Planet wheel bearing clamping structure of planet row

Abstract

The utility model discloses a planet gear bearing clamping structure of a planet row, which comprises a gear ring, three planet gears are uniformly arranged in the gear ring, a shaft rod is arranged at the top of each planet gear, a fixing plate is arranged at the top of each shaft rod, a screw rod is arranged at the center of the top of each fixing plate, and a screw rod is arranged at the center of the top of each screw rod. According to the utility model, the screw rods are arranged at the top of the planetary gear, after the planetary gear is arranged at the inner side of the gear ring, the three through holes II in the positioning frame are respectively sleeved on the screw rods at the tops of the three fixing plates, and then the screw rods are screwed tightly through the screw caps when the positioning frame is used for positioning, so that the planetary gear is fixed on the inner side of the gear ring, and the positioning plate is arranged on the outer ring surface of the bottom of the shaft rod. At the moment, the positions of the three planetary gears are fixed together through the positioning frame, the positions of the planetary gears are fixed through supporting force of the positioning frame and mutual supporting force among the three planetary gears, stable operation of the planetary gears is guaranteed, and therefore the service life of the planetary gears is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of planetary gears, in particular to a planetary wheel bearing clamping structure of a planetary gear row. Background Art

[0002] Planetary gears are a special gear system, which is characterized by the fact that its axis of rotation is not fixed, but is installed on a rotatable bracket. In addition to being able to rotate around its own axis like a fixed-axis gear, its axis of rotation will also rotate around the axes of other gears with the planetary carrier. This rotation around its own axis is called "rotation", and rotation around the axes of other gears is called "revolution", which is similar to the movement of planets in the solar system, hence the name planetary gears.

[0003] Currently, for the structure of planetary gears, there is a lack of positioning structure between the ring gear, sun gear and planetary gears. During long-term operation, the position of a certain gear may change, making the entire structure unstable and affecting the service life of the planetary gear.

[0004] Therefore, a planetary gear bearing locking structure of a planetary gear train is proposed to solve the above problems. Summary of the invention

[0005] 1. Technical problems to be solved by the utility model

[0006] In view of the deficiencies in the prior art, the purpose of the present utility model is to provide a planetary gear bearing locking structure for a planetary gear train, aiming to solve the problem that under the prior art, during long-term operation, the position of a certain gear may change, making the entire structure unstable and affecting the service life of the planetary gear.

[0007] 2. Technical solution

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] A planetary wheel bearing clamping structure of a planetary row comprises a gear ring, three planetary gears are evenly installed inside the gear ring, a shaft rod is installed on the top of the planetary gear, a fixing plate is installed on the top of the shaft rod, a screw is installed at the top center of the fixing plate, a positioning plate is installed on the bottom outer ring surface of the shaft rod, a shaft sleeve is rotatably installed on the outer ring surface of the shaft rod at a position between the bottom of the fixing plate and the top of the positioning plate, the planetary gear fixing sleeve is arranged on the outer ring surface of the shaft sleeve, a positioning frame is installed on the top of the fixing plate, two through holes are opened at the top three ends of the positioning frame, the two through holes are sleeved on the outer ring surface of the screw and the sizes are exactly matched.

[0010] As a preferred solution of the utility model, three axial holes are evenly opened on the inner bottom of the gear ring, and three through holes are evenly opened on the inner bottom of the gear ring at the edges of the three axial holes.

[0011] As a preferred solution of the utility model, one end of the shaft rod extends through the shaft hole to the outside of the gear ring, and the fixing plate is attached to the inner bottom of the gear ring, and the bottom of the gear ring is threadedly connected to the bottom of the fixing plate by bolts passing through through hole 1. As a preferred solution of the utility model, the length dimension of the shaft sleeve is the same as the thickness dimension of the planetary gear, and there is a certain gap between the top of the planetary gear and the bottom of the fixing plate.

[0012] As a preferred solution of the utility model, there is a certain gap between the bottom of the planetary gear and the top of the positioning plate, and the bottom of the positioning plate is provided with three threaded holes whose edges respectively coincide with one edge of the three through holes.

[0013] As a preferred solution of the utility model, a locating bearing is embedded in the top center of the locating frame, and after the locating frame is installed, the inner ring of the locating bearing is just sleeved and clamped on the outer ring surface of the rotating shaft of the sun gear.

[0014] 3. Beneficial effects

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model installs a screw rod on the top of the planetary gear, installs the planetary gear on the inner side of the gear ring, and then respectively sleeves the three through holes on the positioning frame on the screw rods on the tops of the three fixing plates, and then tightens the screw rods through nuts in the positioning of the positioning frame. At this time, the positions of the three planetary gears are fixed together through the positioning frame, and the positions of the planetary gears are fixed by the supporting force of the positioning frame and the mutual supporting force between the three planetary gears, thereby ensuring the stable operation of the planetary gears and improving the service life of the planetary gears. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of a planetary gear bearing clamping structure of a planetary gear set according to the utility model;

[0018] Figure 2 This is a schematic diagram of a positioning frame structure of a planetary gear bearing clamping structure of a planetary gear set according to the utility model;

[0019] Figure 3 It is a schematic diagram of the gear ring structure of the planetary wheel bearing clamping structure of a planetary gear set of the utility model;

[0020] Figure 4 This is a schematic diagram of a planetary gear structure of a planetary gear bearing clamping structure of a planetary gear row of the utility model;

[0021] Figure 5 The utility model is a schematic diagram of the structure of the shaft rod and its connecting components of the planetary wheel bearing clamping structure of the planetary gear.

[0022] In the figure: 1, ring gear; 101, shaft hole; 102, through hole one; 2, planetary gear; 3, shaft rod; 4, fixing plate; 5, screw rod; 6, bushing; 7, positioning plate; 8, positioning frame; 81, through hole two; 9, positioning bearing. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0024] Example:

[0025] See also Figure 1-5 The present embodiment provides a planetary gear bearing clamping structure of a planetary row, including a gear ring 1, three planetary gears 2 are evenly installed inside the gear ring 1, a shaft rod 3 is installed on the top of the planetary gear 2, a fixing plate 4 is installed on the top of the shaft rod 3, a screw rod 5 is installed at the top center of the fixing plate 4, a positioning plate 7 is installed on the bottom outer ring surface of the shaft rod 3, a shaft sleeve 6 is rotatably installed on the outer ring surface of the shaft rod 3 at a position between the bottom of the fixing plate 4 and the top of the positioning plate 7, the planetary gear 2 fixing sleeve is arranged on the outer ring surface of the shaft sleeve 6, a positioning frame 8 is installed on the top of the fixing plate 4, and the top three ends of the positioning frame 8 are A second through hole 81 is provided, and the second through hole 81 is sleeved on the outer ring surface of the screw 5 and the size is just matched. After the planetary gear 2 is installed on the inner side of the ring gear 1, the three second through holes 81 on the positioning frame 8 are respectively sleeved on the screws 5 on the top of the three fixing plates 4, and then the positioning frame 8 is positioned by tightening the screw 5 with the nut. At this time, the positions of the three planetary gears 2 are fixed together by the positioning frame 8, and the support force of the positioning frame 8 and the mutual support force between the three planetary gears 2 fix the position of the planetary gear 2, thereby ensuring the stable operation of the planetary gear 2 and improving the service life of the planetary gear 2.

[0026] In this embodiment, if Figure 3 and Figure 5 As shown, one end of the shaft rod 3 extends through the shaft hole 101 to the outside of the ring gear 1, and the fixing plate 4 is fitted to the inner bottom of the ring gear 1. The bottom of the ring gear 1 is threadedly connected to the bottom of the fixing plate 4 by bolts passing through the through hole 102, thereby further fixing the position of the shaft rod 3 and improving the operating stability of the planetary gear 2.

[0027] In this embodiment, if Figure 1 , Figure 4 and Figure 5 As shown, the length of the sleeve 6 is the same as the thickness of the planetary gear 2 , and there is a certain gap between the top of the planetary gear 2 and the bottom of the fixing plate 4 , so that the bottom of the fixing plate 4 will not squeeze the top of the planetary gear 2 .

[0028] In this embodiment, if Figure 1 and Figure 2 As shown, a locating bearing 9 is embedded in the top center of the locating frame 8, and after the locating frame 8 is installed, the inner ring of the locating bearing 9 is just mounted on the outer ring surface of the rotating shaft of the sun gear, thereby stabilizing the position of the sun gear and improving the stability of the overall structure.

[0029] Working principle: When the planetary gear is running, one end of the shaft rod 3 is extended through the shaft hole 101 to the outside of the gear ring 1, and the fixing plate 4 is attached to the inner bottom of the gear ring 1. The bottom of the gear ring 1 is threadedly connected to the bottom of the fixing plate 4 through the through hole 1 102 by bolts, and then the three through holes 2 81 on the positioning frame 8 are respectively sleeved on the screws 5 on the top of the three fixing plates 4, and then the positioning frame 8 is positioned by tightening the nuts and screws 5. At this time, the positions of the three planetary gears 2 are fixed together by the positioning frame 8, and the support force of the positioning frame 8 and the mutual support force between the three planetary gears 2 fix the position of the planetary gear 2, ensuring the stable operation of the planetary gear 2, thereby improving the service life of the planetary gear 2, and the top center of the positioning frame 8 is embedded with a positioning bearing 9, and after the positioning frame 8 is installed, the inner ring of the positioning bearing 9 is just sleeved and clamped on the outer ring surface of the rotating shaft of the sun gear. Thereby, the position of the sun gear can be stabilized and the stability of the overall structure can be improved.

[0030] All technical features in this embodiment can be freely combined according to actual needs.

[0031] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the protection scope of the present invention.

Claims

1. A planetary gear bearing retaining structure of a planetary gear train, comprising a ring gear (1), characterized in that: Three planetary gears (2) are evenly mounted inside the gear ring (1); a shaft (3) is mounted on the top of the planetary gear (2); a fixing plate (4) is mounted on the top of the shaft (3); a screw (5) is mounted at the center of the top of the fixing plate (4); a positioning plate (7) is mounted on the outer annular surface of the bottom of the shaft (3); a shaft sleeve (6) is rotatably mounted on the outer annular surface of the shaft (3) at a position between the bottom of the fixing plate (4) and the top of the positioning plate (7); the planetary gear (2) is fixedly sleeved on the outer annular surface of the shaft sleeve (6); a positioning frame (8) is mounted on the top of the fixing plate (4); three ends of the top of the positioning frame (8) are each provided with a second through hole (81); the second through hole (81) is sleeved on the outer annular surface of the screw (5) and the size of the second through hole (81) is exactly matched.

2. The planetary gear bearing locking structure of a planetary gear set according to claim 1, characterized in that: The inner bottom of the gear ring (1) is evenly provided with three shaft holes (101), and the inner bottom of the gear ring (1) is evenly provided with three through holes (102) at the edges of the three shaft holes (101).

3. The planetary gear bearing locking structure of a planetary gear set according to claim 1, characterized in that: One end of the shaft rod (3) passes through the shaft hole (101) and extends to the outside of the gear ring (1), and the fixing plate (4) is fitted on the inner bottom of the gear ring (1). The bottom of the gear ring (1) is threadedly connected to the bottom of the fixing plate (4) via bolts passing through through hole 1 (102).

4. The planetary gear bearing locking structure of a planetary gear set according to claim 1, characterized in that: The length dimension of the shaft sleeve (6) is the same as the thickness dimension of the planetary gear (2), and there is a certain gap between the top of the planetary gear (2) and the bottom of the fixing plate (4).

5. The planetary gear bearing locking structure of a planetary gear set according to claim 1, characterized in that: There is a certain gap between the bottom of the planetary gear (2) and the top of the positioning plate (7), and the bottom of the positioning plate (7) is provided with three threaded holes whose edges respectively coincide with the edges of the three through holes (102).

6. The planetary gear bearing locking structure of a planetary gear set according to claim 1, characterized in that: A locating bearing (9) is embedded and installed at the top center of the locating frame (8), and after the locating frame (8) is installed, the inner ring of the locating bearing (9) is just sleeved and clamped on the outer ring surface of the rotating shaft of the sun gear.

Images