CN2208112Y - Single-shaft rotary eccentric positive displacement pump - Google Patents
Single-shaft rotary eccentric positive displacement pump Download PDFInfo
- Publication number
- CN2208112Y CN2208112Y CN 94230578 CN94230578U CN2208112Y CN 2208112 Y CN2208112 Y CN 2208112Y CN 94230578 CN94230578 CN 94230578 CN 94230578 U CN94230578 U CN 94230578U CN 2208112 Y CN2208112 Y CN 2208112Y
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- CN
- China
- Prior art keywords
- rotor
- pump
- pump chamber
- main shaft
- baffle plate
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a single-shaft rotary eccentric positive displacement pump, which comprises a disk-shaped rotor 3 which is eccentrically arranged on the main shaft in the circular pump cavity and in tangency to the wall of a pump cavity ring, a flapper 15 is also arranged in the pump cavity, inlet and outlet liquid holes are arranged on the side wall of the pump cavity on both sides of the flapper, the rotor 3 revolves around the center of the pump cavity. The pump liquid is sucked in and drained off by the continuous circulation movement of the tangent point between the rotor 3 and the pump cavity in the pump cavity and the division of high-pressure and low-pressure areas which are formed in the pump cavity by the tangent point and the flapper 15 by means of isolation of the flapper 15. The utility model has the advantages of reasonable structure, large output flow, small size, high efficiency, long service life, high universality, etc.
Description
The utility model relates to a kind of liquid delivery pump, is that a kind of structure is a single shaft eccentric rotor positive displacement liquid pump, is fit to carry various liquid, particularly high viscosity liquid.
Present positive displacement liquid transfer pump has varied, if any known gear, cam, blade, screw rod, rotary piston pump etc., we can say that each pump all has its oneself characteristics, adaptive capacity and shortcoming deficiency, this is difficult to simply comment on, but in the positive displacement liquid transfer pump, be applicable to the pump of transfer of highly viscous liquid, its main deficiency is that volumetric efficiency is low, complex structure, the manufacturing difficulty, noise is big, and is higher to the viscosity size requirements that is transferred liquid, and it is relatively poor that discharge pressure and flow adapt to the application area ability, universal performance is low, and matching gap becomes big and can not compensate behind the component wear such as rotor, and pump performance is reduced, and shorten working life.
The purpose of this utility model is the deficiency at prior art, overcome the deficiency, design provides a kind of and has easily manufactured, volumetric efficiency and mechanical efficiency height simple in structure, flow is big, noise is little, the positive displacement liquid transfer pump of highly versatile and long service life, and a kind of high pressure single shaft eccentric rotor displacement pump of carrying fluid viscosity bigger of being specially adapted to is provided.
The utility model includes pump case, pump chamber, be installed in the rotor in the pump chamber, the main shaft that drives rotor rotation work constitutes, its technical solution is: in circular pump chamber, be contained in to install on the main shaft at pump chamber center and connect disk rotor, the axle center of rotor is to connect with the eccentric rotating installation in the axle center of main shaft, and rotor and pump chamber are that inscribe is tangent, one baffle plate that radially is provided with is arranged in pump chamber, this baffle plate is connected with sidewall with the ring wall of pump chamber, its radial length is a bit larger tham diameter poor of pump chamber and rotor, the groove that cooperates with baffle plate is arranged on the rotor, on the pump chamber sidewall of baffle plate both sides, offer inlet opening and outage.When main axis rotation, drive the rotor action, rotor is done the revolution around the pump chamber center, points of tangency continuous circulation in pump chamber of rotor and pump chamber is moved, and make pump chamber be divided into high-pressure area and area of low pressure, realize the suction and the drain of pump by point of contact and baffle plate by the isolation of said baffle.
Major technique feature of the present utility model also is: rotor is to install with spindle eccentricity by a bearing means and adjustable eccentric covering device to connect; Between rotor and pump chamber sidewall, be provided with the rotor aiding support mechanism arrangement that is slidingly matched and connects; On pump case, also be provided with the mounting structure form of pressure control regulating mechanism device and the main shaft and the pump housing.
Fig. 1 is the utility model most preferred embodiment structural representation.
Fig. 2 is the A-A sectional view of Fig. 1.
Fig. 3 is the B-B sectional view of Fig. 1.
Fig. 4 is the example structure schematic representation of the rotor of the utility model pump.
Fig. 5 is the C-C sectional view of Fig. 1.
Below in conjunction with accompanying drawing the utility model is elaborated.
The utility model single shaft eccentric rotor displacement pump, as Fig. 1, shown in 2 embodiments, include pump case, pump chamber, be installed in the rotor in the pump chamber, the main shaft that drives rotor rotation work constitutes, its pump case mainly is made of the pump housing 2 and pump cover 1, it is characterized in that: the pump housing 2 has a circular pump chamber 20, main shaft 10 is installed at the pump chamber center, be circular pump chamber 20 and main shaft 10 concentrics, disk rotor 3 is installed on pump chamber inner main axis 10, the axle center of rotor 3 is to connect with the eccentric rotating installation in the axle center of main shaft 10, and rotor 3 is tangent with the ring wall 21 of pump chamber 20, one baffle plate 15 that radially is provided with is arranged in pump chamber 20, this baffle plate 15 is connected with sidewall with the ring wall of pump chamber 20, and promptly the width of baffle plate 15 is consistent with the width of pump chamber 20, and its radial length is a bit larger tham diameter poor of pump chamber 20 and rotor 3, the groove 34 that cooperates with baffle plate 15 is arranged on the rotor 3, on the sidewall 24 of the pump chamber 20 of baffle plate 15 both sides, offer inlet opening 19 and outage 18.When main shaft 10 rotations, drive rotor 3 actions, rotor 3 is subjected to the restriction of baffle plate 15 not do rotation, only do revolution around pump chamber 20 centers, the shape size of the groove 34 on the rotor 3 should guarantee that part motion in rotor 3 that rotor 3 can allow baffle plate 15 to stretch into rotor 3 when doing revolution around pump chamber 20 centers does not interfere, the revolution of rotor 3 makes the rotor 3 and the points of tangency Q of pump chamber ring wall 21 circulate mobile in pump chamber 20 continuously, and make pump chamber 20 be divided into high-pressure area and area of low pressure by point of contact Q and baffle plate 15 by the isolation of baffle plate 15, realize the suction and the drain of pump.
The utility model, main shaft 10 is installed on the pump case by rolling bearing 17,7, plane thrust bearing 8, sliding bearing 9, and wherein rolling bearing 17 is arranged on the pump cover 1, and rotor 3 is being on the main shaft between the two bearings supporting.In the outside of the sliding bearing 9 of main shaft 10,2 of the main shaft 10 and the pump housings are equipped with seal arrangement, and the sealing mechanism device that is made of sealing axle sleeve 11, mechanical seal device 13 and gland 12 promptly is housed.This structure structural good, surface friction drag is little, and mechanical efficiency height, and the rotation work good stability of main shaft 10 and rotor 3 help improving the working pressure of pump.
The utility model, rotor 3 also can relatively rotate to install with the off-centre of main shaft 10 and connect, and can be to adopt the common connection that is slidingly installed, but preferably by bearing means connection are installed.As shown in drawings, be provided with rolling at rotor 3 and 10 on main shaft---needle bearing 5.
The utility model, rotor 3 connects with the installation of main shaft 10, preferably by an eccentricity compensation device, promptly is provided with the eccentricity compensation device at rotor 3 and 10 on main shaft.This eccentricity compensation device cooperates eccentric bushing that connection is installed and spring seat, the pressure spring that is installed between this eccentric bushing and main shaft to constitute by moving radially with main shaft 10.Shown in Fig. 1,2 embodiments, the eccentricity compensation device be by its cross section that is in the pump chamber position be the main shaft 10 of squarish 19 parts, cooperate the external diameter be installed on this main shaft 19 be circular eccentric bushing 4,4 ' and setting be installed in eccentric bushing 4,4 ' with spring seat 23, pressure spring 24 formations of 19 on main shaft.Aforementioned needle bearing 5 is installed on eccentric bushing 4, the 4 ' outer shroud, and rotor 3 is installed on needle bearing 5 outer shrouds by the axis hole at its center.By of the service wear of this eccentricity compensation mechanism arrangement compensation rotor 3 with pump chamber ring wall 21, and the deviation that main shaft 10 produced and brought, guarantee the design gaps of rotor 3 and pump chamber wall 21, also guaranteed simultaneously this pump not liquid body bring hard impurity in the pump chamber into and pump is produced destroy, and prolonged the working life of pump.
The utility model, the basic structure shape of rotor 3 is discs, can be a solid disk, but preferably shown in Fig. 4,5, rotor 3 has annular concentric groove inner chamber 35 in its side, promptly rotor 3 is to be made of sidewall 30, outer shroud 32, installation axle sleeve 33.Corresponding with this rotor 3 on the pump housing, can be provided with in the pump chamber 20 one with the annulus cylindrical shell 25 of pump chamber concentric, and the internal chamber wall 38 of rotor 3 is tangent with annulus cylindrical shell 25 inscribes, has been equivalent to form again in rotor 3 a same less eccentric rotarypump like this.In addition, sidewall baffle plate 31 parts of its diameter greater than outer shroud 32 are arranged preferably on outer shroud 32 outside end faces of rotor 3, it cooperates with respective side end face on the pump chamber 20, further stablizes rotor, helps the rotor smooth working and improves working pressure.
The utility model for making rotor 3 operating movements steadily and motion is stressed rationally slows down wearing and tearing simultaneously, helps improving the working pressure of pump, can be provided with the rotor aiding support mechanism arrangement that is slidingly matched and connects between rotor and pump chamber sidewall.Referring to Fig. 4,6, it is by the pump chamber sidewall---the slide block device of offering on the pump cover 1 60 constitutes by bearing pin 61 and rotor 3 side end face hinge-coupled.
The utility model is provided with one-way valve type pressure and adjusts control gear on the pump housing 2.As shown in Figure 3, its valve pocket 40 that is provided with by structure on the pump housing 2 and valve base 47, valve lever 46, valve lever 46 pressure springs 48, spring seat 49 and valve pocket end cap 45, valve gap 50 mounted thereto, be installed in drive spring seat 49 on the valve gap 50 and move screw rod 51, the handwheel 53 of adjusting pressure and constitute.The valve pocket both sides that separated by valve 46 have passage 56,57 to communicate with the outage that advances of pump.
The utility model preferably is provided with heat insulation cavity interlayer 36 on pump case, can feed hot steam or conduction oil, heats being transferred medium when pump work, eliminates high viscosity medium and solidify bonding when air pump inoperative in pump.
When the utility model most preferred embodiment shown in the drawings has work pressure height or perhaps can improve advantage the utility model single shaft eccentric rotor displacement pump work of working pressure, rotor 3 is driven by main shaft 10 and rotates, the revolution that rotor 3 is done around the pump chamber center, make the points of tangency Q of the circular cylinder 25 in rotor 3 and pump chamber wall 21 and the pump chamber, circulation is moved continuously in pump chamber, and make pump chamber by point of contact Q by the isolation of baffle plate 15, Q ' and baffle plate 15 are divided into high-pressure area and area of low pressure, realize the suction and the drain of pump, when the point of contact Q of rotor 3 and pump chamber wall 21 is in baffle plate 15 positions, rotor 3 outer shroud work are in zero point, this moment, rotor 3 was with inlet opening on the pump chamber sidewall 19 and outage 18 equal complete closed, revolution action along with rotor 3, the displacement at point of contact, advance, outage is opened gradually---and close, finish work one journey.The area of low pressure of pump and high-pressure area size variation and transition process are that smooth change changes gradually, and the transformation of the low high-pressure area of the transformation of the area of low pressure of the suction of rotor 3 inner chambers 35 and drain and high-pressure area and rotor 3 outsides differs 180 degree angles, so this pump work is steady, the steadily no huge impact of splitting of suction liquid, noise is little.This pump pump chamber liquid capacity is big, whole process of rotor 3 work, and the liquid volume that is discharged from and sucks is 100% of a pump chamber liquid capacity, so its volumetric efficiency is high, the output flow of pump is big, compares that to have a volume little, the advantage that efficient is high.
The utility model is simple in structure, and dynamic sealing point is few, and is easily manufactured, and cost is low, long service life, and highly versatile, the liquid that not only is fit to be applied to various viscosity is carried, and working pressure can reach 25kg/cm
2More than.Be specially adapted to industries such as oil, chemical industry and carry various liquid and viscous medium.
Claims (9)
1, a kind of single shaft eccentric rotor displacement pump, include pump case, pump chamber, be installed in the rotor in the pump chamber, the main shaft that drives rotor rotation work constitutes, it is characterized in that: the pump housing (2) has a circular pump chamber (20), main shaft (10) is installed at the pump chamber center, be circular pump chamber (20) and main shaft (10) concentric, go up installation disk rotor (3) at pump chamber inner main axis (10), the axle center of rotor (3) is to connect with the eccentric rotating installation in the axle center of main shaft (10), and rotor (3) is tangent with the ring wall (21) of pump chamber (20), one baffle plate (15) that radially is provided with is arranged in pump chamber (20), this baffle plate (15) is connected with sidewall with the ring wall of pump chamber (20), its radial length is a bit larger tham diameter poor of pump chamber (20) and rotor (3), the groove (34) that cooperates with baffle plate (15) is arranged on the rotor (3), on the pump chamber sidewall (24) of baffle plate (15) both sides, offer inlet opening (19) and outage (18); It drives rotor (3) action when main shaft (10) rotates, rotor (3) is subjected to the restriction of baffle plate (15) only to do to center on the revolution at pump chamber (20) center, the revolution of rotor (3) makes the rotor (3) and the points of tangency (Q) of pump chamber ring wall (21) circulate mobile in pump chamber (20) continuously, and make pump chamber (20) be divided into high-pressure area and area of low pressure by point of contact (Q) and baffle plate (15) by the isolation of baffle plate (15), realize the suction and the drain of pump.
2, pump according to claim 1 is characterized in that: be provided with the eccentricity compensation device between rotor (3) and main shaft (10); Have by moving radially to cooperate and the eccentric bushing (4,4 ') that connects is installed and is installed in the spring seat (23) between this eccentric bushing and main shaft, rotor (3) the eccentricity compensation device that pressure spring (24) constitutes with main shaft (10); Between rotor (3) and main shaft (10), preferably also be provided with rolling bearing (5).
3, pump according to claim 1, it is characterized in that: between rotor (3) and pump chamber sidewall, be provided with rotor (3) the aiding support mechanism arrangement that is slidingly matched and connects, promptly be provided with by the pump chamber sidewall between rotor (3) and pump chamber sidewall---rotor (3) the aiding support mechanism arrangement that the slide block device (60) offered on the pump cover (1) constitutes by bearing pin (61) and rotor (3) side end face (30) hinge-coupled.
4, according to the described pump of claim 1, it is characterized in that: main shaft (10) is installed on the pump case by rolling bearing (17,7), plane thrust bearing (8), sliding bearing (9), wherein rolling bearing (17) is arranged on the pump cover (1), and rotor (3) is being on the main shaft (10) between the two bearings supporting; In the outside of the sliding bearing (9) of main shaft (10), the sealing mechanism device that is made of sealing axle sleeve (11), mechanical seal device (13) and gland (12) is housed between the main shaft (10) and the pump housing (2).
5, pump according to claim 2, it is characterized in that: between rotor (3) and pump chamber sidewall, be provided with rotor (3) the aiding support mechanism arrangement that is slidingly matched and connects, promptly be provided with by the pump chamber sidewall between rotor (3) and pump chamber sidewall---rotor (3) the aiding support mechanism arrangement that the slide block device (60) offered on the pump cover (1) constitutes by bearing pin (61) and rotor (3) side end face (30) hinge-coupled.
6, according to claim 2 or 3 described pumps, it is characterized in that: main shaft (10) is installed on the pump case by rolling bearing (17,7), plane thrust bearing (8), sliding bearing (9), wherein rolling bearing (17) is arranged on the pump cover (1), and rotor (3) is being on the main shaft (10) between the two bearings supporting; In the outside of the sliding bearing (9) of main shaft (10), the sealing mechanism device that is made of sealing axle sleeve (11), mechanical seal device (13) and gland (12) is housed between the main shaft (10) and the pump housing (2).
7, according to any described pump of claim 1-5, it is characterized in that: annular concentric groove inner chamber (35) is arranged in rotor (3) side, in pump chamber (20), be provided with one with the ring cylindrical shell (25) of pump chamber concentric, and the internal chamber wall (38) of rotor (3) is tangent with ring cylindrical shell (25).
8, according to any described pump of claim 1-5, it is characterized in that: adjust control gear being provided with one-way valve type pressure on the pump housing (2): have and go up valve pocket (40) and valve base (47), valve lever (46), valve lever pressure spring (48), spring seat (49) and valve pocket end cap (45), valve gap (50) mounted thereto, the drive spring seat (49) that is installed on the valve gap (50) that structure is provided with by the pump housing (2) and move screw rod (51), handwheel (53) formation of adjusting pressure.
9, according to any described pump of claim 1-5, it is characterized in that: on the housing of pump, be provided with heat insulation cavity interlayer (36).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94230578 CN2208112Y (en) | 1994-11-02 | 1994-11-02 | Single-shaft rotary eccentric positive displacement pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94230578 CN2208112Y (en) | 1994-11-02 | 1994-11-02 | Single-shaft rotary eccentric positive displacement pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2208112Y true CN2208112Y (en) | 1995-09-20 |
Family
ID=33842651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94230578 Expired - Fee Related CN2208112Y (en) | 1994-11-02 | 1994-11-02 | Single-shaft rotary eccentric positive displacement pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2208112Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106703771A (en) * | 2017-01-16 | 2017-05-24 | 丹东纳泰石油机械有限公司 | Lifting device for petroleum production vane pump of petroleum well |
| CN106990020A (en) * | 2017-06-01 | 2017-07-28 | 魏钦磊 | The online rheological analysis device of polymer solution high pressure |
| CN107806408A (en) * | 2017-10-21 | 2018-03-16 | 王友宏 | A kind of rotary eccentric positive displacement pump |
-
1994
- 1994-11-02 CN CN 94230578 patent/CN2208112Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106703771A (en) * | 2017-01-16 | 2017-05-24 | 丹东纳泰石油机械有限公司 | Lifting device for petroleum production vane pump of petroleum well |
| CN106990020A (en) * | 2017-06-01 | 2017-07-28 | 魏钦磊 | The online rheological analysis device of polymer solution high pressure |
| CN107806408A (en) * | 2017-10-21 | 2018-03-16 | 王友宏 | A kind of rotary eccentric positive displacement pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |