CN107642546B - Rolling bearing protection method and protection device and bearing seat using protection device - Google Patents
Rolling bearing protection method and protection device and bearing seat using protection device Download PDFInfo
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- CN107642546B CN107642546B CN201711078706.XA CN201711078706A CN107642546B CN 107642546 B CN107642546 B CN 107642546B CN 201711078706 A CN201711078706 A CN 201711078706A CN 107642546 B CN107642546 B CN 107642546B
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Abstract
The rolling bearing protection method specifically comprises the following steps: step one, collecting the temperature T1 of a bearing outer ring by using a first temperature sensor; step two, collecting the temperature T2 of the bearing inner ring by using a second temperature sensor; step three, heating or cooling the bearing outer ring by using temperature control oil flowing along the circumferential direction of the bearing outer ring to enable the T1 to approach to T2; and step four, circularly performing the step one to the step three. The invention provides a rolling bearing protection method, and also provides a protection device based on the bearing protection method and a bearing seat using the protection device.
Description
Technical Field
The invention relates to a bearing protection device, in particular to a rolling bearing protection method, a protection device and a bearing seat using the protection device.
Background
The expansion degree of the inner ring and the outer ring is different due to different heat productivity and heat dissipation of the inner ring and the outer ring in the working process of the rolling bearing, wherein the expansion of the inner ring is the most serious, the roller is the second time, and the outer ring is the smallest, so that the radial clearance of the rolling bearing is reduced, and the friction of the bearing is increased. Under the working condition of light load and low speed, the influence of the change of the working clearance of the bearing caused by the temperature difference of the inner ring and the outer ring of the bearing on the working life of the bearing is small; however, under the working condition of high speed and heavy load, especially under the working condition of high DN value, the temperature difference between the inner ring and the outer ring of the rolling bearing not only affects the rotation precision of the system, but also can cause the temperature difference to be aggravated, and the service life of the bearing is seriously affected, and at the moment, the problem of inconsistent temperature of the inner ring and the outer ring can not be solved only by a common lubricating and cooling method.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides a rolling bearing protection method, and also provides a protection device based on the bearing protection method and a bearing seat using the protection device.
In order to achieve the purpose, the invention adopts the specific scheme that:
the rolling bearing protection method specifically comprises the following steps:
step one, collecting the temperature T1 of a bearing outer ring by using a first temperature sensor;
step two, collecting the temperature T2 of the bearing inner ring by using a second temperature sensor;
step three, heating or cooling the bearing outer ring by using temperature control oil flowing along the circumferential direction of the bearing outer ring to enable the T1 to approach to T2;
and step four, circularly performing the step one to the step three.
In the fourth step, the temperature of the temperature control oil is adjusted after each circulation, if T1 is greater than T2, the temperature control oil is cooled, and if T1 is less than T2, the temperature control oil is heated.
The rolling bearing protection device comprises an acquisition mechanism, a temperature control mechanism and a temperature adjustment mechanism;
the acquisition mechanism comprises a first temperature sensor for detecting the temperature of the outer ring of the bearing and a second temperature sensor for detecting the temperature of the inner ring of the bearing;
the temperature control mechanism comprises a temperature control oil path arranged on the circumferential side of the bearing outer ring, and temperature control oil flows in the temperature control oil path;
the temperature adjusting mechanism comprises a temperature control oil tank, a temperature adjusting device, a hydraulic pump and a one-way valve which are sequentially arranged, wherein the temperature control oil tank is communicated with the temperature control oil way, and under the action of the hydraulic pump, temperature control oil flows out of the temperature control oil tank, then flows into the temperature control oil way after sequentially passing through the temperature adjusting device, the hydraulic pump and the one-way valve to heat or cool the outer ring of the bearing, and then flows back into the temperature control oil tank again.
The temperature control oil path comprises a plurality of annular oil grooves arranged on the circumferential side of the bearing outer ring, the annular oil grooves are uniformly distributed along the axial direction of the bearing outer ring, and the opened ends of the annular oil grooves are attached to the bearing outer ring.
The temperature control device further comprises a computer, and the first temperature sensor, the second temperature sensor, the temperature adjusting device and the hydraulic pump are all electrically connected with the computer.
The bearing seat comprises a top cover and a base which are arranged up and down and used for clamping the bearing, and two sealing mechanisms which are respectively arranged on two sides of the bearing, wherein each sealing mechanism comprises a sealing disc and a side cover which are arranged in parallel, and the bearing seat also comprises a lubricating device and a protection device;
the lubricating device comprises a lubricating oil loop and a circulating oil supply mechanism; the lubricating oil loop comprises a lubricating oil input channel, a bearing seat inner cavity, an oil pool and a lubricating oil output channel which are sequentially communicated, wherein the lubricating oil input channel is arranged on the side cover; the circulating oil supply mechanism comprises a lubricating oil tank for communicating the lubricating oil input channel and the lubricating oil output channel;
the protection device comprises an acquisition mechanism, a temperature control mechanism and a temperature regulation mechanism; the acquisition mechanism comprises a first temperature sensor for detecting the temperature of the outer ring of the bearing and a second temperature sensor for detecting the temperature of the inner ring of the bearing; the temperature control mechanism comprises a temperature control oil path arranged on the circumferential side of the bearing outer ring, and temperature control oil flows in the temperature control oil path; the temperature adjusting mechanism comprises a temperature control oil tank, a temperature adjusting device, a hydraulic pump and a one-way valve which are sequentially arranged, wherein the temperature control oil tank is communicated with the temperature control oil way, and under the action of the hydraulic pump, temperature control oil flows out of the temperature control oil tank, then flows into the temperature control oil way after sequentially passing through the temperature adjusting device, the hydraulic pump and the one-way valve to heat or cool the outer ring of the bearing, and then flows back into the temperature control oil tank again.
The temperature control oil path comprises a temperature control oil input channel, a temperature control oil channel and a temperature control oil output channel which are sequentially communicated;
the temperature control oil input channel is arranged on the top cover;
the temperature control oil passage comprises two annular oil passages which are arranged in parallel, the annular oil passages are formed by two semi-annular oil passages which are respectively arranged on the inner walls of the top cover and the base, the upper ends of the two annular oil passages are communicated through an upper axial communication groove arranged on the top cover, the upper axial communication groove is communicated with the temperature control oil input passage, the temperature control oil output passage comprises a lower axial communication groove arranged on the base and a first radial passage arranged in the base, the lower ends of the two annular oil passages are communicated through the lower axial communication groove, and the first radial passage penetrates through the side wall of the base.
The lubricating oil output channel comprises an axial channel which is arranged in the base and used for communicating two oil pools, a vertical channel is also arranged in the base, the vertical channel is communicated with the middle part of the axial channel, a second radial channel is also arranged in the base, and the second radial channel is communicated with the middle part of the vertical channel and penetrates through the side wall of the base.
The lubricating oil tank comprises an inflow end communicated with the lubricating oil output channel and an outflow end communicated with the lubricating oil input channel, the second temperature sensor is arranged at the inflow end of the lubricating oil tank, the outflow end is communicated with the lubricating oil input channel sequentially through a filter, a hydraulic pump and a one-way valve, and an overflow valve is further communicated between the filter and the hydraulic pump.
An overflow valve is also communicated between the temperature adjusting device and the hydraulic pump; the bearing comprises a base and is characterized in that a sensor mounting hole is formed in the base, one end of the sensor mounting hole is attached to the bearing inner ring, and the first temperature sensor is arranged in the sensor mounting hole.
Has the advantages that:
1. according to the rolling bearing protection method, when the bearing works, the temperatures of the inner ring and the outer ring of the bearing are detected in real time, and the outer ring of the bearing is heated or cooled according to the detection result, so that the temperature of the outer ring of the bearing is consistent with the temperature of the inner ring of the bearing and has the same expansion degree, and the reduction of the radial clearance and the increase of the friction of the bearing are avoided;
2. according to the rolling bearing protection device provided by the invention, the temperature control oil path is additionally arranged in the circumferential direction of the bearing outer ring, the temperature of the bearing outer ring is controlled by flowing the temperature control oil along the bearing outer ring, the temperature control effect is good, no additional equipment is added, and no influence is generated on the work of the bearing;
3. according to the bearing seat provided by the invention, the oil outlet pool is enclosed between the side cover and the base of the bearing seat, so that the fluctuating lubricating oil in the bearing seat can be buffered, the burden of a sealing structure is avoided, and the overhigh temperature caused by excessive lubricating oil in the bearing seat can be avoided;
4. the temperature of the bearing inner ring is approximately obtained by detecting the temperature of the lubricating oil output from the bearing seat, the structure is simple, and the error is small.
Drawings
FIG. 1 is a radial sectional view of the overall construction of a bearing housing;
FIG. 2 is a schematic diagram showing the detailed structure of the temperature-controlled oil outlet passage and the lubricating oil outlet passage;
FIG. 3 is a first axial sectional view of the bearing seat overall structure;
FIG. 4 is a second axial sectional view of the bearing seat overall structure;
fig. 5 is a schematic diagram of the circulating oil supply mechanism and the temperature adjusting mechanism.
Reference numerals: 1. a temperature control oil input channel, 2, an upper axial communication groove, 3, an annular oil channel, 4, a lubricating oil input channel, 5, a bearing outer ring, 6, a bearing roller, 7, a bearing inner ring, 8, a temperature control oil output channel, 801, a lower axial communication groove, 802, a first radial channel, 9, a lubricating oil output channel, 901, an axial channel, 902, a second radial channel, 903, a vertical channel, 10, a sealing ring, 11, a top cover, 12, a sealing disc, 13, side cover, 14, pressure relief opening, 15, annular boss, 16, liquid level meter inflow channel, 17, liquid level meter outflow channel, 18, oil sump, 19, lubricating oil tank, 20, overflow valve, 21, hydraulic pump, 22, check valve, 23, temperature adjusting device, 24, temperature control oil tank, 25, flow divider, 26, second temperature sensor, 27, filter, 28, sensor mounting hole, 29 and base.
Detailed Description
Embodiments of the present invention will be specifically described below with reference to the accompanying drawings.
The rolling bearing protection method specifically comprises the following steps:
step one, collecting the temperature T1 of a bearing outer ring by using a first temperature sensor;
step two, collecting the temperature T2 of the bearing inner ring by using a second temperature sensor;
step three, heating or cooling the bearing outer ring by using temperature control oil flowing along the circumferential direction of the bearing outer ring to enable the T1 to approach to T2;
and step four, circularly performing the step one to the step three, adjusting the temperature of the temperature control oil after each circulation, cooling the temperature control oil if T1 is greater than T2, and heating the temperature control oil if T1 is less than T2.
As shown in fig. 1 to 5, the rolling bearing protection device comprises an acquisition mechanism, a temperature control mechanism, a temperature adjustment mechanism and a computer. The acquisition mechanism comprises a first temperature sensor for detecting the temperature of the bearing outer ring 5 and a second temperature sensor 26 for detecting the temperature of the bearing inner ring 7, and the first temperature sensor, the second temperature sensor 26, the temperature adjusting device 23 and the hydraulic pump 21 are all electrically connected with the computer. The temperature control mechanism comprises a temperature control oil path arranged on the circumferential side of the bearing outer ring 5, temperature control oil flows in the temperature control oil path, the temperature control oil path comprises a plurality of annular oil grooves arranged on the circumferential side of the bearing outer ring 5, the annular oil grooves are uniformly distributed along the axial direction of the bearing outer ring 5, and the open end of each annular oil groove is attached to the bearing outer ring 5. The temperature adjusting mechanism comprises a temperature control oil tank 24, a temperature adjusting device 23, a hydraulic pump 21 and a one-way valve 22 which are sequentially arranged, wherein the temperature control oil tank 24 is communicated with a temperature control oil way.
When the bearing works, the first temperature sensor and the second temperature sensor 26 respectively detect the temperatures of the bearing outer ring 5 and the bearing inner ring 7, then the detected analog signals are converted into digital signals through the A/D conversion device and transmitted to the computer, the computer judges the relationship between the temperature T1 of the bearing outer ring 5 and the temperature T2 of the bearing inner ring 7, if T1 is greater than T2, the temperature control oil needs to be cooled, if T1 is less than T2, the temperature control oil needs to be heated, the difference T = | T1-T2| between T1 and T2 is calculated, then a heating or cooling instruction is generated, and the heating or cooling instruction and the difference T are transmitted to the temperature adjusting device 23. Then, under the action of the hydraulic pump 21, the temperature-controlled oil flows out from the temperature-controlled oil tank 24, firstly passes through the temperature adjusting device 23, the temperature of the temperature-controlled oil is adjusted to T2 by the temperature adjusting device 23, then the temperature-controlled oil flows into the temperature-controlled oil path after passing through the hydraulic pump 21 and the check valve 22 to heat or cool the bearing outer ring 5, and finally flows back into the temperature-controlled oil tank 24 again.
Under the general condition, the temperature of bearing inner race 7 is higher than the temperature of bearing outer race 5 when the bearing is worked, T1< T2 promptly, cause the degree of expansion of bearing inner race 7 to be greater than the degree of expansion of bearing outer race 5, and then lead to the radial play of bearing to reduce, the friction increase, under the operating mode of light load low speed, the bearing inner race and outer race difference in temperature causes the change of bearing radial play not to influence the working life of bearing very much, but under the high-speed heavy load operating mode, especially under the high DN value operating mode the rolling bearing inner race and outer race difference in temperature not only influences the gyration precision of system, and can lead to the difference in temperature aggravation, seriously influence the life of bearing. By heating the bearing outer ring 5, the expansion degree of the bearing outer ring 5 is consistent with that of the bearing inner ring 7, so that the change of the radial clearance of the bearing is eliminated, the additional friction caused by the change of the radial clearance is reduced, the bearing is effectively protected, and the service life of the bearing is prolonged.
Along with the increase of the radial play, the friction is reduced, the temperature of the bearing inner ring 7 is reduced, if the bearing outer ring 5 is still heated, the radial play of the bearing is overlarge, the rotation precision of the bearing is reduced, and at the moment, the bearing outer ring 5 is cooled through temperature control oil, so that the radial play of the bearing is kept in an optimal interval, and the bearing is protected. The heating or cooling of the temperature control oil is determined by the temperature of the bearing outer ring 5 and the bearing inner ring 7 and is processed by a computer, so that the efficiency is high and the precision is good.
Bearing frame, including top cap 11 and the base 29 that is used for the centre gripping bearing that sets up from top to bottom and set up two sealing mechanism in the bearing both sides respectively, sealing mechanism is including sealed dish 12 and the side cap 13 that sets up side by side, wherein sealed dish 12 and bearing inner race 7 laminating, side cap 13 and top cap 11 and base 29 laminate mutually, an organic whole is connected with the cyclic annular boss 15 of a plurality of on sealed dish 12, a plurality of and cyclic annular boss 15 assorted annular groove have been seted up on the side cap 13, cyclic annular boss 15 forms labyrinth seal with the cooperation of cyclic annular groove. The sealing ring 10 is arranged between the side cover 13 and the nail cover 11 and the base 29, and the side cover 13 does not rotate when the bearing works, so that the sealing is only needed to be carried out through the sealing ring 10.
The bearing housing further comprises a lubricating device for continuously supplying lubricating oil to the bearing and a protecting device for protecting the bearing by controlling the temperature of the outer ring 5 of the bearing.
The lubricating device comprises a lubricating oil loop and a circulating oil supply mechanism. The lubricating oil loop comprises a lubricating oil input channel 4, a bearing seat inner cavity, an oil pool 18 and a lubricating oil output channel 9 which are sequentially communicated. The lubricant oil inlet passage 4 is opened in the side cover 13 and extends inward in the radial direction of the side cover 13. The bearing seat inner cavity is enclosed by a bearing, a sealing disc 12 and a side cover 13. A groove is formed in the bottom of the side cover 13, and the groove forms an oil pool 18 when the side cover 13 is attached to the base 29. The lubricating oil output channel 9 comprises an axial channel 901 which is arranged in the base 29 and used for communicating the two oil pools 18, a vertical channel 903 is also arranged in the base 29, the vertical channel 903 is communicated with the middle of the axial channel 901, a second radial channel 902 is also arranged in the base 29, and the second radial channel 902 is communicated with the middle of the vertical channel 903 and penetrates through the side wall of the base 29. The circulating oil supply mechanism comprises a lubricating oil tank 19 for communicating the lubricating oil input channel 4 and the lubricating oil output channel 9, the lubricating oil tank 19 comprises an inflow end communicated with the lubricating oil output channel 9 and an outflow end communicated with the lubricating oil input channel 4, a second temperature sensor 26 is arranged at the inflow end of the lubricating oil tank 19, the outflow end is communicated with the lubricating oil input channel sequentially through a filter 27, a hydraulic pump 21 and a one-way valve 22, and an overflow valve 20 is further communicated between the filter 27 and the hydraulic pump 21. When the bearing works, under the action of the hydraulic pump 21, lubricating oil passes through the filter 27, the hydraulic pump 21 and the check valve 22 in sequence and then is divided into two parts by the flow dividing valve 25, the two parts of lubricating oil respectively flow into the inner cavity of the bearing seat from the lubricating oil input channel 4 arranged on the two side covers 13 and are sprayed to the bearing roller 6 to lubricate the bearing, under the action of centrifugal force and the stirring of the bearing roller 6, the lubricating oil completing lubrication splashes out of the bearing and falls into the oil pool 18 downwards under the action of gravity, the oil pool 18 can absorb the excessive lubricating oil generated when the supply of the lubricating oil fluctuates, the excessive pressure and the overheating inside of the bearing seat caused to a sealing structure are avoided, and the lubricating oil flows back into the lubricating oil tank 19 through the lubricating oil output channel 9.
Because the temperature of the bearing inner ring 7 is difficult to directly measure, the second temperature sensor 26 is arranged at the inflow end of the lubricating oil tank 19, the temperature of the bearing inner ring 7 is approximately obtained by detecting the temperature of the outflow lubricating oil, the structure is simple, the measurement is convenient, and the error is small.
Still seted up level gauge inflow channel 16 and level gauge outflow channel 17 on base 29, through increasing the level gauge, can real-time supervision oil bath 18 in the lubricated oil mass, avoid lubricated oil mass too big to cause the damage to the bearing frame.
The protection device comprises a collection mechanism, a temperature control mechanism and a temperature adjusting mechanism. The acquisition mechanism comprises a first temperature sensor for detecting the temperature of the bearing outer ring 5 and a second temperature sensor 26 for detecting the temperature of the bearing inner ring 7, wherein the second temperature sensor 26 is arranged at the inflow end of the lubricating oil tank 19, the first temperature sensor is arranged in a sensor mounting hole 28 formed in a base 29, and one end of the sensor mounting hole 28 is attached to the bearing inner ring 7. The temperature control mechanism comprises a temperature control oil path arranged on the circumferential side of the bearing outer ring 5, temperature control oil flows in the temperature control oil path, and the temperature control oil path comprises a temperature control oil input channel 1, a temperature control oil path and a temperature control oil output channel 8 which are sequentially communicated; the temperature control oil input channel 1 is arranged on the top cover 11; the temperature control oil passage comprises two annular oil passages 3 which are arranged in parallel, each annular oil passage 3 consists of two semi-annular oil passages 3 which are respectively arranged on the inner walls of the top cover 11 and the base 29, the upper ends of the two annular oil passages 3 are communicated through an upper axial communication groove 2 arranged on the top cover 11, the upper axial communication groove 2 is communicated with the temperature control oil input channel 1, the temperature control oil output channel 8 comprises a lower axial communication groove 801 arranged on the base 29 and a first radial channel 802 arranged in the base 29, the lower ends of the two annular oil passages 3 are communicated through the lower axial communication groove 801, and the first radial channel 802 penetrates through the side wall of the base 29. The temperature adjusting mechanism comprises a temperature control oil tank 24, a temperature adjusting device 23, a hydraulic pump 21 and a one-way valve 22 which are sequentially arranged, wherein the temperature control oil tank 24 is communicated with a temperature control oil way, and under the action of the hydraulic pump 21, temperature control oil flows out of the temperature control oil tank 24, then sequentially flows into the temperature control oil way after passing through the temperature adjusting device 23, the hydraulic pump 21 and the one-way valve 22 to heat or cool the bearing outer ring 5, and then flows back into the temperature control oil tank 24 again. A relief valve 20 is also provided in communication between the temperature adjustment device 23 and the hydraulic pump 21.
It is further noted that, herein, relational terms such as first and second, and the like may be 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. Also, 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. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. Antifriction bearing protection device, its characterized in that: comprises a collecting mechanism, a temperature control mechanism and a temperature adjusting mechanism;
the acquisition mechanism comprises a first temperature sensor for detecting the temperature of the bearing outer ring (5) and a second temperature sensor (26) for detecting the temperature of the bearing inner ring (7);
the temperature control mechanism comprises a temperature control oil path arranged on the circumferential side of the bearing outer ring (5), and temperature control oil flows in the temperature control oil path;
the temperature adjusting mechanism comprises a temperature control oil tank (24), a temperature adjusting device (23), a hydraulic pump (21) and a one-way valve (22) which are sequentially arranged, wherein the temperature control oil tank (24) is communicated with the temperature control oil way, under the action of the hydraulic pump (21), temperature control oil flows out of the temperature control oil tank (24), then sequentially passes through the temperature adjusting device (23), the hydraulic pump (21) and the one-way valve (22), flows into the temperature control oil way, and is heated or cooled for the bearing outer ring (5), and then flows back into the temperature control oil tank (24) again;
the protection method implemented by the protection device comprises the following specific steps:
step one, collecting the temperature T1 of a bearing outer ring by using a first temperature sensor;
step two, collecting the temperature T2 of the bearing inner ring by using a second temperature sensor;
step three, heating or cooling the bearing outer ring by using temperature control oil flowing along the circumferential direction of the bearing outer ring to enable T1 to approach to T2, cooling the temperature control oil if T1 is greater than T2, and heating the temperature control oil if T1 is less than T2;
and step four, circularly performing the step one to the step three.
2. A rolling bearing protection device according to claim 1, characterized in that: the temperature control oil path comprises a plurality of annular oil grooves arranged on the circumferential side of the bearing outer ring (5), the annular oil grooves are uniformly distributed along the axial direction of the bearing outer ring (5), and the opened ends of the annular oil grooves are attached to the bearing outer ring (5).
3. A rolling bearing protection device according to claim 1, characterized in that: the temperature control system further comprises a computer, and the first temperature sensor, the second temperature sensor (26), the temperature adjusting device (23) and the hydraulic pump (21) are electrically connected with the computer.
4. Bearing frame, including top cap (11) and base (29) and two sealing mechanism that set up respectively in the bearing both sides that are used for the centre gripping bearing that set up from top to bottom, sealing mechanism is including sealed dish (12) and side cap (13) that set up side by side, its characterized in that: the bearing seat also comprises a lubricating device and a protecting device;
the lubricating device comprises a lubricating oil loop and a circulating oil supply mechanism; the lubricating oil loop comprises a lubricating oil input channel (4), a bearing seat inner cavity, an oil pool (18) and a lubricating oil output channel (9) which are sequentially communicated, wherein the lubricating oil input channel (4) is arranged on a side cover (13), the bearing seat inner cavity is formed by enclosing a bearing, a sealing disc (12) and the side cover (13), the oil pool (18) is formed by enclosing the side cover (13) and a base (29), and the lubricating oil output channel (9) is arranged on the base (29); the circulating oil supply mechanism comprises a lubricating oil tank (19) for communicating the lubricating oil input channel (4) and the lubricating oil output channel (9);
the protection device comprises an acquisition mechanism, a temperature control mechanism and a temperature regulation mechanism; the acquisition mechanism comprises a first temperature sensor for detecting the temperature of the bearing outer ring (5) and a second temperature sensor (26) for detecting the temperature of the bearing inner ring (7); the temperature control mechanism comprises a temperature control oil path arranged on the circumferential side of the bearing outer ring (5), and temperature control oil flows in the temperature control oil path; the temperature adjusting mechanism comprises a temperature control oil tank (24), a temperature adjusting device (23), a hydraulic pump (21) and a one-way valve (22) which are sequentially arranged, wherein the temperature control oil tank (24) is communicated with the temperature control oil way, under the action of the hydraulic pump (21), temperature control oil flows out of the temperature control oil tank (24), then sequentially passes through the temperature adjusting device (23), the hydraulic pump (21) and the one-way valve (22), flows into the temperature control oil way to heat or cool the bearing outer ring (5), and then flows back into the temperature control oil tank (24) again;
the protection method implemented by the protection device comprises the following specific steps:
step one, collecting the temperature T1 of a bearing outer ring by using a first temperature sensor;
step two, collecting the temperature T2 of the bearing inner ring by using a second temperature sensor;
step three, heating or cooling the bearing outer ring by using temperature control oil flowing along the circumferential direction of the bearing outer ring to enable T1 to approach to T2, cooling the temperature control oil if T1 is greater than T2, and heating the temperature control oil if T1 is less than T2;
and step four, circularly performing the step one to the step three.
5. A bearing housing according to claim 4, wherein: the temperature control oil way comprises a temperature control oil input channel (1), a temperature control oil channel and a temperature control oil output channel (8) which are sequentially communicated;
the temperature control oil input channel (1) is arranged on the top cover (11);
the temperature control oil passage comprises two annular oil passages (3) which are arranged in parallel, the annular oil passages (3) are formed by two semi-annular oil passages (3) which are respectively arranged on the inner walls of a top cover (11) and a base (29), the upper ends of the two annular oil passages (3) are communicated through an upper axial communication groove (2) arranged on the top cover (11), the upper axial communication groove (2) is communicated with the temperature control oil input channel (1), the temperature control oil output channel (8) comprises a lower axial communication groove (801) arranged on the base (29) and a first radial channel (802) arranged in the base (29), the lower ends of the two annular oil passages (3) are communicated through the lower axial communication groove (801), and the first radial channel (802) penetrates through the side wall of the base (29).
6. A bearing housing according to claim 4, wherein: the lubricating oil output channel (9) comprises an axial channel (901) which is arranged in the base (29) and used for communicating the two oil pools (18), a vertical channel (903) is further arranged in the base (29), the vertical channel (903) is communicated with the middle of the axial channel (901), a second radial channel (902) is further arranged in the base (29), and the second radial channel (902) is communicated with the middle of the vertical channel (903) and penetrates through the side wall of the base (29).
7. A bearing housing according to claim 4, wherein: the lubricating oil tank (19) comprises an inflow end communicated with the lubricating oil output channel (9) and an outflow end communicated with the lubricating oil input channel (4), the second temperature sensor (26) is arranged at the inflow end of the lubricating oil tank (19), the outflow end is communicated with the lubricating oil input channel sequentially through a filter (27), a hydraulic pump (21) and a one-way valve (22), and an overflow valve (20) is further communicated between the filter (27) and the hydraulic pump (21).
8. A bearing housing according to claim 4, wherein: an overflow valve (20) is communicated between the temperature adjusting device (23) and the hydraulic pump (21); the bearing is characterized in that a sensor mounting hole (28) is formed in the base (29), one end of the sensor mounting hole (28) is attached to the bearing inner ring (7), and the first temperature sensor is arranged in the sensor mounting hole (28).
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| CN201711078706.XA CN107642546B (en) | 2017-11-06 | 2017-11-06 | Rolling bearing protection method and protection device and bearing seat using protection device |
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| CN201711078706.XA CN107642546B (en) | 2017-11-06 | 2017-11-06 | Rolling bearing protection method and protection device and bearing seat using protection device |
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| CN107642546B true CN107642546B (en) | 2020-07-07 |
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| CN108712023A (en) * | 2018-06-04 | 2018-10-26 | 电子科技大学中山学院 | New energy automobile motor with integrated controller |
| CN108775331B (en) * | 2018-06-12 | 2020-07-24 | 台州福派信息科技有限公司 | Dustproof one-way bearing |
| CN108775332B (en) * | 2018-06-12 | 2020-06-23 | 上海君驰实业发展有限公司 | Assembling method of one-way motor dustproof bearing assembly |
| WO2023206716A1 (en) * | 2022-04-28 | 2023-11-02 | 中国华能集团清洁能源技术研究院有限公司 | Blower bearing block lubrication oil system |
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