Planet carrier with anti-shifting structure

Abstract

The utility model relates to the technical field of planet carriers, and discloses a planet carrier with an anti-shifting structure, which comprises a planet carrier shaft, two planet fixing plates are fixed on the planet carrier shaft at intervals, planet gears are mounted between the two planet fixing plates, a plurality of planet gears are jointly meshed with a sun gear, and the sun gear is meshed with a sun gear. A reinforcing block is arranged between every two adjacent planet wheels, the two ends of each reinforcing block are fixed to the two planet fixing plates respectively, the two ends of each reinforcing block are both connected with a pressing plate, and the other end of each pressing plate is pressed on the sun wheel in a covering mode. The pressing plates are connected to the planet fixing plates on the two sides of the planet carrier, and the sun gear is clamped from the two sides through the pressing plates, so that fixation of the sun gear and the planet carrier in the axial direction is achieved, movement of the planet carrier is avoided, and operation stability is improved.

Description

Technical Field

[0001] This utility model relates to the field of planetary carrier technology, and more specifically, to a planetary carrier with an anti-movement structure. Background Technology

[0002] The planetary carrier is used to mount planetary gears and is one of the main components of a planetary gear transmission. It has a great influence on the load distribution between the planetary gears, as well as the load-bearing capacity, noise, and vibration of the transmission. Therefore, the stability of the planetary carrier in the transmission must be ensured during the design process.

[0003] Chinese utility model patent application number 202421017587.2 discloses a planet carrier limiting structure for a multi-stage planetary transmission device. A fixing bar is set between the planet carrier shaft and the sun gear shaft, which can radially limit the shaft and improve the smoothness of operation and reduce the occurrence of vibration. However, it cannot limit the axial displacement of the planet carrier. Especially in the application of helical gears, vibration and axial force during transmission will push the planet carrier to axially displace, thereby affecting the size of the transmission connection surface and ultimately affecting the transmission efficiency and stability. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a planetary carrier with an axial anti-movement structure.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A planetary carrier with an anti-slip structure includes a planetary carrier shaft, two planetary fixing plates fixed at intervals on the planetary carrier shaft, planetary gears installed between the two planetary fixing plates, a number of planetary gears meshing with a sun gear, a reinforcing block provided between two adjacent planetary gears, the two ends of the reinforcing block being fixed to the two planetary fixing plates respectively, and pressure plates connected to both ends of the reinforcing block, the other end of the pressure plate pressing against the sun gear.

[0007] The present invention is further configured such that: both ends of the reinforcing block are provided with sliding grooves, the pressure plate is slidably connected to the sliding grooves, a threaded hole is provided through the reinforcing block, and an adjusting screw is installed at both ends of the threaded hole, the adjusting screw being threadedly connected to the planetary fixing plate and the pressure plate on the corresponding side.

[0008] The present invention is further configured such that: a mounting groove is provided on the side of the reinforcing block away from the sun gear, the mounting groove is located outside the screw hole, the mounting groove is connected to the sliding grooves at both ends, the pressure plate extends above the mounting groove, a balance spring is provided in the mounting groove, and the two ends of the balance spring are respectively connected to the pressure plates on both sides.

[0009] The present invention is further configured such that: a pressure head is provided at one end of the pressure plate pointing towards the sun gear, the pressure head is concave, the groove of the pressure head is arc-shaped, and all pressure heads on the same side of the sun gear are engaged with a limit ring, the limit ring being slidably connected to the end face of the sun gear.

[0010] The present invention is further configured such that: a plurality of balls are rolledly mounted on the end face of the limiting ring facing the sun gear, and the balls are rolledly connected to the end face of the sun gear.

[0011] The advantages of this utility model are:

[0012] Pressure plates are installed at both ends of the reinforcing block of the planetary carrier. The pressure plates are fixed to the reinforcing block by adjusting screws. One end of the pressure plate points to the sun gear. All pressure plates on the same side are engaged with limit rings. By rotating the adjusting screws, the limit rings on both sides can be moved to the appropriate position to clamp the sun gear from both sides, thereby limiting the axial movement of the sun gear and the planetary carrier, preventing axial movement of the planetary carrier, reducing vibration, and improving the stability of the transmission mechanism. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of one embodiment of the present invention;

[0014] Figure 2 For along Figure 1 The cross-sectional view along line AA is shown below;

[0015] Figure 3 for Figure 2 The enlarged view of part B shown;

[0016] Figure 4 This is a schematic diagram of the limiting mechanism structure of this utility model;

[0017] In the diagram: 1. Sun gear; 2. Planetary mounting plate; 3. Planetary carrier shaft; 4. Reinforcing block; 41. Slide groove; 42. Screw hole; 43. Mounting slot; 5. Adjusting screw; 6. Pressure plate; 61. Pressure head; 7. Limiting ring; 8. Ball bearing; 9. Balance spring. Detailed Implementation

[0018] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0020] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0021] Please see Figure 1-4 The present invention provides the following technical solution:

[0022] A planetary carrier with an anti-slip structure includes a planetary carrier shaft 3. Two planetary fixing plates 2 are fixed at intervals on the planetary carrier shaft 3. The two planetary fixing plates 2 are used to install planetary gears. The planetary gears are arranged between the two planetary fixing plates 2. Several planetary gears mesh with a sun gear 1, that is, the sun gear 1 is located in the middle position of the two planetary fixing plates 2. A reinforcing block 4 is arranged between two adjacent planetary gears. The two ends of the reinforcing block 4 are respectively fixed to the two planetary fixing plates 2. The reinforcing block 4 improves the strength of the planetary fixing plates 2 and increases its load-bearing capacity.

[0023] Both ends of the reinforcing block 4 are provided with sliding grooves 41, and pressure plates 6 are slidably connected in the sliding grooves 41. A screw hole 42 is provided through the reinforcing block 4. An adjusting screw 5 is installed at both ends of the screw 42. The adjusting screw 5 is threadedly connected to the planetary fixing plate 2 and the pressure plate 6 on the corresponding side. By rotating the adjusting screw 5, the relative position of the pressure plate 6 and the planetary fixing plate 2 can be adjusted.

[0024] One end of the pressure plate 6 points towards the sun gear 1 and is provided with a pressure head 61. The pressure head 61 is concave and the groove of the pressure head 61 is arc-shaped. All pressure heads 61 on the same side of the sun gear 1 are connected to a limit ring 7. The limit ring 7 is slidably connected to the end face of the sun gear 1. The limit rings 7 on both sides clamp the sun gear 1 together, so that the sun gear 1 and the planet carrier are relatively fixed in position and axial movement is avoided.

[0025] A number of balls 8 are rolled on the end face of the limiting ring 7 facing the sun gear 1. The balls 8 are rolled and connected to the end face of the sun gear 1, which reduces the friction between the limiting ring 7 and the end face of the sun gear 1 and reduces energy loss.

[0026] Furthermore, the reinforcing block 4 has a mounting groove 43 on the side away from the sun gear 1. The mounting groove 43 is located outside the screw hole 42 and is connected to the sliding grooves 41 at both ends. The pressure plate 6 extends above the mounting groove 43. A balance spring 9 is installed in the mounting groove 43. The two ends of the balance spring 9 are connected to the pressure plates 6 on both sides respectively. Under normal conditions, the balance spring 9 is in a compressed state and always pushes the pressure plates 6 at both ends outward, thereby balancing the reaction force of the sun gear 1 on the inner end of the pressure plate 6, promoting the force balance of the pressure plate 6 on both sides of the adjusting screw 5 and reducing the wear of the threads.

[0027] Specifically, pressure plates 6 are provided at both ends of the reinforcing block 4 of the planetary carrier. The pressure plates 6 are fixed to the reinforcing block 4 by adjusting screws 5. One end of the pressure plate 6 points to the sun gear 1. Limiting rings 7 are engaged on all the pressure plates 6 on the same side. By rotating the adjusting screws 5, the limiting rings 7 on both sides can be adjusted to move to a suitable position to clamp the sun gear 1 from both sides, thereby limiting the axial movement of the sun gear 1 and the planetary carrier, preventing the planetary carrier from moving axially, reducing vibration, and improving the stability of the transmission mechanism.

[0028] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0029] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0030] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar counterparts and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0031] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A planetary carrier with an anti-movement structure, comprising a planetary carrier shaft (3), characterized in that: Two planetary mounting plates (2) are fixed at intervals on the planetary carrier shaft (3). Planetary gears are installed between the two planetary mounting plates (2). Several planetary gears mesh with a sun gear (1). A reinforcing block (4) is provided between two adjacent planetary gears. The two ends of the reinforcing block (4) are fixed on the two planetary mounting plates (2) respectively. Both ends of the reinforcing block (4) are connected to a pressure plate (6). The other end of the pressure plate (6) presses down on the sun gear (1).

2. A planetary carrier with an anti-movement structure according to claim 1, characterized in that: The reinforcing block (4) has a sliding groove (41) at both ends. The pressure plate (6) is slidably connected to the sliding groove (41). The reinforcing block (4) has a through screw hole (42). The screw hole (42) has an adjusting screw (5) at both ends. The adjusting screw (5) is threadedly connected to the planetary fixing plate (2) and the pressure plate (6) on the corresponding side.

3. A planetary carrier with an anti-movement structure according to claim 2, characterized in that: The reinforcing block (4) has an installation groove (43) on the side away from the sun gear (1). The installation groove (43) is located outside the screw hole (42). The installation groove (43) is connected to the sliding grooves (41) at both ends. The pressure plate (6) extends above the installation groove (43). A balance spring (9) is provided in the installation groove (43). The two ends of the balance spring (9) are connected to the pressure plates (6) on both sides respectively.

4. A planetary carrier with an anti-movement structure according to claim 1, characterized in that: The pressure plate (6) is provided with a pressure head (61) at one end pointing to the sun gear (1). The pressure head (61) is concave and the groove of the pressure head (61) is arc-shaped. All pressure heads (61) on the same side of the sun gear (1) are connected to a limiting ring (7). The limiting ring (7) is slidably connected to the end face of the sun gear (1).

5. A planetary carrier with an anti-movement structure according to claim 4, characterized in that: The limiting ring (7) has several balls (8) rolled on the end face of the sun gear (1) facing the sun gear (1), and the balls (8) are rolled to the end face of the sun gear (1).

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