CN115059609A - High hydraulic gear pump of accurate regulation stability - Google Patents
High hydraulic gear pump of accurate regulation stability Download PDFInfo
- Publication number
- CN115059609A CN115059609A CN202210667274.0A CN202210667274A CN115059609A CN 115059609 A CN115059609 A CN 115059609A CN 202210667274 A CN202210667274 A CN 202210667274A CN 115059609 A CN115059609 A CN 115059609A
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- hydraulic
- oil
- wall
- fixedly connected
- pipe
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- 230000005540 biological transmission Effects 0.000 claims abstract description 39
- 239000007787 solid Substances 0.000 claims abstract description 33
- 238000001914 filtration Methods 0.000 claims abstract description 10
- 230000000903 blocking effect Effects 0.000 claims description 20
- 238000000926 separation method Methods 0.000 claims description 10
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 125000004122 cyclic group Chemical group 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 239000003921 oil Substances 0.000 abstract description 83
- 239000010720 hydraulic oil Substances 0.000 abstract description 36
- 239000012535 impurity Substances 0.000 abstract description 31
- 239000010865 sewage Substances 0.000 description 16
- 230000000694 effects Effects 0.000 description 6
- 238000001514 detection method Methods 0.000 description 5
- 230000002035 prolonged effect Effects 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Images
Classifications
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- 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
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C2/14—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
- F04C2/18—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with similar tooth forms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/15—Filters with filtering elements which move during the filtering operation with rotary plane filtering surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/44—Regenerating the filter material in the filter
- B01D33/46—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element
- B01D33/466—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element scrapers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
- B01D36/02—Combinations of filters of different kinds
-
- 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
- F04C15/0042—Systems for the equilibration of forces acting on the machines or pump
-
- 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
- F04C15/06—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
Abstract
The invention relates to the technical field of hydraulic gear pumps, in particular to a hydraulic gear pump with high precision adjustment stability, which comprises a pump shell, wherein a transmission cavity is formed in the pump shell, one side of the inner wall of the transmission cavity is rotatably connected with a driving gear shaft, the front end of the driving gear shaft penetrates through the transmission cavity and extends to the outside of the pump shell, the lower end of the driving gear shaft is connected with a driven gear shaft which is rotatably connected with the transmission cavity in a meshing manner, and one side end of the pump shell is embedded with a filtering device communicated with the transmission cavity; before hydraulic oil entered the inside in transmission chamber through advancing oil pipe, solid impurity that mix with in the hydraulic oil can be filtered to first filter screen, need not worry that solid impurity falls the surface of driving gear axle or driven gear axle, has reduced the resistance of driving gear axle and driven transmission shaft meshing transmission effectively to reduce the wearing and tearing speed of driving gear axle and driven transmission shaft, in order to prolong hydraulic gear pump's life.
Description
Technical Field
The invention relates to the technical field of hydraulic gear pumps, in particular to a hydraulic gear pump with high precision adjustment stability.
Background
The hydraulic gear pump is a rotary pump which conveys liquid or boosts the liquid by means of the change and movement of the working volume formed between a pump cylinder and a meshing gear, solid impurities are unavoidably existed in a hydraulic system, the solid impurities are mixed in hydraulic oil to damage the internal structure of the hydraulic gear pump, and the hydraulic gear pump is used for torque transmission, the radial force is unbalanced when the driving gear shaft and the driven gear shaft are meshed for transmission, when the solid impurities pass between the driving gear shaft and the driven gear shaft, the friction force between the driving gear shaft and the driven gear shaft is increased, the running stability of the hydraulic gear pump is reduced, and the service life of the hydraulic gear pump is also shortened.
Therefore, a hydraulic gear pump having high precision adjustment stability is proposed to solve the above-described problems.
Disclosure of Invention
The invention realizes the aim through the following technical scheme, and the hydraulic gear pump with high precision adjustment stability comprises a pump shell, wherein a transmission cavity is formed in the pump shell, one side of the inner wall of the transmission cavity is rotatably connected with a driving gear shaft, the front end of the driving gear shaft penetrates through the transmission cavity and extends to the outside of the pump shell, the lower end of the driving gear shaft is connected with a driven gear shaft which is rotatably connected with the transmission cavity in a meshed manner, one side end of the pump shell is embedded and provided with a filtering device communicated with the transmission cavity, and the other side end of the pump shell is embedded and provided with an adjusting device communicated with the transmission cavity;
the filter device comprises an oil inlet pipe which is embedded in one side end of the pump shell and is communicated with the conduction cavity, the inner wall of the oil inlet pipe is rotatably connected with a first filter screen, the side end of the first filter screen, which is close to the pump shell, is fixedly connected with guide vanes which are distributed annularly, one end of the first filter screen, which is far away from the pump shell, is rotatably connected with a guide frame which is fixedly connected with the oil inlet pipe, the inner wall of the guide frame is fixedly connected with a scraper which is contacted with the first filter screen, the lower end of the oil inlet pipe is fixedly connected with a connecting box, the lower end of the oil inlet pipe and the upper end of the connecting box are both provided with a dirt guide port, the upper opening of the dirt guide port on the upper side is communicated with the lower end of the guide frame, two adjacent dirt guide ports are communicated, the inner wall of the connecting box is rotatably connected with an adjusting column, the surface of the adjusting column is provided with a middle rotating port, and the lower openings of the two dirt guide ports on the lower side are both communicated with the middle rotating port, the second filter screen is installed in the inner wall embedding of transfer port, the drain has been seted up to the lower extreme of connecting box, the rear end fixedly connected with of adjusting the post adjusts the handle, the rear end of adjusting the handle runs through to the outside of connecting box.
Preferably, the inner wall of the connecting box and the cross-sectional shape of the adjusting column are both matched circular, the lower openings of the sewage guide port and the openings on the two sides of the transfer port are both parallel to the horizontal plane, and the transfer port is perpendicular to the sewage drain port.
Preferably, the first filter screen is umbrella-shaped, the tip of the first filter screen is arranged at the side end far away from the pump shell, the guide frame and the scraper are both parallel to the first filter screen, and the flow guide blade is a three-dimensional twisted curved surface body.
Preferably, the constant head tank has been seted up to inner wall one side of connecting box, the inner wall of constant head tank rotates and is connected with the locating lever, the rear end of locating lever run through the constant head tank and with adjust post fixed connection, the fixed surface of locating lever is connected with and constant head tank sliding connection's stopper, the cross sectional shape of constant head tank is fan-shaped, the contained angle of two cross-section straight flanges of constant head tank is ninety degrees.
Preferably, fixedly connected with rubber spring between stopper and the constant head tank, rubber spring is in compression state.
Preferably, the upper side is provided with a check valve embedded in the inner wall of the dirt guide port, the blocking direction of the check valve is from top to bottom, and the upper side is provided with a third filter screen arranged above the check valve embedded in the inner wall of the dirt guide port.
Preferably, the adjusting device comprises an oil outlet pipe which is embedded and installed at the other side end of the pump shell and communicated with the conduction cavity, the inner wall of the oil outlet pipe is fixedly connected with a fixed seat which is distributed in an annular shape, the surface of the fixed seat is rotationally connected with a separation blade, the inner wall of the oil outlet pipe is connected with a push pipe in sliding contact with the barrier blades, the inner wall of the push pipe is connected with a fixing ring in sliding, one end of the fixing ring, which is far away from the separation blade, penetrates through the push pipe and is fixedly connected with the oil outlet pipe, the upper end of the oil outlet pipe is fixedly connected with a miniature electric push rod, the surface of the miniature electric push rod is connected with an oil storage cylinder fixedly connected with the oil outlet pipe in a sliding way, the inner wall of the oil storage cylinder is connected with a piston fixedly connected with the miniature electric push rod in a sliding way, one end of the oil storage cylinder, which is far away from the pump shell, is fixedly connected with an oil guide pipe communicated with the oil storage cylinder, and the lower end of the oil guide pipe sequentially penetrates through the oil outlet pipe and the fixing ring and extends to the inside of the push pipe.
Preferably, the push pipe is close to inner wall one side fixedly connected with rubber bag of separation blade, the one end and the solid fixed ring fixed connection of separation blade are kept away from to the rubber bag, lead the inside that oil pipe is close to the one end of separation blade and run through to the rubber bag.
Preferably, the cross section of the blocking blade is fan-shaped, and the cross section of the push pipe close to one end of the pump shell is arc-shaped.
Preferably, adjusting device still includes that singlechip and quantity are two hydraulic sensor, singlechip fixed connection is in the front end of pump case, one side hydraulic sensor fixed connection advances the inner wall of oil pipe, one side hydraulic sensor sets up between first filter screen and conduction chamber, the opposite side hydraulic sensor fixed connection goes out the inner wall of oil pipe, the opposite side hydraulic sensor sets up between separation blade and conduction chamber.
The invention has the beneficial effects that:
1. before hydraulic oil enters the interior of the transmission cavity through the oil inlet pipe, the first filter screen can filter solid impurities mixed in the hydraulic oil, the solid impurities do not need to be worried about to fall onto the surface of the driving gear shaft or the driven gear shaft, the resistance of meshing transmission of the driving gear shaft and the driven transmission shaft is effectively reduced, the abrasion rate of the driving gear shaft and the driven transmission shaft is reduced, and the service life of the hydraulic gear pump is prolonged;
2. when the hydraulic oil passes through the first filter screen, the hydraulic oil can rotate through the flow guide blade, so that solid impurities on the surface of the first filter screen of the scraper plate can be conveniently intercepted by the second filter screen through the guide frame, the sewage guide port and the transfer port, smoothness of the first filter screen is guaranteed, when workers need to clean the solid impurities regularly, the workers only need to adjust the handle to communicate the transfer port on the adjusting column with the sewage discharge port, the hydraulic oil in the transfer port can drive the solid impurities to be discharged along the sewage discharge port, the workers do not need to pause the hydraulic gear pump and then perform cleaning work, working efficiency of the hydraulic gear pump is guaranteed, meanwhile, an electric power source does not need to be arranged for the first filter screen independently, cost for cleaning the first filter screen is reduced, and a good energy-saving effect is achieved;
3. the pressure of the two sides of the joint of the driving gear shaft and the driven gear shaft is calculated by a worker to control the extension of the miniature electric push rod towards the corresponding direction and drive the piston to suck hydraulic oil, so that the rubber bag drives the push pipe to be close to or far away from the pump shell, and the blocking blade is tightly attached to the push pipe under the action of the hydraulic oil impact in the oil outlet pipe, and the oil outlet caliber of the oil outlet pipe is changed accordingly, so that the pressure of the two sides of the joint of the driving gear shaft and the driven gear shaft is kept balanced, the overlarge pressure difference of the two sides of the joint of the driving gear shaft and the driven gear shaft is effectively reduced, the radial force tends to be balanced when the driving gear shaft and the driven gear shaft are meshed and transmitted, the meshing and transmitting stability of the driving gear shaft and the driven gear shaft is improved, the running stability of the hydraulic gear pump is improved, and the service life of the hydraulic gear pump is prolonged;
4. but the hydraulic sensor of both sides real-time detection advances the pressure of oil pipe and goes out hydraulic oil between the oil pipe, and hydraulic sensor will detect data transmission again and give the singlechip, and the detection data of singlechip contrast both sides hydraulic sensor transmission need not staff's manual measurement, calculates and adjusts the pressure of driving gear axle and driven gear shaft junction both sides to reach self-regulating effect.
Drawings
FIG. 1 is a schematic view of the structure of the present invention;
FIG. 2 is an overall vertical cross-sectional schematic view of the present invention;
FIG. 3 is a schematic vertical cross-sectional view of a filtration apparatus of the present invention;
FIG. 4 is an exploded view of the filter assembly of the present invention;
FIG. 5 is a schematic view of a partial structure of a filter device according to the present invention;
FIG. 6 is a schematic horizontal cross-sectional view of a filtration apparatus of the present invention;
FIG. 7 is a partial vertical sectional view of an adjustment device of the present invention;
fig. 8 is a schematic partial exploded view of the regulating device according to the invention.
In the figure: 1. a pump housing; 2. a conductive cavity; 3. a driving gear shaft; 4. a driven gear shaft; 5. a filtration device; 501. an oil inlet pipe; 502. a first filter screen; 503. a guide vane; 504. a guide frame; 505. a squeegee; 506. a connection box; 507. a sewage guide port; 508. an adjustment column; 509. a transfer port; 510. a second filter screen; 511. a sewage draining outlet; 512. positioning a groove; 513. positioning a rod; 514. a limiting block; 515. a rubber spring; 516. a one-way valve; 517. a third filter screen; 518. adjusting the handle; 6. an adjustment device; 601. an oil outlet pipe; 602. a fixed seat; 603. blocking the blades; 604. pushing the tube; 605. a fixing ring; 606. a miniature electric push rod; 607. a reserve tube; 608. a piston; 609. an oil guide pipe; 610. a rubber bladder; 611. a single chip microcomputer; 612. and a hydraulic pressure sensor.
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.
In the specific implementation: as shown in fig. 1-8, a hydraulic gear pump with high precision adjustment stability comprises a pump shell 1, a transmission cavity 2 is formed in the pump shell 1, a driving gear shaft 3 is rotatably connected to one side of the inner wall of the transmission cavity 2, the front end of the driving gear shaft 3 penetrates through the transmission cavity 2 and extends to the outside of the pump shell 1, the lower end of the driving gear shaft 3 is connected with a driven gear shaft 4 rotatably connected with the transmission cavity 2 in a meshed manner, a filtering device 5 communicated with the transmission cavity 2 is embedded and mounted at one side end of the pump shell 1, and an adjusting device 6 communicated with the transmission cavity 2 is embedded and mounted at the other side end of the pump shell 1;
as shown in fig. 3-6, the filtering device 5 includes an oil inlet pipe 501 embedded in one side end of the pump housing 1 and communicated with the conduction cavity 2, a first filter screen 502 is rotatably connected to the inner wall of the oil inlet pipe 501, guide vanes 503 annularly distributed are fixedly connected to the side end of the first filter screen 502 close to the pump housing 1, a guide frame 504 fixedly connected to the oil inlet pipe 501 is rotatably connected to one end of the first filter screen 502 far away from the pump housing 1, the opening of the guide frame 504 faces the direction of the first filter screen 502, a scraper 505 contacting the first filter screen 502 is fixedly connected to the inner wall of the guide frame 504, a connection box 506 is fixedly connected to the lower end of the oil inlet pipe 501 and the upper end of the connection box 506, dirt guide openings 507 are respectively formed at the lower end of the oil inlet pipe 501 and the upper end of the connection box 506, the upper opening of the dirt guide opening 507 at one side above is communicated with the lower end of the guide frame 504, two adjacent dirt guide openings 507 are communicated, an adjusting column 508 is rotatably connected to the inner wall of the connection box 506, the surface of the adjusting column 508 is provided with a transit opening 509, the lower openings of the two lower sewage guide openings 507 are communicated with the transit opening 509, the inner wall of the transit opening 509 is embedded with a second filter screen 510, the lower end of the connecting box 506 is provided with a sewage discharge opening 511, the rear end of the adjusting column 508 is fixedly connected with an adjusting handle 518, the rear end of the adjusting handle 518 penetrates to the outside of the connecting box 506, when hydraulic oil enters the interior of the transmission cavity 2 through the oil inlet pipe 501, the first filter screen 502 can filter solid impurities mixed in the hydraulic oil, the solid impurities do not need to be worried about to fall onto the surface of the driving gear shaft 3 or the driven gear shaft 4, the resistance transmitted by meshing of the driving gear shaft 3 and the driven gear shaft 4 is effectively reduced, the wear rate of the driving gear shaft 3 and the driven gear shaft 4 is reduced, the service life of the hydraulic gear pump is prolonged, the cross-section shapes of the inner wall of the connecting box 506 and the adjusting column 508 are both matched circular, the lower openings of the two lower dirt guide openings 507 and the openings at two sides of the transfer port 509 are both parallel to the horizontal plane, the transfer port 509 is perpendicular to the dirt discharge port 511, when hydraulic oil with solid impurities enters the interior of the transfer port 509 along one side dirt guide opening 507, the hydraulic oil passing through the second filter screen 510 can flow back to the oil inlet pipe 501 along the transfer port 509 and the other side dirt guide opening 507, when a worker communicates the transfer port 509 with the dirt discharge port 511, the adjusting columns 508 are just attached to the two lower dirt guide openings 507, the adjusting columns 508 seal the two dirt guide openings 507 to reduce leakage of the hydraulic oil through the two lower dirt guide openings 507, so that a good sealing effect is achieved, the first filter screen 502 is umbrella-shaped, the tip of the first filter screen 502 is arranged at the side end far away from the pump shell 1, the guide frame 504 and the scraper 505 are both parallel to the first filter screen 502, the flow guide vanes 503 are three-dimensional twisted curved bodies, the umbrella-shaped first filter screen 502 is adopted, on the premise of not influencing the normal filtration of solid impurities by the first filter screen 502, the solid impurities can be guided to the side edge, so that the scraper 505 can intensively scrape the solid impurities, and compared with the traditional planar design, the shape can bear larger impact to reduce the probability that the first filter screen 502 is damaged by washing, one side of the inner wall of the connecting box 506 is provided with a positioning groove 512, the inner wall of the positioning groove 512 is rotatably connected with a positioning rod 513, the rear end of the positioning rod 513 penetrates through the positioning groove 512 and is fixedly connected with the adjusting column 508, the surface of the positioning rod 513 is fixedly connected with a limiting block 514 which is slidably connected with the positioning groove 512, the cross section of the positioning groove 512 is in a fan shape, the included angle of two straight sections of the positioning groove 512 is ninety degrees, the positioning groove 512 can limit the adjusting column 508 to rotate only ninety degrees through the limiting block 514 and the positioning rod 513, and the adjusting column 508 does not need to be excessively rotated, and the probability of dislocation of the transit port 509 and the sewage guide port 507 or the sewage discharge port 511 is caused, the rubber spring 515 is fixedly connected between the limiting block 514 and the positioning groove 512, the rubber spring 515 is in a compressed state, when the worker discharges solid impurities through the sewage discharge port 511, the worker only needs to loosen the adjusting handle 518, at the moment, the rubber spring 515 loses resistance, the rubber spring 515 can rotate the adjusting column 508 through the limiting block 514 and the positioning rod 513, and due to the limitation of the positioning groove 512, when the limiting block 514 is recorded on one side of the inner wall of the positioning groove 512 by the rubber spring 515, the transit port 509 is just communicated with the two sewage guide ports 507 below without manual reset of the worker, and because the rubber spring 515 is in the compressed state at the moment, the rubber spring 515 can also apply a resistance to the adjusting column 508 to reduce the probability of loosening or rotation of the adjusting column 508, thereby achieving the double beneficial effects of self-resetting and positioning, the check valve 516 is embedded in the inner wall of the dirt guide opening 507 at the other side above the oil inlet pipe, the blocking direction of the check valve 516 is from top to bottom, the third filter screen 517 arranged above the check valve 516 is embedded in the inner wall of the dirt guide opening 507 at the other side above the oil inlet pipe, the check valve 516 can limit that hydraulic oil passing through the inside of the transfer opening 509 can only flow back to the oil inlet pipe 501 through the dirt guide opening 507 at the other side above the oil inlet pipe 501, and a user does not need to worry that hydraulic oil inside the oil inlet pipe 501 reversely flows into the transfer opening 509 through the dirt guide opening 507 at the other side above the oil inlet pipe, so that the probability of solid impurities flowing back to the oil inlet pipe 501 is reduced, and a good blocking effect is achieved.
As shown in fig. 1, 2, 7 and 8, the adjusting device 6 includes an oil outlet pipe 601 embedded in the other side end of the pump housing 1 and communicated with the conducting chamber 2, the inner wall of the oil outlet pipe 601 is fixedly connected with a fixing base 602 distributed in a ring shape, the surface of the fixing base 602 is rotatably connected with a blocking vane 603, the inner wall of the oil outlet pipe 601 is slidably connected with a push pipe 604 contacting with the blocking vane 603, the inner wall of the push pipe 604 is slidably connected with a fixing ring 605, one end of the fixing ring 605 far away from the blocking vane 603 penetrates through the push pipe 604 and is fixedly connected with the oil outlet pipe 601, the upper end of the oil outlet pipe 601 is fixedly connected with a micro electric push rod 606, the surface of the micro electric push rod 606 is slidably connected with a reserve cylinder 607 fixedly connected with the oil outlet pipe 601, the inner wall of the reserve cylinder 607 is slidably connected with a piston 608 fixedly connected with the micro electric push rod 606, one end of the reserve cylinder 607 far away from the pump housing 1 is fixedly connected with an oil guide pipe 609 communicated with the reserve cylinder 607, the lower end of the oil conduit 609 sequentially penetrates through the oil outlet pipe 601 and the fixing ring 605 and extends to the inside of the push pipe 604, hydraulic oil is filled in the oil storage cylinder 607, the oil conduit 609 and the rubber bag 610, a worker can calculate the pressure on two sides of the joint of the driving gear shaft 3 and the driven gear shaft 4 according to the rotating speed of the driving gear shaft 3, then the micro electric push rod 606 is controlled to extend towards the corresponding direction according to the calculated difference, the micro electric push rod 606 drives the piston 608 to move towards the corresponding direction, the piston 608 pushes the hydraulic oil in the oil storage cylinder 607 into the rubber bag 610 through the oil conduit 609, or the piston 608 sucks the hydraulic oil in the rubber bag 610 back to the oil storage cylinder 607 through the oil conduit 609, the rubber bag 610 expands or contracts along with the hydraulic oil, the rubber bag 610 drives the push pipe 604 to move towards the corresponding direction, the push pipe 604 is close to or far away from the pump shell 1, the blocking vane 603 is tightly attached to the push pipe 604 under the effect of impact inside the oil outlet pipe 601, at this time, the oil outlet aperture of the oil outlet pipe 601 will be increased or decreased, which can keep the pressure at the two sides of the joint of the driving gear shaft 3 and the driven gear shaft 4 balanced, effectively reduce the pressure difference at the two sides of the joint of the driving gear shaft 3 and the driven gear shaft 4 too large, make the radial force tend to balance when the driving gear shaft 3 and the driven gear shaft 4 are engaged and transmitted, so as to improve the stability of the engagement and transmission of the driving gear shaft 3 and the driven gear shaft 4, and improve the stability of the operation of the hydraulic gear pump, so as to prolong the service life of the hydraulic gear pump, one side of the push pipe 604 close to the inner wall of the blocking vane 603 is fixedly connected with the rubber bladder 610, one end of the rubber bladder 610 far away from the blocking vane 603 is fixedly connected with the fixing ring 605, one end of the oil guide pipe 609 close to the blocking vane 603 penetrates into the rubber bladder 610, and the rubber bladder 610 reduces the mixed hydraulic oil inside and outside the push pipe 604 together, so as to ensure the capacity of hydraulic oil for adjusting the position of the push pipe 604 and reduce the error of the micro electric push rod 606 for adjusting the push pipe 604, the cross section of the blocking blade 603 is fan-shaped, the cross section of the push pipe 604 near one end of the pump case 1 is arc-shaped, the adjusting device 6 further comprises a single chip microcomputer 611 and two hydraulic sensors 612, the single chip microcomputer 611 is fixedly connected with the front end of the pump case 1, the hydraulic sensor 612 on one side is fixedly connected with the inner wall of the oil inlet pipe 501, the hydraulic sensor 612 on one side is arranged between the first filter screen 502 and the conduction cavity 2, the hydraulic sensor 612 on the other side is fixedly connected with the inner wall of the oil outlet pipe 601, the hydraulic sensor 612 on the other side is arranged between the blocking blade 603 and the conduction cavity 2, the output end of the hydraulic sensor 612 is electrically connected with the input end of the single chip microcomputer 611, and the input end of the micro electric push rod 606 is electrically connected with the output end of the single chip microcomputer 611, the hydraulic sensors 612 on the two sides can detect the pressure of hydraulic oil between the oil inlet pipe 501 and the oil outlet pipe 601 in real time, the hydraulic sensors 612 transmit detection data to the single chip microcomputer 611, and the single chip microcomputer 611 compares the detection data transmitted by the hydraulic sensors 612 on the two sides, so that the pressure on the two sides of the joint of the driving gear shaft 3 and the driven gear shaft 4 does not need to be manually measured, calculated and adjusted by workers, and the self-adjusting effect is achieved.
When the hydraulic gear pump is used, before hydraulic oil enters the interior of the transmission cavity 2 through the oil inlet pipe 501, the first filter screen 502 can filter solid impurities mixed in the hydraulic oil, the solid impurities do not need to fall on the surface of the driving gear shaft 3 or the driven gear shaft 4, the resistance of meshing transmission of the driving gear shaft 3 and the driven gear shaft 4 is effectively reduced, the abrasion rate of the driving gear shaft 3 and the driven gear shaft 4 is reduced, the service life of the hydraulic gear pump is prolonged, after the hydraulic oil passes through the first filter screen 502, the hydraulic oil impacts the surface of the guide vane 503, the guide vane 503 rotates due to the impact, the guide vane 503 drives the first filter screen 502 to rotate in the rotating process, the first filter screen 502 drives the filtered solid impurities to rotate, at the moment, the scraper 505 can scrape the solid impurities on the surface of the first filter screen 502 in contact with the scraper, and the first filter screen 502 does not need to be blocked by the solid impurities, therefore, a good self-cleaning effect is achieved, because the opening of the guide frame 504 faces the direction of the first filter screen 502, the guide frame 504 can prevent the normally flowing hydraulic oil from directly impacting the solid impurities scraped by the scraper 505, at this time, the solid impurities scraped by the scraper 505 can be influenced by gravity and guided into the upper side dirt guide opening 507 along the guide frame 504, the solid impurities are guided into the lower side dirt guide opening 507 through the upper side dirt guide opening 507, then the lower side dirt guide opening 507 guides the solid impurities into the middle turning opening 509, the second filter screen 510 blocks the impurities entering the middle turning opening 509 in the middle turning opening 509, when the worker needs to clean the solid impurities regularly, the worker only needs to adjust the handle 518 counterclockwise, the adjusting handle 518 drives the adjusting column 508 to rotate counterclockwise, the adjusting column 508 drives the middle turning opening 509 to rotate counterclockwise, the middle turning opening 509 drives the hydraulic oil and the solid impurities inside to rotate counterclockwise together, meanwhile, the hydraulic gear pump is staggered with the sewage guide ports 507 on two sides below, when the transfer port 509 is communicated with the sewage discharge port 511, hydraulic oil in the transfer port 509 drives solid impurities to be discharged along the sewage discharge port 511, and therefore workers do not need to pause the hydraulic gear pump and then perform cleaning work, and working efficiency of the hydraulic gear pump is guaranteed;
when the driving gear shaft 3 and the driven gear shaft 4 are matched to convey hydraulic oil, the hydraulic sensors 612 on both sides can detect the pressure of the hydraulic oil between the oil inlet pipe 501 and the oil outlet pipe 601 in real time, the hydraulic sensors 612 transmit the detection data to the single chip microcomputer 611, the single chip microcomputer 611 compares the detection data transmitted by the hydraulic sensors 612 on both sides, when the data detected by the hydraulic sensors 612 in the oil inlet pipe 501 minus the data detected by the hydraulic sensors 612 in the oil outlet pipe 601 is larger than the difference data preset in the single chip microcomputer 611, the single chip microcomputer 611 controls to extend the corresponding distance of the micro electric push rod 606 according to the difference value, the micro electric push rod 606 drives the piston 608 to move a corresponding distance in the direction away from the pump housing 1, at the moment, the piston 608 pushes the hydraulic oil in the oil guide pipe 609, the oil guide pipe 609 guides the hydraulic oil into the rubber bladder 610, the rubber bladder 610 expands and pushes the pipe 604 outwards at the moment, the push pipe 604 presses all the obstructing blades 603 at the same time, the obstructing blades 603 rotate towards the middle along the fixed seat 602, at this time, the oil outlet aperture of the oil outlet pipe 601 will be reduced, the oil outlet pressure of the oil outlet pipe 601 will also be increased, the micro-electric push rod 606 will not be driven by the single chip microcomputer 611 until the data detected by the hydraulic sensor 612 inside the oil inlet pipe 501 minus the data detected by the hydraulic sensor 612 inside the oil outlet pipe 601 is smaller than the difference data preset inside the single chip microcomputer 611, when the data detected by the hydraulic sensor 612 inside the oil inlet pipe 501 minus the data detected by the hydraulic sensor 612 inside the oil outlet pipe 601 is smaller than the difference data preset inside the single chip microcomputer 611, the single chip microcomputer 611 controls the micro-electric push rod 606 with the corresponding distance shortened according to the difference, which can keep the pressures at both sides of the joint of the driving gear shaft 3 and the driven gear shaft 4 balanced, effectively reduce the pressure difference at both sides of the joint of the driving gear shaft 3 and the driven gear shaft 4 too large, radial force tends to be balanced when the driving gear shaft 3 and the driven gear shaft 4 are meshed and transmitted, so that the stability of the meshing and transmitting of the driving gear shaft 3 and the driven gear shaft 4 is improved, the running stability of the hydraulic gear pump is improved, and the service life of the hydraulic gear pump is prolonged.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. The utility model provides a high hydraulic gear pump of fine adjustment stability, includes pump case (1), its characterized in that: a transmission cavity (2) is formed in the pump shell (1), one side of the inner wall of the transmission cavity (2) is rotatably connected with a driving gear shaft (3), the front end of the driving gear shaft (3) penetrates through the transmission cavity (2) and extends to the outside of the pump shell (1), the lower end of the driving gear shaft (3) is connected with a driven gear shaft (4) which is rotatably connected with the transmission cavity (2) in a meshed mode, a filtering device (5) communicated with the transmission cavity (2) is embedded and mounted at one side end of the pump shell (1), and an adjusting device (6) communicated with the transmission cavity (2) is embedded and mounted at the other side end of the pump shell (1);
the filtering device (5) comprises an oil inlet pipe (501) which is embedded into one side end of the pump shell (1) and communicated with the conduction cavity (2), the inner wall of the oil inlet pipe (501) is rotatably connected with a first filter screen (502), the side end, close to the pump shell (1), of the first filter screen (502) is fixedly connected with guide vanes (503) which are distributed annularly, one end, far away from the pump shell (1), of the first filter screen (502) is rotatably connected with a guide frame (504) which is fixedly connected with the oil inlet pipe (501), the inner wall of the guide frame (504) is fixedly connected with a scraper (505) which is in contact with the first filter screen (502), the lower end of the oil inlet pipe (501) is fixedly connected with a connecting box (506), the lower end of the oil inlet pipe (501) and the upper end of the connecting box (506) are both provided with a dirt guide port (507), the upper opening of the dirt guide port (507) is communicated with the lower end of the guide frame (504) on one side above, adjacent two lead dirty mouthful (507) and be linked together, the inner wall of connecting box (506) is rotated and is connected with regulation post (508), transfer mouth (509) have been seted up on the surface of regulation post (508), and the below is two the under shed of leading dirty mouthful (507) all communicates with transfer mouth (509), second filter screen (510) are installed in the inner wall embedding of transfer mouth (509), drain (511) have been seted up to the lower extreme of connecting box (506), the rear end fixedly connected with of regulation post (508) adjusts handle (518), the rear end of adjusting handle (518) runs through to the outside of connecting box (506).
2. The hydraulic gear pump with high precision adjustment stability of claim 1, wherein: the inner wall of connecting box (506) is assorted circular with the cross sectional shape of adjusting post (508), and the below is two lead the under shed of dirty mouthful (507) and the both sides opening of transfer port (509) and all be parallel with the horizontal plane, transfer port (509) are perpendicular mutually with drain (511).
3. The hydraulic gear pump with high precision adjustment stability of claim 1, wherein: the shape of first filter screen (502) is the umbrella form, the tip of first filter screen (502) sets up in the side of keeping away from pump case (1), guide frame (504) and scraper blade (505) all are parallel with first filter screen (502), water conservancy diversion leaf (503) are the three-dimensional distortion curved surface body.
4. The hydraulic gear pump with high precision adjustment stability of claim 1, wherein: constant head tank (512) have been seted up to inner wall one side of connecting box (506), the inner wall of constant head tank (512) rotates and is connected with locating lever (513), the rear end of locating lever (513) run through constant head tank (512) and with adjust post (508) fixed connection, the fixed surface of locating lever (513) is connected with stopper (514) with constant head tank (512) sliding connection, the cross sectional shape of constant head tank (512) is fan-shaped, the contained angle of two cross-section straight flanges of constant head tank (512) is ninety degrees.
5. The high precision regulation stability hydraulic gear pump of claim 4, characterized in that: fixedly connected with rubber spring (515) between stopper (514) and constant head tank (512), rubber spring (515) are in compression state.
6. The hydraulic gear pump with high precision adjustment stability of claim 1, wherein: the top opposite side lead the inner wall embedding of dirty mouthful (507) to install check valve (516), the separation direction of check valve (516) is top-down, the top opposite side lead the inner wall embedding of dirty mouthful (507) to install third filter screen (517) that set up in check valve (516) top.
7. The hydraulic gear pump with high precision adjustment stability of claim 1, wherein: adjusting device (6) including the embedding install in pump case (1) another side end and with play oil pipe (601) of conduction chamber (2) intercommunication, the inner wall fixedly connected with of play oil pipe (601) is fixing base (602) that cyclic annular distributes, the surface rotation of fixing base (602) is connected with separation blade (603), the inner wall sliding connection of play oil pipe (601) has ejector sleeve (604) with separation blade (603) contact, the inner wall sliding connection of ejector sleeve (604) has solid fixed ring (605), the one end that separation blade (603) were kept away from to solid fixed ring (605) runs through ejector sleeve (604) and with play oil pipe (601) fixed connection, the upper end fixedly connected with of play oil pipe (601) miniature electric putter (606), the surface sliding connection of miniature electric putter (606) has oil storage cylinder (607) with play oil pipe (601) fixed connection, the inner wall sliding connection of oil storage cylinder (607) has piston(s) (606) fixed connection with miniature electric putter (606) 608) One end of the oil storage cylinder (607), which is far away from the pump shell (1), is fixedly connected with an oil guide pipe (609) communicated with the oil storage cylinder (607), and the lower end of the oil guide pipe (609) sequentially penetrates through the oil outlet pipe (601) and the fixing ring (605) and extends into the pushing pipe (604).
8. The hydraulic gear pump with high precision adjustment stability of claim 7, wherein: the rubber bag (610) is fixedly connected to one side, close to the inner wall of the blocking blade (603), of the push pipe (604), one end, far away from the blocking blade (603), of the rubber bag (610) is fixedly connected with the fixing ring (605), and one end, close to the blocking blade (603), of the oil guide pipe (609) penetrates into the rubber bag (610).
9. The hydraulic gear pump with high precision adjustment stability of claim 7, wherein: the cross section of the blocking blade (603) is fan-shaped, and the cross section of one end, close to the pump shell (1), of the push pipe (604) is arc-shaped.
10. The hydraulic gear pump with high precision adjustment stability of claim 7, wherein: the adjusting device (6) further comprises a single chip microcomputer (611) and two hydraulic sensors (612), the single chip microcomputer (611) is fixedly connected to the front end of the pump shell (1), the hydraulic sensors (612) are fixedly connected to the inner wall of the oil inlet pipe (501), the hydraulic sensors (612) are arranged between the first filter screen (502) and the conduction cavity (2) on one side, the hydraulic sensors (612) are fixedly connected to the inner wall of the oil outlet pipe (601) on the other side, and the hydraulic sensors (612) are arranged between the blocking blades (603) and the conduction cavity (2) on the other side.
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