Planet carrier capable of preventing axial movement

Abstract

The utility model provides a planet carrier capable of preventing axial movement, and relates to the technical field of planetary transmission devices. The planet carrier capable of preventing axial movement comprises a first planet carrier plate and a second planet carrier plate, and a fixing structure is arranged between the first planet carrier plate and the second planet carrier plate. According to the planet carrier capable of preventing axial movement, by arranging a fixing structure, a rotary knob can be rotated, one first bevel gear is driven to rotate through a rotating shaft, then transmission is conducted through a second bevel gear and a third bevel gear, the four first bevel gears all rotate, and four pin shafts are driven to rotate at the same time so that a fixing clamping block and a fixing clamping base can be connected in a clamped mode; and during clamping connection, the limiting columns can move to circular clamping grooves formed in the second planet carrier plate, and then the limiting columns pop out through the circular clamping grooves under the elastic action of the reset springs to complete fixed installation of the first planet carrier plate and the second planet carrier plate, so that the device is easy and convenient to disassemble and assemble, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to a planet carrier, in particular to a planet carrier for preventing axial displacement, belonging to the technical field of planetary transmission devices. Background Technique

[0002] The planetary gear transmission device is a transmission device widely used in various mechanical equipment. The planet carrier is one of the main components of the planetary gear transmission device and is a complex-structured part. The function of the planet carrier is to connect the planetary gears and planetary pins and transmit power. In order to prevent the axial displacement of the planetary pins during operation, currently, the planet carrier usually adopts a welding method for fixation.

[0003] When the existing planet carrier is fixed, after being fixed according to the usual welding method, although it can prevent the axial displacement of the pins during operation, it will be difficult to disassemble and separate the planet carrier as a whole during the subsequent maintenance of the planetary gear transmission device, which is not convenient for the subsequent use of the staff, reducing the practicability of the device. Moreover, when fixing the planet carrier, the planetary pins need to be fixed separately and sequentially, and multiple operations are required during the fixation, which is rather troublesome to use, and the convenience of the device is not very good. Summary of the Invention

[0004] (I) Technical Problems to be Solved

[0005] The purpose of the utility model is to provide a planet carrier for preventing axial displacement to solve the above problems, so as to solve the problem that after being fixed according to the usual welding method in the prior art, it will be difficult to disassemble and separate the planet carrier as a whole during the subsequent maintenance of the planetary gear transmission device, which is not convenient for the subsequent use of the staff and reduces the practicability of the device.

[0006] (II) Technical Solutions

[0007] The utility model is realized through the following technical solutions: a planet carrier for preventing axial displacement, including a first planet carrier plate and a second planet carrier plate. A fixing structure is arranged between the first planet carrier plate and the second planet carrier plate. The fixing structure includes four fixing chucks and four pins. The four fixing chucks are all fixedly installed on one side of the second planet carrier plate. The four pins are all rotatably installed on one side of the first planet carrier plate. Fixing blocks are fixedly installed at positions near one end on the outer sides of the four pins. A fixing groove is opened at the middle position of the fixing chuck. The pins and the fixing blocks are adaptively matched with the fixing groove.

[0008] Preferably, two circular chutes are opened at the bottom of the fixed clamping block. Two reset springs are fixedly installed inside the fixed clamping block. One end of each of the two reset springs is fixedly installed with a limit post. The limit post is arranged inside the circular chute and is in sliding contact with the fixed clamping block. The provided circular chute can accommodate the limit post when the limit post is under pressure.

[0009] Preferably, eight circular card slots are opened on the second planetary carrier plate. The eight limit posts respectively match the eight circular card slots in size. The provided circular card slots can limit the structure by allowing the limit posts to enter the inside of the circular card slots through the reset springs when the limit posts move to the positions of the card slots.

[0010] Preferably, one end of each of the four pin shafts penetrates through the first planetary carrier plate and is fixedly installed with a first bevel gear. Four first fixed seats are fixedly installed on the top of the first planetary carrier plate. The four first fixed seats are grouped in pairs, and a first connecting shaft is rotatably installed between each pair of the first fixed seats.

[0011] Preferably, two second bevel gears are fixedly installed at both ends of the first connecting shaft respectively through the two first fixed seats. The four second bevel gears are respectively meshed and connected with the four first bevel gears.

[0012] Preferably, two second fixed seats are fixedly installed on one side of the first planetary carrier plate. A second connecting shaft is rotatably installed between the two second fixed seats. Two third bevel gears are fixedly installed at both ends of the second connecting shaft respectively through the two second fixed seats. The two third bevel gears are meshed and connected with two of the first bevel gears.

[0013] Preferably, a protective frame is fixedly installed on the top of the first planetary carrier plate. A rotating shaft is fixedly installed on the top of one of the first bevel gears. One end of the rotating shaft penetrates through the protective frame and is fixedly installed with a knob.

[0014] The present utility model provides a planetary carrier for preventing axial displacement, and the beneficial effects thereof are as follows:

[0015] For the planetary carrier for preventing axial displacement, by setting a fixing structure, the knob can be rotated to drive one of the first bevel gears to rotate through the rotating shaft, and then transmitted through the second bevel gears and the third bevel gears, so that all four first bevel gears rotate to drive the four pin shafts to rotate simultaneously to make the fixed clamping block and the fixed clamping seat be clamped. During the clamping, the limit posts will move to the circular card slots opened on the second planetary carrier plate, and then pop out through the circular card slots by the elastic action of the reset springs to complete the fixed installation of the first planetary carrier plate and the second planetary carrier plate, making the device simple and convenient to disassemble and assemble, and improving the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1Schematic diagram of the overall structure of the present utility model;

[0017] Figure 2 Partial cross-sectional view of the present utility model;

[0018] Figure 3 Cross-sectional view of the fixing structure of the present utility model;

[0019] Figure 4 For the present utility model Figure 3 Enlarged view of the structure of part A;

[0020] Figure 5 Schematic diagram of the separation of the fixing clamp and the pin shaft of the present utility model.

[0021]

Description of main component symbols

[0022] 1. First planetary carrier plate; 2. Second planetary carrier plate; 3. Fixing clamp; 4. Pin shaft; 5. Fixing block; 6. Return spring; 7. Limit post; 8. First bevel gear; 9. First fixing seat; 10. First connecting shaft; 11. Second bevel gear; 12. Second fixing seat; 13. Second connecting shaft; 14. Third bevel gear; 15. Protective frame; 16. Rotating shaft; 17. Knob. Specific implementation mode

[0023] The embodiment of the present utility model provides a planetary carrier for preventing axial displacement.

[0024] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , which includes a first planetary carrier plate 1 and a second planetary carrier plate 2. A fixing structure is provided between the first planetary carrier plate 1 and the second planetary carrier plate 2. The fixing structure includes four fixing clamps 3 and four pin shafts 4. The four fixing clamps 3 are all fixedly installed on one side of the second planetary carrier plate 2. The four pin shafts 4 are all rotatably installed on one side of the first planetary carrier plate 1. Fixing blocks 5 are fixedly installed at positions near one end on the outer sides of the four pin shafts 4. A fixing groove is provided at the middle position of the fixing clamp 3. The pin shaft 4 and the fixing block 5 are adaptively matched with the fixing groove.

[0025] In this embodiment, two circular chutes are provided at the bottom of the fixing block 5. Two return springs 6 are fixedly installed inside the fixing block 5. One end of each of the two return springs 6 is fixedly installed with a limit post 7. The limit post 7 is arranged inside the circular chute and is in sliding contact with the fixing block 5.

[0026] In this embodiment, eight circular grooves are provided on the second planetary carrier plate 2. The eight limit posts 7 respectively match the eight circular grooves in size.

[0027] In this embodiment, one end of each of the four pin shafts 4 penetrates through the first planetary carrier plate 1 and is fixedly installed with a first bevel gear 8. Four first fixed seats 9 are fixedly installed on the top of the first planetary carrier plate 1. The four first fixed seats 9 are grouped in pairs, and a first connecting shaft 10 is rotatably installed between each pair of the first fixed seats 9.

[0028] In this embodiment, both ends of the first connecting shaft 10 penetrate through the two first fixed seats 9 respectively and are fixedly installed with second bevel gears 11. The four second bevel gears 11 are respectively meshed and connected with the four first bevel gears 8.

[0029] In this embodiment, two second fixed seats 12 are fixedly installed on one side of the first planetary carrier plate 1. A second connecting shaft 13 is rotatably installed between the two second fixed seats 12. Both ends of the second connecting shaft 13 penetrate through the two second fixed seats 12 respectively and are fixedly installed with third bevel gears 14. The two third bevel gears 14 are meshed and connected with two of the first bevel gears 8.

[0030] In this embodiment, a protective frame 15 is fixedly installed on the top of the first planetary carrier plate 1. A rotating shaft 16 is fixedly installed on the top of one of the first bevel gears 8. One end of the rotating shaft 16 penetrates through the protective frame 15 and is fixedly installed with a knob 17.

[0031] It should be noted that the present utility model is a planetary carrier for preventing axial displacement. When in use, the four pin shafts 4 on one side of the first planetary carrier plate 1 are respectively inserted into the four fixed clamping seats 3 on one side of the second planetary carrier plate 2. After the insertion is completed, the knob 17 is rotated, and one of the first bevel gears 8 is driven to rotate through the rotating shaft 16, so as to drive one of the second bevel gears 11 to mesh and rotate. Then, the other second bevel gear 11 is driven to rotate through one of the first connecting shafts 10 to drive the second first bevel gear 8 to mesh and rotate. At this time, the second first bevel gear 8 will drive one of the third bevel gears 14 to mesh and rotate, and then the other third bevel gear 14 is driven to rotate through the second connecting shaft 13 to make the third first bevel gear 8 mesh and rotate, so as to drive one of the second bevel gears 11 on the other side to mesh and rotate. Then, the other second bevel gear 11 on the other side is driven to rotate through the other first connecting shaft 10 to drive the last first bevel gear 8 to mesh and rotate, so as to rotate the four pin shafts 4. As the four pin shafts 4 rotate, the four fixed blocks 5 will be driven to rotate accordingly. During the rotation, the fixed block 5 will make the fixed clamping seat 3 limit the fixed block 5 in the vertical direction through the fixed card slot of the fixed clamping seat 3. Then, when moving to a certain position, the limiting column 7 will move to the circular card slot opened on the second planetary carrier plate 2, and then pop out through the circular card slot under the elastic action of the return spring 6, so as to limit the fixed block 5 in the horizontal direction. At this time, the fixation among the first planetary carrier plate 1, the second planetary carrier plate 2 and the pin shaft 4 can be completed, preventing the pin shaft from axially moving out during use;

[0032] When it is necessary to separate and disassemble the first planetary carrier plate 1 and the second planetary carrier plate 2, press the limit post 7 to move the limit post 7 from the circular card slot of the second planetary carrier plate 2 to the circular sliding groove of the fixed block 5, release the horizontal limit of the fixed block 5, and then reverse the rotation of the knob 17 to reverse the rotation of the four pin shafts 4, so that the fixed block 5 can be removed from the fixed card slot of the fixed card seat 3 to complete the separation of the first planetary carrier plate 1 and the second planetary carrier plate 2.

[0033] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A planet carrier for preventing axial movement, comprising a first planet carrier plate (1) and a second planet carrier plate (2), characterized in that: A fixing structure is arranged between the first planet carrier plate (1) and the second planet carrier plate (2). The fixing structure includes four fixing chucks (3) and four pin shafts (4). The four fixing chucks (3) are all fixedly installed on one side of the second planet carrier plate (2). The four pin shafts (4) are all rotatably installed on one side of the first planet carrier plate (1). Fixing blocks (5) are fixedly installed at positions near one end on the outer sides of the four pin shafts (4). A fixing groove is formed in the middle position of the fixing chuck (3). The pin shaft (4) and the fixing block (5) are adaptively matched with the fixing groove.

2. The planet carrier for preventing axial movement according to claim 1, wherein: Two circular chutes are formed at the bottom of the fixing block (5). Two return springs (6) are fixedly installed inside the fixing block (5). One end of each of the two return springs (6) is fixedly installed with a limiting post (7). The limiting post (7) is arranged inside the circular chute and is in sliding contact with the fixing block (5).

3. A planet carrier for preventing axial movement according to claim 2, characterized in that: Eight circular grooves are formed in the second planet carrier plate (2). The eight limiting posts (7) respectively match the eight circular grooves in size.

4. A planet carrier for preventing axial movement, as claimed in claim 1, wherein: One end of each of the four pin shafts (4) penetrates through the first planet carrier plate (1) and is fixedly installed with a first bevel gear (8). Four first fixing seats (9) are fixedly installed on the top of the first planet carrier plate (1). The four first fixing seats (9) are grouped in pairs. A first connecting shaft (10) is rotatably installed between each pair of the first fixing seats (9).

5. A planet carrier for preventing axial displacement according to claim 4, characterized in that: Both ends of the first connecting shaft (10) penetrate through the two first fixing seats (9) and are fixedly installed with second bevel gears (11). The four second bevel gears (11) are respectively meshed and connected with the four first bevel gears (8).

6. A planet carrier for preventing axial displacement according to claim 4, characterized in that: Two second fixing seats (12) are fixedly installed on one side of the first planet carrier plate (1). A second connecting shaft (13) is rotatably installed between the two second fixing seats (12). Both ends of the second connecting shaft (13) penetrate through the two second fixing seats (12) and are fixedly installed with third bevel gears (14). The two third bevel gears (14) are meshed and connected with two of the first bevel gears (8).

7. A planet carrier for preventing axial displacement according to claim 4, characterized in that: A protective frame (15) is fixedly installed on the top of the first planet carrier plate (1). A rotating shaft (16) is fixedly installed on the top of one of the first bevel gears (8). One end of the rotating shaft (16) penetrates through the protective frame (15) and is fixedly installed with a knob (17).

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