Electric light motorcycle frame

Abstract

The utility model relates to an electric light motorcycle frame, which comprises a motorcycle underframe, a main beam pipe, a side pipe, a motorcycle tail side pipe, a formed bearing frame, an upper assembly frame, a shock absorption lifting lug assembly, a connecting plate assembly, a shock absorption lifting lug, a shock absorption lifting lug, a shock absorption lifting lug, a shock absorption lifting lug, a shock absorption lifting lug, a shock absorption lifting lug, a shock absorption lifting lug, a shock absorption lifting lug, a shock absorption lifting lug, a shock absorption lifting lug and a shock absorption lifting lug, wherein the main beam pipe, the side pipe and the motorcycle tail side pipe form a bearing frame; and the tail side pipe is close to one end of the side pipe. The proportion of vehicle frame stamping parts is reduced, welding nuts on the vehicle frame are reduced, and welding assemblies are reduced, so that the manufacturing cost of the vehicle frame is reduced; the overall rigidity is improved.

Description

Technical Field

[0001] This utility model relates to the field of two-wheeled vehicle frame technology, and in particular to an electric moped frame. Background Technology

[0002] Currently, electric moped frames are generally assembled from tubular parts, stamped parts, and welded nuts, with stamped parts accounting for a large proportion and at least 15 welded nuts used, resulting in a large amount of welding on the frame and complex manufacturing process.

[0003] In modern industrial production, stamped parts are widely used. When stamped parts constitute a large proportion of a product, it is inevitable to combine multiple stamped parts to meet the overall structural and functional requirements of the product, resulting in multi-sequence component welding. Each stamped part has its specific shape, size, and functional requirements, necessitating precise positioning and assembly before welding. The materials and thicknesses of different stamped parts may vary, requiring the selection of appropriate welding parameters, such as welding current, voltage, and welding speed, for different situations. Moreover, multi-sequence component welding means performing welding operations in multiple steps and sequences, ensuring precise connection between each step and the previous process; even slight deviations can affect the stability of the overall structure and product quality. Utility Model Content

[0004] In response to the shortcomings of the existing manufacturing technology, the applicant provides an electric moped frame that reduces the use of stamped parts and the number of welds, thereby simultaneously improving the frame's rigidity and strength.

[0005] The technical solution adopted in this utility model is as follows:

[0006] An electric moped frame, comprising:

[0007] The chassis, including the main beam tubes, side tubes, and rear side tubes, forms a load-bearing frame.

[0008] The upper component frame, located above the side tubes of the chassis frame, is connected to the chassis frame. The connection points of the upper component frame are achieved using hot-melt drilling.

[0009] The shock absorber hanger assembly is located at the rear end of the side tube near the rear of the vehicle.

[0010] The connecting plate assembly is located at the end of the rear side tube near the side tube.

[0011] As a further improvement to the above technical solution:

[0012] The upper frame includes the secondary side tubes on both sides, the front tube of the pedal connecting the two secondary side tubes, and the front cross tube of the seat bucket.

[0013] The two side tubes, the front tube of the pedal, and the front cross tube of the seat bucket form a rectangular frame, which is located directly above the side tubes.

[0014] A longitudinal reinforcing tube is connected to the midpoint of the front tube of the pedal, and the longitudinal reinforcing tube is connected to the main beam tube.

[0015] The rectangular frame formed by the longitudinal reinforcing tube, the secondary side tube, the front tube of the pedal, and the front horizontal tube of the seat bucket is coplanar.

[0016] A reinforcing plate connects the secondary side tube to the side tube.

[0017] There is a gap between the projections of the secondary side tube and the side tube on the horizontal plane, ranging from 45mm to 60mm.

[0018] The side tube bends and extends to the main beam tube at the end near the front of the vehicle; the vertical distance between the connection point of the side tube and the main beam tube and the horizontal plane where the side tube is located ranges from 200mm to 250mm.

[0019] The shock absorber lug assembly includes a lug straight plate and a lug curved plate that are welded together, forming a space between the lug straight plate and the lug curved plate to accommodate the rear side tube.

[0020] The connecting plate assembly includes two connecting plates welded together, with a space between the two connecting plates formed to accommodate the rear side tube.

[0021] Battery support strips are connected between the side tubes, and the battery support strips are welded to the side tubes.

[0022] The beneficial effects of this utility model are as follows:

[0023] 1. The proportion of stamped parts on the frame is reduced. In the prior art, the amount of welding on the frame is large. The use of a large number of tubular parts in this application will reduce the amount of welding, resulting in a reduction in the manufacturing cost of the frame.

[0024] 2. The number of welded nuts on the frame is reduced, and a hot melt drilling process is used to reduce the frame manufacturing cost;

[0025] 3. The number of frame welding components is reduced, which reduces the development of frame welding tooling and molds, thereby lowering frame development costs and welding manufacturing costs;

[0026] 4. Increased rigidity at the front head tube and rear shock absorber lugs of the frame improves overall vehicle handling and enhances product appeal and added value. Attached Figure Description

[0027] Figure 1 This is a three-dimensional schematic diagram of the overall frame structure of the vehicle in this application.

[0028] Figure 2 This is a schematic diagram of the upper component framework structure of this application.

[0029] Figure 3 This is a schematic diagram of a set of shock-absorbing lug structures according to this application.

[0030] Figure 4 This is a schematic diagram of a set of connecting plates for this application.

[0031] The components include: 1. chassis frame; 2. upper component frame; 3. shock absorber lug assembly; 4. connecting plate assembly; 5. reinforcing plate;

[0032] 101. Main beam tube; 102. Side tube; 103. Rear side tube; 104. Battery support strip;

[0033] 201. Secondary side tube; 202. Pedal front tube; 203. Seat bucket front cross tube; 204. Longitudinal reinforcing tube;

[0034] 301. Straight plate with hanging lugs; 302. Curved plate with hanging lugs;

[0035] 401. Connecting folding plate. Detailed Implementation

[0036] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0037] like Figures 1-4 As shown, the electric moped frame of this embodiment includes:

[0038] The chassis 1, including the main beam tube 101, side tubes 102, and rear side tubes 103, forms a load-bearing frame.

[0039] The upper component frame 2 is located above the side tube 102 of the chassis frame 1 and is connected to the chassis frame 1. The connection point of the upper component frame 2 is achieved by hot-melt drilling.

[0040] The shock absorber hanger assembly 3 is located at the rear end of the side tube 103 near the rear of the vehicle.

[0041] The connecting plate assembly 4 is located at the end of the rear side tube 103 near the side tube 102.

[0042] The upper component frame 2 includes two secondary side tubes 201, a pedal front tube 202 connecting the two secondary side tubes 201, and a seat bucket front cross tube 203.

[0043] The two side tubes 201, the pedal front tube 202, and the seat bucket front cross tube 203 form a rectangular frame, which is located directly above the side tube 102.

[0044] A longitudinal reinforcing tube 204 is connected to the midpoint of the front tube 202 of the pedal, and the longitudinal reinforcing tube 204 is connected to the main beam tube 101.

[0045] The rectangular frame formed by the longitudinal reinforcing tube 204, the secondary side tube 201, the pedal front tube 202, and the seat bucket front cross tube 203 is coplanar.

[0046] A reinforcing plate 5 connects the secondary side tube 201 and the side tube 102.

[0047] There is a gap between the projections of the secondary side tube 201 and the side tube 102 on the horizontal plane, with a gap range of 45mm-60mm.

[0048] The side tube 102 bends and extends to the main beam tube 101 at the end near the front of the vehicle; the vertical distance between the connection point of the side tube 102 and the main beam tube 101 and the horizontal plane where the side tube 102 is located is in the range of 200mm-250mm.

[0049] The shock absorber lug assembly 3 includes a lug straight plate 301 and a lug curved plate 302 that are welded together, and a space is formed between the lug straight plate 301 and the lug curved plate 302 to accommodate the rear side tube 103.

[0050] The connecting plate assembly 4 includes two connecting plates 401 welded together, with a space between the two connecting plates 401 for accommodating the rear side tube 103.

[0051] A battery support strip 104 is connected between the side tubes 102, and the battery support strip 104 is welded to the side tubes 102.

[0052] The specific structure and working principle of this application are as follows:

[0053] like Figure 1 As shown, the vehicle frame of this application includes a lower chassis 1, which includes a main beam tube 101 and left and right side tubes 102 connected to the main beam tube 101. The main beam tube 101 is inclined and tends to be vertical; the main body of the side tubes 102 is located in the horizontal plane and serves as the bottom structure of the frame; the end of the side tube 102 near the main beam tube 101 extends upward at an angle until it is close to the main beam tube 101 and is welded to the main beam tube 101. The end of the side tube 102 near the rear of the vehicle extends backward at an angle to form a rear side tube 103.

[0054] The vertical distance between the connection point of the side pipe 102 and the main beam pipe 101 and the horizontal plane where the main body of the side pipe 102 is located is 200mm-250mm. The node value can be 200mm or 250mm, or the intermediate value can be 220mm, 230mm or 240mm.

[0055] For ease of description, in this embodiment, "front" and "rear" refer to the front and rear directions of the vehicle's travel, i.e., the front of the vehicle is "front" and the rear of the vehicle is "rear".

[0056] A battery support strip 104 is welded between the side tubes 102 of the chassis 1. The welded battery support strip 104 reduces the use of battery box punchings and further simplifies the chassis structure.

[0057] Based on the chassis 1, an upper component frame 2 is provided. The upper component frame 2 is the key to the structural simplification in this application. The upper component frame 2 includes auxiliary side tubes 201 on the left and right sides, and a front pedal tube 202 and a front seat tube 203 connecting the auxiliary side tubes 201 on both sides. The auxiliary side tubes 201, the front pedal tube 202, and the front seat tube 203 form a rectangle. There are 10 connecting holes on this rectangular frame, all of which adopt a hot melt drilling and direct tapping process, eliminating the welding nut process and reducing the manufacturing cost of the frame.

[0058] A reinforcing plate 5 connects the two secondary side tubes 201 and the two side tubes 102. Since there is a gap between the secondary side tubes 201 and the side tubes 102 in the horizontal direction, the reinforcing plate 5 has a slightly inclined structure. The gap between the secondary side tubes 201 and the side tubes 102 is projected onto the horizontal plane, and the gap ranges from 45mm to 60mm. The node values ​​can be 45mm or 60mm, or the intermediate values ​​can be 50mm, 52mm, or 55mm.

[0059] At the upper and lower ends of the rear side tube 103, shock absorber lug assembly 3 and connecting plate assembly 4 are respectively installed.

[0060] The structure of the shock-absorbing lug assembly 3 is as follows: Figure 3 As shown, each shock absorber hanger assembly 3 includes a hanger straight plate 301 and a hanger curved plate 302. The hanger curved plate 302 is located on the outside of the rear side tube 103, and the hanger straight plate 301 is located on the inside. The two are plug-welded together to form a connection structure.

[0061] The structure of the connecting plate assembly 4 is as follows Figure 4 As shown, the connection structure is formed by welding two symmetrical connecting plates 401 together.

[0062] Compared to traditional frames that use stamped parts and a large number of welded nuts, this application uses fewer welding nodes. The frame structure of the whole vehicle consists only of the underframe 1 and the upper component frame 2. On this basis, connection points are added on the rear side tube 103, which can not only ensure the strength of the whole vehicle, but also reduce the use of materials, reduce the development of welding tooling and molds, and greatly reduce the overall cost.

[0063] The above description is an explanation of the present utility model and not a limitation thereof. The scope of the present utility model is defined by the claims. Within the protection scope of the present utility model, any form of modification may be made.

Claims

1. An electric moped frame, characterized in that, include: The chassis (1), including the main beam tube (101), side tubes (102), and rear side tubes (103), forms a load-bearing frame. The upper component frame (2) is located above the side tube (102) of the chassis frame (1) and is connected to the chassis frame (1). The connection point of the upper component frame (2) is achieved by hot-melt drilling. The shock absorber hanger assembly (3) is located at the end of the rear side tube (103) near the rear of the vehicle. The connecting plate assembly (4) is located at the end of the rear side tube (103) near the side tube (102).

2. The electric moped frame as described in claim 1, characterized in that: The upper component frame (2) includes two secondary side tubes (201), a pedal front tube (202) connecting the two secondary side tubes (201), and a seat bucket front cross tube (203). The two side tubes (201), the pedal front tube (202), and the seat bucket front cross tube (203) form a rectangular frame, which is located directly above the side tube (102).

3. The electric moped frame as described in claim 2, characterized in that: A longitudinal reinforcing tube (204) is connected to the midpoint of the front tube of the pedal (202), and the longitudinal reinforcing tube (204) is connected to the main beam tube (101).

4. The electric moped frame as described in claim 3, characterized in that: The rectangular frame formed by the longitudinal reinforcing tube (204), the secondary side tube (201), the pedal front tube (202), and the seat bucket front cross tube (203) is coplanar.

5. The electric moped frame as described in claim 2, characterized in that: A reinforcing plate (5) is connected between the secondary side tube (201) and the side tube (102).

6. The electric moped frame as described in claim 5, characterized in that: There is a gap between the projections of the secondary side tube (201) and the side tube (102) on the horizontal plane, with a gap range of 45mm-60mm.

7. The electric moped frame as described in claim 1, characterized in that: The side tube (102) bends and extends to the main beam tube (101) at the end near the front of the vehicle; the vertical distance between the connection point of the side tube (102) and the main beam tube (101) and the horizontal plane where the side tube (102) is located is in the range of 200mm-250mm.

8. The electric moped frame as described in claim 1, characterized in that: The shock absorber lug assembly (3) includes a lug straight plate (301) and a lug bent plate (302) that are welded together, and a space is formed between the lug straight plate (301) and the lug bent plate (302) to accommodate the rear side tube (103).

9. The electric moped frame as described in claim 1, characterized in that: The connecting plate assembly (4) includes two connecting plates (401) welded together, with a space between the two connecting plates (401) for accommodating the rear side tube (103).

10. The electric moped frame as described in claim 1, characterized in that: A battery support strip (104) is connected between the side tubes (102), and the battery support strip (104) is welded to the side tubes (102).

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