Non-magnetic planetary speed reducer

Abstract

The application relates to the technical field of planetary reducers, and discloses a non-magnetic planetary reducer which comprises a base and a shell assembly arranged on the top of the base, the shell assembly comprises a middle shell fixedly installed on the top of the base, front and rear bearing seats are fixedly installed at the two ends of the middle shell, a driving mechanism is arranged in the front bearing seat, when a driving shaft rotates, multiple stirring blades on the outer wall of the driving shaft rotate, the rotating stirring blades generate centrifugal force on the liquid in a water storage cavity, the liquid is thrown to the edge of the water storage cavity under the action of the centrifugal force and enters multiple sliding cavities communicated with the water storage cavity, after the liquid enters the sliding cavities, a pressure receiving sheet is pushed to slide away from the water storage cavity against the elastic force of a pressing spring, the pressure receiving sheet drives a push rod to slide in a sliding groove in the inner wall of the sliding cavity and the front bearing seat, and the self-adapting adjusting effect is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of planetary reducer, and particularly relates to a non-magnetic planetary reducer. BACKGROUND

[0002] In modern industrial production and technological applications, ordinary planetary reducers have the problem of magnetic interference, which is difficult to meet the needs of specific fields. For example, in the scenes of precision electronic instruments, medical equipment, aerospace, etc., the magnetism may affect the normal operation of the equipment, leading to data errors, signal interference, etc. In addition, traditional planetary reducers also have deficiencies in lubrication and adaptive adjustment, affecting their work efficiency and service life. Therefore, it is of great significance to develop a non-magnetic planetary reducer. It not only avoids magnetic interference and ensures the high-precision operation of the equipment, but also optimizes the lubrication and adaptive adjustment, improves the overall performance and stability, and better adapts to complex and high-demand working environments.

[0003] In the patent with the patent number CN223178122U, a non-magnetic planetary reducer is disclosed, which specifically relates to the technical field of reducers, and includes a placement plate, two screw plates are fixedly connected to the surface of the placement plate, a reducer body is arranged between the two screw plates, two clamping mechanisms are arranged between the reducer body and the screw plates, a bottom plate is arranged at the bottom of the placement plate, and a plurality of buffer mechanisms are arranged between the placement plate and the bottom plate. The patent sets up a buffer mechanism, so that the impact force generated by the reducer body is released, ensuring the accuracy and stability of the reducer and prolonging the service life of the reducer. The clamping mechanism is set up to easily fix and release the reducer body. The reducer body material is set up, and the device can be applied to some special application scenarios such as medical equipment, spacecraft, precision instruments, etc.

[0004] The existing technology has the following defects:

[0005] Excessive load and torque during initial operation: Compared with traditional high-magnetic alloy steel, non-magnetic materials (such as some stainless steel, copper alloy, etc.) are often insufficient in strength and hardness, which can cause the gear to wear, deform, or even break under high load and high torque working conditions, affecting the service life and transmission accuracy of the speed reducer; during the initial start and operation of the speed reducer, the parts have not yet reached the optimal state of wear and tear, and the tooth surface contact is not uniform; therefore, a structure is needed to rotate the gear ring during the initial operation and to adaptively fix the gear ring during stable rotation. The rotation of the gear ring can make the tooth surfaces of the planet wheel and the gear ring more fully contact and wear, avoiding some specific tooth surfaces from bearing excessive load at the initial stage, thereby reducing the initial wear rate. This can effectively protect the gear made of non-magnetic material, reduce the risk of wear, deformation, and breakage, prolong the service life of the speed reducer, improve the transmission accuracy, and ensure stable and efficient operation of the speed reducer throughout the entire service life.

[0006] Uneven distribution of lubricating oil during initial operation: The internal structure of the non-magnetic planetary speed reducer is compact, and the lubricating oil can be blocked by the gear, planet carrier, and other components during flow, resulting in insufficient lubricating oil supply in some areas. Therefore, a structure is needed to uniformly distribute the lubricating oil during the initial operation of the gear ring rotation. The rotation of the gear ring helps to bring the lubricating oil to each meshing position, forming a more effective lubricating film, reducing the friction coefficient, improving the transmission efficiency and accuracy of the speed reducer, reducing the heat and noise during operation, thereby ensuring stable and reliable operation of the speed reducer during the initial operation stage. SUMMARY

[0007] In view of the problems of excessive load and torque during initial operation and uneven distribution of lubricating oil in the prior art, a non-magnetic planetary speed reducer is proposed.

[0008] The present application provides a non-magnetic planetary speed reducer, which aims to: by setting the driving mechanism and adaptive mechanism, rotating the gear ring during the initial operation, and adaptively fixing the gear ring during stable rotation. The rotation of the gear ring can make the tooth surfaces of the planet wheel and the gear ring more fully contact and wear, avoiding some specific tooth surfaces from bearing excessive load at the initial stage, thereby reducing the initial wear rate. This can effectively protect the gear made of non-magnetic material, reduce the risk of wear, deformation, and breakage, prolong the service life of the speed reducer, improve the transmission accuracy, and ensure stable and efficient operation of the speed reducer throughout the entire service life. The rotation of the gear ring helps to bring the lubricating oil to each meshing position, forming a more effective lubricating film, reducing the friction coefficient, improving the transmission efficiency and accuracy of the speed reducer, reducing the heat and noise during operation, thereby ensuring stable and reliable operation of the speed reducer during the initial operation stage.

[0009] The technical scheme of the present application is as follows: a non-magnetic planetary reducer, comprising a base and a shell assembly arranged on the top of the base, wherein the shell assembly comprises a middle shell fixedly installed on the top of the base, front and rear bearing seats fixedly installed at the two ends of the middle shell, a driving mechanism arranged in the inside of the front bearing seat, an adaptive mechanism arranged in the inside of the middle shell, and an output assembly arranged in the inside of the rear bearing seat.

[0010] The driving mechanism comprises a driving shaft rotationally connected to the inner wall of the front bearing seat, and a plurality of stirring blades uniformly distributed and fixedly connected to the outer wall of the driving shaft.

[0011] The centrifugal extrusion assembly comprises a fixed shell fixedly connected to the inner wall of the front bearing seat, the inner wall of the fixed shell is rotationally connected to the outer wall of the driving shaft, the inner wall of the fixed shell is provided with a water storage cavity, the plurality of stirring blades are arranged in the inside of the water storage cavity, and the outer wall of the fixed shell is fixedly connected with a plurality of sliding cavities uniformly distributed.

[0012] Further, the inner wall of the sliding cavity is slidingly connected with a pressure receiving piece, the side of the pressure receiving piece away from the water storage cavity is fixedly connected with an extrusion spring between the inner wall of the sliding cavity, and the side of the pressure receiving piece away from the water storage cavity is further fixedly connected with a push rod, and the outer wall of the push rod is slidingly connected with the inner wall of the sliding cavity.

[0013] Further, the inner wall of the front bearing seat is provided with a plurality of sliding grooves uniformly distributed, and the outer wall of the plurality of push rods is respectively slidingly connected with the inner wall of the plurality of sliding grooves.

[0014] By adopting the above scheme, the driving mechanism is arranged, power is input into the reducer through the driving shaft, the plurality of stirring blades on the outer wall of the driving shaft rotate when the driving shaft rotates, the stirring blades are located in the water storage cavity of the fixed shell, the stirring blades rotating generate centrifugal force on the liquid in the water storage cavity, the liquid is thrown to the edge of the water storage cavity under the action of the centrifugal force, and enters the plurality of sliding cavities communicated with the water storage cavity, after the liquid enters the sliding cavity, the pressure receiving piece is pushed to slide away from the water storage cavity against the elastic force of the extrusion spring, the pressure receiving piece drives the push rod to slide in the sliding cavity and the sliding groove in the inner wall of the front bearing seat, and the adaptive adjustment effect is achieved.

[0015] Further, the adaptive mechanism comprises a clamping ring clamped to the inner wall of the middle shell, the inside of the clamping ring is provided with a gear ring assembly, and the inside of the gear ring assembly is provided with a lubricating assembly.

[0016] Further, the gear ring assembly comprises a movable gear ring rotationally connected to the inner wall of the middle shell, a plurality of balls are rotationally connected between the movable gear ring and the snap ring, a clamping groove is formed on the side of the movable gear ring close to the push rod, and the inner wall of the clamping groove is slidably connected to the end of the plurality of push rods close to the clamping groove.

[0017] By adopting the above scheme, the snap ring and the gear ring assembly are arranged, in the initial stage of the operation of the speed reducer, the rotation speed of the driving shaft is low, the centrifugal force is small, the blocking effect of the push rod on the movable gear ring is limited, the movable gear ring can rotate in the inner wall of the snap ring, when the movable gear ring rotates, the tooth surfaces of the planetary gears and the movable gear ring are more fully contacted and ground, so that some specific tooth surfaces are prevented from bearing excessive load in the initial stage, the initial wear rate is reduced, as the rotation speed of the driving shaft increases, the centrifugal force increases, the push rod slides to the movable gear ring, the end of the push rod enters the clamping groove of the movable gear ring, and when a certain rotation speed is reached, the movable gear ring is clamped and fixed, so that the self-adaptive adjustment is realized.

[0018] Further, the lubricating assembly comprises an oil conveying groove formed in the inner wall of the middle shell and the snap ring, and an oil discharging groove formed in the inner wall of the snap ring and the base, oil plugs are fixedly installed at the ends of the oil conveying groove and the oil discharging groove away from the snap ring, a plurality of oil guiding plates are fixedly connected to the inner wall of the movable gear ring, and a plurality of oil passing holes are formed in the inner wall of the movable gear ring.

[0019] By adopting the above scheme, when the speed reducer is in a stopped state, the lubricating oil is concentrated below the inside of the middle shell, in the initial stage of the operation of the speed reducer, the movable gear ring rotates, the oil guiding plates on the inner wall of the movable gear ring bear the lubricating oil and rotate from the lower part of the inside of the middle shell to the upper part, and then the lubricating oil reaches each meshing position through the oil passing holes; when it is necessary to replace the lubricating oil, the oil plugs outside the oil discharging groove are opened in the stopped state of the speed reducer, and the oil is discharged; after the lubricating oil is discharged, the lubricating oil is injected through the oil conveying groove, the speed reducer is operated at a low speed, the movable gear ring rotates, the lubricating oil reaches each meshing position through the oil guiding plates and the oil passing holes on the inner wall of the movable gear ring, a more effective lubricating film is formed, the friction coefficient is reduced, the transmission efficiency and precision are improved, and the heating and noise are reduced.

[0020] Further, the output assembly comprises an output shaft rotationally connected to the inner wall of the rear end bearing seat, a planetary carrier is fixedly installed at the end of the output shaft close to the middle shell, a bearing wheel set is fixedly connected to the outer wall of the planetary carrier, a connecting bridge plate is fixedly connected to the inner wall of the bearing wheel set, and an oil guiding groove is formed in the outer wall of the connecting bridge plate.

[0021] Further, a plurality of planetary gears are rotationally connected to the inner wall of the bearing wheel set, and the plurality of planetary gears are in mesh with the movable gear ring.

[0022] Further, the end of the driving shaft close to the middle shell is fixedly provided with a sun gear, and the sun gear is engaged with a plurality of planetary gears.

[0023] By the output assembly, the sun gear at the end of the driving shaft is engaged with the plurality of planetary gears to transmit power to the planetary gears, the planetary gears are engaged with the movable gear ring, the planetary gears are installed in the bearing wheels of the planet carrier, the rotation of the planetary gears drives the planet carrier to rotate, the planet carrier is fixedly connected with the output shaft, so that the power is transmitted to the output shaft to realize speed reduction output, and meanwhile, the oil guide grooves on the outer wall of the connecting bridge plate also help the lubricating oil to flow and distribute to each planetary gear.

[0024] The present application has the following advantages:

[0025] By the driving mechanism, power is input into the speed reducer through the driving shaft, and when the driving shaft rotates, the plurality of stirring blades on the outer wall thereof rotate, the stirring blades are located in the water storage cavity of the fixed shell, the stirring blades rotate to generate centrifugal force on the liquid in the water storage cavity, the liquid is thrown to the edge of the water storage cavity under the action of the centrifugal force and enters the plurality of sliding cavities communicated with the water storage cavity, after the liquid enters the sliding cavities, the pressure receiving piece slides away from the water storage cavity to overcome the elastic force of the pressing spring, and the pressure receiving piece drives the push rod to slide in the sliding groove in the inner wall of the front end bearing seat, thereby achieving self-adaptive adjustment.

[0026] By the snap ring and gear ring assembly, at the initial stage of the operation of the speed reducer, the rotating speed of the driving shaft is low, the centrifugal force is small, and the blocking effect of the push rod on the movable gear ring is limited, so that the movable gear ring can rotate in the inner wall of the snap ring, when the movable gear ring rotates, the planetary gears and the tooth surfaces of the movable gear ring are more fully contacted and ground, thereby avoiding that some specific tooth surfaces bear excessive load at the initial stage to reduce the initial wear rate, and as the rotating speed of the driving shaft increases, the centrifugal force increases, the push rod slides to the movable gear ring, the end thereof enters the clamping groove of the movable gear ring, and when a certain rotating speed is reached, the movable gear ring is clamped to be fixed, thereby achieving self-adaptive adjustment.

[0027] By the lubricating assembly, when the speed reducer is in a stop state, the lubricating oil is concentrated below the inside of the middle shell, at the initial stage of the operation of the speed reducer, the movable gear ring rotates, the oil guide plate in the inner wall of the movable gear ring carries the lubricating oil to rotate from below to above in the inside of the middle shell, and then the lubricating oil reaches each meshing position through the oil hole; when it is necessary to replace the lubricating oil, the oil plug outside the oil discharge groove is opened in the stop state of the speed reducer to discharge the lubricating oil; after the lubricating oil is discharged, the lubricating oil is injected through the oil inlet groove, and the speed reducer is operated at a low speed, so that the movable gear ring rotates, the lubricating oil reaches each meshing position through the oil guide plate in the inner wall of the movable gear ring and the oil passing hole, an effective lubricating film is formed, the friction coefficient is reduced, the transmission efficiency and precision are improved, and the heating and noise are reduced. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 Fig. 1 is a schematic diagram of the overall structure of the present application;

[0029] Figure 2 Fig. 2 is a front view of the overall structure of the present application;

[0030] Figure 3 Fig. 3 is a schematic diagram of the structure at the housing assembly of the present application;

[0031] Figure 4 Fig. 4 is a schematic diagram of the structure at the driving mechanism of the present application;

[0032] Figure 5 Fig. 5 is a schematic diagram of the structure at the centrifugal extrusion assembly of the present application;

[0033] Figure 6 Fig. 6 is a schematic diagram of the structure at the push rod of the present application;

[0034] Figure 7 Fig. 7 is a schematic diagram of the structure at the output assembly of the present application;

[0035] Figure 8 Fig. 8 is a schematic diagram of the structure at the bearing wheel set of the present application;

[0036] Figure 9 Fig. 9 is a schematic diagram of the structure at the oil guide groove of the present application;

[0037] Figure 10 Fig. 10 is a schematic diagram of the structure at the self-adapting mechanism of the present application;

[0038] Figure 11 Fig. 11 is a schematic diagram of the structure at the gear ring assembly of the present application;

[0039] Figure 12 Fig. 12 is a schematic diagram of the structure at the lubricating assembly of the present application;

[0040] Figure 13 Fig. 13 is a schematic diagram of the structure at A in Fig. 1 of the present application. Figure 12 Fig. 14 is a schematic diagram of the structure at the enlarged portion of A in Fig. 1 of the present application.

[0041] Fig. 15 is a schematic diagram of the structure at B in Fig. 1 of the present application.

[0042] 1, base; 2, shell assembly; 21, front end bearing seat; 22, middle shell; 23, rear end bearing seat; 3, drive mechanism; 31, drive shaft; 32, stirring blade; 33, centrifugal extrusion assembly; 331, fixed shell; 332, water storage cavity; 333, sliding cavity; 334, pressure receiving piece; 335, extrusion spring; 336, push rod; 337, sliding groove; 34, sun gear; 4, output assembly; 41, output shaft; 42, planet carrier; 43, bearing wheel set; 44, planetary gear; 45, connecting bridge plate; 46, oil guide groove; 5, adaptive mechanism; 51, snap ring; 52, ring gear assembly; 521, movable ring gear; 522, ball; 523, clamping groove; 53, lubricating assembly; 531, oil plug; 532, oil delivery groove; 533, oil guide plate; 534, oil passage; 535, oil discharge groove. DETAILED DESCRIPTION

[0043] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0044] REFERENCE Figure 1 - Figure 13 A non-magnetic planetary reducer is provided, which comprises a base 1 and a shell assembly 2 arranged on the top of the base 1. The shell assembly 2 comprises a middle shell 22 fixedly arranged on the top of the base 1. The two ends of the middle shell 22 are respectively fixedly arranged with a front end bearing seat 21 and a rear end bearing seat 23. The inside of the front end bearing seat 21 is arranged with a drive mechanism 3. The inside of the middle shell 22 is arranged with an adaptive mechanism 5. The inside of the rear end bearing seat 23 is arranged with an output assembly 4.

[0045] REFERENCE Figure 3 - Figure 6 The drive mechanism 3 comprises a drive shaft 31 rotationally connected to the inner wall of the front end bearing seat 21. The outer wall of the drive shaft 31 is fixedly connected with a plurality of stirring blades 32 uniformly distributed. The outside of the plurality of stirring blades 32 is arranged with a centrifugal extrusion assembly 33.

[0046] The centrifugal extrusion assembly 33 comprises a fixed shell 331 fixedly connected to the inner wall of the front end bearing seat 21. The inner wall of the fixed shell 331 is rotationally connected with the outer wall of the drive shaft 31. The inner wall of the fixed shell 331 is provided with a water storage cavity 332. The plurality of stirring blades 32 are arranged inside the water storage cavity 332. The outer wall of the fixed shell 331 is fixedly connected with a plurality of sliding cavities 333 uniformly distributed. The plurality of sliding cavities 333 are in communication with the water storage cavity 332.

[0047] The inner wall of the sliding chamber 333 is slidably connected with a pressure receiving sheet 334, the pressure receiving sheet 334 is fixedly connected with an extrusion spring 335 between the inner wall of the sliding chamber 333 and the side away from the water storage chamber 332, the side away from the water storage chamber 332 of the pressure receiving sheet 334 is also fixedly connected with a push rod 336, the outer wall of the push rod 336 is slidably connected with the inner wall of the sliding chamber 333, the inner wall of the front end bearing seat 21 is provided with a plurality of sliding grooves 337 which are uniformly distributed, and the outer walls of the plurality of push rods 336 are slidably connected with the inner walls of the plurality of sliding grooves 337 respectively.

[0048] Specifically, the driving shaft 31 can rotate freely in the fixed shell 331, while the sealing between the two is ensured; a certain amount of liquid is stored in the water storage chamber 332, when the driving shaft 31 drives the stirring vane 32 to rotate, the stirring vane 32 will produce stirring and pushing action on the liquid in the water storage chamber 332, under the action of the centrifugal force generated by the rotation of the stirring vane 32, the liquid in the water storage chamber 332 can enter the sliding chamber 333 through the communication channel, when the liquid enters the sliding chamber 333 and exerts pressure on the pressure receiving sheet 334, the pressure receiving sheet 334 will slide away from the water storage chamber 332 against the elastic force of the extrusion spring 335; in the initial stage of the operation of the speed reducer, the driving shaft 31 has low speed and small centrifugal force, and the pressure of the liquid on the pressure receiving sheet 334 is also small, so the moving distance of the push rod 336 is limited; as the speed of the driving shaft 31 increases, the centrifugal force increases, and the pressure of the liquid on the pressure receiving sheet 334 increases, so the push rod 336 will move further to realize the corresponding adjustment action.

[0049] Through the driving mechanism 3 arranged, power is input into the speed reducer through the driving shaft 31, when the driving shaft 31 rotates, the plurality of stirring vanes 32 on the outer wall thereof rotates, the stirring vane 32 is located in the water storage chamber 332 of the fixed shell 331, the rotating stirring vane 32 generates centrifugal force on the liquid in the water storage chamber 332, the liquid is thrown to the edge of the water storage chamber 332 under the action of the centrifugal force, and enters the plurality of sliding chambers 333 which are communicated with the water storage chamber 332, after the liquid enters the sliding chamber 333, the pressure receiving sheet 334 is pushed to slide away from the water storage chamber 332 against the elastic force of the extrusion spring 335, the pressure receiving sheet 334 drives the push rod 336 to slide in the sliding grooves 337 in the inner wall of the front end bearing seat 21, thereby achieving the function of self-adaptive adjustment.

[0050] Reference Figure 7 - Figure 13The adaptive mechanism 5 comprises a clamping ring 51 clamped on the inner wall of the middle shell 22, the inside of the clamping ring 51 is provided with a gear ring assembly 52, the inside of the gear ring assembly 52 is provided with a lubricating assembly 53, the gear ring assembly 52 comprises a movable gear ring 521 rotationally connected to the inner wall of the middle shell 22, a plurality of rolling balls 522 are rotationally connected between the movable gear ring 521 and the clamping ring 51, a clamping groove 523 is formed on one side of the movable gear ring 521 close to the push rod 336, and the inner wall of the clamping groove 523 is slidably connected to one end of the plurality of push rods 336 close to the clamping groove 523.

[0051] Specifically, the clamping ring 51 plays an important role in positioning and supporting, ensuring the stable position of the adaptive mechanism 5 in the middle shell 22, avoiding shaking or displacement during the operation of the speed reducer; when the driving shaft 31 in the driving mechanism 3 rotates, the stirring vane 32 causes the liquid to generate a centrifugal force, pushing the pressure receiving sheet 334 and the push rod 336 to move, the push rod 336 will slide in the clamping groove 523, and as the rotation speed of the driving shaft 31 changes, the moving distance of the push rod 336 will also change accordingly, thereby adjusting the rotation state of the movable gear ring 521 according to the change of the rotation speed of the driving shaft 31.

[0052] By arranging the clamping ring 51 and the gear ring assembly 52, at the initial stage of the operation of the speed reducer, the rotation speed of the driving shaft 31 is low, the centrifugal force is small, and the blocking effect of the push rod 336 on the movable gear ring 521 is limited, so that the movable gear ring 521 can rotate on the inner wall of the clamping ring 51; when the movable gear ring 521 rotates, the planet gears 44 and the tooth surfaces of the movable gear ring 521 are in more sufficient contact and grinding, avoiding that some specific tooth surfaces bear excessive load at the initial stage, thereby reducing the initial wear rate; as the rotation speed of the driving shaft 31 increases, the centrifugal force increases, the push rod 336 slides towards the movable gear ring 521, and the end portion of the push rod 336 enters the clamping groove 523 of the movable gear ring 521; when the rotation speed reaches a certain value, the movable gear ring 521 is clamped and fixed, thereby realizing adaptive adjustment.

[0053] Referring to Figure 8 - Figure 13 The lubricating assembly 53 comprises an oil conveying groove 532 formed in the inner walls of the middle shell 22 and the clamping ring 51, and an oil discharging groove 535 formed in the inner walls of the clamping ring 51 and the base 1, the ends of the oil conveying groove 532 and the oil discharging groove 535 away from the clamping ring 51 are fixedly provided with oil plugs 531, the inner wall of the movable gear ring 521 is fixedly connected with a plurality of oil guiding plates 533 which are uniformly distributed, and the inner wall of the movable gear ring 521 is provided with a plurality of oil passing holes 534 which are uniformly distributed.

[0054] Specifically, the oil guide plate 533 can uniformly guide the lubricating oil to each part of the movable gear ring 521, so that the lubricating oil can play a more comprehensive and effective lubricating role; through the oil hole 534, the lubricating oil can penetrate into the cooperation gap between the movable gear ring 521 and other components, providing good lubrication for the planetary gear 44 and other components, reducing the friction and wear between them, and thus ensuring the stable operation of the speed reducer.

[0055] Through the lubricating assembly 53 arranged, when the speed reducer is in a stopped state, the lubricating oil is concentrated below the inside of the middle section housing 22, at the initial stage of the operation of the speed reducer, the movable gear ring 521 rotates, the oil guide plate 533 on the inner wall of the movable gear ring 521 carries the lubricating oil and rotates from the lower part to the upper part of the inside of the middle section housing 22, and then reaches each meshing part through the oil hole 534; when it is necessary to replace the lubricating oil, the oil plug 531 outside the oil discharge groove 535 is opened in the stopped state of the speed reducer, and the oil is discharged; after the lubricating oil is discharged, the lubricating oil is injected through the oil inlet groove 532, and the speed reducer is operated at a low speed, so that the movable gear ring 521 rotates, the lubricating oil reaches each meshing part through the oil guide plate 533 on the inner wall of the movable gear ring 521 and the oil hole 534, and a more effective lubricating film is formed, the friction coefficient is reduced, the transmission efficiency and precision are improved, and the heat generation and noise are reduced.

[0056] Referring to Figure 7 Figure 12 The output assembly 4 comprises an output shaft 41 rotatably connected to the inner wall of the rear end bearing seat 23, and the output shaft 41 is fixedly installed with a planet carrier 42 near one end of the middle section housing 22, the outer wall of the planet carrier 42 is fixedly connected with a bearing wheel set 43, the inner wall of the bearing wheel set 43 is fixedly connected with a connecting bridge plate 45, and the outer wall of the connecting bridge plate 45 is provided with an oil guide groove 46.

[0057] The inner wall of the bearing wheel set 43 is rotatably connected with a plurality of planet gears 44 uniformly distributed, the plurality of planet gears 44 are all engaged with the movable gear ring 521, and the one end of the driving shaft 31 near the middle section housing 22 is fixedly installed with a sun gear 34, and the sun gear 34 is engaged with the plurality of planet gears 44 respectively.

[0058] Through the output assembly 4 arranged, the sun gear 34 at the end of the driving shaft 31 is engaged with the plurality of planet gears 44, power is transmitted to the planet gears 44, the planet gears 44 are engaged with the movable gear ring 521, and at the same time, the planet gears 44 are installed in the bearing wheel set 43 of the planet carrier 42, the rotation of the planet gears 44 drives the planet carrier 42 to rotate, the planet carrier 42 is fixedly connected with the output shaft 41, so that power is transmitted to the output shaft 41, and speed reduction output is realized, and at the same time, the oil guide groove 46 on the outer wall of the connecting bridge plate 45 also helps the lubricating oil to flow and distribute to each planet gear 44.

[0059] ​In use, power is input into the speed reducer through the driving shaft 31, when the driving shaft 31 rotates, a plurality of stirring blades 32 on the outer wall of the driving shaft 31 rotate, the stirring blades 32 are located in the water storage cavity 332 of the fixed shell 331, and the rotating stirring blades 32 generate centrifugal force on the liquid in the water storage cavity 332.

[0060] The working principle of the application is as follows:

[0061] In operation, power is input into the speed reducer through the driving shaft 31, when the driving shaft 31 rotates, a plurality of stirring blades 32 on the outer wall of the driving shaft 31 rotate, the stirring blades 32 are located in the water storage cavity 332 of the fixed shell 331, and the rotating stirring blades 32 generate centrifugal force on the liquid in the water storage cavity 332.

[0062] The liquid is thrown to the edge of the water storage cavity 332 under the action of the centrifugal force and enters a plurality of sliding cavities 333 in communication with the water storage cavity 332, after the liquid enters the sliding cavities 333, the pressure receiving sheet 334 is pushed to slide in the direction away from the water storage cavity 332 against the elastic force of the extrusion spring 335, and the pressure receiving sheet 334 drives the push rod 336 to slide in the sliding groove 337 in the inner wall of the front end bearing seat 21.

[0063] At the initial stage of the operation of the speed reducer, the driving shaft 31 has a low rotating speed and a small centrifugal force, the push rod 336 has a limited blocking effect on the movable gear ring 521, and the movable gear ring 521 can rotate in the inner wall of the snap ring 51. When the movable gear ring 521 rotates, the planet gears 44 and the tooth surfaces of the movable gear ring 521 are in more sufficient contact and grinding, so that the certain tooth surfaces are prevented from bearing excessive load at the initial stage and the initial wear rate is reduced.

[0064] With the increase of the rotating speed of the driving shaft 31, the centrifugal force is increased, the push rod 336 slides to the movable gear ring 521, and the end portion of the push rod 336 enters the clamping groove 523 of the movable gear ring 521. When a certain rotating speed is reached, the movable gear ring 521 is clamped and fixed, and the self-adaptive adjustment is realized.

[0065] The sun gear 34 at the end portion of the driving shaft 31 is engaged with the plurality of planet gears 44, the power is transmitted to the planet gears 44, the planet gears 44 are engaged with the movable gear ring 521, the planet gears 44 are installed in the bearing wheel set 43 of the planet carrier 42, the rotation of the planet gears 44 drives the planet carrier 42 to rotate, the planet carrier 42 is fixedly connected with the output shaft 41, so that the power is transmitted to the output shaft 41, and the speed reduction output is realized.

[0066] When the speed reducer is in a stopped state, the lubricating oil is concentrated below the inside of the middle section shell 22. At the initial stage of the operation of the speed reducer, the movable gear ring 521 rotates, the oil guide plate 533 at the inner wall of the movable gear ring 521 carries the lubricating oil and rotates from the lower part to the upper part of the inside of the middle section shell 22, and then reaches each meshing position through the oil hole 534. Meanwhile, the oil guide groove 46 at the outer wall of the connecting bridge plate 45 also helps the lubricating oil to flow and be distributed to each planet gear 44.

[0067] When it is necessary to replace the lubricating oil, the oil plug 531 outside the oil discharge groove 535 is opened in the stopped state of the speed reducer, and the oil is discharged. After the lubricating oil is discharged, the lubricating oil is injected through the oil inlet groove 532, and the speed reducer is operated at a low speed, so that the movable gear ring 521 rotates, the lubricating oil reaches each meshing position through the oil guide plate 533 at the inner wall of the movable gear ring 521 and the oil passing hole 534, an effective lubricating film is formed, the friction coefficient is reduced, the transmission efficiency and precision are improved, and the heat generation and noise are reduced.

[0068] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application but not limit the present application. Although the present application is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, and all of them should be covered in the scope of the claims of the present application.

Claims

1. A non-magnetic planetary speed reducer comprising a base (1) and a housing assembly (2) arranged on top of the base (1), characterized in that: The shell assembly (2) includes a middle shell (22) fixedly installed on the top of the base (1), front end bearing seats (21) and rear end bearing seats (23) are fixedly installed at both ends of the middle shell (22), respectively, a driving mechanism (3) is arranged in the front end bearing seat (21), an adaptive mechanism (5) is arranged in the middle shell (22), and an output assembly (4) is arranged in the rear end bearing seat (23). The driving mechanism (3) comprises a driving shaft (31) rotatably connected to the inner wall of the front end bearing seat (21), a plurality of stirring blades (32) are uniformly arranged on the outer wall of the driving shaft (31), and centrifugal extrusion assemblies (33) are arranged on the outer walls of the stirring blades (32). The centrifugal extrusion assembly (33) comprises a fixed shell (331) fixedly connected to the inner wall of the front end bearing seat (21), the inner wall of the fixed shell (331) is rotatably connected with the outer wall of the driving shaft (31), a water storage cavity (332) is formed in the inner wall of the fixed shell (331), the stirring blades (32) are arranged in the water storage cavity (332), and a plurality of sliding cavities (333) are uniformly arranged on the outer wall of the fixed shell (331) and in communication with the water storage cavity (332).

2. The non-magnetic planetary speed reducer according to claim 1, characterized by: The inner wall of the sliding cavity (333) is slidably connected with a pressure receiving piece (334), the pressure receiving piece (334) is fixedly connected with an extrusion spring (335) between the inner wall of the sliding cavity (333) and the side, away from the water storage cavity (332), of the pressure receiving piece (334), and a push rod (336) is fixedly connected to the side, away from the water storage cavity (332), of the pressure receiving piece (334).

3. The non-magnetic planetary speed reducer according to claim 2, characterized by: The inner wall of the front end bearing seat (21) is provided with a plurality of sliding grooves (337) arranged uniformly, and the outer walls of the push rods (336) are slidably connected with the inner walls of the sliding grooves (337).

4. The non-magnetic planetary speed reducer according to claim 3, characterized by: The adaptive mechanism (5) comprises a clamping ring (51) clamped to the inner wall of the middle shell (22), a gear ring assembly (52) is arranged in the clamping ring (51), and a lubricating assembly (53) is arranged in the gear ring assembly (52).

5. The non-magnetic planetary speed reducer according to claim 4, characterized by: The gear ring assembly (52) comprises a movable gear ring (521) rotatably connected to the inner wall of the middle shell (22), a plurality of rolling balls (522) are rotatably connected between the movable gear ring (521) and the clamping ring (51), a clamping groove (523) is formed in the side, close to the push rod (336), of the movable gear ring (521), and the inner wall of the clamping groove (523) is slidably connected with the end, close to the clamping groove (523), of the push rod (336).

6. The non-magnetic planetary speed reducer of claim 5, wherein: The lubricating assembly (53) comprises an oil conveying groove (532) formed in the inner wall of the middle shell (22) and the snap ring (51), and an oil discharging groove (535) formed in the inner wall of the snap ring (51) and the base (1), the oil discharging groove (535) and the oil conveying groove (532) are fixedly installed with oil plugs (531) at the ends away from the snap ring (51), the inner wall of the movable gear ring (521) is fixedly connected with a plurality of oil guiding plates (533) uniformly distributed, and the inner wall of the movable gear ring (521) is formed with a plurality of oil passing holes (534) uniformly distributed.

7. The non-magnetic planetary speed reducer of claim 1, wherein: The output assembly (4) comprises an output shaft (41) rotatably connected to the inner wall of the rear end bearing seat (23), the output shaft (41) is fixedly installed with a planet carrier (42) at the end close to the middle shell (22), the outer wall of the planet carrier (42) is fixedly connected with a bearing wheel set (43), the inner wall of the bearing wheel set (43) is fixedly connected with a connecting bridge plate (45), and the outer wall of the connecting bridge plate (45) is formed with an oil guiding groove (46).

8. The non-magnetic planetary speed reducer of claim 7, wherein: The inner wall of the bearing wheel set (43) is rotatably connected with a plurality of planet gears (44) uniformly distributed, and the plurality of planet gears (44) are engaged with the movable gear ring (521).

9. The non-magnetic planetary reduction machine of claim 8, wherein: The driving shaft (31) is fixedly installed with a sun gear (34) at the end close to the middle shell (22), and the sun gear (34) is engaged with the plurality of planet gears (44) respectively.

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