CN210232167U

CN210232167U - Automatic tightening device for supporting wheel of excavator

Info

Publication number: CN210232167U
Application number: CN201920819654.5U
Authority: CN
Inventors: Hongyun Tian; 田洪云; Jian Li; 李健
Original assignee: Shandong Lingong Construction Machinery Co Ltd
Current assignee: Shandong Lingong Construction Machinery Co Ltd
Priority date: 2019-05-31
Filing date: 2019-05-31
Publication date: 2020-04-03
Anticipated expiration: 2029-05-31

Abstract

The utility model discloses an automatic device of screwing up of excavator thrust wheel, it belongs to engineering machine tool technical field. The defects that in the prior art, the labor intensity is high, the tightening efficiency is low, and the tightening torque consistency is poor in the traditional manual tightening of the bolt of the supporting wheel are overcome. Its major structure includes the frame, be equipped with the Z axle truss on the frame, be equipped with rotary mechanism, displacement mechanism and electronic machine of screwing up on the Z axle truss, displacement mechanism includes the displacement support, be equipped with displacement motor and ball on the displacement support, the tip at the Z axle truss is installed to the displacement support, the displacement motor is connected with ball, electronic machine of screwing up is installed on ball and is passed the displacement support. The utility model discloses mainly used screws up the fixing bolt on the thrust wheel.

Description

Automatic tightening device for supporting wheel of excavator

The technical field is as follows:

the utility model belongs to the technical field of engineering machine tool, specifically speaking especially relates to an automatic device of screwing up of excavator thrust wheel.

Background art:

the tightening of the supporting wheel fixing bolt is an operation process intensive in labor intensity, the traditional tightening mode adopts manual tightening, the labor intensity is high, the tightening efficiency is low, the tightening torque consistency is poor, the risk of tightening leakage exists, and the service life of the excavator is shortened.

The invention content is as follows:

in order to solve the manual work among the prior art and screw up the shortcoming that intensity of labour that the thrust wheel bolt exists is big, screw up inefficiency, the tightening torque uniformity is poor, the utility model provides a be different from the automatic device of screwing up of prior art's excavator thrust wheel, it screws up the torque uniformity stability, screws up efficiently, has reduced intensity of labour.

In order to achieve the above purpose, the utility model is realized by adopting the following technical scheme:

the utility model provides an automatic device of screwing up of excavator thrust wheel, includes the frame, be equipped with the Z axle truss on the frame, be equipped with rotary mechanism, displacement mechanism and electronic tightening machine on the Z axle truss, displacement mechanism includes the displacement support, be equipped with displacement motor and ball on the displacement support, the tip at the Z axle truss is installed to the displacement support, the displacement motor is connected with ball, electronic tightening machine is installed on ball and is passed the displacement support.

Further, rotary mechanism includes rotating electrical machines and gyration and supports, the inner circle and the Z axle truss of gyration support are connected, rotating electrical machines installs on the gyration is supported and rotating electrical machines passes through gear mechanism and is connected with Z axle truss transmission.

Furthermore, a 3D camera is further arranged on the Z-axis truss.

Furthermore, the electric tightening machine is provided with two positions which are respectively arranged at two sides of the Z-axis truss.

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

the utility model discloses a torque uniformity has been guaranteed to screw up by displacement mechanism is stable, and screws up efficiently, has reduced intensity of labour, screws up the full-automatic unmanned of process, just the utility model is suitable for a screwing up of various model thrust wheel fixing bolt, reduced the use of manpower, practiced thrift labour cost, assembly efficiency improves greatly.

Description of the drawings:

FIG. 1 is a first axial view of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at B;

FIG. 3 is an enlarged view of a portion of FIG. 1 at F;

FIG. 4 is a second axial view of the present invention;

FIG. 5 is an enlarged view of a portion of FIG. 4 at E;

fig. 6 is a third axial view of the present invention;

fig. 7 is a partial enlarged view at C in fig. 6.

In the figure: 1. a frame; 2. a variable pitch motor; 3. a speed reducer; 4. a ball screw; 5. an electric tightening machine; 6. a pitch change mechanism; 7. a rotary support; 8. a rotating electric machine; 9. an X-axis motor; 10. a Z-axis motor; 11. a Y-axis motor; 12. a Y-axis truss; 13. an X-axis truss; 14. a Z-axis truss; 15. a 3D camera; 16. a support leg; 17. a limit switch; 18. a Y-axis rack; 19. a Y-axis linear guide rail; 20. x-axis linear guide rail.

The specific implementation mode is as follows:

the present invention will be further described with reference to the following specific embodiments and accompanying drawings.

Example 1:

as shown in fig. 1-7, an automatic tightening device for a thrust wheel of an excavator comprises a frame 1, wherein a Z-axis truss 14 is arranged on the frame 1, a rotating mechanism, a variable pitch mechanism and an electric tightening machine 5 are arranged on the Z-axis truss 14, the variable pitch mechanism comprises a variable pitch support 6, a variable pitch motor 2 and a ball screw 4 are arranged on the variable pitch support 6, the variable pitch support 6 is mounted at the end of the Z-axis truss 14 through a bolt, the variable pitch motor 2 is connected with the ball screw 4 through a speed reducer 3 and a coupler, and the electric tightening machine 5 is mounted on the ball screw 4 and penetrates through the variable pitch support 6. The rotating mechanism and the pitch mechanism are bolted to the Z-axis truss 14.

The variable-pitch support 6 is connected with the electric tightening machines 5 through guide rails and sliding blocks, the two electric tightening machines 5 are fixed on different sliding block groups and are kept fixed with nuts of the ball screw 4, the variable-pitch motor 2 is connected with the ball screw 4 through the speed reducer 3 and the coupler and is kept fixed with the guide rails, the variable pitch of the two electric tightening machines 5 is achieved through rotation of the variable-pitch motor 2, and the requirements of different tightening center distances of different types are further met.

Example 2:

the automatic tightening device for the thrust wheel of the excavator comprises a rotating mechanism 8 and a rotary support 7, wherein an inner ring of the rotary support 7 is connected with a Z-axis truss 14 through a bolt, the rotating mechanism 8 is installed on the rotary support 7, and the rotating mechanism 8 is in transmission connection with the Z-axis truss 14 through a gear mechanism; two electric tightening machines 5 are provided on the ball screw 4, and torque is changed by forward and reverse rotation of the pitch-variable motor 2, and the bolt is tightened diagonally by rotating the rotary motor 8.

The Z-axis truss 14 is also provided with a 3D camera 15, and the 3D camera 15 is installed and fixed above the variable-pitch mechanism through a support; the electric tightening machine 5 is provided with two parts which are respectively arranged at two sides of the Z-axis truss 14, so that double-shaft diagonal sequential tightening is realized. The other portions are the same as in example 1.

The control system of the automatic tightening device is controlled by the truss robot control system as a master control and is connected with the 3D camera control system, the electric tightening control system and the visualization system through the PLC.

The frame 1 mainly includes an X-axis truss 13, a Y-axis truss 12, a Z-axis truss 14, and a lower leg 16.

As shown in fig. 5, the Y-axis truss 12 is connected to the frame 1 through a Y-axis linear guide 19 and a Y-axis slider, the Y-axis linear guide 19 is fixed to the frame 1, the Y-axis slider is fixed to the Y-axis truss 12, the Y-axis motor 11 is connected to the frame 1 through a Y-axis gear and a Y-axis rack 18, the Y-axis rack 18 is fixed to the frame 1, the Y-axis gear is connected to the Y-axis motor 11, the Y-axis motor 11 is fixed to the Y-axis truss 12 through a coupling, the Y-axis truss 12 is moved in the Y-axis direction relative to the frame 1 by rotation of the Y-axis motor 11, and limit switches 17 are mounted at both ends of the Y-axis linear guide 19 to limit the movement range in the Y-axis direction.

As shown in fig. 3, an X-axis linear guide 20, an X-axis slider and a limit switch 17 are arranged on an X-axis truss 13, the limit switch 17 is provided with two parts, which are respectively installed at two ends of the X-axis linear guide 20, the X-axis truss 13 is connected with a Y-axis truss 12 through the X-axis linear guide 20 and the X-axis slider, two ends of the X-axis linear guide 20 are fixed on the Y-axis truss 12, the X-axis slider is fixed on the X-axis truss 13, an X-axis motor 9 is connected with the Y-axis truss 12 through an X-axis gear and a rack, the rack is fixed on the Y-axis truss 12, the X-axis gear is connected with the X-axis motor 9, and the X-axis motor, the movement of the X-axis truss 13 in the X-axis direction with respect to the Y-axis truss 12 is achieved by the rotation of the X-axis motor 9, and limit switches 17 are installed at both ends of the X-axis linear guide 20 to limit the moving range thereof in the X-axis direction.

The structural design on the Z-axis truss 14 is similar to that on the X-axis truss 13. The Z-axis truss 14 is connected with the X-axis truss 13 through a Z-axis linear guide rail and a Z-axis slider, the Z-axis linear guide rail is fixed on the X-axis truss 13, the Z-axis slider is fixed on the Z-axis truss 14, the Z-axis motor 10 is connected with the X-axis truss 13 through a Z-axis gear and a rack, the rack is fixed on the X-axis truss 13, the Z-axis gear is fixed on the Z-axis truss 14, the Z-axis truss 14 can move up and down in the Z-axis direction relative to the X-axis truss 13 through rotation of the Z-axis motor 10, and limit switches 17 are installed at two ends of the Z-axis linear guide rail to limit the up-down movement range of the.

The utility model discloses a theory of operation does:

the lower frame and the thrust wheel flow in place, a corresponding machine type is selected, the truss robot is started, the Y-axis truss 12 reaches a preset position, and the X-axis truss 13 reaches the preset position; the 3D camera 15 is started to photograph the supporting wheel fixing hole and collect data, and the truss robot controls the Y-axis truss 12 and the X-axis truss 13 to reach the tightening position according to the guidance of photographing coordinates and controls the distance changing mechanism to change the distance; according to the truss robot of the corresponding machine type, the Z-axis truss 14 descends to a preset position, and the electric tightening machine 5 is started to tighten; after the tightening torque reaches the preset tightening torque, the electric tightening machine 5 stops working, and the Z-axis truss 14 moves upwards; the electric tightening machine 5 is rotated by the rotating mechanism, and the Z-axis truss 14 descends to be tightened diagonally; in this way, after the screwing is finished, the truss robot returns to the original position to be ready. The truss robot includes a frame 1 and a program set therefor.

Claims

1. The utility model provides an automatic device of screwing up of excavator thrust wheel, includes frame (1), be equipped with Z axle truss (14) on frame (1), its characterized in that: be equipped with rotary mechanism, displacement mechanism and electronic machine of screwing up (5) on Z axle truss (14), the displacement mechanism includes displacement support (6), be equipped with displacement motor (2) and ball (4) on displacement support (6), the tip at Z axle truss (14) is installed in displacement support (6), displacement motor (2) are connected with ball (4), electronic machine of screwing up (5) are installed on ball (4) and are passed displacement support (6).

2. The automatic tightening device for the thrust wheel of the excavator according to claim 1, wherein: the rotating mechanism comprises a rotating motor (8) and a rotating support (7), an inner ring of the rotating support (7) is connected with the Z-axis truss (14), the rotating motor (8) is installed on the rotating support (7), and the rotating motor (8) is in transmission connection with the Z-axis truss (14) through a gear mechanism.

3. The automatic tightening device for the thrust wheel of the excavator according to claim 1 or 2, wherein: and a 3D camera (15) is also arranged on the Z-axis truss (14).

4. The automatic tightening device for the thrust wheel of the excavator according to claim 3, wherein: the electric tightening machine (5) is provided with two parts which are respectively arranged at two sides of the Z-axis truss (14).