CN2304643Y

CN2304643Y - Automatic gantry for craning containers

Info

Publication number: CN2304643Y
Application number: CN 97247314
Authority: CN
Inventors: 翁耀根
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-09-19
Filing date: 1997-09-19
Publication date: 1999-01-20
Anticipated expiration: 2007-09-19

Abstract

The utility model relates to a hoisting machinery, particularly a container portal crane with a rotary lock device. The utility model comprises a portal frame structure, a carriage and a container spreader. The lower part of the portal frame structure is provided with a cart running mechanism; a rotary lock mechanism and a pushing mechanism which can drive the rotary lock mechanism are arranged on the container spreader; the rotary lock mechanism and the pushing mechanism can match with a slinging hole which is arranged on a container and are connected with a pulley wheel for hoisting wire cables.

Description

The gantry container crane that can lift automatically

The utility model relates to elevator machinery, specifically a kind of gantry container crane that has rotary-locking device.

Existing freight container is when handling, utilize the mechanism that hoists to drive the single reel be tied with steel rope, realize the rise and fall of suspension hook, by below suspension hook, hanging an easy container spreader as load-engaging device, thereby realize the lifting and the loading and unloading of freight container, by vertical, the side travel of large and small car, realize carrying again to freight container.The defective of this mode be when handling easily because of rocking appears in inertia, make the handling process utmost point not steady; During container hanging, except that a driver, also need the auxiliary suspender of two to four Si Suo workers location, not only taken manpower but also time-consuming.

The purpose of this utility model is a kind of gantry container crane that can lift automatically of design, with overcome operation, problem such as not steady when moving.

Its main technical schemes comprises portal-framed structure, dolly and container spreader, traveling mechanism of the larger traveller is arranged at the bottom at portal-framed structure, having on the container spreader and can revolve the pushing mechanism of latch mechanism with the hole cooperates revolve latch mechanism and drive this of hanging on the freight container, and the pulley that connects the lifting steel rope, in revolving latch mechanism, the middle part of revolving lock shaft utilizes thrust baring to be installed on the support of casing, revolve the fastening tapered end that revolves in lower end of lock shaft, this horizontal shape of revolving tapered end can similar Long Circle or cam or eccentric wheel, revolve the fastening fork in top of lock shaft, the outer end of this fork connects with pushing mechanism, in pushing mechanism, the electronic cylinder that is installed on the container spreader has expansion link, the outer end articulated linkage of expansion link, the other end of connecting rod is connected on the shifting bar, and the end of shifting bar is hinged with the fork that revolves in the latch mechanism, pushing mechanism has two, lays respectively at the two ends of container spreader.Revolving latch mechanism has 4, lays respectively at the two ends of each pushing mechanism.Revolve between thrust baring on the lock shaft and support the bearing lower cover is arranged, between thrust baring and fork, bearing upper cover is arranged, and it is fastened on the support with the jam nut that revolves lock shaft upper end, the base plate of casing is passed in the bottom of revolving lock shaft, in revolving latch mechanism, side in casing have one can be in support and base plate on, mobile down push rod, the upper end of push rod can contact with the lifting travel switch that is installed in wall box, the flange that contacts with box bottom is arranged at the bottom that is positioned at casing on push rod, between support and this flange the spring that is enclosed within outside the push rod is arranged, box bottom is stretched out in the lower end of push rod; Uniform two groups of pulleys on container spreader, every group has two pulleys, two groups of lifting mechanisms correspondingly are installed on the dolly, every group of lifting mechanism constitutes by hoisting drum, compensating pulley and hoist rope anchor fitting, one end of hoist rope is connected on the anchor fitting, and the other end connects with hoisting drum after walking around pulley, compensating pulley, pulley successively.

The utility model has the advantages that owing on container spreader, installed 4 and revolve latch mechanism and two 4 of driven in synchronism of cover are revolved the pushing mechanism of latch mechanism action, when operation, only need 1 people just can finish the handling process of freight container, saved manpower and financial resources.Next makes whole handling process more steady after adopting the mode of 4 handlings to replace original single-point handling mode.

Fig. 1 is the transfer crane scheme drawing.

Fig. 2 is the container spreader constructional drawing.

Fig. 3 is the birds-eye view of Fig. 1.

Fig. 4 is for revolving the lock machine composition.

Fig. 5 is the B-B view of Fig. 4.

Fig. 7 is pushing mechanism figure.

Fig. 8 is the lifting machine composition.

As shown in the figure: portal-framed structure 1 is made of two root posts and 1 crossbeam, column utilizes traveling mechanism of the larger traveller 6 and is installed in ground track and contacts, and under the driving of traveling mechanism of the larger traveller, orbit, the dolly 3 that can move along crossbeam is arranged on the crossbeam, utilize hoist rope 33 to connect container spreader 4 under the dolly, also be connected with driver's cab 5 on the dolly 3, be connected with electric control system 2 on the crossbeam, the square frame shown in the long and two-short dash line is a freight container 7 below the container spreader 4, the end position when the structure shown in two long and two-short dash linees at crossbeam two ends is dolly handling freight container on crossbeam.

Latch mechanism 8 is revolved in four jiaos of 4 of installations at container spreader 4, and install two groups respectively at the two ends of suspender 4 and be used for the pushing mechanism that driven in synchronism is revolved latch mechanism, be convenient to revolve the guide piece 10 of the alignment of a hole position on latch mechanism and the freight container in the installation of the both sides of suspender 4, cable winder 12 is arranged, also uniform 4 pulleys 13 on suspender at the suspender middle part.

In pushing mechanism, the electronic cylinder 17 that is installed on the suspender 4 is connected with expansion link 16, the movable end of expansion link 16 is hinged with the connecting rod 9 that is connected in shifting bar 18 middle parts, and shifting bar 18 is installed on the suspender 4 movably, and its two ends are hinged with two forks 19 that revolve in the latch mechanism 8 respectively.

In revolving latch mechanism 8, casing 20 is installed on the container spreader 4, support 26 is arranged in the casing, on, following two ends are cover plate and base plate, the middle part of revolving lock shaft 28 utilize thrust baring 25 and on,

lower cover

22,24 connect with support 26, above the bearing upper cover 22 is fork 19, jam nut 21 is fastened on fork and thrust baring on the support, make that to revolve lock shaft rotatable but can not go up, move down, the lower end of revolving lock shaft 28 is the oblong tapered end 30 that revolves, and during use, revolving that tapered end stretches on the freight container with the decline of suspender is oblong hanging in the hole equally, half-twist under the driving of pushing mechanism just can tangle freight container again.

Side in casing 20 has a push rod 29 that passes support 26 and base plate respectively, flange is arranged at the bottom that is positioned at casing at push rod 29, spring 27 is arranged outside the push rod between support 26 and flange, the upper end of push rod can contact with the lifting travel switch 23 that is installed in the casing side, when revolve tapered end 28 insert freight containers 7 hang the hole time, push rod is risen, open travel switch 23, can under spring 27 effects, push rod be resetted again then.

Fig. 6 is the A-A view after omitting post rod mechanism among Fig. 4 and lifting by crane travel switch 23.Fig. 4 is the C-C view behind the omission handling travel switch 31 among Fig. 6.Handling travel switch 31 is installed in the side of

casing

20, and 36 among Fig. 6 is block.

4 pulleys 13 are installed in equably on the container spreader 4 and constitute two groups among Fig. 8, two groups of lifting mechanisms are installed on dolly 3 accordingly, hoist rope 33 and anchor fitting 35 thereof are arranged respectively in every group of lifting mechanism, compensating pulley 34 and hoisting drum 32, one end of hoist rope 33 is fixed on the device 35, and the other end is walked around pulley 13, compensating pulley 34 and pulley 13 backs successively and connected with hoisting drum.Lifting mechanism and driver train thereof have a detailed description in another part file that the applicant applies for simultaneously.

During work, the driver starts wheeling mechanism and traveling mechanism of the larger traveller by electric control system in driver's cab, make dolly and whole hoisting crane run to the container position that will lift, and container spreader is positioned at directly over the freight container, start lifting mechanism then, suspender is dropped to above the freight container, pass through guide piece, make and revolve lock shaft and insert hanging in the hole of freight container, push rod makes the action of lifting travel switch simultaneously, starts pushing mechanism then, allows fork drive and revolves the lock shaft rotation, at this moment, safety catch makes the action of handling travel switch.Starting lifting mechanism immediately makes freight container rise to certain altitude.And the lifting travel switch resets under the effect of spring, starts wheeling mechanism and traveling mechanism of the larger traveller afterwards, container crane to needed position.

Then, start lifting mechanism and big wheeling mechanism, put down freight container, push rod makes the action of lifting travel switch, starts pushing mechanism immediately, fork is driven revolve the lock shaft contrarotation, afterwards, start lifting mechanism, the suspender that hoists makes it break away from freight container, simultaneously, lifting travel switch and handling travel switch reset, and so far, have finished a working cycle process of handling freight container.

Claims

1, the gantry container crane that can lift automatically, comprise portal-framed structure (1), dolly (3) and container spreader (4), traveling mechanism of the larger traveller (6) is arranged in the bottom of portal-framed structure, it is characterized in that have on the container spreader (4) can with freight container on hang that the hole cooperates revolve latch mechanism (8) and drive this and revolve the pushing mechanism of latch mechanism, and the pulley (13) that connects hoisting wirerope.

2, hoisting crane according to claim 1, it is characterized in that in revolving latch mechanism (8), the middle part of revolving lock shaft (28) utilizes thrust baring (25) to be installed on the support (26) of casing (20), revolve the fastening tapered end (30) that revolves in lower end of lock shaft, the fastening fork in top (19), the outer end of this fork connects with pushing mechanism.

3, hoisting crane according to claim 1, it is characterized in that in pushing mechanism, the electronic cylinder (17) that is installed on the container spreader (4) has expansion link (16), the outer end articulated linkage (9) of this expansion link, connecting rod connects shifting bar (18), and the end of shifting bar (18) is hinged with the fork (19) that revolves in the latch mechanism (8).

4, according to claim 1,2 described hoisting cranes, it is characterized in that bearing lower cover (24) being arranged revolving between thrust baring (25) on the lock shaft (28) and support (26), between thrust baring (25) and the fork (19) bearing upper cover (22) is arranged, and with the jam nut (21) that revolves lock shaft (28) upper end it is fastened on the support (26), the base plate of casing (20) is passed in the bottom of revolving lock shaft (28).

5,, it is characterized in that the level of revolving tapered end (30) is shaped as approximate Long Circle or cam or eccentric wheel according to claim 1,2 described hoisting cranes.

6, according to claim 1,2 described hoisting cranes, it is characterized in that in revolving latch mechanism, side in casing (20) have 1 can be in support (26) and base plate upper and lower mobile push rod (29), the upper end of push rod can contact with the lifting travel switch that is installed in wall box, the flange that can contact with box bottom is arranged at the bottom that is positioned at casing on push rod (29), the spring (27) that is enclosed within outside the push rod (29) is arranged between support (26) and this flange, and box bottom is stretched out in the lower end of push rod (29).

7, hoisting crane according to claim 1, it is characterized in that at the last uniform two groups of pulleys of container spreader (4) (13), every group has two pulleys, two groups of lifting mechanisms correspondingly are installed on dolly (3), every group of lifting mechanism constitutes by hoisting drum (32), compensating pulley (34) and hoist rope anchor fitting (35), one end of hoist rope (33) is connected on the anchor fitting (35), and the other end connects with hoisting drum (32) after walking around pulley (13), compensating pulley (34), pulley (13) successively.

8, hoisting crane according to claim 1 is characterized in that pushing mechanism has two, lays respectively at the two ends of container spreader (4), and the shifting bar end in each pushing mechanism connects the fork that revolves in the latch mechanism respectively.