CN105864031A - Gear pump oil drain shell and gear pump with same - Google Patents
Gear pump oil drain shell and gear pump with same Download PDFInfo
- Publication number
- CN105864031A CN105864031A CN201610430239.1A CN201610430239A CN105864031A CN 105864031 A CN105864031 A CN 105864031A CN 201610430239 A CN201610430239 A CN 201610430239A CN 105864031 A CN105864031 A CN 105864031A
- Authority
- CN
- China
- Prior art keywords
- gear pump
- hole
- connecting hole
- oil extraction
- oil
- 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.)
- Granted
Links
Classifications
-
- 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
-
- 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
- F04C11/00—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations
- F04C11/008—Enclosed motor pump units
-
- 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
- F04C15/0096—Heating; Cooling
-
- 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
Abstract
The invention discloses a gear pump oil drain shell and a gear pump. The gear pump oil drain shell comprises an oil drain part and a connecting part arranged on the inner wall of the oil drain part. A first step hole is formed in the connecting part and comprises a first connecting hole away from the inner wall and a second connecting hole close to the inner wall. The dimension of the first connecting hole is larger than that of the second connecting hole. A third connecting hole is formed in the position, in the radial direction of the first step hole, of the connecting part, and the third connecting hole is communicated with the second connecting hole. The gear pump oil drain shell is used for the gear pump. A spindle of the gear pump is mounted on the first connecting hole through a first bearing. Due to the fact that the third connecting hole is communicated with the second connecting hole, oil in the gear pump oil drain shell, the spindle and the first bearing can carry out heat exchange, part of heat generated by relative movement of the spindle and the first bearing in the high-speed rotation process of the gear pump can be taken away, the problem that the spindle and the first bearing are damaged by high temperature is avoided, and therefore the service life of the spindle and the first bearing is prolonged.
Description
Technical field
The present invention relates to gear pump technical field, particularly to a kind of gear pump oil extraction housing and comprise this gear
The gear pump of pump oil extraction housing.
Background technology
Gear pump is a kind of conventional hydraulic pump in Hydraulic Power Transmission System, can divide internal messing by gear mesh form
Gear pump and external gear rotary pump two kinds.Crescent gear pump is to use gear internal messing principle, on main shaft
Actively internal gear drives external gear (i.e. outer rotor, escapement) rotating in same direction.In import department two, gear mutually divides
Suck liquid from formation negative pressure, constantly embed engagement at exit two gear and liquid extruding is exported.Two
Corresponding gear coordinates the spatial volume change circulation primary formed, it is achieved sucks material and discharges material each
Secondary.
Compared with external gear rotary pump, it is little etc. excellent that crescent gear pump has compact conformation, light weight and size
Point.And the gear rotating Vortex of crescent gear pump, relative sliding velocity is little, and abrasion is slight, so it makes
Use the life-span long.It addition, the flow pulsation of crescent gear pump is little, so pressure fluctuation and noise are less.With
Time, fluid is the most easily full of the inter-tooth slots of crescent gear pump, so allowing internal messing tooth
Wheel pump high speed rotating, therefore crescent gear pump has the advantage that volumetric efficiency is higher.But inside engaged gear
Pump high speed rotating produces amount of heat, is easily caused the damage of bearing.
Summary of the invention
Based on this, it is necessary to provide the gear pump oil extraction housing in a kind of service life improving bearing and comprise this
The gear pump of gear pump oil extraction housing.
A kind of gear pump oil extraction housing, including oil extraction portion and connecting portion, described connecting portion include fixing end and with
The connection end that described fixing end is relative, described fixing end is located in described oil extraction portion, and described connection end is provided with
One stepped hole, described first step hole includes the first connecting hole that internal diameter is bigger and less the second connection of internal diameter
Hole, the most described second connecting hole of described first connecting hole away from described fixing end, described first step hole
Hole wall is provided with the 3rd connecting hole, and described 3rd connecting hole connects with described second connecting hole.
Said gear pump oil extraction housing, for gear pump.The main shaft of gear pump is installed on by clutch shaft bearing
One connecting hole.Clutch shaft bearing is played position-limiting action by the first connecting hole, thus preferably supports main shaft rotates；
Simultaneously because the 3rd connecting hole and the second connecting hole connection, the oil body in gear pump oil extraction housing can with main shaft and
Clutch shaft bearing generation heat exchange, thus when taking away gear pump high speed rotating, main shaft and clutch shaft bearing relative motion are produced
Raw partial heat, it is to avoid occur that high temperature causes the problem that main shaft and clutch shaft bearing damage, thus improve main shaft
Service life with clutch shaft bearing.
Wherein in an embodiment, described oil extraction portion is provided with oil scupper, and described connecting portion is located at described oil extraction
On the bottom land of groove, described 3rd connecting hole connects described oil scupper and described first step hole.
Wherein in an embodiment, described 3rd connecting hole is near the described fixing end of described connecting portion.
Wherein in an embodiment, the bottom land of described oil scupper is provided with outage.
Wherein in an embodiment, the bottom land of described oil scupper is provided with motor wiring hole.
Wherein in an embodiment, described oil extraction portion is provided with installation portion in the edge ring of described oil scupper, institute
State installation portion and be provided with installing hole.
Wherein in an embodiment, described gear pump oil extraction housing is formed in one formula structure.
A kind of gear pump, including motor rotor component, oil suction housing unit and said gear pump oil extraction housing,
Described motor rotor component includes that main shaft and clutch shaft bearing, one end of described main shaft are installed on by clutch shaft bearing
Described first step hole, described oil suction housing unit is connected formation host cavity, described motor with described oil extraction portion
Rotor assembly is located in described host cavity.
Wherein in an embodiment, described motor rotor component also includes the second bearing, described oil suction housing
Assembly is provided with second step hole, and the other end of described main shaft is installed on described second by described second bearing
Hole, rank.
Wherein in an embodiment, described clutch shaft bearing and described second bearing are sliding bearing.
Accompanying drawing explanation
Fig. 1 is the schematic perspective view of the gear pump oil extraction housing of one embodiment of the invention；
Fig. 2 is the top view of gear pump oil extraction housing shown in Fig. 1；
Fig. 3 is the upward view of gear pump oil extraction housing shown in Fig. 1；
Fig. 4 is the profile of the line A-A of gear pump oil extraction housing shown in Fig. 2；
Fig. 5 is the profile of the gear pump of one embodiment of the invention.
Detailed description of the invention
For the ease of understanding the present invention, below with reference to relevant drawings, the present invention is described more fully.
Accompanying drawing gives presently preferred embodiments of the present invention.But, the present invention can come real in many different forms
Existing, however it is not limited to embodiment described herein.On the contrary, providing the purpose of these embodiments is to make this
The understanding of disclosure of the invention content is more thorough comprehensively.
It should be noted that when element is referred to as " being fixed on " another element, and it can be directly at another yuan
On part or element placed in the middle can also be there is.When an element is considered as " connection " another element, and it can
To be directly to another element or to may be simultaneously present centering elements.
Unless otherwise defined, all of technology used herein and scientific terminology and the technology belonging to the present invention
The implication that the technical staff in field is generally understood that is identical.The art used the most in the description of the invention
Language is intended merely to describe the purpose of specific embodiment, it is not intended that in limiting the present invention.Used herein
Term "and/or" includes the arbitrary and all of combination of one or more relevant Listed Items.
With reference to Fig. 1, Fig. 2 and Fig. 3, the gear pump oil extraction housing 110 of a preferred embodiment, including oil extraction portion
111 and connecting portion 112.
With reference to Fig. 1 and Fig. 4, connecting portion 112 includes fixing end and the connection end relative with this fixing end.Connect
The fixing end in portion 112 is located in oil extraction portion 111.The connection end of connecting portion 112 is provided with first step hole 114.
First step hole 114 includes the first connecting hole 1141 that internal diameter is bigger and less the second connecting hole of internal diameter
1143, relative second connecting hole 1143 of the first connecting hole 1141 is away from fixing end.The hole in first step hole 114
Wall is provided with the 3rd connecting hole 116, and the 3rd connecting hole 116 connects with the second connecting hole 1143.Concrete,
3rd connecting hole 116 is near the fixing end of connecting portion 112.
Said gear pump oil extraction housing 110, for gear pump 100 (see Fig. 5).The main shaft of gear pump 100
121 (see Fig. 5) are installed in the first connecting hole 1141 by clutch shaft bearing 122 (see Fig. 5).First even
Connect hole 1141 and clutch shaft bearing 122 is played position-limiting action, thus preferably supports main shaft rotates；Simultaneously because
3rd connecting hole 116 connects with the second connecting hole 1143, and the oil body in gear pump oil extraction housing 110 can be with master
There is heat exchange in axle 121 and clutch shaft bearing 122, thus main shaft 121 when taking away gear pump 100 high speed rotating
The partial heat produced with clutch shaft bearing 122 relative motion, it is to avoid occur that high temperature causes main shaft 121 and first
The problem that bearing 122 damages, thus improve main shaft 121 and the service life of clutch shaft bearing 122.
With continued reference to Fig. 1, concrete, oil extraction portion 111 is provided with oil scupper 1114, and connecting portion 112 is located at oil extraction
On the bottom land of groove 1114.Oil scupper 1114 connects the 3rd connecting hole 116 and outage 1112.Gear pump 100
After sucking oil body, first oil body is extruded in the oil scupper 1114 of gear pump oil extraction housing 110, oil scupper 1114
In oil body enter first step hole 114 by the 3rd connecting hole 116, thus with main shaft 121 and clutch shaft bearing
There is heat exchange in 122 contacts, and then takes away its partial heat.Constantly it is extruded at oil scupper along with oil body
In 1114 and constantly discharging from outage 1112, heat exchange can persistently be carried out, thus avoids the occurrence of high temperature
Cause the problem that main shaft 121 and clutch shaft bearing 122 damage, and then improve main shaft 121 and clutch shaft bearing 122
Service life.
Concrete, the bottom land of oil scupper 1114 is provided with outage 1112.Outage 1112 can be with oil-drain pipe
Deng connection, thus the oil body in gear pump oil extraction housing 110 is discharged into outside gear pump oil extraction housing 110
Portion.
Concrete, the bottom land of oil scupper 1114 is provided with motor wiring hole 1116.Motor wiring hole 1116 is used for
Connect motor power-supply wire.
Concrete, oil extraction portion 111 is provided with installation portion 113 in the edge ring of oil scupper 1114.Installation portion is provided with
Installing hole 115, installing hole 115 is used for installing this gear pump oil extraction housing 110.More specifically, in this enforcement
In example, installing hole 115 is uniformly distributed in the circumference of installation portion 113.
Concrete, oil extraction portion 111 and connecting portion 112 are formed in one formula structure.I.e. gear pump oil extraction housing
110 are formed in one formula structure.On the one hand, first step hole 114 integrated with oil extraction portion 111 can be more
The most more uniformly supports main shaft 121 rotates；On the other hand, connecting portion 112 is one-body molded with oil extraction portion 111,
Eliminate connecting portion 112 to cooperate or interconnective parts with oil extraction portion 111, efficiently reduce gear
The size of pump oil extraction housing 110, and then the axial dimension of gear pump 100 can be reduced.More specifically, gear
Pump oil extraction housing 110 is integrated casting.
With reference to Fig. 3, present invention also offers the gear pump 100 of an embodiment, including motor rotor component 120,
Oil suction housing unit 130 and said gear pump oil extraction housing 110.
With continued reference to Fig. 1 and Fig. 3, motor rotor component 120 includes main shaft 121 and clutch shaft bearing 122.Main
One end of axle 121 is installed on first step hole 114 by clutch shaft bearing 122.Oil suction housing unit 130 and row
Oil portion 111 connects formation host cavity, and motor rotor component 120 is located in host cavity.Concrete, oil suction shell
Body assembly 130 is connected with oil extraction portion 111 by the installing hole 113 of installation portion 113.
Said gear pump 100, uses gear pump oil extraction housing 110.During work in gear pump oil extraction housing 110
Oil body with main shaft 121 and clutch shaft bearing 122, heat exchange can occur, thus take away gear pump 100 high-speed rotary
The partial heat that when turning, main shaft 121 and clutch shaft bearing 122 relative motion produce, it is to avoid occur that high temperature causes master
The problem that axle 121 and clutch shaft bearing 122 damage, thus improve main shaft 121 and the use of clutch shaft bearing 122
Life-span.
Concrete, in the present embodiment, motor rotor component 120 also includes the second bearing 123.Oil suction housing
Assembly 130 includes second step hole 131.One end of main shaft 121 is installed on First by clutch shaft bearing 122
Hole, rank 114, the other end of main shaft 121 is installed on second step hole 131 by the second bearing 123.
More specifically, clutch shaft bearing 122 and the second bearing 123 are sliding bearing.
Each technical characteristic of embodiment described above can combine arbitrarily, for making description succinct, the most right
The all possible combination of each technical characteristic in above-described embodiment is all described, but, if these skills
There is not contradiction in the combination of art feature, is all considered to be the scope that this specification is recorded.
Embodiment described above only have expressed the several embodiments of the present invention, and it describes more concrete and detailed,
But can not therefore be construed as limiting the scope of the patent.It should be pointed out that, for this area
For those of ordinary skill, without departing from the inventive concept of the premise, it is also possible to make some deformation and change
Entering, these broadly fall into protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be with appended power
Profit requires to be as the criterion.
Claims (10)
1. a gear pump oil extraction housing, it is characterised in that include oil extraction portion (111) and connecting portion (112),
Described connecting portion (112) includes fixing end and the connection end relative with described fixing end, and described fixing end is located at
On described oil extraction portion (111), described connection end is provided with first step hole (114), described first step hole (114)
First connecting hole (1141) bigger including internal diameter and less the second connecting hole (1143) of internal diameter, described
The most described second connecting hole of one connecting hole (1141) (1143) is away from described fixing end, described First
The hole wall in hole, rank (114) is provided with the 3rd connecting hole (116), and described 3rd connecting hole (116) is with described
Second connecting hole (1143) connects.
Gear pump oil extraction housing the most according to claim 1, it is characterised in that described oil extraction portion (111)
Being provided with oil scupper (1114), described connecting portion (112) is located on the bottom land of described oil scupper (1114), institute
State the 3rd connecting hole (116) and connect described oil scupper (1114) and described first step hole (114).
Gear pump oil extraction housing the most according to claim 2, it is characterised in that described 3rd connecting hole
(116) near the described fixing end of described connecting portion (112).
Gear pump oil extraction housing the most according to claim 2, it is characterised in that described oil scupper (1114)
Bottom land be provided with outage (1112).
Gear pump oil extraction housing the most according to claims 2 to 4, it is characterised in that described oil scupper
(1114) bottom land is provided with motor wiring hole (1116).
6. according to the gear pump oil extraction housing described in any one of claim 2～4, it is characterised in that described row
Oil portion (111) is provided with installation portion (113), described installation portion (113) in the edge ring of described oil scupper (1114)
It is provided with installing hole (115).
7. according to the gear pump oil extraction housing described in any one of Claims 1 to 4, it is characterised in that described row
Oil portion (111) and connecting portion (112) are formed in one formula structure.
8. a gear pump, it is characterised in that include motor rotor component (120), oil suction housing unit (130)
And the gear pump oil extraction housing described in any one of claim 1～7, described motor rotor component (120) includes
Main shaft (121) and clutch shaft bearing (122), clutch shaft bearing (122) is passed through in one end of described main shaft (121)
It is installed on described first step hole (114), described oil suction housing unit (130) and described oil extraction portion (111)
Connecting and form host cavity, described motor rotor component (120) is located in described host cavity.
Gear pump the most according to claim 8, it is characterised in that described motor rotor component (120)
Also include that the second bearing (123), described oil suction housing unit (130) are provided with second step hole (131), institute
The other end stating main shaft (121) is installed on described second step hole (131) by described second bearing (123).
Gear pump the most according to claim 9, it is characterised in that described clutch shaft bearing (122) and
Described second bearing (123) is sliding bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610430239.1A CN105864031B (en) | 2016-06-15 | 2016-06-15 | Gear pump oil extraction housing and the gear pump for including the gear pump oil extraction housing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610430239.1A CN105864031B (en) | 2016-06-15 | 2016-06-15 | Gear pump oil extraction housing and the gear pump for including the gear pump oil extraction housing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105864031A true CN105864031A (en) | 2016-08-17 |
| CN105864031B CN105864031B (en) | 2018-07-10 |
Family
ID=56650629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610430239.1A Active CN105864031B (en) | 2016-06-15 | 2016-06-15 | Gear pump oil extraction housing and the gear pump for including the gear pump oil extraction housing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105864031B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1169511A (en) * | 1996-06-07 | 1998-01-07 | 松下电器产业株式会社 | Gear pump for use in electrically-operated sealed compressor |
| CN1296133A (en) * | 1999-11-15 | 2001-05-23 | 沙厄-丹福丝股份有限公司 | Positive-displacement type hydraulic component with almost zero side gap |
| KR20080054237A (en) * | 2006-12-12 | 2008-06-17 | 현대자동차주식회사 | Fuel pump structure |
| CN201206548Y (en) * | 2008-03-21 | 2009-03-11 | 国营第三九四厂 | Long life high speed gear pump |
| CN102362100A (en) * | 2009-09-25 | 2012-02-22 | 爱信艾达株式会社 | Drive device |
| CN202370828U (en) * | 2011-12-12 | 2012-08-08 | 重庆气体压缩机厂有限责任公司 | Rotor type oil pump |
| CN205858660U (en) * | 2016-06-15 | 2017-01-04 | 珠海格力电器股份有限公司 | Gear pump oil extraction housing and comprise the gear pump of this gear pump oil extraction housing |
-
2016
- 2016-06-15 CN CN201610430239.1A patent/CN105864031B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1169511A (en) * | 1996-06-07 | 1998-01-07 | 松下电器产业株式会社 | Gear pump for use in electrically-operated sealed compressor |
| CN1296133A (en) * | 1999-11-15 | 2001-05-23 | 沙厄-丹福丝股份有限公司 | Positive-displacement type hydraulic component with almost zero side gap |
| KR20080054237A (en) * | 2006-12-12 | 2008-06-17 | 현대자동차주식회사 | Fuel pump structure |
| CN201206548Y (en) * | 2008-03-21 | 2009-03-11 | 国营第三九四厂 | Long life high speed gear pump |
| CN102362100A (en) * | 2009-09-25 | 2012-02-22 | 爱信艾达株式会社 | Drive device |
| CN202370828U (en) * | 2011-12-12 | 2012-08-08 | 重庆气体压缩机厂有限责任公司 | Rotor type oil pump |
| CN205858660U (en) * | 2016-06-15 | 2017-01-04 | 珠海格力电器股份有限公司 | Gear pump oil extraction housing and comprise the gear pump of this gear pump oil extraction housing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105864031B (en) | 2018-07-10 |
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