A positioning device for a planetary reduction gear mechanism at the wheel end of an axle
By introducing components such as servo lead screws, motors, and clamping plates into the planetary reduction mechanism at the wheel end of the axle, the problem of the existing device being unable to adjust the position in real time is solved, and the precise positioning and stable connection of the planetary reduction mechanism are realized.
Patent Information
- Application Number
- CN202521581944.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-28
- Publication Date
- 2026-11-06
- Estimated Expiration
- 2035-07-28
AI Technical Summary
The existing positioning device for the planetary reduction gear mechanism at the wheel end of the axle cannot be adjusted in real time, which affects its performance.
The planetary reduction mechanism is adjusted laterally and angularly by using components such as a first servo lead screw, a geared motor, a bearing plate, and a second servo lead screw. It is fixed by an electric telescopic rod and a clamping plate, and is combined with an industrial positioning camera for assisted positioning.
It enables real-time position adjustment and fixation of the planetary reduction mechanism, improving the positioning effect, and ensures connection stability by clearing gaps with a fan.
Smart Images

Figure CN224944250U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of axle wheel end positioning technology, and particularly relates to a positioning device for axle wheel end planetary reduction mechanism. Background Technology
[0002] As a connecting component in modern automobiles, the axle's main function is to connect the vehicle frame and the wheel hubs, while also providing fixed space for transmission components. In the current use of axles, it is often necessary to install planetary reduction mechanisms at their wheel ends to transmit the rotational power sent to the wheel hubs. At this time, a positioning device for the planetary reduction mechanism at the wheel end of the axle is required to facilitate the subsequent installation of the planetary reduction mechanism.
[0003] In the prior art, such as the patent publication number CN220517903U, a wheel-end planetary reduction mechanism and axle assembly for a vehicle axle are described. The wheel-end planetary reduction mechanism of the axle includes an axle, a wheel hub, a planetary reducer, a half-shaft, and a gear ring bracket. The half-shaft passes through the axle and exits from the outer end of the axle. The planetary reducer includes a sun gear, planetary gears, a planetary carrier, and a gear ring. The sun gear is connected to the part of the half-shaft that exits the axle. The planetary carrier is fixedly connected to the wheel hub. The planetary gears are pivotally connected to the planetary carrier. The gear ring is wrapped around the planetary gears. The inner and outer sides of the planetary gears mesh with the sun gear and the gear ring, respectively. The inner edge of the gear ring bracket is fixedly connected to the axle, and the outer edge of the gear ring bracket forms a clamping end. The planetary carrier is equipped with a support member, which supports the outer end of the gear ring. The clamping end abuts against the inner end of the gear ring and is synchronously connected to the gear ring.
[0004] The existing axle wheel-end planetary reduction mechanism positioning device lacks a position adjustment component, which means that the position of the planetary reduction mechanism cannot be adjusted in real time according to the positioning information during the use of the device, thus affecting the device's performance. Utility Model Content
[0005] To achieve the above objectives, the present invention adopts the following technical solution: A positioning device for a planetary reduction gear mechanism at the wheel end of an axle includes a first servo screw and a shielding shell. The output end of the first servo screw is fixedly connected to the shielding shell, and a geared motor is fixedly connected inside the shielding shell. The output end of the geared motor is fixedly connected to a support plate, and a second servo screw is fixedly connected to the top of the support plate. The output end of the second servo screw is fitted with an insertion hole, and a spring telescopic rod is fixedly connected to the output end of the second servo screw, with the output end of the spring telescopic rod extending to the inside of the insertion hole. A clamping buckle is fixedly connected to the tail end of the spring telescopic rod, and an industrial positioning camera is fixedly connected to the output end of the second servo screw, with the industrial positioning camera located outside the spring telescopic rod.
[0006] Preferably, a fixing plate is fixedly connected to the outer surface of the first servo screw, and four fixing plates are provided, with a threaded fixing hole through the top of the fixing plate.
[0007] Preferably, the output end of the second servo screw is fixedly connected to an electric telescopic rod, and four electric telescopic rods are provided, with the electric telescopic rods located outside the spring telescopic rod.
[0008] Preferably, a clamping plate is fixedly connected to the tail end of the electric telescopic rod.
[0009] Preferably, a connecting plate is fixedly connected to the front side of the second servo screw.
[0010] Preferably, a fixing shell is connected through the top of the connecting plate, and two fixing shells are provided.
[0011] Preferably, a motor is fixedly connected to the top of the fixed housing, and a fan is fixedly connected to the output end of the motor.
[0012] Compared with the prior art, the present invention has the following advantages: This invention adds a first servo lead screw, a geared motor, a bearing plate, and a second servo lead screw. When the first servo lead screw is energized, it drives the planetary reduction mechanism to move laterally, and the geared motor rotates to adjust the angle of the planetary reduction mechanism. When the second servo lead screw is energized, it drives the planetary reduction mechanism to move up and down, thereby adjusting the planetary reduction mechanism in real time according to the position of the axle wheel end, improving the positioning effect of the device.
[0013] This utility model adds an electric telescopic rod and a clamping plate. The electric telescopic rod extends or retracts, causing the clamping plate to move and generate a clamping force on the wheel end of the axle or the planetary reduction mechanism, thereby completing the fixation of the planetary reduction mechanism.
[0014] This invention adds an electric motor and a fan. The electric motor transmits rotational power to the inside of the fan through electromagnetic effect. At this time, the fan continuously delivers air to the gap between the axle wheel end and the planetary reduction mechanism for cleaning, ensuring the stability of the subsequent connection between the axle wheel end and the planetary reduction mechanism. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the positioning device for a planetary reduction gear mechanism at the wheel end of an axle, as proposed in this utility model. Figure 2 This is a schematic diagram of the rear structure of a positioning device for a planetary reduction gear mechanism at the wheel end of an axle, as proposed in this utility model. Figure 3 This is a cross-sectional view of the connection structure of the second servo screw output end proposed in this utility model; Figure 4This is a cross-sectional view of the connecting part of the shielding shell proposed in this utility model; Figure 5 This is a cross-sectional view of the connecting part of the fixed shell proposed in this utility model.
[0016] In the diagram: 1. First servo lead screw; 2. Cover shell; 3. Gear motor; 4. Bearing plate; 5. Second servo lead screw; 6. Insertion hole; 7. Spring telescopic rod; 8. Clamping buckle; 9. Industrial positioning camera; 10. Fixing plate; 11. Threaded fixing hole; 12. Electric telescopic rod; 13. Clamping plate; 14. Connecting plate; 15. Fixing shell; 16. Motor; 17. Fan. Detailed Implementation
[0017] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.
[0018] Reference Figures 1-4A positioning device for a planetary reduction gear mechanism at the wheel end of an axle includes a first servo screw 1 and a retaining shell 2. The output end of the first servo screw 1 is fixedly connected to the retaining shell 2. The first servo screw 1 provides a fixing point for the retaining shell 2 and the fixing plate 10 fixedly connected to its outer surface. When the position of the planetary reduction gear mechanism needs to be adjusted, electrical energy can be transmitted to the interior of the first servo screw 1 via an external control component. At this time, the first servo screw 1 drives the planetary reduction gear mechanism indirectly connected to its output end to move laterally. The retaining shell 2 is fixedly connected to the output end of the first servo screw 1, providing a fixing point for the geared motor 3 fixedly connected inside it. The geared motor 3 is fixedly connected inside the retaining shell 2. When the connection angle of the planetary reduction gear mechanism needs to be adjusted, electrical energy can be transmitted to the interior of the first servo screw 1 via an external control component. The control unit transmits electrical energy to the inside of the geared motor 3. The geared motor 3 then transmits rotational power to the inside of the support plate 4 via electromagnetic effect. The output end of the geared motor 3 is fixedly connected to the support plate 4, and the support plate 4 is also fixedly connected to the output end of the geared motor 3. When the rotational power is transmitted to the inside of the planetary reduction mechanism via the geared motor 3, the planetary reduction mechanism rotates, thereby adjusting the positioning angle of the planetary reduction mechanism. A second servo screw 5 is fixedly connected to the top of the support plate 4. When it is necessary to adjust the vertical position of the planetary reduction mechanism, electrical energy can be transmitted to the inside of the second servo screw 5 via the external control unit. At this time, the second servo screw 5 drives the planetary reduction mechanism connected to its output end to move up and down; the output end of the second servo screw 5 engages... An insertion hole 6 is connected to the output end of the second servo screw 5. When the planetary reduction mechanism needs to be fixed, it can be inserted into the insertion hole 6 by external force. A spring telescopic rod 7 is fixedly connected to the output end of the second servo screw 5. Under the elastic potential energy of the spring inside the spring telescopic rod 7, the clamping buckle 8 fixedly connected to its tail end moves inward, and the output end of the spring telescopic rod 7 extends to the inside of the insertion hole 6. The clamping buckle 8 is fixedly connected to the tail end of the spring telescopic rod 7. The clamping buckle 8 moves inward under the drive of the spring telescopic rod 7, generating a clamping force on the planetary reduction mechanism and completing the fixing of the planetary reduction mechanism. An industrial positioning camera 9 is fixedly connected to the output end of the second servo screw 5. The positioning camera 9 records the wheel end image of the external axle and transmits the image information to the internal part of the external display component to assist the staff in confirming the positioning of the wheel end of the axle and the planetary reduction mechanism. The industrial positioning camera 9 is located outside the spring telescopic rod 7. The outer surface of the first servo screw 1 is fixedly connected to the fixing plate 10. The fixing plate 10 is fixedly connected to the outer surface of the first servo screw 1 and provides a fixing point for the threaded fixing hole 11 through the top of the first servo screw 1. There are four fixing plates 10. The top of the fixing plate 10 is provided with a threaded fixing hole 11. When it is necessary to fix the device, the external bolt can be inserted into the threaded fixing hole 11 by external force and then inserted into the external fixing plane to complete the overall fixation of the device.
[0019] Reference Figures 2-3 The output end of the second servo screw 5 is fixedly connected to an electric telescopic rod 12. When it is necessary to fix the planetary reduction mechanism, electrical energy can be transmitted to the inside of the electric telescopic rod 12 through an external control component. At this time, the electric telescopic rod 12 drives the clamping plate 13 fixedly connected to its tail end to move inward. There are four electric telescopic rods 12, and the electric telescopic rods 12 are located outside the spring telescopic rod 7. The tail end of the electric telescopic rod 12 is fixedly connected to the clamping plate 13. The clamping plate 13 moves inward under the drive of the electric telescopic rod 12 to generate clamping force on the planetary reduction mechanism and the axle wheel end, assisting the operator in fixing the planetary reduction mechanism and the axle wheel end.
[0020] Reference Figure 1 , Figure 2 and Figure 5 A connecting plate 14 is fixedly connected to the front of the second servo screw 5. The connecting plate 14 is fixedly connected to the front of the second servo screw 5, providing a fixing point for the fixing shell 15 that is connected through to its top. The fixing shell 15 is connected through to the top of the connecting plate 14, providing a fixing point for the motor 16 that is fixedly connected to its top. There are two fixing shells 15. The top of the fixing shell 15 is fixedly connected to the motor 16. When it is necessary to clean between the planetary reduction mechanism and the axle wheel end, electrical energy can be transmitted to the inside of the motor 16 through an external control component. At this time, the motor 16 transmits the rotational power to the inside of the fan 17 through the electromagnetic effect. The output end of the motor 16 is fixedly connected to the fan 17. When the rotational power is transmitted to the inside of the fan 17 through the motor 16, the fan 17 rotates, generating suction on the air outside the fixing shell 15, and continuously delivering air to the gap between the planetary reduction mechanism and the axle wheel end, thereby completing the cleaning between the planetary reduction mechanism and the axle wheel end.
[0021] The functional principle of this utility model can be explained through the following operation: First, the external bolt is inserted into the threaded fixing hole 11 by external force, and then the external bolt is inserted into the external fixing plane to complete the overall fixation of the device. Then, the planetary reduction mechanism is moved to the inside of the insertion hole 6. At the same time, under the action of the elastic potential energy of the spring inside the spring telescopic rod 7, it drives the clamping buckle 8 fixedly connected to its tail end to move inward. The clamping buckle 8 moves inward under the drive of the spring telescopic rod 7, generating a clamping force on the planetary reduction mechanism to complete the fixation of the planetary reduction mechanism. The industrial positioning camera 9 records the wheel end image of the external axle and transmits the image information to the inside of the external display component to assist the staff in confirming the positioning of the axle wheel end and the planetary reduction mechanism. Then, it assists the staff in fixing the planetary reduction mechanism and the axle wheel end.
[0022] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A positioning device of an axle wheel end planetary reduction mechanism, comprising a first servo-screw rod (1) and a shielding shell (2), characterized in that, The output end of the first servo screw (1) is fixedly connected to a shielding shell (2), and a geared motor (3) is fixedly connected inside the shielding shell (2). The output end of the geared motor (3) is fixedly connected to a bearing plate (4), and the top of the bearing plate (4) is fixedly connected to a second servo screw (5). The output end of the second servo screw (5) is fitted with an insertion hole (6), and the output end of the second servo screw (5) is fixedly connected to a spring telescopic rod (7). The output end of the spring telescopic rod (7) extends to the inside of the insertion hole (6). The tail end of the spring telescopic rod (7) is fixedly connected to a clamping buckle (8). The output end of the second servo screw (5) is fixedly connected to an industrial positioning camera (9), and the industrial positioning camera (9) is located outside the spring telescopic rod (7).
2. A positioning device for a planetary reduction mechanism of an axle wheel end as set forth in claim 1, characterized in that The outer surface of the first servo screw (1) is fixedly connected with a fixing plate (10), and four fixing plates (10) are provided. The top of the fixing plate (10) is provided with a threaded fixing hole (11).
3. The positioning device for a planetary reduction gear mechanism at the wheel end of an axle according to claim 1, characterized in that, The output end of the second servo screw (5) is fixedly connected to an electric telescopic rod (12). There are four electric telescopic rods (12), and the electric telescopic rods (12) are located outside the spring telescopic rod (7).
4. The positioning device for a planetary reduction gear mechanism at the wheel end of an axle according to claim 3, characterized in that, The tail end of the electric telescopic rod (12) is fixedly connected to a clamping plate (13).
5. The positioning device for a planetary reduction gear mechanism at the wheel end of an axle according to claim 1, characterized in that, The second servo screw (5) is fixedly connected to a connecting plate (14) on its front side.
6. The positioning device for a planetary reduction gear mechanism at the wheel end of an axle according to claim 5, characterized in that, The top of the connecting plate (14) is connected to a fixing shell (15), and there are two fixing shells (15).
7. The positioning device for a planetary reduction gear mechanism at the wheel end of an axle according to claim 6, characterized in that, The top of the fixed housing (15) is fixedly connected to an electric motor (16), and the output end of the electric motor (16) is fixedly connected to a fan (17).
Citation Information
Patent Citations
Wheel end planetary reducing mechanism of axle and axle assembly
CN220517903U
