CN218950877U

CN218950877U - Lifting upper clamping plate capable of realizing multiplying power adjustment

Info

Publication number: CN218950877U
Application number: CN202223413064.3U
Authority: CN
Inventors: 胡雅柯
Original assignee: Sichuan Qiangli Construction Machinery Co ltd
Current assignee: Sichuan Qiangli Construction Machinery Co ltd
Priority date: 2022-12-20
Filing date: 2022-12-20
Publication date: 2023-05-02
Anticipated expiration: 2032-12-20

Abstract

The utility model discloses a lifting upper clamping plate capable of realizing multiplying power adjustment, which mainly comprises a clamping plate body, a counterweight plate, an upper pulley and a steel wire rope. The lifting upper clamping plate capable of realizing multiplying power adjustment solves the technical problems that in the prior art, the gravity center is unstable and a steel wire rope is easy to wear.

Description

Lifting upper clamping plate capable of realizing multiplying power adjustment

Technical Field

The utility model relates to the technical field of tower cranes, in particular to a lifting upper clamping plate capable of realizing multiplying power adjustment.

Background

The tower crane is the most widely used main vertical transportation hoisting equipment in the construction of the building engineering, commonly called as a tower crane, and the main advantages of the equipment include attractive appearance, stability and reliability, light dead weight of the hoisting arm, adjustable length, high hoisting speed, easy operation, low failure rate, simple maintenance and the like. The method is used for projects such as high-rise civil buildings, bridge hydraulic engineering, large-span industrial plants and the like. The equipment mainly comprises a foundation, a tower body, a rotary, balance arms, a counterweight, a lifting arm, a mechanism, a trolley, a lifting hook and other components. During hoisting construction, the tower crane trolley and the lifting hook are provided with the steel wire ropes, and the multiplying power can be changed through the upper clamping plate, so that different weight hoisting work is realized, but certain defects exist during hoisting construction.

The applicant found that the prior art has at least the following technical problems:

1. in the prior art, when the multiplying power is changed, the center of gravity of the upper clamping plate is unstable in the up-and-down movement process to cause overturning, so that the steel wire rope is twisted, and meanwhile, the operation is inconvenient.

2. In the prior art, the upper clamping plate is propped against the lower part of the trolley at two multiplying powers, so that the trolley is easy to shake, and the steel wire rope is quickly worn to enable the lifting hook to fall down to hurt people.

Disclosure of Invention

The utility model aims to provide a lifting upper clamping plate capable of realizing multiplying power adjustment, which solves the technical problems of unstable gravity center and easy abrasion of a steel wire rope in the prior art.

In order to achieve the above purpose, the utility model provides a lifting upper clamping plate capable of realizing multiplying power adjustment, which comprises a clamping plate body, a counterweight plate, an upper pulley and a steel wire rope.

Further, the counterweight plate is symmetrically arranged at the outer sides of the two sides of the clamping plate body, and the lower end of the counterweight plate is provided with a second connecting hole which penetrates through the clamping plate body.

Further, the upper end of splint body has seted up first connecting hole, and pulley hole has been seted up to the intermediate position of splint body, and splint body and the inside top edge of counter weight board fixed position are provided with the backup pad, and the top of splint body is provided with the limiting plate.

Further, the backup pad is located the lower extreme of last pulley, and the clearance between backup pad and the last pulley is less than 20% of wire rope's external diameter.

Further, the upper pulley is arranged on the pulley hole through a pulley shaft and is movably connected with the clamping plate body, a limit groove is formed in the outer contour of the upper pulley, and a pulley bearing is further arranged in the middle of the pulley shaft and the upper pulley.

Further, the wire rope passes through the lower part of the limit groove of the upper pulley, and two ends of the wire rope are upwards movably connected with the hoisting assembly.

Based on the technical scheme, the utility model can produce the following beneficial effects:

(1) According to the lifting upper clamping plate capable of realizing multiplying power adjustment, the counterweight plate is arranged at the lower end of the clamping plate body, so that the whole gravity center of the upper clamping plate is downward, the lifting upper clamping plate can be kept in an original state to fall in the lifting and falling process, and inclination and deviation caused by unstable gravity center can be avoided.

(2) According to the lifting upper clamping plate capable of realizing multiplying power adjustment, the upper end and the lower end of the clamping plate body are provided with the connecting holes, the original state is that the connecting pins are movably connected with the lifting trolley at the upper end through the first connecting holes, and the upper clamping plate connected through the connecting pins cannot shake to cause abrasion of a steel wire rope.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present utility model;

FIG. 2 is a side view of the structure of an embodiment of the present utility model;

in the figure: 1. a splint body; 101. a first connection hole; 102. a second connection hole; 103. a pulley hole; 104. a support plate; 105. a limiting plate; 2. a weight plate; 3. an upper pulley; 301. a pulley shaft; 302. a pulley bearing; 303. a limit groove; 4. a wire rope.

Detailed Description

In order to better understand the purpose, structure and function of the present utility model, the following describes in detail a lifting upper clamping plate capable of realizing multiplying power adjustment with reference to the accompanying drawings.

In the description of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in the figure, the lifting upper clamping plate capable of realizing multiplying power adjustment comprises a clamping plate body 1, a counterweight plate 2, an upper pulley 3 and a steel wire rope 4, and is characterized in that the counterweight plate 2 is arranged at the lower end of the clamping plate body 1, the upper pulley 3 is arranged at the middle position of the clamping plate body 1, and the steel wire rope 4 passes through the lower edge of the upper pulley 3 and is connected with a lifting assembly.

The weight plate 2 is symmetrically arranged at the outer sides of two sides of the clamping plate body 1, the weight plate 2 is fixedly connected with the clamping plate body 1 in a welding mode of welding by welding rods, a second connecting hole 103 is formed in the lower end of the weight plate 2, and the second connecting hole 103 penetrates through the clamping plate body 1; the upper end of splint body 1 has seted up first connecting hole 101, and pulley hole 102 has been seted up to splint body 1 intermediate position, and splint body 1 and the inside top edge of counter weight board 2 fixed position are provided with backup pad 104, and splint body 1's top is provided with limiting plate 105, and limiting plate 105 is used for the punch holder to carry out spacingly when reaching the dolly lower extreme to prevent that the striking from directly causing the injury to splint body 1.

The supporting plate 104 is positioned at the lower end of the upper pulley 3, a gap between the supporting plate 104 and the upper pulley 3 is smaller than the outer diameter of the steel wire rope 4, the upper pulley 3 is mounted on the pulley hole 102 through the pulley shaft 301 and is movably connected with the clamping plate body 1, a limit groove 303 is formed in the outer contour of the upper pulley 3, and a pulley bearing 302 is further arranged in the middle position of the pulley shaft 301 and the upper pulley 3; the supporting plate 104 can increase the supporting strength of the upper clamping plate, and can limit the lower end of the steel wire rope 4 embedded in the limit groove 303 of the upper pulley 3 again, and at the moment, the steel wire rope 4 is limited in all aspects to prevent slipping.

The wire rope 4 passes below the limit groove 303 of the upper pulley 3, and two ends of the wire rope 4 are upwards movably connected with the hoisting assembly.

The specific operation mode of the utility model is as follows:

when the multiplying power is 2, the upper clamp body 1 is movably connected with the limiting surface of the lifting trolley through the first connecting hole 101 by adopting a connecting pin at the lower part of the lifting trolley, and the connecting pin is fixed on the lifting trolley through a chain for locking.

When higher hoist and mount load demand exists, lift off the connecting pin of upper end and let hoist and mount subassembly extension wire rope make splint drop downwards, under the effect of the balancing weight 2 of installing on splint body 1, the focus of splint body 1 can stable whereabouts downwards, adopts the connecting pin to be connected through second connecting hole 102 and lower plate when falling to ground, tensioning wire rope 4 forms 4 multiplying power hoist that are higher than the original multiplying power of lower plate twice this moment.

It will be understood that the utility model has been described with respect to certain embodiments and that various changes and equivalents may be made to those features and embodiments without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims

1. Can realize hoist and mount punch holder of multiplying power regulation, including splint body (1), counter weight board (2), go up pulley (3) and wire rope (4), its characterized in that, counter weight board (2) are installed in the lower extreme of splint body (1), go up the intermediate position at splint body (1) is installed to pulley (3), wire rope (4) pass from the lower limb of last pulley (3) and are connected with hoist and mount subassembly.

2. The lifting upper clamping plate capable of realizing multiplying power adjustment according to claim 1, wherein the weight plates (2) are symmetrically arranged on the outer sides of two sides of the clamping plate body (1), the lower ends of the weight plates (2) are provided with second connecting holes (103), and the second connecting holes (103) penetrate through the clamping plate body (1).

3. The lifting upper clamp plate capable of realizing multiplying power adjustment according to claim 1, wherein a first connecting hole (101) is formed in the upper end of the clamp plate body (1), a pulley hole (102) is formed in the middle position of the clamp plate body (1), and a supporting plate (104) is arranged at the upper edge inside the fixed position of the clamp plate body (1) and the counterweight plate (2); the top end of the clamping plate body (1) is provided with a limiting plate (105).

4. A lifting upper clamp plate capable of realizing multiplying power adjustment according to claim 3, wherein the supporting plate (104) is positioned at the lower end of the upper pulley (3), and the gap between the supporting plate (104) and the upper pulley (3) is less than 20% of the outer diameter of the steel wire rope (4).

5. The hoisting upper clamping plate capable of realizing multiplying power adjustment according to claim 1, wherein the upper pulley (3) is mounted on the pulley hole (102) through a pulley shaft (301) and is movably connected with the clamping plate body (1), a limit groove (303) is formed in the outer contour of the upper pulley (3), and a pulley bearing (302) is further arranged in the middle position of the pulley shaft (301) and the upper pulley (3).

6. The lifting upper clamping plate capable of realizing multiplying power adjustment according to claim 1, wherein the steel wire rope (4) passes through the lower part of the limiting groove (303) of the upper pulley (3), and two ends of the steel wire rope (4) are upwards movably connected with the lifting assembly.