CN201890732U - Jib type lifting torque limiter - Google Patents
Jib type lifting torque limiter Download PDFInfo
- Publication number
- CN201890732U CN201890732U CN2010206157441U CN201020615744U CN201890732U CN 201890732 U CN201890732 U CN 201890732U CN 2010206157441 U CN2010206157441 U CN 2010206157441U CN 201020615744 U CN201020615744 U CN 201020615744U CN 201890732 U CN201890732 U CN 201890732U
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- limiter
- moment
- jib
- torque limiter
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Abstract
The utility model relates to a jib type lifting torque limiter, which is capable of overload limiting for lifting equipment and memory safety protection and comprises a weighing sensor and an angle sensor. The weighing sensor and the angle sensor are connected with a signal input end of a torque limiter through data lines. The jib type lifting torque limiter has the advantages of firstly, fine safety performance and high precision, and secondly, simple structure and convenience in mounting.
Description
Technical field
The utility model relates to a kind of jib-type load moment limiter with weight-lifting equipment overload restriction, memory safety protection function, belongs to elevator machinery safety guard field.
Background technology
Present jib-type lifting crane on structure design, is provided with overload restriction, memory safety guard-safeguard is set, so the running environment and the operational factor of its loop wheel machine, and the loop wheel machine operating personal often can't accurately be grasped, and causes the generation of work accident inevitably.
Summary of the invention
Design goal: avoid the weak point in the background technology, design a kind of jib-type load moment limiter with weight-lifting equipment overload restriction, memory safety protection function.
Design plan: hoisting crane is when work, need often to change operating mode and carry out hoisting operation according to on-site actual situations, as change lifting angle (amplitude) etc., and, minimum luffing maximum in following the maximum rated hoisting capacity that can lift by crane of different duty parameters and work is corresponding different, therefore need a covering device that above parametric synthesis monitoring is judged, make also corresponding warning of indication, prompting, the control of mode of operations such as hoisting crane normal operation, fully loaded, overload, the super upper limit of luffing, the super lower limit of luffing, with the normal operation of assurance elevator machinery.The utility model is on structure design for this reason; the hoisting crane limiter of moment in the course of the work; at first the various working parameter (angles of hoisting crane; weight; highly; brachium) detects by corresponding LOAD CELLS and angular transducer; through after the simulation amplification adjustment signal being delivered to motherboard; send into the core main frame after converting digital quantity to by A/D then; microprocessor is set and some status signals according to artificial again; after data are processed calculation process; on the one hand result is sent to demonstration; on the other hand the load characteristic curve of result and hoisting crane itself is compared; (this part curve is cured among the EPROM) also makes the judgement whether hoisting crane is in the clear working place; send control commands corresponding by microprocessor then, to reach the purpose of protection crane safety operation.
Technical scheme: the jib-type load moment limiter is made of LOAD CELLS, angular transducer, and LOAD CELLS is connected with the signal input part of limiter of moment by data line with angular transducer.
The utility model is compared with background technology, and the one, peaceful performance is good, precision is high; The 2nd, the jib-type load moment limiter is simple in structure, easy for installation.
Description of drawings
Fig. 1 is the scheme drawing after the jib-type load moment limiter is installed in crane.
The specific embodiment
Embodiment 1: with reference to accompanying drawing 1.The jib-type load moment limiter is characterized in that being made of LOAD CELLS 1, angular transducer 2, and LOAD CELLS 1 and angular transducer 2 are connected with the signal input part of, limiter of moment 3 by data line.Be provided with the analog amplify circuit signal input part in the described limiter of moment 3 and receive LOAD CELLS 1 and angular transducer 2 detection signals, the signal output termination motherboard of analog amplify circuit, motherboard signal output termination A/D changes the signal input part of growing up to be a useful person, A/D changes the defeated Zhou termination microprocessor signals input end of the signal of growing up to be a useful person, the signal output termination telltale of microprocessor and operator signals input end.
Embodiment 2: on the basis of embodiment 1, the crane of jib-type load moment limiter, it comprises crane, the steel cable rope of described hoist lifting hook is provided with LOAD CELLS 1, the arm lower end is provided with angular transducer 2, and LOAD CELLS 1 is connected by the signal input part of data line with the limiter of moment 3 that is positioned at the crane operator's compartment with angular transducer 2.The conventional control of load moment limiter has 3: the control of the amplitude upper limit, the control of amplitude lower limit, the overload control of respective amplitude.1, amplitude upper limit control: when armed lever ran to minimum radius (maximum angle), limiter of moment 3 sent sound and light alarm, and the amount of decrease loop is cut off in the actuating of relay of the amplitude upper limit, make armed lever stop amount of decrease, but secure side is moved in the past to (amplification).2, amplitude lower limit control: when armed lever ran to amplitude peak (minimum angles), limiter of moment 3 sent sound and light alarm, and the actuating of relay of the amplitude upper limit is cut off amplification and bribed, and make armed lever stop amplification, but secure side is moved in the past to (amount of decrease).3, overload control: when actual hoisting capacity reach rated load weight 95% the time, limiter of moment 3 sends fully loaded sound and light alarm, but do not control, when actual hoisting capacity reach rated weight 105% the time, limiter of moment 3 sends the overload sound and light alarm, overload relay action is cut off and is angled riser circuit and armed lever amplification loop, makes the crane can be toward secure side to motion (subtracting pair or off the hook).
What need understand is: though the foregoing description is to the mentality of designing of the present utility model detailed text description of contrasting; but these text descriptions; just the simple text of the utility model mentality of designing is described; rather than to the restriction of the utility model mentality of designing; any combination, increase or modification that does not exceed the utility model mentality of designing all falls in the protection domain of the present utility model.
Claims (2)
1. a jib-type load moment limiter is characterized in that being made of LOAD CELLS, angular transducer, and LOAD CELLS is connected with the signal input part of limiter of moment by data line with angular transducer.
2. jib-type load moment limiter according to claim 1, it is characterized in that: be provided with the analog amplify circuit signal input part in the described limiter of moment and receive LOAD CELLS and angular transducer detection signal, the signal output termination motherboard of analog amplify circuit, motherboard signal output termination A/D changes the signal input part of growing up to be a useful person, A/D changes the defeated Zhou termination microprocessor signals input end of the signal of growing up to be a useful person, the signal output termination telltale of microprocessor and operator signals input end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206157441U CN201890732U (en) | 2010-11-21 | 2010-11-21 | Jib type lifting torque limiter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206157441U CN201890732U (en) | 2010-11-21 | 2010-11-21 | Jib type lifting torque limiter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201890732U true CN201890732U (en) | 2011-07-06 |
Family
ID=44220208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206157441U Expired - Lifetime CN201890732U (en) | 2010-11-21 | 2010-11-21 | Jib type lifting torque limiter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201890732U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104045011A (en) * | 2014-06-20 | 2014-09-17 | 王远志 | Crane moment limiter |
| CN106829744A (en) * | 2017-04-06 | 2017-06-13 | 徐工集团工程机械有限公司 | Crane control method, device and system |
| CN106927369A (en) * | 2017-03-30 | 2017-07-07 | 徐工集团工程机械有限公司 | Lorry-mounted crane and its job safety guard method, device and system |
| CN117208819A (en) * | 2023-11-09 | 2023-12-12 | 临工重机股份有限公司 | Control method of telescopic boom forklift supporting leg and telescopic boom forklift |
-
2010
- 2010-11-21 CN CN2010206157441U patent/CN201890732U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104045011A (en) * | 2014-06-20 | 2014-09-17 | 王远志 | Crane moment limiter |
| CN106927369A (en) * | 2017-03-30 | 2017-07-07 | 徐工集团工程机械有限公司 | Lorry-mounted crane and its job safety guard method, device and system |
| CN106829744A (en) * | 2017-04-06 | 2017-06-13 | 徐工集团工程机械有限公司 | Crane control method, device and system |
| CN117208819A (en) * | 2023-11-09 | 2023-12-12 | 临工重机股份有限公司 | Control method of telescopic boom forklift supporting leg and telescopic boom forklift |
| CN117208819B (en) * | 2023-11-09 | 2024-02-02 | 临工重机股份有限公司 | Control method of telescopic boom forklift supporting leg and telescopic boom forklift |
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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 |
Granted publication date: 20110706 |
|
| CX01 | Expiry of patent term |