidirectional motion by connecting rod mechanism, sends electric signal by travel switch again.The safe direction detection device complex structure of mechanical linkage formula is limited by the control cabin bottom space simultaneously, and design the time is not considered safe direction detection device and needed the car hosit that the later stage installs additional, implements quite difficulty.
Summary of the invention
The purpose of this utility model is that a kind of safe direction detection device will be provided, and this apparatus structure is simple, and is convenient to be installed in and needs on the car hosit that the later stage installs additional.
The purpose of this utility model be achieved in that this device comprise detection bodies, support and be connected in the testing circuit near switch, detection bodies links to each other with joystick, is fixed on the top of joystick by support near switch.
Detection bodies is screwed on joystick, unclamps screw and can freely adjust the position along joystick directions.Be fixed on the support near switch, can adjust the position up and down by self screw thread.Support has slotted hole, and convenient adjustment near the switch installation site guarantees the centering near switch and detection bodies line of centers.
Described joystick is four, is four near switch, and detection bodies is four; First detection bodies links to each other with first joystick, and second detection bodies links to each other with second joystick, and the 3rd detection bodies links to each other with the 3rd joystick, and the 4th detection bodies links to each other with the 4th joystick; First detection bodies is positioned at first left side near the switch line of centers, and second detection bodies is positioned at second left side near the switch line of centers, and the 3rd detection bodies is positioned at the 3rd right side near the switch line of centers, and the 4th detection bodies is positioned at the 4th right side near the switch line of centers.
Described testing circuit be first near switch, second near switch, the 3rd near switch, the 4th near after switch and the compulsory commutation switch in parallel, termination power positive pole on it, a unload end of load relay of lower end, unload the other end ground connection of load relay, one end of electromagnetic valve is by unloading the contact power connection positive pole of load relay, the other end ground connection of electromagnetic valve.
Fall according to the major and minor elevator of hoisting crane, the arm luffing that makes progress, arm bounce back these several secure side to the parallel motion direction of the caused different joysticks of action, determine that detection bodies is relatively near the installation site, the left and right sides of switch.As when handling the master winch whereabouts, joystick is moved right, therefore detection bodies is fixed near the switch leftward position.The whole relative position near switch and detection bodies of the step of going forward side by side, when making joystick be in meta, detection bodies just in time is near switch detection range edge, but does not send electric signal.Be in joystick meta and secure side to when operation, detection bodies all has and is near in the switch valid analysing range.So just can be with the luffing that makes progress, the used detection bodies of hoisting arm expansion is arranged near the switch right side, and the major-minor elevator used detection bodies that falls is arranged near switch left side.When handling different joysticks, just can detect different safe direction signals.
From the above, detection bodies of the present utility model links to each other with joystick, and when joystick moved, detection bodies moved thereupon.In the time of in detection bodies is near the switch detection range, send electric signal, make hoisting crane when overload takes place by testing circuit near switch, can only be to secure side to action.It is simple in structure, need not the joystick connecting rod is done bigger change, can realize the detection of operating system security direction, and is convenient to be installed on the car hosit that needs the later stage to install safe direction detection device additional.
Description of drawings
Fig. 1 is the constructional drawing of an embodiment of the present utility model.Fig. 2 is the upward view of Fig. 1.Fig. 3 is the testing circuit figure of Fig. 1.Among the figure 1. first near switch, 2. second near switch, 3. the 3rd near switch, 4. the 4th near switch, 5. the 3rd detection bodies, 6. the 4th detection bodies, 7. multiway valve, 8. first detection bodies, 9. second detection bodies, 10. first joystick, 11. second joysticks, 12. the 3rd joysticks, 13. the 4th joysticks, 14. supports, 15. compulsory commutation switches, 16. unload load relay, 17. electromagnetic valves.
The specific embodiment
In Fig. 1 and Fig. 2, joystick is four, is four near switch, and detection bodies is four.First joystick 10 is used to control secondary elevator, and second joystick 11 is used to control master winch, and the 3rd joystick 12 is used to control the flexible of arm, and the 4th joystick 13 is used to control the arm luffing.
First detection bodies 8 links to each other with first joystick 10, and second detection bodies 9 links to each other with second joystick 11, and the 3rd detection bodies 5 links to each other with the 3rd joystick 12, and the 4th detection bodies 6 links to each other with the 4th joystick 13.First near switch 1, second near switch 2, the 3rd near switch 3 and the 4th near switch 4 all by the corresponding respectively top that is fixed on first joystick 10, second joystick 11, the 3rd joystick 12 and the 4th joystick 13 of support 14.First detection bodies 8 is positioned at first left side near switch 1 line of centers, second detection bodies 9 is positioned at second left side near switch 2 line of centerss, the 3rd detection bodies 5 is positioned at the 3rd right side near switch 3 line of centerss, and the 4th detection bodies 6 is positioned at the 4th right side near switch 4 line of centerss.
In Fig. 3, testing circuit first near switch 1, second near switch 2, the 3rd near switch 3, the 4th near after switch 4 and 15 parallel connections of compulsory commutation switch, the unload upper end of load relay 16 of termination power positive pole on it, lower end, the lower end ground connection of unloading load relay 16.The upper end of electromagnetic valve 17 is by unloading the contact K1 power connection positive pole of load relay 16, the lower end ground connection of electromagnetic valve 17.
Limiter of moment LMI under normal circumstances exports the 24V electric signal, output 0V signal during overload, during overload arbitrary when detecting safety signal near switch, all can make and unload load relay 16 and contact K1 action, and control corresponding solenoid valve 17 is cut off hydraulic efficiency power unit, thereby with limiter of moment LMI overload off-load signal shielding, make hoisting crane only with to secure side to operation.
Claims (3)
1. safe direction detection device, this device comprise detection bodies, support and be connected in the testing circuit near switch, it is characterized in that detection bodies links to each other with joystick, be fixed on the top of joystick by support near switch.
2. safe direction detection device according to claim 1 is characterized in that joystick is four, is four near switch, and detection bodies is four; First detection bodies links to each other with first joystick, and second detection bodies links to each other with second joystick, and the 3rd detection bodies links to each other with the 3rd joystick, and the 4th detection bodies links to each other with the 4th joystick; First detection bodies is positioned at first left side near the switch line of centers, and second detection bodies is positioned at second left side near the switch line of centers, and the 3rd detection bodies is positioned at the 3rd right side near the switch line of centers, and the 4th detection bodies is positioned at the 4th right side near the switch line of centers.
3. safe direction detection device according to claim 1, it is characterized in that testing circuit be first near switch, second near switch, the 3rd near switch, the 4th near after switch and the compulsory commutation switch in parallel, termination power positive pole on it, a unload end of load relay of lower end, unload the other end ground connection of load relay, one end of electromagnetic valve is by unloading the contact power connection positive pole of load relay, the other end ground connection of electromagnetic valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420026112 CN2695426Y (en) | 2004-04-07 | 2004-04-07 | Safety direction detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420026112 CN2695426Y (en) | 2004-04-07 | 2004-04-07 | Safety direction detecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2695426Y true CN2695426Y (en) | 2005-04-27 |
Family
ID=34771135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420026112 Expired - Lifetime CN2695426Y (en) | 2004-04-07 | 2004-04-07 | Safety direction detecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2695426Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101336205B (en) * | 2006-01-26 | 2012-05-30 | 品驰布本泽尔有限责任公司 | Control and regulation device, conveyor device and crane unit |
| CN105253778A (en) * | 2015-10-31 | 2016-01-20 | 长治清华机械厂 | Moment limiter capable of automatically controlling overload warning to be relieved |
| CN109956402A (en) * | 2017-12-14 | 2019-07-02 | 河南森源重工有限公司 | A kind of crane truck restraint protection system and autocrane |
-
2004
- 2004-04-07 CN CN 200420026112 patent/CN2695426Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101336205B (en) * | 2006-01-26 | 2012-05-30 | 品驰布本泽尔有限责任公司 | Control and regulation device, conveyor device and crane unit |
| CN105253778A (en) * | 2015-10-31 | 2016-01-20 | 长治清华机械厂 | Moment limiter capable of automatically controlling overload warning to be relieved |
| CN109956402A (en) * | 2017-12-14 | 2019-07-02 | 河南森源重工有限公司 | A kind of crane truck restraint protection system and autocrane |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090227 Address after: No. 165 Copper Road, Jiangsu, Xuzhou Province, China: 221004 Patentee after: Xuzhou Heavy Machinery Co., Ltd. Address before: No. 165 Copper Road, Jiangsu, Xuzhou Province, China: 221004 Patentee before: Xuzhou Heavy Machinery Plant |
|
| ASS | Succession or assignment of patent right |
Owner name: XUZHOU HEACY MACHINE CO., LTD. Free format text: FORMER OWNER: XUZHOU HEACY MACHINERY PLANT Effective date: 20090227 |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140407 Granted publication date: 20050427 |