A single-stage reduction gear for automobiles

Abstract

This utility model discloses a single-stage reduction mechanism for automobiles, including a motor, a driving component, and a driven component. The driving component includes a worm gear connected to the motor output shaft, and the driving component is connected to the driven component. The driving component includes a worm gear, and the driven component includes a gear and a gear base, with the worm gear and gear meshing. The gear base has a helical groove and an arc-shaped magnetic strip, with the arc-shaped magnetic strip positioned between the helical groove and the gear. This utility model can convert the circular motion of the gear into linear motion of the output part through the helical groove, and can also output the required speed and torque through the shaft hole of the gear's central shaft. This utility model features a simple and compact structure, low production cost, and wide applicability.

Description

Technical Field

[0001] This utility model belongs to the field of automotive parts technology. Specifically, this utility model relates to a single-stage reduction mechanism for automobiles. Background Technology

[0002] As automotive intelligence becomes increasingly prevalent, people's demands for cars have shifted from traditional driving modes to intelligent, comfortable, and safe features. Components such as electronic steering column locks and air conditioning evaporators are indispensable system components. However, currently developed products are large in size, affecting installation space, and their heavy weight causes vibrations, resulting in abnormal noises and significantly impacting passenger comfort. Single-stage reduction mechanisms can solve these problems to some extent. With fewer internal reduction stages, manufacturability, economy, and product size are greatly improved.

[0003] According to the applicant's search, a pneumatic geared motor disclosed on October 2, 2020, with application number CN202010708093.9, includes: a cover, a lower housing, a transmission gear assembly, and a reduction gear component. The reduction gear component includes: a reduction gear, a slot, an annular vent, a rotating shaft, an annular shaft, an annular sleeve, a protrusion, and a pneumatic compression assembly. The pneumatic compression assembly includes: an annular air chamber, an annular protrusion, an annular air outlet, and an annular moving plate. This invention controls the motor speed by controlling the air content in the hollow area between the inner peripheral wall of the reduction gear slot and the outer peripheral wall of the reduction gear, i.e., through pneumatic control, it realizes the pressure and friction of gas on the peripheral wall of the reduction gear, thereby achieving speed control of the motor. This invention has a complex structure, high cost, and cannot convert power into linear motion. Utility Model Content

[0004] This utility model was developed to solve the aforementioned problems, and its purpose is to provide a simple, single-stage reduction mechanism for automobiles that can convert circular motion into linear motion of output parts. To achieve this objective, the technical solution adopted by this utility model is as follows:

[0005] A single-stage reduction gear for automobiles includes a motor, a driving component, and a driven component. The driving component includes a worm gear connected to the output shaft of the motor, and the driving component and the driven component are connected.

[0006] The driving component includes a worm gear, and the driven component includes a gear and a gear base, which are fixedly connected, and the worm gear and the gear mesh.

[0007] The gear base is provided with a spiral groove that extends to the bottom of the gear base and the other end of the spiral groove extends to the top of the gear base.

[0008] The gear base is provided with an arc-shaped magnetic strip, which is located between the helical groove and the gear.

[0009] The gear has a hub.

[0010] The wheel core has an axle hole.

[0011] The gear has a weight-reducing hole inside, which is located on the outside of the gear core.

[0012] The weight-reducing hole is uniformly provided with spokes, and the spokes are long strips.

[0013] The shaft hole is a square hole.

[0014] The gear is a cylindrical helical gear.

[0015] The technical advantages of this utility model are as follows: This utility model includes a motor, an active component, and a driven component. The active component includes a worm gear, which is connected to the output shaft of the motor. The active component and the driven component are connected. The driven component includes a gear and a gear base, which are fixedly connected. The gear base is provided with a helical groove and an arc-shaped magnetic strip. The arc-shaped magnetic strip is used to sense Hall effect devices in automotive electronic steering locks, air conditioning evaporators, or air conditioning vents, acting as a switch. The helical groove can convert rotational motion into linear motion, making this utility model more applicable. This utility model transmits the high-speed rotation of the motor to the gear through the worm gear, achieving deceleration. Simultaneously, the helical groove converts the rotational motion of the gear into linear motion of the output component. The gear can also obtain the required speed and torque after one stage of deceleration. This utility model has a compact structure and high versatility. With the reduction of the number of internal reduction stages, its manufacturability and economy are greatly improved. Attached Figure Description

[0016] This manual includes the following figures, which illustrate the following:

[0017] Figure 1 This is a schematic diagram of the overall structure of a single-stage reduction mechanism for automobiles according to this utility model;

[0018] Figure 2 This is a schematic diagram of the active component of a single-stage reduction mechanism for automobiles according to this utility model;

[0019] Figure 3 This is a schematic diagram of a driven component of a single-stage reduction mechanism for automobiles according to this utility model;

[0020] The diagram is marked as follows:

[0021] 1. Motor; 2. Driving component; 21. Worm gear; 3. Driven component; 31. Gear; 311. Gear core; 312. Shaft hole; 313. Weight reduction hole; 314. Gear spoke; 32. Gear base; 321. Helical groove; 322. Arc-shaped magnet bar; 4. Output shaft. Detailed Implementation

[0022] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, in order to help those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of this utility model, and to facilitate its implementation.

[0023] like Figure 1 As shown, a single-stage reduction mechanism for automobiles includes a motor 1, a driving component 2, and a driven component 3. The driving component 2 includes a worm gear 21, which is connected to the output shaft 4 of the motor 1. The driving component 2 and the driven component 3 are also connected. In this invention, the driving component 2 is connected to the output shaft 4 of the motor 1, and the driving component 2 is connected to the driven component 3. This invention is a transmission device with only one reduction stage. Compared to multi-stage reduction mechanisms, it has a simple and compact structure, with fewer intermediate transmission components, resulting in smaller size, lighter weight, less space occupation, flexible installation, and easier maintenance, reducing the probability of failure. It also requires fewer parts to manufacture, less processing and assembly, thus reducing costs. Furthermore, it has a short power transmission path, high transmission efficiency, low energy loss, and fast power response speed, quickly converting input speed and torque into output. It also exhibits high stability during operation, low vibration and noise levels, and provides a smooth operating environment.

[0024] like Figure 1 and Figure 3 As shown, the driving component 2 includes a worm gear 21, and the driven component 3 includes a gear 31 and a gear base 32. The gear 31 and gear base 32 are fixedly connected, and the worm gear 21 and gear 31 mesh. The worm gear 21 acts as the driving wheel, and the gear 31 acts as the driven wheel in this single-stage reduction mechanism. Due to its compact structure, it achieves a large transmission ratio within a limited space, making it suitable for equipment with limited installation space. It also reduces power transmission links, simplifies the overall mechanical layout, and facilitates equipment miniaturization and weight reduction. The meshing process between the helical teeth of the worm gear 21 and the gear teeth 31 is smooth and continuous, with low impact vibration and low operating noise, creating a quiet working environment suitable for reducing noise inside automobiles. The worm gear 21 transmission can achieve a high transmission ratio over a wide range, converting high input speeds into low speeds while increasing torque, meeting the low-speed, high-torque operating requirements of the equipment. Furthermore, by reasonably changing the parameters of the worm gear 21, the mechanism can also have a self-locking function, ensuring the safety of equipment and personnel in situations requiring braking or preventing reverse rotation.

[0025] like Figure 3As shown, the gear base 32 is provided with a helical groove 321, which extends to the bottom of the gear base 32 and extends to the top of the gear base 32. The helical groove 321 on the gear base 32 can cooperate with other components to convert rotational motion into the required linear motion.

[0026] like Figure 3 As shown, an arc-shaped magnetic strip 322 is provided on the gear base 32, and the arc-shaped magnetic strip 322 is located between the spiral groove 321 and the gear 31. The arc-shaped magnetic strip 322 on the gear base 32 is used to sense the Hall effect device of the electronic steering lock, air conditioning evaporator or air conditioning vent adjustment of the car, and can act as a switch, thus increasing the applicability of this utility model.

[0027] like Figure 1 and Figure 3 As shown, gear 31 has a core 311. The core 311 in the middle of gear 31 can serve as an internal support structure to share the load borne by the teeth 31 when gear 31 transmits power, and effectively prevent gear 31 from deforming or being damaged under high torque conditions, thus avoiding failure such as breakage.

[0028] like Figure 1 and Figure 3 As shown, the wheel core 311 has a shaft hole 312 inside. The shaft hole 312 inside the wheel core 311 can facilitate the output of the rotational speed and torque of the gear 31.

[0029] like Figure 1 and Figure 3 As shown, the gear 31 has a weight-reducing hole 313 located on the outer side of the gear core 311. By removing material from non-critical load-bearing areas, the weight of the gear 31 is reduced without significantly affecting its overall strength and transmission performance. The weight-reducing hole 313 not only reduces energy consumption and the load on drive components, but also improves the response speed and operational stability of the mechanical system, avoiding excessive inertia caused by the excessive weight of the gear 31. Furthermore, the weight-reducing hole 313 can also reduce the manufacturing cost of the gear 31 to some extent, reducing the amount of material used.

[0030] like Figure 1 and Figure 3 As shown, spokes 314 are evenly arranged inside the weight-reducing hole 313, and the spokes 314 are elongated plates. The spokes 314 can replace the solid structure, which can significantly reduce the amount of material used while ensuring that the overall strength and rigidity of the gear 31 meet the transmission requirements. This effectively reduces the weight of the gear 31 itself, which can reduce the centrifugal force generated during rotation, reduce the load on the gear 31, reduce vibration and noise, improve transmission stability, realize the lightweight design of the equipment, and reduce energy consumption.

[0031] like Figure 1 and Figure 3 As shown, the shaft hole 312 is a square hole. The square structure between the shaft and the shaft hole 312 enables tight torque transmission. Compared to designing the shaft hole 312 as a circular keyed connection, the square shaft hole 312 eliminates the need for additional keyway machining. Power can be transmitted directly through the meshing of the square contact surfaces of the shaft and the shaft hole 312, avoiding potential issues such as keyway wear and key breakage associated with keyed connections, thus improving the reliability and stability of the transmission. Furthermore, the machining process for the square shaft hole 312 is relatively simple, eliminating the need for keyway and key machining, reducing the number of machining steps and assembly complexity, lowering manufacturing costs, and facilitating quick disassembly and assembly for later maintenance, saving repair time.

[0032] like Figure 1 and Figure 3 As shown, gear 31 is a cylindrical helical gear. Gear 31 adopts a cylindrical helical gear that is highly compatible with worm 21. The tooth surface contact characteristics and transmission principle of the two are more compatible. The tooth line of the cylindrical helical gear is helical, which can form a larger contact area when meshing with the helical tooth surface of worm 21. Moreover, the contact process is gradual. This surface contact form can significantly improve the load-bearing capacity, disperse the stress during meshing, reduce tooth surface wear, and extend the service life of the transmission pair, especially in scenarios that transmit large torques. Because the tooth surface gradually enters and exits the contact during meshing, the sudden impact of spur gear meshing is avoided, thereby reducing transmission noise and making the operation smoother.

[0033] This utility model relates to a single-stage reduction mechanism for automobiles, comprising a motor 1, a driving component 2, and a driven component 3. The driving component 2 includes a worm gear 21, which is connected to the output shaft 4 of the motor 1. The driving component 2 and the driven component 3 are connected. The driven component 3 includes a gear 31 and a gear base 32, which are fixedly connected. The gear base 32 has a helical groove 321 and an arc-shaped magnetic strip 322. The arc-shaped magnetic strip 322 is used to sense Hall effect sensors in the electronic steering lock, air conditioning evaporator, or air conditioning vent adjustment, acting as a switch. The helical groove 322 converts rotational motion into linear motion, broadening the applicability of this utility model. The worm gear 21 and gear 31 work together to withstand greater torque and reduce transmission noise. This utility model is a transmission device with only one reduction stage. Compared with multi-stage reduction mechanisms, this utility model has the advantages of simple and compact structure, low production cost, and wide applicability.

[0034] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention; or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A single-stage reduction gear for automobiles, comprising a motor (1), characterized in that, It includes an active component (2) and a driven component (3). The active component (2) includes a worm (21) and is connected to the output shaft (4) of the motor (1). The active component (2) and the driven component (3) are connected.

2. The single-stage reduction mechanism for automobiles according to claim 1, characterized in that: The driven component (3) includes a gear (31) and a gear base (32), which are fixedly connected, and the worm (21) meshes with the gear (31).

3. The single-stage reduction mechanism for automobiles according to claim 2, characterized in that: The gear base (32) is provided with a spiral groove (321), one end of which extends to the bottom of the gear base (32) and the other end of which extends to the top of the gear base (32).

4. The single-stage reduction mechanism for automobiles according to claim 3, characterized in that: The gear base (32) is provided with an arc-shaped magnetic steel strip (322), which is located between the spiral groove (321) and the gear (31).

5. A single-stage reduction gear for automobiles according to claim 2, characterized in that: The gear (31) is provided with a wheel core (311).

6. A single-stage reduction gear for automobiles according to claim 5, characterized in that: The wheel core (311) has an axle hole (312).

7. A single-stage reduction gear for automobiles according to claim 6, characterized in that: The gear (31) is provided with a weight reduction hole (313), which is located on the outside of the wheel core (311).

8. A single-stage reduction gear for automobiles according to claim 7, characterized in that: The weight-reducing hole (313) is uniformly provided with spokes (314), and the spokes (314) are long strips.

9. A single-stage reduction gear for automobiles according to any one of claims 6 to 8, characterized in that: The shaft hole (312) is a square hole.

10. A single-stage reduction gear for automobiles according to claim 4, characterized in that: The gear (31) is a cylindrical helical gear.

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