A planetary gear carrier for a hub reduction

Abstract

The utility model belongs to mechanical transmission device technical field discloses a kind of planetary gear carrier of wheel edge speed reducer, including planet carrier body and multiple elastic telescopic rods of rotation connection on the planet carrier body, multiple elastic telescopic rods are all equipped with planetary gear, multiple planetary gears are jointly meshed and connected with sun gear between, and multiple planetary gears are jointly meshed and connected with ring gear between, connection unit is arranged between elastic telescopic rod and planetary gear, the connection unit is used to fix elastic telescopic rod and planetary gear, the utility model is extracted by the setting of elastic telescopic rod and connection unit, so that only need to extract limit block and rotate limit block to make planetary gear extract from passage place when replacing planetary gear, shorten the replacement time of planetary gear, improve the efficiency of replacing planetary gear.

Description

Technical Field

[0001] This utility model relates to the field of mechanical transmission device technology, and more specifically, to a planetary gear carrier for a wheel-side reducer. Background Technology

[0002] A wheel-side reducer is a component in a vehicle's transmission system that reduces input speed and increases output torque. It is widely used in commercial vehicles, construction machinery, and special vehicles. Its core function is to efficiently transmit the power input from the drive axle to the wheels through multi-stage reduction of planetary gear sets, in order to meet the traction requirements of the vehicle under different working conditions. The planetary carrier assembly is one of the core structures of the wheel-side reducer, mainly composed of the planetary carrier body, planetary gears, and supporting components. Its function is to realize the distribution and transmission of power through the meshing of the planetary gears with the sun gear and the ring gear.

[0003] However, when replacing worn planetary gears, traditional planetary gears often require the use of hydraulic tools for forced disassembly, which can easily lead to deformation of the planetary carrier. Furthermore, reinstallation requires repeated adjustments to the meshing clearance between the planetary gears and the sun gear and ring gear, which is time-consuming and significantly affects the maintenance efficiency and cost of the wheel-side reducer.

[0004] In view of this, we propose a planetary carrier assembly for a wheel-side reducer. Utility Model Content

[0005] Technical problems to be solved The purpose of this utility model is to provide a planetary carrier assembly for a wheel-side reducer, so as to solve the problem mentioned in the background art that the efficiency of replacing planetary gears in the planetary carrier assembly of a traditional wheel-side reducer needs to be improved.

[0006] Technical solution

[0007] A planetary carrier assembly for a wheel-side reducer includes a planetary carrier body and a plurality of elastic telescopic rods rotatably connected to the planetary carrier body. Each of the plurality of elastic telescopic rods is fitted with a planetary gear. The plurality of planetary gears are meshed with a sun gear and a gear ring. A connecting unit is provided between the elastic telescopic rods and the planetary gears, and the connecting unit is used to fix the elastic telescopic rods and the planetary gears.

[0008] Preferably, the connecting unit includes a limiting block fixedly connected to the end of the elastic telescopic rod and a limiting groove on the planetary gear that is adapted to the size of the limiting block. The planetary gear is also provided with a channel adapted to the size of the limiting block, and the channel passes through the planetary gear.

[0009] Preferably, the bottom of the elastic telescopic rod is fixedly connected to a rotating seat with a T-shaped cross-section, and the planetary carrier body is provided with a rotating groove that matches the size of the rotating seat.

[0010] Preferably, the elastic telescopic rod includes a main rod and a secondary rod elastically connected to the cavity of the main rod. The main rod is fixedly connected to the rotating seat. A telescopic groove for sliding of the secondary rod is provided in the main rod. A spring is fixedly connected to the bottom of the secondary rod. One end of the spring is fixedly connected to the secondary rod, and the other end of the secondary rod is fixedly connected to the inner bottom wall of the telescopic groove.

[0011] Preferably, two sliders with T-shaped cross-sections and symmetrical arrangement are fixedly connected to the auxiliary rod, and two grooves adapted to the size of the sliders are opened in the telescopic groove.

[0012] Preferably, a limiting plate is fixedly connected to the gear ring, and the limiting plate is used to prevent the limiting block from falling out of the limiting groove.

[0013] Preferably, both the gear ring and the limiting plate have mounting holes. Beneficial effects

[0014] Compared with existing technologies, the advantages of this utility model are: This invention, through the design of an elastic telescopic rod and a connecting unit, allows for planetary gear replacement simply by pulling out the limiting block and rotating it to extract the planetary gear from the channel, thus shortening the replacement time and improving the efficiency of planetary gear replacement.

[0015] This utility model uses a spring to elastically connect the main rod and the auxiliary rod of the elastic telescopic rod, which can absorb the fluctuations and impacts during the operation of the wheel-side reducer, reduce the rigid impact when the planetary gear meshes with the sun gear and the ring gear to a certain extent, and improve the service life of the planetary carrier assembly.

[0016] This invention uses a limiting plate on the gear ring to restrict the displacement of the limiting block, avoiding the problem of the limiting block falling out of the limiting groove due to impact or vibration, and further ensuring the stability of the connection between the planetary gear and the elastic telescopic rod. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is another three-dimensional structural schematic diagram of the present invention; Figure 3 This is an exploded view of the present invention; Figure 4 This is an exploded view of the limiting block and planetary gear of this utility model; Figure 5This is a cross-sectional schematic diagram of the planetary carrier body of this utility model; Figure 6 This is a cross-sectional schematic diagram of the elastic telescopic rod of this utility model.

[0018] The following are the labels in the diagram: 1. Planetary carrier body; 2. Planetary gear; 3. Sun gear; 4. Gear ring; 5. Elastic telescopic rod; 51. Main rod; 52. Secondary rod; 53. Telescopic groove; 54. Slider; 55. Slide groove; 56. Spring; 6. Limiting block; 7. Limiting groove; 71. Channel; 8. Rotating seat; 9. Rotating groove; 10. Limiting plate; 11. Mounting hole. Detailed Implementation

[0019] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0020] In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] Please see Figure 1-6 This utility model provides a technical solution: A planetary carrier assembly for a wheel-side reducer includes a planetary carrier body 1 and multiple elastic telescopic rods 5 rotatably connected to the planetary carrier body 1. Planetary gears 2 are mounted on each of the multiple elastic telescopic rods 5, and a sun gear 3 is meshed with each of the multiple planetary gears 2. A gear ring 4 is also meshed with each of the multiple planetary gears 2. A connecting unit is provided between the elastic telescopic rods 5 and the planetary gears 2 to fix them. This configuration replaces the traditional rigid support device with the elastic telescopic rods 5. The planetary gears 2, mounted on the elastic telescopic rods 5, retain the meshing transmission function of the traditional planetary gear set. Furthermore, the elasticity of the elastic telescopic rods 5 allows the planetary gears 2 to generate a small radial displacement when the load fluctuates, thereby buffering impact and reducing noise. In practical applications, the number of elastic telescopic rods 5 on the planetary carrier body 1 can be adjusted according to the needs of the wheel-side reducer to ensure the balance of power transmission.

[0023] In addition, the connecting unit includes a limiting block 6 fixedly connected to the end of the elastic telescopic rod 5 and a limiting groove 7 on the planetary gear 2 that matches the size of the limiting block 6. The planetary gear 2 also has a channel 71 that matches the size of the limiting block 6, which passes through the planetary gear 2. A rotating seat 8 with a T-shaped cross-section is fixedly connected to the bottom of the elastic telescopic rod 5. The planetary carrier body 1 has a rotating groove 9 that matches the size of the rotating seat 8. That is, the rotating seat 8 drives the planetary gear 2 and the elastic telescopic rod 5 to rotate, while the limiting groove 7 limits the limiting block 6 so that the planetary gear 2 can rotate with the elastic telescopic rod 5. Figure 4 As shown, the limiting groove 7 does not penetrate the elastic telescopic rod 5, while the channel 71 penetrates the elastic telescopic rod 5. During disassembly and installation, the planetary gear 2 allows the limiting block 6 to pass through the channel 71.

[0024] Secondly, the elastic telescopic rod 5 includes a main rod 51 and a secondary rod 52 elastically connected to the cavity of the main rod 51. The main rod 51 is fixedly connected to the rotating seat 8. The main rod 51 has a telescopic groove 53 for sliding of the secondary rod 52. A spring 56 is fixedly connected to the bottom of the secondary rod 52. One end of the spring 56 is fixedly connected to the secondary rod 52, and the other end of the secondary rod 52 is fixedly connected to the inner bottom wall of the telescopic groove 53. Two sliders 54 with T-shaped cross sections and symmetrical arrangement are fixedly connected to the secondary rod 52. Two sliding grooves 55 with sizes adapted to the sliders 54 are opened in the telescopic groove 53. The arrangement of sliders 54 and sliding grooves 55 further ensures the stability of the movement of the secondary rod 52 and the limiting block 6. It should be noted that the elastic telescopic rod 5 can absorb vibration and impact through the elastic deformation of the spring 56, so that the device can adapt to working scenarios under various complex road conditions.

[0025] Furthermore, a limiting plate 10 is fixedly connected to the gear ring 4. The limiting plate 10 is used to prevent the limiting block 6 from falling out of the limiting groove 7. Both the gear ring 4 and the limiting plate 10 are provided with mounting holes 11. In specific installation, the limiting plate 10 and the gear ring 4 can be fixed by passing a screw through the two mounting holes 11. In specific implementation, the limiting plate 10 needs to cover multiple limiting blocks 6 so that it can continuously act on multiple limiting blocks 6 during rotation to prevent the limiting blocks 6 from falling out of the limiting groove 7.

[0026] Working principle: The sun gear 3 transmits power to the planetary gear 2 through gear meshing. While revolving around the sun gear, the planetary gear 2 also rotates around the axis of the elastic telescopic rod 5, thereby driving the gear ring 4 to rotate and outputting power to the wheel. When the worn planetary gear 2 needs to be replaced, first remove the limiting plate 10, then pull up the limiting block 6 from the limiting groove 7, then rotate the limiting block 6 to align it with the channel 71, and then pull out the planetary gear 2. When installing a new planetary gear 2, put it into the elastic telescopic rod 5, align the channel 71 with the limiting groove 7, insert the planetary gear 2, lift the limiting block 6 and rotate it to place it in the limiting groove 7.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A planetary gear carrier for a wheel-side reducer, characterized in that: The system includes a planetary carrier body (1) and multiple elastic telescopic rods (5) rotatably connected to the planetary carrier body (1). Each of the multiple elastic telescopic rods (5) is fitted with a planetary gear (2). The multiple planetary gears (2) are connected to a sun gear (3) through meshing. The multiple planetary gears (2) are also connected to a gear ring (4) through meshing. A connecting unit is provided between the elastic telescopic rods (5) and the planetary gears (2). The connecting unit is used to fix the elastic telescopic rods (5) and the planetary gears (2).

2. The planetary gear carrier of the wheel-side reducer as described in claim 1, characterized in that: The connecting unit includes a limiting block (6) fixedly connected to the end of the elastic telescopic rod (5) and a limiting groove (7) on the planetary gear (2) that is adapted to the size of the limiting block (6). The planetary gear (2) is also provided with a channel (71) adapted to the size of the limiting block (6), and the channel (71) passes through the planetary gear (2).

3. The planetary gear carrier of the wheel-side reducer as described in claim 1, characterized in that: The bottom of the elastic telescopic rod (5) is fixedly connected to a rotating seat (8) with a T-shaped cross section, and the planetary carrier body (1) is provided with a rotating groove (9) that matches the size of the rotating seat (8).

4. The planetary gear carrier of a wheel-side reducer as described in claim 3, characterized in that: The elastic telescopic rod (5) includes a main rod (51) and a secondary rod (52) elastically connected to the cavity of the main rod (51). The main rod (51) is fixedly connected to the rotating seat (8). The main rod (51) has a telescopic groove (53) for sliding of the secondary rod (52). A spring (56) is fixedly connected to the bottom of the secondary rod (52). One end of the spring (56) is fixedly connected to the secondary rod (52), and the other end of the secondary rod (52) is fixedly connected to the inner bottom wall of the telescopic groove (53).

5. The planetary gear carrier of a wheel-side reducer as described in claim 4, characterized in that: Two sliders (54) with T-shaped cross sections and symmetrical arrangement are fixedly connected to the auxiliary rod (52), and two grooves (55) adapted to the size of the sliders (54) are opened in the telescopic groove (53).

6. The planetary gear carrier of a wheel-side reducer as described in claim 1, characterized in that: A limiting plate (10) is fixedly connected to the gear ring (4), and the limiting plate (10) is used to prevent the limiting block (6) from falling out of the limiting groove (7).

7. The planetary gear carrier of a wheel-side reducer as described in claim 6, characterized in that: Mounting holes (11) are provided on both the gear ring (4) and the limiting plate (10).

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