Quick reset drive mechanism for new energy electric vehicle

Abstract

The utility model discloses a new energy electric vehicle's quick reset drive mechanism, including the car bottom plate, and the car bottom plate is provided with through -hole, and the car bottom plate is provided with reset support subassembly and gear drive subassembly, and reset support subassembly straddles and is established above the through -hole, and reset support subassembly includes fixed seat and support, and the fixed seat is fixed on the car bottom plate through the first fixed bolt, and the support is rotatably connected on the fixed seat, and the support top fixed connection motor, and the motor gear of motor is engaged with the driven gear in gear drive subassembly. Solveed the new energy electric vehicle debugging time longer and the problem of low efficiency in the prior art.

Description

Technical Field

[0001] This utility model belongs to the field of new energy electric vehicle technology, and relates to a quick-reset drive mechanism for new energy electric vehicles. Background Technology

[0002] In recent years, in order to promote the concept of carbon-free and green environmental protection, the Department of Higher Education of the Ministry of Education has upgraded the traditional carbon-free car competition in the Class A competition, the China Undergraduate Engineering Practice and Innovation Ability Competition, to a new energy electric vehicle competition driven by solar energy / thermal energy difference, providing an important platform for promoting green environmental protection and soliciting cutting-edge designs.

[0003] According to the competition rules for new energy electric vehicles, the cars are required to... The vehicle operates on an open-loop trajectory within a 6-meter field. Steering control is primarily achieved through changes in the contact point between the cam and the front wheel pushrod. Points on the cam curve correspond to different coordinates of the vehicle's movement. During operation, the vehicle is powered by solar / thermal energy conversion stored in the motor. Changes in the cam-pushrod contact point are transmitted via the motor to a gear set, which in turn rotates the cam. Initially, each test requires the cam-pushrod contact point to return to its starting point to ensure accurate subsequent trajectory. However, in actual testing, the cam-pushrod contact point cannot always be at the starting position. Manual gear shifting or allowing the motor to idle is necessary to reset it. Manually shifting gears can cause motor wear and shorten its lifespan; idling wastes time and energy, especially in a competition where testing time is extremely limited (only 3 minutes). Idling the motor to return it to the starting point significantly reduces valuable testing opportunities.

[0004] Existing technologies, such as Chinese Patent Publication No. CN212067735U (publication date: December 4, 2020), "A Gear Drive Mechanism for an 'S-Ring' Carbon-Free Car," and Chinese Patent Publication No. CN215351966U (publication date: December 31, 2021), "A Quick-Reset Transmission Mechanism for a Carbon-Free Car," mainly concern the design of the drive and transmission mechanism of the carbon-free car before the upgrade of the competition. These patents elaborate on aspects such as ensuring accuracy, stability, and detachability, but do not address the quick reset device connected to the motor structure after the competition upgrade. Therefore, to improve the debugging efficiency of new energy electric vehicles and save energy consumption, a quick reset drive device for new energy electric vehicles is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a quick-adjustable drive mechanism and adjustment method for new energy electric vehicles, which solves the problems of long adjustment time and low efficiency in the existing technology for new energy electric vehicles.

[0006] The technical solution adopted by this utility model includes a vehicle floor plate with a through hole. A resettable bracket assembly and a gear transmission assembly are provided on the vehicle floor plate. The resettable bracket assembly spans above the through hole and includes a fixed base and a support. The fixed base is fixed to the vehicle floor plate by a first fixing bolt, and the support is rotatably connected to the fixed base. A motor is fixed to the top of the support, and the motor gear of the motor meshes with the driven gear in the gear transmission assembly.

[0007] The other end of the support is equipped with a slider assembly, which can be snapped onto the vehicle floor.

[0008] The slider assembly includes a first slider, which is rotatably mounted at the bottom of the support via a positioning shaft. A locking block is fixed on the upper surface of the first slider, and the first slider is also provided with a third fixing bolt and a limiting bolt.

[0009] The driven gear is mounted on the first drive shaft, which also has a primary drive gear.

[0010] The first-stage driving wheel meshes with a first-stage driven wheel, which is mounted on the second drive shaft. The second drive shaft is also equipped with a second-stage driving wheel.

[0011] The second-stage driving wheel meshes with a second-stage driven wheel, which is mounted on the third drive shaft, which is also equipped with a cam.

[0012] After the first slider rotates, the locking block engages with the upper surface of the vehicle floor.

[0013] The support and the fixed seat are rotatably connected by a connecting shaft.

[0014] The beneficial effects of this utility model are: 1. In the resettable motor drive bracket structure of this utility model, the left side of the bracket has an axial rotation function, and the right side locking slider has a horizontal rotation function, which can realize the rotation of the motor drive bracket structure, thereby realizing the rapid engagement or disengagement of the motor gear and the driven gear. This saves a lot of time for the gear set to drive the cam back to the starting point for quick reset, improves debugging efficiency, and avoids energy waste and motor life loss.

[0015] 2. In the resettable motor drive bracket structure of this utility model, the contact between the bracket and the motor is designed as a stepped irregular structure, which is a non-planar structure, increasing the contact area between the bracket and the motor and improving the stability of the motor operation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the quick-reset drive mechanism of this utility model; Figure 2 This is a schematic diagram showing the separation of the drive device and the driven gear of this utility model; Figure 3 This is a schematic diagram of the overall structure of the drive device of this utility model; Figure 4 This is a schematic diagram of the drive device of this utility model from another perspective; Figure 5 This is a schematic diagram of the internal components of the slider assembly of this utility model.

[0017] In the diagram, 1 is the fixed base; 2 is the first fixing bolt; 3 is the connecting shaft; 4 is the support; 5 is the motor; 6 is the fixing sleeve; and 7 is the second fixing bolt. 8. Slider assembly; 801. First slider; 802. Third fixing bolt; 803. Locking block; 804. Positioning shaft; 805. Limit bolt; 9. Motor gear; 10. Driven gear; 11. First-stage driving gear; 12. First drive shaft; 13. First-stage driven gear; 14. Second drive shaft; 15. Second-stage driving gear; 16. Second-stage driven gear; 17. Third drive shaft; 18. Cam. Detailed Implementation

[0018] The following detailed description is provided in conjunction with specific implementation methods.

[0019] Example 1 The present invention relates to a quick-reset drive mechanism for new energy electric vehicles, see attached figure. Figure 1-2 As shown, the vehicle includes a floor panel, on which a resettable bracket assembly and a gear transmission assembly are installed. A square through hole is provided on the floor panel, and the resettable bracket assembly is positioned above the through hole.

[0020] Reference Appendix Figure 3-5 As shown, the resettable bracket assembly includes a fixed base 1 and a support 4. The fixed base 1 is fixed to the vehicle floor plate by a first fixing bolt 2. The support 4 is rotatably connected to the fixed base 1. The top of the support 4 is fixed to the motor 5 by a fixing sleeve 6. The two ends of the fixing sleeve 6 are fixed to the top of the support 4 by a second fixing bolt 7. The gear of the motor 5 meshes with the driven gear 10 in the gear transmission assembly.

[0021] Specifically, the fixed base 1 and the support 4 are rotatably connected via the connecting shaft 3. A slider assembly 8 is installed at the bottom of the other end of the support 4. The slider assembly 8 allows the support 4 to be engaged with the vehicle floor, enabling the support 4 to support the motor 5 and engage with the driven gear 10 of the gear transmission assembly. When the slider assembly 8 is not engaged with the vehicle floor, the rotatable connection between the support 4 and the fixed base 1 allows the support 4 to rotate along the connecting shaft 3, causing the movable end of the support 4 to fall into the through hole in the vehicle floor, and disengaging the motor gear 9 of the motor 5 from the driven gear 10.

[0022] For details on the structure of the gear transmission assembly, please refer to the attached document. Figure 1-3 As shown, motor gear 9 meshes with driven gear 10. Driven gear 10 is mounted on a first drive shaft 12, which is mounted on a shaft bracket. A first-stage driving gear 11 is also mounted on the first drive shaft 12. The first-stage driving gear 11 meshes with a first-stage driven gear 13. The first-stage driven gear 13 is mounted on a second drive shaft 14, which is mounted on a shaft bracket. A second-stage driving gear 15 is also mounted on the second drive shaft 14. The second-stage driving gear 15 meshes with a second-stage driven gear 16. The second-stage driven gear 16 is mounted on a third drive shaft 17, which is mounted on a shaft bracket. A cam 18 is mounted on the other end of the third drive shaft 17. Through this gear transmission assembly, the rotation of motor gear 9 can be converted into the rotation of cam 18.

[0023] Motor gear 9 meshes with driven gear 10 for speed reduction transmission. First-stage driving gear 11 and driven gear 10 are coaxially mounted on drive shaft 12, located at the right end of first drive shaft 12. First-stage driving gear 11 meshes with first-stage driven gear 13 for speed reduction transmission. Second-stage driving gear 15 and first-stage driven gear 13 are coaxially mounted on second drive shaft 14, located at both ends of second drive shaft 14. First drive shaft 12 and second drive shaft 14 are at the same height. Second-stage driven gear 16 and cam 18 are coaxially mounted on third drive shaft 17, located at both ends of third drive shaft 17. Cam 18 is mounted on the outer end of bearing support to avoid interference with the trolley space. Third drive shaft 17 is located slightly higher in front of second drive shaft 14.

[0024] For details on the structure of slider component 8, please refer to the attached document. Figure 4-5 As shown, a first slider 801 is rotatably connected to the lower part of the movable end of the support 4 via a positioning shaft 804. A locking block 803 is provided between the bottom of the support 4 and the first slider 801. The locking block 803 is fixed on the first slider 801 and is elongated. The first slider 801 is also fixed to the lower end of the support 4 via a third fixing bolt 802 and a limiting bolt 805. When the support 4 needs to be reset, the limiting bolt 805 and the third fixing bolt 802 are loosened, and the bottom end of the support 4 is raised to the same level as the upper surface of the vehicle floor. Then, the locking block 803 is moved, causing the first slider 801 to rotate around the positioning shaft 804 with the locking block 803, so that the upper surface of the first slider 801 is parallel to the upper surface of the vehicle floor, and the lower surface of the locking block 803 is locked onto the upper surface of the vehicle floor. This allows the motor gear 9 of the motor 5 located on the support 4 to mesh with the driven gear 10.

[0025] The working principle of the quick-reset drive mechanism for this new energy electric vehicle: During the operation of the trolley, the locking block 803 is horizontally locked between the upper surface of the trolley's bottom plate and the motor support 4, and the third fixing bolt 802 is tightened. The limit bolt 805 is inserted, and the motor 5 drives the motor gear 9 to rotate. The motor gear 9 then drives the driven gear 10 to rotate, causing the first drive shaft 12 to rotate synchronously, driving the first-stage drive wheel 11 to rotate, which in turn drives the first-stage driven wheel 13 meshing with it to rotate, driving the second drive shaft 14 to rotate. The rotation of the second drive shaft 14 drives the second-stage drive wheel 15 to rotate, and the rotation of the second-stage driven wheel 16 meshing with it to rotate, driving the third drive shaft 17 to rotate, which in turn drives the coaxial cam 18 to rotate. The cam 18 contacts the trolley's steering push rod, thus controlling the trolley's trajectory. This control of the trolley's trajectory through the contact between the cam 18 and the steering push rod is existing technology and a common technique used in racing trolleys; therefore, it will not be elaborated further.

[0026] After the trolley debugging is completed, in order to quickly reset the starting point of cam 18 to the front, it is necessary to loosen the limit bolt 805 and the third fixing bolt 802, move the locking block 803 to disengage it from the upper surface of the vehicle floor, rotate the support 4 downward to separate the resettable bracket assembly from the gear transmission mechanism, quickly turn the gear set clockwise until the contact point between cam 18 and the steering push rod returns to the initial position (i.e., the arrow of cam 18 points to the front), then rotate the resettable bracket assembly upward to make the motor gear 9 mesh with the driven wheel, move the locking block 803 in the reverse direction to make it lock back into the upper surface of the vehicle floor, and fix the limit bolt 805 and the third fixing bolt 802. This will achieve a quick reset of the trolley during one debugging process, saving time for the next debugging and operation of the trolley.

[0027] Example 2 In this embodiment, as Figure 1-2 As shown, the quick-reset drive mechanism of the new energy electric vehicle includes a vehicle floor plate with a through hole. A resettable bracket assembly and a gear transmission assembly are provided on the vehicle floor plate. The resettable bracket assembly spans above the through hole and includes a fixed base 1 and a support 4. The fixed base 1 is fixed to the vehicle floor plate by a first fixing bolt 2 and is close to the edge of the through hole. The support 4 is rotatably connected to the fixed base 1. A motor 5 is fixed to the top of the support 4. The motor gear 9 of the motor 5 meshes with the driven gear 10 in the gear transmission assembly.

[0028] Example 3 The quick-reset drive mechanism for new energy electric vehicles includes a vehicle floor plate with a through hole. A resettable bracket assembly and a gear transmission assembly are provided on the vehicle floor plate. The resettable bracket assembly spans above the through hole and includes a fixed base 1 and a support 4. The fixed base 1 is fixed to the vehicle floor plate by a first fixing bolt 2 and is close to the edge of the through hole. The support 4 is rotatably connected to the fixed base 1. A motor 5 is fixedly connected to the top of the support 4. The motor gear 9 of the motor 5 meshes with the driven gear 10 in the gear transmission assembly.

[0029] A slider assembly 8 is rotatably mounted on the bottom of the other end of the support 4. The slider assembly 8 can be snapped onto the upper surface of the vehicle floor. Specifically, the slider assembly 8 includes a first slider 801, which is rotatably connected to the bottom of the support 4 via a positioning shaft 804. A locking block 803 is fixedly mounted on the upper surface of the first slider 801. The first slider 801 can also be fixed to the bottom of the support 4 by a third fixing bolt 802 and a limiting bolt 805. When the third fixing bolt 802 and the limiting bolt 805 are unscrewed, the first slider 801 can resume its rotation around the positioning shaft 804.

[0030] Example 4 The quick-reset drive mechanism for new energy electric vehicles includes a vehicle floor plate with a through hole. A resettable bracket assembly and a gear transmission assembly are provided on the vehicle floor plate. The resettable bracket assembly spans above the through hole and includes a fixed base 1 and a support 4. The fixed base 1 is fixed to the vehicle floor plate by a first fixing bolt 2 and is close to the edge of the through hole. The support 4 is rotatably connected to the fixed base 1. A motor 5 is fixedly connected to the top of the support 4. The motor gear 9 of the motor 5 meshes with the driven gear 10 in the gear transmission assembly.

[0031] A slider assembly 8 is rotatably mounted on the bottom of the other end of the support 4. The slider assembly 8 can be snapped onto the upper surface of the vehicle floor. Specifically, the slider assembly 8 includes a first slider 801, which is rotatably connected to the bottom of the support 4 via a positioning shaft 804. A locking block 803 is fixedly mounted on the upper surface of the first slider 801. The first slider 801 can also be fixed to the bottom of the support 4 by a third fixing bolt 802 and a limiting bolt 805. When the third fixing bolt 802 and the limiting bolt 805 are unscrewed, the first slider 801 can resume its rotation around the positioning shaft 804.

[0032] Driven gear 10 is mounted on first drive shaft 12, and a first-stage drive gear 11 is also mounted on first drive shaft 12; first-stage drive gear 11 meshes forward with a first-stage driven gear 13, first-stage driven gear 13 is mounted on second drive shaft 14, second-stage drive gear 15 is also mounted on second drive shaft 14; second-stage drive gear 15 meshes forward with a second-stage driven gear 16, second-stage driven gear 16 is mounted on third drive shaft 17, and cam 18 is also provided on third drive shaft 17.

[0033] Example 5 The quick-reset drive mechanism for new energy electric vehicles includes a vehicle floor plate with a through hole. A resettable bracket assembly and a gear transmission assembly are provided on the vehicle floor plate. The resettable bracket assembly spans above the through hole and includes a fixed base 1 and a support 4. The fixed base 1 is fixed to the vehicle floor plate by a first fixing bolt 2 and is close to the edge of the through hole. The support 4 is rotatably connected to the fixed base 1. A motor 5 is fixedly connected to the top of the support 4. The motor gear 9 of the motor 5 meshes with the driven gear 10 in the gear transmission assembly.

[0034] When the first slider 801 rotates, the locking block 803 will lock onto the upper surface of the vehicle floor. This structure enables the support 4 to be fixed by locking. When the support 4 is not locked, it can rotate around the fixed seat 1, so that the motor gear 9 and the driven gear 10 are separated.

[0035] Example 6 The quick-reset drive mechanism for new energy electric vehicles includes a vehicle floor plate with a through hole. A resettable bracket assembly and a gear transmission assembly are provided on the vehicle floor plate. The resettable bracket assembly spans above the through hole and includes a fixed base 1 and a support 4. The fixed base 1 is fixed to the vehicle floor plate by a first fixing bolt 2 and is close to the edge of the through hole. The support 4 is rotatably connected to the fixed base 1. A motor 5 is fixedly connected to the top of the support 4. The motor gear 9 of the motor 5 meshes with the driven gear 10 in the gear transmission assembly.

[0036] A through hole is provided at the connection between the fixed base 1 and the support 4, and a connecting shaft 3 is installed in the through hole. The support 4 is rotatably connected to the fixed base 1 through the connecting shaft 3.

Claims

1. A quick reset drive mechanism for a new energy electric vehicle, characterized in that, The vehicle includes a floor panel with a through hole. A resettable bracket assembly and a gear transmission assembly are provided on the upper surface of the floor panel. The resettable bracket assembly is located above the through hole. The resettable bracket assembly includes a fixed seat (1) and a support (4). The fixed seat (1) is fixed to the floor panel by a first fixing bolt (2). The support (4) is rotatably connected to the fixed seat (1). A motor (5) is fixed to the top of the support (4). The motor gear (9) of the motor (5) meshes with the driven gear (10) in the gear transmission assembly.

2. The quick-reset drive mechanism for new energy electric vehicles according to claim 1, characterized in that, The other end of the support (4) is provided with a slider assembly (8), which can be snapped onto the vehicle floor.

3. The quick-reset drive mechanism for new energy electric vehicles according to claim 2, characterized in that, The slider assembly (8) includes a first slider (801), which is rotatably mounted at the bottom of the support (4) via a positioning shaft (804). A locking block (803) is fixed on the upper surface of the first slider (801). The first slider (801) is also provided with a third fixing bolt (802) and a limiting bolt (805).

4. The quick-reset drive mechanism for new energy electric vehicles according to claim 1, characterized in that, The driven gear (10) is mounted on the first drive shaft (12), and a first-stage drive wheel (11) is also mounted on the first drive shaft (12).

5. The quick-reset drive mechanism for a new energy electric vehicle according to claim 4, characterized in that, The first-stage driving wheel (11) meshes with a first-stage driven wheel (13), the first-stage driven wheel (13) is mounted on the second drive shaft (14), and the second drive shaft (14) is also mounted with a second-stage driving wheel (15).

6. The quick-reset drive mechanism for a new energy electric vehicle according to claim 5, characterized in that, The secondary drive wheel (15) meshes with the secondary driven wheel (16), the secondary driven wheel (16) is mounted on the third drive shaft (17), and the third drive shaft (17) is also provided with a cam (18).

7. The quick-reset drive mechanism for a new energy electric vehicle according to claim 3, characterized in that, After the first slider (801) rotates, the locking block (803) engages with the upper surface of the vehicle floor.

8. The quick-reset drive mechanism for a new energy electric vehicle according to claim 1, characterized in that, The support (4) and the fixed seat (1) are rotatably connected by a connecting shaft (3).

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