A two-stage planetary gear speed-increasing direct-drive paddle drive
The direct-drive propeller drive device with a two-stage planetary gear speed increase directly connects the output end of the two-stage planetary gear to the rotor and shaft, solving the problem of high energy conversion loss in the traditional propeller drive method and improving drive efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI FENGTENG NEW ENERGY CO LTD
- Filing Date
- 2025-07-30
- Publication Date
- 2026-07-21
AI Technical Summary
Traditional propeller drive systems rely on multi-stage gearboxes, resulting in significant energy conversion losses and impacting drive performance.
The direct-drive propeller drive device, which uses a two-stage planetary gear speed increaser, directly drives the rotating block and shaft to rotate by mounting bolts, thereby achieving efficient power transmission.
Reduce energy conversion losses and improve the driving performance of the propeller.
Smart Images

Figure CN224532886U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of two-stage planetary gears, and more particularly to a direct-drive propeller drive device for increasing speed using two-stage planetary gears. Background Technology
[0002] A two-stage planetary gear is a transmission device that achieves high reduction ratios or speed increases through two sets of planetary gear trains connected in series. Its core structure includes a sun gear, planetary gears, a planet carrier, and a ring gear. It features a compact structure, high load-bearing capacity, and high transmission efficiency, and is widely used in industrial robots, wind power generation, and automotive automatic transmissions. In modern wind power generation, ship propulsion, and some large mechanical transmission systems, the performance requirements for blade drive devices are increasingly demanding. Traditional blade drive methods often suffer from low efficiency, complex structures, and high maintenance costs. For example, in the field of wind power generation, traditional gearbox drive devices suffer from high wear and failure rates in the gearbox, which not only affects the reliability of the entire system but also increases operation and maintenance costs. At the same time, with the continuous growth in demand for clean energy, higher requirements are being placed on the power density and conversion efficiency of blade drive devices.
[0003] Traditional propeller drive systems often rely on intermediate transmission components such as multi-stage gearboxes to match speed and torque. While such a structure can meet basic power transmission requirements to a certain extent, it suffers from significant energy loss in the transmission link between the propeller and the two-stage planetary gears, which can easily affect the propeller's driving performance. Utility Model Content
[0004] The purpose of this invention is to provide a direct-drive propeller drive device with a two-stage planetary gear speed increase, which solves the technical problem that the traditional propeller drive method in the prior art often relies on intermediate transmission components such as multi-stage gearboxes to achieve the matching of speed and torque. Although such a structure can meet the basic power transmission requirements to a certain extent, the energy conversion loss in the transmission link between the propeller and the two-stage planetary gear is large, which can easily affect the driving performance of the propeller.
[0005] To achieve the above objectives, this utility model employs a direct-drive propeller with a two-stage planetary gear speed increase. A drive unit includes a housing and structural components. The structural components include blades, a rotating shaft, a block, a rotating block, and mounting bolts. The rotating block is rotatably connected to the housing and located on one side of the housing. The block is fixedly connected to the rotating block and located on the side of the rotating block away from the housing. The rotating shaft is fixedly connected to the rotating block and located on the side of the rotating block away from the block. The blades are fixedly connected to the rotating shaft and located on the side of the rotating shaft away from the rotating block. The mounting bolts are detachably connected to the block and located on the side of the block away from the rotating block.
[0006] The mounting bolt includes a mounting screw and a mounting nut. The mounting screw is detachably connected to the block and is located on the side of the block away from the rotating block. The mounting nut is threadedly connected to the mounting screw and abuts against the block.
[0007] The mounting screw has an external thread located on the side of the mounting screw near the mounting nut and engages with the mounting nut; the mounting nut has an internal threaded hole located on the side of the mounting nut near the external thread and engages with the external thread.
[0008] The block has a through hole located on the side of the block near the mounting screw and engages with the mounting screw.
[0009] The block has a mounting cavity located on the side of the block away from the rotating block.
[0010] The rotating block has a rotating groove located on the side of the rotating block near the housing and engaging with the housing.
[0011] The structural components also include a cooling pipe and a conveying component. The cooling pipe is fixedly connected to the housing and is located on the side of the housing away from the rotating shaft. The conveying component is connected to the cooling pipe.
[0012] The conveying component includes a water tank, a pump body, and a heat dissipation module. The output end of the pump body is connected to the input end of the cooling pipe through a pipe. The input end of the heat dissipation module is connected to the output end of the cooling pipe through a pipe. The water tank is connected to the input end of the pump body through a pipe and to the output end of the heat dissipation module through a pipe.
[0013] This utility model discloses a direct-drive propeller drive device with a two-stage planetary gear speed increase. The mounting screw passes through the through hole and engages with the mounting nut. The internal threaded hole meshes with the external thread. The output end of the two-stage planetary gear is installed in the mounting cavity of the block. When the two-stage planetary gear drives the block to rotate, it drives the rotating block to rotate on the housing. The rotating block drives the rotating shaft, which in turn drives the propeller to rotate inside the housing, directly connecting to the output end of the two-stage planetary gear to achieve power generation. Efficient energy transfer reduces energy conversion losses, thereby improving the driving performance of the propeller blades. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0015] Figure 1 is a schematic diagram of the overall structure of a direct-drive propeller drive device with a two-stage planetary gear speed increase according to the present invention.
[0016] Figure 2 is a schematic diagram of the structure of the rotating shaft and rotating block of this utility model.
[0017] Figure 3 shows the utility model. Figure 2 Enlarged view of point A.
[0018] In the diagram: 101-box body, 102-blade, 103-shaft, 104-block, 105-rotating block, 106-mounting bolt, 107-cooling pipe, 108-mounting screw, 109-mounting nut, 110-external thread, 111-internal thread hole, 112-through hole, 113-mounting cavity, 114-rotating groove, 115-water tank, 116-pump body, 117-heat dissipation module. Detailed Implementation
[0019] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.
[0020] Please refer to Figures 1 to 3, where Figure 1 is a schematic diagram of the overall structure of a direct-drive propeller drive device with a two-stage planetary gear speed increase according to this utility model, Figure 2 is a schematic diagram of the structure of the rotating shaft and rotating block of this utility model, and Figure 3 is a schematic diagram of the structure of the rotating shaft and rotating block of this utility model. Figure 2 Enlarged view of point A.
[0021] This utility model provides a direct-drive propeller 102 drive device with a two-stage planetary gear speed increase, including a housing 101 and structural components. The structural components include a propeller 102, a rotating shaft 103, a block 104, a rotating block 105, mounting bolts 106, a cooling pipe 107, and a conveying component. The mounting bolts 106 include a mounting screw 108 and a mounting nut 109. The mounting screw 108 has an external thread 110, and the mounting nut 109 has an internal threaded hole 111. The block 104 has a through hole 112 and a mounting cavity 113. The rotating block 105 has a rotating groove 114. The conveying component includes a water tank 115, a pump body 116, and a heat dissipation module 117. The aforementioned solution solves the problems of traditional propeller 102... The driving method often relies on intermediate transmission components such as multi-stage gearboxes to achieve the matching of speed and torque. Although such a structure can meet the basic power transmission requirements to a certain extent, there is a problem that the energy conversion loss is large in the transmission link between the blade 102 and the double-stage planetary gear, which can easily affect the driving performance of the blade 102.
[0022] In this specific embodiment, the rotating block 105 is rotatably connected to the housing 101 and located on one side of the housing 101; the block 104 is fixedly connected to the rotating block 105 and located on the side of the rotating block 105 away from the housing 101; the rotating shaft 103 is fixedly connected to the rotating block 105 and located on the side of the rotating block 105 away from the block 104; the blade 102 is fixedly connected to the rotating shaft 103 and located on the side of the rotating shaft 103 away from the rotating block 105; the mounting bolt 106 is detachably connected to the block 104 and located on the side of the block 104 away from the rotating block 105; one end of the housing 101 is hollow; the other end of the housing 101 is designed with a rotating hole; the outer side of the rotating block 105 is designed with a rotating groove; the rotating block 105... The rotating slot is rotatably connected to the rotating hole of the housing 101. One end of the block 104 is designed with a mounting cavity, and the top of the block 104 is designed with a through hole. The outer side of the closed end of the block 104 is fixedly connected to the left end of the rotating block 105. The left end of the rotating shaft 103 is fixedly connected to the right end of the rotating block 105, and the right end of the rotating shaft 103 is fixedly connected to the blade 102. The mounting bolt 106, through the through hole of the block 104, installs the output end of the double-stage planetary gear in the mounting cavity of the block 104. When the double-stage planetary gear drives the block 104 to rotate, it drives the rotating block 105 to rotate on the housing 101. The rotating block 105 drives the rotating shaft 103 to drive the blade 102 on the housing 101. The internal rotation is directly connected to the output end of the two-stage planetary gear, realizing efficient power transmission, reducing energy conversion losses, and thus improving the driving performance of the blade 102.
[0023] The mounting screw 108 is detachably connected to the block 104 and is located on the side of the block 104 away from the rotating block 105. The mounting nut 109 is threadedly connected to the mounting screw 108 and abuts against the block 104. The bottom outer side of the mounting screw 108 is designed with external threads, and the end of the mounting nut 109 is designed with an internal thread hole. The mounting screw 108 engages with the internal thread hole of the mounting nut 109 through the through hole of the block 104. The mounting nut 109 abuts against the outer side of the block 104. Through the cooperation of the mounting screw 108 and the mounting nut 109, the output end of the double-stage planetary gear is fixed on the block 104, thereby installing the output end of the double-stage planetary gear on the block 104.
[0024] Secondly, the mounting screw 108 has an external thread 110, which is located on the side of the mounting screw 108 near the mounting nut 109 and engages with the mounting nut 109. The mounting nut 109 has an internal threaded hole 111, which is located on the side of the mounting nut 109 near the external thread 110 and engages with the external thread 110. The external thread 110 is located on the outer side of the bottom end of the mounting screw 108, and the internal threaded hole 111 is located at the end of the mounting nut 109. The connection between the mounting screw 108 and the mounting nut 109 is achieved through the engagement of the internal threaded hole 111 with the external thread 110.
[0025] Meanwhile, the block 104 has a through hole 112, which is located on the side of the block 104 near the mounting screw 108 and engages with the mounting screw 108. The through hole 112 is located at the top of the block 104. The mounting screw 108 passes through the through hole 112 and engages with the mounting nut 109, thereby realizing the connection between the mounting screw 108 and the block 104.
[0026] Then, the block 104 has a mounting cavity 113, which is located on the side of the block 104 away from the rotating block 105. The mounting cavity 113 is located at the left end of the block 104. The output end of the double-stage planetary gear is fixed to the block 104 by the mounting bolt 106, thereby realizing the connection between the block 104 and the output end of the double-stage planetary gear.
[0027] In addition, the rotating block 105 has a rotating groove 114, which is located on the side of the rotating block 105 close to the housing 101 and cooperates with the housing 101. The rotating groove 114 is located on the outside of the rotating block 105 and is rotatably connected to the rotating hole of the housing 101. By driving the rotating groove 114 of the rotating block 105 to rotate on the rotating hole of the housing 101, the connection between the rotating block 105 and the housing 101 is realized.
[0028] Furthermore, the cooling pipe 107 is fixedly connected to the housing 101 and is located on the side of the housing 101 away from the rotating shaft 103; the conveying member is connected to the cooling pipe 107, which is located inside the housing 101. Coolant is conveyed to the cooling pipe 107 through the conveying member. As the coolant passes through the cooling pipe 107, it carries away the heat from the housing 101, thereby cooling the housing 101.
[0029] Finally, the output end of the pump body 116 is connected to the input end of the cooling pipe 107 via a pipe; the input end of the heat dissipation module 117 is connected to the output end of the cooling pipe 107 via a pipe; the water tank 115 is connected to the input end of the pump body 116 via a pipe and to the output end of the heat dissipation module 117 via a pipe. The interior of the housing 101 is hollow. The front end of the top of the housing 101 is connected to the input end of the pump body 116 via a pipe, and the rear end of the top of the housing 101 is connected to the output end of the heat dissipation module 117 via a pipe. The pump body 116 delivers the coolant in the water tank 115 to the cooling pipe 107. The heat dissipation module 117 dissipates the coolant flowing out of the cooling pipe 107. The cooled coolant flows back to the water tank 115, thereby delivering coolant to the cooling pipe 107.
[0030] Using a direct-drive propeller 102 drive device with a double-stage planetary gear speed increase according to this embodiment, the mounting screw 108 passes through the through hole 112 and engages with the mounting nut 109. The internal threaded hole 111 meshes with the external thread 110. The output end of the double-stage planetary gear is installed in the mounting cavity 113 of the block 104. When the double-stage planetary gear drives the block 104 to rotate, it drives the rotating block 105 to rotate on the housing 101. The rotating block 105 drives the rotating shaft 103 to drive the propeller 102 to rotate inside the housing 101, directly connecting with the output end of the double-stage planetary gear, realizing efficient power transmission, reducing energy conversion losses, and thus improving the driving performance of the propeller 102.
[0031] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Those skilled in the art can understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present utility model are still within the scope of the utility model.
Claims
1. A direct-drive propeller drive device with a two-stage planetary gear speed increase, comprising a housing, characterized in that, It also includes structural components The structural components include a blade, a shaft, a block, a rotating block, and mounting bolts. The rotating block is rotatably connected to the housing and located on one side of the housing. The block is fixedly connected to the rotating block and located on the side of the rotating block away from the housing. The shaft is fixedly connected to the rotating block and located on the side of the rotating block away from the block. The blade is fixedly connected to the shaft and located on the side of the shaft away from the rotating block. The mounting bolts are detachably connected to the block and located on the side of the block away from the rotating block.
2. The direct-drive propeller drive device with double-stage planetary gear speed increase as described in claim 1, characterized in that, The mounting bolt includes a mounting screw and a mounting nut. The mounting screw is detachably connected to the block and is located on the side of the block away from the rotating block. The mounting nut is threadedly connected to the mounting screw and abuts against the block.
3. The direct-drive propeller drive device with double-stage planetary gear speed increase as described in claim 2, characterized in that, The mounting screw has an external thread located on the side of the mounting screw near the mounting nut and engages with the mounting nut; the mounting nut has an internal threaded hole located on the side of the mounting nut near the external thread and engages with the external thread.
4. The direct-drive propeller drive device with double-stage planetary gear speed increase as described in claim 3, characterized in that, The block has a through hole located on the side of the block near the mounting screw and engages with the mounting screw.
5. The direct-drive propeller drive device with two-stage planetary gear speed increase as described in claim 1, characterized in that... It lies in, The block has a mounting cavity located on the side of the block away from the rotating block.
6. The direct-drive propeller drive device with double-stage planetary gear speed increase as described in claim 1, characterized in that, The rotating block has a rotating groove located on the side of the rotating block near the housing and engaging with the housing.
7. The direct-drive propeller drive device with double-stage planetary gear speed increase as described in claim 1, characterized in that, The structural assembly also includes a cooling pipe and a conveying component. The cooling pipe is fixedly connected to the housing and is located on the side of the housing away from the rotating shaft. The conveying component is connected to the cooling pipe.
8. The direct-drive propeller drive device with double-stage planetary gear speed increase as described in claim 7, characterized in that, The conveying component includes a water tank, a pump body, and a heat dissipation module. The output end of the pump body is connected to the input end of the cooling pipe through a pipe. The input end of the heat dissipation module is connected to the output end of the cooling pipe through a pipe. The water tank is connected to the input end of the pump body through a pipe and to the output end of the heat dissipation module through a pipe.