CN2869373Y - No-piston-shoes-and-oil-distributing-disk axial plunger pump - Google Patents

No-piston-shoes-and-oil-distributing-disk axial plunger pump Download PDF

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Publication number
CN2869373Y
CN2869373Y CN 200620089481 CN200620089481U CN2869373Y CN 2869373 Y CN2869373 Y CN 2869373Y CN 200620089481 CN200620089481 CN 200620089481 CN 200620089481 U CN200620089481 U CN 200620089481U CN 2869373 Y CN2869373 Y CN 2869373Y
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CN
China
Prior art keywords
oil
valve seat
piston
pump
pump housing
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
Application number
CN 200620089481
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Chinese (zh)
Inventor
陆伯武
Original Assignee
陆伯武
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 陆伯武 filed Critical 陆伯武
Priority to CN 200620089481 priority Critical patent/CN2869373Y/en
Application granted granted Critical
Publication of CN2869373Y publication Critical patent/CN2869373Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model provides an axle piston pump without the sleeve and the oil distribution plate. This technology is to solve the problems of the complicated structure in the prior common hydraulic system is adopted by the tilted plate axle piston pump, the sleeve and the oil distribution plate are required with very high machining precision, the manufacturing process is very comprehensive, the friction area is very big during working, and the high heating is produced to shorten the service life. The utility model is mainly characterized in that the pump body is a combined body comprising an upper, a central, and a lower section. Wherein the body upper section is connected with the lower section by the stop cut. Inside the pressed oil chamber of the central section is equipped with non-sleeve piston, in the non-sleeve piston is equipped with an oil input hole locating a safety valve inside. The body lower section is connected with a valve seat, in the valve seat is equipped with the oil output hole, inside the valve seat is equipped with the oil output safety valve, the top end of the hole in the valve seat is connected to the oil pressed chamber, the bottom end of the hole is connected with the oil output hole. The positive effects of this model are the structure is without a sleeve and an oil distribution plate and is innovative, the manufacturing process is simple and the heat is lower with reliable performance and longer service life.

Description

No piston shoes do not have the axial piston pump of oil distribution casing
Technical field
The utility model relates to a kind of oil hydraulic pump, and particularly a kind of do not have an axial piston pump that piston shoes do not have oil distribution casing.
Background technique
Oil hydraulic pump in hydraulic system be used for mechanical energy convert to fluid pressure can energy conversion device.Can be divided into rotary type and reciprocating type two big classes, at present cam-type axial piston pump commonly used is exactly a kind of in reciprocating type in the hydraulic system, its structure is complicated, part processing precision such as piston shoes, oil distribution casing height, the manufacturing process complexity, the rubbing contact area is big during work, and wearing and tearing produce high heat easily, cause working life short.
Summary of the invention
It is a kind of at the deficiency that exists in the above-mentioned technology that the purpose of this utility model is to provide, and a kind of axial piston pump that piston shoes do not have oil distribution casing that do not have is provided.Not only structure is felt simply for it, reliable performance, and long service life.
The purpose of this utility model is achieved in that it comprises pump shaft, revolution swash plate, no piston shoes plunger, spring bracket, valve seat, bearing, spring, seal ring, is characterized in that the pump housing is formed a combined type pump housing by upper, middle, and lower part.Pump housing top is connected with seam location centering with the middle part.No piston shoes plunger is housed in the pressure oil cavity in its pump housing stage casing, be processed with oil inlet hole and be provided with in line check valve in the no piston shoes plunger, pump housing hypomere is connected with valve seat, oil drainage hole is housed on valve seat, be provided with the oil extraction one-way valve in the valve seat, valve seat oilhole upper end joins with pressure oil cavity, and the lower end communicates with oil drainage hole.
The utility model has the advantages that no piston shoes, no oil distribution casing, novel structure, technology are simple.Heat is low during work, reliable performance, long service life.
Description of drawings
Further specify the utility model below in conjunction with accompanying drawing.
Accompanying drawing 1 is the utility model structural representation.
Embodiment
By accompanying drawing as can be known, the combined type pump housing 1 is made up of top 10, middle part 17, bottom 29.Be connected with seam 15 location centerings between pump housing top 10 and the middle part 17.The pressure oil cavity 34 in its pump housing stage casing, no piston shoes plunger 4,12 about being equipped with in 21, be processed with oil inlet hole 36,13 in the no piston shoes plunger 4 and 12 respectively and be respectively equipped with in line check valve 35,16, when two valves were opened, oil inlet hole 36,13 promptly led to pressure oil cavity 34,21, and pump housing bottom 29 is connected with valve seat 31,24, oil drainage hole 26 is housed on valve seat, be provided with oil extraction one-way valve 30,25 in the valve seat, valve seat oilhole 32,23 upper ends and pressure oil cavity 34,21 join, and the lower end communicates with oil drainage hole 26.No piston shoes plunger 4,12 bottoms and inside are connected with spring bracket, interior jump ring, spring respectively.Spring 33,20 promotes plungers 4,12 and moves upward, the promotion bearing 5 relative contacts on the upper end that makes plunger 4,12 and the rotary disk 6.Revolution swash plate 6 is connected on the pump shaft 9, and pump shaft 9 is connected with the pump housing 1 with being sealed by seal ring 8 by bearing 7,27 supportings.Be filled with seal ring 28 anti-leaks between each section of upper, middle and lower of the combined type pump housing 1.Filler opening 14 is communicated with low pressure oil pocket 11.
During work, revolution swash plate 6 rotates synchronously with pump shaft 9, and moves up and down in pressure oil cavity 34,21 by the no piston shoes plunger 4,12 of thrust-bearing 5 promotions.The end that circumference rotating locus on revolution swash plate 6 inclined-planes does not have piston shoes plunger 4,12 relatively is a variable shuttling movement track from low to high a kind of and from high to low.When the revolution swash plate turned to position shown in the accompanying drawing, the left side did not have piston shoes plunger 4 and is subjected to the promotion of changeing swash plate 6, motion from top to bottom in pressure oil cavity 34, and the oil pocket volume produces high pressure from large to small.Cavity pressure fluid is opened left side oil extraction one-way valve 30 through left side valve seat oilhole 32 and is flowed in the oil drainage hole 26, is discharged by oil extraction interface 22.This moment, the right side did not have piston shoes plunger 12 under the effect of right side spring 20, motion from bottom to top in right atrial pressure oil pocket 21, the oil pocket volume generation negative pressure of changing from small to big, right side oil extraction one-way valve 25 is closed, in line check valve 16 is opened, and the fluid in the low pressure oil pocket 11 flows in the right atrial pressure oil pocket 21 through oil inlet hole 13.So far left and right sides pressure oil cavity 34,21 has been finished the working procedure of oil extraction and oil suction.Revolution swash plate 6 rotates continuously, about circulation rising again and again of 4,12 of no piston shoes plungers or decline, then finish the continuous operation process of oil suction and oil extraction.
2 and 3 is seal rings, the 18th, and jump ring, the 19th, packing ring, the 36th, oil input channel.

Claims (3)

1, a kind of do not have an axial piston pump that piston shoes do not have oil distribution casing, it comprises pump shaft, revolution swash plate, no piston shoes plunger, spring bracket, valve seat, bearing, spring, seal ring, it is characterized in that, the pump housing is formed a combined type pump housing by upper, middle, and lower part, and pump housing top is connected with seam location centering with the middle part.No piston shoes plunger is housed in the pressure oil cavity in its pump housing stage casing, be processed with oil inlet hole and be provided with in line check valve in the no piston shoes plunger, pump housing hypomere is connected with valve seat, oil drainage hole is housed on valve seat, be provided with the oil extraction one-way valve in the valve seat, valve seat oilhole upper end joins with pressure oil cavity, and the lower end communicates with oil drainage hole.
2, do not have the axial piston pump of oil distribution casing according to the described no piston shoes of claim 1, it is characterized in that: be connected with respectively in the no piston shoes plunger that steel ball, spring, spring drag, interior jump ring, its upper end joins with thrust-bearing on the revolution swash plate, and its lower end and spring join.
3, do not have the axial piston pump of oil distribution casing according to the described no piston shoes of claim 1, it is characterized in that: adopt seam location centering to be connected between pump housing top and the pump housing middle part.
CN 200620089481 2006-03-02 2006-03-02 No-piston-shoes-and-oil-distributing-disk axial plunger pump Expired - Fee Related CN2869373Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200620089481 CN2869373Y (en) 2006-03-02 2006-03-02 No-piston-shoes-and-oil-distributing-disk axial plunger pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200620089481 CN2869373Y (en) 2006-03-02 2006-03-02 No-piston-shoes-and-oil-distributing-disk axial plunger pump

Publications (1)

Publication Number Publication Date
CN2869373Y true CN2869373Y (en) 2007-02-14

Family

ID=37724308

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200620089481 Expired - Fee Related CN2869373Y (en) 2006-03-02 2006-03-02 No-piston-shoes-and-oil-distributing-disk axial plunger pump

Country Status (1)

Country Link
CN (1) CN2869373Y (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101487458B (en) * 2008-07-14 2012-05-23 张全根 Axial variable displacement plunger pump of swash plate
CN102966504A (en) * 2012-12-10 2013-03-13 西安航空动力控制科技有限公司 Axial plunger pump with baffle type one-way valve and without sliding shoe or oil distributing disc
CN104358665A (en) * 2014-11-10 2015-02-18 济南镇海机械厂 Straight-axis plunger pump
CN104405604A (en) * 2014-10-20 2015-03-11 浙江大学 Ultrahigh-pressure axial plunger pump
CN105298968A (en) * 2015-11-24 2016-02-03 岳文智 Industrial hydraulic oil delivery device
CN108979994A (en) * 2018-07-26 2018-12-11 佛山三水鼎力液压机械设备有限公司 A kind of ultrahigh-pressure hydraulic plunger pump of high efficiency and heat radiation
CN112879256A (en) * 2021-03-10 2021-06-01 焦秀智 Experimental device capable of simulating reservoir pressure

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101487458B (en) * 2008-07-14 2012-05-23 张全根 Axial variable displacement plunger pump of swash plate
CN102966504A (en) * 2012-12-10 2013-03-13 西安航空动力控制科技有限公司 Axial plunger pump with baffle type one-way valve and without sliding shoe or oil distributing disc
CN104405604A (en) * 2014-10-20 2015-03-11 浙江大学 Ultrahigh-pressure axial plunger pump
CN104358665A (en) * 2014-11-10 2015-02-18 济南镇海机械厂 Straight-axis plunger pump
CN105298968A (en) * 2015-11-24 2016-02-03 岳文智 Industrial hydraulic oil delivery device
CN108979994A (en) * 2018-07-26 2018-12-11 佛山三水鼎力液压机械设备有限公司 A kind of ultrahigh-pressure hydraulic plunger pump of high efficiency and heat radiation
CN112879256A (en) * 2021-03-10 2021-06-01 焦秀智 Experimental device capable of simulating reservoir pressure

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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