CN203337077U - Shaft keyway symmetry degree measuring device - Google Patents
Shaft keyway symmetry degree measuring device Download PDFInfo
- Publication number
- CN203337077U CN203337077U CN2013204655215U CN201320465521U CN203337077U CN 203337077 U CN203337077 U CN 203337077U CN 2013204655215 U CN2013204655215 U CN 2013204655215U CN 201320465521 U CN201320465521 U CN 201320465521U CN 203337077 U CN203337077 U CN 203337077U
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- annular gauge
- seben
- key
- width
- gauge
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model discloses a shaft keyway symmetry degree measuring device composed of a blocking board and an annular gauge. The blocking board plane has a rectangular step shape, the width of the H end of the blocking board is the width of a keyway to be measured, and the width of the h end of the blocking board is the opening width of a measuring slot M of the annular gauge. The annular gauge has a cylindrical annular ring structure, the inner diameter of the annular gauge equals to the outer diameter of a shaft in which the keyway to be measured is formed, a straight slot is formed in one side of the annular gauge in the axial direction, and the measuring slot M is formed in the other side of the annular gauge, wherein the length of the measuring slot M is about 1/3 of the length of the annular gauge. According to the utility model, the blocking board having a rectangular step shaped is adopted, so that the shaft keyway symmetry degree measuring device can be used only by using one annular gauge and cooperating with a multiple of blocking boards, measurement can be performed on various products, and the convenience and the practicability of the shaft keyway symmetry degree measuring device of the utility model can be shown. According to the utility model, a strict symmetry position requirement exists between the measuring slot M of the annular gauge and an installation hole D, the symmetry degree requirement is 0.01mm, so that the accuracy of the measuring device itself can be improved.
Description
Technical field
The utility model relates to the key-groove symmetry tester of surveying instrument, particularly a kind of axle in the manufacture process of engineering goods axis.
Background technology
Often can run in Design of Mechanical Product two parts or more part are linked together, the connection here refers generally to static connection, generally, four kinds of connected modes is arranged:
1, be threaded;
2, key, spline, pin connect.As Figure 1-Figure 4 be that the mode that connects by key of transmission shaft 3 is to gear 1 transmitting torque and power;
3, interference connects;
4, weld, glue, be riveting and connect.
It is very extensive that key is connected in mechanical drive application, every existence that machine has key to connect, and this one of them more typical case is exactly the connection (see figure 1) between gear 1 and axle 3.In this structure, to the correlation parameter of the keyway (seeing Fig. 2-3) of axle head, require stricter.In process, the axle head keyway processes with cotter mill cutter by benchmark A location.In measurement, the higher (see figure 4) of measurement difficulty of the symmetry of the benchmark A in the relative axle center of keyway W.Also do not have at present a kind of simple, reliable surveying instrument and technology to realize the measurement to keyway symmetry.
Summary of the invention
The problems referred to above that exist for solving prior art, the utility model will design a kind of simple and direct, practical, key-groove symmetry tester of axle reliably.
To achieve these goals, the technical solution of the utility model is as follows: a kind of key-groove symmetry tester of axle is comprised of seben and annular gauge.Described seben plane is the rectangle step shape, the A/F of the measuring flume M that the width of the width that the width of the H end of seben is keyway to be measured, the h end of seben is annular gauge; Described annular gauge is the cylinder loop configuration, and the internal diameter of annular gauge equates with the external diameter of keyway to be measured place axle, and a side of annular gauge has vertically and opens groove, opposite side has measuring flume M, and the length of measuring flume M is about 1/3 of annular gauge length; The h end of described seben is stuck in the measuring flume M of annular gauge, and the tolerance clearance value between the measuring flume M of the h of seben end and annular gauge is less than or equal to the symmetry tolerance value of the keyway of axle; The measuring flume M of described annular gauge and mounting hole D have strict symmetric position degree requirement, and the symmetric position degree of the relative mounting hole D of measuring flume M is 0.01mm.
Seben described in the utility model has polylith, the width that the width that the width of the h end of every seben is fixed value, H end is corresponding different keyways.
The outer round surface of annular gauge described in the utility model is knurled surface or knife mark surface.
Compared with prior art, the utlity model has following beneficial effect:
If 1 is designed to straight plate shape (filling in shaft key groove end H end and measured end h end wide) by seben, there will be a plurality of sebens and a plurality of annular gauge, cost is high like this, easily obscures, and is not easy to field management.Therefore the utility model adopts rectangle step seben, so only with an annular gauge, coordinates a plurality of sebens to use and gets final product, and can be measured multiple product, has embodied simple and direct property of the present invention, practicality.
2, the measuring flume M of annular gauge of the present utility model and mounting hole D have strict symmetric position degree requirement, and this symmetry requires, for 0.01mm, to improve like this precision of measurement mechanism self, thereby improved reliability of the present invention.
3, the mounting hole D of annular gauge of the present utility model is exactly the center pit of annular gauge, have and axially open groove at the opposite side of the measuring flume M of annular gauge, make annular gauge can hold axle tightly, both eliminated the tolerance clearance between mounting hole D and axle, annular gauge can move again vertically.Use more practical reliable.
The accompanying drawing explanation
14, the total accompanying drawing of the utility model, wherein:
Fig. 1 is the transmission shaft structure schematic diagram of key connected mode.
Fig. 2 is axle and axle head keyway arrangements schematic diagram.
Fig. 3 is that the K of Fig. 2 is to view.
Fig. 4 is the A-A cut-open view of Fig. 2.
Fig. 5 is structural representation of the present utility model.
Fig. 6 is the left view of Fig. 5.
Fig. 7 is the vertical view of Fig. 5.
Fig. 8 is the structural representation of seben.
Fig. 9 is the left view of Fig. 8.
Figure 10 is annular gauge structure schematic diagram.
Figure 11 is the left view of Figure 10.
Figure 12 is the vertical view of Figure 10.
Figure 13 is the position view that seben is filled in axle head.
Figure 14 is the B-B cut-open view of Figure 13.
In figure: 1, gear, 2, key, 3, axle, 4, seben, 5, annular gauge.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further.As shown in Fig. 5-14, a kind of key-groove symmetry tester of axle (seeing Fig. 5-7), by seben 4 and annular gauge 5, formed, described seben 4(is shown in Fig. 8) plane is the rectangle step shape, the A/F of the measuring flume M that the width of the width that the width of the H end of seben 4 is key 2 grooves to be measured, the h end of seben 4 is annular gauge 5; Described annular gauge 5 is cylinder loop configuration (see figure 10), the internal diameter of annular gauge 5 equates with the external diameter of key 2 groove place axles 3 to be measured, the annular gauge 5 a side along axle 3 open groove to having, opposite side has measuring flume M, the length of measuring flume M is about 1/3 of annular gauge 5 length; The h end of described seben 4 is stuck in the measuring flume M of annular gauge 5, and the tolerance clearance value between the measuring flume M of the h of seben 4 end and annular gauge 5 is less than or equal to the symmetry tolerance value of key 2 grooves of axle 3; Measuring flume M and the mounting hole D(of described annular gauge 5 are shown in Figure 11) strict symmetric position degree requirement is arranged, the symmetric position degree of the relative mounting hole D of measuring flume M is 0.01mm.Described seben 4 has polylith, the width that the width that the width of the h end of every seben 4 is fixed value, H end is corresponding different key 2 grooves.The outer round surface of described annular gauge 5 is knurled surface or knife mark surface (seeing Figure 12).
Principle of the present utility model is as follows:
As shown in Fig. 5-7, utilize excessive part seben 4 that key 2 grooves are changed into to a surface by internal feature, and then the symmetry that detects relative axle 3 heart benchmark A of this outside feature get final product.Concrete operation instruction: by the H of seben 4 end, plug is to the key 2 groove W interior (seeing Figure 13) of axle 3, and seben 4 natures can be extended to the symmetry error of key 2 grooves the h end of seben 4.With the measuring flume M of annular gauge 5, the h end of seben 4 is measured.If the h end that the opening of measuring flume M can be by seben 4, judge that the symmetry of key 2 grooves of axle 3 is qualified, otherwise defective (seeing Figure 14).
One, seben 4 and requirement thereof
1, the H of seben 4 end is to fill in key 2 groove ends, must form little clearance fit with key 2 grooves of measured axis 3, can realize little clearance fit for guaranteeing key 2 grooves in full margin tolerance, can be by axle 3 key 2 groove size groupings, design respectively the width value of the H end of the seben 4 be complementary with it according to every group of key 2 groove sizes, corresponding so some key 2 grooves can have several groups of sebens 4 to be complementary with it.
2, the tested position h of seben 4 end, be shown in Fig. 5 with the measuring flume M(of annular gauge 5 grooves) gap that forms, this gap width is less than or equals the key 2 groove symmetry tolerance value a of axle 3.
3, the H of seben 4 end will have strict demand with the symmetry of h end, to improve the precision of surveying instrument self.
Two, annular gauge 5 and requirement thereof
1, the measuring flume M of annular gauge 5 must have strict symmetric position degree requirement with mounting hole D, and this symmetry must be little, improves like this precision of surveying instrument self.
2, mounting hole D is exactly the center pit of annular gauge 5, at the measuring flume M of annular gauge 5 opening opposite shaft 3, to the groove of opening, makes annular gauge 5 can hold axle 3 tightly, has both eliminated the tolerance clearance between mounting hole D and axle 3, and annular gauge 5 can move along axle 3 again.So just can measure (see figure 6).
3, for hand-held convenience, workable, can carry out annular knurl at annular gauge 5 cylindricals, car goes out the processing such as knife mark.
Three, measuring method
First select the seben 4 of coupling while 1, implementing to measure, the H end plug of seben 4 is advanced to key 2 grooves of axle 3, as shown in Figure 6.
2, after fixing seben 4, the mounting hole D of annular gauge 5 is inserted in to axle 3 footpaths, then along radially seben 4 directions slips of axle 3, the measuring flume M opening of annular gauge 5 is aimed to the h end of seben 4 simultaneously.
3, the h end that the measuring flume M mouth of annular gauge 5 can be by seben 4, judge that the symmetry of key 2 grooves of axle 3 is qualified; Otherwise the key 2 groove symmetries of just judging axle 3 are defective.
Claims (3)
1. the key-groove symmetry tester of an axle, it is characterized in that: by seben (4) and annular gauge (5), formed, described seben (4) plane is the rectangle step shape, the A/F of the measuring flume M that the width of the width that the width of the H end of seben (4) is key to be measured (2) groove, the h end of seben (4) is annular gauge (5); Described annular gauge (5) is the cylinder loop configuration, the internal diameter of annular gauge (5) equates with the external diameter of key to be measured (2) groove place axle (3), the annular gauge (5) a side along axle (3) open groove to having, opposite side has measuring flume M, the length of measuring flume M is about 1/3 of annular gauge (5) length; The h end of described seben (4) is stuck in the measuring flume M of annular gauge (5), and the tolerance clearance value between the measuring flume M of the h of seben (4) end and annular gauge (5) is less than or equal to the symmetry tolerance value of key (2) groove of axle (3); The measuring flume M of described annular gauge (5) and mounting hole D have strict symmetric position degree requirement, and the symmetric position degree of the relative mounting hole D of measuring flume M is 0.01mm.
2. the key-groove symmetry tester of a kind of axle according to claim 1, it is characterized in that: described seben (4) has polylith, the width that the width that the width of the h end of every seben (4) is fixed value, H end is corresponding different key (2) groove.
3. the key-groove symmetry tester of a kind of axle according to claim 1, it is characterized in that: the outer round surface of described annular gauge (5) is knurled surface or knife mark surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204655215U CN203337077U (en) | 2013-07-31 | 2013-07-31 | Shaft keyway symmetry degree measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204655215U CN203337077U (en) | 2013-07-31 | 2013-07-31 | Shaft keyway symmetry degree measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203337077U true CN203337077U (en) | 2013-12-11 |
Family
ID=49705747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013204655215U Expired - Fee Related CN203337077U (en) | 2013-07-31 | 2013-07-31 | Shaft keyway symmetry degree measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203337077U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105157539A (en) * | 2015-05-06 | 2015-12-16 | 大连创新零部件制造公司 | Centering shaft keyway symmetry measuring device and measuring method |
-
2013
- 2013-07-31 CN CN2013204655215U patent/CN203337077U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105157539A (en) * | 2015-05-06 | 2015-12-16 | 大连创新零部件制造公司 | Centering shaft keyway symmetry measuring device and measuring method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131211 Termination date: 20150731 |
|
| EXPY | Termination of patent right or utility model |