CN1328953A - Superacceleration protection device - Google Patents
Superacceleration protection device Download PDFInfo
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- CN1328953A CN1328953A CN 01120569 CN01120569A CN1328953A CN 1328953 A CN1328953 A CN 1328953A CN 01120569 CN01120569 CN 01120569 CN 01120569 A CN01120569 A CN 01120569A CN 1328953 A CN1328953 A CN 1328953A
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- superacceleration
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- 238000012856 packing Methods 0.000 claims description 3
- 230000000712 assembly Effects 0.000 claims description 2
- 238000000429 assembly Methods 0.000 claims description 2
- 230000001133 acceleration Effects 0.000 description 8
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000009885 systemic effect Effects 0.000 description 1
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Abstract
The present invention relates to a novel mechanical type safety equipment adopting the principle of overacceleration protection instead of overspeed protection for lifting system of hoister. The said invention is simple in structure and reliable, when it is used in lifting system of various hoister, elevator and mine winder, it can effectively prevent load from dropping when said system is out of control. This invented equipment is specially applicable to lifting and cantilever lifting system of port layer-type crane of container loading and unloaidng bridge, etc.
Description
The present invention is a kind of various crane hoisting hoisting systems that can be applicable to, and prevents the safety guard that load is fallen suddenly when out of control.
The hoisting system that hoists of existing various hoisting crane, mine winch, elevator generally had only the speed fender guard.This speed fender guard of crossing is in system when out of control; the speed of falling of load just can provide the emergency brake signal after greater than command speed; and existing all kinds of drg is being impossible in time check brake wheel in the very short time under the situation of brake wheel high speed revolution; stop falling of load effectively; often cause the brake facing scaling loss because of violent friction heating; braking failure, so that serious machine damage, goods damage and human casualty accident take place.So the existing various machine hoisting system that hoists, particularly at the harbour large scale hoisting machinery, the safety protection function in the hoisting system that hoists of mine winch is incomplete.
The purpose of this invention is to provide a kind of existing various crane hoisting system that is applied to, stop falling of load timely and effectively when out of control, prevent serious machine and decrease the new type of safe fender guard of goods damage and human casualty accident in system.
The method that the present invention realizes is to adopt acceleration/accel protection to replace speed protection; a kind of Superacceleration protection device promptly is set in the crane hoisting system; judge by the angular acceleration values that detects transmission shaft whether system is out of control; if should be worth the protection value that surpasses systemic presupposition; this device provides signal immediately; make the arrester close of system, under the very low situation of initial stage rotating speed out of control, in time check brake wheel, reach the purpose of falling that stops load.
Superacceleration protection device of the present invention mainly is made up of casing and supporting member 1, ball screw assembly, 2, spring assembly 3, travel switch assembly 4 etc.This device can be connected with coupler with arbitrary axle in the hoisting system, also can with leading screw one end directly and in the hoisting system arbitrary affixed.
Accompanying drawing 1 be in of the present invention and the hoisting system arbitrary with coupler bonded assembly Superacceleration protection device scheme of maneuver.Accompanying drawing 2 be among the present invention with hoisting system in arbitrary with coupler bonded assembly Superacceleration protection device constructional drawing.Wherein casing and supporting member 1 mainly comprise two ball bearing of main shaft 1-1, housing 1-2, left end cap 1-3, right end cap 1-4 etc.; Ball screw assembly, 2 mainly comprises flywheel 2-1, ball nut 2-2, ball-screw 2-3 etc., and flywheel 2-1 and ball nut 2-2 fix as one or make an integral body.Ball-screw 2-3 is two ends ball bearing of main shaft freely-supporteds, and arbitrary axle is connected with coupler in left end and the hoisting system, and right-hand member also can connect other and install, and the rotation direction of leading screw can be left-handed or dextrorotation; Spring assembly 3 mainly comprises thrust ball bearing 3-1, baffle ring 3-2, spring 3-3 and packing ring 3-4; Travel switch assembly 4 mainly comprises travel switch 4-1, support 4-2 etc., and travel switch can have open contact and normally closed contact, and the quantity of all kinds of contacts is any.Nut keeps left also static or rotates with speed with leading screw during static or uniform rotation when ball-screw; When leading screw normally quickens to rotate, the nut combinations body of being made up of flywheel 2-1 and ball nut 2-2 is because of there being certain moment of inertia, rotating speed is lower than the rotating speed of leading screw 2-3, so overcoming the pressure of spring moves right, but do not touch travel switch, after acceleration/accel disappeared, nut moved to left under the pressure effect of spring and resets; Out of control when system, when load was fallen, the angular acceleration that leading screw rotates was bigger, the nut combinations body moves to right more, and in very short time, baffle ring 3-2 has touched travel switch 4-1 after load begins to fall, provide emergency mobile forces stop signal, make the arrester close of system, stoped the continuation of load to be fallen.The adjustable positions of traversing carriage 4-2 is had suffered the size of acceleration protection preset value.The acceleration protection excessively that hand of rotation is opposite need only get final product end about this device to hanging use.
Accompanying drawing 3 be leading screw one end directly with hoisting system in arbitrary affixed, right-hand member also can connect the Superacceleration protection device constructional drawing of other devices.Have only a ball bearing of main shaft 1-1, housing 1-2 and right end cap 1-4 in this device in casing and the supporting member 1.
Accompanying drawing 4 is the Superacceleration protection device constructionals drawing that can protect simultaneously at two hand of rotation among the present invention.The left side of this device and the structure on the right are basic identical, have two sleeve spring assemblies 3, travel switch assembly 4.Wherein spring assembly 3 mainly comprises thrust ball bearing 3-1, baffle ring 3-2, spring 3-3 and packing ring 3-4; Travel switch assembly 4 mainly comprises travel switch 4-1, support 4-2 etc.
Accompanying drawing 5 be among the present invention leading screw one end directly with hoisting system in arbitrary affixed; right-hand member do not connect other devices the Superacceleration protection device scheme of maneuver, this device mainly also is made up of casing and supporting member 1, ball screw assembly, 2, spring assembly 3, travel switch 4 etc.Its principle of work is identical with the Superacceleration protection device of before chatting.Accompanying drawing 6 is its constructionals drawing.Wherein casing and supporting member 1 mainly comprise plain bearing 1-1, housing 1-2 etc.; Ball screw assembly, 2 mainly comprises flywheel 2-1, ball nut 2-2, ball-screw 2-3 etc.; Spring assembly 3 mainly comprises thrust ball bearing 3-1, push rod 3-2, spring 3-3 etc.; Travel switch assembly 4 mainly comprises travel switch 4-1, support 4-2 etc.Out of control when system, the angular acceleration that leading screw rotates is bigger, and push rod 3-2 moves to right and touches travel switch 4-1, provides emergency mobile forces stop signal.The adjustable positions of shift motion switch 4-1 is had suffered the size of acceleration protection preset value.
The present invention is simple in structure, reliable effect, being applied to various automatic controlling level can prevent because of debugging system improper or that electrical accident causes during hoisting system out of control than hoisting of higher hoisting crane, elevator and mine winch, load machine such as fall decreases, goods damage and human casualty accident, invest for a short time, economic benefit and social benefit are obvious.
Most preferred embodiment of the present invention is that the master who is applied to harbour goliaths such as container loading bridge hoists and the cantilever landing system, can thoroughly stop the bob case accident out of control that a variety of causes causes.
Claims (10)
1. crane hoisting system Superacceleration protection device is characterized in that said fender guard is made up of casing and supporting member 1, ball screw assembly, 2, spring assembly 3, travel switch assembly 4 etc.
2. the Superacceleration protection device of chatting according to claim 1; its feature is that also said ball screw assembly, 2 mainly comprises flywheel 2-1, ball nut 2-2, ball-screw 2-3; spring assembly 3 mainly comprises thrust ball bearing 3-1, baffle ring 3-2, spring 3-3 and packing ring 3-4, and travel switch assembly 4 mainly comprises travel switch 4-1, support 4-2 etc.
3. its feature of Superacceleration protection device of chatting according to claim 1, claim 2 is that also said flywheel 2-1 and ball nut 2-2 fix as one.
4. its feature of Superacceleration protection device of chatting according to claim 1, claim 2 is that also said flywheel 2-1 and ball nut 2-2 are an integral body.
5. the Superacceleration protection device of chatting according to claim 1, claim 2, claim 3, its feature is that also said travel switch can have open contact and normally closed contact, the quantity of all kinds of contacts is any.
6. the Superacceleration protection device of chatting according to claim 1, claim 2, claim 4, its feature is that also said travel switch can have open contact and normally closed contact, the quantity of all kinds of contacts is any.
7. the Superacceleration protection device of chatting according to claim 1, claim 2, its feature also be in the said ball screw assembly, 2 leading screw 2-3 one end directly with hoisting system in arbitrary affixed.
8. the Superacceleration protection device of chatting according to claim 1, claim 2, its feature are that also arbitrary axle is connected with coupler in leading screw 2-3 left end and the hoisting system in the said ball screw assembly, 2, and right-hand member also can connect other devices.
9. the Superacceleration protection device of chatting according to claim 1, claim 2, its feature also has been two sleeve spring assemblies 3 and travel switch assembly 4, the structure on the left side and the right is basic identical.
10. the Superacceleration protection device of chatting according to claim 1, claim 2; its feature also be in the said ball screw assembly, 2 leading screw 2-3 one end directly with hoisting system in arbitrary affixed; right-hand member does not connect other devices; casing and supporting member 1 mainly comprise plain bearing 1-1, housing 1-2; spring assembly 3 mainly comprises thrust ball bearing 3-1, push rod 3-2, spring 3-3, and travel switch assembly 4 mainly comprises travel switch 4-1, support 4-2 etc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011205695A CN1151953C (en) | 2001-07-23 | 2001-07-23 | Superacceleration protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011205695A CN1151953C (en) | 2001-07-23 | 2001-07-23 | Superacceleration protection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1328953A true CN1328953A (en) | 2002-01-02 |
| CN1151953C CN1151953C (en) | 2004-06-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011205695A Expired - Fee Related CN1151953C (en) | 2001-07-23 | 2001-07-23 | Superacceleration protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1151953C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100542941C (en) * | 2003-08-25 | 2009-09-23 | 德马格起重机及部件有限公司 | Be used to monitor the method and the chain type polyspast of chain type polyspast |
| CN101789330A (en) * | 2010-03-23 | 2010-07-28 | 上海能港电气工程科技有限公司 | Mechanical rotational angle super acceleration switching device |
| WO2013000203A1 (en) * | 2011-06-29 | 2013-01-03 | 长沙中联重工科技发展股份有限公司 | Method and system for determining malfunction of hydraulic winch mechanism |
-
2001
- 2001-07-23 CN CNB011205695A patent/CN1151953C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100542941C (en) * | 2003-08-25 | 2009-09-23 | 德马格起重机及部件有限公司 | Be used to monitor the method and the chain type polyspast of chain type polyspast |
| CN101789330A (en) * | 2010-03-23 | 2010-07-28 | 上海能港电气工程科技有限公司 | Mechanical rotational angle super acceleration switching device |
| CN101789330B (en) * | 2010-03-23 | 2013-03-27 | 上海能港电气工程科技有限公司 | Mechanical rotational angle super acceleration switching device |
| WO2013000203A1 (en) * | 2011-06-29 | 2013-01-03 | 长沙中联重工科技发展股份有限公司 | Method and system for determining malfunction of hydraulic winch mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1151953C (en) | 2004-06-02 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |