Anti-rolling wheel and stacking machine using the same

Abstract

The application provides an anti-overturning wheel and a stacking machine applying the device, and belongs to the field of logistics sorting and automatic equipment. The eccentric shaft penetrating sleeve structure is used to adjust the anti-overturning wheel to always adhere to the inner wall of the track, so that the purpose of preventing the walking wheel set from being obviously overturned and effectively preventing the wheel set from leaving the track during braking is achieved. The anti-overturning wheel comprises a fixed support fixedly connected to a lower cross beam, a wheel seat provided with at least one set of rubber-coated rollers, and an eccentric shaft. The two ends of the eccentric shaft are respectively penetrated into the fixed support and the wheel seat. A mounting through hole is arranged at the side end of the wheel seat. The rubber-coated rollers and the bearing are respectively sleeved on the outer diameter of the shaft sleeve. The shaft sleeve penetrates into the mounting through hole at the side end of the wheel seat. The pin shaft penetrates into the shaft sleeve and is locked at the end by the stop edge and the screw set.

Description

Technical Field

[0001] This application belongs to the field of logistics sorting and automation equipment, specifically relating to a novel anti-tipping and anti-overturning wheel for a track-walking mechanism and a stacker crane using the device. Background Technology

[0002] With the rapid development of automated logistics transportation technology at home and abroad, automated warehousing has become widely popular. The stacker cranes that are commonly used now operate at high speeds and are core handling equipment, which can effectively improve the efficiency of transportation operations.

[0003] Existing stacker cranes generally have a tall and narrow overall structure. To prevent the driven wheels from tilting or even derailing during sudden deceleration and braking at high speeds, fixed anti-tilt wheel structures are usually installed on one or both sides of the driven wheels. Because these existing anti-tilt wheels cannot dynamically adjust their axial center, they cannot completely solve the problem of driven wheels tilting during deceleration and braking. Furthermore, they still pose a significant risk of derailment for H-beam steel rails with large inner heights. Therefore, the stacker crane's operating speed and load must be controlled within a certain range; otherwise, the driven wheels are more likely to derail, posing a significant safety hazard to the stacker crane and directly impacting the efficiency of cargo handling operations in automated warehouses.

[0004] In view of the above, this patent application is hereby filed. Summary of the Invention

[0005] The anti-tipping wheel and stacker using the device described in this application aim to solve the problems and deficiencies of the prior art by adjusting the anti-tipping wheel to always fit against the inner wall of the track based on the eccentric shaft sleeve structure, thereby achieving the purpose of preventing the traveling wheel set from obviously flipping up during braking and effectively preventing the wheel set from leaving the track.

[0006] To achieve the above design objectives, the anti-tipping wheel includes a fixed bracket fixedly connected to the lower crossbeam, a wheel seat with at least one set of rubber-coated rollers on the shaft, and an eccentric shaft. The two ends of the eccentric shaft are respectively connected to the fixed bracket and the wheel seat. A mounting through hole is provided on the side end of the wheel seat. The rubber-coated rollers and bearings are respectively fitted onto the outer diameter of the bushing. The bushing passes through the mounting through hole on the side end of the wheel seat. The pin passes through the bushing and is locked at its end by a flange and a screw.

[0007] Furthermore, a set of retaining rings is axially fitted between the bearing and the bushing.

[0008] Furthermore, after the eccentric shaft passes through the mounting hole of the fixed bracket, the tapered sleeve and the brake washer are sequentially fitted onto the outer diameter of the eccentric shaft from the outside to the inside. The brake washer is locked on the outside by a round nut, and the tapered sleeve is tightened between the eccentric shaft and the mounting hole of the fixed bracket under pressure.

[0009] Based on the aforementioned anti-tipping wheel, this application also proposes a stacker crane using the device, including a lower crossbeam running on a track, a driven wheel set mounted on the lower crossbeam, and the aforementioned anti-tipping wheel set provided on one or both sides of the driven wheel set.

[0010] As mentioned above, the advantages of the anti-tipping wheel and the stacker crane using the device proposed in this application are that the anti-tipping wheel can be adjusted to fit against the inner wall of the track through the eccentric shaft. When braking, the inertial kinetic energy released by the lower crossbeam of the stacker crane is transferred to the track by the anti-tipping wheel and absorbed and canceled out. The sway of the lower crossbeam is reduced and it quickly returns to a stationary position. Therefore, it can effectively prevent the traveling wheel set from leaving the track, ensure the safe operation of the stacker crane, and significantly improve the efficiency of cargo transportation operations. Attached Figure Description

[0011] The present application will now be further illustrated with reference to the following figures.

[0012] Figure 1 This is a schematic diagram of a stacker crane section using the anti-tipping wheel described in this application;

[0013] Figure 2 This is a structural diagram of the anti-tipping wheel;

[0014] Figure 3 yes Figure 2 A schematic cross-sectional view of the top section of the structure shown;

[0015] In the above-mentioned attached figures, 1 is a fixed bracket; 2 is a tapered sleeve; 3 is a brake washer; 4 is a round nut; 5 is an eccentric shaft; 6 is a wheel seat; 7 is a rubber-coated roller; 8 is a bearing; 9 is a pin; 10 is a bushing; 11 is a snap ring; 12 is a flange; 13 is a screw assembly; 20 is a lower crossbeam; 30 is a driven wheel assembly; 40 is a drive wheel assembly; 50 is a loading platform; 60 is left and right columns; and 70 is an H-beam rail. Detailed Implementation

[0016] Example 1, as Figure 1 As shown, a stacker crane with a novel anti-tipping wheel includes a lower crossbeam 20 running on an H-beam steel track 70, and left and right columns 60 assembled and connected to the lower crossbeam 20. A loading platform 50, a drive and guide wheel set 40, and at least one set of driven wheel sets 30 are mounted on the lower crossbeam 20.

[0017] Among them, the anti-tipping wheel proposed in this application is provided on one or both sides of the driven wheel assembly 30.

[0018] The anti-tipping wheel includes a fixed bracket 1 fixedly connected to the lower crossbeam 20, a wheel seat 6 with at least one set of rubber-coated rollers 7 on the shaft, and an eccentric shaft 5, with both ends of the eccentric shaft 5 respectively connected through the fixed bracket 1 and the wheel seat 6;

[0019] A mounting through hole is provided on the side end of the wheel seat 6. The rubber-coated roller 7 and bearing 8 are respectively fitted onto the outer diameter of the bushing 10. The bushing 10 passes through the mounting through hole on the side end of the wheel seat 6. The pin 9 passes through the bushing 10 and is locked at its end by a flange 12 and a screw 13.

[0020] To prevent the bearing 8 from axially displacing during the movement of the rubber-coated roller 7 along the inner wall of the H-beam rail 70, a set of retaining rings 11 can be axially fitted between the bearing 8 and the bushing 10. The retaining rings 11 can prevent the bearing 8 from moving due to their own elastic adjustment force, thereby ensuring that the rubber-coated roller 7 remains stable during braking.

[0021] After the eccentric shaft 5 passes through the mounting hole of the fixed bracket 1, the tapered sleeve 2 and the brake washer 3 are sequentially fitted onto the outer diameter of the eccentric shaft 5 from the outside to the inside. The brake washer 3 is locked on the outside by the round nut 4. After being pressed, the tapered sleeve 2 is tightened between the eccentric shaft 5 and the mounting hole of the fixed bracket 1 in the radial direction. The shaft end of the eccentric shaft 5 is fixed to the fixed bracket 1 by mutual friction.

[0022] Based on the aforementioned anti-tipping wheel design, before the stacker crane operates at high speed, the round nut 4 can be loosened to release the tapered sleeve 2, thereby rotating the eccentric shaft 5 to adjust the rubber-coated roller 7 to fit tightly against the H-beam steel rail 70. During braking, the stacker crane's inertial kinetic energy is transmitted to the H-beam steel rail 70 through the eccentric shaft 5 and the rubber-coated roller 7, absorbing and offsetting a portion of the inertial kinetic energy, thus reducing the stacker crane's sway and quickly returning it to normal.

[0023] In summary, the embodiments shown in the accompanying drawings are merely preferred solutions. Those skilled in the art can draw inspiration from these embodiments and directly derive other alternative structures that conform to the design concept of this invention, which should also fall within the scope of the present invention.

Claims

1. An anti-tipping wheel, characterized in that: It includes a fixed bracket fixedly connected to the lower crossbeam, a wheel seat with at least one set of rubber-coated rollers on the shaft, and an eccentric shaft, with both ends of the eccentric shaft respectively connected through the fixed bracket and the wheel seat; A mounting through hole is provided on the side end of the wheel seat. The rubber-coated roller and bearing are respectively fitted into the outer diameter of the bushing. The bushing passes through the mounting through hole on the side end of the wheel seat. The pin passes through the bushing and is locked at its end by a flange and screw.

2. The anti-tipping wheel according to claim 1, characterized in that: A set of retaining rings is fitted axially between the bearing and the bushing.

3. The anti-tipping wheel according to claim 1, characterized in that: After the eccentric shaft passes through the mounting hole of the fixed bracket, the tapered sleeve and the brake washer are sequentially fitted onto the outer diameter of the eccentric shaft from the outside to the inside. The brake washer is locked on the outside by a round nut. After being compressed, the tapered sleeve is tightened between the eccentric shaft and the mounting hole of the fixed bracket in the radial direction.

4. A stacker crane using the anti-tipping wheel according to any one of claims 1 to 3, characterized in that: It includes a lower crossbeam running on a track, a driven wheel assembly mounted on the lower crossbeam, and the aforementioned anti-tipping wheels installed on one or both sides of the driven wheel assembly.

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