CN217756615U

CN217756615U - Multi-section lifting crane

Info

Publication number: CN217756615U
Application number: CN202220953767.6U
Authority: CN
Inventors: 乔钦涛; 王兆波; 赵敏; 乔钦翔; 乔向东; 王祯
Original assignee: Demag Cranes Dalian Co ltd
Current assignee: Demag Cranes Dalian Co ltd
Priority date: 2022-04-24
Filing date: 2022-04-24
Publication date: 2022-11-08
Anticipated expiration: 2032-04-24

Abstract

The utility model discloses a hoist that multistage goes up and down, include: couple and support frame, the couple is installed on the extension frame, the spout has been seted up on the surface of extension frame, the inside gomphosis of spout has the stopper, stopper one side fixed connection is at the inner wall of fixed block, the one end at the support frame is installed to the fixed block, one side that the fixed block was kept away from to the support frame is connected with the connecting plate, the surface mounting of connecting plate has revolving cylinder, revolving cylinder's one end swing joint has the rolling frame, the surface rolling of rolling frame has the rope, the one end of rope is connected on the engaging lug. This hoist that multistage goes up and down uses through the cooperation between extension frame, stopper, fixed block, support frame, connecting plate, revolving cylinder, rolling frame, rope, pulley, pivot and the engaging lug for the rolling of rolling frame to the rope, thereby control extension frame's length.

Description

Multi-section lifting crane

Technical Field

The utility model relates to a hoist technical field specifically is a hoist that multistage goes up and down.

Background

The crane refers to a multi-action crane for vertically lifting and horizontally carrying heavy objects within a certain range. Also known as crown blocks, navigation cranes and cranes. The tire crane is mainly characterized in that: the traveling cab and the hoisting control cab are combined into a whole and are formed by the evolution of the crawler crane, the crawler and the traveling support part of the traveling mechanism are changed into a chassis with tires, the defect that a crawler plate of the crawler crane damages the road surface is overcome, and the crawler crane belongs to material handling machinery.

This prior art solution also presents the following problems when in use:

1. the boom of the crane is too long, so that the crane is inconvenient to move due to space limitation in the moving process, and the limitation of the crane is caused;

2. the crane cannot adjust the height of the device according to the size of the hoisted object, resulting in poor flexibility of the device.

Improvements are needed to address the above issues to meet market demands.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a hoist that multistage goes up and down to the jib loading boom overlength that proposes the hoist among the above-mentioned background of solution can lead to the hoist at the in-process that removes because the restriction in space, and the removal that leads to the hoist is inconvenient, causes the problem of the limitation of hoist.

In order to achieve the above object, the utility model provides a following technical scheme: a multi-segment lift crane comprising: the hook is mounted on the extension frame, a sliding groove is formed in the surface of the extension frame, a limiting block is embedded in the sliding groove, one side of the limiting block is fixedly connected to the inner wall of the fixing block, and the fixing block is mounted at one end of the support frame;

one side that the fixed block was kept away from to the support frame is connected with the connecting plate, the surface mounting of connecting plate has revolving cylinder, revolving cylinder's one end swing joint has the rolling frame, the surperficial rolling of rolling frame has the rope, the one end of rope is connected on the engaging lug, the engaging lug welding is in top one side of extension frame, extension frame one end be provided with the spring with the fixed block constitutes elastic telescopic swing joint.

Preferably, the surface of rope passes through the top of pulley, the inside through connection of pulley has the pivot, the both ends swing joint of pivot is on the support frame, through set up the pulley in the middle part of the rope for the rope frictional force is littleer when removing.

Preferably, the bottom movable mounting of support frame is on the base, the support frame is flexible connection structure with the base, the inside through connection of base has fixing bolt, fixing bolt runs through the one end laminating of base on the lateral wall of support frame, through carrying out the lift activity between support frame and the base, drives the support frame and removes in the vertical direction.

Preferably, one side fixedly connected with regulating block of support frame, the inside screw thread through connection of regulating block has accommodate the lead screw, accommodate the lead screw and regulating block are screw thread elevation structure, and through rotating accommodate the lead screw, accommodate the lead screw can drive the regulating block through the screw thread and go up and down the activity.

Preferably, the bottom of the adjusting screw rod is installed on a motor, the motor is installed on an installation plate of the side wall of the base, and the motor can drive the adjusting screw rod to rotate by starting the motor.

Preferably, install the counter weight platform on the base, the guardrail is placed to the top of counter weight platform installation, the balancing weight has been placed to the inside of placing the guardrail, through installing the counter weight platform in base one side, avoids the base to take place the condition of turning on one's side because the goods is overweight to lead to the base.

Compared with the prior art, the beneficial effects of the utility model are that:

1. this hoist that multistage goes up and down uses through the cooperation between extension frame, stopper, fixed block, support frame, connecting plate, revolving cylinder, rolling frame, rope, pulley, pivot and the engaging lug for the rolling of rolling frame to the rope, thereby the length of control extension frame.

2. This hoist that multistage goes up and down uses through the cooperation between regulating block, accommodate the lead screw, motor, base, the fixing bolt for accommodate the lead screw drives the support frame and removes in the vertical direction, makes things convenient for the support frame to carry out the regulation of height to the size of goods.

Drawings

FIG. 1 is a schematic view of the structure of the present invention;

FIG. 2 is a schematic view of the connection structure of the extension frame and the fixing block of the present invention;

fig. 3 is a schematic view of the connection structure of the base and the counterweight table of the present invention.

In the figure: 1. hooking; 2. a lengthening frame; 3. a limiting block; 4. a fixed block; 5. a support frame; 6. a connecting plate; 7. a rotating cylinder; 8. a winding frame; 9. a rope; 10. a pulley; 11. a rotating shaft; 12. connecting lugs; 13. a regulating block; 14. adjusting the screw rod; 15. a motor; 16. a base; 17. fixing the bolt; 18. a counterweight table; 19. placing a guardrail; 20. and a balancing weight.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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. 1-3, the present invention provides a technical solution: a multi-segment lift crane comprising: the hook 1 is mounted on the extension frame 2, a sliding groove is formed in the surface of the extension frame 2, a limiting block 3 is embedded in the sliding groove, one side of the limiting block 3 is fixedly connected to the inner wall of the fixing block 4, the fixing block 4 is mounted at one end of the support frame 5, one side, far away from the fixing block 4, of the support frame 5 is connected with a connecting plate 6, a rotary cylinder 7 is mounted on the surface of the connecting plate 6, one end of the rotary cylinder 7 is movably connected with a winding frame 8, a rope 9 is wound on the surface of the winding frame 8, one end of the rope 9 is connected to a connecting lug 12, the connecting lug 12 is welded to one side of the top of the extension frame 2, and one end of the extension frame 2 is provided with a spring and elastically and telescopically movably connected with the fixing block 4;

the length of the extension frame 2 is controlled by starting the rotary cylinder 7, so that the extension frame 2 can hoist cargos in a sectional manner, and the problems that equipment is inconvenient to move due to the fact that the extension frame 2 is too long in a narrow space, the cargos are limited to move, and hoisting is caused are avoided;

the surface of the rope 9 penetrates through the top of a pulley 10, a rotating shaft 11 is connected inside the pulley 10 in a penetrating manner, two ends of the rotating shaft 11 are movably connected onto a support frame 5, the bottom of the support frame 5 is movably mounted on a base 16, the support frame 5 and the base 16 are of a telescopic connection structure, a fixing bolt 17 is connected inside the base 16 in a penetrating manner, one end of the fixing bolt 17, penetrating through the base 16, is attached to the side wall of the support frame 5, an adjusting block 13 is fixedly connected to one side of the support frame 5, an adjusting screw rod 14 is connected to the inner thread of the adjusting block 13 in a penetrating manner, the adjusting screw rod 14 and the adjusting block 13 are of a thread lifting structure, the bottom of the adjusting screw rod 14 is mounted on a motor 15, the motor 15 is mounted on a mounting plate of the side wall of the base 16, a counterweight table 18 is mounted on the base 16, a placing guardrail 19 is mounted at the top of the counterweight table 18, and a counterweight 20 is placed inside the placing guardrail 19;

by starting the motor 15, the motor 15 drives the adjusting screw rod 14 to rotate, and the adjusting screw rod 14 drives the adjusting block 13 to move in the vertical direction, so that the vertical height of the adjusting block 13 can be adjusted, and the crane can flexibly hoist cargoes of different sizes.

In summary, the following steps: as shown in fig. 1-3, when the multi-section lifting crane is used, firstly, the counterweight block 20 is stored in the place where the guardrail 19 is placed, the counterweight table 18 is installed on one side of the base 16, then, a cargo to be lifted is placed on the hook 1, the rope 9 on the hook 1 is contracted, then, the rotary cylinder 7 is started, the rotary cylinder 7 drives the winding frame 8 to rotate, the winding frame 8 winds the rope 9, the rope 9 moves on the pulley 10, meanwhile, the rope 9 pulls the connecting lug 12, the extension frame 2 is made to perform telescopic movement in the inside of the fixing block 4, so that the extension frame 2 is adjusted in sections, the length of the extension frame 2 is kept to reach a proper position, the motor 15 is started, the motor 15 drives the adjusting screw rod 14 to rotate, the adjusting screw rod 14 is connected with the adjusting block 13 through threads, so that the adjusting block 13 performs lifting movement, and the supporting frame 5 and the base 16 perform telescopic movement at the same time, so as to realize adjustment of the vertical height of the supporting frame 5, then, the fixing bolt 17 penetrates through the base 16 to contact with the supporting frame 5, so that the supporting frame 5 is supported and positioned, so that the crane can adjust the size of the cargo, and the crane, so that the lifting crane can be lifted cargo more conveniently and the crane can be lifted cargo.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A multi-segment lift crane comprising: couple (1) and support frame (5), its characterized in that: the hook (1) is installed on the extension frame (2), a sliding groove is formed in the surface of the extension frame (2), a limiting block (3) is embedded in the sliding groove, one side of the limiting block (3) is fixedly connected to the inner wall of the fixing block (4), and the fixing block (4) is installed at one end of the support frame (5);

one side that fixed block (4) were kept away from in support frame (5) is connected with connecting plate (6), the surface mounting of connecting plate (6) has revolving cylinder (7), the one end swing joint of revolving cylinder (7) has rolling frame (8), the surface rolling of rolling frame (8) has rope (9), the one end of rope (9) is connected on engaging lug (12), engaging lug (12) welding is in top one side of extension frame (2), extension frame (2) one end be provided with the spring with fixed block (4) constitute the flexible swing joint of elasticity.

2. A multi-segment lift crane according to claim 1, characterized in that: the top of pulley (10) is passed on the surface of rope (9), the inside through connection of pulley (10) has pivot (11), the both ends swing joint of pivot (11) is on support frame (5).

3. A multi-segment lift crane according to claim 2, characterized in that: the bottom movable mounting of support frame (5) is on base (16), support frame (5) and base (16) are flexible connection structure, the inside through connection of base (16) has fixing bolt (17), the one end laminating that fixing bolt (17) run through base (16) is on the lateral wall of support frame (5).

4. A multi-segment lift crane according to claim 3, wherein: one side fixedly connected with regulating block (13) of support frame (5), the internal thread through connection of regulating block (13) has accommodate the lead screw (14).

5. A multi-segment lift crane according to claim 4, characterized in that: the adjusting screw rod (14) and the adjusting block (13) are of a thread lifting structure.

6. A multi-segment lift crane according to claim 5, characterized in that: the bottom of accommodate the lead screw (14) is installed on motor (15), motor (15) are installed on the mounting panel of base (16) lateral wall.

7. A multi-segment lift crane according to claim 6, wherein: install counter weight platform (18) on base (16), the top of counter weight platform (18) is installed and is placed guardrail (19), place the inside of guardrail (19) and placed balancing weight (20).