CN202811331U - Hydraulic end for emulsion pumps - Google Patents
Hydraulic end for emulsion pumps Download PDFInfo
- Publication number
- CN202811331U CN202811331U CN201220475368.XU CN201220475368U CN202811331U CN 202811331 U CN202811331 U CN 202811331U CN 201220475368 U CN201220475368 U CN 201220475368U CN 202811331 U CN202811331 U CN 202811331U
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- Prior art keywords
- valve
- valve seat
- fluid
- liquid
- seat
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Abstract
The utility model provides a hydraulic end for emulsion pumps, wherein cross stress cannot be concentrated on a valve body of the hydraulic end, and the service life of the hydraulic end can be prolonged. The hydraulic end for emulsion pumps comprises the valve body, an inlet valve seat, an outlet valve seat, an inlet valve and an outlet valve, wherein the inlet valve seat and the outlet valve seat are arranged in the valve body, the inlet valve and the outlet valve are respectively matched with the inlet valve seat and the outlet valve seat, an inlet spring which can ensure that the inlet valve and the inlet valve seat can be in tight contact with each other in a normal state is arranged between the inlet valve seat and the inlet valve, an outlet spring which can ensure that the outlet valve and the outlet valve seat can be in tight contact with each other in a normal state is arranged between the outlet valve seat and the outlet valve, and the inlet valve seat, the outlet valve seat, the inlet valve and the outlet valve are coaxial.
Description
Technical field
The utility model relates to the fluid end of emulsion pump.
Background technique
Emulsion pump is used for coal-face, and for hydraulic support provides emulsified liquid, it comprises crankshaft ﹠ connecting, plunger, fluid end etc.Its working principle moves reciprocatingly by the plunger that rotarily drives of bent axle, realizes imbibition and discharge opeing by fluid end.
Existing fluid end, comprise valve body, be arranged on the feed liquor valve seat in the valve body, the fluid valve seat, with the feed liquor valve seat, the liquid feed valve that the fluid valve seat matches respectively, liquid valve, when between feed liquor valve seat and liquid feed valve, being provided with in normality so that the feed liquor spring that liquid feed valve contacts with the feed liquor valve base sealing, when between fluid valve seat and liquid valve, being provided with in normality so that the fluid spring that liquid valve contacts with the fluid valve base sealing, the axis of its liquid feed valve and liquid valve generally is " ten ", " T ", tactic patterns such as " L ", therefore when liquid sucking-discharging, valve body is subject to cross stress, be prone to the concentrated fatigue cracking that causes of stress, reduce fluid end, the working life of emulsion pump.In addition, the fluid end of this structure also is inconvenient to dismantle, keep in repair and maintain.
Summary of the invention
The purpose of this utility model provides a kind of valve body the fluid end that the emulsion pump in fluid end working life was concentrated, can be improved to cross stress can not occur.
The fluid end of this emulsion pump, comprise valve body, be arranged on feed liquor valve seat, fluid valve seat in the valve body, the liquid feed valve, the liquid valve that match respectively with feed liquor valve seat, fluid valve seat, when between feed liquor valve seat and liquid feed valve, being provided with in normality so that the feed liquor spring that liquid feed valve contacts with the feed liquor valve base sealing, so that the fluid spring that liquid valve contacts with the fluid valve base sealing, the axis of feed liquor valve seat, fluid valve seat, liquid feed valve, liquid valve is all on same axis when being provided with in normality between fluid valve seat and liquid valve.
The beneficial effects of the utility model: the axis of feed liquor valve seat, fluid valve seat, liquid feed valve, liquid valve is all on same axis, that is to say, liquid entering hole between feed liquor valve seat and the liquid feed valve, the liquid outlet between liquid valve seat and liquid valve are arranged at same straight line, having reduced valve body stress concentrates, solve original valve body cross hole stress and concentrated the problem of the fatigue cracking that causes, the working life of greatly having improved fluid end.
The fluid end of above-mentioned emulsion pump has a blind hole at valve body, and feed liquor valve seat and fluid valve seat are provided with plug along the axis setting of blind hole at the blind hole mouth.Be more convenient for like this dismantling, keep in repair and maintenance, greatly increase work efficiency.
Between the fluid end of above-mentioned emulsion pump, feed liquor valve seat and liquid feed valve, all contact by conical surface seal between fluid valve seat and the liquid valve.
Description of drawings
Fig. 1 is the plan view of the fluid end of embodiment's 1 described emulsion pump.
Fig. 2 is the sectional view (the C-C cutaway view Amplified image of Fig. 1) of the fluid end of embodiment's 1 described emulsion pump
Fig. 3 is the sectional view of embodiment's 2 described fluid ends.
Fig. 4 is the sectional view of embodiment's 3 described fluid ends.
Embodiment
Embodiment 1:
Referring to the fluid end of the emulsion pump shown in Fig. 1,2, comprise 3 groups of valve groups 3 in valve body 1 and 3 the parallel blind holes 2 that are arranged on valve body.Each valve block structure is identical, now only describes with one group.
From the bottom of blind hole feed liquor valve seat 4, ring set 6, feed liquor spring seat 7, fluid valve seat 8, fluid spring seat 10, plug 11 are arranged successively upwards.Between feed liquor valve seat 4 and the liquid feed valve 5, contact by the conical surface 12 sealings respectively between fluid valve seat 8 and the liquid valve 9.
Feed liquor spring seat 7 links to each other with ring set 6 by screw thread, when between the lower end of feed liquor spring seat 7 and liquid feed valve, being provided with in normality so that the feed liquor spring 13 that liquid feed valve contacts with the feed liquor valve base sealing, when between fluid spring seat 10 and liquid valve, being provided with in normality so that the fluid spring 14 that liquid valve contacts with the fluid valve base sealing.The axis of feed liquor valve seat, fluid valve seat, liquid feed valve, liquid valve is all on same axis.
Ring set 6 circumferentially have a through hole 15, have hole 16 at feed liquor spring seat 7.The interior bottom of valve body has feed pathway 17, and the valve body internal upper part has liquid outlet channel, and the sidepiece of valve body has the passage 18 that communicates with plunger channel.
Plunger is to away from axis one lateral movement of liquid feed valve the time, and the pressure that liquid feed valve overcomes the feed liquor spring moves up, and emulsified liquid enters in the ring set in feed pathway, simultaneously liquid valve under the effect of fluid spring with the fluid valve base sealing.Plunger is during to an opposite lateral movement, liquid feed valve under the effect of feed liquor spring with the feed liquor valve base sealing; The pressure that the while liquid valve overcomes the fluid spring moves up, and emulsified liquid enters liquid outlet channel again in ring set, in hole 16 enters the fluid valve seat.
Embodiment 2:
Referring to Fig. 3, and with reference to figure 1 and embodiment 1, from the bottom of blind hole feed liquor valve seat 4, ring set 6, feed liquor spring seat 7, fluid valve seat 8, fluid spring seat 10, plug 11 are arranged successively upwards.Between feed liquor valve seat 4 and the liquid feed valve 5, contact by conical surface seal respectively between fluid valve seat 8 and the liquid valve 9.
Embodiment 3:
Referring to Fig. 4, and with reference to figure 1 and embodiment 1, from the bottom of blind hole feed liquor valve seat 4, ring set 6, feed liquor spring seat 7, fluid valve seat 8, fluid spring seat 10, plug 11 are arranged successively upwards.Between feed liquor valve seat 4 and the liquid feed valve 5, contact by conical surface seal respectively between fluid valve seat 8 and the liquid valve 9.
Feed liquor spring seat 7 is arranged on center portion, ring set 6 upper end.Fluid spring seat 10 links to each other by the upper end of screw thread with fluid valve seat 8.Formed passage between plug lower end and the valve body.The axis of feed liquor valve seat, fluid valve seat, liquid feed valve, liquid valve is all on same axis.
Claims (3)
1. the fluid end of emulsion pump, comprise valve body, be arranged on feed liquor valve seat, fluid valve seat in the valve body, the liquid feed valve, the liquid valve that match respectively with feed liquor valve seat, fluid valve seat, when between feed liquor valve seat and liquid feed valve, being provided with in normality so that the feed liquor spring that liquid feed valve contacts with the feed liquor valve base sealing, when between fluid valve seat and liquid valve, being provided with in normality so that the fluid spring that liquid valve contacts with the fluid valve base sealing it is characterized in that: the axis of feed liquor valve seat, fluid valve seat, liquid feed valve, liquid valve is all on same axis.
2. the fluid end of emulsion pump as claimed in claim 1, it is characterized in that: have a blind hole at valve body, feed liquor valve seat and fluid valve seat are provided with plug along the axis setting of blind hole at the blind hole mouth.
3. the fluid end of emulsion pump as claimed in claim 1 is characterized in that: between feed liquor valve seat and the liquid feed valve, all contact by conical surface seal between fluid valve seat and the liquid valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220475368.XU CN202811331U (en) | 2012-09-18 | 2012-09-18 | Hydraulic end for emulsion pumps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220475368.XU CN202811331U (en) | 2012-09-18 | 2012-09-18 | Hydraulic end for emulsion pumps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202811331U true CN202811331U (en) | 2013-03-20 |
Family
ID=47870214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220475368.XU Expired - Lifetime CN202811331U (en) | 2012-09-18 | 2012-09-18 | Hydraulic end for emulsion pumps |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202811331U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104747430A (en) * | 2014-11-13 | 2015-07-01 | 三一重型装备有限公司 | Fluid end and emulsion pump |
-
2012
- 2012-09-18 CN CN201220475368.XU patent/CN202811331U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104747430A (en) * | 2014-11-13 | 2015-07-01 | 三一重型装备有限公司 | Fluid end and emulsion pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130320 |