CN116182771A - Turbocharger bearing axial clearance measuring instrument and measuring method thereof - Google Patents
Turbocharger bearing axial clearance measuring instrument and measuring method thereof Download PDFInfo
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- CN116182771A CN116182771A CN202310119610.2A CN202310119610A CN116182771A CN 116182771 A CN116182771 A CN 116182771A CN 202310119610 A CN202310119610 A CN 202310119610A CN 116182771 A CN116182771 A CN 116182771A
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- 238000000034 method Methods 0.000 title claims description 9
- 238000001514 detection method Methods 0.000 claims abstract description 39
- 238000006073 displacement reaction Methods 0.000 claims abstract description 22
- 238000005259 measurement Methods 0.000 claims description 16
- 238000004378 air conditioning Methods 0.000 claims 3
- 230000000007 visual effect Effects 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/16—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring distance of clearance between spaced objects
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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- General Physics & Mathematics (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention relates to a turbocharger bearing axial clearance measuring instrument, which comprises a controller, and a displacement sensor, a pressure display screen and a clearance display screen which are all connected with the controller, and further comprises: the fixing device is used for fixing the bearing, and the displacement sensor and the pressure sensor are positioned at two ends of the fixing device; the detection mandrel is movably inserted into the bearing, and the bottom of the detection mandrel is movably abutted against the pressure sensor; the adjusting nut is fixed at the top of the detecting mandrel and is movably propped against the displacement sensor; the thrust device is arranged opposite to the pressure sensor and is used for pressing the pressure sensor on the detection mandrel; the adjusting nut is used for eliminating friction errors in the measured bearing according to the thrust provided by the thrust device, and the displacement sensor is used for reading the play value of the bearing. The measuring instrument has the advantages of visual and reliable measured data, simple operation, good repeatability, high measuring precision, high measuring efficiency and simple structure.
Description
Technical Field
The invention relates to a clearance measuring instrument, in particular to a turbocharger bearing axial clearance measuring instrument and a measuring method thereof.
Background
The turbocharger bearing is a nonstandard double-row bearing and consists of an outer ring and two inner rings, and the magnitude of the axial clearance of the turbocharger bearing is related to the dynamic performance of the bearing in the running process, so that important control is needed. The turbocharger clearance diagnosis tool comprises a clamping device, a universal connecting rod and a lever meter, wherein one end of the universal connecting rod is hinged to the clamping device, and the lever meter is fixed at the other end of the universal connecting rod; the clamping device comprises a chuck and an adjusting screw, wherein the front end of the chuck is provided with an arc clamping groove for clamping an air inlet pipe orifice of the supercharger casing, mounting holes for connecting positioning pins are respectively formed in the chuck at two sides corresponding to the arc clamping groove, a screw seat is further formed in the bottom surface of the chuck, and the adjusting screw is in threaded connection with the screw seat. The universal rod needs to be adjusted for many times to detect different positions during detection, and the detection is installed on the turbocharger, so that the detection is very inconvenient, the detection efficiency is low, and the defects that the measurement and positioning are unreliable, the gestures of measurement personnel are not uniform, the measurement force is not easy to control and the like exist in a manual measurement mode, so that the measurement system is unstable, and the stability of the product quality is influenced.
Disclosure of Invention
In order to solve the problems, the invention provides a turbocharger bearing axial clearance measuring instrument with good measuring accuracy, high measuring efficiency and small influence of personnel factors, which comprises the following specific technical scheme:
the utility model provides a turbocharger bearing axial play measuring apparatu, includes controller and all with displacement sensor, pressure display screen and play display screen that the controller is connected still includes: the fixing device is used for fixing the bearing, and the displacement sensor and the pressure sensor are positioned at two ends of the fixing device; the detection mandrel is movably inserted into the bearing, and the bottom of the detection mandrel is movably propped against the pressure sensor; the adjusting nut is fixed at the top of the detection mandrel and is movably propped against the displacement sensor; the thrust device is arranged opposite to the pressure sensor and used for pressing the pressure sensor on the detection mandrel; the adjusting nut is used for eliminating friction errors in the measured bearing according to the thrust provided by the thrust device, and the displacement sensor is used for reading the play value of the bearing.
Preferably, the fixing device includes: the fixed block is provided with a fixed groove for fixing the bearing; and the elbow clamp is positioned at one side of the fixed block and used for pressing the bearing on the fixed groove.
Further, the fixing groove is a V-shaped groove.
Preferably, the method further comprises: and the limiting piece is fixed at one end of the fixed block.
The limiting piece is provided with a limiting groove matched with the bearing, and the bearing is movably inserted into the limiting groove.
Preferably, the thrust device comprises: the thrust lever is provided with a thrust shaft which is movably propped against the pressure sensor; the thrust lever is hinged to the thrust seat and is positioned on one side of the thrust shaft; the load block is inserted into one end of the thrust lever in a sliding manner and is positioned on one side of the thrust seat; and the loading spanner is movably inserted at the other end of the thrust lever and is used for enabling the pressure sensor to be in a free state.
Preferably, the fixing device is vertically arranged, so that the bearing, the detection mandrel and the pressure sensor are in a vertical state.
The measuring method of the axial clearance measuring instrument of the turbocharger bearing comprises the following steps:
a detection mandrel is movably arranged on the bearing, and the bearing is vertically fixed; one end of the detection mandrel is provided with an adjusting nut, the adjusting nut is movably abutted against the displacement sensor, and the other end of the detection mandrel is movably abutted against the pressure sensor;
locking the loading wrench to enable the pressure sensor to be in a free state, wherein the pressure is displayed as 0;
releasing the loading wrench to enable the pressure sensor to be pressed, and displaying the pressure value at the same time;
maintaining the loading wrench in a loosening state, and adjusting the position of the load block on the thrust lever to enable the number of pressure displays to reach a specified value;
locking a loading wrench, lightly rotating an adjusting nut, eliminating the friction error in the bearing to be tested, and pressing a zero setting key after the bearing is stable, so that the play value is displayed as 0;
and releasing the loading wrench, pushing the bearing by the thrust lever through the pressure sensor, and reading out the play value, wherein the play value is the axial play of the bearing to be tested.
Preferably, the average value is measured as the detection result in a plurality of times.
Compared with the prior art, the invention has the following beneficial effects:
the axial clearance measuring instrument for the turbocharger bearing provided by the invention adopts a digital measurement mode, has the advantages of visual and reliable measurement data and simple operation, and solves the problems of inconsistent measurement gestures, inconsistent measurement load, reading error and the like of different people.
Drawings
FIG. 1 is an elevation view of a turbocharger bearing axial play meter;
FIG. 2 is a rear view of a turbocharger bearing axial play meter;
FIG. 3 is a top view of a turbocharger bearing axial play meter;
fig. 4 is a schematic view of the structure of the fixture fixing bearing.
Detailed Description
The invention will now be further described with reference to the accompanying drawings.
Example 1
As shown in fig. 1 to 4, a turbocharger bearing axial play measuring instrument includes a controller 21, a displacement sensor 5, a pressure sensor 6, a pressure display screen 23 and a play display screen 22, which are all connected with the controller 21, as well as a fixing device, a detection spindle 41, an adjusting nut 42 and a thrust device 7. The pressure display screen 23 is used for displaying the pressure value detected by the pressure sensor 6, the clearance display screen is used for displaying the clearance value detected by the displacement sensor 5, the controller 21 is also provided with a zero setting button 24 for setting the display data of the clearance to zero, and the bearing clearance is conveniently and directly displayed after zero correction.
Wherein the controller 21, the displacement sensor 5, the pressure sensor 6, the pressure display screen 23, the play display screen 22, the fixing device and the thrust device 7 are all fixed on the frame 1.
The fixing device comprises a fixing block 31, an elbow clamp 32 and a limiting piece 33, wherein the fixing block 31 and the elbow clamp 32 are both fixed on the frame 1, the elbow clamp 32 is positioned on one side of the fixing block 31, and a fixing groove 311 for fixing the bearing 8 is formed in the fixing block 31; the fixing groove 311 is a V-shaped groove, and the toggle clamp 32 is used for pressing the bearing 8 against the fixing groove 311. The displacement sensor 5 and the pressure sensor 6 are located at both ends of the fixed block 31. Wherein, fixed block 31 is in vertical state, and spacing piece 33 is fixed in the one end of fixed block 31, and is located one side of pressure sensor 6 for restriction bearing 8 axial displacement, mainly used prevent bearing 8 and slide downwards under the action of gravity, make the fixed position of bearing 8, reduce the influence to the measurement, improve measuring accuracy and reliability. The limiting piece 33 is provided with a limiting groove 331 matched with the bearing 8, the bearing 8 is movably inserted into the limiting groove 331, and the limiting groove 331 is larger than the fixing groove 311, so that the bearing 8 is not affected.
The detection mandrel 41 is movably inserted into the bearing 8, and the bottom of the detection mandrel 41 is movably abutted against the pressure sensor 6; the adjusting nut 42 is fixed on the top of the detecting mandrel 41 and is movably abutted against the displacement sensor 5; the thrust device 7 is arranged opposite to the pressure sensor 6 and is used for pressing the pressure sensor 6 on the detection mandrel 41; wherein, adjusting nut 42 is used for eliminating the inside friction error of the measured bearing 8 according to thrust that thrust device 7 provided, and displacement sensor 5 is used for reading the play numerical value of bearing 8.
Specifically, the thrust device 7 includes a thrust lever 71, a thrust base 73, a load block 72, and a load wrench 74: the thrust bearing 73 is fixed on one side of the frame 1, the loading spanner 74 is positioned on the other side of the frame 1 and is opposite to the thrust bearing 73, the thrust lever 71 is hinged on the thrust bearing 73, one end of the thrust lever 71 extends to the outer side of the frame 1, the other end of the thrust lever 71 is movably inserted into the loading spanner 74, a thrust shaft 711 is arranged on the thrust lever 71, the thrust shaft 711 is movably abutted against the pressure sensor 6, the pressure sensor 6 is slidably mounted on the detection seat 61, and the detection seat 61 limits the moving direction of the pressure sensor 6, so that the pressure sensor 6 can only move towards the fixed block 31 and cannot move towards the thrust lever 71. The load block 72 is slidably inserted into one end of the thrust lever 71 and is located at one side of the thrust seat 73; the loading wrench 74 is mounted on the frame 1 through the wrench seat 742, the loading wrench 74 is hinged on the wrench seat 742, the loading wrench 74 is provided with the separating block 741, and when the loading wrench 74 is in the locking state, the separating block 741 enables the thrust shaft 711 to have no thrust on the pressure sensor 6, so that the pressure sensor 6 is in a free state. The fixed block 31 is vertically arranged, so that pressure can not be applied to the detection mandrel 41 when the pressure sensor 6 is in a free state, and the reliability and accuracy of detection are ensured.
The relative measurement mode is adopted, the display reading is the actual axial play of the bearing 8, errors or mistakes caused by manual conversion are avoided, and meanwhile, the detection method is simple and convenient to operate, and the detection efficiency is improved.
The measurement system adopts electronic display, so that man-machine interaction is convenient; the high-resolution inductive head is adopted, the measurement resolution can reach 0.1 mu m, the detection precision is ensured, the measuring force loading adopts a lever type mechanical structure, the load and the force arm can be adjusted, and the loading is stable and reliable; the measuring force is converted into electronic display through the pressure sensor 6, so that the visual inspection of the measuring load is facilitated.
Example two
As shown in fig. 1 to 4, a method for detecting an axial play measuring instrument of a turbocharger bearing includes the steps of:
a detection mandrel 41 is movably arranged on the bearing 8, and the bearing 8 is vertically fixed; one end of the detection mandrel 41 is provided with an adjusting nut 42, the adjusting nut 42 is movably abutted against the displacement sensor 5, and the other end of the detection mandrel 41 is movably abutted against the pressure sensor 6;
locking the loading wrench 74 to leave the pressure sensor 6 in a free state, the pressure is shown as "0";
releasing the loading wrench 74 to press the pressure sensor 6 and simultaneously displaying the pressure value;
maintaining the loading wrench 74 in a released state, and adjusting the position of the load block 72 on the thrust lever 71 so that the number of pressure displays reaches a predetermined value;
locking the loading wrench 74, lightly rotating the adjusting nut 42, eliminating the friction error in the measured bearing 8, and pressing the zero setting key 24 after stabilizing to display the play value as 0;
releasing the loading wrench 74, pushing the bearing 8 by the pushing lever 71 through the pressure sensor 6, and then reading out the play value, wherein the play value is the axial play of the bearing 8 to be tested;
and taking the average value as a detection result through multiple measurement.
The technical principle of the present invention is described above in connection with the specific embodiments. The description is made for the purpose of illustrating the general principles of the invention and should not be taken in any way as limiting the scope of the invention. Other embodiments of the invention will occur to those skilled in the art from consideration of the specification and practice of the invention without the need for inventive faculty, and are within the scope of the claims.
Claims (9)
1. The utility model provides a turbocharger bearing axial play measuring apparatu, includes controller (21) and all with displacement sensor (5), pressure sensor (6), pressure display screen (23) and play display screen (22) that controller (21) are connected, its characterized in that still includes:
the fixing device is used for fixing a bearing (8), and the displacement sensor (5) and the pressure sensor (6) are positioned at two ends of the fixing device;
the detection core shaft (41) is movably inserted into the bearing (8), and the bottom of the detection core shaft (41) is movably abutted against the pressure sensor (6);
the adjusting nut (42) is fixed at the top of the detecting mandrel (41) and is movably abutted against the displacement sensor (5); a kind of electronic device with high-pressure air-conditioning system
A thrust device (7), wherein the thrust device (7) is arranged opposite to the pressure sensor (6) and is used for pressing the pressure sensor (6) on the detection mandrel (41);
the adjusting nut (42) is used for eliminating friction errors in the measured bearing (8), and the displacement sensor (5) is used for reading the play value of the bearing (8).
2. A turbocharger bearing axial play measuring device according to claim 1, wherein the fixing means comprises:
a fixed block (31), wherein a fixed groove (311) for fixing the bearing (8) is arranged on the fixed block (31); a kind of electronic device with high-pressure air-conditioning system
And the elbow clamp (32) is positioned on one side of the fixed block (31) and is used for pressing the bearing (8) on the fixed groove (311).
3. A turbocharger bearing axial play measuring device according to claim 2, characterized in that the fixing groove (311) is a V-groove.
4. The turbocharger bearing axial play measurement apparatus of claim 2, further comprising: and the limiting piece (33), wherein the limiting piece (33) is fixed at one end of the fixed block (31).
5. The turbocharger bearing axial play measuring instrument according to claim 4, wherein the limiting piece (33) is provided with a limiting groove (331) matched with the bearing (8), and the bearing (8) is movably inserted into the limiting groove (331).
6. A turbocharger bearing axial play measuring device according to any one of claims 1 to 5, wherein the thrust means (7) comprises:
a thrust lever (71), wherein a thrust shaft (711) is arranged on the thrust lever (71), and the thrust shaft (711) is movably propped against the pressure sensor (6);
a thrust seat (73), wherein the thrust lever (71) is hinged on the thrust seat (73) and is positioned at one side of the thrust shaft (711);
a load block (72), wherein the load block (72) is slidably inserted into one end of the thrust lever (71) and is positioned on one side of the thrust seat (73); a kind of electronic device with high-pressure air-conditioning system
And the loading spanner (74) is movably inserted into the other end of the thrust lever (71) and is used for enabling the pressure sensor (6) to be in a free state.
7. A turbocharger bearing axial play measuring device according to any one of claims 1 to 5, characterized in that the fixing means are arranged vertically for bringing the bearing (8), the detection spindle (41) and the pressure sensor (6) into a vertical state.
8. The measuring method of the axial clearance measuring instrument of the turbocharger bearing is characterized by comprising the following steps of:
a detection mandrel (41) is movably arranged on the bearing (8), and the bearing (8) is vertically fixed; one end of the detection mandrel (41) is provided with an adjusting nut (42), the adjusting nut (42) is movably abutted against the displacement sensor (5), and the other end of the detection mandrel (41) is movably abutted against the pressure sensor (6);
locking the loading wrench (74) to enable the pressure sensor (6) to be in a free state, wherein the pressure is shown as 0;
releasing the loading wrench (74) to enable the pressure sensor (6) to be pressed, and displaying the pressure value at the same time;
maintaining the loading wrench (74) in a released state, and adjusting the position of the loading block (72) on the thrust lever (71) to enable the number of pressure displays to reach a specified value;
locking a loading spanner (74), lightly rotating an adjusting nut (42) to eliminate the internal friction error of a detected bearing (8), and pressing a zero setting key (24) after the friction error is stabilized to enable the play value to be 0;
the loading wrench (74) is released, the thrust lever (71) pushes the bearing (8) through the pressure sensor (6), and then the play value is read out, wherein the play value is the axial play of the bearing (8) to be tested.
9. The method according to claim 8, wherein the average value is measured as the detection result from a plurality of measurements.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310119610.2A CN116182771A (en) | 2023-02-16 | 2023-02-16 | Turbocharger bearing axial clearance measuring instrument and measuring method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310119610.2A CN116182771A (en) | 2023-02-16 | 2023-02-16 | Turbocharger bearing axial clearance measuring instrument and measuring method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116182771A true CN116182771A (en) | 2023-05-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310119610.2A Pending CN116182771A (en) | 2023-02-16 | 2023-02-16 | Turbocharger bearing axial clearance measuring instrument and measuring method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116182771A (en) |
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2023
- 2023-02-16 CN CN202310119610.2A patent/CN116182771A/en active Pending
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Effective date of registration: 20231115 Address after: Building E Workshop, No. 220 Chengnan Road, Xinwu District, Wuxi City, Jiangsu Province, 214000 Applicant after: Wuxi Yulu Precision Industry Co.,Ltd. Address before: 214000 No. 1 Lijiang Road, Wuxi New District, Jiangsu Province Applicant before: Wuxi No.2 Bearing Co.,Ltd. |
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