CN107762756B - A kind of reciprocating pump of list actuated by cams single cylinder - Google Patents
A kind of reciprocating pump of list actuated by cams single cylinder Download PDFInfo
- Publication number
- CN107762756B CN107762756B CN201710948136.9A CN201710948136A CN107762756B CN 107762756 B CN107762756 B CN 107762756B CN 201710948136 A CN201710948136 A CN 201710948136A CN 107762756 B CN107762756 B CN 107762756B
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- China
- Prior art keywords
- cylinder
- cylinder sleeve
- cam
- piston rod
- piston
- 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.)
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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
- F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
- F04B9/02—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical
- F04B9/04—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms
- F04B9/042—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms the means being cams
-
- 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
- F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
-
- 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
- F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
- F04B53/162—Adaptations of cylinders
- F04B53/166—Cylinder liners
- F04B53/168—Mounting of cylinder liners in cylinders
Abstract
The invention discloses a kind of reciprocating pumps of single actuated by cams single cylinder, including block, double acting cylinder, cylinder seat and cam, the double acting cylinder includes cylinder sleeve and piston rod, the cylinder sleeve is erected in cylinder seat, and the both ends of the cylinder sleeve offer oil inlet and outlet, and the piston rod is coaxially threaded through in cylinder sleeve, and the piston rod both ends are stretched out outside cylinder sleeve, fixing sleeve is equipped with piston on the piston rod, and cylinder sleeve is divided into two chambers by the piston, and the piston is slidably arranged in cylinder sleeve；The both ends of the piston rod have been symmetrically arranged block, the cam is rotatably arranged between two blocks, the axis direction of the vertical cylinder sleeve in pivot center direction of the cam, the cam can drive two blocks to move, and be displaced piston rod along cylinder sleeve axis direction reciprocating linear.The present invention provides a kind of reciprocating pump of single actuated by cams single cylinder, and simple structure occupies little space, and transmission efficiency is high.
Description
Technical field
The invention belongs to industrial gas-liquid transport field, in particular to a kind of reciprocating pump of single actuated by cams single cylinder.
Background technique
Reciprocating pump is a kind of high pressure positive displacement pump as a kind of common fluid machinery, and oilfield, aerospace has
It is widely applied, reciprocating pump common at present is mostly that crank link mechanism reciprocating pump, hydraulic-driven reciprocating pump and cam mechanism are past
Multiple pump.
In current visible reciprocating pump scheme, when using cam mechanism driving reciprocating pump, often using two or more
The single-acting cylinder of the actuated by cams equal amount of quantity, by design to cam rotational phase difference realize multiple single-acting cylinders according to
Secondary pump drainage, to achieve the purpose that reciprocating pump is continuously conveyed.
The reciprocating pump of more actuated by cams single-acting cylinder structures needs multiple cams and cylinder to realize continuous work, some
Occasion even needs multiple motors, leads to that size is big, transmission efficiency is low, pressure flow stability is low, it is difficult to promote and apply at it
His accurate occasion.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the present invention provides a kind of single actuated by cams single cylinder
Reciprocating pump, simple structure occupy little space, and transmission efficiency is high.
Technical solution: to achieve the above object, technical scheme is as follows:
A kind of reciprocating pump of list actuated by cams single cylinder, including block, double acting cylinder, cylinder seat and cam, the double acting cylinder
Including cylinder sleeve and piston rod, the cylinder sleeve is erected in cylinder seat, and the both ends of the cylinder sleeve offer oil inlet and outlet, the piston
Bar is coaxially threaded through in cylinder sleeve, and the piston rod both ends are stretched out outside cylinder sleeve, and fixing sleeve is equipped with piston on the piston rod, described
Cylinder sleeve is divided into two chambers by piston, and the piston is slidably arranged in cylinder sleeve；The both ends of the piston rod are respectively symmetrically set
It is equipped with block, the cam is rotatably arranged between two blocks, the axis of the vertical cylinder sleeve in pivot center direction of the cam
Direction, the cam can drive two blocks to move, and be displaced piston rod along cylinder sleeve axis direction reciprocating linear.
Further, the cam is complete rule circle, and the rotation center of the cam is provided with camshaft, the cam
Eccentric shaft setting, the diameter of the cam is equal with the distance between two blocks, and the camshaft is arranged in two blocks
Between line on；When the cam is rotated to two extreme positions, diameter line and cylinder sleeve where the camshaft axle center
Central axis is located in same level.
Further, the cylinder seat includes at least one supporting surface, and the cylinder seat is cyclic structure, and the cylinder seat and cylinder
It is connected and is arranged by screw thread pair between set, the cylinder seat is arranged by they sup-port.
Further, the middle position of piston rod is arranged in the piston, and the maximum displacement distance of the piston is equal to gear
Maximum distance of the block to cylinder sleeve end.
Further, check valve is provided at the oil inlet and outlet, the check valve includes the first dump valve, the first suction
Enter valve, the second dump valve and the second inlet valve, and one end of cylinder sleeve is arranged in first dump valve, the first inlet valve, it is described
The other end of cylinder sleeve is arranged in second dump valve, the second inlet valve.
The utility model has the advantages that advantages of the present invention is as follows:
(1) simple installation, reliable operation.Overall structure is simple, and operation is easy.
(2) principle is simple, adaptable.It only needs cam rotate driving block to be displaced, reciprocating motion of the pistons can be made to carry out
The sucking and discharge of liquid.
(3) pressure and flow can be changed by moving the cylinder body for filling different cylinder diameters and control motor speed, without dismantling.
(4) pump drainage of the double acting cylinder is not influenced by motor positive and inverse.
Detailed description of the invention
Attached drawing 1 is a kind of extreme position structural schematic diagram of the invention；
Attached drawing 2 is another extreme position structural schematic diagram of the invention.
Specific embodiment
The present invention will be further explained with reference to the accompanying drawing.
As shown in Figure 1 and Figure 2, a kind of reciprocating pump of single actuated by cams single cylinder, including block 1, double acting cylinder 2, cylinder
Seat 3 and cam 4, the double acting cylinder 2 include cylinder sleeve 2-3 and piston rod 2-6, and the cylinder sleeve 2-3 is erected in cylinder seat 3, described
The both ends of cylinder sleeve 2-3 offer oil inlet and outlet, and contrary check valve is provided at the oil inlet and outlet, described unidirectional
Valve includes the first dump valve 2-2, the first inlet valve 2-1, the second dump valve 2-5 and the second inlet valve 2-4, and described first is discharged
One end of cylinder sleeve 2-3 is arranged in valve 2-2, the first inlet valve 2-1, and the second dump valve 2-5, the second inlet valve 2-4 setting exist
The other end of cylinder sleeve 2-3.The piston rod 2-6 is coaxially threaded through in cylinder sleeve 2-3, and cylinder sleeve is stretched out at the both ends the piston rod 2-6
Outside 2-3, fixing sleeve is equipped with piston on the piston rod 2-6, and cylinder sleeve 2-3 is divided into two chambers, the piston by the piston
It is slidably arranged in cylinder sleeve 2-3；The both ends of the piston rod 2-6 have been symmetrically arranged block 1, the block 1 and piston rod
2-6 is threadedly coupled, convenient for disassembly and assembly, but also can carry out the fine tuning of the distance between block and cam, and the cam 4 is rotatably arranged on
Between two blocks 1, the axis direction of the vertical cylinder sleeve 2-3 in the pivot center direction of the cam 4, the cam 4 can drive two
Block 1 moves, and is displaced piston rod 2-6 along cylinder sleeve 2-3 axis direction reciprocating linear.The rotation of cam 4 can drive block 1 to be displaced,
Reciprocating motion of the pistons can be made to carry out the sucking and discharge of liquid.
The cam 4 is complete rule circle, and the cam 4 is vertically arranged, and the rotation center of the cam 4 is provided with convex
Wheel shaft 4-1, the camshaft 4-1 eccentric setting simultaneously passes through motor driven, between the diameter of the cam 4 and two blocks 1
It is equidistant, i.e. 4 edge surface of cam and the medial surface of left piece of 1-1 and right piece of 1-2 difference is tangent, and the camshaft 4-1 is arranged
On line between two blocks 1；When the cam 4-1 is rotated to two extreme positions, where the axle center the camshaft 4-1
Diameter line and the central axis of cylinder sleeve 2-3 be located in same level, i.e., the maximal margin of cam and minimum edge respectively with
Two blocks are corresponding, and in cam rotation, block 1 can be made constantly to move, and stablize the liquid evacuation in cylinder sleeve, flow is equal
It is even, it can be used for accurate occasion.
Working principle: such as attached drawing 1, the present invention is in limit on the right-right-hand limit position, i.e. camshaft 4-1 is away from 4 left side left piece of 1-1 or cam
The distance at edge is minimum in the duty cycle, and distance of the camshaft 4-1 away from 4 right side edge of right piece of 1-2 or cam is the duty cycle
When interior maximum, 2 left chamber of double acting cylinder is that duty cycle inner volume is maximum, and right chamber is that duty cycle inner volume is minimum.Camshaft 4-1
Continue to rotate (clockwise or counterclockwise), camshaft 4-1 becomes larger away from the distance of left piece of 1-1, pushes left piece of 1-1 to the left
Movement, and then piston rod 2-6 is pulled to move downward, left chamber volume is gradually reduced in double acting cylinder 2, and left cavity fluid is forced through
First dump valve 2-2 is discharged, and right chamber volume is gradually increased in double acting cylinder 2, and right cavity fluid passes through the second inlet valve 2-4 and inhales
Enter.Until it is as shown in Fig. 2 to limit on the left position to work.
Such as attached drawing 2, the present invention is in limit on the left position, i.e. camshaft 4-1 away from 4 left side edge of left piece of 1-1 or cam away from
From to be maximum in the duty cycle, when distance of the camshaft 4-1 away from 4 right side edge of right piece of 1-2 or cam is minimum in the duty cycle,
2 left chamber of double acting cylinder is that duty cycle inner volume is minimum, and right chamber is that duty cycle inner volume is maximum.Camshaft 4-1 continues to rotate
(clockwise or counterclockwise), camshaft 4-1 becomes larger away from the distance of right piece of 1-2, and right piece of 2-2 is pushed to move right, into
And piston rod 2-6 is pulled to move right, left chamber volume is gradually increased in double acting cylinder 2, and left cavity fluid passes through the first inlet valve
2-1 is sucked, and right chamber volume is gradually reduced in double acting cylinder 2, and right cavity fluid is forced through the second dump valve 2-5 discharge.Until
It works as shown in Fig. 1 to limit on the left position.
The cylinder seat 3 includes at least one, and the cylinder seat 3 is cyclic structure, and leads between the cylinder seat 3 and cylinder sleeve 2-3
Screw thread pair connection setting is crossed, the cylinder seat 3 is arranged on ground or platform by they sup-port.Increase the stability of cylinder sleeve,
And be fixed on cylinder sleeve can in cylinder seat, and anti-sliding stop, other convenient disassembly.
The middle position of piston rod 2-6 is arranged in the piston, and the maximum displacement distance of the piston is less than or equal to gear
Block 1 arrives the maximum distance of cylinder sleeve 2-3 inner end.At the end-limit position of piston motion to cylinder sleeve, block also largest motion
To the position of cylinder sleeve outer end, the motion state of double acting cylinder can be clearly observed.
The above is only a preferred embodiment of the present invention, it should be pointed out that: for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (4)
1. a kind of reciprocating pump of list actuated by cams single cylinder, it is characterised in that: including block (1), double acting cylinder (2), cylinder seat (3) and
Cam (4), the double acting cylinder (2) include cylinder sleeve (2-3) and piston rod (2-6), and the cylinder sleeve (2-3) is erected at cylinder seat (3)
On, the both ends of the cylinder sleeve (2-3) offer oil inlet and outlet, and the piston rod (2-6) is coaxially threaded through in cylinder sleeve (2-3),
And cylinder sleeve (2-3) is stretched out outside in the piston rod both ends (2-6), fixing sleeve is equipped with piston, the piston on the piston rod (2-6)
Cylinder sleeve (2-3) is divided into two chambers, the piston is slidably arranged in cylinder sleeve (2-3)；The both ends of the piston rod (2-6)
It has been symmetrically arranged block (1), the cam (4) is rotatably arranged between two blocks (1), the rotation of the cam (4)
The axis direction of the vertical cylinder sleeve of axis direction (2-3), the cam (4) can drive two blocks (1) to move, make piston rod (2-6)
It is displaced along cylinder sleeve (2-3) axis direction reciprocating linear；
The cam (4) is complete rule circle, and the rotation center of the cam (4) is provided with camshaft (4-1), the camshaft
The diameter of (4-1) eccentric setting, the cam (4) is equal with the distance between two blocks (1), and the camshaft (4-1)
It is arranged on the line between two blocks (1)；When cam (4-1) rotation to two extreme positions, the camshaft (4-
1) central axis of the diameter line where axle center and cylinder sleeve (2-3) are located in same level.
2. a kind of reciprocating pump of single actuated by cams single cylinder according to claim 1, it is characterised in that: cylinder seat (3) packet
Containing at least one, the cylinder seat (3) is cyclic structure, and is connect and set by screw thread pair between the cylinder seat (3) and cylinder sleeve (2-3)
It sets, the cylinder seat (3) is arranged by they sup-port.
3. a kind of reciprocating pump of single actuated by cams single cylinder according to claim 1, it is characterised in that: the piston setting exists
The maximum displacement distance in the middle position of piston rod (2-6), the piston is equal to the maximum that block (1) arrives the end cylinder sleeve (2-3)
Distance.
4. a kind of reciprocating pump of single actuated by cams single cylinder according to claim 1, it is characterised in that: at the oil inlet and outlet
It is provided with check valve, the check valve includes the first dump valve (2-2), the first inlet valve (2-1), the second dump valve (2-5)
With the second inlet valve (2-4), and the setting of first dump valve (2-2), the first inlet valve (2-1) is in one end of cylinder sleeve (2-3),
The other end in cylinder sleeve (2-3) is arranged in second dump valve (2-5), the second inlet valve (2-4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710948136.9A CN107762756B (en) | 2017-10-12 | 2017-10-12 | A kind of reciprocating pump of list actuated by cams single cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710948136.9A CN107762756B (en) | 2017-10-12 | 2017-10-12 | A kind of reciprocating pump of list actuated by cams single cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107762756A CN107762756A (en) | 2018-03-06 |
| CN107762756B true CN107762756B (en) | 2019-02-12 |
Family
ID=61266421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710948136.9A Active CN107762756B (en) | 2017-10-12 | 2017-10-12 | A kind of reciprocating pump of list actuated by cams single cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107762756B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11159448A (en) * | 1997-11-21 | 1999-06-15 | Yamato Boring Kk | Cam type pump |
| CN2433412Y (en) * | 2000-07-31 | 2001-06-06 | 庄凤令 | Superhigh pressure radial plunger pump |
| CN2434446Y (en) * | 2000-08-16 | 2001-06-13 | 梁国金 | Water pump |
| CN102345582A (en) * | 2011-10-10 | 2012-02-08 | 中国人民解放军第四军医大学 | Horizontally opposed dual-cylinder vacuum pump |
| WO2016097146A1 (en) * | 2014-12-18 | 2016-06-23 | Ge Healthcare Bio-Sciences Ab | Pump system for inline conditioning |
-
2017
- 2017-10-12 CN CN201710948136.9A patent/CN107762756B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11159448A (en) * | 1997-11-21 | 1999-06-15 | Yamato Boring Kk | Cam type pump |
| CN2433412Y (en) * | 2000-07-31 | 2001-06-06 | 庄凤令 | Superhigh pressure radial plunger pump |
| CN2434446Y (en) * | 2000-08-16 | 2001-06-13 | 梁国金 | Water pump |
| CN102345582A (en) * | 2011-10-10 | 2012-02-08 | 中国人民解放军第四军医大学 | Horizontally opposed dual-cylinder vacuum pump |
| WO2016097146A1 (en) * | 2014-12-18 | 2016-06-23 | Ge Healthcare Bio-Sciences Ab | Pump system for inline conditioning |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107762756A (en) | 2018-03-06 |
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