CN214828597U

CN214828597U - Small-tonnage crane

Info

Publication number: CN214828597U
Application number: CN202122516417.1U
Authority: CN
Inventors: 张建鑫; 张志伟; 杨自乾; 张立胜
Original assignee: Henan Lugang Crane Group Co ltd
Current assignee: Henan Lugang Crane Group Co ltd
Priority date: 2021-10-19
Filing date: 2021-10-19
Publication date: 2021-11-23
Anticipated expiration: 2031-10-19

Abstract

The utility model discloses a light-tonnage hoist, which comprises a housin, the bottom outer wall of casing is connected with the base through gyration support bearing, one side outer wall of casing has the cantilever through bolted connection, the inside activity of cantilever is pegged graft and is had the extension arm, the inner wall welding of cantilever has the baffle, the bottom inner wall of cantilever has the motor through bolted connection, there is the screw rod inside of extension arm through threaded connection, the one end of screw rod runs through the output shaft of baffle and motor and passes through splined connection, the top outer wall welding of casing has two extension boards, be connected with the reel through the bearing between two extension boards, the outside winding of reel has wire rope, wire rope keeps away from the one end of reel and has the couple through bolted connection, the top of extension arm passes through the pulley with wire rope and is connected. The utility model discloses utilize the motor to drive the screw rod and rotate for the extension arm stretches out from the inside of cantilever, and then makes the hoist carry out the scope of lifting by crane to the heavy object and obtain increasing, makes the application scope of hoist wider.

Description

Small-tonnage crane

Technical Field

The utility model relates to a hoist technical field especially relates to a small-tonnage hoist.

Background

The small-tonnage crane is common hoisting equipment in life, and can be used for conveniently transferring heavy objects to a high place, so that a large amount of manpower for lifting the heavy objects is saved.

The utility model of Chinese patent application No. 202021792024.2 discloses a small-tonnage over-rail crane relating to the technical field of hoisting equipment, which comprises a bridge crane body, an electric hoist, a traveling track, a driving wheel set and a driven wheel set; the bridge crane comprises a bridge crane body cart, a traveling rail, a driving wheel set and a driven wheel set, wherein the length direction of the traveling rail is consistent with the length direction of the bridge crane body cart; a movable frame is arranged below the walking track, and one end of the top of the movable frame is correspondingly hinged with the bottom of the main motor car wheel set.

The small-tonnage crane in the prior art has a narrow application range due to a small lifting range of the crane for heavy objects, and the crane cannot be used safely due to the phenomenon that the heavy objects slide down when the crane lifts the heavy objects. Therefore, it is desirable to design a small tonnage crane to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects of narrow application range and unsafe use existing in the prior art and providing a small-tonnage crane.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a light-tonnage hoist, includes the casing, the bottom outer wall of casing is connected with the base through gyration support bearing, there is the cantilever one side outer wall of casing through bolted connection, the inside activity of cantilever is pegged graft and is had the extension arm, the inner wall welding of cantilever has the baffle, the bottom inner wall of cantilever has the motor through bolted connection, there is the screw rod inside through threaded connection of extension arm, the one end of screw rod runs through the output shaft of baffle and motor and passes through splined connection, the top outer wall welding of casing has two extension boards, two be connected with the reel through the bearing between the extension board, the outside winding of reel has wire rope, wire rope keeps away from the one end of reel and has the couple through bolted connection, the top and the wire rope of extension arm pass through the pulley connection.

The key concept of the technical scheme is as follows: utilize the motor to drive the screw rod and rotate for the extension arm stretches out from the inside of cantilever, and then makes the hoist carry out the scope of lifting by crane to the heavy object and obtain increasing, makes the application scope of hoist wider.

Further, the welding of the top outer wall of casing has the oil tank, be connected with the worm through the bearing between the both sides inner wall of oil tank, the welding of oil tank is run through to the connecting axle one end of reel has the worm wheel, the worm wheel meshes with the worm.

Furthermore, the outer wall of one side of the oil tank is connected with a driving motor through a bolt, and one end of an output shaft of the driving motor is connected with the worm through a spline.

Furthermore, the outer wall welding of the top of oil tank has the oil inlet mouth, there is the oil head inside oil inlet mouth through threaded connection.

Furthermore, the top outer wall of the extension arm is provided with a limiting groove, the top outer wall of the cantilever is inserted with a limiting pin, and the bottom end of the limiting pin extends to the inside of the limiting groove.

Further, the outer wall welding of the both sides of base has the mounting panel, the inside of casing is provided with evenly distributed's balancing weight.

Further, the inside of base is provided with the lifter plate, there is evenly distributed's electric telescopic handle through bolted connection between the top inner wall of lifter plate and base, there is evenly distributed's truckle the bottom outer wall of lifter plate through bolted connection.

The utility model has the advantages that:

1. through extension arm, screw rod and the motor that sets up, utilize the motor to drive the screw rod and rotate for the extension arm stretches out from the inside of cantilever, and then makes the hoist carry out the scope that lifts by crane to the heavy object and obtain increasing, makes the application scope of hoist wider.

2. Through the worm wheel and the worm that set up, utilize driving motor to drive the worm and rotate for when the worm drives worm wheel and reel and rotates, can utilize worm wheel and worm auto-lock principle to prevent the reel reverse rotation, and then prevent that the condition of tenesmus from taking place when lifting by crane, and then make lifting by crane of heavy object safer.

3. Through electric telescopic handle, truckle and the base that sets up, utilize electric telescopic handle to drive the lifter plate and move and then make the truckle of its bottom contact with ground for what the hoist can be convenient removes, and then make the use of hoist more convenient.

4. Through the spacing groove and the spacing pin that set up, utilize the spacing pin to cooperate with the spacing groove for the extension arm can not take place to break away from with the cantilever when moving, and then has increased the reliability when the hoist uses.

Drawings

FIG. 1 is a schematic view of the overall structure of a small-tonnage crane according to the present invention;

FIG. 2 is a schematic view of the internal structure of a small-tonnage crane according to the present invention;

fig. 3 is a schematic view of a cantilever structure of a small-tonnage crane according to the present invention.

In the figure: the device comprises a shell 1, a support plate 2, a winding drum 3, an oil tank 4, a cantilever 5, a steel wire rope 6, a hook 7, an extension arm 8, a worm wheel 9, a worm 10, a driving motor 11, an oil inlet nozzle 12, an oil seal head 13, a lifting plate 14, a caster 15, an electric telescopic rod 16, a base 17, a screw rod 18, a partition plate 19, a motor 20, a mounting plate 21, a limiting groove 22, a limiting pin 23 and a balancing weight 24.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 3, a small-tonnage crane includes a housing 1, a base 17 is connected to the outer wall of the bottom of the housing 1 through a rotary support bearing, a cantilever 5 is connected to the outer wall of one side of the housing 1 through a bolt, an extension arm 8 is movably inserted into the cantilever 5, a partition plate 19 is welded to the inner wall of the cantilever 5, a motor 20 is connected to the inner wall of the bottom of the cantilever 5 through a bolt, the model of the motor 20 is CH-28, a screw 18 is connected to the inside of the extension arm 8 through a thread, one end of the screw 18 penetrates through the partition plate 19 and is connected to an output shaft of the motor 20 through a spline, the screw 18 is driven to rotate by the motor 20, so that the extension arm 8 extends out of the inside of the cantilever 5, two support plates 2 are welded to the outer wall of the top of the housing 1, a winding drum 3 is connected between the two support plates 2 through a bearing, and a steel wire rope 6 is wound around the outside of the winding drum 3, utilize the rotation of reel 3 to carry out the rolling to wire rope 6, wire rope 6 is kept away from the one end of reel 3 and is had couple 7 through bolted connection, and extension arm 8's top passes through the pulley with wire rope 6 to be connected, utilizes the pulley to prevent that wire rope 6 from taking place wearing and tearing at the rolling in-process.

The oil tank 4 is welded on the outer wall of the top of the shell 1, the worms 10 are connected between the inner walls of the two sides of the oil tank 4 through bearings, one end of a connecting shaft of the winding drum 3 penetrates through the oil tank 4 and is welded with a worm wheel 9, the worm wheel 9 is meshed with the worm 10, the worm 10 is used for driving the worm wheel 9 to rotate, the winding drum 3 is driven by the worm wheel 9 to rotate, and meanwhile, the self-locking effect of the worm 10 and the worm wheel 9 during transmission can prevent the winding drum 3 from reversely rotating; the outer wall of one side of the oil tank 4 is connected with a driving motor 11 through a bolt, the model of the driving motor 11 is CH-28, one end of an output shaft of the driving motor 11 is connected with the worm 10 through a spline, and the driving motor 11 is used for driving the worm 10 to rotate; an oil inlet nozzle 12 is welded on the outer wall of the top of the oil tank 4, an oil seal head 13 is connected to the inside of the oil inlet nozzle 12 through threads, and lubricating oil can be added into the oil tank 4 through the oil inlet nozzle 12, so that the abrasion of the worm 10 and the worm wheel 9 during transmission is reduced; a limiting groove 22 is formed in the outer wall of the top of the extension arm 8, a limiting pin 23 is inserted into the outer wall of the top of the cantilever 5, the bottom end of the limiting pin 23 extends into the limiting groove 22, and the limiting pin 23 is used for limiting the extension arm 8; mounting plates 21 are welded on the outer walls of two sides of the base 17, when the crane is used, the crane is fixed with a placing plane through the mounting plates 21, balancing weights 24 are uniformly distributed in the shell 1, and a switch door can be mounted on one side of the shell 1 through hinges, so that the balancing weights 24 can be taken out conveniently; base 17's inside is provided with lifter plate 14, there is evenly distributed's electric telescopic handle 16 through bolted connection between lifter plate 14 and base 17's the top inner wall, electric telescopic handle 16's model is YNT-03, lifter plate 14's bottom outer wall has evenly distributed's truckle 15 through bolted connection, utilize electric telescopic handle 16 to drive lifter plate 14 and move, make the truckle 15 of lifter plate 14 bottom contact with ground, and then make the hoist conveniently remove.

The utility model discloses a theory of operation does: when the crane is used, when a heavy object needs to be lifted by the crane, the power supply of the motor 20 is switched on through a lead, the motor 20 drives the screw rod 18 to rotate, the extension arm 8 extends out of the cantilever 5 due to the rotation of the screw rod 18, so that the lifting range of the crane is increased, the power supply of the driving motor 11 is switched on through the lead, so that the driving motor 11 drives the worm 10 to rotate, the worm 10 rotates to drive the worm wheel 9 to rotate, so that the worm wheel 9 drives the winding drum 3 to rotate, the steel wire rope 6 on the winding drum 3 is unreeled, the hook 7 is contacted with the heavy object and is hooked with the heavy object through the hook 7, at the moment, the driving motor 11 is turned over, the winding drum 3 winds the steel wire rope 6, the heavy object can be lifted, the casing 1 is rotated through the cantilever 5, and the casing 1 and the base 17 are rotated through the supporting rotary bearing, and then make the heavy object can put in appointed position, when needs move the hoist, through the power of wire switch-on electric telescopic handle 16 for electric telescopic handle 16 drives lifter plate 14 and carries out the downstream, and then makes the truckle 15 of lifter plate 14 bottom contact with ground, can be convenient remove the hoist through truckle 15.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A small-tonnage crane comprises a shell (1) and is characterized in that the outer wall of the bottom of the shell (1) is connected with a base (17) through a rotary supporting bearing, the outer wall of one side of the shell (1) is connected with a cantilever (5) through a bolt, an extension arm (8) is movably inserted in the cantilever (5), a partition plate (19) is welded on the inner wall of the cantilever (5), the inner wall of the bottom of the cantilever (5) is connected with a motor (20) through a bolt, the inside of the extension arm (8) is connected with a screw rod (18) through a thread, one end of the screw rod (18) penetrates through the partition plate (19) and is connected with an output shaft of the motor (20) through a spline, two support plates (2) are welded on the outer wall of the top of the shell (1), a winding drum (3) is connected between the two support plates (2) through a bearing, and a steel wire rope (6) is wound on the outside of the winding drum (3), one end, far away from the winding drum (3), of the steel wire rope (6) is connected with a hook (7) through a bolt, and the top end of the extension arm (8) is connected with the steel wire rope (6) through a pulley.

2. The small-tonnage crane according to claim 1, wherein an oil tank (4) is welded to the outer wall of the top of the casing (1), a worm (10) is connected between the inner walls of the two sides of the oil tank (4) through a bearing, a worm wheel (9) is welded to one end of the connecting shaft of the winding drum (3) through the oil tank (4), and the worm wheel (9) is meshed with the worm (10).

3. The small-tonnage crane as set forth in claim 2, wherein a driving motor (11) is connected to an outer wall of one side of the oil tank (4) through a bolt, and one end of an output shaft of the driving motor (11) is connected with the worm (10) through a spline.

4. The small-tonnage crane according to claim 2, wherein an oil inlet nozzle (12) is welded to the outer wall of the top of the oil tank (4), and an oil seal head (13) is connected to the inside of the oil inlet nozzle (12) through a thread.

5. The small-tonnage crane according to claim 1, wherein a limiting groove (22) is formed in the outer wall of the top of the extension arm (8), a limiting pin (23) is inserted into the outer wall of the top of the cantilever (5), and the bottom end of the limiting pin (23) extends into the limiting groove (22).

6. The small-tonnage crane according to claim 1, wherein mounting plates (21) are welded to the outer walls of the two sides of the base (17), and evenly distributed counterweights (24) are arranged inside the casing (1).

7. The small-tonnage crane according to claim 1, wherein a lifting plate (14) is arranged inside the base (17), electric telescopic rods (16) are uniformly distributed and connected between the lifting plate (14) and the inner top wall of the base (17) through bolts, and casters (15) are uniformly distributed and connected to the outer bottom wall of the lifting plate (14) through bolts.