Transmission and vehicle with same

Abstract

The utility model discloses a transmission and a vehicle with the same, and relates to the field of automobile parts. The transmission comprises a shell, a gear ring and a gasket, the gear ring is arranged in the shell, the gasket is arranged between the gear ring and the shell in the axial direction, a clamping structure is arranged between the gasket and the shell, and the clamping structure can limit radial movement of the gasket. According to the transmission provided by the utility model, the gasket can be limited in the radial direction, and the problem that the gasket is bent, folded and the like cannot occur in the process from reverse dragging to forward dragging of the gear ring.

Description

Technical Field

[0001] The utility model relates to the field of automobile parts, in particular to a transmission and a vehicle having the same. Background Art

[0002] The transmission ensures proper power transfer to the wheels during cornering, allowing the inner and outer wheels to rotate at different speeds for smooth cornering. It also ensures proper power distribution to each drive wheel in complex road conditions (e.g., uneven or slippery surfaces), improving vehicle efficiency, safety, and stability.

[0003] An automotive planetary transmission primarily consists of a sun gear, planet gears, a ring gear, and a planet carrier. Compared to traditional transmissions, it features power splitting and a coaxial transmission structure with each sun gear, resulting in a compact structure and smaller size. Furthermore, because several planet gears are evenly distributed around the sun gear to share the load, each gear bears a smaller load, allowing for a smaller module and greater load-bearing capacity.

[0004] When a planetary transmission turns a corner, friction forms between the ring gear and the housing. To avoid this friction and extend the service life of the ring gear and housing, a gasket is required between the ring gear and the housing for protection. When the car switches from reverse to forward towing, the tooth side of the ring gear first contacts the tooth side of the housing, and then the end face of the ring gear contacts the end face of the housing. The gasket is installed between the ring gear and the housing. Affected by the floating force of the ring gear, the gasket has room to move radially and axially. If the gasket is not restricted in the radial direction, the ring gear will press against the gasket during the switch from reverse to forward towing. Coupled with external factors such as vibration, this may cause the gasket to bend or fold. Utility Model Content

[0005] In view of this, the utility model provides a transmission and a vehicle having the same, which can limit the gasket in the radial direction to ensure that the gasket will not be bent or folded during the process of the gear ring from reverse drag to forward drag.

[0006] The utility model provides a transmission, comprising a housing, a gear ring, and a washer, wherein the gear ring is arranged inside the housing, the washer is axially arranged between the gear ring and the housing, and a clamping structure is provided between the washer and the housing, and the clamping structure can limit the radial movement of the washer.

[0007] Furthermore, a receiving groove is provided in the shell, and the receiving groove is an axial step groove, and the axial step groove includes a large groove section and a small groove section. The inner diameter of the large groove section is larger than the inner diameter of the small groove section, and the gear ring is arranged in the large groove section.

[0008] Furthermore, the inner wall of the large slot section is provided with a mounting groove parallel to its axial direction, and the outer side of the gear ring is provided with teeth, and the teeth are located in the mounting groove.

[0009] Furthermore, the washer is arranged on the step surface of the accommodating groove, and the end of the gear ring is in contact with the washer.

[0010] Furthermore, the clamping structure includes a clamping claw and a clamping groove, the clamping claw is vertically arranged on the inner ring of the washer, the clamping groove is arranged at the connection between the step surface and the small groove section, and the clamping claw is clamped in the clamping groove.

[0011] Furthermore, the clamping claw includes a fitting surface and a clamping arm, the fitting surface is perpendicular to the inner ring of the gasket, and the clamping arm is arranged on both sides of the fitting surface and extends from both sides of the fitting surface toward the inside of the gasket.

[0012] Furthermore, the slot includes a first slot wall, a second slot wall, a third slot wall, and a fourth slot wall. The first slot wall is arranged parallel to the inner wall of the large slot section, the second slot wall is connected to the bottom of the first slot wall, and extends vertically from the bottom of the first slot wall to the interior of the shell. The third slot wall and the fourth slot wall are arranged parallel to each other, the third slot wall is connected to one end of the first slot wall and the second slot wall, and the fourth slot wall is connected to the other end of the first slot wall and the second slot wall.

[0013] Furthermore, the distance between the two clamping arms is comparable to the distance between the third slot wall and the fourth slot wall, and the height of the fitting surface is comparable to the height of the first slot wall.

[0014] Furthermore, a planetary gear and a sun gear are provided inside the ring gear, the side of the sun gear is engaged with the planetary gear, the middle of the sun gear is connected to the output shaft, the side of the planetary gear is engaged with the ring gear, and the middle of the planetary gear is connected to the planet carrier.

[0015] The utility model also provides a vehicle, comprising the transmission as described above.

[0016] Compared with the existing technology, the present invention has the following beneficial technical effects:

[0017] The utility model provides a transmission and a vehicle equipped with the same, wherein a gasket is arranged between the gear ring and the housing to improve the service life of the gear ring and the housing, and a clamping structure is provided between the gasket and the housing, the clamping structure comprising a claw arranged at the inner diameter of the gasket and perpendicular to the end face of the gasket, and a clamping groove arranged at the step surface of the housing, the clamping arms on both sides of the claw abut against the two side walls of the groove, and the fitting surface of the claw fits against the inner wall of the groove, limiting the radial movement of the gasket, and preventing the gasket from being bent or folded in the process of the gear ring from reverse dragging to forward dragging, thereby protecting the integrity of the gasket. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic structural diagram of a transmission provided by the utility model;

[0019] Figure 2 for Figure 1 The structural diagram without the ring gear;

[0020] Figure 3 This is a schematic structural diagram of the housing in the present invention;

[0021] Figure 4 This is a schematic diagram of the structure of the gasket in the utility model;

[0022] Figure 5 This is a schematic structural diagram of the clamping structure in the present utility model;

[0023] Figure 6 This is a schematic diagram of the structure of the card slot in the utility model;

[0024] Figure 7 It is a structural schematic diagram of the clamping claw in the utility model.

[0025] Among them: 10-shell; 11-accommodating groove; 111-large groove section; 112-small groove section; 113-installation groove; 114-step surface; 20-gear ring; 21-tooth; 30-washer; 40-clamping structure; 41-claw; 411-fitting surface; 412-clamping arm; 42-clamping groove; 421-first groove wall; 422-second groove wall; 423-third groove wall; 424-fourth groove wall. DETAILED DESCRIPTION

[0026] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0027] In the description of the present invention, it should be noted that the orientation or position relationship indicated in the description is based on the orientation or position relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the parts or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0028] See also Figure 1 and Figure 2 The present invention provides a transmission comprising a housing 10, a ring gear 20, and a washer 30. The ring gear 20 is disposed within the housing 10, and the washer 30 is disposed between the ring gear 20 and the housing 10. A clamping structure 40 is provided between the washer 30 and the housing 10, and the clamping structure 40 is capable of limiting radial movement of the washer 30. The clamping structure 40 provided between the washer 30 and the housing 10 limits the radial position of the washer 30, ensuring that the washer 30 will not be bent or folded during the process of the ring gear 20 switching from reverse to forward drag.

[0029] Furthermore, planetary gears and sun gears are provided inside the ring gear 20. The sun gear is located in the middle of the ring gear 20, and the planetary gears are located between the sun gear and the ring gear 20. The side of the sun gear is engaged with the planetary gears, and the middle of the sun gear is connected to the output shaft. The side of the planetary gear is engaged with the ring gear 20, and the middle of the planetary gear is connected to the planet carrier. The sun gear, planetary gears, planet carrier, ring gear 20, and housing 10 together constitute a planetary transmission. When the car turns, the planetary transmission can ensure that power is reasonably transmitted to the wheels, allowing the inner wheels and outer wheels to rotate at different speeds to ensure that the car can turn smoothly.

[0030] Please also refer to Figure 3The housing 10 is provided with a receiving groove 11 for accommodating components such as the ring gear 20, sun gear, planetary gears, and planetary carrier. Specifically, the receiving groove 11 is an axially stepped groove comprising a large groove section 111 and a small groove section 112. The inner diameter of the large groove section 111 is larger than that of the small groove section 112 and is approximately the same size as the outer diameter of the ring gear 20. The ring gear 20 is positioned within the large groove section 111. The inner wall of the large groove section 111 is provided with a mounting groove 113 parallel to its axial direction. The outer side of the ring gear 20 is provided with teeth 21, which are positioned within the mounting groove 113. A washer 30 is positioned on a stepped surface 114, with the end of the ring gear 20 resting on the washer 30. Since friction occurs between the ring gear 20 and the housing 10 when the planetary transmission turns, a washer 30 is used to protect the ring gear 20 and the housing 10 to prevent this friction and extend the service life of the two groups. However, when the gear ring 20 is in the process of switching from reverse drag to forward drag, the teeth 21 of the gear ring 20 first contact the mounting groove 113 on the housing 10, and then the end face of the gear ring 20 contacts the step surface 114. Therefore, the gear ring 20 will float in the radial and axial directions. Due to the floating force of the gear ring 20, the washer 30 will also have space to move in the radial and axial directions. When the washer 30 moves in the radial direction, the washer 30 will partially break away from the step surface 114. When the gear ring 20 is in the process of switching from reverse drag to forward drag, the gear ring 20 will press against the washer 30. Coupled with external factors such as vibration, the washer 30 may be bent or folded. Therefore, the present invention sets a clamping structure 40 between the washer 30 and the housing 10. The clamping structure 40 can limit the radial movement of the washer 30 and prevent the washer 30 from being bent or folded.

[0031] See also Figure 4 and Figure 5 The clamping structure 40 includes a claw 41 and a slot 42. The claw 41 is vertically arranged on the inner ring of the washer 30, and the slot 42 is arranged at the connection between the step surface 114 and the small groove section 112. The claw 41 is clamped in the slot 42. Since the claw 41 on the washer 30 is clamped in the slot 42 on the housing 10, the radial movement of the washer 30 can be restricted. The radial restriction can prevent the washer 30 from being bent or folded during the process of the gear ring 20 from reverse dragging to forward dragging, thereby protecting the integrity of the washer 30 and extending the service life of the gear ring 20 and the housing 10.

[0032] See also Figure 6 and Figure 7The latching slot 42 includes a first slot wall 421, a second slot wall 422, a third slot wall 423, and a fourth slot wall 424. The first slot wall 421 is parallel to the inner wall of the large slot section 111. The second slot wall 422 is connected to the bottom of the first slot wall 421 and extends vertically from the bottom of the first slot wall 421 into the interior of the housing 10. The third slot wall 423 and the fourth slot wall 424 are parallel to each other. The third slot wall 423 is connected to one end of the first slot wall 421 and the second slot wall 422. The fourth slot wall 424 is connected to the other ends of the first slot wall 421 and the second slot wall 422. The claw 41 includes a contact surface 411 and a clamping arm 412. The contact surface 411 is perpendicular to the inner ring of the gasket 30. The clamping arm 412 is provided on both sides of the contact surface 411 and extends from both sides of the contact surface 411 into the interior of the gasket 30. The distance between the two clamping arms 412 is comparable to the distance between the third groove wall 423 and the fourth groove wall 424. That is, the clamping arms 412 on both sides of the claw 41 can abut against the third groove wall 423 and the fourth groove wall 424 of the slot 42, limiting the radial movement of the gasket 30. The height of the contact surface 411 is comparable to the height of the first groove wall 421. That is, the contact surface 411 of the claw 41 can abut against the first groove wall 421 of the slot 41, further limiting the radial movement of the gasket 30 and ensuring that the claw 41 can be clamped in the slot 42 to limit the position of the gasket 30. It should be noted that during the production and assembly process, in order to prevent the angle of the claw 41 from tilting during transportation, it is necessary to use a tool to tighten it. This ensures that the contact surface 411 is in contact with the first groove wall 421 and the clamping arms 412 abut against the third groove wall 423 and the fourth groove wall 424, thereby limiting the radial movement of the gasket 30.

[0033] It should be noted that the number of claws 41 and slots 42 is not limited and can be set according to the force generated by the gear ring 20 in actual production. In the present utility model, there are four claws 41, which are evenly distributed on the inner ring of the washer 30. Correspondingly, there are four slots 42, which are evenly arranged at the connection between the step surface 114 and the small groove section 112 to limit the radial movement of the washer 30.

[0034] From the above description, it can be known that the transmission provided by the present invention provides a gasket 30 between the ring gear 20 and the housing 10 to improve the service life of the ring gear 20 and the housing 10, and at the same time, a clamping structure 40 is provided between the gasket 30 and the housing 10, and the clamping structure 40 includes a claw 41 arranged at the inner diameter of the gasket 30 and perpendicular to the end face of the gasket 30, and a clamping groove 42 arranged at the step surface 114 of the housing 10, the clamping arms 412 on both sides of the claw 41 abut against the two side walls of the clamping groove 42, and the fitting surface 411 of the claw 41 fits against the inner wall of the clamping groove 42, thereby limiting the radial movement of the gasket 30, and preventing the gasket 30 from being bent or folded in the process of the ring gear 20 from reverse dragging to forward dragging, thereby protecting the integrity of the gasket 30.

[0035] The present invention also provides a vehicle, including the transmission as described above. For other technical features of the vehicle, please refer to the prior art and will not be described in detail here.

[0036] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment, it is not intended to limit the present invention. Any technician familiar with this profession can make some changes or modifications to equivalent embodiments of the above-disclosed technical contents without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A transmission, characterized in that: The invention comprises a housing (10), a gear ring (20), and a washer (30), wherein the gear ring (20) is arranged inside the housing (10), the washer (30) is axially arranged between the gear ring (20) and the housing (10), and a clamping structure (40) is provided between the washer (30) and the housing (10), and the clamping structure (40) can limit the radial movement of the washer (30).

2. The transmission according to claim 1, characterized in that: An accommodating groove (11) is provided in the housing (10), the accommodating groove (11) being an axial step groove, the axial step groove comprising a large groove section (111) and a small groove section (112), the inner diameter of the large groove section (111) being larger than the inner diameter of the small groove section (112), and the gear ring (20) being arranged in the large groove section (111).

3. The transmission according to claim 2, characterized in that: The inner wall of the large slot section (111) is provided with a mounting slot (113) parallel to its axial direction, and the outer side of the gear ring (20) is provided with teeth (21), and the teeth (21) are located in the mounting slot (113).

4. The transmission according to claim 2, characterized in that: The washer (30) is arranged on the step surface (114) of the accommodating groove (11), and the end of the gear ring (20) is in contact with the washer (30).

5. The transmission according to claim 4, characterized in that: The clamping structure (40) comprises a clamping claw (41) and a clamping groove (42), wherein the clamping claw (41) is vertically arranged on the inner ring of the washer (30), and the clamping groove (42) is arranged at the connection between the step surface (114) and the small groove section (112), and the clamping claw (41) is clamped in the clamping groove (42).

6. The transmission according to claim 5, characterized in that: The clamping claw (41) includes a fitting surface (411) and a clamping arm (412), wherein the fitting surface (411) is perpendicular to the inner ring of the gasket (30), and the clamping arm (412) is arranged on both sides of the fitting surface (411) and extends from both sides of the fitting surface (411) toward the interior of the gasket (30).

7. The transmission according to claim 6, characterized in that: The slot (42) includes a first slot wall (421), a second slot wall (422), a third slot wall (423), and a fourth slot wall (424); the first slot wall (421) is arranged parallel to the inner wall of the large slot section (111); the second slot wall (422) is connected to the bottom of the first slot wall (421) and extends vertically from the bottom of the first slot wall (421) to the inside of the shell (10); the third slot wall (423) and the fourth slot wall (424) are arranged parallel to each other; the third slot wall (423) is connected to one end of the first slot wall (421) and the second slot wall (422); and the fourth slot wall (424) is connected to the other end of the first slot wall (421) and the second slot wall (422).

8. The transmission according to claim 7, characterized in that: The distance between the two clamping arms (412) is comparable to the distance between the third groove wall (423) and the fourth groove wall (424), and the height of the fitting surface (411) is comparable to the height of the first groove wall (421).

9. The transmission according to claim 1, characterized in that: The invention also includes planetary wheels, a sun wheel, and a planetary carrier. The planetary wheels and the sun wheel are arranged inside the ring gear (20). The side of the sun wheel is engaged with the planetary wheels. The middle of the sun wheel is connected to the output shaft. The side of the planetary wheels is engaged with the ring gear (20). The middle of the planetary wheels is connected to the planetary carrier.

10. A vehicle, characterized in that: Comprising a transmission as claimed in any one of claims 1 to 9.

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