CN220265042U - Rotary electric crane arm - Google Patents

Abstract

The utility model discloses a rotary electric crane arm, which comprises a device body, wherein the device body comprises a stand column and an electric crane, a movable rod is inserted into the stand column, one side of the top of the movable rod is fixed with a cross rod, two groups of rack rods are symmetrically arranged on the cross rod, the electric crane is movably positioned at the lower end of the cross rod, the upper end of the electric crane is fixed with a movable box, the bottom of the electric crane is provided with a hook piece, a threaded rod is rotatably arranged in the stand column, the movable rod is in threaded connection with the threaded rod, the bottom of the threaded rod is connected with a driving assembly, the movable box is sleeved on the cross rod, and two groups of main gears and two groups of auxiliary gears are arranged in the movable box.

Description

Rotary electric crane arm

Technical Field

The utility model relates to the technical field of crane arms, in particular to a rotary electric crane arm.

Background

The crane is a crane, is commonly installed in workshops or places where articles need to be lifted, and can be divided into a vertical crane and a rotary crane according to the movement form of the crane, wherein the crane usually consists of a guide rail and an electric hoist, the guide rail is divided into a vertical guide rail and a horizontal guide rail, the rotary crane is generally divided into a crane arm and a base, and the bottom end of the crane arm is rotationally connected to the base;

the prior art has the following publication numbers: the utility model patent of CN 210885000U provides a portable rotary arm crane which comprises a first rod piece, a second rod piece, a connecting piece and a crane box; the crane box is controlled by the travel motor to control the sliding distance of the second rod piece, accurate control of the moving distance of the second rod piece is achieved through the travel motor, but the travel motor body is long, the occupied transverse space is large, the moving travel of the crane box is limited, the moving distance is shortened, the length of the second rod body is large, stability between the second rod body and the first rod body is poor when the crane box moves, the second rod body is prone to bending fracture and other problems, meanwhile, the crane box does not have the height adjusting capability for the first rod body, the position of the second rod body cannot be adjusted according to the field environment and the installation and use requirements when the crane box is used, the use scene and the use range of the crane box are limited, and therefore, the crane box is required to be upgraded and modified on the basis of the prior art.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a rotary electric crane arm, which can realize the height adjustment and the rotary adjustment of the crane arm, is convenient for the crane arm to adapt to construction sites with different height requirements and multi-angle hoisting operation, improves the operability of the device, can realize the transverse movement control of the electric crane, has long movement distance and high stability, and is convenient for hoisting the cargoes at different positions.

In order to solve the problems, the following technical scheme is provided:

the utility model provides a rotatory electric crane arm, includes the device body, this internal stand and the electric crane of including of device, peg graft on the stand and have movable rod and movable rod top one side to be fixed with the horizontal pole, the symmetry is provided with two sets of rack bars on the horizontal pole, the electric crane activity is located horizontal pole lower extreme and upper end and is fixed with the removal case, the electric crane bottom is equipped with the couple piece, the stand internal rotation is equipped with the threaded rod, movable rod spiro union is on the threaded rod, the threaded rod bottom is connected with drive assembly, the removal case cover is established on the horizontal pole, be equipped with two sets of master gear and two sets of pinion and master gear and pinion meshing respectively in two sets of rack bars outsides, one side be connected with the walking motor on the master gear, the walking motor drive pot head is equipped with belt and belt other end transmission connection opposite side master gear.

Further, a rotating base is arranged at the bottom of the upright post.

Further, the guide groove is formed in the inner wall of the upright post, and the guide rod is arranged on the outer side of the movable rod and is slidably positioned in the guide groove.

Further, the driving assembly comprises a first motor and a worm wheel, the worm is fixed at the driving end of the first motor, and the worm wheel is fixed at the bottom of the threaded rod and meshed with the worm.

Further, four groups of moving wheels are arranged in the moving box, and the moving wheels roll to be located right above the cross rod.

Further, a lantern ring is movably sleeved on the upright post, one side of the lantern ring is connected with an inclined strut, and the other end of the inclined strut is fixed with the cross rod.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the upright post, the movable rod, the threaded rod, the guide rod, the driving assembly and the rotating base are arranged in the device, when in use, the threaded rod is controlled to rotate through the driving assembly, the threaded rod pushes the upright post to lift along the guide rod, and the upright post and the cross rod are controlled to rotate through the rotating base, so that the height adjustment and the rotating adjustment of the crane arm can be realized, the crane arm is convenient to adapt to construction sites with different height requirements and multi-angle hoisting operation, the operability of the device is improved, and the problem that the crane arm is easy to limit when in use due to the fixed height and angle of the crane arm is avoided.

2. According to the utility model, the rack bar, the moving box, the main gear, the auxiliary gear, the walking motor and the moving wheel are arranged in the device, when the device is used, the main gear is driven by the walking motor to rotate the main gear to move on the rack bar and drive the moving box to move, the moving box moves on the cross bar through the moving wheel, so that the transverse movement control of the electric crane can be realized, the moving distance is long, the stability is high, the lifting operation of cargoes at different positions is convenient, and the applicability of the device is improved.

Specific embodiments of the utility model are disclosed in detail below with reference to the following description and drawings, indicating the manner in which the principles of the utility model may be employed. It should be understood that the embodiments of the utility model are not limited in scope thereby. The embodiments of the utility model include many variations, modifications and equivalents within the spirit and scope of the appended claims.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic view of the overall construction of a rotary electric crane arm according to the present utility model;

FIG. 2 is a partially exploded view of a rotary electric crane arm according to the present utility model;

FIG. 3 is a cross-sectional view of a mast structure of a rotary electric crane arm according to the present utility model;

fig. 4 is an exploded view of a traveling case structure of a rotary electric crane arm according to the present utility model.

In the figure: 1. a device body; 2. a column; 3. a movable rod; 4. a cross bar; 5. an electric crane; 6. a moving case; 7. a rack bar; 8. a hook member; 9. a rotating base; 10. a guide groove; 11. a guide rod; 12. a threaded rod; 13. a drive assembly; 131. a first motor; 132. a worm wheel; 133. a worm; 14. a main gear; 15. a pinion gear; 16. a walking motor; 17. a belt; 18. a moving wheel; 19. a diagonal brace; 20. a collar.

Detailed Description

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

As shown in fig. 1-4, the rotary electric crane arm provided by the embodiment comprises a device body 1, wherein the device body 1 comprises a stand column 2 and an electric crane 5, a movable rod 3 is inserted on the stand column 2, one side of the top of the movable rod 3 is fixed with a cross rod 4, two groups of rack rods 7 are symmetrically arranged on the cross rod 4, the electric crane 5 is movably positioned at the lower end and the upper end of the cross rod 4, a movable box 6 is fixed at the upper end of the electric crane 5, a hook piece 8 is arranged at the bottom of the electric crane 5, a threaded rod 12 is rotationally arranged on the stand column 2, the movable rod 3 is in threaded connection with the threaded rod 12, a driving assembly 13 is connected at the bottom of the threaded rod 12, the movable box 6 is sleeved on the cross rod 4, two groups of main gears 14 and two groups of auxiliary gears 15 are respectively meshed with the main gears 14 and the auxiliary gears 15 at the outer sides of the two groups of rack rods 7, one side of the main gears 14 is connected with a travelling motor 16, a belt 17 is sleeved at the driving end of the travelling motor 16, and the other end of the belt 17 is in transmission connection with the main gears 14 at the other side.

Preferably, the column 2 bottom is provided with swivel mount 9, is convenient for support and rotation control to column 2, conveniently hoist and mount the goods in different positions simultaneously.

Preferably, the guide groove 10 is formed in the inner wall of the upright post 2, the guide rod 11 is arranged on the outer side of the movable rod 3, the guide rod 11 is slidably arranged in the guide groove 10, and the movable rod 3 is conveniently guided through the guide rod 11 and the guide groove 10 so as to keep vertical movement.

Preferably, the driving assembly 13 comprises a first motor 131 and a worm gear 132, the worm 133 is fixed at the driving end of the first motor 131, the worm gear 132 is fixed at the bottom of the threaded rod 12 and is meshed with the worm 133, the worm 132 and the worm gear 133 are driven to rotate by the first motor 131, the threaded rod 12 can be driven to rotate, and the movable rod 3 can be driven to move up and down conveniently.

Preferably, four groups of moving wheels 18 are arranged in the moving box 6, and the moving wheels 18 roll to be located right above the cross rod 4, so that the moving box 6 can be conveniently moved and supported.

Preferably, the movable sleeve is provided with a lantern ring 20 on the upright post 2, one side of the lantern ring 20 is connected with an inclined strut 19, the other end of the inclined strut 19 is fixed with the cross rod 4, connection and support between the upright post 2 and the cross rod 4 are facilitated, and one side hoisting stability of the cross rod 4 is improved.

The application principle and the application flow of the utility model are as follows: when the movable lifting device is used, the first motor 131 is controlled to work through an external power supply, the first motor 131 drives the worm 133 and the worm wheel 132 with one meshed side to rotate, the worm wheel 132 drives the threaded rod 12 to rotate and drives the movable rod 3 to move through the threaded rod 12, the movable rod 3 ascends and descends along the direction of the guide rod 11 and enables the cross rod 4 to be at a proper height, the rotating base 9 can be controlled to work and drive the upright post 2 to rotate to a proper angle at the moment, then the traveling motor 16 is controlled to work, the traveling motor 16 and the belt 17 drive the two groups of main gears 14 to rotate, the main gears 14 move on the rack rod 7 and drive the movable box 6 to synchronously move, the auxiliary gears 15 keep balance on the other side, the movable box 6 moves on the cross rod 4 under the action of the movable wheels 18, and the electric lifting machine 5 synchronously moves to a designated position to work through the hook piece 8.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to specific circumstances.

Claims (6)

1. A rotary electric crane arm, characterized in that: including device body (1), including stand (2) and electric crane (5) in device body (1), peg graft on stand (2) have movable rod (3) and movable rod (3) top one side is fixed with horizontal pole (4), the symmetry is provided with two sets of rack bars (7) on horizontal pole (4), electric crane (5) activity is located horizontal pole (4) lower extreme and upper end and is fixed with movable box (6), electric crane (5) bottom is equipped with couple spare (8), stand (2) internal rotation is equipped with threaded rod (12), movable rod (3) spiro union is on threaded rod (12), threaded rod (12) bottom is connected with drive assembly (13), movable box (6) cover is established on horizontal pole (4), be equipped with two sets of master gear (14) and two sets of pinion (15) and master gear (14) and pinion (15) respectively mesh in two sets of rack bars (7) outsides, one side be connected with on master gear motor (14) master gear (16), the other end is connected with drive belt (17) other end (16), drive belt (17) are connected.

2. A rotary electric crane arm according to claim 1, characterized in that the bottom of the upright (2) is provided with a swivel base (9).

3. The rotary electric crane arm according to claim 1, wherein the inner wall of the upright (2) is provided with a guide groove (10), the outer side of the movable rod (3) is provided with a guide rod (11), and the guide rod (11) is slidably positioned in the guide groove (10).

4. A rotary electric crane arm according to claim 1, characterized in that the drive assembly (13) comprises a first motor (131) and a worm wheel (132), the first motor (131) driving end being fixed with a worm (133), the worm wheel (132) being fixed at the bottom of the threaded rod (12) and engaging with the worm (133).

5. A rotary electric crane arm according to claim 1, characterized in that four sets of moving wheels (18) are provided in the moving box (6), the moving wheels (18) rolling over the cross bar (4).

6. A rotary electric crane arm according to claim 1, characterized in that the upright (2) is movably sleeved with a collar (20), one side of the collar (20) is connected with a diagonal brace (19), and the other end of the diagonal brace (19) is fixed with the cross bar (4).