Lightweight gearbox support for lightweight automobile
By designing a lightweight transmission bracket and utilizing carbon fiber materials and a buffer mechanism, the problem of poor rubber durability was solved, extending the life of the rubber pads and improving the stability of the transmission and the fuel economy of the vehicle.
Patent Information
- Application Number
- CN202520618313.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-03
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-04-03
AI Technical Summary
Existing lightweight transmission brackets have poor rubber durability under frequent vibration, which can cause the brackets to tilt or break, potentially causing the transmission to fall off and failing to effectively protect the transmission.
A lightweight gearbox bracket is designed, comprising a mounting plate, rubber pads, and a buffer mechanism. Carbon fiber material and an H-shaped structure are used to increase strength and flexibility. Airbag cushioning and reinforcing ribs are combined to enhance support. Multiple buffer mechanisms distribute vibration forces, extend the life of the rubber pads, and maintain the gearbox in a level position.
Extends the durability of rubber pads, reduces transmission vibration damage, improves fuel economy and dynamic performance, ensures transmission stability, and reduces the risk of breakage.
Smart Images

Figure CN223850432U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to gearbox support technical field, concretely is a light weight gearbox support for light automobile. BACKGROUND
[0002] The definition of light automobile is usually based on the weight, size and engine displacement of the vehicle and other factors. According to international standards, the total mass of a light automobile is generally not more than 3.5 tons. The automobile gearbox is a device that changes the speed and torque from the engine. The gearbox is mainly used to change the torque and speed of the engine crankshaft to meet the different requirements of driving wheels traction and vehicle speed under different driving conditions such as starting, accelerating, driving and overcoming various road obstacles. The light weight gearbox support is an important part of the light weight design of the automobile. Its purpose is to reduce the weight of the vehicle and improve fuel economy and dynamic performance under the premise of ensuring structural strength and function.
[0003] The existing light weight gearbox support is usually used to absorb the vibration energy transmitted by the whole vehicle by using rubber to avoid the transmission of whole vehicle vibration to the power assembly, thereby reducing the whole vehicle vibration. However, due to the frequent vibration of rubber, the durability of rubber will deteriorate, resulting in that the support cannot be restored to the original position, so that the gearbox is in an inclined state under the condition of deteriorated rubber durability. Therefore, when the whole vehicle is vibrated again, the support will be broken or the gearbox will fall off the support. UTILITY MODEL CONTENTS
[0004] The utility model aims at providing a light weight gearbox support for light automobile to solve the problems in the above background technology.
[0005] To achieve the above purpose, the utility model provides the following technical scheme:
[0006] A light weight gearbox support for light automobile, comprising:
[0007] The mounting plate is provided with two upper and lower symmetrical mounting plates, rubber pads are fixedly connected between the ends of the two mounting plates, a plurality of weight reduction strip holes are formed in the top surface of the mounting plate, and a weight reduction through hole is formed in the top surface of the mounting plate.
[0008] The buffer mechanism is arranged between the two mounting plates and can support and buffer the two mounting plates.
[0009] Further, the buffer mechanism comprises a limiting frame fixedly connected to the top surface of the lower mounting plate, an air bag is arranged in the limiting frame, and a supporting piece for supporting the upper mounting plate is arranged on the top surface of the air bag.
[0010] Furthermore, the support member includes a pressure plate that is slidably sleeved inside the limiting frame at the corresponding position, a support column is fixedly connected to the top surface of the pressure plate, and a fixing block is fixedly connected to the bottom surface of the mounting plate above at the top end of the support column.
[0011] Furthermore, the length and width of the fixing block are both greater than the diameter of the support column.
[0012] Furthermore, reinforcing ribs are embedded and fixed on both sides of the mounting plate along its length.
[0013] Furthermore, multiple spring plates are fixedly connected between the two mounting plates.
[0014] Furthermore, the mounting plate has an H-shaped cross-section.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] 1. By setting multiple switching mechanisms, the force on the rubber pads can be evenly distributed, thus mitigating the vibration force on the two rubber pads, extending the durability of the rubber pads, and making the service life of the rubber pads longer, thereby providing more comprehensive protection for the transmission. By adding carbon fiber material into the mounting plate, the flexibility and strength of the mounting plate can be increased. Moreover, the mounting plate with added carbon fiber material and the weight-reducing through holes and weight-reducing strip holes on the mounting plate can make the overall weight of the mounting plate lighter, thereby reducing the vehicle weight and improving fuel economy and dynamic performance.
[0017] 2. By inflating multiple airbags, the airbags inflate and lift the mounting plate above, keeping the transmission as level as possible. This allows the driver enough time to take the vehicle for repairs, thus minimizing damage to the transmission.
[0018] 3. By increasing the length and width of the fixing block to be greater than the diameter of the support column, the contact area between the support column and the upper mounting plate 1 can be increased, thus minimizing the possibility of deformation of the upper mounting plate.
[0019] 4. The strength and toughness of the mounting plate can be increased by reinforcing ribs, and multiple elastic plates can increase the buffering of the gearbox and support the two mounting plates, reducing the wear and tear of the rubber pads. By making the cross-section of the mounting plate into an H-shaped structure, the weight of the mounting plate can be reduced, and the H-shaped structure of the mounting plate has high structural strength and good seismic performance. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0021] Figure 2 This is a schematic diagram of the position of the spring plate in this utility model;
[0022] Figure 3 is the schematic diagram of the mounting plate in the utility model;
[0023] Figure 4 is the schematic diagram of the buffer mechanism structure in the utility model.
[0024] In the figure: 1, mounting plate; 11, rubber pad; 12, weight-reducing strip hole; 13, weight-reducing through hole; 14, reinforcing rib; 15, elastic plate; 2, buffer mechanism; 21, limiting frame; 22, air bag; 23, pressing plate; 24, support column; 25, fixed block. DETAILED DESCRIPTION
[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0026] Please refer to Figure 1 - Figure 4 In the embodiments of the utility model, a light-weight transmission case support for light-duty vehicle includes two mounting plates 1, rubber pads 11 are fixedly connected between the end portions of the two mounting plates 1, a plurality of weight-reducing strip holes 12 are formed in the top surface of the mounting plate 1 at both ends of the middle portion, weight-reducing through holes 13 are formed in the top surface of the mounting plate 1 at both ends, a buffer mechanism 2 capable of supporting and buffering the two mounting plates 1 is arranged between the two mounting plates 1, and the buffer mechanism 2 is provided with a plurality of.
[0027] Specifically, the lower mounting plate 1 is first fixed on the vehicle frame of the vehicle through bolts, and then the transmission case is fixed on the upper mounting plate 1 through bolts, when the vehicle runs on the road with pits and bumps, the vibration received by the vehicle is transmitted to the transmission case, and the vibration is transmitted to the upper mounting plate 1, since the two rubber pads 11 (as shown in Figure 2 ) and the plurality of buffer mechanisms 2 (as shown in Figure 1As shown in the diagram, the force of vibration is absorbed by the rubber pad 11 and the buffer mechanism 2, which reduces the vibration experienced by the transmission when the vehicle is driving on bumpy roads. Moreover, due to the presence of the buffer mechanism 2, the force on the rubber pad 11 can be evenly distributed, thus alleviating the vibration force on the two rubber pads 11, extending the durability of the rubber pads 11, and making the service life of the rubber pads 11 longer, thereby providing more comprehensive protection for the transmission. By adding carbon fiber material to the mounting plate 1, the flexibility and strength of the mounting plate 1 can be increased. Furthermore, the addition of carbon fiber material to the mounting plate 1 and the weight-reducing through holes 13 and weight-reducing strip holes 12 on the mounting plate 1 can make the overall weight of the mounting plate 1 lighter, thereby reducing the vehicle weight and improving fuel economy and dynamic performance.
[0028] Example 1
[0029] like Figure 4 As shown, in this embodiment, the buffer mechanism 2 includes a limiting frame 21 fixedly connected to the top surface of the lower mounting plate 1. An airbag 22 is provided inside the limiting frame 21. A support member for supporting the upper mounting plate 1 is provided on the top surface of the airbag 22. The support member includes a pressure plate 23 that is slidably sleeved inside the limiting frame 21 at the corresponding position. A support column 24 is fixedly connected to the top surface of the pressure plate 23. A fixing block 25 fixedly connected to the top of the support column 24 and fixedly connected to the bottom surface of the upper mounting plate 1 is fixedly connected to the top end of the support column 24. The length and width of the fixing block 25 are both greater than the diameter of the support column 24.
[0030] In this embodiment, the airbag 22 can reduce the vibration transmitted from the vehicle to the transmission, and it can also extend the service life of the rubber pad 11. Since the airbag 22 is usually equipped with an air valve, when the driver finds that the durability of the two rubber pads 11 has decreased to a certain extent (the driver can judge the durability of the rubber pad 11 by checking the thickness of the compressed rubber pad 11, or by observing the distance between the two mounting plates 1; if the distance between the two mounting plates 1 decreases, it means that the rubber pad 11 is compressed to a greater extent and its durability has decreased significantly), the airbags 22 are inflated to lift the upper mounting plate 1, so that the transmission is kept as level as possible, giving the driver enough time to take the vehicle for repair, thereby minimizing damage to the transmission. By making the length and width of the fixing block 25 greater than the diameter of the support column 24, the contact area between the support column 24 and the upper mounting plate 1 is increased, which can minimize the possibility of deformation of the upper mounting plate 1.
[0031] Example 2
[0032] like Figure 2 and Figure 3As shown, in the embodiment, the two sides of the mounting plate 1 are embedded with the reinforcing ribs 14 along the length direction thereof, a plurality of elastic plates 15 are fixedly connected between the two mounting plates 1, and the cross section of the mounting plate 1 is in H-shaped structure.
[0033] In the embodiment, the strength and toughness of the mounting plate 1 can be increased by the reinforcing ribs 14, the buffering to the gearbox can be increased by the plurality of elastic plates 15, the two mounting plates 1 can be supported, the durability consumption of the rubber pad 11 can be reduced, the weight of the mounting plate 1 can be reduced by the H-shaped structure of the cross section of the mounting plate 1, and the mounting plate 1 in H-shaped structure has high structural strength and good anti-seismic performance.
[0034] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all aspects as illustrative and not restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended to embrace all changes falling within the meaning and scope of the equivalent elements of the claims. Any reference signs in the claims should not be regarded as limiting the claims to which they belong.
[0035] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be properly combined to form other embodiments that those skilled in the art can understand.
Claims
1. A lightweight transmission bracket for light-duty vehicles, characterized in that, The utility model relates to a rubber pad mounting plate with buffer mechanism, including: The mounting plate (1) is provided with two up-down symmetries, rubber pad (11) is fixedly connected between the end of two mounting plate (1), the top surface middle part of mounting plate (1) both ends is opened in a plurality of weight reduction strip hole (12) in penetration, the top surface both ends of mounting plate (1) is opened in weight reduction through -hole (13) in penetration; Buffer mechanism (2) is set up between two mounting plate (1), can support the buffering of two mounting plate (1), buffer mechanism (2) is provided with a plurality.
2. The light-weight transmission bracket for a light car according to claim 1, characterized by Buffer mechanism (2) includes the limit frame (21) fixedly connected with the top surface of the mounting plate (1) below, the inside of limit frame (21) is provided with air bag (22), the top surface of air bag (22) is provided with the support piece for supporting the mounting plate (1) above.
3. The light-weight transmission bracket for a light car according to claim 2, characterized by Support piece includes the pressing plate (23) of sliding sleeve joint with the inside of limit frame (21) at corresponding position, the top surface of pressing plate (23) is fixedly connected with support column (24), the top end of support column (24) is fixedly connected with the fixed block (25) fixedly connected with the bottom surface of mounting plate (1) above.
4. The light-weight transmission bracket for a light car according to claim 3, characterized by The length and width of fixed block (25) are all greater than the diameter of support column (24).
5. The light-weight transmission bracket for a light car according to claim 4, characterized by The both sides of mounting plate (1) are embedded along its length direction and are fixed with reinforcing rib (14).
6. The light-weight transmission bracket for a light car according to claim 5, characterized by A plurality of elastic plates (15) are fixedly connected between two mounting plate (1).
7. The light-weight transmission bracket for a light car according to claim 6, characterized by The cross section of mounting plate (1) is H type structure.