Lightweight planetary carrier structure of planetary gearbox

Abstract

The invention provides a light-weight planet carrier structure of a planetary gear box, and relates to the technical field of wind power gear boxes. The conveniently-detached part is arranged in the holding part; the adjusting part is arranged in the convenient-to-disassemble part; the adjusting frame is rotatably connected to the transmission rod, so that the transmission rod is adjusted to be in butt joint with different groups of central control gears through the adjusting grooves under the action of threads in cooperation with the auxiliary block in the rotating process, and therefore normal operation of the generator is kept in a mutual replacement working mode; according to the planet carrier for the wind driven generator, the problem that for an existing planet carrier, due to the fact that a single planetary gear train is usually fixed, the whole wind driven generator needs to be shut down for a long time in the overhauling process, and the total power generation efficiency is reduced in the shut-down overhauling process is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of wind power gearboxes, and in particular to a lightweight planetary gearbox planet carrier structure. Background Art

[0002] A wind turbine is an electrical device that converts wind energy into mechanical work, which drives the rotor to rotate and ultimately outputs alternating current. A wind turbine gearbox is an important component of a wind turbine. Its main function is to transmit the power generated by the wind wheel under the action of wind to the generator and make it obtain a corresponding speed. The planetary carrier of the wind turbine gearbox is an essential component for fixing the planetary gears. The planetary gears are prone to wear after long-term use. In order to maintain the normal operation of the wind turbine, it is necessary to regularly inspect and repair the planetary gears inside the gearbox. However, as far as the current planetary carrier is concerned, it usually fixes a single set of planetary gear trains, resulting in the need to shut down the entire wind turbine for a long time during the maintenance process, which reduces the overall power generation efficiency after the shutdown and maintenance process. At the same time, during the maintenance process, the planetary gears are usually fixed inside the planetary carrier, resulting in the need to disassemble and repair the planetary gears during the maintenance process, making the maintenance process too cumbersome. Summary of the invention

[0003] In view of this, the present invention provides a lightweight planetary gearbox planetary carrier structure, which has a convenient disassembly part and an adjustment part. By providing a plug-in groove and a mounting groove on the mounting cylinder, it is convenient to plug the disassembly block and the external gear through the mounting groove, so as to facilitate its stability, so that the external gear can be disassembled by disassembly, so as to facilitate its maintenance when disassembling, and the locking block and the docking rod can be docked through the mounting groove, so that it is convenient to lock the mounting cylinder and the middle fixed ring, so as to facilitate its use, and by rotating the transmission rod on the connecting adjustment frame, it cooperates with the auxiliary block to adjust the transmission rod through the adjusting groove under the action of the thread during the rotation process to dock with different groups of central control gears, so as to maintain the normal operation of the generator in a mutually replacing working manner, so as to facilitate the maintenance of idle central control gears, so as to facilitate its use.

[0004] The present invention provides a planetary carrier structure of a lightweight planetary gearbox, specifically comprising: a retaining part, a convenient disassembly part, and an adjusting part; the characteristic is that the retaining part comprises: a middle solid ring and a docking groove; the middle solid ring adopts a circular ring structure, an inner wall of the middle solid ring is provided with a circular ring-shaped protrusion, and an outer wall of the middle solid ring is provided with a docking groove of a rectangular structure; the convenient disassembly part is arranged inside the retaining part, the installation cylinder of the convenient disassembly part is arranged between the middle solid ring and the upper pressure ring of the retaining part, the docking rod of the retaining part is inserted into the plug-in groove of the installation cylinder, the locking block of the retaining part is inserted into the plug-in groove, and the convenient disassembly part comprises: a disassembly block; the disassembly block adopts an arc block The disassembly block has an axial hole in the middle position, and a pull handle is provided on the outer wall of the disassembly block. The disassembly block requires two groups to be used in combination, and the disassembly block is inserted into the installation groove; the adjustment part is arranged inside the convenient disassembly part, and the transmission rod of the adjustment part is rotatably connected in the pressure plate of the convenient disassembly part. The central control gear of the adjustment part is connected with the external gear of the convenient disassembly part through the latch teeth, and the auxiliary block of the adjustment part is fixed to the top of the upper pressure ring by screws. The adjustment part includes: a docking ring and a regulating groove; the docking ring is a circular ring-shaped structure, the docking ring is fixed on the outside of the transmission rod, and a regulating groove with a circular ring through hole is opened on the docking ring, and a rectangular protrusion is provided in the regulating groove.

[0005] Optionally, the docking rod adopts a hexagonal prism structure, and two groups of bottom surfaces of the docking rod are respectively provided with cylindrical protrusions, and threaded rod-shaped protrusions are respectively provided on the two groups of cylindrical protrusions of the docking rod.

[0006] Optionally, the upper pressure ring is a circular ring structure with a countersunk hole provided on it. There are two groups of upper pressure rings in total, and the two groups of upper pressure rings are respectively arranged on the upper and lower sides of the middle solid ring; the locking block is a cylindrical structure with a hexagonal prism-shaped groove provided on it, and a threaded groove is provided on the locking block. The locking block is inserted into the upper pressure ring, and the locking block is connected to the docking rod through a thread.

[0007] Optionally, the installation tube adopts a cylindrical tube structure, and two groups of bottom surfaces of the installation tube are respectively provided with circular plug holes, and the installation tube is provided with a plug-in groove with a circular through-hole structure.

[0008] Optionally, the mounting groove is a rectangular through hole, and arc-shaped grooves are respectively connected to the upper and lower ends of the mounting groove, and the mounting groove is arranged on the outer wall of the mounting tube.

[0009] Optionally, the external gear is a columnar gear structure, a cylindrical protrusion is provided on the external gear, and the external gear is rotatably connected between the two sets of disassembly blocks; the pressure plate is a cylindrical tube structure, a ring-shaped protrusion is provided on the outer wall of the pressure plate, a cylindrical plug-in block is provided at the bottom of the ring-shaped protrusion on the outer wall of the pressure plate, an ring-shaped protrusion is provided on the inner wall of the pressure plate, and the pressure plate is plugged into the mounting tube through the cylindrical plug-in block.

[0010] Optionally, the transmission rod adopts a cylindrical structure, and an annular protrusion is provided on the outer wall of the transmission rod.

[0011] Optionally, the adjustment part also includes: a connecting groove; the central control gear is a columnar gear structure, a cylindrical protrusion is provided on the central control gear, a circular through hole is provided on the cylindrical protrusion of the central control gear, the central control gear is rotatably connected to the outer wall of the transmission rod, and the circular through hole of the central control gear is connected to a rectangular groove-shaped connecting groove.

[0012] Optionally, the adjustment part also includes: an adjustment frame and an auxiliary block; the adjustment frame is a threaded rod structure, the adjustment frame is provided with a turning handle, the adjustment frame is provided with a circular through hole, and the adjustment frame is rotatably connected to the outer wall of the transmission rod; the auxiliary block is a cylindrical structure, the auxiliary block is provided with a threaded through hole, the outer wall of the auxiliary block is provided with a circular protrusion, the circular protrusion of the auxiliary block is provided with a rectangular protrusion, and the middle position of the auxiliary block is threadedly connected with the adjustment frame.

[0013] The lightweight planetary gearbox planet carrier structure provided by the present invention has the following beneficial effects: According to the planetary carrier structure of each embodiment of the present invention, compared with the traditional planetary carrier, it is possible to tighten the two sets of mounting tubes under the docking rod and the locking block by setting multiple upper pressure rings, thereby facilitating disassembly while maintaining the tightness of the planetary carrier structure.

[0014] In addition, two sets of convenient unloading parts and central control gears are provided, so that the two sets of convenient unloading parts and central control gears can be interchanged for operation, thereby facilitating the normal operation of the generator and overhauling the idle convenient unloading parts and hollow gears.

[0015] In addition, a plug-in groove is provided on the mounting tube to facilitate the disassembly of the disassembly block and the external gear, thereby facilitating the inspection and repair of the corresponding convenient disassembly part and the central control gear, while the external gear remains stable under the action of the central control gear and the external transmission structure, making it convenient for the normal use of the gearbox.

[0016] In addition, the adjustment frame is rotatably connected to the transmission rod, so that the transmission rod can be adjusted downward by the auxiliary block through the thread without affecting the transmission rod, so that the transmission rod can be connected with different groups of central control gears through the adjustment groove, thereby facilitating the replacement of the running central control gears and the inspection and treatment of the idle central control gears and the disassembly block, making it easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0018] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0019] In the attached picture: Figure 1 A schematic diagram showing a three-dimensional structure according to an embodiment of the present invention; Figure 2 A schematic diagram showing a three-dimensional bottom-up structure according to an embodiment of the present invention is shown; Figure 3 A schematic diagram showing a decomposition structure according to an embodiment of the present invention is shown; Figure 4 A schematic diagram showing an exploded bottom-up structure according to an embodiment of the present invention is shown; Figure 5 A schematic diagram showing a partial cutaway structure according to an embodiment of the present invention is shown; Figure 6 The embodiment according to the present invention is shown. Figure 5 The schematic diagram of the enlarged structure of part A is shown; Figure 7 The embodiment according to the present invention is shown. Figure 5 The schematic diagram of the enlarged structure of part B is shown; Figure 8 A schematic diagram showing an assembly structure of a holding portion according to an embodiment of the present invention is shown; Fig. 9 A schematic diagram showing an assembly structure of a convenient disassembly part according to an embodiment of the present invention is shown; Fig.10 A schematic diagram showing an assembly structure of an adjustment part according to an embodiment of the present invention is shown; Fig.11 A schematic diagram showing an assembly structure of a convenient disassembly portion and an adjustment portion according to an embodiment of the present invention; Fig.12 The embodiment according to the present invention is shown. Fig.11 Schematic diagram of the enlarged structure of part C.

[0020] Reference numerals list 1. Holding part; 101. Middle solid ring; 1011. Docking groove; 102. Docking rod; 103. Upper pressure ring; 104. Locking block; 2. Convenient disassembly part; 201. Mounting cylinder; 202. Plug-in groove; 203. Mounting groove; 204. Disassembly block; 205. External gear; 206. Pressure plate; 3. Adjustment part; 301. Transmission rod; 302. Docking ring; 303. Adjustment groove; 304. Middle control gear; 3041. Connecting groove; 305. Adjustment frame; 306. Auxiliary block. DETAILED DESCRIPTION

[0021] The embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings and examples.

[0022] Example 1: Please refer to Figures 1 to 12The present invention proposes a lightweight planetary gearbox planetary frame structure, comprising: a holding part 1, a convenient disassembly part 2, and an adjustment part 3; the characteristic is that the holding part 1 comprises: a middle solid ring 101 and a docking groove 1011; the middle solid ring 101 adopts a circular ring structure, an inner wall of the middle solid ring 101 is provided with a circular ring-shaped protrusion, and an outer wall of the middle solid ring 101 is provided with a rectangular docking groove 1011; the middle solid ring 101 is used to assist in the installation and fixation of other structures of the device, so that the device as a whole is compact, and thus easy to maintain stability, and by providing the docking groove 1011 on the middle solid ring 101, it will be easy to match The connecting rod 102 is fixed, so as to facilitate the fixing of the installation cylinder 201 with the locking block 104; the convenient disassembly part 2 is arranged inside the holding part 1, and the installation cylinder 201 of the convenient disassembly part 2 is arranged between the fixed ring 101 and the upper pressure ring 103 in the holding part 1, and the connecting rod 102 of the holding part 1 is inserted into the plug-in groove 202 of the installation cylinder 201, and the locking block 104 of the holding part 1 is inserted into the plug-in groove 202. The convenient disassembly part 2 includes: a disassembly block 204; the disassembly block 204 adopts an arc block structure, an axial hole in the middle position of the disassembly block 204, and a pull handle is provided on the outer wall of the disassembly block 204, and the disassembly block 204 needs The two groups are used in combination, and the disassembly block 204 is inserted into the installation groove 203; the disassembly block 204 is mainly fixed to the external gear 205 by the cooperation of the two groups, so that it is easy to disassemble while maintaining stability, and then it is easy to detect and maintain it; the adjustment part 3 is arranged inside the convenient disassembly part 2, and the transmission rod 301 of the adjustment part 3 is rotatably connected to the pressure plate 206 of the convenient disassembly part 2, the central control gear 304 of the adjustment part 3 is connected to the external gear 205 of the convenient disassembly part 2 through the latch teeth, and the auxiliary block 306 of the adjustment part 3 is fixed to the top of the upper pressure ring 103 by screws, and the adjustment part 3 includes Including: docking ring 302, regulating groove 303; docking ring 302 is a circular ring structure, fixed to the outside of the transmission rod 301, with a regulating groove 303 with a circular ring through hole, and a rectangular protrusion is provided in the regulating groove 303; docking ring 302 is used to connect with different groups of central control gears 304 by cooperating with the regulating groove 303 when the transmission rod 301 is adjusted, so as to facilitate the control of different central control gears 304 to rotate, so that it is convenient to disassemble and maintain the idle external gear 205 while maintaining the normal operation of the wind turbine, so as to facilitate its use.

[0023] Embodiment 2: Based on Embodiment 1, Figure 8As shown, the docking rod 102 adopts a hexagonal prism structure, and the two groups of bottom surfaces of the docking rod 102 are respectively provided with cylindrical protrusions, and the two groups of cylindrical protrusions of the docking rod 102 are respectively provided with threaded rod-shaped protrusions. The docking rod 102 is used to maintain stability by being inserted into the docking groove 1011, so that it is convenient to cooperate with the locking block 104 and the upper pressure ring 103 to lock the overall structure of the planetary carrier under the action of the thread; the upper pressure ring 103 is a circular ring structure, and a countersunk hole is provided on the upper pressure ring 103. There are two groups of upper pressure rings 103, and the two groups of upper pressure rings 103 are respectively arranged on the upper of the middle solid ring 101 The upper pressure ring 103 is mainly used to lock the installation cylinder 201 under the tightening of the locking block 104 and the docking rod 102, so as to facilitate the maintenance of the stability of the overall structure of the planetary frame; the locking block 104 is a cylindrical structure, and a hexagonal prism-shaped groove is provided on the locking block 104, and a threaded groove is provided on the locking block 104. The locking block 104 is inserted into the upper pressure ring 103, and the locking block 104 is connected to the docking rod 102 by a thread; the locking block 104 is used to cooperate with the docking rod 102 for tightening under the action of the thread, so as to facilitate the maintenance of the overall stability of the planetary frame and make it easy to use.

[0024] like Fig. 9 As shown, the mounting tube 201 adopts a cylindrical structure, and circular plug holes are respectively provided on the two groups of bottom surfaces of the mounting tube 201, and a plug-in groove 202 with a circular through-hole structure is provided on the mounting tube 201; the mounting tube 201 is used to assist in the installation of other structures of the convenient and unloading part 2, so that it is convenient to plug in the central control gear 304, thereby facilitating the protection of the overall stability of the planetary frame and making it convenient to use, and by providing the plug-in groove 202 on the mounting tube 201, it is convenient to plug in the docking rod 102 and the locking block 104, so that it is convenient to dock and use; the mounting groove 203 is a rectangular through-hole, and the upper and lower ends of the mounting groove 203 are respectively connected with arc-shaped grooves, and the mounting groove 203 is arranged on the outer wall of the mounting tube 201; the mounting groove 203 is used to assist in the plug-in processing of the disassembly block 204 and the external gear 205, so that it is convenient to maintain stability and thereby facilitate through The external gear 205 is assisted to be disassembled by plugging, so as to facilitate its use; the external gear 205 is a columnar gear structure, and a cylindrical protrusion is provided on the external gear 205, and the external gear 205 is rotatably connected between the two sets of disassembly blocks 204; the external gear 205 is used to assist in the connection with the central control gear 304 through the latch teeth, so as to facilitate the external structure, thereby facilitating the transmission processing; the pressure plate 206 is a cylindrical structure, and an annular protrusion is provided on the outer wall of the pressure plate 206, and a cylindrical plug-in block is provided at the bottom of the annular protrusion on the outer wall of the pressure plate 206, and an annular protrusion is provided on the inner wall of the pressure plate 206, and the pressure plate 206 is plugged into the installation tube 201 through the cylindrical plug-in block; the pressure plate 206 is installed in the spacing between the transmission rod 301 and the installation tube 201 by plugging, so that it is convenient to protect the internal structure, and thus facilitate its use.

[0025] like Fig.10 As shown, the transmission rod 301 adopts a cylindrical structure, and a circular ring-shaped protrusion is provided on the outer wall of the transmission rod 301; the transmission rod 301 is mainly connected to the external control structure, so that it rotates during the rotation process, so as to facilitate the control of the central control gear 304 to rotate, so as to facilitate the transmission processing of the generator; the adjustment part 3 also includes: a connecting groove 3041; the central control gear 304 is a columnar gear structure, and a cylindrical protrusion is provided on the central control gear 304, and a circular through hole is provided on the cylindrical protrusion of the central control gear 304, and the central control gear 304 is rotatably connected to the outer wall of the transmission rod 301, and the circular through hole of the central control gear 304 is connected with a rectangular groove-shaped connecting groove 3041; the central control gear 304 is used to rotate under the drive of the transmission rod 301, so that it is convenient to cooperate with the external gear 205 to rotate, so as to assist in the transmission processing of the generator, and at the same time, the central control gear 304 is docked by cooperating with the connecting groove 3041, so as to facilitate the control of the relative central control gear 304 to rotate, so as to facilitate its use.

[0026] like Figure 11 to Figure 12 As shown, the adjustment part 3 also includes: an adjustment frame 305 and an auxiliary block 306; the adjustment frame 305 is a threaded rod structure, a turning handle is provided on the adjustment frame 305, a circular through hole is provided on the adjustment frame 305, and the adjustment frame 305 is rotatably connected to the outer wall of the transmission rod 301; the adjustment frame 305 mainly drives the transmission rod 301 to adjust its position through the thread during the rotation process, so that it is convenient to rotate with different central control gears 304, and thus convenient for its use; the auxiliary block 306 is a cylindrical structure, a threaded through hole is provided on the auxiliary block 306, an annular protrusion is provided on the outer wall of the auxiliary block 306, a rectangular protrusion is provided on the annular protrusion of the auxiliary block 306, and the middle position of the auxiliary block 306 is threadedly connected with the adjustment frame 305; the auxiliary block 306 is used to cooperate with the adjustment frame 305 for adjustment, so that it is convenient to control the transmission rod 301 for adjustment, and thus convenient for its control.

[0027] Specific usage and function of this embodiment: In the present invention, when in use, the device is installed as a whole in the planetary gear box, and the external gear 205 and the transmission rod 301 are connected to the external transmission structure respectively, and then the transmission rod 301 is controlled to rotate by the external transmission structure, and at the same time, the transmission rod 301 is docked with the upper central control gear 304 under the action of the docking ring 302 and the regulating groove 303, so that the upper central control gear 304 is driven to rotate during the rotation process, thereby driving the external gear 205 to rotate through the latch teeth during the rotation process, so that it assists in transmission to the external transmission structure, and when the internal structure is overhauled, by rotating the adjusting frame 305, it is screwed to the transmission rod 304 through the thread with the cooperation of the auxiliary block 306. 01 is pushed to drive the docking ring 302 to separate from the upper central control gear 304, and connect with the lower central control gear 304 during the continuous downward movement, so that it is convenient to assist the transmission of the internal structure of the gear box through the lower central control gear 304, and then it is convenient to keep the device as a whole in a working state, and then the idle external gear 205 on the top is removed from the mounting groove 203 under the action of the disassembly block 204, so that it is convenient to inspect and repair the external gear 205 by disassembly, and after the disassembly block 204 and the external gear 205 inside the mounting groove 203 are disassembled, it is convenient to inspect and repair the internal relative central control gear 304 through the mounting groove 203, so that the relative central control gear 304 can be inspected and repaired after long-term use.

Claims

1. A lightweight planetary gearbox planet carrier structure, comprising: A holding portion (1), a convenient disassembly portion (2), and an adjustment portion (3); the holding portion (1) comprising: a middle solid ring (101), and a docking groove (1011); the middle solid ring (101) is of an annular structure, an inner wall of the middle solid ring (101) is provided with an annular protrusion, and an outer wall of the middle solid ring (101) is provided with a docking groove (1011) of a rectangular structure; the convenient disassembly portion (2) is arranged inside the holding portion (1), and the convenient disassembly portion (2 ) is arranged between the fixing ring (101) and the upper pressing ring (103) of the retaining part (1), the connecting rod (102) of the retaining part (1) is inserted into the plug-in groove (202) of the installing tube (201), and the locking block (104) of the retaining part (1) is inserted into the plug-in groove (202), and the convenient disassembly part (2) comprises: a disassembly block (204); the disassembly block (204) adopts an arc block structure, and the middle of the disassembly block (204) The disassembly block (204) is provided with a pull handle on its outer wall. Two sets of disassembly blocks (204) are required for use in combination. The disassembly blocks (204) are inserted into the installation groove (203). The adjustment portion (3) is arranged inside the convenient disassembly portion (2). The transmission rod (301) of the adjustment portion (3) is rotatably connected to the pressure plate (206) of the convenient disassembly portion (2). The central control gear (304) of the adjustment portion (3) and the external gear (205) of the convenient disassembly portion (2) are connected to each other. ) are connected by latching teeth, the auxiliary block (306) of the adjustment part (3) is fixed to the top of the upper pressure ring (103) by screws, and the adjustment part (3) comprises: a docking ring (302) and an adjustment groove (303); the docking ring (302) is a circular ring structure, the docking ring (302) is fixed to the outside of the transmission rod (301), the docking ring (302) is provided with an adjustment groove (303) with a circular through hole, and a rectangular protrusion is provided in the adjustment groove (303).

2. A lightweight planetary gearbox planet carrier structure according to claim 1, characterized in that: The docking rod (102) adopts a hexagonal column structure, two groups of bottom surfaces of the docking rod (102) are respectively provided with cylindrical protrusions, and threaded rod-shaped protrusions are respectively provided on the two groups of cylindrical protrusions of the docking rod (102).

3. The lightweight planetary gearbox planet carrier structure according to claim 1, characterized in that: The upper pressure ring (103) is a circular ring structure, a countersunk hole is provided on the upper pressure ring (103), and two groups of upper pressure rings (103) are provided, and the two groups of upper pressure rings (103) are respectively arranged on the upper and lower sides of the middle solid ring (101); the locking block (104) is a cylindrical structure, a hexagonal column-shaped groove is provided on the locking block (104), and a threaded groove is provided on the locking block (104). The locking block (104) is inserted into the upper pressure ring (103), and the locking block (104) is connected to the docking rod (102) by a thread.

4. The lightweight planetary gearbox planet carrier structure according to claim 1, characterized in that: The installation tube (201) adopts a cylindrical structure, and two groups of bottom surfaces of the installation tube (201) are respectively provided with circular plug holes, and the installation tube (201) is provided with a plug-in groove (202) with a circular through-hole structure.

5. The lightweight planetary gearbox planet carrier structure according to claim 1, characterized in that: The installation groove (203) is a rectangular through hole, and arc-shaped grooves are respectively connected to the upper and lower ends of the installation groove (203). The installation groove (203) is arranged on the outer wall of the installation cylinder (201).

6. The lightweight planetary gearbox planet carrier structure according to claim 1, characterized in that: The external gear (205) is a columnar gear structure, a cylindrical protrusion is provided on the external gear (205), and the external gear (205) is rotatably connected between the two groups of disassembly blocks (204); the pressure plate (206) is a cylindrical tube structure, an annular protrusion is provided on the outer wall of the pressure plate (206), a cylindrical plug-in block is provided at the bottom of the annular protrusion on the outer wall of the pressure plate (206), an annular protrusion is provided on the inner wall of the pressure plate (206), and the pressure plate (206) is plugged into the installation tube (201) through the cylindrical plug-in block.

7. The lightweight planetary gearbox planet carrier structure according to claim 1, characterized in that: The transmission rod (301) has a cylindrical structure, and a circular ring-shaped protrusion is provided on the outer wall of the transmission rod (301).

8. The lightweight planetary gearbox planet carrier structure according to claim 1, characterized in that: The adjustment portion (3) further comprises: a connecting groove (3041); the central control gear (304) is a columnar gear structure, a cylindrical protrusion is provided on the central control gear (304), a circular through hole is provided on the cylindrical protrusion of the central control gear (304), the central control gear (304) is rotatably connected to the outer wall of the transmission rod (301), and the circular through hole of the central control gear (304) is connected to the connecting groove (3041) in the shape of a rectangular groove.

9. The lightweight planetary gearbox planet carrier structure according to claim 1, characterized in that: The adjusting portion (3) further comprises: an adjusting frame (305) and an auxiliary block (306); the adjusting frame (305) is a threaded rod-shaped structure, a rotating handle is provided on the adjusting frame (305), a circular through hole is provided on the adjusting frame (305), and the adjusting frame (305) is rotatably connected to the outer wall of the transmission rod (301); the auxiliary block (306) is a cylindrical structure, a threaded through hole is provided on the auxiliary block (306), an annular protrusion is provided on the outer wall of the auxiliary block (306), a rectangular protrusion is provided on the annular protrusion of the auxiliary block (306), and the adjusting frame (305) is threadedly connected to the middle position of the auxiliary block (306).

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