CN108561305A - A kind of reciprocating pump crankshaft-link rod of Variable Eccentricity - Google Patents
A kind of reciprocating pump crankshaft-link rod of Variable Eccentricity Download PDFInfo
- Publication number
- CN108561305A CN108561305A CN201711301941.9A CN201711301941A CN108561305A CN 108561305 A CN108561305 A CN 108561305A CN 201711301941 A CN201711301941 A CN 201711301941A CN 108561305 A CN108561305 A CN 108561305A
- Authority
- CN
- China
- Prior art keywords
- crankshaft
- crank
- track
- hole
- reciprocating pump
- 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.)
- Pending
Links
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
- 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
- F04B53/144—Adaptation of piston-rods
-
- 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
- F04B53/006—Crankshafts
Abstract
The present invention discloses a kind of reciprocating pump crankshaft-link rod of Variable Eccentricity, including bent axle, crank and connecting rod, the bent axle includes crankshaft disk, crankshaft disk center is provided with maneton for connecting transmission mechanism, track is additionally provided on crankshaft disk, track centerline passes through bent axle disk center, the track both sides are provided with the positioning screw hole of equidistant arrangement, the crank includes crank axle, crank axle both sides are provided with positioning plate, respective carter both sides positioning screw hole position is provided with through-hole on positioning plate, being fastenedly connected for bent axle and crank can be realized by being passed through on positioning plate through-hole using screw and being screwed in track both sides positioning screw hole；The connecting rod is connected on crank axle；The crankshaft-link rod can carry out reciprocating pump flow-rate adjustment, stability of the enhancing reciprocating pump under low discharge working condition to change eccentricity, using the crankshaft-link rod on the basis of not reducing reciprocating motion of the pistons frequency.
Description
Technical field
The invention belongs to reciprocal pump technical field, the reciprocating pump crankshaft-link rod of specifically a kind of Variable Eccentricity.
Background technology
Reciprocating pump is to move back and forth that swept volume in cylinder is made alternately to increase and contract in pumping cylinder by piston, plunger or diaphragm
It is small to convey liquid or be allowed to the positive displacement pump being pressurized, by regulation motor rotating speed when existing reciprocating pump, to adjust bent axle
Rotating speed, and then regulating piston reciprocating frequency adjusts the flow of reciprocating pump, but reciprocating motion of the pistons frequency is smaller, reciprocating pump
Stability is poorer.
Invention content
Goal of the invention：The purpose of the present invention is for the deficiency in current technology, provide a kind of the reciprocal of Variable Eccentricity
Pump crankshaft-link rod can carry out reciprocal pump discharge using the crankshaft-link rod on the basis of not reducing reciprocating motion of the pistons frequency
It adjusts, stability of the enhancing reciprocating pump under low discharge working condition.
Technical solution：To achieve the above object, the present invention provides a kind of reciprocating pump crankshaft-link rod of Variable Eccentricity, packet
Bent axle, crank and connecting rod are included, the bent axle includes crankshaft disk, and crankshaft disk center is provided with maneton for connecting driver
Structure is additionally provided with track on crankshaft disk, and track centerline is provided with equidistant arrangement by bent axle disk center, the track both sides
Positioning screw hole, the crank include crank axle, and crank axle both sides are provided with positioning plate, two side positioning spiral shell of respective carter on positioning plate
Hole site is provided with through-hole, passes through through-hole on positioning plate using screw and screws in track both sides positioning screw hole and can realize bent axle
With being fastenedly connected for crank；The connecting rod is connected on crank axle.
As a kind of improvement of this programme, the positioning screw hole opening is additionally provided with dowel hole, on the positioning plate
Through-hole diameter is identical as dowel hole, when combination is installed, is accurately positioned to positioning plate using positioning pin.
As a kind of improvement of this programme, bearing is additionally provided between crank axle and connecting rod.
Advantageous effect：A kind of reciprocating pump crankshaft-link rod of Variable Eccentricity of the present invention, crank can be in bent axles
Mobile and fixed in disk upper rail, crank center can be adjusted away from crankshaft disk center, to change crankshaft-link rod bias
Away from, when be biased to away from it is smaller when, reciprocating motion of the pistons stroke is shorter, in the case where speed of crankshaft is constant, reciprocating motion of the pistons frequency
Secondary constant, eccentricity is smaller, and the liquid or gas volume for sucking and squeezing out in moving back and forth every time are smaller, to which flow is smaller；
The crankshaft-link rod is in a manner of changing eccentricity so that reciprocating pump can on the basis of not reducing reciprocating motion of the pistons frequency into
Row reciprocating pump flow-rate adjustment, stability of the enhancing reciprocating pump under low discharge working condition.
Description of the drawings
The reciprocating pump crankshaft rod structure schematic diagram of Fig. 1, the Variable Eccentricity；
Fig. 2, the crankshaft structure schematic diagram；
Fig. 3, the crankshaft crank structural schematic diagram；
Fig. 4, the positioning plate connect detailed section view with crankshaft disk；
Fig. 5, the crankshaft-link rod sectional view；
Reference numerals list：1, bent axle, 2, crank, 3, connecting rod, 4, screw, 5, needle bearing, 6, positioning pin, 11, crankshaft disk,
12, maneton, 13, track, 14, positioning screw hole, 15, dowel hole, 21, crank axle, 22, positioning plate, 23, through-hole.
Specific implementation mode
With reference to the accompanying drawings and detailed description, the present invention is furture elucidated, it should be understood that following specific implementation modes are only
For illustrating the present invention rather than limiting the scope of the invention.It should be noted that word " preceding " used in the following description,
" rear ", "left", "right", "up" and "down" refer to that the direction in attached drawing, word "inner" and "outside" refer respectively to direction or remote
Direction from geometric center of specific component.
A kind of reciprocating pump crankshaft-link rod of Variable Eccentricity as shown in Figure 1, including bent axle 1, crank 2 and connecting rod 3.
As shown in Fig. 2, the bent axle 1 includes crankshaft disk 11,11 center of crankshaft disk is provided with maneton 12 for connecting
Transmission mechanism is connect, track 13 is additionally provided on crankshaft disk 11,13 center line of track passes through 11 center of crankshaft disk, 13 liang of the track
Side is provided with the positioning screw hole 14. of equidistant arrangement
As shown in figure 3, the crank 2 includes crank axle 21,21 both sides of crank axle are provided with positioning plate 22, are corresponded on positioning plate 22
13 both sides positioning screw hole of track, 14 position is provided with through-hole 23, and being fastenedly connected for bent axle 1 and crank 2 can be realized using screw 4.
As shown in figure 4,14 opening of positioning screw hole is additionally provided with dowel hole 15, on positioning plate 22 23 diameter of through-hole with it is fixed
Position pin hole 15 is identical, when combination is installed, is accurately positioned to positioning plate 22 using positioning pin 6, and screw 4 passes through on positioning plate 22
Through-hole 23 simultaneously screws in 13 both sides positioning screw hole 14 of the track and can realize being fastenedly connected for bent axle 1 and crank 2.
As shown in figure 5, connecting rod 3 is connect with crank axle 21, needle bearing 5 is additionally provided between crank axle 21 and connecting rod 3, it is bent
Handle 2 can move on track 13, and screw 4 is connect with the positioning screw hole 14 of 13 both sides different location of track, realize crank 21 and song
The adjusting of 1 centre distance of axis, to change the eccentricity of the crankshaft-link rod.
The technical means disclosed in the embodiments of the present invention is not limited only to the technological means disclosed in the above embodiment, further includes
By the above technical characteristic arbitrarily the formed technical solution of combination.
Claims (3)
1. a kind of reciprocating pump crankshaft-link rod of Variable Eccentricity, which is characterized in that including bent axle, crank and connecting rod, the song
Axis includes crankshaft disk, and crankshaft disk center is provided with maneton and is used to connect transmission mechanism, and track is additionally provided on crankshaft disk,
For track centerline by bent axle disk center, the track both sides are provided with the positioning screw hole of equidistant arrangement, and the crank includes song
Arbor, crank axle both sides are provided with positioning plate, and respective carter both sides positioning screw hole position is provided with through-hole on positioning plate, uses spiral shell
Nail through-hole and screws in track both sides positioning screw hole and can realize being fastenedly connected for bent axle and crank on positioning plate；The company
Bar is connected on crank axle.
2. a kind of reciprocating pump crankshaft-link rod of Variable Eccentricity according to claim 1, it is characterised in that：The positioning
Screw hole opening is additionally provided with dowel hole, and through-hole diameter is identical as dowel hole on the positioning plate, when combination is installed, uses
Positioning pin is accurately positioned positioning plate.
3. a kind of reciprocating pump crankshaft-link rod of Variable Eccentricity according to claim 2, it is characterised in that：Crank axle with
Bearing is additionally provided between connecting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711301941.9A CN108561305A (en) | 2017-12-10 | 2017-12-10 | A kind of reciprocating pump crankshaft-link rod of Variable Eccentricity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711301941.9A CN108561305A (en) | 2017-12-10 | 2017-12-10 | A kind of reciprocating pump crankshaft-link rod of Variable Eccentricity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108561305A true CN108561305A (en) | 2018-09-21 |
Family
ID=63529303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711301941.9A Pending CN108561305A (en) | 2017-12-10 | 2017-12-10 | A kind of reciprocating pump crankshaft-link rod of Variable Eccentricity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108561305A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109648903A (en) * | 2018-12-28 | 2019-04-19 | 宁波固安力机械科技有限公司 | A kind of pull-down punching machine |
| CN111397875A (en) * | 2020-03-30 | 2020-07-10 | 四川中志融创科技有限公司 | Eccentricity adjusting structure and shock absorber detection device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3997081A (en) * | 1975-02-05 | 1976-12-14 | Industriewerke Karlsruhe-Augsburg Aktiengesellschaft | Apparatus for controlling the operation of a package filling device |
| CN85109318A (en) * | 1985-12-19 | 1987-06-24 | 梁信生 | The beater mechanism that rotation function is directly changed |
| US7409901B2 (en) * | 2004-10-27 | 2008-08-12 | Halliburton Energy Services, Inc. | Variable stroke assembly |
| DE102008002101A1 (en) * | 2008-05-30 | 2009-12-03 | Robert Bosch Gmbh | Radial piston pump for feeding fuel into combustion chamber of internal combustion engine, has through-hole for displacing and play-freely contacting driver in direction, where hole is radially outwardly displaced in another direction |
| CN204553191U (en) * | 2015-04-17 | 2015-08-12 | 中海国际海洋工程装备发展（天津）有限公司 | Mud pump for petroleum drilling bent axle |
| CN205277736U (en) * | 2016-01-12 | 2016-06-01 | 中国石油大学(华东) | Novel portable piston water pumper |
| CN106594220A (en) * | 2016-12-22 | 2017-04-26 | 武汉理工大学 | Stroke-adjustable type intermittent movable mechanical device based on non-circular gear divider |
-
2017
- 2017-12-10 CN CN201711301941.9A patent/CN108561305A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3997081A (en) * | 1975-02-05 | 1976-12-14 | Industriewerke Karlsruhe-Augsburg Aktiengesellschaft | Apparatus for controlling the operation of a package filling device |
| CN85109318A (en) * | 1985-12-19 | 1987-06-24 | 梁信生 | The beater mechanism that rotation function is directly changed |
| US7409901B2 (en) * | 2004-10-27 | 2008-08-12 | Halliburton Energy Services, Inc. | Variable stroke assembly |
| DE102008002101A1 (en) * | 2008-05-30 | 2009-12-03 | Robert Bosch Gmbh | Radial piston pump for feeding fuel into combustion chamber of internal combustion engine, has through-hole for displacing and play-freely contacting driver in direction, where hole is radially outwardly displaced in another direction |
| CN204553191U (en) * | 2015-04-17 | 2015-08-12 | 中海国际海洋工程装备发展（天津）有限公司 | Mud pump for petroleum drilling bent axle |
| CN205277736U (en) * | 2016-01-12 | 2016-06-01 | 中国石油大学(华东) | Novel portable piston water pumper |
| CN106594220A (en) * | 2016-12-22 | 2017-04-26 | 武汉理工大学 | Stroke-adjustable type intermittent movable mechanical device based on non-circular gear divider |
Non-Patent Citations (1)
| Title |
|---|
| 段京华等: "《汽车发动机构造》", 28 February 2013, 安徽科学技术出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109648903A (en) * | 2018-12-28 | 2019-04-19 | 宁波固安力机械科技有限公司 | A kind of pull-down punching machine |
| CN111397875A (en) * | 2020-03-30 | 2020-07-10 | 四川中志融创科技有限公司 | Eccentricity adjusting structure and shock absorber detection device |
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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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180921 |