JB/T 8073-1996 Rolling bearing angular contact ball bearing end face protrusion measuring instrument JB/T8073-1996 standard download decompression password: www.bzxz.net

Mechanical Industry Standard of the People's Republic of China
JB/T 8073-96
Rolling bearings
Angular contact ball bearing end face protrusion measuring instrument 1996-09-03 Issued
Ministry of Machinery Industry of the People's Republic of China
1997-07-01 Implementation
JB/T A073·96
This standard is proposed and approved by the National Technical Committee for Standardization of Hydrodynamic Bearings. The drafting unit of this standard is Geyang Axle Research Institute of the Ministry of Machinery Industry. The main drafters of this standard are: Zhao Jinkong, Jiang Dunqing, and Zhang Zhongyuan. 1 Scope
Machinery Industry Standard of the People's Republic of China
Rolling bearings
Angular contact ball bearing end face protrusion measurement instrument JH/T8073-96
This standard specifies the technical provisions and inspection methods for measuring the end protrusion of angular contact ball bearings with an outer diameter of 2 to 20 mm. This standard is applicable to the manufacture of "Quality inspection departments and state households to the inspection and acceptance of the fake device. 2 Reference standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is revised, the versions shown are valid. All standards will be verified, so the parties to this standard should discuss the possibility of the latest revision of the following standards. GH1331-86
Precision pressure square safety
JB/T53C731 General technical conditions for deep dynamic bearing low pressure gauges J/T5394-91 Dynamic measuring instrument 3 Definitions Special numbers and abbreviations
Yuan standard adopts the above-mentioned text. Others are in accordance with B/T53S4: 3.1 Matching
Consider the scientific requirements of the bearing under preload 3
Single shaft hand under the action of the relative motion, the axial distance between the group surface and the pin surface on the same side of the figure 4 Instrument measurement principle
Instrument verification principle as shown in 1 first use the standard bad adjustment of the zero point of the filter: with the outer ring of the measured bearing reference surface positioning, on the bearing cabinet standard belt surface to apply a certain load, and the air soil belt lacks the bearing internal rotation, eliminate the friction error, the tightness of the dynamic forest processing three normal spaces. The instrument measures the bearing internal surface relative to the external reference drawing of the moment, the bearing end face output, the measured product value, the minimum value, the machine lock industry department 1996-09-n3 approved
1997-07-01 implementation
5 Technical requirements
JH/T 8073-96
Drilling point
Three-way sensor 12-axis: 2-empty axis: 4-small air: 5-second position: 6-precision seat Table 1 only explains the measurement principle
S.1 Instrument technical indicators
5.1.1 The indication error of the instrument should not be greater than 1. 5.1.2 The integrity of the instrument sensor should not include the current specifications in Table 1, and the instrument range; 11Ckm, 130um is the precision plate, +109um For general measurement range.
Table 1 Sensor performance error
5.1.3 The instrument measurement value is 0~5CUN, and the error does not exceed 1%. 5.1.4 The repeatability of the instrument indication should not exceed 0.5gm+5
5.1.5 The indication stability of the receiver requires that the change of the low indication within 4h should not exceed 0.5m. 5.2 Instrument measurement system
5.2.1 The measuring force of the instrument measuring system is between 0.98~-3.8N5.2.2 The accuracy of the instrument positioning is not more than 0.5m5.3 Instrument positioning reference
Linearity
JB/ T8073-96
5.3.1 The upper working end of the air spindle of the receiver shall not exceed 0.3um.5.3.2 The verticality error between the lower plane of the instrument top plate and the center line of the air spindle shall not exceed 0.4um. 5.4 Working environment requirements for the receiver
The working environment temperature of the receiver shall be 20℃-5℃, the temperature gradient shall be 1℃/h, the accuracy shall not exceed 80%, the power supply shall be ac220V±22V, the power supply frequency shall be 50Hz, the air supply pressure shall be C.5~0.6MPs, and the compressed air shall be purified and dried. 5.5 Appearance quality of the instrument
The appearance quality of the instrument shall comply with the provisions of J/T 5317. 5.6 Calibration standard
5.6.1 The standard parts shall be determined according to the requirements of letter 2. , A
Abstract width when
2Standard control
5. 6.2 Zero control accuracy and accuracy shall be in accordance with the provisions of the figure. A
6 Inspection method
Figure 3 Reference ringbzxz.net
6.1 Instrument value error. Use step standard parts (see Figure) to measure the value. The measured value shall comply with the provisions of 5.1.1. f.2 Speed ​​transmitter linear error shall be identified by BCT-5C micro-motion bench according to Table 1. 3
JB/T07396
6.3 The measurement load error is 1%, which is guaranteed by a special nozzle-tight pressure gauge (0.4 suffix). The box pressure gauge should meet the requirements of GB1227 (calibrator piston area -1Gcm*.5r0N/10cm*=50N/cm=0.5MFa).4 The indication value is checked by the standard part (see Figure 2 for multiple sugar measurements, which should not exceed the provisions of 5.1.1. 6.5 The indication value of the positioner is checked by the micro-movement platform (C T.5 type) In the continuous operation of the electric box for 4b, the H indication value does not change much. 10.5μm.
6.6 Testing the end-end force of the measuring system. According to the method specified by the instrument, adjust the instrument to the plate system and then use the dynamometer to measure the small bearing. The instrument should meet the requirements of 5.2.1.
The zero position calibration of the instrument should be carried out. The reference ring (see figure) can be used to apply the load according to the requirements of the measured bearing on the measuring position of the instrument. The measuring range is 15m. Repeat the measurement many times. The value should meet the requirements of 5.2. 2. 6. The upper working end face of the air spindle of the air spindle shall be tested in the manufacturing process. The air spindle end runout shall be measured by IXGH·5A inductive micrometer in the air floating state in accordance with the provisions of 5.3.1. 6.9 The verticality between the lower surface of the instrument plate and the center line of the air spindle shall be tested in the manufacturing process. Make the air spindle in the air floating state, fix the LGB3A inductive micrometer sensor on the end face of the air spindle, rotate the air spindle, and use the sensor to measure the air spindle end runout. The verticality of the reference surface of the plate shall meet the requirements of G3.2. The appearance quality of the group shall be verified.
6.11 The standard parts and reference parts of the instrument calibration shall be sent to the design department for inspection regularly. ? Instrument inspection rules
The original rules of the group shall be in accordance with 4.1 and 4.4 of JB/530791 and the instrument marking, packaging, transportation and storage shall be in accordance with the provisions of JB/T5307-91 Section 5.4
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