CN211496661U - Upright post lifting type movable gantry crane - Google Patents

Abstract

The utility model relates to a column-lifting mobile gantry crane, which comprises two parallel-arranged columns, a hanging beam mounted on the top of the two columns, and bottom supports respectively arranged at the bottom of each column. The column includes a lower column, and The upper cylinder is telescopically arranged above the lower cylinder, the hoisting beam is installed with a hoisting component, and the hoisting component can move on the suspending beam, the two ends of the bottom support are respectively provided with driving wheels, and the axles of the driving wheels are connected with a driving motor. The inner tooth slewing bearing is arranged above the driving wheel, and a steering motor is arranged above the inner tooth slewing bearing, and the steering motor drives the driving wheel to turn through the inner tooth slewing bearing. The driving wheel of the utility model is driven and steered by two motors, which can realize 360° omnidirectional rotation on the basis of independent walking, solves the problems of limited turning and driving in a narrow space, and can improve the driving wheel Control precision, more convenient to use.

Description

A column lift mobile gantry crane

technical field

The utility model belongs to the technical field of wind energy blade conveying, in particular to a column lift type mobile gantry crane.

Background technique

In the process of moving the wind energy blades, it is necessary to use moving tools such as gantry cranes. The driving wheel system of the traditional gantry crane is mainly completed by the steering gear driving the steering link during the steering process, which can only achieve a steering angle of 45° left and right. When the wind energy blade can transport large workpieces, it has great limitations for turning and driving in a narrow area, and it is extremely inconvenient to use.

Utility model content

The purpose of the utility model is to provide a column lift type mobile gantry crane to solve the problem of limited steering angle.

The column lift type mobile gantry crane of the present utility model is realized as follows:

A column lift-type mobile gantry crane includes two parallel columns, a hanging beam installed on the top of the two columns, and a bottom support respectively arranged at the bottom of each column, the column includes a lower column, and is telescopically arranged On the upper column above the lower column, a hoisting component is installed on the suspending beam, and the hoisting component can move on the suspending beam, and the two ends of the bottom support are respectively provided with driving wheels, so A drive motor is driven and connected to the axle of the driving wheel, an internal gear slewing bearing is arranged above the driving wheel, and a steering motor is arranged above the internal gear slewing bearing, and the steering motor passes through the internal gear slewing bearing. Drive the drive wheel to turn.

Further, a drive wheel bracket is arranged above the inner tooth slewing bearing, and a mounting base plate is arranged above, and the inner ring of the inner tooth slewing bearing is connected to the drive wheel bracket, and the outer ring is connected to the installation base plate. connected.

Further, the driving wheel is mounted on the outer side of the driving wheel bracket, the driving motor is mounted on the inner side of the driving wheel bracket, and the driving motor is connected with the axle of the driving wheel through a reducer I.

Further, the steering motor is installed on the installation bottom plate, and a gear meshing with the inner ring of the internal tooth slewing bearing is arranged below the installation bottom plate, and the steering motor is connected to the Geared connection.

Further, auxiliary universal wheels are oppositely arranged at the front end and the rear end of the drive wheel bracket.

Further, a hydraulic cylinder is arranged in the lower cylinder, and the end of the piston rod of the hydraulic cylinder is connected to the upper cylinder.

Further, the upper end of the lower cylinder is provided with a pin, the surface of the upper cylinder is provided with a pin hole, and the pin can pass through the lower cylinder and extend into the pin hole.

Further, the hoisting assembly includes a hoisting box and a hydraulic rod arranged on one side of the hoisting box, the telescopic direction of the hydraulic rod is the same as the length direction of the hoisting beam, and the hoisting box slides through the telescopic movement of the hydraulic rod. installed on the hanging beam.

Further, shock-proof frames are arranged on both sides of the hoisting box, and damping springs are arranged between the shock-proof frame and the hoisting box.

Further, a cross frame is arranged between the two bottom supports, and a hydraulic system and an electric control box are installed on the cross frame.

After adopting the above-mentioned technical scheme, the beneficial effect that the utility model has is:

(1) The driving wheel of the present utility model adopts two motors to realize walking and steering driving, so that each driving wheel can realize a 360° omnidirectional rotation on the basis of walking alone, which solves the problem of steering and driving in a narrow space. It can improve the control accuracy of the driving wheel, and it is more convenient to use;

(2) The hanging beam of the present utility model can realize height adjustment through the lifting and lowering of the column, so as to realize the random adjustment of the height of the gantry crane according to the needs, reduce the limitation of operation, and increase its scope of application;

(3) The utility model adopts the internal tooth slewing bearing to realize the steering transmission of the driving wheel. Compared with the external tooth slewing bearing with a pass radius, the bearing capacity of the driving wheel system can be increased, thereby ensuring the stability of the driving wheel during steering and walking. sex.

Description of drawings

The present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

Fig. 1 is the structure diagram of the column lift type mobile gantry crane of the preferred embodiment of the present utility model;

2 is a structural diagram of a column lift type mobile gantry crane according to a preferred embodiment of the present invention;

An enlarged view of part A in Figure 2 when Figure 3;

4 is a top view of a column lift type mobile gantry crane according to a preferred embodiment of the present invention;

Fig. 5 is the sectional view of B-B part in Fig. 4;

6 is a structural diagram of a drive wheel system of a column-lifting mobile gantry crane according to a preferred embodiment of the present invention;

7 is a structural diagram of a drive wheel system of a column-lifting mobile gantry crane according to a preferred embodiment of the present invention;

8 is a partial structural exploded view of the drive wheel system of the column lift type mobile gantry crane according to the preferred embodiment of the present invention;

9 is a partial structural exploded view of the drive wheel system of the column lift type mobile gantry crane according to the preferred embodiment of the present invention;

10 is a structural diagram of a drive wheel bracket of a column-lifting mobile gantry crane according to a preferred embodiment of the present invention;

In the figure: column 1, lower column 11, upper column 12, hydraulic cylinder 13, column pin 14, pin hole 15, hanging beam 2, lifting assembly 21, lifting box 22, hydraulic rod 23, pulley 24, reinforcing plate 25 , shock-proof frame 26, damping spring 27, hook 28, bottom support 3, drive wheel 31, drive motor 32, internal gear slewing bearing 33, steering motor 34, drive wheel bracket 35, installation bottom plate 36, top plate 37, side plate 38, end plate 39, side beam 310, mounting hole 311, reducer I312, through hole I313, mounting slot I314, reinforcing rib 315, gear 316, reducer II317, through hole II318, mounting slot II319, auxiliary universal wheel 320 , Auxiliary wheel mounting plate 321, weight reduction hole 322, protective cover 323, cross frame 324, hydraulic system, 325, electric control box 326.

Detailed ways

In order to make the purposes, technical solutions and advantages of the embodiments of the present invention more clear, 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 The embodiments of the present invention are a part of the embodiments of the present invention, but not all of the embodiments.

Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

As shown in Fig. 1-10, a column lift type mobile gantry crane includes two parallel columns 1 and a hanging beam 2 installed on the top of the two columns 1, and bottom supports respectively arranged at the bottom of each column 1 3. The upright column 1 includes a lower column body 11 and an upper column body 12 telescopically arranged above the lower column body 11. A hoisting assembly 21 is installed on the hoisting beam 2, and the hoisting assembly 21 can move on the suspending beam 2, and the bottom supports the 3 The two ends are respectively provided with driving wheels 31, the axle of the driving wheel 31 is connected with a driving motor 32 in a driving manner, an inner gear slewing bearing 33 is arranged above the driving wheel 31, and a steering motor 34 is arranged above the inner gear slewing bearing 33, The steering motor 34 drives the driving wheel 31 to turn through the inner gear slewing bearing 33 .

Preferably, the drive motor 32 and the steering motor 34 are selected as servo motors, whose control precision makes the operation of the gantry crane more convenient during use.

Please refer to Fig. 6-10, the function of the internal tooth slewing bearing 33 is to transmit the torque of the steering motor 34 to the driving wheel 31, thereby driving the driving wheel 31 to steer, and in order to facilitate the installation of the internal tooth slewing bearing 33, The inner gear slewing bearing 33 is provided with a drive wheel bracket 35 above it, and a mounting base plate 36 is arranged above it.

Specifically, the drive wheel mounting frame 35 includes a top plate 37 and a support frame installed under the top plate 37 . The support frame includes a side plate 38 and end plates 39 disposed at both ends of the side plate 38 and disposed between the two end plates 39 And the side beam 310 opposite to the side plate 38 is connected to the top plate 37 .

The support frame composed of the side plates 38 , the end plates 39 and the side beams 310 is perpendicular to the top plate 37 , so that the top plate 37 can be supported and the bearing capacity of the entire drive wheel 31 can be increased.

Preferably, in order to facilitate the installation of the inner gear slewing bearing 33, the mounting bottom plate 36 and the top plate 37 are provided with mounting holes 311 in a ring shape, and the inner ring of the inner gear slewing bearing 33 is mounted on the mounting hole 311 of the top plate 37 through bolts , the outer ring of the inner gear slewing bearing 33 is also mounted on the mounting holes 311 of the mounting base plate 36 by bolts.

In order to provide driving force to the drive wheel 31, the internal gear slewing bearing is installed on the outside of the drive wheel bracket 35, and the drive motor 32 is installed on the inside of the drive wheel bracket 35, and the drive motor 32 is connected to the drive wheel 31 through the reducer I312. connected to the axles.

Specifically, the drive wheel 31 is installed on the outside of the side plate 38, and the reducer I312 is installed inside the inner support frame of the side plate 38, which can relatively reduce the space occupied by the entire drive wheel system, and is more convenient to install and use.

Preferably, in order to improve the running stability and bearing capacity of the driving wheel 31, the reducer I312 is an L-shaped planetary reducer. The L-type planetary reducer is a three-stage high reduction ratio reducer, which can increase the stability of the driving wheel.

Preferably, the side plate 38 is provided with a through hole I313, the periphery of the through hole I313 is provided with a mounting slot I314, the reducer I312 is installed in the mounting slot I314, and its output end is connected to the axle of the driving wheel 31 through the through hole I313 .

The mounting bottom plate 36 is fixed on the end of the bottom support 3, and a number of reinforcing ribs 315 are arranged at the connection to prevent deformation.

In order to realize the steering of the driving wheel 31 , the steering motor 34 is installed on the installation base plate 36 , and a gear 316 is arranged below the installation base plate 36 that meshes with the inner ring of the internal gear slewing bearing 33 . The steering motor 34 is connected to the gear through the reducer II 317 316 drive connection.

The rotation of the steering motor 34 drives the rotation of the reducer II 317, and then drives the rotation of the gear 316 through the reducer II 317. In order to realize the connection between the reducer II 317 and the gear 316, the mounting base plate 36 is provided with a through hole II 318, the output end of the reducer II 317 It is connected to the gear 316 through the through hole II 318 .

Preferably, in order to facilitate the fixing of the reducer II 317 and the steering motor 34, the outer ring of the through hole II 318 is provided with an annular installation groove II 319, and the reducer II 317 is installed in the installation groove II 319.

Specifically, in this embodiment, the steering motor 34 is installed above the reducer II 317 , and the reducer II 317 is fixed in the installation groove II 319 by bolts, thereby realizing the fixing of the steering motor 34 and the reducer II 317 .

In addition, the reducer II37 can also choose the L-type planetary reducer.

In order to increase the bearing capacity of the entire driving wheel system and the stability during steering and walking, auxiliary universal wheels 320 are arranged at the front and rear ends of the driving wheel bracket 35 opposite to each other.

Specifically, an auxiliary wheel mounting plate 321 is provided on the outer side of the end plate 39 , and the auxiliary universal wheel 320 is mounted on the bottom of the auxiliary road mounting plate 321 .

The two auxiliary universal wheels 320 are symmetrical with respect to the installation points of the driving wheels 31, so that they can play a good auxiliary role in the steering and walking of the driving wheels 31, and further ensure the stability of the whole driving wheel system.

Preferably, the auxiliary wheel mounting plate 321 is perpendicular to the end plate 39 .

In order to increase the stability of the connection between the auxiliary wheel mounting plate 321 and the end plate 39 and prevent deformation, a reinforcing rib 315 is provided between the auxiliary wheel mounting plate 321 and the end plate 39 .

Preferably, the end plate 39 and the top plate 37 are respectively provided with circular weight-reducing holes 322, which can reduce the overall weight of the entire driving wheel system on the basis of ensuring the bearing capacity of the entire driving wheel system.

The driving wheel 31, the driving motor 32, the steering motor 34, the driving wheel bracket 35, the slewing bearing 33 and other structures constitute the driving wheel system, and in order to increase the protection of the driving wheel system, the driving wheel 31 and its connected steering motor 34, driving A protective cover 323 is provided above the motor 32 .

In order to adjust the height of the upright column 1 , a hydraulic cylinder 13 is arranged in the lower column body 11 , and the end of the piston rod of the hydraulic cylinder 13 is connected with the upper column body 12 .

The piston rod of the hydraulic cylinder 13 is arranged upward, and the extension of the piston rod can realize the extent that the upper cylinder 12 protrudes from the lower cylinder 11 , so as to adjust the height of the column 1 . This adjustment method can increase the scope of application of the entire gantry crane and reduce the limitations caused by the use environment.

In order to prevent the upper cylinder 12 from falling when the hydraulic cylinder 13 fails, the upper end of the lower cylinder 11 is provided with a pin 14, the surface of the upper cylinder 12 is provided with a pin hole 15, and the pin 14 can pass through the lower cylinder 14. The cylinder 11 extends into the pin hole 15.

Through the cooperation of the pin 14 and the pin hole 15, the position of the upper cylinder 12 can be fixed, preventing accidental falling, and ensuring the safety performance during use.

The function of the hoisting assembly 21 is to hoist workpieces such as wind energy blades. Due to the different sizes or specifications of the workpieces to be hoisted, the position of the hoisting point needs to be adjusted as required. Therefore, the hoisting assembly 21 includes a hoisting box 22 and a hoisting box 22. On one side of the hydraulic rod 23 , the telescopic direction of the hydraulic rod 23 is the same as the longitudinal direction of the hanging beam 2 , and the hoisting box 22 is installed on the hanging beam 2 through the telescopic sliding of the hydraulic rod 23 .

Specifically, the hydraulic rod 23 is installed at one end of the hanging beam 2, and its piston rod faces the middle of the hanging beam 2, while the two sides of the lifting box 22 are provided with pulleys 24, and the pulleys 24 are slidably arranged on the side wall of the hanging beam 2, thereby The movement of the hoisting box 22 on the hoisting beam 2 is driven by the expansion and contraction of the piston rod of the hydraulic rod 23 .

Preferably, in order to increase the bearing capacity of the hanging beam 2 , a plurality of reinforcing plates 25 are arranged inside the hanging beam 2 .

In order to facilitate the lifting of the workpiece, a hook 28 is installed under the lifting box 22 .

In order to reduce vibration during hoisting and ensure the stability during hoisting, both sides of the hoisting box 22 are provided with anti-vibration frames 26 , and damping springs 27 are arranged between the anti-vibration frame 26 and the hoisting box 22 .

The piston rod of the hydraulic rod 23 is movably connected to the outer side of one side of the shock-proof frame 26 through a nut or the like.

In order to facilitate the control of the hydraulic cylinder 13, the hydraulic rod 23, the driving motor 32 and the steering motor 34, a transverse frame 324 is arranged between the two bottom supports 3, and a hydraulic system 325 and an electric control box 326 are installed on the transverse frame 324.

Preferably, a plurality of reinforcing ribs 315 are provided at the connection between the horizontal frame 324 and the bottom support 2 to prevent deformation of the connection.

Before using the gantry crane, adjust the height of the column 1 and the position of the hoisting assembly 21 as required. After the wind energy blade is hoisted on the hook 28, when the gantry crane needs to travel, start the driving motor 32 to drive the driving wheel 31. turn. When steering is required, the steering motor 34 is activated, and the steering motor 34 drives the gear 316 to rotate, and the gear 316 meshes with the inner ring of the inner gear slewing bearing 33, which drives the inner ring of the inner gear slewing bearing 33 and the inner ring of the inner gear slewing bearing 33. The steering function can be realized by rotating the driving wheel mounting frame 35 and the driving wheel 31 connected to each other. The whole process is simple to operate, not restricted by the use environment, can be moved and turned at will, and is more convenient to use.

Taking the above ideal embodiment according to the present invention as inspiration, through the above description, relevant staff can make various changes and modifications without departing from the technical idea of the present invention. The technical scope of the present utility model is not limited to the content in the description, and its technical scope must be determined according to the scope of the claims.

Claims (9)

1. A column lift-type mobile gantry crane is characterized in that: it comprises two parallel columns (1) and a hanging beam (2) installed on the top of the two columns (1), and is respectively arranged on each column (1). 1) The bottom support (3) at the bottom, the upright column (1) includes a lower column (11), and an upper column (12) telescopically arranged above the lower column (11), and the hanging beam ( 2) A hoisting assembly (21) is installed on it, and the hoisting assembly (21) can move on the suspending beam (2), and the two ends of the bottom support (3) are respectively provided with driving wheels (31), A drive motor (32) is drivingly connected to the axle of the driving wheel (31), and an inner-tooth slewing bearing (33) is arranged above the driving wheel (31). A steering motor (34) is arranged above, and the steering motor (34) drives the driving wheel (31) to turn by means of an internal gear slewing bearing (33); The upper end of the lower cylinder (11) is provided with a pin (14), the surface of the upper cylinder (12) is provided with a pin hole (15), and the pin (14) can pass through the lower pillar body (11) and extend into the pin hole (15). 2. The column lift type mobile gantry crane according to claim 1, wherein a drive wheel bracket (35) is provided above the inner tooth slewing bearing (33), and a mounting base plate (36) is provided above, And the inner ring of the inner tooth type slewing bearing (33) is connected with the drive wheel bracket (35), and the outer ring is connected with the mounting base plate (36). 3. The column lift type mobile gantry crane according to claim 2, wherein the drive wheel is installed on the outer side of the drive wheel bracket (35), and the drive motor (32) is installed on the drive wheel The inner side of the bracket (35), and the drive motor (32) is connected with the axle of the drive wheel (31) through a reducer I (312). 4. The column lift-type mobile gantry crane according to claim 3, wherein the steering motor (34) is installed on the installation base plate (36), and the installation base plate (36) is provided with a A gear (316) meshing with the inner ring of the internal-tooth slewing bearing (33), the steering motor (34) is drivingly connected to the gear (316) through a reducer II (317). 5 . The column lift type mobile gantry crane according to claim 2 , wherein auxiliary universal wheels ( 320 ) are oppositely arranged at the front end and the rear end of the driving wheel bracket ( 35 ). 6 . 6 . The column lift type mobile gantry crane according to claim 1 , wherein a hydraulic cylinder ( 13 ) is arranged in the lower cylinder ( 11 ), and the end of the piston rod of the hydraulic cylinder ( 13 ) is connected with the upper cylinder (12). 7. The column lift type mobile gantry crane according to claim 1, wherein the lifting assembly (21) comprises a lifting box (22) and a hydraulic rod (23) arranged on one side of the lifting box (22). ), the telescopic direction of the hydraulic rod (23) is the same as the length direction of the hanging beam (2), and the lifting box (22) is installed on the hanging beam (2) through the telescopic sliding of the hydraulic rod (23). superior. 8 . The column lift type mobile gantry crane according to claim 7 , wherein a shock-proof frame (26) is provided on both sides of the lifting box (22), and the shock-proof frame (26) is connected to the lifting box. 9 . A damping spring (27) is arranged between (22). 9 . The column lift type mobile gantry crane according to claim 1 , wherein a cross frame ( 324 ) is arranged between the two bottom supports ( 3 ), and a cross frame ( 324 ) is installed on the cross frame ( 324 ). 10 . Hydraulic system (325) and electrical control box (326).

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