CN216867435U - Mechanical tensioner for oil pump - Google Patents
Mechanical tensioner for oil pump Download PDFInfo
- Publication number
- CN216867435U CN216867435U CN202123029111.XU CN202123029111U CN216867435U CN 216867435 U CN216867435 U CN 216867435U CN 202123029111 U CN202123029111 U CN 202123029111U CN 216867435 U CN216867435 U CN 216867435U
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- guide rail
- free end
- torsional spring
- torsion spring
- oil pump
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Abstract
The utility model discloses an oil pump mechanical tensioner, which comprises a guide rail, wherein one end of the guide rail is provided with a connecting part, the connecting part is provided with a mounting hole, the connecting part is sleeved on a rotating shaft positioned on an engine cylinder body through the mounting hole, the guide rail is provided with a guide rail surface, and the guide rail surface is far away from the connecting part and also comprises a torsion spring; a boss extends out of the connecting part along the axial direction of the mounting hole, and a limiting part is arranged on the guide rail; the body cover of torsional spring is located outside the boss, the first free end of torsional spring with spacing portion contact, and the second free end with set up in the stop part contact back of engine cylinder body, the torsional spring produces predetermined elastic deformation, this application adopts the torsional spring to provide power to the guide rail, can provide higher tensile force to the tensioning chain for traditional shell fragment to the torsional spring volume is littleer, and the space that occupies is littleer, and fatigue strength is higher.
Description
Technical Field
The utility model belongs to the technical field of tensioners, and particularly relates to an oil pump mechanical tensioner.
Background
At present the tensioner is mostly hydraulic tensioner, if engine unit's the form of arranging does not leave sufficient assembly space or the engine type is small-size engine, can take place because of the not enough problem of unable installation fluid pressure type engine timing chain tensioner in assembly process of tensioner, brings the trouble for assembly process. For this reason, some mechanical tensioners have been proposed in the prior art, which use metal elastic sheets, but the metal elastic sheets have low fatigue strength and limited elasticity, and it is difficult to provide higher tension.
Disclosure of Invention
The utility model aims to provide an oil pump mechanical tensioner, which aims to solve the technical problems in the background technology.
In order to solve the technical problems, the utility model aims to realize that:
the mechanical tensioner of the oil pump comprises a guide rail, wherein one end of the guide rail is provided with a connecting part, the connecting part is provided with a mounting hole, the connecting part is sleeved on a rotating shaft positioned on an engine cylinder body through the mounting hole, the guide rail is provided with a guide rail surface, and the guide rail surface is far away from the connecting part and further comprises a torsional spring; a boss extends out of the connecting part along the axial direction of the mounting hole, and a limiting part is arranged on the guide rail; the body cover of torsional spring is located outside the boss, the first free end of torsional spring with spacing portion contact, and the second free end with set up in the block portion contact back of engine cylinder body, the torsional spring produces predetermined elastic deformation.
On the basis of the above scheme and as a preferable scheme of the scheme: the limiting part comprises a baffle, and the first free end of the torsion spring is in contact with the baffle.
On the basis of the above scheme and as a preferable scheme of the scheme: the baffle is provided with the strengthening rib deviating from the side where the first free end of the torsion spring is located.
On the basis of the above scheme and as a preferable scheme of the scheme: the baffle is provided with a bulge towards the first free end of the torsion spring, and the bulge is close to the edge of the side, away from the guide rail, of the baffle.
On the basis of the above scheme and as a preferable scheme of the scheme: the guide rail is provided with an annular groove below the outer peripheral surface of the boss, and the body part of the torsion spring is accommodated in the annular groove.
Compared with the prior art, the utility model has the outstanding and beneficial technical effects that: this application adopts the torsional spring to provide power to the guide rail, can provide higher tensile force to the tensioning chain for traditional shell fragment to the torsional spring volume is littleer, and the space that occupies is littleer, and fatigue strength is higher.
Drawings
FIG. 1 is a perspective view of the overall structure of the present invention;
FIG. 2 is a front view of the overall structure of the present invention;
FIG. 3 is a rear elevational view of the overall construction of the present invention;
FIG. 4 is a sectional view A-A;
fig. 5 is a schematic view of the torsion spring structure.
Detailed Description
In order to make the purpose, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. All other embodiments obtained by a person skilled in the art without making any inventive step, based on the given embodiments, fall within the scope of protection of the present application.
In the description of the present application, it is to be understood that the terms "upper", "lower", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.
In the description of the present application, the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated.
It should be noted that the terms "electrolyte" and "gelling agent" are conventional materials in the art, and the technical features are not the utility model of the present invention, and therefore, the components of the "electrolyte" and the "gelling agent" are not described in detail.
The mechanical tensioner of the oil pump comprises a guide rail 10, wherein one end of the guide rail 10 is provided with a connecting part 11, the connecting part 11 is provided with a mounting hole 112, the connecting part 11 is sleeved on a rotating shaft positioned on an engine cylinder body through the mounting hole 112, the guide rail 10 is provided with a guide surface 14, the guide surface 14 is far away from the connecting part 11, and the mechanical tensioner further comprises a torsion spring 20; a boss 111 extends out of the connecting part 11 along the axial direction of the mounting hole 112, and a limiting part 12 is arranged on the guide rail 10; the body 21 of the torsion spring is sleeved outside the boss 111, and after the first free end 22 of the torsion spring contacts with the limiting part 12 and the second free end 23 contacts with a blocking part (not shown in the drawing) arranged on the engine cylinder body, the torsion spring 20 generates a preset elastic deformation; it should be noted that, in the process of contacting the second free end 23 with the blocking portion of the engine cylinder, a biasing force needs to be applied to the second free end 23, so that the torsion spring is elastically deformed to make the second free end 23 contact with and be limited by the blocking portion on the engine cylinder, the deformation is a preset elastic deformation, and the preset elastic deformation provides a preset elastic force to the tensioning chain, so that the tensioning chain maintains an initial tensioning force.
The limiting part 12 is a baffle plate, and the first free end 22 of the torsion spring is in contact with the baffle plate. In this embodiment, it is further preferred that the baffle is provided with a rib 13 on the side facing away from the first free end 22 of the torsion spring. Considering that the timing chain can generate vibration during operation, the vibration inevitably drives the guide rail to vibrate together, and in order to avoid the first end 22 of the torsion spring from coming off from the baffle plate and causing failure, the present embodiment preferably has a protrusion 121 on the side of the baffle plate facing the first free end 22 of the torsion spring, and the protrusion 121 is close to the edge of the side of the baffle plate away from the guide rail, so that the first free end 22 of the torsion spring can be reliably limited from coming off from the baffle plate.
As a further preferable mode of the present embodiment, the guide rail 10 is provided with an annular groove 15 below the outer circumferential surface of the boss 111, the body 21 of the torsion spring is partially received in the annular groove 15, and the torsion spring can be effectively received in the guide rail by the arrangement of the annular groove 15, so that the volume of the tensioner is further reduced, and the tensioner is more suitable for an engine with a small installation space. Of course, it should be noted that, in order to avoid the interference between the first free end 22 and the second free end 23 of the torsion spring and the guide rail after the torsion spring body 21 is partially placed in the annular groove 15, in the present embodiment, an avoidance channel is provided in the movable range of the first free end 22 and the second free end 23 of the torsion spring, so as to solve the interference problem.
Compared with the prior art, the utility model has the outstanding and beneficial technical effects that: this application adopts the torsional spring to provide power to the guide rail, can provide higher tensile force to the tensioning chain for traditional shell fragment to the torsional spring volume is littleer, and the space that occupies is littleer, and fatigue strength is higher.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered by the protection scope of the utility model.
Claims (5)
1. The utility model provides an oil pump machinery rises and tightly rises ware, includes the guide rail, guide rail one end has a connecting portion, connecting portion have the mounting hole, connecting portion via the mounting hole cover is established in the pivot that is located engine cylinder body, the guide rail has the guide rail face, the guide rail face is kept away from connecting portion, its characterized in that: the device also comprises a torsion spring; a boss extends out of the connecting part along the axial direction of the mounting hole, and a limiting part is arranged on the guide rail; the body cover of torsional spring is located outside the boss, the first free end of torsional spring with spacing portion contact, and the second free end with set up in the block portion contact back of engine cylinder body, the torsional spring produces predetermined elastic deformation.
2. The oil pump mechanical tensioner as set forth in claim 1, wherein: the limiting part comprises a baffle, and the first free end of the torsion spring is in contact with the baffle.
3. The oil pump mechanical tensioner as claimed in claim 2, wherein: the baffle is provided with the strengthening rib deviating from the side where the first free end of the torsion spring is located.
4. The oil pump mechanical tensioner as claimed in claim 2, wherein: the baffle is provided with a bulge towards the first free end of the torsion spring, and the bulge is close to the edge of the side, away from the guide rail, of the baffle.
5. The oil pump mechanical tensioner as set forth in claim 1, wherein: the guide rail is provided with an annular groove below the outer peripheral surface of the boss, and the body part of the torsion spring is accommodated in the annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123029111.XU CN216867435U (en) | 2021-12-01 | 2021-12-01 | Mechanical tensioner for oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123029111.XU CN216867435U (en) | 2021-12-01 | 2021-12-01 | Mechanical tensioner for oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216867435U true CN216867435U (en) | 2022-07-01 |
Family
ID=82127682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123029111.XU Active CN216867435U (en) | 2021-12-01 | 2021-12-01 | Mechanical tensioner for oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216867435U (en) |
-
2021
- 2021-12-01 CN CN202123029111.XU patent/CN216867435U/en active Active
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