Inner cavity type planet carrier with long service life

Abstract

The utility model discloses a long-life inner cavity type planet carrier which comprises a planet carrier body, a plurality of limiting grooves are formed in the top end of the inner wall of the planet carrier body at equal intervals, limiting blocks are connected in the limiting grooves in a sliding mode, gears are connected to the inner wall of the planet carrier body in a sliding mode, and sliding grooves are formed in the lower ends of the limiting blocks. An adjusting block is slidably connected to the bottom of the limiting groove, a clamping block is fixedly connected to the upper end of the adjusting block, an adjusting screw hole is formed in the middle of one end of the adjusting block, a plurality of adjusting screws are arranged at the outer side end of the planet carrier body at equal intervals, and a fixing cover is arranged at the upper end of the planet carrier body; the outer side end of the planet carrier body is in threaded connection with the inner wall of the fixing cover, and a channel with the same outer diameter as a gear is formed in the middle of the fixing cover. The clamping block applies thrust to the limiting block in the direction away from the gear through rotation of the adjusting screw rod, the friction force between the side wall of the limiting groove and the limiting block is increased, and gear shaking caused by loosening of the fixing cover is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of inner cavity type planet carriers, and specifically relates to a long - life inner cavity type planet carrier. Background Technique

[0002] The planet carrier is one of the main components of the planetary gear transmission device and is the part in the mechanism that bears the largest external torque.

[0003] Patent application number "CN202420253037.4", patent name "A long - life inner cavity type planet carrier". When the gear is damaged after the planet carrier has been used for a long time, first pinch the rotating plate and rotate it so that the second thread rotates on the surface of the first thread. When the rotating plate is completely separated from the fixed block, then pinch the fixing plate and lift it upward so that the fixing plate drives the gear out of the inside of the fixed block. At this time, the fixing plate can be replaced. Align the replaced fixing plate with the fixed block for installation, and then rotate the rotating plate to the surface of the fixed block. Thus, it can be avoided that the gear inside the fixed block of the planet carrier is damaged after long - term use, resulting in the planet carrier being unable to continue to be used and the need to replace the whole, which increases the cost.

[0004] However, during the use process, if the rotating plate is reversed due to vibration and there is a gap between the rotating plate and the planet carrier, the clamping plate will slide up and down in the card slot and drive the gear to slide, resulting in uneven force on the gear when the planet carrier works, thus causing gear damage. Content of the Utility Model

[0005] The purpose of the utility model is to provide a long - life inner cavity type planet carrier, which can further fix the gear, strengthen the connection effect between the gear and the planet carrier, and avoid the gear from shaking due to the influence of vibration, resulting in uneven force on the gear when the planet carrier works, thus causing gear damage.

[0006] To achieve the above object, a long-life inner cavity type planet carrier is provided, including a planet carrier main body. A number of limiting grooves are equidistantly arranged at the top end of the inner wall of the planet carrier main body. A limiting block is slidably connected in the limiting groove. A gear is slidably connected to the inner wall of the planet carrier main body and is located at the upper end of the planet carrier main body. A number of the limiting blocks are respectively fixedly connected to the outer side ends of the gear. A chute is arranged at the lower end of the limiting block and is on the same side as the gear. An adjusting block is slidably connected to the bottom of the limiting groove, and the upper end of the adjusting block is slidably connected to the bottom of the limiting block. A clamping block is fixedly connected to the upper end of the adjusting block, and the clamping block is located in the chute and is slidably connected to the inner wall of the chute. A central part of one end of the adjusting block is provided with an adjusting screw hole, and the adjusting screw hole is far away from the chute. A number of adjusting screws are equidistantly arranged at the outer side end of the planet carrier main body, and one end of the adjusting screw penetrates through the planet carrier main body and is rotatably connected to the planet carrier main body. One end of the adjusting screw extends into the adjusting screw hole through the planet carrier main body and is threadedly connected to the adjusting screw hole. A fixing cover is arranged at the upper end of the planet carrier main body, and the upper end of the planet carrier main body extends into the fixing cover. The outer side end of the planet carrier main body is threadedly connected to the inner wall of the fixing cover. A channel with the same outer diameter as the gear is opened in the middle of the fixing cover. It can further fix the gear, strengthen the connection effect between the gear and the planet carrier, avoid the gear from shaking due to vibration, resulting in uneven force on the gear when the planet carrier works, and thus cause gear damage.

[0007] According to the long-life inner cavity type planet carrier described above, two fixing bolts are arranged at the end of the limiting block far away from the gear, and one end of the fixing bolt penetrates through the limiting block and extends into the gear, and the fixing bolt is threadedly connected to the gear. It is used to combine the limiting block and the gear, which is convenient for replacing the gear separately when it is damaged and reduces the use cost.

[0008] According to the long-life inner cavity type planet carrier described above, a countersunk hole is arranged on the side of the limiting block far away from the gear, and the head of the fixing bolt is located in the countersunk hole. It avoids the appearance of protrusions on the surface of the limiting block and ensures the sliding effect of the limiting block in the limiting groove.

[0009] According to the long-life inner cavity type planet carrier described above, the heads of the fixing bolts and the adjusting screws are provided with hexagonal sockets. It is convenient for the staff to rotate the fixing bolts and the adjusting screws with a hexagonal wrench, making the structure of the planet carrier compact.

[0010] According to the long-life inner cavity type planet carrier described above, a countersunk hole is arranged at the outer side end of the planet carrier main body, and the head of the adjusting screw is located in the countersunk hole. It is used to avoid the appearance of protrusions on the surface of the planet carrier main body, which affects the rotation of the fixing cover.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows: By rotating the adjusting screw rod, the clamping block applies a thrust to the limiting block in a direction away from the gear, increasing the friction force between the side wall of the limiting groove and the limiting block, avoiding loosening of the fixed cover, resulting in shaking of the gear, uneven force on the gear, and thus causing damage to the gear.

[0012] Additional aspects and advantages of the utility model will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The following further illustrates the utility model in conjunction with the drawings and embodiments;

[0014] Figure 1 is a perspective view of a long-life inner cavity type planetary carrier of the utility model;

[0015] Figure 2 is a cross-sectional view of a long-life inner cavity type planetary carrier of the utility model with the fixed cover removed;

[0016] Figure 3 is a mating diagram of the gear and the limiting block of a long-life inner cavity type planetary carrier of the utility model;

[0017] Figure 4 is Figure 2 an enlarged view of part A in

[0018] In the figure: 1. Fixed cover; 2. Planetary carrier main body; 3. Gear; 4. Limiting groove; 5. Fixed bolt; 6. Limiting block; 7. Sliding groove; 8. Clamping block; 9. Adjusting block; 10. Adjusting screw hole; 11. Adjusting screw rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the utility model 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 the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the utility model.

[0020] Please refer to Figures 1-4, the present utility model provides a technical solution: a long - life inner - cavity type planet carrier, which includes a planet carrier main body 2. A number of limiting grooves 4 are equidistantly arranged at the top end of the inner wall of the planet carrier main body 2. A limiting block 6 is slidably connected in the limiting groove 4. A gear 3 is slidably connected to the inner wall of the planet carrier main body 2, and the gear 3 is located at the upper end of the planet carrier main body 2. A number of limiting blocks 6 are respectively fixedly connected to the outer side ends of the gear 3. At one end of the limiting block 6 away from the gear 3, there are two fixing bolts 5, and one end of the fixing bolt 5 penetrates through the limiting block 6 and extends into the gear 3. The fixing bolt 5 is threadedly connected to the gear 3, which is used to combine the limiting block 6 and the gear 3, facilitating the replacement of the gear 3 alone when it is damaged and reducing the use cost. On the side of the limiting block 6 away from the gear 3, there is a countersunk hole, and the head of the fixing bolt 5 is located in the countersunk hole, avoiding the protrusion on the surface of the limiting block 6 and ensuring the sliding effect of the limiting block 6 in the limiting groove 4. At the lower end of the limiting block 6, there is a sliding groove 7, and the sliding groove 7 is on the same side as the gear 3. An adjusting block 9 is slidably connected to the bottom of the limiting groove 4, and the upper end of the adjusting block 9 is slidably connected to the bottom of the limiting block 6. A clamping block 8 is fixedly connected to the upper end of the adjusting block 9, and the clamping block 8 is located in the sliding groove 7 and is slidably connected to the inner wall of the sliding groove 7. In the middle of one end of the adjusting block 9, there is an adjusting screw hole 10, and the adjusting screw hole 10 is away from the sliding groove 7. A number of adjusting screw rods 11 are equidistantly arranged at the outer side end of the planet carrier main body 2, and one end of the adjusting screw rod 11 penetrates through the planet carrier main body 2 and is rotatably connected to the planet carrier main body 2. One end of the adjusting screw rod 11 extends into the adjusting screw hole 10 through the planet carrier main body 2 and is threadedly connected to the adjusting screw hole 10. At the outer side end of the planet carrier main body 2, there is a countersunk hole, and the head of the adjusting screw rod 11 is located in the countersunk hole, which is used to avoid the protrusion on the surface of the planet carrier main body 2 and affect the rotation of the fixing cover 1. The heads of the fixing bolts 5 and the adjusting screw rods 11 are provided with internal hexagonal grooves, which is convenient for the staff to use a hexagonal wrench to rotate the fixing bolts 5 and the adjusting screw rods 11, making the structure of the planet carrier compact. At the upper end of the planet carrier main body 2, there is a fixing cover 1, and the upper end of the planet carrier main body 2 extends into the fixing cover 1. The outer side end of the planet carrier main body 2 is threadedly connected to the inner wall of the fixing cover 1. A channel with the same outer diameter as the gear 3 is opened in the middle of the fixing cover 1.

[0021] Working principle: When in use, the limiting block 6 is attached to the surface of the gear 3, and the limiting block 6 and the gear 3 are fixedly connected through the fixing bolt 5. Then the gear 3 with the limiting block 6 is placed into the planet carrier main body 2 from above the planet carrier main body 2. The clamping block 8 enters the sliding groove 7. Then, by rotating the adjusting screw rod 11, the adjusting block 9 drives the clamping block 8 to apply a thrust to the limiting block 6 in the direction away from the gear 3, and cooperates with the side wall of the limiting groove 4 to clamp the clamping block 8. Finally, the fixing cover 1 is rotatably installed on the top of the planet carrier main body 2 to fix the limiting block 6 and block the adjusting screw rod 11.

[0022] The embodiments of the present utility model have been described in detail above in conjunction with the accompanying drawings. However, the present utility model is not limited to the above embodiments, and various changes can be made without departing from the gist of the present utility model within the scope of knowledge possessed by those of ordinary skill in the relevant art.

Claims

1. A long-life inner cavity type planet carrier, comprising a planet carrier main body (2), characterized in that, The inner wall top of the planet carrier body (2) is equidistantly provided with a number of limiting grooves (4). A limiting block (6) is slidably connected in the limiting groove (4). A gear (3) is slidably connected to the inner wall of the planet carrier body (2), and the gear (3) is located at the upper end of the planet carrier body (2). A number of the limiting blocks (6) are respectively fixedly connected to the outer side ends of the gear (3). A chute (7) is provided at the lower end of the limiting block (6), and the chute (7) is on the same side as the gear (3). An adjusting block (9) is slidably connected to the bottom of the limiting groove (4), and the upper end of the adjusting block (9) is slidably connected to the bottom of the limiting block (6). A clamping block (8) is fixedly connected to the upper end of the adjusting block (9), and the clamping block (8) is located in the chute (7) and is slidably connected to the inner wall of the chute (7). A middle part of one end of the adjusting block (9) is provided with an adjusting screw hole (10), and the adjusting screw hole (10) is far from the chute (7). A number of adjusting screw rods (11) are equidistantly provided at the outer side end of the planet carrier body (2), and one end of the adjusting screw rod (11) penetrates through the planet carrier body (2) and is rotatably connected to the planet carrier body (2). One end of the adjusting screw rod (11) extends into the adjusting screw hole (10) through the planet carrier body (2) and is threadedly connected to the adjusting screw hole (10). A fixing cover (1) is provided at the upper end of the planet carrier body (2), and the upper end of the planet carrier body (2) extends into the fixing cover (1). The outer side end of the planet carrier body (2) is threadedly connected to the inner wall of the fixing cover (1). A channel having the same outer diameter as the gear (3) is opened in the middle of the fixing cover (1).

2. The long-life inner cavity type planet carrier according to claim 1, wherein: Two fixing bolts (5) are provided at one end of the limiting block (6) far from the gear (3), and one end of the fixing bolt (5) penetrates through the limiting block (6) and extends into the gear (3). The fixing bolt (5) is threadedly connected to the gear (3).

3. The long-life inner cavity type planet carrier according to claim 2, characterized in that: A counterbore is provided on one side of the limiting block (6) far from the gear (3), and the head of the fixing bolt (5) is located in the counterbore.

4. A long-life inner cavity type planet carrier according to claim 2, characterized in that: The heads of the fixing bolt (5) and the adjusting screw rod (11) are provided with internal hexagonal grooves.

5. A long-life inner cavity type planetary carrier as claimed in claim 1, characterized in that: A counterbore is provided at the outer side end of the planet carrier body (2), and the head of the adjusting screw rod (11) is located in the counterbore.

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