CN209959409U - Novel outer curve plunger pump - Google Patents
Novel outer curve plunger pump Download PDFInfo
- Publication number
- CN209959409U CN209959409U CN201920576455.6U CN201920576455U CN209959409U CN 209959409 U CN209959409 U CN 209959409U CN 201920576455 U CN201920576455 U CN 201920576455U CN 209959409 U CN209959409 U CN 209959409U
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- plunger
- cavity
- end cover
- stator
- ball plug
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Abstract
The utility model relates to a suction pump technical field especially relates to a novel outer curve plunger pump. The stator is of a cavity structure with an opening at the upper end, an end cover matched with the opening of the stator is arranged at the opening of the stator, the rotor at the lower part of the rotor shaft is arranged in the cavity of the stator, the rotor is of a columnar structure with an oval cross section, and a rotating shaft at the upper part of the rotor shaft penetrates through the end cover; the center of the outer side of the stator extends outwards to form an annular extension part, a plurality of plunger holes are horizontally and circularly arrayed in the annular extension part of the stator, and the plunger holes penetrate through the side wall of the stator; convenient replacement and maintenance. And the plunger contacts with the curved surface track of the rotor through the ball plug, the contact area of the ball plug and the track is larger, and the contact of the ball plug and the track changes the sliding friction of the plunger and the track into rolling friction in the past, so the friction effect is better, the bearing capacity is stronger, the service life of the plunger is longer, and the noise is lower.
Description
Technical Field
The utility model relates to a suction pump technical field especially relates to a novel outer curve plunger pump.
Background
Radial piston pumps are widely used in various hydraulic devices because of their high pressure, high flow rate, and low noise. The plunger pump of present national research has had certain progress, but its plunger operation of conventional radial plunger pump has certain wearing and tearing after a period, and long-time operation back wearing and tearing are more serious, and the plunger is located inside the plunger pump, is difficult for changing, has consequently designed a novel outer curve plunger pump, and this novel outer curve plunger pump is with the plunger design outside rotor curved surface track, convenient change, the maintenance. And the plunger contacts with the curved surface track of the rotor through the ball plug, the contact area of the ball plug and the track is larger, and the contact of the ball plug and the track changes the sliding friction of the conventional plunger and the track into rolling friction, so that the contact stress is smaller, and certain superiority is improved in the aspect of reducing the abrasion of the plunger compared with the common radial plunger pump.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, adapt to reality needs, provide a novel outer curve plunger pump.
In order to realize the utility model discloses a purpose, the utility model discloses a technical scheme do: a novel outer curve plunger pump comprises a stator 16, a rotor shaft 2, a stator 16 and a plunger 14, wherein the upper end of the stator is provided with an open cavity structure, the opening of the stator is provided with an end cover 1 matched with the opening, a rotor at the lower part of the rotor shaft 2 is arranged in a cavity of a stator 15, the rotor is of a columnar structure with an oval cross section, and a rotating shaft at the upper part of the rotor shaft 2 penetrates through the end cover 1; the center of the outer side of the stator extends outwards to form an annular extension part, a plurality of plunger holes are horizontally and circularly arrayed in the annular extension part of the stator 15, and the plunger holes penetrate through the side wall of the stator 15; a plunger 14 matched with the inner wall is arranged in the plunger hole, and the length of the plunger 14 is smaller than that of the plunger hole; a ball plug 12 is arranged at the end part of the plunger 14 between the plunger 14 and the rotor, an annular groove is arranged at the position of the rotor corresponding to the height of the ball plug 12, the inner wall of the groove is matched with the curved surface of the ball plug 12, and the free end of the ball plug 12 extends into the groove and moves close to the inner wall of the groove under the action of an elastic device; a through hole is vertically formed in a plunger hole on the other side of the plunger 14, an upper end cover 6 and a lower end cover 10 are respectively arranged on the upper surface and the lower surface of an extending part corresponding to the upper through hole and the lower through hole, a water inlet cavity and a water outlet cavity are respectively arranged at the joint ends of the upper end cover 6 and the lower end cover 10 and the through hole, the water inlet cavity and the water outlet cavity are respectively formed by an upper cavity and a lower cavity which are communicated, the diameter of the upper cavity is smaller than that of the lower cavity, an upper ball plug 7 and a lower ball plug 15 which are larger than the diameter of the upper cavity are respectively arranged in the lower cavities of the upper end cover 6 and the lower end cover 10, and a spring is arranged between the; when the rotor shaft 2 rotates, the rotor shaft 2 is elliptical, so when the plunger 14 compresses liquid in the plunger hole, the lower ball plug 15 corresponding to the water outlet cavity of the lower end cover 10 contracts the spring under the action of pressure, water flows out through a gap between the lower ball plug 15 and the lower cavity, and the upper ball plug 7 is tightly matched with the upper cavity of the water inlet cavity; when the plunger 14 expands the plunger hole, the upper ball plug 7 moves downwards under the action of pressure, external water flows into the plunger hole through a gap between the upper ball plug 7 and the lower cavity of the water inlet cavity, and the lower ball plug 15 is tightly matched with the upper cavity of the water outlet cavity under the action of pressure, so that water is pumped circularly.
The upper end of the upper end cover 6 is provided with a liquid inlet cavity cover 5 matched with the upper end of the upper end cover, the liquid inlet cavity cover 5 is in threaded connection with the rotor shaft 2, the positions of the liquid inlet cavity cover 5 corresponding to the upper cavity of the upper end cover 6 are provided with annular liquid inlet cavities communicated with the liquid inlet cavity cover, and the top of the liquid inlet cavity cover 5 is provided with a liquid inlet 18 communicated with the liquid inlet cavity cover.
The end cover 1 is fixedly connected with the stator 16 through bolts 4.
And a sealing rubber ring 3 for sealing is arranged on the contact surface of the rotor shaft 2 and the end cover 1.
The plunger hole is a through hole, and a plunger cover 9 tightly matched with the through hole is arranged at the through hole at the outer side of the plunger hole.
The bottom of the lower end cover 10 is provided with a liquid outlet cavity cover 11 matched with the lower end cover, and the position of the liquid outlet cavity cover 11 corresponding to the lower cavity of the lower end cover 10 is provided with an outlet pipe 17.
The beneficial effects of the utility model reside in that:
according to the novel outer curve plunger pump disclosed by the invention, the plunger is designed outside the curved surface track of the rotor, so that the replacement and the maintenance are convenient. And the plunger contacts with the curved surface track of the rotor through the ball plug, the contact area of the ball plug and the track is larger, and the contact of the ball plug and the track changes the sliding friction of the plunger and the track into rolling friction in the past, so the friction effect is better, the bearing capacity is stronger, the service life of the plunger is longer, and the noise is lower.
Drawings
The present invention will be further described with reference to the accompanying drawings and embodiments.
FIG. 1 is a vertical cross-sectional view;
FIG. 2 is a horizontal cross-sectional view;
fig. 3 is a schematic diagram of the external structure of the present invention.
The device comprises an end cover 1, a rotor shaft 2, a sealing rubber ring 3, a bolt 4, a liquid inlet cavity 5, an upper end cover 6, an upper ball plug 7, a ball plug spring 8, a plunger cover 9, a lower end cover 10, a liquid outlet cavity 11, a ball plug 12, a plunger spring 13, a plunger 14, a lower ball plug 15, a stator 16, an outlet pipe 17 and a liquid inlet 18.
Detailed Description
The invention will be further described with reference to the following figures and examples:
see fig. 1-3.
The utility model discloses a novel outer curve plunger pump, including stator 16, rotor shaft 2, stator 16 and plunger 14, the stator is the upper end and is provided with open-ended cavity structure, the opening part of stator is provided with end cover 1 that matches with it, the rotor of rotor shaft 2 lower part sets up in the cavity of stator 15, the rotor is the column structure that the cross-section is oval, the pivot of rotor shaft 2 upper portion passes end cover 1; the center of the outer side of the stator extends outwards to form an annular extension part, a plurality of plunger holes are horizontally and circularly arrayed in the annular extension part of the stator 15, and the plunger holes penetrate through the side wall of the stator 15; a plunger 14 matched with the inner wall is arranged in the plunger hole, and the length of the plunger 14 is smaller than that of the plunger hole; a ball plug 12 is arranged at the end part of the plunger 14 between the plunger 14 and the rotor, an annular groove is arranged at the position of the rotor corresponding to the height of the ball plug 12, the inner wall of the groove is matched with the curved surface of the ball plug 12, and the free end of the ball plug 12 extends into the groove and moves close to the inner wall of the groove under the action of an elastic device; a through hole is vertically formed in a plunger hole on the other side of the plunger 14, an upper end cover 6 and a lower end cover 10 are respectively arranged on the upper surface and the lower surface of an extending part corresponding to the upper through hole and the lower through hole, a water inlet cavity and a water outlet cavity are respectively arranged at the joint ends of the upper end cover 6 and the lower end cover 10 and the through hole, the water inlet cavity and the water outlet cavity are respectively formed by an upper cavity and a lower cavity which are communicated, the diameter of the upper cavity is smaller than that of the lower cavity, an upper ball plug 7 and a lower ball plug 15 which are larger than the diameter of the upper cavity are respectively arranged in the lower cavities of the upper end cover 6 and the lower end cover 10, and a spring is arranged between the; when the rotor shaft 2 rotates, the rotor shaft 2 is elliptical, so when the plunger 14 compresses liquid in the plunger hole, the lower ball plug 15 corresponding to the water outlet cavity of the lower end cover 10 contracts the spring under the action of pressure, water flows out through a gap between the lower ball plug 15 and the lower cavity, and the upper ball plug 7 is tightly matched with the upper cavity of the water inlet cavity; when the plunger 14 expands the plunger hole, the upper ball plug 7 moves downwards under the action of pressure, external water flows into the plunger hole through a gap between the upper ball plug 7 and the lower cavity of the water inlet cavity, and the lower ball plug 15 is tightly matched with the upper cavity of the water outlet cavity under the action of pressure, so that water is pumped circularly.
The upper end of the upper end cover 6 is provided with a liquid inlet cavity cover 5 matched with the upper end of the upper end cover, the liquid inlet cavity cover 5 is in threaded connection with the rotor shaft 2, the positions of the liquid inlet cavity cover 5 corresponding to the upper cavity of the upper end cover 6 are provided with annular liquid inlet cavities communicated with the liquid inlet cavity cover, and the top of the liquid inlet cavity cover 5 is provided with a liquid inlet 18 communicated with the liquid inlet cavity cover.
The end cover 1 is fixedly connected with the stator 16 through bolts 4.
And a sealing rubber ring 3 for sealing is arranged on the contact surface of the rotor shaft 2 and the end cover 1.
The plunger hole is a through hole, and a plunger cover 9 tightly matched with the through hole is arranged at the through hole at the outer side of the plunger hole.
The bottom of the lower end cover 10 is provided with a liquid outlet cavity cover 11 matched with the lower end cover, and the position of the liquid outlet cavity cover 11 corresponding to the lower cavity of the lower end cover 10 is provided with an outlet pipe 17.
Six plunger chambers with the same size are uniformly distributed on the rotor shaft 2, the liquid inlet chamber 5, the upper end cover 6 and the stator 15 are connected through bolts, the lower end cover 10 and the liquid outlet chamber 11 are connected with the stator 15 through bolts, the head part of the plunger 14 is provided with a ball plug 12, the tail part of the plunger is provided with a plunger spring 13, the plunger cover 9 is connected with the stator 15 through threads, each part of a rotor curved surface guide rail of the inner wall of the rotor shaft 2 is smooth, and different curved surfaces can be used as rotor curved surfaces of the rotor shaft as required.
The working process of the novel outer curve plunger pump in the figures 1 and 2 is that when a motor drives a rotor shaft 2 to rotate, a rotor curved surface on the rotor shaft 2 rotates along with the rotor curved surface, a ball plug 12 and a plunger 14 tightly cling to the rotor curved surface under the action of a spring force of a plunger spring 13 to move back and forth relative to a plunger cavity, so that an entering transmission medium is pressurized, a ball plug 7 tightly clings to a liquid outlet cavity 11 and a liquid inlet cavity 5 under the action of a ball plug spring 8, so that a plunger 14, a plunger hole and a plunger cover 9 of the ball plug are enabled, an upper ball plug 7, an upper end cover 6, a lower end cover 10 and a lower ball plug 15 form a working cavity volume which is periodically changed, when the plunger 14 moves from a track curve short shaft to a long shaft, the working cavity volume is increased, the upper ball plug 7 is communicated with the liquid inlet cavity 5 under the action of negative pressure of the working cavity, and the lower ball plug 15 is isolated from the liquid outlet cavity 11 under the action of the negative, therefore, the transmission medium is sucked at low pressure, when the transmission medium moves to the short shaft from the long shaft, the volume of the working cavity is reduced, the upper ball plug 7 is isolated from the liquid inlet cavity 5 under the action of the high pressure of the working cavity and the ball plug spring 8, and the lower ball plug 15 is communicated with the liquid outlet cavity 11 under the action of the high pressure of the working cavity to press out the high-pressure transmission medium. The plunger continuously and periodically moves, so that high-pressure transmission medium is continuously output.
The number of the long half shaft and the short half shaft of the novel outer curve plunger pump is two or other numerical values, the number of the action is two or four or six or other numerical values, the number of the plungers and the number of the ball plugs are both six or other numerical values, and the plungers and the ball plugs are filled with lubricating grease.
The novel outer curve plunger pump is provided with two low-pressure inlets for hydraulic medium and 6 high-pressure outlets for hydraulic medium, and the two low-pressure inlets and the 6 high-pressure outlets are symmetrically distributed.
The connection structure comprises a liquid inlet cavity 5, an upper end cover 6 and a stator 15 which are connected through bolts, a lower end cover 10, a liquid outlet cavity 11 and the stator 15 which are connected through bolts, a ball plug 12 is arranged at the head part of a plunger 14, a plunger spring 13 is arranged at the tail part of the plunger, a plunger cover 9 is connected with the stator 15 through threads, an outlet pipe 17 is connected with the stator 16 through threads,
the transmission structure is that when the motor drives the rotor shaft 2 to rotate, the rotor curved surface on the rotor shaft 2 rotates along with the rotor curved surface, the ball plug 12 and the plunger 14 tightly move back and forth relative to the plunger cavity along with the rotor curved surface under the action of the spring force of the plunger spring 13, so that the pressure of the entering transmission medium is increased.
The working principle is that when the motor drives the rotor shaft 2 to rotate, the rotor curved surface on the rotor shaft 2 rotates along with the rotor curved surface, the ball plug 12 and the plunger 14 tightly move back and forth relative to the plunger cavity under the action of the spring force of the plunger spring 13, so that the entered transmission medium is pressurized, the ball plug 7 tightly adheres to the liquid outlet cavity 11 and the liquid inlet cavity 5 under the action of the ball plug spring 8, so that the plunger 14, the plunger hole and the plunger cover 9, the upper ball plug 7, the upper end cover 6, the lower end cover 10 and the lower ball plug 15 form a working cavity with a periodically changed volume, when the plunger 14 moves from the minor axis of the track curve to the major axis, the working cavity becomes larger in volume, the upper ball plug 7 is communicated with the liquid inlet cavity 5 under the action of the negative pressure of the working cavity, the lower ball plug 15 is isolated from the liquid outlet cavity 11 under the action of the negative pressure of the working cavity and the ball plug spring 8, so as to realize low-pressure transmission medium, when the ball plug moves from the long shaft to the short shaft, the volume of the working cavity is reduced, the upper ball plug 7 is isolated from the liquid inlet cavity 5 under the action of high pressure of the working cavity and the ball plug spring 8, and the lower ball plug 15 is communicated with the liquid outlet cavity 11 under the action of high pressure of the working cavity to press out high-pressure transmission media. The plunger continuously and periodically moves, so that high-pressure transmission medium is continuously output.
The above mentioned is only the embodiment of the present invention, not the limitation of the patent scope of the present invention, all the equivalent transformations made by the contents of the specification and the drawings or the direct or indirect application in the related technical field are included in the patent protection scope of the present invention.
Claims (6)
1. The utility model provides a novel outer curve plunger pump, includes stator (16), rotor shaft (2), stator (16) and plunger (14), its characterized in that: the stator is of a cavity structure with an opening at the upper end, an end cover (1) matched with the opening of the stator is arranged at the opening of the stator, a rotor at the lower part of the rotor shaft (2) is arranged in a cavity of the stator (16), the rotor is of a columnar structure with an oval cross section, and a rotating shaft at the upper part of the rotor shaft (2) penetrates through the end cover (1); the center of the outer side of the stator extends outwards to form an annular extension part, a plurality of plunger holes are horizontally and circularly arrayed in the annular extension part of the stator (16), and the plunger holes penetrate through the side wall of the stator (16); a plunger (14) matched with the inner wall is arranged in the plunger hole, and the length of the plunger (14) is smaller than that of the plunger hole; a ball plug (12) is arranged at the end part of the plunger (14) between the plunger (14) and the rotor, an annular groove is arranged at the position of the rotor corresponding to the height of the ball plug (12), the inner wall of the groove is matched with the curved surface of the ball plug (12), and the free end of the ball plug (12) extends into the groove and moves close to the inner wall of the groove under the action of an elastic device; a through hole is vertically formed in a plunger hole in the other side of the plunger (14), an upper end cover (6) and a lower end cover (10) are respectively arranged on the upper surface and the lower surface of an extending part corresponding to the upper through hole and the lower through hole, a water inlet cavity and a water outlet cavity are respectively arranged at the joint ends of the upper end cover (6) and the lower end cover (10) and the through hole, the water inlet cavity and the water outlet cavity are respectively formed by an upper cavity and a lower cavity which are communicated, the diameter of the upper cavity is smaller than that of the lower cavity, an upper ball plug (7) and a lower ball plug (15) which are larger than the diameter of the upper cavity are respectively arranged in the lower cavities of the upper end cover (6) and the lower end cover (10), and a spring is arranged between the upper ball plug (; when the rotor shaft (2) rotates, the rotor shaft (2) is elliptical, so when the plunger (14) compresses liquid in a plunger hole, a lower ball plug (15) corresponding to a water outlet cavity of the lower end cover (10) contracts a spring under the action of pressure, water flows out through a gap between the lower ball plug (15) and a lower cavity, and an upper ball plug (7) is tightly matched with an upper cavity of the water inlet cavity; when the plunger (14) expands the plunger hole, the upper ball plug (7) moves downwards under the action of pressure, outside water flows into the plunger hole through a gap between the upper ball plug (7) and the lower cavity of the water inlet cavity, and the lower ball plug (15) is tightly matched with the upper cavity of the water outlet cavity under the action of pressure, so that water is pumped circularly.
2. The novel outer curve plunger pump of claim 1, wherein: upper end cover (6) upper end is provided with feed liquor chamber lid (5) that matches with it, feed liquor chamber lid (5) and rotor shaft (2) threaded connection, the position that the last cavity of feed liquor chamber lid (5) and upper end cover (6) corresponds is provided with the annular feed liquor chamber that communicates with it, feed liquor chamber lid (5) top is provided with inlet (18) that communicate with it.
3. The novel outer curve plunger pump of claim 1, wherein: the end cover (1) is fixedly connected with the stator (16) through bolts (4).
4. The novel outer curve plunger pump of claim 1, wherein: and a sealing rubber ring (3) for sealing is arranged on the contact surface of the rotor shaft (2) and the end cover (1).
5. The novel outer curve plunger pump of claim 1, wherein: the plunger hole is a through hole, and a plunger cover (9) tightly matched with the through hole is arranged at the through hole at the outer side of the plunger hole.
6. The novel outer curve plunger pump of claim 1, wherein: the bottom of the lower end cover (10) is provided with a liquid outlet cavity cover (11) matched with the lower end cover, and an outlet pipe (17) is arranged at the position of the liquid outlet cavity cover (11) corresponding to the lower cavity of the lower end cover (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920576455.6U CN209959409U (en) | 2019-04-25 | 2019-04-25 | Novel outer curve plunger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920576455.6U CN209959409U (en) | 2019-04-25 | 2019-04-25 | Novel outer curve plunger pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209959409U true CN209959409U (en) | 2020-01-17 |
Family
ID=69244074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920576455.6U Expired - Fee Related CN209959409U (en) | 2019-04-25 | 2019-04-25 | Novel outer curve plunger pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209959409U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110017255A (en) * | 2019-04-25 | 2019-07-16 | 南昌大学 | A kind of novel external curve plunger pump |
| CN111779669A (en) * | 2020-08-04 | 2020-10-16 | 赣州市闻誉科技有限公司 | Self-suction type water suction pump for low-lying |
-
2019
- 2019-04-25 CN CN201920576455.6U patent/CN209959409U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110017255A (en) * | 2019-04-25 | 2019-07-16 | 南昌大学 | A kind of novel external curve plunger pump |
| CN110017255B (en) * | 2019-04-25 | 2024-05-03 | 南昌大学 | Outer curve plunger pump |
| CN111779669A (en) * | 2020-08-04 | 2020-10-16 | 赣州市闻誉科技有限公司 | Self-suction type water suction pump for low-lying |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200117 Termination date: 20200425 |