Integral type supporting box for electric forklift driving assembly

Abstract

The utility model relates to the technical field of electric forklifts, in particular to an integral type supporting box for an electric forklift driving assembly, a supporting box body and a connecting flange plate are of an integrally formed structure, a transverse plate and a vertical plate are spliced to form an installation area, a driving wheel and a driving motor are installed in the installation area, and the connecting flange plate is installed on the transverse plate; a gearbox is arranged on the outer side face of the vertical plate, a box cover is arranged on the gearbox in a covering mode, a gear shaft hole and a rotating shaft hole are sequentially formed in the plate face of the vertical plate from top to bottom, and a first installation protrusion and a second installation protrusion are arranged on the inner side face of the vertical plate, so that the overall rigidity is improved, the precision and stability of a workpiece are improved, and the twisting capacity of the electric forklift is improved. The design is simple, and parts are reduced; under the conditions of long-time use and heavy load bearing, the connecting parts are not prone to fatigue or damage, vibration and noise are reduced, the reinforcing ribs are additionally arranged on the surfaces of the supporting box body and the box cover, the strength is further improved, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of electric forklifts, in particular to an integral support box for an electric forklift drive assembly. Background Art

[0002] An electric forklift is a lifting and transporting device widely used in modern logistics, warehousing, manufacturing and other fields. It has the advantages of flexible operation, low noise, no exhaust emissions, etc., and is an important tool for realizing green logistics and improving work efficiency.

[0003] The drive assembly of an electric forklift is one of its core components, which includes key components such as a drive motor, drive wheels, a support box body, and a connecting flange plate, and is responsible for converting electrical energy into mechanical energy to drive the forklift to travel and operate.

[0004] The existing support box body and connecting flange plate are of a split structure. The connecting flange plate is installed on the support box body through bolts. However, this split design results in insufficient overall stiffness, especially in terms of the torsional capacity of the electric forklift, and more support and fixing mechanisms need to be added to ensure the stability between components, thereby increasing the complexity of the design; at the same time, during long-term use and under heavy loads, the connecting parts are prone to fatigue or damage; moreover, the split design will generate additional vibration and noise between the drive motor and the support box, affecting the operation comfort and performance of the electric forklift, and maintenance is also more difficult. Summary of the Invention

[0005] The technical problem to be solved by the utility model is: to provide an integral support box for an electric forklift drive assembly with an integral structure, which improves the overall stiffness and stability, and at the same time maintains the convenience of installation and maintenance, in order to solve the problems existing in the prior art in the above background art.

[0006] The technical solution adopted by the utility model to solve its technical problems is: an integral support box for an electric forklift drive assembly, including a support box body and a connecting flange plate. The connecting flange plate is provided on the support box body, and the support box body and the connecting flange plate are of an integrally formed structure. The cross-sectional shape of the support box body in the vertical direction is an inverted "L" shape. The support box body is divided into a horizontal plate and a vertical plate. After the horizontal plate and the vertical plate are joined together, an installation area is formed. A drive wheel and a drive motor are installed in this installation area, and the connecting flange plate is installed on the horizontal plate; a gear box is provided on the outer side surface of the vertical plate, and a box cover is provided on the gear box. A gear shaft hole and a rotating shaft hole are successively opened on the plate surface of the vertical plate from top to bottom. A first installation protrusion for installing the drive motor and a second installation protrusion for installing the drive wheel are provided on the inner side surface of the vertical plate.

[0007] Further, a plurality of second lugs are provided on the outer peripheral wall of the box cover, and each second lug is provided with a second mounting hole. On the inner side surface of the box cover, a first convex ring and a second convex ring extending radially outward are formed. A gear cover hole is formed between the box cover and the first convex ring, and the gear cover hole is a blind hole, and the gear cover hole and the gear shaft hole are coaxially arranged;

[0008] A shaft extension hole is formed between the box cover and the second convex ring, and the shaft extension hole is a through hole, and the shaft extension hole and the shaft hole are coaxially arranged;

[0009] A cover is installed on the outer side surface of the box cover, and the cover covers the shaft hole.

[0010] Further, a plurality of second reinforcing ribs are provided between the inner side edge of the box cover and the gear cover hole.

[0011] Further, a plurality of third reinforcing ribs are provided between the inner side edge of the box cover and the shaft extension hole, and each third reinforcing rib is provided with a second screw hole, and the cover is installed on the box cover through a bolt passing through the second screw hole.

[0012] Further, a first lug is provided on the outer peripheral wall of the gear box, and a plurality of first mounting holes are radially formed on each first lug, and the central axis of the first mounting hole and the central axis of the second mounting hole in the box cover are coaxially arranged.

[0013] Further, a fourth reinforcing rib is provided on the inner side edge of the lower part of the gear box, and a first screw hole is formed on the fourth reinforcing rib, and the first screw hole and the second screw hole in the box cover are coaxially arranged.

[0014] Further, a plurality of fifth reinforcing ribs are provided on the surface of the outer side wall of the vertical plate.

[0015] Further, a plurality of first reinforcing ribs are provided at the inner corner where the vertical plate and the horizontal plate are connected.

[0016] Further, an arc-shaped reinforcing protrusion is provided between the inner side wall of the gear box and the outer peripheral wall of the gear shaft hole.

[0017] Further, an avoidance notch for avoiding the gear shaft hole is provided on the upper part of the first mounting protrusion, and a plurality of protrusions are provided on the outer peripheral wall of the first mounting protrusion.

[0018] Advantages of the present utility model: The support box body and the connecting flange are of an integral structure, thereby improving the overall stiffness, further increasing the accuracy and stability of the workpiece, enhancing the torsional ability of the electric forklift, with a simple design, fewer components, and reduced vehicle body weight. At the same time, under long-term use and heavy load conditions, the connection part is not prone to fatigue or damage, and the generation of vibration and noise is also reduced, improving the comfort and performance of the electric forklift operation and facilitating maintenance. Meanwhile, a number of reinforcing ribs are added on the surfaces of the support box body and the box cover to further increase the strength and extend the service life. Brief Description of the Drawings

[0019] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0020] Figure 1 is the structural schematic diagram of the present utility model;

[0021] Figure 2 is the exploded view of the present utility model;

[0022] Figure 3 is the structural schematic diagram of the support box of the present utility model after removing the box cover;

[0023] Figure 4 is the present utility model Figure 3 structural schematic diagram in another direction;

[0024] Figure 5 is the structural schematic diagram of the cover of the present utility model;

[0025] Figure 6 is the present utility model Figure 5 structural schematic diagram in another direction;

[0026] In the figure: 1. Support box body, 2. Connecting flange,

[0027] 11. Horizontal plate, 12. Vertical plate,

[0028] 13. Gear box, 131. First lug, 132. Fourth reinforcing rib, 133. First screw hole,

[0029] 14. Box cover, 141. Gear cover hole, 142. Shaft extension hole, 143. Second reinforcing rib, 144. Third reinforcing rib, 145. Second screw hole, 146. Second lug,

[0030] 15. Gear shaft hole, 16. Shaft hole of the shaft, 17. First reinforcing rib, 18. Fifth reinforcing rib, 19. First mounting protrusion, 20. Second mounting protrusion, 21. Protrusion, 22. Arc-shaped reinforcing protrusion. Detailed Embodiment

[0031] The present utility model will now be further described in detail with reference to the accompanying drawings. These drawings are all simplified schematic diagrams, only showing the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model.

[0032] As Figures 1 to 6 shown, an integral support box for an electric forklift drive assembly includes a support box body 1 and a connecting flange plate 2. The connecting flange plate 2 is provided on the support box body 1. The support box body 1 and the connecting flange plate 2 are of an integrally formed structure. The cross-sectional shape of the support box body 1 in the vertical direction is an inverted "L" shape. The support box body 1 is divided into a horizontal plate 11 and a vertical plate 12. After the horizontal plate 11 and the vertical plate 12 are joined together, an installation area is formed. A driving wheel and a driving motor are installed in this installation area. The connecting flange plate 2 is installed on the horizontal plate 11;

[0033] A gear box 13 is provided on the outer side surface of the vertical plate 12. A box cover 14 is provided on the gear box 13. Gear shaft holes 15 and rotating shaft holes 16 are sequentially formed on the plate surface of the vertical plate 12 from top to bottom.

[0034] On the inner side surface of the vertical plate 12, a first installation protrusion 19 for installing a driving motor and a second installation protrusion 20 for installing a driving wheel are provided.

[0035] As Figure 4 shown, several first reinforcing ribs 17 are provided at the internal angle where the vertical plate 12 and the horizontal plate 11 are connected.

[0036] As Figure 3 shown, an arc-shaped reinforcing protrusion 22 is provided between the inner side wall of the gear box 13 and the outer peripheral wall of the gear shaft hole 15.

[0037] As Figure 4 shown, an avoidance notch for avoiding the gear shaft hole 15 is provided at the upper part of the first installation protrusion 19, and several protrusions 21 are provided on the outer peripheral wall of the first installation protrusion 19.

[0038] As Figures 5 to 6 shown, several second lugs 146 are provided on the outer peripheral wall of the box cover 14. A second installation hole is formed on each second lug 146. On the inner side surface of the box cover 14, a first convex ring and a second convex ring extending radially outward are formed. A gear cover hole 141 is formed between the box cover 14 and the first convex ring. The gear cover hole 141 is a blind hole, and the gear cover hole 141 and the gear shaft hole 15 are coaxially arranged;

[0039] A rotating shaft extending hole 142 is formed between the box cover 14 and the second convex ring. The rotating shaft extending hole 142 is a through hole, and the rotating shaft extending hole 142 and the rotating shaft hole 16 are coaxially arranged;

[0040] A sealing cover is installed on the outer side surface of the box cover 14, and this sealing cover covers the rotating shaft hole 16.

[0041] Among them, a plurality of second reinforcing ribs 143 are provided between the inner edge of the box cover 14 and the gear cover hole 141.

[0042] A plurality of third reinforcing ribs 144 are provided between the inner edge of the box cover 14 and the shaft extension hole 142. A second screw hole 145 is formed in each of the third reinforcing ribs 144, and the cover is installed on the box cover 14 by bolts passing through the second screw holes 145.

[0043] First lugs 131 are provided on the outer peripheral wall of the gear box 13. A plurality of first mounting holes are radially formed in each of the first lugs 131. The central axis of the first mounting hole is coaxially arranged with the central axis of the second mounting hole in the box cover 14.

[0044] As Figure 3 shown, a fourth reinforcing rib 132 is provided on the inner lower edge of the box 13. A first screw hole 133 is formed in the fourth reinforcing rib 132. The first screw hole 133 is coaxially arranged with the second screw hole 145 in the box cover 14.

[0045] As Figure 3 shown, a plurality of fifth reinforcing ribs 18 are provided on the surface of the outer side wall of the vertical plate 12.

[0046] Inspired by the above ideal embodiments according to the present invention, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of the present invention. The technical scope of the present invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. An integrated support box for an electric forklift drive assembly, characterized in that: The invention comprises a supporting box (1) and a connecting flange (2), wherein the supporting box (1) is provided with the connecting flange (2), the supporting box (1) and the connecting flange (2) are an integrally formed structure, the vertical cross-section of the supporting box (1) is in an inverted "L" shape, the supporting box (1) is divided into a horizontal plate (11) and a vertical plate (12), the horizontal plate (11) and the vertical plate (12) are assembled to form an installation area, a driving wheel and a driving motor are installed in the installation area, and the connecting flange (2) is installed on the horizontal plate (11); The outer side surface of the vertical plate (12) is provided with a gear box (13), the upper cover of the gear box (13) is provided with a box cover (14), and the plate surface of the vertical plate (12) is provided with a gear shaft hole (15) and a rotating shaft shaft hole (16) in sequence from top to bottom. The inner side surface of the vertical plate (12) is provided with a first mounting protrusion (19) for mounting a driving motor and a second mounting protrusion (20) for mounting a driving wheel.

2. The integrated support box for an electric forklift drive assembly according to claim 1, characterized in that: A plurality of second lugs (146) are provided on the outer peripheral wall of the box cover (14), each of the second lugs (146) is provided with a second mounting hole, the inner side surface of the box cover (14) is provided with a first convex ring and a second convex ring extending radially outward, a gear cover hole (141) is formed between the box cover (14) and the first convex ring, the gear cover hole (141) is a blind hole, and the gear cover hole (141) is coaxially arranged with the gear shaft hole (15); A shaft extension hole (142) is formed between the box cover (14) and the second convex ring. The shaft extension hole (142) is a through hole. The shaft extension hole (142) and the shaft hole (16) are coaxially arranged. A sealing cover is installed on the outer side of the box cover (14), and the sealing cover is arranged on the shaft hole (16) of the rotating shaft.

3. The integrated support box for an electric forklift drive assembly according to claim 2, characterized in that: A plurality of second reinforcing ribs (143) are provided between the inner edge of the box cover (14) and the gear cover hole (141).

4. The integrated support box for an electric forklift drive assembly according to claim 2, characterized in that: A plurality of third reinforcing ribs (144) are provided between the inner edge of the box cover (14) and the shaft extension hole (142), each of the third reinforcing ribs (144) is provided with a second screw hole (145), and the cover is mounted on the box cover (14) by means of bolts passing through the second screw holes (145).

5. The integrated support box for an electric forklift drive assembly according to claim 1, characterized in that: The outer peripheral wall of the gear box (13) is provided with a first lug (131), and each first lug (131) is provided with a first mounting hole in the radial direction, and the central axis of the first mounting hole is coaxially arranged with the central axis of the second mounting hole in the box cover (14).

6. The integrated support box for an electric forklift drive assembly according to claim 1, characterized in that: The lower inner side of the gear box (13) is provided with a fourth reinforcing rib (132), and the fourth reinforcing rib (132) is provided with a first screw hole (133), and the first screw hole (133) is coaxially arranged with the second screw hole (145) in the box cover (14).

7. The integrated support box for an electric forklift drive assembly according to claim 1, characterized in that: A plurality of fifth reinforcing ribs (18) are provided on the surface of the outer side wall of the vertical plate (12).

8. The integrated support box for an electric forklift drive assembly according to claim 1, characterized in that: A plurality of first reinforcing ribs (17) are provided at the inner corners where the vertical plate (12) and the horizontal plate (11) are connected.

9. The integrated support box for an electric forklift drive assembly according to claim 1, characterized in that: An arc-shaped reinforcement protrusion (22) is provided between the inner side wall of the gear box (13) and the outer peripheral wall of the gear shaft hole (15).

10. The integrated support box for an electric forklift drive assembly according to claim 1, characterized in that: The upper part of the first mounting protrusion (19) is provided with an avoidance notch for avoiding the gear shaft hole (15), and a plurality of protrusions (21) are provided on the outer peripheral wall of the first mounting protrusion (19).

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