CN214828576U

CN214828576U - Self-discharging device for tower crane counterweight

Info

Publication number: CN214828576U
Application number: CN202121460747.7U
Authority: CN
Inventors: 王军华; 罗方红; 李鑫; 李夏莉
Original assignee: Guizhou Pangyuan Machinery Engineering Co ltd
Current assignee: Guizhou Pangyuan Machinery Engineering Co ltd
Priority date: 2021-06-29
Filing date: 2021-06-29
Publication date: 2021-11-23
Anticipated expiration: 2031-06-29

Abstract

The application discloses a self-discharging device for a tower crane counterweight in the technical field of tower crane equipment, which comprises a supporting mechanism and a hoisting mechanism, wherein the supporting mechanism comprises two supporting rods, the two supporting rods are fixedly connected to a balance arm, a same cross arm is fixedly connected between the two supporting rods, and the cross arm is positioned above the position, where the balance arm is used for placing a counterweight; the hoisting mechanism comprises a fixed pulley and a steel rope, the fixed pulley is fixed on the cross arm, one end of the steel rope is wound on a winding drum of the winch, and the other end of the steel rope is wound around the fixed pulley and fixedly connected with a clamping piece for clamping and fixing the balancing weight. This scheme has solved present tower crane and can't dismantle the balancing weight problem by oneself.

Description

Self-discharging device for tower crane counterweight

Technical Field

The utility model relates to a tower crane equipment technical field, concretely relates to balanced heavy self-discharging device of tower crane.

Background

The tower crane is the most common hoisting equipment in construction sites, also known as tower crane, and is used for hoisting construction raw materials such as reinforcing steel bars, wood ridges, concrete, steel pipes and the like for construction.

The tower crane mainly comprises a tower body, a jacking sleeve frame, a rotary joint, a crane boom, a balance arm, a winch, a variable amplitude trolley, a tower cap and the like, wherein the tower crane is additionally provided with a plurality of balancing weights on the balance arm in order to keep the balance of the crane boom. The counterweight block is large in size and mass, so that the counterweight block can be mounted or dismounted only by lifting the counterweight block by other lifting trucks during mounting. This kind of mode not only makes the equipment of tower crane troublesome, and efficiency is not high, has increased extra spending moreover.

SUMMERY OF THE UTILITY MODEL

The utility model provides a self-discharging device for a tower crane counterweight to solve the problem that the counterweight can not be dismounted by itself by the existing tower crane.

In order to solve the technical problem, the utility model provides a following technical scheme: a self-discharging device for a tower crane counterweight comprises a supporting mechanism and a hoisting mechanism, wherein the supporting mechanism comprises two supporting rods, the two supporting rods are fixedly connected to a counterweight arm, a same transverse arm is fixedly connected between the two supporting rods, and the transverse arm is positioned above the position, where the counterweight block is placed, of the counterweight arm;

the hoisting mechanism comprises a fixed pulley and a steel rope, the fixed pulley is fixed on the cross arm, one end of the steel rope is wound on a winding drum of the winch, and the other end of the steel rope is wound around the fixed pulley and fixedly connected with a clamping piece for clamping and fixing the balancing weight.

The utility model discloses the theory of operation: when the counterweight block needs to be taken down, the counterweight block is fixed on the clamping piece, then the winch is started, the winding drum of the winch starts to rotate when the winch operates, because the steel rope starts to be wound on the winding drum of the windlass gradually when the winding drum of the windlass rotates, because the fixed pulley is fixed on the cross arm, one end of the steel rope is wound on a winding drum of the middle winch, the other end of the steel rope is fixedly connected with a clamping piece by winding a fixed pulley, therefore, when the steel rope is gradually wound on the winding drum of the winch, the steel rope is gradually shortened, the clamping piece drives the fixed counterweight block to move upwards to be separated from the balance arm when the steel rope is gradually shortened, the counterweight block is pushed to be separated from the range of the balance arm, then the winding engine is operated reversely, the winding drum of the winding engine starts to rotate reversely, then the steel rope wound on the winding drum starts to extend gradually, and at the moment, the counterweight block starts to move downwards gradually until the counterweight block moves to the ground and then the clamping piece is loosened.

The utility model has the advantages that: can realize the automatic installation and the dismantlement of the balancing weight of tower crane through this scheme, need not prepare the crane truck separately and carry out balancing weight installation or dismantlement.

Further, the holder includes horizontal fixed plate, the last fixed surface of fixed plate is connected with the connecting piece, connecting piece and steel cable connection, four vertical dead levers of lower fixed surface connection of fixed plate, four the dead lever is two for a set of both sides of fixing at the fixed plate respectively, and the bottom of every dead lever is rotated and is connected with the bottom plate, and the rotation range of bottom plate is 0 ~ 90 degrees, and when bottom plate turned angle was 90 degrees, the bottom plate was perpendicular with the dead lever, the bottom plate is equipped with the torsional spring with the rotation junction of dead lever. Before using, rotate bottom plate and dead lever laminating, the torsional spring is in the torsional state this moment, then insert the dead lever and join in marriage the clearance of dress piece, the bottom plate receives sheltering from of balancing weight can't be through when the dead lever moves down the bottom that surpasss the balancing weight this moment, the bottom plate no longer receives sheltering from of balancing weight, the bottom plate rotates 90 degrees and dead lever verticality under the torsion effect of torsional spring this moment, the bottom plate is located the balancing weight this moment under, when the dead lever shifts up and drives four bottom plates and shift up, the bottom plate can lift up the balancing weight.

Furthermore, the connecting pieces are four, and the four connecting pieces are respectively arranged on the periphery of the upper surface of the fixing plate and are distributed in a rectangular shape. Its purpose, four are the connecting pieces that the rectangle distributes, stability when can effectual improvement steel cable pull-up fixed plate avoids appearing the slope.

Further, the bottom of each fixed rod is provided with a groove for the bottom plate to enter. Its purpose can hold the bottom plate through the recess when bottom plate and dead lever laminating.

Furthermore, each bottom of the fixed rod is provided with an electromagnet, the electromagnets are located in the grooves, and the bottom plate is fixedly connected with a magnetic block. The bottom plate fixing device comprises a bottom plate, a fixing rod, an electromagnet, a torsion spring, a base plate and a base plate, wherein the electromagnet is arranged on the bottom plate, the base plate is connected with the fixing rod through the torsion spring, the base plate is connected with the base plate through the torsion spring, the base plate is connected with the fixing rod through the torsion spring, and the electromagnet is started after the base plate is attached to the fixing rod.

And furthermore, the two support rods are respectively and fixedly connected with an inclined stabilizer bar, and one end of the stabilizer bar, which is far away from the support rods, is fixedly connected with the balance arm. Its purpose improves the stability of bracing piece through the stabilizer bar, avoids it to take place the slope.

Furthermore, the bottom plate all is equipped with anti-skidding line with one side of balancing weight contact. The purpose is to increase the friction between the bottom plate and the balancing weight through the anti-skidding lines and reduce the possibility that the balancing weight may skid.

Further, the bottom end of the fixed rod is wedge-shaped. Its purpose is convenient for through this kind of setting, and the dead lever inserts in the clearance between balancing weight and the balancing weight.

Drawings

FIG. 1 is a schematic structural view of a self-discharging device of a tower crane counterweight of the present invention;

fig. 2 is an enlarged view of a in fig. 1.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the tower comprises a tower cap 1, a steel rope 2, a balancing weight 3, a balance arm 4, a winch 5, a jacking sleeve frame 6, a tower body 7, a variable-amplitude trolley 8, a crane boom 9, a stabilizer bar 10, a cross arm 11, a fixed pulley 12, a fixed plate 13, a fixed rod 14, a supporting rod 15, a groove 16 and a bottom plate 17.

The embodiment is substantially as shown in figures 1 and 2:

the utility model provides a balanced heavy self-discharging device of tower crane, includes body of the tower 7, jacking stock 6, rotary joint, jib loading boom 9, balance arm 4, hoist engine 5, becomes width of cloth dolly 8, tower cap 1, supporting mechanism and hoisting mechanism, and supporting mechanism includes two spinal

branch vaulting poles

15, and 15 fixed connection of two spinal branch vaulting poles are on balance arm 4, the same root xarm 11 of fixedly connected with between two spinal branch vaulting poles 15, and xarm 11 is located balance arm 4 and places the top of 3 positions of balancing weight. The two support rods 15 are respectively fixedly connected with an inclined stabilizer bar 10, and one end of the stabilizer bar 10 far away from the support rods 15 is fixedly connected with the balance arm 4.

The hoisting mechanism comprises a fixed pulley 12 and a steel rope 2, the fixed pulley 12 is fixed on the cross arm 11, one end of the steel rope 2 is wound on a winding drum of the winch 5, and the other end of the steel rope 2 bypasses the fixed pulley 12 and is fixedly connected with a clamping piece for clamping and fixing the counterweight block 3.

The holder includes horizontal fixed plate 13, four connecting pieces of fixed plate 13's last fixed surface are connected with, four connecting pieces set up respectively and are the rectangle form around fixed plate 13 upper surface and distribute, the connecting piece is connected with steel cable 2, four vertical dead levers 14 of fixed plate 13's lower fixed surface are connected, the bottom of dead lever 14 is the wedge, four dead levers 14 two are a set of both sides of fixing at fixed plate 13 respectively, the bottom of every dead lever 14 is rotated and is connected with bottom plate 17, bottom plate 17 all is equipped with anti-skidding line with one side of balancing weight 3 contact, the rotation range of bottom plate 17 is 0 ~ 90 degrees, when bottom plate 17 turned angle is 90 degrees, bottom plate 17 is perpendicular with dead lever 14, bottom plate 17 is equipped with the torsional spring with the rotation junction of dead lever 14, the bottom of every dead lever 14 all is equipped with the recess 16 that is used for bottom plate 17 to get into. The bottom of each fixing rod 14 is provided with an electromagnet which is positioned in the groove 16, and a bottom plate 17 is fixedly connected with a magnetic block.

The specific implementation process is as follows:

when the balancing weight 3 is taken off to needs, fix balancing weight 3 on the holder earlier, rotate bottom plate 17 and the laminating of dead lever 14, the torsional spring is in torsion state this moment, then insert dead lever 14 in the clearance of joining in marriage the dress piece, bottom plate 17 receives sheltering from of balancing weight 3 can't be through when dead lever 14 moves down the bottom that surpasss balancing weight 3 this moment, bottom plate 17 no longer receives sheltering from of balancing weight 3, bottom plate 17 rotates 90 degrees under the torsional force effect of torsional spring and is perpendicular with dead lever 14 this moment, bottom plate 17 is located balancing weight 3 under this moment. Then the hoist 5 is started, the winding drum of the hoist 5 starts to rotate when the hoist 5 operates, when the winding drum of the hoist 5 rotates, the steel rope 2 starts to gradually wind on the winding drum of the hoist 5, because the fixed pulley 12 is fixed on the cross arm 11, one end of the steel rope 2 winds on the winding drum of the hoist 5, and the other end of the steel rope 2 winds around the fixed pulley 12 and is fixedly connected with the clamping piece, when the steel rope 2 gradually winds on the winding drum of the hoist 5, the steel rope 2 gradually shortens, the fixed rod 14 drives the bottom plate 17 to move upwards, when the fixed rod 14 moves upwards to drive the four bottom plates 17 to move upwards, the bottom plate 17 can lift the counterweight 3 to drive the fixed counterweight 3 to move upwards to be separated from the balance arm 4, at the moment, the counterweight 3 is pushed to be separated from the range of the balance arm 4, then the hoist 5 reversely operates, the winding drum of the hoist 5 starts to reversely rotate, then the steel rope 2 wound on the steel rope starts to gradually extend, and the balancing weight 3 starts to gradually move downwards until the clamping piece is released after the balancing weight moves to the ground.

Claims

1. The utility model provides a balanced heavy self-discharging device of tower crane which characterized in that: the lifting mechanism comprises a supporting mechanism and a lifting mechanism, wherein the supporting mechanism comprises two supporting rods, the two supporting rods are fixedly connected to a balance arm, a same cross arm is fixedly connected between the two supporting rods, and the cross arm is positioned above the position, where a balancing weight is placed, of the balance arm;

2. The tower crane counterweight self-discharging device according to claim 1, wherein: the holder includes horizontal fixed plate, the last fixed surface of fixed plate is connected with the connecting piece, connecting piece and steel cable connection, four vertical dead levers of lower fixed surface connection of fixed plate, four the dead lever is two for a set of both sides of fixing at the fixed plate respectively, and the bottom of every dead lever is rotated and is connected with the bottom plate, and the rotation range of bottom plate is 0 ~ 90 degrees, and when bottom plate turned angle was 90 degrees, the bottom plate was perpendicular with the dead lever, the bottom plate is equipped with the torsional spring with the rotation junction of dead lever.

3. The tower crane counterweight self-discharging device according to claim 2, wherein: the connecting pieces are four and are respectively arranged on the periphery of the upper surface of the fixing plate and distributed in a rectangular shape.

4. The tower crane counterweight self-discharging device according to claim 3, wherein: the bottom of each fixed rod is provided with a groove for the bottom plate to enter.

5. The tower crane counterweight self-discharging device according to claim 4, wherein: the bottom of each fixed rod is provided with an electromagnet, the electromagnets are located in the grooves, and the bottom plate is fixedly connected with a magnetic block.

6. The tower crane counterweight self-discharging device according to claim 5, wherein: two on the bracing piece respectively fixedly connected with inclined stabilizer bar, the stabilizer bar is kept away from the one end and the balance arm fixed connection of bracing piece.

7. The tower crane counterweight self-discharging device of claim 6, wherein: and anti-skid grains are arranged on one side of the bottom plate, which is in contact with the balancing weight.

8. The tower crane counterweight self-discharging device of claim 7, wherein: the bottom end of the fixed rod is wedge-shaped.