CN203374743U - Balance shaft chain tensioner - Google Patents
Balance shaft chain tensioner Download PDFInfo
- Publication number
- CN203374743U CN203374743U CN201320318276.5U CN201320318276U CN203374743U CN 203374743 U CN203374743 U CN 203374743U CN 201320318276 U CN201320318276 U CN 201320318276U CN 203374743 U CN203374743 U CN 203374743U
- Authority
- CN
- China
- Prior art keywords
- shaft chain
- draw
- groove
- trunnion shaft
- balance shaft
- Prior art date
- 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.)
- Expired - Lifetime
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Abstract
The utility model relates to a chain tensioner, in particular to a balance shaft chain tensioner. The balance shaft chain tensioner comprises a balance shaft chain tensioning plate, a tensioning plate bolt and a torsional spring. A neck is formed in one end of the balance shaft chain tensioning plate. The tensioning plate bolt comprises a protruding part, a cylindrical supporting part and a locking and holding part, wherein the supporting part is connected with the protruding part into a whole, one end, far away from the protruding part, of the supporting part extends to form the locking and holding part, the locking and holding part is provided with outer threads, the protruding part is clamped on the end face of one end, where the neck is formed, of the balance shaft chain tensioning plate, the supporting part penetrates through the neck from one end of the neck of the balance shaft chain tensioning plate and extends out of the end face of the other end of the neck in a protruding mode, one end of the torsional spring is arranged in the neck of the balance shaft chain tensioning plate, the supporting part of the tensioning plate bolt is wound with the torsional spring, and the other end of the torsional spring extends out of the neck to be clamped inside a locating hole formed in an oil pan body assembly. The balance shaft chain tensioner has the advantages of being capable of enabling the number of parts to be effectively reduced, compact in structure and low in cost.
Description
Technical field
The utility model relates to a kind of chain tensioning device, particularly a kind of trunnion shaft chain tensioning device.
Background technique
As shown in Figure 1 to Figure 3, tensioner body 1 is embedded with abutment sleeve 2 to the chain tensioning device structure of existing trunnion shaft, and is enclosed within on bearing pin 3, torsion spring 4 one ends are buckled on cylinder body, the other end embeds in stretcher, and torsion passes to tensioner body 1 by this end, thus tension chain 5.Abutment sleeve 2 one end faces are concordant with tensioner body 1, and the other end outline is higher than tensioner body 1.On the free end of bearing pin 3, during jack panel, sleeve 2 can play a supportive role, and tensioner body 1 still can be rotated around bearing pin 3.This existing product has the following disadvantages: this stretcher assembly structure comprises the parts such as tensioner body, bearing pin, abutment sleeve, torsion spring and nut, and number of parts is more, and cost high and when assembling operation is more.
Summary of the invention
The purpose of this utility model is to provide and a kind ofly can effectively reduces number of spare parts, compact structure, trunnion shaft chain tensioning device that cost is low.
The technological scheme that the utility model adopts for achieving the above object is: a kind of trunnion shaft chain tensioning device, this chain tensioning device comprises trunnion shaft chain tension plate, tensioning plate bolt and torsion spring, trunnion shaft chain tension plate one end is provided with draw-in groove, the tensioning plate bolt comprises protuberance, with protuberance, be connected as a single entity and for columned supporting portion, extend to form and be provided with the externally threaded section that holds by supporting portion away from protuberance one end, protuberance is stuck on the draw-in groove one end end face of trunnion shaft chain tension plate, supporting portion is also given prominence to draw-in groove the other end end face by draw-in groove one end of trunnion shaft chain tension plate through draw-in groove, torsion spring one end is arranged in the draw-in groove of trunnion shaft chain tension plate and outside the supporting portion of tensioning plate bolt, the torsion spring the other end stretches out draw-in groove and sticks into the positioning hole be positioned on oil sump body assembly.
Further technological scheme of the present utility model is: the diameter of described supporting portion is greater than the diameter of the section of holding, and the screw thread held in section can dock with crankcase assembly, and trunnion shaft chain tension plate is rotating to be positioned between protuberance and crankcase assembly.
Described draw-in groove is a shoulder hole, and torsion spring one end is arranged in the hole of the large end of diameter in draw-in groove.
The utility model trunnion shaft chain tensioning device is because the tensioning plate bolt is provided with the protuberance be connected as a single entity, supporting portion and hold section, protuberance is stuck on the draw-in groove one end end face of trunnion shaft chain tension plate, supporting portion is also given prominence to draw-in groove the other end end face by draw-in groove one end through draw-in groove, make that trunnion shaft chain tension plate is rotating to be positioned between protuberance and crankcase assembly, do not need to arrange a plurality of parts such as bearing pin and abutment sleeve, can effectively reduce number of spare parts, make the structure of chain tensioning device compacter, the part minimizing can effectively improve efficiency of assembling and reduce production costs, do not need independent lubricating oil path to be set to the stretcher fuel feeding yet.
Below in conjunction with the drawings and specific embodiments, the utility model trunnion shaft chain tensioning device is further described.
The accompanying drawing explanation
Fig. 1 is prior art trunnion shaft chain tensioning device structural representation;
Fig. 2 is the structural representation after the chain tensioning device of trunnion shaft shown in Fig. 1 is removed torsion spring;
Fig. 3 is the A-A direction sectional view of Fig. 2;
Fig. 4 is the utility model trunnion shaft chain tensioning device structural representation;
Fig. 5 is the B-B direction sectional view of Fig. 4;
Fig. 6 is the C part zoomed-in view of Fig. 5;
Fig. 7 is that the chain tensioning device of trunnion shaft shown in Fig. 4 is arranged on the structural representation on crankcase assembly.
Primary component label declaration: 6-torsion spring, 7-trunnion shaft chain tension plate, 8-tensioning plate bolt, 81-protuberance, the 82-supporting portion, 83-holds section, 9-draw-in groove, 10-trunnion shaft chain, the 12-positioning hole, 13-oil sump body assembly, 14-trunnion shaft sprocket wheel, 15-crankcase assembly.
Embodiment
As shown in Figures 4 to 7, the utility model trunnion shaft chain tensioning device, this chain tensioning device comprises trunnion shaft chain tension plate 7, tensioning plate bolt 8 and torsion spring 6, trunnion shaft chain tension plate 7 one ends are provided with draw-in groove 9, tensioning plate bolt 8 comprises protuberance 81, with protuberance 81, be connected as a single entity and for columned supporting portion 82, extend to form and be provided with the externally threaded section 83 that holds by supporting portion 82 away from protuberance 81 1 ends, protuberance 81 is stuck on the draw-in groove 9 one end end faces of trunnion shaft chain tension plate 7, supporting portion 82 is also given prominence to draw-in groove 9 the other end end faces by draw-in groove 9 one ends of trunnion shaft chain tension plate 7 through draw-in groove 9, as shown in Figure 6, the distance of supporting portion 82 outstanding draw-in groove 9 the other end end faces is d in the present embodiment.Torsion spring 6 one ends are arranged in the draw-in groove 9 of trunnion shaft chain tension plate 7 and outside the supporting portion 82 of tensioning plate bolt 8, and torsion spring 6 the other ends stretch out draw-in groove 9 and stick into the positioning hole 12 be positioned on oil sump body assembly 13.Described draw-in groove 9 is a shoulder hole, and torsion spring 6 one ends are arranged in the hole of the large end of diameter in draw-in groove 9.The diameter of described supporting portion 82 is greater than the diameter of the section of holding 83, and the screw thread held in section 83 can dock with crankcase assembly, is holding section 83 after crankcase assembly tightens, and trunnion shaft chain tension plate 7 is rotating to be positioned between protuberance 81 and crankcase assembly.
While being arranged on crankcase assembly 15 by the utility model chain tensioning device, chain tensioning device is arranged on trunnion shaft chain 10 downsides of trunnion shaft sprocket wheel 14, and chain tensioning device is fixed on crankcase assembly 15 by tensioning plate and tensioning plate bolt 8.One end of torsion spring 6 outstanding trunnion shaft chain tension plates 7 stretches out draw-in groove 9 and sticks into the positioning hole 12 be positioned on oil sump body assembly 13, and the other end is stuck in the draw-in groove 9 of trunnion shaft chain tension plate 7.The torsion of torsion spring 6 will make trunnion shaft chain tension plate 7 near trunnion shaft chain 10, thereby play the effect of tension balance axle chain 10.
Claims (3)
1. a trunnion shaft chain tensioning device, it is characterized in that, this chain tensioning device comprises trunnion shaft chain tension plate (7), tensioning plate bolt (8) and torsion spring (6), trunnion shaft chain tension plate (7) one ends are provided with draw-in groove (9), tensioning plate bolt (8) comprises protuberance (81), with protuberance (81), be connected as a single entity and for columned supporting portion (82), extend to form and be provided with the externally threaded section (83) that holds by supporting portion (82) away from protuberance (81) one ends, protuberance (81) is stuck on draw-in groove (9) the one end end faces of trunnion shaft chain tension plate (7), supporting portion (82) is also given prominence to draw-in groove (9) the other end end face by draw-in groove (9) one ends of trunnion shaft chain tension plate (7) through draw-in groove (9), torsion spring (6) one ends are arranged in the draw-in groove (9) of trunnion shaft chain tension plate (7) and outside the supporting portion (82) of tensioning plate bolt (8), torsion spring (6) the other end stretches out draw-in groove (9) and sticks into the positioning hole (12) be positioned on oil sump body assembly (13).
2. trunnion shaft chain tensioning device as claimed in claim 1, it is characterized in that, the diameter of described supporting portion (82) is greater than the diameter of the section of holding (83), the screw thread held in section (83) can dock with crankcase assembly, and trunnion shaft chain tension plate (7) is rotating to be positioned between protuberance (81) and crankcase assembly.
3. trunnion shaft chain tensioning device as claimed in claim 1, is characterized in that, described draw-in groove (9) is a shoulder hole, and torsion spring (6) one ends are arranged in the hole of the large end of diameter in draw-in groove (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320318276.5U CN203374743U (en) | 2013-06-04 | 2013-06-04 | Balance shaft chain tensioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320318276.5U CN203374743U (en) | 2013-06-04 | 2013-06-04 | Balance shaft chain tensioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203374743U true CN203374743U (en) | 2014-01-01 |
Family
ID=49837272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320318276.5U Expired - Lifetime CN203374743U (en) | 2013-06-04 | 2013-06-04 | Balance shaft chain tensioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203374743U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109667897A (en) * | 2017-10-13 | 2019-04-23 | 舍弗勒技术股份两合公司 | Mechanical tensioner with torsion spring |
| CN114110109A (en) * | 2021-11-24 | 2022-03-01 | 哈尔滨东安汽车动力股份有限公司 | Oil pump chain guide rail arrangement structure |
-
2013
- 2013-06-04 CN CN201320318276.5U patent/CN203374743U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109667897A (en) * | 2017-10-13 | 2019-04-23 | 舍弗勒技术股份两合公司 | Mechanical tensioner with torsion spring |
| CN114110109A (en) * | 2021-11-24 | 2022-03-01 | 哈尔滨东安汽车动力股份有限公司 | Oil pump chain guide rail arrangement structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140101 |