CN203298691U - Mold for measuring distance of shaft centers of camshaft and compression pump - Google Patents
Mold for measuring distance of shaft centers of camshaft and compression pump Download PDFInfo
- Publication number
- CN203298691U CN203298691U CN2013202239253U CN201320223925U CN203298691U CN 203298691 U CN203298691 U CN 203298691U CN 2013202239253 U CN2013202239253 U CN 2013202239253U CN 201320223925 U CN201320223925 U CN 201320223925U CN 203298691 U CN203298691 U CN 203298691U
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- mold
- shaft
- camshaft
- compression pump
- distance
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Abstract
The utility model discloses a mold for measuring a distance of shaft centers of a camshaft and a compression pump. The mold is composed of two parts which are a flange mold and a positioning mold; a side of the flange mold is provided with a positioning small boss and a groove, the other side is a detecting shaft, and through holes are drilled in the periphery of the mold; and the shape of the positioning mold is composed of two shaft segments which are a hexagonal shaft and a circular shaft, and the hexagonal shaft segment is provided with screwed holes. Sizes and positions of the positioning small boss and the groove are arranged according to a structure of the camshaft gear, and the screwed holes in the hexagonal shaft segment of the positioning mold are used for connecting a gear shaft of the compression pump. When measurement is carried out, a user only needs to assemble the flange mold and the camshaft gear and assemble the positioning mold and the gear shaft of the compression pump, and measure the distance between axle centers of circle shafts of the two molds. The mold for measuring the distance of the shaft centers of the camshaft and the compression pump is easy to manufacture and easy to assemble and disassemble, to enable measurement of the distance of the shaft centers of the camshaft and the compression pump to be more convenient. And a center distance can be calibrated timely when measurement and adjustment are carried out, so as to raise assembling precision and efficiency.
Description
Technical field
The utility model belongs to the engine specific purpose tool, be specifically related to a kind of for detection of adjust engine cam and compression pump distance of shaft centers from Special mould.
Background technology
The vibration noise that sends during engine operation make us very disagreeable but helpless, especially the noise that produces of diesel motor accounts for more than 55% of automobile overall noise.Mechanical noise is the important component part of engine noise.Compression pump is as the critical piece of car brakeing unit, and during work, air pump piston periodically produces pressure, thereby the duty ratio that the compression pump gear is born is heavier, so the noise that gear when engagement produces just comparatively highlights.
For reducing when the compression pump gear meshes the mechanical noise that produces, adding the common normal of gear wheel or adopting X-gear is a kind of way preferably, but when using " galvanized wire method " detection of gear sideshake, relation due to galvanized wire hardness and thickness own, can exert an influence to camshaft and the pump shaft diaxon heart distance of calming the anger, lead and make detection inaccurate.In addition, in the engine production assembling process, the distance in camshaft and compression pump axle center also is inconvenient to detect.For addressing this problem, the utility model has designed and produced a pair of detection mold, can directly to diaxon centre distance size, measure, thereby has facilitated the adjustment test of centre distance and assembled, and can improve measuring accuracy and efficiency.
Summary of the invention
The purpose of this utility model is, proposes a kind of mold that detects and adjust for camshaft and compression pump distance of shaft centers, reaches the purpose that improves assembly precision and reduce engine noise.
Below in conjunction with accompanying drawing, the technical solution of the utility model is described:
Camshaft and compression pump distance of shaft centers are measured mold, and its mold is comprised of flange mold and positioning clamping fixture two parts, and the flange mold simultaneously is provided with location small boss and groove; Another side is for detecting axle, and flange mold surrounding is drilled with 5 through holes.The positioning clamping fixture profile consists of six square shafts and two shaft parts of circular shaft, is provided with threaded hole in six square shaft sections.
Its know-why is: the size positions of location small boss and groove is to set according to the cam shaft gear structure, and the threaded hole in positioning clamping fixture six square shaft sections, for the gear shaft that connects compression pump.When camshaft and compression pump distance of shaft centers are measured, only need flange mold and cam shaft gear are assembled, the gear shaft of positioning clamping fixture and compression pump is assembled, measure the distance between flange mold detection axle axle center and positioning clamping fixture circular shaft axle center, be camshaft and the centre distance of the pump shaft of calming the anger.
Characteristics of the present utility model are: internal model making is simple, and accuracy of detection is high, can avoid repetitive operation, has improved work efficiency.In convenient detection camshaft and compression pump distance of shaft centers, make test or the assembling of adjusting centre distance also more accurate and convenient.
Description of drawings
Fig. 1 is the cut-open view of the utility model flange positioner structure.
Fig. 2 is the stereoscopic figure of the utility model positioning clamping fixture structure
Fig. 3 is the utility model embodiment assembling and instrumentation plan.
Embodiment
Below in conjunction with scheming and by embodiment, structure of the present utility model being further described.Need to prove that the present embodiment is narrative, but not determinate, with this embodiment, do not limit protection domain of the present utility model.
Camshaft and compression pump distance of shaft centers are measured mold and are comprised of flange mold 1 and positioning clamping fixture 6 two parts.The flange mold simultaneously is provided with location small boss 2 and groove 3; Another side is for detecting axle 4, and flange mold surrounding is drilled with 5 through hole 5(such as Fig. 1).Positioning clamping fixture 6 profiles consist of six square shafts and two shaft parts of circular shaft, are provided with threaded hole 7(such as Fig. 2 in six square shaft sections).The circular shaft of positioning clamping fixture is also used axle for measuring.
The location small boss external diameter of flange mold is 50mm, and thickness is 3mm; The groove internal diameter is 44mm, groove depth 18mm; Detect shaft diameter 25mm, length is 40mm; Through-hole diameter 9mm; Positioning clamping fixture six square shaft section internal thread holes are of a size of M16 * 22mm; Circular shaft section diameter is also 25mm, and length is 40mm.
Flange mold end face location small boss and air pump transmission gear fit, and use bolted.Because when design located the center that can guarantee the flange mold and the center superposition of cam shaft gear 8 by small boss.The design of groove is to avoid causing mold center deflection in fastening or testing process, affects measurement result.Positioning clamping fixture is to process with one " six square stocks ", six side's section internal threads is directly tightened to air pump gear axle 9 get final product (as Fig. 3).
, for convenient and accurately, as long as measure the flange mold, detect the outer end of axle and positioning clamping fixture circular shaft during measurement, the diameter that then deducts an axle gets final product (as Fig. 3: centre distance L=actual measurement numerical value L-25).
Claims (2)
1. camshaft and compression pump distance of shaft centers are measured mold, it is characterized in that described mold is comprised of flange mold (1) and positioning clamping fixture (6) two parts, and the flange mold simultaneously is provided with location small boss (2) and groove (3); Another side is for detecting axle (4), and flange mold surrounding is drilled with 5 through holes (5); Positioning clamping fixture (6) profile consists of six square shafts and two shaft parts of circular shaft, is provided with threaded hole (7) in six square shaft sections.
2. measure mold according to camshaft claimed in claim 1 and compression pump distance of shaft centers, it is characterized in that location small boss (2) external diameter of described flange mold is 50mm, thickness is 3mm; Described groove (3) internal diameter is 44mm, groove depth 18mm; Described detection axle (4) diameter 25mm, length is 40mm; Described through hole (5) diameter 9mm; Described positioning clamping fixture six square shaft section internal thread holes (7) are of a size of M16 * 22mm, and circular shaft section diameter is also 25mm, and length is 40mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202239253U CN203298691U (en) | 2013-04-27 | 2013-04-27 | Mold for measuring distance of shaft centers of camshaft and compression pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202239253U CN203298691U (en) | 2013-04-27 | 2013-04-27 | Mold for measuring distance of shaft centers of camshaft and compression pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203298691U true CN203298691U (en) | 2013-11-20 |
Family
ID=49574696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202239253U Expired - Lifetime CN203298691U (en) | 2013-04-27 | 2013-04-27 | Mold for measuring distance of shaft centers of camshaft and compression pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203298691U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104197800B (en) * | 2014-08-29 | 2017-11-17 | 力帆实业(集团)股份有限公司 | A kind of master and slave moving teeth centre-to-centre spacing detection means of CG engine timings |
| CN108297006A (en) * | 2018-03-28 | 2018-07-20 | 上海磁浮交通发展有限公司 | Headstock skirtboard installs positioning tool and its method |
-
2013
- 2013-04-27 CN CN2013202239253U patent/CN203298691U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104197800B (en) * | 2014-08-29 | 2017-11-17 | 力帆实业(集团)股份有限公司 | A kind of master and slave moving teeth centre-to-centre spacing detection means of CG engine timings |
| CN108297006A (en) * | 2018-03-28 | 2018-07-20 | 上海磁浮交通发展有限公司 | Headstock skirtboard installs positioning tool and its method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Mold for measuring distance of shaft centers of camshaft and compression pump Effective date of registration: 20190612 Granted publication date: 20131120 Pledgee: LINGYUAN IRON & STEEL GROUP CO.,LTD. Pledgor: DONGFENG CHAOYANG DIESEL Co.,Ltd. Registration number: 2019210000021 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131120 |
|
| CX01 | Expiry of patent term |