CN107795478A - Rotor and drive shaft in oil pump - Google Patents
Rotor and drive shaft in oil pump Download PDFInfo
- Publication number
- CN107795478A CN107795478A CN201710756174.4A CN201710756174A CN107795478A CN 107795478 A CN107795478 A CN 107795478A CN 201710756174 A CN201710756174 A CN 201710756174A CN 107795478 A CN107795478 A CN 107795478A
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- CN
- China
- Prior art keywords
- rotor
- toothed region
- chimeric
- drive shaft
- outside
- 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.)
- Pending
Links
- 210000000515 tooth Anatomy 0.000 description 131
- 230000003321 amplification Effects 0.000 description 8
- 238000003199 nucleic acid amplification method Methods 0.000 description 8
- 238000003780 insertion Methods 0.000 description 6
- 230000037431 insertion Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000010349 pulsation Effects 0.000 description 2
- 230000002000 scavenging effect Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 206010055001 Hypodontia Diseases 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 206010002583 anodontia Diseases 0.000 description 1
- 210000000746 body region Anatomy 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 230000005213 hypodontia Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 201000006680 tooth agenesis Diseases 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
- F04C2/082—Details specially related to intermeshing engagement type machines or pumps
- F04C2/084—Toothed wheels
-
- 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
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0057—Driving elements, brakes, couplings, transmission specially adapted for machines or pumps
-
- 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
- F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
-
- 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
- F04C2240/20—Rotors
-
- 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
- F04C2240/60—Shafts
-
- 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
- F04C2250/00—Geometry
- F04C2250/20—Geometry of the rotor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
The present invention relates to the rotor in a kind of oil pump and drive shaft, possess：Drive shaft (A), in axial direction it is provided with and chimeric toothed region (A1) outside fill out groove portion (22) first is provided with the arbitrary embeded slot (21) selected with separating predetermined distance in the embeded slot (21) arrange from circumferentially direction and the second of equal shape of chimeric toothed region (A1) is fitted together to toothed region (A2) outside outside first with this；The first rotor (B), it, which has, is fitted together to toothed region (A1) and external tooth (3) in be provided with the toothless portion) (42) combined with filling out groove portion (22) first；And second rotor (C), it has chimeric toothed region (C1) in second of the equal shape of toothed region (B1) chimeric with described first.The first rotor and the second rotor only fill out groove portion (22) it is consistent with toothless portion) (42) when can be installed on drive shaft (A), and the phase of the external tooth (3) of the first rotor (B) and the second rotor (C) is inconsistent.
Description
Technical field
The present invention relates in axial direction possessing multiple rotors for being used to send the engine of automobile, speed changers etc. oil
The pump of row, or, among they are connected in parallel or are connected in series pump etc., can simply and efficiently it be loaded
Rotor and drive shaft assembling, and intensity and the rigidity also rotor and drive shaft in outstanding oil pump.
Background technology
All the time, develop the row of the various rotors in axial direction possessing multiple internal connecting types or circumscribed etc. and
By the oil pump that pump is connected in parallel with each other or is connected in series.In the oil pump, a drive shaft be provided with two or its more than
The rotor of row.Rotor is the rotor of the gear-type such as inscribed or external, or the rotor of vane pump type.
As one example, patent document 1 (Japanese Unexamined Patent Publication 2006-132342 publications) be present.In patent document 1, deposit
In the supply pump of duplex and the scavenging pump (scavenging pump) of tetrad.In patent document 1, in the saw of a drive shaft
Tooth (serration) portion is provided with multiple internal-gear type rotors.Especially, turn although being provided with internal-gear type in sawtooth portion
The internal rotor of son, but the number of teeth of these internal rotors is all identical quantity.
In addition, in general, in the rotation by drive shaft, multiple inscribed teeth of the drive shaft are in axial direction installed on
During wheeled rotor rotation, in order to suppress the pulsation of pump or vibration, make the phase offset in circumferential direction of internal rotor.Although phase
The offset of position is determined according to the number of teeth of internal rotor, but specifically, makes the forming position of the tooth of some internal rotor
Inconsistent with the forming position of the tooth of other internal rotor, generally more centres using adjacent tooth and tooth are to offset half tooth
The composition of amount.
Prior art literature
Patent document
Patent document 1：Japanese Unexamined Patent Publication 2006-132342 publications.
The content of the invention
The invention problem to be solved
In addition, in the case of the phase offset that setting is installed in multiple internal-gear type rotors of drive shaft, it is necessary to make this
The setting value of offset is accurate as much as possible.Moreover, the sawtooth portion of drive shaft is as from patent document 1 is visible, by multiple
Tooth is formed.Equally, in the axis hole of internal rotor, in order to be engaged with the sawtooth portion being formed by a plurality of teeth, in the axis hole
It is also formed with multiple teeth for identical quantity with the tooth in sawtooth portion.
But if as described above, the number of teeth in the respective sawtooth portion of drive shaft and internal rotor axis hole is big, due to the saw
Teeth portion (or spline) and with same quantity the number of teeth internal rotor axis hole, in the assembling of drive shaft and internal rotor
The problem of as described below point is produced in operation.First, can be easily relative to the peace to the drive shaft of an internal rotor
Dress state, by other internal rotor adjacent in the axial direction using as the level close with the appropriate phase as target
Mode is assembled into the drive shaft.
But the phase for entering to exercise two internal rotors is offset with accurate angle, and two internal rotors are installed on into driving
The operation of axle is extremely difficult.For example, even if only sawtooth portion offsets the amount of a tooth, oil pump can not also have been given play to sometimes
The performance sought.That is, as it was previously stated, in sawtooth portion, extremely more teeth be present, in order to by two internal rotors relative to the driving
Axle is installed as the phase as target, turns into extremely miscellaneous operation, the problem of reducing operating efficiency point be present.That is, special
In sharp document 1, imply that in terms of multiple internal rotors are installed on into a drive shaft, realize the composition that offset by accurate angle
It is extremely difficult.
The purpose of the present invention (technical task to be solved) is, in the row in axial direction possessing multiple rotors and
It in pump is connected in parallel with each other or is connected in series oil pump, will make to be installed on the multiple of drive shaft and meet the multiple of gear-type rotor
The phase of internal rotor is easy and offsets accurate angle and is installed by few process, to improve operating efficiency.
The solution used to solve the problem
Therefore, inventor's solution above-mentioned problem, after studying repeatedly with keen determination, by making the invention of claim 1 for such as
Rotor and drive shaft in lower oil pump and solve above-mentioned problem, rotor and drive shaft in the oil pump possess：Driving
Axle, in axial direction it is provided with the arbitrary embeded slot selected with separating predetermined distance in the embeded slot arranged from circumferentially direction
It is interior be provided with chimeric toothed region outside fill out groove portion first and with this outside first the chimeric equal shape of toothed region second outside be fitted together to tooth
Shape portion；The first rotor, its have be provided with it is described fill out the toothless portion) that groove portion combine first in chimeric toothed region and external tooth；And
Second rotor, it, which has, is fitted together to toothed region, the first rotor in the second of the equal shape of toothed region chimeric with described first
With second rotor only it is described fill out groove portion it is consistent with the toothless portion) when can be installed on the drive shaft, and described
The phase of one rotor and the bitrochanteric external tooth is inconsistent.
By making the invention of claim 2 be the rotor and drive shaft in following oil pump, solves above-mentioned problem, the oil
In the rotor and drive shaft of rotor and drive shaft in the oil pump described in claim 1 in pump, the groove portion of filling out is set
In the axial direction front end of the embeded slot.By making the invention of claim 3 be the rotor and drive shaft in following oil pump,
Solves above-mentioned problem, rotor and drive of the rotor and drive shaft in the oil pump in the oil pump described in claim 1
In moving axis, the groove portion of filling out is located at axial direction the inner of the embeded slot.By making the invention of claim 4 be following oil pump
In rotor and drive shaft, solve above-mentioned problem, the rotor and drive shaft in the oil pump are described in claim 1
In rotor and drive shaft in oil pump, the groove portion of filling out is integrally arranged throughout the axial direction of the embeded slot.
By making the invention of claim 5 be the rotor and drive shaft in following oil pump, solves above-mentioned problem, the oil
The rotor and driving of rotor and drive shaft in the oil pump described in any one of claim 1,2,3 or 4 in pump
In axle, it is equal phase to make the first rotor and the respective external tooth of second rotor and the interior chimeric toothed region
Position, and the phase of chimeric toothed region is inconsistent outside chimeric toothed region and described second outside described the first of the drive shaft.It is logical
Cross make claim 6 invention be following oil pump in rotor and drive shaft, solve above-mentioned problem, the rotor in the oil pump
And in rotor and drive shaft of the drive shaft in the oil pump described in any one of claim 1,2,3 or 4, make described
The first rotor and the phase of the respective external tooth of second rotor and the interior chimeric toothed region are inconsistent, and the drive
Chimeric toothed region is equal phase outside chimeric toothed region and described second outside described the first of moving axis.
By making the invention of claim 7 be the rotor and drive shaft in following oil pump, solves above-mentioned problem, the oil
It is described to fill out groove portion in rotor and drive shaft of the pump in the oil pump described in any one of claim 1,2,3,4,5 or 6
It is set to since the bottom surface of the embeded slot to the height of teeth size direction substantially middle part.By the hair for making claim 8
Bright is the rotor and drive shaft in following oil pump, solves above-mentioned problem, the oil pump is in claim 1,2,3,4,5 or 6
Any one described in oil pump in rotor and drive shaft in, the groove portion of filling out is set to since the bottom surface of the embeded slot
Height at the top of teeth size direction.
Invention effect
In the invention of claim 1, the first rotor and the second rotor are fitted together to toothed region and the only outside the first of drive shaft
Being fitted together to outside two when toothed region is respective to fill out groove portion and the first rotor and the chimeric respective toothless portion) of the second rotor turns into appropriate phase
The installation of position.Each suitably installed moreover, being fitted together to toothed region outside chimeric toothed region and second outside relative to the first of drive shaft
The first rotor and bitrochanteric external tooth phase it is inconsistent, can be used in suppress multiple row type oil pump operating when
The construction of pulsation and vibration is extremely simple.
It is outer by the chimeric toothed region outside first from drive shaft and second in the invention of claim 2
That closes the axial direction front end setting of the embeded slot arbitrarily selected in multiple embeded slots that toothed region is formed respectively fills out groove portion, structure
Into with the position to bit function.In addition, it will be fitted together to out of the first rotor first in toothed region and the bitrochanteric secondth
The interior chimeric tooth excision arbitrarily selected in the chimeric respective multiple interior chimeric teeth of toothed region makes the hypodontia using as toothless portion)
Combined with the groove portion of filling out in portion.
Moreover, when chimeric toothed region is installed on outside the first of drive shaft chimeric toothed region in first by the first rotor,
And in by the bitrochanteric secondth be fitted together to toothed region be installed on outside the second of drive shaft be fitted together to toothed region when, by the way that groove will be filled out
Portion be located at embeded slot axial direction front end, when filling out the position consistency of groove portion and toothless portion) beyond in the case of, fill out groove portion and
The front end of interior chimeric tooth abuts, and can not be initially inserted into from the first rotor and bitrochanteric insertion initial stage, can be in the early stage
Stage finds the inserting error of unsuitable opening position, it is possible to increase operating efficiency.In the invention of claim 3, pass through institute
State and fill out groove portion located at axial direction the inner of the embeded slot, it can be found that the first rotor and the second rotor can not be completely carried out
Insertion, in the inserting error of unsuitable opening position, it is possible to increase operating efficiency.
In the invention of claim 4, by using it is described fill out groove portion throughout the embeded slot axial direction integrally
The composition of setting, when manufacturing drive shaft, when chimeric toothed region is formed outside chimeric toothed region and second outside to first,
Because front end and the inner axial direction with embeded slot of filling out groove portion are equal length, thus can by forming machine integratedly into
Shape, manufacture efficiency are improved, can provided with low price.
In the invention of claim 5, by making the first rotor and the respective external tooth of the second rotor and interior chimeric toothed region
For equal phase, and the phase of chimeric toothed region is inconsistent outside chimeric toothed region and second outside the first of drive shaft, can
Make the first rotor and the second rotor roughly the same, the manufacture of rotor can be simplified, to improve manufacture efficiency.
In the invention of claim 6, by making the first rotor and the respective external tooth of the second rotor and interior chimeric toothed region
Phase it is inconsistent, and chimeric toothed region is equal phase outside chimeric toothed region and second outside the first of drive shaft, can
Simplify the manufacture of drive shaft, to improve manufacture efficiency.
In the invention of claim 7, by fill out groove portion use since the bottom surface of embeded slot to teeth size direction substantially
The height of middle part, toothless portion) can also leave fraction of interior chimeric tooth, can further improve chimeric toothed region outside first
With first in be fitted together to and be fitted together to the inlay resultant force of toothed region outside toothed region and second in chimeric toothed region and second.
In the invention of claim 8, by be used as fill out groove portion use since the bottom surface of embeded slot to teeth size direction
Rotor and drive shaft in the oil pump of the height at top, can make to be fitted together in chimeric toothed region and first outside first toothed region with
And the composition of chimeric toothed region is more simple shape in chimeric toothed region and second outside second.
Brief description of the drawings
In Fig. 1, (A) is the longitudinal side sectional view of the invention with the first embodiment for filling out groove portion, and (B) is (A)
Y1-Y1 to regarding amplification sectional view, (C) be the Y2-Y2 of (A) to regarding amplification sectional view, (D) is (α) portion enlarged drawing of (B), and (E) is
(C) (β) portion enlarged drawing；
In fig. 2, (A) is chimeric toothed region position and first outside first of the drive shaft with the first embodiment for filling out groove portion
The stereogram of the state of the separation of rotor, (B) is (γ) portion enlarged drawing of (A), (C) is to show to fill out the first embodiment party of groove portion
The major part amplification sectional view of formula and the embodiment of toothless portion), (D) are the drivings with the first embodiment for filling out groove portion
Axle and the first rotor and the second rotor are contained in the longitudinal side sectional view of the oil pump in the state of pump case, and (E) is to show to accommodate
(or turn in the first rotor (or second rotor) of the first rotor (or second rotor) of pump case and the first outer rotor outside second
Son) composition longitudinal side sectional view, (F) is the figure from pump case in terms of the inner surface side of the first pump case body region；
In figure 3, (A) be outside first of the drive shaft with the first embodiment for filling out groove portion chimeric toothed region with axial side
To orthogonal sectional view, (B) be the Y3-Y3 of (A) to regarding expanded view, (C) be fitted together in the first of the first rotor toothed region with
The orthogonal sectional view of axial direction, (D) be the Y4-Y4 of (C) to regarding expanded view, (E) is to show suitably to be fitted together to be mounted with first
It is fitted together to the schematic end view of the state of toothed region in outer chimeric toothed region and first, (F) is to show not to be fitted together to suitably installation the
The schematic end view of the state of toothed region is fitted together to outside one in chimeric toothed region and first；
In Fig. 4, (A) is the phase pass that toothed region and external tooth are fitted together in show the first rotor in second embodiment first
The front view of system, (B) are to show that toothed region and the phase of external tooth are fitted together in the bitrochanteric secondth in second embodiment closes
The front view of system；
In Figure 5, (A) the first rotor and the quantity of bitrochanteric external tooth is set to 8 embodiment front view,
(B) be the second rotor and the quantity of bitrochanteric external tooth is set to 8 embodiment front view；
In figure 6, (A) is the schematic diagram for the composition that the present invention is applied to external gear pump, and (B) is chimeric toothed region outside first
Vertical with the first rotor cuts front view, and (C) is that chimeric toothed region and bitrochanteric indulge cut front view outside second；
In the figure 7, (A) is the schematic diagram for the composition that the present invention is applied to vane pump, and (B) is chimeric toothed region and the outside first
The vertical of one rotor cuts front view, and (C) is that chimeric toothed region and bitrochanteric indulge cut front view outside second；
In fig. 8, (A) is the major part of chimeric toothed region outside first of the drive shaft with the second embodiment for filling out groove portion
Amplification stereogram, (B) are in this second embodiment orthogonal with axial direction of chimeric toothed region outside the first of drive shaft
Sectional view, (C) be the Y5-Y5 of (B) to regarding expanded view, (D) be show suitably to be fitted together to be mounted with outside first chimeric toothed region and
The schematic end view of the state of toothed region is fitted together in first；
In fig.9, (A) is the longitudinal side sectional view of the invention with the 3rd embodiment for filling out groove portion, and (B) is the Y6-Y6 of (A)
To regarding amplification sectional view, (C) be the Y7-Y7 of (A) to regarding amplification sectional view, (D) is (δ) portion enlarged drawing of (B), and (E) is (C)
(ε) portion enlarged drawing；
In Fig. 10, (A) is chimeric toothed region position and the outside first of the drive shaft with the 3rd embodiment for filling out groove portion
The stereogram of the state of the separation of one rotor, (B) are (ζ) portion enlarged drawings of (A), and (C) is to show that the fill out groove portion the 3rd implements
The major part amplification sectional view of mode and the embodiment of toothless portion), (D) are to show to fill out the 3rd embodiment of groove portion and lack
The major part amplification sectional view of the other embodiment of teeth portion；
In fig. 11, (A) be outside first of the drive shaft with the 3rd embodiment for filling out groove portion chimeric toothed region with axial direction
The orthogonal sectional view in direction, (B) be the Y8-Y8 of (A) to regarding expanded view, (C) is that toothed region is fitted together in the first of the first rotor
The sectional view orthogonal with axial direction, (D) be the Y9-Y9 of (C) to regarding expanded view, (E) is to show suitably to be fitted together to be mounted with
The schematic end view of the state of toothed region is fitted together to outside one in chimeric toothed region and first, (F) is to show not to be fitted together to installation suitably
The schematic end view of the state of toothed region is fitted together to outside first in chimeric toothed region and first.
Embodiment
Hereinafter, based on brief description of the drawings embodiments of the present invention.The present invention be in axial direction possess it is multiple inscribed or outer
Connect the drive shaft in the oil pump of rotor used in the rotor or vane pump of formula and multiple rotors.The present invention is mainly by drive shaft
A, the first rotor B, the second rotor C, pump case D are formed.Moreover, they are installed on drive shaft in the first rotor B and the second rotor C
In the state of A, the first rotor B is contained in pump case D the first rotor room 51, and the second rotor C is contained in second turn of pump case D
Seed cell 61, to form oil pump.The first rotor B together constitutes with main pump, the second rotor C and the second rotor chamber 61 with the first rotor room 51
Together constitute with auxiliary pump.
Drive shaft A realizes the aftermentioned effect in axial direction supporting the first rotor B and the second rotor C.Drive shaft A is as schemed
Shown in 2 (A), it is made up of the first axle part 1a, the second axle part 1b and intermediate shaft portion 1c.The first axle part 1a and the second axle part 1b
Positioned at the both ends of drive shaft A axial direction.In drive shaft A, the intermediate shaft portion 1c diameter of axle is maximum, the first axle part 1a and second
Axle portion 1b is formed as the external diameter smaller than the intermediate shaft portion 1c.The first axle part 1a and intermediate shaft portion 1c boundary member formed with
Chimeric toothed region A1, is fitted together to toothed region A2 outside the second axle part 1b and intermediate shaft portion 1c boundary member are formed with second outside first
(reference picture 1 (A)).
Chimeric toothed region A1 is in axial direction prolonged in the periphery of the chimeric axle portion 2 of substantially cylinder shape shaft outside described first
Multiple embeded slots 21 for stretching, 21 ... the part (reference picture 1) that circumferentially direction equally spaced arranges and formed.Multiple chimeric
Groove 21,21 ... be arranged to make up, separating the set arbitrary embeded slot 21 for being spaced selection formed with filling out (the ginseng of groove portion 22
According to Fig. 1 (A), Fig. 2).In addition, there are multiple, these arbitrary embeded slots in the selected arbitrary embeded slot 21 of chimeric axle portion 2
21 equally spaced arrange along the periphery of chimeric axle portion 2.
Groove portion 22 is filled out located at selected arbitrary embeded slot 21 (reference picture 1 (A), Fig. 2 (A), (B)).In addition, driving
The respective embeded slots 21 of chimeric toothed region A2 outside chimeric toothed region A1 and second outside the first of axle A, exist referred to as front and
The part of interior side.Front refers to positioned at the part of the side close with drive shaft A axial direction both ends.It is in addition, chimeric
The interior side of groove 21 be located at the side close with drive shaft A axial direction center part (reference picture 1 (A), Fig. 2 (A),
(B))。
Moreover, by by foregoing arbitrary embeded slot 21 and located at the fill out that groove portion 22 forms first outer of the embeded slot 21
Chimeric toothed region A2 outside toothed region A1 and second is closed, with chimeric toothed region A1 and first outside optimal state installation described first
It is each in chimeric toothed region A2 and the second rotor C outside rotor B and described second, also, the groove portion 22 of filling out is to play to make
For the part of the effect for the contraposition part for preventing from installing by mistake.Moreover, numerous embodiments be present in groove portion 22 is filled out.First,
The first embodiment for filling out groove portion 22 is from the position of front end towards axle along the axial direction of the foregoing embeded slot 21 arbitrarily selected
Formed to the middle part in direction, and relative to the orthogonal wall-like position (reference picture 2 of the axial direction of the embeded slot 21
(B))。
Fill out set model of the first embodiment in the arbitrarily front of the axial direction of the embeded slot 21 of groove portion 22
Enclose interior formation.Specifically, formed in the given area of the front end near sites of the axial direction of embeded slot 21.Fig. 3
(A), (B) is that the formation for showing chimeric toothed region A1 outside first has the figure of the position for filling out groove portion 22 and its expanded view, shows and fills out
Groove portion 22 is formed in the axial direction front end of embeded slot 21.Though in addition, being not shown, the groove portion 22 of filling out is located at embeded slot sometimes
21 axial direction middle part.In this case, groove portion 22 is filled out also preferably before the close axial direction of embeded slot 21
The position at end.
Fill out groove portion 22 to be integrally formed with embeded slot 21, or formed from drive shaft A by different parts, and pass through welding
Deng fixation.Then, in the second embodiment for filling out groove portion 22, the axle for filling out groove portion 22 throughout the arbitrary embeded slot 21
Set (reference picture 8 (A), (B), (C)) to direction entirety.In this second embodiment, drive shaft A composition is with filling out groove portion
Drive shaft A in 22 first embodiment is roughly the same.The arbitrary embeded slot 21 filled out in the second embodiment of groove portion 22
It is equal with the selected arbitrary embeded slot 21 in the foregoing first embodiment for filling out groove portion 22.Fill out groove portion 22 as it was previously stated,
Play the aftermentioned effect for making the first rotor B and the second rotor C be appropriately mounted at drive shaft A and preventing mistake from installing.
Thus, fill out groove portion 22 for can be intended to insert provided with this fill out groove portion 22 embeded slot 21 the first rotor B and the
The size for the degree that two rotor C interior chimeric tooth 41 abuts.Specifically, the groove portion 22 of filling out is from the bottom surface of embeded slot 21
Start to be set to arbitrary height on teeth size direction, specifically, exist and be set to until the substantially middle part of embeded slot 21
Height (reference picture 1 (D), Fig. 2 (B), (C)), or, be set to since the bottom surface of the embeded slot 21 until teeth size direction
The height (reference picture 2 (D)) at top fills out groove portion 22.
Be fitted together to outside described first in toothed region A1, substantially cylindrical shape chimeric axle portion 2 periphery in axial direction
The embeded slot 21 of extension, 21 ... circumferentially direction is equally spaced formed with multiple.Multiple embeded slots 21,21 ... in, it is adjacent
It is the position formed with tooth form between the embeded slot 21,21 connect.The position of the tooth form is referred to as the (reference picture 1 of odontoid portion 23
(B)).That is, it is the position that forms embeded slot 21 and odontoid the portion 23 circumferentially gear shape that direction alternately configures.
Chimeric toothed region A1, the second total number for being fitted together to the respective embeded slots 21 of toothed region A2 outside are preferably outside described first
Aftermentioned the first rotor B and the respective external tooths 3 of the second rotor C, 3 ... the number of teeth integral multiple quantity.From the of drive shaft A
It is on the outside of chimeric toothed region A1 axial direction that the first rotor B seating side is embedding towards chimeric toothed region A1 insertions outside first outside one
Close.Equally, it is fitted together to the second rotor C seating side outside the second of drive shaft A on the outside of toothed region A2 axial direction towards the
Chimeric toothed region A2 insertions are chimeric outside two.
The first rotor B and the second rotor C is the gear-type rotor or use used as annulus or external gear
In the rotor of vane pump.Respectively, used in the first rotor B in annulus as internal rotor, it is combined into
First outer rotor 81 and similarly on the second rotor C in annulus also serve as internal rotor use, it is combined into
Second outer rotor 82, and together it is installed on pump case D (reference picture 2 (D), (E)) with the drive shaft A.
Hereinafter, the first rotor B and second turn are illustrated as the gear-type rotor as annulus or external gear
Sub- C.The first rotor B is formed on the outer periphery multiple external tooths 3,3..., and is centrally formed with first chimeric tooth in radial direction
Shape portion B1.The first rotor B be external tooth 3 shape in the case of as annulus for cycloidal curve or with cycloidal curve substantially
The rotor of approximate castellated shape.
On being fitted together to toothed region B1 in first, in the inner circumferential side for the embedded hole 4 that diameter center position is formed, passed through along axis hole
The interior chimeric tooth 41 of direction extension is worn with being set to chimeric toothed region A1 21 identical quantity of embeded slot outside described first, moreover,
The interior chimeric tooth 41 arbitrarily selected therefrom is removed, and the removed part is referred to as into toothless portion) 42.The toothless portion) 42 with
Chimeric toothed region A1's fills out 22 identical quantity of groove portion and is equally spaced formed outside described first.Interior chimeric tooth 41 and toothless portion) 42
Position relationship is with the embeded slot 21 in chimeric toothed region A1 outside first and provided with position relationship of embeded slot 21 for filling out groove portion 22 etc.
With (reference picture 2 (C), (D)).
Toothless portion) 42 is such as to be removed the position to be formed completely by interior chimeric tooth 41 shown in Fig. 2 (C).In addition, such as
Shown in Fig. 2 (D), toothless portion) 42 is formed in a manner of the part residual of tooth 41 can be fitted together within.Toothless portion) 42 is set to be interior
In the case that chimeric tooth 41 remains the composition of a part, groove portion 22 is filled out with chimeric toothed region A1 outside the first of the drive shaft A
Be set to since bottom surface to the height among teeth size to fill out groove portion 22 corresponding.In this case, the residual of toothless portion) 42
Interior chimeric tooth 41 can not interferingly insert embeded slot 21 with filling out groove portion 22.
In embodiments, in the first rotor B, the number of teeth for making the external tooth 3 is 6, and makes to be fitted together to tooth form in first
Portion B1 interior chimeric tooth 41,41 ... quantity be 18.Moreover, being fitted together in this 18 in tooth 41, (isogonism at equal intervals is separated
Degree) arbitrarily remove chimeric tooth 41 in 3, using them as toothless portion) 42.The toothless portion) 42 passes through position and the driving
Outside the first of axle A in chimeric toothed region A1 to fill out the position of groove portion 22 consistent, will not interfere, tooth form can be fitted together to outside first
(reference picture 1 (B), (D)) is fitted together in the state of chimeric toothed region B1 is fully-inserted in portion A1 and first.
In addition, toothed region C1 and chimeric toothed region B1 in the first of the first rotor B are fitted together in the second of the second rotor C
For same composition, in addition to the size of thickness direction, the second rotor C is the construction substantially the same with the first rotor B.And
And toothed region B1 is fitted together in the first of the first rotor B by chimeric to be installed on chimeric toothed region outside the first of the drive shaft A
Toothed region C1, which is fitted together to, in the second of A1 (reference picture 1 (A), (D)), the second rotor C is installed on the drive shaft A's by chimeric
Chimeric toothed region A2 (reference picture 1 (A), (E)) outside second.
Be fitted together to outside the first of the drive shaft A in the first of toothed region A1 and the first rotor B be fitted together to toothed region B1 that
While this is chimeric, the first rotor B is installed on chimeric toothed region A1 outside first.Toothed region A1 and first is now fitted together to outside first
In interior chimeric toothed region B1, relative to the embeded slot 21 for being not provided with filling out groove portion 22, interior chimeric tooth 41 is fitted together in the way to insert, phase
For chimeric provided with the embeded slot 21 for filling out groove portion 22, only toothless portion) 42.The toothless portion) 42, which is completely inserted into be embedded in be provided with, fills out groove
The embeded slot 21 in portion 22, under such a state, the first rotor B first in be fitted together to toothed region B1 be appropriately mounted at drive shaft A
First outside chimeric toothed region A1 (reference picture 1 (B), (D), Fig. 2 (C), Fig. 3 (E), Fig. 8 (D)).
Moreover, filling out the embeded slot 21 of groove portion 22 relative to being provided with for chimeric toothed region A1 outside first, tooth form is fitted together in first
Portion B1 interior chimeric tooth 41 can not insert chimeric.Particularly in the first embodiment for filling out groove portion 22, because this fills out groove portion 22
Located at the axial direction front end of embeded slot 21, if therefore the toothed region B1 interior chimeric embeded slot 21 to be inserted of tooth 41 is fitted together in first,
Then the axial direction end of interior chimeric tooth 41 is abutted with filling out groove portion 22, and (reference picture 3 can not be just inserted since the initial stage
(F))。
That is, it is to be constructed as below：As long as it is not fitted together to toothed region A1 all other institutes for being not provided with filling out groove portion 22 outside with first
Have embeded slot 21,21 ... and be fitted together in first toothed region B1 all interior chimeric teeth 41,41 ... it is completely the same, and fill out groove
Portion 22 mode the driven in registry axle A and the first rotor B consistent with the position (phase) of toothless portion) 42 position (phase), just can not
The first rotor B is installed on to chimeric toothed region A1 outside the first of drive shaft A.
Relative to the drive shaft A the first rotor B suitably installed external tooth 3,3 ... and the second rotor C external tooth 3,
3rd ... phase is inconsistent composition.This is inconsistent refers to, the first rotor B external tooth 3,3 ... and the second rotor C
External tooth 3,3 ... be not aligned to a column-shaped in axial direction each other, but as the arrangement offset from each other.In the inconsistent shape
Under state, the composition that the first rotor B and the second rotor C external tooth 3,3 offset the amount of half tooth separately from each other is preferable (reference picture
1(A)、(C))。
The skew of the amount of half tooth in the external tooth 3 refers to that the second rotor C external tooth 3 is located at the first rotor B adjoining
Phase (reference picture 1 (C)) among external tooth 3,3.In addition, the centre of adjacent external tooth 3,3 is not only the angle of adjacent external tooth 3,3
Spend direction center, also comprising the center near.
In order to export in drive shaft A the first rotor B and the second rotor C is appropriately mounted at each external tooth 3,
3rd ... the angle, θ of the amount of phase offset half tooth, it is applicable below equation.
θ=(360/n) × (1/2)
Here, n is the quantity of the first rotor B and the respective external tooths 3 of the second rotor C.So as to make the first rotor B and the
In the case that the quantity of the respective external tooths 3 of two rotor C is 6, if being applied to above-mentioned formula, the deviation angle θ of phase is 30 degree.
Then, illustrate below for make the first rotor B external tooth 3,3 ... and the second rotor C external tooth 3,3 ...
The embodiment of the inconsistent composition of phase.Here, illustrate the inconsistent of phase as the amount of skew half tooth.First, exist
During first is formed, make the phase of chimeric toothed region A2 outside chimeric toothed region A1 and second outside first in drive shaft A inconsistent, and
It is equal shape to make the first rotor B and the second rotor C.
In the present note, in order to specific, if the quantity of the first rotor B and the respective external tooths 3 of the second rotor C is 6.And
And in order that the external tooth 3 in the first rotor B and the second rotor C offsets from each other the amount of half tooth (also comprising substantially half tooth
Amount), by being set to 30 degree relative to the first rotor B angle, θs offset suitable for the phase of above-mentioned formula, the second rotor C
(reference picture 1 (C)).
In order that obtain as described above, making to be fitted together to toothed region A2 outside chimeric toothed region A1 and second outside first in drive shaft A
Phase it is inconsistent.Make the phase of chimeric toothed region A2 outside chimeric toothed region A1 and second outside first in drive shaft A inconsistent
Refer to, with chimeric toothed region outside the position for being provided with the fitting portion 21 for filling out groove portion 22 and second in first outside chimeric toothed region A1
The mode that being provided with A2 fills out the position skew of groove portion 22 is set (reference picture 1 (E), (D)).
Here, if the number for making chimeric toothed region A1 embeded slot 21 outside first is 18, and the number for making to fill out groove portion 22 is 3
It is individual, then the groove portion 22 of filling out equally spaced configured in toothed region A1 is fitted together to outside first and is set every 120 ° of ground.It is outer on second
Close toothed region A2, and the composition same with chimeric toothed region A1 outside described first.
Thus, chimeric toothed region A2 fills out groove portion 22 outside the chimeric toothed region A1 position for filling out groove portion 22 and second outside first
Position set in a manner of phase mutually differs 30 degree.Thus, if the first rotor B is appropriately mounted at into the of drive shaft A
Chimeric toothed region A1 outside one, and the second rotor C is appropriately mounted at chimeric toothed region A2 outside second, then the first rotor B's is outer
The rotor C of tooth 3 and second external tooth 3 can be set in a manner of offsetting from each other the phase of amount of half tooth (reference picture 1 (B),
(C))。
Tooth is fitted together in addition, being fitted together to toothed region B1 in by the first of the first rotor B and being fitted together to outside be installed on drive shaft A first
During shape portion A1, if the chimeric toothed region A1 position for filling out in groove portion 22 and first toothless portion) 42 for being fitted together to toothed region B1 is not outside first
Unanimously, then chimeric toothed region A1 outside toothed region B1 insertions first can not will be fitted together in first.That is, by the first rotor B suitably
When being installed on chimeric toothed region A1 outside the first of drive shaft A, the first rotor B external tooth 3,3 ... phase (angle) can be with
It is always that the mode of same phase (angle) is set relative to drive shaft A.This is in the case of drive shaft A and the second rotor C
It is same.
Then, illustrate below for make the first rotor B external tooth 3,3 ... and the second rotor C external tooth 3,3 ...
The second of the inconsistent composition of phase is formed.In this composition, the inconsistent amount of phase can increase and decrease, but conduct as an example
The amount for offseting half tooth illustrates.In addition, the quantity on the first rotor B and the second rotor C external tooth 3, also with the first structure
Into same, 6 are set to.
In second is formed, make to be fitted together to chimeric tooth in the second of toothed region B1 and the second rotor C in the first of the first rotor B
Shape portion C1 phase offset, and make the in drive shaft A first phase for being fitted together to toothed region A2 outside chimeric toothed region A1 and second outside
It is identical.Specifically, chimeric toothed region B1 each toothless portion) 42 in the position and first of each external tooth 3 in the first rotor B is made
Phase and the phase of chimeric toothed region C1 each toothless portion) 42 in the position and second of each external tooth 3 in the second rotor C are inconsistent.
That is, make to be fitted together in the toothed region B1 position of toothless portion) 42 and the second of the second rotor C in the first of the first rotor B
The phase of 30 degree of the skew of the position of chimeric toothed region C1 toothless portion) 42.Thus, if the first rotor B is appropriately mounted at into drive
Chimeric toothed region A1 outside the first of moving axis A, and the second rotor C is appropriately mounted at chimeric toothed region A2 outside second, then first
The rotor B rotor C of external tooth 3 and second external tooth 3 can be set in a manner of offsetting from each other the phase of amount of half tooth.
Fig. 5 be set the first rotor B and the second rotor C external tooth 3,3 ... as the embodiment of 8.Here, drive shaft A
First outside the chimeric toothed region A1 quantity of embeded slot 21 be set to 24, the quantity for filling out groove portion 22 is set to 4, in circumferential direction
On every 90 degree set.In addition, it is respective interior chimeric that toothed region B1 and the second rotor C is fitted together in the first of the first rotor B
The quantity of tooth 41 is 24, and the quantity of toothless portion) 42 is 4.In this embodiment, the first rotor B and the second rotor C are made
In respective external tooth 3 quantity be 8 in the case of, the angle, θ of the phase offset of the amount of half tooth is if aforementioned formula is used
22.5 degree.
Fig. 6 is the figure that the drive shaft A in the present invention, the first rotor B and the second rotor C are applied to gear pump.First
Rotor B and the second rotor C sets the quantity of external tooth 3 as 10.The number of chimeric toothed region A1 embeded slot 21 outside the first of drive shaft A
Amount is set to 20, and the quantity for filling out groove portion 22 is set to 5.In addition, toothed region B1 and second turn are fitted together in the first of the first rotor B
The quantity of the sub- respective interior chimeric teeth 41 of C is 20, and the quantity of toothless portion) 42 is 5.In this embodiment, first turn is made
In the case that the quantity of respective external tooth 3 is 10 in sub- B and the second rotor C, if the angle, θ of the phase offset of the amount of half tooth makes
It is then 18 degree with aforementioned formula.
Fig. 7 is the figure that the drive shaft A in the present invention, the first rotor B and the second rotor C are applied to vane pump.First
Rotor B and the second rotor C sets the quantity of external tooth 3 as 12.Here, external tooth 3 refers to blade, in the first rotor B and second
Rotor C rotor body is formed with for the travelling insertion (Swam Inserted of the blade) blade groove.Chimeric tooth form outside the first of drive shaft A
The quantity of portion A1 embeded slot 21 is set to 24, and the quantity for filling out groove portion 22 is set to 6.In addition, it is fitted together in the first of the first rotor B
The quantity of the respective interior chimeric teeth 41 of toothed region B1 and the second rotor C is 24, and the quantity of toothless portion) 42 is 6.In the reality
Apply in mode, in the case where the quantity of the respective external tooth 3 as blade in making the first rotor B and the second rotor C is 12, half
The angle, θ of the phase offset of the amount of individual tooth is 15 degree if aforementioned formula is used.
Then, pump case D is illustrated.Pump case D is mainly by the first pump case 5, the second pump case 6, the structure of spacing block 7
Into.First pump case 5 has the first rotor room 51, and the second pump case 6 has the second rotor chamber 61 (reference picture 2 (E), (F)).And
And spacing block 7 is placed in centre, the first pump case 5 and the second pump case 6 are configured in its both sides, and they are engaged.Thus,
In pump case D-shaped into the rotor chamber 61 of the first rotor room 51 and second as closing space.
The first rotor B is contained in the first rotor room 51, and the second rotor C is contained in the second rotor chamber 61.In addition,
One pump case 5 and the second pump case 6 and spacing block 7, be respectively formed with the axle supported hole 52 for axle support drive shaft A, 62,
72.In the first rotor room 51 of the first pump case 5, formed with the first inhalation port 53 and the first discharge port 54.Similarly, exist
Second rotor chamber 61 of the second pump case 6, formed with the second inhalation port 63 and the second discharge port 64.In addition, the first pump
The phase of first inhalation port 53 of housing 5 and the second inhalation port 63 of the second pump case 6 is consistent, similarly, the first pump
The phase of first discharge port 54 of housing 5 and the second discharge port 64 of the second pump case 6 is consistent (reference picture 2 (E)).
In the oil pump based on pump case D, drive shaft A, the first rotor B and the second rotor C, the first pump case 5 and
One rotor B is used as main pump, and the second pump case 6 and the second rotor C are used as auxiliary pump.In pump case D, although not shown but formed with suction
Stream and discharge duct, suction passage branch in pump case D are respective with the first inhalation port 53 and the second inhalation port 63
The effect of oil is sent in connection to play.
Next, explanation fills out the 3rd embodiment of groove portion 22.In the 3rd embodiment, drive shaft A composition with
It is same to fill out first embodiment and the second embodiment of groove portion 22, the first axle part 1a and the second axle part 1b are formed as than described
External diameter small intermediate shaft portion 1c.Toothed region is fitted together to outside the first axle part 1a and intermediate shaft portion 1c boundary member are formed with first
A1, toothed region A2 (reference picture 9 (A)) is fitted together to outside the second axle part 1b and intermediate shaft portion 1c boundary member are formed with second.
In the third embodiment, outside first outside chimeric toothed region A1 and second chimeric toothed region A2 composition also with it is preceding
State fill out groove portion 22 first embodiment it is roughly the same, be the periphery of the chimeric axle portion 2 of substantially cylinder shape shaft vertically side
Multiple embeded slots 21 to extension, 21 ... the part (reference picture 9) that circumferentially direction equally spaced arranges and formed.In addition,
Multiple embeded slots 21,21 ... be arranged to make up, separate the set arbitrary embeded slot 21 for being spaced selection formed with
Fill out groove portion 22 (reference picture 9 (A), Figure 10).In addition, the selected arbitrary embeded slot 21 of chimeric axle portion 2 exist it is multiple, these
Arbitrary periphery of the embeded slot 21 along chimeric axle portion 2 equally spaced arranges.
It is from the position of the inner towards axial direction along the axial direction of the embeded slot 21 arbitrarily selected to fill out groove portion 22
Middle part formed, and relative to the orthogonal wall-like position of the axial direction of the embeded slot 21 (reference picture 10 (B)).Change
Yan Zhi, formed in the given area of the interior side of the axial direction of the arbitrary embeded slot 21.Specifically, in embeded slot
The given area formation of the inner near sites of 21 axial direction.Figure 11 (A), (B) are to show chimeric tooth form outside first
Portion A1 formation has the figure of the position for filling out groove portion 22 and its expanded view, shows that filling out groove portion 22 forms in the axial direction of embeded slot 21
Direction is inner.Though in addition, it is not shown, the axial direction middle part filled out groove portion 22 and be located at embeded slot 21 sometimes.
Groove portion 22 is same, and being can be with being intended to insert with filling out in first embodiment for groove portion 22 of filling out in 3rd embodiment
The size for the degree that tooth 41 abuts is fitted together in the first rotor B and the second rotor C provided with the embeded slot 21 for filling out groove portion 22
.Specifically, the groove portion 22 of filling out of the 3rd embodiment is set to appoint since the bottom surface of embeded slot 21 on teeth size direction
The height of meaning, the height (reference picture 9 (D), Figure 10 (B), (C)) being set to until the substantially middle part of embeded slot 21 be present, or
Person, the height (reference picture 10 (D)) being set to since the bottom surface of the embeded slot 21 at the top of teeth size direction fill out groove portion
22。
Moreover, filling out the embeded slot 21 of groove portion 22 relative to being provided with for chimeric toothed region A1 outside first, tooth form is fitted together in first
Portion B1 interior chimeric tooth 41 can not insert chimeric.The axial direction front end of embeded slot 21 is located at due to filling out groove portion 22, therefore in first
If the chimeric toothed region B1 interior chimeric embeded slot 21 to be inserted of tooth 41, the axial direction end of interior chimeric tooth 41 is with filling out groove portion 22
Abut, can not insert (reference picture 11 (F)).
That is, it is to be constructed as below：As long as it is not fitted together to toothed region A1 all other institutes for being not provided with filling out groove portion 22 outside with first
Have embeded slot 21,21 ... and be fitted together in first toothed region B1 all interior chimeric teeth 41,41 ... it is completely the same, and fill out groove
Portion 22 mode the driven in registry axle A and the first rotor B consistent with the position (phase) of toothless portion) 42 position (phase), just can not
The first rotor B is installed on to chimeric toothed region A1 outside the first of drive shaft A.
Symbol description
A drive shafts
Chimeric toothed region outside A1 first
Chimeric toothed region outside A2 second
21 embeded slots
22 fill out groove portion
B the first rotors
Toothed region is fitted together in B1 first
The rotors of C second
Toothed region is fitted together in C1 second
3 external tooths
42 toothless portion)s
Claims (8)
1. rotor and drive shaft in a kind of oil pump, it is characterised in that possess：Drive shaft, in axial direction it is provided with from edge
It is outer provided with fill out groove portion first in arbitrary embeded slot that the embeded slot of circumferential direction arrangement selects with separating predetermined distance
Close toothed region and with this outside first the chimeric equal shape of toothed region second outside be fitted together to toothed region；The first rotor, it, which has, sets
Have with it is described fill out the toothless portion) that groove portion combines first in be fitted together to toothed region and external tooth；And second rotor, its have with it is described
It is fitted together in first in the second of the equal shape of toothed region and is fitted together to toothed region, the first rotor and second rotor is only described
Fill out groove portion it is consistent with the toothless portion) when can be installed on the drive shaft, and the first rotor and described bitrochanteric
The phase of the external tooth is inconsistent.
2. rotor and drive shaft in oil pump according to claim 1, it is characterised in that the groove portion of filling out is located at described
The axial direction front end of embeded slot.
3. rotor and drive shaft in oil pump according to claim 1, it is characterised in that the groove portion of filling out is located at described
The axial direction of embeded slot is inner.
4. rotor and drive shaft in oil pump according to claim 1, it is characterised in that the groove portion of filling out is throughout described
The axial direction of embeded slot is integrally arranged.
5. the rotor and drive shaft in oil pump according to any one of claim 1,2,3 or 4, it is characterised in that
It is equal phase to make the first rotor and the respective external tooth of second rotor and the interior chimeric toothed region, and
The phase of chimeric toothed region is inconsistent outside chimeric toothed region and described second outside described the first of the drive shaft.
6. the rotor and drive shaft in oil pump according to any one of claim 1,2,3 or 4, it is characterised in that
Make the first rotor and the phase of the respective external tooth of second rotor and the interior chimeric toothed region inconsistent, and
Chimeric toothed region is equal phase outside chimeric toothed region and described second outside described the first of the drive shaft.
7. the rotor and drive shaft in oil pump according to any one of claim 1,2,3,4,5 or 6, its feature exist
In the groove portion of filling out is set to since the bottom surface of the embeded slot to the height of teeth size direction substantially middle part.
8. the rotor and drive shaft in oil pump according to any one of claim 1,2,3,4,5 or 6, its feature exist
In the groove portion of filling out is set to since the bottom surface of the embeded slot to the height at the top of teeth size direction.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016170392 | 2016-08-31 | ||
| JP2016170391 | 2016-08-31 | ||
| JP2016-170392 | 2016-08-31 | ||
| JP2016-170391 | 2016-08-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107795478A true CN107795478A (en) | 2018-03-13 |
Family
ID=61532253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710756174.4A Pending CN107795478A (en) | 2016-08-31 | 2017-08-29 | Rotor and drive shaft in oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107795478A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000199413A (en) * | 1998-12-28 | 2000-07-18 | Honda Motor Co Ltd | Engine oil pump |
| JP2006132342A (en) * | 2004-11-02 | 2006-05-25 | Honda Motor Co Ltd | Oil pump unit |
| CN203050967U (en) * | 2012-12-30 | 2013-07-10 | 重庆两江机械制造有限责任公司 | Novel foot starting mechanism of motorcycle |
| CN203321734U (en) * | 2013-06-26 | 2013-12-04 | 重庆两江机械制造有限责任公司 | Error-proof motorcycle recoil start mechanism |
| CN203402240U (en) * | 2013-07-03 | 2014-01-22 | 北京汽车股份有限公司 | Connecting structure of steering shaft and steering yoke |
| CN203856925U (en) * | 2014-03-31 | 2014-10-01 | 奇瑞汽车股份有限公司 | Misassembly prevention synchronizer |
| CN105765223A (en) * | 2013-12-02 | 2016-07-13 | 株式会社山田制作所 | Oil pump |
-
2017
- 2017-08-29 CN CN201710756174.4A patent/CN107795478A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000199413A (en) * | 1998-12-28 | 2000-07-18 | Honda Motor Co Ltd | Engine oil pump |
| JP2006132342A (en) * | 2004-11-02 | 2006-05-25 | Honda Motor Co Ltd | Oil pump unit |
| CN203050967U (en) * | 2012-12-30 | 2013-07-10 | 重庆两江机械制造有限责任公司 | Novel foot starting mechanism of motorcycle |
| CN203321734U (en) * | 2013-06-26 | 2013-12-04 | 重庆两江机械制造有限责任公司 | Error-proof motorcycle recoil start mechanism |
| CN203402240U (en) * | 2013-07-03 | 2014-01-22 | 北京汽车股份有限公司 | Connecting structure of steering shaft and steering yoke |
| CN105765223A (en) * | 2013-12-02 | 2016-07-13 | 株式会社山田制作所 | Oil pump |
| CN203856925U (en) * | 2014-03-31 | 2014-10-01 | 奇瑞汽车股份有限公司 | Misassembly prevention synchronizer |
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Application publication date: 20180313 |
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