CN2761561Y - Anti-falling interlocking device for crame gripping device - Google Patents
Anti-falling interlocking device for crame gripping device Download PDFInfo
- Publication number
- CN2761561Y CN2761561Y CN 200520038911 CN200520038911U CN2761561Y CN 2761561 Y CN2761561 Y CN 2761561Y CN 200520038911 CN200520038911 CN 200520038911 CN 200520038911 U CN200520038911 U CN 200520038911U CN 2761561 Y CN2761561 Y CN 2761561Y
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- China
- Prior art keywords
- feet
- control loop
- falling
- clamp
- contact
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- Expired - Fee Related
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Abstract
The utility model relates to an anti-falling device for a pair of crane tongs, which is an anti-falling interlocking device of a pair of crane tongs. The utility model is characterized in that the anti-falling device for a pair of crane tongs comprises a contact collision rod, return springs and spacing switches; anti-falling interlocking devices are arranged on feet of the tongs, and the upper sections of the tong feet are provided with a hole channel, wherein the spacing switches and the return springs are arranged in hole channels; one end of the contact collision rod is penetrated through the return springs and is arranged on the spacing switches, and the other end of the contact collision rod is extended out of the upper surface of the tong feet; after in parallel connected, contact points of the two spacing switches of a pair of tong feet are in series connected between a zero line and a clamping control loop of the tong feet and a spreading control loop, wherein the clamping control loop of the tong feet and the spreading control loop are in parallel connected. The accidents of steel coil falling, which are caused by the misoperation of operators in the process of hanging transportation of the tongs can be prevented, and thus the production of finished products, transportation equipment and personal safety can be ensured.
Description
(1) technical field
The utility model relates to hoisting crane clamp anti-fall device.
(2) background technology
For a large-scale iron and steel enterprise, the handling of coil of strip mainly relies on driving and clamp to finish.The principle of work of clamp can be understood as a manipulator, at operator's compartment the operation of switch is finished switching, the rotation of clamp by operating personal.Yet, in whole handling process,, many times must after coil of strip is liftoff, aloft be rotated, and then be placed in the goods yard of regulation or the railway carriage and reach on the flat truck because the loading and unloading point difference of product and the putting position of coil of strip also have nothing in common with each other.In order to finish this action, a lot of operating personals in operating process mistake with the on-off switch of clamp as rotary switch operating, cause that clamp is opened, coil of strip falls aloft, product, transportation device and personal safety are had serious consequences.
(3) summary of the invention
The purpose of this utility model is to provide a kind of hoisting crane clamp anti-fall interlock system, and this anti-fall interlock system can prevent that clamp maloperation owing to operating personal in handling from the coil of strip falling accident taking place, and guarantees finished product, transportation device and personal safety.
The utility model is achieved in that the anti-fall interlock system of a kind of hoisting crane clamp, it is characterized in that comprising contact lance, retracing spring and limit switch, described anti-fall interlock system is loaded on clamp pincers pin, clamp pincers pin top has the duct, the duct is built-in with limit switch and retracing spring, the contact lance passes retracing spring and places on the limit switch, and the contact lance other end stretches out pincers pin upper surface; Being serially connected in the pincers pin after two limit switch spacing contact parallel connections of a pair of pincers pin clamps control loop and opens control loop and connect between the line of back and zero line.
The utility model is that anti-fall interlock system is installed in perforate on existing clamp pincers pin, has both kept original function of clamp and operating mode, has increased safety guard again.The anti-fall interlock system that resets by mounting spring on two of clamp pincers pin, the control clamp clamps control loop and opens control loop, thereby prevent that effectively the operating personal maloperation from causing clamp to open the coil of strip falling accident that is taken place in handling, guarantees finished product, transportation device and personal safety.
(4) description of drawings
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Fig. 1 is the anti-fall interlock system structural representation of the utility model hoisting crane clamp;
Fig. 2 is the anti-fall interlock system electrical schematic diagram of hoisting crane clamp.
Among the figure: 1 clamp pincers pin, 2 limit switches, 3 retracing springs, 4 contact lances, 5 coil of strips; The control power supply is 220V, X
11Be phase line, X
22Be zero line, A, B, C are the operating switch contact, CTZ1, CTZ2 are cable coupler, FC is for opening contactless coil, and ZC is for clamping contactless coil, and FC1 is for opening the contactless switch secondary contact, ZC1 is for clamping the contactless switch secondary contact, 1JXK is for clamping spacing contact, and 2JXK is for opening spacing contact, and 3JXK, 4JXK are the spacing contact of anti-fall interlocking limit switch.
(5) specific embodiment
Referring to Fig. 1, the anti-fall interlock system of a kind of hoisting crane clamp, comprise contact lance 4, retracing spring 3 and limit switch 2, described anti-fall interlock system is loaded on clamp pincers pin 1, clamp pincers pin 1 epimere has the duct, the duct is built-in with limit switch 2 and retracing spring 3, and contact lance 4 passes retracing spring 3 and places on the limit switch 2, and contact lance 4 other ends stretch out pincers pin 1 upper surface.
Referring to Fig. 2, be serially connected in the pincers pin after the spacing contact 3JXK of two limit switches of a pair of pincers pin 1, the 4JXK parallel connection and clamp control loop and open control loop and meet back and zero line X
22Line between.
Work as X
11Phase line is connected by operating switch A point and B point, again through opening contactless switch secondary contact FC1 to clamping contactless coil ZC one end, the other end that clamps contactless coil ZC is through clamping spacing contact 1JXK and the spacing contact 3JXK of anti-fall interlocking limit switch, 4JXK to zero line X through cable coupler CTZ1 for source of AC
22Form a complete clamping control loop.
Work as X
11Phase line is connected by operating switch A point and C point, again through clamping contactless switch secondary contact ZC1 to opening contactless coil FC one end, the other end that opens contactless coil FC is through opening spacing contact 2JXK and the spacing contact 3JXK of anti-fall interlocking limit switch, 4JXK to zero line X through cable coupler CTZ2 for source of AC
22Form a complete control loop that opens.
When coil of strip 5 handlings, clamp 1 clamps coil of strip coil of strip 5 is mentioned, coil of strip 5 inside faces contact with the lance 4 that contacts of anti-fall interlock system, contact lance 4 moves downward and makes limit switch 2 disconnect, the spacing contact 3JXK of anti-fall interlocking, 4JXK are in off-state, whole electric control loop is in open-circuit condition, and power supply is cut off, and can't realize that promptly clamp 1 opens, clamp operation.Have only when coil of strip 5 with contact lance 4 and separate, be after coil of strip 5 lands, clamp pincers pin 1 separates with coil of strip 5 inside faces, contact lance 4 upward movement under the effect of retracing spring 3, make limit switch 2 closures, the spacing contact 3JXK of anti-fall interlocking, 4JXK closure could realize again that clamp 1 opens, clamp operation.So just prevented coil of strip 5 in high-altitude handling process because the generation of coil of strip 5 falling accidents that maloperation caused.
Claims (1)
1. anti-fall interlock system of hoisting crane clamp, it is characterized in that comprising contact lance, retracing spring and limit switch, described anti-fall interlock system is loaded on clamp pincers pin, clamp pincers pin epimere has the duct, the duct is built-in with limit switch and retracing spring, the contact lance passes retracing spring and places on the limit switch, and the contact lance other end stretches out pincers pin upper surface; Being serially connected in the pincers pin after two limit switch spacing contact parallel connections of a pair of pincers pin clamps control loop and opens control loop and connect between the line of back and zero line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520038911 CN2761561Y (en) | 2005-01-12 | 2005-01-12 | Anti-falling interlocking device for crame gripping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520038911 CN2761561Y (en) | 2005-01-12 | 2005-01-12 | Anti-falling interlocking device for crame gripping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2761561Y true CN2761561Y (en) | 2006-03-01 |
Family
ID=36094693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520038911 Expired - Fee Related CN2761561Y (en) | 2005-01-12 | 2005-01-12 | Anti-falling interlocking device for crame gripping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2761561Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100503414C (en) * | 2007-03-30 | 2009-06-24 | 沈阳铝镁设计研究院 | Clamper caging device for carbon block stacking overhead travelling crane |
| CN110217149A (en) * | 2018-03-02 | 2019-09-10 | 宝山钢铁股份有限公司 | Self-discharging truck cabinet and the linkage interlocked safety device of case lid |
| CN110549356A (en) * | 2019-09-05 | 2019-12-10 | 湖南万征机械科技有限公司 | Clamp structure for grabbing mechanical equipment |
-
2005
- 2005-01-12 CN CN 200520038911 patent/CN2761561Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100503414C (en) * | 2007-03-30 | 2009-06-24 | 沈阳铝镁设计研究院 | Clamper caging device for carbon block stacking overhead travelling crane |
| CN110217149A (en) * | 2018-03-02 | 2019-09-10 | 宝山钢铁股份有限公司 | Self-discharging truck cabinet and the linkage interlocked safety device of case lid |
| CN110549356A (en) * | 2019-09-05 | 2019-12-10 | 湖南万征机械科技有限公司 | Clamp structure for grabbing mechanical equipment |
| CN110549356B (en) * | 2019-09-05 | 2022-09-27 | 湖南万征机械科技有限公司 | Clamp structure for grabbing mechanical equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060301 Termination date: 20130112 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |