CN103397965A - Engine oil atomizer installation structure - Google Patents
Engine oil atomizer installation structure Download PDFInfo
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- CN103397965A CN103397965A CN2013102786851A CN201310278685A CN103397965A CN 103397965 A CN103397965 A CN 103397965A CN 2013102786851 A CN2013102786851 A CN 2013102786851A CN 201310278685 A CN201310278685 A CN 201310278685A CN 103397965 A CN103397965 A CN 103397965A
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Abstract
The invention discloses an engine oil atomizer installation structure which comprises a high pressure oil tube nut and a sealing ring. A protruding rib is arranged on the outer surface of the high pressure oil tube nut. The outer surface below the protruding rib is a cylindrical face. A taper through hole and an internally-threaded step hole are formed in the center of the high pressure oil tube nut. The diameter of the small end of the taper through hole is matched with the outer diameter of a high pressure oil tube, and inner threads of the small end of the taper through hole are matched with outer threads of the connecting end of an oil atomizer. The sealing ring is in a cylindrical boss shape. A groove provided with an installation steel plate is formed in the end face of the large end of the sealing ring along the circumference direction. A large cylindrical hole and a taper hole are formed in the center of the end face of the large end of the sealing ring. The diameter of the large cylindrical hole is the same as the diameter of the cylindrical face of the lower portion of the high pressure oil tube nut. The diameter of the large end of the taper hole is the same as the diameter of the large cylindrical hole. The sealing ring is arranged on the cylindrical face of the high pressure oil tube nut in a sleeved mode. The outer end face of the steel plate is compressed with the lower end face of the protruding rib of the high press oil tube nut. The step end face of the sealing ring is compressed with the installation plane of an air cylinder cover. The engine oil atomizer installation structure is low in machining requirement, and sealing of the end face and the radial direction provides a good working environment for the oil atomizer.
Description
Technical field
The present invention relates to engine art, particularly a kind of oil sprayer mounting mechanism of motor.
Background technique
Because its intake and exhaust efficiency is high, sufficient combustion, powerful, four-valve engine is widely used in the power of various device.Need to be arranged in the central position of firing chamber due to the oil sprayer of motor, and in existing motor, four valves all are arranged in the surrounding of oil sprayer, and this just makes oil sprayer 6 must be arranged in the inside of valve mechanism cover and perpendicular to the bottom surface (as shown in Figure 1) of cylinder head 9.Also need to process a high-pressure connecting pipe hole that required precision is higher on cylinder head 9, be used for installation high-voltage connecting tube 7, high-pressure oil pipe 7 is connected with the filler opening of oil sprayer 6, and with high-pressure connecting pipe nut 8, locks, oil sprayer 6 is conical surface seal with the interface of high-pressure connecting pipe 7.But the required precision of high pressure oil pore has improved the cost of processing, and the improper leakage of oil that very easily causes the sealing position of installation step simultaneously, improved the requirement of installing virtually.
Summary of the invention
The present invention is in order to overcome defect in above-mentioned prior art,, by a kind of oil sprayer mounting mechanism of motor, make the installation of high-pressure oil pipe simple, and sealing is good.
For achieving the above object, the invention provides a kind of oil sprayer mounting mechanism of motor, comprising: the high-pressure oil pipe nut, along the circumferential direction be provided with fin on its outer surface, the lower end surface of fin is plane, the following outer surface of fin is cylndrical surface; The center of high-pressure oil pipe nut from top to bottom is provided with cylindrical step hole, conical through-hole and internal thread step hole successively, the diameter of the diameter in cylindrical step hole and conical through-hole small end and the external diameter of high-pressure oil pipe are adaptive, and the outside thread of internal thread and oil sprayer connecting end is adaptive; Seal ring, its whole cylindrical boss-shaped, along the circumferential direction be provided with convex rib structure on the step end face of seal ring, along the circumferential direction be provided with the groove that steel plate is installed on the end face of the large end of seal ring; The center of seal ring is provided with the great circle cylindrical hole successively by large the end to small end, taper hole, small cylindrical hole, the diameter of great circle cylindrical hole is identical with the diameter of high-pressure oil pipe nut lower cylindrical face, the diameter of the large end of taper hole is identical with the diameter of great circle cylindrical hole, and the diameter of taper hole small end is identical with the diameter in small cylindrical hole; Valve mechanism cover is provided with for the step hole of installing, high-pressure oil pipe passes described step hole, ring set is on the cylndrical surface of high-pressure oil pipe nut, and high-pressure oil pipe passes from the conical through-hole of high-pressure oil pipe nut, the internal thread of high-pressure oil pipe nut is connected with the outside thread of oil sprayer connecting end, the lower end surface of the fin of the exterior edge face of steel plate and high-pressure oil pipe nut compresses, and the mounting plane of the step end face of seal ring and valve mechanism cover compresses.
The mounting mechanism that is comprised of with seal ring the high-pressure oil pipe nut is connected with oil sprayer by screw thread, and is simple in structure, but end face and sealing have radially effectively guaranteed the oil-feed of oil sprayer, have ensured the safe handling of motor.
In technique scheme, the small end of the seal ring outside along the circumferential direction is provided with the groove of mounting spring.Using as mounting mechanism of spring provides better radial seal effect.
In technique scheme, on the high-pressure oil pipe nut, the above outer surface of fin is the hexagonal women's head-ornaments.The hexagon head outer surface is convenient to rotate the high-pressure oil pipe nut.
In technique scheme, seal ring is rubber material.The plasticity of rubber material provides basic sealability for mounting mechanism.
In technique scheme, the lower end of high-pressure oil pipe comprises the first arc surface and the second arc surface, and the large end of the conical through-hole of the first arc surface and high-pressure oil pipe nut is adaptive.The adaptive of the conical through-hole of the first arc surface and high-pressure oil pipe nut makes the high-pressure oil pipe installation stable, is not prone to leakage of oil.
In technique scheme, the connection end of oil sprayer is provided with the circular arc part adaptive with the second arc surface of high-pressure oil pipe.The identical high pressure oil that makes of oil sprayer circular arc part and the second arc surface is difficult for seepage from here, has guaranteed sealing.
Description of drawings
Fig. 1 is the oil sprayer mounting structure schematic diagram of four-valve engine in prior art of the present invention;
Fig. 2 is the mounting mechanism sectional view of engine fuel injector of the present invention;
Fig. 3 is the enlarged view of b in Fig. 2;
Fig. 4 is the installation position structural representation of oil sprayer on valve mechanism cover of the present invention;
Fig. 5 is the scheme of installation of high-pressure oil pipe of the present invention and high-pressure oil pipe nut;
Fig. 6 is the structural representation of seal ring of the present invention;
Fig. 7 is the structural representation of oil sprayer of the present invention;
Mark the following drawings mark thereon by reference to the accompanying drawings:
The 1-valve mechanism cover, 2-high-pressure oil pipe, 3-oil sprayer, 4-high-pressure oil pipe nut, the 5-seal ring, 51-spring, 52-body, 53-steel plate, the 6-oil sprayer, 7-high-pressure connecting pipe, 8-high-pressure connecting pipe nut, 9-cylinder head, A-the first plane, C-hexagonal women's head-ornaments, D-the second plane, E-first conical surface, the F-cylndrical surface, G-the first arc surface, H-the second arc surface, J-fuel gallery, K-second conical surface, L-sealing surface, M-pressure-bearing surface, N-three-arc face.
Embodiment
, below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail, but is to be understood that protection scope of the present invention is not subjected to the restriction of embodiment.
As shown in Figure 2, high-pressure oil pipe 2 of the present invention passes valve mechanism cover 1 and is connected with oil sprayer 3.As shown in Fig. 3,4, valve mechanism cover 1 is provided with step hole, and the A face is the first plane, and high-pressure oil pipe nut 4 is provided with the through hole that passes for high-pressure oil pipe 2, and the end face of seal ring 5 contacts sealing with the A face.
As shown in Figure 5, the center of high-pressure oil pipe 2 is provided with fuel gallery J, and its lower end is circular-arc, forms the first arc surface G face and the second arc surface H face.Along the circumferential direction be provided with fin on the outer surface of high-pressure oil pipe nut 4, the lower end surface D face of fin is the second plane, and the above outer surface C of fin is the hexagonal women's head-ornaments, is convenient to rotate high-pressure oil pipe nut 4; The following outer surface F of fin is cylndrical surface.The center of high-pressure oil pipe nut 4 from top to bottom is provided with cylindrical step hole, conical through-hole and internal thread step hole successively, the diameter of the diameter in cylindrical step hole and conical through-hole small end and the external diameter of high-pressure oil pipe are adaptive, the internal surface of conical through-hole is the second conical surface E face, adaptive with the first arc surface G face of high-pressure oil pipe 2 lower ends, the outside thread of internal thread and oil sprayer connecting end is adaptive.
As shown in Figure 6, the body 52 of seal ring 5 is rubber material, whole cylindrical boss-shaped, along the circumferential direction be provided with the groove of mounting spring 51 on the small end outer surface of seal ring 5, along the circumferential direction be provided with convex rib structure on the step end face of seal ring 5, form sealing surface L, along the circumferential direction be provided with the groove that steel plate 53 is installed on the large end end face of seal ring 5, the outside end face of steel plate 53 forms pressure-bearing surface M.The arrogant end in the center of seal ring 5 to small end is provided with the great circle cylindrical hole successively, taper hole, small cylindrical hole, the diameter of great circle cylindrical hole is identical with the diameter of the cylndrical surface F face of high-pressure oil pipe nut, the diameter of the large end of taper hole is identical with the diameter of great circle cylindrical hole, the internal surface of taper hole forms the second conical surface K face, and the diameter of taper hole small end is identical with the diameter in small cylindrical hole
As shown in Figure 3, seal ring 5 is sleeved on the F face outside of high-pressure oil pipe nut 4, but K face diameter is less than F face diameter, forms interference fit, and holds the F face of high-pressure oil pipe nut 4 tightly by spring 51, forms dual radial seal.
As shown in Figure 7, the connecting end of oil sprayer 3 outside is worm structure, and the center of oil sprayer 3 connecting ends is provided with circular arc part, forms three-arc face N face, and is adaptive with the second arc surface H face of high-pressure oil pipe 2 lower ends.
During installation, first high-pressure oil pipe 2 is passed from the step hole on valve mechanism cover 1, lower end is stayed the inside of valve mechanism cover 1; Then seal ring 5 is sleeved on the F face of high-pressure oil pipe nut 4, and high-pressure oil pipe 2 is passed the conical through-hole of high-pressure oil pipe nut 4, the screw thread of high-pressure oil pipe nut 4 lower ends is contacted with the screw thread of oil sprayer 3 connecting ends; The C face of rotation high-pressure oil pipe nut 4, make high-pressure oil pipe nut 4 move down along high-pressure oil pipe 2, and is identical when the G face of the E of high-pressure oil pipe nut 4 face and high-pressure oil pipe 2, when the N face of the H face of high-pressure oil pipe 2 and oil sprayer coincide simultaneously, stops the rotation.Be contained in the M face of the steel plate on seal ring 5 and the D face of high-pressure oil pipe nut 4 this moment and compress, and the A face of the L face of seal ring 4 and valve mechanism cover 1 compression, end face seal formed.
The oil sprayer mounting mechanism of motor of the present invention is simple in structure, and processing request is low, and end face and double seal radially simultaneously provides good working environment for oil sprayer.
Above disclosed be only a specific embodiment of the present invention, still, the present invention is not limited thereto, the changes that any person skilled in the art can think of all should fall into protection scope of the present invention.
Claims (6)
1. the oil sprayer mounting mechanism of a motor, is characterized in that, comprising:
The high-pressure oil pipe nut, along the circumferential direction be provided with fin on its outer surface, the lower end surface of described fin is plane, and the following outer surface of described fin is cylndrical surface; The center of described high-pressure oil pipe nut from top to bottom is provided with cylindrical step hole, conical through-hole and internal thread step hole successively, the external diameter of the diameter in described cylindrical step hole and the diameter of described conical through-hole small end and high-pressure oil pipe is adaptive, and the outside thread of described internal thread and oil sprayer connecting end is adaptive;
Seal ring, its whole cylindrical boss-shaped, along the circumferential direction be provided with convex rib structure on the step end face of described seal ring, along the circumferential direction be provided with the groove that steel plate is installed on the end face of the large end of described seal ring; The center of described seal ring is provided with the great circle cylindrical hole successively by large the end to small end, taper hole, small cylindrical hole, the diameter of described great circle cylindrical hole is identical with the diameter of described high-pressure oil pipe nut lower cylindrical face, the diameter of the large end of described taper hole is identical with the diameter of described great circle cylindrical hole, and the diameter of described taper hole small end is identical with the diameter in described small cylindrical hole;
Valve mechanism cover is provided with for the step hole of installing, described high-pressure oil pipe passes described step hole, described ring set is on the described cylndrical surface of described high-pressure oil pipe nut, and described high-pressure oil pipe passes from the conical through-hole of described high-pressure oil pipe nut, the internal thread of described high-pressure oil pipe nut is connected with the outside thread of described oil sprayer connecting end, the lower end surface of the described fin of the exterior edge face of described steel plate and described high-pressure oil pipe nut compresses, and the mounting plane of the step end face of described seal ring and described valve mechanism cover compresses.
2. the oil sprayer mounting mechanism of motor according to claim 1, is characterized in that, the small end outside of described seal ring along the circumferential direction is provided with the groove of mounting spring.
3. the oil sprayer mounting mechanism of motor according to claim 1 and 2, is characterized in that, on described high-pressure oil pipe nut, the above outer surface of fin is the hexagonal women's head-ornaments.
4. the oil sprayer mounting mechanism of motor according to claim 1, is characterized in that, described seal ring is rubber material.
5. the oil sprayer mounting mechanism of motor according to claim 1, is characterized in that, the lower end of described high-pressure oil pipe comprises the first arc surface and the second arc surface, and the large end of the described conical through-hole of described the first arc surface and described high-pressure oil pipe nut is adaptive.
6. the oil sprayer mounting mechanism of motor according to claim 5, is characterized in that, the connection end of described oil sprayer is provided with the circular arc part adaptive with the second arc surface of described high-pressure oil pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102786851A CN103397965A (en) | 2013-07-04 | 2013-07-04 | Engine oil atomizer installation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102786851A CN103397965A (en) | 2013-07-04 | 2013-07-04 | Engine oil atomizer installation structure |
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| CN103397965A true CN103397965A (en) | 2013-11-20 |
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| CN2013102786851A Pending CN103397965A (en) | 2013-07-04 | 2013-07-04 | Engine oil atomizer installation structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106141665A (en) * | 2016-07-28 | 2016-11-23 | 江苏科技大学 | Cylinder cover for diesel engine fuel injector and oil spout adapter automatic assembling machine and assembly method |
| CN106523230A (en) * | 2016-11-17 | 2017-03-22 | 安徽江淮汽车集团股份有限公司 | Auxiliary sealing structure for oil sprayer pressing block bolt |
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| US20090241650A1 (en) * | 2008-03-28 | 2009-10-01 | Denso Corporation | Fuel pressure sensor/sensor mount assembly, fuel injection apparatus, and pressure sensing apparatus |
| CN202348504U (en) * | 2011-11-18 | 2012-07-25 | 广西玉柴机器股份有限公司 | Double-layer high-pressure oil pipe connector |
| CN202532055U (en) * | 2012-05-03 | 2012-11-14 | 东风汽车有限公司 | Spherical pier head structure of high-pressure oil pipe |
| CN202833533U (en) * | 2012-07-30 | 2013-03-27 | 广西玉柴机器股份有限公司 | Pipe connection nut of high pressure fuel pipe of fuel injector and sealing structure comprising pipe connection nut |
| CN202883195U (en) * | 2012-10-22 | 2013-04-17 | 玉环县坎门机械厂 | Connecting structure of high-pressure oil pipe |
| CN203362368U (en) * | 2013-07-04 | 2013-12-25 | 广西玉柴机器股份有限公司 | Installation mechanism for fuel injector of engine |
-
2013
- 2013-07-04 CN CN2013102786851A patent/CN103397965A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090241650A1 (en) * | 2008-03-28 | 2009-10-01 | Denso Corporation | Fuel pressure sensor/sensor mount assembly, fuel injection apparatus, and pressure sensing apparatus |
| CN202348504U (en) * | 2011-11-18 | 2012-07-25 | 广西玉柴机器股份有限公司 | Double-layer high-pressure oil pipe connector |
| CN202532055U (en) * | 2012-05-03 | 2012-11-14 | 东风汽车有限公司 | Spherical pier head structure of high-pressure oil pipe |
| CN202833533U (en) * | 2012-07-30 | 2013-03-27 | 广西玉柴机器股份有限公司 | Pipe connection nut of high pressure fuel pipe of fuel injector and sealing structure comprising pipe connection nut |
| CN202883195U (en) * | 2012-10-22 | 2013-04-17 | 玉环县坎门机械厂 | Connecting structure of high-pressure oil pipe |
| CN203362368U (en) * | 2013-07-04 | 2013-12-25 | 广西玉柴机器股份有限公司 | Installation mechanism for fuel injector of engine |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106141665A (en) * | 2016-07-28 | 2016-11-23 | 江苏科技大学 | Cylinder cover for diesel engine fuel injector and oil spout adapter automatic assembling machine and assembly method |
| CN106141665B (en) * | 2016-07-28 | 2018-09-04 | 江苏科技大学 | The automatic assembling machine and assembly method that cylinder cover for diesel engine fuel injector and oil spout are taken over |
| CN106523230A (en) * | 2016-11-17 | 2017-03-22 | 安徽江淮汽车集团股份有限公司 | Auxiliary sealing structure for oil sprayer pressing block bolt |
| CN106523230B (en) * | 2016-11-17 | 2018-12-25 | 安徽江淮汽车集团股份有限公司 | A kind of auxiliary sealing structure of fuel injector briquetting bolt |
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Application publication date: 20131120 |