Jacking and reversing integrated structure for intelligent four-way pallet truck

Abstract

The invention relates to the field of intelligent storage equipment, in particular to a jacking and reversing integrated structure for an intelligent four-way pallet truck. Comprising an eccentric wheel, a follower, a reversing block, a jacking block, a spring and a vehicle body, the reversing block is arranged below the center of the eccentric wheel, the jacking block is arranged above the eccentric wheel, the lower end of the compression spring is fixed to the bottom of the vehicle body, and the upper end of the compression spring is fixed to the top of the reversing block. The technical scheme is simple in structure, and can improve the internal space of a vehicle body, thereby increasing the power supply volume and reducing the production cost.

Description

Technical Field

[0001] The invention relates to the field of intelligent storage equipment, and in particular to a lifting and reversing integrated structure for an intelligent four-way pallet truck. Background Art

[0002] The most important features of the four-way shuttle system are the two actions of reversing and lifting. Reversing is completed by the wheels installed on the reversing mechanisms at the front and rear ends descending to touch the track while the body rises. Lifting is completed after the lifting mechanism rises to lift the tray while keeping the body stationary. Usually these two mechanisms are usually independent transmission mechanisms, each set includes a motor, a reducer, and a transmission mechanism. It is difficult to arrange the limited interior of the vehicle body. The interior needs to be obtained through intricate avoidance design. The design, manufacturing, installation, and later maintenance costs are relatively high. Summary of the invention

[0003] The purpose of the present invention is to overcome the above-mentioned defects and to provide a novel integrated lifting and reversing mechanism.

[0004] In order to achieve the above object, the present invention is achieved in the following ways: A lifting and reversing integrated structure for an intelligent four-way pallet truck comprises an eccentric wheel, a follower, a reversing block, a lifting block, a spring, and a vehicle body; wherein the vehicle body is the main body, the eccentric wheel is mounted on the vehicle body, the follower is mounted on the eccentric wheel, the reversing block is below the center of the eccentric wheel, the lifting block is above the eccentric wheel, the lower end of the compression spring is fixed to the bottom of the vehicle body, and the upper end is fixed to the top of the reversing block. In the lifting and reversing integrated structure for an intelligent four-way pallet truck, the eccentric wheel is driven to rotate by the internal power of the vehicle body, and the follower moves in a circular motion with the eccentric wheel. When the follower presses down the reversing block, the reversing block moves downward, and the vehicle body moves upward. When the follower reaches the lowest point, it reaches the reversing limit. The follower rotates in the opposite direction, and the reversing block moves upward with the spring. When the eccentric wheel rotates to 109°, the upper limit of the reversing is reached, the spring elastic force reaches the limit, the follower contacts the lifting block, and the lifting block starts to rise when the rotation continues. When the eccentric wheel continues to rotate 100°, the lifting reaches the limit. The lifting and reversing integrated structure for the intelligent four-way pallet truck is characterized in that when the eccentric wheel drives the follower at different angles, it realizes the three positions of reversing limit, middle position and lifting limit, and at this time the eccentric wheel driving mechanism has only one set of mechanical transmission mechanism. In this way, the internal space of the vehicle body will be increased, a larger battery can be arranged, the battery life will be increased, and the design, production, installation and maintenance costs of one set of transmission will be reduced accordingly. After the mechanism is simplified, the reliability will also be improved.

[0005] Compared with the existing steering technology, this technical solution has the following advantages: 1. Compared with this design, the traditional lifting and reversing split mechanism is more difficult to design, more costly and less reliable.

[0006] 2. The traditional trapezoidal thread screw mechanism can also achieve three height positions. However, this mechanism has a poor thread friction life, this design takes up more space, and the mechanical structure is also complex.

[0007] 3. Traditional hydraulic mechanisms can also achieve this, but the hydraulic structure is prone to oil leakage, which will contaminate the goods. Changes in warehouse temperature will cause changes in hydraulic performance, and oil leakage will become more serious after the sealing ring ages. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 The figure is a schematic diagram of the working process of the reversing mechanism proposed in the present invention. DETAILED DESCRIPTION

[0009] The technical solutions of the embodiments of the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field without creative work based on the embodiments in the embodiments of the present application are within the scope of protection requested by the present application.

[0010] like Figure 1 A lifting and reversing integrated structure for an intelligent four-way pallet truck comprises an eccentric wheel, a follower, a reversing block, a lifting block, a spring and a car body; wherein the car body is the main body, the eccentric wheel is installed on the car body, the follower is installed on the eccentric wheel, the reversing block is below the center of the eccentric wheel, the lifting block is above the eccentric wheel, the lower end of the compression spring is fixed to the bottom of the car body, and the upper end is fixed to the top of the reversing block. The lifting and reversing integrated structure for the intelligent four-way pallet truck is characterized in that the eccentric wheel is driven to rotate by the internal power of the vehicle body, and the follower moves in a circle with the eccentric wheel. When the follower presses down the reversing block, the reversing block moves downward, and the vehicle body moves upward. When the follower reaches the lowest point, it reaches the reversing limit, and the follower rotates in the opposite direction. The reversing block moves upward with the spring. When the eccentric wheel rotates to 109°, the upper limit of the reversing is reached. The spring force reaches the limit, and the follower contacts the lifting block. When the rotation continues, the lifting block begins to rise. When the eccentric wheel continues to rotate 100°, the lifting reaches the limit. The lifting and reversing integrated structure for the intelligent four-way pallet truck is characterized in that when the eccentric wheel drives the follower at different angles, three positions of the reversing limit, the middle position, and the lifting limit are achieved, and at this time, the eccentric wheel driving mechanism has only one set of mechanical transmission mechanism. In this way, the internal space of the vehicle will be increased, larger batteries can be arranged, the battery life will be increased, a set of transmission design will be reduced, and the cost of production, installation and maintenance will be reduced accordingly. The reliability will also be improved after the structure is simplified.

[0011] Compared with the existing steering technology, this technical solution has the following advantages: 1. Compared with this design, the traditional lifting and reversing split mechanism is more difficult to design, more costly and less reliable.

[0012] 2. The traditional trapezoidal thread screw mechanism can also achieve three height positions. However, this mechanism has a poor thread friction life, this design takes up more space, and the mechanical structure is also complex.

[0013] 3. Traditional hydraulic mechanisms can also achieve this, but the hydraulic structure is prone to oil leakage, which will contaminate the goods. Changes in warehouse temperature will cause changes in hydraulic performance, and oil leakage will become more serious after the sealing ring ages.

[0014] The above are only embodiments provided for the present application and are not intended to limit the present application. Although the present application is described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. However, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A lifting and reversing integrated structure for an intelligent four-way pallet truck, characterized by: It includes an eccentric wheel, a follower, a reversing block, a lifting block, a spring and a car body; wherein the car body is the main body, the eccentric wheel is installed on the car body, the follower is installed on the eccentric wheel, the reversing block is below the center of the eccentric wheel, the lifting block is above the eccentric wheel, the lower end of the compression spring is fixed to the bottom of the car body, and the upper end is fixed to the top of the reversing block.

2. The integrated lifting and reversing structure for an intelligent four-way pallet truck according to claim 1 is characterized in that: The eccentric wheel is driven to rotate by the power inside the car body, and the follower makes circular motion with the eccentric wheel. When the follower presses down the reversing block, the reversing block moves downward, and the car body moves upward. When the follower reaches the lowest point, it reaches the reversing limit, and the follower rotates in the opposite direction. The reversing block moves upward with the spring. When the eccentric wheel rotates to 109°, the reversing upper limit is reached, the spring force reaches the limit, and the follower contacts the lifting block. When it continues to rotate, the lifting block begins to rise. When the eccentric wheel continues to rotate 100°, the lifting reaches the limit.

3. The integrated lifting and reversing structure for an intelligent four-way pallet truck according to claim 1 or 2 is characterized in that: When the eccentric wheel drives the follower at different angles, three positions of reversing limit, middle position and lifting limit are realized, and at this time, the eccentric wheel driving mechanism has only one set of mechanical transmission mechanism.

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