CN111174078A - Single-side support oil pump with chain wheel - Google Patents
Single-side support oil pump with chain wheel Download PDFInfo
- Publication number
- CN111174078A CN111174078A CN202010203108.6A CN202010203108A CN111174078A CN 111174078 A CN111174078 A CN 111174078A CN 202010203108 A CN202010203108 A CN 202010203108A CN 111174078 A CN111174078 A CN 111174078A
- Authority
- CN
- China
- Prior art keywords
- pump
- side support
- chain wheel
- oil pump
- transmission shaft
- 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
- 230000005540 biological transmission Effects 0.000 claims abstract description 20
- 230000007547 defect Effects 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N13/00—Lubricating-pumps
- F16N13/20—Rotary pumps
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
The invention provides a single-side support oil pump with a chain wheel, which comprises a pump body, a pump cover, a transmission shaft and the chain wheel; a shaft hole is formed between the pump body and the pump cover alternatively, the other one of the pump body and the pump cover is free of the shaft hole, the shaft hole comprises a first supporting hole section and a second supporting hole section, the first supporting hole section is arranged on the body of the pump body or the pump cover, and the second supporting hole section is arranged on an extending part on the outer side of the pump body or the pump cover; the transmission shaft penetrates through a shaft hole of the pump body or the pump cover, one end of the transmission shaft extends into a pump cavity of the oil pump, and the other end of the transmission shaft extends outwards and is fixedly connected with the chain wheel. The oil pump can simultaneously take advantages of single-side support and double-side support into consideration, and can avoid the defects of the single-side support and the double-side support.
Description
Technical Field
The invention relates to an engine lubrication system component, in particular to a single-side support oil pump with a chain wheel.
Background
In the prior art, the oil pump can be divided into a single-side support oil pump and a double-side support oil pump according to the connection relationship between a shaft hole of the oil pump and a transmission shaft. Generally, only a shaft hole is formed in the pump body for installing a transmission shaft, or only a shaft hole is formed in the pump cover for installing a transmission shaft, and the pump body and the pump cover both belong to single-side support oil pumps; only the pump body and the pump cover are provided with shaft holes for installing transmission shafts, and the pump belongs to the double-side support oil pump. The single-side support oil pump and the double-side support oil pump respectively have advantages and disadvantages, and are generally selected according to the structure and the space of an engine cylinder body. For the single-side support oil pump, a bush needs to be added in the shaft hole, and a shaft hole boss needs to be formed on the inner side of the pump body or the pump cover to prolong the length of the shaft hole so as to meet the strength requirement of the use working condition; for the oil pump with double side supports, the shaft holes of the pump body and the pump cover are respectively and independently processed, so that a larger fit clearance is needed to be adopted in order to ensure the assembly flexibility.
Disclosure of Invention
The invention aims to provide a single-side support oil pump with a chain wheel, which can simultaneously take the advantages of single-side support and double-side support into consideration and avoid the defects of the single-side support and the double-side support.
In order to solve the technical problems, the invention adopts the following technical scheme: a single-side support oil pump with a chain wheel comprises a pump body, a pump cover, a transmission shaft and the chain wheel; a shaft hole is formed between the pump body and the pump cover alternatively, the other one of the pump body and the pump cover is free of the shaft hole, the shaft hole comprises a first supporting hole section and a second supporting hole section, the first supporting hole section is arranged on the body of the pump body or the pump cover, and the second supporting hole section is arranged on an extending part on the outer side of the pump body or the pump cover; the transmission shaft penetrates through a shaft hole of the pump body or the pump cover, one end of the transmission shaft extends into a pump cavity of the oil pump, and the other end of the transmission shaft extends outwards and is fixedly connected with the chain wheel.
Preferably, the first support hole section and the second support hole section have a certain distance.
In one embodiment, the oil pump is a variable vane pump.
The invention has the beneficial effects that:
1. according to the invention, double support is realized on one side (pump body or pump cover side) of the oil pump, the single-side double support is equivalent to the single support on two sides, positioning can be simultaneously considered, and the use reliability of the oil pump is met;
2. compared with a bilateral support structure, the unilateral double support structure can omit a positioning pin, simplify the structure, reduce the number of parts and be beneficial to saving the cost;
3. the single-side double support can eliminate the bush (part) of the single-side single support, thereby achieving the effect of double-side support.
4. The unilateral is two to be supported, and the shaft hole is come out through once machining, can set up littleer fit clearance, improves the operation reliability to raise the efficiency.
Drawings
FIG. 1 is a schematic structural view of a vane pump according to an embodiment of the present invention;
FIG. 2 is a schematic side view of a vane pump according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a pump body according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a pump cover structure according to an embodiment of the present invention;
the reference signs are:
1-screw 2-variable spring 3-electromagnetic valve
4-vane 5-rotating pin 6-positioning ring
7-variable slide block 8-rectangular sealing strip 9-rubber rod
10-pump cover 11-transmission shaft 12-pump body
13-positioning sleeve 14-chain wheel 15-first supporting hole section
16-second support hole section.
Detailed Description
In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.
In the description of the present invention, it is to be understood that the terms "first", "second" and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. In the description of the present invention, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, mechanically or electrically connected, or interconnected between two elements, directly or indirectly through intervening media, and the specific meaning of the terms may be understood by those skilled in the art according to their specific situation.
As shown in fig. 1, the preferred embodiment of the present invention is: a single-side support variable vane pump with a chain wheel comprises a screw 1, an electromagnetic valve 3, a pump body 12, a pump cover 10, a transmission shaft 11 and a chain wheel 14, wherein a positioning sleeve 13, a rotor cavity and a shaft hole are arranged on the pump body 12, and the pump cover 10 is not provided with the shaft hole; the rotor cavity is internally provided with a rotor, a blade 4, a rotating pin 5, a positioning ring 6, a variable slider 7, a variable spring 2, a rectangular sealing strip 8 and a rubber rod 9, the shaft hole comprises a first supporting hole section 15 and a second supporting hole section 16, the first supporting hole section 15 is arranged on the body of the pump body 12, the second supporting hole section 16 is arranged on an outer extending part of the pump body 12, and a certain distance is reserved between the first supporting hole section and the second supporting hole section; the transmission shaft 11 penetrates through the shaft hole of the pump body 12, one end of the transmission shaft extends into the rotor cavity of the pump body 12 to be fixedly connected with the rotor, and the other end of the transmission shaft extends outwards and is fixedly connected with the chain wheel 14.
The above embodiments are preferred implementations of the present invention, and the present invention can be implemented in other ways without departing from the spirit of the present invention.
Some of the drawings and descriptions of the present invention have been simplified to facilitate the understanding of the improvements over the prior art by those skilled in the art, and some other elements have been omitted from this document for the sake of clarity, and it should be appreciated by those skilled in the art that such omitted elements may also constitute the subject matter of the present invention.
Claims (3)
1. A single-side support oil pump with a chain wheel comprises a pump body (12), a pump cover (10), a transmission shaft (11) and the chain wheel (14); the method is characterized in that: a shaft hole is formed between the pump body (12) and the pump cover (10) alternatively, the other one has no shaft hole, the shaft hole comprises a first support hole section (15) and a second support hole section (16), wherein the first support hole section (15) is arranged on the body of the pump body (12) or the pump cover (10), and the second support hole section is arranged on the extension part outside the pump body (12) or the pump cover (10); the transmission shaft (11) penetrates through a shaft hole of the pump body (12) or the pump cover (10), one end of the transmission shaft extends into a pump cavity of the oil pump, and the other end of the transmission shaft extends outwards and is fixedly connected with the chain wheel (14).
2. The single-side support oil pump with the chain wheel as claimed in claim 1, wherein: the first support opening section (15) and the second support opening section (16) have a distance.
3. The single-side support oil pump with the chain wheel as claimed in claim 1 or 2, wherein: the oil pump is a variable vane pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010203108.6A CN111174078A (en) | 2020-03-20 | 2020-03-20 | Single-side support oil pump with chain wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010203108.6A CN111174078A (en) | 2020-03-20 | 2020-03-20 | Single-side support oil pump with chain wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111174078A true CN111174078A (en) | 2020-05-19 |
Family
ID=70621760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010203108.6A Pending CN111174078A (en) | 2020-03-20 | 2020-03-20 | Single-side support oil pump with chain wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111174078A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201428588Y (en) * | 2009-06-05 | 2010-03-24 | 山东华源莱动内燃机有限公司 | Oil pump |
| CN201982945U (en) * | 2010-10-29 | 2011-09-21 | 南京创新机油泵制造有限公司 | Oil pump assembly |
| CN203656543U (en) * | 2013-12-29 | 2014-06-18 | 山东华源莱动内燃机有限公司 | Engine oil pump |
| CN205014009U (en) * | 2015-09-28 | 2016-02-03 | 湖南机油泵股份有限公司 | Two step change discharge capacity oil pump of machinery valve accuse |
| CN105351028A (en) * | 2015-11-04 | 2016-02-24 | 湖南机油泵股份有限公司 | Primary variable displacement vane pump |
| CN211853493U (en) * | 2020-03-20 | 2020-11-03 | 湖南机油泵股份有限公司 | Single-side support oil pump with chain wheel |
-
2020
- 2020-03-20 CN CN202010203108.6A patent/CN111174078A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201428588Y (en) * | 2009-06-05 | 2010-03-24 | 山东华源莱动内燃机有限公司 | Oil pump |
| CN201982945U (en) * | 2010-10-29 | 2011-09-21 | 南京创新机油泵制造有限公司 | Oil pump assembly |
| CN203656543U (en) * | 2013-12-29 | 2014-06-18 | 山东华源莱动内燃机有限公司 | Engine oil pump |
| CN205014009U (en) * | 2015-09-28 | 2016-02-03 | 湖南机油泵股份有限公司 | Two step change discharge capacity oil pump of machinery valve accuse |
| CN105351028A (en) * | 2015-11-04 | 2016-02-24 | 湖南机油泵股份有限公司 | Primary variable displacement vane pump |
| CN211853493U (en) * | 2020-03-20 | 2020-11-03 | 湖南机油泵股份有限公司 | Single-side support oil pump with chain wheel |
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