Cycloidal pin gear speed reducer for stirring device

By introducing oil storage components and shock absorption components into the mixing device, the problems of insufficient or excessive lubrication and poor shock absorption in traditional reducers are solved, thus achieving stable, efficient operation and low energy consumption of the mixing device.

CN121111963APending Publication Date: 2025-12-12JIANGSU TAILONG MACHINERY GRP CO CO LTD
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Patent Information

Application Number
CN202511240046.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-02
Publication Date
2025-12-12

AI Technical Summary

Technical Problem

Traditional cycloidal pinwheel reducers suffer from insufficient or excessive lubrication in mixing devices. They cannot dynamically control the supply of lubricating oil according to the operating conditions, and their shock absorption effect is limited, leading to equipment wear, noise pollution, and unstable operation.

Method used

The design incorporates an oil storage component and a shock absorption component. The oil storage component controls the release of lubricating oil by rotating the movable cover driven by a motor, and the lubricating oil is transported in conjunction with the spiral blades. The shock absorption component absorbs vibration through a double-layer structure of rubber pads and buffer pads, and reduces energy consumption by combining differential gear transmission.

Benefits of technology

It achieves precise lubrication based on operating conditions, extends equipment life, reduces energy consumption, reduces noise pollution, and improves the operational stability and reliability of the mixing device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of speed reducers, in particular to a cycloidal-pin gear speed reducer for a stirring device, which comprises a supporting seat, a cycloidal-pin gear speed reducer body is fixedly connected to the top of the supporting seat, an oil storage assembly is arranged at the top end of the cycloidal-pin gear speed reducer body, and a damping assembly is arranged at the top of the supporting seat; the oil storage assembly comprises an oil storage pipe, a fixed circular truncated cone, a motor, a movable cover, a plugging plate, a notch, a communicating pipe and a rotating rod. The oil storage pipe fixedly communicates with the top end of the cycloidal pin gear speed reducer body, and the motor is arranged in the top end of the oil storage pipe. According to the device, through a motor, a movable cover, a blocking plate and a notch in the oil storage assembly, the oil injection amount is controlled; the problems of waste of lubricating oil, increase of use cost, increase of running resistance and acceleration of aging of parts caused by excessive oil injection are avoided, and the defects of insufficient lubrication of transmission parts, aggravated part abrasion, shortened service life of equipment and even failure caused by insufficient oil injection are overcome.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of speed reducer, in particular to a cycloidal pin wheel speed reducer for stirring device. BACKGROUND

[0002] In modern industrial production, stirring devices are widely used in many fields such as chemical industry, food industry, pharmaceutical industry, etc., and bear key operations such as material mixing, dispersion and reaction. The cycloidal pin wheel speed reducer becomes a commonly used power transmission equipment for stirring devices due to its large transmission ratio, high efficiency and compact structure. However, when the traditional cycloidal pin wheel speed reducer is applied to the stirring device, there are still many problems to be solved, which is difficult to fully meet the special working condition requirements of stirring operation. In terms of power output, the working scene of the stirring device is complex and diverse, and the nature of the processed materials varies significantly, from low viscosity fluid to high viscosity paste material, which requires the speed reducer to have stable and strong low-speed large-torque output capability. However, when the traditional speed reducer is faced with high load and high viscosity material stirring, the power conversion efficiency is insufficient, and it is difficult to continuously and stably provide sufficient power for the stirring paddle, resulting in low stirring efficiency, uneven stirring quality, and even equipment jamming, overload damage and other situations, which seriously affects the production progress and product quality. The performance of the lubrication system is crucial to the service life and running stability of the speed reducer. The traditional cycloidal pin wheel speed reducer adopts regular lubricating oil injection or simple oil bath lubrication, which cannot realize precise lubricating oil supply according to the actual running state of the equipment. During the long-term continuous operation of the stirring device, problems of insufficient lubrication or excessive lubrication are prone to occur. Insufficient lubrication will exacerbate the wear of key components such as bearings and gears, shortening the service life of the equipment; excessive lubrication will cause waste of lubricating oil and may also cause oil leakage and other pollution problems, increasing equipment maintenance cost and environmental pressure. In addition, the stirring device generates a lot of vibration and noise during operation, and the shock absorption structure of the traditional speed reducer is relatively simple, with limited shock absorption effect. Continuous vibration not only affects the normal cooperation of internal parts of the speed reducer, causing parts to loosen and damage, but also has adverse effects on surrounding equipment and working environment, producing large noise pollution, endangering the health of operators, reducing the reliability and stability of equipment operation, and increasing the probability of equipment failure and maintenance frequency. SUMMARY

[0003] The purpose of the present application is to provide a cycloidal pin wheel speed reducer for stirring device, to solve the problem that regular injection or oil bath lubrication cannot dynamically control the lubricating oil supply according to the running state, and the risk of "insufficient lubrication" or "excessive lubrication", and the problem that the shock absorption measures of the speed reducer are mostly single rubber pad or simple support structure, which can only absorb part of the low-frequency vibration, and cannot effectively buffer high-frequency vibration and complex problems.

[0004] To achieve the above object, the application provides the following technical scheme: a cycloidal pin wheel speed reducer for a stirring device, comprising: A support seat, a top of the support seat is fixedly connected with a cycloidal pin wheel speed reducer body, a top end of the cycloidal pin wheel speed reducer body is provided with an oil storage assembly, and a top of the support seat is provided with a damping assembly.

[0005] Preferably, the oil storage assembly comprises an oil storage pipe, a fixed circular table, a motor, a movable cover, a blocking plate, a notch, a communication pipe and a rotating rod. The oil storage pipe is fixedly connected at the top end of the cycloidal pin wheel speed reducer body, the motor is arranged inside the top end of the oil storage pipe, and the fixed circular table is fixedly connected to the inner wall of the oil storage pipe; the rotating rod is fixedly connected to the output end of the motor, the movable cover is fixedly connected to the bottom of the rotating rod, the blocking plate is fixedly connected to the bottom of the movable cover, the movable cover is provided with a plurality of and is circumferentially distributed, and the middle part of the fixed circular table is rotatably connected to the outer wall of the rotating rod.

[0006] Preferably, the middle part of the movable cover is provided with a notch, the blocking plate blocks the notch, and the communication pipe is fixedly connected to the bottom of the oil storage pipe.

[0007] Preferably, the bottom end of the rotating rod penetrates through the movable cover and extends into the communication pipe, a helical blade is fixedly sleeved to the outer wall of the bottom end of the rotating rod, and the helical blade is located in the communication pipe; The pitch of the helical blade gradually increases from the top end to the bottom end, and the blade surface of the helical blade is provided with a flow guide groove, the flow guide groove extends along the helical direction and penetrates through both ends of the blade.

[0008] Preferably, a sealing rubber ring is arranged between the inner wall of the movable cover and the outer wall of the fixed circular table, and the sealing rubber ring is tightly attached to the inner wall of the movable cover and the outer wall of the fixed circular table.

[0009] Preferably, the middle part of the fixed circular table is funnel-shaped, an anti-sticking coating is arranged on the inner wall of the funnel-shaped structure, and the bottom of the fixed circular table is detachably connected to the inner wall of the oil storage pipe through threads; The outer wall of the oil storage pipe is provided with a transparent observation window, and the outer end of the observation window is marked with a liquid level scale line.

[0010] Preferably, the top of the support seat is provided with a sealing cover, and a ring of elastic sealing strips is arranged at the edge of the sealing cover. The top of the sealing cover is provided with an oil filling port with a sealing thread, and a filter screen is arranged in the inside of the oil filling port.

[0011] Preferably, the buffer assembly comprises a rubber pad, a buffer pad, and a reinforcing plate, the rubber pad is fixedly connected to the bottom of the support base, the buffer pad is fixedly connected to the bottom of the rubber pad, the reinforcing plate is fixedly connected to the bottom of the support base, the reinforcing plate is X-shaped, the reinforcing plate is provided with a plurality of reinforcing plates, and the support base is provided with a threaded hole. The rubber pad and the buffer pad are provided with metal spring sheets between the interiors of the rubber pad and the buffer pad, and the two side surfaces of the spring sheets are fixedly connected to the bottom surface of the rubber pad and the top surface of the buffer pad, respectively.

[0012] Preferably, the oil storage pipe is provided with a connecting cover inside, the connecting cover is fixedly connected to the inner wall of the top end of the oil storage pipe, the motor is located in the inner wall of the connecting cover, and a conical frustum is fixedly connected to the top of the connecting cover.

[0013] Compared with the prior art, the beneficial effects of the present application are: The oil storage assembly of the cycloidal pin gear speed reducer of the stirring device provides reliable guarantee for stable operation of the equipment through the design of lubricating oil storage, release and transportation, controls the release of lubricating oil through the rotation of the motor-driven movable cover, cooperates with the forced transportation of the spiral blade, and provides lubrication for the bearing and the meshing part of the gear according to the operating state of the speed reducer. Compared with the traditional lubrication mode, this lubrication reduces unnecessary lubricating oil consumption, avoids excessive wear of parts caused by insufficient lubrication, significantly prolongs the service life of the core components of the speed reducer, reduces the equipment maintenance cost, and ensures that the stirring device maintains good performance in long-term continuous operation.

[0014] The shock absorption assembly installed at the bottom of the support base is used for the characteristics of large vibration of the stirring device during operation, and a double-layer shock absorption and stable support system is constructed. The double-layer structure of the rubber pad and the buffer pad can effectively absorb and buffer the vibration generated during the operation of the speed reducer, and reduce the influence of the vibration on the internal parts. The stable support network composed of X-shaped reinforcing plates enhances the strength of the support base while dispersing the operating force to prevent the deformation of the support base. This stable shock absorption design not only reduces the equipment operation noise, but also ensures the normal operation of the internal precision components of the speed reducer, reduces the probability of failure caused by vibration, improves the reliability and stability of the stirring device operation, and provides strong support for the continuity of industrial production.

[0015] The differential gear transmission, the lubrication of the oil storage assembly and the stable support of the shock absorption assembly make the equipment have significant energy-saving advantages during operation. The differential gear transmission reduces the invalid friction loss, the oil storage assembly intelligently transports lubricating oil according to the operating state, reduces the mechanical operation resistance, and the shock absorption assembly avoids the additional energy consumption caused by vibration. The three work together to greatly reduce the overall energy consumption of the stirring device. Compared with the traditional speed reducer, the same stirring task can be completed while effectively saving the electric energy consumption, which meets the development trend of green energy saving in industrial production, and reduces the long-term operating cost of enterprises. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present application; Figure 2 is a schematic diagram of the side view structure of the present application; Figure 3 is a schematic diagram of the oil storage pipe structure of the present application; Figure 4 is a schematic diagram of the oil storage assembly structure of the present application; Figure 5 is a schematic diagram of the rotating rod structure of the present application; Figure 6 is a schematic diagram of the spiral blade position of the present application; Figure 7 is a schematic diagram of the shock absorbing assembly structure of the present application.

[0017] In the figure: 1, support seat; 2, cycloidal pin wheel reducer body; 3, oil storage assembly; 31, oil storage pipe; 32, fixed circular table; 33, motor; 34, movable cover; 35, plugging plate; 36, notch; 37, communication pipe; 38, rotating rod; 4, sealing cover; 5, shock absorbing assembly; 51, rubber pad; 52, buffer pad; 53, reinforcing plate; 6, connecting cover; 7, spiral blade; 8, conical table; 9, observation window; 10, liquid level scale; 11, oil filling port; 12, filter screen. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0019] Please refer to Figures 1-7 The present application provides a technical solution: a cycloidal pin wheel reducer for a stirring device, which comprises a support seat 1, a cycloidal pin wheel reducer body 2, an oil storage assembly 3, and a shock absorbing assembly 5. The top of the support base 1 is fixedly connected with the body 2 of the cycloidal pin wheel speed reducer, and an oil storage assembly 3 is arranged at the top end of the body 2. An oil storage pipe 31 is connected to the top end of the body 2, and a motor 33 is arranged inside the top end of the oil storage pipe 31. A rotating rod 38 is driven to rotate, and a plurality of movable covers 34 distributed in a circle are driven to rotate by the rotating rod 38. The movable covers 34 are connected with a blocking plate 35 at the bottom. A slot 36 is formed in the middle of the movable cover 34, and the slot 36 can be opened when the blocking plate 35 is removed. The blocking plate 35 is matched with a connecting pipe 37 at the bottom to realize the storage and on-demand supplement of lubricating oil. The bottom end of the rotating rod 38 extends into the connecting pipe 37, and a spiral blade 7 is fixedly sleeved on the outer wall of the bottom end of the rotating rod 38. The pitch of the spiral blade 7 gradually increases from the top end to the bottom end, and the blade surface is provided with a flow guide groove to assist the conveying of lubricating oil. A fixed circular table 32 is fixedly connected to the inner wall of the oil storage pipe 31, and the middle part is in a funnel shape. The inner wall is provided with an anti-sticking coating and is detachably connected to the inner wall of the oil storage pipe 31 through a thread, so that the maintenance is facilitated. A sealing rubber ring is arranged between the inner wall of the movable cover 34 and the outer wall of the fixed circular table 32 to ensure the sealing property of the assembly.

[0020] A sealing cover 4 is arranged at the top of the support base 1, and a plurality of elastic sealing strips are arranged at the edge of the sealing cover 4. An oil inlet 11 with a sealing thread is arranged at the top, and a filter screen 12 is arranged inside the oil inlet 11. A damping assembly 5 at the bottom of the support base 1 comprises a rubber pad 51, a buffer pad 52 and an X-shaped reinforcing plate 53. The rubber pad 51 is fixedly connected to the bottom of the support base 1, and the buffer pad 52 is fixedly connected to the bottom of the rubber pad 51. A metal spring sheet is arranged between the rubber pad 51 and the buffer pad 52. The reinforcing plate 53 is fixedly connected to the bottom of the support base 1 and is provided with a plurality of reinforcing plates 53. The support base 1 is provided with a threaded hole, and the damping assembly 5 can effectively reduce the vibration and enhance the stability of the equipment.

[0021] According to Figure 1 , Figure 2 and Figure 7 , the buffer assembly 5 mainly comprises the rubber pad 51, the buffer pad 52 and the reinforcing plate 53. The rubber pad 51 is directly fixedly connected to the bottom of the support base 1 and serves as a first layer of buffer structure for contacting the outside. The material has good elasticity and can effectively absorb the vibration energy generated during the operation of the speed reducer, preliminarily buffer the vibration during the operation of the equipment and reduce the transmission of the vibration to the support base 1 and other components. The buffer pad 52 is fixedly connected to the bottom of the rubber pad 51 and serves to further buffer and dampen. It cooperates with the rubber pad 51 to form a double buffering effect, further weakens the strength and influence range of the vibration and buffers the buffer pad 52. The buffer pad 52 is usually made of a material with special damping performance and can play a stable buffering function under different frequencies and intensities of vibration to ensure the stability of the speed reducer during operation. The reinforcing plates 53 are also fixedly connected to the bottom of the support base 1, are in X-shaped, and are provided in plurality. The unique X-shaped design greatly enhances the structural strength and stability of the support base 1. The plurality of reinforcing plates 53 are staggered with each other, like a stable support network, which can not only disperse the force generated during the operation of the speed reducer, but also effectively prevent the support base 1 from deforming due to uneven force, further improving the overall buffering performance of the buffering assembly 5.

[0022] According to Figure 1 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 , the oil storage assembly 3 mainly comprises an oil storage pipe 31, a fixed circular table 32, a motor 33, a movable cover 34, a blocking plate 35, a notch 36, a communication pipe 37, and a rotating rod 38. The oil storage pipe 31 is fixedly connected to the top end of the cycloidal pinwheel speed reducer body 2, serves as the main container of the oil storage assembly 3, and is used for storing lubricating oil. The motor 33 is arranged inside the top end of the oil storage pipe 31, and provides power for the operation of the entire oil storage assembly 3. The fixed circular table 32 is fixedly connected to the inner wall of the oil storage pipe 31, and plays a supporting and auxiliary flow guiding role. The shape of the fixed circular table 32 is funnel-shaped at the middle part, facilitating the smooth flow of lubricating oil into the structure below.

[0023] The rotating rod 38 is fixedly connected to the output end of the motor 33, and can rotate under the driving of the motor 33. The movable cover 34 is fixedly connected to the bottom of the rotating rod 38, is provided in plurality and is circumferentially distributed, and a sealing rubber ring is arranged between the inner wall of the movable cover 34 and the outer wall of the fixed circular table 32 to tightly fit and prevent lubricating oil from leaking. The notch 36 is arranged in the middle part of the movable cover 34, and the blocking plate 35 is fixedly connected to the bottom of the movable cover 34. Under normal conditions, the blocking plate 35 blocks the notch 36 to control the outflow of lubricating oil. The communication pipe 37 is fixedly connected to the bottom of the oil storage pipe 31, and is used for conveying the lubricating oil in the oil storage pipe 31 to the cycloidal pinwheel speed reducer body 2. The bottom end of the rotating rod 38 penetrates through the movable cover 34 and extends into the communication pipe 37. A helical blade 7 is fixedly sleeved to the outer wall of the bottom end of the rotating rod 38. The helical blade 7 is located in the communication pipe 37. When the rotating rod 38 rotates, the helical blade 7 can push the lubricating oil to flow into the speed reducer body 2 through the communication pipe 37, thereby realizing the stable conveying of lubricating oil. In addition, a connecting cover 6 is arranged in the oil storage pipe 31, is fixedly connected to the inner wall of the top end of the oil storage pipe 31, and the motor 33 is located in the inner wall of the connecting cover 6. A circular conical table 8 is fixedly connected to the top of the connecting cover 6, and plays a role of protecting the motor 33 and assisting in guiding the flow of lubricating oil.

[0024] The effects achieved by the entire mechanism are as follows: The cycloidal pinwheel reducer body 2 is the core component for power conversion. During operation, power is transmitted from the input shaft, driving the eccentric sleeve to perform eccentric motion. The movement of the eccentric sleeve causes the cycloidal wheel to roll eccentrically within the pin gear housing. Due to the difference in the number of teeth between the cycloidal wheel and the pin gear housing (usually 1-2 fewer teeth than the pin gear housing), the cycloidal wheel rotates during its rolling process using this differential tooth transmission principle. Through the W output mechanism, the rotational motion of the cycloidal wheel is converted into the smooth rotation of the output shaft, thereby realizing the transformation from high-speed, low-torque input to low-speed, high-torque output. This meets the special requirements of the stirring device for torque and speed, driving the stirring blades to complete the stirring operation. Lubrication of oil storage components The oil storage component 3 is a key part to ensure the long-term stable operation of the reducer. Its working process revolves around the storage, release and delivery of lubricating oil. In the initial state, the lubricating oil is stored in the oil storage pipe 31. At this time, the motor 33 is in a stationary state. The sealing plate 35 at the bottom of the movable cover 34 tightly seals the slot 36 to prevent lubricating oil leakage. When the reducer starts running, the motor 33 of the oil storage assembly 3 is activated. The motor 33 drives the rotating rod 38 to rotate, and the rotating rod 38 drives the movable cover 34, which is circumferentially distributed at the bottom, to rotate synchronously. As the movable cover 34 rotates, when the slot 36 rotates to a specific angle and connects with the inside of the oil storage pipe 31, the lubricating oil gathers into the slot 36 through the fixed frustum 32, which is funnel-shaped in the middle, under the action of gravity. At the same time, the spiral blade 7, which extends from the bottom of the rotating rod 38 into the connecting pipe 37, rotates with the rotating rod 38, forcibly delivering the gathered lubricating oil to various lubrication parts of the cycloidal pinwheel reducer body 2, such as bearings and gear meshing parts. The sealing rubber ring between the inner wall of the movable cover 34 and the outer wall of the fixed frustum 32 effectively prevents the lubricating oil from leaking during the delivery process. The connecting cover 6 and the frustum 8 not only protect the motor 33, but also assist the lubricating oil to flow smoothly into the slot 36, ensuring stable and continuous lubrication for the reducer, reducing component wear, and extending the service life of the equipment. Stable support of shock absorption components The shock absorption assembly 5 is installed at the bottom of the support base 1 to provide a stable working environment for the reducer. The rubber pad 51 and the buffer pad 52 form a double-layer shock absorption structure. When the reducer vibrates during operation, the rubber pad 51 deforms first due to its good elasticity, absorbing part of the vibration energy; the buffer pad 52 further buffers the remaining vibration, converting the vibration energy into heat energy and other forms of energy to consume it, thus weakening the transmission of vibration. Multiple reinforcing plates 53 arranged in an X shape are fixedly connected to the bottom of the support base 1. They interlock to form a stable support network, effectively dispersing the force generated by the reducer during operation, enhancing the structural strength and stability of the support base 1, and preventing the support base 1 from deforming due to uneven force. The threaded holes on the support base 1 facilitate the fixed installation of the reducer on the base of the mixing device, ensuring that the shock absorption component 5 can continuously and stably perform its shock absorption effect under complex mixing operation conditions, reducing equipment operating noise, reducing the impact of vibration on the internal parts of the reducer and surrounding equipment, and ensuring the smooth operation of the mixing device.

[0025] Component collaboration relationships The top of the support base 1 is fixedly connected to the cycloidal pinwheel reducer body 2, and the top of the support base 1 is equipped with an oil storage component 3. The oil storage pipe 31 is connected to the top of the cycloidal pinwheel reducer body 2. The motor 33 drives the rotating rod 38 to rotate, which drives multiple circumferentially distributed movable covers 34 to rotate. The bottom of the movable cover 34 is connected to the sealing plate 35. The movable cover 34 has a slot 36 in the middle. When the sealing plate 35 is removed, the slot 36 can be opened. With the help of the bottom connecting pipe 37, the lubricating oil can be stored and replenished as needed. The bottom end of the rotating rod 38 extends into the connecting pipe 37. The outer wall of the rotating rod is fixedly fitted with a spiral blade 7. The pitch of the spiral blade 7 gradually increases from the top end to the bottom end. The blade surface is provided with a guide groove to assist in the delivery of lubricating oil. The fixed truncated cone 32 is fixedly connected to the inner wall of the oil storage pipe 31. The middle part is funnel-shaped. The inner wall is provided with an anti-stick coating and is detachably connected to the inner wall of the oil storage pipe 31 by threads for easy maintenance. A sealing rubber ring is provided between the inner wall of the movable cover 34 and the outer wall of the fixed truncated cone 32 to ensure the sealing of the component.

[0026] The top of the support base 1 is provided with a sealing cover 4, and the edge of the sealing cover 4 is provided with an elastic sealing strip. The top is provided with an oil inlet 11 with a sealing thread. The oil inlet 11 is provided with a filter screen 12. During the process of injecting lubricating oil into the reducer, it can filter out any impurities that may exist in the lubricating oil, ensuring that only clean lubricating oil enters the reducer, thereby reducing the risk of component wear and failure caused by impurities.

[0027] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A cycloidal pinwheel reducer for a stirring device, characterized in that: include: Support base (1), the top of the support base (1) is fixedly connected to the cycloidal pinwheel reducer body (2), the top of the cycloidal pinwheel reducer body (2) is provided with an oil storage component (3), and the bottom of the support base (1) is provided with a shock absorption component (5).

2. The cycloidal pinwheel reducer for a stirring device according to claim 1, characterized in that: The oil storage assembly (3) includes an oil storage pipe (31), a fixed truncated cone (32), a motor (33), a movable cover (34), a sealing plate (35), a slot (36), a connecting pipe (37), and a rotating rod (38); The oil storage pipe (31) is fixedly connected to the top of the cycloidal pinwheel reducer body (2). The motor (33) is located inside the top of the oil storage pipe (31). The fixed truncated cone (32) is fixedly connected to the inner wall of the oil storage pipe (31). The rotating rod (38) is fixedly connected to the output end of the motor (33). The movable cover (34) is fixedly connected to the bottom of the rotating rod (38). The sealing plate (35) is fixedly connected to the bottom of the movable cover (34). The movable cover (34) has several units and is distributed in a circular pattern. The middle part of the fixed truncated cone (32) is rotatably connected to the outer wall of the rotating rod (38).

3. The cycloidal pinwheel reducer for a stirring device according to claim 2, characterized in that: The movable cover (34) has a slot (36) in the middle, the sealing plate (35) seals the slot (36), and the connecting pipe (37) is fixedly connected to the bottom of the oil storage pipe (31).

4. The cycloidal pinwheel reducer for a stirring device according to claim 2, characterized in that: The bottom end of the rotating rod (38) passes through the movable cover (34) and extends into the inside of the connecting pipe (37). The outer wall of the bottom end of the rotating rod (38) is fixedly fitted with a spiral blade (7), which is located inside the connecting pipe (37). The pitch of the spiral blade (7) gradually increases from the top to the bottom, and the surface of the spiral blade (7) is provided with a guide groove, which extends along the spiral direction and passes through both ends of the blade.

5. A cycloidal pinwheel reducer for a stirring device according to claim 2, characterized in that: A sealing rubber ring is provided between the inner wall of the movable cover (34) and the outer wall of the fixed truncated cone (32), and the sealing rubber ring is tightly fitted to the inner wall of the movable cover (34) and the outer wall of the fixed truncated cone (32).

6. A cycloidal pinwheel reducer for a stirring device according to claim 2, characterized in that: The fixed truncated cone (32) is funnel-shaped in the middle. An anti-stick coating is provided on the inner wall of the funnel-shaped structure. The bottom of the fixed truncated cone (32) is detachably connected to the inner wall of the oil storage pipe (31) by a thread. The outer wall of the oil storage pipe (31) is provided with a transparent observation window (9), and the outer end of the observation window (9) is marked with a liquid level scale line (10).

7. A cycloidal pinwheel reducer for a stirring device according to claim 1, characterized in that: The support base (1) is provided with a sealing cover (4) at the top, and the edge of the sealing cover (4) is provided with an elastic sealing strip; The top of the sealing cap (4) is provided with an oil inlet (11) with a sealing thread, and a filter screen (12) is provided inside the oil inlet (11).

8. A cycloidal pinwheel reducer for a stirring device according to claim 1, characterized in that: The buffer assembly includes a rubber pad (51), a buffer pad (52), and a reinforcing plate (53). The rubber pad (51) is fixedly connected to the bottom of the support base (1), the buffer pad (52) is fixedly connected to the bottom of the rubber pad (51), and the reinforcing plate (53) is fixedly connected to the bottom of the support base (1). The reinforcing plate (53) is X-shaped and there are several reinforcing plates (53). The support base (1) is provided with threaded holes. A metal spring sheet is provided between the rubber pad (51) and the buffer pad (52), and the two sides of the spring sheet are fixedly connected to the bottom surface of the rubber pad (51) and the top surface of the buffer pad (52), respectively.

9. A cycloidal pinwheel reducer for a stirring device according to claim 2, characterized in that: The oil storage pipe (31) is provided with a connecting cover (6) inside. The connecting cover (6) is fixedly connected to the inner wall of the top of the oil storage pipe (31). The motor (33) is located on the inner wall of the connecting cover (6). A truncated cone (8) is fixedly connected to the top of the connecting cover (6).