CN2193444Y - Pump valve of well boring pump - Google Patents

Abstract

The utility model provides a novel pump valve used for well drilling pumps with various types. The lower guide righting mechanism of the original pump valve is cancelled by the novel pump valve used for well drilling pumps with various types, the flow cross section area of well drilling fluid passing through the novel pump valve used for well drilling pumps with various types is enlarged, the flow resistance of the well drilling fluid is reduced, and the opening and the closing of the novel pump valve used for well drilling pumps with various types are ideal and free. In addition, an impeller rib is designed below the bottom disk of the original valve core. When the well drilling fluid passes through the novel pump valve used for well drilling pumps with various types, the valve core and a sealing ring are pushed to do upward rotary movement, the abrasion of the contact position of the sealing ring and a valve seat is more homogeneous, and thereby, the service life of the valve seat is extended. The utility model has simple structure, novel design, easy processing and manufacture, and convenient use and maintenance. The favorable work performance of the novel pump valve used for well drilling pumps with various types obtains verification in practice.

Description

Pump valve of well boring pump

The utility model relates to a kind of novel pump valve that is used for all kinds drilling pump.

The THE MUD PUMP VALVES of using is divided into suction valve and expulsion valve at present.Suction valve is used to suck drilling fluid, and expulsion valve is used to discharge drilling fluid.For a long time, various types of drilling pumps move up and down along its center line for making valve body assembly (comprising seal ring, pressing plate, spool) in the course of the work, and all the upper and lower at valve body assembly has designed the motion guide righting mechanism.The guiding righting mechanism is that the valve core rod with valve body assembly upper end stretches in the polyurethane core in the pump valve gland, and the guiding righting rod of valve body assembly lower end stretches in the guiding centralizing bracket in the pump valve valve seat endoporus, is all set upright when valve body assembly is moved up and down.This design must cause guiding righting mechanism pine spacious, otherwise will cause the card of spraining.The spacious consequence of pine is not have effective guiding centralizing function, and the result of the card of spraining will make valve body assembly motion switch ideally.Because drilling fluid is to circulate in the passage between assembly and valve seat, and the guiding righting rod of valve body assembly lower end stretches in the interior guiding centralizing bracket of valve seat orifice, guiding centralizing bracket in the valve seat endoporus is because of placing the drilling liquid flow thorough fare, must reduce the actual internal area of drilling fluid, the circulating resistance of corresponding increase drilling fluid by pump valve.Concerning suction valve, the drilling pump suction performance is affected, the lighter makes that drilling pump work is undesired, vibrations are severe, weight person even can cause the breaking-up of drilling pump.In order to enlarge the actual internal area of drilling fluid by pump valve, also can take to enlarge the way of corresponding physical dimension, but the drilling pump volume is increased, weight increases, and cost rises.Use also proof of practice, after the valve seat damage of righting mechanism, the obstruction because of its guiding righting mechanism is difficult to extract replacing about having designed.

The purpose of this utility model provides the novel pump valve of a kind of drilling pump, it can make the pump valve valve body assembly along its center line ideal movements up and down, drilling fluid increases by the actual internal area of pump valve, during pump valve work simultaneously, valve body assembly becomes former moving up and rotates up motion, make the wearing and tearing of the seal ring of valve body assembly and valve seat contacting point evenly, can increase valve seat working life.

The utility model is achieved in that the following guiding righting mechanism that removes present THE MUD PUMP VALVES, and being set upright length, the guiding that goes up the guiding righting mechanism of pump valve increases, so both eliminated the constraint that repeats of moving, and guiding being set upright the fully assurance of getting back, and makes pump valve energy ideal movements switch.Owing to removed the following guiding righting mechanism of pump valve, drilling fluid must increase by the actual internal area of pump valve, and the last water-based of drilling pump can be improved simultaneously.In addition, newly designed the impeller muscle in former spool chassis lower end, when passing through pump valve, gives drilling fluid thrust of impeller muscle, make the valve body assembly of forming by spool, seal ring, pressing plate rotate up motion, seal ring contacts part wearing and tearing just relatively evenly with valve seat like this, has correspondingly increased pump valve working life.

The utility model is simple in structure, novel in design, be easy to manufacturing, use easy to maintenance.

Below in conjunction with the embodiment of accompanying drawing detailed description according to the novel pump valve of drilling pump that the utility model proposes.

Fig. 1 is the novel pump valve assembling of a drilling pump schematic representation.

Fig. 2 is a drilling pump new pump valve core structural drawing.

As shown in the figure: valve seat (2) is loaded in the valve seat orifice of the pump housing (1), and valve seat (2) appearance is taper, and endoporus top is taper hole, and is up big and down small, and the endoporus bottom is hole, isometrical garden.Seal ring (3) upper surface is the garden conical surface, combine with the garden conical surface under the pressing plate (4), lower surface is the garden conical surface, combine with the garden conical surface on spool (5) the awl dish, there is annular protrusion at its middle part, combine with the groove on spool (5) the awl dish conical surface, endoporus is hole, isometrical garden, combine with garden cylinder outside pressing plate (4) bottom, the appearance bottom is taper, and is up big and down small, combine with the taper hole top of valve seat (2), appearance top is up big and down small indent taper, and pressing plate (4) upper face is a hexahedron, and the middle part is a boss, the boss upper face is shape plane, garden, valve spring (6) is pressed on this plane, and the boss lower surface is a up big and down small garden conical surface, is pressed on the conical surface of seal ring (3) garden, top, the bottom appearance is an isometrical garden post, be contained in the hole, isometrical garden of seal ring (3), the endoporus car has box, twists with the pin thread of spool (5) valve rod and closes.Spool (5) divides valve rod and valve disc two-part, valve rod is on valve disc, one section garden cylindrical rod and polyurethane core (8) Spielpassung above it, bottom the other side of this garden cylindrical rod creates flat, for removing dress pressing plate clamping when (4), its post surface, garden, lower end car has that pin thread and pressing plate (4) endoporus box are stubborn to be closed; Valve disc is a taper, its upper end face is a garden planar annular, it below the planar annular of garden a up-small and down-big garden conical surface, combine with the conical surface under the seal ring (3), conical surface middle part in garden has annular groove one, cooperates with the annular protrusion at conical surface middle part under the seal ring (3), the outside, lower end of valve disc is a up big and down small conical surface, combine with valve seat (2) taper hole bottom, the impeller muscle of uniform 8 projectioies on the valve disc bottom face, the rotation direction of muscle rotation direction with valve spring (6) on its worm's eye view is consistent.Valve spring (6) is a compression spring, and the lower end is pressed on the shape plane, last table garden of pressing plate (4) middle part boss, and the upper end withstands on the shape plane, following table garden of gland (10) center tube boss.Pressure cap (7) appearance is an isometrical garden cylindricality, and endoporus is a box, is screwed on the pin thread of garden post outside gland (10) the center tube lower end, and the lower end is an illiteracy head, and covering centriciput has a through hole, and the valve rod of spool (5) passes from this through hole.Polyurethane core (8) is the garden tubular, the big footpath endoporus drive fit of outer garden and gland (10) center tube, endoporus and spool (5) be one section outer garden Spielpassung above the valve rod, the inner convex platform lower end surface of its upper-end surface and gland (10) center tube joins, and an illiteracy upper-end surface of lower end surface and pressure cap (7) lower end joins.Seal ring (9) both ends of the surface up and down is the plane, inside and outside be isometrical garden shape, its lower end and outer garden join with the corresponding endoporus step of the pump housing (1), upper end and interior garden join with the corresponding outer step of gland (10).Gland (10) is made up of lid and center tube two-part, the table of going up of lid is shape plane, garden, and planar central has a garden cylindrical end tangs, and boss center car has box thread, in the time will pulling up gland (10), a screw can be screwed in this box thread and gland (10) can be extracted; The appearance of lid is by waiting big footpath garden post and waiting path garden post to form a step, and the upper-end surface and the Nei Yuan of step and seal ring (9) join; The interior table top of lid is shape plane, garden, and top is hole, isometrical garden all around, and the bottom is a taper hole, and the aperture of taper hole is big down little, is the transition taper hole between hole, garden and the taper hole, and the aperture of transition taper hole is up big and down small; Center tube top is evenly equipped with four through holes, and the middle part appearance is an isometrical garden post, under the post of isometrical garden a boss is arranged, and table is taper on the boss, and tapered diameter is up-small and down-big, and the boss following table is the plane, garden, joins with valve spring (6); Center tube bottom car has pin thread, twists with pressure cap (7) box and closes; Table top is isometrical small garden hole in the center tube, and the bottom is isometrical Da Yuan hole, with the outer garden of polyurethane core (8) drive fit.Valve gap (11) lower end is a plane, is pressed in gland (10) and goes up on the Transverse plane, and its middle part is drilled with a hole, and gland (10) upper end boss stretches in this hole.

The work of THE MUD PUMP VALVES is achieved in that under external force, drilling fluid overcomes the deadweight of spool (5), seal ring (3) and pressing plate (4), overcome valve rod and the frictional force of polyurethane core (8) and the elastic force of valve spring (6) of spool (5), the valve disc of spool (5) is away from the inner conical surface of valve seat (2), drive seal ring (3), pressing plate (4), valve spring (6) simultaneously and move upward, at this moment pump valve is opened; After external force is removed, under the elastic force effect of the deadweight of spool (5), pressing plate (4), seal ring (3) and valve spring (6), the valve disc of spool (5) sits back near on valve seat (2) inner conical surface, seal ring (3), pressing plate (4), valve spring (6) move downward simultaneously, and pump valve cuts out.

Claims (1)

1, a kind of novel pump valve that is used for all kinds of drilling pumps, it is by the pump housing (1), seal ring (3), pressing plate (4), valve spring (6), pressure cap (7), polyurethane core (8), seal ring (9), gland (10), valve gap (11) is formed, it is characterized in that it also comprises valve seat (2) and spool (5), valve seat (2) is loaded in the valve seat orifice of the pump housing (1), its appearance is taper, endoporus top is up big and down small taper hole, the bottom is hole, isometrical garden, seal ring (3) upper surface is the garden conical surface, combine with the garden conical surface under the pressing plate (4), there is annular protrusion at its middle part, combine with the groove on spool (5) the awl dish conical surface, endoporus is hole, isometrical garden, combine with garden cylinder outside pressing plate (4) bottom, the appearance bottom is up big and down small taper, combine with the taper hole top of valve seat (2), there is a boss at pressing plate (4) middle part, the boss upper face is shape plane, garden, valve spring (6) is pressed on this plane, the boss lower surface is a up big and down small garden conical surface, be pressed on the conical surface of seal ring (3) garden, top, the bottom appearance is an isometrical garden post, be contained in the hole, isometrical garden of seal ring (3), endoporus is a box, twists with the pin thread of spool (5) valve rod and closes, and spool (5) divides valve rod and valve disc two-part, valve rod is on valve disc, one section garden cylindrical rod and polyurethane core (8) Spielpassung above it, bottom the other side of this garden cylindrical rod creates flat, clamping when removing dress pressing plate (4), its post surface, garden, lower end is a pin thread, close with pressing plate (4) endoporus box is stubborn, valve disc is a taper, and there is a up-small and down-big garden conical surface its upper end, combine with the conical surface under the seal ring (3), conical surface middle part, garden has annular groove one, combines with conical surface middle part annular protrusion under the seal ring (3), and outside, valve disc lower end is a up big and down small conical surface, combine with valve seat (2) taper hole bottom, the impeller muscle of uniform 8 projectioies on the valve disc bottom face, the rotation direction of the muscle rotation direction with valve spring (6) on its worm's eye view is consistent, and valve spring (6) is a compression spring, the lower end is pressed on the shape plane, last table garden of pressing plate (4) middle part boss, the upper end withstands on the shape plane, following table garden of gland (10) center tube boss, and pressure cap (7) appearance is an isometrical garden cylindricality, and endoporus is a box, twist on the pin thread of garden post outside gland (10) center tube lower end, the lower end is an illiteracy head, and covering centriciput has a through hole, and the valve rod of spool (5) passes from this through hole, polyurethane core (8) is the garden tubular, the big footpath endoporus drive fit of outer garden and gland (10) center tube, endoporus and spool (5) be one section outer garden Spielpassung above the valve rod, and the inner convex platform lower end surface of its upper-end surface and gland (10) center tube joins, an illiteracy upper-end surface of lower end surface and pressure cap (7) lower end joins, seal ring (9) both ends of the surface up and down is the plane, inside and outside be isometrical garden shape, its lower end and outer garden join with the corresponding endoporus step of the pump housing (1), upper end and interior garden join with the corresponding outer step of gland (10), gland (10) is made up of lid and center tube two-part, and the table of going up of lid is shape plane, garden, and planar central has a garden cylindrical end tangs, the boss center is a box, the appearance of lid is by waiting big footpath garden post and waiting path garden post to form a step, and the upper-end surface and the Nei Yuan of step and seal ring (9) join, uniform four through holes in center tube top, the middle part is an isometrical garden post, under the post of isometrical garden a boss is arranged, table is taper on the boss, and lower surface is the plane, garden, join with valve spring (6), the garden car has pin thread outside the center tube bottom, twists with pressure cap (7) box and closes, and table top is isometrical small garden hole in the center tube, the bottom is isometrical Da Yuan hole, with the outer garden of polyurethane core (8) post drive fit, valve gap (11) lower end is a plane, is pressed in gland (10) and goes up on the Transverse plane, its middle part is drilled with a hole, and gland (10) upper end boss stretches in this hole.

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