CN217462334U

CN217462334U - Automatically controlled silicon oil clutch with two-stage oil return structure

Info

Publication number: CN217462334U
Application number: CN202221276138.0U
Authority: CN
Inventors: 夏伟; 刘敦绿; 胡志刚
Original assignee: Suzhou Rising Auto Parts Co ltd
Current assignee: Suzhou Rising Auto Parts Co ltd
Priority date: 2022-05-26
Filing date: 2022-05-26
Publication date: 2022-09-20
Anticipated expiration: 2032-05-26

Abstract

The utility model relates to an automatically controlled silicon oil clutch with two-stage oil return structure, it includes: the driving assembly comprises a driving shaft, a driving plate arranged at the end part of the driving shaft, a first tooth groove formed in the edge part of the driving plate, an oil storage cavity formed in the driving plate and close to the axis of the driving shaft, and an oil return mechanism arranged on the driving plate; driven subassembly, driven subassembly includes the suit and is in casing on the driving shaft, fix end cover on the casing and fixing the driven plate of oil storage chamber one side, the driving plate is located between casing and the end cover, end cover and casing edge portion one side in opposite directions seted up with first tooth's socket matched with second tooth's socket, first tooth's socket and second tooth's socket form the working chamber. The utility model discloses a set up two sets of oil return mechanisms, improved oil return speed, clutch fan separation time is shorter, further promotes the controllability and the response characteristic of clutch rotational speed.

Description

Automatically controlled silicon oil clutch with two-stage oil return structure

Technical Field

The utility model belongs to automobile engine cooling system's silicon oil clutch fan field, concretely relates to automatically controlled silicon oil clutch with two-stage oil return structure.

Background

With the rapid development of industrial technology, various host manufacturers put higher requirements on the electric control silicone oil clutch fan. Such as improved cooling capacity, reduced power consumption, reduced fan noise, etc. However, the traditional electric control silicone oil clutch has the disadvantages of long separation time during cold start, limited oil return effect and slow response of the clutch, so that the water temperature of an engine cannot be stably controlled easily, the water temperature of the engine is high or the oil consumption of the engine is high, the noise of the fan is large, and the impact on a transmission system is large.

Disclosure of Invention

The utility model aims at overcoming the not enough of prior art and providing an automatically controlled silicon oil clutch with two-stage oil return structure.

In order to achieve the above purpose, the utility model adopts the technical scheme that: an automatically controlled silicon oil clutch with two-stage oil return structure, it includes:

the driving assembly comprises a driving shaft, a driving plate arranged at the end part of the driving shaft, a first tooth groove formed in the edge part of the driving plate, an oil storage cavity formed in the driving plate and close to the axis of the driving shaft, and an oil return mechanism arranged on the driving plate;

the driven assembly comprises a shell sleeved on the driving shaft, an end cover fixed on the shell and a driven plate fixed on one side of an opening of the oil storage cavity, the driving plate is positioned between the shell and the end cover, a second tooth groove matched with the first tooth groove is formed in one side, opposite to the edge of the shell, of the end cover, and the first tooth groove and the second tooth groove form a working cavity;

and the driving plate is provided with an oil outlet communicated with the oil storage cavity and the working cavity.

Optimally, the oil return mechanism is including seting up U-shaped groove on the initiative board is global, set up oil return hole, intercommunication on the U-shaped groove oil storage chamber and oil return hole's oil return passageway, setting are in initiative board tip just is close to the inclined plane and the setting of U-shaped groove are in a plurality of stifled oil bosss on the inclined plane.

Optimally, the oil outlet valve further comprises a valve plate and a connector assembly, the valve plate is adjustably installed on the driving plate and matched with the oil outlet, and the connector assembly is sleeved on the driving shaft and used for controlling the valve plate so as to adjust the opening degree of the valve plate and the opening degree of the oil outlet.

Preferably, the housing is mounted on the drive shaft by a first bearing, and the connector assembly is mounted on the drive shaft by a second bearing.

Optimally, a sealing ring is arranged at the joint of the end cover and the shell.

Optimally, the sealing ring is made of fluororubber.

Optimally, the first bearing and the second bearing adopt deep groove ball bearings.

Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage:

the utility model discloses automatically controlled silicon oil clutch with two-stage oil return structure simple structure, through setting up U type groove at the initiative board outermost edge, lead oil through U type groove, guide silicon oil to get into the oil storage chamber through oil gallery and oil return passageway, realize quick oil return; through setting up the stifled oil boss of slope at the initiative board outermost edge, utilize inclined plane centrifugal force to push away silicon oil to the outside, reduce the oil return space through stifled oil boss, increase oil return pressure, and then promote oil return speed. The one-level oil return mechanism and the two-level oil return mechanism are arranged, so that the separation response speed of the clutch fan is improved, the rotating speed of the fan during separation is reduced, the power consumed by the fan is reduced, the cold start response is quicker, the cold start is quicker to separate in winter, and the heat engine is quicker.

Drawings

Fig. 1 is a cross-sectional view of the present invention;

fig. 2 is a cross-sectional view of the active plate of the present invention;

FIG. 3 is a left side view of the driving plate of the present invention;

FIG. 4 is a partially enlarged view of the active plate of the present invention;

FIG. 5 is a schematic structural view of the valve plate of the present invention;

fig. 6 is a schematic structural diagram of the connector assembly of the present invention;

description of reference numerals:

1. an end cap; 2. a housing; 3. a driving plate; 4. a drive shaft; 5. a connector assembly; 51. a support body; 52. a coil; 53. a magnetic conductive ring; 54. a through hole; 55. a Hall element; 6. a valve plate; 7. a first bearing; 8. a second bearing; 9. an oil storage chamber; 10. a driven plate; 11. a U-shaped groove; 12. an oil outlet hole; 13. a working chamber; 14. an oil return hole; 15. a bevel; 16. an oil blocking boss; 17. a limit stop block; 18. a fastener; 19. and a signal loop.

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 efforts all belong to the protection scope of the present invention.

As shown in fig. 1, for the utility model discloses automatically controlled silicon oil clutch's with two-stage oil return structure structural schematic diagram, it is used in automobile clutch fan usually to improve the cooling capacity of fan, reduce power loss, it includes initiative subassembly, driven component, connector assembly 5 and valve block 6 etc..

The driving assembly includes a driving shaft 4 and a driving plate 3 mounted on an end portion of the driving shaft 4, the driving shaft 4 is mounted on an engine of the automobile and is rotated by the engine (in the present embodiment, a diameter of the driving shaft 4 is reduced from one end to the other end in a direction of an axis line thereof, so that a plurality of stepped portions for mounting other parts such as a bearing are formed on the driving shaft 4, and the larger end of the driving shaft 4 is connected to the engine of the automobile). The driving plate 3 is fixed at one end of the driving shaft 4 with a smaller diameter and synchronously rotates with the driving shaft 4 (the driving plate 3 is circular, a through groove for installing the driving shaft 4 is formed in the center of the circle, and the driving shaft 4 is connected with the through groove through a flat key, so that the driving shaft 4 and the driving plate 3 form a whole and further synchronously rotate under the driving of an engine). First tooth's socket has been seted up to the edge portion of driving plate 3, specifically, can set up first tooth's socket in the edge of the surface (the surface of keeping away from driving shaft 4 promptly) of driving plate 3. The oil storage cavity 9 is arranged on the driving plate 3 and close to the axis of the driving shaft 4 (the oil storage cavity 9 is annular and is used for storing silicon oil). The driving plate 3 is fixed with a signal ring 19 on the side facing the connector assembly 5, and the signal ring 19 is used in cooperation with the connector assembly 5.

The driven assembly comprises an end cover 1, a shell 2, a driven plate 10 and the like. The casing 2 suit is on driving shaft 4, and is concrete, and casing 2 suit is on driving shaft 4 through first bearing 7 (deep groove ball bearing is selected for use to first bearing 7, and deep groove ball bearing frictional resistance is little, can bear axial load and radial load, reduces the energy loss when driving shaft 4 rotates). The end cover 1 is fixed on the shell 2 in a screw fastening mode, an accommodating space for placing the driving plate 3 is formed between the end cover 1 and the shell 2, and the driving plate 3 rotates in the accommodating space under the driving of an automobile engine. The junction of end cover 1 and casing 2 is provided with the sealing washer, prevents that inside silicone oil from revealing (fluororubber is chooseed for use to the material of sealing washer, and fluororubber has ageing-resistant, resistant oily and high temperature resistance characteristic, compares in the sealing washer of other materials, and fluororubber sealing performance is better). The driven plate 10 is fixed on one side of the opening of the oil storage cavity 9 and used for sealing the oil storage cavity 9 and preventing silicone oil in the oil storage cavity 9 from leaking.

And a second tooth groove matched with the first tooth groove is formed in one opposite side of the edge part of the end cover 1 and the shell 2 (the first tooth groove and the second tooth groove are the same in height and are arranged in a staggered mode, and a working cavity 13 is formed between the first tooth groove and the second tooth groove). The driving plate 3 is provided with an oil outlet 12 communicated with the oil storage cavity 9 and the working cavity 13, silicone oil in the oil storage cavity 9 flows into the working cavity 13 through the oil outlet 12 under the action of centrifugal force, power is transmitted to the shell 2 and the end cover 1 to drive the fan to rotate at a high speed, and heat of the engine is taken away by generated air flow. The connector assembly 5 is sleeved on the driving shaft 4 through a second bearing 8 and used for generating magnetic force to attract the valve plate 6 so as to enable the valve plate 6 to open or close the oil outlet 12, the second bearing 8 adopts a deep groove ball bearing, the effect is the same as that of the first bearing 7, and the description is omitted here. As shown in fig. 6, the connector assembly 5 is a schematic structural diagram, and includes a supporting body 51, a coil 52, a magnetic ring 53, a through hole 54, and a hall element 55. The supporting body 51 is made of an insulating material, and has a through hole 54 (specifically, a through hole 54 coaxial with the supporting body 51 is formed in the middle thereof). The coil 52 is disposed in the support body 51 and surrounds the through hole 54; when the coil 52 is energized, it generates a magnetic force. A magnetic conductive ring 53 is provided in the support body 51, which is located at the outer periphery of the coil 52, for conducting magnetic force (one end of the magnetic conductive ring 53 is connected to a lead wire connected to the vehicle ECU). The surface of the supporting body 51 is provided with a hall element 55 for sensing a signal (the hall element 55 is used in cooperation with the signal ring 19 for sensing the signal of the signal ring 19, and when the driving shaft 4 drives the driving plate 3 to rotate, the signal ring 19 fixed on the driving plate 3 rotates synchronously).

One end of the valve plate 6 is adjustably mounted on the driving plate 3 through a fastener 18, and the other end of the valve plate 6 is matched with the oil outlet hole 12 (the fastener 18 can be a screw, but the screw does not completely screw the valve plate 6 on the driving plate 3, but a certain gap is reserved between the screw and the valve plate 6, so that the valve plate 6 can rotate). The driving plate 3 is provided with a limit stop 17 corresponding to the valve plate 6, the valve plate 6 after being tilted is limited, and the valve plate 6 can rotate by taking the joint of the valve plate and the fastener 18 as a rotation point, so that the opening and closing of the oil outlet 12 are realized. The valve plate 6 is positioned between the driving plate 3 and the end cover 1, and the opening of the oil outlet hole 12 is adjusted under the control of the connector assembly 5, specifically, when the connector assembly 5 is powered on, the valve plate 6 deforms under stress to enable the middle position of the valve plate 6 to be tightly attached to the end face of the driving shaft 4, and one end, far away from the fastening piece 18, of the valve plate 6 shields the oil outlet hole 12 (namely, closes the oil outlet hole 12); when the connector assembly 5 is powered off, the valve plate 6 is reset, the middle position of the valve plate 6 is leaned against the limit stop 17, and the end of the valve plate 6 far away from the fastener 18 no longer covers the oil outlet 12 (i.e. the oil outlet 12 is opened).

The oil return mechanism is arranged on the driving plate 3 and used for recovering the silicone oil into the oil storage cavity 9, as shown in fig. 2-4, the U-shaped groove 11 is formed on the circumferential surface of the driving plate 3, and the oil return hole 14 is located on the U-shaped groove 11 and connected with the oil storage cavity 9 through an oil return channel (after the valve plate 6 closes the oil outlet hole 12, the silicone oil in the working cavity 13 is guided through the U-shaped groove 11 to guide the silicone oil to be returned to the oil storage cavity 9 through the oil return hole 14 and the oil return channel, so as to form a primary oil return mechanism). The outermost edge of the working teeth on the driving plate 3 is provided with an inclined plane 15, a plurality of oil plugging bosses 16 are arranged on the inclined plane 15, in the silicone oil recovery process, the inclined plane centrifugal force of the inclined oil plugging bosses 16 is utilized to push the silicone oil to the outermost side, the oil return space is reduced by the oil plugging bosses 16, the oil return pressure is increased, the oil return speed is further increased, a second-stage oil return mechanism is formed, and the oil return pressure can be increased by 40% by the second-stage oil return mechanism.

The utility model discloses a theory of operation as follows:

an automobile engine drives a driving shaft 4 to rotate, a driving plate 3 fixed on the driving shaft 4 synchronously rotates in an accommodating space between an end cover 1 and a shell 2, after a valve plate 6 receives a PWM pulse opening signal from a connector assembly 5, the valve plate 6 opens an oil outlet, silicone oil in an oil storage cavity 9 enters a working cavity 13 through the oil outlet 12 under the action of centrifugal force, power is transmitted to the shell 2 and the end cover 1, a fan is driven to rotate at high speed, and heat of the engine is taken away by generated airflow; after the valve plate 6 receives the PWM pulse closing signal of the connector assembly 5, the valve plate 6 closes the oil outlet 12, under the action of the oil return pressure pump, oil is guided through the U-shaped groove 11, and silicone oil is guided back to the oil storage chamber 9 through the oil return hole 14 and the oil return channel, the oil blocking boss 16 provided on the inclined surface 15 can reduce the oil return space, increase the oil return pressure, increase the oil return speed, and at this time, the clutch fan enters the separation state.

Performance comparison of traditional electric control silicone oil clutch and electric control silicone oil clutch with two-stage oil return structure

According to the upper table, the utility model discloses automatically controlled silicon oil clutch with two-stage oil return structure's oil return speed is faster, and the separation time is shorter, further promotes the controllability and the response characteristic of clutch rotational speed.

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. An automatically controlled silicon oil clutch with two-stage oil return structure which characterized in that, it includes:

the driving assembly comprises a driving shaft (4), a driving plate (3) arranged at the end part of the driving shaft (4), a first tooth groove formed in the edge part of the driving plate (3), an oil storage cavity (9) formed in the driving plate (3) and close to the axis of the driving shaft (4), and an oil return mechanism arranged on the driving plate (3);

the driven assembly comprises a shell (2) sleeved on the driving shaft (4), an end cover (1) fixed on the shell (2) and a driven plate (10) fixed on one side of an opening of the oil storage cavity (9), the driving plate (3) is located between the shell (2) and the end cover (1), a second tooth groove matched with the first tooth groove is formed in one side, opposite to the edge portion of the shell (2), of the end cover (1), and the first tooth groove and the second tooth groove form a working cavity (13);

and the driving plate (3) is provided with an oil outlet (12) communicated with the oil storage cavity (9) and the working cavity (13).

2. The electrically controlled silicone oil clutch with a two-stage oil return structure according to claim 1, wherein: oil return mechanism is including seting up U-shaped groove (11), the setting on the initiative board (3) is global is in oil return hole (14), intercommunication on U-shaped groove (11) oil storage chamber (9) and oil return hole's (14) oil return passageway, setting are in initiative board (3) tip just is close to inclined plane (15) and the setting of U-shaped groove (11) are in a plurality of stifled oily bosss (16) on inclined plane (15).

3. The electrically controlled silicone oil clutch with a two-stage oil return structure according to claim 1, wherein: it still includes valve block (6) and connector assembly (5), valve block (6) adjustably install on driving plate (3) and with oil outlet (12) cooperate, connector assembly (5) suit is in on driving shaft (4) and be used for controlling valve block (6) to the aperture of adjusting valve block (6) and oil outlet (12).

4. The electrically controlled silicone oil clutch with a two-stage oil return structure according to claim 1, wherein: the shell (2) is installed on the driving shaft (4) through a first bearing (7), and the connector assembly (5) is installed on the driving shaft (4) through a second bearing (8).

5. The electrically controlled silicone oil clutch with a two-stage oil return structure according to claim 1, wherein: and a sealing ring is arranged at the joint of the end cover (1) and the shell (2).

6. The electrically controlled silicone oil clutch with a two-stage oil return structure according to claim 5, wherein: the sealing ring is made of fluororubber.

7. The electrically controlled silicone oil clutch with a two-stage oil return structure according to claim 4, wherein: the first bearing (7) and the second bearing (8) adopt deep groove ball bearings.