CN201615191U - Chain tensioner of aircraft piston engine - Google Patents
Chain tensioner of aircraft piston engine Download PDFInfo
- Publication number
- CN201615191U CN201615191U CN2010201451994U CN201020145199U CN201615191U CN 201615191 U CN201615191 U CN 201615191U CN 2010201451994 U CN2010201451994 U CN 2010201451994U CN 201020145199 U CN201020145199 U CN 201020145199U CN 201615191 U CN201615191 U CN 201615191U
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- Prior art keywords
- tension device
- tensioner
- chamber
- cavity
- plug screw
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Abstract
The utility model discloses a chain tensioner of an aircraft piston engine, which comprises a tensioner body and a plug screw, wherein the plug screw screws the tensioner body into an engine block; the tensioner body includes a tensioner left cavity, a tensioner right cavity and a right cavity spring; a spring is disposed inside the tensioner left body; the end face of one end of the tensioner left body is jointed to the end face of the plug screw; the other end of the tensioner left body is sleeved inside the tensioner right body and provided with a one-way valve; the tensioner left body is provided with a hole connected with a lubricating oil path of the engine block; and the right cavity spring is disposed in the cavity body of the tensioner right cavity and abuts to the one-way valve. By means of springs arranged in the left cavity and the right cavity and hydraulic action of lubricating oil, the chain tensioner of an aircraft piston engine moves stably, avoids producing impact sound, and greatly reduces working noise.
Description
Technical field
The utility model relates to a kind of belt tensioner, relates in particular to a kind of tension device that carries out tensioner at the chain of aviation piston type engine.
Background technique
The power of aviation piston type engine drive cam shaft generally carries out transmission from bent axle by chain.Since motor have revolution fluctuation, chain can extend and cause lax, thereby occur that the engines distribution phase place is not normal, situation such as make a noise.The chain tension device can make chain keep suitable tensioner state, occurs to prevent above-mentioned situation.
The structure of existing tension device comprises a shell that has cavity, be located at screw rod and the swivel nut by being threaded togather each other in the shell, swivel nut stretches out shell and radially fixing with respect to shell, on screw rod, also be socketed with a clockwork spring, be used to prevent that clockwork spring from bloating along screw axial, back-up ring of socket on screw rod, the outside of back-up ring also is provided with a spider cylindraceous that is socketed on the screw rod.Because its axial dimension of the processed back of spider just is fixed, when the axial dimension of spider is nonstandard, especially slightly hour, in the engine operation process, Strike note takes place between spider meeting and the miscellaneous part, noise is bigger, and related components is fragile, and can not play good qualification effect to clockwork spring.
The model utility content
Goal of the invention: the purpose of this utility model is at the existing the problems referred to above of available engine chain tension device, and a kind of simple in structure, little aviation piston type engine chain tension device that can play fine tensioner effect to chain of operating noise is provided.
Technological scheme: aviation piston type engine chain tension device described in the utility model, comprise tension device main body and plug screw, described plug screw is screwed into described tension device main body in the engine cylinder-body, and described tension device main body comprises chamber, a tension device left side, the right chamber of tension device and right chamber spring; A described tension device left side is provided with spring in the chamber, and the end face of chamber, a described tension device left side one end and the end face of described plug screw are fitted, and the other end is enclosed within the right chamber of described tension device, and is provided with one-way valve; A described tension device left side also is provided with the hole that is connected with engine cylinder-body lubricant oil oil circuit on the chamber; Described right chamber spring is arranged in the cavity in the right chamber of described tension device, and withstands on the described one-way valve.
In order to prevent that fall down in left chamber in transportation and assembly process from right chamber, the place, left side in the right chamber of described tension device is provided with back-up ring.
For canned motor lubricant oil better, described plug screw is provided with packing ring.
The described hole that is connected with engine cylinder-body lubricant oil oil circuit is 2, is oppositely arranged on respectively on the wall in chamber, a described tension device left side.
During work, engine cylinder-body lubricant oil enters in the chamber, a tension device left side, and when tension device left side cavity pressure during greater than the right cavity pressure of tension device, one-way valve can be opened, and lubricant oil flows into the right chamber of tension device, adds the active force of right chamber spring, makes chamber, left and right sides balance; When tension device left side cavity pressure during less than the right chamber of tension device, the cavity direction motion left of right chamber, this moment, one-way valve can not opened, and right chamber lubricant oil can only leak from the gap location in right chamber and left chamber very slowly, right chamber lubricant oil has reaction force very stably, thereby makes the motion in right chamber more steady.
Beneficial effect: the utility model compared with prior art, its beneficial effect is: 1, in the model utility tension device, owing in the chamber, the left and right sides effect of spring and lubricant oil hydraulic pressure is arranged, its motion is very steady, Strike note can not take place, and has significantly reduced operating noise; 2, the utility model has been eliminated relative movement unnecessary between the part, thereby makes part not easy to wear, has prolonged the working life of product; 3, production of the present utility model and easy to assembly, quick, in light weight, material are saved and are cut down finished cost.
Description of drawings
Fig. 1 is the overall structure schematic representation of the utility model tension device;
Fig. 2 is the structural representation of the utility model tension device main body;
Fig. 3 is the working state figure of the utility model tension device when being assemblied on the aviation piston type engine.
Embodiment
Below in conjunction with accompanying drawing, the mode by embodiment is elaborated to technical solution of the present invention, but protection scope of the present invention is not limited to described embodiment.
As shown in Figure 1 and Figure 2, a kind of aviation piston type engine chain tension device comprises tension device main body 1 and plug screw 4, and described plug screw 4 is provided with packing ring 3; Described plug screw 4 is screwed into described tension device main body 1 in the engine cylinder-body, and described tension device main body 1 comprises chamber 5, a tension device left side, the right chamber 6 of tension device and right chamber spring 9; A described tension device left side is provided with spring 2 in the chamber 5; The end face of chamber, a described tension device left side 5 one ends and the end face of described plug screw 4 are fitted, and the other end is enclosed within the right chamber 6 of described tension device, and is provided with one-way valve 8; Also be relatively set with 2 holes 15 that are connected with engine cylinder-body lubricant oil oil circuit on 5 walls of chamber, a described tension device left side; Described right chamber spring 9 is arranged in the cavity in the right chamber 6 of described tension device, and withstands on the described one-way valve 8; The place, left side in the right chamber 6 of described tension device is provided with back-up ring 7.
As shown in Figure 3, after the utility model aviation piston type engine chain tension device is assemblied on the motor, the tension device roof pressure is on chain tightening plate 11, these tightening plate 11 roof pressures are on chain 14 outsides, chain 14 is socketed on drive sprocket 12 and the driven sprocket 10, between drive sprocket 12 and driven sprocket 10, chain slide 13 is installed in the opposite side of tightening plate 11 to tightening plate 11 roof pressures at the position on the chain 14.In order to increase the smoothness of sliding between chain 14 and the tightening plate 11, the two ends of tightening plate 11 are towards the direction arc-shaped bend of this tension device, and the outer arcuate face of curved tightening plate 11 and the outer side surface of chain 14 are fitted.
Claims (4)
1. aviation piston type engine chain tension device, comprise tension device main body (1) and plug screw (4), described plug screw (4) is screwed into described tension device main body (1) in the engine cylinder-body, it is characterized in that: described tension device main body (1) comprises chamber (5), a tension device left side, the right chamber (6) of tension device and right chamber spring (9); Be provided with spring (2) in the described tension device chamber, a left side (5), the end face of chamber, a described tension device left side (5) one ends and the end face of described plug screw (4) are fitted, and the other end is enclosed within the right chamber of described tension device (6), and is provided with one-way valve (8); Also be provided with the hole (15) that is connected with engine cylinder-body lubricant oil oil circuit on the described tension device chamber, a left side (5); Described right chamber spring (9) is arranged in the cavity in the right chamber of described tension device (6), and withstands on the described one-way valve (8).
2. aviation piston type engine chain tension device according to claim 1 is characterized in that: the place, left side in the right chamber of described tension device (6) is provided with back-up ring (7).
3. aviation piston type engine chain tension device according to claim 1 and 2 is characterized in that: described plug screw (4) is provided with packing ring (3).
4. aviation piston type engine chain tension device according to claim 1 and 2 is characterized in that: the described hole (15) that is connected with engine cylinder-body lubricant oil oil circuit is 2, is oppositely arranged on respectively on the wall in described tension device chamber, a left side (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201451994U CN201615191U (en) | 2010-03-30 | 2010-03-30 | Chain tensioner of aircraft piston engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201451994U CN201615191U (en) | 2010-03-30 | 2010-03-30 | Chain tensioner of aircraft piston engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201615191U true CN201615191U (en) | 2010-10-27 |
Family
ID=43001560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201451994U Expired - Fee Related CN201615191U (en) | 2010-03-30 | 2010-03-30 | Chain tensioner of aircraft piston engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201615191U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734407A (en) * | 2012-06-12 | 2012-10-17 | 东风朝阳朝柴动力有限公司 | Hydraulic chain tensioner device |
| CN113898635A (en) * | 2020-06-22 | 2022-01-07 | 比亚迪股份有限公司 | Hydraulic rod, hydraulic tensioner and vehicle |
-
2010
- 2010-03-30 CN CN2010201451994U patent/CN201615191U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734407A (en) * | 2012-06-12 | 2012-10-17 | 东风朝阳朝柴动力有限公司 | Hydraulic chain tensioner device |
| CN113898635A (en) * | 2020-06-22 | 2022-01-07 | 比亚迪股份有限公司 | Hydraulic rod, hydraulic tensioner and vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: AVIC NANJING LIGHT AERO-ENGINE CO., LTD. Free format text: FORMER OWNER: JINCHENG GROUP CO., LTD. Effective date: 20120524 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120524 Address after: 210002 Zhongshan East Road, Jiangsu, China, No. 518, No. Patentee after: AVIC NANJING LIGHT AERO-POWER CO., LTD. Address before: 210002 Zhongshan East Road, Jiangsu, China, No. 518, No. Patentee before: Jincheng Group Co. Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101027 Termination date: 20160330 |