CN106884767A - New inclined tray axial plunger pump - Google Patents
New inclined tray axial plunger pump Download PDFInfo
- Publication number
- CN106884767A CN106884767A CN201710235097.8A CN201710235097A CN106884767A CN 106884767 A CN106884767 A CN 106884767A CN 201710235097 A CN201710235097 A CN 201710235097A CN 106884767 A CN106884767 A CN 106884767A
- Authority
- CN
- China
- Prior art keywords
- plunger
- hole
- pump housing
- pitch
- platen
- 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.)
- Granted
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/20—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
- F04B1/22—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block having two or more sets of cylinders or pistons
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/122—Details or component parts, e.g. valves, sealings or lubrication means
- F04B1/124—Pistons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/122—Details or component parts, e.g. valves, sealings or lubrication means
- F04B1/124—Pistons
- F04B1/126—Piston shoe retaining means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/20—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
- F04B1/2014—Details or component parts
- F04B1/2064—Housings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/20—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
- F04B1/2014—Details or component parts
- F04B1/2078—Swash plates
- F04B1/2085—Bearings for swash plates or driving axles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
A kind of new inclined tray axial plunger pump is provided, including the preceding pump housing, the middle pump housing, cylinder body, the pump housing and power transmission shaft afterwards, it is formed with inclined hole to be installed and is rotated with the rear pump housing located at the pitch installed inside inclined hole in the rear pump housing and is connected, steel ball in the steel ball and spring holder assembly in power transmission shaft other end spline is butted on platen middle part after coordinating with platen, it is formed with the cylinder body end face and through hole corresponding with plunger hole hole position is formed with multiple equally distributed plunger holes and platen, plunger assembly one end is through insertion plunger hole is interior after through hole and is slidably matched with plunger hole, through hole on the plunger assembly other end and platen is butted in inclination side surface after coordinating.Traditional fixed pitch is changed to rotary pitch by the present invention, pitch is set to follow plunger rotation, reduce the frictional force of pitch and plunger, improve mechanical efficiency, meet the belief system requirement of hydraulic pump, plunger and piston shoes are designed as plunger assembly simultaneously, the assembly difficulty of each several part is reduced.
Description
Technical field
The invention belongs to railway switch machine hydraulic system pump technical field, and in particular to a kind of new inclined tray axial direction
Plunger displacement pump.
Background technology
With developing rapidly for railway technology, the separation for track turnout is changed into automatic control from original artificial control
System, this just requires that Hydraulic Switch Machine system will not only have reliability requirement very high when automatically controlling, and is breaking down
When, system can manual switching at the low rotational speed, and the reliability of original hydraulic pump can not meet system requirements.Patent of invention Shen
Numbers 201120206690.8 a kind of " plunger displacement pump " (calling file 1 in the following text) please be disclosed, the swash plate of hemisphere face structure fixes peace in file 1
Loaded on rear pump body, when main shaft drives plunger that flexible reciprocating motion is done in the cylinder holes of cylinder body, plunger is with swash plate for slip rubs
Wipe, frictional resistance is big, meanwhile, the installation form of plunger is clad type structure, and installation difficulty is larger；Application for a patent for invention number
201220064342.6 disclose a kind of " novel axial plunger pump " (calling file 2 in the following text), and swash plate is fixedly installed in bonnet in file 2
In inner chamber, plunger end face is butted on the disc end face being connected with swash plate all the time, and main shaft makes plunger exist after driving plunger rotation
When flexible reciprocating motion is done in plunger hole, under plunger spring effect, plunger end face is butted on disc end face all the time, and plunger is turning
With disc it is sliding friction during dynamic, meanwhile, plunger spring be connected in plunger hole and with plunger is consumable accessory, replacing
Difficulty is big, and the fault rate of plunger displacement pump is big, in sum, it is necessary to be improved.
The content of the invention
Present invention solves the technical problem that：A kind of new inclined tray axial plunger pump is provided, fixed is inclined traditional
Swash plate is changed to rotary pitch, pitch is followed plunger rotation, substantially reduces the frictional force of pitch and plunger, improves
Mechanical efficiency, meets the belief system requirement of hydraulic pump, while plunger and piston shoes are designed as into plunger assembly, structure letter
It is single, greatly reduce the assembly difficulty of each several part.
The technical solution adopted by the present invention：New inclined tray axial plunger pump, including the preceding pump housing, the middle pump housing, cylinder body,
The pump housing and power transmission shaft afterwards, the preceding pump housing are installed on power transmission shaft one end by bearing, and the cylinder body is set in the power transmission shaft other end
And be connected with the spline fitted of the power transmission shaft other end, steel loop and cylinder body excircle interference fit, the middle pump housing passes through needle roller
Bearing I and steel loop excircle are connected, described middle pump housing one end and the preceding pump housing be fixedly connected and the middle pump housing other end with
The rear pump housing positioned at the power transmission shaft other end is fixedly connected, and installation inclined hole is formed with the rear pump housing and inside installation inclined hole
Pitch is rotated with the rear pump housing and is connected, and platen is provided between the pitch and cylinder body, in power transmission shaft other end spline
Steel ball in steel ball and spring holder assembly is butted on platen middle part after coordinating with platen, be formed with multiple on the cylinder body end face and be uniformly distributed
Plunger hole and platen on be formed with through hole corresponding with plunger hole hole position, plunger assembly one end is through inserting in plunger hole after through hole
And be slidably matched with plunger hole, the through hole on the plunger assembly other end and platen is butted in inclination side surface and leads to after coordinating
Crossing after power transmission shaft drives plunger rotation makes pitch follow plunger rotation.
Wherein, the installation inclined hole is for shoulder hole and installs inclined hole built with needle bearing II and ball bearing, described to incline
It is installed on the rear pump housing after swash plate and needle bearing II and ball bearing interference fit.
Further, the plunger assembly includes plunger and piston shoes, and installation rank hole, the installation are formed with inside the piston shoes
Rank hole right-hand member is provided with locking nut and one end is formed with after being screwed with locking nut cooperation in externally threaded plunger insertion installation rank hole
Plunger is fixedly installed on piston shoes, the plunger other end end is butted on pitch and located at the limited cap of the plunger other end
In lower end insertion through hole, the piston shoes are interior through through hole insertion plunger hole and are slidably matched with plunger hole.
Further, the platen right side middle part is formed with V-shaped groove and V-shaped groove bottom surface is formed with the hemisphere being adapted with steel ball
Groove, the steel ball promotes platen to drive plunger assembly to push against pitch after coordinating with half ball groove by steel ball and spring holder assembly.
Present invention advantage compared with prior art：
1st, pitch is made after being connected located at the ball bearing II and ball bearing installed in inclined hole and pitch
Rotated with the rear pump housing and be connected, traditional fixed pitch is changed to rotary pitch, pitch is followed plunger rotation, made
Traditional sliding friction is changed into rolling friction, substantially reduces the frictional force of pitch and plunger, improves mechanical efficiency, meets
The belief system requirement of hydraulic pump；
2nd, plunger and piston shoes are designed as plunger assembly, plunger is fixedly connected by locking nut with piston shoes, structure letter
Single, convenience quick for installation greatly reduces the assembly difficulty of each several part, meets manufacturability requirement；
3rd, this structure is applied to goat system, improves the reliability of hydraulic pump, can import substitutes completely,
For the development of China railways system provides strong technical guarantee.
Brief description of the drawings
Fig. 1 is internal structure schematic diagram of the present invention；
Fig. 2 is the mounting structure schematic diagram of the pump housing and pitch after the present invention；
Fig. 3 is plunger assembly structural representation of the present invention.
Specific embodiment
1-3 describes a kind of embodiment of the invention below in conjunction with the accompanying drawings.
New inclined tray axial plunger pump, including the preceding pump housing 9, the middle pump housing 17, cylinder body 12, the rear pump housing 18 and power transmission shaft
2, the preceding pump housing 9 is installed on the one end of power transmission shaft 2 by bearing, the cylinder body 12 be set in the other end of power transmission shaft 2 and with transmission
The spline fitted connection of the other end of axle 2, steel loop 13 and the excircle interference fit of cylinder body 12, the middle pump housing 17 pass through needle roller axle
I 14 and the mating connection of the excircle of steel loop 13 are held, described one end of the middle pump housing 17 and the preceding pump housing 9 are fixedly connected and the middle pump housing 17 is another
One end is fixedly connected with the rear pump housing 18 positioned at the other end of power transmission shaft 2, installation inclined hole 1 is formed with the rear pump housing 18 and located at peace
Pitch 20 inside dress inclined hole 1 is rotated with the rear pump housing 18 and is connected, and platen 15 is provided between the pitch 20 and cylinder body 12, if
Steel ball 16 in the steel ball and spring holder assembly in the other end spline of power transmission shaft 2 is butted on the middle part of platen 15 after coordinating with platen 15,
It is formed with the end face of the cylinder body 12 on multiple equally distributed plunger holes 3 and platen 15 and is formed with lead to corresponding with the hole position of plunger hole 3
Hole 4, the one end of plunger assembly 11 through inserting in plunger hole 3 after through hole 4 and be slidably matched with plunger hole 3, the plunger assembly 11
Through hole 4 on the other end and platen 15 is butted on the end face of pitch 20 after coordinating and makes after power transmission shaft 2 drives plunger 6 to rotate
Pitch 20 follows plunger 6 to rotate；Specifically, the installation inclined hole 1 is shoulder hole and installs inclined hole 1 built with needle bearing II
19 and ball bearing 21, it is installed on the rear pump housing 18 after the pitch 20 and needle bearing II 19 and the interference fit of ball bearing 21
On；Specifically, the plunger assembly 11 includes plunger 6 and piston shoes 7, installation rank hole 8, the installation are formed with inside the piston shoes 7
The right-hand member of rank hole 8 is provided with locking nut 22 and one end is formed with the insertion of externally threaded plunger 6 and installs and coordinates with locking nut 22 in rank hole 8
Plunger 6 is fixedly installed on piston shoes 7 after screwing, the other end end of the plunger 6 is butted on pitch 20 and another located at plunger 6
In the lower end of the limited cap 10 insertion through hole 4 of one end, the piston shoes 7 are interior through the insertion plunger hole 3 of through hole 4 and slided with plunger hole 3
Coordinate；Specifically, the right side of the platen 15 middle part is formed with V-shaped groove and V-shaped groove bottom surface is formed with the hemisphere being adapted with steel ball 16
Groove 5,16 and half ball groove of the steel ball 5 promotes platen 15 to drive plunger assembly 11 by pitch after coordinating by steel ball and spring holder assembly
20 push against.
In this structure, in the presence of steel ball and spring holder assembly, steel ball 16 is pushed against on the end face of platen 15 all the time, and by
The drive plunger assembly 11 of platen 15 makes the end of plunger 6 in plunger assembly 11 push against on the end face of pitch 20, during work, is driven
Axle 2 drives steel ball and spring holder assembly, cylinder body 12, plunger assembly 11 and the synchronous axial system of platen 15 after rotating, in the effect of plunger 6
Under, pitch 20 follows plunger 6 to rotate, and now, plunger 6 is pivoting friction with pitch 20, and frictional force is substantially reduced, such as Fig. 1
Shown, in the presence of pitch 20, the sealed volume that the plunger 6 and cylinder body 12 for turning to the top of power transmission shaft 2 are formed is maximum, liquid
Force feed is pressed into the presence of air through oil inlet, and the sealing that plunger 6 and the cylinder body 12 positioned at the lower section of power transmission shaft 2 are formed is held
Chamber is minimum, and hydraulic oil is forced out in the presence of air through oil-out.This structure is by located at the ball axle installed in inclined hole 1
Hold II 19 and ball bearing 21 and pitch 20 be connected after make pitch 20 be rotated with the rear pump housing 18 to be connected, traditional is consolidated
Fixed pattern pitch 20 is changed to rotary pitch 20, makes pitch 20 follow plunger 6 to rotate, and traditional sliding friction is changed into rolling
Dynamic friction, substantially reduces the frictional force of pitch 20 and plunger 6, improves mechanical efficiency, meets the reliability system of hydraulic pump
System requirement, plunger assembly is designed as by plunger 6 and piston shoes 7, plunger 6 is fixedly connected by locking nut 22 with piston shoes 7, structure
Simply, convenience quick for installation, greatly reduces the assembly difficulty of each several part, meets manufacturability requirement, and this structure is applied to railway
Goat system, improves the reliability of hydraulic pump, can import substitutes completely, for the development of China railways system is provided
Strong technical guarantee.
Above-described embodiment, simply presently preferred embodiments of the present invention, not for limiting the scope of the present invention, thus it is all with this
The equivalence changes that content described in invention claim is done, all should be included within scope of the invention as claimed.
Claims (4)
1. new inclined tray axial plunger pump, including the preceding pump housing (9), the middle pump housing (17), cylinder body (12), the rear pump housing (18) and
Power transmission shaft (2), the preceding pump housing (9) is installed on power transmission shaft (2) one end by bearing, and the cylinder body (12) is set in power transmission shaft
(2) other end and it is connected with the spline fitted of power transmission shaft (2) other end, steel loop (13) and cylinder body (12) excircle interference fit,
The middle pump housing (17) is connected by needle bearing I (14) and steel loop (13) excircle, the middle pump housing (17)
End is fixedly connected with the preceding pump housing (9) and the middle pump housing (17) other end is solid with the rear pump housing (18) for being located at power transmission shaft (2) other end
Fixed connection, it is characterised in that：It is formed with the rear pump housing (18) and inclined hole (1) is installed and located at the inclination for installing inclined hole (1) inside
Disk (20) is rotated with the rear pump housing (18) and is connected, and platen (15) is provided between the pitch (20) and cylinder body (12), located at transmission
The steel ball (16) in steel ball and spring holder assembly in axle (2) other end spline is butted in platen (15) after coordinating with platen (15)
Portion, is formed with multiple equally distributed plunger holes (3) and platen (15) on cylinder body (12) end face and is formed with and plunger hole (3) hole
Inserted afterwards in plunger hole (3) through through hole (4) and slided with plunger hole (3) in the corresponding through hole (4) in position, plunger assembly (11) one end
Coordinate, the through hole (4) on plunger assembly (11) other end and platen (15) is butted on pitch (20) end face simultaneously after coordinating
Pitch (20) is set to follow plunger (6) to rotate after power transmission shaft (2) drives plunger (6) to rotate.
2. new inclined tray axial plunger pump according to claim 1, it is characterised in that：It is described installation inclined hole (1) be
Shoulder hole and inclined hole (1) is installed built with needle bearing II (19) and ball bearing (21), the pitch (20) and needle roller axle
It is installed on the rear pump housing (18) after holding II (19) and ball bearing (21) interference fit.
3. new inclined tray axial plunger pump according to claim 1, it is characterised in that：Plunger assembly (11) bag
Plunger (6) and piston shoes (7) are included, installation rank hole (8) is formed with inside the piston shoes (7), described installation rank hole (8) right-hand member is provided with locking
Nut (22) and one end be formed with externally threaded plunger (6) insertion install in rank hole (8) coordinate with locking nut (22) screw after will
Plunger (6) is fixedly installed on piston shoes (7), and plunger (6) other end end is butted on pitch (20) and located at plunger (6)
Limited cap (10) lower end of the other end is inserted in through hole (4), the piston shoes (7) inserted in plunger hole (3) through through hole (4) and with
Plunger hole (3) is slidably matched.
4. new inclined tray axial plunger pump according to claim 1, it is characterised in that：Platen (15) right side
Middle part is formed with V-shaped groove and V-shaped groove bottom surface is formed with half ball groove (5) being adapted with steel ball (16), the steel ball (16) and half ball groove
(5) platen (15) is promoted to drive plunger assembly (11) to push against pitch (20) by steel ball and spring holder assembly after coordinating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710235097.8A CN106884767B (en) | 2017-04-12 | 2017-04-12 | Novel inclined tray axial plunger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710235097.8A CN106884767B (en) | 2017-04-12 | 2017-04-12 | Novel inclined tray axial plunger pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106884767A true CN106884767A (en) | 2017-06-23 |
| CN106884767B CN106884767B (en) | 2019-08-09 |
Family
ID=59183437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710235097.8A Active CN106884767B (en) | 2017-04-12 | 2017-04-12 | Novel inclined tray axial plunger pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106884767B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107654365A (en) * | 2017-10-09 | 2018-02-02 | 陕西航天动力高科技股份有限公司 | A kind of plunger and plunger pump |
| CN108035858A (en) * | 2017-12-04 | 2018-05-15 | 陕西航天动力高科技股份有限公司 | A kind of plunger pump |
| CN110748468A (en) * | 2019-11-28 | 2020-02-04 | 厦门大学 | High-speed high-pressure axial plunger pump |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1055041A (en) * | 1990-02-19 | 1991-10-02 | 三电有限公司 | Ball-and-socket connector lubricating structure rotation detecting device refrigeration compressor is arranged |
| CN2164469Y (en) * | 1993-03-05 | 1994-05-11 | 建设部长沙建设机械研究院 | Hydraulic pump |
| CN2268129Y (en) * | 1996-08-20 | 1997-11-19 | 北京铁路局太原电务器材厂 | Semi-axis type axial plunger pump |
| CN201687676U (en) * | 2010-05-21 | 2010-12-29 | 李泽民 | Half-shaft adjustable axial plunger pump |
| CN102454567A (en) * | 2010-10-15 | 2012-05-16 | 夏成法 | Low-noise and large-power hydraulic plunger pump |
| CN206785575U (en) * | 2017-04-12 | 2017-12-22 | 宝鸡和新机电设备有限公司 | New inclined tray axial plunger pump |
-
2017
- 2017-04-12 CN CN201710235097.8A patent/CN106884767B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1055041A (en) * | 1990-02-19 | 1991-10-02 | 三电有限公司 | Ball-and-socket connector lubricating structure rotation detecting device refrigeration compressor is arranged |
| CN2164469Y (en) * | 1993-03-05 | 1994-05-11 | 建设部长沙建设机械研究院 | Hydraulic pump |
| CN2268129Y (en) * | 1996-08-20 | 1997-11-19 | 北京铁路局太原电务器材厂 | Semi-axis type axial plunger pump |
| CN201687676U (en) * | 2010-05-21 | 2010-12-29 | 李泽民 | Half-shaft adjustable axial plunger pump |
| CN102454567A (en) * | 2010-10-15 | 2012-05-16 | 夏成法 | Low-noise and large-power hydraulic plunger pump |
| CN206785575U (en) * | 2017-04-12 | 2017-12-22 | 宝鸡和新机电设备有限公司 | New inclined tray axial plunger pump |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107654365A (en) * | 2017-10-09 | 2018-02-02 | 陕西航天动力高科技股份有限公司 | A kind of plunger and plunger pump |
| CN108035858A (en) * | 2017-12-04 | 2018-05-15 | 陕西航天动力高科技股份有限公司 | A kind of plunger pump |
| CN110748468A (en) * | 2019-11-28 | 2020-02-04 | 厦门大学 | High-speed high-pressure axial plunger pump |
| CN110748468B (en) * | 2019-11-28 | 2020-07-03 | 厦门大学 | High-speed high-pressure axial plunger pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106884767B (en) | 2019-08-09 |
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