CN201122098Y - Measuring rod of pneumatic micrometer - Google Patents
Measuring rod of pneumatic micrometer Download PDFInfo
- Publication number
- CN201122098Y CN201122098Y CNU2007201916608U CN200720191660U CN201122098Y CN 201122098 Y CN201122098 Y CN 201122098Y CN U2007201916608 U CNU2007201916608 U CN U2007201916608U CN 200720191660 U CN200720191660 U CN 200720191660U CN 201122098 Y CN201122098 Y CN 201122098Y
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- rod
- air
- measuring
- nozzles
- gauge
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Abstract
The utility model relates to a bearing inner diameter measuring device, in particular to a pneumatic measuring instrument measuring rod for measuring the conicity of the inner circle of a bearing. A measuring rod of a pneumatic measuring instrument includes a rod body and a measuring head, air inlets are arranged on the rod body, and nozzles are arranged on the measuring head. The measuring rod is characterized in that at least two nozzles are arranged along the axial direction of the measuring head; axial air passages, the amount of which is equal to the amount of the axially arranged nozzles, are arranged inside the rod body; the axial air passages are respectively connected with the air inlets; the nozzles are respectively communicated with the axial air passages. The pneumatic measuring instrument measuring rod is based on the principle of fluid dynamics, takes the compressed air as the medium, and measures the conicity of the inner circle of the bearing by conducting the contrast measurement according to the changes of the sizes of the airflow gaps of the compressed air. The pneumatic measuring instrument measuring rod has the advantages of simple structure, high measurement efficiency, and high precision.
Description
Technical field
The utility model relates to the bearing bore diameter measuring equipment, relates in particular to a kind of air-gauge measuring staff of measuring the bearing inner race conicity.
Background technology
The pneumatic measuring staff of traditional air-gauge comprises the body of rod and gauge head, and the body of rod is provided with air intake opening, and gauge head is provided with nozzle, and nozzle generally all is arranged on the cross section, is used to measure the ovality and the size dispersion of bearing inner race.Along with the progressively raising of measuring the bearing inner race measurement requirement, need to measure the conicity of bearing inner race now, measure conicity with the pneumatic measuring staff of above-mentioned air-gauge, then efficiency of measurement is low, and the precision of measurement also can not get guaranteeing.
Summary of the invention
In order to solve the technical matters that exists in the above-mentioned existing bearing inner race measurement, the purpose of this utility model is on the basis of ovality that guarantees accurate measurement bearing inner race and size dispersion, and a kind of measuring staff of measuring the air-gauge of bearing inner race conicity is provided.
In order to realize above-mentioned purpose, the utility model has adopted following technical scheme:
A kind of measuring staff of air-gauge, comprise the body of rod and gauge head, the body of rod is provided with air intake opening, gauge head is provided with nozzle, it is characterized in that: axially be provided with 2 described nozzles at least along gauge head, and the axial air flue of the numbers such as nozzle that are provided with and axially are provided with in body of rod inside, axially air flue connects air intake opening respectively, and described nozzle is conducted with axial air flue respectively.
As preferably, same radial section at above-mentioned gauge head is provided with 2 described nozzles, and is provided with jet channel in the gauge head radial direction, and jet channel is provided with by the axis of gauge head, and be conducted with axial air flue, 2 nozzles are separately positioned on 2 ends of jet channel.Jet channel guarantees that by the axis of gauge head air-flow, the pressure of same cross section two nozzles are the same, has improved the precision of measuring.
As preferred again, be provided with radially air flue in above-mentioned body of rod inside, radially an end of air flue is conducted with axial air flue, other end sealing, described jet channel is arranged on radially on the air flue, and is conducted with air flue radially.The purpose of such scheme also is to guarantee that air-flow, the air pressure of the two nozzles ejection of same cross section are the same, has improved the precision of measuring.
As preferably, the nozzle of above-mentioned axial setting is 2, is provided with 2 axial air flues in body of rod inside.Certainly, 2 above-mentioned axial air flues can be separately positioned on 1 end of the body of rod, also can be separately positioned on 2 ends of the body of rod.
The utility model is owing to adopted above technical scheme, and according to principle of hydrodynamics, pneumatically is made medium, utilizes the variation of compressed air gap size to compare and records the bearing inner race conicity.The utlity model has simple in structure, efficiency of measurement height, the advantage that precision is good.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment 1.
Fig. 2 is the A-A cut-open view of Fig. 1.
Fig. 3 is the B-B cut-open view of Fig. 1.
Fig. 4 is the structural representation of the utility model embodiment 2.
Embodiment
Embodiment 1
The measuring staff of a kind of air-gauge as shown in Figure 1 comprises the body of rod 1 and gauge head 2.The body of rod 1 is provided with 2 air intake openings 3 and 4,2 air intake openings 3 of 2 axial air flues connect 2 axial air flues 4 respectively.On 2 different radial sections of axial direction of gauge head 2, be respectively equipped with nozzle 6.
As Fig. 2, shown in Figure 3, same radial section at gauge head 2 is provided with 2 nozzles 6, and is provided with jet channel 8 in gauge head 2 radial direction, and jet channel 8 is provided with by the axis of gauge head 2, and be conducted with axial air flue 4,26 at nozzles are separately positioned on 2 ends of jet channel 8.As shown in Figure 1, be provided with radially air flue 5 in the body of rod 1 inside, radially an end of air flue 5 is conducted with axial air flue 4, and the other end is by stopper 7 sealings, and described jet channel 8 is arranged on radially on the air flue 5, is conducted with air flue 5 radially.
When needing only measurement bearing inner race ovality and size dispersion, when promptly a radial section is measured, import one of them air intake opening 3 as long as will connect the pressure-air of air-gauge, select a section gauge just passable.In the time will measuring the bearing inner race conicity, connect 2 air intake openings 3.
As shown in Figure 4,2 axial air flues 4 are separately positioned on 2 ends of the body of rod 1, and 2 air intake openings 3 also are separately positioned on 2 ends of the body of rod 1, and the other technologies scheme is as described in the embodiment 1.
Claims (5)
1. the measuring staff of an air-gauge, comprise the body of rod (1) and gauge head (2), the body of rod (1) is provided with air intake opening (3), gauge head (2) is provided with nozzle (6), it is characterized in that: axially be provided with 2 described nozzles (6) at least along gauge head (2), and the axial air flue (4) of the nozzle numbers such as (6) that is provided with and axially is provided with in the body of rod (1) inside, axially air flue (4) connects air intake opening (3) respectively, and described nozzle (6) is conducted with axial air flue (4) respectively.
2. the measuring staff of a kind of air-gauge according to claim 1, it is characterized in that: the same radial section at gauge head (2) is provided with 2 described nozzles (6), and be provided with jet channel (8) in gauge head (2) radial direction, jet channel (8) is provided with by the axis of gauge head (2), and be conducted with axial air flue (4), 2 nozzles (6) are separately positioned on 2 ends of jet channel (8).
3. the measuring staff of a kind of air-gauge according to claim 2, it is characterized in that: be provided with radially air flue (5) in the body of rod (1) inside, radially an end of air flue (5) is conducted with axial air flue (4), other end sealing, described jet channel (8) is arranged on radially on the air flue (5), and is conducted with air flue (5) radially.
4. according to the measuring staff of any described a kind of air-gauge of claim of claim 1～3, it is characterized in that: axially the nozzle (6) that is provided with is 2, is provided with 2 axial air flues (4) in the body of rod (1) inside.
5. the measuring staff of a kind of air-gauge according to claim 4, it is characterized in that: 2 axial air flues (4) are separately positioned on 2 ends of the body of rod (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201916608U CN201122098Y (en) | 2007-11-13 | 2007-11-13 | Measuring rod of pneumatic micrometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201916608U CN201122098Y (en) | 2007-11-13 | 2007-11-13 | Measuring rod of pneumatic micrometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201122098Y true CN201122098Y (en) | 2008-09-24 |
Family
ID=40009330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201916608U Expired - Fee Related CN201122098Y (en) | 2007-11-13 | 2007-11-13 | Measuring rod of pneumatic micrometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201122098Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103292751A (en) * | 2013-06-19 | 2013-09-11 | 镇江东艺机械有限公司 | Pneumatic measuring instrument inner diameter measuring head and manufacturing method thereof |
| CN104048627A (en) * | 2014-06-27 | 2014-09-17 | 贵州红林机械有限公司 | Multi-nozzle pneumatic line measurement needle, calibration ring thereof, calibration method and measurement method |
| CN101907438B (en) * | 2010-07-22 | 2016-01-20 | 无锡双益精密机械有限公司 | For the surveying instrument of small bearing inner hole |
| CN107643058A (en) * | 2017-10-29 | 2018-01-30 | 无锡万奈特测量设备有限公司 | Multi-section pneumatic gauging is advised |
-
2007
- 2007-11-13 CN CNU2007201916608U patent/CN201122098Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101907438B (en) * | 2010-07-22 | 2016-01-20 | 无锡双益精密机械有限公司 | For the surveying instrument of small bearing inner hole |
| CN103292751A (en) * | 2013-06-19 | 2013-09-11 | 镇江东艺机械有限公司 | Pneumatic measuring instrument inner diameter measuring head and manufacturing method thereof |
| CN104048627A (en) * | 2014-06-27 | 2014-09-17 | 贵州红林机械有限公司 | Multi-nozzle pneumatic line measurement needle, calibration ring thereof, calibration method and measurement method |
| CN104048627B (en) * | 2014-06-27 | 2017-03-08 | 贵州红林机械有限公司 | Multiinjector pneumatic linearity metering pin and its calibration ring and calibration steps and measuring method |
| CN107643058A (en) * | 2017-10-29 | 2018-01-30 | 无锡万奈特测量设备有限公司 | Multi-section pneumatic gauging is advised |
| CN107643058B (en) * | 2017-10-29 | 2024-01-12 | 无锡万耐特自动化设备股份公司 | Multi-section pneumatic measuring gauge |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Wuxi City Huiguang Instrument Co., Ltd. Zhang Huibang Assignor: Lin Dan Contract record no.: 2010320000504 Denomination of utility model: Measuring rod of pneumatic micrometer Granted publication date: 20080924 License type: Exclusive License Record date: 20100430 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080924 Termination date: 20121113 |