A shock-resistant modular speed reducer

Abstract

This utility model relates to the field of modular reducer technology, and more particularly to a shock-resistant modular reducer, including a motor. A main control module is located on the left side of the motor, and the main control module is connected to a heat dissipation component via a flange. A reducer housing is connected to the right side of the motor via a flange, and the output end of the motor movably passes through the reducer housing. A sun gear is fixedly installed at the output end of the motor. The reducer housing meshes with three planetary gears via inner wall gear blocks. A planetary carrier is fixedly installed at the center of the three planetary gears via bolts. A fixed frame is movably sleeved on the right central shaft of the planetary carrier, and an output shaft is movably sleeved on the right central shaft of the planetary carrier. This device can drive the output shaft to rotate and output through gear transmission. A suction pump circulates oil in the internal pipes to remove heat. Large-sized flanges, reinforcing ribs, high-strength reamed bolts, and cast steel material increase structural rigidity. Labyrinth seals and lip seals enhance the sealing effect.

Description

Technical Field

[0001] This utility model relates to the field of modular speed reducer technology, specifically to an anti-vibration modular speed reducer. Background Technology

[0002] Modular reducers do not refer to a specific type of reducer (such as planetary, worm gear, or helical gear reducers), but rather to a design and manufacturing philosophy. This philosophy refers to designing the core functional components of a reducer (such as the gearbox) as standardized "modules" with uniform installation interfaces and connection dimensions. To address issues such as bearing damage and loose connections under vibration in traditional modular reducers, a modular design philosophy is adopted. Furthermore, special reinforcements are made to the structure, materials, and manufacturing processes, resulting in a vibration-resistant modular reducer capable of withstanding severe impacts, vibrations, frequent start-stop / reverse rotation, and other extreme operating conditions while maintaining high reliability and a long lifespan.

[0003] Chinese utility model patent CN220770086U discloses a modular reducer, which includes "each reduction shaft connected to the reducer housing via a fixed seat, reducing the overall weight and facilitating disassembly and assembly; in addition, when the reducer is working, the high-temperature lubricating oil inside the reducer can be discharged and circulated, and the high-temperature lubricating oil can be cooled through the cooling box, thereby avoiding overheating inside the reducer"; however, the high-frequency vibration of the housing can easily lead to structural connection damage, and the single sealing ring is prone to wear, lubricating oil leakage, dust and moisture intrusion, and accelerated internal wear. Utility Model Content

[0004] The purpose of this invention is to provide a shock-resistant modular speed reducer to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a shock-resistant modular reducer, including a motor, a main control module on the left side of the motor, and a heat dissipation component connected to the main control module via a flange; a reducer housing connected to the right side of the motor via a flange, and the output end of the motor movably penetrates the reducer housing; a sun gear is fixedly installed at the output end of the motor; the reducer housing meshes with three planetary gears via inner wall tooth blocks; the centers of the three planetary gears are all fixedly connected to a planetary carrier via bolts; a fixed frame is movably sleeved on the right central shaft of the planetary carrier, and an output shaft is movably sleeved on the right central shaft of the planetary carrier.

[0006] The heat dissipation assembly includes a delivery pipe. The inlet of the delivery pipe is fixedly installed on the output port on the left side of the main control module by bolts and is connected to the internal pipe of the main control module. The output port of the delivery pipe is connected to and communicates with the bottom input port of the cooling box. The outer wall of the cooling box is provided with a ring of heat dissipation fins. The output port at the top of the cooling box is connected to and communicates with an oil delivery pipe through a suction pump. The output port of the oil delivery pipe is fixedly installed on the input port at the top of the main control module, and a labyrinth seal ring and a lip seal ring are arranged sequentially from bottom to top inside the output port.

[0007] The beneficial effects of this utility model are as follows: the device can drive the output shaft to rotate and output through gear transmission, the suction pump makes the oil circulate in the internal pipeline to remove heat, the large-size flange, reinforcing ribs, high-strength reamed bolts and cast steel material increase the structural rigidity, and the labyrinth seal ring and lip seal ring enhance the sealing effect.

[0008] To prevent internal lubricating oil from leaking from the junction of the output shaft and the mounting bracket, which would reduce output efficiency:

[0009] The fixture is further configured such that: a sealed bearing is provided at the center of the fixed frame, and a plug hole is provided at the center of the sealed bearing, and a labyrinth seal ring and a lip seal ring are arranged sequentially from right to left in the hole.

[0010] By adopting the above technical solution, the output shaft is fitted onto the right central shaft of the planetary carrier along the central hole of the fixed frame. The labyrinth seal is a non-contact seal that is wear-resistant and prevents external impurities from entering. The lip seal is made of PTFE material, which causes less wear on the shaft surface and can stably improve the sealing performance under vibration, thereby avoiding leakage while ensuring output efficiency.

[0011] To ensure stable gear operation, the lubricating oil inside the gearbox housing can be circulated and cooled via a suction pump.

[0012] The gearbox housing is further configured such that its inner wall has two through holes, one above the other, which are connected to and communicate with the oil pipes in the main control module through internal pipes.

[0013] By adopting the above technical solution, the suction pump circulates the oil in the reducer housing along the pipeline, and the heat is carried away by the heat conduction of the coolant in the cooling box, ensuring stable gear operation and improving work efficiency.

[0014] To enable the motor's output end to effectively drive the planetary carrier and output shaft, and to increase torque:

[0015] The motor is further configured such that its output end forms a transmission mechanism with the planetary gear set together with the sun gear and planetary gears.

[0016] By adopting the above technical solution, the output end of the motor drives the sun gear to rotate, and the sun gear drives the three planetary gears meshing with it to rotate on the gear blocks inside the reducer housing, thereby driving the planet carrier, which is fixedly connected to the central shaft of the three planetary gears, to rotate, ensuring the effective operation of the output shaft and increasing the torque.

[0017] To achieve a stable connection between the mounting bracket and the reducer housing under high vibration conditions and improve transmission stability:

[0018] The further configuration is as follows: the fixing frame is fixedly connected to the reducer housing by high-strength reamed bolts, and the outer wall of the fixing frame and the reducer housing are provided with multiple reinforcing ribs at equal intervals around the axis. Both the fixing frame and the reducer housing are made of high-strength cast steel.

[0019] By adopting the above technical solution, the fixing frame is fixed to the reducer housing through high-strength reamed hole bolts, and the reducer housing is fixed to the motor in the same way. Multiple reinforcing ribs and high-strength cast steel material ensure the overall connection rigidity. The reamed hole bolts can accurately match the bolt holes. The rod body itself bears the shear force, rather than the threaded part of ordinary bolts, so it can withstand great torsional shear stress, prevent the connection from loosening, and improve the transmission stability.

[0020] To avoid affecting the stable transmission between the planetary carrier and the output shaft due to installation errors or deformation:

[0021] A further configuration is provided: the planetary carrier and the output shaft are connected by a drum-shaped spline.

[0022] By adopting the above technical solution, the drum-shaped spline has a much larger contact area, extremely strong load-bearing capacity, and angle compensation capability, which can better adapt to installation errors and deformation, and improve the transmission stability of the output shaft sleeved on the planetary carrier center shaft.

[0023] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the main view of this utility model;

[0025] Figure 2 This utility model Figure 1 Unfolding diagram;

[0026] Figure 3 This utility model Figure 1 Schematic diagram of the right half of the cross-section;

[0027] Figure 4 This is a schematic diagram of the heat dissipation component of this utility model;

[0028] Figure 5 This utility model Figure 4Schematic diagram of the cross section at point A in the middle.

[0029] In the diagram: 1. Motor; 2. Main control module; 3. Heat dissipation component; 301. Delivery pipe; 302. Cooling box; 303. Suction pump; 304. Oil delivery pipe; 305. Labyrinth seal; 306. Lip seal; 4. Gearbox housing; 5. Planetary gear; 6. Planetary carrier; 7. Fixing frame; 8. Output shaft. Detailed Implementation

[0030] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of the present invention in any way.

[0031] Please see Figures 1 to 5 An anti-vibration modular reducer includes a motor 1, a main control module 2 on the left side of the motor 1, and a heat dissipation component 3 connected to the main control module 2 via a flange. A reducer housing 4 is connected to the right side of the motor 1 via a flange, and the output end of the motor 1 movably passes through the reducer housing 4. A sun gear is fixedly installed at the output end of the motor 1. The reducer housing 4 meshes with three planetary gears 5 through inner wall tooth blocks. The centers of the three planetary gears 5 are fixedly connected to a planet carrier 6 by bolts. A fixed frame 7 is movably sleeved on the right central shaft of the planet carrier 6, and an output shaft 8 is movably sleeved on the right central shaft of the planet carrier 6.

[0032] The heat dissipation assembly 3 includes a delivery pipe 301. The inlet of the delivery pipe 301 is fixedly installed on the output port on the left side of the main control module 2 by bolts and is connected to the internal pipe of the main control module 2. The output port of the delivery pipe 301 is connected to the bottom inlet of the cooling box 302 and is connected to it. The outer wall of the cooling box 302 is provided with a ring of heat dissipation fins. The output port at the top of the cooling box 302 is connected to the oil delivery pipe 304 through the suction pump 303 and is connected to it. The output port of the oil delivery pipe 304 is fixedly installed on the input port at the top of the main control module 2, and a labyrinth seal ring 305 and a lip seal ring 306 are arranged sequentially from bottom to top in the output port.

[0033] In this embodiment, as Figure 1 , Figure 2 and Figure 3 As shown, the fixed frame 7 has a sealed bearing at its center, and the sealed bearing has an insertion hole at its center. A labyrinth seal ring 305 and a lip seal ring 306 are arranged sequentially from right to left in the hole.

[0034] In this embodiment, as Figure 2 As shown, the inner wall of the reducer housing 4 has two through holes, one above the other. The through holes are connected to the oil pipes in the main control module 2 through internal pipes.

[0035] In this embodiment, as Figure 2and Figure 3 As shown, the output end of motor 1 forms a transmission mechanism with planetary carrier 6 through the meshing of sun gear and planetary gear 5.

[0036] In this embodiment, as Figure 1 , Figure 2 and Figure 3 As shown, the fixing frame 7 is fixedly connected to the reducer housing 4 by high-strength reamed bolts, and the outer walls of the fixing frame 7 and the reducer housing 4 are provided with multiple reinforcing ribs at equal intervals around the axis. Both the fixing frame 7 and the reducer housing 4 are made of high-strength cast steel.

[0037] In this embodiment, as Figure 3 As shown, the planetary carrier 6 and the output shaft 8 are connected by a drum-shaped spline.

[0038] The computer software involved in the hardware carriers such as motors in the technical solution is software technology known to those skilled in the art. It is merely applied to the aforementioned hardware carriers. In other words, the computer software portion of the technical solution is an essential technical feature for solving the aforementioned technical problem, constituting a necessary technical feature for the technical problem solved by this application, but it is not a differentiating technical feature or a point of technical improvement. The applicant has not made any technical improvements to the computer software portion involved in the aforementioned related hardware carriers, nor is it a key technical point of the invention.

[0039] Therefore, the "motor" and other components mentioned in this application are physical functional modules that combine existing computer software programs or protocols with the hardware carrier of this application. The computer software programs involved in these physical functional modules are technologies known to those skilled in the art and are not improvements of this application. The improvement of this application should be the interaction between the various physical functional modules, that is, the improvement of the overall structure of the anti-vibration modular reducer of this application, in order to solve the corresponding technical problems to be solved by this application.

[0040] The working process of this vibration-resistant modular speed reducer is as follows:

[0041] First, the heat dissipation component 3 is bolted to the left side of the main control module 2 on the motor 1. Simultaneously, the inlet of the delivery pipe 301 and the outlet of the oil pipe 304 are fixedly connected to the inlet and outlet of the main control module 2. The labyrinth seal ring 305 and lip seal ring 306 on the inlet and outlet ensure a tight seal. The reducer housing 4 is fitted onto the output end of the motor 1, and the flanges of both are fixedly connected using high-strength reamed bolts. Then, the sun gear is fixedly installed onto the output end of the motor 1. Three planetary gears 5 are bolted onto the movable shaft at the end of the planetary carrier 6. A ring of toothed blocks is provided around the inner wall of the reducer housing 4. The three planetary gears 5 are then meshed and installed between the sun gear and the toothed blocks of the reducer housing 4. Next, the fixing bracket 7 is fixedly connected to the bolt holes on the flange of the reducer housing 4. The output shaft 8 is inserted into the middle of the fixing bracket 7 until it is fitted onto the right central shaft of the planetary carrier 6. The planetary carrier 6 and the output shaft 8 are connected using a drum-shaped spline. The drum-shaped spline has a much larger contact area, extremely high load-bearing capacity, and angle compensation capability. To better accommodate installation errors and deformation, all flanges are equipped with elastic sealing gaskets. The reamed bolt holes on the motor 1, main control module 2, reducer housing 4, and mounting bracket 7 can precisely match the bolt holes. The rod body itself bears the shear force, rather than the threaded part of ordinary bolts, thus it can withstand extremely high torsional shear stress and prevent loosening of the connection. Multiple reinforcing ribs, high-strength cast steel material, and the planetary carrier 6 double support design ensure the overall connection rigidity and transmission efficiency. The suction pump 303 circulates the oil in the reducer housing 4 through two through holes along the pipeline. The coolant in the cooling box 302 conducts heat away, and the cooling fins of the cooling box 302 further remove the heat from the coolant, ensuring stable gear operation. The suction pump 303 is connected to the main control module 2 by wires. The labyrinth seal ring 305 is a non-contact seal that is wear-resistant and prevents external impurities from entering. The lip seal ring 306 is made of PTFE material, which reduces wear on the surface of the output shaft 8 of the equipment and seals the pipeline. The double sealing design reduces wear and prevents lubricating oil leakage, as well as dust and moisture intrusion.

[0042] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0043] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0044] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The above examples are only for the purpose of helping to understand the method and core ideas of this utility model. The above description is only a preferred embodiment of this utility model. It should be noted that due to the limitations of textual expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or changes can be made without departing from the principles of this utility model, and the above technical features can also be combined in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without modification, should all be considered within the protection scope of this utility model.

Claims

1. An anti-seismic modular speed reducer comprising an electric motor (1), characterized by: The motor (1) has a main control module (2) on its left side, and the main control module (2) is connected to a heat dissipation component (3) via a flange. The motor (1) has a reducer housing (4) on its right side via a flange. The output end of the motor (1) passes through the reducer housing (4). The output end of the motor (1) is fixedly installed with a sun gear. The reducer housing (4) meshes with three planetary gears (5) via inner wall tooth blocks. The centers of the three planetary gears (5) are fixedly connected to the planet carrier (6) via bolts. The right central shaft of the planet carrier (6) is movably sleeved with a fixed frame (7), and the right central shaft of the planet carrier (6) is movably sleeved with an output shaft (8). The heat dissipation component (3) includes a delivery pipe (301). The inlet of the delivery pipe (301) is fixedly installed on the output port on the left side of the main control module (2) by bolts and is connected to the internal pipe of the main control module (2). The output port of the delivery pipe (301) is connected to and communicates with the bottom input port of the cooling box (302). The outer wall of the cooling box (302) is provided with a ring of heat dissipation fins. The output port at the top of the cooling box (302) is connected to and communicates with the oil delivery pipe (304) through a suction pump (303). The output port of the oil delivery pipe (304) is fixedly installed on the input port at the top of the main control module (2). The output port is provided with a labyrinth seal ring (305) and a lip seal ring (306) from bottom to top.

2. A shock resistant modular speed reducer as claimed in claim 1, wherein: The fixed frame (7) is provided with a sealing bearing at its center. The sealing bearing is provided with a plug hole at its center, and a labyrinth seal ring (305) and a lip seal ring (306) are provided in the hole from right to left.

3. A shock resistant modular speed reducer as claimed in claim 1, wherein: The inner wall of the reducer housing (4) is provided with two through holes, one above the other. The through holes are connected to the oil pipe in the main control module (2) through internal pipes.

4. A shock resistant modular speed reducer as claimed in claim 1, wherein: The output end of the motor (1) forms a transmission mechanism through the meshing of the sun gear, planetary gear (5) and planet carrier (6).

5. A shock-resistant modular speed reducer as claimed in claim 1, characterized in that: The fixing frame (7) is fixedly connected to the reducer housing (4) by high-strength reamed hole bolts, and the outer walls of the fixing frame (7) and the reducer housing (4) are provided with multiple reinforcing ribs at equal intervals around the axis. Both the fixing frame (7) and the reducer housing (4) are made of high-strength cast steel.

6. A shock-resistant modular speed reducer as claimed in claim 1, characterized in that: The planetary carrier (6) and the output shaft (8) are connected by a drum-shaped spline.

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