CN109268261B - High wear-resisting gear pump bush - Google Patents
High wear-resisting gear pump bush Download PDFInfo
- Publication number
- CN109268261B CN109268261B CN201710583523.7A CN201710583523A CN109268261B CN 109268261 B CN109268261 B CN 109268261B CN 201710583523 A CN201710583523 A CN 201710583523A CN 109268261 B CN109268261 B CN 109268261B
- Authority
- CN
- China
- Prior art keywords
- resistant
- wear
- gear shaft
- steel substrate
- shaft hole
- 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.)
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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
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
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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
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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
- F04C2240/00—Components
- F04C2240/60—Shafts
- F04C2240/605—Shaft sleeves or details thereof
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
The invention relates to a high wear-resistant gear pump bushing which comprises a 45 steel substrate, wherein a gear shaft hole is formed in the middle of the 45 steel substrate, one end of the gear shaft hole is leveled with one end of the 45 steel substrate, the other end of the 45 steel substrate is provided with a sealing ring hole, one end of the sealing ring hole is leveled with the other end of the 45 steel substrate, a PEK high-temperature-resistant wear-resistant sleeve is arranged on the inner wall of the gear shaft hole, and a sintered wear-resistant alloy copper layer is arranged on the end face of the 45 steel substrate on one side of the gear shaft hole. The invention has simple structure, high temperature resistance, slow wear and difficult deformation.
Description
Technical Field
The invention relates to a bushing, in particular to a gear pump bushing.
Background
In the prior art, gear pump bushings are processed and finished by adopting alloy copper or aluminum alloy materials, and in high-speed operation, high temperature is generated due to friction movement of a gear shaft and the bushing, and in high-temperature operation, alloy copper or aluminum alloy is easy to generate thermal deformation due to overhigh temperature and is stuck with the gear shaft, so that the gear and a shell are directly locked or damaged.
Disclosure of Invention
The invention aims to: the invention aims to overcome the defects in the prior art and provide the high-wear-resistance gear pump bushing which is simple in structure, resistant to high temperature, slow in wear and difficult to deform.
The technical scheme is as follows: in order to solve the technical problems, the high wear-resistant gear pump bushing comprises a 45 steel base body, wherein a gear shaft hole is formed in the middle of the 45 steel base body, one end of the gear shaft hole is leveled with one end of the 45 steel base body, a sealing ring hole is formed in the other end of the 45 steel base body, one end of the sealing ring hole is leveled with the other end of the 45 steel base body, a PEK high-temperature-resistant wear-resistant sleeve is arranged on the inner wall of the gear shaft hole, and a sintered wear-resistant alloy copper layer is arranged on the end face of the 45 steel base body on one side of the gear shaft hole.
And the PEK high-temperature-resistant wear-resistant sleeve is pressed into the gear shaft hole in an interference manner.
The unilateral thickness of the PEK high-temperature-resistant wear-resistant sleeve is 1.5mm.
The thickness of the sintered wear-resistant alloy copper layer is 0.8-1mm.
The beneficial effects are that: compared with the prior art, the invention has the remarkable advantages that: the invention has reasonable structure, the PEK high-temperature resistant wear-resistant sleeve is arranged at the contact part with the gear shaft, the sintered wear-resistant alloy copper layer is arranged at the contact part with the gear end surface, the bushing substrate is 45 steel, the PEK high-temperature resistant wear-resistant sleeve is replaceable, the whole product is high-temperature resistant and low in wear and difficult to deform, the gear is effectively protected, the service life of the gear pump is prolonged, and the practical use requirements are met.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Detailed Description
The invention is further described below with reference to the drawings and examples.
As shown in figure 1, the high wear-resistant gear pump bushing comprises a 45 steel matrix 1, wherein a gear shaft hole 2 is formed in the middle of the 45 steel matrix 1, one end of the gear shaft hole 2 is leveled with one end of the 45 steel matrix 1, the other end of the 45 steel matrix 1 is provided with a sealing ring hole 3, one end of the sealing ring hole 3 is leveled with the other end of the 45 steel matrix 1, a PEK high-temperature-resistant wear-resistant sleeve 4 is arranged on the inner wall of the gear shaft hole 2, and a sintered wear-resistant alloy copper layer 5 is arranged on the end face of the 45 steel matrix 1 on one side of the gear shaft hole 2; the PEK high-temperature-resistant wear-resistant sleeve 4 is pressed into the gear shaft hole 2 in an interference manner; the unilateral thickness of the PEK high-temperature-resistant wear-resistant sleeve 4 is 1.5mm; the thickness of the sintered wear-resistant alloy copper layer 5 is 0.8-1mm. The invention has reasonable structure, the PEK high-temperature resistant wear-resistant sleeve is arranged at the contact part with the gear shaft, the sintered wear-resistant alloy copper layer is arranged at the contact part with the gear end surface, the bushing substrate is 45 steel, the PEK high-temperature resistant wear-resistant sleeve is replaceable, the whole product is high-temperature resistant and low in wear and difficult to deform, the gear is effectively protected, the service life of the gear pump is prolonged, and the practical use requirements are met.
The present invention provides a method and a thought, and a method for implementing the technical scheme are numerous, the above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several improvements and modifications can be made, and these improvements and modifications should also be regarded as protection scope of the present invention, and each component that is not explicitly described in the present embodiment can be implemented by the prior art.
Claims (1)
1. A high wear resistant gear pump bushing, characterized in that: the gear comprises a 45 steel substrate (1), wherein a gear shaft hole (2) is formed in the middle of the 45 steel substrate (1), one end of the gear shaft hole (2) is leveled with one end of the 45 steel substrate (1), the other end of the 45 steel substrate (1) is provided with a sealing ring hole (3), one end of the sealing ring hole (3) is leveled with the other end of the 45 steel substrate (1), a PEK high-temperature-resistant wear-resistant sleeve (4) is arranged on the inner wall of the gear shaft hole (2), and a sintered wear-resistant alloy copper layer (5) is arranged on the end face of the 45 steel substrate (1) on one side of the gear shaft hole (2);
the PEK high-temperature-resistant wear-resistant sleeve (4) is pressed into the gear shaft hole (2) in an interference manner;
the unilateral thickness of the PEK high-temperature-resistant wear-resistant sleeve (4) is 1.5mm;
the thickness of the sintered wear-resistant alloy copper layer (5) is 0.8-1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710583523.7A CN109268261B (en) | 2017-07-18 | 2017-07-18 | High wear-resisting gear pump bush |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710583523.7A CN109268261B (en) | 2017-07-18 | 2017-07-18 | High wear-resisting gear pump bush |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109268261A CN109268261A (en) | 2019-01-25 |
| CN109268261B true CN109268261B (en) | 2023-10-10 |
Family
ID=65152650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710583523.7A Active CN109268261B (en) | 2017-07-18 | 2017-07-18 | High wear-resisting gear pump bush |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109268261B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3574492A (en) * | 1969-09-26 | 1971-04-13 | Gen Signal Corp | Bushing arrangement for rotary shafts |
| CN201363272Y (en) * | 2009-01-15 | 2009-12-16 | 武汉电缆集团有限公司 | Oil pump of dance wiredrawing oil circulation system |
| CN202441595U (en) * | 2012-01-19 | 2012-09-19 | 浙江双飞无油轴承股份有限公司 | Gear-pump floating-shaft-sleeve assembly |
| CN104976113A (en) * | 2015-06-13 | 2015-10-14 | 上海辛帕工业自动化有限公司 | Special conveying gear pump for high-viscosity glue |
| CN105570317A (en) * | 2016-03-02 | 2016-05-11 | 浙江双飞无油轴承股份有限公司 | Split type gear pump floating shaft sleeve combination piece and machining method thereof |
| CN105829718A (en) * | 2013-12-13 | 2016-08-03 | Ntn株式会社 | Internally meshing gear pump |
| CN106870349A (en) * | 2012-03-27 | 2017-06-20 | Ntn株式会社 | Composite sliding bearing, bracket guiding piece, variable capacity type axial poiston pump |
-
2017
- 2017-07-18 CN CN201710583523.7A patent/CN109268261B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3574492A (en) * | 1969-09-26 | 1971-04-13 | Gen Signal Corp | Bushing arrangement for rotary shafts |
| CN201363272Y (en) * | 2009-01-15 | 2009-12-16 | 武汉电缆集团有限公司 | Oil pump of dance wiredrawing oil circulation system |
| CN202441595U (en) * | 2012-01-19 | 2012-09-19 | 浙江双飞无油轴承股份有限公司 | Gear-pump floating-shaft-sleeve assembly |
| CN106870349A (en) * | 2012-03-27 | 2017-06-20 | Ntn株式会社 | Composite sliding bearing, bracket guiding piece, variable capacity type axial poiston pump |
| CN105829718A (en) * | 2013-12-13 | 2016-08-03 | Ntn株式会社 | Internally meshing gear pump |
| CN104976113A (en) * | 2015-06-13 | 2015-10-14 | 上海辛帕工业自动化有限公司 | Special conveying gear pump for high-viscosity glue |
| CN105570317A (en) * | 2016-03-02 | 2016-05-11 | 浙江双飞无油轴承股份有限公司 | Split type gear pump floating shaft sleeve combination piece and machining method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109268261A (en) | 2019-01-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20230906 Address after: 214241 Xuxu Town Industrial Zone, Yixing City, Wuxi, Jiangsu Applicant after: JIANGSU KENAILI MACHINERY MANUFACTURING Co.,Ltd. Address before: 214246 Xu She Zhen Fang Zhuang Ren Min Lu, Yixing City, Wuxi City, Jiangsu Province Applicant before: WUXI DEMEIJIA MACHINERY TECHNOLOGY Co.,Ltd. |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |