CN109519351A - A kind of plunger return facilities for crankshaft connecting rod type radial plunger pump - Google Patents
A kind of plunger return facilities for crankshaft connecting rod type radial plunger pump Download PDFInfo
- Publication number
- CN109519351A CN109519351A CN201811392630.2A CN201811392630A CN109519351A CN 109519351 A CN109519351 A CN 109519351A CN 201811392630 A CN201811392630 A CN 201811392630A CN 109519351 A CN109519351 A CN 109519351A
- Authority
- CN
- China
- Prior art keywords
- plunger
- pin shaft
- connecting rod
- rod type
- supporting table
- 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
-
- 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
- F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
- F04B1/0404—Details or component parts
- F04B1/0426—Arrangements for pressing the pistons against the actuated cam; Arrangements for connecting the pistons to the actuated cam
-
- 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
- F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
- F04B1/0404—Details or component parts
- F04B1/0408—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
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
-
- 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
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/14—Pistons, piston-rods or piston-rod connections
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
The present invention relates to a kind of plunger return facilities for crankshaft connecting rod type radial plunger pump.The motion profile of eccentric cam is passed into plunger, realizes the movement and automated backhaul function of plunger when the transmission shaft rotation with eccentric cam by plunger, pin shaft, axle pad and the integral mechanism of collar-shaped.Plunger is pressed on the off-centre operation of crankshaft, two ring sets are in plunger end part of pin shaft, pin shaft is set to link together with bearing outer ring, distribute it is bright can play the feature that crankshaft connecting rod type radial plunger pump rotary inertia is small, transmission performance is good, also can solve driving spring return facilities structure is complicated, the decaying of spring fatiguability the problems such as.
Description
Technical field
The invention belongs to radial plunger pump construction applications, are related to a kind of plunger for crankshaft connecting rod type radial plunger pump time
Range device.
Background technique
Radial plunger pump is that the device of power is provided in hydraulic system, it relies on reciprocating motion of the plunger in cylinder body, is made
The volume of seal operation cavity changes to realize oil suction, pressure oil.Common radial plunger pump according to transmission system structure
Form can be divided into that cylinder is rotatable and crankshaft connecting rod type.The rotatable structure of cylinder is since cylinder body rotates under transmission shaft drive, rotary inertia
Greatly, there are the opposite sliding of fast speed between plunger head and inner walls, rubbing, secondary pv value is very high, and wear problem is more
Seriously；Crankshaft connecting rod type structure cylinder body is not rotated with transmission shaft, reduces the rotary inertia of pump, but since cylinder body is static, column
Plug chamber is located at the outside of plunger, thus, the centrifugal force backhaul that by rotation is generated the same without the rotatable structure of normal direction cylinder, plunger return
Journey needs to increase the size and sophistication of pump configuration as return facilities by spring, and elastic part is at work, frequency
It is numerous to be compressed, it is easy to happen fatigue rupture, influences the service life of pump.
Summary of the invention
The purpose of the present invention: miscellaneous shell structure is provided.
Technical solution of the present invention: a kind of plunger return facilities for crankshaft connecting rod type radial plunger pump, including plunger
5, pin shaft 4, axle pad 3 and lantern ring 6；
The axle pad lower end surface 11 is arc surface, 2 shape of the outer ring cooperation of the axle pad lower end surface and 7 bearing of cam, institute
It states the protrusion of axle pad upper surface 9 and forms two symmetrical supporting tables 10, the both ends of the pin shaft are respectively supported at two symmetrical branch
It supports on platform；Rotationally couple in the middle part of the union end of plunger and the pin shaft；One plunger, 5, pin shafts 4 and 3 structure of axle pad
At plunger assembly；
Multiple plunger assembly ring cloth are in the outer ring of camshaft bearing, and the outer ring of the inner ring surface of the lantern ring and camshaft bearing will
The supporting table and/or end part of pin shaft of all plunger assemblies radially limit, so that cam will drive all plunger assemblies one when moving
Body linkage.
Preferably, the shaft section of end part of pin shaft is discount vibram outlet, forms axis and lacks 15, and the supporting surface of supporting table is arc surface 12,
The outer axial face 13 of the end part of pin shaft is supported on the arc surface of supporting table.
Preferably, the upper surface of the supporting table is exterior arc surface, and the inner ring surface of exterior arc surface and the lantern ring is mutually fitted
Match, without departing from the upper surface of the supporting table when end part of pin shaft supports on the support surface.
Preferably, the shaft section of end part of pin shaft is discount vibram outlet, forms axis and lacks；The upper surface of the supporting table and axis lack face
Exterior arc surface (16,14), and exterior arc surface is adapted with the inner ring surface of the lantern ring.
Preferably, the union end of plunger is circular sleeve or C-shaped sleeve, and c-shaped opening radian is less than π.
Preferably, axis hole is provided in the supporting table, the both ends of pin shaft are respectively supported in the axis hole, while supporting table
Supporting surface be arc surface 12, arc surface is adapted with the inner ring surface of the lantern ring.
Preferably, the inner ring surface of the lantern ring is provided with multiple arc grooves, and the supporting surface of supporting table is arc surface 12, lantern ring
Arc groove and the arc surface of supporting surface be buckled into a cylindrical cavity, the both ends of the pin shaft are respectively supported in cylindrical cavity.
Beneficial effects of the present invention: the present invention replaces bullet using pin, axle pad, plunger the composition return facilities of special construction
Spring return facilities solve the problems, such as performance degradation after elastic element frequently compresses.
Plunger return facilities of the invention, instead of the spring of conventional radial plunger pump stroke reversal, delivery clack can be straight
It connects and is arranged in plunger base, shorten the radial dimension of pump.
Plunger return facilities of the invention are connected together plunger and eccentric cam using two ring sets, and plunger is reciprocal
In motion process, radial motion is more steady, and transmission performance is more preferable；
Plunger return facilities of the invention shorten the size of transmission shaft with the small structure feature of axial dimension, so that
The strength and stiffness of axis increase, while keeping mechanical system axially more compact；
Plunger return facilities of the invention shorten the size of transmission shaft with the small structure feature of axial dimension, so that
The strength and stiffness of axis increase, while keeping mechanical system axially more compact.
Detailed description of the invention
Fig. 1 is explosive view of the invention；
Fig. 2 is assembling schematic diagram of the invention；
Fig. 3 is the structural schematic diagram of axle pad；
Fig. 4 is the structural schematic diagram of axle pad；
Fig. 5 a-5b is the structural schematic diagram of pin shaft；
Fig. 6 a-6c is the structural schematic diagram of embodiment one；
Wherein: 1- rotary shaft, 2 camshaft bearings, 3- axle pad, 4- pin shaft, 5- plunger, 6- lantern ring, 7- cam, 8- plunger case,
9- axle pad upper surface, 10- supporting table, 11- axle pad lower end surface, 12- arc surface, outer axial face 13,14- exterior arc surface, 15- axis lack,
16- exterior arc surface.
Specific embodiment
Such as Fig. 5 a-5b, embodiment one,
A kind of plunger return facilities for crankshaft connecting rod type radial plunger pump, including plunger 5, pin shaft 4, axle pad 3 and set
Ring 6；
The axle pad lower end surface 11 is arc surface, 2 shape of the outer ring cooperation of the axle pad lower end surface and 7 bearing of cam, institute
It states the protrusion of axle pad upper surface 9 and forms two symmetrical supporting tables 10, the both ends of the pin shaft are respectively supported at two symmetrical branch
It supports on platform；Rotationally couple in the middle part of the union end of plunger and the pin shaft；One plunger, 5, pin shafts 4 and 3 structure of axle pad
At plunger assembly；
Multiple plunger assembly ring cloth are in the outer ring of camshaft bearing, and the outer ring of the inner ring surface of the lantern ring and camshaft bearing will
The supporting table and/or end part of pin shaft of all plunger assemblies radially limit, so that cam will drive all plunger assemblies one when moving
Body linkage；
The union end of plunger is circular sleeve or C-shaped sleeve, and c-shaped opening radian is less than π；Axis is provided in the supporting table
Hole, the both ends of pin shaft are respectively supported in the axis hole, while the supporting surface of supporting table is arc surface 12, arc surface and the set
The inner ring surface of ring is adapted.
Such as Fig. 6 a-6c, embodiment two
A kind of plunger return facilities for crankshaft connecting rod type radial plunger pump, including plunger 5, pin shaft 4, axle pad 3 and set
Ring 6；
The axle pad lower end surface 11 is arc surface, 2 shape of the outer ring cooperation of the axle pad lower end surface and 7 bearing of cam, institute
It states the protrusion of axle pad upper surface 9 and forms two symmetrical supporting tables 10, the both ends of the pin shaft are respectively supported at two symmetrical branch
It supports on platform；Rotationally couple in the middle part of the union end of plunger and the pin shaft；One plunger, 5, pin shafts 4 and 3 structure of axle pad
At plunger assembly；
Multiple plunger assembly ring cloth are in the outer ring of camshaft bearing, and the outer ring of the inner ring surface of the lantern ring and camshaft bearing will
The supporting table and/or end part of pin shaft of all plunger assemblies radially limit, so that cam will drive all plunger assemblies one when moving
Body linkage；
The union end of plunger is circular sleeve or C-shaped sleeve, and c-shaped opening radian is less than π；The inner ring surface of the lantern ring is provided with
Multiple arc grooves, and the supporting surface of supporting table is arc surface 12, the arc groove of lantern ring and the arc surface of supporting surface are buckled into one
The both ends of cylindrical cavity, the pin shaft are respectively supported in cylindrical cavity.
Claims (7)
1. a kind of plunger return facilities for crankshaft connecting rod type radial plunger pump, including plunger, pin shaft, axle pad and lantern ring；
The axle pad lower end surface is arc surface, and the outer loop-shaped of the axle pad lower end surface and camshaft bearing cooperates, on the axle pad
End face protrudes to form two symmetrical supporting tables, and the both ends of the pin shaft are respectively supported in two symmetrical supporting tables；Plunger
Union end and the pin shaft in the middle part of rotationally couple；One plunger, a pin shaft and an axle pad constitute plunger assembly；
Multiple plunger assembly ring cloth are in the outer ring of camshaft bearing, and the outer ring of the inner ring surface of the lantern ring and camshaft bearing will own
The supporting table and/or end part of pin shaft of plunger assembly radially limit, so that cam will drive all plunger assemblies and integrally join when moving
It is dynamic.
2. a kind of plunger return facilities for crankshaft connecting rod type radial plunger pump according to claim 1, it is characterized in that:
The shaft section of end part of pin shaft is discount vibram outlet, forms axis and lacks, and the supporting surface of supporting table is arc surface, the outer axial face of the end part of pin shaft
It is supported on the arc surface of supporting table.
3. a kind of plunger return facilities for crankshaft connecting rod type radial plunger pump according to claim 1, it is characterized in that:
The upper surface of the supporting table is exterior arc surface, and exterior arc surface is adapted with the inner ring surface of the lantern ring, end part of pin shaft support
Without departing from the upper surface of the supporting table when on the support surface.
4. a kind of plunger return facilities for crankshaft connecting rod type radial plunger pump according to claim 1, it is characterized in that:
The shaft section of end part of pin shaft is discount vibram outlet, forms axis and lacks；The upper surface of the supporting table and axis lack face be exterior arc surface (16,
14), and exterior arc surface is adapted with the inner ring surface of the lantern ring.
5. a kind of plunger return facilities for crankshaft connecting rod type radial plunger pump according to claim 1, it is characterized in that:
Axis hole is provided in the supporting table, the both ends of pin shaft are respectively supported in the axis hole, while the supporting surface of supporting table is circular arc
Face 12, arc surface are adapted with the inner ring surface of the lantern ring.
6. a kind of plunger return facilities for crankshaft connecting rod type radial plunger pump according to claim 1, it is characterized in that:
The inner ring surface of the lantern ring is provided with multiple arc grooves, and the supporting surface of supporting table is arc surface, the arc groove and supporting surface of lantern ring
Arc surface be buckled into a cylindrical cavity, the both ends of the pin shaft are respectively supported in cylindrical cavity.
7. a kind of plunger return facilities for crankshaft connecting rod type radial plunger pump described in one of -6 according to claim 1,
Feature are as follows: the union end of plunger is circular sleeve or C-shaped sleeve, and c-shaped opening radian is less than π.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811392630.2A CN109519351B (en) | 2018-11-21 | 2018-11-21 | Plunger return device for crankshaft connecting rod type radial plunger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811392630.2A CN109519351B (en) | 2018-11-21 | 2018-11-21 | Plunger return device for crankshaft connecting rod type radial plunger pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109519351A true CN109519351A (en) | 2019-03-26 |
| CN109519351B CN109519351B (en) | 2020-10-20 |
Family
ID=65776589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811392630.2A Active CN109519351B (en) | 2018-11-21 | 2018-11-21 | Plunger return device for crankshaft connecting rod type radial plunger pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109519351B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2257025A1 (en) * | 1974-01-08 | 1975-08-01 | Verlinde Sa | Radial cylinder hydraulic motor - flared portions of pistons interlock to form circle around crankshaft |
| US3968736A (en) * | 1973-05-24 | 1976-07-13 | Felice Pecorari | Radial fluid-pressure apparatus |
| CN2202803Y (en) * | 1994-09-19 | 1995-07-05 | 霍启顺 | Radial plunger pump |
| CN1193805A (en) * | 1997-03-13 | 1998-09-23 | 中华映管股份有限公司 | Positioning structure for assembling eccentric polarizing sheet of electron gun of cathode ray tube |
| CN2758516Y (en) * | 2004-12-17 | 2006-02-15 | 青岛威能动力有限公司 | Device of mechanical energy converting into fluid pressure energy |
| CN104005924A (en) * | 2013-02-25 | 2014-08-27 | 白巨章 | High-power radial plunger pump |
-
2018
- 2018-11-21 CN CN201811392630.2A patent/CN109519351B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3968736A (en) * | 1973-05-24 | 1976-07-13 | Felice Pecorari | Radial fluid-pressure apparatus |
| FR2257025A1 (en) * | 1974-01-08 | 1975-08-01 | Verlinde Sa | Radial cylinder hydraulic motor - flared portions of pistons interlock to form circle around crankshaft |
| CN2202803Y (en) * | 1994-09-19 | 1995-07-05 | 霍启顺 | Radial plunger pump |
| CN1193805A (en) * | 1997-03-13 | 1998-09-23 | 中华映管股份有限公司 | Positioning structure for assembling eccentric polarizing sheet of electron gun of cathode ray tube |
| CN2758516Y (en) * | 2004-12-17 | 2006-02-15 | 青岛威能动力有限公司 | Device of mechanical energy converting into fluid pressure energy |
| CN104005924A (en) * | 2013-02-25 | 2014-08-27 | 白巨章 | High-power radial plunger pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109519351B (en) | 2020-10-20 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Yibao Inventor after: Bai Haipeng Inventor after: Cheng Yong Inventor after: Wu Zhuangfeng Inventor after: Qiao Yun Inventor after: Li Yang Inventor before: Zhang Yibao |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |