CN109737049B - Plunger pump hydraulic assembly - Google Patents
Plunger pump hydraulic assembly Download PDFInfo
- Publication number
- CN109737049B CN109737049B CN201910040982.XA CN201910040982A CN109737049B CN 109737049 B CN109737049 B CN 109737049B CN 201910040982 A CN201910040982 A CN 201910040982A CN 109737049 B CN109737049 B CN 109737049B
- Authority
- CN
- China
- Prior art keywords
- liquid
- groove
- liquid suction
- suction valve
- hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The embodiment of the invention discloses a plunger pump hydraulic assembly, which comprises a pump head body, wherein the pump head body is provided with a pump head hole, a liquid suction valve seat, a liquid suction spring, a liquid discharge spring, a liquid suction valve core, a liquid suction valve body, a liquid discharge valve seat, a liquid discharge valve core and a liquid discharge spring seat, wherein the liquid suction valve seat, the liquid suction spring and the liquid discharge spring seat are sequentially inserted into the pump head hole in a direction away from the liquid suction valve seat; the suction valve comprises a pump head hole, and is characterized in that a first supporting platform and a second supporting platform which are arranged oppositely are arranged on the circumferential hole wall of the pump head hole, the suction valve seat comprises a pipe body, the end part of the pipe body is provided with a turned edge, the pipe body is inserted between the first supporting platform and the second supporting platform, the turned edge is respectively pressed on the first supporting platform and the second supporting platform, two ends of a suction spring are respectively abutted against a suction valve core and a suction valve body, and two ends of a discharge spring are respectively abutted against the discharge valve core and a discharge spring seat. The embodiment of the invention can reduce the arrangement of parts, reduce the volume, reduce the self weight and improve the assembly efficiency.
Description
Technical Field
The invention relates to the technical field of plunger pumps, in particular to a plunger pump hydraulic assembly.
Background
The reciprocating plunger pump consists of a speed reducing mechanism and a hydraulic assembly, and the hydraulic assembly is used for converting mechanical energy into fluid pressure energy. In the prior art, a hydraulic assembly comprises an upper gland, a pump head main body, a liquid suction box and a liquid suction valve seat supporting ring connected between the pump head main body and the liquid suction box. Wherein, be provided with the pump head hole in the pump head main part, imbibition disk seat, imbibition case, imbibition valve spring, flowing back case, flowing back disk seat, flowing back valve spring and flowing back valve spring holder etc. all install in the pump head hole.
During assembly, a liquid suction valve seat and a liquid suction valve core are firstly arranged in a hole at the bottom of the pump head main body and are fixed through a liquid suction valve seat support ring, a liquid suction box is fixed on the liquid suction valve seat support ring, then a liquid suction valve spring, a liquid discharge valve seat, a liquid discharge valve spring and a liquid discharge valve spring seat are sequentially arranged in the hole at the upper part of the pump head main body from bottom to top, and finally an upper gland is pressed on the liquid discharge valve spring seat. Wherein, the direction close to the liquid suction box is 'down', and the direction far away from the liquid suction box is 'up'.
The inventor discovers that the liquid suction valve seat and the liquid suction valve core in the prior art are fixed by the liquid suction valve support ring, the liquid suction valve seat and the liquid suction valve core are assembled by a plurality of assembling parts, have large volume, large weight and low assembling efficiency, and the liquid discharge valve core has large size, is poor in stability and easy to fatigue fracture under the action of frequent impact force of high-pressure liquid flow, and easily causes damage to a plunger and a transmission part.
Disclosure of Invention
Accordingly, the present invention is directed to a hydraulic assembly of a plunger pump to solve the above-mentioned problems.
The embodiment of the invention provides a plunger pump hydraulic assembly, which comprises a pump head body, wherein a pump head hole is formed in the pump head body, and the plunger pump hydraulic assembly further comprises: the liquid suction valve seat, the liquid suction spring, the liquid discharge spring and the liquid suction valve core, the liquid suction valve body, the liquid discharge valve seat, the liquid discharge valve core and the liquid discharge valve spring seat are sequentially inserted into the pump head hole towards the direction far away from the liquid suction valve seat; the suction valve is characterized in that a first supporting platform and a second supporting platform which are arranged oppositely are arranged on the circumferential hole wall of the pump head hole, the suction valve seat comprises a pipe body, the end part of the pipe body is provided with a flanging, the pipe body is inserted between the first supporting platform and the second supporting platform, the flanging is respectively pressed on the first supporting platform and the second supporting platform, two ends of the suction spring are respectively abutted against the suction valve core and the suction valve body, and two ends of the liquid discharge spring are respectively abutted against the liquid discharge valve core and the liquid discharge valve spring seat.
Optionally, a first clamping groove is formed in the liquid suction valve body, a second clamping groove is formed in the liquid suction valve core, and two ends of the liquid suction spring are clamped into the first clamping groove and the second clamping groove respectively.
Optionally, the imbibition valve body includes the base plate of pegging graft with the pump head hole, relative first face and the second face that sets up have on the base plate, first face with flowing back disk seat butt, be provided with one-level boss portion on the second face, be provided with second grade boss portion on the one-level boss portion, be provided with tertiary boss portion on the second grade boss portion, be provided with the slot on the tertiary boss portion, the imbibition case is pegged graft in the slot, be provided with the opening that supplies the circulation of liquid on the tank bottom of slot, the opening runs through the tank bottom and the first face of slot, base plate, one-level boss portion, second grade boss portion, tertiary boss portion are coaxial, and the external diameter reduces gradually, first draw-in groove sets up on second grade boss portion.
Optionally, a recessed portion is disposed on the first plate surface of the base plate, the recessed portion is coaxial and communicated with the circulation hole, a plurality of liquid passing holes are disposed on the liquid suction valve body, the plurality of liquid passing holes are distributed along the circumferential direction of the recessed portion, and the liquid passing holes are communicated with the side surface, away from the first plate surface, of the secondary boss portion and the recessed portion.
Optionally, an annular supporting table is arranged on the circumferential inner wall of the pump head hole, the second-stage boss portion is connected with the annular supporting table in an inserting mode, and the substrate abuts against the annular supporting table.
Optionally, the pipette tip further comprises a guide sleeve, the guide sleeve is inserted into the insertion slot, the pipette tip is pressed on the pipette seat, and a guide rod of the pipette tip is inserted into the guide sleeve and can move in the guide sleeve.
Optionally, the pipe body is in interference fit with the first support table and the second support table, and the liquid suction valve core, the liquid suction valve body, the liquid discharge valve seat, the liquid discharge valve core, the liquid discharge valve spring seat and the pump head hole are in clearance fit.
Optionally, a third clamping groove is formed in the liquid discharge valve core, a mounting groove is formed in the liquid discharge valve spring seat, and two ends of the liquid discharge spring are clamped into the third clamping groove and the mounting groove respectively.
Optionally, the liquid discharge valve seat includes a groove body, a mounting hole is provided on the bottom of the groove body, the liquid discharge valve core is inserted into the mounting hole, the liquid discharge valve spring seat is installed in the groove body, a fourth clamping groove is provided on the liquid discharge valve spring seat, the mounting groove is provided on the groove bottom of the fourth clamping groove, the fourth clamping groove covers the liquid discharge valve core, and the end surface of the groove wall of the fourth clamping groove is pressed on the groove bottom of the groove body.
Optionally, the flowing back valve spring holder includes bottom plate, spliced pole and fourth draw-in groove, the both ends of spliced pole are connected with the tank bottom of bottom plate and fourth draw-in groove is perpendicular respectively, the bottom plate is provided with the portion of leaning on towards on the circumference border of the face of spliced pole, the portion of leaning on is pressed and is covered on the notch border of cell body.
The plunger pump hydraulic assembly provided by the embodiment of the invention has the advantages that the first supporting table and the second supporting table are arranged on the wall of the pump head hole, the liquid suction valve seat is inserted between the two supporting tables and is pressed on the two supporting tables through the flanging, so that the liquid suction valve seat is fixed, compared with the prior art that the liquid suction valve is fixed through the liquid suction valve fixing ring, the arrangement of parts can be reduced, the volume is reduced, the dead weight is reduced, and the assembly efficiency is improved; and, through setting up the imbibition valve body, in the pump head hole of equal volume, can reduce the size of each part, reduce the dead weight of each part, reduce the area of contact of the hydraulic pressure impact force that the case receives, avoid because the great impact inertia that the case dead weight brought, reduce the fault rate of case, make the case keep better stability, thereby make the sealed better between case and the disk seat, improve the start-stop characteristic of case and disk seat, reduce the leakage rate, improve the volumetric efficiency, simple structure simultaneously, and convenient for operation, and there is not special requirement on the dismouting, be convenient for maintenance and change.
Drawings
Fig. 1 is a schematic structural diagram of a plunger pump hydraulic assembly according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view of a liquid suction valve body according to an embodiment of the present invention.
Detailed Description
The technical solution of the present invention is described in detail below with reference to the accompanying drawings and specific embodiments. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
Fig. 1 shows a schematic structural diagram of a plunger pump hydraulic assembly according to an embodiment of the present invention, and as shown in fig. 1, the plunger pump hydraulic assembly according to an embodiment of the present invention includes a pump head body 1, where the pump head body 1 has a pump head hole 103.
The plunger pump hydraulic assembly further comprises: a liquid suction valve seat 8, a liquid suction spring 11, a liquid discharge spring 3, and a liquid suction valve core 7, a liquid suction valve body 6, a liquid discharge valve seat 12, a liquid discharge valve core 4, and a liquid discharge valve spring seat 2 which are inserted in the pump head hole 103 in this order in a direction away from the liquid suction valve seat 8.
The circumferential hole wall of the pump head hole 103 is provided with a first supporting platform 102 and a second supporting platform which are arranged oppositely.
As shown in fig. 1, the first support 102 and the second support constitute an annular support. In this embodiment, the first support table 102 and the second support table are integrally formed.
The liquid suction valve seat 8 comprises a tube body 81, and a flange 82 is arranged at the end part of the tube body 81. In the present embodiment, the flange 82 is provided in the circumferential direction of the end of the tube 81, and the flange 82 is perpendicular to the outer wall of the tube 81.
The pipe body 81 is inserted between the first supporting platform 102 and the second supporting platform, and the flanges 82 are respectively pressed on the first supporting platform 102 and the second supporting platform. The contact surfaces of the flange 82 with the first support platform 102 and the second support platform are flat.
Two ends of the liquid suction spring 11 are respectively abutted against the liquid suction valve core 7 and the liquid suction valve body 6, and two ends of the liquid discharge spring 3 are respectively abutted against the liquid discharge valve core 4 and the liquid discharge valve spring seat 2.
During assembly, the liquid suction valve seat 8 is inserted between the first supporting platform 102 and the second supporting platform, and then the liquid suction valve core 7, the liquid suction spring 11, the liquid suction valve body 6, the liquid discharge valve seat 12, the liquid discharge valve core 4, the liquid discharge spring 3 and the liquid discharge valve spring seat 2 are inserted into the pump head hole 103 in sequence.
The plunger pump hydraulic assembly provided by the embodiment of the invention has the advantages that the first supporting table and the second supporting table are arranged on the wall of the pump head hole, the liquid suction valve seat is inserted between the two supporting tables and is pressed on the two supporting tables through the flanging, so that the liquid suction valve seat is fixed.
In addition, the plunger pump hydraulic assembly provided by the embodiment of the invention is provided with the liquid suction valve body in the pump head hole with the same volume, so that the sizes of all parts can be reduced, the dead weight of all parts is reduced, the contact area of a valve core (such as a liquid discharge valve core and a liquid suction valve core) subjected to hydraulic impact force is reduced, larger impact inertia caused by the dead weight of the valve core is avoided, the fault rate of the valve core is reduced, and the valve core keeps better stability, so that the sealing between the valve core and a valve seat is better, the opening and closing characteristics of the valve core and the valve seat are improved, the leakage rate is reduced, the volume efficiency is improved, meanwhile, the structure is simple, the operation is convenient, no.
Furthermore, the liquid suction valve core 7, the liquid suction spring 11, the liquid suction valve body 6, the liquid discharge valve seat 12, the liquid discharge valve core 4, the liquid discharge spring 3, the liquid discharge valve spring seat 2 and the liquid suction valve seat 8 are coaxial, so that the volume of the plunger pump hydraulic assembly can be further reduced, the self weight is reduced, and the assembly and disassembly are convenient.
Preferably, as shown in fig. 2, a first locking groove 631 is disposed on the liquid suction valve body 6, and a second locking groove is disposed on the liquid suction valve core 7.
Both ends of the liquid suction spring 11 are respectively clamped into the first clamping groove 631 and the second clamping groove, so that the stability of the liquid suction spring 11 during high-frequency action can be improved.
Similarly, a third clamping groove is formed in the liquid discharge valve core 4, a mounting groove 21 is formed in the liquid discharge valve spring seat 2, and two ends of the liquid discharge spring 11 are clamped into the third clamping groove and the mounting groove 211 respectively, so that the stability of the liquid discharge spring 3 during high-frequency action is improved.
In a preferred embodiment of the present invention, as shown in fig. 2, the liquid suction valve body 6 includes a base plate 61 inserted into the pump head hole 103, the base plate 61 has a first plate surface and a second plate surface that are oppositely disposed, and the first plate surface abuts against the liquid discharge valve seat 8.
As shown in fig. 1, the first plate surface is covered on the end of the pipe 81 and is in planar contact with the end surface of the pipe 81 of the liquid discharge valve seat 8, so that not only can the sealing performance be increased, but also the pipe diameter of the pipe 81 is large, the liquid inlet amount can be increased, and the requirements of a plunger pump (such as an emulsion pump under a coal mine) on a large-flow hydraulic assembly under complex working conditions can be well met in due time.
In a preferred embodiment of the present invention, the tube 81 is a circular tube.
The second plate surface is provided with a first-stage boss part 62, the first-stage boss part 62 is provided with a second-stage boss part 63, the second-stage boss part 63 is provided with a third-stage boss part 64, and the third-stage boss part 64 is provided with a slot 641.
The liquid suction valve core 7 is inserted in the slot 641, a circulation hole 67 for liquid circulation is arranged on the bottom of the slot 641, and the circulation hole 67 penetrates through the bottom of the slot 641 and the first plate surface.
The base plate 61, the first-stage boss part 62, the second-stage boss part 63 and the third-stage boss part 64 are coaxial, the three boss parts are all cylinders, and the outer diameters of the three boss parts are gradually reduced.
The first catching groove 631 is provided on the secondary boss portion 63, and the tertiary boss portion 64 is located inside the liquid suction spring 11.
Through setting up imbibition valve body 6 into multistage boss structure, can increase its length, reduce the size of flowing back case 4 and imbibition case 7, further reduce the area of contact that flowing back case 4 and imbibition case 7 receive the hydraulic pressure impact force, avoid because the great impact inertia that the dead weight brought, reduce the fault rate of flowing back case 4 and imbibition case 7.
Further, the insertion groove 641 and the circulation hole 67 are coaxial with the third-stage boss portion 64 for easy arrangement.
Preferably, as shown in fig. 2, a concave portion 66 is provided on the first plate surface of the substrate 61, and the concave portion 66 is coaxial with and communicates with the flow hole 67. In the present embodiment, the recess 66 is a cylinder.
Be provided with a plurality of liquid holes 65 of crossing on the imbibition valve body 6, it is a plurality of it can follow to cross liquid holes 65 the circumference evenly distributed of depressed part 66, cross liquid holes 65 intercommunication the side that first face was kept away from to second grade boss portion 63 with depressed part 66.
By providing a plurality of liquid passing holes 65, the flow area can be increased, and the flow rate can be increased.
Further, a first groove 611 is formed in the circumferential edge of the base plate 61, and a sealing strip is embedded in the first groove 611 to increase the sealing performance between the base plate 61 and the wall of the pump head hole 103.
Further, an annular support table 101 is arranged on the circumferential inner wall of the pump head hole 103, the second-stage boss portion 63 is inserted into the annular support table 101, the third-stage boss portion 64 penetrates out of the annular support table 101, and the substrate 61 abuts against the annular support table 101.
The mounting security of the suction valve body 6 can be increased by providing the annular support base 101.
As shown in fig. 1, the contact surface of the annular support table 101 and the secondary boss portion 63 is a flat surface to increase the sealing performance.
Wherein, the annular support platform 101 and the first support platform 102 are located at two sides of the plunger cavity 13.
Preferably, the plunger pump hydraulic assembly further comprises a guide sleeve 5, and the guide sleeve 5 is inserted into the insertion groove 641.
The liquid suction valve core 7 is pressed on the liquid suction valve seat 8, and the liquid suction valve core and the liquid suction valve seat are in plane contact, so that the sealing performance is further improved.
The end of the guide rod of the liquid suction valve core 7 is inserted into the guide sleeve 5 and can move in the length direction of the guide rod in the guide sleeve 5.
Through setting up uide bushing 5, can guarantee that imbibition case 7 can not take place the skew in the moving path when high frequency moves, guarantee the stability of work.
In a preferred embodiment of the present invention, the material of the liquid suction valve core 7 is stainless steel, and the material of the guide sleeve 5 is copper, so as to avoid the guide jamming of the liquid suction valve core 7 and the guide sleeve 5, and ensure the smooth proceeding of the guide.
Preferably, the insertion groove 641 extends into the secondary boss portion 63, and a detachment hole 632 is disposed on a groove wall of the insertion groove 641 of the secondary boss portion 63, and the detachment hole 632 is disposed between the first blocking groove 631 and the primary boss portion 62 to facilitate detachment of the guide sleeve 5.
Optionally, a matching hole corresponding to the detaching hole 632 is formed in the outer wall of the guide sleeve 5, so that the detaching efficiency of the guide sleeve 5 can be further improved.
As shown in fig. 2, the detaching hole 632 has two, and the two detaching holes 632 are oppositely disposed.
Further, the pipe 81 is in interference fit with the first support table 102 and the second support table, and the liquid suction valve core 7, the liquid suction valve body 6, the liquid discharge valve seat 12, the liquid discharge valve core 4, the liquid discharge valve spring seat 2 and the pump head hole 103 are in clearance fit, so that the assembly and disassembly of each component are facilitated, and the assembly and disassembly efficiency is improved.
Furthermore, the liquid discharge valve seat 12 includes a groove body, a mounting hole 121 is formed in the groove bottom of the groove body, and the liquid discharge valve core 4 is inserted into the mounting hole 121.
In this embodiment, the portion of the drain valve core 4 that fits into the mounting hole 121 is a cone, and the side surface of the cone abuts against the edge of the mounting hole 121.
The liquid discharge valve spring seat 2 is installed in the groove body, a fourth clamping groove 21 is formed in the liquid discharge valve spring seat 2, and the installation groove 211 is formed in the bottom of the fourth clamping groove 21.
The fourth clamping groove 21 covers the liquid discharge valve core, and the end surface of the groove wall of the fourth clamping groove 21 is pressed on the groove bottom of the groove body.
By installing the drain valve spring seat 2 in the groove, the drain valve seat 12, the drain valve spring seat 2, and the drain valve body 4 can be integrated when being disassembled, thereby further improving the disassembling efficiency. In addition, the fourth clamping groove 21 also has a certain limiting effect on the liquid discharge valve core 4, so that the liquid discharge valve core 4 is prevented from deviating during high-frequency action, and the working stability is ensured.
Preferably, the drain valve spring seat 2 includes a bottom plate 23, a connecting post 22 and a fourth catching groove 21.
The both ends of spliced pole 22 are connected with the tank bottom of bottom plate 23 and fourth draw-in groove 21 is perpendicular respectively, bottom plate 23 is provided with on the circumference border of the face of spliced pole 22 and supports portion 24, support portion 24 and press and cover on the notch border of cell body.
The abutting part of the bottom plate 23 abuts against the edge of the notch of the groove body, so that the liquid discharge valve seat 12 forms a relatively sealed space, and the sealing performance of the liquid discharge valve seat 12 is improved.
Further, the butt joint face of butt joint portion 24 and the notch border butt of cell body has the second recess, and the embedded sealing strip that is equipped with of second recess can further improve the leakproofness between the notch of butt joint portion 24 and cell body.
Preferably, a third groove 122 is formed in the circumferential direction of the outer groove wall of the groove body, and a sealing strip is also embedded in the third groove 122 to improve the sealing property between the groove body and the pump head hole 103.
Further, plunger pump hydraulic assembly still includes upper gland 10, upper gland 10 lid is established on bottom plate 23, and upper gland 10 passes through bolt 9 to be installed on pump head body 1.
When the plunger pump works, the speed reducing mechanism drives the plunger to move towards the inside of the plunger cavity 13, the volume of the inside of the plunger cavity 13 is reduced, liquid in the pump head hole 103 is pressurized to form high-pressure liquid, the hydraulic pressure of the first upper cavity above the liquid suction valve core 7 is higher than that of the first lower cavity below the liquid suction valve seat 8, the liquid suction spring 11 does not act, and the liquid suction valve core 7 is closed.
Meanwhile, the hydraulic pressure of the second lower cavity below the liquid discharge valve core 4 is higher than the hydraulic pressure of the second upper cavity above the liquid discharge valve core 4, the liquid discharge spring 3 is compressed, the liquid discharge valve core 4 is opened, the high-pressure liquid of the second lower cavity is discharged from the annular cavity between the liquid discharge valve core 4 and the liquid discharge valve seat 12, and at the moment, a liquid discharge stroke is completed.
On the contrary, when the plunger moves outwards away from the plunger cavity 13, the volume in the plunger cavity 13 is increased to form vacuum, the hydraulic pressure of the first lower cavity is higher than that of the first upper cavity, the liquid suction spring 11 is compressed, the liquid suction valve core 7 is opened, the high-pressure liquid of the first lower cavity is sucked from between the liquid suction valve core 7 and the liquid suction valve seat 8 and is discharged into an annular cavity formed by the liquid discharge valve seat 12 and the liquid discharge valve core 4 from the flow hole 67, the liquid passing hole 65 and the concave part 66 on the liquid suction valve body 6; meanwhile, the hydraulic pressure of the second upper cavity is higher than that of the second lower cavity, the liquid discharge valve core 4 is closed, and at the moment, a liquid suction stroke is completed; the liquid suction process and the liquid discharge process are finished interactively at a certain frequency along with the movement of the plunger.
The technical solutions of the present invention have been described in detail with reference to specific embodiments, which are used to help understand the ideas of the present invention. The derivation and modification made by the person skilled in the art on the basis of the specific embodiment of the present invention also belong to the protection scope of the present invention.
Claims (7)
1. The utility model provides a plunger pump hydraulic assembly, includes the pump head body, the pump head body is last to have a pump head hole, its characterized in that still includes: the liquid suction valve seat, the liquid suction spring, the liquid discharge spring and the liquid suction valve core, the liquid suction valve body, the liquid discharge valve seat, the liquid discharge valve core and the liquid discharge valve spring seat are sequentially inserted into the pump head hole towards the direction far away from the liquid suction valve seat; the peripheral hole wall of the pump head hole is provided with a first supporting platform and a second supporting platform which are oppositely arranged, the liquid suction valve seat comprises a pipe body, the end part of the pipe body is provided with a flanging, the pipe body is inserted between the first supporting platform and the second supporting platform, the flanging is respectively pressed on the first supporting platform and the second supporting platform, two ends of the liquid suction spring are respectively abutted against the liquid suction valve core and the liquid suction valve body, and two ends of the liquid discharge spring are respectively abutted against the liquid discharge valve core and the liquid discharge valve spring seat;
a first clamping groove is formed in the liquid suction valve body, a second clamping groove is formed in the liquid suction valve core, and two ends of the liquid suction spring are clamped into the first clamping groove and the second clamping groove respectively;
the imbibition valve body comprises a base plate inserted in a pump head hole, a first plate surface and a second plate surface which are oppositely arranged are arranged on the base plate, the first plate surface is abutted to the imbibition valve seat, a first-stage boss portion is arranged on the second plate surface, a second-stage boss portion is arranged on the first-stage boss portion, a third-stage boss portion is arranged on the second-stage boss portion, an insertion groove is formed in the third-stage boss portion, the imbibition valve core is inserted in the insertion groove, a circulation hole for liquid circulation is formed in the groove bottom of the insertion groove, the circulation hole penetrates through the groove bottom of the insertion groove and the first plate surface, the base plate, the first-stage boss portion, the second-stage boss portion and the third-stage boss portion are coaxial, the outer diameter of the base plate is;
the guide sleeve is inserted into the slot, the imbibition valve core is pressed on the imbibition valve seat, and a guide rod of the imbibition valve core is inserted into the guide sleeve and can move in the guide sleeve; the slot extends to in the second grade boss portion, be located and be provided with the disassembly hole on the cell wall of the slot in the second grade boss portion, the disassembly hole is located between first draw-in groove and the first grade boss portion, is provided with the matching hole that corresponds with the disassembly hole on the outer wall of uide bushing.
2. The plunger pump hydraulic assembly as recited in claim 1, wherein the first plate surface of the base plate is provided with a recessed portion, the recessed portion is coaxial and communicated with the flow hole, the liquid suction valve body is provided with a plurality of liquid passing holes, the plurality of liquid passing holes are distributed along a circumferential direction of the recessed portion, and the liquid passing holes communicate a side surface of the secondary boss portion away from the first plate surface with the recessed portion.
3. The plunger pump hydraulic assembly as recited in claim 1, wherein an annular support platform is disposed on a circumferential inner wall of the pump head hole, the secondary boss portion is inserted into the annular support platform, and the base plate abuts against the annular support platform.
4. The plunger pump hydraulic assembly of claim 1, wherein the tube is in interference fit with the first support platform and the second support platform, and the fluid suction valve core, the fluid suction valve body, the fluid discharge valve seat, the fluid discharge valve core, the fluid discharge valve spring seat and the pump head hole are in clearance fit.
5. A plunger pump hydraulic assembly as claimed in any one of claims 1 to 4 wherein a third detent is provided on the discharge spool and a mounting groove is provided on the discharge valve spring seat, the ends of the discharge spring being engaged in the third detent and the mounting groove respectively.
6. The plunger pump hydraulic assembly as recited in claim 5, wherein the drain valve seat comprises a groove body, a mounting hole is formed in the bottom of the groove body, the drain valve element is inserted into the mounting hole, the drain valve spring seat is mounted in the groove body, a fourth clamping groove is formed in the drain valve spring seat, the mounting groove is formed in the groove bottom of the fourth clamping groove, the fourth clamping groove covers the drain valve element, and an end face of the groove wall of the fourth clamping groove presses against the groove bottom of the groove body.
7. The plunger pump hydraulic assembly as claimed in claim 6, wherein the drain valve spring seat comprises a bottom plate, a connecting column and a fourth clamping groove, two ends of the connecting column are respectively and vertically connected with the bottom of the bottom plate and the bottom of the fourth clamping groove, a circumferential edge of the surface of the bottom plate facing the connecting column is provided with a leaning portion, and the leaning portion is pressed on the edge of a notch of the groove body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910040982.XA CN109737049B (en) | 2019-01-16 | 2019-01-16 | Plunger pump hydraulic assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910040982.XA CN109737049B (en) | 2019-01-16 | 2019-01-16 | Plunger pump hydraulic assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109737049A CN109737049A (en) | 2019-05-10 |
| CN109737049B true CN109737049B (en) | 2021-04-13 |
Family
ID=66365049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910040982.XA Active CN109737049B (en) | 2019-01-16 | 2019-01-16 | Plunger pump hydraulic assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109737049B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004257296A (en) * | 2003-02-25 | 2004-09-16 | Maruyama Mfg Co Ltd | Valve system for reciprocating pump |
| CN201836040U (en) * | 2010-10-29 | 2011-05-18 | 成都西南水泵厂 | Hydraulic cylinder used for high-pressure reciprocating pump |
| CN105756880A (en) * | 2016-04-15 | 2016-07-13 | 宁波合力机泵有限公司 | Reciprocating plunger pump |
| CN105952633A (en) * | 2016-07-07 | 2016-09-21 | 天津市海盛泵业制造有限公司 | Straight-through combination valve applied to high-pressure reciprocation plunger pump hydraulic end |
| CN107842493A (en) * | 2017-10-24 | 2018-03-27 | 北京天地玛珂电液控制系统有限公司 | Fluid end assembly and the plunger pump for including it |
-
2019
- 2019-01-16 CN CN201910040982.XA patent/CN109737049B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004257296A (en) * | 2003-02-25 | 2004-09-16 | Maruyama Mfg Co Ltd | Valve system for reciprocating pump |
| CN201836040U (en) * | 2010-10-29 | 2011-05-18 | 成都西南水泵厂 | Hydraulic cylinder used for high-pressure reciprocating pump |
| CN105756880A (en) * | 2016-04-15 | 2016-07-13 | 宁波合力机泵有限公司 | Reciprocating plunger pump |
| CN105952633A (en) * | 2016-07-07 | 2016-09-21 | 天津市海盛泵业制造有限公司 | Straight-through combination valve applied to high-pressure reciprocation plunger pump hydraulic end |
| CN107842493A (en) * | 2017-10-24 | 2018-03-27 | 北京天地玛珂电液控制系统有限公司 | Fluid end assembly and the plunger pump for including it |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109737049A (en) | 2019-05-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11519405B2 (en) | Valve spring seat sleeve, valve assembly and plunger pump | |
| US20220316461A1 (en) | Plunger, hydraulic end and plunger pump | |
| CN109737049B (en) | Plunger pump hydraulic assembly | |
| CN201896738U (en) | Combination valve of high-pressure water-injection pump | |
| CN109458325B (en) | Combined valve applied to double-acting reciprocating pump | |
| US20230366394A1 (en) | Emulsion plunger pump and pump head assembly thereof | |
| CN201972901U (en) | Hydraulic end structure of hydraulic diaphragm type reciprocating pump capable of rapidly replacing diaphragm | |
| CN213870247U (en) | Hydraulic end of three-plunger reciprocating ultrahigh pressure plunger pump | |
| CN215719344U (en) | Piston structure of liquid-driven compressor | |
| CN102108961B (en) | Hydraulic end structure of hydraulic diaphragm-type reciprocating pump capable of replacing diaphragm rapidly | |
| CN111852811B (en) | Small-size domestic suction pump | |
| CN111608903A (en) | Liquid suction and discharge valve and working method thereof | |
| CN208605831U (en) | A kind of punch welding pump stabilizer blade and the punch welding pump using it | |
| CN216554364U (en) | High-pressure plunger pump | |
| CN112253446B (en) | Quick assembling and disassembling valve group, reciprocating pump hydraulic end and disassembling method | |
| CN212717024U (en) | High-pressure water jet reciprocating type three-cylinder plunger hydraulic end | |
| CN220354712U (en) | Kiwi fruit base facility water pipe booster | |
| CN203570574U (en) | Check valve structure capable of being disassembled and assembled rapidly | |
| CN218118023U (en) | Reciprocating pump hydraulic end mounting structure | |
| CN217841981U (en) | Valve cover of plunger pump | |
| CN113294587B (en) | Bellows type metal seal valve | |
| CN218953547U (en) | Sealing structure between pump body water inlet joint and pump body water outlet joint | |
| CN220118253U (en) | Novel electromagnetic water pump | |
| CN215762127U (en) | Air compressor piston device | |
| CN211231996U (en) | Butt welding high-pressure flange with good sealing performance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 101399 No.27, Linhe Development Zone, Shunyi District, Beijing Patentee after: Beijing Tianma Zhikong Technology Co.,Ltd. Patentee after: Beijing coal technology Tianma Automation Technology Co., Ltd Address before: No.131, ground floor, Tiandi building, No.5, qingniangou East Road, Hepingli, Chaoyang District, Beijing 100013 Patentee before: BEIJING TIANDI-MARCO ELECTRO-HYDRAULIC CONTROL SYSTEM Co.,Ltd. Patentee before: Beijing coal technology Tianma Automation Technology Co., Ltd |
|
| CP03 | Change of name, title or address |