CN100557243C - A kind of high-pressure plunger pump - Google Patents
A kind of high-pressure plunger pump Download PDFInfo
- Publication number
- CN100557243C CN100557243C CNB2007100297037A CN200710029703A CN100557243C CN 100557243 C CN100557243 C CN 100557243C CN B2007100297037 A CNB2007100297037 A CN B2007100297037A CN 200710029703 A CN200710029703 A CN 200710029703A CN 100557243 C CN100557243 C CN 100557243C
- Authority
- CN
- China
- Prior art keywords
- pump seat
- pressure cylinder
- seal
- pump
- sealing
- 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
Links
Images
Landscapes
- Details Of Reciprocating Pumps (AREA)
Abstract
The invention discloses a kind of high-pressure plunger pump, aim to provide the plunger pump of a kind of easy accessibility, good seal performance, long service life, the main points of its technological scheme comprise pump seat, high-pressure cylinder and plunger rod, between high-pressure cylinder and plunger rod, be provided with sealing configuration, the pump seat middle part is provided with the axial passage that is slightly larger than the plunger rod external diameter, wherein: described pump seat and high-pressure cylinder socket connection are provided with sealing gasket between pump seat and high-pressure cylinder; Being provided with intake tunnel and exhalant canal at pump seat is communicated with the axial passage at pump seat middle part; Be provided with the guiding copper sheathing in pump seat, the guiding copper sheathing cooperates with plunger rod is movable; The present invention is used for the high pressure water cutting machine.
Description
Technical field
The present invention relates to a kind of pump, refer in particular to a kind of high-pressure plunger pump that is used for the high pressure water cutting device.
Background technique
Water jet cutting machine (high-pressure water cutting machine) is to be pressurized to 200MPa～380MPa by the water that essence is filtered, form a kind of jet of about tripler speed again through jewel nozzles, can change its pressure into concentrated kinetic energy, thereby reach the purpose of energy cutting material; The water jet cutting machine is realized cutting process to material because of the high-energy jet beam of its nonthermal source, it is fast to have cutting speed, the precision height, otch is smooth, no dust, no thermal distortion, pollution-free, reduce characteristics such as waste of material, being particularly suitable for cutting various method for hot cutting is difficult to competent or can not material processed, in aviation, military project, glass, stone material, building, decoration waits in the fine finishing enterprise and has obtained extensive use, is used for titanium alloy, copper coin, steel plate, aluminium sheet, cast iron, granite, marble, ceramic tile, glass, chemical fibre, timber, cloth, paper, leather, the cutting of plastic or other material.
Core component in the water jet cutting machine is an extremely-high tension generator, extremely-high tension generator is to promote high-pressure plunger pump compression water body by mechanical force or hydraulic coupling to produce ultrahigh pressure, traditional hydraulic coupling promotes extremely-high tension generator, be that the hydraulic coupling promotion plunger that utilizes hydraulic station to produce moves the compression water body, can produce the water pressure of about 200MPa～380MPa, but complex structure, cost height, use and maintenance cost height; And mechanical force promotes extremely-high tension generator, is to utilize motor directly to drive the crankcase drive plunger to move the compression water body, can produce the water pressure of about 200MPa～380MPa, structure is simple relatively, cost is low, and use and maintenance cost is also lower, thereby social recoverable amount is also bigger.The high-pressure plunger pump that uses in the mechanical type extremely-high tension generator, sealing configuration in its high-pressure cylinder adopts precompressed aramid fiber filler usually, but under the ultrahigh pressure state, the plunger rod reciprocating frequency is high more, the heat that is produced between sealing material and the plunger rod can have a strong impact on sealability, reduces working life; And be overall structure between pump seat and the high-pressure cylinder, working life certain limitation arranged and the high-pressure cylinder inner seal belongs to easily damaged parts, often need frequent replacing, this brings inconvenience to use; In addition, the guide sleeve of traditional its plunger of high-pressure plunger pump all is arranged in the high-pressure cylinder, because guide sleeve need bear ultrahigh pressure, particularly when hydraulic pressure surpasses 250MPa, as easy as rolling off a log damage, only be the time about a week its working life, causes the increase of operating cost.
Summary of the invention
The technical problem to be solved in the present invention is the deficiency that exists at above-mentioned prior art, and the high-pressure plunger pump of a kind of easy accessibility, good seal performance, long service life is provided.
Technological scheme of the present invention is such: a kind of high-pressure plunger pump, comprise pump seat, high-pressure cylinder and plunger rod, between high-pressure cylinder and plunger rod, be provided with sealing configuration, the pump seat middle part is provided with the axial passage that is slightly larger than the plunger rod external diameter, wherein: described pump seat and high-pressure cylinder socket connection are provided with sealing gasket between pump seat and high-pressure cylinder; Being provided with intake tunnel and exhalant canal at pump seat is communicated with the axial passage at pump seat middle part; Be provided with the guiding copper sheathing in pump seat, the guiding copper sheathing cooperates with plunger rod is movable.
Sealing configuration described in above-mentioned a kind of high-pressure plunger pump is made up of sealed letter body, motive sealing, sealing supporting ring, seal, two seal rings, two annular delta-rings, the sealed letter body is a tubular body, it is provided with less external diameter on one side, another side is provided with bigger internal diameter, motive sealing and seal are the annular of appearance similar, Yi Bian have the little lip limit portion of external diameter; Motive sealing, annular delta-ring and sealing supporting ring be assemblied in successively the sealed letter body than large diameter portion, the lip limit portion of motive sealing is inside; Annular delta-ring and seal are assemblied in the external diameter smaller part of sealed letter body successively, and the lip limit portion of seal is outside; Two seal rings are enclosed within the lip limit portion of motive sealing and seal respectively.
Pump seat end face described in above-mentioned a kind of high-pressure plunger pump is provided with columniform flange, and the external diameter of this flange and the internal diameter of high-pressure cylinder adapt, one side being plugged on this flange of high-pressure cylinder.
Guiding copper sheathing described in above-mentioned a kind of high-pressure plunger pump is installed in the counterbore at pump seat rear portion, is provided with Y shape O-ring seal, packing ring and circlip successively in the guiding copper sheathing outside, with replacing guiding copper sheathing for convenience detach.
After the present invention adopts said structure, compared with prior art, have following advantage:
(1) by at the pump housing cooling water passage being set, the heating that can force the cooling stud stopper rod to produce because of friction with cooling water to guarantee the normal use of sealing configuration, increases the service life.
(2) by being connected, simple in structure with being designed to flange between pump seat and the high-pressure cylinder, and the replacing of high-pressure cylinder is convenient, easy.
(3) be arranged in the pump seat by the copper sheathing that will lead, the guiding copper sheathing time does not need to bear ultra high water pressure in the high-pressure cylinder in work, under the equal conditions, can prolong the working life of guiding copper sheathing more than one times.
Description of drawings
Below in conjunction with the embodiment in the accompanying drawing the present invention is described in further detail, but does not constitute any limitation of the invention.
Fig. 1 is the structural representation of a kind of specific embodiment of the present invention;
Fig. 2 is the structural representation of pump seat among the present invention;
Fig. 3 is the structural representation of sealing configuration among the present invention.
Among the figure: pump seat 1, axial passage 1a, intake tunnel 1b, exhalant canal 1c, flange 1d, high-pressure cylinder 2, plunger rod 3, sealing configuration 4, sealed letter body 4a, motive sealing 4b, sealing supporting ring 4c, seal 4d, seal ring 4e, annular delta-ring 4f, sealing gasket 5, guiding copper sheathing 6, Y shape O-ring seal 7, packing ring 8, circlip 9, pump cover 10, screw rod 11.
Embodiment
Consult Fig. 1 to shown in Figure 3, a kind of high-pressure plunger pump of the present invention, comprise pump seat 1, high-pressure cylinder 2 and plunger rod 3, pump seat 1 end face is provided with columniform flange 1d, the external diameter of this flange 1d and the internal diameter of high-pressure cylinder 2 adapt, one side of high-pressure cylinder 2 is plugged on this flange 1d, is provided with sealing gasket 5 between pump seat 1 and high-pressure cylinder 2; Between high-pressure cylinder 2 and plunger rod 3, be provided with sealing configuration 4, sealing structure 4 is made up of sealed letter body 4a, motive sealing 4b, sealing supporting ring 4c, seal 4d, two seal ring 4e, two annular delta-ring 4f, sealed letter body 4a is a tubular body, it is provided with less external diameter on one side, another side is provided with bigger internal diameter, motive sealing 4b and seal 4d are the annular of appearance similar, Yi Bian have the little lip limit portion of external diameter; Motive sealing 4b, annular delta-ring 4f and sealing supporting ring 4c be assemblied in successively sealed letter body 4a than large diameter portion, the lip limit portion of motive sealing 4b is inside; Annular delta-ring 4f and seal 4d are assemblied in the external diameter smaller part of sealed letter body 4a successively, and the lip limit portion of seal 4d is outside; Two seal ring 4e are enclosed within the lip limit portion of motive sealing 4b and seal 4d respectively; Pump seat 1 middle part is provided with the axial passage 1a that is slightly larger than plunger rod 3 external diameters, is provided with intake tunnel 1b and exhalant canal 1c and is communicated with the axial passage 1a at pump seat 1 middle part on pump seat 1; In pump seat 1, be provided with guiding copper sheathing 6, guiding copper sheathing 6 and 3 movable cooperations of plunger rod, guiding copper sheathing 6 is installed in the counterbore at pump seat 1 rear portion, is provided with Y shape O-ring seal 7, packing ring 8 and circlip 9 successively in guiding copper sheathing 6 outsides, and this mode of structure dismounting is convenient.
When the utility model specifically uses, consult shown in Figure 1ly, be connected and fixed by four screw rods 11 between pump seat 1, high-pressure cylinder 2, plunger rod 3 and the pump cover 10, dismounting, easier for installation; Plunger rod 3 reciprocatingly moves along pump seat 1 and high-pressure cylinder 2 under the effect of external force (mechanical force or hydraulic coupling) during work, and water is sucked into and enters accumulator after high-pressure cylinder 2 compresses, and the said process that constantly circulates; Plunger rod 3 by feeding cooling water from intake tunnel 1b, is forced cooling to plunger rod 3 owing to can generate heat with the stuffing box packing friction, discharges from exhalant canal 1c then, can guarantee the normal sealability of sealing configuration; In addition, plunger rod 3 can stable operation under the leading role of guiding copper sheathing 6, and because the postposition of guiding copper sheathing 6 is exempted from the alternation water pressure that it bears ultrahigh pressure, can prolong its working life greatly.
Claims (3)
1. high-pressure plunger pump, comprise pump seat (1), high-pressure cylinder (2) and plunger rod (3), between high-pressure cylinder (2) and plunger rod (3), be provided with sealing configuration (4), pump seat (1) middle part is provided with the axial passage (1a) that is slightly larger than plunger rod (3) external diameter, it is characterized in that: described pump seat (1) and high-pressure cylinder (2) socket connection are provided with sealing gasket (5) between pump seat (1) and high-pressure cylinder (2); Being provided with intake tunnel (1b) and exhalant canal (1c) at pump seat (1) is communicated with the axial passage (1a) at pump seat (1) middle part; Be provided with guiding copper sheathing (6) in pump seat (1), guiding copper sheathing (6) cooperates with plunger rod (3) is movable; Described sealing configuration (4) is made up of sealed letter body (4a), motive sealing (4b), sealing supporting ring (4c), seal (4d), two seal rings (4e), two annular delta-rings (4f), sealed letter body (4a) is a tubular body, it is provided with less external diameter on one side, another side is provided with bigger internal diameter, motive sealing (4b) and seal (4d) are the annular of appearance similar, Yi Bian have the little lip limit portion of external diameter; Motive sealing (4b), annular delta-ring (4f) and sealing supporting ring (4c) be assemblied in successively sealed letter body (4a) than large diameter portion, the lip limit portion of motive sealing (4b) is inside; Annular delta-ring (4f) and seal (4d) are assemblied in the external diameter smaller part of sealed letter body (4a) successively, and the lip limit portion of seal (4d) is outside; Two seal rings (4e) are enclosed within the lip limit portion of motive sealing (4b) and seal (4d) respectively.
2. a kind of high-pressure plunger pump according to claim 1, it is characterized in that: described pump seat (1) end face is provided with columniform flange (1d), the internal diameter of external diameter of this flange (1d) and high-pressure cylinder (2) adapts, high-pressure cylinder (2) one side be plugged on this flange (1d).
3. a kind of high-pressure plunger pump according to claim 2, it is characterized in that: described guiding copper sheathing (6) is installed in the counterbore at pump seat (1) rear portion, is provided with Y shape O-ring seal (7), packing ring (8) and circlip (9) successively in guiding copper sheathing (6) outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100297037A CN100557243C (en) | 2007-08-14 | 2007-08-14 | A kind of high-pressure plunger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100297037A CN100557243C (en) | 2007-08-14 | 2007-08-14 | A kind of high-pressure plunger pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101109377A CN101109377A (en) | 2008-01-23 |
| CN100557243C true CN100557243C (en) | 2009-11-04 |
Family
ID=39041585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100297037A Expired - Fee Related CN100557243C (en) | 2007-08-14 | 2007-08-14 | A kind of high-pressure plunger pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100557243C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101907091B (en) * | 2010-08-20 | 2011-11-16 | 南京大地水刀股份有限公司 | Novel balanced type water inlet and outlet valve group of ultrahigh pressure supercharger |
| CN102213249A (en) * | 2011-05-24 | 2011-10-12 | 肇庆市志成气动有限公司 | Cylinder special for tire removing machinery |
| DE102013220600A1 (en) * | 2013-10-11 | 2015-04-16 | Continental Automotive Gmbh | Plug-in pump for a common rail system and engine arrangement with an internal combustion engine, a common rail system and a plug-in pump |
| CN104728070B (en) * | 2015-02-17 | 2017-03-01 | 上海金箭水射流设备制造有限公司 | A kind of power-driven system of high-pressure water jet pump |
| CN110630580A (en) * | 2019-09-30 | 2019-12-31 | 保定环贸水切割设备有限公司 | Check valve structure of supercharger of ultra-high pressure pump |
| CN110630584B (en) * | 2019-09-30 | 2020-12-29 | 保定环贸水切割设备有限公司 | High-pressure sealing assembly structure of supercharger of ultra-high pressure pump |
| CN111425389B (en) * | 2020-03-27 | 2023-05-02 | 洛阳瑞华新能源技术发展有限公司 | Reciprocating pump with reciprocating plunger assembly with heat conducting reciprocating pump built in front section of plunger assembly |
-
2007
- 2007-08-14 CN CNB2007100297037A patent/CN100557243C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101109377A (en) | 2008-01-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100557243C (en) | A kind of high-pressure plunger pump | |
| CN102909589A (en) | Mechanical tool-changing spindle used at direct machining center | |
| CN208866474U (en) | A kind of through slot through-hole milling cutter mounting structure | |
| CN201121574Y (en) | High-pressure plunger pump with independent cooling and sealing function | |
| CN201125862Y (en) | Easy disassemble and assemble split type high-pressure plunger pump | |
| CN205362857U (en) | High -speed multigraph press that saw cuts of stress relief device and panel | |
| CN201110260Y (en) | Postposition guide sleeve high-pressure plunger pump | |
| CN202910623U (en) | Direct-connection machining center mechanical tool-changing main shaft | |
| CN215719344U (en) | Piston structure of liquid-driven compressor | |
| CN209115438U (en) | A kind of cushion cylinder with multiple-protection-function | |
| CN101907091B (en) | Novel balanced type water inlet and outlet valve group of ultrahigh pressure supercharger | |
| CN103878566A (en) | Slip ring body press-fitting equipment | |
| CN209986861U (en) | Technological plug dismounting device for automobile power assembly | |
| CN210087399U (en) | Floating concessable interstage gland seal | |
| CN203765261U (en) | Slip ring body press-assembly device | |
| CN204458156U (en) | Custom Prosthesis high-power diesel plunger coupled parts | |
| CN106739132A (en) | A kind of pressure machine overloading protection device | |
| CN201401387Y (en) | Oil cylinder piston | |
| CN211515712U (en) | High-efficient punching machine of automobile parts | |
| CN212104296U (en) | Compact spraying anti-brittle-fracture hydraulic breaking hammer | |
| CN109149874A (en) | Axle sleeve shaft crossing device | |
| CN215171122U (en) | Supercharger sealing structure | |
| CN212310972U (en) | Full-automatic efficient plate shearing production line equipment | |
| CN217682580U (en) | High-safety double-arm oil cylinder | |
| CN208164371U (en) | A kind of press bed |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: HEYUAN PX WATER JET CUTTING MACHINERY CO., LTD. Assignor: Xiao Xiuping Contract record no.: 2012440000085 Denomination of invention: High-pressure plunger pump sealing structure Granted publication date: 20091104 License type: Exclusive License Open date: 20080123 Record date: 20120316 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091104 Termination date: 20140814 |
|
| EXPY | Termination of patent right or utility model |