CN201777789U

CN201777789U - Angle positioning device for lifting hook of traveling crane

Info

Publication number: CN201777789U
Application number: CN2010202825701U
Authority: CN
Inventors: 荣鸿伟; 陈闻; 曹彧华; 高云; 唐秀明
Original assignee: Baoshan Iron and Steel Co Ltd
Current assignee: Baoshan Iron and Steel Co Ltd; Baosteel Group Corp
Priority date: 2010-08-05
Filing date: 2010-08-05
Publication date: 2011-03-30
Anticipated expiration: 2020-08-05

Abstract

The utility model relates to a lifting hook for a traveling crane, in particular to an angle positioning device for a lifting hook of a traveling crane. The angle positioning device comprises a flange, a framework, a connecting pin and side plates, wherein the flange is fixed on a hook neck of the lifting hook; the hook neck is in hub connection with the interior of the framework through a plane bearing; the side plates with through holes formed thereon are arranged on the left side and the right side of the framework; and the connecting pin penetrates the through holes on the side plates to connect the side plates with the framework. The angle positioning device further comprises an angle positioning mechanism, a mounting groove is formed on the front side surface of the framework; a pin slot corresponding to the mounting groove is formed at the external diameter end of the flange; the angle positioning mechanism including an L-shaped positioning pin and a pin baffle is mounted in the mounting groove and the pin slot; one end of the positioning pin is hinged inside the mounting groove on the framework, and the other end is inserted into the pin slot on the flange; and the pin baffle is arranged on the outer side of the positioning pin to keep off the positioning pin. The angle positioning device enables the lifting hook to be accurately centered and positioned in the lifting process, and has the advantages of high positioning precision, simple structure and convenience in use.

Description

The travelling crane hook angle positioning device

Technical field

The utility model relates to travelling crane hook, relates in particular to the travelling crane hook angle positioning device.

Background technology

At present, the backing roll that milling train is mainly born in domestic hot rolling factory owner rolling line driving changes and the master rolls tasks such as striding equipment maintenance, and its main hook is a T shape double hook, and backing roll need be equipped with the backing roll special hanger when changing.Because the band steel has the certain quality requirement in process of production, especially the quality of production of band steel such as silicon steel, high strength steel, pipe line steel, Automobile Plate is had relatively high expectations, therefore also higher to the accuracy requirement of milling train backing roll, with regard to needing backing roll is changed when precision is relatively poor.

But, when rolling line carries out backing roll replacing operation, the weight of every backing roll (containing bearing seat) is bigger, generally about 100 tons, so when carrying out anvil roll replacing operation, positioning accuracy request to travelling crane hook is higher, in case the process middle rolling car suspension hook in roll change ceaselessly rocks, and needs operating personal pushing away the anvil roll suspender simultaneously, to guarantee the suspension hook position stability, just can finish the roll change task, bring difficulty to roll change work.Therefore, backing roll change be one not only consuming time but also consume the task of power, not only make operating personal increase workload, also have certain potential safety hazard.

The utility model content

The purpose of this utility model is to provide a kind of travelling crane hook angle positioning device, and this angle positioning device can make suspension hook centering location exactly in the handling process, its accuracy of positioning height, and simple in structure, easy to use.

The utility model is achieved in that

A kind of travelling crane hook angle positioning device, comprise flange, framework, connecting pin and other plate, flange is fixed on the suspension hook hook neck, framework inside is step-like, the hook neck is connected with the framework inner shaft by surface bearing, the framework left and right sides is provided with other plate, has through hole on the other plate, and the through hole that connecting pin passes on the other plate links to each other other plate with framework; Described angle positioning device also comprises angle orientation mechanism, and described framework leading flank has mounting groove, and the flange outer diameter end has and the corresponding cotter way in mounting groove position, and angle orientation mechanism is installed in mounting groove and the cotter way; Described angle orientation mechanism comprises locating dowel pin and pin baffle plate, and described locating dowel pin is the L type, and an end of L type locating dowel pin is hinged in the mounting groove on the framework, and the other end inserts in the cotter way on the flange, and the pin baffle plate is arranged on the outside of locating dowel pin and blocks locating dowel pin.

Described locating dowel pin is a L type eccentric pin, and the line of centers of described L type eccentric pin first arm and the line of centers of second arm be not in same plane.

The fixed end of described pin baffle plate is coupling on framework, and the free end of pin baffle plate has the primary importance of blocking locating dowel pin and the second place of decontroling locating dowel pin, and described framework is provided with the spacing fixture block that matches with pin baffle plate free end primary importance.

The utility model is to have increased angle orientation mechanism at existing travelling crane hook hook neck place, this angle orientation mechanism mainly is made up of L type locating dowel pin, pin baffle plate and spacing fixture block, one end of L type locating dowel pin is hinged on the framework, and can be that fulcrum is rotated with this hinge-point.When needs position travelling crane hook, only need rotation L type locating dowel pin, get final product in the flange cotter way that the other end inserts and the hook neck is affixed with L type locating dowel pin, and locating dowel pin is carried out locking position, can prevent effectively that locating dowel pin from dropping out cotter way by pin baffle plate and spacing fixture block.The utility model can make suspension hook centering location exactly in the handling process, its accuracy of positioning height, and simple in structure, easy to use.

Description of drawings

Fig. 1 is the structural representation of the utility model travelling crane hook angle positioning device;

Fig. 2 is the left view of Fig. 1;

Fig. 3 is the structural representation of locating dowel pin among Fig. 1;

Fig. 4 is the right elevation of Fig. 3;

Fig. 5 is another structural representation of the utility model travelling crane hook angle positioning device;

Fig. 6 is the structural representation of eccentric pin among Fig. 5;

Fig. 7 is the right elevation of Fig. 6;

Fig. 8 is the perspective view of eccentric pin.

Among the figure: 1 hook neck, 2 flanges, 3 frameworks, 4 connecting pins, 5 other plates, 6 locating dowel pins, 61 first arms, 62 second arms, 7 pin baffle plates, 8 spacing fixture blocks, 9 fastening screws.

The specific embodiment

The utility model is described in further detail below in conjunction with the drawings and specific embodiments.

Referring to Fig. 1 and Fig. 2, a kind of travelling crane hook angle positioning device comprises flange 2, framework 3, connecting pin 4, other plate 5 and angle orientation mechanism, and wherein angle orientation mechanism comprises locating dowel pin 6, pin baffle plate 7, spacing fixture block 8 and fastening screw 9.

Flange 2 is fixed on the suspension hook hook neck 1, and hook neck 1 and flange 2 do not have relative displacement or rotation between the two for flush fit is connected, so hook neck 1 can be regarded the integral body that does not have relative motion as with flange 2.

Framework 3 inside are step-like, and hook neck 1 is connected with framework 3 inner shafts by surface bearing, so hook neck 1 can horizontally rotate motion with respect to framework 3 around axis with flange 2.Framework 3 left and right sides are provided with other plate 5, have through hole on the other plate 5, and the through hole that connecting pin 4 passes on the other plate 5 links to each other other plate 5 with framework 3.Framework 3 leading flanks have mounting groove, and flange 2 external diameter ends have and the corresponding cotter way in mounting groove position, the determining positions of cotter way the constant bearing of suspension hook, angle orientation mechanism is installed in mounting groove and the cotter way.

Referring to Fig. 3 and Fig. 4, locating dowel pin 6 is the L type, and locating dowel pin 6 the first half have through hole, and the through hole that fastening screw 9 passes locating dowel pin 6 the first half is installed in locating dowel pin 6 in the mounting groove on the framework 3, and locating dowel pin 6 can be around fastening screw 9 rotations.In the cotter way on locating dowel pin 6 the latter halfs insertion flange 2, stop hook neck 1 and framework 3 counterrotating purposes thereby reach.

Pin baffle plate 7 is arranged on the outside of locating dowel pin 6, is used for blocking locating dowel pin 6.The fixed end of pin baffle plate 7 is coupling on framework 3, and the free end of pin baffle plate 7 has the primary importance of blocking locating dowel pin 6 and the second place of decontroling locating dowel pin 6, and framework 3 is provided with the spacing fixture block 8 that matches with pin baffle plate 7 free end primary importances.The free end of pin baffle plate 7 can be around the fixed end rotation of pin baffle plate 7.After locating dowel pin 6 inserts in the cotter way, put down as long as will sell baffle plate 7 rotations, can the position of locating dowel pin 6 be locked, prevent that effectively locating dowel pin 6 from dropping out cotter way.

Because L type locating dowel pin 6 in use, its the latter half is subjected to bigger application force, deform easily or wear and tear, therefore L type locating dowel pin 6 can be improved to L type eccentric pin 6, the line of centers that is the line of centers of L type eccentric pin 6 first arms 61 and second arm 62 is not in same plane, to strengthen its abrasion resistance, referring to Fig. 5 to Fig. 8.In addition, in case locating dowel pin 6 deforms or when wearing and tearing, only need change a locating dowel pin 6 and get final product.

The utility model can make suspension hook centering location exactly in the handling process, its accuracy of positioning height, and simple in structure, easy to use.

Claims

1. travelling crane hook angle positioning device, comprise flange, framework, connecting pin and other plate, flange is fixed on the suspension hook hook neck, framework inside is step-like, the hook neck is connected with the framework inner shaft by surface bearing, the framework left and right sides is provided with other plate, has through hole on the other plate, and the through hole that connecting pin passes on the other plate links to each other other plate with framework;

It is characterized in that: described angle positioning device also comprises angle orientation mechanism, and described framework leading flank has mounting groove, and the flange outer diameter end has and the corresponding cotter way in mounting groove position, and angle orientation mechanism is installed in mounting groove and the cotter way;

Described angle orientation mechanism comprises locating dowel pin and pin baffle plate, and described locating dowel pin is the L type, and an end of L type locating dowel pin is hinged in the mounting groove on the framework, and the other end inserts in the cotter way on the flange, and the pin baffle plate is arranged on the outside of locating dowel pin and blocks locating dowel pin.

2. travelling crane hook angle positioning device according to claim 1 is characterized in that: described locating dowel pin is a L type eccentric pin, and the line of centers of described L type eccentric pin first arm and the line of centers of second arm be not in same plane.

3. travelling crane hook angle positioning device according to claim 1 and 2, it is characterized in that: the fixed end of described pin baffle plate is coupling on framework, the free end of pin baffle plate has the primary importance of blocking locating dowel pin and the second place of decontroling locating dowel pin, and described framework is provided with the spacing fixture block that matches with pin baffle plate free end primary importance.