CN215711246U - Column cantilever crane - Google Patents

Abstract

The utility model discloses a column type cantilever crane, which relates to the related technical field of cantilever cranes and comprises a supporting seat, a column, a fixed column, an auxiliary mechanism and a suspension arm, wherein the column is arranged above the supporting seat, the fixed column is arranged above the column, the auxiliary mechanism is arranged above the suspension arm, the lower surface of the supporting seat is fixedly connected with a universal wheel, and the upper surface of the supporting seat is detachably connected with the column at a position close to the middle position, the stability of electric block on the davit has been improved.

Description

Column cantilever crane

Technical Field

The utility model relates to the technical field of cantilever cranes, in particular to a column type cantilever crane.

Background

The cantilever crane belongs to an industrial part and belongs to a light working strength crane. The electric hoist is composed of an upright post, a rotary arm rotary driving device and an electric hoist, wherein the lower end of the upright post is fixed on a concrete foundation through a foundation bolt, a cycloid pin gear speed reducer drives a cantilever to rotate, and the electric hoist moves linearly left and right on a cantilever I-shaped steel and lifts a heavy object. The crane jib is a hollow steel structure, and has the advantages of light dead weight, large span, large lifting capacity, economy and durability. The built-in walking mechanism adopts a special engineering plastic walking wheel with a rolling bearing, has small friction force and is light and fast to walk; the structure size is small, and the lifting hook stroke is particularly favorably improved.

The prior art has the following problems: when the existing cantilever crane is used, the stand column is generally welded and fixed, the height between the suspension arm and the ground is not convenient to adjust, the structure is single, the practicability of the cantilever crane is reduced, the use requirement of an operator cannot be met, and when the cantilever crane uses an electric hoist to hook a heavy object, the phenomenon that the suspension arm falls off easily can occur because the electric hoist is fixed and unstable on the suspension arm, so that the damage to an object is caused, and the use is not facilitated.

SUMMERY OF THE UTILITY MODEL

For solving above-mentioned technical problem, a column cantilever crane is provided, current cantilever crane that provides in this technical scheme has been solved in the above-mentioned background art is when using, the stand generally is welded fastening, be not convenient for adjust the height between davit and the ground, single structure, thereby the practicality of cantilever crane has been reduced, can not satisfy operating personnel's user demand, and cantilever crane is when using electric block couple heavy object, probably because electric block is fixed unstable on the davit, the phenomenon that drops appears easily, thereby cause the damage of article, be unfavorable for the problem of using.

In order to achieve the above purposes, the technical scheme adopted by the utility model is as follows:

a column type cantilever crane comprises a supporting seat, a column, a fixing column, an auxiliary mechanism and a suspension arm, wherein the column is arranged above the supporting seat, the fixing column is arranged above the column, the auxiliary mechanism is arranged above the suspension arm, a universal wheel is fixedly connected to the lower surface of the supporting seat, the upper surface of the supporting seat near the middle position is detachably connected with the column, a push rod is welded on the upper surface of the supporting seat far away from the column, a fixing frame is fixedly connected to the front end of the supporting seat, a supporting arm is rotatably connected to the inner side of the fixing frame, a telescopic cylinder is fixedly mounted on the lower surface of the supporting arm, a supporting chassis is fixedly connected to the output end of the telescopic cylinder, the top end of the column near the middle position is slidably connected with the fixing column, one end of the fixing column penetrates through the column, a driving motor is fixedly mounted on the upper surface of the fixing column, the surface of the driving motor is fixedly connected with a suspension arm, the supporting seat is rotatably connected with the supporting arm through a fixing frame, and the supporting arm is fixedly connected with the supporting chassis through a telescopic cylinder.

Preferably, the inside bottom fixed mounting of stand has the lift cylinder, the output fixedly connected with screw rod of lift cylinder, lift cylinder fixedly connected with slide bar is kept away from to the inside bottom of stand, the surperficial sliding connection of slide bar has the fixed plate, the upper surface of fixed plate is close to intermediate position department and fixed column fixed connection.

Preferably, the surface of the screw rod is in threaded connection with the fixed plate, one end of the screw rod is movably connected with the top end of the inside of the upright column, the fixed column is in sliding connection with the sliding rod through the fixed plate, and the screw rod is in threaded connection with the fixed column through the fixed plate.

Preferably, the surperficial sliding connection of davit has electric block, the last skin weld of davit has the stopper, electric block's fixed surface is connected with the mount, the spout has been seted up on the surface of stopper, the inside sliding connection of spout has the pulley.

Preferably, one side of the pulley is fixedly connected with the fixing frame, the limiting block is connected with the pulley in a sliding mode through the sliding groove, and the fixing frame is connected with the sliding groove in a sliding mode through the pulley.

Compared with the prior art, the utility model provides a column type cantilever crane, which has the following beneficial effects:

the electric hoist is provided with the auxiliary mechanism, the lifting cylinder and the fixed column, the fixed column is stretched in the upright column through the lifting cylinder, so that the length between the fixed column and the upright column is adjusted, the height between the suspension arm and the ground is adjusted through stretching of the fixed column, the electric hoist can be used according to the requirements of operators, when the electric hoist is used, the electric hoist can drive the pulley to slide in the sliding groove through the fixed frame in the moving process through the arrangement of the auxiliary mechanism, the stability of the electric hoist on the suspension arm is improved, the damage to an object caused by the falling-off phenomenon is avoided, the practicability of the cantilever crane is improved, the production requirements are met, and the operation is simple.

Drawings

Fig. 1 is a schematic view of a three-dimensional structure of a column type cantilever crane according to the present invention;

FIG. 2 is a schematic perspective view of an auxiliary mechanism according to the present invention;

FIG. 3 is a schematic view of the internal structure of the column according to the present invention;

the reference numbers in the figures are:

1. a supporting seat; 2. a column; 3. a push rod; 4. fixing a column; 5. a support chassis; 6. a drive motor; 7. a telescopic cylinder; 8. a suspension arm; 9. an electric hoist; 10. an auxiliary mechanism; 11. a universal wheel; 12. a fixed frame; 13. a support arm; 14. a chute; 15. a limiting block; 16. a fixed mount; 17. a pulley; 18. a screw; 19. a slide bar; 20. a fixing plate; 21. and a lifting cylinder.

Detailed Description

The following description is presented to disclose the utility model so as to enable any person skilled in the art to practice the utility model. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.

Referring to fig. 1-3, a column cantilever crane comprises a supporting seat 1, a column 2, a fixing column 4, an auxiliary mechanism 10 and a suspension arm 8, wherein the column 2 is arranged above the supporting seat 1, the fixing column 4 is arranged above the column 2, the auxiliary mechanism 10 is arranged above the suspension arm 8, a universal wheel 11 is fixedly connected to the lower surface of the supporting seat 1, the upper surface of the supporting seat 1 is detachably connected to the column 2 at a position close to the middle position, a push rod 3 is welded to the upper surface of the supporting seat 1 far away from the column 2, a fixing frame 12 is fixedly connected to the front end of the supporting seat 1, a supporting arm 13 is rotatably connected to the inner side of the fixing frame 12, a telescopic cylinder 7 is fixedly mounted on the lower surface of the supporting arm 13, a supporting chassis 5 is fixedly connected to the output end of the telescopic cylinder 7, the position close to the middle position of the top end of the column 2 is slidably connected to the fixing column 4, and one end of the fixing column 4 penetrates through the column 2, the upper surface of the fixed column 4 is fixedly provided with a driving motor 6, the output end of the driving motor 6 is fixedly connected with the fixed column 4, the driving motor 6 can drive the suspension arm 8 to rotate, so that the direction of the suspension arm 8 is adjusted, the surface of the driving motor 6 is fixedly connected with the suspension arm 8, the supporting seat 1 is rotatably connected with the supporting arm 13 through a fixed frame 12, and the supporting arm 13 is fixedly connected with the supporting chassis 5 through a telescopic cylinder 7.

The inside bottom fixed mounting of stand 2 has lift cylinder 21, lift cylinder 21's output fixedly connected with screw rod 18, lift cylinder 21 fixedly connected with slide bar 19 is kept away from to the inside bottom of stand 2, slide bar 19's surperficial sliding connection has fixed plate 20, the upper surface of fixed plate 20 is close to intermediate position department and fixed column 4 fixed connection, the surface and the fixed plate 20 threaded connection of screw rod 18, the one end of screw rod 18 and the inside top swing joint of stand 2, fixed column 4 passes through fixed plate 20 and slide bar 19 sliding connection, screw rod 18 passes through fixed plate 20 and fixed column 4 threaded connection.

Davit 8's surperficial sliding connection has electric block 9, davit 8's upper surface welding has stopper 15, electric block 9's fixed surface is connected with mount 16, spout 14 has been seted up on stopper 15's surface, spout 14's inside sliding connection has pulley 17, one side and mount 16 fixed connection of pulley 17, stopper 15 passes through spout 14 and pulley 17 sliding connection, mount 16 passes through pulley 17 and 14 sliding connection driving motor 6 of spout, electric block 9, telescopic cylinder 7 and lift cylinder 21 all are connected through external power source and switch, the demand of device at the during operation power supply volume has been ensured.

When the utility model is used, the cantilever crane is moved to a corresponding position, the supporting arms 13 at two sides of the supporting seat 1 are opened, the telescopic cylinder 7 is started to work through an external switch, the output end of the telescopic cylinder 7 drives the supporting chassis 5 to vertically move downwards, so that the bottom end of the supporting chassis 5 is contacted with the ground, the contact area between the supporting seat 1 and the ground is increased, the friction force between the cantilever crane and the ground is increased, the stability of the cantilever crane in use is improved, the length between the fixed column 4 and the upright column 2 is adjusted according to the actual use height, the output end of the lifting cylinder 21 drives the fixed plate 20 to vertically move upwards or downwards along the sliding rod 19 through the screw rod 18 by starting the lifting cylinder 21 to work, so that the fixed column 4 is driven to stretch out and draw back inside the upright column 2, the adjustment of the length between the fixed column 4 and the upright column 2 is realized, and finally the operation is started through starting the electric hoist 9, the electric hoist 9 drives the pulley 17 to slide in the sliding groove 14 through the fixed frame 16 in the moving process, and the stability of the electric hoist 9 on the suspension arm 8 is improved through the auxiliary mechanism 10.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the utility model, but that various changes and modifications may be made without departing from the spirit and scope of the utility model, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (5)

1. A column cantilever crane is characterized by comprising a supporting seat (1), a column (2), a fixing column (4), an auxiliary mechanism (10) and a suspension arm (8), wherein the column (2) is arranged above the supporting seat (1), the fixing column (4) is arranged above the column (2), the auxiliary mechanism (10) is arranged above the suspension arm (8), a universal wheel (11) is fixedly connected to the lower surface of the supporting seat (1), the upper surface of the supporting seat (1) close to the middle position is detachably connected with the column (2), a push rod (3) is welded on the upper surface of the supporting seat (1) far away from the column (2), a fixed frame (12) is fixedly connected to the front end of the supporting seat (1), a supporting arm (13) is rotatably connected to the inner side of the fixed frame (12), and a telescopic cylinder (7) is fixedly mounted on the lower surface of the supporting arm (13), the output end fixedly connected with of telescopic cylinder (7) supports chassis (5), the top of stand (2) is close to intermediate position department and fixed column (4) sliding connection, and the one end of fixed column (4) runs through in stand (2), the last fixed surface of fixed column (4) installs driving motor (6), the fixed surface of driving motor (6) is connected with davit (8), supporting seat (1) rotates with support arm (13) through fixed frame (12) and is connected, support arm (13) and support chassis (5) are through telescopic cylinder (7) fixed connection.

2. A column cantilever crane according to claim 1, wherein: the utility model discloses a lifting cylinder, including stand (2), output fixedly connected with screw rod (18) of lifting cylinder (21), lifting cylinder (21) fixedly connected with slide bar (19) are kept away from to the inside bottom fixed mounting of stand (2), the surface sliding connection of slide bar (19) has fixed plate (20), the upper surface of fixed plate (20) is close to intermediate position department and fixed column (4) fixed connection.

3. A column cantilever crane according to claim 2, wherein: the surface of the screw rod (18) is in threaded connection with the fixing plate (20), one end of the screw rod (18) is movably connected with the top end of the inside of the upright post (2), the fixing post (4) is in sliding connection with the sliding rod (19) through the fixing plate (20), and the screw rod (18) is in threaded connection with the fixing post (4) through the fixing plate (20).

4. A column cantilever crane according to claim 1, wherein: the suspension arm is characterized in that the surface of the suspension arm (8) is connected with an electric hoist (9) in a sliding mode, the upper surface of the suspension arm (8) is welded with a limiting block (15), the surface of the electric hoist (9) is fixedly connected with a fixing frame (16), a sliding groove (14) is formed in the surface of the limiting block (15), and a pulley (17) is connected to the inside of the sliding groove (14) in a sliding mode.

5. A column cantilever crane according to claim 4, wherein: one side and mount (16) fixed connection of pulley (17), stopper (15) pass through spout (14) and pulley (17) sliding connection, mount (16) pass through pulley (17) and spout (14) sliding connection.

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