CN103511683A - Wear-resisting one-way valve - Google Patents
Wear-resisting one-way valve Download PDFInfo
- Publication number
- CN103511683A CN103511683A CN201210210169.0A CN201210210169A CN103511683A CN 103511683 A CN103511683 A CN 103511683A CN 201210210169 A CN201210210169 A CN 201210210169A CN 103511683 A CN103511683 A CN 103511683A
- Authority
- CN
- China
- Prior art keywords
- valve body
- wear
- way valve
- macropore
- steel ball
- 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
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Classifications
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- 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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/04—Check valves with guided rigid valve members shaped as balls
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- 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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0209—Check valves or pivoted valves
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- 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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0245—Construction of housing; Use of materials therefor of lift valves with ball-shaped valve members
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
- Taps Or Cocks (AREA)
Abstract
The invention discloses a wear-resisting one-way valve which comprises a stop pin, a valve body and a steel ball. A valve body inner bore is a stepped hole formed by a large bore body and a small bore body, a wear-resisting ring made of hard alloy is embedded between the large bore body and the small bore body, and the left end face of the wear-resisting ring is provided with a tapered sealing face; the steel ball is arranged in the large bore body of the valve body, and the stop pin is arranged at the left end of the large bore body and penetrates through the wall of the large bore body. When the wear-resisting one-way valve works, on one hand, wear of the tapered sealing face is very small, and therefore the service life of the one-way valve is prolonged manyfold; on the other hand, the valve body is made of only common materials and does not need heat treatment, and therefore a process is simplified.
Description
Technical field
The present invention relates to a kind of hydraulic oil flow control apparatus, more particularly, the present invention relates to a kind of one-way valve of using on the hydraulic steering gear of engineering machinery of being applied to.
Background technique
Be applied to be provided with one-way valve on the hydraulic steering gear of engineering machinery, hydraulic oil can only flow to steering cylinder from valve body through one-way valve one direction; If hydraulic oil reverse flow, the steel ball in one-way valve body opening under the pressure of hydraulic oil, the conical seal (contact) face in dash valve body opening, and with it contact after block oil circuit.Because commutator commutation is frequent, the conical seal (contact) face in the continuous dash valve body opening of steel ball in valve body hole.One-way valve, in order to reach certain working life, just requires the conical seal (contact) face in valve body hole to have certain wear resistance.The conical seal (contact) face of the one-way valve of prior art is arranged in valve body hole, in order to make conical seal (contact) face there is certain wear resistance, valve body adopts the material (as 40Cr) of better mechanical property, and heat-treat, to guarantee that valve body reaches certain hardness (HRC45-55), but valve body after heat treatment, reached higher hardness (HRC45-55), conical seal (contact) face in valve body hole is just difficult to processing, and technology difficulty is larger; On the other hand, even if conical seal (contact) face has reached certain hardness (HRC45-55), but due to frequent commutation, steel ball is under larger hydraulic fluid pressure, frequent impact hardness is not sufficiently high conical seal (contact) face also, make very quick-wearing of conical seal (contact) face, when serious, puncture valve body, the working life of one-way valve is shorter.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, provide a kind of simple in structure, can simplify technique, significantly improve wear resistance, significantly increase the abrasion resistant type one-way valve in working life.
The present invention is achieved through the following technical solutions technical goal.
Abrasion resistant type one-way valve, it comprises backing pin, valve body and steel ball; Described valve body inner bore is the shoulder hole being comprised of macropore, aperture, and described steel ball is placed in the macropore of valve body; Described backing pin is placed in the macropore left end of valve body, runs through macropore hole wall; Its improvements are: between the macropore of described valve body, aperture, embed wear ring.
The further technological scheme of the present invention is, in wear ring left side, conical seal (contact) face is set.
The further technological scheme of the present invention is that described wear ring material is cemented carbide.
The present invention compared with prior art, has following good effect:
1. simple in structure, easily realize.
2. between the macropore of valve body, aperture, embed wear ring, conical seal (contact) face is arranged on wear ring.During one-way valve work, steel ball directly contacts with the conical seal (contact) face on wear ring, even if steel ball forms and impacts conical seal (contact) face continually under the hydraulic oil effect of larger pressure, but because wear ring material is cemented carbide, therefore wearing and tearing are less, and be multiplied the working life of one-way valve.
3. valve body only need adopt common material, and without heat treatment, has simplified technique.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
The invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments below.
Abrasion resistant type one-way valve shown in accompanying drawing 1, it comprises backing pin 1, valve body 2 and steel ball 3; Described valve body 2 endoporus are the shoulder hole being comprised of macropore 2.1, aperture 2.2, between macropore 2.1, aperture 2.2, embed wear ring 4, and wear ring 4 materials are cemented carbide,, in wear ring 4 left sides, conical seal (contact) face is set; Steel ball 3 is placed in the macropore 2.1 of valve body 2, and backing pin 1 is placed in the left end of the macropore 2.1 of valve body 2, runs through macropore 2.1 hole walls.When the present invention works, steel ball 3 directly contacts with the conical seal (contact) face on wear ring 4, even if steel ball 3 forms and impacts conical seal (contact) face continually under the hydraulic oil effect of larger pressure, but because wear ring 4 is cemented carbide, hardness is very high, therefore cone seal surface wear is less, and be multiplied the working life of one-way valve; On the other hand, 2 of valve bodies need to adopt common material, and without heat treatment, have simplified technique.
Claims (3)
1. an abrasion resistant type one-way valve, it comprises backing pin (1), valve body (2) and steel ball (3); Described valve body (2) endoporus is the shoulder hole being comprised of macropore (2.1), aperture (2.2), and described steel ball (3) is placed in the macropore (2.1) of valve body (2); Described backing pin (1) is placed in macropore (2.1) left end of valve body (2), runs through macropore (2.1) hole wall; It is characterized in that: between the macropore (2.1) of described valve body (2), aperture (2.2), embed wear ring (4).
2. abrasion resistant type one-way valve according to claim 1, is characterized in that: described wear ring (4) left side arranges conical seal (contact) face.
3. abrasion resistant type one-way valve according to claim 1, is characterized in that: described wear ring (4) material is cemented carbide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210210169.0A CN103511683A (en) | 2012-06-25 | 2012-06-25 | Wear-resisting one-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210210169.0A CN103511683A (en) | 2012-06-25 | 2012-06-25 | Wear-resisting one-way valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103511683A true CN103511683A (en) | 2014-01-15 |
Family
ID=49894875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210210169.0A Pending CN103511683A (en) | 2012-06-25 | 2012-06-25 | Wear-resisting one-way valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103511683A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105587452A (en) * | 2016-02-05 | 2016-05-18 | 成都威特电喷有限责任公司 | Electric unit pump with two-channel low-pressure oil internal circulation oil path |
| CN109058759A (en) * | 2018-08-16 | 2018-12-21 | 北京明晖天海气体储运装备销售有限公司 | A kind of device preventing gas tank overfilling |
| CN110775157A (en) * | 2018-07-30 | 2020-02-11 | 丹佛斯动力系统有限公司 | Hydraulic steering unit |
-
2012
- 2012-06-25 CN CN201210210169.0A patent/CN103511683A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105587452A (en) * | 2016-02-05 | 2016-05-18 | 成都威特电喷有限责任公司 | Electric unit pump with two-channel low-pressure oil internal circulation oil path |
| CN110775157A (en) * | 2018-07-30 | 2020-02-11 | 丹佛斯动力系统有限公司 | Hydraulic steering unit |
| CN110775157B (en) * | 2018-07-30 | 2022-03-15 | 丹佛斯动力系统有限公司 | Hydraulic steering unit |
| CN109058759A (en) * | 2018-08-16 | 2018-12-21 | 北京明晖天海气体储运装备销售有限公司 | A kind of device preventing gas tank overfilling |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140115 |