CN116357728A - Safety protection device for precise planetary reducer and operation method - Google Patents
Safety protection device for precise planetary reducer and operation method Download PDFInfo
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- CN116357728A CN116357728A CN202310625248.6A CN202310625248A CN116357728A CN 116357728 A CN116357728 A CN 116357728A CN 202310625248 A CN202310625248 A CN 202310625248A CN 116357728 A CN116357728 A CN 116357728A
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- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 113
- 238000000034 method Methods 0.000 title claims abstract description 32
- 239000003921 oil Substances 0.000 claims abstract description 108
- 239000010687 lubricating oil Substances 0.000 claims abstract description 78
- 238000004364 calculation method Methods 0.000 claims abstract description 24
- 230000008569 process Effects 0.000 claims abstract description 22
- 239000007788 liquid Substances 0.000 claims description 35
- 238000000926 separation method Methods 0.000 claims description 28
- 239000002699 waste material Substances 0.000 claims description 22
- 230000005540 biological transmission Effects 0.000 claims description 19
- 230000009471 action Effects 0.000 claims description 18
- 238000010992 reflux Methods 0.000 claims description 18
- 238000012216 screening Methods 0.000 claims description 17
- 238000007405 data analysis Methods 0.000 claims description 12
- 238000012546 transfer Methods 0.000 claims description 10
- 238000013480 data collection Methods 0.000 claims description 9
- 230000009467 reduction Effects 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 5
- 230000000903 blocking effect Effects 0.000 claims description 4
- 238000004458 analytical method Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 abstract description 7
- 230000008859 change Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 125000004122 cyclic group Chemical group 0.000 abstract description 2
- 239000012535 impurity Substances 0.000 description 5
- 239000000314 lubricant Substances 0.000 description 5
- 238000003860 storage Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 3
- 230000000875 corresponding effect Effects 0.000 description 3
- 230000001050 lubricating effect Effects 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0412—Cooling or heating; Control of temperature
- F16H57/0413—Controlled cooling or heating of lubricant; Temperature control therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0402—Cleaning of lubricants, e.g. filters or magnets
- F16H57/0404—Lubricant filters
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The invention discloses a safety protection device for a precise planetary reducer and an operation method thereof, which relate to the technical field of planetary reducers, and mainly aim at the temperature change in the precise planetary reducer during operation, adopt an external lubricating oil circulation cooling mode, and specifically comprise the following steps: the lubricating oil adopts a circulation mode of lower inlet and upper outlet, and the purpose is as follows: guaranteeing that lubricating oil fully fills under the inside prerequisite of speed reducer, can playing the effect of circulation cooling to at cyclic process, at first adopt sectional type backward flow control mode, can carry out the relatively independent circulation oil return process to a plurality of positions of speed reducer body inside, and in every backward flow control mode, establish the calculation mode between temperature-the oil return velocity of flow, its purpose is: the temperature inside the speed reducer body is prevented from exceeding a preset range, and the running state of the speed reducer is prevented from being influenced.
Description
Technical Field
The invention relates to the technical field of planetary speed reducers, in particular to a safety protection device for a precise planetary speed reducer and an operation method.
Background
The planetary reducer is a mechanical structure device widely used for industrial production, is mainly used for reducing the rotating speed of a motor, and mainly comprises an internal gear ring, a sun gear and three or more planetary gears, and the operating principle of the planetary reducer can be referred to as that disclosed in publication No. CN 105952874A.
In combination with the above, it can be found that the operation basis of the planetary reducer mainly depends on gears, and in the closed reducer, each pair of gears mesh with each other to generate friction so as to generate heat, according to the Boyle Ma Lvete law, the temperature in the reducer box gradually rises along with the lengthening of the operation time, and the volume in the reducer box is unchanged, so that the pressure in the box increases.
In combination with the foregoing, and particularly for a precision planetary reducer, with heat and pressure, the lubricant medium in the reducer is affected, and the gear members and the transmission rods therein are affected, for example: with the rise of temperature and pressure, mechanical local fatigue appears in the heated and pressed gear piece, transmission rod, causes the damage to gear piece, transmission rod, under long-term operation, because the mechanical fatigue of transmission rod, the decentration appears between the different transmission rods to and the gap between the different gear meshes increases, influences actual transmission ratio, causes even produces great noise and vibration sense during the operation of whole planetary reducer, especially for accurate planetary reducer, the influence that causes is bigger.
Disclosure of Invention
The invention aims to provide a safety protection device for a precise planetary reducer and an operation method thereof, which are used for solving the problem that the prior precise planetary reducer is influenced by temperature and pressure in the operation process, so that not only a lubrication system in the reducer is influenced, but also a gear piece and a transmission rod in the reducer are influenced, and the eccentricity of the transmission rod and the reduction of a gear meshing coefficient are caused, so that the actual operation state of the planetary reducer is directly interfered.
1. The aim of the invention can be achieved by the following technical scheme: the utility model provides a precision planetary reducer is with safety arrangement, includes speed reducer body, circulating pump and cooler set up in the external position of speed reducer body, and be provided with the oil return pipeline structure between circulating pump and the speed reducer body, circulating pump externally mounted has control panel, the oil return pipeline structure includes out oil pipe, advance oil pipe and sieve oil jacket, go out oil pipe one end intercommunication in speed reducer body shell upside position, advance oil pipe one end intercommunication in speed reducer body shell downside position, sieve oil jacket is installed on out oil pipe, go out oil pipe, advance oil pipe one end and all be provided with the branch, and install the liquid storage ball on the branch position of out oil pipe, install well ball on the branch position of advance oil pipe, install temperature sensor on the liquid storage ball, be provided with speed control structure in the well ball, the cooler is arranged on the oil inlet pipe, the speed control structure comprises a driving motor and a liquid separation rotating ball, the liquid separation rotating ball is rotationally connected in the rotating ball, the driving motor is arranged at the upper end position of the liquid separation rotating ball, the safety protection device establishes a lubricating oil backflow control system through a control panel in the operation process, the lubricating oil backflow control system consists of a data collection module, a data analysis module and a data control module, the lubricating oil backflow control system comprises technological parameters in the operation process of the safety protection device, the technological parameters comprise temperature values of a temperature sensor, output power of a circulating pump and output power of the driving motor, the data collection module is used for recording the technological parameters and transmitting the technological parameters to the data analysis module, the data analysis module is used for carrying out calculation and analysis on the technological parameters to calculate and obtain the lubricating oil backflow circulation speed series, the data control module is used for responding to the lubricating oil return circulation speed series calculated in the data analysis module and executing control action on the oil return pipeline structure.
Further provided is that: the oil screening sleeve is obliquely arranged along the direction close to the circulating pump, the waste collecting pipe is rotationally arranged in the oil screening sleeve, the sealing cap is arranged at the upper end of the waste collecting pipe, and the sealing cap is in threaded connection with the upper end of the oil screening sleeve.
Further provided is that: the waste collecting pipe is characterized in that a plurality of rows of oil screening holes are formed in the outer circumferential wall of the waste collecting pipe, a plurality of sector-shaped blocking strips are arranged in the outer circumferential wall of the waste collecting pipe, and the installation positions of the sector-shaped blocking strips and the oil screening holes are arranged in a staggered mode.
Further provided is that: the tail end of the driving motor transmission rod penetrates downwards to the middle rotating ball, the tail end of the driving motor transmission rod is connected with the position of the curved surface center point on the middle rotating ball, and a through hole is formed in the liquid separation rotating ball.
Further provided is that: the outer wall of the circumference of the liquid separation rotating ball is provided with a plurality of arc-shaped fan-shaped grooves, the arc-shaped fan-shaped grooves are arranged in an annular array along the center point of the liquid separation rotating ball, and the outer curved surface of the liquid separation rotating ball is matched with the inner curved surface of the rotating ball.
Further provided is that: the speed reducer comprises a speed reducer body, wherein a plurality of groups of speed reducing gear sets are arranged in the speed reducer body, a plurality of groups of inner baffle rings are arranged on the inner wall of a shell of the speed reducer body, and the installation positions of the inner baffle rings correspond to the arrangement positions of the upper branches of the oil outlet pipe and the oil inlet pipe.
The operation method of the safety protection device for the precise planetary reducer comprises the following steps of:
step one: recording the obtained technological parameters by a data collection module, and establishing a calculation formula of the lubricating oil reflux circulation speed series G:
wherein T is a display numerical value in the temperature sensor, tmax is a maximum temperature critical value in the speed reducer body, and Tmin is a minimum temperature critical value in the speed reducer body, wherein G is more than 0.
Step two: and establishing a calculation formula of oil return flow speed Vt in the speed control structure by taking the lubricating oil return circulation speed level G as reference data:
wherein Vn is the initial oil inlet speed of the oil inlet pipe, and a conversion formula between the Vn and the output power of the driving motor is established according to a calculation formula of Vt:
wherein P is the output power of the drive motor, k is a conversion factor in a conversion formula, wherein k is a constant value, and
takes absolute positive value, wherein the value of 0.51 is the middle section number in the lubricating oil reflux circulation speed series GValues.
Step three: and (3) combining the data in the first step and the second step, and executing the following actions:
action one: at the initial speed Vn, the liquid separation rotating ball is at an initial position, the driving motor is not started, and the through hole in the liquid separation rotating ball is communicated with the oil inlet pipe.
Action two: when G is more than 0 and less than 0.51, the calculation formula of the oil return flow speed Vt is regenerated into:
the driving motor is controlled to start through the calculated Vt, so that the driving motor drives the liquid separation rotary ball to rotate, the flow speed of lubricating oil is accelerated, and the lubricating oil enters the speed reducer body.
And action III: when G > 0.51, the calculation formula of the oil return flow speed Vt is regenerated into:
the driving motor is controlled to start through the Vt obtained through calculation, the driving motor drives the liquid separation rotary ball to rotate, and the flow speed of lubricating oil is accelerated again and enters the speed reducer body on the basis of the second action.
Step four: and combining the contents of the first step to the third step, setting i reflux control sectioning stages according to the set number of branches on the oil outlet pipe and the oil inlet pipe, wherein i is equal to the set number of branches, each reflux control sectioning stage comprises the step contents of the first step to the third step, and each reflux control sectioning stage is independently carried out.
The invention has the following beneficial effects:
1. the invention is based on the internal temperature change in the operation process of the precision speed reducer, and specifically relates to the temperature of lubricating oil in the speed reducer, and adopts an external circulating cooling mode for the lubricating oil, and the concrete expression is as follows: the lubricating oil is pumped out to an external cooler for cooling treatment, and the cooled lubricating oil is returned to the speed reducer body, so that the running condition of the precise planetary speed reducer is stabilized, the problems of mechanical fatigue and the like of the structure inside the precise planetary speed reducer are avoided under a high-temperature environment, and on the basis, the return flow mode of the lubricating oil is limited to be an up-down-in circulation mode, and the purpose is that: the problem that lubricating oil is lack in the planetary reducer is avoided when the lubricating oil is pumped out.
2. In the process of lubricating oil extraction, firstly, the lubricating oil passes through the inside of the waste collecting pipe of the oil screening sleeve, and when the lubricating oil passes through the waste collecting pipe in the process of lubricating oil flow, impurities in the lubricating oil can be isolated in the waste collecting pipe, so that the aim of preliminarily filtering the impurities is fulfilled.
3. On the basis of the circulation flow of lubricating oil, a sectional type reflux control mode is firstly provided, the purpose of the method is to independently cool the relative position inside the planetary reducer, and then a calculation mode between temperature and oil return flow rate is established, specifically, the method is to adjust the circulation speed of the lubricating oil according to the temperature based on the temperature data of the lubricating oil in each section, and specifically, the method comprises the following steps: if the temperature is too high, the circulation speed of the lubricating oil is increased, and the purpose of the lubricating oil cooling device is to cool the lubricating oil in a short time, so that the running stability and the safety of the planetary reducer are further improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a safety protection device for a precision planetary reducer;
FIG. 2 is a sectional view of a reducer body in a safety protection device for a precision planetary reducer according to the present invention;
FIG. 3 is a front view of FIG. 2 illustrating a safety protection device for a precision planetary reducer according to the present invention;
fig. 4 is a schematic structural diagram of an oil return pipeline structure in a safety protection device for a precision planetary reducer according to the present invention;
FIG. 5 is a cross-sectional view of an oil outlet pipe component in a safety protection device for a precision planetary reducer according to the present invention;
fig. 6 is a sectional view of an oil inlet pipe member in a safety protection device for a precision planetary reducer according to the present invention.
In the figure: 1. a speed reducer body; 2. a liquid storage ball; 3. a temperature sensor; 4. screening oil jackets; 5. a circulation pump; 6. a control panel; 7. a cooler; 8. an oil outlet pipe; 9. an oil inlet pipe; 10. an inner baffle ring; 11. a middle rotating ball; 12. a drive motor; 13. a fan-shaped barrier strip; 14. screening oil holes; 15. a waste collecting pipe; 16. a liquid separation rotating ball; 17. arc-shaped fan blade grooves; 18. and a through hole.
Detailed Description
The technical solutions of the present invention will be clearly and completely described in connection with the embodiments, and it is obvious that the described embodiments are only some embodiments of the present invention, 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.
Example 1
For the precise planetary reducer, the lubricating oil medium is required to be used as a protective medium in the movement process of the planetary reduction gear in the precise planetary reducer, so that the lubricating effect can be achieved, but in the continuous operation process of the precise planetary reducer, the internal temperature of the precise planetary reducer gradually rises, and the problem that the operation condition of the precise planetary reducer is affected exists, such as: with the rise of temperature and pressure, mechanical local fatigue appears in the heated and pressed gear piece, transmission rod piece, causes the damage to gear piece, transmission rod piece, because transmission rod piece's mechanical fatigue, appears decentering between the different transmission rods to and the gap between the different gear meshes increases, influences actual transmission ratio, causes even that whole planetary reducer to produce great noise and vibration sense during operation, has put forward following technical scheme for this reason:
referring to fig. 1-6, a safety protection device for a precision planetary reducer in this embodiment includes a reducer body 1, a circulation pump 5 and a cooler 7, the circulation pump 5 and the cooler 7 are disposed at outer positions of the reducer body 1, an oil return pipeline structure is disposed between the circulation pump 5 and the reducer body 1, a control panel 6 is mounted outside the circulation pump 5, the oil return pipeline structure includes an oil outlet pipe 8, an oil inlet pipe 9 and an oil screening sleeve 4, one end of the oil outlet pipe 8 is communicated at an upper position of a housing of the reducer body 1, one end of the oil inlet pipe 9 is communicated at a lower position of the housing of the reducer body 1, the oil screening sleeve 4 is mounted on the oil outlet pipe 8, branches are disposed at one ends of the oil outlet pipe 8 and the oil inlet pipe 9, a liquid storage ball 2 is mounted at a branching position of the oil inlet pipe 9, a medium rotary ball 11 is mounted at a branching position of the oil inlet pipe 9, a temperature sensor 3 is mounted on the liquid storage ball 2, the transfer ball 11 is provided with a speed control structure, the cooler 7 is arranged on the oil inlet pipe 9, the speed control structure comprises a driving motor 12 and a liquid separation rotary ball 16, the liquid separation rotary ball 16 is rotationally connected in the transfer ball 11, the driving motor 12 is arranged at the upper end position of the liquid separation rotary ball 16, the tail end of a transmission rod of the driving motor 12 downwards penetrates through the transfer ball 11, the tail end of the transmission rod of the driving motor 12 is connected with the central point position of a curved surface on the transfer ball 11, the transfer ball 11 is provided with a through hole 18, the circumferential outer wall of the liquid separation rotary ball 16 is provided with a plurality of arc-shaped fan-shaped grooves 17, the arc-shaped fan-shaped grooves 17 are arranged in an annular array along the center point of the liquid separation rotary ball 16, the outer curved surface of the liquid separation rotary ball 16 is matched with the inner curved surface of the transfer ball 11, the speed reducer body 1 is provided with a plurality of groups of speed reducing gear sets, the inner baffle rings 10 are arranged on the inner wall of the shell of the speed reducer body 1, the installation position of the inner baffle ring 10 corresponds to the arrangement positions of branches on the oil outlet pipe 8 and the oil inlet pipe 9.
Operation principle: referring to fig. 2 and 3 specifically, the inside of the speed reducer body 1 includes a plurality of groups of planetary reduction gears, using lubricating oil as a lubricating medium, and gradually increasing the temperature of the lubricating oil along with the continuous running of the speed reducer body 1, so that the lubricating oil inside the speed reducer body 1 is pumped out by the circulating pump 5 and flows back into the speed reducer body 1 along the oil inlet pipe 9, in the process, the lubricating oil passes through the cooler 7, the cooler 7 cools the lubricating oil, and the cooled lubricating oil flows back into the speed reducer body 1, so that the purpose is that: the temperature of the lubricating oil medium in the speed reducer body 1 is ensured to be in a controllable range, and abnormal conditions caused by overhigh temperature are avoided.
Example two
The embodiment provides the following technical scheme aiming at the lubricating oil circulation process in the first embodiment:
the oil screen sleeve 4 is inclined along the direction close to the circulating pump 5, the waste collecting pipe 15 is rotatably arranged in the oil screen sleeve 4, the sealing cap is arranged at the upper end of the waste collecting pipe 15, the sealing cap is in threaded connection with the upper end position of the oil screen sleeve 4, a plurality of rows of oil screen holes 14 are formed in the circumferential outer wall position of the waste collecting pipe 15, a plurality of sector baffle strips 13 are arranged in the circumferential outer wall position of the waste collecting pipe 15, and the installation positions of the sector baffle strips 13 and the position of the oil screen holes 14 are arranged in a staggered mode.
The technical advantages are that: referring specifically to fig. 5, when the lubricant inside the reducer body 1 is drawn out, the lubricant enters the oil screening sleeve 4, and along with the flow of the lubricant, the waste collecting pipe 15 is driven to rotate at a low speed, and in the rotation process of the waste collecting pipe 15, the lubricant is "concentrated" along the fan-shaped barrier 13 on the oil screening hole 14 on the waste collecting pipe 15, so that the purpose is that: the lubricating oil is led to enter the waste collecting pipe 15, impurities possibly existing in the lubricating oil are reserved at the sector-shaped barrier strip 13, and the existing impurities can be slowly squeezed into the waste collecting pipe 15 along with the continuous rotation of the lubricating oil and the continuous flow of the lubricating oil, so that the effect of filtering the impurities can be achieved.
Example III
The present embodiment proposes the following control manner for the operation principle of the first embodiment:
in the operation process of the safety protection device, a lubricating oil backflow control system is established through the control panel 6 and consists of a data collection module, a data analysis module and a data control module, wherein the lubricating oil backflow control system comprises technological parameters in the operation process of the safety protection device, the technological parameters comprise temperature values of a temperature sensor 3, output power of a circulating pump 5 and output power of a driving motor 12, the data collection module is used for recording the technological parameters and sending the technological parameters to the data analysis module, the data analysis module is used for carrying out calculation analysis on the technological parameters to obtain a lubricating oil backflow circulation speed series, and the data control module is used for responding to the lubricating oil backflow circulation speed series obtained by calculation in the data analysis module and executing control action on an oil return pipeline structure.
The safety protection device comprises the following steps in the operation process:
step one: recording the obtained technological parameters by a data collection module, and establishing a calculation formula of the lubricating oil reflux circulation speed series G:
where T is a display value in the temperature sensor 3, tmax is a maximum temperature critical value inside the speed reducer body 1, and Tmin is a minimum temperature critical value inside the speed reducer body 1, where G > 0.
Step two: and establishing a calculation formula of oil return flow speed Vt in the speed control structure by taking the lubricating oil return circulation speed level G as reference data:
where Vn is the initial oil feed speed of the oil feed pipe 9, a conversion formula with the output power of the drive motor 12 is established according to the calculation formula of Vt:
where P is the output of the drive motor 12, k is a conversion factor in the conversion formula, where k is a constant value, an
Taking an absolute positive value, wherein the value of 0.51 is the middle value in the lubricating oil reflux circulation speed series G.
Step three: and (3) combining the data in the first step and the second step, and executing the following actions:
action one: at the initial speed Vn, the rotor ball 16 is in the initial position, the drive motor 12 is not started, and the through hole 18 in the rotor ball 16 communicates with the oil feed pipe 9.
Action two: when G is more than 0 and less than 0.51, the calculation formula of the oil return flow speed Vt is regenerated into:
the driving motor 12 is controlled to be started by the calculated Vt, so that the driving motor 12 drives the liquid separation rotary ball 16 to rotate, and the flow rate of lubricating oil is accelerated and enters the speed reducer body 1.
And action III: when G > 0.51, the calculation formula of the oil return flow speed Vt is regenerated into:
the driving motor 12 is controlled to be started by calculating Vt, the driving motor 12 drives the liquid separation rotary ball 16 to rotate, and the flow rate of lubricating oil is accelerated again and enters the speed reducer body 1 on the basis of the second action.
Step four: and combining the contents of the first step to the third step, setting i reflux control sectioning stages according to the set quantity of branches on the oil outlet pipe 8 and the oil inlet pipe 9, wherein i is equal to the set quantity of branches, each reflux control sectioning stage comprises the step contents of the first step to the third step, and each reflux control sectioning stage is independently carried out.
Technical advantage
The advantages are as follows: referring to fig. 3, for a precision planetary reducer, there may be a plurality of sets of planetary reduction gears, for which a plurality of inner rings 10 are installed at positions inside the reducer body 1 for the set positions of the planetary reduction gears, the purpose of which is to: the lubrication oil at different positions is circulated relatively independently, so that a sectional reflux control mode is formed, and the reason is that the rotation speeds of the planetary reduction gears in the precise planetary reduction gears are different, so that the lubrication oil temperatures at the positions corresponding to the planetary reduction gears are slightly different, and the sectional independent control mode is adopted.
The advantages are as follows: for the precise planetary reducer, in the non-operating state, the temperature of the lubricating oil in the precise planetary reducer is relatively low, corresponding to Tmin in the embodiment, and tmin=0 may be preset, where Tmax is the maximum temperature of the lubricating oil, and when Tmax is exceeded, the operating condition of the reducer body 1 is abnormal, and for this purpose, first establishing
The purpose is to obtain the number of stages of the return circulation speed of the lubricating oilAnd G, taking the lubricating oil reflux circulation speed series G as a reference base in the subsequent control process.
And further limits the range of the lubricating oil return circulation speed progression G, taking the maximum temperature of the conventional precision planetary reducer of 70 ° as an example, g=0 in the non-operating state, and further limits the value of 0.51 as the middle-stage value in the lubricating oil return circulation speed progression G, taking 70 ° as an example, and when the lubricating oil temperature is lower than 24 °, the value range of G in this state is: 0 to 0.51, the speed reducer body is set in an optimal operation state, but in this state, the lubricating oil is still in a flowing state to
As a calculation standard.
However, when the temperature is gradually increased, the temperature of the lubricating oil is gradually increased, so that the rotation speed of the lubricating oil needs to be increased, the lubricating oil is fully contacted with the cooler 7, the lubricating oil is cooled, and the specific corresponding action is that the oil return flow rate needs to be further increased to further increase
For example, the return oil flow rate is increased.
To sum up: aiming at the internal temperature change during the operation of the precise planetary reducer, an external lubricating oil circulation cooling mode is adopted, and the specific expression is as follows: the lubricating oil adopts a circulation mode of lower inlet and upper outlet, and the purpose is as follows: guaranteeing that lubricating oil fully fills under the inside prerequisite of speed reducer, can playing the effect of circulation cooling to at cyclic process, at first adopt sectional type backward flow control mode, can carry out the relatively independent circulation oil return process to a plurality of positions of speed reducer body inside, and in every backward flow control mode, establish the calculation mode between temperature-the oil return velocity of flow, its purpose is: the temperature inside the speed reducer body is prevented from exceeding a preset range, and the running state of the speed reducer is prevented from being influenced.
The foregoing is merely illustrative and explanatory of the invention, as it is well within the scope of the invention as claimed, as it relates to various modifications, additions and substitutions for those skilled in the art, without departing from the inventive concept and without departing from the scope of the invention as defined in the accompanying claims.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (12)
1. The utility model provides a safety protection device for precision planetary reducer, includes speed reducer body (1), circulating pump (5) and cooler (7), its characterized in that, circulating pump (5) and cooler (7) set up on the external position of speed reducer body (1), and be provided with back oil pipeline structure between circulating pump (5) and speed reducer body (1), circulating pump (5) externally mounted has control panel (6), back oil pipeline structure includes oil outlet pipe (8), oil feed pipe (9) and sieve oil jacket (4), oil outlet pipe (8) one end intercommunication is in speed reducer body (1) shell upside position, oil feed pipe (9) one end intercommunication is in speed reducer body (1) shell downside position, sieve oil jacket (4) are installed on oil outlet pipe (8), oil feed pipe (9) one end all are provided with the branch, and install in the branch position of oil outlet pipe (8) and deposit ball (2), install in the branch position of oil feed pipe (9) and transfer ball (11), in the speed sensor (3) are installed in motor (3), speed sensor (16) is installed in the speed sensor (12), the liquid separation rotary ball (16) is rotationally connected in the rotary ball (11), the driving motor (12) is arranged at the upper end position of the liquid separation rotary ball (16), the safety protection device establishes a lubricating oil backflow control system through the control panel (6) in the operation process, the lubricating oil backflow control system consists of a data collection module, a data analysis module and a data control module, the lubricating oil backflow control system comprises technological parameters in the operation process of the safety protection device, the technological parameters comprise temperature values of the temperature sensor (3), output power of the circulating pump (5) and output power of the driving motor (12), the data collection module is used for recording the technological parameters and sending the technological parameters to the data analysis module, the data analysis module is used for carrying out calculation and analysis on the technological parameters to obtain a lubricating oil backflow circulation speed series, and the data control module is used for responding to the lubricating oil backflow circulation speed series calculated in the data analysis module and executing control action on an oil return pipeline structure.
2. The safety protection device for the precise planetary reducer according to claim 1, wherein the oil screening sleeve (4) is obliquely arranged along the direction close to the circulating pump (5), a waste collecting pipe (15) is rotatably arranged on the oil screening sleeve (4), a sealing cap is arranged at the upper end of the waste collecting pipe (15), and the sealing cap is in threaded connection with the upper end position of the oil screening sleeve (4).
3. The safety protection device for the precise planetary reducer according to claim 2, wherein a plurality of rows of oil screening holes (14) are formed in the circumferential outer wall position of the waste collecting pipe (15), a plurality of sector-shaped blocking strips (13) are mounted in the circumferential outer wall position of the waste collecting pipe (15), and the mounting positions of the sector-shaped blocking strips (13) and the opening positions of the oil screening holes (14) are staggered.
4. The safety protection device for the precise planetary reducer according to claim 1, wherein the tail end of the transmission rod of the driving motor (12) penetrates downwards to the transfer ball (11), the tail end of the transmission rod of the driving motor (12) is connected with the curved surface center point position on the transfer ball (11), and a through hole (18) is formed in the liquid separation transfer ball (16).
5. The safety protection device for the precise planetary reducer according to claim 4, wherein a plurality of arc-shaped fan-shaped grooves (17) are formed in the outer circumferential wall of the liquid separation rotary ball (16), the arc-shaped fan-shaped grooves (17) are arranged in an annular array along the center point of the liquid separation rotary ball (16), and the outer curved surface of the liquid separation rotary ball (16) is matched with the inner curved surface of the rotary ball (11).
6. The safety protection device for the precise planetary reducer according to claim 1, wherein a plurality of groups of reduction gear sets are arranged in the reducer body (1), a plurality of groups of inner baffle rings (10) are arranged on the inner wall of the shell of the reducer body (1), and the installation positions of the inner baffle rings (10) correspond to the arrangement positions of branches on the oil outlet pipe (8) and the oil inlet pipe (9).
7. The operation method of the safety protection device for the precise planetary reducer, which is characterized in that the safety protection device for the precise planetary reducer is adopted according to any one of claims 1-6, and is characterized in that the safety protection device comprises the following steps in the operation process:
step one: recording the obtained technological parameters by a data collection module, and establishing a calculation formula of the lubricating oil reflux circulation speed series G:
wherein T is a display numerical value in the temperature sensor (3), tmax is a maximum temperature critical value inside the speed reducer body (1), and Tmin is a minimum temperature critical value inside the speed reducer body (1), wherein G is more than 0.
8. Step two: and establishing a calculation formula of oil return flow speed Vt in the speed control structure by taking the lubricating oil return circulation speed level G as reference data:
wherein Vn is the initial oil inlet speed of the oil inlet pipe (9), and a conversion formula between the Vn and the output power of the driving motor (12) is established according to a calculation formula of Vt: />
Wherein P is the output of the drive motor (12), k is the conversion factor in the conversion formula, wherein k is a constant value, and +.>
Taking an absolute positive value, wherein the value of 0.51 is the middle value in the lubricating oil reflux circulation speed series G.
9. Step three: and (3) combining the data in the first step and the second step, and executing the following actions:
action one: at the initial speed Vn, the liquid separating rotary ball (16) is at an initial position, the driving motor (12) is not started, and the through hole (18) in the liquid separating rotary ball (16) is communicated with the oil inlet pipe (9).
10. Action two: when G is more than 0 and less than 0.51, the calculation formula of the oil return flow speed Vt is regenerated into:
the driving motor (12) is controlled to start through the calculated Vt, the driving motor (12) drives the liquid separation rotary ball (16) to rotate, and the flow speed of lubricating oil is accelerated and enters the speed reducer body (1).
11. And action III: when G > 0.51, the calculation formula of the oil return flow speed Vt is regenerated into:
the driving motor (12) is controlled to start through calculating Vt, the driving motor (12) drives the liquid separation rotary ball (16) to rotate, and the flow speed of lubricating oil is accelerated again and enters the speed reducer body (1) on the basis of second action.
12. Step four: and combining the contents of the first step to the third step, setting i reflux control sectioning stages according to the set number of branches on the oil outlet pipe (8) and the oil inlet pipe (9), wherein i is equal to the set number of branches, each reflux control sectioning stage comprises the step contents of the first step to the third step, and each reflux control sectioning stage is independently carried out.
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| CN202310625248.6A CN116357728B (en) | 2023-05-30 | 2023-05-30 | Safety protection device for precise planetary reducer and operation method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0776229A (en) * | 1993-06-16 | 1995-03-20 | Aqueous Res:Kk | Lubricating device for hybrid vehicle |
| CN212564337U (en) * | 2020-06-15 | 2021-02-19 | 苏州巨威自动化控制设备有限公司 | Planetary reducer with protection device |
| CN217481929U (en) * | 2022-04-27 | 2022-09-23 | 东莞市星维达精密传动有限公司 | Planetary reducer of high-speed motor |
| CN218761323U (en) * | 2022-12-31 | 2023-03-28 | 库德班传动科技(常州)有限公司 | Heat dissipation device of planetary reducer |
| CN219045564U (en) * | 2023-01-10 | 2023-05-19 | 浙江东海减速机有限公司 | Speed reducer with temperature monitoring function |
-
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- 2023-05-30 CN CN202310625248.6A patent/CN116357728B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0776229A (en) * | 1993-06-16 | 1995-03-20 | Aqueous Res:Kk | Lubricating device for hybrid vehicle |
| CN212564337U (en) * | 2020-06-15 | 2021-02-19 | 苏州巨威自动化控制设备有限公司 | Planetary reducer with protection device |
| CN217481929U (en) * | 2022-04-27 | 2022-09-23 | 东莞市星维达精密传动有限公司 | Planetary reducer of high-speed motor |
| CN218761323U (en) * | 2022-12-31 | 2023-03-28 | 库德班传动科技(常州)有限公司 | Heat dissipation device of planetary reducer |
| CN219045564U (en) * | 2023-01-10 | 2023-05-19 | 浙江东海减速机有限公司 | Speed reducer with temperature monitoring function |
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