CN203480364U - Tolerance and limit-deviation query instrument - Google Patents
Tolerance and limit-deviation query instrument Download PDFInfo
- Publication number
- CN203480364U CN203480364U CN201320515149.4U CN201320515149U CN203480364U CN 203480364 U CN203480364 U CN 203480364U CN 201320515149 U CN201320515149 U CN 201320515149U CN 203480364 U CN203480364 U CN 203480364U
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- tolerance
- data
- axle
- deviation
- gear
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Abstract
The utility model discloses a tolerance and limit-deviation query instrument. The tolerance and limit-deviation query instrument is characterized in that a driving roller (13) and a driven roller (3) are arranged in a shell (1) in parallel by a rotary short pin shaft (2) and a rotary long pin shaft (4); the rotary long pin shaft of the driven roller (3) is provided with a driven gear (6); the rotary long pin shaft of the driving roller (13) is provided with a driving gear (11) and a knob component (9); the shell (1) is provided with a transition gear (7) by a transition wheel pin shaft (8); the driving gear (11) is meshed with the driven gear (6) by the transition gear (7); and a data tape (14) is adhered on the circumferential direction of the driving roller (13) and the driven roller (3) in an 8 shape; and a data sheet (15) is bonded on a transparent panel (12) which is arranged on the shell (1) so as to form the tolerance and limit-deviation query instrument wholly. The tolerance and limit-deviation query instrument disclosed by the utility model has the advantages that the structure is simple, the cost is low, the operation is convenient, the volume is small, the carrying is convenient, complete related standards and manuals do not need to be prepared, the query efficiency is improved and the error rate is reduced.
Description
Technical field
The utility model relates to the tolerance inquiry instrument in machine design and manufacture field, is specifically related to national standard (GB1800-79, GB1801-79) and cylindrical fit tolerance and the limit deviation inquiring instrument in conventional other relevant criterion (DIN ISO286-2, JP JIS B0401-2, RU25346-89) in the world.
Background technology
In the machinery industry personnel working processes such as Machine Design, machining, Design of Dies, digital control processing, all need to inquire about national standard (GB1800-79, GB1801-79) and the hole in the length tolerance value in conventional other relevant criterion (DIN ISO286-2, JP JIS B0401-2, RU25346-89) and basic deviation, cylindrical fit and standard of tolerance grade and the limit deviation of axle in the world.Due to national standard and the kind of the nominal size classification in other conventional relevant criterion, tolerance grade grade, basic deviation is a lot of in the world, cause the data in each standard huge, Machine Design and manufacture practitioner inquire about and need to get all the relevant standard data and handbook ready, search efficiency is low, and easily causes inquiry error.
Summary of the invention
The purpose of this utility model is: provide that a kind of usable range is wide, simple and fast, portable tolerance and limit deviation inquiring instrument, this inquiring instrument can directly be searched tolerance and limit deviation, without preparing neat relevant criterion and handbook, improve search efficiency, reduce error rate.
The utility model solves the technical scheme that its technical matters adopts: this tolerance and limit deviation inquiring instrument comprise housing, rotate short pin shaft, passive roller, rotate have strong market potential axle, tensioning torsion spring, driven gear, transition gear, transition wheel bearing pin, knob, holddown spring, driving gear, transparent panel, data band, tables of data, active roll tube, the two ends of passive roller are respectively through rotating short pin shaft, the rotation axle of having strong market potential is installed in parallel in housing, on passive roller, through tensioning torsion spring, driven gear is installed, on active roll tube, through holddown spring, driving gear is installed, knob is installed on active roll tube, knob is positioned at outside housing, two transition wheel bearing pins are installed on the housing of having strong market potential between axle in two rotations, transition gear is arranged on transition wheel bearing pin, driving gear meshes driven gear through transition gear, data band sticks in the circumferential of active roll tube and passive roller with the arrangement of the figure of eight, tables of data sticks on transparent panel, transparent panel is arranged on housing, whole formation tolerance and limit deviation inquiring instrument.
Wherein, data band is rectangular belt body, tow sides by the data printing of the tolerance grade grade in all standards that will inquire about, basic deviation, limit deviation at rectangular belt body, the tolerance of the back face printing axle of rectangular belt body and limit deviation data, the tolerance of the front printing hole of rectangular belt body and limit deviation data.
Wherein, what the tables of data of transparent panel showed is the tolerance range of axle and the tolerance range in hole, the tolerance range of axle up, the tolerance range in hole below, display window is established in the centre of tables of data.
According to the nominal size of the hole that will inquire about or axle, basic deviation and accuracy class, the position (above tolerance inquiry instrument) of tolerance range of the axle on the transparent panel of first definite tolerance inquiry instrument is, the position (below tolerance inquiry instrument) of the tolerance range in hole, turning knob, drive data Tape movement, find and will look into the basic deviation of tolerance and that a line of accuracy class; Then those row of the nominal size of transversely searching, walking crosswise data corresponding to data band that perpendicular row cross is exactly the limit deviation that will look into; Finally, by the upper deviation, deducting lower deviation is exactly tolerance value.
The utlity model has following advantage: 1, tolerance and limit deviation inquiring instrument usable range are wide, be suitable for the practitioner in the whole field of machine design and manufacture; 2, broad covered area, the nominal size (0～500mm) in national standard (GB1800-79, GB1801-79) and other working standards is available in all varieties from 28 ranks in A～Zc hole and 28 other tolerances of level of tolerance and the limit deviation of a～zc axle with interior all classifications, basic deviation; 3, simple in structure, with low cost, easy to operate, apparent size is little, is easy to carry, and has good market outlook and practical value.
Accompanying drawing explanation
Fig. 1 is tolerance inquiry instrument three-dimensional model diagram of the present utility model.
Fig. 2 is tolerance inquiry instrument panel schematic diagram of the present utility model.
Fig. 3 is tolerance inquiry instrument data band pros and cons schematic diagram of the present utility model.
Fig. 4 is tolerance inquiry instrument structural representation of the present utility model.
In figure: 1 housing, 2 rotate short pin shaft, 3 passive rollers, 4 rotate the axle of having strong market potential, 5 tensioning torsion springs, 6 driven gears, 7 transition gears, 8 transition wheel bearing pins, 9 knobs, 10 holddown springs, 11 driving gears, 12 transparent panels, 13 active roll tubes, 14 data bands, 15 tables of data.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As Figure 1-4, this tolerance and limit deviation inquiring instrument comprise housing 1, rotate short pin shaft 2, active roll tube 13, passive roller 3, the rotation axle 4 of having strong market potential, tensioning torsion spring 5, driven gear 6, transition gear 7, transition wheel bearing pin 8, knob 9, holddown spring 10, driving gear 11, transparent panel 12, data band 14 and tables of data 15, active roll tube 13, the two ends of passive roller 3 are respectively through rotating short pin shaft 2, the rotation axle 4 of having strong market potential is installed in parallel in housing 1, the rotation of passive roller 3 is had strong market potential and through tensioning torsion spring 5, driven gears 6 is installed on axle, the rotation of active roll tube 13 is had strong market potential and through holddown spring 10, driving gears 11 is installed on axle, the rotation of active roll tube 13 is had strong market potential on axle knob 9 is installed, knob 9 is positioned at outside housing 1, on the housing 1 of having strong market potential between axle 4 in two rotations, transition wheel bearing pin 8 is installed, transition gear 7 is arranged on transition wheel bearing pin 8, driving gear 11 is through transition gear 7 engagement driven gears 6, the arrangement of the data band 14 use figures of eight sticks in the circumferential of active roll tube 13 and passive roller 3, tables of data 15 sticks on transparent panel 12, transparent panel 12 is arranged on housing 1, whole formation tolerance and limit deviation inquiring instrument.
Wherein, data band 14 is rectangular belt body, tow sides by the data printing of the tolerance grade grade in all standards that will inquire about, basic deviation, limit deviation at rectangular belt body, the tolerance of the back face printing axle of rectangular belt body and limit deviation data, the tolerance of the front printing hole of rectangular belt body and limit deviation data.
Wherein, what the tables of data of transparent panel 12 15 showed is the tolerance range of axle and the tolerance range in hole, the tolerance range of axle up, the tolerance range in hole below, display window is established in the centre of tables of data 15.
According to the nominal size of the hole that will inquire about or axle, basic deviation and accuracy class, the position (above tolerance inquiry instrument) of tolerance range of the axle on the transparent panel 12 of first definite tolerance inquiry instrument is, the position (below tolerance inquiry instrument) of the tolerance range in hole, turning knob 9, drive data band 14 to move, find and will look into the basic deviation of tolerance and that a line of accuracy class; Then those row of the nominal size of transversely searching, walking crosswise data corresponding to data band that perpendicular row cross is exactly the limit deviation that will look into; Finally, by the upper deviation, deducting lower deviation is exactly tolerance value.
Claims (3)
1. tolerance and limit deviation inquiring instrument, is characterized in that: this tolerance and limit deviation inquiring instrument comprise housing (1), rotate short pin shaft (2), active roll tube (13), passive roller (3), the rotation axle (4) of having strong market potential, tensioning torsion spring (5), driven gear (6), transition gear (7), transition wheel bearing pin (8), knob assembly (9), holddown spring (10), driving gear (11), transparent panel (12), data band (14) and tables of data (15), active roll tube (13), the two ends of passive roller (3) are respectively through rotating short pin shaft (2), the rotation axle (4) of having strong market potential is installed in parallel in housing (1), the rotation of passive roller (3) is had strong market potential and through tensioning torsion spring (5), driven gear (6) is installed on axle, the rotation of active roll tube (13) is had strong market potential and through holddown spring (10), driving gear (11) is installed on axle, the rotation of active roll tube (13) is had strong market potential on axle knob (9) is installed, knob is positioned at outside housing (1), upper two the transition wheel bearing pins (8) of installing of housing (1) of having strong market potential between axle (4) in two rotations, transition gear (7) is arranged on transition wheel bearing pin (8), driving gear (11) is through transition gear (7) engagement driven gear (6), data band (14) sticks in the circumferential of active roll tube (13) and passive roller (3) with the arrangement of the figure of eight, tables of data (15) sticks on transparent panel (12), transparent panel (12) is arranged on housing (1), whole formation tolerance and limit deviation inquiring instrument.
2. tolerance according to claim 1 and limit deviation inquiring instrument, it is characterized in that: data band (14) is rectangular belt body, tow sides by the data printing of the tolerance grade grade in all standards that will inquire about, basic deviation, limit deviation at rectangular belt body, the tolerance of the back face printing axle of rectangular belt body and limit deviation data, the tolerance of the front printing hole of rectangular belt body and limit deviation data.
3. tolerance according to claim 1 and limit deviation inquiring instrument, it is characterized in that: what the tables of data (15) of transparent panel (12) showed is the tolerance range of axle and the tolerance range in hole, the tolerance range of axle up, the tolerance range in hole below, display window is established in the centre of tables of data 15.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320515149.4U CN203480364U (en) | 2013-08-22 | 2013-08-22 | Tolerance and limit-deviation query instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320515149.4U CN203480364U (en) | 2013-08-22 | 2013-08-22 | Tolerance and limit-deviation query instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203480364U true CN203480364U (en) | 2014-03-12 |
Family
ID=50228663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320515149.4U Expired - Fee Related CN203480364U (en) | 2013-08-22 | 2013-08-22 | Tolerance and limit-deviation query instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203480364U (en) |
-
2013
- 2013-08-22 CN CN201320515149.4U patent/CN203480364U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140312 Termination date: 20160822 |