CN111188801B - Two-position six-way hydraulic control reversing valve - Google Patents
Two-position six-way hydraulic control reversing valve Download PDFInfo
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- CN111188801B CN111188801B CN202010032655.2A CN202010032655A CN111188801B CN 111188801 B CN111188801 B CN 111188801B CN 202010032655 A CN202010032655 A CN 202010032655A CN 111188801 B CN111188801 B CN 111188801B
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- oil
- valve
- oil passage
- duct
- valve cavity
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
Abstract
The invention discloses a novel two-position six-way hydraulic control reversing valve which comprises a valve body, wherein a valve cavity is formed in the valve body, a valve core is embedded in the valve cavity, three annular grooves are sequentially formed in the side surface of the valve core around the central shaft of the valve core, and an oil inlet oil duct and a working oil duct which are communicated with the valve cavity are further formed in the valve body; the invention solves the problem that if an actuating mechanism connected with two non-conductive oil ways behind a valve needs to follow up, a valve element needs to be added between the two oil ways to realize the purpose.
Description
Technical Field
The invention belongs to the technical field of hydraulic pressure, and relates to a two-position six-way hydraulic control reversing valve.
Background
The two-position six-way reversing valve is generally used for realizing switching between high pressure and low pressure or switching between two mutually independent actuating mechanisms, the graphic symbol of the conventional two-position six-way reversing valve is generally shown in figure 2, when the two-position six-way reversing valve is used for switching between the two mutually independent actuating mechanisms, two non-conductive oil ways are independently sealed, the corresponding actuating mechanisms cannot act, if the actuating mechanism between the two non-conductive oil ways behind the valve needs to follow up, a valve element needs to be added between the two oil ways for realization, the number of the valve elements is increased, and the reliability of a system is reduced.
Disclosure of Invention
The invention aims to provide a two-position six-way hydraulic control reversing valve, which solves the problem that an actuating mechanism between two non-conductive oil ways behind a valve needs to be followed by adding a valve piece between the two oil ways to realize the two-position six-way reversing valve without the two non-conductive oil ways behind the valve which are mutually communicated.
The technical scheme adopted by the invention is as follows: a two-position six-way hydraulic control reversing valve comprises a valve body, wherein a valve cavity is formed in the valve body, a valve core is embedded in the valve cavity, three annular grooves are sequentially formed in the side surface of the valve core around the central shaft of the valve core, and an oil inlet oil duct and a working oil duct which are communicated with the valve cavity are further formed in the valve body;
the valve comprises a valve body and a valve cavity, wherein a valve core is arranged in the valve cavity, the valve cavity is provided with a valve hole, the valve core is provided with a valve cavity opening, the valve cavity opening is communicated with the valve cavity, the valve core is provided with a control oil duct communicated with the valve cavity, the valve cavity opening is communicated with the control oil duct, the valve core is provided with a return spring, the outer ring of the return spring is further sleeved with a limiting spacer bush, the limiting spacer bush is embedded into the valve cavity, the opening of the valve cavity is provided with a plug screw, the end, far away from the valve cavity opening, of the valve body is provided with a control oil duct communicated with the valve cavity, the end, near the valve cavity opening, of the valve body is provided with an oil drainage oil duct communicated with the valve cavity, and the oil drainage oil duct is further provided with an oil duct, and the two ends of the oil duct are respectively communicated with the control oil duct and the oil drainage oil duct.
The invention is also characterized in that:
the oil inlet oil duct and the working oil duct are 6 oil ducts, the 6 oil ducts are divided into three groups, one group of oil inlet oil ducts is an oil duct A and an oil duct B, the two groups of working oil ducts are an oil duct C, an oil duct D, an oil duct E and an oil duct F, the oil ducts A and the oil ducts B are communicated with the oil duct C and the oil duct D respectively when in normal position, and the oil duct E and the oil duct F are sealed; when the position is changed, the oil duct A and the oil duct B are respectively communicated with the oil duct E and the oil duct F, and the oil duct C is communicated with the oil duct D;
a sealing ring is sleeved between the screw plug and the opening of the valve cavity;
the oil duct is also internally embedded with a throttling plug, and the center of the throttling plug is provided with a damping hole;
wherein the throttle plug is connected with the oil passage through a thread structure.
The invention has the beneficial effects that:
the two-position six-way hydraulic control reversing valve adopts hydraulic control, ensures the reversing reliability of the two-position six-way reversing valve, and does not need an additional reversing power source; through the innovative structural design, the non-conductive two oil ways behind the valve are communicated with each other, and the problem that if an actuating mechanism connected with the non-conductive two oil ways behind the valve needs to follow up, a valve piece needs to be added between the two oil ways is solved.
Drawings
FIG. 1 is a graphical symbol of a two-position, six-way, pilot operated directional control valve of the present invention;
FIG. 2 is a graphical symbol of a prior art two-position six-way directional valve;
FIG. 3 is a schematic illustration of a two-position, six-way pilot operated directional control valve of the present invention in the normal position;
FIG. 4 is a schematic illustration of a two-position, six-way, pilot operated directional control valve of the present invention in the reverse position;
FIG. 5 is a schematic diagram of the oil passage formed in the valve body of the two-position six-way hydraulic control directional valve of the present invention;
fig. 6 is a partial enlarged view of an oil passage formed in a valve body of the two-position six-way hydraulic control directional valve according to the invention.
In the figure, 1, a valve body, 2, a valve cavity, 3, a valve core, 4, a return spring, 5, a limiting spacer, 6, a screw plug, 7, a control oil duct, 8, an oil drainage oil duct, 9, a throttling plug, 10, a sealing ring, 11, oil ducts A, 12, oil ducts B, 13, oil ducts C, 14, oil ducts D, 15, oil ducts E, 16, oil ducts F and 17 and oil ducts are arranged.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
The invention provides a two-position six-way hydraulic control reversing valve, which comprises a valve body 1, wherein a valve cavity 2 is arranged in the valve body 1, a valve core 3 is embedded in the valve cavity 2, three annular grooves are sequentially formed in the side surface of the valve core 3 around the central shaft of the valve core 3, 6 oil passages including an oil inlet oil passage and a working oil passage which are communicated with the valve cavity 2 are further formed in the valve body 1, the 6 oil passages are divided into three groups, one group of the oil inlet oil passages is an oil passage A11 and an oil passage B12, the two groups of the working oil passages are an oil passage C13, an oil passage D14, an oil passage E15 and an oil passage F16, the oil passages A11 and the oil passage B12 are respectively communicated with the oil passage C13 and the oil passage D14 when the valve is in a normal position, and the oil passages E15 and F16 are sealed; when the direction is changed, the oil passage A11 and the oil passage B12 are respectively communicated with the oil passage E15 and the oil passage F16, and the oil passage C13 is communicated with the oil passage D14;
the reset spring 4 is arranged at one end of the valve core 3 close to the opening of the valve cavity 2, the outer ring of the reset spring 4 is also sleeved with a limiting spacer 5, the limiting spacer 5 is embedded in the valve cavity 2, the opening of the valve cavity 2 is provided with a plug screw 6, the opening of the valve cavity 2 is provided with a thread structure matched with the plug screw 6, one end of the plug screw 6 extending into the valve cavity 2 is close to the limiting spacer 5, a sealing ring 10 is further sleeved between the plug screw 6 and the opening of the valve cavity 2 to prevent oil leakage at the plug screw 6, one end of the valve body 1 far away from the opening of the valve cavity 2 is provided with a control oil duct 7 communicated with the valve cavity 2, one end of the valve body 1 close to the opening of the valve cavity 2 is provided with an oil drainage oil duct 8 communicated with the valve cavity 2, the oil duct 17 can be arranged on the valve core 3, as shown in figures 5 and 6, two ends of the oil duct 17 are respectively communicated with the control oil duct 7 and the oil drainage oil duct 8, a throttling oil duct plug 9 is further arranged in the oil duct 17, the center of the throttle plug 9 is provided with a damping hole, the throttle plug 9 is connected with the oil duct 17 through a threaded structure, when the damping hole is adjusted according to actual conditions, the throttle plug 9 is only required to be replaced, and the damping holes with different aperture sizes can be opened on the throttle plug 9.
During assembly, a main valve core 3 is arranged in a valve cavity 2 arranged in a valve body 1, a return spring 4 is placed in the valve cavity 2, a return spacer 5 sleeved on the outer ring of the return spring 4 is embedded in the valve cavity 2, and finally a plug screw 6 is screwed to compress a seal ring 10 to prevent oil leakage at the plug screw 6, wherein the specific assembly relation is shown in fig. 3;
the working principle of the invention is as follows:
the valve is generally used as a group of oil inlet oil passages (an oil passage A11 and an oil passage B12), the motion reversing of the valve core 3 of the valve is realized by controlling oil in an oil passage 7, and the communication between the group of oil inlet oil passages (the oil passage A11 and the oil passage B12) and the other two groups of working oil passages (the oil passage C13 and the oil passage D14 are in one group, and the oil passage E15 and the oil passage F16 are in the other group) is switched to realize that one group of oil inlet controls two different actuating mechanisms, the reversing is driven in a hydraulic control mode in the valve action principle, an electromagnet, a handle, an ejector rod, a roller and the like can be connected at the left end of the valve core 3 to drive the valve core to reverse, and the working process is as follows:
1) when the valve is in a normal position, no pressure oil passes through the control oil duct 7, the valve core is pushed to the leftmost end of the valve cavity under the action of the spring force of the return spring, the oil duct A11 is communicated with the oil duct C13, the oil duct 12B is communicated with the oil duct D14, the oil duct 15E and the oil duct F16 are both sealed, and the valve is in the state shown in FIG. 3;
2) when reversing, pressure oil enters the valve cavity 2 through the control oil duct 7 and acts on the left end of the valve core 3, at the moment, oil is drained from a return spring cavity at the right end of the valve core 3, almost no pressure exists, the valve core 3 moves towards the right end under the action of pressure difference at two ends until the right end reaches a limit position limited by a spacer sleeve, namely, the valve core 3 can be pushed to move towards the right after the high-pressure control oil overcomes the elastic force of the return spring 4 until the position limited by the limit spacer sleeve 5 is reached, at the moment, the oil duct A11 is communicated with the oil duct E15, the oil duct B12 is communicated with the oil duct F16, the oil ducts C13 and the oil duct D14 are communicated, the state of the valve is shown in fig. 4, at the moment, the executing mechanism connected with the oil ducts E15 and the oil duct F16 acts, the executing mechanism connected with the oil ducts C13 and the oil duct D14 can follow up due to the communication of the oil ducts C13 and D14, and the state of the valve is shown in fig. 4;
3) when the valve is reset, the control oil in the control oil duct 7 is cut off, the pressure oil in the control oil duct 7 is rapidly released through a damping hole arranged on a throttle plug 9 in the valve core 3, so that the valve core 3 can rapidly respond to the movement towards the left end under the action of the spring force of the reset spring 4, and because the valve core 3 moves, the volume of the valve cavity 2 at the left end of the valve core 3 is reduced, and redundant hydraulic oil can be directly discharged to the oil drainage oil duct 8 through the damping hole, so that the reversing reliability is ensured not to be influenced by the pressure build-up of the valve cavity at the left end of the valve core 3, and after the reset action is finished, the state of the valve is shown in fig. 3.
Claims (2)
1. The two-position six-way hydraulic control reversing valve is characterized by comprising a valve body (1), wherein a valve cavity (2) is formed in the valve body (1), a valve core (3) is embedded in the valve cavity (2), three annular grooves are sequentially formed in the side surface of the valve core (3) around the central shaft of the valve core (3), and an oil inlet oil duct and a working oil duct which are communicated with the valve cavity (2) are further formed in the valve body (1);
the valve core (3) is provided with a reset spring (4) close to one end of an opening of the valve cavity (2), the outer ring of the reset spring (4) is further sleeved with a limiting spacer bush (5), the limiting spacer bush (5) is embedded into the valve cavity (2), a screw plug (6) is arranged at the opening of the valve cavity (2), one end, far away from the opening of the valve cavity (2), of the valve body (1) is provided with a control oil duct (7) communicated with the valve cavity (2), one end, close to the opening of the valve cavity (2), of the valve body (1) is provided with an oil drainage duct (8) communicated with the valve cavity (2), and the valve core further comprises an oil duct (17), and two ends of the oil duct (17) are respectively communicated with the control oil duct (7) and the oil drainage duct (8);
a sealing ring (10) is sleeved between the screw plug (6) and the opening of the valve cavity (2);
a throttling plug (9) is further embedded in the oil duct (17), and a damping hole is formed in the center of the throttling plug (9); the throttle plug (9) is connected with the oil passage (17) through a thread structure.
2. The two-position six-way hydraulic control reversing valve according to claim 1, wherein the oil inlet oil passage and the working oil passage comprise 6 oil passages, the 6 oil passages are divided into three groups, one group of oil inlet oil passage is an oil passage A (11) and an oil passage B (12), the two groups of working oil passages are an oil passage C (13), an oil passage D (14), an oil passage E (15) and an oil passage F (16), the oil passage A (11) and the oil passage B (12) are respectively communicated with the oil passage C (13) and the oil passage D (14) in normal position, and the oil passage E (15) and the oil passage F (16) are sealed; the oil passage A (11) and the oil passage B (12) are respectively communicated with the oil passage E (15) and the oil passage F (16) during bit changing, and the oil passage C (13) is communicated with the oil passage D (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010032655.2A CN111188801B (en) | 2020-01-13 | 2020-01-13 | Two-position six-way hydraulic control reversing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010032655.2A CN111188801B (en) | 2020-01-13 | 2020-01-13 | Two-position six-way hydraulic control reversing valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111188801A CN111188801A (en) | 2020-05-22 |
| CN111188801B true CN111188801B (en) | 2022-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010032655.2A Active CN111188801B (en) | 2020-01-13 | 2020-01-13 | Two-position six-way hydraulic control reversing valve |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113431946B (en) * | 2021-06-04 | 2022-06-14 | 杭州爱力智控技术有限公司 | Integrated pressure-adjustable electromagnetic directional valve |
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| JPS5565773A (en) * | 1978-11-06 | 1980-05-17 | Robertshaw Controls Co | Reversing valve structure |
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Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103953603A (en) * | 2014-05-21 | 2014-07-30 | 江苏汉盛海洋装备技术有限公司 | Self-circulating type three-position six-way electromagnetic directional valve |
| CN108488127B (en) * | 2018-04-29 | 2023-11-14 | 锦州力特液压科技有限公司 | Two-position reversing valve group for actuating mechanism of full-hydraulic tunnel drilling machine |
| CN209781327U (en) * | 2019-04-02 | 2019-12-13 | 宁波市博尔法液压有限公司 | Electrohydraulic control multi-way valve |
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2020
- 2020-01-13 CN CN202010032655.2A patent/CN111188801B/en active Active
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4112974A (en) * | 1976-10-29 | 1978-09-12 | Sundstrand Corporation | Reversing valve |
| JPS5565773A (en) * | 1978-11-06 | 1980-05-17 | Robertshaw Controls Co | Reversing valve structure |
| CN1313932A (en) * | 1999-06-10 | 2001-09-19 | 日立建机株式会社 | Volume control valve of variable displacement hydraulic rotating machine |
| CN2839687Y (en) * | 2005-07-22 | 2006-11-22 | 上海立新液压有限公司 | Two-position six-way guiding reversing valve |
| CN201173221Y (en) * | 2008-02-29 | 2008-12-31 | 中国船舶重工集团公司第七一三研究所 | Electrohydraulic servo system power-off protection device |
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| CN101737370A (en) * | 2010-01-29 | 2010-06-16 | 浙江大学 | Fast hydraulic change-over valve |
| CN102297172A (en) * | 2010-07-30 | 2011-12-28 | 三一重工股份有限公司 | Hydraulic directional control valve, hydraulic directional control valve box and control method of hydraulic directional control valve |
| CN101943192A (en) * | 2010-10-15 | 2011-01-12 | 镇江安达煤矿专用设备有限公司 | Two-position six-way speed regulating valve for double-motor driven drill |
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| CN202531518U (en) * | 2012-05-13 | 2012-11-14 | 合肥长源液压股份有限公司 | Reversing valve plate with manual control and hydraulic control functions |
| CN103950850A (en) * | 2014-05-16 | 2014-07-30 | 安徽柳工起重机有限公司 | Revolving platform hydraulic braking system of automobile crane |
| CN105114663A (en) * | 2015-08-20 | 2015-12-02 | 常德中联重科液压有限公司 | Dynamic reversing method for reversing valve, reversing valve and reversing valve structure |
| WO2017198103A1 (en) * | 2016-05-16 | 2017-11-23 | 张未鸣 | T-shaped valve and combined reversing valve thereof |
| CN107882800A (en) * | 2017-12-15 | 2018-04-06 | 山西精艺液压制造有限公司 | A kind of double oil circuit control hydraulicdirectional control valve groups |
| CN108518376A (en) * | 2018-05-18 | 2018-09-11 | 宁波真格液压科技有限公司 | A kind of automatic diverter valve |
| CN110566531A (en) * | 2019-10-16 | 2019-12-13 | 湖南鸿辉科技有限公司 | Hydraulic control reversing valve for controlling multiple oil ways |
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Effective date of registration: 20200927 Address after: Baoji City, Shaanxi Province, 721002 Dongfeng Road, Jintai District No. 2 Applicant after: Baoji Oilfield Machinery Co.,Ltd. Applicant after: CHINA NATIONAL PETROLEUM Corp. Applicant after: CNPC national oil and gas drilling equipment Engineering Technology Research Center Co., Ltd Address before: Baoji City, Shaanxi Province, 721002 Dongfeng Road, Jintai District No. 2 Applicant before: Baoji Oilfield Machinery Co.,Ltd. |
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