CN101949384A - Axial plunger body - Google Patents
Axial plunger body Download PDFInfo
- Publication number
- CN101949384A CN101949384A CN 201010283170 CN201010283170A CN101949384A CN 101949384 A CN101949384 A CN 101949384A CN 201010283170 CN201010283170 CN 201010283170 CN 201010283170 A CN201010283170 A CN 201010283170A CN 101949384 A CN101949384 A CN 101949384A
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- China
- Prior art keywords
- plunger
- piston shoes
- glider
- swash plate
- oil
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- 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.)
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Abstract
The invention discloses an axial plunger body, which comprises a spindle, an oil distributing tray, a cylinder body, a plunger, a swash plate and a glider, wherein the spindle passes through the oil distributing tray, the cylinder body and the swash plate; the plunger is arranged in a plunger hole of the cylinder body; the ball end of the plunger is provided with the glider contacting the swash plate; the front end of the glider is provided with a spherical concave surface matched with the ball end of the plunger, while the rear end is provided with a cylindrical glider cavity; the cylindrical glider cavity is communicated with the spherical concave surface through through holes; a disc seal surface of the rear end of the glider contacts the swash plate; and the sum of the pressure of oil vertical to the disc seal surface on the disc seal surface and the pressure of oil vertical to the top of the glider cavity on the glider cavity is balanced with the horizontal rightward component along the axis direction of the plunger and the horizontal leftward pressure of oil on the plunger. The specific pressure of the glider on a sliding plate is greatly reduced, the work efficiency of a pump is greatly improved, the wear of the glider is reduced, the leakage is reduced, the actual effect condition of the glider is obviously improved, the service life of the glider is prolonged, the cost is saved and the productivity is improved.
Description
Technical field
The present invention relates to a kind of axial columns cock body.
Background technique
The axial columns cock body is on a kind of circumference that a plurality of plungers is configured in a common cylinder body, and makes its plunger center line device parallel with cylinder center line.When cylinder body rotates, by certain mechanism plunger can be done in the plunger hole of cylinder body and do relatively reciprocating motion, realize the function of oil suction and oil extraction by oil distribution mechanism.The axial columns cock body is because simple in structure, reliable operation, and therefore advantage such as oil extraction pressure is big is widely used in productive life.
Axial columns cock body relatively more commonly used at present is used for axial piston pump and oil hydraulic motor more, axial piston pump generally comprises oil distribution casing, cylinder body, plunger-piston shoes structure, main shaft and swash plate, wherein swash plate and oil distribution casing maintain static, main axis rotation, thus the plunger that drives in cylinder body and the cylinder body rotates together.Piston shoes are provided with the backhaul dish that rotates with plunger, piston shoes outward, push backhaul dish as the central spring that supports by steel ball with cylinder body, and the backhaul dish tightly is pressed in piston shoes on the swash plate, make the piston shoes bottom keep sealing.When cylinder body rotated, the intake side plunger was pressed in piston shoes on the swash surfaces by central spring, steel ball and backhaul dish and slides and oil suction, and oil extraction lateral column plug relies on swash plate to force to push back and oil extraction.Because piston shoes are adjacent on swash surfaces, plunger is reciprocating in cylinder body in the cylinder body rotation.In the main axis rotation process in one week, each plunger to-and-fro motion is once finished an oil suction and oil extraction.
Yet, the relative movement pair of axial piston pump is more, as the friction pair of plunger hole/plunger formation, the friction pair that swash plate/piston shoes form, and the friction pair of oil distribution casing/cylinder body end face formation, so there is the shortcoming that friction consumption is big and kinematic pair weares and teares and reveals in this kind pump.In said structure, plunger-piston shoes structure is the key position of swash plate class axial piston pump, it not only will form two pairs of main friction pairs with the plunger hole and the swash plate of outside, himself also comprised the bulb ball-and-socket friction pair that must rotate flexibly, wherein the frictional loss between piston shoes and the swash plate (or slide plate) is the most serious, to the plunger pump performance with play crucial effects working life.
Summary of the invention
The present invention seeks to: a kind of axial columns cock body is provided, simple and reasonable, be easy to realize, area by control piston shoes constituent element can make piston shoes and slide plate be in the threshold state that contacts, there is not residual pressure, significantly reduce the specific pressure of piston shoes disk sealing surface on slide plate, improve the working efficiency of the pump housing, setting up spring in plunger makes plunger ball and piston shoes remain to fit and avoids losing efficacy, reduce the wearing and tearing of piston shoes, reduce and reveal, prolong the working life of piston shoes, save cost, improve production capacity.
Technological scheme of the present invention is: a kind of axial columns cock body, comprise main shaft, oil distribution casing, cylinder body, plunger, swash plate and piston shoes, described main shaft passes oil distribution casing, cylinder body and swash plate, described plunger is loaded in the plunger hole of cylinder body, the bulb end of described plunger is equipped with the piston shoes that contact with swash plate, the front end of piston shoes is provided with the spherical concave surface that cooperates with the bulb of plunger, the rear end of described piston shoes is provided with columniform piston shoes chamber, being provided with through hole between described piston shoes chamber and the spherical concave surface is connected, described piston shoes rear end contact with swash plate for the disk sealing surface, the area of described piston shoes chamber and disk sealing surface makes the suffered suffered oil liquid pressure sum perpendicular to piston shoes chamber end face of oil liquid pressure and piston shoes chamber perpendicular to this face of disk sealing surface in that component and the suffered level of plunger oil liquid pressure left balance each other along the level on the plunger axis direction to the right.
The further technological scheme of the present invention is: a kind of axial columns cock body, comprise main shaft, oil distribution casing, cylinder body, plunger, swash plate and piston shoes, described main shaft passes oil distribution casing, cylinder body and swash plate, described plunger is loaded in the plunger hole of cylinder body, the bulb end of described plunger is equipped with the piston shoes that contact with swash plate, the front end of piston shoes is provided with the spherical concave surface that cooperates with the bulb of plunger, the rear end of described piston shoes is provided with columniform piston shoes chamber, being provided with through hole between described piston shoes chamber and the spherical concave surface is connected, described piston shoes rear end contact with swash plate for the disk sealing surface, the area of described piston shoes chamber and disk sealing surface makes the suffered suffered oil liquid pressure sum perpendicular to piston shoes chamber end face of oil liquid pressure and piston shoes chamber perpendicular to this face of disk sealing surface in that component and the suffered level of plunger oil liquid pressure left balance each other along the level on the plunger axis direction to the right; Described plunger inside is provided with cavity, the bottom of plunger hole is provided with spring seat, the head of described spring seat is an arc, cooperate with the arc-shaped concave of plunger hole bottom, the spring of compression is housed in the described cavity, described spring one end is against the front portion of cavity, and the other end is positioned on the spring seat, and described spring seat inside is provided with the through hole that communicates with oil circuit.
The more detailed technological scheme of the present invention is: a kind of axial columns cock body, comprise main shaft, oil distribution casing, cylinder body, plunger, swash plate and piston shoes, described main shaft passes oil distribution casing, cylinder body and swash plate, described plunger is loaded in the plunger hole of cylinder body, the bulb end of described plunger is equipped with the piston shoes that contact with swash plate, the front end of piston shoes is provided with the spherical concave surface that cooperates with the bulb of plunger, the rear end of described piston shoes is provided with columniform piston shoes chamber, being provided with through hole between described piston shoes chamber and the spherical concave surface is connected, described piston shoes rear end contact with swash plate for the disk sealing surface, the area of described piston shoes chamber and disk sealing surface makes the suffered suffered oil liquid pressure sum perpendicular to piston shoes chamber end face of oil liquid pressure and piston shoes chamber perpendicular to this face of disk sealing surface in that component and the suffered level of plunger oil liquid pressure left balance each other along the level on the plunger axis direction to the right; Described plunger inside is provided with cavity, the bottom of plunger hole is provided with spring seat, the head of described spring seat is an arc, cooperate with the arc-shaped concave of plunger hole bottom, the spring of compression is housed in the described cavity, described spring one end is against the front portion of cavity, and the other end is positioned on the spring seat, and described spring seat inside is provided with the through hole that communicates with oil circuit; The slide plate that is fixed on the swash plate is housed between the end face of described piston shoes and the swash plate; The fore end outer circumference of described piston shoes is equipped with porous slab, and described porous slab is provided with outward porous slab and the spacing back-up ring of piston shoes.
Advantage of the present invention is:
The present invention changes the area in piston shoes chamber and disk sealing surface in the axial columns cock body, component and the suffered level of plunger oil liquid pressure left balance each other to the right along the level on the plunger axis direction to make on the disk sealing surface that piston shoes contact with slide plate the suffered suffered oil liquid pressure sum perpendicular to piston shoes chamber end face of oil liquid pressure and piston shoes chamber perpendicular to this face, this structure greatly reduces the specific pressure of piston shoes sealing supporting surface on slide plate, residual pressure reduces, thereby improved the working efficiency of pump greatly, setting up spring in plunger makes plunger ball and piston shoes remain to fit and avoids losing efficacy, reduce the wearing and tearing of piston shoes, reduce and reveal, significantly improved the actual effect situation of piston shoes, prolong the working life of piston shoes, save cost, improve production capacity.
Description of drawings
Below in conjunction with drawings and Examples the present invention is further described:
Fig. 1 is used for the structural representation of axial piston pump for the present invention.
Wherein: 1 is main shaft; 2 is oil distribution casing; 3 is cylinder body; 4 is plunger; 5 is swash plate; 6 is piston shoes; 7 is plunger hole; 8 is spring; 9 is slide plate; 10 is porous slab; 11 is the piston shoes chamber; 12 is back-up ring; 13 is spring seat.
Embodiment
Embodiment: a kind of axial columns cock body, as shown in Figure 1, comprise main shaft 1, oil distribution casing 2, cylinder body 3, plunger 4, swash plate 5 and piston shoes 6, described main shaft 1 passes oil distribution casing 2, cylinder body 3 and swash plate 5, described plunger 4 is loaded in the plunger hole 7 of cylinder body 3, and its inside is provided with cavity.The bottom of plunger hole 7 is provided with spring seat 13, the head of described spring seat 13 is an arc, cooperate with the arc-shaped concave of plunger hole 7 bottoms, the spring 8 of compression is housed in the described cavity, described spring 8 one ends are against the front portion of cavity, the other end is positioned on the spring seat 13, and described spring seat 13 inside are provided with the through hole that communicates with oil circuit.The spring seat 13 that sphere cooperates is set in the bottom of plunger hole 7, and this spring seat 13 can be located under the restoring force effect of spring 8 automatically.
The bulb end of described plunger 4 is equipped with piston shoes 6, and the front end of piston shoes 6 is provided with the spherical concave surface that cooperates with the bulb of plunger 4, and the slide plate 9 that is fixed on the swash plate 5 is housed between the end face of described piston shoes 6 and the swash plate 5.The fore end outer circumference of described piston shoes 6 is equipped with porous slab 10, is provided with back-up ring 12 outside the described porous slab 10, and 12 pairs of porous slabs 10 of described back-up ring and piston shoes 6 carry out spacing.
The rear end of described piston shoes 6 is provided with columniform piston shoes chamber 11, is provided with through hole between described piston shoes chamber 11 and the spherical concave surface and is connected.Described piston shoes 6 rear ends contact with slide plate 9 for the disk sealing surface, the sectional area in described piston shoes chamber 11 and the area of disk sealing surface make the suffered suffered oil liquid pressure sum perpendicular to piston shoes chamber 11 end faces of oil liquid pressure and piston shoes chamber 11 perpendicular to this face of disk sealing surface component and plunger 4 suffered levels oil liquid pressure left balance each other to the right along the level on plunger 4 axial directions.The present invention and existing piston shoes-piston structure difference just are do not have residual pressure on the described piston shoes 6, rely on the elastic force of spring 8 to keep in touch.
In said structure, swash plate 5, slide plate 9 and oil distribution casing 2 maintain static, and main shaft 1 is by prime mover driven rotary, and main shaft 1 drives cylinder body 3, be loaded on plunger 4 in the plunger hole 7 and piston shoes 6, porous slab 10 etc. rotated together.Spring 8 in the plunger 4 is in compressive state, makes the bulb end of plunger 4 to piston shoes 6 impacting force be arranged, and piston shoes 6 remain with slide plate 9 and contact.As shown in Figure 1, when main shaft 1 rotation, be positioned at plunger 4 ecto-entad motion under the compacting of swash plate 5 of top, spring 8 further compresses, and its sealed volume is carried out the oil extraction action from large to small; Be positioned at plunger 4 motion from inside to outside under the restoring force effect of spring 8 of below, this moment, spring 8 still was in compressive state, made piston shoes 6 and slide plate 9 be adjacent to, and its sealed volume is changed from small to big, and carries out the oil suction action.
Plunger-piston shoes structure is in residual pressure when being zero threshold state, plunger 4 should equate with the component of the suffered substantially horizontal of piston shoes along the suffered level oil liquid pressure left of its axial direction, through the experiment gained, the pressure that acts on piston shoes chamber 11 end faces is identical everywhere, increase along with the distance of each point on the disk sealing surface and reduce and act on pressure on the piston shoes 6 disk sealing surfaces from the center of circle, it is identical with the pressure in piston shoes chamber 11 that the disk sealing surface is positioned at piston shoes chamber 11 pressure on one side, one side be zero substantially away from piston shoes chamber 11.Pressure on the disk sealing surface is gained behind the different pressure integrations everywhere, the suffered pressure sum in itself and piston shoes chamber 11 is perpendicular to the surface of contact of piston shoes 6 with slide plate 9, and this pressure should be identical with plunger 4 suffered oil liquid pressures just along the horizontal component of plunger 4 axial directions when threshold state.And under the effect of spring 9, piston shoes 6 keep in touch with slide plate 9.
The area of Control Shaft of the present invention piston shoes chamber 11 and disk sealing surface in plunger body, component and plunger 4 suffered levels oil liquid pressure left balance each other to the right along the level on plunger 4 axial directions to make on piston shoes 6 and the disk sealing surface that slide plate 9 contacts the suffered suffered oil liquid pressure sum perpendicular to piston shoes chamber end face of oil liquid pressure and piston shoes chamber 11 perpendicular to this face, owing to there is the restoring force of spring 9 in this pump housing, the frictional force of plunger 1 and cylinder body 6 and plunger 1 reciprocating inertial force etc., the specific pressure of sealing supporting surface on slide plate 10 of piston shoes 2 greatly reduced, thereby improved the working efficiency of pump greatly, and the bulb of plunger 4 keeps fitting with piston shoes 6 under the effect of spring 8 all the time, avoiding the two to break away from lost efficacy, reduce the wearing and tearing of piston shoes 2, reduce and reveal, significantly improved the actual effect situation of piston shoes 2, prolong the working life of piston shoes 2, save cost, improve production capacity.
Below only be concrete exemplary applications of the present invention, protection scope of the present invention is not constituted any limitation.In addition to the implementation, the present invention can also have other mode of execution.All employings are equal to the technological scheme of replacement or equivalent transformation formation, all drop within the present invention's scope required for protection.
Claims (4)
1. axial columns cock body, comprise main shaft (1), oil distribution casing (2), cylinder body (3), plunger (4), swash plate (5) and piston shoes (6), described main shaft (1) passes oil distribution casing (2), cylinder body (3) and swash plate (5), described plunger (4) is loaded in the plunger hole (7) of cylinder body (3), the bulb end of described plunger (4) is equipped with the piston shoes (6) that contact with swash plate (5), the front end of piston shoes (6) is provided with the spherical concave surface that cooperates with the bulb of plunger (4), it is characterized in that: the rear end of described piston shoes (6) is provided with columniform piston shoes chamber (11), being provided with through hole between described piston shoes chamber (11) and the spherical concave surface is connected, described piston shoes (6) rear end contact with swash plate (5) for the disk sealing surface, the area of described piston shoes chamber (11) and disk sealing surface make the disk sealing surface suffered perpendicular to this face oil liquid pressure and piston shoes chamber (11) suffered oil liquid pressure sum perpendicular to piston shoes chamber (11) end face component and the suffered level of plunger (4) oil liquid pressure left balance each other to the right along the level on plunger (4) axial direction.
2. axial columns cock body according to claim 1, it is characterized in that: described plunger (4) inside is provided with cavity, the bottom of plunger hole (7) is provided with spring seat (13), the head of described spring seat (13) is an arc, cooperate with the arc-shaped concave of plunger hole (7) bottom, the spring (8) of compression is housed in the described cavity, described spring (8) one ends are against the front portion of cavity, the other end is positioned on the spring seat (13), and described spring seat (13) inside is provided with the through hole that communicates with oil circuit.
3. axial columns cock body according to claim 1 is characterized in that: the slide plate (9) that is fixed on the swash plate (5) is housed between the end face of described piston shoes (6) and the swash plate (5).
4. according to claim 1 or 3 described axial columns cock bodys, it is characterized in that: the fore end outer circumference of described piston shoes (6) is equipped with porous slab (10), and described porous slab (10) is outer to be provided with porous slab (10) and the spacing back-up ring (12) of piston shoes (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010283170 CN101949384A (en) | 2010-09-16 | 2010-09-16 | Axial plunger body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010283170 CN101949384A (en) | 2010-09-16 | 2010-09-16 | Axial plunger body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101949384A true CN101949384A (en) | 2011-01-19 |
Family
ID=43452986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010283170 Pending CN101949384A (en) | 2010-09-16 | 2010-09-16 | Axial plunger body |
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| Country | Link |
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| CN (1) | CN101949384A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102400881A (en) * | 2011-11-07 | 2012-04-04 | 郑州飞机装备有限责任公司 | Transmission mechanism for swinging disc compressor |
| CN107575357A (en) * | 2017-10-29 | 2018-01-12 | 安徽理工大学 | A kind of complete outer row pressure compact form axial plunger pump or motor |
| CN107956871A (en) * | 2017-10-18 | 2018-04-24 | 潍柴动力股份有限公司 | There is the plunger of wear-resistant warping resistance and plunger pump or piston motor |
| CN108105083A (en) * | 2017-11-30 | 2018-06-01 | 青岛力克川液压机械有限公司 | A kind of plunger part of high-pressure plunger type hydraulic pump |
| CN109026582A (en) * | 2018-06-28 | 2018-12-18 | 潍柴动力股份有限公司 | Eccentric abrasion prevention plunger piston slippery boots assembly, plunger pump and piston motor |
| CN109268241A (en) * | 2018-08-13 | 2019-01-25 | 王成广 | Reciprocating air compressor cylinder body and reciprocating air compressor |
| CN113738640A (en) * | 2021-09-02 | 2021-12-03 | 厦门大学 | Controllable electromagnetic composite supporting axial plunger pump swash plate-piston shoe assembly |
| CN114278633A (en) * | 2021-12-03 | 2022-04-05 | 四川航天烽火伺服控制技术有限公司 | Rotary valve |
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| CN2639553Y (en) * | 2003-06-23 | 2004-09-08 | 太原市信联智盈机械装备有限公司 | Axial plunger pump |
| CN1704591A (en) * | 2004-05-25 | 2005-12-07 | 袁训中 | Slanting axial piston pump |
| CN200952456Y (en) * | 2006-08-29 | 2007-09-26 | 陕西航天动力高科技股份有限公司 | Axial variable plunger pump |
| CN101270738A (en) * | 2008-05-12 | 2008-09-24 | 焦正科 | Axial plunger type hydraulic motor or pump |
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2010
- 2010-09-16 CN CN 201010283170 patent/CN101949384A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2639553Y (en) * | 2003-06-23 | 2004-09-08 | 太原市信联智盈机械装备有限公司 | Axial plunger pump |
| CN1704591A (en) * | 2004-05-25 | 2005-12-07 | 袁训中 | Slanting axial piston pump |
| CN200952456Y (en) * | 2006-08-29 | 2007-09-26 | 陕西航天动力高科技股份有限公司 | Axial variable plunger pump |
| CN101270738A (en) * | 2008-05-12 | 2008-09-24 | 焦正科 | Axial plunger type hydraulic motor or pump |
Non-Patent Citations (1)
| Title |
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| 《浙江工业大学硕士学位论文》 20030531 胡新华 轴向柱塞泵静压支承球铰副及柱塞副的理论研究 5-6 , 2 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102400881A (en) * | 2011-11-07 | 2012-04-04 | 郑州飞机装备有限责任公司 | Transmission mechanism for swinging disc compressor |
| CN107956871A (en) * | 2017-10-18 | 2018-04-24 | 潍柴动力股份有限公司 | There is the plunger of wear-resistant warping resistance and plunger pump or piston motor |
| CN107575357A (en) * | 2017-10-29 | 2018-01-12 | 安徽理工大学 | A kind of complete outer row pressure compact form axial plunger pump or motor |
| CN108105083A (en) * | 2017-11-30 | 2018-06-01 | 青岛力克川液压机械有限公司 | A kind of plunger part of high-pressure plunger type hydraulic pump |
| CN109026582A (en) * | 2018-06-28 | 2018-12-18 | 潍柴动力股份有限公司 | Eccentric abrasion prevention plunger piston slippery boots assembly, plunger pump and piston motor |
| CN109268241A (en) * | 2018-08-13 | 2019-01-25 | 王成广 | Reciprocating air compressor cylinder body and reciprocating air compressor |
| CN109268241B (en) * | 2018-08-13 | 2021-04-09 | 王成广 | Reciprocating air compressor cylinder body and reciprocating air compressor |
| CN113738640A (en) * | 2021-09-02 | 2021-12-03 | 厦门大学 | Controllable electromagnetic composite supporting axial plunger pump swash plate-piston shoe assembly |
| CN114278633A (en) * | 2021-12-03 | 2022-04-05 | 四川航天烽火伺服控制技术有限公司 | Rotary valve |
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Application publication date: 20110119 |