CN216240913U

CN216240913U - Silicone oil clutch

Info

Publication number: CN216240913U
Application number: CN202121697496.4U
Authority: CN
Inventors: 崔华南; 楼新娜; 周志杰
Original assignee: Warner Shenglong Ningbo Co ltd
Current assignee: Warner Shenglong Ningbo Co ltd
Priority date: 2021-07-23
Filing date: 2021-07-23
Publication date: 2022-04-08
Anticipated expiration: 2031-07-23

Abstract

The utility model discloses a silicone oil clutch, which comprises a rotating shaft, wherein a shell and a driving plate are installed on the rotating shaft, the front side of the shell is connected with a front cover, working cavities are formed between the two sides of the driving plate and the front cover as well as between the two sides of the driving plate and the shell, and an oil storage cavity is arranged between the driving plate and the front cover; the oil storage cavity is internally provided with a middle partition plate which is used for dividing the oil storage cavity into a front cavity and a rear cavity along the axial direction, the side wall of the rear cavity is provided with an oil outlet through which silicone oil flows to the working cavity and a valve plate for controlling the opening and closing of the oil outlet, the middle partition plate is provided with at least one communicating hole which is used for communicating the front cavity and the rear cavity, and the communicating hole and the oil outlet are not on the same straight line along the radial direction; the silicone oil clutch also comprises an oil return channel for returning the silicone oil in the working cavity to the front oil storage chamber. The silicone oil clutch disclosed by the utility model can realize better oil storage even in the shutdown state of an engine, and correspondingly reduces the silicone oil in the oil storage cavity from entering the working cavity, thereby improving the cold start performance.

Description

Silicone oil clutch

Technical Field

The utility model relates to the field of clutches, in particular to a silicone oil clutch.

Background

With the domestic promotion of the national emission standards of the fifth country and the sixth country, the commercial vehicle puts higher requirements on the electric control silicone oil clutch fan. Such as improved cooling capacity, reduced power consumption, reduced fan noise, etc.

The existing electric control clutch is designed into a power-off open type in order to ensure that the clutch is meshed with a fan at a high rotating speed when power is off accidentally. When the engine is shut down in this kind of structure, when the oil outlet of oil storage chamber was located the opening orientation down just, the oil outlet can be flowed out to the silicon oil in the oil storage chamber under self action of gravity, flows to the working chamber along an oil channel, and the clutch is in the engaged state when leading to the engine to start next time, because the fan rotational speed is high, leads to the unable stable control of engine temperature easily, causes that the engine temperature is high or the oil consumption is high, fan noise is big, and is big to cooling system's impact.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the utility model provides the silicone oil clutch which can realize better oil storage under the stop state of the engine and correspondingly reduce the silicone oil in the oil storage cavity from entering the working cavity, thereby improving the cold start performance.

The utility model adopts a technical scheme that: the silicone oil clutch comprises a rotating shaft, wherein a shell and an active plate are mounted on the rotating shaft, a front cover is connected to the front side of the shell, working cavities are formed between the front side and the back side of the active plate and between the front cover and the shell, an oil storage cavity is formed between the active plate and the front cover, a middle partition plate is arranged in the oil storage cavity and used for dividing the oil storage cavity into a front oil storage chamber and a rear oil storage chamber along the axial direction, an oil outlet hole for silicone oil to flow to the working cavities and a valve plate for controlling the oil outlet hole to be opened and closed are arranged on the side wall of the rear oil storage chamber, and the silicone oil clutch further comprises an oil return channel for silicone oil in the working cavity to return to the front oil storage chamber;

the middle partition plate is provided with at least one communication hole for communicating the front oil storage chamber with the rear oil storage chamber, and the communication hole and the oil outlet hole are not in the same straight line along the radial direction.

Compared with the prior art, the silicone oil clutch has the following advantages:

in the silicone oil clutch, the middle partition plate is arranged in the oil storage cavity, so that the oil storage cavity is divided into a front oil storage chamber and a rear oil storage chamber, the front oil storage chamber and the rear oil storage chamber are axially separated, the front oil storage chamber is communicated with the working cavity through the oil return channel, the rear oil storage chamber is communicated to the working cavity through the oil outlet, the oil outlet is controlled to be opened and closed through the corresponding valve plate, and silicone oil in the front oil storage chamber can return to the rear oil storage chamber through the corresponding communication hole, so that oil supply and oil return circulation is realized; in addition, due to the corresponding position relation between the communication hole and the oil outlet hole arranged on the middle partition plate, a certain amount of silicone oil can be stored in the front oil storage chamber no matter which direction the oil outlet hole faces when the engine is stopped, so that the flow rate of the silicone oil flowing into the working chamber when the engine is stopped is better reduced, and the cold starting performance of the engine is improved when the engine is started next time.

Further, the angle alpha between the communication hole and the oil outlet hole is 90-150 degrees or 210-270 degrees. When the engine is stopped and the oil outlet faces any angle, corresponding silicone oil can be stored in the front oil storage chamber due to the arrangement of the position of the communication hole in the structure.

Still further, the number of the communication holes is two, and the two communication holes are symmetrically distributed along the radial direction. After the improvement, the silicone oil in the oil storage chamber before the engine operation structure can better enter into the back oil storage chamber, and then is conveyed to the working cavity through the oil outlet, so that the circulation process of the whole silicone oil is smoother, and the performance of the clutch is improved.

As an improvement, a convex cover plate is connected to the front side wall of the active plate, so that an oil storage cavity is formed between the active plate and the cover plate; and the cover plate is provided with an oil return hole communicated with the oil return channel. In the structure, the whole cavity does not need to be arranged on the driving plate in the structure of the oil storage cavity, only one cover plate is connected to the end face of the driving plate, the front side wall of the driving plate serves as a side wall of the oil storage cavity, parts are reduced, cost is reduced, and the structure is simpler.

And the driving plate is provided with a front cover, the front side wall of the driving plate is convexly provided with an annular boss matched with the front cover, the inner side wall of the annular boss is provided with an assembling groove, and the radial outer side of the cover plate is assembled in the assembling groove.

As a preferable structure, a concave cavity which is concave towards one side of the shell is arranged on the inner side of the front side wall of the driving plate in the radial direction of the annular boss, the middle partition plate is in a circular ring structure with a through hole in the middle, the outer side of the middle partition plate in the radial direction is assembled in the assembling groove, and the inner side of the middle partition plate in the radial direction is connected with the driving plate; the middle partition plate and the concave cavity form the rear oil storage chamber. In the structure, under the condition that other components are not required to be added, the existing rear oil storage chamber is formed by the shape design of the structure of the driving plate and the effect of the middle partition plate, so that the structure of the clutch is simpler and more reasonable.

As another preferable structure, a concave cavity which is concave towards one side of the shell is arranged on the inner side of the front side wall of the driving plate in the radial direction of the annular boss, the middle partition plate is of a complete disc structure, and the outer side of the middle partition plate in the radial direction is assembled in the assembling groove; the middle partition plate and the concave cavity form the rear oil storage chamber.

In another improvement, the intermediate baffle plate is provided with an annular groove which is concave towards one side of the concave cavity. After adopting above-mentioned improvement structure for the volume of preceding oil storage chamber increases, and the volume of back oil storage chamber reduces, and when better control engine shut down, the silicon oil flow that flows to the working chamber, thereby better improvement cold start performance.

Drawings

FIG. 1 is a schematic diagram of a half-section structure of a silicone oil clutch with double oil storage cavities.

Fig. 2 is an enlarged schematic diagram at X in fig. 1.

Fig. 3 is a schematic structural diagram of a middle partition plate according to a first embodiment of the present invention.

FIG. 4 is a schematic diagram of a half-section structure of a second embodiment of the silicone oil clutch with two oil storage chambers according to the utility model.

Fig. 5 is a schematic structural view of a middle partition plate in the second embodiment of the present invention.

Wherein shown in the figure:

1-rotating shaft, 2-shell, 3-driving plate, 4-front cover, 5-oil outlet, 6-valve plate, 7-middle partition plate, 7.1-communicating hole, 7.2-annular groove, 8-front oil storage chamber, 9-rear oil storage chamber, 10-cover plate, 10.1-oil return hole, 11-annular boss, 11.1-assembly groove, 12-concave cavity and 13-oil return cavity.

Detailed Description

The utility model is further described with reference to the following figures and detailed description.

In the description of the present invention, it should be noted that the terms "two sides", "outside", "inside", "front, back", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but 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 invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the term "connected" is to be interpreted broadly, e.g. as a fixed connection, a detachable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The first embodiment is as follows:

as shown in fig. 1 and 2, the utility model provides a silicone oil clutch with double oil storage cavities, which comprises a rotating shaft 1, wherein a shell 2 and a driving plate 3 are installed on the rotating shaft 1, the front side of the shell 2 is connected with a front cover 4, two side walls of the radial outer end of the driving plate 3 are respectively provided with a first labyrinth oil groove, and second labyrinth oil grooves matched with the first labyrinth oil grooves are correspondingly arranged on the front cover 4 and the installation end surface of the shell 2, so that working cavities are formed between the front side and the rear side of the driving plate 3 and the installation end surfaces of the front cover 4 and the shell 2; in addition, an oil storage cavity is arranged between the driving plate 3 and the front cover 4, a middle partition plate 7 is arranged in the oil storage cavity and used for dividing the oil storage cavity into a front oil storage chamber 8 and a rear oil storage chamber 9 along the axial direction, an oil outlet 5 communicated with the working cavity and a valve plate 6 for controlling the opening and closing of the oil outlet 5 are arranged on the side wall of the rear oil storage chamber 9, an oil return channel for communicating the front oil storage chamber 8 with the working cavity is arranged on the front cover 4, the structure of the oil return channel is an existing structure, and specific structural description about the oil return channel can be found in reference CN212614989, and description thereof is omitted here. In the structure, at least one communication hole 7.1 for communicating the front oil storage chamber 8 and the rear oil storage chamber 9 is arranged on the middle partition plate 7, and the communication hole 7.1 and the oil outlet hole 5 are not on the same straight line along the radial direction.

Because the oil storage chamber has been divided into two cavities of preceding oil storage chamber 8 and back oil storage chamber 9 in the above-mentioned structure to preceding oil storage chamber 8 and back oil storage chamber 9 are upwards separated along the axial, wherein preceding oil storage chamber 8 communicates with the working chamber through oil return channel, back oil storage chamber 9 with through oil outlet 5 intercommunication to the working chamber, and oil outlet 5 carries out the control that opens and shuts through corresponding valve block 6, the silicone oil in preceding oil storage chamber 8 can get back to back oil storage chamber 9 through corresponding intercommunicating pore 7.1 again, thereby realize the circulation of an oil feeding, oil return. In the process, due to the existence of the front oil storage chamber 8, the silicone oil returned from the working chamber does not flow to the rear oil storage chamber 9 completely, and part of the silicone oil is temporarily stored in the front oil storage chamber 8, so that when the engine is stopped and the oil outlet 5 is located at the downward position, the silicone oil can be effectively reduced from flowing to the working chamber, and the cold start performance is improved.

In this embodiment, it is preferable that the angle α between the communication hole 7.1 and the oil outlet hole 5 is 90 ° to 150 ° or 210 ° to 270 °. Specifically, as shown in fig. 3, the number of the communication holes 7.1 is two, and the two communication holes 7.1 are symmetrically distributed along the radial direction of the intermediate partition 7. More specifically, the angle α between the two communication holes 7.1 and the oil outlet 5 is preferably two positions corresponding to 150 ° and 210 °, so that after the arrangement, when the engine is stopped and the oil outlet 5 is in the downward position, more silicone oil can be stored in the front oil storage chamber 8, and the silicone oil in the rear oil storage chamber 9 is prevented from entering the working chamber as much as possible in the stopped state; when the engine is started again, the silicone oil in the front oil reservoir chamber 8 can also be quickly replenished into the rear oil reservoir chamber 9 through the two communication holes 7.1, and then the silicone oil is supplied to the working chamber.

In this embodiment, as shown in fig. 1 and 3, a convex cover plate 10 is connected to the front side wall of the active plate 3, so that an oil storage cavity is formed between the active plate 3 and the cover plate 10; and an oil return hole 10.1 communicated with the oil return channel is formed in the cover plate 10. Specifically, as shown in fig. 1, an oil return cavity 13 is formed in the middle of the front cover 4, the oil return cavity 13 is communicated with an oil return channel, an annular boss extending towards the front oil storage cavity 8 is formed at an opening end of the oil return cavity 13, an oil return hole 10.1 formed in the front side wall of the corresponding cover plate 10 is also a circular hole, and the annular boss can be matched with the circular hole in a relatively rotating manner to achieve oil return.

As shown in fig. 2, an annular boss 11 for matching with the front cover 4 is convexly arranged on the front side wall of the driving plate 3, a fitting groove 11.1 is arranged on the inner side wall of the annular boss 11, and the radial outer side of the cover plate 10 is fitted in the fitting groove 11.1.

As shown in fig. 1, a concave cavity 12 recessed towards one side of the housing 2 is arranged on the inner side of the front side wall of the driving plate 3 in the radial direction of the annular boss 11, in the embodiment, the middle partition plate 7 is in a circular ring structure with a through hole in the middle, the outer side of the middle partition plate 7 in the radial direction is assembled in the assembling groove 11.1, and the inner side of the middle partition plate 7 in the radial direction is connected with the driving plate 3, so that a rear oil storage chamber 9 is formed between the middle partition plate 7 and the concave cavity 12. And in the structure, the middle partition 7 and the radial outer edge of the cover plate 10 are stacked together and then are simultaneously assembled in the assembling groove 11.1, so that the installation is more convenient.

On the other hand, the annular groove 7.2 which is concave towards one side of the concave cavity 12 is formed in the middle partition plate 7, so that the volume of the front oil storage chamber 8 can be increased, and the volume of the rear oil storage chamber 9 is reduced, namely, the flow of silicone oil flowing from the rear oil storage chamber 9 to the working cavity when the engine is stopped is effectively reduced, and the problems of unstable temperature control, oil waste and noise during cold starting are solved.

Example two:

the structure of the present embodiment is basically the same as that of the embodiment, and the only difference is the structure of the intermediate partition 7.

Specifically, as shown in fig. 4, the intermediate partition 7 in this embodiment is a complete disk structure, the middle of which is not provided with a through hole, and the connection between the intermediate partition 7 and the driving plate 3 is fixed only by the connection between the radial outer side of the intermediate partition 7 and the fitting groove 11.1, so that the rear oil reservoir 9 is formed between the intermediate partition 7 and the cavity 12. With this arrangement, the connection of the intermediate partition 7 to the driving plate 3 is simpler, and the risk of leakage at the connection of the radially inner side of the intermediate partition 7 to the driving plate 3 is also avoided as in the structure of the embodiment.

As shown in fig. 5, preferably, four communication holes 7.1 are provided on the intermediate partition 7, and the four communication holes 7.1 are divided into two groups, two communication holes 7.1 of each group are first adjacent, and the two groups of communication holes 7.1 are symmetrically distributed along the radial direction of the intermediate partition 7; and the approximate angle alpha between the two groups of communication holes 7.1 and the oil outlet 5 is the position corresponding to 150 degrees and 210 degrees, so that the silicone oil in the front oil storage chamber 8 can better enter the rear oil storage chamber 9 in the running process of the engine after being arranged, and then flows to the working cavity from the oil outlet 5, the silicone oil circulation in the whole process is smoother, and the variable speed adjustment of the clutch is more accurate.

The foregoing has described preferred embodiments of the present invention and is not to be construed as limiting the claims. The present invention is not limited to the above embodiments, and the specific structure thereof is allowed to vary, and various changes made within the scope of the claims of the present invention are within the scope of the present invention.

Claims

1. The utility model provides a silicon oil clutch, includes pivot (1), install casing (2) and initiative board (3) in pivot (1), the front side of casing (2) is connected with protecgulum (4), form the working chamber between both sides and protecgulum (4), casing (2) around initiative board (3), initiative board (3) with be equipped with oil storage chamber, its characterized in that between protecgulum (4): the oil storage cavity is internally provided with a middle partition plate (7) which is used for dividing the oil storage cavity into a front oil storage chamber (8) and a rear oil storage chamber (9) along the axial direction, the side wall of the rear oil storage chamber (9) is provided with an oil outlet (5) for silicone oil to flow to the working cavity and a valve plate (6) for controlling the opening and closing of the oil outlet (5), the middle partition plate (7) is provided with at least one communicating hole (7.1) for communicating the front oil storage chamber (8) with the rear oil storage chamber (9), and the communicating hole (7.1) and the oil outlet (5) are not on the same straight line along the radial direction; the silicone oil clutch also comprises an oil return channel for returning the silicone oil in the working cavity to the front oil storage chamber (8).

2. The silicone oil clutch according to claim 1, characterized in that: the angle alpha between the communication hole (7.1) and the oil outlet hole (5) is 90-150 degrees or 210-270 degrees.

3. The silicone oil clutch according to claim 2, characterized in that: the number of the communication holes (7.1) is two, and the two communication holes (7.1) are symmetrically distributed along the radial direction.

4. The silicone oil clutch according to claim 1, characterized in that: a convex cover plate (10) is connected to the front side wall of the active plate (3), so that an oil storage cavity is formed between the active plate (3) and the cover plate (10); and an oil return hole (10.1) communicated with the oil return channel is formed in the cover plate (10).

5. The silicone oil clutch according to claim 4, characterized in that: an annular boss (11) used for being matched with the front cover (4) is arranged on the front side wall of the driving plate (3) in a protruding mode, an assembling groove (11.1) is formed in the inner side wall of the annular boss (11), and the radial outer side of the cover plate (10) is assembled in the assembling groove (11.1).

6. The silicone oil clutch according to claim 5, characterized in that: a concave cavity (12) which is concave towards one side of the shell (2) is arranged on the radial inner side of the annular boss (11) on the front side wall of the driving plate (3), the middle partition plate (7) is of a circular structure with a through hole in the middle, the radial outer side of the middle partition plate (7) is assembled in an assembling groove (11.1), and the radial inner side of the middle partition plate (7) is connected with the driving plate (3); the middle clapboard (7) and the concave cavity (12) form the rear oil storage chamber (9).

7. The silicone oil clutch according to claim 5, characterized in that: a concave cavity (12) which is concave towards one side of the shell (2) is arranged on the radial inner side of the annular boss (11) on the front side wall of the driving plate (3), the middle partition plate (7) is of a complete disc structure, and the radial outer side of the middle partition plate (7) is assembled in the assembling groove (11.1); the middle clapboard (7) and the concave cavity (12) form the rear oil storage chamber (9).

8. The silicone oil clutch according to claim 6 or 7, characterized in that: the middle clapboard (7) is provided with an annular groove (7.2) which is concave towards one side of the concave cavity (12).