CN101532603B - Lubricating pump - Google Patents
Lubricating pump Download PDFInfo
- Publication number
- CN101532603B CN101532603B CN2009101165439A CN200910116543A CN101532603B CN 101532603 B CN101532603 B CN 101532603B CN 2009101165439 A CN2009101165439 A CN 2009101165439A CN 200910116543 A CN200910116543 A CN 200910116543A CN 101532603 B CN101532603 B CN 101532603B
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- lubricant pump
- live axle
- housing
- rotor
- sealed cover
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- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
The invention belongs to lubrication technical field, concretely relates to a lubricating pump. The lubricating pump includes an internal rotor and an external rotor which are in cycloid type gear engage engagement with each other, gears of the internal rotor and the external rotor are engaged with each other for sucking and supplying oil. The lubricating pump of the present invention adopts a machine-pump integrated structure, has characteristics of built-in integration and without outer leakage, heat generated when the lubricating pump is working is brought by the lubricating fluid, so that stable and safe operation of whole system is guaranteed, the present invention reduces middle transmission link, realizes synchronous operation of the lubricating pump and lubricated mechanism or device, not only increases working efficiency of the lubricating pump, but also increases work life of the lubricating pump.
Description
Technical field
The invention belongs to the dynamic lubrication technical field, be specifically related to a kind of lubricant pump.
Background technique
In order to guarantee the continual and steady operation of mechanism, must make to obtain lubricatedly fully effectively between each parts of working in coordination in the mechanism in the mechanical system, so in the system lubrication oil supply device need be set.The frame that discloses this oil pump in a kind of oil pump of internal-combustion engine (GB2100354A) is fixedly connected with live axle; The inboard of frame is provided with by the external rotor that is fixed together with it, and the inboard of external rotor is provided with the internal rotor with its formation gerotor gear engagement, and the end face away from live axle of inner and outer rotors is provided with sealed cover; Sealed cover and frame are set to be rotatably assorted; Sealed cover is provided with the import and the outlet of eccentric opening and oil circulation, and rotating shaft is passed internal rotor and eccentric opening and is resisted against on the sealed cover, and the drive shaft housing rotates; Oil sucks from import, after gear engagement between the inner and outer rotors and pressurization, is discharged by the outlet on the sealed cover.And in-house lubrication oil supply device of the prior art often structure is comparatively complicated, operational efficiency is lower and manufacture cost is higher, therefore needing badly at present provides a kind of simple in structure, volume is little and technology capability is good lubricating fitting.
Summary of the invention
The purpose of this invention is to provide a kind of lubricant pump, it is simple in structure, technology capability good, and volume is little and in light weight, effectively prevents the generation of leakage situation.
For realizing above-mentioned purpose; The present invention has adopted following technological scheme: a kind of lubricant pump, and the housing of lubricant pump is fixedly connected with live axle, and the inboard of housing is provided with the external rotor that is fixed together with it; The inboard of external rotor is provided with the internal rotor with its formation gerotor gear engagement; Be provided with sealed cover between the datum clamp face away from the end face of live axle and lubricant pump of inside and outside rotor, sealed cover and housing constitute and are rotatably assorted import and outlet that sealed cover is provided with eccentric opening and supplies the lubricant oil circulation; Rotating shaft is passed internal rotor and described eccentric opening successively and is resisted against on the datum clamp face; Described drive shaft housing rotates, and the import on the lubricant oil selfsealings cover plate sucks, and after the gear between the inner and outer rotors is nibbled and pressurizeed, is discharged by the outlet on the sealed cover; Be covered with the sealing compensation plate on the end face near live axle of described external rotor and internal rotor, be provided with pressure spring between described sealing compensation plate and the live axle.
Can know by technique scheme; Lubricant pump among the present invention comprises the internal rotor and the external rotor of mutual one-tenth gerotor gear engagement; And the gear of inside and outside rotor intermeshes with oil suction and fuel feeding, also is that the lubricant pump among the present invention is actually a kind of cycloid gear pump, and carries during the cycloidal gear pump operation liquid steady; Pulsating movement free, vibration is little, noise is low, the strong and long service life of self-priming performance.From the above, the present invention is simple in structure, technology capability good, and volume is little and in light weight.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the A-A sectional view of Fig. 1.
Embodiment
Like Fig. 1, shown in 2; The housing 20 of the tubular of lubricant pump is fixedly connected with live axle 10; The inboard of housing 20 is provided with the external rotor 30 that is fixed together with it; The inboard of external rotor 30 is provided with the internal rotor 40 with its formation gerotor gear engagement; Be provided with sealed cover 50 between the datum clamp face 80 away from the end face of live axle 10 and lubricant pump of inside and outside rotor 40,30, sealed cover 50 constitutes with housing 20 and is rotatably assorted import 51 and outlet 52 that sealed cover 50 is provided with eccentric opening and supplies the lubricant oil circulation; Rotating shaft 70 is passed internal rotor 40 and described eccentric opening successively and is resisted against on the datum clamp face 80; Described live axle 10 drive shell 20 are rotated, and the import 51 on the lubricant oil selfsealings cover plate 50 sucks, and through inner and outer rotors 40, gear between 30 nibble and the back of pressurizeing by 52 discharges of the outlet on the sealed cover 50.
During real work, live axle 10 rotates, and rotates thereby drive housing 20, and owing to housing 20 is fixedly connected with external rotor 30, so external rotor 30 also rotates thereupon; Because constituting with sealed cover 50, housing 20 is rotatably assorted; Be the cycloidal gear engagement between internal rotor 40 and the external rotor 30; And internal rotor 40 can 70 rotate with sealed cover 50 around the shaft, therefore under the drive of live axle 10, produces relative rotation between internal rotor 40 and the external rotor 30; Thereby the import on the selfsealings cover plate 50 51 sucks lubricant oil, and after rotating pressurization, the outlet on the lubricant oil selfsealings cover plate 50 52 is discharged.
As preferred version of the present invention, as shown in Figure 1, described live axle 10 be this lubricant pump the line shaft of the device of fuel feeding for it.
From the above, the line shaft of lubricated device is the live axle 10 of this lubricant pump just, that is to say; When the line shaft of lubricated device rotates operation; Described line shaft directly drives lubricant pumps operation rotation as live axle 10, so the lubricant pump among the present invention realized and the synchronous operation of its device that is lubricated, and has not only improved lubrication effect greatly; Also reduce the energy consumption of lubricant pump, increased the service life of lubricant pump.
Have multiple for the mode that is fixedly connected between the housing 20 that makes tubular and the live axle 10; Such as adopting bolt to connect; As preferred version of the present invention; For interference is connected, interference connects makes that lubricated pump structure is simpler, and has alleviated the overall weight of lubricant pump between described external rotor 30 and the housing 20.
As shown in Figure 1, be covered with sealing compensation plate 60 on the end face near live axle 10 of described external rotor 30 and internal rotor 40, be provided with pressure spring 90 between described sealing compensation plate 60 and the live axle 10.
Referring to Fig. 1; One end of pressure spring 90 is resisted against the termination portion of live axle 10; The other end then is resisted against the upper-end surface of sealing compensation plate 60; And make the lower end surface of sealing compensation plate 60 be fitted in tightly on the upper-end surface of external rotor 30 and internal rotor 40, thereby the gap between external rotor 30 and internal rotor 40 and the sealing compensation plate 60 when having reduced greatly that the lubricant oil row pressure increases has prevented the generation of leakage situation.
Described housing 20 is provided with self lubricating material or sintered copper powder with the surface that sealed cover 50 fits, and to prevent lubricant pump generation dry friction interlock between housing 20 and the sealed cover 50 when the starting, described self lubricating material can be with reference to existing technology.
Making between housing 20 and the live axle 10 also has multiple implementation for being fixedly connected, and as preferred version of the present invention, the housing 20 and the live axle 10 of described lubricant pump are fixed together through resilient key 21.Referring to shown in Figure 1, be fixed together through two resilient keys 21 between housing 20 and the live axle 10, described resilient key 21 can be open circles cylindrical pin or straight pin, resilient key 21 the further lubricated pump structure of having simplified is set.
As the further preferred version of the present invention, the material of described external rotor 30, internal rotor 40 and sealed cover 50 is 35CrMo steel, 42CrMo steel or iron-base powder metallurgy material.
The intensity of 35CrMo steel and 42CrMo steel, hardenability height; Good toughness; And have higher creep strength and creep rupture strength, the hardness of iron-base powder metallurgy material, intensity, friction factor are all higher, and the produced external rotor of these three kinds of materials 30, internal rotor 40 and sealed cover 50 not only intensity are high; Long service life has also reduced the manufacturing cost of lubricant pump.
As shown in Figure 1, described datum clamp face 80 is provided with the fixing pin 81 that limits sealed cover 50 one-way rotation.
The setting of fixing pin 81 defines the moving direction of sealed cover 50, makes this lubricant pump can stably realize one-way pump oil, thereby has further guaranteed the smooth running of lubricated device.
Lubricant pump among the present invention adopts the structure of pump one; Have built-in integratedly and do not have the characteristics of external leakage, the lubricated liquid circulation of the heat that produces during lubricant pump work is taken away, and has guaranteed the operation of whole system stability and safety; The present invention has deducted middle transmission link; Realize lubricant pump and lubricated mechanism or the synchronous operation of device, not only improved the working efficiency of lubricant pump, also increased the operating life of lubricant pump.
Claims (6)
1. lubricant pump; The housing of lubricant pump (20) is fixedly connected with live axle (10); The inboard of housing (20) is provided with the external rotor (30) that is fixed together with it; The inboard of external rotor (30) is provided with the internal rotor (40) with its formation gerotor gear engagement; Be provided with sealed cover (50) between the datum clamp face (80) away from the end face of live axle (10) and lubricant pump of inside and outside rotor (40,30), sealed cover (50) constitutes with housing (20) and is rotatably assorted, the import (51) that sealed cover (50) is provided with eccentric opening and supplies the lubricant oil circulation with export (52); It is characterized in that: rotating shaft (70) is passed internal rotor (40) and described eccentric opening successively and is resisted against on the datum clamp face (80); Described live axle (10) drive shell (20) is rotated, and the import (51) on the lubricant oil selfsealings cover plate (50) sucks, and after the gear between the inner and outer rotors (40,30) is nibbled and pressurizeed, is discharged by the outlet (52) on the sealed cover (50); Be covered with sealing compensation plate (60) on the end face near live axle (10) of described external rotor (30) and internal rotor (40), be provided with pressure spring (90) between described sealing compensation plate (60) and the live axle (10).
2. lubricant pump according to claim 1 is characterized in that: for interference is connected, described housing (20) is tubular between described external rotor (30) and the housing (20).
3. lubricant pump according to claim 1 is characterized in that: described housing (20) is provided with self lubricating material or sintered copper powder with the surface that sealed cover (50) fits.
4. lubricant pump according to claim 1 is characterized in that: the housing of described lubricant pump (20) is fixed together through resilient key (21) with live axle (10).
5. lubricant pump according to claim 1 is characterized in that: the material of described external rotor (30), internal rotor (40) and sealed cover (50) is 35CrMo steel, 42CrMo steel or iron-base powder metallurgy material.
6. lubricant pump according to claim 1 is characterized in that: described live axle (10) for this lubricant pump the line shaft of the device of fuel feeding for it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101165439A CN101532603B (en) | 2009-04-15 | 2009-04-15 | Lubricating pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101165439A CN101532603B (en) | 2009-04-15 | 2009-04-15 | Lubricating pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101532603A CN101532603A (en) | 2009-09-16 |
| CN101532603B true CN101532603B (en) | 2012-07-04 |
Family
ID=41103373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101165439A Active CN101532603B (en) | 2009-04-15 | 2009-04-15 | Lubricating pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101532603B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182677B (en) * | 2011-06-01 | 2016-04-27 | 张意立 | A kind of four line engagement inner pressuring sealing new pump |
-
2009
- 2009-04-15 CN CN2009101165439A patent/CN101532603B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN101532603A (en) | 2009-09-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: HEFEI HUASHENG PUMPS + VALVES CO., LTD. Free format text: FORMER NAME: HEFEI HUASHENG PUMP + VALVE CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: Shuangfeng Economic Development Zone, Hefei city of Anhui Province Jin Huai road 231131 No. 6 Patentee after: HEFEI HUASHENG VALVE LIMITED BY SHARE LTD. Address before: High tech Development Zone in Hefei City, Anhui province 230088 Days Road No. 19 Tianyi International Business Center Room 306 Patentee before: Hefei Huasheng Pumps Valves Co., Ltd. |