CN202229700U - Measuring tool of outer needle valve seat surface of diesel engine - Google Patents
Measuring tool of outer needle valve seat surface of diesel engine Download PDFInfo
- Publication number
- CN202229700U CN202229700U CN2011203564737U CN201120356473U CN202229700U CN 202229700 U CN202229700 U CN 202229700U CN 2011203564737 U CN2011203564737 U CN 2011203564737U CN 201120356473 U CN201120356473 U CN 201120356473U CN 202229700 U CN202229700 U CN 202229700U
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- China
- Prior art keywords
- valve
- outer needle
- diesel engine
- location
- seat surface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model discloses a measuring tool of an outer needle valve sear surface of a diesel engine. The measuring tool includes a bottom plate and also includes an angle square arranged in the front of the bottom plate fixedly; a positioning plate adhering on a perpendicular face of the angle square and having a positioning plate opening; a positioning seat arranged in the middle of the bottom plate fixedly; and a standard valve arranged on the positioning seat. A non-measuring part in a front part of the standard valve is inserted in the positioning opening. A center hole is arranged in the center of a rear part of the standard valve. The measuring tool also includes a measuring head arranged in the center hole in the rear part of the standard valve; and a dial indicator arranged in the rear of the bottom plate. The measuring tool of the outer needle valve surface of the diesel engine in the utility model can measure the size of the outer needle valve seat surface effectively and accurately, thereby guaranteeing the contact position of the outer needle valve surface and a needle valve.
Description
Technical field
The utility model relates to a kind of survey instrument, the survey instrument of the outer needle-valve seat surface of particularly a kind of diesel engine.
Background technology
The accuracy of outer needle-valve seat surface is very big to the overall performance influence of diesel fuel system, and by existing job operation, if there is not effectively to measure the instrument of the conical surface, the contact position of its seat surface and needle-valve body is difficult to guarantee.
Outer needle-valve is after processing, and conical surface angle might be overproof.Under this situation, influenced opening pressure after the assembling, it is bad to cause atomizing, and influences the performance of diesel engine.
In the prior art; Measuring method can't be measured the conical surface; Through calculating the length dimension corresponding at conical surface Φ 10 places is 83.77 ± 0.02, and this size is on 61 ° of conical surfaces and the intersecting lens of Φ 10 cylindricals and the Φ 24 (0.1/-0.2) distance between the outer disk (seeing figure one).So can't can only use methods such as measuring room projection and three-dimensional to measure through the routine measurement method, be not suitable for production scene batch machining check.
The utility model content
The purpose of the utility model provides the survey instrument of the outer needle-valve seat surface of a kind of diesel engine, can be effectively, accurately measure the size of outer needle-valve seat surface, guaranteed the contact position of outer needle-valve seat surface and needle-valve body.
In order to realize above purpose, the utility model is realized through following technical scheme:
The survey instrument of the outer needle-valve seat surface of a kind of diesel engine comprises base plate, also comprises:
Angle square, described angle square is fixedly installed on the base plate front portion;
Location-plate, described location-plate are close on the vertical plane of angle square, and this location-plate is provided with the location-plate opening;
Positioning seat, described positioning seat is fixedly installed on the middle part of base plate;
Standard valve, described standard valve are arranged on the mounting groove of positioning seat, and the non-measure portion of the front portion of this standard valve is plugged in the location-plate opening, and its center, rear portion is provided with center pit;
Measuring head, described measuring head are arranged in the center pit at standard valve rear portion;
The percentage gauge stand, described percentage gauge stand is arranged on the base plate rear portion.
The verticality of two right-angle sides of described angle square is not more than 0.01.
Standard valve and part to be measured measure-alike.
The width dimensions of described location-plate opening is identical with the diameter in the cross section, initial measured place of standard valve.
The mounting groove of described positioning seat is a V-type.
The utility model compared with prior art has the following advantages:
1, can be effectively, accurately measure the size of outer needle-valve seat surface;
2, guaranteed the contact position of outer needle-valve seat surface and needle-valve body.
Description of drawings
Fig. 1 is the structural representation of the outer needle-valve of a kind of diesel engine of the utility model measurement;
Fig. 2 is the structural representation of the survey instrument of the outer needle-valve seat surface of a kind of diesel engine of the utility model;
Fig. 3 is the front view of the standard valve of survey instrument shown in Figure 2;
Fig. 4 is the front view of the angle square of survey instrument shown in Figure 2;
Fig. 5 is the left view of the location-plate of survey instrument shown in Figure 2;
Fig. 6 is the front view of the location-plate of survey instrument shown in Figure 2;
Fig. 7 looks cut-open view for the left side of the percentage gauge stand of survey instrument shown in Figure 2;
Fig. 8 is the cut-open view of the positioning seat of survey instrument shown in Figure 2;
Fig. 9 is the cut-open view of the measuring head of survey instrument shown in Figure 2.
Embodiment
Below in conjunction with accompanying drawing,, the utility model is done further elaboration through specifying a preferable specific embodiment.
As shown in Figure 1; In the present embodiment, the seat surface of the outer needle-valve of diesel engine is on 61 ° of conical surfaces, gets the cylindrical of Φ 10mm and the cylindrical of Φ 11.5mm; 61 ° of conical surfaces and Φ 11.5mm cylindrical joining distance of round to Φ 10mm are: (11.5-10)/2 ÷ tan (61/2) °=1.273mm; Therefore, 83.77 ± 0.02 mm are of a size of: (82.5+1.273) mm=83.773mm, wherein 0.003mm can ignore to the influence of the conical surface.
As shown in Figure 2, the survey instrument of the outer needle-valve seat surface of a kind of diesel engine comprises base plate 10, angle square 3, location-plate 4, standard valve 5, positioning seat 6, measuring head 7, percentage gauge stand 8.
Like Fig. 2, shown in Figure 4, wherein, angle square 3 is fixedly installed on base plate anterior 101 through screw and straight pin; In the present embodiment, the vertical plane of this angle square 3 is labeled as the A reference field, and this A reference field becomes 90 ° of angles with another surface level; Wherein, verticality is not more than 0.01.
Like Fig. 2, Fig. 5 and shown in Figure 6, location-plate 4 is close to the A reference field setting of angle square 3, and this location-plate 4 is movable, can be according to its thickness d of length adjustment of part to be measured
1Size, this location-plate 4 also is provided with location-plate opening 41, the width dimensions d of this location-plate opening 41
2Identical with the diameter in the cross section, initial measured place of standard valve 5, this cross section is labeled as the B cross section, and the diameter at this place is Φ 10mm, in the present embodiment promptly, and the width dimensions d of this location-plate opening 41
2Be 10 ± 0.01mm, the size of needle-valve is the length dimension at conical surface Φ 10mm place outside the diesel engine shown in Figure 1 that can guarantee like this to measure.
Like Fig. 2, shown in Figure 8; Positioning seat 6 is fixedly installed on the middle part of base plate 10 through screw and straight pin; In the present embodiment, the mounting groove 61 of this positioning seat 6 is a V-type, so this positioning seat 6 is the V-type positioning seat; When this V-type positioning seat can guarantee the outside cylinder location of each part, center reference was consistent.
Like Fig. 2, Fig. 3 and shown in Figure 8, standard valve 5 is arranged on the mounting groove 61 of positioning seat 6, and these standard valve 5 anterior non-measure portion are plugged in the location-plate opening 41, and its center, rear portion then is provided with center pit 51; After machining, this standard valve 5 send whether measurement centre's projection measurement calibrating conical surface Φ 10 director's degree sizes are 83.77 ± 0.02mm, and promptly whether identical with the size of the outer needle-valve of diesel engine.
Like Fig. 2, Fig. 3 and shown in Figure 9, measuring head 7 is arranged in the center pit 51 at standard valve 5 rear portions, and the measuring position that can guarantee dial gauge is the center of outer needle-valve.
Like Fig. 2, shown in Figure 7, percentage gauge stand 8 is arranged on base plate rear portion 102 through screw retention, and dial gauge 9 is plugged on the percentage gauge stand 8 through the aperture on the percentage gauge stand 8 81.
When measuring; At first will pass through the correct standard valve 5 of calibrating is placed on the positioning seat 6 and its front end is injected in the location-plate opening 41 of location-plate 4; Size through location-plate opening 41 again, the length dimension at check and correction standard valve Φ 10 places whether with take dimensions consistently, load onto measuring head 7 at last; After dial gauge 9 touched measuring head 7, the dial plate of dial gauge 9 was adjusted to zero-bit.Because the length of standard valve 5 is 83.77 ± 0.02; Use relative method during measurement, promptly standard valve 5 is compared with the outer needle-valve of diesel engine, and the video data of dial gauge 9 is exactly the physical length of plus-minus 83.77; For example; Dial gauge is shown as the big 0.03mm of zero-bit, and the length of actual outer needle-valve is exactly 83.77+0.03=83.80, promptly knows the correctness of the outer needle-valve seat surface size of diesel engine in this way.
Certainly, when part to be measured is difficult to the part of accurately measurement for other, can measure through the described survey instrument of the utility model equally.
In sum, the survey instrument of the outer needle-valve seat surface of a kind of diesel engine of the utility model can be effectively, accurately measure the size of outer needle-valve seat surface, guaranteed the contact position of outer needle-valve seat surface and needle-valve body.
Although the content of the utility model has been done detailed introduction through above-mentioned preferred embodiment, will be appreciated that above-mentioned description should not be considered to the restriction to the utility model.After those skilled in the art have read foregoing, for the multiple modification of the utility model with to substitute all will be conspicuous.Therefore, the protection domain of the utility model should be limited appended claim.
Claims (5)
1. the survey instrument of the outer needle-valve seat surface of diesel engine comprises base plate (10), it is characterized in that, also comprises:
Angle square (3), described angle square (3) is fixedly installed on base plate front portion (101);
Location-plate (4), described location-plate (4) is close on the vertical plane of angle square (3), and this location-plate (4) is provided with location-plate opening (41);
Positioning seat (6), described positioning seat (6) is fixedly installed on the middle part of base plate (10);
Standard valve (5), described standard valve (5) are arranged on the mounting groove (61) of positioning seat (6), and the non-measure portion of the front portion of this standard valve (5) is plugged in the location-plate opening (41), and its center, rear portion is provided with center pit (51);
Measuring head (7), described measuring head (7) are arranged in the center pit (51) at standard valve (5) rear portion;
Percentage gauge stand (8), described percentage gauge stand (8) is arranged on base plate rear portion (102).
2. the survey instrument of the outer needle-valve seat surface of diesel engine according to claim 1 is characterized in that the verticality of two right-angle sides of described angle square (3) is not more than 0.01.
3. the survey instrument of the outer needle-valve seat surface of diesel engine according to claim 1 is characterized in that, the size of standard valve (5) and part to be measured measure-alike.
4. the survey instrument of the outer needle-valve seat surface of diesel engine according to claim 3 is characterized in that the width dimensions of described location-plate opening (41) is identical with the diameter in the cross section, initial measured place of standard valve (5).
5. the survey instrument of the outer needle-valve seat surface of diesel engine according to claim 1 is characterized in that the mounting groove (61) of described positioning seat (6) is a V-type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203564737U CN202229700U (en) | 2011-09-22 | 2011-09-22 | Measuring tool of outer needle valve seat surface of diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203564737U CN202229700U (en) | 2011-09-22 | 2011-09-22 | Measuring tool of outer needle valve seat surface of diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202229700U true CN202229700U (en) | 2012-05-23 |
Family
ID=46080285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203564737U Expired - Lifetime CN202229700U (en) | 2011-09-22 | 2011-09-22 | Measuring tool of outer needle valve seat surface of diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202229700U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103615957A (en) * | 2013-12-11 | 2014-03-05 | 中国航空工业标准件制造有限责任公司 | Measuring tool for measuring size of D-shaped head |
| CN105277105A (en) * | 2015-11-30 | 2016-01-27 | 沈阳飞机工业（集团）有限公司 | Perpendicularity measurement tool |
| CN106017254A (en) * | 2016-06-30 | 2016-10-12 | 广州市昊志机电股份有限公司 | Detection device for detecting electric spindle chuck |
-
2011
- 2011-09-22 CN CN2011203564737U patent/CN202229700U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103615957A (en) * | 2013-12-11 | 2014-03-05 | 中国航空工业标准件制造有限责任公司 | Measuring tool for measuring size of D-shaped head |
| CN105277105A (en) * | 2015-11-30 | 2016-01-27 | 沈阳飞机工业（集团）有限公司 | Perpendicularity measurement tool |
| CN106017254A (en) * | 2016-06-30 | 2016-10-12 | 广州市昊志机电股份有限公司 | Detection device for detecting electric spindle chuck |
| CN106017254B (en) * | 2016-06-30 | 2018-08-17 | 广州市昊志机电股份有限公司 | A kind of electro spindle collet detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120523 |
|
| CX01 | Expiry of patent term |