CN118009025A - Planetary reducer with small speed ratio transmission - Google Patents
Planetary reducer with small speed ratio transmission Download PDFInfo
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- CN118009025A CN118009025A CN202410410863.XA CN202410410863A CN118009025A CN 118009025 A CN118009025 A CN 118009025A CN 202410410863 A CN202410410863 A CN 202410410863A CN 118009025 A CN118009025 A CN 118009025A
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- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 96
- 230000005540 biological transmission Effects 0.000 title claims abstract description 59
- 230000007246 mechanism Effects 0.000 claims abstract description 92
- 238000005461 lubrication Methods 0.000 claims abstract description 40
- 238000001514 detection method Methods 0.000 claims abstract description 38
- 239000010687 lubricating oil Substances 0.000 claims description 83
- 238000004891 communication Methods 0.000 claims description 29
- 230000001050 lubricating effect Effects 0.000 claims description 28
- 238000003825 pressing Methods 0.000 claims description 15
- 230000001681 protective effect Effects 0.000 claims description 11
- 239000000969 carrier Substances 0.000 claims description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 9
- 230000005484 gravity Effects 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 238000005299 abrasion Methods 0.000 description 6
- 230000001276 controlling effect Effects 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000003921 oil Substances 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000314 lubricant Substances 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000009751 slip forming Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
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Abstract
The invention discloses a planetary reducer with small speed ratio transmission, which comprises an output flange, a shell, a planetary transmission mechanism, a lubrication mechanism and a detection mechanism, wherein the output flange is fixedly connected with the shell, the planetary transmission mechanism is clamped with the shell, the lubrication mechanism is fixedly connected with the shell, the lubrication mechanism is used for guaranteeing lubrication in the reducer, the detection mechanism is fixedly connected with the shell, a built-in angle sensor of the detection mechanism is used for detecting the position of the planetary reducer, the detection mechanism is electrically connected with the lubrication mechanism, the output flange is used for fixing the planetary reducer to an installation position to provide power for a machine and is fixed on the shell through bolts, the shell is used for providing protection for the internal planetary transmission mechanism, the planetary transmission mechanism is externally connected with a power source, and the planetary transmission mechanism plays a role of matching rotation speed and transmitting torque between the power source and an executing mechanism to convert high speed into low-speed rotation.
Description
Technical Field
The invention relates to the technical field of speed reducers, in particular to a planetary speed reducer with small-speed-ratio transmission.
Background
The planetary reducer is widely applied to various fields such as mechanical arms, machine tools, textile machinery, packaging equipment, printing machinery, automatic production lines and the like, is an industrial product with wide application, and is similar to planetary revolution around the sun in the rotating process by rotating a planetary gear around a sun, so that the planetary reducer is called as a planetary gear reducer, and lubricating oil needs to be filled in the use process of the reducer, so that the gear is prevented from being worn, and the temperature is reduced.
However, when the planetary reducer is mounted on a movable machine such as a mechanical arm, the reducer can move along with the mechanical arm, so that the position of the reducer is changed continuously, lubricating oil in the reducer can flow to a low position under the influence of self gravity, so that a high-position part cannot be lubricated, and gear abrasion in the reducer is easy to cause.
Disclosure of Invention
The invention aims to provide a planetary reducer with small-speed-ratio transmission so as to solve the problems in the background art.
In order to solve the technical problems, the invention provides the following technical scheme: the planetary reducer comprises an output flange, a shell, a planetary transmission mechanism, a lubrication mechanism and a detection mechanism, wherein the output flange is fixedly connected with the shell, the planetary transmission mechanism is clamped with the shell, the lubrication mechanism is fixedly connected with the shell, the lubrication mechanism is used for guaranteeing lubrication in the reducer, the detection mechanism is fixedly connected with the shell, an angle sensor is arranged in the detection mechanism and used for detecting the position of the planetary reducer, and the detection mechanism is electrically connected with the lubrication mechanism.
The output flange is used for fixing the planetary reducer to the mounted position, power is provided for the machine, and fix on the casing through the bolt, the casing is used for providing the protection for inside planetary transmission, planetary transmission external power supply, play the effect of matching rotational speed and transmission torque between power supply and actuating mechanism, turn into the low-speed rotation with high-speed, lubrication in the course of the work in order to guarantee the speed reducer, transport the inside lubricating oil of speed reducer through lubricating mechanism, make the inside automatic cycle of lubricating oil at the speed reducer, prevent that planetary transmission is too high in the course of the operation temperature, the speed reducer can follow the organism motion in the course of the work, thereby make the position of speed reducer change, the relative position of speed reducer can be measured to the angle sensor in the detection mechanism, and control the operation of lubricating mechanism with this, thereby guarantee lubrication effect.
Further, the planetary transmission mechanism comprises an input shaft, an output shaft, a first bearing and a second bearing, a transmission assembly is connected between the input shaft and the output shaft, the first bearing is rotationally connected with the input shaft, the first bearing is in clamping connection with the shell, the second bearing is in clamping connection with the output flange, the second bearing is rotationally connected with the output shaft, and the input shaft is externally connected with a power source.
The input shaft is externally connected with a power source, power is transmitted to the transmission assembly, the rotation speed of the transmission assembly can be regulated, power is transmitted to the output shaft, and the first bearing and the second bearing are respectively fixed on the shell and the output flange, so that support is provided for the transmission assembly, and stable transmission of the transmission assembly is ensured.
Further, the transmission assembly comprises a planet carrier and a planet gear, the planet gear is rotationally connected with the planet carrier, three groups of planet carriers and the planet gear are arranged between an input shaft and an output shaft, tooth surfaces are arranged on the machine shell, the planet gear is meshed with the tooth surfaces, accommodating grooves are formed in the planet carrier, a plurality of accommodating grooves are circumferentially arranged along the axis of the planet carrier, and power magnets are arranged in the plurality of accommodating grooves.
The power transmitted by the input shaft is converted through the combination of the three groups of planetary carriers and the planetary gears, the rotating speed is gradually reduced, the tooth surface on the shell provides a rotating path for the planetary gears, the rotating speed of the output shaft of the speed reducer is lower than that of the input shaft, so that the rotating speed of the planetary carrier close to one end of the input shaft is faster than that of the planetary carrier close to one end of the output shaft, the abrasion aggravation and heat accumulation are caused by the rotating speed, lubrication at a high rotating speed position is required to be ensured, and the rotating of the planetary carrier is transmitted to the lubricating mechanism through a power magnet on the planetary carrier in a non-contact magnetic transmission mode to provide power for the lubricating mechanism.
Further, the lubrication mechanism comprises a guide ring, a connecting pipeline and a suction assembly, the guide ring is fixedly connected with the shell, the guide ring is provided with two groups, one group is close to one end of the input shaft, the other group is close to one end of the output shaft, the connecting pipeline is communicated with the guide ring, the suction assembly is communicated with the connecting pipeline and is used for conveying lubricating oil in the speed reducer, and the position of the suction assembly corresponds to the planet carrier.
The inside lubricating oil of speed reducer can gather in low level end under the influence of self gravity, just lead to the partial lubrication of high level not enough, damage the speed reducer easily, and the speed reducer is when following the organism motion, the position of speed reducer can change, make inside lubricating oil position constantly change, it is difficult to lubricate fully, communicate the upper and lower end of casing through two sets of water conservancy diversion rings and connecting tube, the inside lubricating oil of speed reducer is transported to the rethread suction component, make lubricating oil form circulation flow in the speed reducer, thereby guarantee the lubrication in the speed reducer fully, provide power for suction component through the power magnet on the planet carrier, drive lubricating oil flows in water conservancy diversion ring and connecting tube.
Further, an annular flow passage is arranged in the flow guide ring, a flow guide hole is arranged on the shell, the annular flow passage is communicated with the flow guide hole, the connecting pipeline is communicated with the annular flow passage, and a plurality of flow guide holes are arranged along the circumferential direction of the annular flow passage.
The suction assembly is started, lubricating oil is pumped into one group of annular flow passages through the diversion holes on the shell, and the pumped lubricating oil is injected into the other group of annular flow passages through the connecting pipeline, so that the lubricating oil flows into the shell again through the diversion holes, the lubricating oil is circulated in the shell, the lubricating effect is improved, and the circulation rate of the lubricating oil is improved by arranging a plurality of diversion holes.
Further, the suction assembly comprises a protective shell, a first movable piece and a second movable piece, wherein the protective shell is fixedly connected with the shell, a communication groove and a movable groove are formed in the protective shell, the first movable piece is slidably connected with the communication groove, the second movable piece is slidably connected with the movable groove, the communication groove is communicated with the connecting pipeline, the movable groove is communicated with the communication groove, two groups of first movable pieces are arranged in the communication groove, and the first movable pieces are used for controlling the opening and closing of the communication groove.
The protective housing is fixed and provides stable support for the suction subassembly on the casing, and first moving part is fixed in the intercommunication inslot for the flow direction of the lubricating oil of control intercommunication inslot, and the second moving part can slide from top to bottom in the movable inslot under power magnet's effect to constantly form the negative pressure in the movable inslot, thereby transport lubricating oil to the other end from the one end of connecting tube, make lubricating oil form the circulation in the speed reducer inside.
Further, the first movable piece comprises a fixed ring, a pressing head, a pressing spring and a communicating ring, wherein the fixed ring and the communicating ring are fixedly connected with the inner wall of the communicating groove, the pressing head is abutted with the fixed ring, the pressing spring is sleeved between the pressing head and the communicating ring, and a plurality of holes are formed in the communicating ring.
Under the initial condition, the compressing head compresses tightly under the elasticity effect of hold-down spring at the surface of solid fixed ring, the intercommunication groove is closed state this moment, when the second movable part moves down along the movable groove, the communicating part volume of movable groove and intercommunication groove can increase, thereby produce negative pressure, make the compressing head of advance oil end one side overcome the elasticity of hold-down spring, lubricating oil flows into the intercommunication inslot through the hole on the intercommunication ring, when the second movable part moves up, make the pressure increase in the intercommunication groove, make the compressing head of play oil end one side overcome the elasticity of hold-down spring, lubricating oil inflow connecting tube, consequently, when the continuous reciprocating motion of second movable part in the movable groove, lubricating oil can be constantly drawn into and extrude the intercommunication groove, thereby form the circulation of lubricating oil, lubricating effect has been promoted.
Further, the second movable piece comprises a movable head and a movable spring, the movable head is in sliding connection with the movable groove, one end of the movable spring is in fastening connection with the movable head, the other end of the movable spring is in fastening connection with the bottom surface of the movable groove, an electromagnet is arranged in the movable head, and the opposite surface of the electromagnet and the power magnet is a heteronymous magnetic pole.
Because the suction component is corresponding with the position of the planet carrier, when the planet carrier rotates, the power magnet is continuously close to the electromagnet in the movable head, when the electromagnet is electrified, because the opposite surface of the electromagnet and the power magnet is a different-name magnetic pole, according to the opposite attraction principle, when the power magnet is close to the movable head, the movable head is attracted by the power magnet, thereby overcoming the elasticity of the movable spring, the movable head moves downwards along the movable groove to suck lubricating oil into the communication groove, when the power magnet is far away from the movable head, the attractive force between the movable head and the movable head becomes smaller, the movable head moves upwards along the movable groove under the elasticity of the movable spring, so that the sucked lubricating oil is extruded, and when the power magnet rotates under the drive of the planet carrier, the movable head can be driven to continuously reciprocate along the movable groove, so that the lubricating oil is driven to continuously circulate, the lubricating effect is improved, and the planet carrier rotates faster, and the lubricating oil circulates faster.
Further, the lubrication mechanism is provided with two groups, the directions of lubricating oil in the two groups of lubrication mechanisms are opposite, the suction component in one group of lubrication mechanism corresponds to the position of the planet carrier at the high speed end of the speed reducer, and the suction component in the other group of lubrication mechanism corresponds to the position of the planet carrier at the low speed end of the speed reducer.
When the high-speed end of the speed reducer is positioned at a high position, lubricating oil is accumulated at a low-speed end positioned at a low position under the influence of self gravity, the high-speed end cannot be lubricated, the rotating speed of the high-speed end is high, the temperature is easy to rise, the circulation of the lubricating oil needs to be accelerated, at the moment, a suction assembly positioned at the high-speed end is started to suck the lubricating oil from the low position to the high position for circulation, and the speed of the suction assembly for conveying the lubricating oil is high because the rotating speed of a planet carrier at the high-speed end is high;
Further, when the low-speed end of the speed reducer is located at a high position, lubricating oil is collected at a high-speed end located at a low position under the influence of self gravity, the low-speed end cannot be lubricated, the rotating speed of the low-speed end is low, the circulating speed of the lubricating oil does not need to be too high, at the moment, a suction assembly located at the low-speed end is started to suck the lubricating oil from the low position to the high position for circulation, and the speed of the suction assembly for conveying the lubricating oil is low because the rotating speed of a planet carrier at the low-speed end is low;
The lubricating mechanism can start the pumping components at different positions according to different positions of the speed reducer, so that the circulation speed of lubricating oil is regulated, the circulation speed of the lubricating oil towards the high-speed end is high, the circulation speed towards the low-speed end is low, the high-speed end and the low-speed end can be properly lubricated, and the abrasion of the speed reducer is reduced.
Further, an angle sensor in the detection mechanism is externally connected with a detection power supply, the detection power supply and the angle sensor form a detection circuit, the detection circuit is connected with the electromagnetic iron, and the detection circuit is used for controlling the opening and closing of the electromagnet.
The detection mechanism judges the position of the speed reducer through the angle sensor, then transmits a signal to the detection circuit, and controls the opening and closing of the electromagnet through the detection circuit, thereby controlling the opening and closing of the suction assembly.
Compared with the prior art, the invention has the following beneficial effects: the upper end and the lower end of the shell are communicated through the two groups of guide rings and the connecting pipeline, and lubricating oil in the speed reducer is transported through the suction assembly, so that the lubricating oil forms circulating flow in the speed reducer, and the lubrication in the speed reducer is ensured to be sufficient; the power magnet is arranged on the planet carrier, and the position of the suction component is set to be corresponding to the position of the planet carrier, so that when the planet carrier rotates, the power magnet is continuously close to the electromagnet in the movable head, when the electromagnet is electrified, the movable head is attracted by the power magnet according to the opposite attraction principle when the power magnet is close to the movable head, the elastic force of the movable spring is overcome, lubricating oil is sucked into the communication groove along the movable groove, when the power magnet is far away from the movable head, the attractive force between the movable head and the movable head is reduced, and the movable head moves upwards along the movable groove under the elastic force of the movable spring, so that the sucked lubricating oil is pressed out, and when the power magnet rotates under the driving of the planet carrier, the movable head can be driven to continuously reciprocate along the movable groove without additional power, and the suction component is driven to act through magnetic force; the detection mechanism judges the position of the speed reducer through the angle sensor, and then transmits a signal to the detection circuit, and the detection circuit controls the electromagnet to be opened and closed, so that the lubrication mechanism can start the suction assemblies at different positions according to different positions of the speed reducer, thereby adjusting the circulation speed of lubricating oil, leading the circulation speed to be high, leading the circulation speed to be low, leading the high-speed end and the low-speed end to be properly lubricated, and reducing the abrasion of the speed reducer.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is a schematic general construction of the present invention;
FIG. 2 is an exploded view of the present invention;
FIG. 3 is a schematic view of the planetary transmission mechanism of the present invention;
FIG. 4 is a schematic illustration of a transmission assembly;
FIG. 5 is a schematic structural view of the housing;
FIG. 6 is a partial A-direction enlargement of FIG. 5;
FIG. 7 is a schematic view of a deflector ring structure;
FIG. 8 is a schematic view of a suction assembly configuration;
FIG. 9 is a schematic diagram of a planet carrier;
FIG. 10 is a schematic diagram of the driving of a powered magnet;
FIG. 11 is a schematic flow diagram of a lubrication mechanism;
In the figure: 1-output flange, 2-casing, 21-tooth face, 22-water diversion hole, 3-planetary transmission mechanism, 31-input shaft, 32-output shaft, 33-first bearing, 34-second bearing, 35-transmission component, 351-planet carrier, 352-planetary gear, 36-power magnet, 4-lubrication mechanism, 41-water diversion ring, 411-annular runner, 42-connecting pipeline, 43-suction component, 431-protective shell, 4311-communication groove, 4312-movable groove, 432-first movable piece, 4321-fixed ring, 4322-compression head, 4323-compression spring, 4324-communication ring, 433-second movable piece, 4331-movable head, 4332-movable spring, 5-detection mechanism.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention provides the technical scheme that:
The planetary reducer comprises an output flange 1, a machine shell 2, a planetary transmission mechanism 3, a lubricating mechanism 4 and a detecting mechanism 5, wherein the output flange 1 is fixedly connected with the machine shell 2, the planetary transmission mechanism 3 is connected with the machine shell 2 in a clamping mode, the lubricating mechanism 4 is fixedly connected with the machine shell 2, the lubricating mechanism 4 is used for guaranteeing lubrication in the reducer, the detecting mechanism 5 is fixedly connected with the machine shell 2, an angle sensor is arranged in the detecting mechanism 5 and used for detecting the position of the planetary reducer, and the detecting mechanism 5 is electrically connected with the lubricating mechanism 4.
The output flange 1 is used for fixing a planetary reducer to an installation position, providing power for a machine, and is fixed on the casing 2 through bolts, the casing 2 is used for providing protection for a planetary transmission mechanism 3 in the interior, the planetary transmission mechanism 3 is externally connected with a power source, the function of matching rotating speed and transmitting torque is achieved between the power source and an actuating mechanism, high speed is converted into low speed rotation, lubricating oil in the interior of the reducer is transported through the lubricating mechanism 4 for guaranteeing lubrication of the reducer in the working process, the lubricating oil is automatically circulated in the interior of the reducer, the planetary transmission mechanism 3 is prevented from being excessively high in temperature in the working process, the reducer can follow the machine body in the working process, the position of the reducer is changed, the relative position of the reducer can be measured by an angle sensor in the detecting mechanism 5, and the operation of the lubricating mechanism 4 is controlled according to the relative position, so that the lubrication effect is guaranteed.
The planetary transmission mechanism 3 comprises an input shaft 31, an output shaft 32, a first bearing 33 and a second bearing 34, a transmission assembly 35 is connected between the input shaft 31 and the output shaft 32, the first bearing 33 is rotationally connected with the input shaft 31, the first bearing 33 is clamped with the casing 2, the second bearing 34 is clamped with the output flange 1, the second bearing 34 is rotationally connected with the output shaft 32, and the input shaft 31 is externally connected with a power source.
The input shaft 31 is externally connected with a power source, power is transmitted to the transmission assembly 35, the rotation speed of the transmission assembly 35 can be adjusted, the power is transmitted to the output shaft 32, the first bearing 33 and the second bearing 34 are respectively fixed on the shell 2 and the output flange 1, support is provided for the transmission assembly 35, and stable transmission of the transmission assembly 35 is ensured.
The transmission assembly 35 comprises a planet carrier 351 and a planet gear 352, the planet gear 352 is rotationally connected with the planet carrier 351, three groups of planet gears are arranged between the input shaft 31 and the output shaft 32 by the planet carrier 351 and the planet gear 352, the machine shell 2 is provided with a tooth surface 21, the planet gear 352 is meshed with the tooth surface 21, the planet carrier 351 is provided with a containing groove, a plurality of containing grooves are circumferentially arranged along the axis of the planet carrier 351, and the containing grooves are internally provided with power magnets 36.
The power transmitted by the input shaft is converted through the combination of the three groups of planetary carriers 351 and the planetary gears 352, the rotation speed is gradually reduced, the tooth surface 21 on the shell 2 provides a rotation path for the planetary gears 352, because the rotation speed of the output shaft 32 of the speed reducer is lower than that of the input shaft 31, the rotation speed of the planetary carrier 351 close to one end of the input shaft 31 is faster than that of the planetary carrier 351 close to one end of the output shaft 32, the wear is increased and heat accumulation is necessarily caused by the high rotation speed, lubrication at a high rotation speed position is ensured, and the rotation of the planetary carrier 351 is transmitted to the lubrication mechanism 4 through a power magnet 36 on the planetary carrier 351 in a non-contact magnetic transmission mode to provide power for the lubrication mechanism 4.
The lubrication mechanism 4 comprises a guide ring 41, a connecting pipeline 42 and a suction assembly 43, wherein the guide ring 41 is fixedly connected with the machine shell 2, the guide ring 41 is provided with two groups, one group is close to one end of the input shaft 31, the other group is close to one end of the output shaft 32, the connecting pipeline 42 is communicated with the guide ring 41, the suction assembly 43 is communicated with the connecting pipeline 42, the suction assembly 43 is used for conveying lubricating oil in a speed reducer, and the position of the suction assembly 43 corresponds to the planet carrier 351.
The inside lubricating oil of speed reducer can gather in low level end under the influence of self gravity, just lead to the partial lubrication of high level not enough, damage the speed reducer easily, and the speed reducer is when following the organism motion, the position of speed reducer can change, make inside lubricating oil position constantly change, it is difficult to lubricate fully, communicate the upper and lower end of casing 2 through two sets of water conservancy diversion rings 41 and connecting tube 42, the inside lubricating oil of speed reducer is transported to rethread suction component 43, make lubricating oil form circulation flow in the speed reducer, thereby guarantee that lubrication in the speed reducer is abundant, power magnet 36 on the planet carrier 351 provides power for suction component 43, drive lubricating oil flows in water conservancy diversion ring 41 and connecting tube 42.
The guide ring 41 is internally provided with an annular flow passage 411, the casing 2 is provided with guide holes 22, the annular flow passage 411 is communicated with the guide holes 22, the connecting pipeline 42 is communicated with the annular flow passage 411, and the guide holes 22 are arranged in a plurality along the circumferential direction of the annular flow passage 411.
The suction assembly 43 is started to suck lubricating oil into one group of annular flow passages 411 through the diversion holes 22 on the casing 2, and then the sucked lubricating oil is injected into the other group of annular flow passages 411 through the connecting pipeline 42, so that the lubricating oil flows into the casing 2 again through the diversion holes 22, the lubricating oil is circulated in the casing 2, the lubricating effect is improved, and the circulation rate of the lubricating oil is improved by arranging a plurality of diversion holes 22.
The suction assembly 43 comprises a protective shell 431, a first movable part 432 and a second movable part 433, wherein the protective shell 431 is fixedly connected with the machine shell 2, the protective shell 431 is provided with a communication groove 4311 and a movable groove 4312, the first movable part 432 is slidably connected with the communication groove 4311, the second movable part 433 is slidably connected with the movable groove 4312, the communication groove 4311 is communicated with the connecting pipeline 42, the movable groove 4312 is communicated with the communication groove 4311, two groups of first movable parts 432 are arranged in the communication groove 4311, and the first movable parts 432 are used for controlling the opening and closing of the communication groove 4311.
The protective housing 431 is fixed on the casing 2 to provide stable support for the suction assembly 43, the first movable member 432 is fixed in the communication slot 4311 to control the flow direction of the lubricant in the communication slot 4311, and the second movable member 433 can slide up and down in the movable slot 4312 under the action of the power magnet 36, so that negative pressure is continuously formed in the movable slot 4312, and the lubricant is transported from one end to the other end of the connecting pipe 42, so that the lubricant circulates inside the speed reducer.
The first movable part 432 includes a fixed ring 4321, a pressing head 4322, a pressing spring 4323, and a communication ring 4324, wherein the fixed ring 4321 and the communication ring 4324 are tightly connected with the inner wall of the communication groove 4311, the pressing head 4322 is abutted to the fixed ring 4321, the pressing spring 4323 is sleeved between the pressing head 4322 and the communication ring 4324, and a plurality of holes are formed in the communication ring 4324.
In the initial state, the compressing head 4322 is compressed on the surface of the fixed ring 4321 under the elastic force of the compressing spring 4323, at this time, the communicating groove 4311 is in a closed state, when the second movable part 433 moves down along the movable groove 4312, the communicating part between the movable groove 4312 and the communicating groove 4311 is increased in volume, thereby generating negative pressure, so that the compressing head 4322 at one side of the oil inlet end overcomes the elastic force of the compressing spring 4323, the lubricating oil flows into the communicating groove 4311 through the hole on the communicating ring 4324, when the second movable part 433 moves up, the pressure in the communicating groove 4311 is increased, so that the compressing head 4322 at one side of the oil outlet end overcomes the elastic force of the compressing spring 4323, and the lubricating oil flows into the connecting pipeline 42, therefore, when the second movable part 433 moves continuously in the movable groove 4312, the lubricating oil is pumped into and extruded out of the communicating groove 4311, thereby forming the circulation of the lubricating oil, and promoting the lubricating effect.
The second movable member 433 includes a movable head 4331 and a movable spring 4332, the movable head 4331 is slidably connected with the movable slot 4312, one end of the movable spring 4332 is fixedly connected with the movable head 4331, the other end of the movable spring 4332 is fixedly connected with the bottom surface of the movable slot 4312, an electromagnet is arranged in the movable head 4331, and the opposite surface of the electromagnet and the power magnet 36 is a magnetic pole with different names.
Because the position of the suction component 43 corresponds to the position of the planet carrier 351, when the planet carrier 351 rotates, the power magnet 36 is continuously close to the electromagnet in the movable head 4331, when the electromagnet is electrified, because the opposite surface of the electromagnet to the power magnet 36 is a different-name magnetic pole, according to the opposite attraction principle, when the power magnet 36 is close to the movable head 4331, the movable head 4331 is attracted by the power magnet 36, so that the elastic force of the movable spring 4332 is overcome, the movable head 4312 moves downwards to suck lubricating oil into the communicating groove 4311, when the power magnet 36 is far away from the movable head 4331, the attractive force between the movable head 4331 is reduced, the movable head 4331 moves upwards along the movable groove 4312 under the elastic force of the movable spring 4332, so that sucked lubricating oil is extruded, and when the power magnet 36 is driven to rotate by the planet carrier 351, the movable head 4331 can be driven to continuously reciprocate along the movable groove 4312, so that the lubricating effect is improved, and the lubricating oil circulates faster the planet carrier 351 rotates.
The lubrication mechanism 4 is provided with two groups, the directions of lubricating oil in the two groups of lubrication mechanisms 4 are opposite, the suction component 43 in one group of lubrication mechanism 4 corresponds to the position of the planet carrier 351 at the high speed end of the speed reducer, and the suction component 43 in the other group of lubrication mechanism 4 corresponds to the position of the planet carrier 351 at the low speed end of the speed reducer.
When the high-speed end of the speed reducer is positioned at a high position, lubricating oil is accumulated at a low-speed end positioned at a low position under the influence of self gravity, the high-speed end cannot be lubricated, the rotating speed of the high-speed end is high, the temperature is easy to rise, the circulation of the lubricating oil needs to be accelerated, at the moment, the suction assembly 43 positioned at the high-speed end is started to suck the lubricating oil from the low position to the high position for circulation, and the speed of conveying the lubricating oil by the suction assembly 43 is high because the planet carrier 351 at the high-speed end rotates at a high speed;
When the low-speed end of the speed reducer is positioned at a high position, lubricating oil is accumulated at a high-speed end positioned at the low position under the influence of self gravity, the low-speed end cannot be lubricated, the rotating speed of the low-speed end is low, the circulating speed of the lubricating oil does not need to be too high, at the moment, the suction assembly 43 positioned at the low-speed end is started to suck the lubricating oil from the low position to the high position for circulation, and the speed of the suction assembly 43 for conveying the lubricating oil is low because the rotating speed of the planet carrier 351 at the low-speed end is low;
The lubrication mechanism 4 can start the pumping components 43 at different positions according to different positions of the speed reducer, so that the circulation speed of the lubricating oil is regulated, the circulation speed to the high-speed end is high, the circulation speed to the low-speed end is low, the high-speed end and the low-speed end can be properly lubricated, and the abrasion of the speed reducer is reduced.
The angle sensor in the detection mechanism 5 is externally connected with a detection power supply, the detection power supply and the angle sensor form a detection circuit, the detection circuit is connected with the electromagnetic iron, and the detection circuit is used for controlling the opening and closing of the electromagnet.
The detecting mechanism 5 judges the position of the speed reducer through the angle sensor, then transmits a signal to the detecting circuit, and controls the opening and closing of the electromagnet through the detecting circuit, thereby controlling the opening and closing of the suction assembly 43.
The working principle of the invention is as follows: the input shaft 31 is externally connected with a power source, power is transmitted to the transmission assembly 35, the transmission assembly 35 can regulate the rotating speed, and power is transmitted to the output shaft 32, the power transmitted by the input shaft is converted through the combination of the three groups of planetary carriers 351 and the planetary gears 352, the rotating speed is gradually reduced, the suction assembly 43 is started, lubricating oil is pumped into one group of annular flow passages 411 through the diversion holes 22 on the shell 2, and the pumped lubricating oil is injected into the other group of annular flow passages 411 through the connecting pipeline 42, so that the lubricating oil flows into the shell 2 again through the diversion holes 22, the lubricating oil is circulated in the shell 2, the lubricating effect is improved, because the positions of the suction assembly 43 and the planetary carriers 351 are corresponding, when the planetary carriers 351 rotate, the power magnet 36 is continuously close to the electromagnet in the movable head 4331, when the electromagnet is electrified, because the opposite surface of the electromagnet and the power magnet 36 is a heteronymous magnetic pole, according to the opposite attraction principle, when the power magnet 36 approaches the movable head 4331, the movable head 4331 is attracted by the power magnet 36, so that the elasticity of the movable spring 4332 is overcome, the movable head 4331 moves downwards along the movable groove 4312 to pump lubricating oil into the communicating groove 4311, when the power magnet 36 is far away from the movable head 4331, the attractive force between the movable head 4331 becomes smaller, the movable head 4331 moves upwards along the movable groove 4312 under the action of the elasticity of the movable spring 4332 to push out the sucked lubricating oil, therefore, when the power magnet 36 rotates under the driving of the planet carrier 351, the movable head 4331 can be driven to continuously reciprocate along the movable groove 4312, the lubricating oil is driven to continuously circulate, the lubricating effect is improved, the faster the planet carrier 351 rotates, the lubricating oil circulates faster, the lubricating mechanism 4 can start the sucking components 43 at different positions according to different positions of the speed reducer, therefore, the circulation speed of the lubricating oil is regulated, the circulation speed to the high-speed end is high, the circulation speed to the low-speed end is low, the high-speed end and the low-speed end can be properly lubricated, and the abrasion of the speed reducer is reduced.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a planetary reducer with little speed ratio transmission which characterized in that: the planetary reducer comprises an output flange (1), a casing (2), a planetary transmission mechanism (3), a lubricating mechanism (4) and a detection mechanism (5), wherein the output flange (1) is fixedly connected with the casing (2), the planetary transmission mechanism (3) is connected with the casing (2) in a clamping mode, the lubricating mechanism (4) is fixedly connected with the casing (2), the lubricating mechanism (4) is used for guaranteeing lubrication in the reducer, the detection mechanism (5) is fixedly connected with the casing (2), a built-in angle sensor of the detection mechanism (5) is used for detecting the position of the planetary reducer, and the detection mechanism (5) is electrically connected with the lubricating mechanism (4).
2. The planetary reducer with small speed ratio transmission according to claim 1, characterized in that: the planetary transmission mechanism (3) comprises an input shaft (31), an output shaft (32), a first bearing (33) and a second bearing (34), a transmission assembly (35) is connected between the input shaft (31) and the output shaft (32), the first bearing (33) is rotationally connected with the input shaft (31), the first bearing (33) is clamped with the casing (2), the second bearing (34) is clamped with the output flange (1), the second bearing (34) is rotationally connected with the output shaft (32), and the input shaft (31) is externally connected with a power source.
3. A planetary reducer with small speed ratio transmission according to claim 2, characterized in that: the transmission assembly (35) comprises a planet carrier (351) and a planet gear (352), the planet gear (352) is rotationally connected with the planet carrier (351), three groups of planet carriers (351) and planet gears (352) are arranged between an input shaft (31) and an output shaft (32), tooth surfaces (21) are arranged on the machine shell (2), the planet gears (352) are meshed with the tooth surfaces (21), accommodating grooves are formed in the planet carrier (351), a plurality of planet gears are circumferentially arranged along the axle center of the planet carrier (351), and power magnets (36) are arranged in the accommodating grooves.
4. A planetary reducer with small speed ratio transmission according to claim 3, characterized in that: the lubrication mechanism (4) comprises a guide ring (41), a connecting pipeline (42) and a suction assembly (43), wherein the guide ring (41) is fixedly connected with the casing (2), two groups of guide rings (41) are arranged, one group of guide rings is close to one end of the input shaft (31), the other group of guide rings is close to one end of the output shaft (32), the connecting pipeline (42) is communicated with the guide ring (41), the suction assembly (43) is communicated with the connecting pipeline (42), the suction assembly (43) is used for conveying lubricating oil in the speed reducer, and the position of the suction assembly (43) corresponds to the planet carrier (351).
5. The planetary reducer with small speed ratio transmission of claim 4, wherein: an annular flow passage (411) is arranged in the guide ring (41), a guide hole (22) is arranged on the casing (2), the annular flow passage (411) is communicated with the guide hole (22), the connecting pipeline (42) is communicated with the annular flow passage (411), and a plurality of guide holes (22) are arranged along the circumferential direction of the annular flow passage (411).
6. The planetary reducer with small speed ratio transmission of claim 5, wherein: the suction assembly (43) comprises a protective shell (431), a first movable part (432) and a second movable part (433), wherein the protective shell (431) is fixedly connected with a machine shell (2), a communication groove (4311) and a movable groove (4312) are formed in the protective shell (431), the first movable part (432) is slidably connected with the communication groove (4311), the second movable part (433) is slidably connected with the movable groove (4312), the communication groove (4311) is communicated with a connecting pipeline (42), the movable groove (4312) is communicated with the communication groove (4311), two groups of first movable parts (432) are arranged in the communication groove (4311), and the first movable parts (432) are used for controlling the opening and closing of the communication groove (4311).
7. The planetary reducer with small speed ratio transmission of claim 6, wherein: the first movable part (432) comprises a fixed ring (4321), a pressing head (4322), a pressing spring (4323) and a communicating ring (4324), wherein the fixed ring (4321) and the communicating ring (4324) are fixedly connected with the inner wall of the communicating groove (4311), the pressing head (4322) is abutted to the fixed ring (4321), the pressing spring (4323) is sleeved between the pressing head (4322) and the communicating ring (4324), and a plurality of holes are formed in the communicating ring (4324).
8. The planetary reducer with small speed ratio transmission of claim 7, wherein: the second movable part (433) comprises a movable head (4331) and a movable spring (4332), the movable head (4331) is in sliding connection with the movable groove (4312), one end of the movable spring (4332) is in fastening connection with the movable head (4331), the other end of the movable spring (4332) is in fastening connection with the bottom surface of the movable groove (4312), an electromagnet is arranged in the movable head (4331), and the opposite surfaces of the electromagnet and the power magnet (36) are different-name magnetic poles.
9. The planetary reducer with small speed ratio transmission of claim 8, wherein: the lubricating mechanism (4) is provided with two groups, the directions of lubricating oil in the two groups of lubricating mechanisms (4) are opposite, the suction component (43) in one group of lubricating mechanisms (4) corresponds to the position of the planet carrier (351) at the high speed end of the speed reducer, and the suction component (43) in the other group of lubricating mechanisms (4) corresponds to the position of the planet carrier (351) at the low speed end of the speed reducer.
10. The planetary reducer with small speed ratio transmission according to claim 9, characterized in that: the angle sensor in the detection mechanism (5) is externally connected with a detection power supply, the detection power supply and the angle sensor form a detection circuit, the detection circuit is connected with the electromagnetic iron, and the detection circuit is used for controlling the opening and closing of the electromagnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410410863.XA CN118009025B (en) | 2024-04-08 | Planetary reducer with small speed ratio transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410410863.XA CN118009025B (en) | 2024-04-08 | Planetary reducer with small speed ratio transmission |
Publications (2)
| Publication Number | Publication Date |
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| CN118009025A true CN118009025A (en) | 2024-05-10 |
| CN118009025B CN118009025B (en) | 2024-06-28 |
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| CN116972118A (en) * | 2023-07-28 | 2023-10-31 | 阿尔帕动力科技江苏有限公司 | Waterproof planetary reducer |
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| CN202708024U (en) * | 2012-06-20 | 2013-01-30 | 三一重型装备有限公司 | Rocker arm forced lubrication system and coal cutter |
| CN103486204A (en) * | 2013-08-28 | 2014-01-01 | 浙江天鸿传动机械有限公司 | Miniature planetary gear reducer |
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