CN113738771A - Bearing system with oil film pressure detection function - Google Patents
Bearing system with oil film pressure detection function Download PDFInfo
- Publication number
- CN113738771A CN113738771A CN202111034249.0A CN202111034249A CN113738771A CN 113738771 A CN113738771 A CN 113738771A CN 202111034249 A CN202111034249 A CN 202111034249A CN 113738771 A CN113738771 A CN 113738771A
- Authority
- CN
- China
- Prior art keywords
- capillary
- outer ring
- oil
- oil film
- roller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 22
- 239000003921 oil Substances 0.000 claims description 109
- 239000010720 hydraulic oil Substances 0.000 claims description 63
- 238000007789 sealing Methods 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 21
- 230000008569 process Effects 0.000 abstract description 10
- 239000010687 lubricating oil Substances 0.000 description 24
- 230000009286 beneficial effect Effects 0.000 description 10
- 230000006872 improvement Effects 0.000 description 9
- 238000011160 research Methods 0.000 description 5
- 238000005299 abrasion Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 2
- 238000000691 measurement method Methods 0.000 description 2
- 230000005641 tunneling Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000005305 interferometry Methods 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Classifications
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C41/00—Other accessories, e.g. devices integrated in the bearing not relating to the bearing function as such
- F16C41/005—Fluid passages not relating to lubrication or cooling
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/50—Other types of ball or roller bearings
- F16C19/505—Other types of ball or roller bearings with the diameter of the rolling elements of one row differing from the diameter of those of another row
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/58—Raceways; Race rings
- F16C33/583—Details of specific parts of races
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L7/00—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2233/00—Monitoring condition, e.g. temperature, load, vibration
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Abstract
The invention relates to a bearing system with oil film pressure detection function, comprising: the roller bearing comprises an outer ring and an inner ring, wherein raceways are arranged on the outer ring and the inner ring, and rollers are arranged between the raceways of the outer ring and the inner ring; the outer ring and/or the inner ring are/is provided with capillary holes, the capillary holes extend along the inner and outer directions, the outer ends of the capillary holes are provided with piston cavities, pistons are arranged in the piston cavities, the inner ends of the capillary holes are communicated with the roller paths, so that when the rollers move to the capillary holes, oil film pressure between the rollers and the outer ring and/or the inner ring is transmitted to the pistons, and the open ends of the outer ends of the piston cavities are provided with oil pressure sensor detection interfaces for connecting oil pressure sensors to detect oil pressure on one side of the pistons, back to the capillary holes. Oil film pressure between the roller and the outer ring and/or the inner ring is converted into oil pressure on one side of the piston, which is back to the capillary hole, the oil pressure measured by the oil pressure sensor is processed to obtain the oil film pressure between the roller and the outer ring and/or the inner ring, and the oil film pressure in the running process of the bearing can be measured more accurately.
Description
Technical Field
The invention relates to a bearing system with an oil film pressure detection function.
Background
The bearing mainly comprises an inner ring and an outer ring, wherein raceways are arranged on the inner ring and the outer ring, a roller is assembled between the raceways of the inner ring and the outer ring, the roller and the raceways are lubricated by lubricating oil, and a lubricating oil film is an indispensable part in the engineering field, particularly for the bearing design, the lubricating oil film is an extremely important research content, and for the main bearing of the shield machine, the research on the lubricating oil film has important significance for reducing the surface wear between main bearing friction solids and improving the service life of the main bearing of the shield machine.
In the prior art, the research on a bearing lubricating oil film is mainly based on theoretical research, so that the design work of the bearing is guided, and when the oil film is analyzed, the oil film pressure is obtained mainly by measuring the thickness of the oil film. The method for measuring the thickness of the oil film is used for measuring the thickness of the lubricating oil film of the bearing, such as the ultrasonic measurement method and the ultrasonic measurement system disclosed in the Chinese invention patent application with the application publication number of CN112595271A, the thickness of the lubricating oil film in the running main bearing is measured by using the ultrasonic measurement method, and the method solves and obtains the thickness of the oil film by establishing the quantitative relation between the hysteresis phase angle and the reflection coefficient obtained by measurement and using the linear relation between the hysteresis phase angle and the thickness of the oil film.
In addition, methods for measuring the oil film thickness include optical interferometry, high-speed camera measurement, and the like.
The method for measuring the oil film bearing capacity of the micro sliding block bearing disclosed in the Chinese patent with the publication number of CN102707038B by the optical interference method comprises the steps of forming a surface contact pair by a micro sliding block and a glass disc which are arranged on a micro sliding block bearing oil film measuring instrument, adding lubricating oil on a contact surface, measuring the oil film thickness by using the optical interference method, and obtaining the oil film bearing capacity on the basis of theoretical calculation.
Although the oil film thickness of the bearing can be measured, the oil film pressure of the bearing in the operation process cannot be directly measured, and the method for obtaining the oil film pressure by measuring the oil film thickness cannot be applied to the bearing with low speed and heavy load, such as a main bearing of a shield machine.
Disclosure of Invention
The invention aims to provide a bearing system with an oil film pressure detection function, which is used for detecting the oil film pressure of a bearing in the running process.
In order to achieve the purpose, the technical scheme of the bearing system with the oil film pressure detection function provided by the invention is as follows: a bearing system having an oil film pressure detecting function, comprising:
the roller bearing comprises an outer ring and an inner ring, wherein raceways are arranged on the outer ring and the inner ring, and rollers are arranged between the raceways of the outer ring and the inner ring;
the outer ring and/or the inner ring are/is provided with capillary holes, the capillary holes extend along the inner direction and the outer direction, the outer ends of the capillary holes are provided with piston cavities, pistons are arranged in the piston cavities, the inner ends of the capillary holes are communicated with the roller paths, so that when the rollers move to the capillary holes, oil film pressure between the rollers and the outer ring and/or the inner ring is transmitted to the pistons, and the open ends of the outer ends of the piston cavities are provided with oil pressure sensor detection interfaces for connecting oil pressure sensors to detect oil pressure of one side of the pistons, which faces away from the capillary holes.
The beneficial effects are that: according to the bearing system with the oil film pressure detection function, the capillary hole is formed in the outer ring and/or the inner ring, the piston is arranged at the outer end of the capillary hole, so that when the roller moves to the capillary hole, the oil film pressure between the roller and the outer ring and/or the inner ring is transmitted to the piston, the oil film pressure between the roller and the outer ring and/or the inner ring is converted into the oil pressure on the side, back to the capillary hole, of the piston, the oil pressure measured by the oil pressure sensor is processed, the oil film pressure between the roller and the outer ring and/or the inner ring can be obtained, the operation is simple, and the oil film pressure in the bearing operation process can be accurately measured.
As a further improvement, the outer ring is provided with the capillary holes, and the capillary holes are straight holes.
The beneficial effects are that: the outer ring keeps static with a shield body of the shield tunneling machine in the radial direction of the outer ring, and the capillary holes are formed in the outer ring, so that the arrangement of an oil pressure sensor is facilitated.
As a further improvement, the rollers include a main pushing roller, an auxiliary pushing roller and a radial roller, and the capillary holes are formed in the outer ring corresponding to at least one of the main pushing roller, the auxiliary pushing roller and the radial roller.
The beneficial effects are that: due to the arrangement of the three rows of rollers, the area of direct contact between the inner ring and the outer ring is reduced, and friction is reduced.
As a further improvement, the outer ring is provided with main push capillary holes, auxiliary push capillary holes and radial capillary holes corresponding to the main push rollers, the auxiliary push rollers and the radial rollers respectively.
The beneficial effects are that: capillary holes are arranged corresponding to the three rows of rollers, so that the measured oil film pressure is more comprehensive and accurate.
As a further improvement, the main pushing capillary hole, the auxiliary pushing capillary hole and the radial capillary hole are uniformly distributed along the circumferential direction of the outer ring.
The beneficial effects are that: the main pushing capillary hole, the auxiliary pushing capillary hole and the radial capillary hole are respectively provided with a plurality of capillary holes, so that oil film pressures of a plurality of positions between the corresponding roller and the outer ring can be measured, and a measuring blind area is avoided.
As a further improvement, the oil pressure sensor includes a hydraulic oil pipe, and the piston chamber is communicated with the hydraulic oil pipe.
The beneficial effects are that: and a hydraulic oil pipe is arranged, so that the connection between the piston cavity and the oil pressure sensor is facilitated.
As a further improvement, the hydraulic oil pipe is a flexible pipe.
The beneficial effects are that: the hydraulic oil pipe is a flexible pipe, so that the bearing is convenient to adapt to the shaking of the outer ring of the bearing in the working process.
As a further improvement, the inner end of the hydraulic oil pipe is connected with the outer ring flange, so that the hydraulic oil pipe is communicated with the piston cavity, and the outer end of the hydraulic oil pipe is connected with the oil pressure sensor.
The beneficial effects are that: the hydraulic oil pipe is connected with the outer ring flange, and the connection is simple.
As a further improvement, the hydraulic oil pipe is filled with hydraulic oil.
The beneficial effects are that: so that the oil pressure of the hydraulic oil in the hydraulic oil pipe is transferred to the lubricating oil in the capillary hole through the piston when the corresponding roller is far away from the capillary hole.
As a further improvement, a sealing gasket is arranged between the piston and the piston cavity.
The beneficial effects are that: the lubricating oil is prevented from flowing into the hydraulic oil pipe, so that the loss of the lubricating oil is caused to increase the abrasion between the corresponding roller and the outer ring.
Drawings
FIG. 1 is a schematic structural diagram of a bearing system with oil film pressure detection function according to the present invention;
FIG. 2 is a schematic view of the piston assembly of FIG. 1;
FIG. 3 is a schematic view of the location of the primary push capillary in FIG. 1;
FIG. 4 is a schematic illustration of the location of the secondary push capillary in FIG. 1;
fig. 5 is a schematic view of the location of the radial capillary holes in fig. 1.
Description of reference numerals: 1. an outer ring; 11. a raceway; 2. an inner ring; 3. a main push roller; 31. mainly pushing capillary pores; 4. a secondary pushing roller; 41. secondary pushing capillary pores; 5. a radial roller; 51. radial capillary pores; 6. a holder; 7. a piston; 71. a piston cavity; 72. a sealing gasket; 8. an oil pressure sensor; 9. a hydraulic oil pipe; 91. and (5) hydraulic oil.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, which may be present in the embodiments of the present invention, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. 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, the statement that "comprises an … …" is intended to indicate that there are additional elements of the same process, method, article, or apparatus that comprise the element.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" when they are used are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.
In the description of the present invention, unless otherwise specifically stated or limited, the term "provided" may be used in a broad sense, for example, the object of "provided" may be a part of the body, or may be arranged separately from the body and connected to the body, and the connection may be detachable or non-detachable. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.
The present invention will be described in further detail with reference to examples.
as shown in fig. 1 to 5, the bearing system with oil film pressure detection function includes an outer ring 1 and an inner ring 2, the inner ring 2 and the outer ring 1 are rotatably assembled together, and a main push roller 3, an auxiliary push roller 4 and a radial roller 5 are installed between the inner ring 2 and the outer ring 1 through a retainer 6.
The outer ring 1 is circular, the outer side of the outer ring 1 is used for being fixedly assembled with a corresponding structure of a shield tunneling machine, and the inner side of the outer ring 1 is provided with a raceway 11 for rotationally assembling the inner ring 2. The outer ring 1 is provided with a plurality of main push capillary holes 31, auxiliary push capillary holes 41 and radial capillary holes 51, and the main push capillary holes 31, the auxiliary push capillary holes 41 and the radial capillary holes 51 are all provided. The main push capillary holes 31 are uniformly distributed on the right side of the main push roller 3 at intervals along the circumferential direction of the outer ring 1, and are used for allowing lubricating oil between the main push roller 3 and the outer ring 1 to enter the main push capillary holes 31 rightwards, and the main push capillary holes 31 are arranged in pairs with respect to the center of the main push roller 3 to form a main push control group. The auxiliary pushing capillary holes 41 are uniformly distributed on the left side of the auxiliary pushing roller 4 at intervals along the circumferential direction of the outer ring 1, and are used for allowing lubricating oil between the auxiliary pushing roller 4 and the outer ring 1 to enter the auxiliary pushing capillary holes 41 leftwards, and the plurality of auxiliary pushing capillary holes 41 are arranged in pairs with respect to the center of the auxiliary pushing roller 4 to form an auxiliary pushing control group. The radial capillary holes 51 are uniformly distributed at intervals along the circumferential direction of the outer ring 1, and are used for enabling lubricating oil between the radial rollers 5 and the outer ring 1 to outwards enter the radial capillary holes 51.
Each capillary hole is internally and externally communicated with the outer ring 1, the inner end of each capillary hole is communicated with the raceway 11, the outer end of each capillary hole is provided with a piston cavity 71, and an oil pressure sensor 8 is arranged corresponding to the outer end opening of each piston cavity 71. Each oil pressure sensor 8 is fixedly installed on a corresponding structure of the shield machine to advance synchronously with the outer ring 1 and is communicated with the piston chamber 71 through a hydraulic oil pipe 9. During specific implementation, bolt mounting holes are formed in the outer ring 1 at the positions of the piston cavities 71 around the corresponding piston cavities 71, the hydraulic oil pipe 9 adopts a flexible pipeline, one end, close to the outer ring 1, of the hydraulic oil pipe 9 is provided with a flange plate joint so as to be connected with the outer ring 1 through a bolt, one end, close to the oil pressure sensor 8, of the hydraulic oil pipe 9 is provided with a plug-in joint so as to be matched with the plug-in sleeve of the oil pressure sensor 8, and therefore the oil pressure sensor 8 can measure the oil pressure of hydraulic oil 91 in the hydraulic oil pipe 9.
Each piston cavity 71 is provided with a piston 7 in a guiding way, and the piston 7 is sleeved with a sealing gasket 72 to prevent lubricating oil in the corresponding capillary hole from entering the hydraulic oil 91 pipe. The piston 7 is prior art and will not be described in detail herein.
Specifically, in use, the hydraulic oil pipe 9 and the piston cavity 71 outside the piston 7 are filled with hydraulic oil 91, so that when the corresponding roller moves to the position of the capillary hole, the oil film pressure between the corresponding roller and the outer ring 1 is transferred to the piston 7 through the lubricating oil in the corresponding capillary hole, the piston 7 applies an outward force to the hydraulic oil 91 in the hydraulic oil pipe 9 to convert the oil film pressure between the corresponding roller and the outer ring 1 into the oil pressure of the hydraulic oil 91 in the hydraulic oil pipe 9, and when the corresponding roller is away from the capillary hole, the oil pressure of the hydraulic oil 91 in the hydraulic oil pipe 9 is greater than the oil pressure of the lubricating oil in the capillary hole, and the hydraulic oil 91 in the hydraulic oil pipe 9 applies an inward force to the piston 7.
In actual work, the inner wall of a pipeline which needs to be tunneled by a shield machine provided with the bearing system can apply radial load and axial load to the outer ring 1, and after the outer ring 2 receives the radial load and the axial load, pressure can be generated by oil films between the rotating main push roller 3, the rotating auxiliary push roller 4 and the rotating radial roller 5 and the outer ring 1. When the corresponding roller moves to the position of the corresponding capillary hole, due to the existence of oil film pressure, the oil film pressure between the corresponding roller and the outer ring 1 is transmitted to the piston 7 through the lubricating oil in the corresponding capillary hole, the piston 7 applies an outward acting force to the hydraulic oil 91 in the hydraulic oil pipe 9, so that the oil film pressure between the corresponding roller and the outer ring 1 is converted into the oil pressure of the hydraulic oil 91 in the hydraulic oil pipe 9, and the oil pressure sensor 8 at the position of the corresponding capillary hole measures the oil pressure of the hydraulic oil 91 in the hydraulic oil pipe 9 at the moment.
The method comprises the steps of collecting signals of an oil pressure sensor through an industrial personal computer and a collection card, analyzing pressure signals through relevant analysis software, comparing the pressure signals with a theoretical pressure value, analyzing whether oil film pressure of a main bearing of the shield machine is formed or not, analyzing whether the oil film pressure change condition accords with theoretical calculation or not, and judging whether abrasion exists in the main bearing or not. If the measured actual oil film pressure is far smaller than the theoretical value, the lubricating oil film between the corresponding roller and the outer ring 1 is thin, and further the abrasion phenomenon possibly occurs between the corresponding roller and the outer ring 1, and the main bearing needs to be overhauled. If the measured actual oil film pressure is far larger than the theoretical value, the lubricating oil film between the corresponding roller and the outer ring 1 is thicker, and further the corresponding roller and the outer ring 1 are worn, and the main bearing needs to be overhauled.
The main bearing can be applied to a shield machine to carry out actual work, and can also be used for carrying out an oil film pressure test independently. In the measuring process, different parameters such as the rotating speed, the axial load, the radial load and the lubricating oil specification of a main bearing of the shield machine are changed, the real-time detection of the lubricating oil film pressure of the main bearing can be realized, oil film pressure change curves under different working conditions are obtained, and the oil film pressure change curves are analyzed and theoretically verified, so that data support is provided for bearing design research and field construction managers.
According to the bearing system with the oil film pressure detection function, the capillary holes are formed in the outer ring 1 and/or the inner ring 2, the piston 7 is arranged at the outer end of each capillary hole, so that when the roller moves to the capillary holes, the oil film pressure between the roller and the outer ring 1 and/or the inner ring 2 is transmitted to the piston, the oil film pressure between the roller and the outer ring 1 and/or the inner ring 2 is converted into the oil pressure on the side, back to the capillary holes, of the piston 7, the oil pressure measured by the oil pressure sensor 8 is processed, the oil film pressure between the roller and the outer ring 1 and/or the inner ring 2 can be obtained, the operation is simple, and the oil film pressure in the bearing operation process can be accurately measured.
the present embodiment is different from embodiment 1 in that in embodiment 1, the oil film pressure between the corresponding roller and the outer ring 1 is transmitted to the piston 7 through the lubricating oil in the corresponding capillary hole, and the piston 7 applies an outward force to the hydraulic oil 91 in the hydraulic oil pipe 9, so as to convert the oil film pressure between the corresponding roller and the outer ring 1 into the oil pressure of the hydraulic oil 91 in the hydraulic oil pipe 9. In the embodiment, the hydraulic oil pipe adopts an expandable and contractible flexible pipe, in actual work, when the corresponding roller moves to the position of the corresponding capillary hole, due to the existence of oil film pressure, oil lubrication oil between the corresponding roller and the outer ring enters the corresponding capillary hole, the lubrication oil in the capillary hole pushes the piston to realize micro outward movement so as to compress hydraulic oil in the hydraulic oil pipe, the oil film pressure between the corresponding roller and the outer ring is converted into the oil pressure of the hydraulic oil in the hydraulic oil pipe, and the oil pressure of the hydraulic oil in the hydraulic oil pipe is measured by the oil pressure sensor at the position of the corresponding capillary hole at the moment. And when the corresponding roller is far away from the capillary hole, the oil pressure in the hydraulic oil pipe is greater than the pressure of the lubricating oil in the capillary hole, and the hydraulic oil in the hydraulic oil pipe pushes the piston to reset.
the difference between this embodiment and embodiment 1 is that in embodiment 1, the outer end of each capillary hole is provided with a piston cavity 71 for guiding the piston 7. In this embodiment, each capillary hole is a straight hole with a constant inner diameter, a rigid connection pipe section is arranged at one end of the hydraulic oil pipe close to the outer ring, the rigid connection pipe section extends along the axial direction of the outer ring and is connected with a flange of the outer ring, and the piston is assembled in the rigid connection pipe section in a guiding manner.
the present embodiment is different from embodiment 1 in that in embodiment 1, the hydraulic oil pipe 9 is flange-connected to the outer ring 1. In the embodiment, one end of the hydraulic oil pipe close to the outer ring is hermetically inserted into the piston cavity.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention, the scope of the present invention is defined by the appended claims, and all structural changes that can be made by using the contents of the description and the drawings of the present invention are intended to be embraced therein.
Claims (10)
1. A bearing system having an oil film pressure detecting function, comprising:
the roller bearing comprises an outer ring (1) and an inner ring (2), wherein raceways (11) are arranged on the outer ring (1) and the inner ring (2), and rollers are arranged between the raceways (11) of the outer ring (1) and the inner ring (2);
it is characterized in that the preparation method is characterized in that,
be equipped with the capillary on outer lane (1) and/or inner circle (2), the capillary extends along inside and outside direction, and the outer end of capillary is equipped with piston chamber (71), is equipped with piston (7) in piston chamber (71), the inner of capillary with raceway (11) intercommunication for when the roller moves to the capillary, make the oil film pressure between roller and outer lane (1) and/or inner circle (2) transmit to piston (7), and the outer end open end of piston chamber (71) is equipped with oil pressure sensor (8) and detects the interface, is used for connecting oil pressure sensor (8), in order to detect the oil pressure of one side of piston (7) dorsad capillary.
2. The bearing system with oil film pressure detection function according to claim 1, wherein the outer ring (1) is provided with the capillary holes, and the capillary holes are straight holes.
3. The bearing system with oil film pressure detection function according to claim 2, wherein the rollers comprise a main push roller (3), an auxiliary push roller (4) and a radial roller (5), and the capillary hole is formed in the outer ring (1) corresponding to at least one of the main push roller (3), the auxiliary push roller (4) and the radial roller (5).
4. The bearing system with oil film pressure detection function according to claim 3, wherein the outer ring (1) is provided with a main push capillary hole (31), an auxiliary push capillary hole (41) and a radial capillary hole (51) corresponding to the main push roller (3), the auxiliary push roller (4) and the radial roller (5), respectively.
5. The bearing system with the oil film pressure detection function according to claim 4, wherein a plurality of the primary push capillary holes (31), the secondary push capillary holes (41) and the radial capillary holes (51) are uniformly distributed along the circumferential direction of the outer ring (1).
6. The bearing system with oil film pressure detecting function according to any one of claims 1 to 5, wherein the oil pressure sensor (8) includes a hydraulic oil pipe (9), and the piston chamber (71) communicates with the hydraulic oil pipe (9).
7. The bearing system with oil film pressure detection function according to claim 6, wherein the hydraulic oil pipe (9) is a flexible pipe.
8. The bearing system with oil film pressure detecting function according to claim 7, wherein the inner end of the hydraulic oil pipe (9) is flanged with the outer ring (1) so that the hydraulic oil pipe (9) communicates with the piston chamber (71), and the outer end is connected with the oil pressure sensor (8).
9. The bearing system with oil film pressure detecting function according to claim 7 or 8, wherein the hydraulic oil pipe (9) is filled with hydraulic oil (91).
10. The bearing system with oil film pressure detection function according to claim 1, wherein a sealing gasket (72) is arranged between the piston (7) and the piston cavity (71).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111034249.0A CN113738771A (en) | 2021-09-03 | 2021-09-03 | Bearing system with oil film pressure detection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111034249.0A CN113738771A (en) | 2021-09-03 | 2021-09-03 | Bearing system with oil film pressure detection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113738771A true CN113738771A (en) | 2021-12-03 |
Family
ID=78735696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111034249.0A Pending CN113738771A (en) | 2021-09-03 | 2021-09-03 | Bearing system with oil film pressure detection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113738771A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08334425A (en) * | 1995-06-07 | 1996-12-17 | Mitsubishi Heavy Ind Ltd | Fluid pressure detecting device for bearing surface |
| JP2012154472A (en) * | 2011-01-28 | 2012-08-16 | Mitsubishi Heavy Ind Ltd | Maintenance apparatus for bearing |
| CN103671581A (en) * | 2013-12-18 | 2014-03-26 | 大连理工大学 | Main bearing component with embedded sensors of full face rock heading machine |
| WO2014048594A1 (en) * | 2012-09-25 | 2014-04-03 | Schaeffler Technologies AG & Co. KG | Lubricating unit for a bearing |
| DE102013016949A1 (en) * | 2012-10-12 | 2014-04-17 | Aktiebolaget Skf | Roller bearing for at least two rows of rolling elements, in particular for tunneling |
| US20190242434A1 (en) * | 2018-02-06 | 2019-08-08 | Aktiebolaget Skf | Slewing roller bearing with at least two rows of roller elements |
-
2021
- 2021-09-03 CN CN202111034249.0A patent/CN113738771A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08334425A (en) * | 1995-06-07 | 1996-12-17 | Mitsubishi Heavy Ind Ltd | Fluid pressure detecting device for bearing surface |
| JP2012154472A (en) * | 2011-01-28 | 2012-08-16 | Mitsubishi Heavy Ind Ltd | Maintenance apparatus for bearing |
| WO2014048594A1 (en) * | 2012-09-25 | 2014-04-03 | Schaeffler Technologies AG & Co. KG | Lubricating unit for a bearing |
| DE102013016949A1 (en) * | 2012-10-12 | 2014-04-17 | Aktiebolaget Skf | Roller bearing for at least two rows of rolling elements, in particular for tunneling |
| CN103671581A (en) * | 2013-12-18 | 2014-03-26 | 大连理工大学 | Main bearing component with embedded sensors of full face rock heading machine |
| US20190242434A1 (en) * | 2018-02-06 | 2019-08-08 | Aktiebolaget Skf | Slewing roller bearing with at least two rows of roller elements |
Non-Patent Citations (1)
| Title |
|---|
| 孙以材，刘玉岭等: "《压力传感器的设计制造与应用》", vol. 1, 冶金工业出版社, pages: 585 - 588 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9304057B2 (en) | Device and method for testing rigidity and non-linear relationship of coupling interface for cylindrical fitting | |
| CN1321321C (en) | Method and device for measuring friction force of bearing under tiny load | |
| EP3492897B1 (en) | Precision measurement device for force standard machine, and force value comparison machine | |
| CN102175166A (en) | Device for detecting thickness of oil film between cylinder sleeve and piston ring of diesel engine | |
| CN105626698B (en) | Sealing device and bearing assembly with sealing device | |
| WO2023201969A1 (en) | Spacer ring assembly and bearing assembly | |
| WO2017183750A1 (en) | Apparatus and method for measuring tooth profile of cycloid gear | |
| CN106500643A (en) | The negative clearance wheel measuring method of third generation hub-bearing unit | |
| CN113738771A (en) | Bearing system with oil film pressure detection function | |
| CN110132497B (en) | Mechanical seal state monitoring device | |
| CN113237577A (en) | Real-time bearing axial load detection device and shield tunneling machine | |
| CN106524977A (en) | Three-point measurement method for negative clearance of third-generation hub bearing unit | |
| CN110639964B (en) | Detection element main body structure for acquiring gap information between rolling mill housing and bearing seat in real time | |
| CN210071568U (en) | Variable working condition reciprocating friction wear testing machine based on double-freedom-degree flexible hinge | |
| CN216691703U (en) | Hydraulic cylinder online detection sealing leakage device and sealing clearance adjusting device thereof | |
| CN208653462U (en) | Spindle inclination mechanism for testing | |
| CN203822539U (en) | Torque self-checking inner curve hydraulic motor | |
| CN216791459U (en) | Pressure sensor | |
| Wang et al. | Research on wireless nondestructive monitoring method for film pressure of water-lubricated bearing | |
| CN111804737B (en) | Strain type plate shape gauge | |
| CN207515753U (en) | Deep hole detection self-centering supporting mechanism | |
| CN103322036A (en) | Stainless steel angular contact ball bearing | |
| CN210440416U (en) | Novel elastic gasket structure | |
| CN113447429A (en) | Friction test device and friction test method | |
| CN202900993U (en) | Enhanced oil-free lubrication rolling bearing with dustproof sealing effect |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |