CN210949755U

CN210949755U - Crankshaft timing sprocket assembly, engine and vehicle

Info

Publication number: CN210949755U
Application number: CN201921603467.XU
Authority: CN
Inventors: 刘友德
Original assignee: Shenzhen Zhenyu New Energy Power Technology Co Ltd
Current assignee: Shenzhen Zhenyu New Energy Power Technology Co Ltd
Priority date: 2019-09-24
Filing date: 2019-09-24
Publication date: 2020-07-07
Anticipated expiration: 2029-09-24

Abstract

The utility model discloses a bent axle timing sprocket assembly, engine and vehicle, wherein bent axle timing sprocket assembly includes: sprocket body, bent axle locating pin and band pulley locating pin. The crankshaft positioning pin is arranged at one end of the chain wheel body; the belt wheel positioning pin is arranged at the other end of the chain wheel body. This bent axle sprocket assembly in right time is through setting up bent axle locating pin and band pulley locating pin on the sprocket body to realize installing with the quick location fit of bent axle and belt pulley, in order to simplify the assembly process, promote assembly efficiency, thereby reduce assembly and manufacturing cost.

Description

Crankshaft timing sprocket assembly, engine and vehicle

Technical Field

The utility model relates to the technical field of vehicles, particularly, relate to a bent axle sprocket assembly in right time, engine and vehicle.

Background

Traditional bent axle timing sprocket all fixes a position the installation through key and bent axle when the cooperation is installed to need assemble the key earlier when the assembly, the sprocket is assembled again, leads to the assembly process more loaded down with trivial details, and it is long when increasing the assembly, wastes time and energy, has the improvement space.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the above-mentioned technical problem among the prior art to a certain extent at least. Therefore, the utility model provides a crankshaft timing sprocket assembly, this crankshaft timing sprocket assembly is through setting up bent axle locating pin and band pulley locating pin on the sprocket body to realize installing with the quick location fit of bent axle and belt pulley, with the simplified assembly process, promote assembly efficiency, thereby reduce assembly and manufacturing cost.

The utility model also provides an engine with above-mentioned bent axle sprocket assembly in right time.

The utility model also provides a vehicle of having above-mentioned engine.

According to the utility model discloses a bent axle timing sprocket assembly, include: a sprocket body; the crankshaft positioning pin is arranged at one end of the chain wheel body; and the belt wheel positioning pin is arranged at the other end of the chain wheel body.

According to the utility model discloses a bent axle sprocket assembly in right time, this bent axle sprocket assembly in right time is through setting up bent axle locating pin and band pulley locating pin on the sprocket body to realize installing with the quick location fit of bent axle and belt pulley, in order to simplify the assembly process, promote assembly efficiency, thereby reduce assembly and manufacturing cost.

In addition, according to utility model embodiment's bent axle timing sprocket assembly, can also have following additional technical characterstic:

according to some embodiments of the utility model, the bent axle locating pin is fixed the front end of sprocket body, the band pulley locating pin is fixed the rear end of sprocket body.

According to some embodiments of the utility model, the bent axle locating pin is to keeping away from the direction of front end extend and with the axis parallel arrangement of sprocket body, the band pulley locating pin is to keeping away from the direction of rear end extend and with the axis parallel arrangement of sprocket body.

According to some embodiments of the utility model, the terminal surface of front end to the rear end direction is sunken in order to form first fixed orifices, the terminal surface of rear end to the front end direction is sunken in order to form the second fixed orifices, the bent axle locating pin with first fixed orifices is fixed, the band pulley locating pin with the second fixed orifices is fixed.

According to some embodiments of the invention, the crankshaft positioning pin is integrally formed on the front end and the pulley positioning pin is integrally formed on the rear end.

According to some embodiments of the utility model, the sprocket body has the sprocket, the both sides of sprocket are provided with respectively along the ring of making an uproar that falls of circumference extension setting.

According to some embodiments of the invention, the noise reduction rings of the sprocket sides are symmetrically arranged about the sprocket.

According to some embodiments of the present invention, the sprocket body has a crankshaft mounting hole, the crankshaft mounting hole includes: the crankshaft comprises a first section and a second section, wherein the first section and the second section are coaxially arranged, the diameter of the first section is smaller than that of the second section, and the crankshaft is suitable for being inserted from the first section and being matched and positioned with the first section.

According to another aspect of the present invention, an engine includes the above-mentioned crankshaft timing sprocket assembly.

According to another aspect of the present invention, a vehicle includes the above-described engine.

Drawings

FIG. 1 is a cross-sectional view of a crankshaft timing sprocket assembly according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of a crankshaft timing sprocket assembly according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a crankshaft timing sprocket assembly according to an embodiment of the present invention.

Reference numerals:

crankshaft timing sprocket assembly 100, sprocket body 1, crankshaft locating pin 2, band pulley locating pin 3, first fixed orifices 11, second fixed orifices 12, sprocket 13, the ring 4 of making an uproar falls, crankshaft mounting hole 14, first section 141, second section 142.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically connected, electrically connected or can communicate with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

A crankshaft timing sprocket assembly 100 in accordance with an embodiment of the present invention is described below with reference to fig. 1-3.

According to the utility model discloses bent axle timing sprocket assembly 100 can include: sprocket body 1, bent axle locating pin 2 and band pulley locating pin 3.

As shown in fig. 1 and 2, sprocket body 1 is suitable for and has realized its effect with bent axle and belt pulley cooperation installation, wherein, for the accurate quick location installation of realizing sprocket body 1 and bent axle and belt pulley, the embodiment of the utility model provides a set up bent axle locating pin 2 in sprocket body 1's one end, bent axle locating pin 2 is suitable for and matches with the bent axle location to be used for realizing the quick location cooperation installation of sprocket body 1 and bent axle, and still set up band pulley locating pin 3 at sprocket body 1's the other end, and band pulley locating pin 3 is suitable for and matches with the belt pulley location, in order to be used for realizing the quick location cooperation installation of sprocket body 1 and belt pulley.

Because traditional bent axle timing sprocket all fixes a position the installation through key and bent axle when the cooperation is installed to need assemble the key earlier when the assembly, the reassembling sprocket, lead to the assembly process more loaded down with trivial details, it is long, waste time and energy to increase the assembly.

And the embodiment of the utility model provides a through set up two locating pins (bent axle locating pin 2 and band pulley locating pin 3) on sprocket body 1 to realize with the quick location installation of bent axle and belt pulley. Sprocket body 1 can just can set up two locating pins on it before the installation with the bent axle cooperation promptly, perhaps is integrated as an organic whole with sprocket body 1 and two locating pins to use locating pin and bent axle and belt pulley to advance line location, can directly save the process of assembly key, thereby simplified the assembly process, promoted assembly efficiency, and then reduced assembly and manufacturing cost.

According to the utility model discloses bent axle timing sprocket assembly 100, this bent axle timing sprocket assembly 100 is through setting up bent axle locating pin 2 and band pulley locating pin 3 on sprocket body 1 to realize installing with the quick location fit of bent axle and belt pulley, in order to simplify the assembly process, promote assembly efficiency, thereby reduce assembly and manufacturing cost.

Referring to the embodiment shown in fig. 1 to 3, a crankshaft positioning pin 2 is fixed to the front end of a sprocket body 1, and a pulley positioning pin 3 is fixed to the rear end of the sprocket body 1. Wherein, the front end is suitable for the one end that inserts sprocket body 1 from this end for the bent axle, sets up bent axle locating pin 2 in the front end so that bent axle locating pin 2 can be accurate quick fix a position with the bent axle, and then make the bent axle can be accurate quick cooperation install on sprocket body 1. And fix band pulley locating pin 3 at the rear end of sprocket body 1 to band pulley locating pin 3 can be fast accurate fix a position with the belt pulley, and then make the cooperation that the belt pulley can be accurate quick install on sprocket body 1.

Further, refer to fig. 1 and 2, crankshaft locating pin 2 extends and is with the axis parallel arrangement of sprocket body 1 to the direction of keeping away from the front end, in order to further fix a position with the bent axle, in order to make the location more accurate, and then make the effect that bent axle and sprocket body 1 match the installation better, and band pulley locating pin 3 extends and with sprocket body 1's axis parallel arrangement to the direction of keeping away from the rear end, in order to further fix a position with the belt pulley, in order to make the location more accurate, and then make the effect that belt pulley and sprocket body 1 match the installation better.

Still further, referring to fig. 1, the front end surface is recessed toward the rear end to form a first fixing hole 11, the rear end surface is recessed toward the front end to form a second fixing hole 12, the crankshaft positioning pin 2 is fixed to the first fixing hole 11, and the pulley positioning pin 3 is fixed to the second fixing hole 12. Before the installation is matchd with sprocket body 1 at bent axle and belt pulley, can install bent axle locating pin 2 in first fixed orifices 11 earlier, install band pulley locating pin 3 in second fixed orifices 12 to realize that bent axle locating pin 2 and band pulley locating pin 3 are stable to be fixed on sprocket body 1, and then can directly save the process of assembly key in the traditional assembling process, thereby simplified the assembly process, promoted assembly efficiency, and then reduced assembly and manufacturing cost.

According to some embodiments of the present invention, the crankshaft positioning pin 2 is integrally formed on the front end and the pulley positioning pin 3 is integrally formed on the rear end. Therefore, the process of assembling the crankshaft positioning pin 2 and the belt pulley positioning pin 3 on the chain wheel body 1 is omitted, the assembling time is further saved, and the crankshaft positioning pin 2 and the belt pulley positioning pin 3 can be more firmly arranged on the chain wheel body 1, so that the positioning accuracy of the crankshaft positioning pin 2 and the belt pulley positioning pin 3 with a crankshaft and a belt pulley is ensured.

As shown in fig. 1 to 3, the sprocket body 1 has a sprocket 13, the sprocket 13 is adapted to cooperate with a chain for transmission, and noise reduction rings 4 extending along the circumferential direction are respectively disposed on both sides of the sprocket 13. Because it has elasticity to fall the ring 4 of making an uproar, and the chain is preferred with fall the ring 4 contact of making an uproar, consequently the extrusion force when having reduced the chain and having contacted with sprocket body 1 to avoid chain and sprocket body 1 to take place the striking, with the noise when reducing chain and sprocket body 1 meshing cooperation, and then optimized the NVH performance of engine.

Preferably, the noise reduction ring 4 can be a rubber ring, and the noise reduction ring 4 is adapted to be disposed on the sprocket body 1 through a vulcanization process. From this, the stability of setting up of noise reduction ring 4 on sprocket body 1 has been guaranteed.

Further, referring to fig. 1, the noise reduction rings 4 on both sides of the sprocket 13 are symmetrically disposed about the sprocket 13 so that the chain can be simultaneously in contact with the noise reduction rings 4 on both sides of the sprocket 13, thereby ensuring the stability of the transmission.

As shown in fig. 1, the sprocket body 1 has a crankshaft mounting hole 14, and the crankshaft is adapted to be fittingly mounted in the crankshaft mounting hole 14, wherein the crankshaft mounting hole 14 includes: a first section 141 and a second section 142, the first section 141 being coaxially disposed with the second section 142, the first section 141 having a diameter smaller than the diameter of the second section 142, the crankshaft being adapted to be inserted from the first section 141 and positioned in cooperation with the first section 141. Since the aperture of the second section 142 is larger than that of the first section 141, the machining precision of the first section 141 is ensured by reducing the machining depth of the first section 141, and the matching stability of the crankshaft and the first section 141 is further ensured.

Wherein, the clearance fit amount between the crankshaft and the first section 141 is 0-0.1 mm.

According to some embodiments of the utility model, be provided with the timing mark recess on the rear end of band pulley locating pin 3, the timing mark recess can regard as the timing mark point to in the assembly of bent axle timing sprocket assembly 100.

An engine according to another aspect of the present invention includes the crankshaft timing sprocket assembly 100 described above. The NVH performance of the engine is better.

According to another aspect embodiment of the present invention, a vehicle includes the engine described in the above embodiments. Other configurations of the vehicle, such as transmissions, braking systems, steering systems, etc., are known in the art and well known to those skilled in the art, and therefore will not be described in detail herein.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. A crankshaft timing sprocket assembly, comprising:

a sprocket body;

the crankshaft positioning pin is arranged at one end of the chain wheel body;

and the belt wheel positioning pin is arranged at the other end of the chain wheel body.

2. The crankshaft timing sprocket assembly of claim 1, wherein the crankshaft locating pin is fixed to a front end of the sprocket body and the pulley locating pin is fixed to a rear end of the sprocket body.

3. The crankshaft timing sprocket assembly of claim 2, wherein the crankshaft locating pin extends away from the front end and is disposed parallel to an axis of the sprocket body, and the pulley locating pin extends away from the rear end and is disposed parallel to the axis of the sprocket body.

4. The crankshaft timing sprocket assembly of claim 2, wherein the end face of the front end is recessed toward the rear end to form a first fixing hole, the end face of the rear end is recessed toward the front end to form a second fixing hole, the crankshaft locating pin is fixed to the first fixing hole, and the pulley locating pin is fixed to the second fixing hole.

5. The crankshaft timing sprocket assembly of claim 2, wherein the crankshaft locating pin is integrally formed on the front end and the pulley locating pin is integrally formed on the rear end.

6. The crankshaft timing sprocket assembly of claim 1, wherein said sprocket body has sprocket teeth each having a circumferentially extending noise reduction ring disposed on each side of said sprocket teeth.

7. The crankshaft timing sprocket assembly of claim 6, wherein said noise reduction rings on either side of said sprocket are symmetrically disposed about said sprocket.

8. The crankshaft timing sprocket assembly of claim 1, wherein the sprocket body has a crankshaft mounting bore comprising: the crankshaft comprises a first section and a second section, wherein the first section and the second section are coaxially arranged, the diameter of the first section is smaller than that of the second section, and the crankshaft is suitable for being inserted from the first section and being matched and positioned with the first section.

9. An engine comprising a crankshaft timing sprocket assembly according to any of claims 1-8.

10. A vehicle characterized by comprising an engine as claimed in claim 9.