CN219058369U

CN219058369U - Tower crane boom

Info

Publication number: CN219058369U
Application number: CN202223435158.0U
Authority: CN
Inventors: 龚盛
Original assignee: Guangdong Dagong Craftsman Engineering Technology Co ltd
Current assignee: Guangdong Dagong Craftsman Engineering Technology Co ltd
Priority date: 2022-12-21
Filing date: 2022-12-21
Publication date: 2023-05-23
Anticipated expiration: 2032-12-21

Abstract

The utility model relates to the technical field of tower crane booms, and discloses a tower crane boom which comprises a first boom, wherein an installation plate is fixedly connected to one side end face of the first boom, a telescopic cavity is formed in the first boom, a second servo motor is arranged at one corner of the front end face of the first boom, the output end of the second servo motor stretches into the telescopic cavity and is fixedly connected with a gear, and sliding grooves are formed in two sides of the upper end of the telescopic cavity. According to the utility model, the second crane arm is slidably connected in the first crane arm, the second servo motor is arranged on one side of the first crane arm, the output end of the second servo motor is fixedly connected with the gear, the gear is in meshed connection with the rack at the upper end of the second crane arm, and the second crane arm can be controlled to slide in the first crane arm by driving the gear to rotate through the second servo motor, so that the length of the crane arm is changed, the working radius is reduced, and the use limitation of the tower crane is reduced.

Description

Tower crane boom

Technical Field

The utility model relates to the technical field of tower crane booms, in particular to a tower crane boom.

Background

The tower crane is called tower crane and tower crane for short, has large operation space and is generally used for vertical and horizontal conveying of materials and installation of building components in house building construction. The tower crane mainly comprises a metal structure, a working mechanism and an electric system. The crane boom is an important device on the crane.

In use, the conventional tower crane boom is designed integrally, a sports car is arranged on the boom, the lower end of the sports car is provided with a lifting hook, the distance between a lifting load and the tower crane is changed by moving the sports car on the boom, and the length of the lifting boom is constant in such a way, so that in use, no obstacle can be arranged in the working area with the boom as the radius, and the use limitation of the tower crane is improved. Accordingly, one skilled in the art would provide a tower crane boom that addresses the problems set forth in the background above.

Disclosure of Invention

The utility model aims to solve the defects in the prior art, and provides a tower crane boom, wherein the boom of the device is of a separated design, a second boom is connected in a sliding manner in a first boom, one side of the first boom is provided with a second servo motor, the output end of the second servo motor is fixedly connected with a gear, the gear is meshed with a rack at the upper end of the second boom, and the second boom can be controlled to slide in the first boom by driving the gear to rotate through the second servo motor, so that the length of the boom is changed, the working radius is reduced, and the use limitation of the tower crane is reduced.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a tower crane boom, includes first boom, one side terminal surface fixedly connected with mounting panel of first boom, the inside of first boom is provided with flexible chamber, the preceding terminal surface one corner department of first boom is provided with the second servo motor, the output of second servo motor stretches into flexible chamber and fixedly connected with gear, the spout has all been seted up to the upper end both sides of flexible chamber, two the spout has the second boom through slide bar sliding connection, the upper end middle part fixedly connected with rack of second boom, lower extreme one side of first boom is provided with first servo motor through the connecting plate, the output of first servo motor runs through the connecting plate and fixedly connected with wire winding roller, lower extreme one side of second boom is provided with the fixed plate, the lower terminal surface middle part fixedly connected with fixed sleeve of fixed plate;

through above-mentioned technical scheme, the jib loading boom of the device is the design of disconnect-type, second jib loading boom sliding connection is in the inside of first jib loading boom, one side at first jib loading boom is provided with second servo motor, the output fixedly connected with gear of second servo motor, the gear is connected with the rack meshing of second jib loading boom upper end, drive the gear through second servo motor and rotate can control the second jib loading boom and slide in first jib loading boom, thereby change the length of jib loading boom, working radius has been reduced, the use limitation of tower crane has been reduced.

Further, a plurality of mounting holes are uniformly formed in the outer side of one side end face of the mounting plate at intervals;

through above-mentioned technical scheme, through a plurality of mounting holes that set up, improve the installation convenience.

Further, the rack is in meshed connection with the gear;

through above-mentioned technical scheme, through both meshing connection, drive the second jib loading boom and remove.

Further, clamping grooves are formed in two sides of the lower end face of the second crane arm, and the two clamping grooves are connected with the first crane arm in a sliding mode;

through the technical scheme, through the sliding connection of the two, the moving stability of the second crane arm is improved.

Further, one end of the telescopic cavity is provided with a buffer cushion;

through the technical scheme, the buffer effect is achieved through the arranged buffer pad.

Further, four screws are uniformly arranged at intervals on the outer side of the lower end of the fixing plate;

through above-mentioned technical scheme, improve the installation through the screw and dismantle the convenience.

Further, the cushion pad is made of a rubber material;

by the technical scheme, the material has higher buffering performance.

Further, the inner wall of the fixed sleeve is provided with a round angle;

through above-mentioned technical scheme, reduce the loss rate of lifting rope through the fillet that sets up.

The utility model has the following beneficial effects:

1. according to the tower crane boom provided by the utility model, the boom of the device is of a separated design, the second boom is slidably connected in the first boom, one side of the first boom is provided with the second servo motor, the output end of the second servo motor is fixedly connected with the gear, the gear is meshed with the rack at the upper end of the second boom, and the second boom can be controlled to slide in the first boom by driving the gear to rotate through the second servo motor, so that the length of the boom is changed, the working radius is reduced, and the use limitation of the tower crane is reduced.

2. According to the tower crane boom provided by the utility model, the mounting plate is arranged on one side of the first boom, the mounting plate is provided with the plurality of mounting holes, so that the mounting convenience of the boom is improved, the fixed sleeve at the lower end of the second boom is connected with the second boom through the screw on the fixed plate, the fixed sleeve can be replaced according to different lifting ropes, and the use convenience is improved.

Drawings

Fig. 1 is a schematic perspective view of a tower crane boom according to the present utility model;

fig. 2 is a schematic bottom perspective view of a crane boom of a tower crane according to the present utility model;

fig. 3 is a schematic diagram of an internal structure of a tower crane boom according to the present utility model;

fig. 4 is an enlarged view at a in fig. 2.

Legend description:

1. a first servo motor; 2. a second servo motor; 3. a chute; 4. a rack; 5. a slide bar; 6. a first crane arm; 7. a mounting hole; 8. a mounting plate; 9. a connecting plate; 10. a wire winding roller; 11. a clamping groove; 12. a cushion pad; 13. a telescopic chamber; 14. a gear; 15. a fixing plate; 16. a screw; 17. a fixed sleeve; 18. a second boom; 19. and (5) rounding.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, one embodiment provided by the present utility model is: the tower crane boom comprises a first crane boom 6, wherein one side end surface of the first crane boom 6 is fixedly connected with a mounting plate 8, a telescopic cavity 13 is arranged in the first crane boom 6, a second servo motor 2 is arranged at one corner of the front end surface of the first crane boom 6, the output end of the second servo motor 2 stretches into the telescopic cavity 13 and is fixedly connected with a gear 14, both sides of the upper end of the telescopic cavity 13 are provided with sliding grooves 3, both sliding grooves 3 are slidably connected with a second crane boom 18 through a sliding rod 5, the middle part of the upper end of the second crane boom 18 is fixedly connected with a rack 4, one side of the lower end of the first crane boom 6 is provided with a first servo motor 1 through a connecting plate 9, the output end of the first servo motor 1 penetrates through the connecting plate 9 and is fixedly connected with a wire collecting roller 10, the lower extreme one side of second jib loading boom 18 is provided with fixed plate 15, fixed sleeve 17 is fixedly connected with in the middle part of the lower terminal surface of fixed plate 15, the jib loading boom of the device is the design of disconnect-type, second jib loading boom 18 sliding connection is in the inside of first jib loading boom 6, one side at first jib loading boom 6 is provided with second servo motor 2, the output fixedly connected with gear 14 of second servo motor 2, gear 14 is connected with rack 4 meshing of second jib loading boom 18 upper end, it slides in first jib loading boom 6 to drive gear 14 rotation through second servo motor 2, thereby change the length of jib loading boom, working radius has been reduced, the use limitation of tower crane has been reduced.

A plurality of mounting holes 7 are uniformly spaced apart from the outer side of one side end face of the mounting plate 8, mounting convenience is improved through the plurality of mounting holes 7, rack 4 is connected with gear 14 in a meshed mode, through the meshing connection of the rack 4 and the gear 14, the second crane arm 18 is driven to move, clamping grooves 11 are formed in two sides of the lower end face of the second crane arm 18, two clamping grooves 11 are slidably connected with the first crane arm 6, moving stability of the second crane arm 18 is improved through the sliding connection of the two clamping grooves, a buffer pad 12 is arranged at one end of the telescopic cavity 13, a buffer effect is achieved through the buffer pad 12, four screws 16 are uniformly spaced apart from the outer side of the lower end of the fixing plate 15, mounting and dismounting convenience is improved through the screws 16, the buffer pad 12 is made of rubber materials, the material has higher buffer performance, round corners 19 are arranged on the inner walls of the fixing sleeves 17, and loss speed of a lifting rope is reduced through the round corners 19.

Working principle: when the crane arm of the device is in a separated design, the second crane arm 18 is in sliding connection with the inside of the first crane arm 6, one side of the first crane arm 6 is provided with the second servo motor 2, the output end of the second servo motor 2 is fixedly connected with the gear 14, the gear 14 is meshed with the rack 4 at the upper end of the second crane arm 18, the second crane arm 18 can be controlled to slide in the first crane arm 6 by driving the gear 14 to rotate through the second servo motor 2, so that the length of the crane arm is changed, the working radius is reduced, the use limitation of a tower crane is reduced, the device is provided with the mounting plate 8 at one side of the first crane arm 6, a plurality of mounting holes 7 are formed in the mounting plate 8, the mounting convenience of the crane arm is improved, the fixing sleeve 17 at the lower end of the second crane arm 18 is connected with the second crane arm 18 through the screw 16 on the fixing plate 15, and the fixing sleeve 17 can be replaced according to different crane ropes, and the use convenience is improved.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. A tower crane boom comprising a first boom (6), characterized in that: one side end face of the first crane boom (6) is fixedly connected with a mounting plate (8), a telescopic cavity (13) is formed in the first crane boom (6), a second servo motor (2) is arranged at one corner of the front end face of the first crane boom (6), the output end of the second servo motor (2) stretches into the telescopic cavity (13) and is fixedly connected with a gear (14), sliding grooves (3) are formed in two sides of the upper end of the telescopic cavity (13), the two sliding grooves (3) are slidably connected with a second crane boom (18) through sliding rods (5), and racks (4) are fixedly connected with the middle part of the upper end of the second crane boom (18);

the lower extreme one side of first jib loading boom (6) is provided with first servo motor (1) through connecting plate (9), the output of first servo motor (1) runs through connecting plate (9) and fixedly connected with take-up roller (10), lower extreme one side of second jib loading boom (18) is provided with fixed plate (15), the lower terminal surface middle part fixedly connected with fixed cover (17) of fixed plate (15).

2. A tower crane boom according to claim 1, characterized in that: a plurality of mounting holes (7) are uniformly formed in the outer side of one side end face of the mounting plate (8) at intervals.

3. A tower crane boom according to claim 1, characterized in that: the rack (4) is meshed with the gear (14).

4. A tower crane boom according to claim 1, characterized in that: clamping grooves (11) are formed in two sides of the lower end face of the second crane arm (18), and the two clamping grooves (11) are slidably connected with the first crane arm (6).

5. A tower crane boom according to claim 1, characterized in that: one end of the telescopic cavity (13) is provided with a buffer pad (12).

6. A tower crane boom according to claim 1, characterized in that: four screws (16) are uniformly arranged at intervals on the outer side of the lower end of the fixing plate (15).

7. A tower crane boom according to claim 5, wherein: the cushion pad (12) is made of a rubber material.

8. A tower crane boom according to claim 1, characterized in that: the inner wall of the fixed sleeve (17) is provided with a round corner (19).