A kind of intelligent bearing and preparation method thereof with thermometric sensing control function
Technical field
The present invention relates to a kind of intelligent bearings and preparation method thereof with thermometric sensing control function, belong to intelligent bearing technology
Field.
Background technique
Bearing is the important component for guaranteeing the normal safe handling of transmission system, and the usual operating temperature of bearing steel material is lower than
80 DEG C, 120 DEG C are not exceeded generally, as long as temperature value is more higher than specified permissible value, will lead to the raceway working surface of rotation not
The disconnected effect by alternating force and the fatigue of materials failure generated.The form of fatigue failure is that raceway contact surface generation fatigue is split
Line or peeling lead to bearing running hot until damage completely.
Bearing operates for a long time will also result in natural wear-out failure, and raceway friction surface is micro- convex when wear-out failure
The foreign matter for rising and falling off makes surface unbalance stress, so that local friction's heat is caused local deformation, can all lead to bearing damage.Especially
It is to find ahead of time under the bearing service condition of special operation condition and perceive whether bearing has exception, replacing bearing in time is very
Important.Bearing is all that will cause bearing heating in the common feature damaged by alternating force fatigue damage or fair wear and tear,
Bearing damage is accelerated under high temperature.The bearing of intellectual technology with thermometric sensing control, bearing temperature be more than limit value when and morning newspaper
The bearing of alert replacement fatigue damage or abrasion, avoids the occurrence of the bigger loss of equipment.
Therefore, in order to improve economy and productivity effect, when special operation condition design bearing, needs real-time monitoring bearing operation temperature,
Alarm is issued when abnormal conditions or operating temperature exceed specified limit value, to find the problem and to be handled in time.
The method for wanting bearing real-time monitoring operating temperature of the prior art is first is that increase device for monitoring temperature, such as patent of invention
201711277084.3 publication number 107830067A of application number discloses a kind of steam turbine radial journal bearing temperature measurement structure, the patent Shen
Please scheme mounting temperature sensor on bearing housing, realize temperature transducer and bearing separation.It can really reflect bearing
Temperature, while the Quick universal of temperature transducer can be completed in the case where not dismantling bearing.The temperature measurement structure can both be protected
The accuracy of bearing temperature is demonstrate,proved, while also guaranteeing that sensor is readily disassembled and changing the outfit, entirely the process is more complicated for the program, Mou Xiete
Different operating condition bearing cannot use.Another scheme is that PTC sensor is made using the resistance temperature characteristics of thermal sensitive ceramics, in certain temperature
It spends and carries out real-time monitoring in range, resistance value changes, do not change in temperature-sensitive normal range (NR) controlling system, when temperature is more than
When limit value, PTC is sensed to control system, and control system issues warning instruction.
Barium titanate-based positive temperature coefficient thermo-sensitive material is that bearing PTC stablizes and senses one of common material, but barium titanate
Curie temperature only has 120 DEG C, currently on the market curie point be more than 120 DEG C of PTC thermo-sensitive material be all it is leaded, exist in the world
Starting within 2006 complete prohibition use has lead piezo component;Present unleaded positive temperature coefficient thermo-sensitive material is mainly macromolecule material
Material, but be easy softening transform when the temperature is excessively high since the high temperature of high molecular material easily softens, in use process and even fall off, it limits
Its use scope is made.
Barium titanate-based positive temperature coefficient thermo-sensitive material existing for intelligent bearing for the thermometric sensing control function of the prior art
The problem of Curie temperature is too low and macromolecule thermo-sensitive material high temperature easily softens, a kind of Curie temperature is high and has stable high-temperature performance
The intelligent bearing and preparation method thereof with thermometric sensing control function of thermo-sensitive material urgently developed.
Summary of the invention
It is high it is an object of that present invention to provide a kind of Curie temperature and high-temperature behavior is steady to solve deficiency in the prior art
The intelligent bearing and preparation method thereof with thermometric sensing control function of fixed thermo-sensitive material.This method preparation has thermometric sensing control
The intelligent bearing Curie temperature of function is high, and high temperature resistant, caking property is strong, deformation resistant to high temperatures, and preparation method is easy to operate, is easy to scale
Metaplasia produces.
Specific technical solution of the present invention is as follows: a kind of intelligent bearing with thermometric sensing control function, including outer ring, inner ring,
Retainer and one group of rolling element, outer ring outer surface are coated with thermal sensitive ceramics coating and intervening material layer, the intervening material layer
Between outer ring outer surface and thermal sensitive ceramics coating, the intervening material layer is barium titanate/benzoxazine resin/phenolic aldehyde tree
Resin composite material layer, the ceramic coated layer end face in outer ring end and outer surface spraying thermal sensitive ceramics end face are respectively equipped with electric signal contact,
The electric signal contact and intelligence control system is electrically connected to form closed circuit, is existed by intelligence system real-time monitoring bearing
Running temperature change.
Preferably, the heat-sensitive material layer is any one modification in barium titanate, lithium titanate, lanthanium titanate and metatitanic acid praseodymium
Barium phthalate base heat-sensitive material layer.
The barium titanate/benzoxazine resin/phenolic resin composite preparation method, comprising the following steps:
(1) according to aniline in the stainless steel cauldron for being equipped with blender, condensation reflux unit: phenol: formaldehyde mole ratio 1:1.1
~1.5:1.2~2.5 sequentially add aniline and phenol, and formaldehyde is slowly added to reaction kettle after mixing evenly, and temperature is gradually increased to
3~4h of constant temperature is kept after 95~110 DEG C.Then to barium titanate powder is added in system, it is cooled to 40~50 DEG C after mixing evenly.
(2) catalyst ammonium carbonate, phenol, the formaldehyde of metering are continuously added in Xiang Shangshu stainless steel cauldron, wherein described
Phenol: formaldehyde mole ratio is 1:1.2~2.5,2~4h of constant temperature after being heated to 75~90 DEG C, and vacuum distillation removes water and remnants
Small molecule obtains barium titanate/benzoxazine resin/phenolic resin composite.
Preferably, barium titanate powder dosage described in step (1) is the 2~3% of aniline, phenol and formaldehyde gross mass.
Preferably, the dosage of catalyst ammonium carbonate described in step (2) be phenol, formaldehyde gross mass 0.5~2%.
A kind of preparation method of the intelligent bearing with thermometric sensing control function, comprising the following steps:
A, prepared by intervening material layer material: preparing barium titanate/benzoxazine resin/phenolic resin composite.
B, pretreatment and cleaning: with sand blasting unit to bearing outer ring surface sand-blasting, rough surface is formed.Then by blasting treatment
It is cleaned in bearing outer ring investment cleaning device afterwards, the axis to remove the foreign matter and greasy dirt of outer peripheral surface, after obtaining cleaning treatment
Bearing outer-ring.
C, intervening material layer sprays: with the barium titanate/benzoxazine resin/phenolic resin composite prepared in step A
It is uniformly mixed with curing agent according to mass ratio 1:1 and carries out dispersion spraying, in stepb using plasma spray system even application
It is spare to obtain prefabricated component for outer peripheral surface after sandblasting, elevated cure.
D, thermal sensitive ceramics coating spraying: existed using the modified barium phthalate base thermo-sensitive material of plasma spray system even application
On intervening material layer, the intelligent bearing outer ring with thermometric sensing control function is obtained.
E, bearing is assembled: by the intelligent bearing outer ring with thermometric sensing control function of above-mentioned steps preparation and interior snare one
It rises and is put into rolling element, according to retainer size adjusting rolling element spacing, be then charged into the intelligent bearing outer ring of step D preparation, obtain
To the intelligent bearing with thermometric sensing control function.
Preferably, cleaning device described in step B is ultrasonic cleaning equipment.
Preferably, curing agent described in step C be hexa, condition of cure be 90 DEG C/40min+100 DEG C/
40min+130℃/40min。
Beneficial effects of the present invention:
(1) intelligent bearing with thermometric sensing control function of the invention, outer ring outer surface is coated with barium titanate, lithium titanate, metatitanic acid
Any one barium phthalate base heat-sensitive material layer being modified in lanthanum and metatitanic acid praseodymium, barium titanate, lithium titanate, lanthanium titanate and metatitanic acid praseodymium
Addition improves the Curie temperature of barium titanate.The ceramic coated layer end face in outer ring end and outer surface spraying thermal sensitive ceramics end face are set respectively
There is electric signal contact, it being capable of the temperature change of accurate real-time monitoring bearing in operation by intelligence system.
(2) intelligent bearing with thermometric sensing control function of the invention, sprays between outer ring outer surface and thermal sensitive ceramics coating
It is coated with barium titanate/benzoxazine resin/phenolic resin composite intermediate layer of material, thermal sensitive ceramics coating composite wood can be enhanced
The caking property of the bed of material and bearing outer ring matrix, corrosion resistance and processability, improve the service life of bearing.
(3) the intelligent bearing preparation method with thermometric sensing control function of the invention, raw material are easy to get, and preparation method stabilization can
It leans on, is suitable for large-scale production.
Specific embodiment
For a better understanding of the present invention, below with reference to the embodiment content that the present invention is furture elucidated, but it is of the invention
Content is not limited solely to the following examples, and embodiment is not construed as limiting the scope of the present invention.
Embodiment 1
A kind of intelligent bearing with thermometric sensing control function, including outer ring, inner ring, retainer and one group of rolling element, outer ring appearance
Face is coated with thermal sensitive ceramics coating and intervening material layer, and the intervening material layer is located at outer ring outer surface and thermal sensitive ceramics coating
Between, the intervening material layer is barium titanate/benzoxazine resin/phenolic resin composite layer, and outer ring end is ceramic coated
Layer end face and outer surface spraying thermal sensitive ceramics end face are respectively equipped with electric signal contact, the electric signal contact and intelligent control system
System is electrically connected and forms closed circuit, passes through the temperature change of intelligence system real-time monitoring bearing in operation.The temperature-sensitive
Material layer is the modified barium phthalate base heat-sensitive material layer of barium titanate.
A kind of preparation method of the intelligent bearing with thermometric sensing control function, comprising the following steps:
(1) according to aniline in the stainless steel cauldron for being equipped with blender, condensation reflux unit: phenol: formaldehyde mole ratio 1:
1.1:1.2 sequentially adds aniline and phenol, and formaldehyde is slowly added to reaction kettle after mixing evenly, and temperature is protected after being gradually increased to 95 DEG C
Hold constant temperature 3h.Then to barium titanate powder is added in system, it is cooled to 40 DEG C after mixing evenly.The barium titanate powder dosage
It is the 2% of aniline, phenol and formaldehyde gross mass.
(2) catalyst ammonium carbonate, phenol, the formaldehyde of metering are continuously added in Xiang Shangshu stainless steel cauldron, wherein described
Phenol: formaldehyde mole ratio 1:1.2, the dosage of the catalyst ammonium carbonate be phenol, formaldehyde gross mass 0.5%.Add
Heat to constant temperature 2h after 75 DEG C, vacuum distillation removes water and remaining small molecule, obtains barium titanate/benzoxazine resin/phenolic resin
Composite material.
(3) it pre-processes and cleans: with sand blasting unit to bearing outer ring surface sand-blasting, forming rough surface.It then will be at sandblasting
It is cleaned in bearing outer ring investment ultrasonic cleaning equipment after reason, to remove the foreign matter and greasy dirt of outer peripheral surface, obtains cleaning treatment
Bearing outer ring afterwards.
(4) intervening material layer sprays: with the barium titanate/benzoxazine resin/phenolic resin composite wood prepared in step (2)
Material, which is uniformly mixed with curing agent hexa according to mass ratio 1:1, carries out dispersion spraying, equal using plasma spray system
Outer peripheral surface in even spraying in step (3) after sandblasting, elevated cure, condition of cure are 90 DEG C/40min+100 DEG C/40min+
130 DEG C/40min, it is spare to obtain prefabricated component.
(5) thermal sensitive ceramics coating spraying: the modified barium phthalate base thermo-sensitive material of plasma spray system even application is utilized
On intervening material layer, the intelligent bearing outer ring with thermometric sensing control function is obtained.
(6) it assembles bearing: the intelligent bearing outer ring with thermometric sensing control function of above-mentioned steps preparation and interior snare is existed
It is put into togerther rolling element, according to retainer size adjusting rolling element spacing, is then charged into outside the intelligent bearing of step (5) preparation
Circle, obtains the intelligent bearing with thermometric sensing control function.
Embodiment 2
A kind of intelligent bearing with thermometric sensing control function, including outer ring, inner ring, retainer and one group of rolling element, outer ring appearance
Face is coated with thermal sensitive ceramics coating and intervening material layer, and the intervening material layer is located at outer ring outer surface and thermal sensitive ceramics coating
Between, the intervening material layer is barium titanate/benzoxazine resin/phenolic resin composite layer, and outer ring end is ceramic coated
Layer end face and outer surface spraying thermal sensitive ceramics end face are respectively equipped with electric signal contact, the electric signal contact and intelligent control system
System is electrically connected and forms closed circuit, passes through the temperature change of intelligence system real-time monitoring bearing in operation.The temperature-sensitive
Material layer is the modified barium phthalate base heat-sensitive material layer of lithium titanate.
A kind of preparation method of the intelligent bearing with thermometric sensing control function, comprising the following steps:
(1) according to aniline in the stainless steel cauldron for being equipped with blender, condensation reflux unit: phenol: formaldehyde mole ratio 1:
1.2:1.6 sequentially adds aniline and phenol, formaldehyde is slowly added to reaction kettle after mixing evenly, after temperature is gradually increased to 100 DEG C
Keep constant temperature 3h.Then to barium titanate powder is added in system, it is cooled to 40 DEG C after mixing evenly.The barium titanate powder is used
Amount is the 2% of aniline, phenol and formaldehyde gross mass.
(2) catalyst ammonium carbonate, phenol, the formaldehyde of metering are continuously added in Xiang Shangshu stainless steel cauldron, wherein described
Phenol: formaldehyde mole ratio 1:1.6, the dosage of the catalyst ammonium carbonate be phenol, formaldehyde gross mass 1%.Heating
Constant temperature 2.5h after to 80 DEG C, vacuum distillation remove water and remaining small molecule, obtain barium titanate/benzoxazine resin/phenolic resin
Composite material.
(3) it pre-processes and cleans: with sand blasting unit to bearing outer ring surface sand-blasting, forming rough surface.It then will be at sandblasting
It is cleaned in bearing outer ring investment ultrasonic cleaning equipment after reason, to remove the foreign matter and greasy dirt of outer peripheral surface, obtains cleaning treatment
Bearing outer ring afterwards.
(4) intervening material layer sprays: with the barium titanate/benzoxazine resin/phenolic resin composite wood prepared in step (2)
Material, which is uniformly mixed with curing agent hexa according to mass ratio 1:1, carries out dispersion spraying, equal using plasma spray system
Outer peripheral surface in even spraying in step (3) after sandblasting, elevated cure, condition of cure are 90 DEG C/40min+100 DEG C/40min+
130 DEG C/40min, it is spare to obtain prefabricated component.
(5) thermal sensitive ceramics coating spraying: the modified barium phthalate base thermo-sensitive material of plasma spray system even application is utilized
On intervening material layer, the intelligent bearing outer ring with thermometric sensing control function is obtained.
(6) it assembles bearing: the intelligent bearing outer ring with thermometric sensing control function of above-mentioned steps preparation and interior snare is existed
It is put into togerther rolling element, according to retainer size adjusting rolling element spacing, is then charged into outside the intelligent bearing of step (5) preparation
Circle, obtains the intelligent bearing with thermometric sensing control function.
Embodiment 3
A kind of intelligent bearing with thermometric sensing control function, including outer ring, inner ring, retainer and one group of rolling element, outer ring appearance
Face is coated with thermal sensitive ceramics coating and intervening material layer, and the intervening material layer is located at outer ring outer surface and thermal sensitive ceramics coating
Between, the intervening material layer is barium titanate/benzoxazine resin/phenolic resin composite layer, and outer ring end is ceramic coated
Layer end face and outer surface spraying thermal sensitive ceramics end face are respectively equipped with electric signal contact, the electric signal contact and intelligent control system
System is electrically connected and forms closed circuit, passes through the temperature change of intelligence system real-time monitoring bearing in operation.The temperature-sensitive
Material layer is the modified barium phthalate base heat-sensitive material layer of lanthanium titanate.
A kind of preparation method of the intelligent bearing with thermometric sensing control function, comprising the following steps:
(1) according to aniline in the stainless steel cauldron for being equipped with blender, condensation reflux unit: phenol: formaldehyde mole ratio 1:
1.4:2.0 sequentially adds aniline and phenol, formaldehyde is slowly added to reaction kettle after mixing evenly, after temperature is gradually increased to 105 DEG C
Keep constant temperature 3.5h.Then to barium titanate powder is added in system, it is cooled to 48 DEG C after mixing evenly.The barium titanate powder
Dosage is the 3% of aniline, phenol and formaldehyde gross mass.
(2) catalyst ammonium carbonate, phenol, the formaldehyde of metering are continuously added in Xiang Shangshu stainless steel cauldron, wherein described
Phenol: formaldehyde mole ratio 1:2.0, the dosage of the catalyst ammonium carbonate be phenol, formaldehyde gross mass 1.5%.Add
Heat to constant temperature 3.5h after 85 DEG C, vacuum distillation removes water and remaining small molecule, obtains barium titanate/benzoxazine resin/phenolic aldehyde tree
Resin composite material.
(3) it pre-processes and cleans: with sand blasting unit to bearing outer ring surface sand-blasting, forming rough surface.It then will be at sandblasting
It is cleaned in bearing outer ring investment ultrasonic cleaning equipment after reason, to remove the foreign matter and greasy dirt of outer peripheral surface, obtains cleaning treatment
Bearing outer ring afterwards.
(4) intervening material layer sprays: with the barium titanate/benzoxazine resin/phenolic resin composite wood prepared in step (2)
Material, which is uniformly mixed with curing agent hexa according to mass ratio 1:1, carries out dispersion spraying, equal using plasma spray system
Outer peripheral surface in even spraying in step (3) after sandblasting, elevated cure, condition of cure are 90 DEG C/40min+100 DEG C/40min+
130 DEG C/40min, it is spare to obtain prefabricated component.
(5) thermal sensitive ceramics coating spraying: the modified barium phthalate base thermo-sensitive material of plasma spray system even application is utilized
On intervening material layer, the intelligent bearing outer ring with thermometric sensing control function is obtained.
(6) it assembles bearing: the intelligent bearing outer ring with thermometric sensing control function of above-mentioned steps preparation and interior snare is existed
It is put into togerther rolling element, according to retainer size adjusting rolling element spacing, is then charged into outside the intelligent bearing of step (5) preparation
Circle, obtains the intelligent bearing with thermometric sensing control function.
Embodiment 4
A kind of intelligent bearing with thermometric sensing control function, including outer ring, inner ring, retainer and one group of rolling element, outer ring appearance
Face is coated with thermal sensitive ceramics coating and intervening material layer, and the intervening material layer is located at outer ring outer surface and thermal sensitive ceramics coating
Between, the intervening material layer is barium titanate/benzoxazine resin/phenolic resin composite layer, and outer ring end is ceramic coated
Layer end face and outer surface spraying thermal sensitive ceramics end face are respectively equipped with electric signal contact, the electric signal contact and intelligent control system
System is electrically connected and forms closed circuit, passes through the temperature change of intelligence system real-time monitoring bearing in operation.The temperature-sensitive
Material layer is the modified barium phthalate base heat-sensitive material layer of metatitanic acid praseodymium.
A kind of preparation method of the intelligent bearing with thermometric sensing control function, comprising the following steps:
(1) according to aniline in the stainless steel cauldron for being equipped with blender, condensation reflux unit: phenol: formaldehyde mole ratio 1:
1.5:2.5 sequentially adds aniline and phenol, formaldehyde is slowly added to reaction kettle after mixing evenly, after temperature is gradually increased to 110 DEG C
Keep constant temperature 4h.Then to barium titanate powder is added in system, it is cooled to 50 DEG C after mixing evenly.The barium titanate powder is used
Amount is the 3% of aniline, phenol and formaldehyde gross mass.
(2) catalyst ammonium carbonate, phenol, the formaldehyde of metering are continuously added in Xiang Shangshu stainless steel cauldron, wherein described
Phenol: formaldehyde mole ratio 1:2.5, the dosage of the catalyst ammonium carbonate be phenol, formaldehyde gross mass 2%.Heating
Constant temperature 4h after to 90 DEG C, vacuum distillation remove water and remaining small molecule, it is multiple to obtain barium titanate/benzoxazine resin/phenolic resin
Condensation material.
(3) it pre-processes and cleans: with sand blasting unit to bearing outer ring surface sand-blasting, forming rough surface.It then will be at sandblasting
It is cleaned in bearing outer ring investment ultrasonic cleaning equipment after reason, to remove the foreign matter and greasy dirt of outer peripheral surface, obtains cleaning treatment
Bearing outer ring afterwards.
(4) intervening material layer sprays: with the barium titanate/benzoxazine resin/phenolic resin composite wood prepared in step (2)
Material, which is uniformly mixed with curing agent hexa according to mass ratio 1:1, carries out dispersion spraying, equal using plasma spray system
Outer peripheral surface in even spraying in step (3) after sandblasting, elevated cure, condition of cure are 90 DEG C/40min+100 DEG C/40min+
130 DEG C/40min, it is spare to obtain prefabricated component.
(5) thermal sensitive ceramics coating spraying: the modified barium phthalate base thermo-sensitive material of plasma spray system even application is utilized
On intervening material layer, the intelligent bearing outer ring with thermometric sensing control function is obtained.
(6) it assembles bearing: the intelligent bearing outer ring with thermometric sensing control function of above-mentioned steps preparation and interior snare is existed
It is put into togerther rolling element, according to retainer size adjusting rolling element spacing, is then charged into outside the intelligent bearing of step (5) preparation
Circle, obtains the intelligent bearing with thermometric sensing control function.
Comparative example 1
Thermal sensitive ceramics coating is not only had to, other are the same as embodiment 1.
Comparative example 2
Barium titanate/benzoxazine resin/phenolic resin composite intermediary layer is not only had to, other are the same as embodiment 1.
As a result it compares:
Above-described embodiment 1~4 and comparative example 1~2 are tested respectively, test performance index such as table 1.
Testing result shows: outer ring outer surface is coated with the titanium of barium titanate, lithium titanate, lanthanium titanate and the modification in metatitanic acid praseodymium
Sour barium base heat-sensitive material layer improves the Curie temperature of barium titanate, detailed in Example 1~4 and comparative example 1.Outer ring end spraying pottery
Enamel coating end face and outer surface spraying thermal sensitive ceramics end face are respectively equipped with electric signal contact, can accurately be supervised in real time by intelligence system
The temperature change of bearing in operation is surveyed, resistivity, thermal coefficient and the lift resistance ratio of bearing all increase, detailed in Example 1
~4 and comparative example 1~2.Barium titanate/benzoxazine resin/phenolic aldehyde tree is coated between outer ring outer surface and thermal sensitive ceramics coating
The intermediate layer of material of resin composite material can enhance the caking property, resistance to of thermal sensitive ceramics coating composite material layer and bearing outer ring matrix
Corrosivity and processability improve the service life of bearing, detailed in Example 1~4 and comparative example 2.