CN101634296B - High-pressure slurry-casting ram pump piston system with split rear cover - Google Patents
High-pressure slurry-casting ram pump piston system with split rear cover Download PDFInfo
- Publication number
- CN101634296B CN101634296B CN2009101820810A CN200910182081A CN101634296B CN 101634296 B CN101634296 B CN 101634296B CN 2009101820810 A CN2009101820810 A CN 2009101820810A CN 200910182081 A CN200910182081 A CN 200910182081A CN 101634296 B CN101634296 B CN 101634296B
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- piston
- sleeve
- rear cover
- clamping sleeve
- bonnet
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- Reciprocating Pumps (AREA)
Abstract
The invention provides a high-pressure slurry-casting ram pump piston system with a split rear cover. The piston rear cover of the system is provided with an inner clamping sleeve and an outer clamping sleeve which are split, and a free space is remained between the inner clamping sleeve and the outer clamping sleeve. The invention solves the problem that a seal washer of the prior high-pressure slurry-casting ram pump piston is often scratched by slurry hardening objects, thereby reducing the replacement time of the seal washer, leading the high-pressure slurry-casting ram pump piston to be in a good work state in a long period, and improving the medium pouring quality and the machine work efficiency. The high-pressure slurry-casting ram pump piston system with a split rear cover has simple structure, greatly improves the processing difficulty of the original rear cover, not only can ensure the tight fit with a piston rod, but also can allow larger operating errors, and can be directly replaced without changing the specifications of the piston system and other subassemblies; and otherwise, the inner clamping sleeve with smaller volume can be made of high wear-resistant materials is tightly fit with the piston rod so as to resist wear and can prolong the service life of the piston system.
Description
Technical field
The present invention relates to plunger pump, particularly high-pressure slip-casting plunger pump, a kind of high-pressure slip-casting plunger pump piston system that split type bonnet is set of more specifically saying so.
Background technique
The high-pressure slip-casting plunger pump is a necessary special device in urban construction, water conservancy, the construction of hydropower plant.This equipment is the to-and-fro motion by the plunger pump piston, media such as mortar, mud is injected among ground weak link or the building tear effect of play leak stopping, strengthening ground or reinforce building under high pressure conditions.During modern project is built, in order to make leak stopping and consolidation effect better, in the slurry of being annotated normal employing rapidly setting and hardening become solid-state chemical material.But, the chemical material of this property in the working procedure of slip casting, often the time not length that the seal washer of piston will take place is destroyed, and the phenomenon that causes leaking behind the slurry takes place, and makes the machine can't proper functioning even.This is because piston during the reciprocal propelling of high pressure, has slurry inevitably and leaks backward from seal washer, flows in the slot of piston bonnet and piston rod fit tolerance.Chemical sizwe is present in very fast sclerosis the between the slot of fit tolerance, and be stained with and be bonded on the piston rod, piston rod is again to thrust under high pressure conditions, causes the hardening thing on the piston rod can scratch seal washer easily, and the back leakage situation of slurry is just serious all the more like this.At present, solve this vicious circle that goes round and begins again, have only machine is stopped, cleaning piston bar again, the seal washer that more renews.Yet frequent shutdown not only influences the engineering grouting quality, also makes machine works usefulness low.Therefore, these existing problems are perplexing the relevant worker with other of scientific and technical personnel in the industry always.
Summary of the invention
The present invention is directed to above-mentioned existing problems, proposed a kind of high-pressure slip-casting plunger pump piston system that split type bonnet is set, purpose is by the piston rear cover structure is improved, to realize the normal operation of high-pressure slip-casting plunger pump.
Technical solution of the present invention:
The piston system of existing plunger pump mainly is made up of cylinder body, piston rod, seal washer, bonnet, and wherein bonnet is that friction top and sleeve are the unitary whole part, and jacket casing and is established outer screw thread outside piston rod, be screwed on the cylinder body.The present invention improves the piston bonnet, be about to interior clamp sleeve and external compression sleeve that bonnet is set to split, the preceding gland of interior clamp sleeve and seal washer are fitted, and its sleeve body is enclosed within outside the piston rod tightly, and integral body stretches in the external compression sleeve, and exposure is outside the rear pressing cover of external compression sleeve; The cylindrical shell end of external compression sleeve withstands on the preceding gland of interior clamp sleeve.In addition: leave free distance between the inside and outside clamp sleeve.
Beneficial effect of the present invention:
(1) the present invention is because bonnet is set to split type, make former fit tolerance position between piston rod and whole bonnet that change take place, in the free distance in the fit tolerance of former bonnet is transferred between clamp sleeve outer wall and the external compression sleeve lining, this fit tolerance and piston rod operation are irrelevant, only adhere to hardening thing seldom on the piston rod, and it is back and forth in service at piston, fallen by automatic removing of interior clamping sleeve cylindrical shell front end, seal washer no longer is damaged, still keep the good sealability of seal washer, the high-pressure slip-casting plunger pump can be in the good working order for a long time, improve the working efficiency of medium pouring quality and machine greatly;
(2) though the present invention is simple in structure, greatly reduce the difficulty of processing of former bonnet, back cover split-type setting leaves certain free distance between the inside and outside clamp sleeve, can guarantee and the drive fit of piston rod, has held bigger workpiece error again;
(3) the present invention can adopt high abrasion resisting material to make to the less interior clamp sleeve of volume, and itself and piston rod are made drive fit friction, the operating life that can prolong piston system;
(4) assembling of bonnet of the present invention does not need to change the specification size of other assembly of piston system, can directly replace use;
(5) the present invention has significantly reduced the replacing number of times of piston system seal washer, the saving of labor, saves time.
Description of drawings
Accompanying drawing 2 structural representations for the interior clamp sleeve of the split type bonnet of the present invention and external compression sleeve;
Accompanying drawing 3 is the structural representation of piston system of the present invention.
Embodiment
As shown in Figure 1,
The piston system of prior art high-pressure slip-casting plunger pump comprises cylinder body 1, piston rod 2, seal washer 3, bonnet 4, and bonnet is by friction top and sleeve unitary whole part.There is fit tolerance 5 between bonnet and the piston rod.
Shown in Fig. 2,3,
The present invention's bonnet be set to split, by the single piece that interior clamp sleeve 41 and external compression sleeve 42 constitute, interior clamp sleeve stretches in the external compression sleeve.The preceding gland 411 of interior clamp sleeve is fitted with seal washer 3; Interior clamping sleeve cylindrical shell 412 is enclosed within outside the piston rod 2 tightly, and integral body stretches in the external compression sleeve, and the exposure of interior clamp sleeve end of body is outside the rear pressing cover 421 of external compression sleeve; The end of the cylindrical shell 422 of external compression sleeve withstands on the preceding gland 411 of interior clamp sleeve.In addition, leave free distance 43 between the inwall of external compression sleeve and the interior clamp sleeve outer wall, bonnet and and piston rod between fit tolerance comprise wherein.
The present invention installs appropriate piston system by Fig. 2,3 requirements, and the high-pressure slip-casting plunger pump can come into operation.Through repeatedly on probation, the present invention has reached the expection goal of the invention.Need to prove that the split type bonnet that is constituted by interior clamp sleeve and external compression sleeve of setting of the present invention is not only applicable to the piston system of high-pressure slip-casting plunger pump, equally is applicable to the piston system of other type plunger pump yet.So all plunger pump piston systems are provided with the split type bonnet of the present invention, all should belong to the row of protection domain of the present invention.
Claims (1)
1. the high-pressure slip-casting plunger pump piston system of split type bonnet is set, mainly form by cylinder body, piston rod, seal washer, bonnet, it is characterized in that: its bonnet is set to the interior clamp sleeve and the external compression sleeve of split, the preceding gland of its interior clamp sleeve and seal washer are fitted, interior clamping sleeve cylindrical shell is enclosed within outside the piston rod tightly, and integral body stretches in the external compression sleeve, and the exposure of interior clamp sleeve end of body is outside the rear pressing cover of external compression sleeve; The end of the cylindrical shell of external compression sleeve withstands on the preceding gland of interior clamp sleeve; Leave free distance between the inwall of external compression sleeve and the interior clamp sleeve outer wall, bonnet and and piston rod between fit tolerance be included in wherein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101820810A CN101634296B (en) | 2009-07-22 | 2009-07-22 | High-pressure slurry-casting ram pump piston system with split rear cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101820810A CN101634296B (en) | 2009-07-22 | 2009-07-22 | High-pressure slurry-casting ram pump piston system with split rear cover |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101634296A CN101634296A (en) | 2010-01-27 |
| CN101634296B true CN101634296B (en) | 2011-08-10 |
Family
ID=41593594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101820810A Expired - Fee Related CN101634296B (en) | 2009-07-22 | 2009-07-22 | High-pressure slurry-casting ram pump piston system with split rear cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101634296B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101852194B (en) * | 2010-06-25 | 2012-09-05 | 罗献尧 | Pump head for plunger type metering pump |
| CN109488586A (en) * | 2018-12-29 | 2019-03-19 | 广州聚能纳米生物科技股份有限公司 | A kind of super-high-pressure plunger pump structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2200706Y (en) * | 1994-01-11 | 1995-06-14 | 孙新民 | Hydraulic terminal device of reciprocating plunger pump |
| CN2248255Y (en) * | 1995-05-10 | 1997-02-26 | 地质矿产部勘探技术研究所 | Plunger sealing device for reciprocating plunger pump |
| CN2437886Y (en) * | 2000-05-10 | 2001-07-04 | 王生明 | Practical sealing device for vertical mud pump |
| CN201496257U (en) * | 2009-07-22 | 2010-06-02 | 鲍春 | Piston system of piston pump provided with split type rear cover |
-
2009
- 2009-07-22 CN CN2009101820810A patent/CN101634296B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2200706Y (en) * | 1994-01-11 | 1995-06-14 | 孙新民 | Hydraulic terminal device of reciprocating plunger pump |
| CN2248255Y (en) * | 1995-05-10 | 1997-02-26 | 地质矿产部勘探技术研究所 | Plunger sealing device for reciprocating plunger pump |
| CN2437886Y (en) * | 2000-05-10 | 2001-07-04 | 王生明 | Practical sealing device for vertical mud pump |
| CN201496257U (en) * | 2009-07-22 | 2010-06-02 | 鲍春 | Piston system of piston pump provided with split type rear cover |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101634296A (en) | 2010-01-27 |
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Granted publication date: 20110810 Termination date: 20150722 |
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