Modularized frame assembly of double-drive electric balance forklift

Abstract

The utility model relates to the technical field of forklift components, and discloses a modularized frame assembly of a double-drive electric balance forklift, which comprises a main frame and an auxiliary frame, the main frame comprises a main bearing frame, a reinforcing frame is fixedly welded on the inner side of the main bearing frame, a first connecting frame is fixedly welded below the rear end of the main bearing frame, and a second connecting frame is fixedly welded below the rear end of the main bearing frame. A second connecting frame is fixedly welded to the upper portion of the rear end of the main bearing frame, and two supporting frames are symmetrically welded between the first connecting frame and the second connecting frame. The shape and the size of the connection structure are optimized, that is, the main frame and the auxiliary frame which are welded are arranged, the reinforcing frame is arranged in the main frame, and the auxiliary frame also adopts a double-component bearing structure design, so that the stress concentration degree is reduced, the premature fatigue crack of a connection point is avoided, and the service life of the vehicle is prolonged. And the service life of the frame assembly is further ensured.

Description

Technical Field

[0001] This utility model relates to the field of forklift component technology, specifically a modular frame assembly for a dual-drive electric balance forklift. Background Technology

[0002] The modular frame assembly of a dual-drive electric counterbalance forklift is a key structural component of the forklift. It is a structural system in which the frame is designed as a combination of multiple modules. These modules typically include drive modules, load-bearing modules, and counterbalance modules, which are combined together through specific connection methods to form a complete frame.

[0003] The modular frame assembly of existing dual-drive electric counterbalance forklifts still has the following problems during use: stress concentration may occur at the module connection points. During frequent forklift operation, the connection points are subjected to alternating loads, and stress concentration may cause fatigue cracks to appear at the connection points prematurely, affecting the service life of the frame assembly. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a modular frame assembly for a dual-drive electric balance forklift, solving the problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a modular frame assembly for a dual-drive electric balance forklift, comprising a main frame and a sub-frame. The main frame includes a main support frame, a reinforcing frame fixedly welded to the inner side of the main support frame, a first connecting frame fixedly welded to the lower rear end of the main support frame, and a second connecting frame fixedly welded to the upper rear end of the main support frame. Two support frames are symmetrically welded between the first and second connecting frames. A first mounting seat is fixedly welded to the upper rear end of the support frames, and a second mounting seat is fixedly welded to the rear end of the first connecting frames. The sub-frame includes a connecting section rotatably mounted within the second mounting seat. A first connecting rod is fixedly welded to the rear end of the connecting section. The two first connecting rods are fixedly welded to the same second connecting rod at their rear ends. A dual load-bearing mechanism is provided at the rear end of the second connecting rod.

[0008] As a further improvement of this utility model: a third connecting frame is fixedly welded to the front end of the main support frame, and a third mounting seat is fixedly welded to the rear side of each end of the third connecting frame.

[0009] As a further improvement of this utility model: a first support plate is fixedly welded to the front side of each end of the third connecting frame, and a second support plate is fixedly welded to both sides of the rear end of the third connecting frame.

[0010] As a further embodiment of this utility model: the dual load-bearing mechanism includes a first load-bearing frame fixedly welded to one side of the rear end of the second connecting rod, and the dual load-bearing mechanism also includes a second load-bearing frame fixedly welded to the other side of the rear end of the second connecting rod, and an end block is fixedly welded to each end of the second connecting rod.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. In this utility model, by adopting the optimized shape and size of the connection structure, namely, setting a welded main frame and a sub-frame, the main frame is provided with a reinforcing frame, and the sub-frame also adopts a dual-component load-bearing structure design, so as to reduce the stress concentration, avoid premature fatigue cracks at the connection points, and thus ensure the service life of the frame assembly.

[0013] 2. In this utility model, by adopting a modular assembly structure design of the main frame and the subframe, the two are rotatably connected, which allows for convenient disassembly and assembly. It is convenient to replace either the main frame or the subframe if either is damaged. Attached Figure Description

[0014] Figure 1 The overall three-dimensional structure of this utility model Figure 1 ;

[0015] Figure 2 The overall three-dimensional structure of this utility model Figure 2 ;

[0016] Figure 3 This is a perspective view of the front frame of the present invention;

[0017] Figure 4 This is a perspective view of the rear frame of this utility model.

[0018] In the diagram: 1. Main frame; 2. Subframe; 11. Main support frame; 12. First connecting frame; 13. Second connecting frame; 14. Support frame; 15. First mounting seat; 16. Second mounting seat; 17. Third connecting frame; 18. Third mounting seat; 19. First support plate; 110. Second support plate; 21. Connecting section; 22. First connecting rod; 23. Second connecting rod; 24. End block; 25. First load-bearing frame; 26. Second load-bearing frame. Detailed Implementation

[0019] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0020] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] Please see Figures 1-4 In this embodiment of the present invention, a modular frame assembly of a dual-drive electric balance forklift includes a main frame 1 and a sub-frame 2. The main frame 1 includes a main support frame 11, a reinforcing frame fixedly welded to the inner side of the main support frame 11, a first connecting frame 12 fixedly welded to the lower rear end of the main support frame 11, a second connecting frame 13 fixedly welded to the upper rear end of the main support frame 11, two support frames 14 symmetrically welded between the first connecting frame 12 and the second connecting frame 13, a first mounting base 15 fixedly welded to the upper rear end of the support frame 14, and a second mounting base 16 fixedly welded to the rear end of the first connecting frame 12. The subframe 2 includes a connecting section 21 rotatably mounted in the second mounting base 16. A first connecting rod 22 is fixedly welded to the rear end of the connecting section 21. The same second connecting rod 23 is fixedly welded to the rear end of the two first connecting rods 22. A double load-bearing mechanism is provided at the rear end of the second connecting rod 23. The overall structure adopts an optimized shape and size of the connection structure, that is, it is equipped with a welded main frame 1 and a subframe 2. A reinforcing frame is provided in the main frame 1, and the subframe 2 also adopts a double component load-bearing structure design to reduce stress concentration, avoid premature fatigue cracks at the connection points, and thus ensure the service life of the frame assembly.

[0023] The main support bracket 11 has a third connecting bracket 17 fixedly welded to its front end. Each end of the third connecting bracket 17 has a third mounting seat 18 fixedly welded to its rear side. The drive module can be arranged by cooperating with the installation components through the third mounting seat 18.

[0024] A first support plate 19 is fixedly welded to the front side of each end of the third connecting frame 17, and a second support plate 110 is fixedly welded to both sides of the rear end of the third connecting frame 17. The support plates can be used in conjunction with the overall frame to support the cab of the vehicle body above.

[0025] The dual load-bearing mechanism includes a first load-bearing frame 25 fixedly welded to one side of the rear end of the second connecting rod 23, and a second load-bearing frame 26 fixedly welded to the other side of the rear end of the second connecting rod 23. Each end of the second connecting rod 23 is fixedly welded with an end block 24. The whole adopts a modular assembly structure design of the main frame 1 and the sub-frame 2, which are rotatably connected to each other, allowing for convenient disassembly and assembly. It can be replaced when either the main frame 1 or the sub-frame 2 is damaged, which is quite convenient.

[0026] The working principle of this utility model is as follows: The overall structure adopts an optimized shape and size of connection structure, namely, it is equipped with a welded main frame 1 and a sub-frame 2. The main frame 1 is equipped with a reinforcing frame, and the sub-frame 2 also adopts a dual-component load-bearing structure design to reduce stress concentration and avoid premature fatigue cracks at the connection points, thereby ensuring the service life of the frame assembly. The drive module can be arranged by mounting components through the third mounting seat 18. The support plate can be used to support the cab of the vehicle body above the overall frame. Since the overall structure adopts a modular assembly structure design of the main frame 1 and the sub-frame 2, the two are rotatably connected, which can be easily disassembled and assembled. It is convenient to replace either the main frame 1 or the sub-frame 2 if either is damaged.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A modular frame assembly for a dual-drive electric balance forklift, comprising a main frame (1) and a subframe (2). characterized in that The main frame (1) includes a main support frame (11), a reinforcing frame is fixedly welded to the inner side of the main support frame (11), a first connecting frame (12) is fixedly welded to the lower rear end of the main support frame (11), and a second connecting frame (13) is fixedly welded to the upper rear end of the main support frame (11). Two support frames (14) are symmetrically welded between the first connecting frame (12) and the second connecting frame (13). A first mounting seat (15) is fixedly welded above the rear end of the support frame (14), and a second mounting seat (16) is fixedly welded to the rear end of the first connecting frame (12). The subframe (2) includes a connecting section (21) rotatably mounted inside the second mounting base (16). A first connecting rod (22) is fixedly welded to the rear end of the connecting section (21). The two first connecting rods (22) are fixedly welded to the rear ends of the same second connecting rod (23). A double load-bearing mechanism is provided at the rear end of the second connecting rod (23).

2. The modular frame assembly of a dual drive electric balance forklift truck of claim 1, wherein: The main support bracket (11) has a third connecting bracket (17) fixedly welded to its front end.

3. A modular frame assembly for a dual drive electric counterbalanced fork truck as set forth in claim 2, characterized in that: A third mounting base (18) is fixedly welded to the rear side of each end of the third connecting frame (17).

4. The modular frame assembly of a dual drive electric balance forklift truck of claim 2, wherein: The third connecting frame (17) has a first support plate (19) fixedly welded to the front side of each end.

5. The modular frame assembly of a dual drive electric balance forklift truck of claim 2, wherein: The third connecting frame (17) has a second support plate (110) fixedly welded to each of its two rear ends.

6. The modular frame assembly of a dual drive electric balance forklift truck of claim 1, wherein: The dual load-bearing mechanism includes a first load-bearing frame (25) fixedly welded to one side of the rear end of the second connecting rod (23), and the dual load-bearing mechanism also includes a second load-bearing frame (26) fixedly welded to the other side of the rear end of the second connecting rod (23).

7. The modular frame assembly of a dual drive electric balance forklift truck of claim 1, wherein: An end block (24) is fixedly welded to each end of the second connecting rod (23).

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