CN110792591A - Direct-drive hydraulic pump - Google Patents
Direct-drive hydraulic pump Download PDFInfo
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- CN110792591A CN110792591A CN201911109415.1A CN201911109415A CN110792591A CN 110792591 A CN110792591 A CN 110792591A CN 201911109415 A CN201911109415 A CN 201911109415A CN 110792591 A CN110792591 A CN 110792591A
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- fixedly connected
- oil
- rotating
- filter
- hydraulic pump
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- 238000001914 filtration Methods 0.000 claims abstract description 46
- 239000002775 capsule Substances 0.000 claims description 5
- 239000010720 hydraulic oil Substances 0.000 abstract description 123
- 239000003921 oil Substances 0.000 abstract description 106
- 239000012535 impurity Substances 0.000 abstract description 21
- 230000003749 cleanliness Effects 0.000 abstract description 12
- 238000005299 abrasion Methods 0.000 abstract description 8
- 230000003068 static effect Effects 0.000 abstract description 2
- 239000000428 dust Substances 0.000 description 19
- 239000002184 metal Substances 0.000 description 19
- 230000000694 effects Effects 0.000 description 13
- 230000007246 mechanism Effects 0.000 description 10
- 230000002035 prolonged effect Effects 0.000 description 9
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000005265 energy consumption Methods 0.000 description 3
- 239000010687 lubricating oil Substances 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 230000002542 deteriorative effect Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 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
- 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
-
- 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
-
- 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
- F04C2240/00—Components
- F04C2240/80—Other components
Abstract
The invention belongs to the technical field of hydraulic machinery, and particularly relates to a direct-drive hydraulic pump which comprises a lower shell, a rotating blade and a filter element, wherein the upper surface of the lower shell is fixedly connected with an upper shell; a rotating blade is arranged in the upper shell; the rotating blades are fixedly connected with a filter element through a rotating column; the outer surface of the filter element is fixedly connected with filter bags which are uniformly arranged; the inner surface of the lower shell is fixedly connected with filter bags which are uniformly arranged; the direct-drive hydraulic pump effectively solves the problems that in the prior art, the oil inlet end of the direct-drive hydraulic pump body is subjected to static filtration through a simple filter element, the effective filtration area is small, the impurity capacity is poor, the filtration efficiency is low, the flow resistance of filtration is large and the like, effectively utilizes the flowing energy of hydraulic oil, improves the cleanliness of the hydraulic oil, reduces the abrasion speed of gear engagement, greatly prolongs the service life of the direct-drive hydraulic pump, and has a simple structure.
Description
Technical Field
The invention belongs to the technical field of hydraulic machinery, and particularly relates to a direct-drive hydraulic pump.
Background
The hydraulic pump is a power element of a hydraulic system, is driven by an engine or a motor, sucks oil from a hydraulic oil tank, discharges pressure oil, and sends the pressure oil to an execution element, and is divided into a gear pump, a plunger pump, a vane pump and a screw pump according to the structure.
The common problems of the direct-drive gear pump are that an oil inlet filter element is too dirty, the oil absorption is insufficient, the cleanliness of hydraulic oil is poor, the internal abrasion is aggravated, the volumetric efficiency is reduced, oil leaks and throttles from an internal gap to generate heat, an oil outlet pipeline is blocked by foreign matters, the pressure is infinitely increased, and the problem is basically great in relation with the cleanliness of the hydraulic oil.
Among the prior art, the oil feed end of directly driving type hydraulic pump body filters through simple filter core is quiet, and effectual filter area is less, impurity can the capacity relatively poor, filtration efficiency is lower and filterable flow resistance is great, and the cleanliness of hydraulic oil is relatively poor, can accelerate gear engagement's wearing and tearing speed for hydraulic oil worsens fast, reduces the life who directly drives type hydraulic pump.
Disclosure of Invention
In order to make up for the defects of the prior art and solve the problems that the oil inlet end of a direct-drive hydraulic pump body is statically filtered through a simple filter element in the prior art, the effective filtering area is small, the impurity capacity is poor, the filtering efficiency is low, the flow resistance of filtering is large and the like, the invention provides a direct-drive hydraulic pump.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a direct-drive hydraulic pump, which comprises a hydraulic pump body; the oil inlet end of the hydraulic pump body is fixedly connected with a lower shell; the lower shell is designed to be a cylindrical structure; a first through hole which is communicated up and down is formed in the lower shell; the upper surface of the lower shell is fixedly connected with an upper shell through a fastening piece; a second through hole which is communicated up and down is formed in the upper shell; a horizontally placed supporting baffle is fixedly connected to the position, close to the lower surface of the upper shell, in the second through hole; the supporting baffle is provided with a rotating hole which is communicated up and down at the axis position of the upper shell; the inner part of the rotating hole is rotatably connected with a rotating column through a bearing, and the lower surface of the supporting baffle is fixedly connected with a bearing end cover at the position below the bearing; the upper surface of the supporting baffle is fixedly connected with a rotating ring at the position of the rotating hole; the rotating ring and the rotating column are connected with the same O-shaped ring in a rotating mode; the top end of the rotating column is fixedly connected with rotating blades which are uniformly arranged; the bottom end of the rotating column is fixedly connected with a filter element, and the filter element and the rotating column are concentric; a cavity is formed in the filter element; the outer surface of the filter element is provided with uniformly distributed filter holes; the outer surface of the filter element is fixedly connected with filter bags at the positions of the filter holes; the interior of each filter bag is provided with a first magnet; oil inlet holes which are uniformly distributed are formed in the outer surface of the rotating column between the rotating ring and the rotating blade; the rotating column is internally provided with a channel, and the oil inlet hole and the cavity are communicated through the channels; when the hydraulic pump works, after the hydraulic pump body is powered on, hydraulic oil can be continuously sucked from the oil inlet end of the hydraulic pump body, due to the pressure difference effect of suction force, the hydraulic oil can be firstly guided into the second through hole through the upper shell, the hydraulic oil can drive the rotating blade to rotate in the process of passing through the second through hole, the rotating blade further drives the rotating column to rotate in the rotating hole, the rotating column further drives the filter element in the lower shell to rotate, due to the supporting baffle plate arranged in the second through hole, the hydraulic oil can enter the channel through the oil inlet hole, and then the hydraulic oil is guided into the cavity of the filter element through the channel, the hydraulic oil in the cavity can generate centrifugal force due to the rotation of the filter element, so the hydraulic oil can penetrate through the filter hole to enter the filter element due to the effect of the centrifugal force, the hydraulic oil can rapidly penetrate through the filter element for filtration, the, the rotation of the filter element is realized, because the rotation of the filter element generates stronger centrifugal force, the hydraulic oil in the filter element can be accelerated to filter, the flow resistance generated by filtering is reduced, metal abrasive dust generated by gear abrasion and other impurities can be effectively filtered and collected by arranging the filter bag outside the filter element, the impurity content in the hydraulic oil is reduced, the metal abrasive dust can be adsorbed on the surface of the filter bag by the first magnet arranged in the filter bag, the stirring of the metal abrasive dust in the filter bag is reduced, the filter bag is blocked to influence the filtering efficiency, the flow resistance of the hydraulic oil is reduced, the filtering effective area is greatly increased by the filter bag, when the filter bag rotates, stronger centrifugal force can be generated, and when the rotation is finished, the filter bag naturally sags, the phenomenon of impurity backflow can be avoided, and through arranging the rotary ring and the O-shaped ring, the gap between the rotary column and the rotary hole can be effectively sealed, the hydraulic pump has the advantages that the problem that unfiltered hydraulic oil directly enters the first through hole through the gap between the rotating column and the rotating hole is solved, the cleanliness of oil products is seriously reduced along with the fact that the filtered hydraulic oil flows into the hydraulic pump body together, further the gear abrasion is accelerated, the problems of failure, blockage and the like of the one-way sealing rubber piece are solved, the service life of the direct-drive hydraulic pump is greatly prolonged, the problems that the prior art is solved through the direct-drive hydraulic pump, the oil inlet end of the direct-drive hydraulic pump body is statically filtered through a simple filter element, the effective filtering area is small, the capacity of impurities is poor, the filtering efficiency is low, the flow resistance of filtering is large and the like are solved, the flowing energy of the hydraulic oil is effectively utilized, the cleanliness of the hydraulic oil is improved, the abrasion speed of gear engagement is reduced, the service life of the.
Preferably, the outer surface of the rotating column is provided with oil drainage holes which are uniformly distributed at the position between the filter element and the bearing end cover; the inside of each oil drainage hole is fixedly connected with a pressure control valve; when in work, when the direct-drive hydraulic pump is used for a long time, a large amount of impurities are accumulated in the filter bag, therefore, the flow resistance to the hydraulic oil is increased, and therefore, the hydraulic oil in the filter element is accumulated in a large amount and is difficult to discharge, the pressure intensity is increased, when the internal pressure of the filter element is increased to a certain value, the pressure control valve in the pressure relief hole is opened, the hydraulic oil flows out of the channel through the oil drainage hole, then enters the oil inlet end of the direct-drive hydraulic pump body through the first through hole to participate in oil pressure work, and oil drainage through the oil drainage hole avoids the hard connection of a movement mechanism in a non-lubricating oil state, the movement of the mechanism is dry and astringent, the friction force is large, more friction heat can be generated, the power consumption is increased, the energy consumption is increased, and power overload is easily generated, so that the power source is burnt, the friction of a moving mechanism is increased, the service life is greatly reduced, and the like, and the emergency capacity under special conditions is realized.
Preferably, the inner surface of the lower shell is provided with a filter tank at the height position of the oil drainage hole; the inner surface of the lower shell is provided with uniformly arranged filtering holes at the bottom of the filtering tank; the inner surface of the lower shell is fixedly connected with filter bags at the positions of the filter holes; the during operation, after the pressure control valve is opened, can make the hydraulic oil of a large amount of no filterable states directly leading into the hydraulic pump originally internally, this state is long-time to be moved, and the cleanliness of hydraulic oil can worsen fast, and impurity content increases, and the oil descends, and then can accelerate the damage of directly driving the type hydraulic pump, and the life-span reduces, consequently through setting up the filter bag, can play certain filter effect when the filter core function is inefficacy, has avoided the hydraulic oil of worsening to directly participate in work.
Preferably, the inside of each filter bag is provided with a second magnet; during operation, when the metal abrasive dust in the hydraulic oil enters the filter bag, the metal abrasive dust can be adsorbed and captured by the second magnet in time, the blockage of the filter bag by the metal abrasive dust is reduced, the service life of the filter bag can be prolonged, the effective filtering time under the failure condition of the filter element is prolonged, the effective response time is provided for maintenance, the direct-drive hydraulic pump can still effectively operate during the period, and the oil product is effectively prevented from deteriorating.
Preferably, the inner surface of the lower shell is fixedly connected with an oil guide disc at a position below the opening of the filter tank, and the oil guide disc is positioned at a position below the oil drainage hole; when the hydraulic oil filter is in work, the flow resistance and the power of hydraulic oil are changed greatly, so that the flowing power of the hydraulic oil is changed, the rotating speed of the rotating blade is changed to a certain degree, the rotating speed of the rotating blade driving the rotating column is fluctuated greatly, when the pressure of the hydraulic oil is low, the rotating speed of the rotating column is low, the distance of the hydraulic oil sprayed out of the oil drainage hole is short, when the pressure of the hydraulic oil is high, the rotating speed of the rotating column is high, the distance of the hydraulic oil sprayed out of the oil drainage hole is long, when the distance of the hydraulic oil sprayed out of the oil drainage hole is short, the hydraulic oil cannot be effectively sprayed into the filter tank due to insufficient stroke of the hydraulic oil, the hydraulic oil cannot be filtered by the filter bag, and can fall onto the oil guide plate when the stroke of the hydraulic oil sprayed out of the oil drainage hole is insufficient by arranging the oil guide plate, and the hydraulic oil can, the effective filtration of fluid is realized.
Preferably, the inside of each oil drainage hole is hinged with a control plate, and the bottom of each control plate is obliquely arranged towards the outer direction of the rotating column; the upper surfaces of the control panels are fixedly connected with springs, and the other ends of the springs are fixedly connected with corresponding oil drainage holes; the upper surface of the control panel is fixedly connected with a first ball head at a position close to the rotation center; the second ball heads are fixedly connected to the positions, close to the rotating center of the control plate, in the oil drainage holes, and are in mutual contact with the first ball heads through the rotation of the control plate; when the filter element is in failure, people are often difficult to perceive, so that the direct-drive hydraulic pump cannot be timely and effectively maintained, and people know that when the oil pressure is insufficient, if the opening size of the pressure relief hole is large, the injection stroke of the hydraulic oil passing through the pressure relief hole is low, so that by arranging the control plate and the spring in the pressure relief hole, when the oil pressure is insufficient, the hydraulic oil can jack up the control plate and compress the spring, and the larger the oil pressure is, the larger the opening is, so that the automatic adjustment of the opening size of the pressure relief hole is effectively realized, the opening is small when the oil pressure is insufficient, the hydraulic oil can be ensured to keep a certain injection stroke as far as possible, meanwhile, by arranging the first ball head and the second ball head, when the control plate rotates, the first ball head and the second ball head collide to generate collision sound, when external personnel hear the sound inside the direct, can know that the pressure release hole has opened, can maintain, avoid under the long-term inoperative condition of filter core, hydraulic oil filter effect descends, filtration efficiency reduces and flow resistance increase scheduling problem, prevented hydraulic oil later stage deterioration phenomenon, realized directly driving type hydraulic pump maintenance's promptness, and then life greatly prolongs.
The invention has the following beneficial effects:
1. the direct-drive hydraulic pump is characterized in that the lower shell, the rotating blades and the filter element are arranged, the upper shell is fixedly connected with the upper surface of the lower shell, the rotating blades are arranged in the upper shell and are fixedly connected with the filter element through the rotating columns, the outer surface of the filter element is fixedly connected with the uniformly arranged filter capsules, the rotating blades can be driven to rotate in the flowing process of hydraulic oil, the filter element and the filter capsules can be further rotated, the hydraulic oil is filtered and thrown out through the filter capsules, the problems that in the prior art, the oil inlet end of a direct-drive hydraulic pump body is subjected to static filtration through the simple filter element, the effective filtration area is small, the impurity capacity is poor, the filtration efficiency is low, the flow resistance of filtration is large and the like are effectively solved, the flowing energy of the hydraulic oil is effectively utilized, the cleanliness of the hydraulic oil is improved, the wear rate of gear engagement is reduced, and the service life of, the structure is simple.
2. The direct-drive hydraulic pump is provided with the filter bag, the second magnet and the oil guide disc, the filter bags are uniformly arranged on the inner surface of the lower shell, the second magnet is arranged in each filter bag, the oil guide disc is arranged above each filter bag, and the oil drain holes are uniformly arranged on the rotating column above the oil guide disc, so that the problems of dry and unsmooth movement of a movement mechanism, high friction force, high friction heat, high power consumption, high energy consumption, high power overload and the like caused by the fact that a power source is burnt and the like due to the fact that the hard connection of a movement mechanism in a non-lubricating oil state is effectively avoided, when the filter element fails, hydraulic oil is guided into the filter bag through the oil guide disc, the filter bag can achieve an effective filtering effect, deteriorated hydraulic oil is prevented from directly participating in work, and metal abrasive dust in the hydraulic oil can be adsorbed by the second magnet in time when entering the filter bag, the blockage of metal abrasive dust to the filter bag is reduced, the service life of the filter bag can be prolonged, the effective filtering time under the filter element failure condition is prolonged, and effective response time is provided for maintenance, so that the direct-drive hydraulic pump can still operate effectively during the period, and the rapid deterioration of oil products is effectively avoided.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is a cross-sectional view of a cartridge of the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 2 at A;
FIG. 5 is an enlarged view of a portion of FIG. 2 at B;
FIG. 6 is an enlarged view of a portion of FIG. 2 at C;
in the figure: the device comprises a lower shell 1, a hydraulic pump body 11, an upper shell 12, a supporting baffle 13, a filter tank 14, a filter bag 15, a second magnet 16, an oil guide disc 17, a rotating column 2, a rotating ring 21, an O-shaped ring 22, a rotating blade 23, an oil inlet hole 24, an oil drainage hole 25, a pressure control valve 26, a control plate 27, a spring 28, a filter element 3, a cavity 31, a filter bag 32 and a first magnet 33.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 6, the direct drive hydraulic pump of the present invention includes a hydraulic pump body 11; the oil inlet end of the hydraulic pump body 11 is fixedly connected with the lower shell 1; the lower shell 1 is designed into a cylindrical structure; a first through hole which is communicated up and down is formed in the lower shell 1; the upper surface of the lower shell 1 is fixedly connected with an upper shell 12 through a fastener; a second through hole which is communicated up and down is formed in the upper shell 12; a horizontally placed supporting baffle 13 is fixedly connected to the position, close to the lower surface of the upper shell 12, in the second through hole; the support baffle 13 is provided with a rotating hole which is communicated up and down at the axis position of the upper shell 12; the inside of the rotating hole is rotatably connected with a rotating column 2 through a bearing, and the lower surface of the supporting baffle 13 is fixedly connected with a bearing end cover at the position below the bearing; the upper surface of the supporting baffle 13 is fixedly connected with a rotating ring 21 at the position of the rotating hole; the rotating ring 21 and the rotating column 2 are connected with the same O-shaped ring 22 in a co-rotating manner; the top end of the rotating column 2 is fixedly connected with rotating blades 23 which are uniformly arranged; the bottom end of the rotating column 2 is fixedly connected with a filter element 3, and the filter element 3 and the rotating column 2 are concentric; a cavity 31 is arranged inside the filter element 3; the outer surface of the filter element 3 is provided with uniformly arranged filter holes; the outer surface of the filter element 3 is fixedly connected with filter bags 32 at the positions of the filter holes; the filter capsules 32 are internally provided with first magnets 33; the outer surface of the rotating column 2 is provided with oil inlet holes 24 which are uniformly distributed at the position between the rotating ring 21 and the rotating blade 23; the inside of the rotating column 2 is provided with a channel, and the oil inlet 24 and the cavity 31 are communicated through the channels; when the hydraulic pump works, after the hydraulic pump body 11 is powered on, hydraulic oil is continuously sucked from the oil inlet end of the hydraulic pump body 11, due to the pressure difference effect of the suction force, the hydraulic oil is firstly guided into the second through hole through the upper shell 12, the hydraulic oil drives the rotating blade 23 to rotate in the process of passing through the second through hole, the rotating blade 23 further drives the rotating column 2 to rotate in the rotating hole, the rotating column 2 further drives the filter element 3 in the lower shell 1 to rotate, due to the supporting baffle 13 arranged in the second through hole, the hydraulic oil enters the channel through the oil inlet hole 24, and is further guided into the cavity 31 of the filter element 3 through the channel, due to the rotation of the filter element 3, the hydraulic oil in the cavity 31 generates centrifugal force, and therefore the hydraulic oil passes through the filter hole to enter the filter bag 32 due to the effect of the centrifugal force, and then rapidly penetrates through the filtration of the filter bag 32, and, the rotation of the filter element 3 is realized by arranging the rotating blade 23 to effectively utilize the flow of hydraulic oil, because the rotation of the filter element 3 generates stronger centrifugal force, the hydraulic oil in the filter element 3 can be accelerated to filter, so the flow resistance generated by filtering is reduced, metal abrasive dust generated by gear abrasion and other impurities can be effectively filtered and collected by arranging the filter bag 32 outside the filter element 3, the content of the impurities in the hydraulic oil is reduced, the metal abrasive dust can be adsorbed on the surface of the first magnet 33 arranged in the filter bag 32, the stirring of the metal abrasive dust in the filter bag 32 is reduced, the filter bag 32 is blocked, the filtering efficiency is influenced, the flow resistance of the hydraulic oil is reduced, the effective filtering area of the filter bag 32 is greatly increased, when the filter bag 32 rotates, stronger centrifugal force can be generated, and when the rotation is finished, the filter bag 32 naturally droops, the phenomenon of impurity backflow can be avoided, by arranging the rotary ring 21 and the O-shaped ring, the gap between the rotary column 2 and the rotary hole can be effectively sealed, the problems that the unfiltered hydraulic oil directly enters the first through hole through the gap between the rotary column 2 and the rotary hole and flows into the hydraulic pump body 11 along with the filtered hydraulic oil, so that the oil cleanliness is seriously reduced, further the gear abrasion is accelerated, the unidirectional sealing rubber part is ineffective and blocked and the like are solved, the service life of the direct-drive hydraulic pump is greatly prolonged, the direct-drive hydraulic pump solves the problems that in the prior art, the oil inlet end of the direct-drive hydraulic pump body 11 is statically filtered through the simple filter element 3, the effective filtering area is small, the impurity capacity is poor, the filtering efficiency is low, the flow resistance of the filtering is large and the like, the flowing energy of the hydraulic oil is effectively utilized, and the cleanliness of the hydraulic oil is improved, the wear speed of gear engagement is reduced, the service life of the direct-drive hydraulic pump is greatly prolonged, and the structure is simple.
As an embodiment of the invention, the outer surface of the rotating column 2 is provided with oil drainage holes 25 uniformly arranged between the filter element 3 and the bearing end cover; pressure control valves 26 are fixedly connected inside the oil drainage holes 25; when the direct-drive hydraulic pump works for a long time, a large amount of impurities are accumulated in the filter bag 32, therefore, the flow resistance to the hydraulic oil is increased, and therefore, the hydraulic oil in the filter element 3 is accumulated in a large amount and is difficult to be discharged, and the pressure is increased, when the inner pressure of the filter element 3 is increased to a certain value, the pressure control valve 26 in the pressure relief hole is opened, the hydraulic oil flows out of the passage through the oil relief hole 25, then enters the oil inlet end of the direct drive type hydraulic pump body 11 through the first through hole to participate in oil pressure work, the oil drainage through the oil drainage hole 25 avoids the hard connection of the movement mechanism in the state without lubricating oil, the movement of the mechanism is dry and astringent, the friction force is large, more friction heat is generated, the power consumption is increased, the energy consumption is increased, and power overload is easily generated, so that the power source is burnt, the friction of a moving mechanism is increased, the service life is greatly reduced, and the like, and the emergency capacity under special conditions is realized.
As an embodiment of the present invention, the inner surface of the lower casing 1 is provided with a filter tank 14 at a height position of the oil drainage hole 25; the inner surface of the lower shell 1 is provided with uniformly arranged filtering holes at the bottom of the filtering tank 14; the inner surface of the lower shell 1 is fixedly connected with filter bags 15 at the positions of the filter holes; the during operation, after pressure control valve 26 is opened, can make the hydraulic oil of a large amount of no filterable states directly lead to hydraulic pump body 11 in, this state is long-time to be moved, and the cleanliness of hydraulic oil can worsen fast, and impurity content increases, and the oil descends, and then can accelerate the damage of directly driving the type hydraulic pump, and the life-span reduces, consequently through setting up filter bag 15, can play certain filter effect when 3 function failures of filter core, and the hydraulic oil of having avoided worsening directly participates in work.
As an embodiment of the present invention, the inside of the filter bag 15 is provided with a second magnet 16; during operation, when the metal abrasive dust in the hydraulic oil enters into the filter bag 15, the metal abrasive dust can be adsorbed and captured by the second magnet 16 in time, the blockage of the metal abrasive dust on the filter bag 15 is reduced, the service life of the filter bag 15 can be prolonged, the effective filtering time under the failure condition of the filter element 3 is prolonged, and effective response time is provided for maintenance, so that the direct-drive hydraulic pump can still effectively operate during the period, and the oil product is effectively prevented from deteriorating.
As an embodiment of the present invention, an oil guide tray 17 is fixedly connected to the inner surface of the lower casing 1 at a position below the opening of the filter tank 14, and the oil guide tray 17 is located at a position below the oil drain hole 25; when the hydraulic oil filter works, the oil pressure can be greatly changed due to the flow resistance and power change of the hydraulic oil, so the flowing power of the hydraulic oil can also be changed, and further the rotation speed of the rotating blades 23 can also be changed to a certain degree, so the rotation speed of the rotating blades 23 driving the rotating column 2 can also be greatly fluctuated, when the pressure intensity of the hydraulic oil is lower, the rotation speed of the rotating column 2 is smaller, so the distance of the hydraulic oil sprayed out from the oil drain holes 25 is closer, when the pressure intensity of the hydraulic oil is higher, the rotation speed of the rotating column 2 is higher, so the distance of the hydraulic oil sprayed out from the oil drain holes 25 is farther, when the distance of the hydraulic oil sprayed out from the oil drain holes 25 is closer, the hydraulic oil can not be effectively sprayed into the filter tank 14 due to insufficient stroke of the hydraulic oil, so the hydraulic oil can not be filtered by the filter bag 15, can fall on the oil guide plate 17, and the hydraulic oil automatically flows into the filter tank 14 through the oil guide plate, so that the oil is effectively filtered.
As an embodiment of the present invention, the inside of the oil drainage hole 25 is hinged with a control plate 27, and the bottom of the control plate 27 is inclined towards the outside direction of the rotating column 2; the upper surfaces of the control panels 27 are fixedly connected with springs 28, and the other ends of the springs 28 are fixedly connected in the corresponding oil drainage holes 25; the upper surface of the control plate 27 is fixedly connected with a first ball head at a position close to the rotation center; a second bulb is fixedly connected to the position, close to the rotation center of the control plate 27, in the oil drainage hole 25, and the second bulb and the first bulb are in mutual contact through the rotation of the control plate 27; when the filter element 3 fails, people are often hard to perceive, so that the direct-drive hydraulic pump cannot be maintained and maintained timely and effectively, and people know that when the oil pressure is insufficient, if the opening size of the pressure relief hole is large, the injection stroke of the hydraulic oil passing through the pressure relief hole is low, so that by arranging the control plate 27 and the spring 28 in the pressure relief hole, when the oil pressure is insufficient, the hydraulic oil can jack up the control plate 27 and compress the spring 28, and the larger the oil pressure is, the larger the opening is, so that the automatic adjustment of the opening size of the pressure relief hole is effectively realized, the opening is small when the oil pressure is insufficient, a certain injection stroke of the hydraulic oil can be ensured as far as possible, meanwhile, by arranging the first ball head and the second ball head, when the control plate 27 rotates, the first ball head and the second ball head collide to generate collision sound, when external personnel hear the sound inside the direct-, can know that the pressure release hole has opened, can maintain, avoid under the long-term inoperative condition of filter core 3, hydraulic oil filter effect descends, filtration efficiency reduces and flow resistance increase scheduling problem, has prevented hydraulic oil later stage aggravation phenomenon, has realized the promptness that directly drives type hydraulic pump maintenance, and then life greatly prolongs.
The specific working process is as follows:
when the hydraulic pump works, after the hydraulic pump body 11 is powered on, hydraulic oil is continuously sucked from the oil inlet end of the hydraulic pump body 11, due to the pressure difference effect of the suction force, the hydraulic oil is firstly guided into the second through hole through the upper shell 12, the hydraulic oil drives the rotating blade 23 to rotate in the process of passing through the second through hole, the rotating blade 23 further drives the rotating column 2 to rotate in the rotating hole, the rotating column 2 further drives the filter element 3 in the lower shell 1 to rotate, due to the supporting baffle 13 arranged in the second through hole, the hydraulic oil enters the channel through the oil inlet hole 24, and is further guided into the cavity 31 of the filter element 3 through the channel, due to the rotation of the filter element 3, the hydraulic oil in the cavity 31 generates centrifugal force, and therefore the hydraulic oil passes through the filter hole to enter the filter bag 32 due to the effect of the centrifugal force, and then rapidly penetrates through the filtration of the filter bag 32, and, the rotation of the filter element 3 is realized by arranging the rotating blades 23 to effectively utilize the flow of the hydraulic oil, because the rotation of the filter element 3 generates stronger centrifugal force, the filtering of the hydraulic oil in the filter element 3 can be accelerated, therefore, the flow resistance generated by filtration is reduced, metal abrasive dust generated by gear abrasion and other impurities can be effectively filtered and collected by arranging the filter bag 32 outside the filter element 3, the impurity content in the hydraulic oil is reduced, and the first magnet 33 arranged in the filter bag 32 can adsorb the metal abrasive dust on the surface of the filter bag, thereby reducing the stirring of the metal abrasive dust in the filter bag 32, blocking the filter bag 32, influencing the filtering efficiency, reducing the flow resistance of the hydraulic oil, and the filter bag 32 greatly increases the effective area for filtering, when the filter bag 32 rotates, stronger centrifugal force can be generated, when the rotation is finished, the filter bag 32 naturally droops, so that the phenomenon of impurity backflow can be avoided; when the service life of the direct-drive hydraulic pump is long, a large amount of impurities are accumulated in the filter bag 32, so that the flow resistance of hydraulic oil is increased, a large amount of hydraulic oil in the filter element 3 is accumulated and is difficult to discharge, and further, the pressure intensity is increased, when the internal pressure of the filter element 3 is increased to a certain value, the pressure control valve 26 in the pressure relief hole is opened, the hydraulic oil flows out of a channel through the oil drainage hole 25, and then enters the oil inlet end of the direct-drive hydraulic pump body 11 through the first through hole to participate in oil pressure work, and through oil drainage of the oil drainage hole 25, hard connection of a movement mechanism in a lubrication-free oil state is avoided, the movement of the mechanism is dry and; after the pressure control valve 26 is opened, a large amount of hydraulic oil in a non-filtering state can be directly led into the hydraulic pump body 11, the state is operated for a long time, the cleanliness of the hydraulic oil can be rapidly deteriorated, the impurity content is increased, the oil product is reduced, the damage of the direct-drive hydraulic pump can be accelerated, and the service life is shortened, so that a certain filtering effect can be achieved when the filter element 3 fails in function by arranging the filter bag 15; when metal abrasive dust in the hydraulic oil enters the filter bag 15, the metal abrasive dust can be adsorbed and captured by the second magnet 16 in time; because the flow resistance and the power of the hydraulic oil change, the oil pressure changes greatly, so the flowing power of the hydraulic oil changes, and further the rotation speed of the rotating blades 23 changes to a certain extent, so the rotation speed of the rotating blades 23 driving the rotating column 2 fluctuates greatly, when the pressure of the hydraulic oil is low, the rotating speed of the rotating column 2 is low, so the distance of the hydraulic oil sprayed out from the oil drain holes 25 is short, when the pressure of the hydraulic oil is high, the rotating speed of the rotating column 2 is high, so the distance of the hydraulic oil sprayed out from the oil drain holes 25 is long, when the distance of the hydraulic oil sprayed out from the oil drain holes 25 is short, the hydraulic oil cannot be effectively sprayed into the filter tank 14 due to insufficient stroke of the hydraulic oil, so the hydraulic oil cannot be filtered by the filter bag 15, by arranging the oil guide plate 17, when the stroke of the hydraulic oil sprayed out from the oil drain holes 25 is insufficient, the, hydraulic oil automatically flows into the filter tank 14 through the oil guide plate; when the filter element 3 fails, people are often hard to perceive, and therefore the direct drive type hydraulic pump cannot be maintained and maintained timely and effectively, and people know that when the oil pressure is insufficient, if the opening size of the pressure relief hole is large, the injection stroke of the hydraulic oil passing through the pressure relief hole is low, therefore, by arranging the control plate 27 and the spring 28 in the pressure relief hole, when the oil pressure is available, the hydraulic oil can jack up the control plate 27 and compress the spring 28, and the opening size of the pressure relief hole is large, so that the automatic adjustment of the opening size of the pressure relief hole is effectively realized, the opening is small when the oil pressure is insufficient, a certain injection stroke of the hydraulic oil can be ensured as far as possible, meanwhile, by arranging the first ball head and the second ball head, when the control plate 27 rotates, the first ball head and the second ball head collide to generate collision sound, when external personnel hear the sound inside the direct, it can be known that the pressure relief vent is open and requires maintenance.
While there have been shown and described what are at present considered the fundamental principles of the invention, its essential features and advantages, it will be understood by those skilled in the art that the invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, but various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.
Claims (6)
1. A direct drive type hydraulic pump comprises a hydraulic pump body (11), and is characterized in that: the oil inlet end of the hydraulic pump body (11) is fixedly connected with the lower shell (1); the lower shell (1) is designed into a cylindrical structure; a first through hole which is communicated up and down is formed in the lower shell (1); the upper surface of the lower shell (1) is fixedly connected with an upper shell (12) through a fastener; a second through hole which is communicated up and down is formed in the upper shell (12); a horizontally placed supporting baffle (13) is fixedly connected to the position, close to the lower surface of the upper shell (12), in the second through hole; the supporting baffle (13) is provided with a rotating hole which is communicated up and down at the axis position of the upper shell (12); the inside of the rotating hole is rotatably connected with a rotating column (2) through a bearing, and the lower surface of the supporting baffle (13) is fixedly connected with a bearing end cover at the position below the bearing; the upper surface of the supporting baffle (13) is fixedly connected with a rotating ring (21) at the position of the rotating hole; the rotating ring (21) and the rotating column (2) are connected with the same O-shaped ring (22) in a rotating way; the top end of the rotating column (2) is fixedly connected with rotating blades (23) which are uniformly arranged; the bottom end of the rotating column (2) is fixedly connected with a filter element (3), and the filter element (3) and the rotating column (2) are concentric; a cavity (31) is formed in the filter element (3); the outer surface of the filter element (3) is provided with uniformly arranged filter holes; the outer surface of the filter element (3) is fixedly connected with filter bags (32) at the positions of the filter holes; a first magnet (33) is arranged in each filter capsule (32); oil inlet holes (24) which are uniformly distributed are formed in the outer surface of the rotating column (2) between the rotating ring (21) and the rotating blade (23); the rotating column (2) is internally provided with a channel, and the channel is communicated with the oil inlet hole (24) and the cavity (31).
2. The direct drive hydraulic pump of claim 1, wherein: oil drainage holes (25) which are uniformly distributed are formed in the outer surface of the rotating column (2) between the filter element (3) and the bearing end cover; and pressure control valves (26) are fixedly connected in the oil drainage holes (25).
3. The direct drive hydraulic pump of claim 2, wherein: a filter tank (14) is arranged on the inner surface of the lower shell (1) at the height position of the oil drainage hole (25); the inner surface of the lower shell (1) is provided with uniformly arranged filtering holes at the bottom of the filtering tank (14); the inner surface of the lower shell (1) is fixedly connected with filter bags (15) at the positions of the filter holes.
4. A direct drive hydraulic pump as set forth in claim 3, wherein: and second magnets (16) are arranged in the filter bags (15).
5. A direct drive hydraulic pump as set forth in claim 3, wherein: the inner surface of the lower shell (1) is fixedly connected with an oil guide disc (17) below an opening of the filter tank (14), and the oil guide disc (17) is positioned below the oil drainage hole (25).
6. The direct drive hydraulic pump of claim 2, wherein: control plates (27) are hinged inside the oil drainage holes (25), and the bottoms of the control plates (27) are obliquely arranged towards the outer direction of the rotating column (2); the upper surfaces of the control panels (27) are fixedly connected with springs (28), and the other ends of the springs (28) are fixedly connected into the corresponding oil drainage holes (25); the upper surface of the control plate (27) is fixedly connected with a first ball head at a position close to the rotation center; the second ball heads are fixedly connected to the positions, close to the rotating center of the control plate (27), in the oil drainage holes (25), and the second ball heads are in mutual contact with the first ball heads through rotation of the control plate (27).
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| CN201911109415.1A CN110792591B (en) | 2019-11-13 | 2019-11-13 | Direct-drive hydraulic pump |
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| CN201911109415.1A CN110792591B (en) | 2019-11-13 | 2019-11-13 | Direct-drive hydraulic pump |
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| CN110792591B CN110792591B (en) | 2021-11-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111980927A (en) * | 2020-09-01 | 2020-11-24 | 安徽凯浦泵业有限公司 | High-pressure water pump for fire fighting and extinguishing and use method thereof |
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| JP2005041015A (en) * | 2003-07-24 | 2005-02-17 | Jfe Steel Kk | Filter apparatus for molten plastic |
| CN203899281U (en) * | 2014-06-27 | 2014-10-29 | 上海鹭发电气(集团)有限公司 | Continuous oil filter device |
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| CN110792591B (en) | 2021-11-19 |
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Effective date of registration: 20211019 Address after: 214200 Pushu village, Xinjie street, Yixing City, Wuxi City, Jiangsu Province Applicant after: Jiangsu Jiexia Environmental Protection Technology Co.,Ltd. Address before: 210000 Room 201, unit 2, building 8, danguiju, today's home, Jianye District, Nanjing City, Jiangsu Province Applicant before: Wang Wenzhao |
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