CN2526605Y - Hydraulic plunger pump cylinder - Google Patents
Hydraulic plunger pump cylinder Download PDFInfo
- Publication number
- CN2526605Y CN2526605Y CN 02216106 CN02216106U CN2526605Y CN 2526605 Y CN2526605 Y CN 2526605Y CN 02216106 CN02216106 CN 02216106 CN 02216106 U CN02216106 U CN 02216106U CN 2526605 Y CN2526605 Y CN 2526605Y
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- cylinder body
- utility
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- plunger pump
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Abstract
The utility model relates to the technical field of a plunger pump cylinder body which is designed for adapting to powder metallurgy-manufacturing, cost-reducing and production-enhancing efficiency. Splines are arranged in an inner hole of the cylinder body, and a plurality of holes are equally arranged along an outer circle of the inner hole of the cylinder body, and a different shape hole is arranged on the lower part of the utility model. The utility model is characterized in that splines are fully arranged in the inner hole of the cylinder body from top to bottom, and the lower parts of a plurality of holes which are equally arranged are provided with a mould-release pitch and the quantity of the holes is between 7 and 9. The utility model has the advantages that the manufacturing efficiency is high while the manufacturing cost is low; the manufacturing procedure is less; the scale manufacture can be realized. The utility model is suitable for being popularized and applied on plunger pumps.
Description
Technical field
The utility model relates to a kind of technical field of hydraulic planger pump parts cylinder body.
Background technique
Plunger pump is mainly used in the power system of industrial and mineral machinery, require cylinder body that higher density, hardness, intensity and wear resistance are arranged, its traditional structure is such, referring to Fig. 1,2,3, endoporus 1 is shaped on spline 2 in the cylinder body of this plunger pump, circumferential location at cylinder inner bore is evenly distributed with 7 or 9 holes 3, it can adopt traditional machining process, this method stock utilization is low, existing spline has the hole of a plurality of laid abnormities again in the cylinder body, manufacturing procedure complexity and difficulty are higher, are difficult to form produce in batches; Adopt casting technique, yield rate is low, in use is easy to generate the turbid phenomenon of gas; Shrinkage method embedding copper sheathing needs a cover shrinkage equipment, and has the gap between copper sheathing and the cylinder body, therefore under the situation of high pressure, seepage is arranged, and the fastening force decline between copper sheathing and the cylinder body of turning round for a long time has and deviate from danger from cylinder body.As the patent No. is 85108962 Chinese patent " inlaid copper metal cylinder sleeve is technology extremely ", adopts high-strength viscose to make copper sheathing mutually bonding with the cylinder body of moulding in advance, easy to operate, need not special process equipment and environmental conditions.Can high pressure resistant 400Kg/cm with the inlaid copper metal cylinder sleeve that the present invention makes
2Rotational speed 1000～1500RPM, turn round 2000 hours (overload in 100 hours, 100,000 impacts), do not have oil impregnate or copper sheathing to deviate from phenomenon, can be widely used in the cylinder body making of high pressure swash plate, inclined shaft, shaft type plunger pump and the occasion that all revolving body surfaces need copper alloy friction material.Its defective is to adopt special binder, and bonding processing acquires a certain degree of difficulty, and needs gluing, inlays, series of steps such as curing, so manufacturing efficiency is low.
Summary of the invention
Technical problem to be solved in the utility model provide a kind of with powder metallurgical technique manufacturing, manufacturing efficiency height, cost of production reduce, consumes energy is few, and can guarantee the precision and the mechanical property of product, makes the production of cylinder body can form the hydraulic plunger pump cylinder of production in enormous quantities scale.
The utility model solves the problems of the technologies described above the technological scheme that is adopted: this kind hydraulic plunger pump cylinder, there is spline its endoporus the inside at cylinder body, circumferential location outside cylinder inner bore is evenly distributed with a plurality of holes, its underpart is an irregularly-shaped hole, it is characterized in that in cylinder inner bore it being spline from top to bottom entirely, bottom, equally distributed a plurality of hole has the depanning gradient.
The number in above-mentioned a plurality of holes is 7-9.
Above-mentioned cylinder body be infiltration of copper sintered iron alloy make ooze the copper sintered steel.
Compared with prior art, advantage of the present utility model is: adopt the powder metallurgical technique manufacturing, can improve the utilization ratio of material greatly, reduce production costs, and simplify production process, enhance productivity, reduce manufacturing mechanism, energy saving adopts sintering to ooze process for copper, and the density that makes cylinder body is at 7.5 gram per centimeters
3More than, and the mechanical property of agglomerated material is significantly improved, and guaranteeing enough hardness and intensity, wear resistance, the reasonable science of overall construction design makes it can adopt powder metallurgical technique to suppress out.
Description of drawings
The hydraulic planger pump housing structure sectional view that Fig. 1 is traditional;
Fig. 2 is Fig. 1 plan view;
Fig. 3 is Fig. 1 worm's eye view;
Fig. 4 structure sectional view of the present utility model;
Fig. 5 is the attached view of Fig. 4;
Fig. 6 is Fig. 4 worm's eye view.
Embodiment
Below in conjunction with description of drawings embodiment of the present utility model is described in further detail.
As Fig. 4,5,6 signals, this kind hydraulic plunger pump cylinder, its endoporus 1 the inside at cylinder body all changes spline 2 into, each density is even when guaranteeing moulding, thereby the quality of cylinder body and mechanical property are met the demands, also can be shaped according to the performance of the forming machine endoporus of certain depth also can reach the requirement of the internal hole shape of user by a spot of machining.Circumferential location outside cylinder inner bore is evenly distributed with 9 holes 3, and its underpart is an irregularly-shaped hole, and bottom, equally distributed a plurality of hole has the depanning gradient.Increasing the depanning gradient increases for the laid abnormity hole that is shaped is special, and for guaranteeing the intensity of forming die, the hole is respectively with being washed into shape up and down up and down in the laid abnormity hole, and this gradient has guaranteed the enforcement of this method.In order to make cylinder body satisfy enough hardness and intensity, wear resistance, the utility model adopts conventional powder metallurgy to form density, also oozes process for copper by sintering the mechanical property of material is significantly improved, and makes cylinder body density reach 7.5 gram per centimeters
3More than.
Because above improvement has obtained good effect at the shaping cylinder blank.Sintering oozes the application of process for copper, can be shaped under the shaping density of powder metallurgy routine, does not need to adopt special process, and the reduction of shaping density increased the working life of mould, has improved the quality of shaping blank.The improvement in inner splined hole and laid abnormity hole has adapted to the requirement that powder metallurgy is shaped, and has improved the density uniformity of shaping blank, thereby has improved the mechanical property of produced cylinder body, has increased the working life of mould simultaneously.
Claims (2)
1, a kind of hydraulic plunger pump cylinder, there is spline (2) its endoporus at cylinder body (1) the inside, circumferential location outside cylinder inner bore is evenly distributed with a plurality of holes (3), its underpart is an irregularly-shaped hole, it is characterized in that in cylinder inner bore (1) lining be spline (2) from top to bottom entirely, bottom, equally distributed a plurality of holes (3) has the depanning gradient.
2, cylinder body according to claim 1, the number that it is characterized in that described a plurality of hole (3) are 7-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02216106 CN2526605Y (en) | 2002-03-12 | 2002-03-12 | Hydraulic plunger pump cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02216106 CN2526605Y (en) | 2002-03-12 | 2002-03-12 | Hydraulic plunger pump cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2526605Y true CN2526605Y (en) | 2002-12-18 |
Family
ID=33695145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02216106 Expired - Fee Related CN2526605Y (en) | 2002-03-12 | 2002-03-12 | Hydraulic plunger pump cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2526605Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100453804C (en) * | 2007-09-05 | 2009-01-21 | 吴赛珍 | Vertical processing method for cylinder body large round end surface internal spline |
| CN100462560C (en) * | 2007-01-11 | 2009-02-18 | 浙江大学 | Cylinder body used in microscopic performance test of plunger pair |
| CN101961789A (en) * | 2010-10-15 | 2011-02-02 | 苏州莱特复合材料有限公司 | Process for manufacturing cylinder block blank of powder metallurgy plunger pump |
| CN109622975A (en) * | 2018-12-29 | 2019-04-16 | 北京恒源天桥粉末冶金有限公司 | A kind of powder metallurgy combined sintering formula plunger pump cylinder body and preparation method thereof |
| CN112475816A (en) * | 2020-11-27 | 2021-03-12 | 江苏欧盛液压科技有限公司 | Novel processing method for waist-shaped cylinder body of axial plunger pump |
-
2002
- 2002-03-12 CN CN 02216106 patent/CN2526605Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100462560C (en) * | 2007-01-11 | 2009-02-18 | 浙江大学 | Cylinder body used in microscopic performance test of plunger pair |
| CN100453804C (en) * | 2007-09-05 | 2009-01-21 | 吴赛珍 | Vertical processing method for cylinder body large round end surface internal spline |
| CN101961789A (en) * | 2010-10-15 | 2011-02-02 | 苏州莱特复合材料有限公司 | Process for manufacturing cylinder block blank of powder metallurgy plunger pump |
| CN109622975A (en) * | 2018-12-29 | 2019-04-16 | 北京恒源天桥粉末冶金有限公司 | A kind of powder metallurgy combined sintering formula plunger pump cylinder body and preparation method thereof |
| CN112475816A (en) * | 2020-11-27 | 2021-03-12 | 江苏欧盛液压科技有限公司 | Novel processing method for waist-shaped cylinder body of axial plunger pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |