WO2014166272A1

WO2014166272A1 - Gasket, engine and automobile

Info

Publication number: WO2014166272A1
Application number: PCT/CN2013/088741
Authority: WO
Inventors: 胡志胜; 靳素华; 郑久林; 兰剑; 马勇; 钱多德; 孟祥山; 胡必谦
Original assignee: 安徽江淮汽车股份有限公司
Priority date: 2013-04-07
Filing date: 2013-12-06
Publication date: 2014-10-16
Also published as: CL2015002960A1; RU2627236C2; AU2013386218B2; BR112015025534A2; AU2013386218A1; RU2015147616A

Abstract

Disclosed is a gasket (105, 2100, 3100, 4100), wherein the gasket (105, 2100, 3100, 4100) is a circular ring-shaped integral (101), at least one face of which is a plane provided with an oil groove (104, 2130, 3130, 4130), and a centre line of the oil groove (104, 2130, 3130, 4130) is a curve (103) or a straight line (102). When the centre line of the oil groove (104) is a straight line (102), the included angle between the centre line of the oil groove (104, 2130, 3130, 4130) and a radial line from the centre of the circular ring of the gasket (105, 2100, 3100, 4100) is greater than zero. Further disclosed are an engine and an automobile employing the above-mentioned gasket (105, 2100, 3100, 4100). The gasket (105, 2100, 3100, 4100) has good lubrication and reduces the frequency of maintenance.

Description

a gasket, engine and car

Technical field

The present invention relates to the field of machinery and automobiles, and in particular to a gasket, an engine and an automobile. Background technique

The main function of the gear gasket is to limit the axial movement of the gear to ensure smooth and reliable gear transmission. The idler gear washer has a circular ring structure, and the bolt mounting hole in the middle has a flat structure.

Between 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, The axial clearance is used to ensure that the idler gear can rotate normally. When there is axial movement during the rotation of the idler gear, the idler gear pad can prevent the axial movement of the idler gear, ensuring smooth and reliable rotation of the idler gear.

During the rotation of the idler gear, friction occurs between the idler gear and the idler gear washer. In order to prevent the wear of the idler gear and the idler gear washer, the surface of the idler gear and the idler gear washer is improved in smoothness by lubricating oil. Reduce friction.

On the one hand, the surface of the prior art idler gear contact with the idle gear is flat, and such a flat structure makes it difficult for the lubricating oil to enter between the two surfaces, resulting in poor lubrication.

On the other hand, since the shaft is a rotating member, the mounted gasket will rub against the surrounding components that are in contact with it and move relative to each other during operation, so the gasket needs to be lubricated. Under the prior art conditions, one way is to open a hole in the gasket. The more the opening, the larger the lubrication surface, and the better the lubrication effect. However, the more the holes, the worse the rigidity and strength of the gasket, and the lower the ability to withstand axial forces. Another way is to machine the oil groove on the gasket. Generally, the oil groove is radially arranged, and the oil groove is opened at the inner or outer circle. This ensures the strength of the gasket and facilitates the filling and replenishment of the lubricating oil. However, on the one hand, the oil grooves are spaced apart from each other in the circumferential direction, so that the distribution effect of the lubricating oil on the friction surface is not ideal, and on the other hand, the friction surface of the member that is in contact with the gasket and relatively moves. Under the condition that the oil travels in the circumferential direction, it will also be radially excavated under the action of centrifugal force, and the radial oil groove provides a passage for the oil to be discharged, which causes oil loss, which obviously reduces the oil to the gasket. Lubrication reduces the life of the gasket. Moreover, the general gasket is only considered to be applied with a layer of grease during installation, or to supplement the grease in stages. Continuous lubrication will not be considered.

Generally, the gasket is an inexpensive component, and the number of uses is also large. The installation position is more concealed and inconvenient to disassemble. Therefore, the labor cost required for the maintenance personnel to periodically replenish the gasket or periodically replace the gasket is much higher than the gasket cost. In fact, the maintenance personnel will generally wait for the gasket to wear more than a certain limit, causing problems such as large noise or other malfunctions in the engine, etc., and the gasket replacement will be passively performed. Therefore, how to maximize the effect of lubricating grease on the gasket to reduce wear and extend the life of the gasket is a more cost-effective solution to the problem. Summary of the invention

A first object of the embodiment of the present invention is to overcome the above disadvantages, to provide a gasket having a better lubrication effect, and to improve efficiency and cost.

In order to achieve the above object, an embodiment of the present invention provides the following technical solution: a gasket, the gasket is a circular whole body, at least one of which is a plane provided with an oil groove, and the center line of the oil groove is a curve or Straight line; When the center line of the oil groove is a straight line, the angle between the center line of the oil groove and the radial line of the ring core of the gasket is greater than but not equal to zero degrees.

Preferably, the oil grooves are evenly distributed on the annular surface of the gasket.

Preferably, the gasket is provided with oil grooves on both sides, and the oil grooves on both sides are staggered.

Preferably, the gasket is provided with oil grooves on both sides, and the oil grooves on both sides have the same shape or different shapes. Preferably, the oil groove is a through oil groove whose both ends are open to the outer end surface of the gasket.

Preferably, the number of the oil grooves is at least two.

Preferably, the number of oil grooves on both sides of the gasket is the same or different.

Preferably, the oil groove has a cross section of an isosceles trapezoidal structure lacking an upper bottom surface.

Preferably, the two waist extension lines of the isosceles trapezoidal structure have an angle of 30 degrees to 90 degrees. Preferably, the two inclined faces of the oil groove are provided with a circular arc-shaped guide angle at a plane intersection with the idle gear pad. Preferably, the two inclined faces of the oil groove are provided with a circular arc-shaped guide angle at a plane intersection with the idle gear pad. Preferably, the oil groove is a planar spiral shape, the oil groove is open at an inner circle and an outer circle of the gasket, and the oil groove is at least around the inner circle.

Preferably, the oil groove gradually increases in width from the opening of the inner circle. Preferably, the width is continuously increased gradually.

Preferably, the oil groove gradually increases in depth from the opening of the inner circle.

Preferably, the depth is continuously increased gradually.

Preferably, the gasket has oil grooves on both sides, and the spiral directions are the same or opposite.

Preferably, the oil groove is a planar spiral shape, one end of the oil groove is open at an outer circle or an inner circle of the gasket, and the other end is closed, and the oil groove is at least around the inner circle.

Preferably, the oil groove gradually decreases in width from one end of the opening to the closed end.

Preferably, the width is continuously reduced.

Preferably, the oil groove gradually decreases in depth from one end of the opening toward the closed end.

Preferably, the depth is continuously reduced.

Preferably, the gasket is a stamped one-piece.

A second object of embodiments of the present invention is to provide an engine that requires less maintenance frequency. In order to achieve the above object, an embodiment of the present invention provides the following technical solution: An engine comprising: a timing gear; a timing chain; a fuel injector; a gasket as described above;

The timing chain drives the timing gear, the timing gear is affixed with the gasket to rotate relative to the gasket, and the timing gear rotates in a reverse direction with respect to a spiral direction of the gasket. The injector simultaneously supplies oil to the chain and the gasket.

An engine comprising: a shaft member; a gear member; a gasket as described above; the shaft member having an oil passage for supplying oil to an inner circular opening of the gasket, a rotation direction of the gear member The spiral direction of the gasket is the same.

Preferably, the gear member is a helical gear.

An engine in which a gasket as described above is used on a rotating shaft of the engine.

A third object of embodiments of the present invention is to provide an automobile that requires less maintenance frequency and a longer maintenance period.

To achieve the above objective, the embodiment of the present invention provides the following technical solutions:

A vehicle on which the gasket as described above is used. According to the gasket of the embodiment of the invention, the oil groove always has an opening at a certain angle with the rotation direction of the idle gear, so that the opening of the oil groove on the end surface of the gasket cannot be closed by the rotation of the idle gear, and the lubricating oil can easily enter. Improve the lubrication effect by the surface where the idler gear contacts the gasket. When the oil groove is processed only on one surface of the gasket, the processing process is reduced, and the production cost is reduced.

Further, the gasket of the embodiment of the invention adopts the oil groove form to ensure the rigidity and strength of the gasket. Moreover, since the oil groove is a flat spiral shape, after the lubricating oil enters the oil groove from the opening of the inner circle, the rough surface of the peripheral component (for example, the gear member) is equivalent to the water pump impeller, and the oil is pumped out along the oil groove, along the spiral The line is at least one round around the inner circle, which ensures that the gasket can be circumferentially lubricated on the entire surface without being directly pulled out by the radial direction, so the lubrication effect is good and the gasket has a longer service life. And when both the inner and outer circles are open, it is also possible to provide lubrication to the peripheral position.

Further, when both the inner and outer circles are open, starting from the opening at the inner circle, the width of the oil groove gradually increases in the flow direction of the oil, or the depth of the oil groove gradually increases, which is equivalent to the relationship between the oil groove and the peripheral member. The diameter of the formed pipe is larger and larger, so that the peripheral component (such as the gear) rotates relative to the gasket, and the farther away from the oil inlet, the slower the flow rate of the oil under the action of the frictional component with the gasket, the oil The greater the static pressure, similar to the principle of the volute type water pump, the oil is smoothly pumped out of the oil tank and enters the next stage of oil circulation lubrication, such as entering the oil sump of the engine. Moreover, the width gradually increases to the extent that the farther away from the inner circle, the greater the amount of lubricating oil required.

Further, the continuous gradual change of the width and the depth and the processing method of forming together with the stamping have the advantages of convenient processing.

Further, the oil grooves are machined on both sides of the gasket, and the spiral direction can be prevented from being misplaced when the spiral direction is the same, and the different relative rotation directions can be accommodated when the spiral directions are opposite.

An oil passage is machined on the shaft member of the engine to supply oil to the inner circular opening of the gasket, and the rotation direction of the gear member is the same as the spiral direction of the gasket, even if the gear member and the gasket form a volute type oil pump, The gasket is continuously lubricated.

Further, when the oil groove is opened at the outer circumference and the other end is closed, the oil enters the oil groove from the open end of the outer circumference of the oil groove and travels along the spiral direction of the oil groove under the action of the member whose gravity is rubbed against the gasket. The other end of the oil tank is closed to avoid further oil outflow. Therefore, under the condition that the oil replenishment amount is equal in unit time, the oil is allowed to exist in the oil tank, so that the oil can be kept in the oil tank, so lubrication The effect lasts longer, and accordingly, the frequency of the lubricating fluid The number can be reduced, reducing oil loss and maintenance costs. Moreover, the spiral is at least one round around the inner circle, which ensures that the gasket can be circumferentially lubricated on the entire surface, so the lubrication continues to be better and the gasket has a longer service life. When the oil groove is open at the inner circle and the other end is closed, the centrifugal force of the oil in the oil groove is mostly offset by the reverse force provided by the oil groove wall. The oil is only under the action of the friction member. It can travel along the spiral direction of the oil tank to reach the closed end, avoiding the oil being radially pulled out, accelerating the infiltration speed of the oil, and the spiral is at least around the inner circle, ensuring the gasket on the entire surface. Lubrication is achieved in the circumferential direction, so the lubrication lasts better and the gasket lasts longer.

Further, the width of the oil groove is gradually decreased from the one end of the opening toward the closed end, or the depth of the oil groove is gradually decreased, so that the diameter of the oil passage surrounded by the oil groove and the peripheral member is gradually reduced. Since the oil enters from the outer circle, after the lubricating oil is added, when the peripheral component of the device is rotated in the opposite direction to the spiral direction, the oil is further away from the oil inlet under the action of the frictional member. The faster the flow rate of the liquid, the lower the static pressure of the oil, so that the oil quickly invades the entire surface of the gasket and contributes to the maintenance of the oil.

When the gasket according to the embodiment of the present invention is mounted at the position of the shaft of the engine or the automobile, the generation of noise can be reduced, and the frequency of inspection can be reduced.

The gasket of the embodiment of the invention adopts the form of oil groove to ensure the rigidity and strength of the gasket.

Further, in the flow direction of the oil, the width of the oil groove is gradually decreased, or the depth of the oil groove is gradually decreased, and when the starting shaft of the device is rotated after the lubricating oil is added, under the action of the member that generates friction with the gasket, the more Keep away from the oil inlet, the faster the flow rate of the oil, the lower the static pressure of the oil, so that the oil quickly invades the entire gasket surface, but does not flow out from the closed end.

Further, the oil grooves are machined on both sides of the gasket, and the spiral direction can be prevented from being misplaced when the spiral direction is the same, and the different relative rotation directions can be accommodated when the spiral directions are opposite. When the gasket according to the embodiment of the present invention is mounted at the position of the shaft of the engine or the automobile, the generation of noise can be reduced, and the frequency of inspection can be reduced. Instruction sheet

Specific embodiments of the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, wherein:

1 is a schematic structural view of a gasket with an oil groove surface according to a first embodiment of the present invention;

2 is a schematic structural view of a gasket with an oil groove surface according to a second embodiment of the present invention;

3 is a schematic cross-sectional view showing the oil groove of the gasket of the first and second embodiments of the present invention; FIG. 4 is a schematic view showing the use of the gasket of the first and second embodiments of the present invention;

Figure 5 is a cross-sectional view of the engine fuel pump drive mechanism of the third embodiment of the present invention; Figure 6 is a cross-sectional view of the gasket of the third embodiment of Figure 5;

Figure 7 is a cross-sectional view taken along line B-B of Figure 6;

Figure 8 is a front elevational view of the gasket of the fourth embodiment of the present invention;

Figure 9 is a cross-sectional view taken along line C-C of Figure 8;

Fig. 10 is a view showing the operation of an engine using a spacer in a fourth embodiment of the present invention.

Figure 11 is a front elevational view of the gasket of the fifth embodiment of the present invention;

Fig. 12 is a view showing the operation of an engine employing a spacer in a fifth embodiment of the present invention. detailed description

The embodiments of the present invention are described in detail below, and the examples of the embodiments are illustrated in the drawings, wherein the same or similar reference numerals are used for the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the drawings are intended to be illustrative of the invention and are not to be construed as limiting.

In the description of the present invention, it is to be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "previous", "post", "left", " The orientation or positional relationship of the right, "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. is based on the figure Orientation or positional relationship is merely for the convenience of describing the embodiments and the description of the present invention, and does not indicate or imply that the device or element referred to must have a specific orientation, constructed and operated in a specific orientation, This is not to be construed as limiting the embodiments of the invention.

Moreover, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, "multiple" means two or more, unless specifically defined otherwise.

In the embodiments of the present invention, terms such as "installation", "connected", "connected", and "fixed" are to be understood broadly, and may be fixed connections, for example, or may be The connection is disassembled, or connected integrally; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and may be internal communication between the two elements. For those skilled in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood on a case-by-case basis.

Example 1

As shown in Fig. 2, Fig. 3 and Fig. 4, the working principle of the gasket is pressed on the idler shaft 107 by a fixing bolt, and the idle gear 106 and the spacer 105 are designed to have a certain axial clearance, the axial direction. The clearance is used to ensure that the idler gear 106 can rotate normally. Gasket 105 is an annular integral 101, the outer diameter of the spacer 38. 5mm, U bandit inner diameter, a thickness of ^2.5 bandit, inert Gasket according to the specifications can be changed without affecting the present invention embodiment Technical solutions. The surface facing away from the idle gear is flat, the surface contacting the idle gear is a plane provided with the oil groove 104, and the center line of the oil groove 104 is a curve 103. In this embodiment, the material selected for the gasket is In the prior art, the material type has no influence on the technical solution of the embodiment of the present invention. The center line of the oil groove is any curve. The curved oil groove structure is beneficial to the storage of the lubricating oil. The number of oil grooves is at least two, preferably three. One or four, and three or four oil grooves are hooked on the plane of the gasket. When the oil sump is a curve, the lubricating oil entering the oil sump is subjected to the resistance of the non-linear oil groove in the radial direction of the idle gear when subjected to the centrifugal force. At this time, the resistance forms a resultant force with the centrifugal force, and the resultant force is in the same direction. The idler gear is radially at a certain angle so that the lubricating oil is not thrown out and affects the lubrication effect. Preferably, the oil groove is disposed on both sides of the gasket, and the oil groove shape of the surface of the gasket facing away from the idle gear is the same as or different from the shape of the oil groove of the surface contacting the idle gear; the same here refers to the oil groove on both sides of the gasket The shape is the same; the difference here means that the shape of the oil groove on one surface is curved, and the shape of the oil groove on the other surface is a straight shape. Of course, the different shapes of the oil groove on both sides of the gasket It can also be other different shapes.

The oil grooves are evenly distributed on the annular surface of the spacer, and the oil grooves of the surface of the gasket facing away from the idle gear are staggered with the oil grooves of the surface in contact with the idle gear. Preferably, each oil groove is a through oil groove having two ends open to the outer end surface of the gasket, and the oil groove has a cross section of an isosceles trapezoidal structure lacking an upper bottom surface, and is connected with an isosceles trapezoid. The two waist extension lines of the structure form an angle, the angle of the angle is 30 degrees to 90 degrees, preferably 30 degrees to 60 degrees, and an arc is arranged at the intersection of the two inclined faces of the oil groove and the idle gear pad. Shaped lead angle. The guide angle setting helps to reduce the friction between the idler gear and the gasket and reduces the scraping of the lubricating oil on the contact surface.

Example 2

As shown in FIG. 1, FIG. 3 and FIG. 4, the working principle of the gasket is pressed on the idler shaft 107 by a fixing bolt, and the idle gear 106 and the gasket 105 are designed with a certain axial clearance, and the axial clearance is used for It is ensured that the idle gear 106 can rotate normally. The spacer 105 is a toroidal unitary 101 having a plane facing away from the idler gear, and a surface in contact with the idler gear is a plane provided with the oil groove 104. In this embodiment, the material selected for the gasket is prior art, and the material type has no influence on the technical solution of the embodiment of the present invention. The center line of the oil groove 104 is a straight line 102, and the center line of the oil groove is the same as the ring core of the gasket. The angle of the radial line is greater than but not equal to zero. The number of oil grooves is at least two, preferably three or four, and three or four oil grooves are evenly distributed on the plane of the gasket. The oil grooves are evenly distributed on the annular surface of the spacer, and the oil grooves of the surface of the gasket facing away from the idle gear are staggered with the oil grooves of the surface in contact with the idle gear. Preferably, each of the oil grooves is a through oil groove having two ends open to the outer end surface of the gasket, and the oil groove has a cross section of an isosceles trapezoidal structure lacking an upper bottom surface, and the two waist extension lines connecting the isosceles trapezoidal structures form an angle. The angle of the angle is from 30 degrees to 90 degrees, preferably from 30 degrees to 60 degrees, and a circular arc-shaped guide angle is provided at the intersection of the two inclined faces of the oil groove with the plane of the idle gear pad. The setting of the lead angle helps to reduce the friction between the idler gear and the gasket and reduces the scraping of the lubricating oil on the contact surface.

Example 3

Figure 5 shows, by way of example, a fuel pump drive mechanism in an engine timing train employing a shim 2100. Of course, those skilled in the art will appreciate that the shim 2100 can also be used in other timing trains such as generator drive mechanisms, or in other positions of the engine having shaft and gear components, or for other automotive applications. position. The gear 2500 receives power driven from the crankshaft to rotate the drive shaft 2200 within the shaft bore of the flange 2400, and the flange 2400 is fixedly mounted to the cylinder 2300. The spacer 2100 is placed on the shaft 2200 between the gear 2500 and the flange 2400. An oil passage 2410 for supplying oil to the annular oil groove 2210 on the shaft 2200 is processed on the flange 2400, and the annular oil groove 2210 serves as an oil passage for supplying oil to the gasket 2100.

Referring to Figure 6, the spacer 2100 is annular with an inner circle 2110 and an outer circle 2120. The inner circle 2110 is for the sleeve 2100 to be placed over the shaft. Friction between the gasket 2100 and the gear 2500 The surface has a spiral-shaped oil groove 2130, and the first end 2131 of the oil groove 2130 is open at the inner circle 2110, and the second end 2132 is open at the outer circle 2120. From the first end 2131 to the second end 2132, the oil groove 2130 passes at least twice or reaches a line BB of a diameter of the gasket 2100, that is, the oil groove 2130 surrounds at least the inner circle 2110-week.

It is assumed that the gear 2500 is rotated clockwise at this time, the direction and the first end of the oil groove 2130.

The spiral direction of 2131 to the second end 2132 is the same. At this time, the oil in the oil groove 2130 tends to move circumferentially with the peripheral member due to the friction and adsorption of the peripheral member and the viscous force of the oil itself, so the oil is in the oil. The effect of centrifugal force and tangential force is generated on the liquid. Since the oil groove 2130 is a flat spiral shape, at any point on the wall of the oil groove 2130, the centrifugal force is substantially offset by the reaction force provided by the wall at the point, and can only flow along the tangential direction, that is, Fig. 6 The direction indicated by the dotted arrow in the direction. Moreover, in this direction, the width W of the oil groove 2130 is gradually increased, and the bonding faces of the oil groove 2130 and the gear 2500 together form a water chamber structure similar to a volute type water pump, and the rough surface of the gear 2500 functions similarly to the impeller. The oil is smoothly "pumped" out, and the gasket 2100 is introduced into the oil circulation lubrication system to obtain continuous lubrication. If the gear 2500 is an idler, it is inconvenient to provide lubrication for the roller of the bearing when the roller bearing is used. At this time, the oil pumped from the gasket 2100 can provide continuous lubrication for the roller and then enter the oil sole. The shell, entering the next cycle of lubrication, is advantageous. The gradual increase of the width of the oil groove 2130 includes a stepwise increase and a continuous increase. The gasket 2100 can be formed by stamping, milling, etc., for the purpose of processing efficiency, the stamping method is integrally formed, and the continuously increasing width is adopted. Advantage.

Figure 7 shows the change in depth of the oil sump 2130 in the direction of oil flow. The depth HI is greatest at the second end 2132 of the opening, the depth H3 at the first end 2131 of the opening is the smallest, and the depth H2 between the first end 2131 and the second end 2132 is between HI and H3. And this change in depth is similar to the change in width, and is also gradually changed, including stepwise and continuous gradual changes, preferably continuously changing gradually. This change in depth has the same beneficial effects as the change in width, and therefore will not be described again.

Example 4

Referring to Figure 8, the spacer 3100 is annular with an inner circle 3110 and an outer circle 3120. The peripheral member that abuts and rotates relative to the spacer 3100 rubs against the surface of the spacer 3100. A spiral oil groove 3130 is formed on the surface where the gasket 3100 is attached to the peripheral member and rubbed. Oil tank 3130 The first end 3131 is closed, and the second end 3132 is open at the outer circle 3120. From the first end 3131 to the second end 3132, the oil groove 3130 passes at least twice or reaches a line CC of a diameter of the spacer 3100, and Line CC also serves as the section line of Figure 9, i.e., oil sump 3130 is at least one week around inner circle 3110. The oil groove 3130 at least around the inner circle 3110 - the circumference ensures that the surface of the gasket 3110 can be lubricated over the entire circumferential range. It is assumed that the peripheral member that rubs against the spacer 3100 is rotated clockwise, and the oil is added from outside the outer circle 3120. At the initial stage of starting the device, the rotational speed of the peripheral member is getting faster and faster, and the oil in the oil groove 3130 is due to the peripheral member. The friction, the adsorption and the viscous force of the oil itself tend to move circumferentially with the peripheral members, thus creating a centrifugal force and a tangential force on the oil radially outward from the center of the inner circle 3110. . Since the oil groove 3130 is a flat spiral shape, at any point on the wall of the oil groove 3130, most of the centrifugal force is offset by the reaction force provided by the wall at the point, and can only flow along the tangential direction, that is, the figure The direction indicated by the dashed arrow in 9 points from the second end 3132 to the first end 3131. Moreover, in this direction, the width W of the oil groove 3130 is gradually decreased, and the flow rate of the oil is further away from the oil inlet under the action of the member which generates friction with the gasket after the lubricating oil is added after the lubricating oil is added. The lower the static pressure of the oil, the faster the oil will invade the entire surface of the gasket and contribute to the maintenance of the oil. As can be seen from the above description, the oil groove 3130 of the gasket 3100 is designed to work in a plane spiral shape, which is exactly the opposite of the working principle of the volute type water pump. The working principle of the volute type water pump is to make the horizontally slip out of the water pump and have a large The static pressure is strong, and the planar spiral-shaped oil groove 3130 works by allowing the oil to smoothly infiltrate along the oil passage 3130 for infiltration and the static pressure is gradually reduced, and the surrounding components of the gasket 3100 can be understood as a water pump. The role of the impeller. The gradual reduction of the width of the oil groove 3130 includes stepwise gradual reduction and continuous gradual reduction. The gasket 3100 can be formed by stamping, milling, etc., for the purpose of processing efficiency, is integrally formed by stamping, and is continuously reduced. The width is advantageous. Since the first end 3131 of the gasket 3100 is closed, the oil can no longer continue to flow out of the oil groove 3130 after reaching the first end 3131, which is advantageous in the case of refueling from the outside.

Figure 9 illustrates the change in depth of the oil sump 3130 in the direction of flow of the oil. The depth HI is greatest at the second end 3132 of the opening, the depth H3 at the closed first end 3131 is the smallest, and the depth H2 between the first end 3131 and the second end 3132 is between HI and H3. And this change in depth is similar to the change in width, and it is also gradually changing, including stepped and The gradual change of the continuous type is preferably continuously decreased gradually. This change in depth has the same beneficial effect as the change in width, and therefore will not be described again.

Fig. 10 shows an engine using the spacer 3100 as an example of a timing train. The gear 3500 is a timing gear in the timing train, such as a fuel pump gear, a water pump gear, a generator gear, etc., receives a drive from the crankshaft through a timing chain (not shown) to drive the shaft 3200 in the law. The shaft of the Lan 3400 rotates inside the shaft hole. The flange 3200 is fixedly mounted on the cylinder 3300, and the gasket 3100 is placed on the shaft 3200 between the timing gear 3500 and the flange 3400. The timing gear 3500 is rotated clockwise from the R direction, so the timing gear 3500 is a member that generates friction against the spacer 3100, and the direction of rotation is opposite to the spiral direction of the first end 3131 to the second end 3132 of the oil groove 3130. in contrast. Generally, when the timing chain is used, the fuel injector (not shown) is used to provide oil lubrication to the timing chain, and since the opening of the gasket 3100 is at the outer circle 3120, the oil sprayed from the injector acts by gravity. Or flowing in the lubricating oil passage, flowing into the oil groove 3130 from the second end 3132 of the opening.

One of ordinary skill in the art will readily appreciate that the shim 3100 in embodiments of the present invention can also be applied to other locations of the engine, or to other locations such as wheel axles, or to other mechanical fields. When the oil grooves 3130 are processed on both surfaces of the gasket 3100, if the spiral directions of the two oil grooves are the same (the same is the left spiral or the right spiral), the gasket 3100 can be prevented from being reversed; if the spiral direction of the oil grooves on both sides On the contrary, it is possible to select the bonding friction surface of the spacer 3100 and the member according to the relative rotational direction of the peripheral member (clockwise or counterclockwise), and the gasket is more versatile. Therefore, the design of the two-sided oil groove is advantageous.

Example 5

Referring to Figure 11, the spacer 4100 is annular with an inner circle 4110 and an outer circle 4120. The peripheral member that is in close contact with the spacer 4100 is moved relative to the spacer 4100 due to the rotation, and thus rubs against the surface of the spacer 4100. A spiral oil groove 4130 is formed on the surface where the gasket 4100 is attached to the peripheral member and rubbed, and the first end 4131 of the oil groove 4130 is opened at the inner circle 4110, and the second end 4132 is closed near the outer circle 4120. The oil groove 4130 is at least one week around the inner circle 4110. The opening of the oil groove 4130 is for replenishing the gasket 4100 with lubricating oil, and the oil groove 4130 at least around the inner circle 4110 - the circumference ensures that the surface of the gasket 4110 can be lubricated over the entire circumferential range. It is assumed that the peripheral component that rubs against the spacer 4100 at this time is rotated counterclockwise, and the first end 4131 is filled with oil. At this time, the oil in the oil groove 4130 is rubbed and adsorbed by the peripheral components. Under the action of the viscous force of the oil itself, it tends to move circumferentially with the peripheral members, thus generating centrifugal force and tangential force on the oil. Since the oil groove 4130 is a flat spiral shape, at any point on the wall of the oil groove 4130, the centrifugal force is substantially offset by the reaction force provided by the wall at the point, and the oil can only flow in the tangential direction, that is, The direction indicated by the dashed arrow in FIG. 11 is directed from the first end 4131 to the second end 4132. Preferably, in this direction, the width of the oil groove 4130 is gradually decreased. When the starting shaft of the device is rotated after the lubricating oil is added, the flow rate of the oil is faster as far away from the oil inlet under the action of the frictional member. The lower the static pressure of the oil. As can be seen from the above description, the oil groove 4130 of the gasket 4100 is designed to work in a plane spiral shape, which is exactly the opposite of the working principle of the volute type water pump. The working principle of the volute type water pump is to make the horizontally slip out of the water pump and have a large The static pressure is strong, and the planar spiral-shaped oil groove 4130 works by allowing the oil to smoothly infiltrate along the oil passage 4130 for infiltration and the static pressure is gradually reduced, and the surrounding components of the gasket 4100 can be understood as a water pump. The role of the impeller. Therefore, in the flow direction of the oil, the acceleration of the oil flow rate makes the invasion speed faster. The gradual reduction of the width of the oil groove 4130 includes stepwise gradual reduction and continuous gradual reduction. The gasket 4100 can be formed by stamping, milling, etc., for the purpose of processing efficiency, is integrally formed by stamping, and is continuously reduced. The width is advantageous. At the same time, one of ordinary skill in the art can imagine that the depth of the oil groove 4130 can also be gradually reduced in the direction in which the first end 4131 is directed toward the second end 4132, including stepwise and continuous gradual changes, preferably continuously. Reduced. This change in depth has the same beneficial effect as the change in width, and therefore will not be described again.

Fig. 12 shows an engine using a spacer 4100 as an example of a timing train. The gear 4500 is a drive gear in the timing train that is driven by the power of the crankshaft to rotate the drive shaft 4200 within the shaft bore of the flange 4400. The flange 4200 is fixedly mounted on the cylinder 4300. The spacer 4100 is sleeved on the shaft 4200 between the drive gear 4500 and the flange 4400, and supplies oil from the shaft hole (not shown) of the shaft 4200 to the first end 4131. Assuming that the drive gear 4500 is rotated counterclockwise from the R direction, the drive gear 4500 is a member that generates friction against the spacer 4100. Moreover, the friction surface of the driving gear 4500 and the oil groove 4130 together form a structure similar to the volute water pump, but at this time, since the variation in the width and depth of the oil groove 4130 is opposite to the change of the water chamber of the volute water pump, the work is performed. The principle is reversed. The gasket 4100 will have a longer service life than other gasket oil groove shapes of the prior art. One of ordinary skill in the art will readily appreciate that the spacer 4100 of the present embodiment can also be applied to other locations of the engine, or to other locations such as wheel axles, or to other mechanical fields. Further, according to the rotation direction of the peripheral member of the spacer 4100, a combination of a change in the width and depth of the oil groove and a different spiral direction of left-handed and right-handed is employed. When the oil grooves 4130 are processed on both surfaces of the gasket 4100, if the spiral directions of the two oil grooves are the same, for example, the same as the left spiral or the right spiral, the gasket 4100 can be prevented from being reversed; If the spiral direction is opposite, the matching friction surface of the spacer 4100 and the member can be selected according to the relative rotation direction of the peripheral member, such as clockwise or counterclockwise, and the gasket is more versatile. Therefore, the design of the two-sided oil groove is advantageous.

One of ordinary skill in the art will readily appreciate that the gaskets of the first to fifth embodiments of the present invention can be used in an engine or automobile, or other mechanical field.

The above description of the exemplary embodiments of the present invention has been described by way of example only, and it is understood that those skilled in the art can use various different embodiments without departing from the spirit and scope of the invention. The manner in which the described embodiment is modified. The drawings and the description are to be regarded as illustrative in nature and are not construed as limiting the scope of the invention.

Claims

Rights request

A gasket, characterized in that: the gasket is a circular whole body, at least one of which is a plane provided with an oil groove, the center line of the oil groove is a curve or a straight line; when the center line of the oil groove is a straight line The angle between the centerline of the oil groove and the radial line of the ring core of the gasket is greater than zero degrees.

2. The gasket according to claim 1, wherein: the number of the oil grooves is at least two, and both are distributed on the annular surface of the gasket.

3. The gasket according to claim 1, wherein: the gasket is provided with oil grooves on both sides thereof, and oil grooves on both sides are alternately arranged.

4. The gasket according to claim 1, wherein: the gasket is provided with oil grooves on both sides thereof, and the oil grooves on both sides are the same or different in shape.

The double-sided oil groove gear gasket according to claim 3 or 4, wherein the number of oil grooves on both sides of the gasket is the same or different.

The gasket according to claim 1, wherein the oil groove is a through oil groove having both ends open to the outer end surface of the gasket.

The gasket according to any one of claims 1 to 4, characterized in that the oil groove has a cross section of an isosceles trapezoidal structure lacking an upper bottom surface.

8. The gasket according to claim 7, wherein: the two waist extension lines of the isosceles trapezoidal structure have an angle of 30 to 90 degrees.

9. The gasket according to claim 7, wherein: the two inclined faces of the oil groove are provided with a circular arc-shaped guide angle at a plane intersection with the idle gear pad.

The gasket according to any one of claims 1 to 4, wherein: the oil groove is a planar spiral shape, and the oil groove is open at both an inner circle and an outer circle of the gasket, and The oil sump is at least one circumference around the inner circle.

The gasket according to claim 10, wherein the oil groove gradually increases in width from the opening of the inner circle.

The gasket according to claim 11, wherein the width is continuously increased.

The gasket according to claim 10, wherein the oil groove is from the inner circle The opening depth begins to increase gradually.

The gasket according to claim 13, wherein the depth is continuously increased gradually.

The gasket according to any one of claims 1 to 4, wherein the oil groove is a planar spiral shape, and one end of the oil groove is open at an outer circle or an inner circle of the gasket, The other end is closed and the oil sump is at least one week around the inner circle.

16. The gasket according to claim 15, wherein the oil groove gradually decreases in width from one end of the opening toward the closed end.

17. The gasket of claim 16, wherein the width is continuously reduced.

The gasket according to claim 15, wherein the oil groove gradually decreases in depth from one end of the opening toward the closed end.

19. The gasket of claim 18, wherein the depth is continuously decreasing.

20. The gasket of claim 1 wherein the gasket is a stamped, integrally formed piece.

21. An engine, comprising:

Timing gear

Timing chain

Fuel injector

a gasket according to any one of claims 1 to 20;

22. An engine, comprising:

Shaft component

Gear component

a gasket according to any one of claims 1 to 20;

The shaft member has an oil passage for supplying oil to an inner circular opening of the gasket, the gear portion The direction of rotation of the piece is the same as the direction of the spiral of the spacer.

The engine according to claim 21 or 22, wherein the gear member is a helical gear.

An engine characterized by using the gasket according to any one of claims 1 to 20 on a rotating shaft of the engine.

A vehicle, characterized in that the automobile is provided with the gasket according to any one of claims 1 to 20.