CN108561740A - A kind of lubricating oil pump - Google Patents
A kind of lubricating oil pump Download PDFInfo
- Publication number
- CN108561740A CN108561740A CN201810752841.6A CN201810752841A CN108561740A CN 108561740 A CN108561740 A CN 108561740A CN 201810752841 A CN201810752841 A CN 201810752841A CN 108561740 A CN108561740 A CN 108561740A
- Authority
- CN
- China
- Prior art keywords
- garter spring
- slot
- guide groove
- rotor
- pump housing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N13/00—Lubricating-pumps
- F16N13/20—Rotary pumps
Abstract
The invention discloses a kind of lubricating oil pump, its key points of the technical solution are that the pump cover, intermeshing internal rotor and the outer rotor that are detachably connected including the pump housing, with the pump housing and the support shaft for being used to support internal rotor, the accommodating cavity for accommodating internal rotor and outer rotor is provided in the pump housing, internal rotor and outer rotor eccentric setting, it is characterised in that：The outer edge surface of outer rotor is fixedly connected with the lateral wall of accommodating cavity, internal rotor is connect with support shaft coaxial rotating, the pump housing is provided with the fixing axle for being used to support the pump housing backwards to the side of pump cover, fixing axle is connect with pump housing coaxial rotating, it is provided in fixing axle into oil outlet, support shaft is fixedly connected backwards to one end of pump cover with fixing axle, and the transmission gear for being useful for driving pump housing rotation is fixedly and coaxially connected on the pump housing, transmission gear drives under pump housing rotation status, and outer rotor drives internal rotor rotation.The lubricating oil pump is small to the active force of support shaft in the operating condition, and support shaft is hardly damaged.
Description
Technical field
The present invention relates to pump field, more particularly to a kind of lubricating oil pump.
Background technology
To ensure the cycle oil mass of engine lubrication system, machine oil is drawn onto main oil gallery by lubricating oil pump from oil sump, to start
The lubrication of each parts of machine provides necessary medium.Crescent gear pump is a kind of pump configuration of lubricating oil pump, the machine of the structure
Oil pump drives driven outer rotor to rotate in same direction by active internal rotor, in machine oil entrance internal rotor and the gear phase on outer rotor
Mutually separation forms negative pressure and sucks machine oil, and in machine oil exit, gear constantly insertion engages and squeezes machine oil and export.
It is generally concentric on active internal rotor to be fixedly connected with the support shaft for being useful for driving internal rotor rotation, due to the support shaft
It not only to drive internal rotor to rotate, outer rotor rotation is also driven by internal rotor, and need to overcome in outer rotor rotary course
Rotating friction force between outer rotor and the pump housing, therefore the twisting resistance that the support shaft is subject to is larger.Lubricating oil pump generally use improves
The mode of gear rotary speed improves the transfer efficiency of machine oil, therefore in order to improve transfer efficiency, the rotary speed of support shaft
Accelerate, the twisting resistance being subject to further increases, therefore easily deformed because twisting resistance is excessive under support shaft long-term work state or
Damage.
Invention content
In view of the deficiencies of the prior art, the present invention intends to provide a kind of lubricating oil pump, which is working
Small to the active force of support shaft under state, support shaft is hardly damaged.
To achieve the above object, the present invention provides following technical solutions：A kind of lubricating oil pump, including the pump housing and the pump housing can
The pump cover of dismantling connection, intermeshing internal rotor and outer rotor and the support shaft for being used to support internal rotor, in the pump housing
It is provided with the accommodating cavity for accommodating internal rotor and outer rotor, the internal rotor and outer rotor eccentric setting, the outer rotor
Outer edge surface is fixedly connected with the side wall of accommodating cavity, and the internal rotor is connect with support shaft coaxial rotating, and the pump housing is backwards to pump cover
Side be provided with the fixing axle for being used to support the pump housing, the fixing axle is connect with pump housing coaxial rotating, is set in the fixing axle
It is equipped with into oil outlet, the support shaft is fixedly connected backwards to one end of pump cover with fixing axle, is fixedly and coaxially connected on the pump housing
It is useful for that the transmission gear of pump housing rotation, the transmission gear is driven to drive under pump housing rotation status, in the outer rotor drive
Rotor rotates.
As a further improvement on the present invention, the lateral surface recess of the internal rotor is recessed with for accommodating machine oil
First slippage slot, first slippage slot are both provided with side close to support shaft side and slot, slid in first slippage slot
It is connected with for changing the sliding component of the first slippage slot inner engine oil capacity, the sliding component includes slipping block and can be in side
The guide post slid in fluting, the outer profile of the slipping block are adapted with the Internal periphery of the first slippage slot, and the support shaft is leaned on
Nearly internal rotor side is recessed with the guide groove slid for guide post, and the outer diameter of the guide post is mutually fitted with the groove width of guide groove
Match, described equal one end of guide post is fixedly connected with slipping block, and the other end passes through side to slot in being slid in guide groove, the internal rotor
Under rotation status, several guide posts in being slid in guide groove, the guide groove be circlewise arranged and the center of circle of guide groove with it is interior
The central axis of rotor and the central axis of outer rotor are in the same plane, and the central axis of the internal rotor, which is located at, to be oriented to
Between the center of circle of slot and the central axis of outer rotor, guide post drives slipping block along the length direction slip state of the first slippage slot
Under, the first slippage slot inner engine oil capacity constantly changes.
As a further improvement on the present invention, it is both provided between the slipping block and the first slippage slot for enhancing sliding
The rubber layer of seal between block and the first slippage slot, the rubber layer are enclosed set on slipping block one week and are fixedly connected with slipping block.
As a further improvement on the present invention, it is provided with the first garter spring and the second garter spring in the guide groove, described first
The center of circle of garter spring, the second garter spring and guide groove is respectively positioned on same straight line, and the internal diameter of first garter spring is more than the second garter spring
Internal diameter, be provided with several first balls between first garter spring and the outer ring side wall of guide groove, first ball it is outer
The distance between diameter and the first garter spring and guide groove outer ring side wall are adapted, circumferencial direction of several first balls along the first garter spring
Arrangement, is provided with several second balls, the outer diameter of second ball between second garter spring and the inner ring side wall of guide groove
The distance between second garter spring and guide groove inner ring side wall are adapted, and several second balls are arranged along the circumferencial direction of the second garter spring
Cloth, the distance between first garter spring and second garter spring are adapted with the outer diameter of guide post, and the guide post is in guide groove
The first garter spring and the second garter spring is driven to rotate under slip state.
As a further improvement on the present invention, the opposite sides of first garter spring and guide groove outer ring side wall is recessed with
For the first ball roll the first slot rolling, first slot rolling along the circumferencial direction of the first garter spring or guide groove outer ring side wall at
Ring-type setting, the cell wall cross section of first slot rolling is arranged at camber line, under the first garter spring rotation status, first rolling
Pearl rolls in two the first slot rollings, and the opposite sides of second garter spring and guide groove inner ring side wall is recessed with for second
The second slot rolling that ball rolls, circumferencial direction of second slot rolling along the second garter spring or guide groove inner ring side wall are circlewise set
Set, the cell wall cross section of second slot rolling is arranged at camber line, under the second garter spring rotation status, second ball in
It is rolled in two the second slot rollings.
As a further improvement on the present invention, the slipping block is recessed with the second slippage slot, institute towards outer rotor side
It states to slide in the second slippage slot and is connected with sliding plate, the outer profile of the sliding plate and the Internal periphery of the second slippage slot are mutually fitted
To match, the notch opposite sides of second slippage slot is provided with the block skidded off out of second slippage slot for stopping sliding plate,
Be provided with spring between the slot bottom and sliding plate of second slippage slot, the spring is in compressive state, the sliding plate in
The elastic force effect of spring is lower to be abutted against with block.
Beneficial effects of the present invention：Outer rotor rotation, outer rotor is driven to drive internal rotor around support shaft when the pump housing rotates
Central axis rotation, internal rotor forms negative pressure with the gear place of being separated from each other on outer rotor and inhaled into oil outlet by one
Entering machine oil, machine oil is squeezed by another into oil outlet with the constantly embedded engagement place of the gear on outer rotor and is exported by internal rotor,
Two are conducted with oil sump and main oil gallery respectively into oil outlet, therefore the lubricating oil pump can be drawn onto master from oil sump by machine oil
Oil duct, and the lubricating oil pump is at work, drives pump housing rotation, the pump housing that outer rotor and internal rotor is driven to turn again by transmission gear
Dynamic, rotary inertia is big, is more easy to drive internal rotor rotation, compared with traditional lubricating oil pump, the support shaft of the lubricating oil pump with interior turn
Son is rotatable connection, and support shaft is only used for support internal rotor and the rotation center as internal rotor, remains stationary as, support shaft is not
It needs to drive internal rotor rotation, therefore the support shaft is unlikely to deform or damages hardly by twisting resistance, therefore the lubricating oil pump
Small to the active force of support shaft in the operating condition, support shaft is hardly damaged.
Description of the drawings
Fig. 1 is a kind of dimensional structure diagram of lubricating oil pump；
Fig. 2 is a kind of sectional view of lubricating oil pump；
Fig. 3 is the schematic enlarged-scale view at A in Fig. 2；
Fig. 4 is the connection sectional view of sliding component and the first slippage slot；
Fig. 5 is the structural schematic diagram of fixing axle；
Fig. 6 is the structure sectional view of guide groove.
Reference numeral：1, the pump housing；11, accommodating cavity；2, pump cover；3, internal rotor；31, the first slippage slot；32, side is slotted；33、
Sliding component；331, slipping block；3311, the second slippage slot；3312, sliding plate；3313, block；3314, spring；332, guide post；
333, rubber layer；4, outer rotor；5, support shaft；6, fixing axle；61, guide groove；62, the first garter spring；63, the second garter spring；64,
One ball；65, the second ball；66, the first slot rolling；67, the second slot rolling；7, into oil outlet；8, transmission gear.
Specific implementation mode
With reference to the accompanying drawings and examples, the present invention is described in more detail.Wherein identical parts are with identical
Reference numeral indicates.It should be noted that word "front", "rear" used in the following description, "left", "right", "up" and "down"
Refer to that the direction in attached drawing, word " bottom surface " and " top surface ", "inner" and "outside" are referred respectively to towards or away from particular elements
The direction of geometric center.
Shown in 6, a kind of lubricating oil pump of the present embodiment, including the pump housing 1, the pump cover that is detachably connected with the pump housing 1
2, intermeshing internal rotor 3 and outer rotor 4 and it is used to support the support shaft 5 of internal rotor 3, is provided in the pump housing 1 for holding
Receive the accommodating cavity 11 of internal rotor 3 and outer rotor 4, internal rotor 3 and 4 eccentric setting of outer rotor, the outer edge surface and accommodating cavity of outer rotor 4
11 side wall is fixedly connected, and internal rotor 3 is connect with 5 coaxial rotating of support shaft, and the pump housing 1 is provided with backwards to the side of pump cover 2 and is used for
The fixing axle 6 of the pump housing 1, fixing axle 6 is supported to connect, be provided in fixing axle 6 into oil outlet 7, support shaft with 1 coaxial rotating of the pump housing
5 are fixedly connected backwards to one end of pump cover 2 with fixing axle 6, and the biography for being useful for that the pump housing 1 is driven to rotate is fixedly and coaxially connected on the pump housing 1
Moving gear 8, transmission gear 8 drive under 1 rotation status of the pump housing, and outer rotor 4 drives internal rotor 3 to rotate.
Into there are two the settings of oil outlet 7, and in use one be used for oil inlet, another works as the pump housing for fuel-displaced
Direction of rotation when changing, be formerly used for oil inlet becomes for fuel-displaced, being formerly used for fuel-displaced into oil outlet 7 into oil outlet 7
Become being used for oil inlet.May be provided with driving motor, driving motor brought by gear or Synchronous Transmission drive transmission gear 8 and
The pump housing 1 being fixedly connected with transmission gear 8 is rotated around the central axis of fixing axle 6, drives outer rotor 4 to revolve when the pump housing 1 rotates
Turn, outer rotor 4 drives internal rotor 3 to be rotated around the central axis of support shaft 5, and internal rotor 3 is separated from each other with the gear on outer rotor 4
Place forms negative pressure and sucks machine oil into oil outlet 7 by one, and internal rotor 3 is engaged with the constantly insertion of the gear on outer rotor 4
Machine oil is squeezed by another into oil outlet 7 and is exported by place, and two are mutually led with oil sump and main oil gallery respectively into oil outlet 7
It is logical, therefore the lubricating oil pump can be drawn onto main oil gallery from oil sump by machine oil, and the lubricating oil pump is at work, passes through transmission gear 8
The pump housing 1 is driven to rotate, the pump housing 1 drives outer rotor 4 and internal rotor 3 to rotate again, and rotary inertia is big, is more easy to drive 3 turns of internal rotor
Dynamic, compared with traditional lubricating oil pump, support shaft 5 and the internal rotor 3 of the lubricating oil pump are to be rotatably connected, and support shaft 5 is only used for supporting
Internal rotor 3 and as the rotation center of internal rotor 3, remains stationary as, and support shaft 5 need not drive internal rotor 3 to rotate, therefore should
Support shaft 5 is unlikely to deform or damages hardly by twisting resistance, therefore the lubricating oil pump is in the operating condition to support shaft 5
Active force is small, and support shaft 5 is hardly damaged.
As a kind of improved specific implementation mode, the lateral surface recess of internal rotor 3 is recessed with for accommodating machine oil
The first slippage slot 31, the first slippage slot 31 is both provided with side fluting 32 close to 5 side of support shaft, sliding in the first slippage slot 31
Shifting is connected with for changing the sliding component 33 of 31 inner engine oil capacity of the first slippage slot, and sliding component 33 includes 331 He of slipping block
The guide posts 332 that can be slid in side fluting 32, the outer profile of slipping block 331 and the Internal periphery of the first slippage slot 31 are mutually fitted
Match, support shaft 5 is recessed with the guide groove 61 slid for guide post 332 close to 3 side of internal rotor, the outer diameter of guide post 332 with
The groove width of guide groove 61 is adapted, and 332 equal one end of guide post is fixedly connected with slipping block 331, the other end pass through side fluting 32 in
It is slid in guide groove 61, under 3 rotation status of internal rotor, several guide posts 332 are in sliding in guide groove 61,61 cyclization of guide groove
Shape is arranged and the center of circle of guide groove 61 and the central axis of the central axis of internal rotor 3 and outer rotor 4 are in the same plane,
The central axis of internal rotor 3 is located between the center of circle and the central axis of outer rotor 4 of guide groove 61, and guide post 332 drives sliding
Under the length direction slip state of the first slippage slot 31,31 inner engine oil capacity of the first slippage slot constantly changes block 331.
When internal rotor 3 rotates, drive the sliding in the guide groove 61 of guide post 332, due to guide groove 61 the center of circle with it is interior
The mutual eccentric setting of central axis of rotor 3, therefore when the sliding in guide groove 61 of guide post 332, guide post 332 will drive
Slipping block 331 is in sliding in the first slippage slot 31, since the central axis of internal rotor 3 is located at the center of circle and the outer rotor of guide groove 61
Between 4 central axis, therefore when the engagement place of the notch face internal rotor 3 of the first slippage slot 31 and outer rotor 4, slipping block
331 are located at farthest with a distance from 31 slot bottom of the first slippage slot, institute's shape between the tooth on the tooth and outer rotor 4 on internal rotor 3 at this time
At oil storage space volume it is minimum, by the setting of the first slippage slot 31, sliding component 33, side fluting 32 and guide groove 61,
When internal rotor 3 rotates, the sliding in the first slippage slot 31 by slipping block 331, further increase tooth on internal rotor 3 with
The volume variation of oil storage space, when internal rotor 3 rotates a circle, the conveying capacity of machine oil are formed by between tooth on outer rotor 4
Increase, therefore the transfer efficiency higher of machine oil so that the lubricating oil pump is capable of providing in the case where 3 rotary speed of internal rotor is constant
Higher oil delivery efficiency.
As a kind of improved specific implementation mode, it is both provided between slipping block 331 and the first slippage slot 31 for increasing
The rubber layer 333 of seal between strong 331 and first slippage slot 31 of slipping block, rubber layer 333 enclose set on slipping block 331 1 weeks and with
Slipping block 331 is fixedly connected.
Due to rubber layer 333 have certain elasticity, rubber layer 333 be provided with conducive to filling slipping block 331 with
Gap between first slippage slot 31 so that the connection between slipping block 331 and the first slippage slot 31 is even closer, including avoiding
When being formed by the volume change of oil storage space between the tooth on the tooth on rotor 3 and outer rotor 4, machine oil passes through from oil storage space
Joint gap between slipping block 331 and the first slippage slot 31 enter the first slippage slot 31 slot bottom and slipping block 331 it is separate
Between 4 side of outer rotor, when the volume of oil storage space being caused to change machine oil can migration, the transfer efficiency of machine oil reduces.
As a kind of improved specific implementation mode, the first garter spring 62 and the second garter spring 63 are provided in guide groove 61, the
The center of circle of one garter spring 62, the second garter spring 63 and guide groove 61 is respectively positioned on same straight line, and the internal diameter of the first garter spring 62 is more than the
The internal diameter of two garter springs 63 is provided with several first balls 64, the first rolling between first garter spring 62 and the outer ring side wall of guide groove 61
The distance between the outer diameter of pearl 64 and the first garter spring 62 and 61 outer ring side wall of guide groove are adapted, and several first balls 64 are along first
The circumferencial direction of garter spring 62 is arranged, and several second balls 65 are provided between the second garter spring 63 and the inner ring side wall of guide groove 61,
The distance between the outer diameter of second ball 65 and the second garter spring 63 and 61 inner ring side wall of guide groove are adapted, several second balls 65
Circumferencial direction along the second garter spring 63 is arranged, the outer diameter of the distance between the first garter spring 62 and the second garter spring 63 with guide post 332
It is adapted, guide post 332 drives the first garter spring 62 and the second garter spring 63 to rotate under slip state in guide groove 61.
The slot bottom that guide post 332 may be configured as not with guide groove 61 abuts against, when guide post 332 is in sliding in guide groove 61
When, drive the first garter spring 62 and the second garter spring 63 to be rotated around its center of circle, 63 rotation status lower band of the first garter spring 62 and the second garter spring
Dynamic first ball 64 and the second ball 65 roll, therefore pass through the first garter spring 62, the second garter spring 63, the first ball 64 and the
The setting of two balls 65 so that rolling friction is changed by sliding friction between guide post 332 and guide groove 61 so that guide post
332 are easier to sliding in guide groove 61 and sliding is more smooth, reduce the rotation resistance suffered in rotary course of internal rotor 3
Power advantageously reduces internal rotor 3 and rotates required driving force, saves driving cost.
As a kind of improved specific implementation mode, the opposite sides of the first garter spring 62 and 61 outer ring side wall of guide groove is recessed
Equipped with the first slot rolling 66 rolled for the first ball 64, the first slot rolling 66 is along 61 outer ring side wall of the first garter spring 62 or guide groove
Circumferencial direction is circlewise arranged, and the cell wall cross section of the first slot rolling 66 is arranged at camber line, under 62 rotation status of the first garter spring, first
Ball 64 is rolled in two the first slot rollings 66, and the opposite sides of the second garter spring 63 and 61 inner ring side wall of guide groove is recessed with
For the second slot rolling 67 that the second ball 65 rolls, the second slot rolling 67 is along the circumference of 61 inner ring side wall of the second garter spring 63 or guide groove
Direction is circlewise arranged, and the cell wall cross section of the second slot rolling 67 is arranged at camber line, under 63 rotation status of the second garter spring, the second ball
65 roll in two the second slot rollings 67.
Pass through the setting of the first slot rolling 66 and the second slot rolling 67 so that the first ball 64 is limited in two the first slot rollings 66
Interior rolling, the second ball 65 are limited in two the second slot rollings 67 and roll, and the first ball 64 is with the second ball 65 and to the
One garter spring 62 and moving radially for the second garter spring 63 play position-limiting action, and the first garter spring 62 can be arranged with the second garter spring 63 at this time
For there are gaps with slot bottom close to 61 slot bottom side of guide groove, the rotation of the first garter spring 62 and the second garter spring 63 is further decreased
Resistance, since the first ball 64 and the second ball 65 are to the radial position-limiting action of the first garter spring 62 and the second garter spring 63,
When pump cover 2 removes, the first ball 64, the second ball 65, the first garter spring 62 and the second garter spring 63 will not take off from pump cover 2
Falling causes to lose.
As a kind of improved specific implementation mode, slipping block 331 is recessed with the second slippage slot towards 4 side of outer rotor
3311, sliding is connected with sliding plate 3312, the outer profile of sliding plate 3312 and the second slippage slot in the second slippage slot 3311
3311 Internal periphery is adapted, and the notch opposite sides of the second slippage slot 3311 is provided with for stopping sliding plate 3312 from second
The block 3313 skidded off in slippage slot 3311 is provided with spring between the slot bottom and sliding plate 3312 of the second slippage slot 3311
3314, spring 3314 is in compressive state, and sliding plate 3312 abuts against under the elastic force effect of spring 3314 with block 3313.
The rubber for being useful for improving leakproofness is may also set up between sliding plate 3312 and the second slippage slot 3311, due to interior turn
3 when turning to certain position, the oil in tooth socket can be enclosed between internal rotor 3 and the tooth socket of outer rotor 4 son, not with extraneous phase
Logical, this phenomenon is known as pocketed oil.As internal rotor 3 rotates, the volume of pocketed oil can first reduce to be increased again, is caused stress increase or is gone out
Existing vacuum phenomenon so that pressure transient damages parts, passes through the second slippage slot 3311, sliding plate 3312 and spring 3314
Setting, normal conditions down-shift board 3312 abuts against under the effect of the elastic force of centrifugal force and spring 3314 with block 3313,
When internal rotor 3 is rotated to pocketed oil position, sliding plate 3312 will be squeezed when the smaller volume of pocketed oil so that sliding plate 3312 is to the
One side slip of slot bottom of two slippage slots 3311, the volume variation of pocketed oil at this time is offset by the sliding of sliding plate 3312, when interior turn
When son 3 continues rotation so that the volume of pocketed oil increases, sliding plate 3312 is under the elastic force effect of spring 3314 to the second slippage slot
Until being abutted against with block 3313, the volume variation of pocketed oil at this time is supported by the sliding of sliding plate 3312 for 3311 notch sliding
Disappear, therefore pass through the setting of the second slippage slot 3311, sliding plate 3312 and spring 3314 so that the volume of pocketed oil is kept substantially
It is constant, therefore the pressure remained steady of pocketed oil, parts will not be damaged because of pocketed oil pressure change.
The above is only the preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-described embodiment,
All technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
For those of ordinary skill, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (6)
1. a kind of lubricating oil pump, including the pump housing (1), the pump cover (2), the intermeshing internal rotor (3) that are detachably connected with the pump housing (1)
With outer rotor (4) and it is used to support the support shafts (5) of internal rotor (3), is provided in the pump housing (1) for accommodating internal rotor
(3) with the accommodating cavity of outer rotor (4) (11), the internal rotor (3) and outer rotor (4) eccentric setting, it is characterised in that：It is described outer
The outer edge surface of rotor (4) is fixedly connected with the side wall of accommodating cavity (11), and the internal rotor (3) connects with support shaft (5) coaxial rotating
It connects, the pump housing (1) is provided with the fixing axle (6) for being used to support the pump housing (1), the fixing axle (6) backwards to the side of pump cover (2)
It connect, is provided on the fixing axle (6) into oil outlet (7), the support shaft (5) is backwards to pump cover with the pump housing (1) coaxial rotating
(2) one end is fixedly connected with fixing axle (6), is fixedly and coaxially connected on the pump housing (1) and is useful for driving the pump housing (1) rotation
Transmission gear (8), the transmission gear (8) drive under the pump housing (1) rotation status, and the outer rotor (4) drives internal rotor (3) to revolve
Turn.
2. a kind of lubricating oil pump according to claim 1, it is characterised in that：The lateral surface recess of the internal rotor (3) is equal
It is recessed with the first slippage slot (31) for accommodating machine oil, first slippage slot (31) is respectively provided with close to support shaft (5) side
There is side to slot (32), sliding is connected with for changing the first slippage slot (31) inner engine oil capacity in first slippage slot (31)
Sliding component (33), the sliding component (33) includes slipping block (331) and can slot the guiding slid in (32) in side
The outer profile of column (332), the slipping block (331) is adapted with the Internal periphery of the first slippage slot (31), and the support shaft (5) is leaned on
Nearly internal rotor (3) side is recessed with the guide groove (61) slide for guide post (332), the outer diameter of the guide post (332) and
The groove width of guide groove (61) is adapted, and the guide post (332) one end is fixedly connected with slipping block (331), and the other end passes through
(32) are slotted under sliding in guide groove (61), internal rotor (3) rotation status in side, and several guide posts (332) are in guiding
Sliding in slot (61), the guide groove (61) is circlewise arranged and the central axis in the center of circle and internal rotor (3) of guide groove (61)
And the central axis of outer rotor (4) is in the same plane, the central axis of the internal rotor (3) is located at guide groove (61)
Between the center of circle and the central axis of outer rotor (4), guide post (332) drives slipping block (331) along the length of the first slippage slot (31)
It spends under the slip state of direction, the first slippage slot (31) inner engine oil capacity constantly changes.
3. a kind of lubricating oil pump according to claim 2, it is characterised in that：The slipping block (331) and the first slippage slot
(31) rubber layer (333) for enhancing seal between slipping block (331) and the first slippage slot (31) is both provided between, it is described
Rubber layer (333) is enclosed set on slipping block (331) one weeks and is fixedly connected with slipping block (331).
4. a kind of lubricating oil pump according to claim 2, it is characterised in that：It is provided with the first garter spring in the guide groove (61)
(62) it is respectively positioned on together with the second garter spring (63), the center of circle of first garter spring (62), the second garter spring (63) and guide groove (61)
On one straight line, the internal diameter of first garter spring (62) is more than the internal diameter of the second garter spring (63), first garter spring (62) and guiding
Several first balls (64), the outer diameter and the first garter spring of first ball (64) are provided between the outer ring side wall of slot (61)
(62) it is adapted with the distance between guide groove (61) outer ring side wall, circumference of several first balls (64) along the first garter spring (62)
Direction is arranged, and several second balls (65), institute are provided between second garter spring (63) and the inner ring side wall of guide groove (61)
The distance between outer diameter and the second garter spring (63) and guide groove (61) the inner ring side wall for stating the second ball (65) are adapted, Ruo Gan
Two balls (65) along the second garter spring (63) circumferencial direction arrange, between first garter spring (62) and the second garter spring (63) away from
It is adapted from the outer diameter of guide post (332), the guide post (332) drives the first hoop under guide groove (61) interior slip state
Ring (62) is rotated with the second garter spring (63).
5. a kind of lubricating oil pump according to claim 4, it is characterised in that：First garter spring (62) and guide groove (61) are outside
The opposite sides of circle side wall is recessed with the first slot rolling (66) rolled for the first ball (64), the equal edge of first slot rolling (66)
The circumferencial direction of first garter spring (62) or guide groove (61) outer ring side wall is circlewise arranged, and the cell wall of first slot rolling (66) is horizontal
Section is arranged at camber line, and under the first garter spring (62) rotation status, first ball (64) is in two the first slot rollings
(66) it is rolled in, second garter spring (63) and the opposite sides of guide groove (61) inner ring side wall are recessed with for the second ball
(65) the second slot rolling (67) rolled, second slot rolling (67) is along the second garter spring (63) or guide groove (61) inner ring side wall
Circumferencial direction is circlewise arranged, and the cell wall cross section of second slot rolling (67) is arranged at camber line, the second garter spring (63) rotation
Turn under state, second ball (65) is in rolling in two the second slot rollings (67).
6. a kind of lubricating oil pump according to any one of claim 2-5, it is characterised in that：Slipping block (331) face
Outer rotor (4) side is recessed with the second slippage slot (3311), is slid in second slippage slot (3311) and is connected with cunning
Plate (3312) is moved, the outer profile of the sliding plate (3312) is adapted with the Internal periphery of the second slippage slot (3311), and described second
The notch opposite sides of slippage slot (3311), which is provided with, to be skidded off for stopping sliding plate (3312) out of the second slippage slot (3311)
Block (3313), be provided with spring (3314), institute between the slot bottom and sliding plate (3312) of second slippage slot (3311)
It states spring (3314) and is in compressive state, the sliding plate (3312) acts on lower and block (3313) in the elastic force of spring (3314)
It abuts against.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810752841.6A CN108561740B (en) | 2018-07-10 | 2018-07-10 | Oil pump |
Applications Claiming Priority (1)
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| CN201810752841.6A CN108561740B (en) | 2018-07-10 | 2018-07-10 | Oil pump |
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| CN108561740B CN108561740B (en) | 2020-04-10 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3620705A1 (en) * | 1986-06-20 | 1987-12-23 | Schwaebische Huettenwerke Gmbh | Internal gear wheel pump as lubricating oil pump |
| CN2588176Y (en) * | 2002-11-14 | 2003-11-26 | 太原重型机械学院 | Lubricating pump |
| CN101139988A (en) * | 2007-10-12 | 2008-03-12 | 上海师范大学 | Pin-hole type cycloid rotor pump |
| CN201748135U (en) * | 2010-08-06 | 2011-02-16 | 浙江平柴泵业有限公司 | Novel external rotor driving motor oil pump |
| CN101978167A (en) * | 2008-08-01 | 2011-02-16 | 爱信精机株式会社 | Oil pump |
| CN203835483U (en) * | 2014-01-07 | 2014-09-17 | 陈锐志 | Oil pump with anti-upwarping screw |
-
2018
- 2018-07-10 CN CN201810752841.6A patent/CN108561740B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3620705A1 (en) * | 1986-06-20 | 1987-12-23 | Schwaebische Huettenwerke Gmbh | Internal gear wheel pump as lubricating oil pump |
| CN2588176Y (en) * | 2002-11-14 | 2003-11-26 | 太原重型机械学院 | Lubricating pump |
| CN101139988A (en) * | 2007-10-12 | 2008-03-12 | 上海师范大学 | Pin-hole type cycloid rotor pump |
| CN101978167A (en) * | 2008-08-01 | 2011-02-16 | 爱信精机株式会社 | Oil pump |
| CN201748135U (en) * | 2010-08-06 | 2011-02-16 | 浙江平柴泵业有限公司 | Novel external rotor driving motor oil pump |
| CN203835483U (en) * | 2014-01-07 | 2014-09-17 | 陈锐志 | Oil pump with anti-upwarping screw |
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| CN108561740B (en) | 2020-04-10 |
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