CN207539332U - A kind of water pump sealing ring - Google Patents

Abstract

The utility model discloses a kind of water pump sealing rings, the upper and lower two work cambered surface of the sealing ring is made of three sections or more tangent arcs, anti-dropout protrusion and the anti-protrusion that skews are equipped at intervals in the interior outside of sealing circle body, the utility model has the characteristics that more reliable, contact stress curve is more rationally, sealing effect is good, sealing ring is not easily to fall off in the trench when the tangent single-peak structure of upper and lower end face multi-section circular arc, work, is not easy to skew, reaction force smaller, reduces counterpart local buckling or deformation.

Description

A kind of water pump sealing ring

Technical field

The utility model belongs to engine water pump sealed product technical field, more particularly, to a kind of water pump sealing ring.

Background technology

Engine water pump gland is typically designed the unimodal design for using upper and lower ends for single circular arc, sealing ring after assembling Relatively narrow with the contact width at counterpart contact surface, only there are one maximum of points on contact stress curve, contact stress is more than 60% The width of Max.contact stress ratio in total contact width is small.There is anti-dropout raised on water pump sealing ring, although can fix Sealing ring does not come off out of groove, but to often lead to sealing ring excessive to counterpart reaction force for the presence of protrusion, makes counterpart Local buckling, deformation seriously affect water pump sealing.

Invention content

The purpose of this utility model is that improving the deficiency of prior art and to provide a kind of upper and lower end face multi-section circular arc tangent Single-peak structure, work when more reliable, contact stress curve more rationally, sealing effect is good, sealing ring is not easily to fall off in the trench, It is not easy to skew, reaction force smaller, the water pump sealing ring for reducing counterpart local buckling or deformation.

The purpose of this utility model is achieved in that a kind of water pump sealing ring, its main feature is that the sealing ring is upper and lower Two work cambered surfaces are made of three sections or more tangent arcs.

Can be equipped at intervals with anti-dropout in the interior outside of sealing circle body to further realize the purpose of this utility model Protrusion and the anti-protrusion that skews.

Can be that the diameter of anti-dropout protrusion is more than the anti-protrusion that skews to further realize the purpose of this utility model Diameter.

Compared with the prior art the utility model has following distinguishing feature and good effect：The utility model lower work End face is the tangent unimodal contact surface of multi-section circular arc using the tangent single-peak structure section of multi-section circular arc, upper and lower ends face, Water pump sealing ring and water pump cover contact width are wider during work, and the tangent functional contact face of multi-section circular arc connects than common single circular arc It is more preferable to touch sealing surface sealing effect, it is narrow to overcome original single circular arc sealing surface sealed width, in the range of sealed width only there are one The shortcomings that maximum value, the utility model water pump sealing ring is more reliable at work, there are two on counterpart contact stress curve Symmetrical maximum of points, the region contact stress between maximum of points are all higher than the 60% of maximum value, and contact stress curve is more reasonable, Reach the reliable sealing effect of two maximum contact pressure points of single-peak structure, sealing stability is more preferable, and the contact with counterpart should Power distribution is more reasonable；Spaced two kinds of protrusions of different sizes are set in the medial and lateral of water pump sealing circle body, are relatively large in diameter Protrusion is known as anti-dropout protrusion, for preventing water pump sealing ring from coming off from water pump cover groove, while can ensure sealing ring Positioning in slot.The smaller protrusion of diameter is known as the anti-protrusion that skews, and is only used for positioning of the water pump sealing ring in enclosure slot, prevents Only sealing ring assembles or offsets to one side or skew when working, Anti-fall and the anti-bulge clearance design that skews, than common list anticreep Convex design is fallen, reaction force of the sealing ring to groove is reduced, effectively reduces the deformation of counterpart, sealing is made more may be used It leans on.

Description of the drawings

The utility model is described in further detail with reference to the accompanying drawings and examples.

Fig. 1 is a kind of structure diagram of the utility model.

Fig. 2 is another structure diagram of the utility model.

Fig. 3 is the footprint pressure in the utility model section and contact width schematic diagram.

Specific embodiment

A kind of water pump sealing ring, with reference to Fig. 1, Fig. 2, water pump sealing ring is injection molding water pump sealing circle body 1, and water pump is close The two work cambered surfaces up and down of seal circle body 1 form single-peak structure 2 by three sections or more tangent arcs, this example is 5 sections of circular arcs Tangent structure.

Further, the inside and outside both sides of water pump seal ring coil 1 are equipped at intervals with the positioning for sealing ring and counterpart groove It prevents anti-dropout protrusion 3 that water pump sealing ring comes off from groove and sealing ring from assembling or when work slants to one for preventing The anti-protrusion 4 that skews, the diameter of anti-dropout protrusion 3 are more than the diameter of the anti-protrusion 4 that skews.

Fig. 3 is the CAE analysis that water pump seals ring cross-section working condition in pump working, and 5 be water pump cover groove, and 6 are Engine cylinder body bottom surface, 7 be water pump sealing ring, and 8 be water pump sealing ring and water pump cover contact stress curve, and 9 seal for water pump Circle and cylinder body contact stress curve, water pump sealing ring contact roomy with mating surface, and contact stress value is there are two peak values, effectively Increase the stability of sealing.

Claims (3)

1. a kind of water pump sealing ring, it is characterized in that the upper and lower two work cambered surface of the sealing ring is by three sections or more tangent circles Arc forms.

2. a kind of water pump sealing ring according to claim 1, it is characterized in that being equipped at intervals in the interior outside of sealing circle body anti- The protrusion that comes off and the anti-protrusion that skews.

3. a kind of water pump sealing ring according to claim 2, it is characterized in that the diameter of anti-dropout protrusion is convex more than preventing skewing The diameter risen.