CN203022984U - Plunger pump - Google Patents
Plunger pump Download PDFInfo
- Publication number
- CN203022984U CN203022984U CN 201220669859 CN201220669859U CN203022984U CN 203022984 U CN203022984 U CN 203022984U CN 201220669859 CN201220669859 CN 201220669859 CN 201220669859 U CN201220669859 U CN 201220669859U CN 203022984 U CN203022984 U CN 203022984U
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- CN
- China
- Prior art keywords
- valve plate
- pump
- eccentric shaft
- pump housing
- cylinder bore
- 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.)
- Expired - Fee Related
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- Reciprocating Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
The utility model discloses a plunger pump. The plunger pump comprises a pump body and an eccentric shaft, wherein the eccentric shaft is arranged in the pump body in a penetrating mode. The plunger pump is characterized in that four cylinder block holes are formed in the pump body, the cylinder block holes are respectively provided with a piston, two opposite pistons are connected correspondingly through a terminal pad, and two terminal pads are stacked in an up and down mode and assembled at an eccentric position of an eccentric shaft in a rotating mode. A pump cover is arranged at the upper end face of the pump body. A pump outlet is formed in the pump cover. A fixed valve plate and a movable valve plate which are stacked in a sealing mode are arranged at the upper end of the pump body. A liquid storage groove is formed in the lower surface of the movable valve plate. A liquid inlet hole is formed in the pump body. A through hole which communicates the liquid storage groove and the liquid inlet hole is formed in the fixed valve plate. A close cover is arranged at the front ends of the cylinder block holes. The pump body and the fixed valve plate are provided with channels which are communicated with each cylinder block hole in a communicating mode. A bottom cover is arranged at the lower end face of the pump body. The eccentric shaft rotates to respectively drive a piston motion in each cylinder block hole to enable two cylinder blocks to absorb liquid and the other two cylinder blocks to discharge the liquid at the same time, so that efficiency of mill base discharging is improved greatly.
Description
Technical field
The utility model relates to a kind of industrial plunger pump, relates in particular to a kind of plunger pump for liquid medium.
Background technique
at present paint mechanical field, the system that outpours of mill base is normally by stepper motor, speed reducer and reciprocating pump, going out to paint valve forms, at first going out to paint valve closes, at this moment, the piston of stepper motor by speed reducer driven plunger pump moves pipeline carried out exhaust, the piston of rear stepper motor driven plunger pump is drawn into mill base in the cylinder body of reciprocating pump several times repeatedly, then going out to paint valve opens, the stepper motor piston of driven plunger pump is again released cylinder body with mill base, outpour by going out to paint valve, complete the slip casting process, in this process, suck mill base when moving due to reciprocating pump and outpour mill base and separately carry out, only have after the suction mill base is completed, just can outpour mill base, if need the mill base amount larger, also need minute to repeat several times to suck and outpour this process of mill base, cause inefficiency.
The model utility content
The purpose of this utility model is to provide a kind of plunger pump, and in prior art, mill base outpours inefficient problem to solve.
for achieving the above object, the technological scheme that a kind of plunger pump in the utility model adopts is as follows: a kind of plunger pump, comprise the pump housing and the eccentric shaft that is installed in the pump housing, wherein, evenly offer four cylinder bore of leading to pump housing center cavity along its circumferencial direction on the outer circumferential face of the pump housing, be respectively arranged with piston in cylinder bore, the tail end of two relative pistons is respectively by upper land, lower land is corresponding to be connected, two lands stack and rotate the eccentric position that is assemblied in eccentric shaft up and down, on the upper-end surface of the pump housing, seal buckle is provided with the U-shaped pump cover, be provided with the pump discharge that communicates with its U-shaped inner chamber on pump cover, pump housing upper end is provided with valve component in the U-shaped inner chamber of pump cover, valve component comprises moving valve plate and fixed valve plate, fixed valve plate is fixedly installed on the upper surface of the pump housing and rotates assembling with eccentric shaft, folded being located on fixed valve plate and with eccentric shaft is fixing of moving valve plate sealing assembled, the lower surface of moving valve plate is provided with the liquid storage groove, offer inlet opening on the pump housing, be provided with the intercommunicating pore that is communicated with pump housing inlet opening for the liquid storage groove on fixed valve plate, front end in cylinder bore on the pump housing is fixedly installed capping, on the pump housing and fixed valve plate, corresponding the connection is provided with the passage that is communicated with each cylinder bore respectively, the cylinder bore that is in the imbibition state when eccentric shaft rotates is communicated with imbibition by corresponding passage with liquid storage groove on moving valve plate, the cylinder bore that is in the discharge opeing state is communicated with discharge opeing by the U-shaped chamber of corresponding passage and pump cover, be fixedly installed bottom on the lower end surface of the pump housing.
The above passage of the pump housing comprises feed pathway and liquid outlet channel, when eccentric shaft turns to cylinder bore and is in the imbibition state, corresponding feed pathway is communicated with imbibition with the liquid storage groove, the entity part of the corresponding passive valve block of liquid outlet channel is blocked sealing, when eccentric shaft turns to cylinder bore and is in the discharge opeing state, the entity part of the corresponding passive valve block of feed pathway is blocked sealing, and corresponding liquid outlet channel is communicated with discharge opeing with pump discharge.
The upper surface of moving valve plate is provided with draw-in groove, be positioned on the eccentric shaft of moving valve plate upper end and be fixedly installed plate, the end of plate is the curved shift fork that is provided with downwards, moving valve plate is be plugged in the draw-in groove of moving valve plate and be fixedly connected with eccentric shaft by shift fork, be positioned on the eccentric shaft of plate upper end and be provided with pad, the upper end of eccentric shaft is provided with the bayonet lock that pad, plate, moving valve plate, fixed valve plate is clamped on pump housing upper end.
Be fixedly installed stage clip between the bottom wall of inner cavity of moving valve plate upper end and pump cover.
Cylinder bore is communicated with corresponding feed pathway by the capping lead channel that arranges in capping respectively, and cylinder bore is by the capping liquid outlet groove that arranges in capping and corresponding liquid outlet channel connection.
Be provided with needle bearing between the outer circumferential face at the eccentric position of eccentric shaft and land.
Compared with prior art, the beneficial effects of the utility model are, eccentric shaft in the utility model rotates the piston movement that drives respectively in each cylinder bore, make two cylinder bodies in imbibition, the discharge opeing simultaneously of another two cylinder bodies, can make imbibition and discharge opeing process uninterrupted continuously, greatly improve the efficient of discharging mill base.
The passage of the utility model setting comprises feed pathway and liquid outlet channel, and cylinder bore can directly be passed through the outside deaeration of liquid outlet channel, exhaust and convenient.
Stage clip makes sealing more between fixed valve plate and moving valve plate.
With the capping lead channel that arranges in capping, cylinder bore is communicated with feed pathway, with the capping liquid outlet groove, cylinder bore is communicated with liquid outlet channel, make feed pathway and liquid outlet channel processing on the pump housing convenient.
The needle bearing that arranges is eliminated the friction between eccentric shaft and land, eccentric shaft is rotated more steady.
Description of drawings
Fig. 1 is embodiment's of the present utility model outline drawing;
Fig. 2 is the sectional view of Fig. 1;
Fig. 3 is the AA view of Fig. 1;
Fig. 4 is the BB view of Fig. 1.
number in the figure: 1. capping, 2. pump cover, 3. the pump housing, 4, fixed valve plate, 5. moving valve plate, 6. sealing gasket, 7. bearing, 8. pump housing center cavity, 9.U shape inner chamber, 10. eccentric shaft, 11. cylinder bore, 12. piston, 13. upper land, 14. lower land, 15. pump discharge, 16. plate, 17. shift fork, 18. pad, 19. bayonet lock, 20. stage clip, 21. liquid storage groove, 22. pump housing inlet opening, 23. feed pathway, 24. liquid outlet channel, 25. capping sealing gasket, 26. capping lead channel, 27. capping liquid outlet groove, 28. bottom, 29. needle bearing, 30. back-up ring.
Embodiment
a kind of embodiment of plunger pump, as shown in Fig. 1-4, a kind of plunger pump, comprise the pump housing 3 and the eccentric shaft 10 that is installed in the pump housing 3, it is characterized in that, evenly offer four cylinder bore 11 of leading to pump housing center cavity along its circumferencial direction on the outer circumferential face of the pump housing 3, be respectively arranged with piston 12 in cylinder bore 11, the tail end of two relative pistons is respectively by upper land 13, lower corresponding connection of land 14, two lands stack up and down and rotate by needle bearing 29 the eccentric position that is assemblied in eccentric shaft 10, two ends up and down in needle bearing 29 on eccentric shaft 10 are respectively arranged with back-up ring 30, on the upper-end surface of the pump housing 3, seal buckle is provided with U-shaped pump cover 2, be provided with the pump discharge 15 that communicates with its U-shaped inner chamber on pump cover 2, the pump housing 3 upper ends are provided with valve component in the U-shaped inner chamber of pump cover 2, valve component comprises moving valve plate 5 and fixed valve plate 4, fixed valve plate 4 is fixedly installed on the upper surface of the pump housing 3 and rotates assembling with eccentric shaft 10, be provided with valve block sealing gasket 6 between fixed valve plate 4 and the pump housing 3 upper-end surfaces, folded being located on fixed valve plate 4 and with eccentric shaft 10 is fixing of moving valve plate 5 sealings assembled, the upper surface of moving valve plate 5 is provided with draw-in groove, be positioned on the eccentric shaft 10 of moving valve plate 5 upper ends and be fixedly installed plate 16, the end of plate 16 is the curved shift fork 17 that is provided with downwards, moving valve plate 5 is be plugged in the draw-in groove of moving valve plate 5 and be fixedly connected with eccentric shaft 10 by shift fork 17, be positioned on the eccentric shaft 10 of plate 16 upper ends and be provided with pad 18, the upper end of eccentric shaft 10 is provided with pad 18, plate 17, moving valve plate 5, fixed valve plate 4 is clamped on the bayonet lock 19 of the pump housing 3 upper ends, be fixedly installed stage clip 20 between the bottom wall of inner cavity of moving valve plate 5 upper ends and pump cover 2, the lower surface of moving valve plate 5 is provided with liquid storage groove 21, offer inlet opening 22 on the pump housing 3, be provided with the intercommunicating pore that is communicated with pump housing inlet opening 22 for liquid storage groove 21 on fixed valve plate 4, on the pump housing 3 and fixed valve plate 4, corresponding the connection is provided with the passage that is communicated with each cylinder bore respectively, described passage comprises feed pathway 23 and liquid outlet channel 24, front end in cylinder bore 11 on the pump housing 3 is fixedly installed capping 1, be provided with capping sealing gasket 25 between capping 1 and the pump housing 3, be provided with capping lead channel 26 and capping liquid outlet groove 27 in capping 1, when eccentric shaft rotates, be in the cylinder bore and corresponding capping lead channel of imbibition state, feed pathway, the liquid storage groove is communicated with imbibition, the entity part of the corresponding passive valve block of liquid outlet channel is blocked sealing, be in the cylinder bore and corresponding capping liquid outlet groove of discharge opeing state, liquid outlet channel, pump discharge is communicated with discharge opeing, the entity part of the corresponding passive valve block of feed pathway is blocked sealing, be fixedly installed bottom 28 on the lower end surface of the pump housing 3, the eccentric shaft two ends are provided with bearing 7 respectively and between the pump housing 2 and bottom 28.
In other embodiment, described passage can also be only a liquid in-out passage, when eccentric shaft rotated, the cylinder bore that is in the imbibition state was communicated with imbibition with liquid in-out passage, liquid storage groove, and the cylinder bore that be in the discharge opeing state this moment is communicated with discharge opeing with liquid in-out passage, pump discharge.
Claims (7)
1. plunger pump, comprise the pump housing and the eccentric shaft that is installed in the pump housing, it is characterized in that, evenly offer four cylinder bore of leading to pump housing center cavity along its circumferencial direction on the outer circumferential face of the pump housing, be respectively arranged with piston in cylinder bore, the tail end of two relative pistons is respectively by upper land, lower land is corresponding to be connected, two lands stack and rotate the eccentric position that is assemblied in eccentric shaft up and down, on the upper-end surface of the pump housing, seal buckle is provided with the U-shaped pump cover, be provided with the pump discharge that communicates with its U-shaped inner chamber on pump cover, pump housing upper end is provided with valve component in the U-shaped inner chamber of pump cover, valve component comprises moving valve plate and fixed valve plate, fixed valve plate is fixedly installed on the upper surface of the pump housing and rotates assembling with eccentric shaft, folded being located on fixed valve plate and with eccentric shaft is fixing of moving valve plate sealing assembled, the lower surface of moving valve plate is provided with the liquid storage groove, offer inlet opening on the pump housing, be provided with the intercommunicating pore that is communicated with pump housing inlet opening for the liquid storage groove on fixed valve plate, front end in cylinder bore on the pump housing is fixedly installed capping, on the pump housing and fixed valve plate, corresponding the connection is provided with the passage that is communicated with each cylinder bore respectively, the cylinder bore that is in the imbibition state when eccentric shaft rotates is communicated with imbibition by corresponding passage with liquid storage groove on moving valve plate, the cylinder bore that is in the discharge opeing state is communicated with discharge opeing by corresponding passage with the U-shaped inner chamber of pump cover, be fixedly installed bottom on the lower end surface of the pump housing.
2. plunger pump according to claim 1, it is characterized in that, the above passage of the pump housing comprises feed pathway and liquid outlet channel, when eccentric shaft turns to cylinder bore and is in the imbibition state, corresponding feed pathway is communicated with imbibition with the liquid storage groove, and the entity part of the passive valve block of liquid outlet channel is blocked sealing accordingly, when eccentric shaft turns to cylinder bore and is in the discharge opeing state, the entity part of the corresponding passive valve block of feed pathway is blocked sealing, and corresponding liquid outlet channel is communicated with discharge opeing with pump discharge.
3. plunger pump according to claim 1 and 2, it is characterized in that, the upper surface of moving valve plate is provided with draw-in groove, be positioned on the eccentric shaft of moving valve plate upper end and be fixedly installed plate, the end of plate is the curved shift fork that is provided with downwards, moving valve plate is be plugged in the draw-in groove of moving valve plate and be fixedly connected with eccentric shaft by shift fork, is positioned on the eccentric shaft of plate upper end to be provided with pad, and the upper end of eccentric shaft is provided with the bayonet lock that pad, plate, moving valve plate, fixed valve plate is clamped on pump housing upper end.
4. plunger pump according to claim 1, is characterized in that, is fixedly installed stage clip between the U-shaped bottom wall of inner cavity of moving valve plate upper end and pump cover.
5. plunger pump according to claim 3, is characterized in that, is fixedly installed stage clip between the U-shaped bottom wall of inner cavity of moving valve plate upper end and pump cover.
6. plunger pump according to claim 1, is characterized in that, cylinder bore is communicated with corresponding feed pathway by the capping lead channel that arranges in capping respectively, and cylinder bore is by the capping liquid outlet groove that arranges in capping and corresponding liquid outlet channel connection.
7. plunger pump according to claim 1, is characterized in that, is provided with needle bearing between the outer circumferential face at the eccentric position of eccentric shaft and land.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220669859 CN203022984U (en) | 2012-12-07 | 2012-12-07 | Plunger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220669859 CN203022984U (en) | 2012-12-07 | 2012-12-07 | Plunger pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203022984U true CN203022984U (en) | 2013-06-26 |
Family
ID=48646973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220669859 Expired - Fee Related CN203022984U (en) | 2012-12-07 | 2012-12-07 | Plunger pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203022984U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3690244A2 (en) | 2019-01-31 | 2020-08-05 | Zhengzhou Sanhua Technology & Industry Co., Ltd. | Liquid proportioning machine |
| CN114704449A (en) * | 2022-03-17 | 2022-07-05 | 郑州三华科技实业有限公司 | Slurry supply device and color mixer |
-
2012
- 2012-12-07 CN CN 201220669859 patent/CN203022984U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3690244A2 (en) | 2019-01-31 | 2020-08-05 | Zhengzhou Sanhua Technology & Industry Co., Ltd. | Liquid proportioning machine |
| CN114704449A (en) * | 2022-03-17 | 2022-07-05 | 郑州三华科技实业有限公司 | Slurry supply device and color mixer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130626 Termination date: 20131207 |