CN205013179U - Diesel engine oil injector hold -down device - Google Patents
Diesel engine oil injector hold -down device Download PDFInfo
- Publication number
- CN205013179U CN205013179U CN201520673335.XU CN201520673335U CN205013179U CN 205013179 U CN205013179 U CN 205013179U CN 201520673335 U CN201520673335 U CN 201520673335U CN 205013179 U CN205013179 U CN 205013179U
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- sprayer
- bolt
- oil sprayer
- pressing plate
- clamp plate
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Abstract
The utility model discloses a diesel engine oil injector hold -down device, its structure is: the front -end design of clamp plate is the U -shaped, and the clamp plate is two facades that are parallel to each other with sprayer binding site, and open at the center of clamp plate has the bolt hole. The top of bolt hole is equipped with spherical face recess, and the sprayer bolt also is equipped with spherical face boss with the position of the spherical face groove phase contact of clamp plate, and two spherical facial featuress are matchd. The facade for being parallel to each other is all processed to the both sides face of cylinder sprayer, and the width of facade is less than or equal to the interval of two facades of clamp plate, and with two facades reeves of clamp plate, very little interval can guarantee like this that the vertical angle of sprayer is unlikely to the run -off the straight with the firm chucking of cylinder sprayer. The sprayer bolt passes the clamp plate, fixes the sprayer on the cylinder head. Close the fastening mode of present packing ring and sprayer bolt separation as an organic whole, the pressing plate bolt hole is increaseed with sprayer bolt area of contact, makes its fastening power obtain the reinforcing.
Description
Technical field
The utility model belongs to mechanical parts, is specifically related to a kind of bolt for oil spraying device of diesel oil engine.
Background technique
Oil sprayer is crucial parts in diesel engine, and its effect is the fuel oil to burning chamber of diesel engine inject high pressure.The combustion principle of diesel engine is by after air compressing to certain pressure, and diesel oil improves pressure through high pressure oil pump and is atomized, and then sprays into cylinder special position, with air mixed combustion with certain pressure, spraying fineness and spray cone angle.In the parts of motor are installed, the installation of oil sprayer is fixed extremely important, because diesel engine is in operation, vibration is comparatively large, if the fixing of oil sprayer causes loosening or the position changing of the relative positions because of Long-term Vibration, will cause that engine combustion is incomplete, engine performance obviously descends degradation fault.The connection of current oil sprayer and cylinder head generally compresses a spherical washer with pressing plate, then uses oil sprayer bolt tightening.The defect of this means of fixation is, along with the increase of automobile service life, the vibration that motor long-time running causes, can produce not easily be found a little and loosen between pressing plate and packing ring.But check affect the factor of engine performance time, the only maintenance man that enriches very much of experience, if otherwise this loosening carefully do not check and very difficultly to be discovered.The oil sprayer fixing bolt that the utility model proposes can eliminate above-mentioned hidden danger.
Summary of the invention
The purpose of this utility model is, provides the diesel engine oil injector hold-down device that a kind of packing ring and bolt are integrated.
The technical pattern that the utility model adopts is, diesel engine oil injector hold-down device comprises pressing plate, oil sprayer bolt and cylindrical body oil sprayer.The Front-end Design of pressing plate is U-shaped, and pressing plate and oil sprayer binding site are two facades be parallel to each other, and the center of pressing plate has bolt hole, and the top of bolt hole is provided with spherical groove.The position that oil sprayer bolt contacts with pressing plate spherical groove is also provided with spherical boss, and the top of oil sprayer bolt is hexagon in plane.The spherical groove in follower bolt hole and the spherical of oil sprayer bolt boss match.The bi-side of cylindrical body oil sprayer are all processed as the facade be parallel to each other, and two ends, pressing plate bottom surface left and right are respectively arc cylinder, and oil sprayer, through pressing plate, is fixed on cylinder head by oil sprayer bolt.
This device is that oil sprayer is fixed by employing pressing plate, and its innovation is: pressing plate intermediate portion processes a bolt hole with spherical groove.Match with it, oil sprayer bolt shank also processes a boss with spherical.Bolt is well contacted by (pressing plate and oil sprayer bolt) two sphericals through pressing plate, is securely fastened on the cylinder head of diesel engine by oil sprayer.
Feature of the present utility model and beneficial effect are integrated at the fastening means that current packing ring is separated with oil sprayer bolt, and follower bolt hole and oil sprayer threaded bolt contacts area strengthen, and its fastening force is enhanced.Oil sprayer upper end can firmly be blocked by pressing plate two facade, ensure that oil sprayer uniform force and good sealing effect.Packing ring and bolt unite two into one, not only easy for installation, and provide cost savings.
Accompanying drawing explanation
Shown accompanying drawing is the diagrammatic perspective view of the utility model Principles and methods.
Embodiment
Structure of the present utility model to be further described by specific embodiment below in conjunction with accompanying drawing.
Diesel engine oil injector hold-down device, comprise pressing plate, oil sprayer bolt and cylindrical body oil sprayer, its structure is: the Front-end Design of pressing plate 1 is U-shaped, and pressing plate and oil sprayer binding site are two the facade 1-1 be parallel to each other, and the center of pressing plate has bolt hole.The top of bolt hole is provided with spherical groove 1-2, and the position that oil sprayer bolt 2 contacts with pressing plate spherical groove is also provided with spherical boss 2-1.The top of oil sprayer bolt is hexagon 1-3 in plane, and the bottom of oil sprayer bolt is spherical.The spherical groove in follower bolt hole and the spherical of oil sprayer bolt boss match.The bi-side of cylindrical body oil sprayer 3 are all processed as the facade be parallel to each other, and the width of cylindrical body oil sprayer two facades is less than or equal to the spacing of pressing plate two facades.Two ends, pressing plate bottom surface left and right are respectively arc cylinder, and oil sprayer, through pressing plate, is fixed on cylinder head by oil sprayer bolt.
Two ends, pressing plate bottom surface left and right arc column radius surface is 30mm, the surface of contact of the surface of contact of pressing plate and oil sprayer end and pressing plate and cylinder head end is all designed to cylndrical surface, this design pressing plate cylndrical surface and surface of contact when compressing form linear contact lay (being straight line when cylndrical surface and plane contact), to ensure oil sprayer uniform force and good sealing effect.
The top of oil sprayer bolt is set to hexagon in plane, can be that screwing force is enhanced when fastening.The bi-side of cylindrical body oil sprayer are processed as parallel facade, and injected by two of pressing plate facades, cylindrical body oil sprayer can firmly clamp by very little spacing, can ensure that the vertical angle of oil sprayer is unlikely to run-off the straight like this.Oil sprayer can not be made to produce loosening of any direction, thus oil sprayer is reached to the object of firmly installing.
Claims (3)
1. diesel engine oil injector hold-down device, comprise pressing plate, oil sprayer bolt and cylindrical body oil sprayer, it is characterized in that: the Front-end Design of pressing plate (1) is U-shaped, pressing plate and oil sprayer binding site are two facades (1-1) be parallel to each other, the center of pressing plate has bolt hole, the top of bolt hole is provided with spherical groove (1-2), the position that oil sprayer bolt (2) contacts with pressing plate spherical groove is also provided with spherical boss (2-1), the top of oil sprayer bolt is hexagon (1-3) in plane, the spherical groove in follower bolt hole and the spherical of oil sprayer bolt boss match, the bi-side of cylindrical body oil sprayer (3) are all processed as the facade be parallel to each other, two ends, pressing plate bottom surface left and right are respectively arc cylinder, oil sprayer bolt is through pressing plate, oil sprayer is fixed on cylinder head.
2. according to diesel engine oil injector hold-down device according to claim 1, it is characterized in that: the width of described cylindrical body oil sprayer two facades is less than or equal to the spacing of pressing plate two facades.
3. according to diesel engine oil injector hold-down device according to claim 1, it is characterized in that: the bottom of described oil sprayer bolt is spherical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520673335.XU CN205013179U (en) | 2015-09-01 | 2015-09-01 | Diesel engine oil injector hold -down device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520673335.XU CN205013179U (en) | 2015-09-01 | 2015-09-01 | Diesel engine oil injector hold -down device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205013179U true CN205013179U (en) | 2016-02-03 |
Family
ID=55211788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520673335.XU Active CN205013179U (en) | 2015-09-01 | 2015-09-01 | Diesel engine oil injector hold -down device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205013179U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107489574A (en) * | 2017-06-19 | 2017-12-19 | 宝沃汽车（中国）有限公司 | Oil sprayer clamping structure and engine |
| CN115075934A (en) * | 2022-03-31 | 2022-09-20 | 天津大学 | Pre-combustion chamber system and pre-combustion chamber jet flow disturbance enhanced combustion system thereof |
-
2015
- 2015-09-01 CN CN201520673335.XU patent/CN205013179U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107489574A (en) * | 2017-06-19 | 2017-12-19 | 宝沃汽车（中国）有限公司 | Oil sprayer clamping structure and engine |
| CN107489574B (en) * | 2017-06-19 | 2019-10-22 | 北汽福田汽车股份有限公司 | Oil sprayer clamping structure and engine |
| CN115075934A (en) * | 2022-03-31 | 2022-09-20 | 天津大学 | Pre-combustion chamber system and pre-combustion chamber jet flow disturbance enhanced combustion system thereof |
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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 | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Diesel engine oil injector hold-down device Effective date of registration: 20190612 Granted publication date: 20160203 Pledgee: Lingyuan steel enterprise limited liability company Pledgor: Dongfeng Chaoyang Chaochai Power Co., Ltd. Registration number: 2019210000021 |