This standard specifies the calculation method, formula and selection of interference fit. This standard is applicable to the calculation of interference fit and the selection of interference fit for smooth cylindrical surfaces within the elastic range. GB/T 5371-2004 Limits and fits Calculation and selection of interference fit GB/T5371-2004 standard download decompression password: www.bzxz.net

1CS 17.040. 10
National Standard of the People's Republic of China
GR/T 5371—2004
信821—.3s
Limits and Ciis
Interference fit calculation and selection2004-11-11 Released
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China Standardization Administration of China
2005-07-01 implementation
Current model card reference document
Terms and definitions
Calculation symbols
With oxygen meter and selection ratio
Limited A material external agent
With material ball friction coefficient, elastic machine quantity, treatment ratio and line shadow coefficient clothing attached 5 material risk pair)
Excessive coordination diagram algorithm
GE/T5371—2004
GR/T5371-—2G04||t t||This standard does not have the H/T18W limit and the H basis for the combination of the need to comply with the concept and the selection of the supplement, the standard replaces GB/71-198 "Tolerance fit through the whole machine door calculation year selection currency", this standard and 5/1 rent, some changes are as follows:
E) for the extremely good and with a single standard, the revised standard name: h: "What is the difference with the current international standard? The relevant language of this standard has been urgently designed: c added, the technical and fee text name
d] new domestic production of strict development, collection, when the type of attachment D car standard except A, record the material science document record.
This standard is composed of all pressure product size and child technical specifications The technical requirements for standardization are proposed and coordinated by the Technical Committee for Standardization. The drafting positions of this comprehensive standard are: Mechanical Science Research Institute, Renke Electric Vehicle Co., Ltd. Non-standard drafters: Shi Xiaoshi, Zhang Hui1:: The previous versions of the standards replaced by this standard are: Gn/T3371-1985:
Limits and fits
Calculation and selection of interference fit
This standard implements the basic calculation methods of interference fit calculation and the selection of formulas. This non-standard standard only uses the interference fit and interference fit in the field of non-standard applications. ? Normative references
GB/T5371 —2004
The following documents shall be used as the references of this standard. For referenced documents with a date, the revisions of the accompanying documents (excluding those with errors) shall not be applicable to this standard. However, the latest versions of the documents shall apply. For referenced documents without a date, the latest versions shall apply to this standard. 8 (Limited basis Part 2 (2-1
TT1k00.? Subject to the provisions of GB/T 1800.3 and GB/T 1800.3) Part 3: Standard basic part of the standard value table (1S) 2H1K/! E00 Limit deviation table of limit and matching standards for grades and hole sizes VTS029G-2) GB8 Extremely cumulative tolerances and fit selection 11823) 3 Terms and definitions
K1800, 1 The following technical terms and definitions apply to this standard. 3.1
Interference amount 6 amauntof interference control these absolute estimates,
basic interference amount 8 hasic.amnnnt af interfereacc the base straightness of the selected interference fit. Liu Ji hole system matching platform, its shot and other huge benzene damage related absolute value: for the transfer system matching: its compensation and other basic universal absolute when (see letter) axis is belt
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GB/I5371--2004
interference couplingnterferencecoupling
using the same fixed connection formed by the initial inclusion of the parts. 3.3.1
longitudinal interference couplinglenghwaysInterferencecoupllngusing the method of seeking people to achieve the through-disk settlement
transverseinierferencecouplinglateral through-disk connection
using the expansion and contraction to achieve the real connection.
euplingsurfance
The surface of the coupling between the component and the compensating member in the coupling. 3.5
Couplingdiameter
The original diameter of the coupling surface is shown in Figure 2:
Couplinglength i, couplinglength
The length of the coupling is shown in Figure 2)
Diameter ratioydlometerrntin
The ratio of the smaller diameter to the larger diameter of the coupling component and the compensating member is the diameter ratio of the coupling to the compensating member (see Figure 2) The diameter ratio of the coupling to the compensating member is the ratio of the smaller diameter to the larger diameter of the coupling to the compensating member (see Figure 2) The diameter ratio of the coupling to the compensating member is the ratio of the smaller diameter to the larger diameter of the coupling to the compensating member (see Figure 2) 3.B Relative interference The relative interference is the value of the interference and the combined diameter: Spress depth is the surface of the part or the part being covered, S. (see Figure 3). 3.10 Tamauntorpress is the pressure that reduces the interference by the flat depth. It is the sum of the flat depth S of the part being covered and the horizontal depth S of the part being covered. The preouplingpress is the pressure on the surface of the part being covered.
Change amount of diameter changeamountofdiameter3
The change in diameter of the shaft caused by the expansion of the hole. The change in diameter of the contained part is the largest change in the inner diameter of the contained part. The change in diameter of the contained part is the reduction in the contained dead diameter. 3. 13
Effective interference, live amuunl of imterferenccGB/T5371—2004
The interference that works in the interference connection is equal to the sum of the change in the active diameter of the contained part and the change in the active diameter of the contained part. 3. 14
Press-in force P,press-in farce
is the quantity of force applied during the process of pushing the pin through the disc: 3.15
Press-out forcePress-ontfm'ce
is the force applied during the process of pushing the pin out of the disc. Symbols used in calculation
1Calculation symbols mainly conform to, provincial and bi position agent mourning 1 installation
Effective return volume
Price River volume
Ruitai gas grid
Inclusive material outer diameter
But inclusive wire
Combined length method
Natural company volume diameter ratio
GH/T53/1—2904
Table line)
Including learning components of Leping deep Cheng
Love inclusive components of life deep heart
Including case three changes
Inclusive changes
Nurturing force
Transmission force
Grass surprise relative
Poge ratio
Version grid flat
Fake production extreme market
Except for the parts with excitation, the symbols and subscript "-" in the table indicate the parts not shown are wrapped. 5 Calculation and selection of
5.1 Calculation basis
5.1. The elasticity specification of the thick-walled parts is used as the basis for the calculation. The point specification refers to the linear relationship between the deformation of the parts produced by the contraction force and the small deformation, that is, the performance of the parts should be lower than its quality (or.
Calculation assumptions
The wrapped parts and the rear wrapped parts are in a semi-collision state, that is, the axial direction is -0)
The wrapped parts and the contained parts are combined in the combined length as the reference number; the elasticity absorption coefficient of the material:
The degree of calculation is theoretical, and the deformation can be replaced by cold. Calculation formula for diameter change: Diameter change of the package. Diameter change of the package. Effective interference. 5.1.4 For some special shapes or good interference, calculations need to be performed. 4. 5.2 Calculation method: GB/T5371--2004. Calculation can be performed by formula method or by calculation method. For the calculation method, see Appendix B (Data Collection) 5.3 Calculation formula
5.3.1 If the amount required for passing the ball is small and the profit is early, the formula in Table 2 can be used for calculation. Table 2
The transmission of the drug ticket
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white ground line people flower
ask to receive light time force
repair force
war tolerance point film
to tolerate your special operation period of the minimum straight good
change member
mystery package narrow piece transmission reverse to still need the minimum white diameter change
connect the new small effective product
special sense of joy minimum let up
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For solid shaft proof a 13
C. value variable table 4
For the longitudinal connection effect:
S -1. HRa..S -- 1.sRel
The maximum effective force allowed for the connection without causing deformation: It can be calculated according to the formula in Table 3. 5. 3.2
Calculate the maximum combined positive force of the components without causing deformation
The maximum combined positive force of the components without causing plastic deformation
The calculation of the reverse force of the connection without causing plastic deformation
Plastic material
Plastic material
Plastic character loose—.
104. 。 2g
...the double small ones in the connection.. ..
r.-pr---+t-di+i.- μ
can be found in Figure 4
first production, it is worth the blood chart!
Changed axis Q=At this time=5
Production can be recorded in A rate A, "or table, 2
GB/T6371—2004
The maximum diameter change allowed by the plastic exchange shape is the maximum change allowed by the plastic change color history protection
The maximum effective
component does not produce the shape of the calculated
5 =3, 3
Table 3 continued)
R =tias -
Coefficient and G
4 =6, 25
R=G, 3
n, 720
Heart can be produced in
Accurate Beijing table
5.4 Choice of coordination
2, P29
Table 4 line:
2, 329
5.4.1 The profit matching includes the selection of the combination selected according to (3: T1600.2 ~ G3/T1869.4 and (3: T1301 agreed to send 5.4.2, the recording quantity [minimum profit] the profit should meet the following requirements to ensure that the profit worry is in compliance with the provisions of the commercial standard
》Medical certificate joint station does not produce plastic bending
5.4.3 Detailed steps for the selection of risk matching:
New basic over-the-counter recording
General matching, 1
consumption requirements have a greater connection strength reserve, the company reported when more connection parts strength reserve. Sichuan take %! m. c
The tea over-interference and can be combined by itself, the Chinese map Li mouth with the original coupon number, .
GB/T 5371—2G04
:1, 121
5, 357
According to the basic Ruihuang code and ur, T/T1301 and R/T1ACC,/spraying selected fit and in, shaft tolerance zone.
GI/T5371—2004
5. 5 Check calculation
The minimum transmission force F of the physical connection parts can be checked and calculated by checking the formula in Table 5. Table 5
Calculation of the minimum transmission force
The maximum stress of the package
The calculation formula of the package is too
. *-t,-.:
Material
5.6 Calculation of the outer diameter expansion of the package and the inner diameter shrinkage of the contained part
Lor../ -..
·(will-some)
d·（）
The outer diameter expansion of the package and the inner diameter of the contained part can be reduced according to the table. Table 6
Calculation content
The outer diameter expansion of the package
The inner diameter of the contained part is selected
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2 Office:
Inner diameter
p () rate (g)
GB/T5371—2004
Co 5e
ESt-S1Ss
City Health and Medical Bureau
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[087-021Table 5
Calculation of minimum transmission force
Maximum load of the packaged component
The maximum load allowed by the packaged component is calculated according to the calculation formulabZxz.net
.*-t,-.:
Material properties
5.6 Calculation of the expansion of the outer diameter of the packaged component and the reduction of the inner diameter of the contained component
Lor../-..
·(will be-some)
d·（）
The expansion of the outer diameter of the packaged component and the reduction of the inner diameter of the contained component can be calculated according to the calculation formula in Table 1. Table 6
Calculation content
External economic expansion of the included calculation of the small selection of the included calculation
E,1-4>
2 Office:
Internal city
p take () rate (g)
GB/T5371—2004
Co 5e
ESt-S1Ss
City City Health and Medical Bureau
+ -- i
:16 -- 0
[087-021Table 5
Calculation of minimum transmission force
Maximum load of the packaged component
The maximum load allowed by the packaged component is calculated according to the calculation formula
.*-t,-.:
Material properties
5.6 Calculation of the expansion of the outer diameter of the packaged component and the reduction of the inner diameter of the contained component
Lor../-..
·(will be-some)
d·（）
The expansion of the outer diameter of the packaged component and the reduction of the inner diameter of the contained component can be calculated according to the calculation formula in Table 1. Table 6
Calculation content
External economic expansion of the included calculation of the small selection of the included calculation
E,1-4>
2 Office:
Internal city
p take () rate (g)
GB/T5371—2004
Co 5e
ESt-S1Ss
City City Health and Medical Bureau
+ -- i
:16 -- 0
[087-021
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