CN112032043A - Displacement pump - Google Patents
Displacement pump Download PDFInfo
- Publication number
- CN112032043A CN112032043A CN202010888577.6A CN202010888577A CN112032043A CN 112032043 A CN112032043 A CN 112032043A CN 202010888577 A CN202010888577 A CN 202010888577A CN 112032043 A CN112032043 A CN 112032043A
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- China
- Prior art keywords
- oil
- scraper
- wall
- filling port
- connecting column
- 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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- 238000006073 displacement reaction Methods 0.000 title claims abstract description 42
- 239000003921 oil Substances 0.000 claims abstract description 239
- 239000010687 lubricating oil Substances 0.000 claims abstract description 11
- 239000004519 grease Substances 0.000 claims description 26
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 239000007769 metal material Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims 1
- 238000003466 welding Methods 0.000 claims 1
- 238000013459 approach Methods 0.000 abstract description 10
- 230000007246 mechanism Effects 0.000 abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 16
- 238000004804 winding Methods 0.000 description 13
- 238000007790 scraping Methods 0.000 description 10
- 230000009471 action Effects 0.000 description 8
- 239000007788 liquid Substances 0.000 description 6
- 239000003638 chemical reducing agent Substances 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 5
- 239000000428 dust Substances 0.000 description 5
- 230000002035 prolonged effect Effects 0.000 description 5
- 230000001050 lubricating effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000011160 research Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0088—Lubrication
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
- B08B1/16—Rigid blades, e.g. scrapers; Flexible blades, e.g. wipers
- B08B1/165—Scrapers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/30—Cleaning by methods involving the use of tools by movement of cleaning members over a surface
- B08B1/32—Cleaning by methods involving the use of tools by movement of cleaning members over a surface using rotary cleaning members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C13/00—Adaptations of machines or pumps for special use, e.g. for extremely high pressures
- F04C13/005—Removing contaminants, deposits or scale from the pump; Cleaning
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
The invention relates to the technical field of displacement pumps, in particular to a displacement pump, which comprises: a positive displacement pump body; the oil filling port is arranged on the displacement pump body and used for adding lubricating oil; the oil cover is in threaded fit with the oil filling port, a tensioning groove is formed in the inner bottom wall of the oil cover along the radial direction of the oil cover, a sliding rod is installed inside the tensioning groove along the length direction of the tensioning groove, and a connecting column is in sliding fit with the sliding rod; the scraper component is arranged on one side, close to the inner wall of the mouth, of the connecting column, the scraper component comprises a scraper and a guide plate, the guide plate is arranged on the connecting column, the collecting box is arranged at the lower end of the connecting column, and the collecting box is positioned below the scraper component; according to the invention, the tensioning mechanism in the tensioning groove can always press the connecting column through the elastic force of the spring part, so that the connecting column approaches to the inner wall of the oil filling port, the scraper can always abut against the inner wall of the oil filling port, and oil dirt on the inner wall of the oil filling port can be conveniently removed.
Description
Technical Field
The invention relates to the technical field of displacement pumps, in particular to a displacement pump.
Background
The displacement pump is a pump which works by volume change, and is generally divided into a rotor pump and a reciprocating pump, wherein the rotor pump is composed of a stationary pump housing and a rotating rotor, and has no suction valve and discharge valve, energy is directly applied to the liquid in the form of static pressure by one side of the rotor in the pump housing, which is in contact with the liquid, and the liquid is discharged by the extrusion action of the rotating rotor, and a space is left at the other side to form low pressure, so that the liquid is continuously sucked. The rotor pump has high pressure head, small flow rate and homogeneous liquid discharge, and is suitable for conveying liquid with high viscosity, high lubricating performance and no solid particle. Types are gear pumps, screw pumps, sliding vane pumps, flexible vane pumps, roots pumps, rotary piston pumps, etc., of which gear pumps and screw pumps are the most common rotodynamic pumps.
After the displacement pump is used for a period of time, the displacement pump needs to be periodically maintained for oil dripping, however, dust is easily adhered to an oil filling port of the displacement pump, and the dust is accumulated for a long time, so that the rotation of the shaft body is easily influenced, and the service life of the device is influenced;
therefore, the invention provides a displacement pump.
Disclosure of Invention
The invention aims to provide a displacement pump, an oil cover is rotated, a scraper can also synchronously rotate along with the oil cover, the scraper can synchronously scrape oil dirt on the inner wall of an oil filling port while rotating, the scraper can synchronously ascend along with the oil cover, the scraper can sequentially scrape the oil dirt on the inner wall of the oil filling port from bottom to top, a first flow deflector and a second flow deflector are arranged on the side surface of the scraper, the first flow deflector and the second flow deflector are obliquely inclined downwards, the first flow deflector and the second flow deflector extend downwards into a flow deflector, the flow deflector is of an arc structure, namely a flow guide groove is formed in the middle of the flow deflector, when the scraper scrapes the oil dirt, the oil dirt can flow into the flow deflector along the first flow deflector and the second flow deflector, the collected oil dirt flows into a collecting box along the flow guide groove, the collecting box is positioned right below the flow deflector, and the fallen oil dirt is convenient to collect, may be implemented to solve the problems set forth in the background art described above.
In order to achieve the purpose, the invention provides the following technical scheme:
a positive displacement pump comprising:
a positive displacement pump body;
the oil filling port is arranged on the displacement pump body and used for adding lubricating oil;
the oil cover is in threaded fit with the oil filling port, a tensioning groove is formed in the inner bottom wall of the oil cover along the radial direction of the oil cover, a sliding rod is installed in the tensioning groove along the length direction of the tensioning groove, a connecting column is in sliding fit with the sliding rod, a spring part is further sleeved on the sliding rod, and the spring part is located between the connecting column and the center of the oil cover; when the oil filling device is used, the tensioning mechanism in the tensioning groove can always press the connecting column through the elastic force of the spring part, so that the connecting column approaches to the inner wall of the oil filling opening;
the scraper component is arranged on one side, close to the inner wall of the mouth, of the connecting column, the scraper component comprises a scraper and a guide plate, the guide plate is arranged on the connecting column, the scraper is fixed on one side, away from the connecting column, of the guide plate, first guide plates are arranged on the outer wall of the scraper at equal intervals from top to bottom, a second guide plate is arranged at the lowest end of the scraper, an oil hole is formed in one side, close to the scraper, of the guide plate, and the guide plate is of an arc-shaped structure; when the scraper is used, the tensioning mechanism positioned in the tensioning groove can always support and press the connecting column through the elastic force action of the spring part, so that the connecting column is close to the inner wall of the oil filling port, at the moment, the scraper component can also synchronously be close to the inner wall of the oil filling port and support on the inner wall of the oil filling port, when lubricating oil needs to be injected from the oil filling port, the oil cover needs to be opened at the moment, when the oil cover is opened, the oil cover is rotated, because the oil cover is in threaded fit with the oil filling port, the oil cover rotates along with the external thread on the outer wall of the oil filling port and gradually moves upwards, and similarly, the scraper can also synchronously rotate along with the oil cover, and the scraper can synchronously scrape the grease on the inner wall of the oil filling port while rotating, meanwhile, the scraper can also synchronously ascend along with the oil cover, so that the grease on the inner wall of the oil filling port can be scraped, after the oil cover is opened, the scraper can also synchronously scrape and clean oil dirt on the inner wall of the oil filling port without extra cleaning, so that the dust on the inner wall of the oil filling port cannot be brought into a lubricating part when lubricating oil is injected conveniently, the service life of the displacement pump is prolonged, and the structure is worthy of explaining that the displacement pump is provided with a plurality of oil filling ports, and the structure can be applied to the plurality of oil filling ports of the displacement pump, so that the service life of the displacement pump is prolonged integrally; and
the collecting box is arranged at the lower end of the connecting column and is positioned below the scraper component, the collecting box is used for collecting oil dirt on the inner wall of the oil filling port scraped by the scraper component, when the scraper component is contacted with the inner wall of the oil filling port, the collecting box is not contacted with the inner wall of the oil filling port all the time, when the oil cover is opened, the scraper and the collecting box move together, and the scraper can only be contacted with the inner wall of the oil filling port but not contacted with the inner wall of the oil filling port, therefore, the collecting box and one side of the scraper close to the inner wall of the oil filling port are not on a vertical line, the position of the collecting box needs to be slightly behind, the oil cover is rotated, the scraper can synchronously rotate along with the oil cover, the scraper can synchronously scrape the oil dirt on the inner wall of the oil filling port while rotating, and can synchronously ascend along with the oil cover, so that the scraper can sequentially scrape the oil dirt on the inner wall of the, and the side of scraper is provided with first water conservancy diversion piece and second water conservancy diversion piece, and the equal downward sloping setting of first water conservancy diversion piece and second water conservancy diversion piece, first water conservancy diversion piece and second water conservancy diversion piece all downwardly extending to in the guide plate, and the guide plate is the arc structure, the middle part of guide plate forms the guiding gutter promptly, when the scraper is striking off the grease, the grease can flow to the guide plate along first water conservancy diversion piece and second water conservancy diversion piece in, the grease of gathering flows to the collection box along the guiding gutter again, the collection box is located the guide plate under, conveniently collect the grease that drops.
Preferably, the displacement pump body is provided with a driving motor, the output end of the driving motor is provided with a speed reducer, the output shaft of the speed reducer is provided with a coupler, the coupler is provided with oil filling ports, the displacement pump body is arranged on the mounting seat, the side face of the mounting seat is welded with a mounting plate, and the mounting plate is matched with a mounting bolt.
Preferably, the number of the tensioning grooves is one to six, and the tensioning grooves are arranged on the inner bottom wall of the oil cover in an annular array mode, so that the scraping effect can be improved.
Preferably, the inner top wall of the tensioning groove is provided with a guide groove along the length direction of the tensioning groove, the top of the connecting column is movably provided with guide balls, the upper ends of the guide balls are in sliding fit in the guide groove, the connecting column can slide along the tensioning groove conveniently, and the guide effect is achieved.
Preferably, the permanent magnet is embedded in the upper part of the oil cover, the upper part or the whole of the connecting column is made of metal materials which can be adsorbed by the permanent magnet, and researches show that the difficulty in cleaning the oil dirt on the inner wall of the oil filling port from bottom to top is higher and higher, and the reason is that the oil dirt on the upper part of the oil filling port is drier and more difficult to clean, so that the permanent magnet is positioned above the oil filling port when the oil cover is screwed on the upper part by utilizing the principle of magnet adsorption, the oil filling port cannot generate resistance to the permanent magnet, the permanent magnet can adsorb the connecting column to enable the connecting column to move towards the direction of the permanent magnet, and the scraper is more tightly connected with the inner wall of the oil filling port, thereby ensuring that the oil dirt on the upper part of the oil filling port can be removed, and the problem that the oil dirt on the upper part of the oil filling port can be difficult, and the action time of the permanent magnet and the screwing state of the oil cover have the matching action, the structure is ingenious, and the linkage is strong.
Preferably, a winding post is fixed at the top of the oil cover, a first line hole is formed in one end of the tensioning groove, a second line hole is communicated with the first line hole, a pull rope is fixed at the upper portion of the side face of the connecting post, a pull ring is fixed at the other end of the pull rope after the other end of the pull rope sequentially penetrates through the first line hole and the second line hole, and the second line hole is located on one side of the winding post.
Preferably, the lower extreme of spliced pole is provided with the mounting groove, the top of collecting the box is fixed with the inserted bar, the upper end of inserted bar is pegged graft in the mounting groove, the side screw-thread fit of spliced pole has locking bolt, locking bolt's one end extends to in the mounting groove and supports on the outer wall of inserted bar.
To sum up, when in use, the tensioning mechanism in the tensioning groove can always press the connecting column through the elastic force of the spring part, so that the connecting column approaches to the inner wall of the oil filling port, at the moment, the scraper component also synchronously approaches to the inner wall of the oil filling port and abuts against the inner wall of the oil filling port, when lubricating oil needs to be injected from the oil filling port, the oil cover needs to be opened, when the oil cover is opened, the oil cover is rotated, because the oil cover is in threaded fit with the oil filling port, the oil cover rotates along the external thread on the outer wall of the oil filling port and gradually moves upwards, similarly, the scraper also synchronously rotates along with the oil cover, the scraper can synchronously scrape the oil dirt on the inner wall of the oil filling port while rotating, meanwhile, the scraper can also synchronously ascend along with the oil cover, so that the scraper can sequentially scrape the oil dirt on the inner wall of the oil filling port from bottom to top, and gradually scrape, so that, when the oil cover is rotated, the scraper can also synchronously rotate along with the oil cover, the scraper can synchronously scrape the oil dirt on the inner wall of the oil filling port while rotating, and can also synchronously rise along with the oil cover, so that the scraper can sequentially scrape the oil dirt on the inner wall of the oil filling port from bottom to top, a first flow deflector and a second flow deflector are arranged on the side surface of the scraper, the first flow deflector and the second flow deflector are both arranged in a downward inclined manner, the first flow deflector and the second flow deflector both extend downwards into the flow guide plate, the flow guide plate is of an arc structure, namely, a flow guide groove is formed in the middle of the flow guide plate, when the scraper scrapes the oil dirt, the oil dirt can flow into the flow guide plate along the first flow deflector and the second flow deflector, the collected oil dirt flows into a collecting box along the flow guide groove, the collecting box is positioned under the flow guide plate, the fallen oil dirt can be conveniently collected, and after the oil cover is opened, the scraper can synchronously scrape the oil dirt on the inner, the oil cap can be pulled to wind the pull ring on the winding post, the connecting post can be pulled inwards by the pull ring at the moment, so that the scraper is positioned in the oil filling port, the pull ring is sleeved on the winding post, the pull ring is prevented from loosening, and the oil cap can be easily installed on the oil filling port.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the tensioning mechanism in the tensioning groove can always press the connecting column through the elastic force of the spring part, so that the connecting column approaches to the inner wall of the oil filling port, the scraper can always abut against the inner wall of the oil filling port, and oil dirt on the inner wall of the oil filling port can be conveniently removed.
2. When the oil cover is screwed to the upper part, the permanent magnet is positioned above the oil filling port, so that the oil filling port cannot generate resistance to the permanent magnet, the permanent magnet can adsorb the connecting column, the connecting column moves towards the direction of the permanent magnet, and the scraper is more tightly connected with the inner wall of the oil filling port, so that oil dirt on the upper part in the oil filling port can be removed.
3. According to the invention, the pull ring is pulled to wind the pull rope on the winding post, at the moment, the pull rope can pull the connecting post inwards, so that the scraper is positioned in the oil filling port, and then the pull ring is sleeved on the winding post to prevent the pull rope from loosening, so that the oil cover can be easily installed on the oil filling port.
4. When the scraper scrapes oil dirt, the oil dirt flows into the guide plate along the first guide plate and the second guide plate, the collected oil dirt flows into the collecting box along the guide groove, and the collecting box is positioned right below the guide plate, so that the fallen oil dirt is conveniently collected.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of a portion A of FIG. 1;
FIG. 3 is a partial enlarged view of portion B of FIG. 2;
FIG. 4 is an enlarged view of a portion C of FIG. 2;
FIG. 5 is a schematic view of the cord of FIG. 2 wound around the spool;
FIG. 6 is a side view of the doctor assembly of the present invention;
fig. 7 is a schematic structural view of a baffle of the present invention.
In the figure: 1. a positive displacement pump body; 101. a drive motor; 102. a speed reducer; 103. a coupling; 104. a mounting seat; 105. mounting a plate; 2. an oil filling port; 3. an oil cover; 301. a tension groove; 302. a slide bar; 303. a spring member; 304. a guide groove; 305. a guide ball; 306. a first wire hole; 307. a second wire hole; 4. connecting columns; 401. mounting grooves; 5. a scraper assembly; 501. a scraper; 502. a first guide vane; 503. a baffle; 5031. an oil hole; 504. a second guide vane; 6. a collection box; 601. inserting a rod; 602. locking the bolt; 7. a permanent magnet; 8. pulling a rope; 9. a pull ring; 10. and (4) winding the wire column.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 7, the present invention provides a technical solution:
in embodiments of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The terms "plurality," "plurality," and "a number" refer to two or more, unless expressly defined otherwise.
As shown in fig. 1 to 7, a positive displacement pump includes:
a positive displacement pump body 1;
the oil filling port 2 is arranged on the volumetric pump body 1 and is used for adding lubricating oil;
the oil cover 3 is in threaded fit with the oil filling port 2, a tensioning groove 301 is formed in the inner bottom wall of the oil cover 3 along the radial direction of the oil cover, a sliding rod 302 is installed in the tensioning groove 301 along the length direction of the tensioning groove 301, a connecting column 4 is in sliding fit with the sliding rod 302, a spring piece 303 is further sleeved on the sliding rod 302, and the spring piece 303 is located between the connecting column 4 and the center of the oil cover 3; when the oil filling device is used, the tensioning mechanism in the tensioning groove 301 is under the action of the elastic force of the spring piece 303, and the elastic force always presses the connecting column 4 to enable the connecting column 4 to approach the inner wall of the oil filling opening 2;
the scraper component 5 is installed on one side, close to the inner wall of the mouth, of the connecting column 4, the scraper component 5 comprises a scraper 501 and a guide plate 503, the guide plate 503 is installed on the connecting column 4, the scraper 501 is fixed on one side, far away from the connecting column 4, of the guide plate 503, first guide plates 502 are arranged on the outer wall of the scraper 501 at equal intervals from top to bottom, a second guide plate 504 is arranged at the lowest end of the scraper 501, an oil hole 5031 is arranged on one side, close to the scraper 501, of the guide plate 503, and the guide plate 503 is of an arc-shaped structure; when the oil-lubricating device is used, the tensioning mechanism in the tensioning groove 301 is under the action of the elastic force of the spring part 303, the elastic force can always support the connecting column 4 to enable the connecting column 4 to approach the inner wall of the oil filling port 2, at the moment, the scraper component 5 can also approach the inner wall of the oil filling port 2 synchronously and support the inner wall of the oil filling port 2, when lubricating oil needs to be filled from the oil filling port 2, the oil cover 3 needs to be opened at the moment, when the oil cover 3 is opened, the oil cover 3 is rotated, because the oil cover 3 is in threaded fit with the oil filling port 2, the oil cover 3 rotates along with the external thread on the outer wall of the oil filling port 2 and gradually moves upwards, similarly, the scraper 501 can also rotate synchronously along with the oil cover 3, the oil dirt on the inner wall of the oil filling port 2 can be synchronously scraped by the scraper 501 while rotating, meanwhile, the scraper 501 can also synchronously ascend along with the oil cover 3, so that the, the scraping is gradual scraping, so that scraping omission is avoided, after the oil cover 3 is opened, the scraper 501 can synchronously scrape oil dirt on the inner wall of the oil filling port 2 completely without extra cleaning, so that dust on the inner wall of the oil filling port 2 cannot be brought into a lubricating part when lubricating oil is conveniently injected, the service life of the volumetric pump is prolonged, and it is worth explaining that the volumetric pump is provided with a plurality of oil filling ports 2, the structure of the invention can be applied to the plurality of oil filling ports 2 of the volumetric pump, so that the service life of the volumetric pump is prolonged integrally;
and a collecting box 6, the collecting box 6 is installed at the lower end of the connecting column 4, the collecting box 6 is located below the scraper component 5, the collecting box 6 is used for collecting the grease dirt on the inner wall of the grease filling port 2 scraped by the scraper component 5, when the scraper component 5 contacts with the inner wall of the grease filling port 2, the collecting box 6 is not contacted with the inner wall of the grease filling port 2 all the time, when the grease cover 3 is opened, the scraper 501 and the collecting box 6 move together, and because only the scraper 501 can be contacted with the inner wall of the grease filling port 2, the collecting box 6 can not be contacted with the inner wall of the grease filling port 2, therefore, the collecting box 6 and one side of the scraper 501 close to the inner wall of the grease filling port 2 are not on a vertical line, the position of the collecting box 6 needs to be slightly behind, the grease cover 3 is rotated, the scraper 501 can synchronously rotate along with the grease cover 3, and the scraper 501 can synchronously scrape the grease dirt on the inner wall of the grease filling port 2 while rotating, like this scraper 501 just can be from supreme scraping off the grease on oiling mouth 2 inner wall in proper order down, and the side of scraper 501 is provided with first water conservancy diversion piece 502 and second water conservancy diversion piece 504, and first water conservancy diversion piece 502 and the equal downward sloping setting of second water conservancy diversion piece 504, first water conservancy diversion piece 502 and second water conservancy diversion piece 504 all extend to in the guide plate 503 downwards, and guide plate 503 is the arc structure, the guiding gutter is formed at the middle part of guide plate 503 promptly, when scraper 501 is scraping the grease, the grease can flow to the guide plate 503 along first water conservancy diversion piece 502 and second water conservancy diversion piece 504, the grease of gathering flows to collection box 6 along the guiding gutter again, collection box 6 is located the guide plate 503 under, conveniently collect the grease that drops.
In a specific embodiment of the present invention, a driving motor 101 is disposed on the displacement pump body 1, a speed reducer 102 is mounted at an output end of the driving motor 101, a coupling 103 is mounted on an output shaft of the speed reducer 102, an oil filling port 2 is disposed on the coupling 103, the displacement pump body 1 is mounted on a mounting seat 104, a mounting plate 105 is welded to a side surface of the mounting seat 104, and a mounting bolt is fitted on the mounting plate 105, it should be noted that the displacement pump has a plurality of oil filling ports 2, and the structure of the present invention can be applied to the plurality of oil filling ports 2 of the displacement pump, so as to improve the service life of the displacement pump as a whole.
In an embodiment of the present invention, the number of the tension grooves 301 is one to six, and the tension grooves 301 are arranged in an annular array on the inner bottom wall of the oil cover 3, so that the scraping effect can be improved.
In a specific embodiment of the present invention, a guide groove 304 is formed on an inner top wall of the tension groove 301 along a length direction of the tension groove 301, a guide ball 305 is movably disposed on a top of the connection column 4, and an upper end of the guide ball 305 is slidably fitted in the guide groove 304, so that the connection column 4 can slide along the tension groove 301, and the guide function is achieved.
In a specific embodiment of the invention, a permanent magnet 7 is embedded in the upper part of the oil cover 3, the upper part or the whole of the connecting column 4 is made of a metal material which can be adsorbed by the permanent magnet 7, and researches show that the difficulty in cleaning the oil dirt on the inner wall of the oil filling port 2 from bottom to top is higher and higher, because the oil dirt on the upper part of the oil filling port 2 is more and more difficult to clean as the oil dirt on the upper part of the oil filling port 2 is drier and drier, therefore, the invention utilizes the principle of magnet adsorption, when the oil cover 3 is screwed to the upper part, the permanent magnet 7 is positioned above the oil filling port 2, so that the oil filling port 2 does not generate resistance on the permanent magnet 7, the permanent magnet 7 adsorbs the connecting column 4 to move towards the permanent magnet 7, so that the scraper 501 is more tightly connected with the inner wall of the oil filling port 2, thereby ensuring that the oil dirt on the upper part in the oil filling port 2 can be removed, and the problem that the oil dirt on the upper part of, and the action time of the permanent magnet 7 and the screwing state of the oil cover 3 have matching action, the structure is ingenious, and the linkage is strong.
In a specific embodiment of the present invention, a winding post 10 is fixed on the top of the oil cover 3, a first line hole 306 is arranged at one end of the tensioning groove 301, a second line hole 307 is communicated with the first line hole 306, a pull rope 8 is fixed on the upper portion of the side surface of the connecting post 4, a pull ring 9 is fixed on the other end of the pull rope 8 after sequentially penetrating through the first line hole 306 and the second line hole 307, and the second line hole 307 is located on one side of the winding post 10, when the oil cover 3 needs to be screwed back to the oil filling port 2 in use, since the scraper 501 is in an open state, it is difficult to take the scraper 501 in the oil filling port 2, therefore, the present invention can pull the pull ring 9 to wind the pull rope 8 on the winding post 10, at this time, the pull rope 8 pulls the connecting post 4 inwards, so that the scraper 501 is located in the oil filling port 2, and then the pull ring 9 is sleeved on the winding post 10 to avoid the, this allows the oil cover 3 to be easily mounted on the oil filling port 2 as shown in fig. 5.
In a specific embodiment of the present invention, the lower end of the connecting column 4 is provided with a mounting groove 401, the top of the collecting box 6 is fixed with an insert rod 601, the upper end of the insert rod 601 is inserted into the mounting groove 401, the side surface of the connecting column 4 is in threaded fit with a locking bolt 602, and one end of the locking bolt 602 extends into the mounting groove 401 and abuts against the outer wall of the insert rod 601.
To sum up, when in use, the tensioning mechanism in the tensioning groove 301 presses the connecting column 4 all the time through the elastic force of the spring element 303, so that the connecting column 4 approaches the inner wall of the oil filling port 2, and the scraper assembly 5 also approaches the inner wall of the oil filling port 2 and abuts against the inner wall of the oil filling port 2 synchronously, when lubricating oil needs to be filled from the oil filling port 2, the oil cover 3 needs to be opened, when the oil cover 3 is opened, the oil cover 3 is rotated, because the oil cover 3 is in threaded fit with the oil filling port 2, the oil cover 3 rotates along the external thread on the outer wall of the oil filling port 2 and gradually moves upwards, and similarly, the scraper 501 also rotates synchronously with the oil cover 3, and the scraper 501 scrapes the grease on the inner wall of the oil filling port 2 synchronously while rotating, and simultaneously, the scraper 501 also ascends synchronously along with the oil cover 3, so that the scraper 501 can scrape the grease on the inner wall of the oil filling port 2 from bottom to top, and the scraping is gradually scraping, so that no scraping omission is caused, the oil cover 3 is rotated, the scraper 501 can synchronously rotate along with the oil cover 3, the scraper 501 can synchronously scrape the oil dirt on the inner wall of the oil filling port 2 while rotating, and the scraper 501 can synchronously ascend along with the oil cover 3, so that the scraper 501 can sequentially scrape the oil dirt on the inner wall of the oil filling port 2 from bottom to top, the side surface of the scraper 501 is provided with a first flow deflector 502 and a second flow deflector 504, the first flow deflector 502 and the second flow deflector 504 are both inclined downwards, the first flow deflector 502 and the second flow deflector 504 both extend downwards to the flow deflector 503, the flow deflector 503 is of an arc structure, namely, the middle part of the flow deflector 503 forms a flow guide groove, when the scraper 501 scrapes the oil dirt, the oil dirt flows into the flow deflector 503 along the first flow deflector 502 and the second flow deflector 504, the gathered oil dirt flows into the collection box 6 along the flow guide groove, the collecting box 6 is positioned under the guide plate 503, the dropped oil dirt is convenient to collect, after the oil cover 3 is opened, the scraper 501 can also synchronously scrape the oil dirt on the inner wall of the oil filling port 2 completely, additional cleaning is not needed, and therefore dust on the inner wall of the oil filling port 2 cannot be brought into a lubricating position when lubricating oil is conveniently injected, the service life of the displacement pump is prolonged, when the oil cover 3 needs to be screwed back to the oil filling port 2, the scraper 501 is in an open state and is difficult to take in the scraper 501 into the oil filling port 2, therefore, the pull ring 9 can be pulled, the pull rope 8 is wound on the winding post 10, the connecting post 4 can be pulled inwards by the pull rope 8 at the moment, the scraper 501 is positioned in the oil filling port 2, the pull ring 9 is sleeved on the winding post 10, the pull rope 8 is prevented from being loosened, and the oil cover 3 can be easily installed on the oil filling port 2.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A positive displacement pump, comprising:
a positive displacement pump body (1);
the oil filling port (2) is arranged on the volumetric pump body (1) and is used for adding lubricating oil;
the oil cap (3) is in threaded fit with the oil filling port (2), a tensioning groove (301) is formed in the inner bottom wall of the oil cap (3) along the radial direction of the oil cap, a sliding rod (302) is installed inside the tensioning groove (301) along the length direction of the tensioning groove (301), a connecting column (4) is in sliding fit with the sliding rod (302), a spring part (303) is further sleeved on the sliding rod (302), and the spring part (303) is located between the connecting column (4) and the center of the oil cap (3);
the scraper component (5) is installed on one side, close to the inner wall of the opening, of the connecting column (4), the scraper component (5) comprises a scraper (501) and a guide plate (503), the guide plate (503) is installed on the connecting column (4), the scraper (501) is fixed on one side, far away from the connecting column (4), of the guide plate (503), first guide vanes (502) are arranged on the outer wall of the scraper (501) at equal intervals from top to bottom, a second guide vane (504) is arranged at the lowest end of the scraper (501), an oil hole (5031) is formed in one side, close to the scraper (501), of the guide plate (503), and the guide plate (503) is of an arc-shaped structure; and
collect box (6), collect box (6) and install the lower extreme at spliced pole (4), and collect box (6) and be located the below of scraper subassembly (5), collect box (6) and be used for collecting scraper subassembly (5) and strike off the grease that oiling mouth (2) inner wall, when scraper subassembly (5) and oiling mouth (2) inner wall contact, collect box (6) and do not contact with oiling mouth (2) inner wall all the time.
2. A positive-displacement pump according to claim 1, wherein: be provided with driving motor (101) on positive displacement pump body (1), reduction gear (102) are installed to the output of driving motor (101), install shaft coupling (103) on the output shaft of reduction gear (102), be provided with oiling mouth (2) on shaft coupling (103), install on mount pad (104) positive displacement pump body (1), the side welding of mount pad (104) has mounting panel (105), and the cooperation has construction bolt on mounting panel (105).
3. A positive-displacement pump according to claim 2, wherein: the number of the tensioning grooves (301) is one to six, and the tensioning grooves (301) are arranged on the inner bottom wall of the oil cover (3) in an annular array mode.
4. A positive-displacement pump according to claim 3, wherein: the inner top wall of the tensioning groove (301) is provided with a guide groove (304) along the length direction of the tensioning groove (301), the top of the connecting column (4) is movably provided with a guide ball (305), and the upper end of the guide ball (305) is in sliding fit in the guide groove (304).
5. A positive-displacement pump according to claim 4, wherein: the upper part of the oil cover (3) is embedded with a permanent magnet (7), and the upper part or the whole of the connecting column (4) is made of metal materials which can be adsorbed by the permanent magnet (7).
6. A positive-displacement pump according to claim 5, wherein: the top of oil lid (3) is fixed with wrapping post (10), the one end in tensioning groove (301) is provided with first line hole (306), the intercommunication has second line hole (307) on first line hole (306), the side upper portion of spliced pole (4) is fixed with stay cord (8), the other end of stay cord (8) runs through first line hole (306), second line hole (307) after-fixing has pull ring (9) in proper order, second line hole (307) are located wrapping post (10) one side.
7. A positive-displacement pump according to claim 6, wherein: the lower extreme of spliced pole (4) is provided with mounting groove (401), the top of collecting box (6) is fixed with inserted bar (601), the upper end of inserted bar (601) is pegged graft in mounting groove (401), the side screw-thread fit of spliced pole (4) has locking bolt (602), the one end of locking bolt (602) extends to in mounting groove (401) and supports on the outer wall of inserted bar (601).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010888577.6A CN112032043A (en) | 2020-08-28 | 2020-08-28 | Displacement pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010888577.6A CN112032043A (en) | 2020-08-28 | 2020-08-28 | Displacement pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112032043A true CN112032043A (en) | 2020-12-04 |
Family
ID=73586319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010888577.6A Withdrawn CN112032043A (en) | 2020-08-28 | 2020-08-28 | Displacement pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112032043A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113224914A (en) * | 2021-07-08 | 2021-08-06 | 江苏中科朗恩斯车辆科技有限公司 | Device and method for detecting torque of dimming motor of automobile lamp |
-
2020
- 2020-08-28 CN CN202010888577.6A patent/CN112032043A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113224914A (en) * | 2021-07-08 | 2021-08-06 | 江苏中科朗恩斯车辆科技有限公司 | Device and method for detecting torque of dimming motor of automobile lamp |
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Application publication date: 20201204 |