Novel low-noise double-planetary reducer structure

Abstract

The novel low-noise double-planetary-reducer structure comprises a double-planetary-reducer body, a speed reducing mechanism is installed in the double-planetary-reducer body, a bearing frame is fixed to one end of the double-planetary-reducer body, a clamping plate is connected to one side of the bearing frame in a clamped mode, and a lifting mechanism is installed at the upper end of the clamping plate; a cavity is formed in the clamping plate, a folding mechanism is arranged in the cavity, the lifting mechanism is connected with the folding mechanism, and limiting structures are slidably connected to the two ends of the folding mechanism. Maintenance efficiency is improved, installation stability and flexibility are guaranteed, noise is greatly reduced, impact resistance and durability are enhanced, different complex working conditions can be more fully adapted, the problems that maintenance efficiency is low, a vibration transmission path is not optimized and a noise reduction structure is single are solved, and the noise reduction effect is good. A more reliable power transmission form is provided for high-precision equipment such as industrial robots and precision machine tools, and stability and adaptability are enhanced.

Description

Technical Field

[0001] The present invention relates to the technical field of double planetary speed reducers, and particularly to a novel low-noise double planetary speed reducer structure. Background Art

[0002] A double planetary speed reducer is a precision speed reduction device based on the principle of planetary gear transmission. It adopts a dual planetary gear train or a two-stage transmission structure, and realizes torque amplification and speed regulation through the coordinated action of multiple groups of planetary gears. It has core characteristics such as high load-bearing capacity, low backlash, and compact structure. It is widely used in heavy industries, precision manufacturing industries, and special equipment. However, at present, its heat dissipation and noise reduction structure is single, and it only uses a sound-absorbing cotton layer for passive noise reduction, without solving the problem of the vibration transmission path. In addition, the disassembly efficiency is low. It adopts the form of traditional bolt connection, and each bolt needs to be disassembled one by one during maintenance and repair. The overall disassembly takes more than 30 minutes, which not only causes a decrease in production efficiency but also increases labor costs. Therefore, we propose a novel low-noise double planetary speed reducer structure to solve the above problems. Summary of the Invention

[0003] The purpose of the present invention is to solve the deficiencies existing in the prior art, and to propose a novel low-noise double planetary speed reducer structure.

[0004] To achieve the above purpose, the present invention adopts the following technical solutions:

[0005] A novel low-noise double planetary speed reducer structure includes a double planetary speed reducer body. A speed reduction mechanism is installed inside the double planetary speed reducer body. One end of the double planetary speed reducer body is fixed with a bearing frame. A clamping plate is clamped on one side of the bearing frame. A lifting mechanism is installed at the upper end of the clamping plate. A cavity is provided inside the clamping plate. A folding mechanism is provided inside the cavity. The lifting mechanism is connected to the folding mechanism. Both ends of the folding mechanism are slidably connected with a limiting structure. The limiting mechanism is clamped on both sides of the clamping plate and the bearing frame. A baffle is fixed on one side of the clamping plate. A buffer mechanism is connected to one side of the baffle. One end of the buffer mechanism is connected with a magnetic adsorption structure. Sound insulation layers are provided on the inner circumferential side walls of the clamping plate and the double planetary speed reducer body.

[0006] Preferably, the lifting mechanism includes a mounting block fixed at the upper end of the clamping plate. A hydraulic cylinder is installed at the upper end of the mounting block. The piston rod of the hydraulic cylinder penetrates through the mounting block and the side wall of the clamping plate and extends into the cavity.

[0007] Preferably, a notch is provided on one side of the upper end of the bearing frame. The mounting block is clamped in the notch.

[0008] Preferably, the folding mechanism includes a connection block connected to the lower end of the piston rod of the hydraulic cylinder. Two connecting rods are rotatably connected to one side of the connection block. One end of each connecting rod is rotatably connected to a rotating rod, and the two rotating rods are arranged in a crosswise manner. The intersection of the two rotating rods is rotatably connected.

[0009] Preferably, fixing members are rotatably connected to the four corners of the two rotating rods. One end of each fixing member is fixed with a moving block, and sliding blocks are fixed on both sides of the moving block.

[0010] Preferably, the limiting mechanism includes moving plates arranged on both sides inside the cavity. Moving grooves are provided on the opposite sides of the moving plates. Sliding grooves are provided on both sides inside the moving grooves. The moving blocks are clamped in the moving grooves, and the sliding blocks are clamped in the sliding grooves. Blocks are fixed at both ends of the moving grooves. Two limiting rods are fixed to one side of the moving plates.

[0011] Preferably, two limiting holes are provided on both sides of the carrying frame. The two limiting rods on the same side penetrate through the clamping plate and the limiting holes and extend to one side of the carrying frame.

[0012] Preferably, the buffering mechanism includes a buffering rod rotatably connected to one side of the baffle. A fixing tube is provided through one end of the buffering rod. A groove is provided inside the fixing tube. A first movable block and a second movable block are provided inside the groove. A damper is connected between the first movable block and the second movable block. Two springs are connected to one side inside the groove. One end of each spring is connected to one end of the first movable block. One end of the buffering rod is connected to one end of the second movable block.

[0013] Preferably, the magnetic adsorption structure includes a bearing plate rotatably connected to the lower end of the fixing tube. A magnetic absorption block is connected to the lower end of the bearing plate.

[0014] Preferably, the sound insulation layer is composed of a fluororubber sealing layer, a carbon fiber constraint layer, an asymmetric honeycomb damping layer, and a microporous aluminum-based sound absorption layer from the inside to the outside in sequence.

[0015] In the present invention, when the double planetary speed reducer body needs to be disassembled, the lifting mechanism drives the folding mechanism to adjust, so as to drive the limiting mechanism to move out of the carrying frame. Then, the baffle is disassembled from one side to achieve rapid maintenance and repair. The buffering mechanism and the magnetic adsorption structure on one side can be set as required. When installing, corresponding installation grooves are provided on the installation frame, and the magnetic absorption blocks are clamped in the installation grooves for adsorption and clamping to ensure the firmness of the installation. The buffering mechanism buffers. The aperture of the microporous aluminum-based sound absorption layer is 0.2 - 0.5 mm, the perforation rate is 18%, the asymmetric honeycomb damping layer is a trapezoidal composite unit, the carbon fiber constraint layer is orthogonally laid at 90°, and the Shore hardness of the fluororubber sealing layer is 65 ± 3.

[0016] In the present invention, when the dual planetary speed reducer body needs to be disassembled, the lifting mechanism is started. The piston rod of the hydraulic cylinder contracts, driving the connecting block to move upward. The movement of the connecting block causes the connecting rod rotatably connected thereto to pull the rotating rod. Since the two rotating rods are cross - arranged and rotatably connected at the intersection, the rotating rod rotates and drives the fixing members at the four corners to move. The moving blocks on the fixing members slide in the moving grooves, and the sliders slide in the sliding grooves, so that the limiting rods are removed from the limiting holes of the bearing frame. After that, the baffle can be disassembled from one side, realizing the rapid disassembly of the dual planetary speed reducer body, which is convenient for maintenance and repair.

[0017] In the present invention, during installation, corresponding installation grooves are provided on the mounting frame, and the magnetic - absorbing blocks at the lower end of the bearing plate are clamped in the installation grooves, and are adsorbed and clamped by the magnetism of the magnetic - absorbing blocks to ensure the firm installation of the dual planetary speed reducer. At the same time, the buffer mechanism can play a buffering role during the installation process. When an external force acts, the buffer rod moves into the fixed tube, the first movable block and the second movable block move in the groove, the spring is compressed, and the damper consumes energy to reduce the impact force.

[0018] The present invention has the following advantages:

[0019] 1. Through the coordinated action of the lifting mechanism, the folding mechanism and the limiting mechanism, the disassembly of the dual planetary speed reducer body can be quickly realized, greatly shortening the maintenance and repair time, improving the production efficiency, and reducing the labor cost;

[0020] 2. The magnetic adsorption structure is clamped and adsorbed by the magnetic - absorbing block and the installation groove on the mounting frame, which can ensure the firm installation of the dual planetary speed reducer, avoid loosening during operation, and improve the stability of equipment operation;

[0021] 3. The sound - insulating layer of the composite structure can absorb and block noise from multiple aspects, solving the problem of the single heat - dissipation and noise - reduction structure of the traditional speed reducer, and effectively reducing the noise generated during equipment operation;

[0022] 4. The spring and damper in the buffer mechanism can play a buffering role when the equipment is impacted by an external force, reduce the impact force on the equipment, extend the service life of the equipment, and protect the internal components of the dual planetary speed reducer from damage;

[0023] In summary, the present invention improves the maintenance efficiency, ensures the installation stability and flexibility, greatly reduces the noise, enhances the anti - impact and durability, can more fully adapt to different complex working conditions, solves the problems of low maintenance efficiency, unoptimized vibration transmission path and single noise - reduction structure, provides a more reliable power transmission form for high - precision equipment such as industrial robots and precision machine tools, and enhances the stability and adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1Structural diagram of the present invention;

[0025] Figure 2 Structural connection diagram of the lifting mechanism and folding mechanism of the present invention;

[0026] Figure 3 Structural diagram of the carrier frame setting of the present invention;

[0027] Figure 4 Structural diagram of the sound insulation layer setting on the clamping plate of the present invention;

[0028] Figure 5 Structural diagram of the buffer mechanism of the present invention;

[0029] Figure 6 Structural diagram of the magnetic attraction block setting of the present invention;

[0030] Figure 7 Structural composition diagram of the sound insulation layer of the present invention;

[0031] Figure 8 is Figure 2 Enlarged view of the structure at position A of

[0032] In the figure: 1 hydraulic cylinder, 2 moving plate, 3 limiting rod, 4 mounting block, 5 connecting block, 6 connecting rod, 7 moving block, 8 moving groove, 9 rotating rod, 10 notch, 11 limiting hole, 12 carrier frame, 13 double planetary reducer body, 14 reduction mechanism, 15 fixed pipe, 16 spring, 17 first moving block, 18 groove, 19 damper, 20 second moving block, 21 buffer rod, 22 stop block, 23 sliding groove, 24 fixing piece, 25 slider, 26 sound insulation layer, 27 baffle, 28 clamping plate, 29 fluororubber sealing layer, 30 carbon fiber restraint layer, 31 asymmetric honeycomb damping layer, 32 micro-hole aluminum-based sound absorption layer, 33 carrier plate, 34 magnetic attraction block. Detailed implementation manners

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0034] Refer to Figures 1-8, a novel low-noise double planetary speed reducer structure, including a double planetary speed reducer body 13, a speed reduction mechanism 14 is installed inside the double planetary speed reducer body 13, a bearing frame 12 is fixed at one end of the double planetary speed reducer body 13, a clamping plate 28 is clamped on one side of the bearing frame 12, a lifting mechanism is installed at the upper end of the clamping plate 28, a cavity is provided inside the clamping plate 28, a folding mechanism is provided inside the cavity, the lifting mechanism is connected to the folding mechanism, and both ends of the folding mechanism are slidably connected to a limiting structure. Both ends of the folding mechanism are slidably connected to a limiting mechanism. This limiting mechanism is clamped on both sides of the clamping plate 28 and the bearing frame 12 to play a role in fixing and limiting;

[0035] The limiting mechanism is clamped on both sides of the clamping plate 28 and the bearing frame 12. A baffle 27 is fixed on one side of the clamping plate 28, a buffer mechanism is connected to one side of the baffle 27, and a magnetic adsorption structure is connected to one end of the buffer mechanism. A magnetic adsorption structure is connected to one end of the buffer mechanism, making the speed reducer more stable and reliable during installation and use. Sound insulation layers 26 are provided on the circumferential side walls inside the clamping plate 28 and the double planetary speed reducer body 13, effectively reducing the noise generated during the operation of the speed reducer;

[0036] The lifting mechanism includes a mounting block 4 fixed at the upper end of the clamping plate 28. A hydraulic cylinder 1 is installed at the upper end of the mounting block 4. The piston rod of the hydraulic cylinder 1 penetrates through the side wall of the mounting block 4 and the clamping plate 28 and extends into the cavity. When the disassembly or installation operation of the speed reducer needs to be carried out, the piston rod of the hydraulic cylinder 1 will perform telescopic movement to provide power for the subsequent actions of the folding mechanism and the limiting mechanism;

[0037] There is a notch 10 on one side of the upper end of the bearing frame 12. The mounting block 4 is clamped in the notch 10. The folding mechanism includes a connecting block 5 connected to the lower end of the piston rod of the hydraulic cylinder 1. Two connecting rods 6 are rotatably connected to one side of the connecting block 5. One end of the connecting rod 6 is rotatably connected to a rotating rod 9, and the two rotating rods 9 are arranged crosswise. The intersection of the two rotating rods 9 is rotatably connected. When the piston rod of the hydraulic cylinder 1 expands and contracts, the connecting block 5 will move up and down accordingly, thereby driving the connecting rod 6 to move. One end of the connecting rod 6 is rotatably connected to a rotating rod 9, and the two rotating rods 9 are arranged crosswise. The rotational connection at the intersection enables the rotating rod 9 to rotate and fold flexibly under the pull of the connecting rod 6. Fixed parts 24 are rotatably connected to the four corners of the two rotating rods 9. One end of the fixed part 24 is fixed with a moving block 7. Sliders 25 are fixed on both sides of the moving block 7. When the rotating rod 9 rotates, it will drive the fixed part 24 to move, and then make the moving block 7 slide in the corresponding track, providing a basis for the action of the limiting mechanism;

[0038] At the four corners of the two rotating rods 9, there are rotatably connected fixing members 24. One end of the fixing member 24 is fixed with a moving block 7. On both sides of the moving block 7, there are fixed sliding blocks 25. The moving block 7 can slide smoothly within the moving groove 8. Meanwhile, the sliding of the sliding blocks 25 within the sliding grooves 23 further ensures the smoothness of the movement;

[0039] The limiting mechanism includes moving plates 2 arranged on both sides within the cavity. On the opposite sides of the moving plates 2, there are moving grooves 8. On both sides within the moving grooves 8, there are sliding grooves 23. The moving block 7 is clamped within the moving groove 8, and the sliding blocks 25 are clamped within the sliding grooves 23. At both ends of the moving groove 8, there are fixed stoppers 22. On one side of the moving plate 2, there are fixed two limiting rods 3. On both sides of the bearing frame 12, there are two limiting holes 11. The two limiting rods 3 on the same side penetrate through the clamping plate 28 and the limiting holes 11 and extend to one side of the bearing frame 12. When the folding mechanism operates, the limiting rods 3 will move out of or insert into the limiting holes 11 along with the movement of the moving plates 2, thereby realizing the fixing and disassembly of the speed reducer;

[0040] The buffering mechanism includes a buffer rod 21 rotatably connected to one side of the baffle 27. One end of the buffer rod 21 is provided with a fixed tube 15 in a penetrating manner. Inside the fixed tube 15, there is a groove 18. Inside the groove 18, there are a first movable block 17 and a second movable block 20, and a damper 19 is connected between the first movable block 17 and the second movable block 20. On one side inside the groove 18, there are connected two springs 16. One end of the spring 16 is connected to one end of the first movable block 17, and one end of the buffer rod 21 is connected to the second movable block 20. When an external force acts, the buffer rod 21 will move into the fixed tube 15, driving the second movable block 20 to move, thereby compressing the spring 16. Meanwhile, the damper 19 will consume energy to reduce the impact force and protect the speed reducer from damage;

[0041] The magnetic adsorption structure includes a bearing plate 33 rotatably connected to the lower end of the fixed tube 15. The lower end of the bearing plate 33 is connected with a magnetic adsorption block 34. When installing the speed reducer, corresponding installation grooves are provided on the installation frame, and the magnetic adsorption block 34 is clamped within the installation grooves. The magnetic adsorption of the magnetic adsorption block 34 is used for adsorption and clamping, ensuring the firm installation of the double planetary speed reducer. It is not only convenient for installation but also can effectively prevent the speed reducer from loosening or shifting during operation;

[0042] The sound insulation layer 26 is composed of a fluororubber sealing layer 29, a carbon fiber constraint layer 30, an asymmetric honeycomb damping layer 31, and a microporous aluminum-based sound absorption layer 32 from the inside to the outside. The fluororubber sealing layer 29 has good sealing performance and can prevent noise leakage. The carbon fiber constraint layer 30 is orthogonally laid at 90°, enhancing the strength and stability of the structure and simultaneously constraining the internal damping layer. The asymmetric honeycomb damping layer 31 is a trapezoidal composite unit, which can effectively absorb and dissipate vibration energy and reduce noise generation. The pore diameter of the microporous aluminum-based sound absorption layer 32 is 0.2 - 0.5 mm, and the perforation rate is 18%, which can further absorb noise and reduce noise propagation.

[0043] In the present invention, when the double planetary speed reducer body 13 needs to be disassembled, the lifting mechanism drives the folding mechanism to adjust, thereby driving the limiting mechanism to move out of the bearing frame 12. Then, the baffle 27 is disassembled from one side to achieve rapid maintenance and repair. The buffer mechanism and the magnetic adsorption structure on one side can be set as needed. When installing, corresponding installation grooves are set on the mounting frame, and the magnetic adsorption block 34 is clamped in the installation grooves for adsorption and clamping to ensure the firmness of the installation. The buffer mechanism buffers, the pore diameter of the microporous aluminum-based sound absorption layer 32 is 0.2 - 0.5 mm, the perforation rate is 18%, the asymmetric honeycomb damping layer 31 is a trapezoidal composite unit, the carbon fiber constraint layer 30 is orthogonally laid at 90°, and the Shore hardness of the fluororubber sealing layer 29 is 65 ± 3.

[0044] In the present invention, when the double planetary speed reducer body 13 needs to be disassembled, the lifting mechanism is started. The piston rod of the hydraulic cylinder 1 contracts, driving the connecting block 5 to move upward. The movement of the connecting block 5 causes the connecting rod 6 rotatably connected thereto to pull the rotating rod 9. Since the two rotating rods 9 are cross - arranged and rotatably connected at the intersection, the rotating rod 9 rotates and drives the fixing parts 24 at the four corners to move. The moving blocks 7 on the fixing parts 24 slide in the moving grooves 8, and the sliders 25 slide in the sliding grooves 23, so that the limiting rod 3 moves out of the limiting holes 11 of the bearing frame 12. Then, the baffle 27 can be disassembled from one side to achieve the rapid disassembly of the double planetary speed reducer body 13, facilitating maintenance and repair.

[0045] In the present invention, when installing, corresponding installation grooves are set on the mounting frame, and the magnetic adsorption block 34 at the lower end of the bearing plate 33 is clamped in the installation grooves, and the magnetic adsorption block 34 is used for adsorption and clamping by its magnetism to ensure the firmness of the installation of the double planetary speed reducer. At the same time, the buffer mechanism can play a buffering role during the installation process. When an external force acts, the buffer rod 21 moves into the fixed tube 15, the first movable block 17 and the second movable block 20 move in the groove 18, the spring 16 is compressed, and the damper 19 consumes energy to reduce the impact force.

[0046] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent replacements or changes, shall be covered by the protection scope of the present invention.

Claims

1. A novel low-noise double planetary reducer structure, including a double planetary reducer body (13), characterized in that, A reduction mechanism (14) is installed inside the double planetary speed reducer body (13). One end of the double planetary speed reducer body (13) is fixed with a bearing frame (12). One side of the bearing frame (12) is clamped with a clamping plate (28). A lifting mechanism is installed at the upper end of the clamping plate (28). A cavity is arranged inside the clamping plate (28). A folding mechanism is arranged inside the cavity. The lifting mechanism is connected to the folding mechanism. Both ends of the folding mechanism are slidably connected with a limiting structure. The limiting mechanism is clamped on both sides of the clamping plate (28) and the bearing frame (12). One side of the clamping plate (28) is fixed with a baffle (27). One side of the baffle (27) is connected with a buffer mechanism. One end of the buffer mechanism is connected with a magnetic adsorption structure. Sound insulation layers (26) are arranged on the circumferential side walls inside the clamping plate (28) and the double planetary speed reducer body (13).

2. A novel low-noise double planetary speed reducer structure according to claim 1, characterized in that: The lifting mechanism includes a mounting block (4) fixed at the upper end of the clamping plate (28). A hydraulic cylinder (1) is installed at the upper end of the mounting block (4). The piston rod of the hydraulic cylinder (1) penetrates through the side walls of the mounting block (4) and the clamping plate (28) and extends into the cavity.

3. A novel low-noise double planetary speed reducer structure according to claim 2, characterized in that: There is a notch (10) on one side of the upper end of the bearing frame (12). The mounting block (4) is clamped in the notch (10).

4. A novel low-noise double planetary speed reducer structure according to claim 2, characterized in that: The folding mechanism includes a connecting block (5) connected to the lower end of the piston rod of the hydraulic cylinder (1). Two connecting rods (6) are rotatably connected to one side of the connecting block (5). One end of the connecting rod (6) is rotatably connected to a rotating rod (9). And the two rotating rods (9) are arranged in a cross shape. The cross intersection of the two rotating rods (9) is rotatably connected.

5. A novel low-noise double planetary speed reducer structure according to claim 4, characterized in that: Fixing parts (24) are rotatably connected to the four corners of the two rotating rods (9). One end of the fixing part (24) is fixed with a moving block (7). Sliders (25) are fixed on both sides of the moving block (7).

6. A novel low-noise double planetary speed reducer structure according to claim 5, characterized in that: The limiting mechanism includes moving plates (2) arranged on both sides inside the cavity. Moving grooves (8) are arranged on the opposite sides of the moving plates (2). Sliding grooves (23) are arranged on both sides inside the moving grooves (8). The moving block (7) is clamped in the moving groove (8). The slider (25) is clamped in the sliding groove (23). Blocks (22) are fixed at both ends of the moving groove (8). Two limiting rods (3) are fixed on one side of the moving plate (2).

7. A novel low-noise double planetary speed reducer structure according to claim 6, characterized in that: There are two limiting holes (11) on both sides of the bearing frame (12). The two limiting rods (3) on the same side penetrate through the clamping plate (28) and the limiting holes (11) and extend to one side of the bearing frame (12).

8. A novel low-noise double planetary speed reducer structure according to claim 1, characterized in that: The buffer mechanism includes a buffer rod (21) rotatably connected to one side of a baffle (27). One end of the buffer rod (21) is provided with a fixed tube (15) penetrating through it. A groove (18) is provided in the fixed tube (15). A first movable block (17) and a second movable block (20) are provided in the groove (18). A damper (19) is connected between the first movable block (17) and the second movable block (20). Two springs (16) are connected to one side in the groove (18). One end of the spring (16) is connected to one end of the first movable block (17). One end of the buffer rod (21) is connected to one end of the second movable block (20).

9. A novel low-noise double planetary speed reducer structure according to claim 8, characterized in that: The magnetic adsorption structure includes a bearing plate (33) rotatably connected to the lower end of the fixed tube (15). A magnetic attraction block (34) is connected to the lower end of the bearing plate (33).

10. A novel low-noise double planetary speed reducer structure according to claim 1, characterized in that: The sound insulation layer (26) is composed of a fluororubber sealing layer (29), a carbon fiber constraint layer (30), an asymmetric honeycomb damping layer (31), and a microporous aluminum-based sound absorption layer (32) from the inside to the outside in sequence.

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