A new type of automobile electrical one-way wheel

Abstract

The utility model discloses a novel automobile electrical one-way wheel relates to one-way wheel technical field, and it is including: mandrel, and the middle outside fixedly arranged with annular ring, generator pulley is rotatablely sleeved in the mandrel outside through bearing, a plurality of installation groove are opened in the surface of annular ring along the circumferential array, elastic part is installed in the inboard wall of each installation groove, and the roller is arranged in each installation groove and is connected to one end of corresponding elastic part, and the roller can move in the installation groove along its length direction, one-way cover is sleeved in the outside of annular ring, and with the inner wall fixed connection of generator pulley, and the clearance is left between the inner wall of one-way cover and the outer circumferential surface of annular ring, the utility model discloses the installation groove on annular ring and installs the roller, and the bearing retainer between one-way cover and annular ring is dispensed with, and through one-way cover and roller cooperation, reduce overall weight, reduce production cost.

Description

Technical Field

[0001] This utility model relates to the field of one-way wheel technology, specifically a novel automotive electrical one-way wheel. Background Technology

[0002] In the power transmission system of mechanical equipment, the one-way transmission mechanism is a key component for realizing unidirectional power transmission and preventing interference from reverse motion. It is widely used in automobiles, construction machinery, home appliances and other fields. Taking an automotive alternator as an example, it receives power transmitted from the engine through a pulley and drives the internal rotor to rotate to achieve the function of generating electricity.

[0003] However, during engine operation, factors such as valve opening and closing and piston movement often cause periodic speed fluctuations in the pulley, and even a brief tendency to rotate in the opposite direction. This reverse motion not only causes impact wear on the internal components of the generator, reducing the equipment's service life, but may also lead to problems such as belt slippage and abnormal noise, affecting power transmission efficiency and system stability.

[0004] Traditional unidirectional drive solutions sometimes employ a bearing cage and roller design, which achieves unidirectional drive functionality but suffers from complex overall structure and numerous parts, leading to increased assembly difficulty and higher manufacturing costs. Furthermore, the increased number of parts also increases the overall weight of the mechanism, hindering lightweight design. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a novel automotive electrical one-way wheel.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows:

[0007] A novel automotive electric one-way wheel includes:

[0008] The mandrel has a ring fixedly installed on its outer side in the middle.

[0009] The generator pulley is rotatably mounted on the outside of the spindle via bearings;

[0010] Multiple mounting slots are arranged in a circumferential array on the surface of the ring;

[0011] An elastic element is installed on the inner sidewall of each of the mounting slots;

[0012] A roller is disposed in each of the mounting slots and connected to one end of the corresponding elastic element; the roller is capable of moving along its length within the mounting slot.

[0013] A one-way sleeve is fitted onto the outer side of the ring and is fixedly connected to the inner wall of the generator pulley. A gap is left between the inner wall of the one-way sleeve and the outer circumferential surface of the ring.

[0014] The bottom wall of the mounting groove is horizontal and tangent to the inscribed circle drawn from its midpoint; as the bottom wall of the mounting groove extends from its midpoint to both ends, the distance from any point on the bottom wall to the center of the annulus gradually increases.

[0015] When the generator pulley rotates in the forward direction, the elastic element drives the roller to move along the mounting groove toward its end, so that the roller is wedged between the end of the mounting groove and the inner wall of the one-way sleeve; when the generator pulley rotates in the reverse direction, the roller overcomes the force of the elastic element and moves toward the midpoint of the mounting groove, releasing the wedged state with the inner wall of the one-way sleeve.

[0016] Preferably, as the bottom wall of the mounting groove extends from its midpoint to both ends, the wedge angle formed by the gradual increase in distance from any point on the bottom wall to the center of the annulus ranges from 5 degrees to 60 degrees.

[0017] Preferably, the two side walls of the mounting groove are provided with guide structures to guide the roller to move along the length direction of the mounting groove.

[0018] Preferably, the one-way sleeve is fixedly connected to the inner wall of the generator pulley by means of interference fit, welding or bolt connection.

[0019] Preferably, the number of mounting slots is 5 to 12, and they are evenly distributed along the circumference of the annulus.

[0020] Preferably, the elastic element is a helical spring or a wave-shaped sheet.

[0021] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0022] Optimize structure and cost: Install rollers by creating mounting grooves on the ring, eliminating the need for the bearing cage between the one-way sleeve and the ring. By using the one-way sleeve and rollers in conjunction, the overall weight is reduced, thus lowering production costs. Attached Figure Description

[0023] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:

[0024] Figure 1 This is a three-dimensional structural schematic diagram of a novel automotive electric one-way wheel according to the present invention;

[0025] Figure 2This is an exploded structural diagram of a novel automotive electric one-way wheel according to the present invention;

[0026] Figure 3 This is a second-view exploded view structural diagram of a novel automotive electric one-way wheel according to this utility model;

[0027] Figure 4 This is a cross-sectional view of a novel automotive electrical one-way wheel according to this utility model.

[0028] The diagram shows the following labels: 1. Generator pulley; 2. Spindle; 21. Ring; 22. Mounting groove; 23. Elastic element; 24. Roller; 3. One-way sleeve; 4. Bearing; 5. Oil seal ring. Detailed Implementation

[0029] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0030] Example

[0031] like Figure 1-4 As shown, a novel automotive electric one-way wheel includes:

[0032] Generator pulley 1: Rotatably mounted on the outside of spindle 2 via bearing 4, it is an important component for power transmission.

[0033] Spindle 2: As the core support component of the entire one-way wheel, a ring 21 is fixedly installed on the outer side of its middle part.

[0034] Ring 21: Fixed on the outer side of the middle part of the mandrel 2, providing a foundation for opening the mounting groove 22.

[0035] Mounting slots 22: These are arranged in a circumferential array on the surface of the annulus 21, numbering 5 to 12, and evenly distributed along the circumference of the annulus 21. Their bottom walls are horizontal and tangent to the inscribed circle drawn from its midpoint (e.g., ...). Figure 4 As shown in the diagram, as the bottom wall extends from its midpoint to both ends, the distance from any point on the bottom wall to the center of the ring 21 gradually increases, forming a wedge angle ranging from 5 degrees to 60 degrees. Simultaneously, guide structures are provided on both sides of the mounting groove 22 to guide the roller 24 to move along the length of the mounting groove 22.

[0036] Elastic element 23: Installed on the inner wall of each mounting slot 22, it can provide elastic force to the roller 24, and its type can be a helical spring or a wave spring.

[0037] Roller 24: Set in each mounting groove 22 and connected to one end of the corresponding elastic element 23, it can move along its length in the mounting groove 22 and is a component for realizing unidirectional transmission.

[0038] One-way sleeve 3: Sleeves on the outer side of ring 21 and fixedly connected to the inner wall of generator pulley 1, with a gap between its inner wall and the outer circumferential surface of ring 21. The fixed connection between one-way sleeve 3 and generator pulley 1 can be by interference fit, welding or bolt connection. Through the cooperation between one-way sleeve 3 and roller 24, mounting groove 22 is opened on ring 21 for mounting roller 24, eliminating the bearing cage between one-way sleeve 3 and ring 21, reducing overall weight and production cost.

[0039] Bearing 4: Used to enable relative rotation between generator pulley 1 and spindle 2.

[0040] Oil seal ring 5: Located on both sides of bearing 4, it serves to seal and prevent lubricating oil leakage and impurities from entering.

[0041] When the generator pulley 1 is driven to rotate forward by external power, the one-way sleeve 3, being fixedly connected to the inner wall of the generator pulley 1, will rotate forward along with the generator pulley 1. At this time, the inner wall of the one-way sleeve 3 will generate friction on the roller 24 set in the mounting groove 22 of the ring 21, pushing the roller 24 to move along the guide structure of the mounting groove 22 towards the end of the bottom wall of the mounting groove 22 closer to the center of the ring 21. As the roller 24 moves, the elastic element 23 is compressed and accumulates elastic potential energy. The roller 24 will be tightly locked between the inner wall of the one-way sleeve 3 and the bottom wall of the mounting groove 22, forming a rigid connection. In this way, the rotation of the one-way sleeve 3 can be transmitted to the ring 21 through the roller 24, and the ring 21 is fixed to the outer side of the middle part of the spindle 2, thereby driving the spindle 2 to rotate forward together, realizing the transmission of power.

[0042] When the generator pulley 1 rotates in the reverse direction, the one-way sleeve 3 also rotates in the reverse direction. At this time, the direction of the frictional force between the inner wall of the one-way sleeve 3 and the roller 24 changes. Under the action of friction and the elastic force of the elastic element 23 restoring its deformation, the roller 24 moves along the guide structure of the mounting groove 22 towards the end of the bottom wall of the mounting groove 22 that is farther from the center of the ring 21. Since the distance from any point to the center of the ring 21 gradually increases as the bottom wall of the mounting groove 22 extends from the midpoint to both ends, and the wedge angle is in the range of 5 degrees to 60 degrees, a gap will appear between the roller 24 and the inner wall of the one-way sleeve 3, and a rigid connection cannot be formed. Therefore, the reverse rotation of the one-way sleeve 3 cannot be transmitted to the ring 21 and the spindle 2, and the spindle 2 remains stationary, achieving the effect of one-way transmission.

[0043] Throughout the entire operation, bearing 4 ensures flexible relative rotation between generator pulley 1 and spindle 2, reducing frictional losses between them. Oil seal ring 5 seals both sides of bearing 4, effectively preventing lubricant leakage and the entry of external impurities, ensuring the normal operation and service life of the internal components of the one-way pulley. Mounting groove 22 is provided on ring 21 for mounting rollers 24, eliminating the bearing cage between one-way sleeve 3 and ring 21. The combined use of one-way sleeve 3 and rollers 24 reduces overall weight and lowers production costs.

[0044] Achieve unidirectional transmission: It can only transmit forward rotation, and cannot transmit reverse rotation, ensuring that the spindle remains stationary when needed, thus meeting specific transmission requirements.

[0045] Reduce friction loss: The bearing ensures that the generator pulley and spindle can rotate flexibly relative to each other, reducing friction between them and improving operating efficiency.

[0046] Ensuring component operation and lifespan: The oil seal rings on both sides of the bearing play a sealing role, preventing lubricating oil leakage and external impurities from entering, ensuring the normal operation of the internal components of the one-way wheel, and extending its service life.

[0047] Optimize structure and cost: Install rollers by creating mounting grooves on the ring, eliminating the need for the bearing cage between the one-way sleeve and the ring. By using the one-way sleeve and rollers in conjunction, the overall weight is reduced, thus lowering production costs.

[0048] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A novel automotive electric one-way wheel, characterized in that, include: The mandrel (2) has a ring (21) fixedly installed on its outer side; The generator pulley (1) is rotatably mounted on the outside of the spindle (2) via a bearing (4); Multiple mounting slots (22) are arranged in a circumferential array on the surface of the annulus (21); An elastic element (23) is installed on the inner sidewall of each of the mounting slots (22); Rollers (24) are disposed in each of the mounting slots (22) and connected to one end of the corresponding elastic element (23). The rollers (24) are capable of moving along their length within the mounting slots (22). One-way sleeve (3) is fitted on the outside of the ring (21) and fixedly connected to the inner wall of the generator pulley (1). A gap is left between the inner wall of the one-way sleeve (3) and the outer circumferential surface of the ring (21). The bottom wall of the mounting groove (22) is horizontal and is tangent to the inscribed circle drawn from its midpoint. As the bottom wall of the mounting groove (22) extends from its midpoint to both ends, the distance from any point on the bottom wall to the center of the annulus (21) gradually increases. When the generator pulley (1) rotates in the forward direction, the elastic element (23) drives the roller (24) to move along the mounting groove (22) toward its end, so that the roller (24) is wedged between the end of the mounting groove (22) and the inner wall of the one-way sleeve (3); when the generator pulley (1) rotates in the reverse direction, the roller (24) overcomes the force of the elastic element (23) and moves toward the midpoint of the mounting groove (22), releasing the wedged state with the inner wall of the one-way sleeve (3).

2. A novel automotive electric one-way wheel according to claim 1, characterized in that: As the bottom wall of the mounting groove (22) extends from its midpoint to both ends, the wedge angle range formed by the gradual increase in distance from any point on the bottom wall to the center of the ring (21) is 5 degrees to 60 degrees.

3. A novel automotive electric one-way wheel according to claim 2, characterized in that: The mounting groove (22) has guide structures on both sides for guiding the roller (24) to move along the length of the mounting groove (22).

4. A novel automotive electric one-way wheel according to claim 3, characterized in that: The one-way sleeve (3) is fixedly connected to the inner wall of the generator pulley (1) by means of interference fit, welding or bolt connection.

5. A novel automotive electric one-way wheel according to claim 4, characterized in that: The number of mounting slots (22) is 5 to 12, and they are evenly distributed along the circumference of the ring (21).

6. A novel automotive electric one-way wheel according to claim 5, characterized in that: The elastic element (23) is a helical spring or a wave spring.

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