CN210340152U

CN210340152U - Be applied to balanced balance arm of being convenient for adjust length of tower crane

Info

Publication number: CN210340152U
Application number: CN201921024788.4U
Authority: CN
Inventors: 冯亮
Original assignee: Jinan Jinkui Construction Machinery Co Ltd
Current assignee: Jinan Jinkui Construction Machinery Co Ltd
Priority date: 2019-07-03
Filing date: 2019-07-03
Publication date: 2020-04-17
Anticipated expiration: 2029-07-03

Abstract

The utility model discloses a be applied to balanced balance arm of being convenient for adjust length of tower crane relates to hoisting machinery, which comprises a bracket, the below of support is provided with the counter weight body, and the support upper surface is located one end position department and is provided with the fixed block, the support upper surface is provided with the cogged rail, and the top of support is provided with the motor, the inside of support is provided with the movable plate, the one end of motor is provided with the gear. The utility model provides an in the prior art because of the fixed technical problem who brings that the balanced effect is not good, balanced heavy gross weight is heavy partially of placing of the counter weight body, drive the movable plate through the motor and move on the support, can adjust the length of balance arm to realize the balance adjustment, can play the effect of fixed positioning through the fixing of round pin post and pore, avoid appearing the problem that the slip leads to the accident to take place, effectual safety protection that has increased.

Description

Be applied to balanced balance arm of being convenient for adjust length of tower crane

Technical Field

The utility model relates to a hoisting machinery specifically is a be applied to balanced balance arm of being convenient for adjust length of tower crane.

Background

The tower crane is a rotary crane with a movable arm arranged at the upper part of a high tower body. The working range is large, and the method is mainly used for vertical transportation of materials and component installation in multi-storey and high-rise building construction. The device consists of a metal structure, a working mechanism and an electrical system. The metal structure comprises a tower body, a movable arm, a base, an attachment rod and the like. The working mechanism has four parts of lifting, amplitude variation, rotation and walking. From the technical development aspect of the tower crane, the electric system comprises a motor, a controller, a power distribution frame, a connecting line, a signal and lighting device and the like, although new products are diversified, the new products are improved in production efficiency, simplicity and convenience in operation, easiness in maintenance and reliability in operation, but the technology of the tower crane is not fundamentally changed. The research of tower cranes is developing towards the combination type. The combined type is that the tower body structure is taken as a core, the tower body is divided into a plurality of parts according to the structural and functional characteristics, and each part is divided into a plurality of modules according to the serialization and generalization requirements and following the module system principle. According to the parameter requirements, proper modules are selected to respectively form the tower cranes with different technical performance characteristics so as to meet the specific requirements of construction. The push combined type tower crane is beneficial to accelerating the development progress of tower crane products, saving the product development cost and better serving customers.

Generally, the distance between the gravity center of the balance arm and the rotation center of the rotation tower body is small, and the balance effect is poor; the total weight of the counterweight of the tower crane is heavy, so that the jacking pressure of the tower crane is high, and the economical efficiency is poor. Therefore, the technical personnel in the field provide a balance arm which is applied to the balance of the tower crane and is convenient for adjusting the length, so as to solve the problems in the prior art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a be applied to balanced balance arm of being convenient for adjust length of tower crane to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a be applied to balanced balance arm of being convenient for adjust length of tower crane, includes the support, the below of support is provided with the counter weight body, and the support upper surface is located one end position department and is provided with the fixed block, the support upper surface is provided with the rack, and the top of support is provided with the motor, the inside of support is provided with the movable plate, the one end of motor sets up the gear, the lower surface embedding of fixed block is provided with fixing device, and one side embedding of fixed block is provided with the box body.

As a further aspect of the present invention: the movable plate comprises a plate body, wherein a fixed seat is arranged on the upper surface of the plate body, sliding blocks are arranged on two sides of the plate body, a track is arranged in the support on one side of the plate body, and a pore channel is formed in the upper surface of the plate body.

As a further aspect of the present invention: the motor is fixed in the fixing base upper surface through the mounting bracket, the outside of fixing base is provided with the rubber cushion, and the fixing base is 10cm than the height length of support.

As a further aspect of the present invention: the fixing device comprises a plate, a hydraulic rod is fixedly connected to the upper surface of the plate, and a pin is arranged on the lower surface of the plate.

As a further aspect of the present invention: the pin columns are arranged in three rows, and each row is not less than 5.

As a further aspect of the present invention: the gear is welded with the transmission end of the motor, and the gear rack is meshed with the motor.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model provides an in the prior art because of the fixed technical problem who brings that the balanced effect is not good, balanced heavy gross weight is heavy partially of placing of the counter weight body, drive the movable plate through the motor and move on the support, can adjust the length of balance arm to realize the balance adjustment, can play the effect of fixed positioning through the fixing of round pin post and pore, avoid appearing the problem that the slip leads to the accident to take place, effectual safety protection that has increased.

Drawings

FIG. 1 is a schematic structural diagram of a balance arm for balancing a tower crane to facilitate length adjustment;

FIG. 2 is a schematic structural view of a movable plate in a balance arm for balancing and conveniently adjusting the length of a tower crane;

fig. 3 is a schematic structural view of a fixing device in a balance arm, which is applied to the balance of a tower crane and is convenient for adjusting the length.

In the figure: 1. a box body; 2. a rack rail; 3. a support; 4. a counterweight body; 5. a gear; 6. a motor; 7. moving the plate; 71. a duct; 72. a slider; 73. a track; 74. a fixed seat; 75. a plate body; 8. a fixing device; 81. a pin; 82. a plate block; 83. a hydraulic lever; 9. and (5) fixing blocks.

Detailed Description

Please refer to fig. 1-3, in the embodiment of the present invention, an embodiment of a balance arm for balancing a tower crane and adjusting the length conveniently, includes a support 3, a counterweight 4 is disposed below the support 3, a fixing block 9 is disposed at one end of the upper surface of the support 3, a rack 2 is disposed on the upper surface of the support 3, a motor 6 is disposed above the support 3, a moving plate 7 is disposed inside the support 3, a gear 5 is disposed at one end of the motor 6, a fixing device 8 is disposed in the lower surface of the fixing block 9, and a box body 1 is disposed in one side of the fixing block 9.

In fig. 2: the moving plate 7 comprises a plate body 75, a fixed seat 74 is arranged on the upper surface of the plate body 75, sliding blocks 72 are arranged on two sides of the plate body 75, a track 73 is arranged on one side of the plate body 75 and located inside the support 3, a hole 71 is formed in the upper surface of the plate body 75, the sliding blocks 72 move inside the track 73 to adjust the moving of the moving plate 7, a motor 6 on the fixed seat 74 provides power for moving, and the hole 71 plays a role in fixing the moving plate 7 for inserting the pin 81.

In fig. 2: motor 6 is fixed in fixing base 74 upper surface through the mounting bracket, and the outside of fixing base 74 is provided with the rubber cushion layer, and fixing base 74 is 10cm than the height length of support 3, and when moving plate 7 removed to the end, fixing base 74 can with the external surface contact of fixed block 9, sets up the rubber cushion and does not harm in order to protect fixing base 74.

In fig. 3: the fixing device 8 comprises a plate 82, a hydraulic rod 83 is fixedly connected to the upper surface of the plate 82, pins 81 are arranged on the lower surface of the plate 82, three rows of the pins 81 are arranged, each row is not less than 5, the plate 82 can be pushed downwards in the extension process of the hydraulic rod 83, and therefore the pins 81 are pushed to holes in the hole channel 71 to be fixed along with the plate 82.

In fig. 1: the gear 5 is welded with the transmission end of the motor 6, the gear 5 rack 2 is meshed with the gear, and the moving plate 7 can be driven to move through the transmission of the gear 5 after the motor 6 operates, so that the balance adjustment of the crane is realized.

The utility model discloses a theory of operation is: firstly, an operator controls the rotation of the motor 6, the transmission end of the motor 6 drives the gear 5 to rotate, the further gear 5 rotates on the meshed toothed rail 2, the sliding blocks 72 on two sides of the moving plate 7 move inside the rail 73, so that the moving plate 7 is driven by the rotation of the motor 6 to move, the counterweight body 4 moves along with the moving plate 7 to adjust the length of the balance arm, when the moving plate 7 moves to the end, the fixed seat 74 can be in contact with the outer surface of the fixed block 9, the rubber pad protects the fixed seat 74 from being damaged, when the moving plate moves to a required position, the hydraulic rod 83 is controlled to extend, the plate 82 is pushed downwards in the extension process of the hydraulic rod 83, and the pin 81 is fixed along with the pushing of the plate 82 to a hole in the duct 71.

The above-mentioned, 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. The utility model provides a be applied to balanced balance arm of being convenient for adjust length of tower crane, includes support (3), its characterized in that, the below of support (3) is provided with the counter weight body (4), and support (3) upper surface is located one end position department and is provided with fixed block (9), support (3) upper surface is provided with rack (2), and the top of support (3) is provided with motor (6), the inside of support (3) is provided with movable plate (7), the one end of motor (6) sets up gear (5), the lower surface embedding of fixed block (9) is provided with fixing device (8), and the one side embedding of fixed block (9) is provided with box body (1).

2. The balance arm applied to the balance of the tower crane and convenient for length adjustment according to claim 1, wherein the moving plate (7) comprises a plate body (75), a fixed seat (74) is arranged on the upper surface of the plate body (75), sliders (72) are arranged on two sides of the plate body (75), a track (73) is arranged inside the bracket (3) on one side of the plate body (75), and a hole (71) is arranged on the upper surface of the plate body (75).

3. The balance arm applied to the balance of the tower crane and convenient for length adjustment according to claim 2, wherein the motor (6) is fixed on the upper surface of the fixed seat (74) through a mounting frame, a rubber cushion layer is arranged on the outer side of the fixed seat (74), and the fixed seat (74) is 10cm longer than the height of the support (3).

4. The balance arm applied to the balance of the tower crane and convenient for length adjustment according to claim 1, wherein the fixing device (8) comprises a plate block (82), a hydraulic rod (83) is fixedly connected to the upper surface of the plate block (82), and a pin (81) is arranged on the lower surface of the plate block (82).

5. The balance arm applied to the tower crane for balancing and adjusting the length is characterized in that the pin columns (81) are arranged in three rows, and each row is not less than 5.

6. The balance arm applied to the balance of the tower crane and convenient for length adjustment according to claim 1, wherein the gear (5) is welded at the transmission end of the motor (6), and the rack (2) of the gear (5) is meshed with the rack.