Driving wheel floating structure of electric fork lift truck

Abstract

The utility model relates to transportation equipment, in particular to a driving wheel floating structure of an electric fork lift truck, wheels are arranged at insertion arms of the fork lift truck, universal wheels are arranged on two sides of the rear end of the fork lift truck, and a floating driving wheel is arranged at the bottom of the fork lift truck and located between the two universal wheels. The combination of the driving wheels and the shock absorption is adopted, so that the fork truck can adopt rigid wheels and also has good trafficability, and the shock absorption wheels move downwards under the action of the shock absorption springs to be in contact with the ground for driving when the fork truck encounters an uneven ground; during the stacking operation, rigid wheels on the periphery of the stacking vehicle act to realize the stability of the vehicle body; the guide jacking column is used for guiding the shock-proof spring and makes contact with the second fixing plate for limiting when the compression degree is large, so that the spring is prevented from being excessively compressed.

Description

TECHNICAL FIELD

[0001] The utility model relates to transportation equipment, especially driving wheel floating structure of stacker. BACKGROUND

[0002] The stacker is a transportation device for transporting forked goods, and in order to overcome the uneven ground condition during the transportation process, ensure that the wheels contact the ground, and the wheels are usually shock-absorbed. For example, a kind of hydraulic lifting manual stacker with publication No. CN209456028U is provided with shock-absorbing on four wheels. However, when forked high goods are transported, the overall swing needs to be reduced, and the above-mentioned patent scheme will inevitably produce shaking when stacking, which is unsafe for stacking operation. Therefore, a stacker scheme combining rigidity and shock-absorbing is urgently needed, which can have good passability and stability when stacking. SUMMARY

[0003] In order to solve the problem that the passability and stacking operation stability of the existing stacker cannot be coordinated, the utility model provides a kind of electric stacker driving wheel floating structure, with good passability and good stacking operation stability.

[0004] The utility model discloses a kind of electric stacker driving wheel floating structure, wheel is equipped at the arm of stacker, the rear end of stacker is equipped with universal wheel on both sides, and floating drive wheel is equipped between the bottom of stacker and two universal wheels. The floating drive wheel includes drive wheel, drive wheel upper end is equipped with connecting shaft, further include first fixed plate, the middle part of first fixed plate is equipped with bearing, the middle part of first fixed plate is equipped with aperture, bearing is arranged in aperture, connecting shaft is worn and fixed on bearing;Further include second fixed plate, second fixed plate is parallelly arranged with first fixed plate, the middle part of second fixed plate is equipped with bearing, connecting shaft is worn in bearing, shock-absorbing spring is equipped between second fixed plate and first fixed plate, further include the guide column being arranged between first fixed plate and second fixed plate.

[0005] As one of preferred schemes of a kind of electric stacker driving wheel floating structure, first fixed plate is square, shock-absorbing spring is four and is arranged in the four corners of square first fixed plate, and guide column is arranged between shock-absorbing spring.

[0006] As one of preferred schemes of a kind of electric stacker driving wheel floating structure, connecting shaft middle part is hollow and is arranged in the middle part drive wheel wire harness.

[0007] As one of preferred schemes of a kind of electric stacker driving wheel floating structure, shock-absorbing spring middle part is worn with guide top pressure column, and the length of guide top pressure column is lower than shock-absorbing spring.

[0008] As one of preferred schemes of a kind of electric stacker driving wheel floating structure, guide top pressure column is fixed on first fixed plate or second fixed plate.

[0009] As one of the preferred solutions for the floating structure of the drive wheel of an electric stacker, the guide column and the guide top pressure column are provided with an outer shoulder at their lower ends, and the outer shoulder is mounted on the first fixed plate.

[0010] As one of the preferred solutions for the floating structure of the drive wheel of an electric stacker, it also includes a planar bearing mounted on the connecting shaft, the planar bearing being located between the first fixed plate and the drive wheel.

[0011] The advantages of this utility model are as follows: the combination of drive wheels and shock absorbers allows the stacker truck to use rigid wheels while also having good passability. When encountering uneven ground, the shock absorber wheels move downwards under the action of the shock absorber springs and contact the ground for driving. During stacking operations, the rigid wheels around the stacker truck help stabilize the vehicle body. The guide top pressure column guides the shock absorber springs and, when the compression degree is large, contacts the second fixed plate for limiting and preventing the spring from being over-compressed. Attached Figure Description

[0012] Figure 1 This is a perspective view of the drive wheel of this utility model.

[0013] Figure 2 This is a schematic diagram of the drive wheel of this utility model from another perspective.

[0014] Figure 3 This is a perspective view of the present invention from another angle.

[0015] Figure 4 This is a partial schematic diagram of the stacker truck of this utility model.

[0016] The components are: 1. Drive wheel; 2. Connecting shaft; 3. First fixing plate; 4. Second fixing plate; 5. Shock absorber spring; 6. Guide column; 7. Guide top pressure column; 8. Middle part of connecting shaft; 10. Outer shoulder; 11. Flat bearing; 12. Wheel; 13. Universal wheel. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, not all of them. Listing all technical features in the dependent claims in a certain embodiment does not mean that that part is an essential technical feature; this embodiment is for the purpose of simply and clearly describing the technical solution. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art are within the scope of protection of this application. The present invention will be further described below with reference to specific accompanying drawings.

[0018] like Figures 1 to 3 As shown, Figures 1 to 4As shown, an electric stacker truck with a floating drive wheel structure is disclosed. The stacker truck has wheels at its boom and casters on both sides of its rear end. A floating drive wheel is located at the bottom of the stacker truck between the two casters. The floating drive wheel includes a drive wheel 1 with a connecting shaft 2 at its upper end. It also includes a first fixing plate 3 with a bearing in its center and an opening in its center. The bearing is housed within the opening, and the connecting shaft 2 passes through and is fixed to the bearing. Furthermore, it includes a second fixing plate 4, parallel to the first fixing plate 3, with a bearing in its center. The connecting shaft 2 passes through the bearing. A shock-absorbing spring 5 is located between the second fixing plate 4 and the first fixing plate 3. Finally, it includes a guide post 6 positioned between the first fixing plate 3 and the second fixing plate 4. A guide pressure post 7 passes through the center of the shock-absorbing spring 5, and the length of the guide pressure post 7 is shorter than that of the shock-absorbing spring 5.

[0019] The middle part 8 of the connecting shaft is hollow, and the drive wheel 1 wiring harness is threaded through the middle part.

[0020] Based on a further improvement of the above embodiments, the guide pressing column 7 is fixed on the first fixed plate 3 or the second fixed plate 4. The guide column 6 and the guide pressing column 7 are provided with an outer shoulder 10 at their lower ends, and the outer shoulder 10 is abutted on the first fixed plate 3. After excessive compression, the upper end of the guide pressing column 7 contacts the lower end of the second fixed cover plate, and the outer shoulder 10 abuts against the first fixed plate 3, ensuring reliable and stable overall strength.

[0021] Based on a further improvement of the above embodiment, the first fixing plate 3 is square, the shock-absorbing springs 5 ​​are four and are arranged at the four corners of the square first fixing plate 3, and the guide post 6 is arranged between the shock-absorbing springs 5.

[0022] A further improvement based on the above embodiments includes a planar bearing 11 mounted on the connecting shaft 2, the planar bearing 11 being located between the first fixed plate 3 and the drive wheel 1.

Claims

1. An electric power-driven lift truck drive wheel floating structure, a wheel (12) is arranged at the lift truck arm, universal wheels (13) are arranged at both sides of the rear end of the lift truck, characterized in that: The bottom of the stacking truck is located between two universal wheels and is provided with a floating drive wheel; the floating drive wheel comprises a drive wheel, an upper end of the drive wheel (1) is provided with a connecting shaft (2), a first fixed plate (3) is further included, a bearing is arranged in the middle of the first fixed plate (3), the first fixed plate (3) is provided with an opening in the middle, the bearing is arranged in the opening, the connecting shaft (2) is arranged through and fixed on the bearing; a second fixed plate (4) is further included, the second fixed plate (4) is arranged in parallel with the first fixed plate (3), a bearing is arranged in the middle of the second fixed plate (4), the connecting shaft (2) is arranged through the bearing, a shock-absorbing spring (5) is arranged between the second fixed plate (4) and the first fixed plate (3), and a guide column (6) is arranged between the first fixed plate (3) and the second fixed plate (4).

2. The drive wheel floatation structure for an electric lift truck as set forth in claim 1, wherein: The first fixed plate (3) is square, the shock-absorbing spring (5) is four and is arranged at four corners of the square first fixed plate (3), and the guide column (6) is arranged between the shock-absorbing springs (5).

3. The drive wheel floatation structure for an electric lift truck as set forth in claim 1, wherein: The middle part (8) of the connecting shaft is hollow and arranged through the wire harness of the drive wheel (1).

4. The drive wheel floatation structure for an electric lift truck as set forth in claim 2, wherein: The shock-absorbing spring (5) is provided with a guide pressing column (7) arranged through the middle part, the length of the guide pressing column (7) is lower than that of the shock-absorbing spring (5).

5. The drive wheel floatation structure for an electric lift truck as set forth in claim 4, wherein: The guide pressing column (7) is fixed on the first fixed plate (3) or the second fixed plate (4).

6. The drive wheel floatation structure for an electric lift truck as set forth in claim 1, wherein: The guide column (6) and the lower end of the guide pressing column (7) are provided with an outer shoulder part (10), and the outer shoulder part (10) is arranged on the first fixed plate (3).

7. The motorized lift truck drive wheel floatation structure of claim 1 wherein: A plane bearing (11) arranged through the connecting shaft (2) is further included, and the plane bearing (11) is located between the first fixed plate (3) and the drive wheel (1).

Images