JB/T 10021-1999 This standard is a revision of ZB J42 020-88 "Gear Helix Measuring Instrument". During the revision, only editorial changes were made according to relevant regulations, and the technical content has not changed. This standard specifies the type, basic parameters and their values, technical requirements, marking, packaging, transportation and storage of gear helix measuring instruments. This standard is applicable to gear helix measuring instruments that can measure gears with a module greater than or equal to 0.5mm and a maximum top circle diameter of 600mm. This standard was first issued on February 22, 1988. JB/T 10021-1999 Gear Helix Measuring Instrument JB/T10021-1999 Standard download decompression password: www.bzxz.net

ICS 25.060.20
Machinery Industry Standard of the People's Republic of China
JBT10021--1999
Gear belix measuring instrument
Gear belix measuring instrument1999-015-20 Issued
National Bureau of Machinery Industry
2000-01-01 Implementation
JB/T1002I-1999
This standard is revised on the basis of ZBJ42020-88 "Gear belix measuring instrument" This standard is consistent with the technical content of ZBJ42020-88, and has only been re-edited according to relevant regulations. This standard replaces J42020-88 on the date of implementation. Appendix A of this standard is the appendix of the standard.
This standard is proposed and managed by the National Technical Committee for Standardization of Measuring Instruments. The responsible unit for the issuance of this standard is Harbin Dongbin Gear Mill. This standard was first issued in 1988.
China Machinery Industry Standard
Gear Helix Measuring Instrument
Gear Helix Measuring Instruments JB/T [0021—1999
Generated ZBJ4202088
This standard specifies the type, basic equivalent and its numerical value, technical requirements, marking, packaging, transportation and storage of gear helix measuring instruments.
The basic standard is applicable to gear helix measuring instruments with a gear modulus greater than or equal to 0.5mm and a diameter greater than 600mm (hereinafter referred to as basic instruments).
Cited Standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. The versions shown are valid at the time of publication of this standard. All standards will be revised annually. Each party using this standard should consider the possibility of using the latest version of the standard. GBT4879-198S
GB.T 5048-1985
GAT63R8-1986
GR/T11095-1988
1AT9329-1999
3Contents
The following definitions are adopted in this standard.
Rust-proof packaging
Moisture-proof packaging
Transportation shipping and receiving mark
Gradually-cutting column gear accuracy
Instrumentation and metering equipment environmental conditions and test methods 3.! The specifications, definitions and codes of the precision of disconnected column gears involved in this standard shall adopt the provisions of GB/T10095. 3.1 Gear rotation measurement unique
Based on the comparison measuring disk method: the mechanical mechanism drives the corresponding speed transmitter to move relative to the gear being measured, forming an ovoid burning line, and the transmission disk takes the value along this line. The measuring instrument used to measure the thermal control error, 4 types, basic parameters and their values ​​
4. The measurement type and the names of the main parts are shown in Figure 1 [The diagram type is for reference only] Approved by the State Machinery Industry Bureau on 19-05-20
2000-01-01
Full-time pressure
Assisted by the staff
Touch the tooth
JH/T10021--1999
Now the slide!
Measurement of the mother pole's reformation and number of children shall comply with the requirements of Table 1. 4.2
Measurement of the small gear quantitywwW.bzxz.Net
Measurement of the suitable diameter of the gear
Measurement of the upper wheel rate and the core ()
The length of the gear shaft
The optimum gear matching when the internal parts are integrated
Horizontal slide channel static and dynamic specifications
Tip variable tightening force
Light distribution System score ()
Technical requirements
Test times
30-800
5.1 The working surface of the test instrument shall not be damaged or corroded. The non-working surface shall have a protective layer, coating or other protective effects. 5.2 All tight parts shall be firm and reliable, and all moving parts shall be flexible and stable. No jamming or loosening is allowed. 5.3 The pre-fire tilting tolerance of the main shaft is 1.2μm. 5.4 Straightness tolerance of longitudinal slide movement: a) 2.5″ in vertical plane:
b) 3*
in horizontal plane 5.5 Linearity tolerance of longitudinal slide movement:
a) 3*
in vertical plane b) 2.5″
in horizontal plane 5. Parallelism tolerance of the line connecting the shaft pre-tip and the tailstock top fire with the longitudinal slide movement direction (over an estimated length of 100mm) a) 2.5μm in vertical plane:
b) 3.5
JB/T1002t—1999
5. The required straightness tolerance of the horizontal slide movement for the longitudinal clearance frame is 4 μm within the remaining stroke range: 5.B The error & accuracy of the magnification shall not exceed 1.5″3.9
The indication error of the reading table shall not be greater than [”5.10 The value error of the optical dividing system shall not be greater than the current specification in Table 2. Table 2
Range test drive
Indication error
9.11 The accuracy of the position of the optical graduation system is not more than 2μ and 5.12 The indication error of the receiver:
) 15 helical wire sample is not more than 4m
b) 30 helical wire sample is not more than 5m
5.13 The indication variability of the instrument is not more than 1.5m6 Marking, packaging, transportation and storage
6. Measurement The instrument shall be marked with: a) manufacturer’s name or registered trademark; 6) instrument name and number: e) year of manufacture: d) product serial number: 6.2 The transportation and packaging of the instrument shall comply with the requirements of GB/T4879, GBT5048 and GB/T6388. 6.3 The instrument shall be accompanied by a product certificate and product instruction manual. Product certificate! The instrument shall be marked with the product number and product font of this standard. 6.4 The instrument shall comply with the requirements of Section 2 when it is packaged in the transportation package. A1 Test Temporary Part
JE/T16K21-199g
Appendix A
(Standard Appendix)
Test Method
When testing the measuring instrument, the tester shall be kept clean, dust-free, and without operation. The power supply shall meet the requirements of the measuring instrument. 1.2 The test room temperature shall be guaranteed within the range of 202, and the temperature change shall not exceed 1℃/t. The isothermal time of the measuring instrument shall not be less than 24h. The test tool shall be placed together with the measuring instrument, and the isothermal time shall not be less than h. Test items, test methods and test tools 42
Test items, test methods and test results 1 See Table A1. Table AI
The main transmission pre-fire solution
The main shaft tip is in the vertical plane
and the ... Change distance
will automatically set the reverse point in the lack of direction solution, the self-instrument is placed in the body of the instrument 1, the division system is adjusted to the center position, so that the longitudinal frame moves, in the horizontal direction, take the single-sex inspection instrument indication value of the large change of the month direct response set in the direction, the self-independent instrument is continuously compensated 1, the division system is adjusted to 9001 and the 270° position alarm is charged, so that the reversing agent channel is moved or, in the vertical self-level division vehicle, take the control value of the small forced large change between the pressure and the quality, twist the measuring point of the measuring meter beam: make the head feel when the center axis is vertical and the height is connected, the optical potential system is reversed to control it, start the motor: drink stimulate the right slide:, take the comparison value of the large change. During the calibration, the mandrels with lengths of 10mm, 300mm, and 500mm should be used for the test. The wet swab should be installed in the water hole of the measuring frame, so that the axis and the mandrel are in contact in the vertical direction. The instrument is adjusted to 0 degrees, the motor is started, and the frame is moved to the right. The torque comparator should be used to check whether the position of the mandrel does not change. During the calibration, the mandrels with lengths of 10mm, 300mm, and 500mm should be used for the test.5um comparator
m torque ratio light
50mm extension heart pump
Medical and health care information
Correction
Reading the indication position of the device-
Indication value of the optical graduation system
Correction of the graduation system installation
Horizontal slide Liu from the return agent
The degree of science
This is a demonstration test of the English
Instrument indication variability
JB/T10021-999
Table Al (complete}
Will be equipped with 24 same The special mandrel is installed on the main axis 1 of the dial: the door dose meter is fixed for the year, so that the pair of 24 pieces are automatically reduced, and the self-positioning plate pair is equivalent. Make the dial 1 a dose line in the middle of the first pair of gauges, select the number in the automatic calibration, and make the adjacent dose line of the dial 1 return in the last pair of gauges. The autocalibrator reads the full value of the compensation, so as to ensure the accuracy of the device. When controlling the alcohol, the five ranges of 270e-271, 314~315°0°~, 44~45°, 89-90 of the dial should be collected, and the five imaginary numbers should be avoided. Then put the second dial at 2" and 5°, and take the above steps.
degrees turn to, and then to, self-calibrate this
, times, turn from 0 to 2700
times, read the maximum value of the calorific value of the dial four times from the start station every 15 minutes, until, take the average of the values ​​of the dial at each point as the reading point, and put it in the same way, start from the bar, check one point every 15 minutes in the opposite direction, measure to -90F in both positive and negative directions, and then adjust the measurement points to the protection position. The instrument is equipped with a useful comparator, and the head and the rack are passed through the surface of the rack. The amount of change in the comparator's indication is reduced to 90 degrees. The perturbation Move the cover frame by hand, and make the torque ratio wheel head equipped with the torque ratio meter stand contact with the right end face of the inertial slide. During the whole movement of the inertial slide, check the maximum change of the torque ratio indicator. Place the plate between the two tops, and use the +5mm probe to measure the specified position of the sample. Take the maximum value at the sample point and the actual value of the corresponding point of the plate. Use the same probe to store 15\the same position on any side of the sample [period measurement rate: the maximum difference between the values ​​obtained at each corresponding point is tested: N
special spindle
24 (The angle limit
verification error should not exceed 0.5
use
light weight instrument
palm sample "left and right
15° and 30%, tooth change 100mm
the appropriate value is
10.001mm)
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