CN104712729A - Automobile instrument panel transmission cam - Google Patents
Automobile instrument panel transmission cam Download PDFInfo
- Publication number
- CN104712729A CN104712729A CN201510060553.0A CN201510060553A CN104712729A CN 104712729 A CN104712729 A CN 104712729A CN 201510060553 A CN201510060553 A CN 201510060553A CN 104712729 A CN104712729 A CN 104712729A
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- CN
- China
- Prior art keywords
- instrument panel
- automobile instrument
- silicon carbide
- panel driving
- driving cam
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- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H53/00—Cams ; Non-rotary cams; or cam-followers, e.g. rollers for gearing mechanisms
- F16H53/08—Multi-track cams, e.g. for cycles consisting of several revolutions; Cam-followers specially adapted for such cams
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C47/00—Making alloys containing metallic or non-metallic fibres or filaments
- C22C47/02—Pretreatment of the fibres or filaments
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C49/00—Alloys containing metallic or non-metallic fibres or filaments
- C22C49/14—Alloys containing metallic or non-metallic fibres or filaments characterised by the fibres or filaments
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
Abstract
The invention discloses an automobile instrument panel transmission cam which comprises a rotating portion, a mounting portion and a connecting portion, wherein the two ends of the rotating portion extend outwards to form the mounting portion and the connecting portion. Multiple cam portions are arranged on the rotating portion in a protruding mode, cross sections are formed in the cam portions, and the cross sections of the cam portions are distributed alternately and parallel to each other. Counter bored holes are formed in the end portion of the mounting portion along the axis, wire outlets are formed in the peripheral surface of the mounting portion, and the wire outlets are communicated with the counter bored holes. The connecting portion is made of steel. The automobile instrument panel transmission cam is simple in structure, good in stability, and excellent in mechanism performance.
Description
Technical field
The invention belongs to technical field of automobile, relate to a kind of driving cam, particularly a kind of automobile instrument panel driving cam.
Background technique
Automobile instrument panel is the device of each system health of reflection vehicle.Common are fuel oil tutorial light, cleaning solution tutorial light, E-Gas tutorial light, front and back fog-lamp warning light.
Chinese patent CN203686057U discloses a kind of brake camshaft, comprise cam and axostylus axostyle, cam is fixedly connected with the front end of axostylus axostyle, axle center and cam rotating center are on same straight line, axostylus axostyle distal outer surface is provided with spline, the cross section of cam is the shape of S shape or S shape symmetry, and cam outer ledge radial direction offers an arc groove, and arc groove internal fixtion is provided with dynamic pickup.
Camshaft design on above-mentioned automobile instrument panel is reasonable not, needs to improve.
Summary of the invention
The object of the invention is to there are the problems referred to above for existing technology, propose that a kind of structure is simple, the automobile instrument panel driving cam of good stability.
Object of the present invention realizes by following technical proposal: a kind of automobile instrument panel driving cam, it is characterized in that, comprise rotation section, stretch out from two ends, rotation section the assembly department and joint that are formed, described rotation section is protruded and forms several cam part, described cam part all offers cross section, cross section in several cam part is alternately distributed and is parallel to each other, counterbore is offered along axis in the end of assembly department, the outer circumferential face of assembly department offers wire outlet hole, and described wire outlet hole is communicated to counterbore;
The material of joint is that steel is made and mainly the consisting of (wt.%) of steel: carbon C:0.05 ~ 0.09%; Silicon carbide: 20 ~ 30%; Manganese Mn:0.30 ~ 0.50%; Chromium Cr:1.35 ~ 1.65%; Aluminium Al:0.80 ~ 1.00%; Molybdenum Mo:0.15 ~ 0.25%; Carbon fiber short fiber (length is 10-20 micron) 0.8-1.5%; Surplus is Fe and inevitable impurity, and wherein silicon carbide is crystal whisker materials and micromeritics material (crystallite dimension is 0.1-2 micron) mixture.This programme regulates the mechanical property of joint by the silicon carbide with outstanding mechanical property regulating power by high hardness and high strength in steel, thus improve its distortion significantly, bending, the mechanical propertys such as wearing and tearing, coordinate the carbon fiber short fiber with longer size and silicon carbide whisker form line style microstructure in steel thus in structure of steel product system, form the line style grating system of length cooperation simultaneously, the island system simultaneously formed with micromeritics material, thus can to play with island structure (micromeritics material) by the line style level distribution structure (silicon carbide whisker and carbon fiber short fiber) in system and be connected carbon tissue in steel, crackle, crystal boundary and crystalline structure, carbide transition tissue can also be formed by organizing carburizing and dopant material surface carbonation simultaneously, thus greatly strengthen and improve Stress transmit and the stress decay ability of microstructure in steel, reduce defect sturcture to the impact of mechanical property, to reach the flexural property strengthening joint, wear-resisting property, polishing machine and delay the object of material aging.
In above-mentioned a kind of automobile instrument panel driving cam, the end opens of described counterbore has taper hole, and the outer circumferential face of described assembly department also offers screw section.
In above-mentioned a kind of automobile instrument panel driving cam, the tapering of described taper hole is 15 degree.
In above-mentioned a kind of automobile instrument panel driving cam, the end of described joint spherically.
In above-mentioned a kind of automobile instrument panel driving cam, described cam part is cylindrical, all offers chamfering at the two ends of cam part.
In above-mentioned a kind of automobile instrument panel driving cam, described cam part is provided with 5.
In above-mentioned a kind of automobile instrument panel driving cam, in silicon carbide, crystal whisker materials adding quantity accounts for the 5-15% of silicon carbide gross mass.By adding appropriate silicon carbide whisker in steel, (silicon carbide density is about 3.2g/cm to this programme
3, carbon fiber density is about 1.8g/cm
3), thus can when suitably adding silicon carbide whisker, the collaborative doping reducing silicon carbide hard material is formed on the impact of steel toughness with the micro-structure of silicon carbide whisker and micro-grain structure, hardness and the rigidity of material can be improved again simultaneously, avoid again filtering excessive short fibre structure (whisker) simultaneously and add the linear structure of impact formation to the Tandem mass of the in-house carbon tissue of steel, crackle, crystal boundary and crystalline structure and effect.
In above-mentioned a kind of automobile instrument panel driving cam, crystal whisker materials in silicon carbide, micromeritics material and carbon fiber short fiber are that mixture-aid agent once mixes in alcohol vapour atmosphere at normal temperatures with ethanol, to add by steel other again and form common ready-made alloy grain material secondary mixing, after mixing, obtain qualified joint after row melting strand and reprocessing again.Be that cosolvent is to crystal whisker materials with ethanol in this programme, micromeritics material and carbon fiber short fiber carry out mixed once premix, thus to make the dopant material of various form, quality stable homogeneous is uniformly mixed to form to the Homogeneous phase mixing that realizes of doping material, volume structure disperses consistent mixture, so that become the distribution of stable homogeneous in the steel material formed, also be convenient to rapidly and efficiently disperse with the alloy grain of other component of steel in secondary mixing simultaneously, thus be conducive to the mass stability and the homogeneity that improve material, avoid because quality is inconsistent and Organizational Structure dispersion is inconsistent and form defect, thus improve the mechanical property of equipment, wear resistance and working life.
In above-mentioned a kind of automobile instrument panel driving cam, during mixed once, the adding quantity of mixture-aid agent ethanol is the 20-30% of silicon carbide and carbon fiber short fiber total volume.This programme by adding the ethanol of silicon carbide and carbon fiber short fiber total volume 20-30% as mixture-aid agent in mixed once, both can ensure that inclusion was hybrid and can have good mobile performance---silicon carbide whisker, silicon carbide microcrystalline grain and carbon fiber short fiber can successfully flow in mixed process, promote to mix (adding quantity is excessive, easily layering occurs), surface contaminants and other high volatility impurities can be eliminated again in cleaning process simultaneously, know the impurity in gap or hole, be beneficial to inclusion and steel material and combination, reduce interfacial stress, the low molecule impurity existed in carbon fiber can also be leached simultaneously, thus form small leaching hole or hole, to strengthen carbon fiber with metallic material directly in conjunction with effect.
In above-mentioned a kind of automobile instrument panel driving cam, also supplement during secondary mixing and add mixture-aid agent to the 10-20% accounting for crystal whisker materials, micromeritics material, carbon fiber short fiber and alloy grain material total volume.This programme has added enough mixture-aid agents after utilizing mixed once, so when secondary mixes then without the need to adding larger amount, simultaneously when mixing, crystal whisker materials, micromeritics material, carbon fiber short fiber are mixed and infiltrate fully through mixed once, more easy in follow-up mixing, so only need when secondary mixes suitably to supplement, reduce the consumption to mixture-aid agent, can also reuse mixture-aid agent ethanol simultaneously, reduce raw-material processing cost.
Compared with prior art, the present invention has several advantage: arrange multiple cam part, can adjust and testing signal in longer scope, detects range large; The joint good sealing effect that taper hole can be assembly department is set, connects closely; The end of joint is arranged to spherical, connects smooth, rotates flexibly.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is complete section structural representation of the present invention.
In figure, 1, rotation section; 2, assembly department; 21, counterbore; 22, wire outlet hole; 23, taper hole; 3, joint; 31, sphere; 4, cam part; 41, cross section; 42, chamfering; 5, screw section; .
Embodiment
Be below specific embodiments of the invention and by reference to the accompanying drawings, technological scheme of the present invention is further described, but the present invention be not limited to these embodiments.
As depicted in figs. 1 and 2, this automobile instrument panel driving cam, comprise rotation section 1, stretch out from two ends, rotation section 1 assembly department 2 and joint 3 that are formed, the external diameter of assembly department 2 is greater than the external diameter of rotation section 1, the external diameter of rotation section 1 is greater than the external diameter of joint 3, rotation section 1 is protruded and forms several cam part 4, cam part 4 is cylindrical, each cam part 4 all offers cross section 41, cross section 41 in several cam part 4 is alternately distributed and is parallel to each other, chamfering 42 is all offered at the two ends of cam part 4, as preferably, the large small angle of chamfering 42 is consistent, also difference can be adjusted according to actual needs, as preferably, cam part 4 is provided with 5, wherein assembly department 2 extension is intersected to immediate cam part 4.
Arranging multiple cam part 4 can at multiple test and feedback point, and detect sensitive, range is large; Cross section 41 is set as point of contact, the angle turned over can be detected, easy to detect; Chamfering 42 is set, processing and easy for installation.
Counterbore 21 is offered along axis in the end of assembly department 2, the end opens of counterbore 21 has taper hole 23, the tapering of taper hole 23 is 15 degree, the outer circumferential face of assembly department 2 also offers screw section 5, the large footpath of screw section 5 is greater than the external diameter of assembly department 2, and the outer circumferential face of assembly department 2 offers wire outlet hole 22, and wire outlet hole 22 runs through assembly department 2 and perpendicular to the axis of assembly department 2, wire outlet hole 22 is communicated to counterbore 21, the end of joint 3 spherically 31.
Arrange taper hole 23, it is firm to install, good sealing effect; Arrange screw section 5 can be quickly installed on the parts of connection, easy for installation; Sphere 31 is arranged in the end of joint 3, smooth with other equipment connection, rotates flexibly; Counterbore 21 and wire outlet hole 22 are set, facilitate wire to pass from counterbore 21 and wire outlet hole 22, be connected on display device.
Joint 3 in technical solution of the present invention all has relatively high requirement in distortion performance, flexural property, polishing machine and stress aging quality etc., larger lifting can be obtained in application performance under in the application of reality after the adjustment of appropriateness, thus extend its working life and corrosivity etc.
All components melting all in advance in following examples in raw material except silicon carbide and carbon fiber short fiber also makes alloy grain.Crystal whisker materials in silicon carbide, micromeritics material and carbon fiber short fiber are that mixture-aid agent once mixes (adding quantity of ethanol is the 20-30% of silicon carbide and carbon fiber short fiber total volume) in alcohol vapour atmosphere at normal temperatures with ethanol, to add by steel other again and form common ready-made alloy grain material secondary mixing (supplement and add mixture-aid agent to the 10-20% accounting for crystal whisker materials, micromeritics material, carbon fiber short fiber and alloy grain material total volume), after mixing, obtain qualified joint after row melting strand and reprocessing again.
Embodiment 1
In the present embodiment, the main material of the joint 3 of steel consists of (wt.%) carbon C:0.05%; Silicon carbide: 23%; Manganese Mn:0.30%; Chromium Cr:1.35%; Aluminium Al:1.00%; Molybdenum Mo:0.15%; Carbon fiber short fiber (length is 10-20 micron) 1.5%; Surplus is Fe and inevitable impurity, and wherein silicon carbide is crystal whisker materials and micromeritics material (crystallite dimension is 0.1-2 micron) mixture, and crystal whisker materials adding quantity accounts for 5% of silicon carbide gross mass.During mixed once, the adding quantity of ethanol is 20% of silicon carbide and carbon fiber short fiber total volume; Supplement during secondary mixing and add mixture-aid agent to accounting for 20% of crystal whisker materials, micromeritics material, carbon fiber short fiber and alloy grain material total volume.
The surface hardness HRC34 of joint 3, tensile strength 1300MPa, yield strength 1020MPa in the present embodiment, elongation at break 10%; Ballistic work 80J, shaping rear sampling 1000, use 10000 hours continuously, surface abrasion is less than thickness 0.01, surperficial no marking distortion.
Embodiment 2
In the present embodiment, the main material of the joint 3 of steel consists of (wt.%) carbon C:0.06%; Silicon carbide: 25%; Manganese Mn:0.45%; Chromium Cr:1.40%; Aluminium Al:0.9%; Molybdenum Mo:0.20%; Carbon fiber short fiber (length is 10-20 micron) 1.3%; Surplus is Fe and inevitable impurity, and wherein silicon carbide is crystal whisker materials and micromeritics material (crystallite dimension is 0.1-2 micron) mixture, and crystal whisker materials adding quantity accounts for 10% of silicon carbide gross mass.During mixed once, the adding quantity of ethanol is 25% of silicon carbide and carbon fiber short fiber total volume; Supplement during secondary mixing and add mixture-aid agent to accounting for 17% of crystal whisker materials, micromeritics material, carbon fiber short fiber and alloy grain material total volume.
The surface hardness HRC34 of joint 3, tensile strength 1250MPa, yield strength 980MPa in the present embodiment, elongation at break 11%; Ballistic work 81J, shaping rear sampling 1000, use 10000 hours continuously, surface abrasion is less than thickness 0.01, surperficial no marking distortion.
Embodiment 3
In the present embodiment, the main material of the joint 3 of steel consists of (wt.%) carbon C:0.07%; Silicon carbide: 20%; Manganese Mn:0.35%; Chromium Cr:1.65%; Aluminium Al:0.8%; Molybdenum Mo:0.25%; Carbon fiber short fiber (length is 10-20 micron) 0.8%; Surplus is Fe and inevitable impurity, and wherein silicon carbide is crystal whisker materials and micromeritics material (crystallite dimension is 0.1-2 micron) mixture, and crystal whisker materials adding quantity accounts for 15% of silicon carbide gross mass.During mixed once, the adding quantity of ethanol is 30% of silicon carbide and carbon fiber short fiber total volume; Supplement during secondary mixing and add mixture-aid agent to accounting for 15% of crystal whisker materials, micromeritics material, carbon fiber short fiber and alloy grain material total volume.
The surface hardness HRC34 of joint 3, tensile strength 1330MPa, yield strength 1000MPa in the present embodiment, elongation at break 10%; Ballistic work 80J, shaping rear sampling 1000, use 10000 hours continuously, surface abrasion is less than thickness 0.01, surperficial no marking distortion.
Embodiment 4
In the present embodiment, the main material of the joint 3 of steel consists of (wt.%) carbon C:0.08%; Silicon carbide: 30%; Manganese Mn:0.40%; Chromium Cr:1.55%; Aluminium Al:0.85%; Molybdenum Mo:0.17%; Carbon fiber short fiber (length is 10-20 micron) 0.9%; Surplus is Fe and inevitable impurity, and wherein silicon carbide is crystal whisker materials and micromeritics material (crystallite dimension is 0.1-2 micron) mixture, and crystal whisker materials adding quantity accounts for 13% of silicon carbide gross mass.During mixed once, the adding quantity of ethanol is 22% of silicon carbide and carbon fiber short fiber total volume; Supplement during secondary mixing and add mixture-aid agent to accounting for 10% of crystal whisker materials, micromeritics material, carbon fiber short fiber and alloy grain material total volume.
The surface hardness HRC34 of joint 3, tensile strength 1100MPa, yield strength 900MPa in the present embodiment, elongation at break 13%; Ballistic work 75J, shaping rear sampling 1000, use 10000 hours continuously, surface abrasion is less than thickness 0.01, surperficial no marking distortion.
Embodiment 5
In the present embodiment, the main material of the joint 3 of steel consists of (wt.%) carbon C:0.09%; Silicon carbide: 28%; Manganese Mn:0.50%; Chromium Cr:1.5%; Aluminium Al:0.95%; Molybdenum Mo:0.23%; Carbon fiber short fiber (length is 10-20 micron) 1.0%; Surplus is Fe and inevitable impurity, and wherein silicon carbide is crystal whisker materials and micromeritics material (crystallite dimension is 0.1-2 micron) mixture, and crystal whisker materials adding quantity accounts for 8% of silicon carbide gross mass.During mixed once, the adding quantity of ethanol is 27% of silicon carbide and carbon fiber short fiber total volume; Supplement during secondary mixing and add mixture-aid agent to accounting for 13% of crystal whisker materials, micromeritics material, carbon fiber short fiber and alloy grain material total volume.
The surface hardness HRC34 of joint 3, tensile strength 1300MPa, yield strength 1010MPa in the present embodiment, elongation at break 9%; Ballistic work 82J, shaping rear sampling 1000, use 10000 hours continuously, surface abrasion is less than thickness 0.01, surperficial no marking distortion.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Claims (10)
1. an automobile instrument panel driving cam, it is characterized in that, comprise rotation section, stretch out from two ends, rotation section the assembly department and joint that are formed, described rotation section is protruded and forms several cam part, described cam part all offers cross section, and the cross section in several cam part is alternately distributed and is parallel to each other, and offers counterbore in the end of assembly department along axis, the outer circumferential face of assembly department offers wire outlet hole, and described wire outlet hole is communicated to counterbore;
The material of described joint is that steel is made and mainly the consisting of (wt.%) of steel: carbon C:0.05 ~ 0.09%; Silicon carbide: 20 ~ 30%; Manganese Mn:0.30 ~ 0.50%; Chromium Cr:1.35 ~ 1.65%; Aluminium Al:0.80 ~ 1.00%; Molybdenum Mo:0.15 ~ 0.25%; Carbon fiber short fiber 0.8-1.5%; Surplus is Fe and inevitable impurity, and wherein silicon carbide is crystal whisker materials and micromeritics material mixture.
2. a kind of automobile instrument panel driving cam according to claim 1, it is characterized in that, the end opens of described counterbore has taper hole, and the outer circumferential face of described assembly department also offers screw section.
3. a kind of automobile instrument panel driving cam according to claim 2, is characterized in that, the tapering of described taper hole is 15 degree.
4. a kind of automobile instrument panel driving cam according to claim 1,2 or 3, it is characterized in that, the end of described joint spherically.
5. a kind of automobile instrument panel driving cam according to claim 1,2 or 3, it is characterized in that, described cam part is cylindrical, all offers chamfering at the two ends of cam part.
6. a kind of automobile instrument panel driving cam according to claim 1,2 or 3, it is characterized in that, described cam part is provided with 5.
7. a kind of automobile instrument panel driving cam according to claim 5, it is characterized in that, described cam part is provided with 5.
8. a kind of automobile instrument panel driving cam according to claim 1, it is characterized in that, in described silicon carbide, crystal whisker materials adding quantity accounts for the 5-15% of silicon carbide gross mass.
9. a kind of automobile instrument panel driving cam according to claim 1 or 8, it is characterized in that, crystal whisker materials in described silicon carbide, micromeritics material and carbon fiber short fiber are that mixture-aid agent once mixes in alcohol vapour atmosphere at normal temperatures with ethanol, to add by steel other again and form common ready-made alloy grain material secondary mixing, after mixing, obtain qualified joint after row melting strand and reprocessing again.
10. a kind of automobile instrument panel driving cam according to claim 9, is characterized in that, during described mixed once, the adding quantity of mixture-aid agent ethanol is the 20-30% of silicon carbide and carbon fiber short fiber total volume.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510060553.0A CN104712729A (en) | 2015-02-05 | 2015-02-05 | Automobile instrument panel transmission cam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510060553.0A CN104712729A (en) | 2015-02-05 | 2015-02-05 | Automobile instrument panel transmission cam |
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| Publication Number | Publication Date |
|---|---|
| CN104712729A true CN104712729A (en) | 2015-06-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510060553.0A Pending CN104712729A (en) | 2015-02-05 | 2015-02-05 | Automobile instrument panel transmission cam |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101115929A (en) * | 2005-02-11 | 2008-01-30 | 佛吉亚汽车内部设备工业公司 | Device for automatically fixing an instrument panel on a motor vehicle body shell |
| CN201053464Y (en) * | 2007-07-16 | 2008-04-30 | 东风汽车有限公司 | Sectional type brake camshaft |
| CN201125758Y (en) * | 2007-12-18 | 2008-10-01 | 广西玉柴机器股份有限公司 | Cam axle structure with cylinder internal exhaust brake |
| CN201851555U (en) * | 2010-11-08 | 2011-06-01 | 杭州登峰离合器有限公司 | Braking S spline protruded-insertion type cam shaft |
| CN103013118A (en) * | 2011-09-24 | 2013-04-03 | 张国庆 | High toughness filling reinforcement poly phenylene sulfide (PPS)/poly-p-phenylene oxide (PPO) alloy and method for preparing same |
| CN103821904A (en) * | 2012-11-16 | 2014-05-28 | 泰州市科诚汽车零配件有限公司 | High performance motorcycle engine powder metallurgy gear cam and manufacturing method thereof |
| CN203686057U (en) * | 2013-12-30 | 2014-07-02 | 杭州余杭正达机械有限公司 | Brake camshaft |
-
2015
- 2015-02-05 CN CN201510060553.0A patent/CN104712729A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101115929A (en) * | 2005-02-11 | 2008-01-30 | 佛吉亚汽车内部设备工业公司 | Device for automatically fixing an instrument panel on a motor vehicle body shell |
| CN201053464Y (en) * | 2007-07-16 | 2008-04-30 | 东风汽车有限公司 | Sectional type brake camshaft |
| CN201125758Y (en) * | 2007-12-18 | 2008-10-01 | 广西玉柴机器股份有限公司 | Cam axle structure with cylinder internal exhaust brake |
| CN201851555U (en) * | 2010-11-08 | 2011-06-01 | 杭州登峰离合器有限公司 | Braking S spline protruded-insertion type cam shaft |
| CN103013118A (en) * | 2011-09-24 | 2013-04-03 | 张国庆 | High toughness filling reinforcement poly phenylene sulfide (PPS)/poly-p-phenylene oxide (PPO) alloy and method for preparing same |
| CN103821904A (en) * | 2012-11-16 | 2014-05-28 | 泰州市科诚汽车零配件有限公司 | High performance motorcycle engine powder metallurgy gear cam and manufacturing method thereof |
| CN203686057U (en) * | 2013-12-30 | 2014-07-02 | 杭州余杭正达机械有限公司 | Brake camshaft |
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Application publication date: 20150617 |
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