CN217300700U

CN217300700U - Temperature control silicone oil clutch capable of being started quickly

Info

Publication number: CN217300700U
Application number: CN202220897697.7U
Authority: CN
Inventors: 刘敦绿; 张绍滢; 胡志刚; 柯彬彬
Original assignee: Suzhou Rising Auto Parts Co ltd
Current assignee: Suzhou Rising Auto Parts Co ltd
Priority date: 2022-04-18
Filing date: 2022-04-18
Publication date: 2022-08-26
Anticipated expiration: 2032-04-18

Abstract

The utility model discloses a control by temperature change silicon oil clutch of quick start, it includes: an active component; the driven assembly comprises a shell which is rotatably sleeved on the driving shaft, a cover body which is covered on the shell and can synchronously rotate along with the shell, a driven plate which is fixed on the inner wall of the cover body and is provided with at least one oil outlet, and a rotating mechanism which is arranged on the cover body and is matched with the oil outlet; the driving plate is arranged between the shell and the cover body, the cover body is provided with a plurality of second tooth grooves matched with the first tooth grooves, an oil storage chamber is formed between the driven plate and the cover body, the plurality of the first tooth grooves and the plurality of the second tooth grooves form a working chamber, and at least one set of oil return channels communicated with the working chamber are formed in the cover body. The starting speed and the coupling speed of the clutch are improved, the response capability of the clutch is enhanced, and the energy consumption is reduced.

Description

Temperature control silicone oil clutch capable of being started quickly

Technical Field

The utility model belongs to the technical field of automobile engine cooling system part, a control by temperature change silicon oil clutch is related to, especially, relate to a control by temperature change silicon oil clutch of quick start.

Background

At present, most of the existing temperature control silicone oil clutches open an oil outlet through a valve plate, and silicone oil in an oil storage cavity enters a tooth socket of a working cavity through the oil outlet under the action of centrifugal force; the end cover and the shell of the clutch are driven to rotate along with the driving plate by the viscous shearing force of the silicone oil, so that the fan fixed on the shell is driven to rotate; after the oil outlet is closed by the valve plate, silicone oil in the oil storage cavity does not enter the tooth grooves of the working cavity any more, and meanwhile, the silicone oil in the tooth grooves of the working cavity flows back into the oil storage cavity through the oil return channel under the action of centrifugal force, so that the silicone oil in the tooth grooves of the working cavity is reduced, the torque transmitted by the clutch is reduced, the slip is increased, and the rotating speed of the fan is reduced. In the working process, the oil return channel of the temperature control silicone oil clutch is always in a normally open state, so that when the clutch is in a stop state, silicone oil in the oil storage cavity of the temperature control silicone oil clutch enters the oil return cavity on the outermost side of the groove along the oil return channel under the action of gravity, and the oil quantity in the oil storage cavity is small when the clutch is started, so that the fan cannot be driven to rotate quickly; meanwhile, the centrifugal force of the clutch in a low-speed rotating state is small, and the silicone oil in the oil return cavity outside the tooth socket cannot return to the oil storage cavity quickly, so that the coupling speed of the clutch is greatly reduced, the reaction capacity of the clutch is reduced, and the energy consumption of an automobile is increased.

Disclosure of Invention

An object of the utility model is to provide a control by temperature change silicon oil clutch of quick start to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a temperature-controlled silicone oil clutch with quick start comprises:

the driving assembly comprises a driving shaft and a driving plate which is sleeved on the driving shaft and can synchronously rotate along with the driving shaft, and a plurality of first tooth sockets are arranged at the edge of the surface of the driving plate;

the driven assembly comprises a shell which is rotatably sleeved on the driving shaft, a cover body which is covered on the shell and can synchronously rotate along with the shell, a driven plate which is fixed on the inner wall of the cover body and is provided with at least one oil outlet, and a rotating mechanism which is arranged on the cover body and is matched with the oil outlet; the driving plate is arranged between the shell and the cover body, the cover body is provided with a plurality of second tooth grooves matched with the first tooth grooves, an oil storage chamber is formed between the driven plate and the cover body, a working cavity is formed between the plurality of first tooth grooves and the plurality of second tooth grooves, and at least one group of oil return channels communicated with the working cavity are formed in the cover body;

the rotating mechanism comprises a temperature sensing element arranged on the outer side of the cover body, a valve sheet shaft with one end connected with the temperature sensing element and the other end penetrating through the cover body, and a valve sheet which is abutted against the surface of the driven plate and can rotate relative to the driven plate under the driving of the valve sheet shaft so as to shield or avoid the oil outlet;

the driven assembly further comprises an oil return baffle plate which is formed on the inner wall of the cover body and connected with the driven plate, and an oil return guide groove which is communicated with the oil storage chamber and the oil return channel is formed between the oil return baffle plate and the inner wall of the cover body.

Preferably, the oil return baffle is annular.

Furthermore, an oil return groove which is located on the outer side of the working cavity and matched with the working cavity is formed in the driving plate or the cover body, and the oil return groove is communicated with the oil return channel.

Preferably, the rotating mechanism further comprises an installation bayonet which is installed on the outer side surface of the cover body and connected with the temperature sensing element.

Preferably, the housing is rotatably mounted to the drive shaft by a bearing.

Optimally, a plurality of radiating ribs are arranged on the surface of the cover body deviating from the driving plate.

Optimally, the other end of the valve plate shaft is arranged at the center of the valve plate.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses control by temperature change silicon oil clutch of quick start forms the oil return guide way through addding the oil return baffle that meets with the driven plate on the inner wall of lid, has overcome the defect that oil return channel is in normally open state all the time in conventional clutch's the structure, under the condition that does not change the clutch function, can prevent effectively that the interior silicon oil of oil storage chamber from oozing from oil return channel under clutch quiescent condition to improve clutch start-up speed, coupling speed, reinforcing clutch response ability, reduce the energy consumption.

Drawings

FIG. 1 is a schematic structural view of a temperature-controlled silicone oil clutch which is rapidly started according to the present invention;

fig. 2 is a schematic view of a part of the structure of the temperature-controlled silicone oil clutch which is started quickly.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The quick-start temperature-controlled silicone oil clutch shown in fig. 1 and 2 mainly comprises a driving component 1 and a driven component 2 which are matched with each other.

The driving assembly 1 includes a driving shaft 11, a driving plate 12, and the like. The driving shaft 11 is directly connected with an engine and can rotate along with the engine; in the present embodiment, the diameter of the driveshaft 11 decreases from one end to the other end in the direction of the axis thereof, so that a plurality of steps (which can be used to mount other parts such as bearings) are formed on the driveshaft 11. The driving plate 12 is sleeved on the driving shaft 11 and fixed with the driving shaft 11, so that when the driving shaft 11 rotates, the driving plate 12 can synchronously rotate along with the driving shaft; in this embodiment, the driving plate 12 is installed at the end (defined as the outer end) of the driving shaft 11 with a smaller diameter, and they are fixedly connected by a conventional fastening member such as a spline, so that the driving plate 12 rotates synchronously when the driving shaft 11 rotates. A plurality of first tooth grooves 121 are formed at the edge of the surface of the driving plate 12 (i.e., the plurality of first tooth grooves are formed at the edge of the surface of the driving plate 12 facing away from the driving shaft 11).

The driven assembly 2 includes a cover body 21, a driven plate 22, a rotation mechanism 23, an oil storage chamber 24, an oil return damper 25, a housing 28, and the like. The housing 28 is rotatably mounted on the axle shaft 11 in a manner that is conventional, such as by bearings, so that rotation of the axle shaft 11 does not affect the housing 28. The cover body 21 is covered on the shell 28 and can synchronously rotate along with the shell, and forms a certain interval with the outer end part of the driving shaft 11; in the present embodiment, the edges of the cover 21 and the housing 28 are fixed by riveting, welding, etc. and sealed by a sealing ring, so that the cover 21 and the housing 28 move synchronously (i.e. an accommodating space is formed between the cover 21 and the housing 28, and the active plate 12 is located in the accommodating space; i.e. the active plate 12 is disposed between the housing 28 and the cover 21). The driven plate 22 is fixed on the inner wall of the cover body 21 (conventional riveting can be adopted for fixing) and is provided with at least one oil outlet 221 (the specific number and position are determined according to actual requirements), so that the driven plate 22 is also positioned in the accommodating space and is opposite to the driving plate 12; in the present embodiment, the oil outlet hole 221 is one and near the edge of the driven plate 22.

The rotating mechanism 23 is installed on the cover body 21 and is matched with the oil outlet hole 221, and can shield or avoid the oil outlet hole 221 according to the change of temperature. The rotating mechanism 23 comprises a temperature sensing element 234 arranged outside the cover body 21 (the temperature sensing element 234 can be formed by attaching bimetallic strips with different thermal coefficients together, and the structure can be the conventional strip type or coil spring type, in the embodiment, the temperature sensing element 234 is a coil spring type, one end of which is connected with a valve strip shaft 231 described below, and the other end of which is connected to the cover body 21 after being wound for a plurality of turns), a valve strip shaft 231, one end of which is connected with the temperature sensing element 234 and the other end of which penetrates through the cover body 21 (namely, the other end of the valve strip shaft 231 points to the driving shaft 11 through the cover body 21), and a valve strip 232 which abuts against the surface of the driven plate 22 and can rotate relative to the driven plate 22 under the driving of the valve strip shaft 231 to shield or avoid the oil outlet 221; in this embodiment, the other end of the valve plate shaft 231 may be square to connect with the valve plate 232 (to be installed at the center of the valve plate 232) through a square hole, and when the valve plate shaft 231 rotates with its own axis as a rotation axis, the valve plate 232 is driven to rotate synchronously relative to the driven plate 22. In the present embodiment, the cover body 21 has a plurality of second tooth grooves 211 matched with the first tooth grooves 121, so that a working cavity is formed between the plurality of first tooth grooves 121 and the plurality of second tooth grooves 211; an oil storage chamber 24 is formed between the driven plate 22 and the cover body 21, and at least one set of oil return channels 212 communicated with the working chamber is formed in the cover body 21 (the specific number of the oil return channels 212 can be determined according to actual requirements, and one end of each oil return channel is communicated with the oil storage chamber 24).

The driven assembly 2 further comprises an oil return baffle 25 formed on the inner wall of the cover body 21, wherein the oil return baffle 25 extends towards the driven plate 22 and is connected with the driven plate 22; it is preferable to achieve sufficient contact of the oil return baffle 25 and the driven plate 22 without leakage. An oil return guide groove 251 (shown in fig. 2) communicating with the oil storage chamber 24 and the oil return passage 212 is formed between the oil return baffle 25 and the inner wall of the cover body 21 for guiding the silicone oil. The structure of the oil return guide groove 251 is formed by the oil return baffle 25 and the annular side wall of the oil storage chamber 24, so that under the condition of not changing the function of the clutch, silicone oil in the oil storage cavity can be effectively prevented from seeping out from an oil return channel under the static state of the clutch, the starting speed and the coupling speed of the clutch are improved, the response capability of the clutch is enhanced, and the energy consumption is reduced. The oil return baffle 25 is preferably annular.

The working principle of the temperature control silicone oil clutch capable of being started quickly is as follows:

the driving shaft 11 is directly connected with the engine and can rotate along with the engine; the driving plate 12 is directly connected with the driving shaft 11, the cover body 21 and the shell body 28 are connected with the driving shaft 11 through a bearing, the driving plate 12 is located between the shell body 28 and the cover body 21, a first tooth groove 121 is formed in the edge of the surface, opposite to the cover body 21, of the driving plate 12, the cover body 21 is provided with a second tooth groove 211 matched with the first tooth groove 121, and therefore a working cavity is formed between the plurality of first tooth grooves 121 and the plurality of second tooth grooves 211; the silicone oil in the oil storage chamber 24 is used as a medium for transferring force, after the oil outlet 221 is opened by the valve sheet 232 (the temperature sensing element 234 is heated and deformed to drive the valve sheet shaft 231 to rotate, and further drive the valve sheet 232 to rotate to open the oil outlet 221), the silicone oil enters the working chamber from the oil storage chamber 24, and a huge shearing force is generated through the structure and area of the tooth socket and the viscosity of the silicone oil, so that the driving plate 12 drives the shell 28 and the cover body 21 to rotate along with the driving shaft 11, the silicone oil in the tooth socket moves to the periphery of the tooth socket due to the centrifugal force caused by rotation, and the silicone oil is squeezed into the oil return channel 212 by the pressure generated under the action of the centrifugal force and returns to the oil storage chamber 24 to form circulation; after the oil outlet 221 is closed by the valve plate 232, the silicone oil in the tooth grooves gradually returns to the oil storage chamber 24, the shearing force generated after the silicone oil between the tooth grooves is reduced, the rotating speed of the shell 28 and the cover body 21 is reduced, and the speed difference between the shell 28 and the driving plate 12 is increased.

In this embodiment, the driving plate 12 or the cover 21 (or the driving plate 12 and the cover 21) are provided with an oil return groove 29 located outside the working chamber and matching with the working chamber (i.e. the oil return groove 29 is communicated with the working chamber), so that the oil return groove 29 is communicated with the oil return passage 212; thus, the silicone oil in the tooth socket will move to the periphery of the tooth socket due to the centrifugal force caused by rotation until the silicone oil moves to the outermost oil return groove 29, and the pressure generated by the centrifugal force will squeeze the silicone oil into the oil return channel.

The rotating mechanism 23 further includes a mounting notch 233 mounted on an outer side surface (i.e., a side surface facing away from the driving plate 12) of the cover 21 and connected to the temperature sensing element 234, and at this time, the other end of the temperature sensing element 234 may be wound multiple times and then connected to the mounting notch 233. A plurality of heat dissipation ribs 26 are disposed on a surface (i.e., the aforementioned outer side surface) of the cover body 21 away from the driving plate 12, and the heat dissipation ribs 26 are disposed around the mounting bayonet 233 and spaced along the circumferential direction of the cover body 21.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A temperature-controlled silicone oil clutch with quick start comprises:

the driving component (1) comprises a driving shaft (11) and a driving plate (12) which is sleeved on the driving shaft (11) and can synchronously rotate along with the driving shaft, wherein a plurality of first tooth grooves (121) are formed in the edge of the surface of the driving plate (12);

the driven assembly (2) comprises a shell (28) which is rotatably sleeved on the driving shaft (11), a cover body (21) which is covered on the shell (28) and can synchronously rotate along with the shell, a driven plate (22) which is fixed on the inner wall of the cover body (21) and is provided with at least one oil outlet (221), and a rotating mechanism (23) which is installed on the cover body (21) and is matched with the oil outlet (221); the driving plate (12) is arranged between the shell (28) and the cover body (21), the cover body (21) is provided with a plurality of second tooth grooves (211) matched with the first tooth grooves (121), an oil storage chamber (24) is formed between the driven plate (22) and the cover body (21), a working cavity is formed between the plurality of first tooth grooves (121) and the plurality of second tooth grooves (211), and at least one set of oil return channels (212) communicated with the working cavity is formed in the cover body (21);

the rotating mechanism (23) comprises a temperature sensing element (234) arranged on the outer side of the cover body (21), a valve sheet shaft (231) with one end connected with the temperature sensing element (234) and the other end penetrating through the cover body (21), and a valve sheet (232) which is abutted against the surface of the driven plate (22) and can rotate relative to the driven plate (22) under the driving of the valve sheet shaft (231) to shield or avoid the oil outlet (221);

the method is characterized in that: driven subassembly (2) still including form on the inner wall of lid (21) and with oil return baffle (25) that driven plate (22) meet, oil return baffle (25) with form between lid (21) inner wall with oil storage chamber (24) with communicating oil return guide way (251) of oil return passageway (212).

2. The rapidly starting temperature controlled silicone oil clutch as set forth in claim 1, wherein: the oil return baffle (25) is annular.

3. The rapidly starting temperature controlled silicone oil clutch as set forth in claim 1 or 2, characterized in that: an oil return groove (29) which is positioned outside the working cavity and matched with the working cavity is formed in the driving plate (12) or the cover body (21), and the oil return groove (29) is communicated with the oil return channel (212).

4. The rapidly starting temperature controlled silicone oil clutch as set forth in claim 1, wherein: the rotating mechanism (23) further comprises an installation bayonet (233) which is installed on the outer side surface of the cover body (21) and connected with the temperature sensing element (234).

5. The rapidly starting temperature controlled silicone oil clutch as set forth in claim 1, wherein: the housing (28) is rotatably mounted on the drive shaft (11) by means of a bearing (27).

6. The rapidly starting temperature controlled silicone oil clutch as set forth in claim 1, wherein: a plurality of heat dissipation ribs (26) are arranged on the surface of the cover body (21) departing from the driving plate (12).

7. The rapidly starting temperature controlled silicone oil clutch as set forth in claim 1, wherein: the other end of the valve plate shaft (231) is mounted to the center of the valve plate (232).