CN213479077U

CN213479077U - Balance shaft hydraulic tensioner integrates

Info

Publication number: CN213479077U
Application number: CN202021820028.7U
Authority: CN
Inventors: 苏瑜; 高鑫; 王子维; 李山
Original assignee: Iwis Transmission System Pinghu Co ltd
Current assignee: Iwis Transmission System Pinghu Co ltd
Priority date: 2020-08-27
Filing date: 2020-08-27
Publication date: 2021-06-18
Anticipated expiration: 2030-08-27

Abstract

The utility model discloses an integrated balance shaft hydraulic tensioner, which comprises a piston tensioner and a tensioner block, wherein the tensioner block is contacted with an engine timing chain, a shell of the piston tensioner is fixedly arranged on the shell of an engine, the shell of the piston tensioner is provided with a rotating shaft, the tensioner block is provided with a shaft hole, and the rotating shaft is inserted into the shaft hole; one end side surface of the tensioning block is in contact with the engine timing chain, and one end of the tensioning block, which is far away from the engine timing chain, is in contact with the piston of the piston tensioner; the shaft hole is positioned between the contact end of the tensioning block and the engine timing chain and the contact end of the tensioning block and the piston of the piston tensioner; the piston of the piston tensioner applies a tending force to the tensioning block, and the tending force forces the tensioning block to rotate around the rotating shaft, so that the tensioning block is kept in contact with the timing chain of the engine.

Description

Balance shaft hydraulic tensioner integrates

Technical Field

The utility model belongs to the technical field of the hydraulic pressure rises and tightly rises, specifically speaking relates to a balance shaft hydraulic pressure that integrates rises and tightly rises ware.

Background

The existing chain tensioner for the timing chain of an engine is installed on the upper part of an engine cylinder body, and a top cover of the existing chain tensioner presses a timing chain tensioning strip. The timing chain transmits power required by the engine valve mechanism, and the timing chain is gradually lengthened along with the increase of the working time of the engine, so that the valve timing is inaccurate, the working power of the engine is influenced, the performance is reduced, and the engine breaks down in the using process. The tensioner is used for properly adjusting the pressing distance of the top cover, so that the timing chain is in a tensioning state, and the engine works normally.

However, some engine timing chain systems are installed at a lower position, so that the installation space of the engine timing chain systems is limited, and the existing tensioner cannot be installed.

Disclosure of Invention

The utility model aims at providing an integrate balance shaft hydraulic pressure and rise ware, its technical problem who exists solving the background art.

In order to solve the technical problem, the purpose of the utility model is to realize like this:

an integrated balance shaft hydraulic tensioner comprises a piston tensioner and a tensioner block, wherein the tensioner block is in contact with an engine timing chain, a shell of the piston tensioner is fixedly arranged on a shell of an engine, a rotating shaft is arranged on the shell of the piston tensioner, a shaft hole is formed in the tensioner block, and the rotating shaft is inserted into the shaft hole; one end side surface of the tensioning block is in contact with the engine timing chain, and one end of the tensioning block, which is far away from the engine timing chain, is in contact with the piston of the piston tensioner; the shaft hole is positioned between the contact end of the tensioning block and the engine timing chain and the contact end of the tensioning block and the piston of the piston tensioner; the piston of the piston tensioner applies a tending force to the tensioning block, and the tending force forces the tensioning block to rotate around the rotating shaft, so that the tensioning block is kept in contact with the timing chain of the engine.

On the basis of the above scheme and as a preferable scheme of the scheme: the position of the integrated balance shaft hydraulic tensioner is located on the middle upper portion of the engine timing chain, the piston tensioner is located above the tensioning block, and a piston of the piston tensioner vertically downwards contacts with the tensioning block.

On the basis of the above scheme and as a preferable scheme of the scheme: the shaft hole is positioned in the middle of the tensioning block.

On the basis of the above scheme and as a preferable scheme of the scheme: and a chain guide groove is formed in the contact end of the tensioning block and the engine timing chain.

On the basis of the above scheme and as a preferable scheme of the scheme: the chain guide groove is arc-shaped.

On the basis of the above scheme and as a preferable scheme of the scheme: the tensioning block is provided with a reinforcing rib plate on one side departing from the chain guide groove.

On the basis of the above scheme and as a preferable scheme of the scheme: the tensioning block is hollow at multiple positions.

On the basis of the above scheme and as a preferable scheme of the scheme: the tensioning block is integrally formed.

Compared with the prior art, the utility model outstanding and profitable technological effect is: on one hand, the piston tensioner and the tensioner block are assembled into a whole through the rotating shaft, then the engine timing chain system is a part, so that the engine timing chain system can be assembled with the engine, and then the integrated balance shaft hydraulic tensioner is integrally assembled, so that the volume of the integrated balance shaft hydraulic tensioner is greatly reduced, and the problems that the installation space of some engine timing chain systems is limited due to the fact that the existing tensioner cannot be installed due to the fact that the installation positions of the engine timing chain systems are relatively low are solved; on the other hand, the balance shaft hydraulic pressure that integrates that this application rises and tightly installs just for a whole before engine assembly, then only need just can realize integrating the fixed of balance shaft hydraulic pressure rises and tightly installs through two fixed points to it is close to the well upper portion of whole timing chain system to integrate balance shaft hydraulic pressure and rises and tightly installs, more does benefit to the operation.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a perspective view of the overall structure of the present invention.

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.

An integrated balance shaft hydraulic tensioner comprises a first chain wheel 1, a second chain wheel 2, a timing chain 3, a piston tensioner 5 and a tensioner block 4, wherein the tensioner block 4 is in contact with the timing chain 3 of an engine, a shell 52 of the piston tensioner is fixedly arranged on the shell of the engine, the shell 52 of the piston tensioner is provided with a rotating shaft 55, the tensioner block 4 is provided with a shaft hole 43, and the rotating shaft 55 is inserted into the shaft hole 43; one end 42 of the tension block is in contact with the timing chain 3 of the engine, and the other end 41 of the tension block 4, which is far away from the timing chain of the engine, is in contact with the piston 51 of the piston tensioner; the shaft hole 43 is positioned between the tensioning block 4 and the contact end of the engine timing chain and the contact end of the piston tensioner; the piston 51 of the piston tensioner applies a force to the tension block 4, and the force forces the tension block 4 to rotate around the rotating shaft, so that the tension block 4 is kept in contact with the timing chain 3 of the engine, and the timing chain 3 is kept to have a sufficient tension.

Preferentially in this embodiment the position of integrating the balance shaft hydraulic tensioner is located the middle-upper part of the engine timing chain, the piston tensioner 5 is located the top of the tensioning block 4, the piston 51 of the piston tensioner vertically downwards contacts with the uppermost end of the tensioning block 4, so as to generate vertical downward pressure on the uppermost end of the tensioning block 4, and force the tensioning block 4 to rotate around the rotating shaft, so that the tensioning block is forced to be close to the timing chain 3, and then the timing chain is extruded and pushed to tension the timing chain.

Further preferably, the shaft hole 43 is located in the middle of the tension block 4.

Preferably, a chain guide groove 421 is formed at a contact end of the tension block 4 and the engine timing chain, and guide groove flanges are formed at two sides of the chain guide groove 421, so that the timing chain 3 is limited in the chain guide groove 421, and then the chain guide groove is swung or disengaged. In order to further make the chain run smoother, the chain guiding groove 421 is preferably arc-shaped in this embodiment.

In order to increase the strength of the tension block, especially the strength in the direction of the applied force, considering that the tension block 4 will be subjected to a large applied force during the operation of the timing chain system, the tension block 4 in this embodiment preferably has a reinforcing rib 44 on the side facing away from the chain guide 421. In consideration of reducing the weight of the tensioning block pair, the tensioning block 4 in the embodiment is hollow 45 at multiple positions.

Further, in this embodiment, it is preferable that the tension block 4 is integrally formed, for example, integrally injection-molded.

Therefore, the piston tensioner and the tensioner block are assembled into a whole through the rotating shaft, and then the engine timing chain system is a part, so that the engine timing chain system can be assembled with the engine at present, and then the integrated balance shaft hydraulic tensioner is integrally assembled, so that the volume of the integrated balance shaft hydraulic tensioner is greatly reduced, and the problems that the installation space of some engine timing chain systems is limited due to low installation position and the existing tensioner cannot be installed are solved; on the other hand, the balance shaft hydraulic pressure that integrates that this application rises and tightly installs just for a whole before engine assembly, then only need just can realize integrating the fixed of balance shaft hydraulic pressure rises and tightly installs through two fixed points to it is close to the well upper portion of whole timing chain system to integrate balance shaft hydraulic pressure and rises and tightly installs, more does benefit to the operation.

The above-mentioned embodiment is only the preferred embodiment of the present invention, and does not limit the protection scope of the present invention according to this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a balance shaft hydraulic pressure tensioner integrates, includes piston tensioner and tight piece that rises, the tight piece that rises contacts its characterized in that with engine timing chain: the shell of the piston tensioner is fixedly arranged on the shell of the engine, the shell of the piston tensioner is provided with a rotating shaft, the tensioning block is provided with a shaft hole, and the rotating shaft is inserted into the shaft hole; one end side surface of the tensioning block is in contact with the engine timing chain, and one end of the tensioning block, which is far away from the engine timing chain, is in contact with the piston of the piston tensioner; the shaft hole is positioned between the contact end of the tensioning block and the engine timing chain and the contact end of the tensioning block and the piston of the piston tensioner; the piston of the piston tensioner applies a tending force to the tensioning block, and the tending force forces the tensioning block to rotate around the rotating shaft, so that the tensioning block is kept in contact with the timing chain of the engine.

2. The integrated balance shaft hydraulic tensioner as claimed in claim 1, wherein: the position of the integrated balance shaft hydraulic tensioner is located on the middle upper portion of the engine timing chain, the piston tensioner is located above the tensioning block, and a piston of the piston tensioner vertically downwards contacts with the tensioning block.

3. The integrated balance shaft hydraulic tensioner as claimed in claim 1, wherein: the shaft hole is positioned in the middle of the tensioning block.

4. The integrated balance shaft hydraulic tensioner as claimed in claim 1, wherein: and a chain guide groove is formed in the contact end of the tensioning block and the engine timing chain.

5. The integrated balance shaft hydraulic tensioner as claimed in claim 4, wherein: the chain guide groove is arc-shaped.

6. The integrated balance shaft hydraulic tensioner as claimed in claim 5, wherein: the tensioning block is provided with a reinforcing rib plate on one side departing from the chain guide groove.

7. The integrated balance shaft hydraulic tensioner as claimed in claim 1, wherein: the tensioning block is hollow at multiple positions.

8. The integrated balance shaft hydraulic tensioner as claimed in any one of claims 1 to 7, wherein: the tensioning block is integrally formed.