CN101832261A - Axial plunger pump cylinder body - Google Patents
Axial plunger pump cylinder body Download PDFInfo
- Publication number
- CN101832261A CN101832261A CN201010136825A CN201010136825A CN101832261A CN 101832261 A CN101832261 A CN 101832261A CN 201010136825 A CN201010136825 A CN 201010136825A CN 201010136825 A CN201010136825 A CN 201010136825A CN 101832261 A CN101832261 A CN 101832261A
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- China
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- cylinder body
- plunger pump
- axial plunger
- hole
- pump cylinder
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Abstract
The invention relates to a high-pressure high-power axial plunger pump, in particular to an axial plunger pump cylinder body. The axial plunger pump cylinder body is arranged on the wall of a main box of a gear box. In the invention, a baffle plate is arranged on the end surface of the combined high-power axial plunger pump cylinder body, and a copper cylinder hole sleeve is fixed in a cylinder hole; when a hydraulic pump works, a plunger does high-speed alternating motions in the cylinder hole to avoid sleeve pulling faults. The axial plunger pump cylinder body has simple structure without greatly changing the existing product and also has low cost and convenient mounting. By using the invention, the problem of sleeve pulling of the copper sleeve in the cylinder body of the high-power axial plunger pump along with the improvement of the working pressure and the rotating speed is solved, and the reliability of the high-power axial plunger pump is greatly improved.
Description
Technical field
The present invention relates to the high-power axial piston pump, a kind of axial plunger pump cylinder body of more specifically saying so.
Background technique
The hydraulic pump motor system has good stepless change performance and high power density, in industry extensive application such as engineering machinery, farm machinery, lathe, molding machine, metallurgy, mine, petrochemical industry, railway, boats and ships, light industry and machinery, tracked armored vehicles, development has material impact to Chinese national economy.
Airbus A380 reaches hydraulic system pressure by 21MPa and increases to 35MPa, and its hydraulic system reduces weight 1t.USN studies show that: plane hydraulic system is increased to 55MPa by 21MPa, and then the weight of plane hydraulic system can alleviate 30%, and volume can reduce 40%.For a change the backward situation of China's oil hydraulic pump technical merit is developed
High whole, high pressure, high temperature high power hydraulic pump motorBecome the inevitable demand of development.
Because it is more to relate to basic theory, have only minority industrially developed country to grasp the core technology of high power hydraulic pump and motor development at present, these technology are taken as highly secret always.The armored vehicle that France Poclain company produces belongs to the conjuncted hydraulic pump motor of abreast-type with fluid-link steering unit GHD series, its major technique derives from Switzerland Von Roll company, maximum pump discharge 480ml/r, maximum (top) speed 3500rpm, pressure maximum 50MPa, peak output 1000kW.The conjuncted pump motor product of Britain Commercial company has three kinds of 1000HP, 600HP, 320HP etc., and a kind of before wherein is right-angle type double pump double motor structure, maximum (top) speed 3600rpm, pressure maximum 70MPa, peak output 1000kW; The back is inline configuration, 600HP maximum (top) speed 2500rpm, pressure maximum 42MPa, peak output 1000kW for two kinds.
High-power axial plunger pump cylinder body is the combined type cylinder body of edge bronze bushing.Its body material mostly is 20Cr, alloyed steels such as 12CrNi3A and GCr15.The cylinder hole is a soft material, is generally 10-2-3 tin leaded nickel bronze, antimony bronze, antimony lead bronze, ZQSn10-1 bronze, ZQSn11-4-3 bronze, ZQA19-4 bronze etc.High-power axial piston pump is along with the raising of working pressure and rotating speed, and the probability of copper sheathing appearance " pulling out cover " fault in the cylinder body is increasing.In a single day cylinder hole copper sheathing is pulled out, and being worth expensive oil hydraulic pump may scrap moment, and big system also paralyses.
Summary of the invention
Purpose of the present invention is effectively to solve the raising of high-power axial piston pump along with working pressure and rotating speed just, " pulling out cover " fault often appears in the copper sheathing in the cylinder body, by install a device additional at the combined type cylinder body, thereby avoid the generation of " pulling out cover " fault, under the constant substantially situation of volume and weight, significantly improve the reliability of high-power axial piston pump.
The technological scheme that technical solution problem of the present invention is adopted is:
By one each baffle plate being installed at high-power axial piston pump combined type cylinder body end face, cylinder hole copper sheathing is fixed in the cylinder hole, when hydraulic pump works, plunger is the high speed to-and-fro motion in the cylinder hole, avoids " pulling out cover " fault.
Usefulness of the present invention: simple in structure, do not need existing product is carried out big change, cost is low, and is easy for installation.Use the present invention can solve the raising of high-power axial piston pump along with working pressure and rotating speed, problem that the copper sheathing in the cylinder body " pulls out cover " significantly improves the reliability of high-power axial piston pump.
Description of drawings
Fig. 1 axial plunger pump cylinder body sectional view;
Fig. 2 axial plunger pump cylinder body side view;
Major character is among the figure: 1, cylinder body matrix, 2, cylinder hole copper sheathing, 3, the cylinder body periphery, 4, baffle plate, 5, bolt, 6, the cylinder body end face, 7, axial plunger pump cylinder body.
Embodiment
Axial plunger pump cylinder body of the present invention is with reference to figure 1.On cylinder body matrix 1, offer bolt hole, improve the machining accuracy of the periphery 3 and the end face 6 of cylinder body matrix 1 respectively, become the installation and the locating basis of baffle plate 4.Say that baffle plate 4 is by being bolted on the cylinder body matrix.Baffle plate 4 has certain thickness, guarantees enough rigidity and intensity, and the position that baffle plate is corresponding with the cylinder hole is opened the hole respectively, and is fixed on the cylinder body by bolt 5.
For making axial plunger pump cylinder body under different operating modes, satisfy different usage requirements, size to axial plunger pump cylinder body has following requirement: axial plunger pump cylinder body baffle holes diameter D is greater than the diameter 0.5mm of cylinder hole copper sheathing 2, each hole site is corresponding with the cylinder hole, avoid after the assembling interfering with plunger, the baffle plate thickness A is 2.5～3.5mm; Neutral position, baffle plate two hole is provided with lock bolt 5, and bolt quantity is the twice of hole number, and the diameter of bolt is not less than M5.
Claims (3)
1. axial plunger pump cylinder body, it is characterized in that:, cylinder hole copper sheathing is fixed in the cylinder hole, when hydraulic pump works by each baffle plate being installed at high-power axial piston pump combined type cylinder body end face, plunger is the high speed to-and-fro motion in the cylinder hole, avoids " pulling out cover " fault.
2. axial plunger pump cylinder body according to claim 1 is characterized in that: axial plunger pump cylinder body baffle holes diameter D is greater than the diameter 0.5mm of cylinder hole copper sheathing, and each hole site is corresponding with the cylinder hole, and the baffle plate thickness A is 2.5～3.5mm.
3. axial plunger pump cylinder body according to claim 1 is characterized in that: neutral position, baffle plate two hole is provided with lock bolt 5, and bolt quantity is the twice of hole number, and the diameter of bolt is not less than M5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010136825A CN101832261A (en) | 2010-03-31 | 2010-03-31 | Axial plunger pump cylinder body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010136825A CN101832261A (en) | 2010-03-31 | 2010-03-31 | Axial plunger pump cylinder body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101832261A true CN101832261A (en) | 2010-09-15 |
Family
ID=42716439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010136825A Pending CN101832261A (en) | 2010-03-31 | 2010-03-31 | Axial plunger pump cylinder body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101832261A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103697016A (en) * | 2013-12-20 | 2014-04-02 | 龙工（上海）精工液压有限公司 | Cylinder block assembly inlaid with copper bush and machining method for same |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2221111Y (en) * | 1995-01-05 | 1996-02-28 | 韦炳文 | Valve flow-metering high pressure axial plunger pump |
| CN2475490Y (en) * | 2001-03-23 | 2002-02-06 | 田松业 | Roll-mounted stainless steel internal-sheathed hydraulic cylinder |
| CN201137555Y (en) * | 2007-12-21 | 2008-10-22 | 太原矿山机器润滑液压设备有限公司 | High pressure high displacement inclined shaft type axial plunger pump |
| CN101598158A (en) * | 2009-07-17 | 2009-12-09 | 李新桥 | A kind of embedded copper sleeve type hydraulic oil cylinder guide sleeve |
-
2010
- 2010-03-31 CN CN201010136825A patent/CN101832261A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2221111Y (en) * | 1995-01-05 | 1996-02-28 | 韦炳文 | Valve flow-metering high pressure axial plunger pump |
| CN2475490Y (en) * | 2001-03-23 | 2002-02-06 | 田松业 | Roll-mounted stainless steel internal-sheathed hydraulic cylinder |
| CN201137555Y (en) * | 2007-12-21 | 2008-10-22 | 太原矿山机器润滑液压设备有限公司 | High pressure high displacement inclined shaft type axial plunger pump |
| CN101598158A (en) * | 2009-07-17 | 2009-12-09 | 李新桥 | A kind of embedded copper sleeve type hydraulic oil cylinder guide sleeve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103697016A (en) * | 2013-12-20 | 2014-04-02 | 龙工（上海）精工液压有限公司 | Cylinder block assembly inlaid with copper bush and machining method for same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20100915 |