Novel wheel carrier assembly for electric carrier

Abstract

The utility model relates to the technical field of electric carriers, and discloses a novel wheel carrier assembly for an electric carrier, which comprises a first wheel carrier, a pin shaft is fixedly connected to the inner wall of the first wheel carrier, a second wheel carrier is attached to the surface of the pin shaft, a first elastic piece is fixedly connected to the right side of the second wheel carrier, and a second elastic piece is fixedly connected to the right side of the second wheel carrier. Damping springs are arranged on the surface of the first elastic piece and the right side of the second wheel carrier in an attached mode, and second elastic pieces are arranged on the inner walls of the damping springs in an attached mode. Through cooperation of the locking support and the U-shaped plate, maintenance personnel can complete disassembly and assembly between the locking support and the first wheel carrier by rotating the rotating block on the locking support, meanwhile, after the locking support is separated from the first wheel carrier, the damping spring can be taken out of the first wheel carrier through the square hole, and the damping spring is prevented from being damaged. Therefore, the damping spring on the wheel carrier assembly is convenient to disassemble and assemble, and maintenance personnel can replace the damaged damping spring conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of electric transport vehicles, in particular to a new wheel frame assembly for an electric transport vehicle. Background Art

[0002] An electric transport truck is a logistics transport vehicle used to transport goods; when the transport truck is in use, the fork it carries is inserted into the hole of the pallet, and then the pallet is lifted and moved by the fork.

[0003] Most of the existing wheel frame assemblies used in electric transport vehicles hinge two wheel frames together through a pin shaft, and install elastic parts and shock-absorbing springs in the wheel frames to reduce the vibration generated by the electric transport vehicle when it is bumpy or braked suddenly. For example, a transport vehicle disclosed in Chinese patent publication No. CN205916980U, but because the shock-absorbing spring is located inside the wheel frame, it is more troublesome to disassemble and assemble the shock-absorbing spring, which makes it inconvenient for maintenance personnel to replace the damaged shock-absorbing spring. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art, such as: the existing wheel frame assembly for electric transport vehicles mostly hinges two wheel frames together through a pin shaft, and installs elastic parts and shock-absorbing springs in the wheel frame, so that the vibration generated by the electric transport vehicle during bumps or sudden braking can be reduced, but because the shock-absorbing spring is located inside the wheel frame, it is more troublesome to disassemble and assemble the shock-absorbing spring, which makes it inconvenient for maintenance personnel to replace the damaged shock-absorbing spring. A new wheel frame assembly for an electric transport vehicle is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A new wheel frame assembly for an electric transport vehicle comprises a first wheel frame, an inner wall of the first wheel frame is fixedly connected to a pin shaft, a second wheel frame is fitted on the surface of the pin shaft, a first elastic member is fixedly connected to the right side of the second wheel frame, a shock-absorbing spring is fitted on the surface of the first elastic member and the right side of the second wheel frame, a second elastic member is fitted on the inner wall of the shock-absorbing spring, a locking bracket is fixedly connected to the right side of the second elastic member, a square hole is opened on the right side of the first wheel frame, a U-shaped plate is fixedly connected to the right side of the inner wall of the first wheel frame, and the inner wall of the U-shaped plate, the inner wall of the square hole, the inner wall of the first wheel frame and the right side of the shock-absorbing spring are all in contact with the surface of the locking bracket.

[0007] Preferably, the locking bracket comprises a hollow square, the left side of the hollow square is fixedly connected to the left side of the second elastic member, the left side of the hollow square is in contact with the right side of the shock-absorbing spring, a groove is provided on the surface of the hollow square, the inner wall of the groove, the inner wall of the U-shaped plate and the inner wall of the first wheel frame are all fitted with a locking block, the right side of the hollow square is fixedly connected to a hollow square tube, the inner wall of the square hole and the right side of the locking block are in contact with the surface of the hollow square tube, the right side of the hollow square tube is fixedly connected to a hollow square plate, the inner wall of the hollow square plate is fitted with a first cylinder, and the first A rotating block is fixedly connected to the right side of a cylinder, a disc is fixedly connected to the surface of the first cylinder, the left and right sides of the hollow square plate are respectively in contact with the left side of the rotating block and the right side of the disc, a volute spring is fixedly connected to the surface of the first cylinder, a connecting ring is fixedly connected to the surface of the volute spring and the right side of the hollow square, an arc-shaped hole is provided inside the disc, a second cylinder is fitted on the inner wall of the arc-shaped hole, the left side of the second cylinder is fixedly connected to the right side of the locking block, a strip ring is fitted on the left side of the locking block, and the surface of the strip ring is fixedly connected to the inner wall of the groove.

[0008] Preferably, both the front and rear sides of the inner wall of the second wheel frame are fixedly connected with a rotating shaft, a bearing is fitted on the surface of the rotating shaft, and a balance wheel is fixedly connected to the surface of the bearing.

[0009] Preferably, a pressing column is fixedly connected to the left side of the locking block, the surface of the pressing column is in contact with the inner wall of the strip ring, and a rubber pad is bonded to the side of the pressing column close to the shock absorbing spring.

[0010] Preferably, a strip hole is provided inside the rotating block, a U-shaped positioning column is fitted on the inner wall of the strip hole, limiting rings are fitted on the upper and lower sides of the rotating block, the inner wall of the limiting ring is fixedly connected to the surface of the U-shaped positioning column, and a positioning groove is provided on the right side of the hollow square plate.

[0011] Preferably, the center of the rotating block is on the same horizontal line as the axis of the first cylinder.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] (1) The utility model cooperates with the locking bracket and the U-shaped plate so that maintenance personnel can complete the disassembly and assembly between the locking bracket and the first wheel frame by rotating the rotating block on the locking bracket. At the same time, when the locking bracket is separated from the first wheel frame, the shock-absorbing spring can be taken out from the first wheel frame through the square hole, thereby making it easier to disassemble and assemble the shock-absorbing spring on the wheel frame assembly, thereby facilitating maintenance personnel to replace damaged shock-absorbing springs.

[0014] (2) The utility model provides a pressing column and a rubber pad, wherein, when the locking block on the locking bracket is separated from the U-shaped plate and the first wheel frame, the pressing column can clamp the shock-absorbing spring through the locking block, and the shock-absorbing spring and the locking bracket can move synchronously, and then, through the cooperation of the pressing column and the rubber pad, it is convenient for maintenance personnel to take out the shock-absorbing spring from the first wheel frame. At the same time, through the cooperation of the strip hole, the U-shaped positioning column, the limit ring and the positioning groove, the pressing column can lock the pressing column when clamping the shock-absorbing spring, and then when the maintenance personnel push and pull the locking bracket, the shock-absorbing spring is not easy to fall off the second elastic member. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0017] Figure 3 It is a front view of the structure of the utility model;

[0018] Figure 4 for Figure 3 Enlarged view of point B in the middle;

[0019] Figure 5 It is a right side view of the locking bracket in the utility model;

[0020] Figure 6 for Figure 5 Sectional view at CC;

[0021] Figure 7 It is a right side view of the hollow block of the utility model;

[0022] Figure 8 It is a right side view of the disc in the utility model.

[0023] In the figure: 1. first wheel frame; 2. pin shaft; 3. second wheel frame; 4. first elastic member; 5. shock-absorbing spring; 6. second elastic member; 7. locking bracket; 701. hollow square block; 702. groove; 703. locking block; 704. hollow square tube; 705. hollow square plate; 706. first cylinder; 707. rotating block; 708. disk; 709. scroll spring; 710. connecting ring; 711. arc hole; 712. second cylinder; 713. strip ring; 8. square hole; 9. U-shaped plate; 10. rotating shaft; 11. bearing; 12. balancing wheel; 13. pressing column; 14. rubber pad; 15. strip hole; 16. U-shaped positioning column; 17. limiting ring; 18. positioning groove. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0026] Embodiment 1:

[0027] Reference Figure 1-8 A new wheel frame assembly for an electric transport vehicle comprises a first wheel frame 1, an inner wall of the first wheel frame 1 is fixedly connected with a pin shaft 2, a second wheel frame 3 is fitted on the surface of the pin shaft 2, the first wheel frame 1 and the second wheel frame 3 are hinged together through the pin shaft 2, a first elastic member 4 is fixedly connected to the right side of the second wheel frame 3, a shock absorbing spring 5 is fitted on the surface of the first elastic member 4 and the right side of the second wheel frame 3, a second elastic member 6 is fitted on the inner wall of the shock absorbing spring 5, the shock absorbing spring 5 is supported by the first elastic member 4 and the second elastic member 6, and the second A locking bracket 7 is fixedly connected to the right side of the elastic member 6, a square hole 8 is opened on the right side of the first wheel frame 1, a U-shaped plate 9 is fixedly connected to the right side of the inner wall of the first wheel frame 1, the inner wall of the U-shaped plate 9, the inner wall of the square hole 8, the inner wall of the first wheel frame 1 and the right side of the shock-absorbing spring 5 are all in contact with the surface of the locking bracket 7, and a rotating shaft 10 is fixedly connected to the front and rear sides of the inner wall of the second wheel frame 3, a bearing 11 is fitted on the surface of the rotating shaft 10, and a balancing wheel 12 is fixedly connected to the surface of the bearing 11, so that the balancing wheel 12 can rotate more smoothly on the rotating shaft 10 through the bearing 11.

[0028] The locking bracket 7 includes a hollow block 701, the left side of the hollow block 701 is fixedly connected to the left side of the second elastic member 6, the left side of the hollow block 701 is in contact with the right side of the shock absorbing spring 5, a groove 702 is provided on the surface of the hollow block 701, the inner wall of the groove 702, the inner wall of the U-shaped plate 9, and the inner wall of the first wheel frame 1 are all fitted with a locking block 703, the right side of the hollow block 701 is fixedly connected to a hollow square tube 704, the inner wall of the square hole 8 and the right side of the locking block 703 are all in contact with the hollow square tube The hollow square tube 704 is in contact with the surface of the hollow square plate 705, the right side of the hollow square tube 704 is fixedly connected with a hollow square plate 705, the inner wall of the hollow square plate 705 is fitted with a first cylinder 706, the right side of the first cylinder 706 is fixedly connected with a rotating block 707, the center of the rotating block 707 is on the same horizontal line as the axis of the first cylinder 706, the surface of the first cylinder 706 is fixedly connected with a disk 708, the left and right sides of the hollow square plate 705 are in contact with the left side of the rotating block 707 and the right side of the disk 708 respectively, and the first cylinder 706 is fixedly connected with a rotating block 707. The surface of the hollow block 706 is fixedly connected with a spiral spring 709, the surface of the spiral spring 709 and the right side of the hollow block 701 are fixedly connected with a connecting ring 710, the inside of the disk 708 is provided with an arc hole 711, the inner wall of the arc hole 711 is fitted with a second cylinder 712, the left side of the second cylinder 712 is fixedly connected to the right side of the locking block 703, the left side of the locking block 703 is fitted with a strip ring 713, the surface of the strip ring 713 is fixedly connected to the inner wall of the groove 702, and the strip ring 713 is fixedly connected to the inner wall of the groove 702. The spherical ring 713 and the hollow square tube 704 limit the locking block 703 in the groove 702. When the rotating block 707 rotates, the distance between the locking block 703 and the connecting ring 710 is reduced through the cooperation of the arc hole 711 and the second cylinder 712, and the locking block 703 is separated from the U-shaped plate 9. When the locking block 703 is inserted into the U-shaped plate 9, the elastic force of the spiral spring 709 prevents the first cylinder 706 from rotating, and the locking block 703 and the U-shaped plate 9 cannot be automatically separated.

[0029] Embodiment 2:

[0030] Reference Figure 1-6 A pressing column 13 is fixedly connected to the left side of the locking block 703, and the surface of the pressing column 13 is in contact with the inner wall of the strip ring 713. A rubber pad 14 is bonded to the side of the pressing column 13 close to the shock-absorbing spring 5. By setting the pressing column 13 and the rubber pad 14, when the locking block 703 on the locking bracket 7 is separated from the U-shaped plate 9 and the first wheel frame 1, the locking block 703 can be used to enable the pressing column 13 to clamp the shock-absorbing spring 5, and the shock-absorbing spring 5 and the locking bracket 7 can move synchronously, and then through the cooperation of the pressing column 13 and the rubber pad 14, it is convenient for maintenance personnel to take out the shock-absorbing spring 5 from the first wheel frame 1.

[0031] A strip hole 15 is provided inside the rotating block 707, and a U-shaped positioning column 16 is fitted on the inner wall of the strip hole 15. Limiting rings 17 are fitted on the upper and lower sides of the rotating block 707, and the inner wall of the limiting ring 17 is fixedly connected to the surface of the U-shaped positioning column 16. A positioning groove 18 is provided on the right side of the hollow square plate 705, and the U-shaped positioning column 16 in the strip hole 15 is limited by the limiting ring 17. When the U-shaped positioning column 16 is inserted into the positioning groove 18, the rotating block 707 can be locked through the cooperation of the U-shaped positioning column 16 and the positioning groove 18, and the pressing column 13 cannot release the shock-absorbing spring 5, so that when the maintenance personnel push and pull the locking bracket 7, the shock-absorbing spring 5 is not easy to fall off the second elastic member 6.

[0032] In the present invention, when the user replaces the damping spring 5 on the wheel frame assembly, the user first rotates the rotating block 707 to rotate the disk 708, and then reduces the distance between the locking block 703 and the connecting ring 710 through the cooperation of the second cylinder 712 and the arc hole 711. When the U-shaped plate 9 and the first wheel frame 1 are separated from the locking block 703, the pressing column 13 can clamp the damping spring 5 through the locking block 703, and then, the damping spring 5 can be taken out from the first wheel frame 1 by pulling the locking bracket 7, and then, a new damping spring 5 is put on the second elastic member 6, and the pressing column 13 can be pressed by the rotating block 707. The column 13 clamps the shock-absorbing spring 5, and then the locking bracket 7 is inserted into the square hole 8, and the shock-absorbing spring 5 is put on the first elastic member 4. When the locking block 703 is aligned with the U-shaped plate 9, the locking block 703 is inserted into the U-shaped plate 9 with the cooperation of the second cylinder 712 and the arc hole 711 by rotating the rotating block 707, and the locking block 703 and the U-shaped plate 9 cannot be automatically separated through the elastic force of the spiral spring 709. At this time, the locking bracket 7 is fixed in the square hole 8 through the cooperation of the locking column and the U-shaped plate 9, and the shock-absorbing spring 5 is fixed in the first wheel frame 1 through the first elastic member 4 and the second elastic member 6.

[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

Claims

1. A new wheel frame assembly for an electric transport vehicle, comprising a first wheel frame (1), characterized in that: The inner wall of the first wheel frame (1) is fixedly connected with a pin shaft (2), the surface of the pin shaft (2) is fitted with a second wheel frame (3), the right side of the second wheel frame (3) is fixedly connected with a first elastic member (4), the surface of the first elastic member (4) and the right side of the second wheel frame (3) are both fitted with a shock absorbing spring (5), the inner wall of the shock absorbing spring (5) is fitted with a second elastic member (6), the right side of the second elastic member (6) is fixedly connected with a locking bracket (7), the right side of the first wheel frame (1) is provided with a square hole (8), the right side of the inner wall of the first wheel frame (1) is fixedly connected with a U-shaped plate (9), the inner wall of the U-shaped plate (9), the inner wall of the square hole (8), the inner wall of the first wheel frame (1) and the right side of the shock absorbing spring (5) are all in contact with the surface of the locking bracket (7).

2. The new wheel frame assembly for an electric transport vehicle according to claim 1 is characterized in that: The locking bracket (7) comprises a hollow block (701), the left side of the hollow block (701) is fixedly connected to the left side of the second elastic member (6), the left side of the hollow block (701) is in contact with the right side of the shock absorbing spring (5), a groove (702) is provided on the surface of the hollow block (701), and the inner wall of the groove (702), the inner wall of the U-shaped plate (9), and the inner wall of the first wheel frame (1) are all fitted with a locking member. The right side of the hollow square block (701) is fixedly connected to a hollow square tube (704), the inner wall of the square hole (8) and the right side of the locking block (703) are in contact with the surface of the hollow square tube (704), the right side of the hollow square tube (704) is fixedly connected to a hollow square plate (705), the inner wall of the hollow square plate (705) is fitted with a first cylinder (706), and the right side of the first cylinder (706) is fixedly connected to the inner wall of the hollow square plate (705). A rotating block (707) is fixedly connected, a disk (708) is fixedly connected to the surface of the first cylinder (706), the left and right sides of the hollow square plate (705) are in contact with the left side of the rotating block (707) and the right side of the disk (708) respectively, a volute spring (709) is fixedly connected to the surface of the first cylinder (706), the surface of the volute spring (709) and the right side of the hollow square block (701) are fixedly connected with a connecting ring (710), an arc-shaped hole (711) is opened inside the disk (708), the inner wall of the arc-shaped hole (711) is fitted with a second cylinder (712), the left side of the second cylinder (712) is fixedly connected to the right side of the locking block (703), the left side of the locking block (703) is fitted with a strip ring (713), and the surface of the strip ring (713) is fixedly connected to the inner wall of the groove (702).

3. The new wheel frame assembly for an electric transport vehicle according to claim 1 is characterized in that: A rotating shaft (10) is fixedly connected to both the front and rear sides of the inner wall of the second wheel frame (3); a bearing (11) is fitted on the surface of the rotating shaft (10); and a balancing wheel (12) is fixedly connected to the surface of the bearing (11).

4. The new wheel frame assembly for an electric transport vehicle according to claim 2 is characterized in that: A pressing column (13) is fixedly connected to the left side of the locking block (703), the surface of the pressing column (13) is in contact with the inner wall of the strip ring (713), and a rubber pad (14) is bonded to the side of the pressing column (13) close to the shock absorbing spring (5).

5. The new wheel frame assembly for an electric transport vehicle according to claim 2 is characterized in that: The rotating block (707) is provided with a strip hole (15) inside, and a U-shaped positioning column (16) is fitted on the inner wall of the strip hole (15). Limiting rings (17) are fitted on both the upper and lower sides of the rotating block (707), and the inner wall of the limiting ring (17) is fixedly connected to the surface of the U-shaped positioning column (16). A positioning groove (18) is provided on the right side of the hollow square plate (705).

6. The new wheel frame assembly for an electric transport vehicle according to claim 2 is characterized in that: The center of the rotating block (707) is on the same horizontal line as the axis of the first cylinder (706).

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