CN2825570Y - Hand-operated mechanism for hoisting mechanism of crane - Google Patents
Hand-operated mechanism for hoisting mechanism of crane Download PDFInfo
- Publication number
- CN2825570Y CN2825570Y CN 200520128465 CN200520128465U CN2825570Y CN 2825570 Y CN2825570 Y CN 2825570Y CN 200520128465 CN200520128465 CN 200520128465 CN 200520128465 U CN200520128465 U CN 200520128465U CN 2825570 Y CN2825570 Y CN 2825570Y
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- hand
- operated
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- ratchet
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- Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
- Control And Safety Of Cranes (AREA)
Abstract
The utility model discloses a hand-operated mechanism for a hoisting mechanism of a crane, which is suitable for molding a crane, a nuclear power special type crane and other hoisting devices with hand-operated requirements. The hand-operated mechanism has the structural composition that the hand-operated mechanism comprises a clutch and a safety interlock switch. The utility model is characterized in that the utility model also comprises a hoisting hand-operated device which is composed of a shaking handle, a pressing disk, a ratchet wheel, a ratchet pawl, a friction sheet and a chain wheel. The utility model realizes hand-operated lifting load and solves the problem that the load only can drop and can not rise during the power off and motor fault time. Furthermore, the utility model has the advantages of simple structure, easy installation, convenient and safe operation and low cost, therefore the utility model can be suitable for various cranes with hand-operated requirements.
Description
Technical field
The hand gear of crane hoisting mechanism described in the utility model relates to the crane in bridge type that is used for foundry shop, and/or is used for equipment and other weight-lifting equipment that manual requirement is arranged of reactor loading and unloading material.
Background technology
At present, crane in bridge type is not established special manual lifting mechanism, when accidents such as generation outage and motor fault, can only utilize the deadweight of load that load is put down by the mode of opening brake block, and can not lifted load.This mode of operation is for as ladle carne, and especially the polar crane of used in nuclear power station and spentnuclear fuel container hoisting crane etc. are definitely unallowed; During for pre-anti-power failure and motor fault catastrophic failure taking place, can under above-mentioned catastrophic failure situation load be placed into safety zone, necessarily requires to be provided with the manual lifting mechanism of interlocking mutually with the crane motor structure.
Summary of the invention
In view of the existing in prior technology problem, the object of the invention is when outage with during motor fault, and realization can descend load again can lifted load, thus the problem that solution keeps dropping.
The utility model technical solution is achieved in that
A kind of hand gear of crane hoisting mechanism, comprise power-transfer clutch and safety interlock switch, it is characterized in that also comprising the manual unit that hoists, this manual unit that hoists is contained in the top of support, the sprocket wheel I wherein and the sprocket wheel II of lifting mechanism form a mechanical drive train, safety interlock switch is installed on the power-transfer clutch, and two semiaxis of power-transfer clutch binding respectively are connected in the rotating shaft of lifting mechanism high speed shaft and sprocket wheel II.
The described manual unit that hoists comprises crank, platen, ratchet, friction lining, sprocket wheel I, wherein crank is installed on the pivot shaft, platen, ratchet are installed on the pivot shaft successively, friction lining all is equipped with in the ratchet both sides, sprocket wheel I binding is connected on the pivot shaft, ratchet be installed on the support and with ratchet interlock mutually.
Compared with prior art, the hand gear of crane hoisting mechanism described in the utility model has been realized the manual lifted load of lifting mechanism, can be widely used in having the hoisting crane of manual requirement, simple in structure, be easy to install, easy to operate and safe and reliable, cost is low, its effect is apparent.
Description of drawings
Fig. 1 is the structural representation of the hand gear of crane hoisting mechanism.
Fig. 2 is the A-A cross section view of Fig. 1.
Fig. 3 is the left view of Fig. 1.
Fig. 1 is a specification digest accompanying drawing of the present utility model.
Among the above-mentioned figure: 1, crank 2, platen 3, ratchet 4, friction lining 5, support 6, sprocket wheel I7, sprocket wheel II 8, power-transfer clutch 9, safety interlock switch 10, lifting mechanism high speed shaft 11 ratchets
The specific embodiment
The hand gear of a kind of crane hoisting mechanism as shown in the figure, its structure is formed and is comprised crank 1, platen 2, ratchet 3, friction lining 4, support 5, sprocket wheel I6, sprocket wheel II7, power-transfer clutch 8, safety interlock switch 9, ratchet 11, wherein safety interlock switch 9 is installed on the power-transfer clutch 8, two semiaxis of power-transfer clutch 8 binding respectively are connected in the rotating shaft of lifting mechanism high speed shaft 10 and sprocket wheel II7, realize manually and electrically operated interlocking; When using hand gear, rotate crank 1, pressing friction sheet 4, driving load by chain-driving rises, at this moment because the effect of ratchet 3, ratchet 11, can only folk prescription to operation, pinned descent direction, even decontrol crank 1, can not cause load to fall yet, thereby form load operating brake, guarantee when the crane hoisting mechanism brake block is all opened, hold on load, prevent out of control; During decline, artificially ratchet 11 is thrown off, slowly unclamp crank 1, reduce friction lining 4 thrusts, deadweight descends it by load, thereby has reduced people's labour intensity.125N need exert oneself when using this hand gear manual drives crank to promote 100T load; Manually control down, continuous working 1 hour, the stroke 0.55M that hoists is greater than this value during decline.
Claims (2)
1, a kind of hand gear of crane hoisting mechanism, comprise power-transfer clutch (8) and safety interlock switch (9), it is characterized in that also comprising the manual unit that hoists, this manual unit that hoists is contained in the top of support (5), the sprocket wheel I (6) wherein and the sprocket wheel II (7) of lifting mechanism form a mechanical drive train, power-transfer clutch (8) is gone up dress safety interlock switch (9), and two semiaxis of power-transfer clutch are packed in respectively in the rotating shaft of lifting mechanism high speed shaft and sprocket wheel II (7).
2, the hand gear of a kind of crane hoisting mechanism according to claim 1, it is characterized in that the described manual unit that hoists comprises crank (1), platen (2), ratchet (3), friction lining (4), sprocket wheel I (6), wherein crank (1) is installed on the pivot shaft, platen (2), ratchet (3) are installed on the pivot shaft successively, friction lining (4) all is equipped with in the ratchet both sides, sprocket wheel I (6) is installed on the pivot shaft, ratchet (11) be installed on that support (5) is gone up and with ratchet (3) interlock mutually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520128465 CN2825570Y (en) | 2005-10-11 | 2005-10-11 | Hand-operated mechanism for hoisting mechanism of crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520128465 CN2825570Y (en) | 2005-10-11 | 2005-10-11 | Hand-operated mechanism for hoisting mechanism of crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2825570Y true CN2825570Y (en) | 2006-10-11 |
Family
ID=37065756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520128465 Expired - Lifetime CN2825570Y (en) | 2005-10-11 | 2005-10-11 | Hand-operated mechanism for hoisting mechanism of crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2825570Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101830399A (en) * | 2010-05-20 | 2010-09-15 | 大连华锐股份有限公司 | Hand-operated driving device for crane |
| CN105174110A (en) * | 2015-08-25 | 2015-12-23 | 大连华锐重工集团股份有限公司 | Crane hoisting mechanism with anti-falling type hand-operating device for nuclear power station |
-
2005
- 2005-10-11 CN CN 200520128465 patent/CN2825570Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101830399A (en) * | 2010-05-20 | 2010-09-15 | 大连华锐股份有限公司 | Hand-operated driving device for crane |
| CN101830399B (en) * | 2010-05-20 | 2012-01-11 | 大连华锐股份有限公司 | Hand-operated driving device for crane |
| CN105174110A (en) * | 2015-08-25 | 2015-12-23 | 大连华锐重工集团股份有限公司 | Crane hoisting mechanism with anti-falling type hand-operating device for nuclear power station |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: DALIAN HUARUI HEAVY INDUSTRY GROUP CO., LTD. Free format text: FORMER OWNER: HUARUI CO., LTD., DALIAN Effective date: 20120419 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120419 Address after: 116013 Bayi Road, Xigang District, Liaoning, China, No. 169, No. Patentee after: Dalian Huarui Heavy Industry Group Co., Ltd. Address before: 116013 Bayi Road, Xigang District, Liaoning, China, No. 169, No. Patentee before: Huarui Co., Ltd., Dalian |
|
| CX01 | Expiry of patent term |
Granted publication date: 20061011 |
|
| EXPY | Termination of patent right or utility model |