CN104030050B - A kind of adjustable force moment preventing bucket wheel from excavating unexpected overload limits device - Google Patents
A kind of adjustable force moment preventing bucket wheel from excavating unexpected overload limits device Download PDFInfo
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- CN104030050B CN104030050B CN201410277458.1A CN201410277458A CN104030050B CN 104030050 B CN104030050 B CN 104030050B CN 201410277458 A CN201410277458 A CN 201410277458A CN 104030050 B CN104030050 B CN 104030050B
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- bucket wheel
- nut
- limit switch
- spring
- excavating
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Abstract
A kind of adjustable force moment preventing bucket wheel from excavating unexpected overload being applied in harbour, metallurgy, electric power, coal, building material industry limits device, ferrum, cover plate, pressing plate, cylinder, spring, limit switch is hit including screw rod, nut, fraising on screw rod is connected with bucket wheel toggle B by hinge, and the fraising on cylinder is connected with jib C by hinge；Fix by spring-compressed and with nut with cover plate and pressing plate；Limit switch is fixed on nut and hits the top of ferrum；Again cylinder is fixed with cover plate bolt；The operation principle of described device is, calculates spring nominal operation stroke d according to nominal operation torquemeter, and scene is adjusted, and when bucket wheel overloads, nut hits ferrum touching limit switch and makes bucket wheel driving means A out of service, and protection motor, reductor is without damage.This device avoids the vitals such as motor, reductor overload to damage, be limited to by bucket wheel machine tilting moment in a safety range, extend the service life of bucket wheel machine, it is ensured that equipment is properly functioning.
Description
Technical field
A kind of adjustable force moment preventing bucket wheel from excavating unexpected overload of the bucket wheel driving means that the present invention relates to industrial undertaking stock ground the used bucket wheel machine equipment in harbour, metallurgy, electric power, coal, building material industry limits device.
Background technology
At present, the countertorque of the bucket wheel drive mechanism on bucket-wheel stacker reclaimer is by torque arm and jib rigidly connected (such as Fig. 2), when bucket wheel device is when excavating material, when run into bulk or material landslide make reaction torque increase make bucket wheel driving means be in overload, make motor reducer severely damaged due to long-time overload work, cause economic loss and to affect equipment properly functioning, reduce service life.Therefore, develop a kind of adjustable force moment restriction device preventing bucket wheel from excavating unexpected overload and be always new problem anxious to be resolved.
Summary of the invention
It is an object of the invention to provide a kind of adjustable force moment preventing bucket wheel from excavating unexpected overload and limit device, this device avoids the vitals such as motor, reductor overload to damage, and bucket wheel machine tilting moment is limited in a safety range, extend the service life of bucket wheel machine, it is ensured that equipment is properly functioning.
The object of the present invention is achieved like this: a kind of adjustable force moment preventing bucket wheel from excavating unexpected overload limits device, ferrum, cover plate, pressing plate, cylinder, spring, limit switch is hit including screw rod, nut, fraising on screw rod is connected with bucket wheel toggle B by hinge, and the fraising on cylinder is connected with jib C by hinge；Fix by spring-compressed and with nut with cover plate and pressing plate；Limit switch is fixed on nut and hits the top of ferrum；Again cylinder is fixed with cover plate bolt；Calculating spring nominal operation stroke d according to nominal operation torquemeter, and be adjusted at the scene, when bucket wheel overloads, nut hits ferrum touching limit switch and makes bucket wheel driving means A out of service, thus effectively protects the vitals such as motor, reductor without damage；Guarantee equipment is properly functioning, increase the service life；Bucket wheel driving means A, when excavating material, when running into bulk or material landslide makes reaction torque increase and exceedes spring rated value, and then pulls screw rod by bucket wheel toggle B, makes screw rod increase, and touches limit switch action and controls motor and quit work；Avoid motor, reductor vitals overload to damage, and bucket wheel machine tilting moment is limited in a safety range, extend the service life of bucket wheel machine, it is ensured that equipment is properly functioning.
The present invention is characterized by its structure and working principle.Its operation principle and operational approach are; spring nominal operation stroke d is calculated according to nominal operation torquemeter; and be adjusted at the scene, when bucket wheel overloads, nut hits ferrum touching limit switch and makes bucket wheel driving means A out of service, thus effectively protects the vitals such as motor, reductor without damage；Guarantee equipment is properly functioning, increase the service life；Bucket wheel driving means A, when excavating material, when running into bulk or material landslide makes reaction torque increase and exceedes spring rated value, and then pulls screw rod by bucket wheel toggle B, makes screw rod increase, and touches limit switch action and controls motor and quit work；Avoid motor, reductor vitals overload to damage, and bucket wheel machine tilting moment is limited in a safety range, extend the service life of bucket wheel machine, it is ensured that equipment is properly functioning.
A kind of adjustable force moment preventing bucket wheel from excavating unexpected overload limits device compared with prior art, there is the service life avoiding the vitals such as motor, reductor overload to damage, be limited to by bucket wheel machine tilting moment in a safety range, extend bucket wheel machine, the advantages such as guarantee equipment is properly functioning, will be widely used in harbour, metallurgy, electric power, coal, building material industry.
Accompanying drawing explanation
Below in conjunction with the accompanying drawings and embodiment the present invention is described in detail.
Fig. 1 is the structural representation of the present invention.
Fig. 2 is that the bucket wheel driving means of prior art is rigidly connected form schematic perspective view.
Detailed description of the invention
Referring to the drawings 1, a kind of adjustable force moment preventing bucket wheel from excavating unexpected overload limits device, ferrum 2, cover plate 3, pressing plate 4, cylinder 5, spring 6, limit switch 7 is hit including screw rod 1, nut, fraising on screw rod 1 is connected with bucket wheel toggle B by hinge, and the fraising on cylinder 5 is connected with jib C by hinge；Spring 6 is compressed with cover plate 3 and pressing plate 4 and fixes with nut；Limit switch 7 is fixed on nut and hits the top of ferrum 2；Again cylinder 5 is fixed with bolt with cover plate 3.Calculating spring nominal operation stroke d according to nominal operation torquemeter, and be adjusted at the scene, when bucket wheel overloads, nut hits ferrum 2 and touches limit switch 7 and make bucket wheel driving means A out of service, thus effectively protects the vitals such as motor, reductor without damage；Guarantee equipment is properly functioning, increase the service life；Bucket wheel driving means A, when excavating material, when running into bulk or material landslide makes reaction torque increase and exceedes spring 6 rated value, and then pulls screw rod 1 by bucket wheel toggle B, makes screw rod 1 increase, and touches limit switch 2 action and controls motor and quit work；Avoid motor, reductor vitals overload to damage, and bucket wheel machine tilting moment is limited in a safety range, extend the service life of bucket wheel machine, it is ensured that equipment is properly functioning.
In Fig. 1, A represents bucket wheel driving means, and B represents bucket wheel toggle, C represent jib, E represent bucket wheel cutting material time reaction torque direction.In Fig. 2, G represents herein for being rigidly connected.
Claims (1)
1. the adjustable force moment preventing bucket wheel from excavating unexpected overload limits device, ferrum, cover plate, pressing plate, cylinder, spring, limit switch is hit including screw rod, nut, it is characterized in that: the fraising on screw rod is connected with bucket wheel toggle B by hinge, and the fraising on cylinder is connected with jib C by hinge；Fix by spring-compressed and with nut with cover plate and pressing plate；Limit switch is fixed on nut and hits the top of ferrum；Again cylinder is fixed with cover plate bolt；Operation principle and the operational approach of described a kind of adjustable force moment restriction device preventing bucket wheel from excavating unexpected overload are; spring nominal operation stroke d is calculated according to nominal operation torquemeter; and be adjusted at the scene; when bucket wheel overloads, nut hits ferrum touching limit switch and makes bucket wheel driving means A out of service, thus effectively protects motor, reductor vitals without damage；Guarantee equipment is properly functioning, increase the service life；Bucket wheel driving means A, when excavating material, when running into bulk or material landslide makes reaction torque increase and exceedes spring rated value, and then pulls screw rod by bucket wheel toggle B, makes screw rod increase, and touches limit switch action and controls motor and quit work；Avoid motor, reductor vitals overload to damage, and bucket wheel machine tilting moment is limited in a safety range.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410277458.1A CN104030050B (en) | 2014-06-20 | 2014-06-20 | A kind of adjustable force moment preventing bucket wheel from excavating unexpected overload limits device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410277458.1A CN104030050B (en) | 2014-06-20 | 2014-06-20 | A kind of adjustable force moment preventing bucket wheel from excavating unexpected overload limits device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104030050A CN104030050A (en) | 2014-09-10 |
| CN104030050B true CN104030050B (en) | 2016-08-24 |
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| CN201410277458.1A Active CN104030050B (en) | 2014-06-20 | 2014-06-20 | A kind of adjustable force moment preventing bucket wheel from excavating unexpected overload limits device |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2706454Y (en) * | 2004-06-07 | 2005-06-29 | 杭州天铭机电工具有限公司 | Torque limiter for electric rope hoist |
| TW200720180A (en) * | 2005-11-30 | 2007-06-01 | Kito Kk | Overload proof apparatus for windlass |
| CN201202786Y (en) * | 2008-06-03 | 2009-03-04 | 梁开峰 | Transmission shaft with overload automatic protection apparatus |
| CN201447722U (en) * | 2009-05-22 | 2010-05-05 | 无锡市通用机械厂有限公司 | Bidirectional overload protector for drive mechanism |
| CN201910708U (en) * | 2011-01-19 | 2011-07-27 | 福建雪人股份有限公司 | Overload protection device of ice blade motor of ice making machine |
| CN203321037U (en) * | 2013-07-15 | 2013-12-04 | 上海东亿元城市规划设计有限公司 | Overload and chain-breakage detecting device of lifting and traversing type stereo garage |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1003503B (en) * | 1985-08-31 | 1989-03-08 | 同济大学 | Overloading-resistance safety apparatus for hydraulic truck cranes |
-
2014
- 2014-06-20 CN CN201410277458.1A patent/CN104030050B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2706454Y (en) * | 2004-06-07 | 2005-06-29 | 杭州天铭机电工具有限公司 | Torque limiter for electric rope hoist |
| TW200720180A (en) * | 2005-11-30 | 2007-06-01 | Kito Kk | Overload proof apparatus for windlass |
| CN201202786Y (en) * | 2008-06-03 | 2009-03-04 | 梁开峰 | Transmission shaft with overload automatic protection apparatus |
| CN201447722U (en) * | 2009-05-22 | 2010-05-05 | 无锡市通用机械厂有限公司 | Bidirectional overload protector for drive mechanism |
| CN201910708U (en) * | 2011-01-19 | 2011-07-27 | 福建雪人股份有限公司 | Overload protection device of ice blade motor of ice making machine |
| CN203321037U (en) * | 2013-07-15 | 2013-12-04 | 上海东亿元城市规划设计有限公司 | Overload and chain-breakage detecting device of lifting and traversing type stereo garage |
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| Publication number | Publication date |
|---|---|
| CN104030050A (en) | 2014-09-10 |
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