CN2521403Y

CN2521403Y - Silicone oil fan clutch

Info

Publication number: CN2521403Y
Application number: CN 01252855
Authority: CN
Inventors: 陈卫德; 戴宏鸣
Original assignee: Warner Shenglong Ningbo Co ltd
Current assignee: Warner Shenglong Ningbo Co ltd
Priority date: 2001-08-01
Filing date: 2001-08-01
Publication date: 2002-11-20
Anticipated expiration: 2011-08-01

Abstract

The utility model relates to the technical field of a silicon-oil fan clutch for cars. The utility model is designed for the mounting and usage of engines of vehicles. A driving shaft is fixed in the middle of a casing body via a bearing. A main movable plate is mounted on the driving shaft. A tooth-groove engagement mechanism is disposed in a cavity of engagement holes which are arranged between the main movable plate and the end side of the casing body. A temperature-sensitive metal plate is fixed on the outer surface of a front cover, and the temperature-sensitive metal plate is connected with valve blocks disposed in a cavity of silicon-oil holes which is arranged in the front cover. The valve blocks and valve holes disposed on a driven plate are in open-close engagement, and the driven plate is in the position which is a boundary applying surface of the front plate of the driven plate and the casing body. The space between the front plate and the casing body is divided into the cavity of silicon-oil holes and the cavity of the engagement holes, wherein the front portion of the cavity of silicon-oil holes is positioned in the front cover, the rear portions of the cavity of the engagement holes are positioned in the casing body, and the cavity of the engagement holes is communicated with the cavity of silicon-oil holes which is disposed in the front cover via passages. The front cover and the casing body are fixedly connected together. The utility model is characterized in that the driving shaft provided with center through-holes pierces and is fixed in the center position between the front plate and the casing body. The utility model has the advantages of thin thickness, simple manufacture and assembly and sound effect, being adaptable for car usage.

Description

Silicon oil filled fan clutch

Technical field

The utility model relates to a kind of engine-cooling system assembly, especially silicon oil filled fan clutch component technology field.

Background technique

Energy saving is a long-range policy of national development economy.Show according to relevant research data, the energy consumption of automobile 5-10% is on the fan cooled of motor, and in fact the automobile work most of the time is not need fan cooled, generally have only the 5-10% time just to need fan cooled, so the fan automatic clutch technology of automobile is the important guardian technique of vehicle energy saving, there are a lot of technician that the clutch of fan automatic clutch has been carried out technological improvement for this reason.A kind of structure silicon oil filled fan clutch is wherein arranged because compact structure, remarkable energy-saving performance, fan cooled is effective and obtain a lot of producers and use, so Chinese patent also has the technical paper of several pieces of relevant this respects, it as the patent No. 89219026.4 Chinese patent " drive fan viscous ", it is mainly by driving disc, driven disc, running shaft, bearing, housing, end cap and valve block control mechanism are formed, this clutch has mazy type silicone oil active chamber and storing cavity, its oil return structure is to install back the oil catch piece from driven disc, and spill port is set, circular groove upper edge diametric(al) has two straight V-arrangement oil-break grooves and two spill ports on driving disc, thereby at driving disc between the driven disc, drainback passage is all arranged from end face to cylindrical, improved the fluid circulation, make motor be in optimum condition, save the energy, reduce noise and vibrations.It also is the Chinese patent " a kind of silicon oil filled fan clutch " of 90205791.X with oil scraping teeth just like the patent No., the patent No. is that 93201277.9 Chinese patent " is taken back the drive fan viscous of oil groove and curved radiating fin " or the like, their general flange shaft that adopts are connected with thread spindle, so the thickness of whole fan clutch is bigger, generally between the 40-50 millimeter, and motor generally has only 20 millimeter for silicon oil filled fan clutch attachment face distance on the series automobiles that runs quickly now, so above similar structure, the silicon oil filled fan clutch that thickness is bigger just cannot be promoted the use of on this automobile.

Summary of the invention

Technical problem to be solved in the utility model provides a kind of thinner thickness, be adapted at using on the special series automobiles and the silicon oil filled fan clutch of production and assembly easily.

The utility model solves the problems of the technologies described above the technological scheme that is adopted: a kind of silicon oil filled fan clutch, it includes housing, protecgulum, active plate, follower plate, bearing, valve block, temperature sensing scissel, silicone oil, it passes through the bearing fixing driving shaft in the middle of housing, settle active plate on the driving shaft, and in the engagement vestibule teeth groove cooperating structure is arranged between active plate and the housing end face, temperature sensing scissel is fixed on the outer surface of protecgulum, it is connected valve block in the silicone oil vestibule of protecgulum the inside by transmission controlling mechanism, valve block opens and closes with valve opening on the follower plate and cooperates, follower plate is in the boundary faying surface position of protecgulum and housing, with space segmentation between protecgulum and the housing be the front at silicone oil vestibule in the protecgulum and back the engagement vestibule in housing, the engagement vestibule also has the duct to be communicated with the silicone oil vestibule of protecgulum, protecgulum and housing are fixed together, and it is characterized in that having the driving shaft of central bore to pass and be fixed on the central position of protecgulum and housing.

Above-mentioned driving shaft and active plate are directly to become one structure by die casting.

Compared with prior art, advantage of the present utility model has been to adopt the driving shaft structure of central bore.Can make silicon oil filled fan clutch that thickness is installed descends greatly, generally be controlled at 18 millimeter, can be installed on the benz series automobiles motor, driving shaft and active plate are the casting forming one, make things convenient for production and assembly, whole clutch configuration is compact to design, reasonable, lays the foundation for simplifying production and assembly technology, and reduce production costs, be adapted at promoting the use of on the more special motor car engine.

Description of drawings

Fig. 1 silicon oil filled fan clutch plan view;

Fig. 2 is Figure 1A-A place structure sectional view.

Embodiment

Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.

Embodiment 1, anticipate as shown in the figure, this kind silicon oil filled fan clutch, it includes housing 14, protecgulum 1, active plate 13, follower plate 11, bearing 9, valve block 2, temperature sensing scissel 10, silicone oil, in the middle of housing 14, have axis hole, bearing 9 is pressed into and is fixed in the axis hole of clutch housing, at the axis hole outside edge sealing bearing 9 is fixed on the housing 14 then, the driving shaft 8 of central bore adopts the hexagon head structure, as inserts, be pressed into one by die casting and active plate 13, active plate position therebetween has the through hole 20 that allows silicone oil pass through.The assembly of driving shaft and active plate is pressed into and is contained in the bearing hole, cooperate with ladder circle on the driving shaft 8 by bearing 9, be fixed on the driving shaft, in the engagement vestibule teeth groove cooperating structure 19 arranged between active plate 13 and housing 14 end faces, in the engagement vestibule, be injected with silicone oil.Recessing on housing 14 and protecgulum applying end face, liner seal ring 15.Protecgulum 1 is at close driving shaft axis hole position expense axis hole, seal ring 4 and bearing pin support 6 in this pin shaft hole, have been pressed into successively, metal horse 3 is fixed on protecgulum 1 exterior edge face by rivet, open-work is also opened at its center, the board-like temperature sensing scissel 10 that open-work is opened in centre is fixed on the protecgulum, is pressed with seal ring 7 in the groove of opening in protecgulum driving shaft axis hole.Also has follower plate 11, it is in the boundary faying surface position of protecgulum and housing, with space segmentation between protecgulum and the housing is silicone oil vestibule 17 and the back engagement vestibule 18 in housing in the protecgulum of front, have on the follower plate 11 and allow silicone oil flow to the valve opening 16 that goes the engagement vestibule from the silicone oil vestibule, other has and cooperates the valve block 2 that opens and closes with valve opening, its bottom and follower plate get up by rivet 12 riveteds, and their central positions have the axis hole that allows driving shaft pass, the general axis bore dia is big slightly, become the passage that is communicated with engagement vestibule and silicone oil vestibule simultaneously, the assembly of follower plate and valve block is pressed in the protecgulum, be inserted with bearing pin 5 in the bearing pin support 6, the bearing pin rear end is just near valve block, and fit into action with it and do, temperature sensing scissel 10 is installed in the metal horse, and temperature sensing scissel is inboard near the bearing pin front end, and cooperates with it and to contact.Preceding cap assembly and housing assembly are connected by driving shaft and axis hole, and fastening by edge sealing.

Silicon oil filled fan clutch is adjusted the silicone oil flowing state according to the temperature of car radiator, change the engagement moment of active plate 13 and housing 14, thereby drive fan is rotated with different speed and is reached cooling and energy-conservation purpose, its detailed process is as follows, when the temperature of radiator is hanged down, this moment, temperature sensing scissel 10 was inwardly to shrink, just promoting pivot pin 5 inwardly moves, pivot pin also withstands valve block 2 and inwardly presses close to valve opening 16 on the follower plate 11, even up to the valve block close valve orifice, silicone oil just mainly concentrates in the silicone oil vestibule 17 of protecgulum like this, silicone oil amount between active plate and housing in the engagement vestibule is just few, shearing force between them is just little like this, just the engaging force between them is just little, this moment, protecgulum 1 fan can only low speed rotation, when radiator temperature when higher, the temperature sensing scissel 10 of silicon oil clutch is with regard to temperature distortion, outwards eject, valve block 2 is under the elastic reaction of oneself, leave valve opening 16 on the follower plate 11, this moment, silicone oil flowed to engagement vestibule 18 between active plate and housing by protecgulum silicone oil vestibule, along with increasing of silicone oil, active plate 13 increases with the engaging force of housing 14, thereby drive whole clutch high speed rotating, rotation speed of the fan also improves rapidly, realizes cooling fast.When water tank temperature reduces once more, temperature sensing scissel 10 recovers the origin-location gradually, and valve block 2 is closed, and the silicone oil major part in active plate and the housing engagement vestibule is scraped back in the protecgulum 1 silicone oil vestibule, active plate 13 reduces with the engagement moment of housing 14, and rotation speed of the fan reduces.So repeatedly, realize air-cooled, energy-conservation purpose.

Embodiment 2, this silicon oil filled fan clutch, its valve block transmission controlling mechanism is a rotary type, can be referring to conventional drives, protecgulum expense axis hole, be fixed with a bearing pin by bearing pin support and seal ring, the bearing pin front end is connected with disc type temperature sensing scissel one end, and the disc type temperature sensing scissel the other end is fixed on the protecgulum, the bearing pin rear end is fixed with valve block, its working principle is distortion after the disc type temperature sensing scissel is heated or catches a cold, thereby the valve block that drives the back rotates, and the valve opening on valve block rotation and the follower plate opens and closes interoperation, realize closing of valve, other structure is identical with embodiment 1, in order to save space, no longer is described in detail here.

Claims

1, a kind of silicon oil filled fan clutch, it includes housing (14), protecgulum (1), active plate (13), follower plate (11), bearing (9), valve block (2), temperature sensing scissel (10), silicone oil, it passes through bearing (9) rigid drive shaft (8) in the middle of housing (14), settle active plate (13) on the driving shaft, and in the engagement vestibule teeth groove cooperating structure (19) is arranged between active plate and the housing end face, temperature sensing scissel (10) is fixed on the outer surface of protecgulum (1), it is connected valve block (2) in the silicone oil vestibule of protecgulum the inside by transmission controlling mechanism, valve block opens and closes with valve opening (16) on the follower plate and cooperates, follower plate (11) is in the boundary faying surface position of protecgulum and housing, with space segmentation between protecgulum and the housing be the front at silicone oil vestibule (17) in the protecgulum and back the engagement vestibule (18) in housing, the engagement vestibule also has the duct to be communicated with the silicone oil vestibule of protecgulum, protecgulum (1) is fixedly connected on-rises with housing (14), it is characterized in that having the driving shaft (8) of central bore to pass and be fixed on the central position of protecgulum (1) and housing (14).

2, silicon oil filled fan clutch according to claim 1 is characterized in that described driving shaft (8) has the hexagon head structure as inserts, becomes one by die casting and active plate (13).

3, silicon oil filled fan clutch according to claim 1, it is characterized in that described bearing (9) is fixed on the housing (14) by bearing hole flange in the housing, and the bearing literary composition cooperates driving shaft is fixed on protecgulum and the housing on the central position by going up the ladder circle with driving shaft (8).

4, silicon oil filled fan clutch according to claim 1, it is characterized in that described transmission controlling mechanism is fixed with the board-like temperature sensing scissel (10) that open-work is opened in a centre for the protecgulum end face by metal horse (3), protecgulum expense axis hole accordingly, fix a bearing pin (5) by bearing pin support (6) and seal ring (4), the bearing pin front end cooperates with board-like temperature sensing scissel (10), the rear end cooperates with valve block (2), and valve block bottom and follower plate are fixed together.

5, silicon oil filled fan clutch according to claim 1, it is characterized in that described transmission controlling mechanism is a protecgulum expense axis hole, fix a bearing pin by bearing pin support and seal ring, the bearing pin front end is connected with disc type temperature sensing scissel one end, the disc type temperature sensing scissel the other end is fixed on the protecgulum, and the bearing pin rear end is fixed with valve block.

6, silicon oil filled fan clutch according to claim 1, it is characterized in that described housing (14) with the protecgulum faying surface on have groove, liner seal ring (15).

7, silicon oil filled fan clutch according to claim 1 is characterized in that recessing on its axis hole of described protecgulum (1) and the driving shaft surface of contact, liner seal ring (7).

8, silicon oil filled fan clutch according to claim 1 is characterized in that described active plate (13) has the through hole (20) that allows silicone oil pass through in the position therebetween.