CN205204655U - Torque limiter that overload warning automatic control relieved - Google Patents
Torque limiter that overload warning automatic control relieved Download PDFInfo
- Publication number
- CN205204655U CN205204655U CN201520853666.1U CN201520853666U CN205204655U CN 205204655 U CN205204655 U CN 205204655U CN 201520853666 U CN201520853666 U CN 201520853666U CN 205204655 U CN205204655 U CN 205204655U
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- China
- Prior art keywords
- moment
- main control
- control system
- hydraulic directional
- control valve
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- Withdrawn - After Issue
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Abstract
The utility model relates to a torque limiter that overload warning automatic control relieved, including hydraulic directional control valve, guide bar, position sensor, position baffle, main control system, hydraulic directional control valve links to each other with hoisting equipment, controls hoisting equipment's action direction, position baffle installation on safety operating handle, can along with safe operating handle along the guide bar motion, position sensor installs in position baffle top, and position sensor's signal output part links to each other with the main control system for the position of monitoring location baffle and to control host sends triggering signal, overload alarm signal is relieved according to the triggering signal that position sensor sent to the main control system. The utility model discloses automatic deactivation of an alarm's function had both been played, hoisting equipment's safety can be effectively protected again, but wide application in engineering hoisting equipment field.
Description
Technical field
The utility model relates to field of engineering technology, is specifically related to the limiter of moment that a kind of overload warning controls to remove automatically.
Background technology
Hoisting crane plays very important effect in engineering construction and accident rescue, when using hoisting crane to carry out hoisting operation, need often to change operating mode according to field condition and carry out hoisting operation, hang as changed and carry angle etc., and the work luffing lifted by crane under different operating mode and maximum load rating are different, therefore a set of safety device is needed to carry out comprehensive monitoring judgement to above parameter, real-time display hoisting crane normally works, fully loaded, overload, luffing surpasses the upper limit, luffing surpasses the mode of operations such as lower limit, and carry out corresponding warning, prompting, control, to ensure crane safety work.For this reason, hoisting crane is all furnished with limiter of moment as safety guard, according to the mode of operation of hoisting crane reality, according to specific load curve, automatically moment restriction is carried out to hoisting crane, prevent the dangerous play of hoisting crane.Therefore, limiter of moment product is the requisite safety guard of one on lifting equipment.
Existing limiter of moment is all with overload warning fender guard; when there is overload warning in weight-lifting equipment; need operating personal M/C; remove overload warning; thus realize trouble free service; but M/C deposits multiple possibility, as there is operating personal work mistake, weight-lifting equipment is easily caused to continue to the motion of dangerous direction and occur safety misadventure.In view of the important safety effect of limiter of moment, research and develop a kind of can overload warning automatically control remove limiter of moment just seem extremely important.
Utility model content
In the utility model prior art, limiter of moment needs the shortcoming manually removing overload warning, overcomes the deficiency that prior art exists, and provides the limiter of moment that a kind of overload warning controls to remove automatically.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of overload warning controls the limiter of moment removed automatically, comprises hydraulic directional control valve, pilot bar, position transduser, position baffle plate, main control system; Described hydraulic directional control valve is connected with weight-lifting equipment, controls the direction of action of weight-lifting equipment; Described position baffle plate is arranged on safe operation handle, can move along described pilot bar with described safe operation handle, described safe operation handle is that described hydraulic directional control valve controls corresponding hydraulic directional control valve operating handle when weight-lifting equipment reduces direction motion to moment, and described operating handle moves to respective direction along with described hydraulic directional control valve; Described position transduser is arranged on above the baffle plate of described position, and the signal output part of described position transduser is connected with described main control system, for monitoring the position of described position baffle plate and sending energizing signal to described main control system; When being in overload condition when weight-lifting equipment and running to the direction that moment reduces, the energizing signal that described main control system sends according to described position transduser removes overload warning signal.
The limiter of moment that described overload warning controls to remove automatically also comprises electric liquid protective valve, and described electric liquid protective valve is arranged on described hydraulic directional control valve, and described electric liquid protective valve is used for forbidding that when weight-lifting equipment overloads described hydraulic directional control valve runs.
When described main control system exports overload warning signal, described electric liquid protective valve starts; When described main control system removes overload warning signal, the start and stop of described electric liquid protective valve.
The limiter of moment that described overload warning controls to remove automatically also comprises springing, and the movable end of described springing is connected with described position baffle plate, resets for making described position baffle plate.
The utility model adopts mechanical mechanism to realize mechanism kinematic and condition monitoring in conjunction with electrical sensor mode and controls, compared with prior art, both served the function automatically terminating warning, again the available protecting safety of weight-lifting equipment.
Accompanying drawing explanation
Fig. 1 is the mechanical construction drawing that the utility model overload warning controls the limiter of moment removed automatically;
Fig. 2 is the circuit connection diagram that the utility model overload warning controls the limiter of moment removed automatically.
Detailed description of the invention
In order to make goal of the invention of the present utility model, technical scheme and advantage are clearly understood, once by reference to the accompanying drawings and embodiment the utility model is described in further detail.
With reference to shown in Fig. 1-2, a kind of overload warning controls the limiter of moment removed automatically, comprise hydraulic directional control valve 1, electricity liquid protective valve 2, main control system 3, position baffle plate 4, position transduser 5, pilot bar 6, wherein, hydraulic directional control valve 1 can control weight-lifting equipment and reduce or the motion of moment increase both direction to moment; As shown in Figure 1, position baffle plate 4 is arranged on and controls weight-lifting equipment safe operation handle 7 one end to the hydraulic directional control valve 1 of the direction motion that moment reduces, when controlled weight-lifting equipment action is to the secure side of moment reduction to motion, safe operation handle 7 can move to corresponding direction, and drives position baffle plate 4 to move along pilot bar 6; Position transduser 5 is arranged on above position baffle plate 4 by base plate 51, and the signal output part of position transduser 5 is connected with main control system 3 by data transmission port 9, sends signal for the position according to position baffle plate 4 to main control system 3; As shown in Figure 2, electric liquid protective valve 2 is arranged on hydraulic directional control valve 1, and its signal input part is connected with main control system 3 by data transmission port 9, for receiving the overload warning signal that main control system 3 sends, and forbids that hydraulic directional control valve 1 runs.
In addition, the limiter of moment that overload warning of the present utility model controls to remove automatically also comprises spring 8, as shown in Figure 1, spring 8 is fixed on the base plate 51 of position transduser 5, and its movable end is connected with position baffle plate 4, when position baffle plate 4 moves along pilot bar 6, can make spring 8 that deformation occurs, after the motion of weight-lifting equipment terminates, safe operation handle 7 resets, position baffle plate 4, under the shape inotropic action of spring 8, moves to reset along pilot bar 6.Spring 8 wherein also can be replaced by other springings.
Weight-lifting equipment sense of motion realizes by controlling corresponding hydraulic directional control valve.When hydraulic directional control valve 1 works, corresponding operating handle can move to certain direction.When the weight-lifting equipment action that hydraulic directional control valve 1 controls is to the secure side of moment reduction to motion, drive position baffle plate 4 moves along pilot bar 6 by safe operation handle 7, position baffle plate 4 triggers the position transduser 5 being arranged on correspondence position, position transduser 5 is triggered, and sends energizing signal to limiter of moment main control system 3; Limiter of moment main control system 3 will be made state in real time according to weight-lifting equipment work and process signal: if weight-lifting equipment does not overload, limiter of moment main control system 3 will not do any process; If there is overload in weight-lifting equipment, main control system 3 will send overload warning signal, electricity liquid protective valve 9 starts, hydraulic directional control valve 1 is in and forbids running state, when the energizing signal that position transduser 5 is beamed back being detected, limiter of moment main control system 3 will automatically terminate warning restraint, the start and stop of electric liquid protective valve 9, hydraulic directional control valve 1 recovers the motion control to weight-lifting equipment, and the direction making weight-lifting equipment can continue to reduce to moment is run; In addition; if there is overload in weight-lifting equipment; and hydraulic directional control valve 1 controls weight-lifting equipment when running to the dangerous direction that moment increases; can not trigger position sensor 5, therefore warning restraint state can not be removed, because electric liquid protective valve 9 still starts; weight-lifting equipment can not move with control action; therefore, this device had both served the function automatically terminating warning, again the available protecting safety of weight-lifting equipment.
Overload warning of the present utility model controls the limiter of moment removed automatically, mechanical mechanism is adopted to realize mechanism kinematic and condition monitoring control in conjunction with electrical sensor mode, when there is overload warning in weight-lifting equipment, can automatic monitoring braking do, when weight-lifting equipment is to secure side to motion, can automatically interrupt alarm control loop, when weight-lifting equipment is to dangerous direction motion, limiter of moment will maintain alarm control state, make weight-lifting equipment akinesia, guarantee that equipment is under overload warning state, can only to secure side to motion, avoid operating personal due to misoperation, equipment is caused to continue the safety misadventure of moving to dangerous direction.
By reference to the accompanying drawings embodiment of the present utility model is explained in detail above, but the utility model is not limited to above-described embodiment, in the ken that those of ordinary skill in the art possess, various change can also be made under the prerequisite not departing from the utility model aim.
Claims (4)
1. overload warning controls a limiter of moment for releasing automatically, it is characterized in that, comprises hydraulic directional control valve, pilot bar, position transduser, position baffle plate, main control system;
Described hydraulic directional control valve is connected with weight-lifting equipment, controls the direction of action of weight-lifting equipment;
Described position baffle plate is arranged on safe operation handle, can move along described pilot bar with described safe operation handle, described safe operation handle is that described hydraulic directional control valve controls corresponding hydraulic directional control valve operating handle when weight-lifting equipment reduces direction motion to moment, and described operating handle moves to respective direction along with described hydraulic directional control valve;
Described position transduser is arranged on above the baffle plate of described position, and the signal output part of described position transduser is connected with described main control system, for monitoring the position of described position baffle plate and sending energizing signal to described main control system;
When being in overload condition when weight-lifting equipment and running to the direction that moment reduces, the energizing signal that described main control system sends according to described position transduser removes overload warning signal.
2. overload warning according to claim 1 controls the limiter of moment of releasing automatically; it is characterized in that; also comprise electric liquid protective valve, described electric liquid protective valve is arranged on described hydraulic directional control valve, and described electric liquid protective valve is used for forbidding that when weight-lifting equipment overloads described hydraulic directional control valve runs.
3. overload warning according to claim 2 controls the limiter of moment of releasing automatically, it is characterized in that, when described main control system exports overload warning signal, described electric liquid protective valve starts; When described main control system removes overload warning signal, the start and stop of described electric liquid protective valve.
4. overload warning according to claim 1 controls the limiter of moment of releasing automatically, and it is characterized in that, also comprise springing, the movable end of described springing is connected with described position baffle plate, resets for making described position baffle plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520853666.1U CN205204655U (en) | 2015-10-31 | 2015-10-31 | Torque limiter that overload warning automatic control relieved |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520853666.1U CN205204655U (en) | 2015-10-31 | 2015-10-31 | Torque limiter that overload warning automatic control relieved |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205204655U true CN205204655U (en) | 2016-05-04 |
Family
ID=55842385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520853666.1U Withdrawn - After Issue CN205204655U (en) | 2015-10-31 | 2015-10-31 | Torque limiter that overload warning automatic control relieved |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205204655U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| WO2024040729A1 (en) * | 2022-08-24 | 2024-02-29 | 湖南星邦智能装备股份有限公司 | Method and system for controlling telescoping amplitude of aerial work platform |
-
2015
- 2015-10-31 CN CN201520853666.1U patent/CN205204655U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| WO2024040729A1 (en) * | 2022-08-24 | 2024-02-29 | 湖南星邦智能装备股份有限公司 | Method and system for controlling telescoping amplitude of aerial work platform |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160504 Effective date of abandoning: 20170405 |
|
| AV01 | Patent right actively abandoned |