CN116789008A - A tower lifting device - Google Patents

Abstract

The invention discloses a tower lifting device, which includes a base. The upper side wall of the base is fixedly connected with a hollow block. The outer wall of the hollow block is provided with a support mechanism. The upper side wall of the hollow block is fixed. A tower is connected, and a fixed block is fixedly connected to the upper end of the tower. A control room is installed on the side wall of the fixed block. A balance arm and a lifting arm are fixedly connected to the side walls of the fixed block. The lower side wall of the balance arm is fixedly connected with an adjustment box, and the lower side wall of the adjustment box is connected with a counterweight through an adjustment mechanism. The present invention adjusts the rotation of the counterweight and the distance between the counterweight and the adjusting arm to adjust the position of the counterweight so as to be applicable to more environments and increase the use range of the device. At the same time, the reaction force of the coil spring is utilized, and Under the frictional resistance between the side wall of the mounting block and the inner wall of the buffer block, the buffering effect on the lifting object is achieved.

Description

A tower lifting device

Technical field

The present invention relates to the technical field of tower cranes, and in particular to a tower lifting device.

Background technique

Tower crane, the abbreviation of "tower crane", is also called "tower crane". It is a kind of lifting equipment used in construction. According to the national standard classification, the model standard of tower crane is QT, where "Q" stands for "crane" and "T" stands for "tower". Generally, the domestic standard names are like this. Tower cranes can also be divided into many varieties according to different design forms, such as self-elevating tower cranes, internal climbing tower cranes, flat-head tower cranes, luffing jib tower cranes, Quick-installation tower cranes, etc. The current tower lifting devices can basically meet the needs of use, but there are also certain problems.

When tower cranes on the market are currently in use, the counterweights on the boom are fixed and cannot be adjusted. Moreover, due to the excessive weight, it is troublesome to adjust. Because the boom cannot be adjusted, the The scope of application will be reduced, the practicality will become worse, and a certain vibration force will be generated when the lifting arm is working. The current lifting device has poor shock absorption effect.

Contents of the invention

The purpose of the present invention is to propose a tower lifting device in order to solve the problems in the background technology.

In order to achieve the above objects, the present invention adopts the following technical solutions:

A tower lifting device includes a base, the upper side wall of the base is fixedly connected with a hollow block, the outer wall of the hollow block is provided with a support mechanism, and the upper side wall of the hollow block is fixedly connected with a tower , a fixed block is fixedly connected to the upper end of the tower, a control room is installed on the side wall of the fixed block, a balance arm and a lifting arm are fixedly connected to the side walls on both sides of the fixed block, and the balance arm The lower side wall is fixedly connected with an adjustment box. The lower side wall of the adjustment box is connected with a counterweight block through an adjustment mechanism. The lower side wall of the lifting arm is provided with a moving block. The lower side wall of the moving block is pulled through The rope and the pull ring are connected to a buffer block, the lower side wall of the buffer block is connected to a draw hook, and a buffer mechanism is provided between the draw hook and the buffer block.

Preferably, the adjustment mechanism includes a worm gear 1 that movablely penetrates the lower side wall of the adjustment box and is installed in the adjustment box. The lower side wall of the worm gear 1 is fixedly connected to a fixed frame, and the lower side wall of the fixed frame passes through a telescopic mechanism. There is an extension rod fixedly connected to the surface of the counterweight block. Both sides of the worm gear 1 are engaged with a worm gear 1 installed in the adjustment box. The outer wall of each worm gear 1 is fixedly covered with a gear gear 1. The inner top wall of the adjustment box is fixedly connected to a motor one, and the end of the output shaft of the motor one is fixedly connected to a gear two that meshes equally with the two gears one.

Preferably, the support mechanism includes a second motor fixedly connected to the inner bottom wall of the hollow block. The output shaft of the second motor is vertically upward and fixedly connected to a second worm. The outer side of the second worm is engaged with a worm mounted on the hollow block. There are a plurality of worm gears 2 inside and penetrating the inner wall of the hollow block. The side wall of each worm gear 2 away from the hollow block is fixedly connected with a right-angle frame, and the lower end of each of the right-angle frames is fixedly connected with a base.

Preferably, the buffering mechanism includes a connecting block fixedly connected to the upper end of the hook, the upper side wall of the connecting block is fixedly connected to a buffering rod slidably inserted into the lower sidewall of the buffering block, and the connecting block and the buffering block have a common A buffer spring is connected. The upper end of the buffer rod is fixedly connected to a toothed plate through a mounting block. The front side of the toothed plate is engaged with a gear installed in the buffer block. There is a gap between both sides of the gear and the inner wall of the buffer block. All are commonly connected with coil springs.

Preferably, the telescopic mechanism includes a motor three fixedly connected to the top wall of the fixed frame. The end of the output shaft of the motor three is fixedly connected with a screw rod that movable penetrates the lower side wall of the fixed frame and the upper end of the extension rod. The extension rod There are two guide rods fixedly connected between the upper end and the fixed frame.

Preferably, a plurality of counterweights are fixedly embedded in the base.

Preferably, a diagonal rod is fixedly connected to the right angle of each right-angle frame.

Preferably, the side walls on both sides of the installation block are frosted and both slide and fit on the inner wall of the buffer block.

Compared with existing technology, the advantages of this tower hoisting device are:

1. Motor 2 drives worm 2 to rotate, and then drives multiple worm gears 2 meshed with it to rotate synchronously, which can drive each right-angle frame to rotate in opposite directions until each pedestal is in contact with the ground, increasing the contact between the device and the ground. area, thereby greatly increasing the firmness of the device and the stability during construction;

2. Motor 1 drives gear 2 to rotate, and then uses the two gears meshed with it to rotate in the same direction at the same time, and drives worm gear 1 to rotate through the two worms 1 to adjust the position of the counterweight so that it can be used more appropriately. Multiple environments increase the scope of use of the device;

3. The motor three drives the screw rod to rotate, which can drive the extension rod to move axially along the outer walls of the two guide rods, thereby driving the counterweight block to move to adjust the distance between it and the fixed frame, thereby increasing the weight capacity of the counterweight block. range of adjustment;

4. When lifting an object, under the action of gravity of the object, the buffer rod can be pulled to drive the mounting block and the tooth plate to move downward, and then drive the gear three meshed with it to rotate, causing the coil spring to elastically deform, and The reaction force of the coil spring and the frictional resistance between the side wall of the mounting block and the inner wall of the buffer block are used to achieve the buffering effect on the lifting object;

To sum up, the present invention can adjust the position of the counterweight by rotating the counterweight and adjusting the distance between the counterweight and the adjusting arm, so as to be applicable to more environments, increase the use range of the device, and at the same time utilize the roll. The reaction force of the spring and the frictional resistance between the side wall of the mounting block and the inner wall of the buffer block achieve a buffering effect on the lifting object.

Description of the drawings

Figure 1 is a schematic structural diagram of a tower hoisting device proposed by the present invention;

Figure 2 is a cross-sectional view of the connection between the adjustment box and the counterweight block in a tower hoisting device proposed by the present invention;

Figure 3 is a cross-sectional view of the connection between the base and the hollow block in a tower hoisting device proposed by the present invention;

Figure 4 is a cross-sectional view of the connection between the hook and the buffer block in a tower lifting device proposed by the present invention;

Figure 5 is a top view of the connection between the second worm and each second worm gear in a tower hoisting device proposed by the present invention.

In the picture: 1 base, 2 hollow block, 3 tower, 4 fixed block, 5 control room, 6 balance arm, 7 lifting arm, 8 adjustment box, 9 counterweight block, 10 moving block, 11 buffer block, 12 Retractor, 13 worm gear one, 14 fixed frame, 15 extension rod, 16 worm gear one, 17 gear one, 18 motor one, 19 gear two, 20 motor two, 21 worm gear two, 22 worm gear two, 23 right angle frame, 24 pedestal, 25 buffer rod, 26 buffer spring, 27 mounting block, 28 tooth plate, 29 gear three, 30 coil spring, 31 counterweight, 32 inclined rod, 33 motor three, 34 screw rod, 35 guide rod.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments.

In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", " The orientation or positional relationship indicated by "outside" and so on is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation. Specific orientations of construction and operation are therefore not to be construed as limitations of the invention.

Referring to Figures 1-5, a tower lifting device includes a base 1. A plurality of counterweights 31 are fixedly embedded in the base 1, which increases the firmness of the base 1. The upper side of the base 1 The hollow block 2 is fixedly connected to the wall. The outer wall of the hollow block 2 is provided with a support mechanism. The support mechanism includes a second motor 20 fixedly connected to the inner bottom wall of the hollow block 2. The output shaft of the second motor 20 is vertically upward and fixedly connected with a worm. 21. The outer side of the worm 21 is engaged with a plurality of worm gears 22 installed in the hollow block 2 and penetrating the inner wall of the hollow block 2. The side wall of each worm gear 22 away from the hollow block 2 is fixedly connected with a right-angle frame 23 , a diagonal rod 32 is fixedly connected to the right angle of each right-angle frame 23, and a base 24 is fixedly connected to the lower end of each right-angle frame 23. The starting motor two 20 drives the worm two 21 to rotate, and then drives a plurality of meshes with it. The two worm gears 22 rotate synchronously, which can drive each right-angle frame 23 to rotate in opposite directions until each base 24 contacts the ground, thereby increasing the contact area between the device and the ground, thus greatly increasing the firmness of the device and the ease of construction. Stability.

The upper side wall of the hollow block 2 is fixedly connected with the tower 3, the upper end of the tower 3 is fixedly connected with the fixed block 4, the side wall of the fixed block 4 is installed with the control room 5, and the side walls on both sides of the fixed block 4 are fixedly connected with Balance arm 6 and lifting arm 7. The lower side wall of balance arm 6 is fixedly connected with an adjustment box 8. The lower side wall of the adjustment box 8 is connected with a counterweight 9 through an adjustment mechanism. The adjustment mechanism includes a movable penetrating lower side of the adjustment box 8. The worm gear 13 is installed on the wall of the adjusting box 8. The lower side wall of the worm gear 13 is fixedly connected to a fixed frame 14. The lower side wall of the fixed frame 14 is connected to an extension rod fixedly connected to the surface of the counterweight block 9 through a telescopic mechanism. 15. The telescopic mechanism includes a motor 33 fixedly connected to the top wall of the fixed frame 14. The end of the output shaft of the motor 33 is fixedly connected with a screw rod 34 that movable penetrates the lower side wall of the fixed frame 14 and the upper end of the extension rod 15. The extension rod 15 There are two guide rods 35 fixedly connected between the upper end and the fixed frame 14. The control motor 33 drives the screw rod 34 to rotate, which can drive the extension rod 15 to move axially along the outer walls of the two guide rods 35, thereby driving the assembly. The weight 9 moves to adjust the distance between it and the fixed frame 14, thereby increasing the adjustable range of the counterweight 9.

Both sides of the worm gear 13 are meshed with a worm 16 installed in the adjustment box 8. The outer wall of each worm 16 is fixed with a gear 17. The inner top wall of the adjustment box 8 is fixedly connected with a motor 18. The end of the output shaft of the motor 18 is fixedly connected with the gear 2 19 that meshes with the two gears 17. When in use, the motor 18 is started to drive the gear 2 19 to rotate, and then the two gears 17 meshed with it are used to rotate simultaneously. Rotate in the direction, and drive the worm wheel 13 to rotate through the two worms 16, and adjust the position of the counterweight 9 so as to be applicable to more environments and increase the use range of the device.

The lower side wall of the lifting arm 7 is provided with a moving block 10. The lower side wall of the moving block 10 is connected to a buffer block 11 through a pull rope and a pull ring. The lower side wall of the buffer block 11 is connected to a draw hook 12, and the draw hook 12 and the buffer block are connected. A buffering mechanism is provided between the hooks 11. The buffering mechanism includes a connecting block fixedly connected to the upper end of the hook 12. The upper side wall of the connecting block is fixedly connected to a buffering rod 25 slidably inserted into the lower sidewall of the buffering block 11, and the connecting block and the buffering A buffer spring 26 is commonly connected between the blocks 11. The upper end of the buffer rod 25 is fixedly connected to a toothed plate 28 through a mounting block 27. The side walls on both sides of the mounting block 27 are frosted and are slidably attached to the inner wall of the buffer block 11. On the other hand, the friction resistance between the side wall of the mounting block 27 and the inner wall of the buffer block 11 is increased.

The front side of the tooth plate 28 is meshed with gear three 29 installed in the buffer block 11. Coil springs 30 are commonly connected between both sides of the gear three 29 and the inner wall of the buffer block 11. When the lifting arm 7 is lifting objects At this time, the object is hung on the hook 12, and then the staff rolls up the pull rope through the control room 5 to lift the object. Under the gravity of the object, the buffer rod 25 can be pulled to drive the installation block 27 to move down and The tooth plate 28 is driven to move downward, and then the gear three 29 meshed with it is driven to rotate, causing the coil spring 30 to elastically deform, and the reaction force of the coil spring 30 is used, as well as between the side wall of the installation block 27 and the inner wall of the buffer block 11 Under the frictional resistance between the lifting objects, the buffering effect on the lifting objects is achieved.

It should be further explained that the above-mentioned fixed connection, unless otherwise explicitly stipulated and limited, should be understood in a broad sense. For example, it may be welding, gluing, or one-piece molding and other common means well known to those skilled in the art.

The above are only preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person familiar with the technical field can, within the technical scope disclosed in the present invention, implement the technical solutions of the present invention. Equivalent substitutions or changes of the inventive concept thereof shall be included in the protection scope of the present invention.

Claims (8)

1. A tower lifting device, including a base (1), characterized in that a hollow block (2) is fixedly connected to the upper side wall of the base (1), and the outer wall of the hollow block (2) A support mechanism is provided, a tower (3) is fixedly connected to the upper side wall of the hollow block (2), and a fixed block (4) is fixedly connected to the upper end of the tower (3). The fixed block (4) A control room (5) is installed on the side wall of the fixed block (4). A balance arm (6) and a lifting arm (7) are respectively fixedly connected to the side walls of the fixed block (4). The lower side of the balance arm (6) An adjustment box (8) is fixedly connected to the wall. The lower side wall of the adjustment box (8) is connected with a counterweight block (9) through an adjustment mechanism. The lower side wall of the lifting arm (7) is provided with a moving block ( 10), the lower side wall of the moving block (10) is connected to a buffer block (11) through a pull cord and a pull ring, and the lower side wall of the buffer block (11) is connected to a draw hook (12), and the draw hook (12) A buffer mechanism is provided between 12) and the buffer block (11). 2. A tower hoisting device according to claim 1, characterized in that the adjustment mechanism includes a worm gear (13) that movable penetrates the lower side wall of the adjustment box (8) and is installed in the adjustment box (8). ), the lower side wall of the worm gear one (13) is fixedly connected to a fixed frame (14), and the lower side wall of the fixed frame (14) is connected to an extension fixedly connected to the surface of the counterweight block (9) through a telescopic mechanism Rod (15), both sides of the worm gear (13) are meshed with a worm gear (16) installed in the adjustment box (8), and the outer wall of each worm gear (16) is fixed with a gear. One (17), the inner top wall of the adjustment box (8) is fixedly connected to a motor (18), and the end of the output shaft of the motor (18) is fixedly connected to a gear that meshes with the two gears (17). Gear Two(19). 3. A tower hoisting device according to claim 1, characterized in that the support mechanism includes a second motor (20) fixedly connected to the inner bottom wall of the hollow block (2), and the second motor (20) The output shaft of 20) is vertically upward and fixedly connected with a second worm (21). The outer side of the second worm (21) is engaged with a plurality of second worm gears installed in the hollow block (2) and penetrating the inner wall of the hollow block (2). (22), the side wall of each of the two worm gears (22) away from the hollow block (2) is fixedly connected with a right-angle frame (23), and the lower end of each of the right-angle frames (23) is fixedly connected with a pad. Seat(24). 4. A tower lifting device according to claim 1, characterized in that the buffer mechanism includes a connecting block fixedly connected to the upper end of the draw hook (12), and the upper side wall of the connecting block is fixedly connected with a sliding A buffer rod (25) is inserted on the lower side wall of the buffer block (11), and a buffer spring (26) is jointly connected between the connecting block and the buffer block (11). The upper end of the buffer rod (25) passes through the mounting block. (27) A toothed plate (28) is fixedly connected. The front side of the toothed plate (28) is meshed with gear three (29) installed in the buffer block (11). Both sides of the gear three (29) are with Coil springs (30) are commonly connected to the inner walls of the buffer block (11). 5. A tower hoisting device according to claim 2, characterized in that the telescopic mechanism includes three motors (33) fixedly connected to the top wall of the fixed frame (14), and the three motors (33) ) is fixedly connected to the end of the output shaft with a screw rod (34) that movable penetrates the lower side wall of the fixed frame (14) and the upper end of the extension rod (15). The upper end of the extension rod (15) and the fixed frame (14) are connected to each other. The fixed connection has two guide rods (35). 6. A tower hoisting device according to claim 1, characterized in that a plurality of counterweights (31) are fixedly embedded in the base (1). 7. A tower hoisting device according to claim 3, characterized in that a diagonal rod (32) is fixedly connected to the right angle of each right-angle frame (23). 8. A tower hoisting device according to claim 1, characterized in that the side walls on both sides of the installation block (27) are frosted and are slidably attached to the inner wall of the buffer block (11). superior.