Electric carrier with combined bearing structure

Abstract

The utility model relates to the technical field of electric carriers, in particular to an electric carrier with a combined bearing structure. An oil cylinder is installed on the pedestal, and the fixed end of the oil cylinder is connected with the battery bin through a combined bearing structure. The combined bearing structure comprises a rear cover reinforcing plate and two oil cylinder supports, the rear cover reinforcing plate is installed on a rear cover of the battery bin, the oil cylinder supports are inserted into the front side and the rear side of the rear cover reinforcing plate, an installation space used for installing an oil cylinder is formed between the two oil cylinder supports, and the two oil cylinder supports are in pin joint with the fixed ends of the oil cylinders through rotating shafts. The plates of the combined bearing structure are connected in an inserted mode, and then the inserted positions are welded, so that the strength of the combined bearing structure is improved, and welding deformation is eliminated. Decomposition does not occur instantly, so that the safety coefficient is improved; the fixed end of the oil cylinder is connected with the combined bearing structure through the rotating shaft to form flexible connection, and the oil cylinder can rotate along with the rotating shaft to generate a certain rotating inclination angle to form swing floating.

Description

Technical Field

[0001] The utility model relates to the technical field of electric forklifts, in particular to an electric forklift with a combined load-bearing structure. Background Art

[0002] Electric forklifts are a kind of logistics handling equipment widely used in places such as warehouses, factories, logistics centers, and supermarkets. They are mainly used for handling and stacking pallet goods to improve the efficiency and safety of goods handling. Electric forklifts include a vehicle frame, a click, an oil cylinder, a fork, and an operation handle, etc. In existing electric forklifts, the oil cylinder and the operation handle are installed together, but this kind of installation has the following problems:

[0003] 1) The existing oil cylinder mounting seat is welded on the outer wall of the battery compartment. However, during the welding process, due to operations, there will be problems such as non-standard welding and deformation. During long-term use, there will be problems such as welding explosion, which will cause the tearing of the oil cylinder mounting seat, thereby affecting the service life of the electric forklift; at the same time, in order to improve the service life of the electric forklift, the thickness of the plate of the oil cylinder mounting seat is increased, resulting in waste of materials and increase in costs;

[0004] 2) During the use of the oil cylinder, it will tilt at a certain angle. However, in the existing oil cylinder and the oil cylinder mounting seat, a rigid connection is adopted, resulting in stress concentration between the oil cylinder and the oil cylinder mounting seat, generating fatigue cracks, increasing the risk of fracture, affecting the connection strength, and thus reducing the service life of the oil cylinder. Summary of the Invention

[0005] The technical problem to be solved by the utility model is: to solve the problems existing in the prior art in the above background art, and provide an electric forklift with a combined load-bearing structure that adopts a plug-in structure and then performs welding, increases the strength of the combined load-bearing structure, eliminates welding deformation, and the plates of the combined load-bearing structure will not decompose instantaneously.

[0006] The technical solution adopted by the utility model to solve its technical problems is: an electric forklift with a combined load-bearing structure, including a pedestal and a battery compartment. An oil cylinder is installed on the pedestal, and the fixed end of the oil cylinder is connected to the battery compartment through a combined load-bearing structure; the combined load-bearing structure includes a rear cover reinforcement plate and two oil cylinder brackets. The rear cover reinforcement plate is installed on the rear cover of the battery compartment. Oil cylinder brackets are inserted on both the front and rear sides of the rear cover reinforcement plate. An installation space for installing the oil cylinder is formed between the two oil cylinder brackets. The two oil cylinder brackets and the fixed end of the oil cylinder are pin-connected through a rotating shaft.

[0007] Further, the combined load-bearing structure further includes a top plate reinforcement plate. A groove is opened at the top end of each oil cylinder bracket, and the top plate reinforcement plate is inserted and installed in the groove and connects the two oil cylinder brackets into one body.

[0008] Further, the connection between the rear cover reinforcement plate and the two oil cylinder brackets is welded, and the connection between the two oil cylinder brackets and the top plate reinforcement plate is welded.

[0009] Further, a plurality of slots are formed on the surface of the rear cover reinforcement plate, and waist-shaped holes are also formed on the surface between the slots.

[0010] Further, the cross-sectional shape of the oil cylinder bracket in the vertical direction is "L" shaped. A tongue is provided on one side of the oil cylinder bracket and inserted into the slot in the rear cover reinforcement plate. Mounting holes are formed on the upper end surface of the oil cylinder bracket.

[0011] Further, an opening is formed at the fixed end of the oil cylinder, and the opening is coaxially arranged with the mounting hole in the oil cylinder bracket.

[0012] Further, the diameter of the opening is smaller than the diameter of the mounting hole.

[0013] The beneficial effects of the present utility model are as follows: 1) The plug-in structure is adopted between the plates of the combined load-bearing structure, and then the plug-in joints are welded, which not only increases the strength of the combined load-bearing structure but also eliminates welding deformation;

[0014] After long-term use, even if the weld seam is deformed or cracked, the plates of the combined load-bearing structure can still be connected together and will not decompose instantly, thereby improving the safety factor;

[0015] 2) The fixed end of the oil cylinder is connected to the combined load-bearing structure by a rotating shaft to form a flexible connection. During the use of the oil cylinder, when it tilts, the oil cylinder will rotate along with the rotating shaft, generating a certain rotation inclination angle to form a swing float, thereby reducing stress concentration, reducing the possibility of generating fatigue cracks and the risk of fracture, and enhancing the service life of the oil cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present utility model will be further described below with reference to the drawings and embodiments.

[0017] Figure 1 is a schematic structural diagram of the present utility model;

[0018] Figure 2 is a schematic structural diagram of the combined load-bearing structure of the present utility model;

[0019] Figure 3 is a schematic structural diagram of another direction of the figure of the present utility model;

[0020] Figure 4 is an exploded view of the combined load-bearing structure of the present utility model;

[0021] In the figure: 1. pedestal, 2. battery compartment, 3. oil cylinder, 4. combined load-bearing structure, 5. rotating shaft, 6. rear cover reinforcement plate, 7. oil cylinder bracket, 8. groove, 9. top plate reinforcement plate, 10. slot, 11. waist-shaped hole, 12. tongue, 13. mounting hole, 14. opening. Detailed implementation mode

[0022] Now, the present utility model will be further described in detail with reference to the accompanying drawings. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model.

[0023] As Figures 1 to 4 shown, an electric forklift with a combined load-bearing structure includes a pedestal 1 and a battery compartment 2. An oil cylinder 3 is installed on the pedestal 1, and the fixed end of the oil cylinder 3 is connected to the battery compartment 2 through a combined load-bearing structure 4.

[0024] The combined load-bearing structure 4 includes a rear cover reinforcement plate 6 and two oil cylinder brackets 7. The rear cover reinforcement plate 6 is installed on the rear cover of the battery compartment 2. Oil cylinder brackets 7 are inserted on both the front and rear sides of the rear cover reinforcement plate 6. An installation space for installing the oil cylinder 3 is formed between the two oil cylinder brackets 7. The fixed end of the oil cylinder 3 and the two oil cylinder brackets 7 are pinned through a rotating shaft 5.

[0025] The combined load-bearing structure 4 further includes a top plate reinforcement plate 9. A groove 8 is opened at the top end of each oil cylinder bracket 7. The top plate reinforcement plate 9 is inserted and installed in the groove 8 and connects the two oil cylinder brackets 7 into one body, improving the strength of the combined load-bearing structure 4.

[0026] The connection between the rear cover reinforcement plate 6 and the two oil cylinder brackets 7 is welded, and the connection between the two oil cylinder brackets 7 and the top plate reinforcement plate 9 is welded, further strengthening the connection strength of the combined load-bearing structure 4. With this dual setting, the safety factor of the electric forklift is improved.

[0027] As Figure 4 shown, a plurality of slots 10 are opened on the plate surface of the rear cover reinforcement plate 6, and waist-shaped holes 11 are also opened on the plate surface between the slots 10.

[0028] The cross-sectional shape of the oil cylinder bracket 7 in the vertical direction is in an "L" shape. The oil cylinder bracket 7 is arranged upside down. A tongue 12 for inserting into the slot 10 in the rear cover reinforcement plate 6 is provided on one side edge of the oil cylinder bracket 7. A mounting hole 13 is opened on the upper end plate surface of the oil cylinder bracket 7, and this mounting hole 13 is located on the cross plate of the oil cylinder bracket 7. At the same time, the contact between the vertical plate of the oil cylinder bracket 7 and the oil cylinder 3 is reduced, thereby improving the heat dissipation effect of the oil cylinder 3 and further increasing the service life of the oil cylinder 3.

[0029] The fixed end of the oil cylinder 3 is provided with an opening 14, which is coaxially arranged with the mounting hole 13 in the oil cylinder bracket 7, improving the relative position between the oil cylinder 3 and the oil cylinder bracket 7, making it more stable and firm, enhancing reliability and reducing the failure rate.

[0030] The diameter of the opening 14 is smaller than that of the mounting hole 13. Thus, during use, when tilting occurs, it has a certain swing and float, further reducing stress concentration, decreasing the possibility of generating fatigue cracks and the risk of fracture, and enhancing the service life of the oil cylinder.

[0031] Specifically:

[0032] First, insert the two oil cylinder brackets 7 into the slots 10 of the rear cover reinforcement plate 6 respectively;

[0033] Then, through the rotating shaft 5, pin-connect the fixed end of the oil cylinder 3 with the two oil cylinder brackets 7;

[0034] Then, insert the top reinforcement plate 9 into the grooves 8 of the two oil cylinder brackets 7. At this time, the plug-in mode of the combined weighing structure is formed;

[0035] Finally, weld the connection between the top reinforcement plate 9 and the two oil cylinder brackets 7 and the connection between the rear cover reinforcement plate 6 and the two oil cylinder brackets 7, thus completing the installation of the combined load-bearing structure.

[0036] Taking the ideal embodiments of the present utility model as the inspiration, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of this utility model. The technical scope of this utility model 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 electric transport vehicle with a combined load-bearing structure, characterized in that: It comprises a pedestal (1) and a battery compartment (2), wherein an oil cylinder (3) is mounted on the pedestal (1), and a fixed end of the oil cylinder (3) is connected to the battery compartment (2) via a combined load-bearing structure; The combined load-bearing structure comprises a rear cover reinforcement plate (6) and two cylinder brackets (7); the rear cover reinforcement plate (6) is mounted on the rear cover of the battery compartment (2); cylinder brackets (7) are inserted on both the front and rear sides of the rear cover reinforcement plate (6); an installation space for installing the cylinder (3) is formed between the two cylinder brackets (7); the two cylinder brackets (7) are pin-connected to the fixed ends of the cylinder (3) via a rotating shaft (5).

2. The electric transport vehicle with a combined load-bearing structure according to claim 1, characterized in that: The combined load-bearing structure also includes a top plate reinforcement plate (9). A groove (8) is provided at the top end of each oil cylinder bracket (7). The top plate reinforcement plate (9) is inserted and installed in the groove (8) and connects the two oil cylinder brackets (7) into one body.

3. The electric transport vehicle with a combined load-bearing structure according to claim 2, characterized in that: The connection between the rear cover reinforcement plate (6) and the two oil cylinder brackets (7) is welded, and the connection between the two oil cylinder brackets (7) and the top plate reinforcement plate (9) is welded.

4. The electric transport vehicle with a combined load-bearing structure according to claim 1, characterized in that: A plurality of slots (10) are provided on the plate surface of the rear cover reinforcement plate (6), and waist-shaped holes (11) are also provided on the plate surface between the slots (10).

5. The electric transport vehicle with a combined load-bearing structure according to claim 1, characterized in that: The cross-section of the oil cylinder bracket (7) in the vertical direction is in an "L" shape. A tongue (12) is provided on one side of the oil cylinder bracket (7) for inserting into a slot (10) in the rear cover reinforcement plate (6). A mounting hole (13) is provided on the upper end plate surface of the oil cylinder bracket (7).

6. The electric transport vehicle with a combined load-bearing structure according to claim 1, characterized in that: The fixed end of the oil cylinder (3) is provided with an opening (14), and the opening (14) is coaxially arranged with the mounting hole (13) in the oil cylinder bracket (7).

7. The electric transport vehicle with a combined load-bearing structure according to claim 6, characterized in that: The diameter of the opening (14) is smaller than the diameter of the mounting hole (13).

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