A protective frame for electric vehicle gearbox

Abstract

This utility model discloses an electric vehicle transmission protective frame, belonging to the field of transmission protection technology. The electric vehicle transmission protective frame includes a base plate, a base mounted on the upper end of the base plate, an electric vehicle transmission body mounted on the upper end of the base plate, and a fixing mechanism mounted on the upper end of the base plate. This device, through its shock-absorbing and protective mechanism, can support and dampen the electric vehicle transmission body, preventing vibrations from reducing the lifespan of the transmission body when the electric vehicle moves on bumpy roads. It provides good protection for the electric vehicle transmission body. The fixing mechanism allows for convenient and quick installation and disassembly of the shock-absorbing and protective mechanism, saving time. It also allows for easy maintenance or replacement of the shock-absorbing and protective mechanism after disassembly, ensuring good shock absorption performance.

Description

Technical Field

[0001] This utility model relates to the field of transmission protection, and more specifically, to a transmission protection bracket for electric vehicles. Background Technology

[0002] A transmission is a mechanism used to change the speed and torque from an engine. It can change the transmission ratio between the output and input shafts, either fixedly or in gears. Also known as a gearbox, the transmission in an electric vehicle is a core component for transmitting power and regulating vehicle speed, and its operating environment is directly affected by the vehicle's driving conditions. Existing electric vehicle transmissions are often mounted on the vehicle body via a mounting bracket for the transmission housing. Lacking protective mechanisms, these transmissions cannot effectively dampen or support vibrations during use. On unpaved roads, bumpy urban roads, or under heavy loads, vehicle vibrations are directly transmitted to the transmission through the frame. This vibration can cause accelerated wear on internal gears, bearings, and other precision components due to high-frequency impacts, shortening the transmission's lifespan. How to improve these problems has become a pressing issue for those skilled in the art. Utility Model Content

[0003] To overcome the above shortcomings, this utility model provides an electric vehicle transmission protective frame, which aims to improve the existing electric vehicle transmissions, which are often installed through the transmission housing mounting bracket and the electric vehicle body. The transmission lacks a protective mechanism and cannot effectively dampen and support the transmission in use. In unpaved roads, bumpy urban roads, or heavy-duty usage scenarios, vehicle body vibration will be directly transmitted to the transmission through the frame. The transmission is prone to accelerated wear of internal gears, bearings and other precision components due to high-frequency impact caused by vibration, which shortens the service life.

[0004] This utility model is implemented as follows: an electric vehicle gearbox protective frame includes a base plate, a base is installed on the upper end of the base plate, an electric vehicle gearbox body is installed on the upper end of the base plate, a fixing installation mechanism is installed on the upper end of the base plate, and a shock-absorbing protective mechanism is detachably installed on one side of the base plate through the fixing installation mechanism.

[0005] In a preferred embodiment of this utility model, the shock absorption and protection mechanism includes a connecting block, which is detachably installed on one side of the base plate. The connecting block is provided with an installation groove and a bottom rod is installed in the installation groove. A shock-absorbing spring is installed at the inner end of the bottom rod. A movable frame rod is installed at one end of the shock-absorbing spring and is slidably inserted into the inner wall of the bottom rod. A contact block is installed at one end of the movable frame rod.

[0006] In the preferred embodiment of this utility model, the contact block is designed in an arc shape, with the bottom end of the base rod contacting the vehicle body. Through the contact block and the movable frame rod, combined with the elasticity of the shock-absorbing spring, the electric vehicle transmission body can be damped and supported, preventing the vibration generated when the electric vehicle body moves on bumpy roads from reducing the service life of the electric vehicle transmission body. The arc shape of the contact block, combined with the shock-absorbing spring, facilitates the support and damping of the electric vehicle transmission body. At the same time, the connecting block allows for easy disassembly of the shock-absorbing protection mechanism, enabling timely maintenance of the shock-absorbing spring and preventing the loss of elasticity of the shock-absorbing protection mechanism from affecting the damping effect.

[0007] In a preferred embodiment of this utility model, the fixing and installation mechanism includes a protective shell and a lead screw. The protective shell is mounted on the upper end of a base plate, and the lead screw is rotatably mounted on the upper end of the base plate. The other end of the lead screw is rotatably connected to the inner end of the protective shell. A sleeve plate is threaded onto the lead screw. A fixing block is mounted on one side of the sleeve plate. A connecting groove is provided on one side of the base plate to cooperate with the connecting block. The fixing block slides through one end of the base plate and the connecting groove. One end of the connecting block is provided with a fixing groove to cooperate with the fixing block. The connecting block is initially connected to the base plate through the connecting groove. The rotation of the lead screw causes the sleeve plate to move, so that the fixing block cooperates with the fixing groove of the connecting block to fix the connecting block, thereby completing the fixing of the shock absorption and protection mechanism.

[0008] In the preferred embodiment of this utility model, two sets of connecting blocks and fixing blocks are provided in cooperation. The two sets of fixing blocks are installed on both sides of the sleeve plate. The electric vehicle transmission body is supported and damped from two positions below the electric vehicle transmission body by the two sets of shock absorption and protection mechanisms, thereby enhancing the shock absorption effect.

[0009] In a preferred embodiment of this utility model, an auxiliary block is installed on one side of the fixing block, and an auxiliary groove is provided on the inner side of the protective shell in conjunction with the auxiliary block. The auxiliary block is disposed inside the protective shell, thereby enhancing the stability of the fixing block and the sleeve plate during movement.

[0010] In a preferred embodiment of this utility model, an installation rod is rotatably mounted inside the protective shell, a worm gear is fixedly mounted at one end of the installation rod, and a worm wheel is fixedly sleeved on the outside of the lead screw. The worm wheel and the worm gear are meshed together. Rotation of the installation rod causes the worm gear to drive the worm wheel to rotate, which in turn causes the lead screw to rotate. At the same time, the self-locking property of the worm gear prevents the lead screw from rotating in the opposite direction, thereby enhancing the stability and safety of the installation.

[0011] In a preferred embodiment of this utility model, the mounting rod rotatably passes through one end of the protective shell, and an external support is mounted on one end of the mounting rod.

[0012] In a preferred embodiment of this utility model, mounting blocks are installed on both sides of the base plate. The mounting blocks are provided with threaded grooves and are fixed to the vehicle body by bolts, for installing the device and the electric vehicle body.

[0013] The beneficial effects of this utility model are as follows: The electric vehicle gearbox protective frame obtained by the above design can absorb the vibration generated when the electric vehicle moves on bumpy roads through the contact block and moving frame rod in conjunction with the base rod and shock-absorbing spring, thus preventing damage to the electric vehicle gearbox body and reducing its service life. When the shock-absorbing protective mechanism has been used for a long time and needs to be replaced or maintained to ensure good support and shock absorption, the mounting rod is rotated by the external support. The rotation of the mounting rod causes the worm gear to drive the worm wheel to rotate, which in turn causes the lead screw to rotate. The rotation of the lead screw causes the sleeve plate to move the fixing block, so that the fixing block no longer engages with the fixing groove of the connecting block to fix the connecting block. The connecting block can then be removed from the connecting groove and reinstalled after maintenance. This device supports and dampens the electric vehicle's transmission body through a shock-absorbing and protective mechanism, preventing vibrations from reducing the transmission's lifespan when the electric vehicle moves on bumpy roads. It provides good protection for the transmission body. The fixed installation mechanism allows for easy and quick installation and removal of the shock-absorbing and protective mechanism, saving time. It also allows for easy maintenance or replacement of the shock-absorbing and protective mechanism after disassembly, ensuring that it maintains a good shock-absorbing effect. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of a protective frame structure for an electric vehicle gearbox provided by an embodiment of the present invention; Figure 2 A partial internal structure diagram provided for an embodiment of this utility model; Figure 3 for Figure 3 A magnified view of position A in the middle; Figure 4 A schematic diagram of the internal structure of the base rod, the movable frame rod, and the shock-absorbing spring provided for the embodiments of this utility model.

[0016] In the diagram: 100-Base plate; 101-Connecting groove; 110-Mounting block; 111-Bolt; 200-Base; 300-Electric vehicle gearbox body; 400-Shock absorption and protection mechanism; 410-Connecting block; 420-Base rod; 430-Moving frame rod; 440-Shock absorption spring; 450-Contact block; 500-Fixed mounting mechanism; 510-Protective shell; 520-Screw rod; 530-Sleeve plate; 540-Fixing block; 541-Auxiliary block; 550-Worm gear; 560-Mounting rod; 570-Worm gear; 580-External support. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0018] Please see Figures 1-4 The present invention provides a technical solution: an electric vehicle gearbox protective frame, including a base plate 100, a base 200 installed on the upper end of the base plate 100, an electric vehicle gearbox body 300 installed on the upper end of the base 200, a fixing installation mechanism 500 installed on the upper end of the base plate 100, and a shock-absorbing protective mechanism 400 detachably installed on one side of the base plate 100 through the fixing installation mechanism 500.

[0019] In some specific implementations, the shock absorption and protection mechanism 400 includes a connecting block 410, which is detachably installed on one side of the base plate 100. The connecting block 410 is provided with an installation groove and a bottom rod 420 is installed in the installation groove. A shock-absorbing spring 440 is installed at the inner end of the bottom rod 420. A movable frame rod 430 is installed at one end of the shock-absorbing spring 440 and is slidably inserted into the inner wall of the bottom rod 420. A contact block 450 is installed at one end of the movable frame rod 430.

[0020] In some specific implementations, the contact block 450 is set in an arc shape, and the bottom end of the base rod 420 contacts the vehicle body. Through the contact block 450 and the movable frame rod 430, in conjunction with the elasticity of the shock-absorbing spring 440, the electric vehicle transmission body 300 can be damped and supported, preventing the service life of the electric vehicle transmission body 300 from being reduced due to vibrations generated when the electric vehicle body moves on bumpy roads. The arc shape of the contact block 450, in conjunction with the shock-absorbing spring 440, facilitates the support and damping of the electric vehicle transmission body 300. At the same time, the shock-absorbing protection mechanism 400 can be easily disassembled through the connecting block 410, allowing for timely maintenance of the shock-absorbing spring 440 and preventing the elasticity of the shock-absorbing protection mechanism 400 from decreasing and affecting the damping effect.

[0021] In some specific implementation schemes, the fixed installation mechanism 500 includes a protective shell 510 and a lead screw 520. The protective shell 510 is installed on the upper end of the base plate 100, and the lead screw 520 is rotatably installed on the upper end of the base plate 100. The other end of the lead screw 520 is rotatably connected to the inner end of the protective shell 510. The lead screw 520 is threadedly connected to a sleeve plate 530. A fixing block 540 is installed on one side of the sleeve plate 530. A connecting groove 101 is provided on one side of the base plate 100 to cooperate with the connecting block 410. The fixing block 540 slides through one end of the base plate 100 and the connecting groove 101. A fixing groove is provided on one end of the connecting block 410 to cooperate with the fixing block 540. The connecting block 410 is initially connected to the base plate 100 through the connecting groove 101. The rotation of the lead screw 520 causes the sleeve plate 530 to drive the fixing block 540 to move, so that the fixing block 540 cooperates with the fixing groove of the connecting block 410 to fix the connecting block 410, thereby completing the fixation of the shock absorption and protection mechanism 400.

[0022] In some specific implementation schemes, two sets of connecting blocks 410 and fixing blocks 540 are provided together. The two sets of fixing blocks 540 are installed on both sides of the sleeve plate 530. The two sets of shock-absorbing and protective mechanisms 400 support and absorb shock from two positions below the electric vehicle transmission body 300, thereby enhancing the shock absorption effect.

[0023] In some specific implementations, an auxiliary block 541 is installed on one side of the fixed block 540, and an auxiliary groove is provided on the inner side of the protective shell 510 in conjunction with the auxiliary block 541. The auxiliary block 541 is located inside the protective shell 510, and the stability of the fixed block 540 and the sleeve plate 530 is enhanced by the auxiliary block 541 when they move.

[0024] In some specific implementations, an installation rod 560 is rotatably mounted inside the protective shell 510. A worm gear 570 is fixedly mounted at one end of the installation rod 560. A worm wheel 550 is fixedly sleeved on the outside of the lead screw 520. The worm wheel 550 and the worm gear 570 are meshed together. The rotation of the installation rod 560 causes the worm gear 570 to drive the worm wheel 550 to rotate, which in turn causes the lead screw 520 to rotate. At the same time, the self-locking property of the worm gear 570 prevents the lead screw 520 from rotating in the opposite direction, thereby enhancing the stability and safety of the installation.

[0025] In some specific implementation schemes, the mounting rod 560 rotates through one end of the protective shell 510, and an external support 580 is installed at one end of the mounting rod 560.

[0026] In some specific implementation schemes, mounting blocks 110 are installed on both sides of the base plate 100. The mounting blocks 110 are provided with threaded grooves and are fixed to the vehicle body by bolts 111, for mounting the device and the electric vehicle body.

[0027] Working principle: During use, the vibration generated when the electric vehicle moves on bumpy roads is damped by the contact block 450 and the moving frame rod 430 in conjunction with the base rod 420 and the shock-absorbing spring 440, preventing damage to the electric vehicle gearbox body 300 and reducing its service life. When the shock-absorbing protection mechanism 400 has been used for a long time and needs to be replaced or maintained to ensure better support and shock absorption, the mounting rod 560 is rotated by the external support 580. The rotation of the mounting rod 560 causes the worm gear 570 to drive the worm wheel 550 to rotate, which in turn causes the lead screw 520 to rotate. The rotation of the lead screw 520 causes the sleeve plate 530 to move the fixing block 540, so that the fixing block 540 no longer engages with the fixing groove of the connecting block 410 to fix the connecting block 410. The connecting block 410 is then removed from the connecting groove 101 and reinstalled after maintenance.

[0028] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An electric vehicle transmission guard, characterized by, The device includes a base plate, a base mounted on the upper end of the base plate, an electric vehicle transmission body mounted on the upper end of the base plate, a fixing and mounting mechanism mounted on the upper end of the base plate, and a shock-absorbing and protective mechanism detachably mounted on one side of the base plate via the fixing and mounting mechanism.

2. The electric vehicle transmission guard of claim 1, wherein, The shock absorption and protection mechanism includes a connecting block, which is detachably installed on one side of the base plate. The connecting block is provided with an installation groove and a base rod is installed in the installation groove. A shock-absorbing spring is installed at the inner end of the base rod. A movable frame rod is installed at one end of the shock-absorbing spring and is slidably inserted into the inner wall of the base rod. A contact block is installed at one end of the movable frame rod.

3. The electric vehicle gearbox protective frame according to claim 2, characterized in that, The contact block is designed to be arc-shaped.

4. The electric vehicle gearbox protective frame according to claim 2, characterized in that, The fixed installation mechanism includes a protective shell and a lead screw. The protective shell is installed on the upper end of the base plate, and the lead screw is rotatably installed on the upper end of the base plate. The other end of the lead screw is rotatably connected to the inner end of the protective shell. The lead screw is threadedly connected to a sleeve plate. A fixing block is installed on one side of the sleeve plate. A connecting groove is provided on one side of the base plate to cooperate with the connecting block. The fixing block slides through one end of the base plate and the connecting groove. A fixing groove is provided on one end of the connecting block to cooperate with the fixing block.

5. The electric vehicle gearbox protective frame according to claim 4, characterized in that, The connecting block and the fixing block are provided in two sets, and the two sets of fixing blocks are installed on both sides of the sleeve plate.

6. The electric vehicle gearbox protective frame according to claim 4, characterized in that, An auxiliary block is installed on one side of the fixed block, and an auxiliary groove is provided on the inner side of the protective shell to cooperate with the auxiliary block.

7. The electric vehicle gearbox protective frame according to claim 4, characterized in that, An installation rod is rotatably mounted inside the protective shell. A worm gear is fixedly mounted at one end of the installation rod. A worm wheel is fixedly sleeved on the outside of the lead screw. The worm wheel and the worm gear are meshed together.

8. The electric vehicle gearbox protective frame according to claim 7, characterized in that, The mounting rod rotates through one end of the protective shell, and an external support is installed at one end of the mounting rod.

9. The electric vehicle gearbox protective frame according to claim 1, characterized in that, Mounting blocks are installed on both sides of the base plate. The mounting blocks are provided with threaded grooves and are fixed to the vehicle body by bolts.

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