CN208311033U - Rotor and hydraulic pump with the rotor - Google Patents
Rotor and hydraulic pump with the rotor Download PDFInfo
- Publication number
- CN208311033U CN208311033U CN201820840913.8U CN201820840913U CN208311033U CN 208311033 U CN208311033 U CN 208311033U CN 201820840913 U CN201820840913 U CN 201820840913U CN 208311033 U CN208311033 U CN 208311033U
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- hydraulic pump
- cavity
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Abstract
The utility model provides a kind of rotor and the hydraulic pump with the rotor.The hydraulic pump includes: drive shaft, the pump housing and rotor.Drive shaft is connected with rotor；The pump housing offers annular oil cavity, demarcation plate is provided in annular oil cavity, annular solid is rotatably inserted into annular oil cavity and the end face of second end and the end face of demarcation plate can slidably connect demarcation plate relatively and annular solid is used to for annular oil cavity being separated into multiple mutually disconnected point of oil pockets；It is provided with suction passage and pressure oil passage in each point of oil pocket, is respectively arranged in oil sucting one-way valve and pressure oil check valve in each suction passage and each pressure oil passage.Hydraulic pump in the utility model greatly improves the balance in rotor rotation process, reduces operation noise.In addition, inlet port and press oil port by laying along annular oil cavity circumferencial direction, reduce the flow in hydraulic pump actual motion and pressure fluctuation, the steady efficient operation of hydraulic pump is realized.
Description
Technical field
The utility model relates to pumping technology fields, in particular to a kind of rotor and with the hydraulic pump of the rotor.
Background technique
Hydraulic pump is the dynamical element that the mechanical energy of engine is converted into liquid pressure energy in hydraulic system, it is specific and
Speech, by engine or motor drive, makes the volume in pump body oil pocket space change and (changes from small to big, by becoming greatly
It is small), and then realize the energy conversion of the energy from mechanical energy to hydraulic fluid pressure.Currently, hydraulic pump common in industrial application is main
There are plunger pump, gear pump, vane pump and screw pump etc..
Plunger pump forms sealed volume by cylindrical plunger and pump housing oil pocket, when spring and the cam machine of the plunger other end
Structure drives oil pocket intracorporal plunger when moving reciprocatingly, and oil pocket volume constantly changes, and with outside oil pocket oil sucting one-way valve and
The distributing devices such as pressure oil check valve complete the mechanical energy of hydraulic pump to the conversion process of energy of hydraulic fluid pressure energy jointly.
Gear pump is to together constitute with seal operation by the pump housing end cap before and after two intermeshing gears and path of contact
Oil pocket, the gear when driving mechanism of gear pump drives driving gear and driven gear to be rotated, in pump housing oil suction cavity space
It is gradually backed out engagement, i.e. oil sucting cavity spatial volume is gradually increased, and inner space pressure is less than external inlet line pressure, is realized
Oil-absorbing process；Hydraulic oil in the sealed volume that the tooth socket and the outside pump housing that enter driving gear and driven gear are constituted, with
Hydraulic oil in the turning handle tooth socket of gear be delivered in pumping cavity from oil sucting cavity；And enter the hydraulic oil of pumping cavity with it
Internal driving and driven gear progresses into engagement, i.e. pumping cavity spatial volume is gradually reduced, and inner space pressure is greater than outside
Oil pressure in pressure oil pipeline realizes the extruding discharge process of pressure oil.
Vane pump is by cylindrical rotor, outside shell, oil distribution casing and several being arranged radially in rotor vane groove
Extension type blade is constituted.There is certain eccentricity at blade pump rotor and pump housing shell round cavity center, in rotor vane groove
The blade retractable radially arranged.When the rotor is turning, each telescopic blade is acted on down by rotary centrifugal force, makes every
A blade outer end is close to pump housing shell rounded internal surface, and constitutes several seal operation oil pockets with the oil distribution casing of two sides.Work as leaf
Hydraulic oil when the driving mechanism mechanism of piece pump drives blade pump rotor rotation, in the oil pocket space of every two blade composition
It is rotated together in the pump housing.Since rotor and pump housing shell are there are certain eccentricity, cause to make rotation fortune when rotor and blade
When dynamic, the interlobate volume of oil distribution casing oil sucting cavity side is gradually increased, and internal pressure is made to be less than the oil pressure in the oil sucting cavity of outside,
Hydraulic oil sucks in two blade spaces, completes oil-absorbing process.When rotor blade turns to oil distribution casing pumping cavity one through oil sealing area
When side, blade is gradually retracted in blade groove, i.e., interlobate volume gradually becomes smaller, and hydraulic oil, which is squeezed, is greater than internal pressure
Oil pressure in the pumping cavity of outside completes pressure oil and discharge process.
Screw pump is a kind of extraordinary external toothing cycloid gear pump, is generally made of two screw rods or three screw rods.When actively
When screw rod drives driven screw to rotate together with, the sealed volume volume of screw pump oil sucting cavity one end constantly increases, and carries out oil suction behaviour
Make；And the sealed volume of pumping cavity one end gradually decreases, and completes pressure oil and discharge process.
Above-mentioned all kinds of hydraulic pumps are easy to produce in the process of running due to the internal structure of the pump housing itself
Out-of-balance force and noise, and flow in actual motion and pressure fluctuation are also larger, prevent hydraulic pump from steadily efficiently transporting
Row.
Utility model content
In consideration of it, the utility model proposes a kind of rotor and with the hydraulic pump of the rotor, it is intended to solve existing hydraulic
The operation noise of pump is big and jiggly problem.
On one side, the utility model proposes a kind of rotor, which includes: ontology and annular solid；Wherein, described
For being connected with drive shaft, the first end of the annular solid is connected body with the ontology, the end face of second end be provided with and
The peak line that the farthest point of the first end distance is formed and the hollow line formed apart from nearest point, also, the peak line
It is smooth surface blending between the hollow line.
Further, in above-mentioned rotor, the peak line and the hollow line are at least two and interval setting；And
It and between the adjacent peak line and the hollow line is smooth surface blending.
The peak line and the hollow line being arranged radially along the annular solid；And/or the peak line and described
Hollow line is uniformly distributed.
Rotor in the utility model is matched with the annular oil cavity in hydraulic pump, it is possible to reduce hydraulic pump actual motion
In flow, pressure fluctuation and noise, realize the steady efficient operation of hydraulic pump.
On the other hand, the utility model also proposed a kind of hydraulic pump, which includes: drive shaft, the pump housing and rotor；
Wherein, the drive shaft is connected with the rotor, for driving the rotor to rotate；The pump housing offers annular oil cavity,
At least two are provided in the annular oil cavity along axial telescopic demarcation plate, the annular solid is rotatably inserted into described
In the annular oil cavity and end face of second end and the end face of the demarcation plate can slidably connect relatively；The demarcation plate and institute
Annular solid is stated for the annular oil cavity to be separated into multiple mutually disconnected point of oil pockets；Divide described in each and is provided with use in oil pocket
In being respectively arranged with oil suction in the suction passage and pressure oil passage that are connected with fuel tank, each suction passage and each pressure oil passage
In check valve and pressure oil check valve.
Further, in above-mentioned hydraulic pump, the demarcation plate is uniformly distributed along the circumferential direction of the annular oil cavity；And/or institute
The peak line and the bottom surface for dividing oil pocket for stating annular solid are can the opposite contact connectio slided.
Further, in above-mentioned hydraulic pump, each suction passage in the annular oil cavity is uniformly distributed circumferentially；Institute
Each pressure oil passage stated in annular oil cavity is uniformly distributed circumferentially；Also, each suction passage and each pressure oil are logical
The setting of road interval.
Further, in above-mentioned hydraulic pump, the demarcation plate includes:: clapboard body and spring；Wherein, the pump housing is opened
Equipped with the partition mounting hole for running through the annular oil cavity bottom of chamber；The clapboard body is telescopically placed in the partition mounting hole
Interior, the spring is placed between the clapboard body and the bottom hole of the partition mounting hole, also, one end of the spring and institute
It states partition mounting hole to be connected, the other end is connected with the clapboard body；Effect of the clapboard body in pressing force of the spring
Under along the partition mounting hole free extension, the end face of the annular solid second end and the end face of the clapboard body can be opposite
Slidably connect.
Further, in above-mentioned hydraulic pump, the pump housing includes: the oil pocket ontology being connected and channel body；Wherein, institute
It states annular oil cavity and is opened in the oil pocket ontology；Each suction passage and pressure oil passage are opened in the channel body.
Further, in above-mentioned hydraulic pump, further includes: first end cover and second end cover；Wherein, the first end cover and institute
It states channel body and oil pocket ontology is detachably connected, also, the first end cover offers and each suction passage and pressure oil
The oil inlet and oil outlet of the corresponding connection in channel；The second end cover covers at the rotor and detachable with the oil pocket ontology
Connection, the drive shaft can drivingly be arranged in the rotor endcap.
Further, in above-mentioned hydraulic pump, pass through thrust bearing phase between the ontology of the rotor and the oil pocket ontology
Connection.
Compared with prior art, since the hydraulic pump in the utility model is provided with annular oil cavity, by rotor in annular
The oil suction and pressure oil process of hydraulic pump are realized in rotation in oil pocket, so the balance in rotor rotation process is greatly improved,
Reduce operation noise.In addition, reducing liquid by the suction passage and pressure oil passage of the circumferencial direction laying along annular oil cavity
Flow and pressure fluctuation in press pump actual motion realize the steady efficient operation of hydraulic pump.
Detailed description of the invention
By reading the following detailed description of the preferred embodiment, various other advantages and benefits are common for this field
Technical staff will become clear.The drawings are only for the purpose of illustrating a preferred embodiment, and is not considered as practical to this
Novel limitation.And throughout the drawings, the same reference numbers will be used to refer to the same parts.In the accompanying drawings:
Fig. 1 is the structural schematic diagram of the rotor provided in the utility model embodiment；
Fig. 2 is the main view of the rotor provided in the utility model embodiment；
Fig. 3 is the A-A cross-sectional view of Fig. 2；
Fig. 4 is the B-B cross-sectional view of Fig. 2；
Fig. 5 is the cross-sectional view of the hydraulic pump provided in the utility model embodiment；
Fig. 6 is the main view of the hydraulic pump provided in the utility model embodiment；
Fig. 7 is the cross-sectional view of oil pocket ontology in the hydraulic pump provided in the utility model embodiment；
Fig. 8 is the cross-sectional view of channel body in the hydraulic pump provided in the utility model embodiment；
Fig. 9 is the operation principle schematic diagram of the hydraulic pump provided in the utility model embodiment.
Specific embodiment
Exemplary embodiments of the present disclosure are described in more detail below with reference to accompanying drawings.Although showing the disclosure in attached drawing
Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here
It is limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure
It is fully disclosed to those skilled in the art.It should be noted that in the absence of conflict, the implementation in the utility model
Feature in example and embodiment can be combined with each other.It is below with reference to the accompanying drawings and in conjunction with the embodiments practical new this is described in detail
Type.
Rotor embodiment:
Referring to Fig. 1 to Fig. 4, the preferred structure of rotor provided by the embodiment of the utility model is shown in figure.As shown,
The rotor includes ontology 11 and annular solid 12.
Wherein, ontology 11 can be column, and one end (left end shown in Fig. 3) of ontology 11 offers mounting hole, drive
Axis (not shown) is connected with the connecting hole, to drive ontology 11 to rotate.
Annular solid 12 can be torus, and the first end (right end shown in FIG. 1) of annular solid 12 is connected with ontology 11, ring
The end face of the second end (left end shown in FIG. 1) of body 12 is provided with peak line a and hollow line b.Wherein, so-called peak line a is
The farthest point of distance is formed by line between the second end and first end of annular solid 12, and so-called hollow line b is annular solid 12
The nearest point of distance is formed by line between second end and first end, is smooth curved surface mistake between peak line a and hollow line b
It crosses.
The end face of 12 second end of Fig. 1 and annular solid shown in Fig. 2 is provided with two peak line a and two hollow line b, tool
When body is implemented, peak line a and hollow line b can respectively be one, it is of course also possible to be three and three or more, specific item number
It can determine according to the actual situation, the present embodiment does not do any restriction to it.
When peak line a and hollow line b is a plurality of, each peak line a and each hollow line b should be spaced setting, also, adjacent
It is smooth surface blending between peak line a and hollow line b.In addition, peak line a and hollow line b can be along annular solids 12
It is arranged radially.Preferably, peak line a and hollow line b are uniformly distributed along the circumferential direction of annular solid 1.It is further preferred that 11 He of ontology
Annular solid 12 is integrally formed.
Rotor in the present embodiment is matched with the annular oil cavity in hydraulic pump, it is possible to reduce in hydraulic pump actual motion
Flow, pressure fluctuation and noise, realize the steady efficient operation of hydraulic pump.
Hydraulic pump embodiment:
Referring to Fig. 5 to Fig. 8, the preferred structure of hydraulic pump provided by the embodiment of the utility model is shown in figure.As schemed
Show, which includes: rotor 1, drive shaft 2, the pump housing 3, demarcation plate 4, first end cover 5 and second end cover 6.
Wherein, drive shaft 2 is connected with rotor 1.Specifically, drive shaft 1 can be fixed on rotor 1 by interference fit
In mounting hole, to drive rotor 1 to rotate, power is provided for rotor 1.
The pump housing 3 can be column, and the pump housing 3 offers the annular oil cavity 31 of circular ring shape, and annular oil cavity 31 can be with column
Body coaxial arrangement.At least two demarcation plates 4 are provided in annular oil cavity 31, demarcation plate 4 can be stretched along the axial direction of annular oil cavity 31
Contracting, demarcation plate 4 are circumferentially spaced at several parts by the space in annular oil cavity 31.When it is implemented, the quantity of demarcation plate 4 can be with
Identical as the sum of the quantity of peak line a and hollow line b on rotor 1, it is of course also possible to different, particular number can be according to reality
Border situation is set, and the present embodiment do not do any restriction to it.The present embodiment is illustrated by taking four demarcation plates as an example below.
Referring back to Fig. 9, the preferred structure of demarcation plate 4 in the present embodiment is shown in figure.As shown, the demarcation plate 4 wraps
It includes: clapboard body 42 and spring 43.Wherein, the pump housing 3 offers the partition mounting hole 41 through 31 bottom of chamber of annular oil cavity, partition sheet
Body 42 is placed in the partition mounting hole 41, and spring 43 is in compressive state and is placed in the hole of clapboard body 43 and partition mounting hole 41
Between bottom, one end of spring 43 is connected with partition mounting hole 41, and the other end is connected with clapboard body 42.Due to rotor 1
The end face at two ends is curved surface, so in the rotation process of rotor 1, clapboard body 42 can be under the action of 43 pressing force of spring
Along 41 free extension of partition mounting hole, so that the end face of 12 second end of annular solid and the end face of clapboard body 42 can opposite slidings
Ground connects.In the telescopic process of clapboard body 42, when clapboard body 42 stretches out the partition mounting hole 41, clapboard body
It is clearance fit between 42 and the inner wall of annular oil cavity 31, to prevent the hydraulic oil of annular oil cavity 31 from flowing through clapboard body 42 and ring
The junction of shape oil pocket 31.
When it is implemented, clapboard body 42 can be columnar cylinder, section can be rectangle.
It should be noted that the present embodiment is only schematically illustrated every the structure for setting body 4, when it is implemented, every setting
The other structures that body 4 can also be well known to those skilled in the art, the present embodiment do not do any restriction to it.
The specific structure of rotor 1 is referring to above-described embodiment, and details are not described herein for the present embodiment.
The annular solid 12 of rotor 1 is rotatably inserted into annular oil cavity 31, also, the inner wall of rotor 1 and annular oil cavity 3
Between be clearance fit, to be sealed to the hydraulic oil in annular oil cavity 31.The end face of 12 second end of annular solid of rotor 1 with
The end face of clapboard body 42 can slidably connect relatively, that is to say, that in 1 rotary course of rotor, in compressed spring 43
Under effect, clapboard body 42 can axially stretch, so that annular solid 12 has peak line a (highest point of working curved surface)
It is connected to the end face of clapboard body 42 always with the end face of hollow line b (minimum point of working curved surface), and then makes demarcation plate 4 and ring
Annular oil cavity 31 is separated into multiple independent mutually disconnected point of oil pockets 311 by body 12, realizes different divide between oil pocket 311
Isolation and sealing.The peak line of annular solid 12 is the contact connectio that can be slided relatively with the bottom surface for dividing oil pocket 31, i.e., in rotor 1
In rotary course, the peak line a of annular solid 12 is tightly attached to this and the bottom surface of oil pocket 31 is divided to slip over.
Referring to Fig. 5 and Fig. 7, suction passage 3111 and pressure oil passage 3112 are provided in each point of oil pocket 311, each oil suction is logical
Oil sucting one-way valve 3113 is provided in road 3111, oil sucting one-way valve 3113 is used to the hydraulic oil in fuel tank being drawn into a point oil pocket
In 31.It is provided in each pressure oil passage 3,112 3114 in pressure oil check valve, pressure oil check valve 3114 will be for that will divide in oil pocket 31
Hydraulic oil be pressed out in fuel tank.Annular oil cavity 31 along the circumferential direction every 90 ° of settings, one demarcation plate 4, annular oil cavity 31
Slot bottom is along the circumferential direction provided with a suction passage 3111 and pressure oil passage 3112 every 90 °.Preferably, suction passage 3111
With pressure oil passage 3112 respectively close to being divided to two demarcation plates 4 of 311 two sides of oil pocket to be arranged.
First end cover 5 is detachably connected with the pump housing 3, and concretely screw connects.First end cover 5 offers logical with each oil suction
Road 1111 corresponds to the inlet port 51 being connected to and press oil port 52 with pressure oil passage 1112.Each inlet port 51 and press oil port 52 are and fuel tank
It is connected.Oil sucting one-way valve 3113 can connect suction passage 3111 and inlet port 51, and pressure oil check valve 3114 can connect pressure
Oily channel 3112 and press oil port 52.
Second end cover 6 covers at rotor 1 and is detachably connected with the pump housing 3, and drive shaft 1 is rotatably penetrated and arranged in second end cover
6.Drive shaft 1 is fixed in 6 bearing block of second end cover by radial bearing 7, and second end cover 6 is fixed by screws in the pump housing 3
Outside (right side shown in fig. 5).1 inside (left side shown in fig. 5) of rotor is connected by thrust bearing 8 with the pump housing 3, is passed through simultaneously
Drive shaft 1 and radial bearing 7 are fixed in second end cover 6.
The present embodiment, pad is equipped with sealing ring 9 between second end cover 6 and the pump housing 3, between the pump housing 3 and first end cover 5,
Sealing ring 9 is placed in the sealing ring mounting groove in each sealing surface, to realize the sealing function of each fitting surface of hydraulic pump.
The working principle of the present embodiment is illustrated below:
For any one divides oil pocket 311, when the peak line a of 12 second end face of annular solid in annular oil cavity 31 is close to
During dividing the bottom surface of oil pocket 311 to be rotated to pressure oil passage 3112 from suction passage 3111, the peak line a of annular solid 12
The oil pocket volume of annular oil cavity 31 between front side (right side shown in Fig. 9) and pressure oil passage 3112 gradually becomes smaller, and squeezes the portion
Divide hydraulic oil contained in oil pocket space, the oil pressure in the part oil pocket space is greater than 3114 other side of pressure oil check valve at this time
Pressure, the spool that hydraulic oil opens pressure oil check valve 3114 flow into pressure oil passage 3112, flow out hydraulic pump using press oil port 52.
Similarly, in the process, on rear side of 12 peak line a of annular solid between (left side shown in Fig. 9) and suction passage 3111
The oil pocket volume of annular oil cavity 31 become larger, it is another to be less than oil sucting one-way valve 3113 for the oil pressure in the part oil pocket space at this time
The pressure of side, the spool that hydraulic oil opens oil sucting one-way valve 3113 flow into annular oil cavity 31, while liquid from suction passage 3111
Press pump outer loop hydraulic oil flows into suction passage 3111 through inlet port 51 and is supplemented.
When drive shaft 2 drives 1 rotary motion of rotor, the volume of oil pocket 31 is each divided to become larger respectively from small, then from
It gradually becomes smaller greatly, is sequentially completed the work of oil suction to pressure oil.Hydraulic pump shown in Fig. 9 includes that four independent point of oil pockets 31 are
Example, when A of the rotor 1 in figure to rotate a circle (360 °) when, four independent point of oil pockets respectively complete respectively oil suctions twice and
Pressure oil work.
Compared with prior art, annular oil cavity is provided with by hydraulic pump in this present embodiment, by rotor 1 in annular oil
The oil suction and pressure oil process of hydraulic pump are realized in rotation in chamber, so greatly improving the balance in 1 rotation process of rotor, are subtracted
Small operation noise.By the suction passage and pressure oil passage laid along 31 circumferencial direction of annular oil cavity, reduce hydraulic pump reality
The running flow in border and pressure fluctuation realize the steady efficient operation of hydraulic pump.
In above-described embodiment, demarcation plate 4 is uniformly distributed along annular oil cavity 31, annular oil cavity 31 is uniformly spaced into more
Identical point of oil pocket 311 of a volume.Correspondingly, each suction passage 3111 in annular oil cavity 31 is along the circumferential equal of annular oil cavity 31
Even distribution, each pressure oil passage 3112 in annular oil cavity 31 are also uniformly distributed along the circumferential direction of annular oil cavity 31, also, each oil suction is logical
Road 3111 and the setting of the interval of each pressure oil passage 3112.
As can be seen that the present embodiment in, by the circumferencial direction along annular oil cavity lay symmetrically suction passage with
Pressure oil passage can be further improved the balance during rotor operation and reduce operation noise, in addition it is also possible to further
Reduce the flow in hydraulic pump actual motion and pressure fluctuation.
It is further continued for referring to Fig. 5, for the ease of processing, in the various embodiments described above, the pump housing 3 may include: 32 He of oil pocket ontology
Channel body 33.Wherein, annular oil cavity 31 is provided on oil pocket ontology 32, and each suction passage 3111 and pressure oil passage 3112 are opened
It is located in channel body 33, channel body 33 can be connected with oil pocket ontology 32 by screw.Suction passage 3111 and pressure oil
The radial section in channel 3112 all can be rectangle.First end cover 6 is placed in the outside (left side shown in fig. 5) of channel body 33 simultaneously
It is connected by screw.When it is implemented, can also be by a screw by first end cover 6, channel body 33 and oil pocket ontology
32 are detachably connected.
To sum up, the present embodiment greatly improves the balance in rotor rotation process, reduces operation noise.Pass through circumference
Oil suction, the press oil port design of direction laying, reduce the flow in hydraulic pump actual motion and pressure fluctuation, realize hydraulic pump
Steady efficient operation.
Obviously, it is practical without departing from this can to carry out various modification and variations to the utility model by those skilled in the art
Novel spirit and scope.If in this way, these modifications and variations of the present invention belong to the utility model claims and
Within the scope of its equivalent technologies, then the utility model is also intended to include these modifications and variations.
Claims (10)
1. a kind of rotor (1) characterized by comprising ontology (11) and annular solid (12)；Wherein,
The ontology (11) with drive shaft for being connected；
The first end of the annular solid (12) is connected with the ontology (11), and the end face of second end is provided with and the first end
The peak line that the farthest point of distance is formed and the hollow line formed apart from nearest point, also, the peak line and the trough
It is smooth surface blending between line.
2. rotor (1) according to claim 1, which is characterized in that
The peak line and the hollow line are at least two and interval setting；Also,
It is smooth surface blending between the adjacent peak line and the hollow line.
3. rotor (1) according to claim 1, which is characterized in that
The peak line and the hollow line being arranged radially along annular solid；And/or
The peak line and the hollow line are uniformly distributed.
4. a kind of hydraulic pump characterized by comprising drive shaft (2), the pump housing (3) and such as any one of claims 1 to 3 institute
The rotor (1) stated；Wherein,
The drive shaft (2) is connected with the rotor (1), for driving the rotor (1) to rotate；
The pump housing (3) offers annular oil cavity (31), and at least two are provided in the annular oil cavity (31) can stretch along axial
The demarcation plate (4) of contracting, the annular solid (12) be rotatably inserted into the annular oil cavity (31) and the end face of second end with
The end face of the demarcation plate (4) can slidably connect relatively；The demarcation plate (4) and the annular solid (12) are used for institute
It states annular oil cavity (31) and is separated into multiple mutually disconnected point of oil pockets (311)；
Divide in oil pocket (311) described in each and is provided with suction passage (3111) and pressure oil passage (3112), each suction passage
(3111) and in each pressure oil passage (3112) it is respectively arranged in oil sucting one-way valve (3113) and pressure oil check valve (3114).
5. hydraulic pump according to claim 4, which is characterized in that
The demarcation plate (4) is circumferentially uniformly distributed along the annular oil cavity (31)；And/or
Contact connectio between the peak line and the bottom surface for dividing oil pocket (311) of the annular solid (12) for that can slide relatively.
6. hydraulic pump according to claim 5, which is characterized in that
Each suction passage (3111) in the annular oil cavity (31) is uniformly distributed circumferentially；
Each pressure oil passage (3112) in the annular oil cavity (31) is uniformly distributed circumferentially；Also,
Each suction passage (3111) and the setting of each pressure oil passage (3112) interval.
7. hydraulic pump according to claim 4, which is characterized in that the demarcation plate (4) includes: clapboard body (42) and bullet
Spring (43)；Wherein,
The pump housing (3) offers the partition mounting hole (41) through the annular oil cavity (31) slot bottom；
The clapboard body (42) is telescopically placed in the partition mounting hole (41), and the compressed spring (43) is placed in described
Between clapboard body (42) and the bottom hole of the partition mounting hole (41), also, one end of the compressed spring (43) with it is described
Partition mounting hole (41) is connected, and the other end is connected with the clapboard body (42)；
The clapboard body (42) is under the action of spring (43) pressing force along partition mounting hole (41) free extension, institute
The end face for stating annular solid (12) second end and the end face of the clapboard body (42) can slidably connect relatively.
8. hydraulic pump according to claim 4, which is characterized in that the pump housing (3) includes: the oil pocket ontology being connected
(32) and channel body (33)；Wherein,
The annular oil cavity (31) is opened in the oil pocket ontology (32)；
Each suction passage (3111) and each pressure oil passage (3112) are opened in the channel body (33).
9. hydraulic pump according to any one of claims 4 to 8, which is characterized in that further include: first end cover (5) and
Two end caps (6)；Wherein,
The first end cover (5) is detachably connected with the pump housing (3), also, the first end cover (5) offer with it is each described
Suction passage (3111) corresponds to the inlet port (51) being connected to and press oil port (52) with each pressure oil passage (3112)；
The second end cover (6) covers at the rotor (1) and is detachably connected with the oil pocket ontology (32), the drive shaft
(2) it can drivingly be arranged in the second end cover (6).
10. hydraulic pump according to any one of claims 4 to 8, which is characterized in that the ontology (11) of the rotor (1)
It is connected between the oil pocket ontology (32) by thrust bearing (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820840913.8U CN208311033U (en) | 2018-05-31 | 2018-05-31 | Rotor and hydraulic pump with the rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820840913.8U CN208311033U (en) | 2018-05-31 | 2018-05-31 | Rotor and hydraulic pump with the rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208311033U true CN208311033U (en) | 2019-01-01 |
Family
ID=64710250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820840913.8U Expired - Fee Related CN208311033U (en) | 2018-05-31 | 2018-05-31 | Rotor and hydraulic pump with the rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208311033U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108425841A (en) * | 2018-05-31 | 2018-08-21 | 马长永 | Rotor and hydraulic pump with the rotor |
-
2018
- 2018-05-31 CN CN201820840913.8U patent/CN208311033U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108425841A (en) * | 2018-05-31 | 2018-08-21 | 马长永 | Rotor and hydraulic pump with the rotor |
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