Transmission gear box applied to new energy vehicle control bridge

Abstract

A transmission gear box applied to a new energy vehicle control bridge relates to the technical field of transmission parts of new energy vehicles and comprises a gear box body, a reinforcing disc and split plates, the reinforcing disc is integrally arranged on the outer edge of a box opening of the gear box body, and the split plates are arranged on the reinforcing disc and symmetrically arranged on the two sides of the box opening of the gear box body; the split plate comprises a fixing plate and a disassembling plate, the fixing plate is integrally arranged on the reinforcing disc, and the disassembling plate is connected to the end of the fixing plate through a bolt; a first mounting hole is formed in the split plate, and the first mounting hole is formed in the joint of the fixing plate and the disassembling plate; a second mounting hole and a third mounting hole are formed in the two sides of the gearbox body in a penetrating mode, the second mounting hole is formed close to the reinforcing disc, and the third mounting hole is formed close to the end of the gearbox body and used for positioning and mounting an internal gear shaft. After the transmission gear box is matched with a three-stage transmission gear, higher efficiency can be achieved, noise is reduced, and the vehicle transmission effect is improved.

Description

Technical Field

[0001] This invention relates to the field of transmission components technology for new energy vehicles, specifically a transmission gearbox applied to the control axle of new energy vehicles. Background Technology

[0002] The control axle transmission system of new energy vehicles is the core component of vehicle power transmission. As a key component of this system, the performance of the transmission gearbox directly affects the vehicle's transmission efficiency, operating noise, operating cost and reliability.

[0003] Existing control axle transmission gearboxes in new energy vehicles generally suffer from high losses, high costs, and high noise levels. Furthermore, their structural design has several shortcomings: some gearboxes have poor sealing performance, leading to lubricant leakage after the drive shaft passes through the housing; external dust, mud, moisture, and other impurities can easily enter the gearbox, causing wear or failure of precision components such as gears and bearings; some gearboxes struggle to balance structural rigidity and lightweight design, either increasing vehicle load by prioritizing strength or sacrificing structural stability for weight reduction, resulting in gearbox deformation or cracking; in addition, existing gearboxes lack ease of installation and maintenance, causing numerous inconveniences in practical use. Summary of the Invention

[0004] In view of the above situation and to overcome the defects of the prior art, the present invention provides a transmission gearbox applied to the control axle of new energy vehicles, which at least partially solves the problems mentioned in the background art.

[0005] The technical solution adopted in this invention is as follows: This invention provides a transmission gearbox for use in the control axle of new energy vehicles, comprising: The gearbox body, the reinforcing disc, and the split plate are provided. The reinforcing disc is integrally provided on the outer edge of the gearbox body opening. The split plate is provided on the reinforcing disc and is symmetrically provided on both sides of the gearbox body opening. The split plate includes a fixing plate and a disassembly plate. The fixing plate is integrally mounted on the reinforcing plate, and the disassembly plate is bolted to the end of the fixing plate. The split plate is provided with a first mounting hole, which is located at the connection between the fixing plate and the disassembly plate; The gearbox body has a second mounting hole and a third mounting hole on both sides. The second mounting hole is located near the reinforcing plate, and the third mounting hole is located near the end of the gearbox body. These are used for positioning and installing the internal gear shaft.

[0006] Among them, the first mounting hole, the second mounting hole, and the third mounting hole are all circular through holes with their centers on the same axis; The diameter of the first mounting hole is larger than the diameter of the third mounting hole, and the diameter of the third mounting hole is larger than the diameter of the second mounting hole.

[0007] In a further embodiment, a mounting plate is integrally extended from one side wall of the gearbox body, and the third mounting hole is provided through the mounting plate; The mounting plate extends to the side of the gearbox and has multiple sets of fourth mounting holes.

[0008] In a further embodiment, the mounting plate has slots on both wings, the depth of which extends to the bottom of the gearbox body.

[0009] In one embodiment, the walls of the second and third mounting holes on the other side wall of the gearbox body extend outward to form a mounting portion; A first reinforcing rib is provided between the mounting part and the reinforcing plate, and the first reinforcing rib and the gearbox body are integrally formed.

[0010] In a further embodiment, a second reinforcing rib is provided at the connection between the gearbox body and the reinforcing disc on both sides, and the second reinforcing rib and the gearbox body are integrally formed.

[0011] In a further embodiment, the inner wall of the gearbox body is provided with transverse ribs, which are evenly distributed along the inner wall of the gearbox body to resist bending deformation and stress concentration generated during gear transmission, prevent the gearbox body from deforming and affecting the transmission accuracy, and avoid excessive local stress leading to shell cracking.

[0012] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: This invention achieves transmission function by installing gear transmission inside the main body. Corresponding transmission shafts are installed in three mounting holes to transmit power. The main body not only protects the gears but also plays a protective role during gear operation. The three-stage transmission has higher efficiency, lower noise, better comfort, and lower manufacturing cost, making it highly competitive in the market. The split plate adopts a combination structure of a fixed plate and a detachable plate, which realizes the sealed isolation after the drive shaft is installed, preventing lubricating oil leakage and impurities from entering, and also facilitates installation and maintenance. By using the first and second reinforcing ribs in conjunction with the grooved structure of the mounting plate, a lightweight design is achieved while ensuring the rigidity and strength of the main structure of the gearbox. This reduces the load on the vehicle body, prevents deformation or cracking of the gearbox, and extends its service life. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the transmission gearbox applied to the control axle of a new energy vehicle according to an embodiment of the present invention. Figure 1 ; Figure 2 This is a three-dimensional structural diagram of the transmission gearbox applied to the control axle of a new energy vehicle according to an embodiment of the present invention. Figure 2 ; Figure 3 This is a front view of the transmission gearbox applied to the control axle of a new energy vehicle according to an embodiment of the present invention; Figure 4 This is a rear view of the transmission gearbox applied to the control axle of a new energy vehicle according to an embodiment of the present invention; Figure 5 This is a bottom view of the transmission gearbox applied to the control axle of a new energy vehicle according to an embodiment of the present invention.

[0014] Among them, 1. Gearbox body, 11. Mounting part, 12. First reinforcing rib, 13. Second reinforcing rib, 14. Rib; 2. Reinforced disc; 3. Split panel; 31. Fixing panel; 32. Disassembly panel; 4. First mounting hole; 5. Second mounting hole; 6. Third mounting hole; 7. Mounting plate; 71. Fourth mounting hole; 72. Groove.

[0015] The accompanying drawings are provided to further understand the embodiments and form part of the specification. They are used together with the embodiments for explanation and do not constitute a limitation on the embodiments. Detailed Implementation

[0016] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection.

[0017] In the description of the embodiments, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments 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. Therefore, they should not be construed as limitations on the embodiments.

[0018] Existing control axle transmission gearboxes in new energy vehicles generally suffer from high losses, high costs, and high noise levels. Furthermore, their structural design has several shortcomings: some gearboxes have poor sealing performance, leading to lubricant leakage after the drive shaft passes through the housing; external dust, mud, moisture, and other impurities can easily enter the gearbox, causing wear or failure of precision components such as gears and bearings; some gearboxes struggle to balance structural rigidity and lightweight design, either increasing vehicle load by prioritizing strength or sacrificing structural stability for weight reduction, resulting in gearbox deformation or cracking; in addition, existing gearboxes lack ease of installation and maintenance, causing numerous inconveniences in practical use.

[0019] After recognizing the above problems, this application proposes and discloses a transmission gearbox for the control axle of a new energy vehicle that has a reasonable structural design, high transmission efficiency, low noise, and good sealing performance.

[0020] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, this disclosure provides a transmission gearbox for a control axle in a new energy vehicle, comprising: The gearbox body 1, the reinforcing disc 2, and the split plate 3 are provided. The reinforcing disc 2 is integrally provided on the outer edge of the gearbox body 1. The split plate 3 is provided on the reinforcing disc 2 and is symmetrically provided on both sides of the gearbox body 1. The split plate 3 includes a fixing plate 31 and a disassembly plate 32. The fixing plate 31 is integrally disposed on the reinforcing plate 2, and the disassembly plate 32 is bolted to the end of the fixing plate 31. The split plate 3 is provided with a first mounting hole 4, which is located at the connection between the fixing plate 31 and the disassembly plate 32. The gearbox body 1 has a second mounting hole 5 and a third mounting hole 6 through both sides. The second mounting hole 5 is located near the reinforcing plate 2, and the third mounting hole 6 is located near the end of the gearbox body 1, for positioning and installing the internal gear shaft.

[0021] In this embodiment, during the assembly of the control bridge, the split plate 3 can be inserted into the differential housing of the control bridge, and the reinforcing plate 2 is fixedly connected to the differential housing of the control bridge by bolts.

[0022] A three-stage transmission gear set can be installed inside the wheel box body. The three-stage transmission gear set cooperates with the drive shaft installed in the first mounting hole 4, the second mounting hole 5, and the third mounting hole 6 to achieve power transmission.

[0023] The disassembly plate 32 can be removed and installed by tightening the bolts, allowing the control bridge drive shaft to move through the split plate 3. The split plate 3 can serve as a sealing and isolation structure inside the gearbox housing, filling the gap after the drive shaft passes through the housing, preventing lubricating oil leakage inside the gearbox, and blocking external dust, mud, moisture and other impurities from entering the gearbox, thus preventing wear or failure of precision components such as gears and bearings due to contamination.

[0024] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the first mounting hole 4, the second mounting hole 5, and the third mounting hole 6 are all circular through holes with their centers on the same axis. The diameter of the first mounting hole 4 is larger than the diameter of the third mounting hole 6, and the diameter of the third mounting hole 6 is larger than the diameter of the second mounting hole 5.

[0025] In this embodiment, all three sets of mounting holes are circular through holes with collinear centers, which ensures the coaxiality of the drive shaft and gear shaft, reduces eccentric wear during transmission, improves transmission efficiency, and reduces power loss.

[0026] Mounting holes of different diameters are precisely adapted to different specifications of drive shafts or gear shafts in three-stage transmission, so as to achieve smooth power transmission step by step and further reduce operating noise.

[0027] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a mounting plate 7 is integrally extended from one side wall of the gearbox body 1, and the third mounting hole 6 is provided through the mounting plate 7; The mounting plate 7 extends to the side of the gearbox and has multiple sets of fourth mounting holes 71.

[0028] In this embodiment, the multiple sets of fourth mounting holes 71 on the side of the mounting plate 7 provide multiple mounting options for the gearbox and other vehicle components, adapting to the installation requirements of different new energy vehicle control bridges, making the connection more robust and reliable, and the assembly more flexible.

[0029] like Figure 2 and Figure 3 As shown, the mounting plate 7 has slots 72 on both wings, and the slots 72 extend to the bottom of the gearbox body 1.

[0030] In this embodiment, the slot 72 can optimize the vehicle body load and reduce the overall weight of the wing and gearbox without reducing structural rigidity.

[0031] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the second mounting hole 5 and the third mounting hole 6 on the other side wall of the gearbox body 1 extend outward to form a mounting part 11; A first reinforcing rib 12 is provided between the mounting part 11 and the reinforcing plate 2, and the first reinforcing rib 12 and the gearbox body 1 are integrally formed.

[0032] In this embodiment, the first reinforcing rib 12 can enhance the connection strength between the mounting part 11 and the reinforcing disc 2, and resist the radial stress and vibration generated during gear transmission.

[0033] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the gearbox body 1 has a second reinforcing rib 13 at the connection between the two sides and the reinforcing disc 2. The second reinforcing rib 13 and the gearbox body 1 are integrally formed.

[0034] In this embodiment, the second reinforcing rib 13 can improve the rigidity of the connection, reduce vibration transmission during the transmission process, indirectly reduce operating noise, and at the same time ensure the stability of the overall structure of the gearbox, and prevent loose connections from affecting power transmission efficiency.

[0035] like Figure 5 As shown, the inner wall of the gearbox body 1 is provided with transverse ribs 14. The ribs 14 are evenly distributed along the inner wall of the gearbox body 1 to resist the bending deformation and stress concentration generated during gear transmission, prevent the gearbox body from deforming and affecting the transmission accuracy, and avoid excessive local stress leading to shell cracking.

[0036] It should be noted that, in this document, relational terms such as “first” and “second” are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0037] Although embodiments have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit.

[0038] The embodiments have been described above, and such description is not restrictive. The figures shown are only one embodiment, and the actual structure is not limited to this. In short, if a person skilled in the art is inspired by this description and designs a similar structure and embodiment without departing from the inventive spirit, such design should fall within the scope of protection.

Claims

1. A transmission gearbox applied to the control axle of a new energy vehicle, characterized in that, include: The gearbox body (1), the reinforcing disc (2) and the split plate (3) are integrally provided on the outer edge of the gearbox body (1) and the split plate (3) is provided on the reinforcing disc (2) and the split plate (3) is symmetrically provided on both sides of the gearbox body (1) opening. The split plate (3) includes a fixing plate (31) and a disassembly plate (32). The fixing plate (31) is integrally mounted on the reinforcing plate (2), and the disassembly plate (32) is connected to the end of the fixing plate (31) by bolts. The split plate (3) is provided with a first mounting hole (4), which is located at the connection between the fixed plate (31) and the disassembly plate (32). The gearbox body (1) has a second mounting hole (5) and a third mounting hole (6) through both sides. The second mounting hole (5) is located near the reinforcing plate (2), and the third mounting hole (6) is located near the end of the gearbox body (1) for positioning and installing the internal gear shaft.

2. The transmission gearbox applied to the control axle of a new energy vehicle according to claim 1, characterized in that, The first mounting hole (4), the second mounting hole (5), and the third mounting hole (6) are all circular through holes, and the centers of the three are located on the same axis. The diameter of the first mounting hole (4) is larger than the diameter of the third mounting hole (6), and the diameter of the third mounting hole (6) is larger than the diameter of the second mounting hole (5).

3. The transmission gearbox applied to the control axle of a new energy vehicle according to claim 1, characterized in that, The gearbox body (1) has a mounting plate (7) integrally extended from one side wall, and the third mounting hole (6) is provided through the mounting plate (7); The mounting plate (7) extends to the side of the gearbox and has multiple sets of fourth mounting holes (71).

4. The transmission gearbox applied to the control axle of a new energy vehicle according to claim 3, characterized in that, The mounting plate (7) has slots (72) on both wings, and the slots (72) extend to the bottom of the gearbox body (1).

5. The transmission gearbox applied to the control axle of a new energy vehicle according to claim 3, characterized in that, The second mounting hole (5) and the third mounting hole (6) on the other side wall of the gearbox body (1) extend outward to form a mounting part (11). A first reinforcing rib (12) is provided between the mounting part (11) and the reinforcing plate (2), and the first reinforcing rib (12) and the gearbox body (1) are integrally formed.

6. The transmission gearbox applied to the control axle of a new energy vehicle according to claim 1, characterized in that, The gearbox body (1) is provided with a second reinforcing rib (13) at the connection between the two sides and the reinforcing disc (2). The second reinforcing rib (13) and the gearbox body (1) are integrally formed.

7. The transmission gearbox applied to the control axle of a new energy vehicle according to claim 1, characterized in that, The gearbox body (1) has ribs (14) arranged laterally on the inner wall, and the ribs (14) are evenly distributed along the inner wall of the gearbox body (1).

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