CN107152921A - A kind of roller bearing clearance trap measurement apparatus and the measuring method with the device - Google Patents
A kind of roller bearing clearance trap measurement apparatus and the measuring method with the device Download PDFInfo
- Publication number
- CN107152921A CN107152921A CN201710576508.XA CN201710576508A CN107152921A CN 107152921 A CN107152921 A CN 107152921A CN 201710576508 A CN201710576508 A CN 201710576508A CN 107152921 A CN107152921 A CN 107152921A
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- outer ring
- height
- corner board
- board
- vertical rod
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- 238000005259 measurement Methods 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims abstract description 13
- 125000006850 spacer group Chemical group 0.000 claims abstract description 69
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000011017 operating method Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- 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
-
- 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
- F16C43/00—Assembling bearings
- F16C43/04—Assembling rolling-contact bearings
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
A kind of roller bearing clearance trap measurement apparatus, including a cone spacer height measuring mechanism, an outer ring spacer height measuring mechanism and a calibration platform, cone spacer height measuring mechanism includes a vertical rod, the middle part of vertical rod is provided with one first vertical slot along vertical rod length direction, and a bottom plate is integrally vertically connected with the bottom of vertical rod；One first bolt has been passed perpendicularly through in first vertical slot, one end that first bolt is located on front side of vertical rod is fixed with the riser of one first corner board, one end periphery that first bolt is located on rear side of vertical rod is arranged with one first clamp nut, and a height-gauge is fixed with vertically in the level board tail end of the first corner board.The structure is by after the corresponding assembly trap of outer ring and inner ring, the corresponding each numerical value of rotation measuring measurement device can be passed through, avoid the operation that corresponding assembly is moved in measurement process, it is effectively reduced the labor intensity of workman, the relative stability between corresponding assembly is also ensure that, so that the stability and accuracy of measurement result has been effectively ensured.
Description
Technical field：
The present invention relates to a kind of roller bearing clearance trap measurement apparatus and the measuring method with the device.
Background technology：
Progress, industrial expansion with science and technology, client is to the four-row tapered roller used in milling equipment, mining equiment etc.
The quality requirement of bearing also increasingly increases, and bearing clearance affects the use of bearing as the key factor of bearing service life
In the life-span, the damage of mechanical axis is resulted even in, so bearing clearance must reach qualified, the structure bag of four-row tapered roller bearing
Outer ring, inner ring, retainer and roller body are included, wherein outer ring includes upper end circle 21, centre circle 22 and lower end turn 23,21 Hes are enclosed in upper end
Outer ring spacer 24 is equipped between centre circle 22, between centre circle 22 and lower end turn 23, inner ring includes upper inner ring 31 and lower inner ring 32, upper
Cone spacer 33 is provided between inner ring 31 and lower inner ring 32, wants to ensure that the acceptable level of bearing clearance must be equipped with dimensional standard
Outer ring spacer 24 and cone spacer 33, when the outer ring spacer 24 of corresponding size and cone spacer 33 are equipped with, all in accordance with outer ring and inner ring
The size of conjunction measuring is equipped with, to ensure that bearing clearance reaches standard.
It is many in the prior art to be surveyed using detection, survey tool when being equipped with corresponding size outer ring spacer 24 and cone spacer 33
Measure the respective value after outer ring and inner ring trap, detection of the prior art, survey tool moved in the intermediate demand of measurement, mobile
Outer ring and the corresponding component of inner ring, for some large-scale bearings, the heavier-weight of each component, the very great Cheng during moving
The labor intensity of workman is added on degree, and relative skew easily occurs for the component of outer ring and inner ring, is easily caused measurement
As a result inaccurate, measured value it is unstable, ultimately result in outer ring spacer 24 and cone spacer 33 be equipped with size it is unstable, do not conform to
Reason, so as to affect the unqualified of bearing clearance.
The content of the invention：
The invention provides a kind of roller bearing clearance trap measurement apparatus and the measuring method with the device, the structure is set
Meter is reasonable, novel, after the corresponding assembly trap of outer ring and inner ring, can pass through the corresponding each number of rotation measuring measurement device
Value, it is to avoid the operation of corresponding assembly is moved in measurement process, the labor intensity of workman is effectively reduced, also ensure that corresponding
Relative stability between component, so that the stability and accuracy of measurement result has been effectively ensured, it is ensured that be equipped with outer ring spacer
With the reasonability and standard of cone spacer, so as to ensure that bearing clearance can reach standard, also, operating procedure letter is measured
Single, the step of simplifying measurement improves the efficiency measured vertically, is easy to calculate the number of accurate outer ring spacer and cone spacer
Value, suitable for wide popularization and application, solves problems of the prior art.
The present invention is for the technical scheme that is used of solution above-mentioned technical problem：
A kind of roller bearing clearance trap measurement apparatus, including a cone spacer height measuring mechanism, an outer ring spacer are highly surveyed
Measuring mechanism and a calibration platform, the cone spacer height measuring mechanism include a vertical rod, and the middle part of vertical rod is along vertical rod length direction
One first vertical slot is provided with, a bottom plate is integrally vertically connected with the bottom of vertical rod；Passed perpendicularly through in first vertical slot
There is one first bolt, one end that the first bolt is located on front side of vertical rod is fixed with the riser of one first corner board, and the first bolt is located at
One end periphery on rear side of vertical rod is arranged with one first clamp nut, and it is high to be fixed with one vertically in the level board tail end of the first corner board
Measuring instrument is spent, the bottom of height-gauge passes perpendicularly through the level board of the first corner board under the level board of the first corner board
Side；The outer ring spacer height measuring mechanism is included in the middle part of one second corner board and one the 3rd corner board, the riser of the second corner board
It is provided with along the length direction of the riser of the second corner board in one second vertical slot, the second vertical slot and has passed perpendicularly through one second spiral shell
Bolt, the one end and the riser of the 3rd corner board of the second bolt on front side of the riser of the second corner board is fixedly connected with, the second bolt position
One end periphery on rear side of the riser of the second corner board is arranged with one second clamp nut；First corner board, the second turning
Plate and the 3rd corner board are right angle corner plate.
A kind of measuring method with the roller bearing clearance trap measurement apparatus, comprises the following steps：
S11 calibrated altitude measuring instruments
Cone spacer height measuring mechanism is placed on calibration platform, bottom plate is fitted with calibration platform, height is surveyed
The bottom and calibration platform for measuring instrument are abutted against, and be zeroed height-gauge；
S12 traps 1
Centre circle top pressure in the centre circle trap of outer ring wherein an inner ring, and in outer ring is set into a variable weights；
The difference in height of the centre circle upper surface and a wherein inner ring upper surface of S13 measurements outer ring
Cone spacer height measuring mechanism is placed on inner ring so that the upper surface of bottom plate and inner ring fits, so stood
Bar is just vertical on inner ring, by the height of the clamp nut of turn first the first corner board of regulation, when the bottom of height-gauge
When being abutted against with the centre circle of outer ring, the first corner board is fixed in vertical rod by the first clamp nut, the numerical value now read
Centre circle upper surface just for outer ring and the difference in height of inner ring upper surface, read the numerical value at two positions；
S14 calculates the height of cone spacer
The height of the two values measured in the distance between two inner rings=S13 and-outer ring centre circles；
The distance between height=two inner ring of cone spacer+end-play；
S21 traps 2
Pad between two inner rings is set into a subbolster, and (height of subbolster is more than or equal in two calculated in S14
+ 5 millimeters of the distance between circle -- 10 millimeters), subbolster, two inner rings, the centre circle of outer ring and one end of outer ring circle are harmonious
Set, and pressure sets a variable weights at the top of one end circle of outer ring；
The distance between the centre circle upper surface of S22 measurements outer ring and one end circle lower surface of outer ring
The upper surface of the lower surface of the level board of second corner board and the centre circle of outer ring is fitted, second is then adjusted tight
Gu nut, mobile 3rd corner board, the lower surface that one end of the upper surface of the level board of the 3rd corner board and outer ring is enclosed is affixed
Close, adjust the second clamp nut, the second corner board and the 3rd corner board are mutually fixed, by cone spacer height measuring mechanism and it is outer every
Circle measuring mechanism is all placed on calibration platform, and the second corner board lower surface to the 3rd turning is measured with outer ring spacer measuring mechanism
The distance of plate lower surface, this numerical value of measurement be exactly between the centre circle upper surface of outer ring and one end circle lower surface of outer ring away from
From；
S23 calculates the height of outer ring spacer
In width=S22 of outer ring spacer measure side numerical value-(two inner rings calculated in the height-S14 of subbolster it
Between distance)+end-play.
This device can also be used for the measurement of two row conical bearing roller outer ring spacers.
Use said structure reasonable in design of the invention, novelty, after the corresponding assembly trap of outer ring and inner ring, energy
Enough pass through the corresponding each numerical value of rotation measuring measurement device, it is to avoid the operation of corresponding assembly is moved in measurement process, effectively
The labor intensity of workman is alleviated, the relative stability between corresponding assembly is also ensure that, so that measurement result has been effectively ensured
Stability and accuracy, it is ensured that the reasonability and standard of outer ring spacer and cone spacer are equipped with, so as to ensure that bearing clearance
Standard can be reached, also, measurement operating procedure is simple, and the step of simplifying measurement improves the efficiency measured vertically, is easy to
The numerical value of accurate outer ring spacer and cone spacer is calculated, suitable for wide popularization and application.
Brief description of the drawings：
Fig. 1 is the structural representation of four row conical bearing rollers.
Fig. 2 is the structural representation of cone spacer height measuring mechanism of the present invention.
Fig. 3 is the structural representation of outer ring spacer height measuring mechanism of the present invention.
Fig. 4 is structural representation of the invention.
Centre circle upper surfaces and the schematic diagram of difference in height one wherein inner ring upper surface position 1 at of the Fig. 5 for measurement outer ring.
Centre circle upper surfaces and the schematic diagram of difference in height one wherein inner ring upper surface position 1 at of the Fig. 6 for measurement outer ring.
Fig. 7 encloses the schematic diagram of the distance between lower surface for the centre circle upper surface of measurement outer ring and one end of outer ring.
Fig. 8 is the centre circle and upper inner ring, the schematic diagram of lower inner ring trap of outer ring.
In figure, 1 calibration platform, 2 vertical rods, 3 first vertical slots, 4 bottom plates, 5 first corner boards, 6 first clamp nuts, 7 is high
Measuring instrument is spent, 8 second corner boards, 9 the 3rd corner boards, 10 second vertical slots, 11 second clamp nuts, 21 upper ends are enclosed, 22 centre circles,
23 lower end turns, 24 outer ring spacers, inner ring, 32 times inner rings, 33 cone spacers on 31.
Embodiment：
For the technical characterstic for illustrating this programme can be understood, below by embodiment, and its accompanying drawing is combined, to this hair
It is bright to be described in detail.
As shown in figs.1-8, a kind of roller bearing clearance trap measurement apparatus, including a cone spacer height measuring mechanism,
One outer ring spacer height measuring mechanism and a calibration platform 1, the cone spacer height measuring mechanism includes a vertical rod 2, in vertical rod 2
Portion is provided with one first vertical slot 3 along the length direction of vertical rod 2, and a bottom plate 4 is integrally vertically connected with the bottom of vertical rod 2；It is described
One first bolt is passed perpendicularly through in first vertical slot 3, one end that the first bolt is located at the front side of vertical rod 2 is fixed with one first turning
The riser of plate 5, one end periphery that the first bolt is located at the rear side of vertical rod 2 is arranged with one first clamp nut 6, in the first corner board 5
Level board tail end be fixed with a height-gauge 7 vertically, the bottom of height-gauge 7 passes perpendicularly through the water of the first corner board 5
Flat board is located on the downside of the level board of the first corner board 5；The outer ring spacer height measuring mechanism includes one second corner board 8 and one the
The length direction of riser in the middle part of three corner boards 9, the riser of the second corner board 8 along the second corner board 9 is provided with one second vertical slot
One second bolt is passed perpendicularly through in hole 10, the second vertical slot 10, the second bolt is located at one on front side of the riser of the second corner board 8
The riser with the 3rd corner board 9 is held to be fixedly connected with, one end periphery that the second bolt is located on rear side of the riser of the second corner board 8 is arranged with
One second clamp nut 11；First corner board 5, the second corner board 8 and the 3rd corner board 9 are right angle corner plate.
A kind of measuring method with the roller bearing clearance trap measurement apparatus, comprises the following steps：
S11 calibrated altitude measuring instruments
Cone spacer height measuring mechanism is placed on calibration platform 1, bottom plate 4 is fitted with calibration platform 1, will height
The bottom of measuring instrument 7 is abutted against with calibration platform 1, and be zeroed height-gauge 7；
S12 traps 1
The top of centre circle 22 pressure in the trap of centre circle 22 of outer ring wherein an inner ring, and in outer ring is set into a variable weights；
The difference in height of the upper surface of centre circle 22 and a wherein inner ring upper surface of S13 measurements outer ring
Cone spacer height measuring mechanism is placed on inner ring so that the upper surface of bottom plate 4 and inner ring fits, so stood
Bar 2 is just vertical on inner ring, by the height of the clamp nut of turn first the first corner board 5 of regulation, when the bottom of height-gauge 7
When the centre circle 22 at end and outer ring is abutted against, the first corner board 5 is fixed in vertical rod 2 by the first clamp nut, now read
Numerical value just for outer ring the upper surface of centre circle 22 and inner ring upper surface difference in height (h2 in h1, Fig. 6 in such as Fig. 5), read
Numerical value at two positions；When the two numerical value are read, without rotating centre circle 22 and this inner ring, it is to avoid centre circle 22
The movement of relative displacement between this inner ring, effectively prevent the generation of measurement error, it is ensured that the vertical accuracy of measurement
And stability；
S14 calculates the height of cone spacer
The two values measured in the distance between two inner rings (C~in such as Fig. 8)=S13 and (h1+h2)-outer ring
Centre circle height (C1 in Fig. 5 or Fig. 6)；
The distance between height=two inner ring of cone spacer (C~in such as Fig. 8)+end-play；
S21 traps 2
Pad between two inner rings (upper inner ring 31 and lower inner ring 32) is set into a subbolster (height of subbolster such as Fig. 7
In M be more than or equal to+5 millimeters of the distance between two inner rings calculating in S14 -- 10 millimeters), by subbolster, two
Circle, the centre circle 22 of outer ring and one end of outer ring circle phase trap, and pressure sets a variable weights at the top of one end circle of outer ring；
The distance between the upper surface of centre circle 22 of S22 measurements outer ring and one end circle lower surface of outer ring
The upper surface of the lower surface of the level board of second corner board 8 and the centre circle 22 of outer ring is fitted, is then adjusted
Two clamp nuts 11, mobile 3rd corner board 9, by under one end circle of the upper surface of the level board of the 3rd corner board 9 and outer ring
End face fits, and adjusts the second clamp nut 11, the second corner board 8 is mutually fixed with the 3rd corner board 9, cone spacer is highly surveyed
Measuring mechanism and outer ring spacer measuring mechanism are all placed on calibration platform (such as Fig. 4), are measured second with outer ring spacer measuring mechanism and are turned
The lower surface of gusset 8 to the lower surface of the 3rd corner board 9 distance, this numerical value of measurement be exactly outer ring the upper surface of centre circle 22 with it is outer
The distance between one end circle lower surface of circle (b1 in such as Fig. 7)；
S23 calculates the height of outer ring spacer
Side numerical value (b1)-(two calculated in the height M-S14 of subbolster are measured in width ()=S22 of outer ring spacer
The distance between individual inner ring C~)+end-play.
As step S21-S23 can draw the height of other end outer ring spacer.
, can be by rotating using the roller bearing clearance trap measurement apparatus and the measuring method with the device of the present invention
Measurement apparatus measures corresponding each numerical value, it is to avoid the operation of corresponding assembly is moved in measurement process, workman is effectively reduced
Labor intensity, also ensure that the relative stability between corresponding assembly, thus be effectively ensured measurement result stability and
Accuracy, it is ensured that the reasonability and standard of outer ring spacer and cone spacer are equipped with, so as to ensure that bearing clearance can reach mark
Standard, also, measurement operating procedure is simple, and the step of simplifying measurement improves the efficiency measured vertically, is easy to calculate accurately
Outer ring spacer and cone spacer numerical value, suitable for wide popularization and application.
Above-mentioned embodiment cannot function as limiting the scope of the invention, for the technology people of the art
For member, any alternate modification or conversion made to embodiment of the present invention are all fallen within protection scope of the present invention.
Part is not described in detail by the present invention, is the known technology of those skilled in the art of the present technique.
Claims (2)
1. a kind of roller bearing clearance trap measurement apparatus, including a cone spacer height measuring mechanism, an outer ring spacer elevation carrection
Mechanism and a calibration platform, it is characterised in that：The cone spacer height measuring mechanism includes a vertical rod, and the middle part of vertical rod is along vertical rod
Length direction is provided with one first vertical slot, and a bottom plate is integrally vertically connected with the bottom of vertical rod；In first vertical slot
One first bolt is passed perpendicularly through, one end that the first bolt is located on front side of vertical rod is fixed with the riser of one first corner board, first
One end periphery that bolt is located on rear side of vertical rod is arranged with one first clamp nut, solid vertically in the level board tail end of the first corner board
A height-gauge is connected with, the bottom of height-gauge passes perpendicularly through water of the level board positioned at the first corner board of the first corner board
On the downside of flat board；The outer ring spacer height measuring mechanism includes one second corner board and one the 3rd corner board, the second corner board it is vertical
It is provided with the middle part of plate along the length direction of the riser of the second corner board in one second vertical slot, the second vertical slot and has passed perpendicularly through one
Second bolt, the one end and the riser of the 3rd corner board of the second bolt on front side of the riser of the second corner board is fixedly connected with, and second
One end periphery that bolt is located on rear side of the riser of the second corner board is arranged with one second clamp nut；First corner board,
Two corner boards and the 3rd corner board are right angle corner plate.
2. the measuring method of roller bearing clearance trap measurement apparatus described in a kind of use claim 1, it is characterised in that：Including with
Lower step：
S11 calibrated altitude measuring instruments
Cone spacer height measuring mechanism is placed on calibration platform, bottom plate fitted with calibration platform, by height-gauge
Bottom with calibration platform abut against, be zeroed height-gauge；
S12 traps 1
Centre circle top pressure in the centre circle trap of outer ring wherein an inner ring, and in outer ring is set into a variable weights；
The difference in height of the centre circle upper surface and a wherein inner ring upper surface of S13 measurements outer ring
Cone spacer height measuring mechanism is placed on inner ring so that the upper surface of bottom plate and inner ring fits, such vertical rod is just
Vertically on inner ring, the height of the first corner board is adjusted by the clamp nut of turn first, when height-gauge bottom with it is outer
When the centre circle of circle is abutted against, the first corner board is fixed in vertical rod by the first clamp nut, the numerical value now read is just
The centre circle upper surface of outer ring and the difference in height of inner ring upper surface, read the numerical value at two positions；
S14 calculates the height of cone spacer
The height of the two values measured in the distance between two inner rings=S13 and-outer ring centre circles；
The distance between height=two inner ring of cone spacer+end-play；
S21 traps 2
Will between two inner rings pad set a subbolster (height of subbolster be more than or equal in S14 two inner rings calculating it
Between+5 millimeters of distance -- 10 millimeters), phase trap is enclosed into subbolster, two inner rings, the centre circle of outer ring and one end of outer ring, and
Pressure sets a variable weights at the top of one end circle of outer ring；
The distance between the centre circle upper surface of S22 measurements outer ring and one end circle lower surface of outer ring
The upper surface of the lower surface of the level board of second corner board and the centre circle of outer ring is fitted, second is then adjusted and fastens spiral shell
Mother, mobile 3rd corner board, the lower surface that one end of the upper surface of the level board of the 3rd corner board and outer ring is enclosed fits, and adjusts
The second clamp nut is saved, the second corner board and the 3rd corner board are mutually fixed, cone spacer height measuring mechanism and outer ring spacer are surveyed
Measuring mechanism is all placed on calibration platform, is measured with outer ring spacer measuring mechanism under the second corner board lower surface to the 3rd corner board
The distance on surface, this numerical value of measurement is exactly that the distance between lower surface is enclosed in the centre circle upper surface of outer ring and one end of outer ring；
S23 calculates the height of outer ring spacer
Side numerical value-(between two inner rings calculated in the height-S14 of subbolster is measured in width=S22 of outer ring spacer
Distance)+end-play.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710576508.XA CN107152921B (en) | 2017-07-14 | 2017-07-14 | Roller bearing clearance fit measuring device and measuring method using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710576508.XA CN107152921B (en) | 2017-07-14 | 2017-07-14 | Roller bearing clearance fit measuring device and measuring method using same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107152921A true CN107152921A (en) | 2017-09-12 |
| CN107152921B CN107152921B (en) | 2023-04-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710576508.XA Active CN107152921B (en) | 2017-07-14 | 2017-07-14 | Roller bearing clearance fit measuring device and measuring method using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107152921B (en) |
Cited By (2)
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| CN108007521A (en) * | 2018-01-02 | 2018-05-08 | 泰华智慧产业集团股份有限公司 | A kind of split type inspection shaft flowmeter stent and its application method |
| CN110159663A (en) * | 2019-06-24 | 2019-08-23 | 芜湖恒升重型机床股份有限公司 | A kind of bearing clearance pre-tension method and bearing arrangement |
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| CN108007521B (en) * | 2018-01-02 | 2024-01-23 | 泰华智慧产业集团股份有限公司 | Split type inspection well flowmeter bracket and application method thereof |
| CN110159663A (en) * | 2019-06-24 | 2019-08-23 | 芜湖恒升重型机床股份有限公司 | A kind of bearing clearance pre-tension method and bearing arrangement |
| CN110159663B (en) * | 2019-06-24 | 2024-03-19 | 芜湖恒升重型机床股份有限公司 | Bearing play pre-tightening method and bearing structure |
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| CN107152921B (en) | 2023-04-25 |
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Denomination of invention: A measuring device for the clearance of roller bearings and a measurement method using the device Effective date of registration: 20240103 Granted publication date: 20230425 Pledgee: China Minsheng Bank Co.,Ltd. Dalian Branch Pledgor: DALIAN GUANGYANG BEARING CO.,LTD. Registration number: Y2024980000323 |
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