CN114427611A - Damping slide valve core structure with combination groove - Google Patents
Damping slide valve core structure with combination groove Download PDFInfo
- Publication number
- CN114427611A CN114427611A CN202111607859.5A CN202111607859A CN114427611A CN 114427611 A CN114427611 A CN 114427611A CN 202111607859 A CN202111607859 A CN 202111607859A CN 114427611 A CN114427611 A CN 114427611A
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- Prior art keywords
- valve core
- valve
- groove
- damping
- oil
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- 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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- 238000013016 damping Methods 0.000 title claims abstract description 29
- 238000007789 sealing Methods 0.000 claims abstract description 5
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 230000033001 locomotion Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000010349 pulsation Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000006173 Good's buffer Substances 0.000 description 1
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Images
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
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
- F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
- F16K11/07—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides
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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
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
- F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
- F16K11/07—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides
- F16K11/0708—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides comprising means to avoid jamming of the slide or means to modify the flow
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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
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
- F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
- F16K11/07—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides
- F16K11/0716—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides with fluid passages through the valve member
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
- F16K31/047—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor characterised by mechanical means between the motor and the valve, e.g. lost motion means reducing backlash, clutches, brakes or return means
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/50—Mechanical actuating means with screw-spindle or internally threaded actuating means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
Abstract
The invention relates to the field of hydraulic transmission, in particular to a spool valve with a combined groove, which comprises: the invention relates to a sliding valve, which comprises a left end cover, a valve core, a damping spring, a sealing ring, a valve body, a combined groove, an oil outlet cavity A, an oil outlet cavity B, an oil outlet cavity T, an oil inlet cavity P, a valve core oil through hole, a right end cover, a threaded connecting sleeve and a motor.
Description
Technical Field
The invention relates to the technical field of hydraulic transmission control valves, in particular to a valve core structure of a damping slide valve with a combined groove.
Background
At present, the hydraulic transmission technology makes great progress in the aspects of realizing high speed, high efficiency, low noise, digitization, intellectualization and the like. The hydraulic system consists of a power element, an execution element, a control element and an auxiliary element, and the hydraulic valve is used as the control element in the hydraulic control system, controls the oil liquid flowing direction in the hydraulic system, adjusts the flow rate and the system pressure of the hydraulic system and changes the working state of the hydraulic execution element. The hydraulic valve is divided into a slide valve, a cone valve and a ball valve according to a valve core structure. The slide valve is widely applied to hydraulic valves such as a reversing valve, a cartridge valve, a speed regulating valve and a servo valve, but the slide valve has vibration during operation, the flow field in the valve influences the working performance of the hydraulic valve, and has the problems of air pocket, valve core clamping stagnation, noise, flow pulsation and the like, the performance of the hydraulic valve can also cause adverse effects on the work of a hydraulic system and an execution element, the working efficiency of the execution element is directly influenced, and the service life of the hydraulic valve is shortened.
Disclosure of Invention
In order to overcome the defects in the background art, the invention aims to provide a valve core structure of a damping slide valve with a combined groove, so as to solve the problems of vibration, flow pulsation and uneven stress of the valve core in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
a damping slide valve spool structure with combination slots, comprising: the damping spring is a wave spring, is coaxial with the valve core and is arranged at two ends of the valve core, one end of the damping spring is in contact with a shoulder of the valve core, and the other end of the damping spring is abutted to the end cover.
As a preferred technical scheme of the invention, the combined groove is formed by a rectangular groove and a pressure equalizing groove.
As a preferable technical scheme of the invention, the combined groove is arranged at the right shoulder of the valve core and can be used for carrying out inlet throttling, and the combined groove is arranged at the shoulder of the valve core and can be used for carrying out inlet throttling.
As a preferable technical scheme of the invention, the two ends of the valve core are provided with valve core oil through holes to prevent oil from obstructing the movement of the valve core.
As a preferred technical scheme of the invention, the valve core shaft hole consists of a valve core coaxial hole and a valve core coaxial hole, and the valve core shaft holes are formed at two ends of the valve core to prevent the valve core from moving by oil liquid in the end cover cavity.
As a preferable technical scheme of the invention, the damping spring is a wave spring, and when the valve core does not move, the wave springs at two ends have a certain compression amount to keep the valve core in axial balance.
The valve core and the damping spring are coaxially installed, the two ends of the valve core are provided with valve core oil through holes, and the ends of the valve core and the threaded connection sleeve are threads.
The thread connecting sleeve is coaxially arranged with the valve core and is in key connection with the motor.
Compared with the prior hydraulic valve technology, the invention has the following beneficial effects: the utility model provides a damping slide valve case structure with combination groove improves the slide valve working property, improves the case and opens and stop and motion stability, makes the case axial force atress that receives even, has good buffer capacity, can absorb the impact, reduces case axial vibration, the combination groove improves the valve internal flow field, makes the case pressure distribution that receives even, reduces case radial vibration, prevents the case jamming, and antipollution ability is strong, and is with low costs, light in weight, damping spring occupation space is little.
Drawings
Fig. 1 is a schematic diagram of a valve core structure of a damping slide valve with a combination groove.
Fig. 2 is a view showing a valve body structure.
In FIG. 1: the oil-gas separation valve comprises a left end cover (1), a valve core (2), a damping spring (3), a sealing ring (4), a valve body (5), a combination groove (6), an oil outlet cavity A (7), an oil outlet cavity B (8), an oil outlet cavity T (9), an oil inlet cavity P (10), a valve core oil through hole (11), a right end cover (12), a threaded connecting sleeve (13) and a motor (14).
Detailed Description
In order to clearly illustrate the objects, technical solutions and advantages of the present invention, the following detailed description is given with reference to the accompanying drawings, but it should be understood that the detailed description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the innovation should be included in the protection scope of the invention.
As shown in fig. 1, a spool structure of a damping slide valve having a combination groove, is characterized in that: the oil-gas separation valve comprises a left end cover (1), a valve core (2), a damping spring (3), a sealing ring (4), a valve body (5), a combination groove (6), an oil outlet cavity A (7), an oil outlet cavity B (8), an oil outlet cavity T (9), an oil inlet cavity P (10), a valve core oil through hole (11), a right end cover (12), a threaded connecting sleeve (13) and a motor (14).
[ the valve core (2) and the damping spring (3) are coaxially installed, the two ends of the valve core (2) are provided with valve core oil through holes (11), the shoulder of the valve core (2) is provided with a combination groove (6), and the specific structure of the valve core (2) is shown in figure 2.
The combined groove (6) is formed by a rectangular groove and a pressure equalizing groove, and the specific structure is shown in figure 2.
The vibration reduction spring (3) is a wave spring.
The sealing ring (4) is arranged between the end cover and the main body (5).
The left end cover (1) and the right end cover (12) are in threaded connection with the valve body (5), the wave spring is installed at the tail end of the valve core (2), one end of the wave spring is in contact with the shoulder of the valve core (2), and the other end of the wave spring abuts against the end cover.
When the valve core (2) is in the middle position, the wave spring is in a compressed state, when the valve core (2) reaches the limit position of the right end, the wave spring at the left end is in an unstressed state, and when the valve core (2) reaches the limit position of the left end, the wave spring at the right end is in an unstressed state.
The motor (14), the thread connecting sleeve (13) and the valve core are coaxially arranged, valve core oil through holes are formed in two ends of the valve core (2), and the connecting end of the valve core and the thread connecting sleeve (13) is provided with threads.
The motor (14) rotates, and drives the threaded connecting sleeve to rotate through key connection, so that the valve core (2) is displaced, the opening degree is changed, oil flows in from the oil inlet cavity P (10), and the working state of the hydraulic system is controlled.
In the displacement process of the valve core (2), the combination groove (6) enables the flow field in the valve to be stable, the valve core (2) is stressed uniformly, and the wave spring reduces the radial vibration of the valve core (2).
The invention is mainly used for slide valves, and can also be used for two-position four-way valves, three-position three-way valves, three-position five-way valves and the like with similar structures. Through the design, the purposes of preventing the valve core from vibrating, enabling the circumferential stress of the valve core to be uniform, ensuring the stability of starting and stopping or working movement of the slide valve, preventing the valve core of the slide valve from being blocked, improving the flow field in the valve and improving the performance of the slide valve are achieved.
Claims (7)
1. A damping slide valve spool structure with combination slots, comprising: left end lid, case, damping spring, sealing washer, valve body, combination groove, oil outlet chamber A, oil outlet chamber B, oil outlet chamber T, oil inlet chamber P, case oil through hole, right-hand member lid, thread connection cover, motor, its characterized in that: the valve core and the damping spring are coaxially arranged in the valve body, a combined groove is formed in the position of the shoulder of the valve core, the combined groove is a combination of a rectangular groove and a pressure equalizing groove, the damping spring is arranged at two ends of the valve core and is abutted against the left end cover and the right end cover, and the shaft hole of the valve core is formed in two ends of the valve core.
2. The spool structure of a damping slide valve having an integrated groove according to claim 1, wherein: the combined groove is arranged at the right shoulder of the valve core and can be used for inlet throttling, and the combined groove is arranged at the left shoulder of the valve core and can be used for inlet throttling.
3. The spool structure of a damping slide valve having an integrated groove according to claim 1, wherein: the combined groove is composed of a pressure equalizing groove and a rectangular groove.
4. The spool structure of a damping slide valve having an integrated groove according to claim 1, wherein: and valve core holes are formed in two ends of the valve core and consist of a coaxial hole in the valve core and a coaxial hole in the valve core.
5. The spool structure of a damping slide valve having an integrated groove according to claim 1, wherein: the damping spring is a wave spring, the wave spring is arranged at two ends of the valve core, and the wave spring is in a compressed state when the valve core is in the middle position.
6. The spool structure of a damping slide valve having an integrated groove according to claim 1, wherein: the two ends of the valve core are provided with valve core oil through holes, the left end of the valve core is connected with the left end cover in a spline mode, the right end of the valve core is connected with the threaded connecting sleeve through threads, the motor is connected with the connecting sleeve through keys, and the motor rotates to drive the threaded connecting sleeve to rotate so that the valve core moves.
7. The spool structure of a damping slide valve having an integrated groove according to claim 1, wherein: the valve core is coaxially arranged with the motor, the thread connecting sleeve, the left end cover and the right end cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111607859.5A CN114427611A (en) | 2021-12-22 | 2021-12-22 | Damping slide valve core structure with combination groove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111607859.5A CN114427611A (en) | 2021-12-22 | 2021-12-22 | Damping slide valve core structure with combination groove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114427611A true CN114427611A (en) | 2022-05-03 |
Family
ID=81311352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111607859.5A Pending CN114427611A (en) | 2021-12-22 | 2021-12-22 | Damping slide valve core structure with combination groove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114427611A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103411001A (en) * | 2013-08-01 | 2013-11-27 | 江海兵 | Excitation valve |
| CN204284530U (en) * | 2014-11-01 | 2015-04-22 | 宁波盛达阳光气动机械有限公司 | Two-position five-way double gas control valve |
| CN105822794A (en) * | 2016-05-17 | 2016-08-03 | 华南理工大学 | Valve |
| CN206592578U (en) * | 2017-03-06 | 2017-10-27 | 山东临工工程机械有限公司 | A kind of use throttling channel controls the main control valve valve rod of flow area |
| CN206845918U (en) * | 2017-06-27 | 2018-01-05 | 哈尔滨理工大学 | A kind of ball valve core with vibration-proof structure |
| US9970464B1 (en) * | 2013-04-27 | 2018-05-15 | Zhejiang University Of Technology | Pre-tensioning-pre-twisting full-bridge 2D electro-hydraulic proportional directional valve |
| CN110594475A (en) * | 2018-06-12 | 2019-12-20 | 北京华德液压工业集团有限责任公司 | Motor-driven digital valve |
| CN113309754A (en) * | 2021-05-26 | 2021-08-27 | 涌镇液压机械（上海）有限公司 | Valve core structure of proportional reversing valve |
-
2021
- 2021-12-22 CN CN202111607859.5A patent/CN114427611A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9970464B1 (en) * | 2013-04-27 | 2018-05-15 | Zhejiang University Of Technology | Pre-tensioning-pre-twisting full-bridge 2D electro-hydraulic proportional directional valve |
| CN103411001A (en) * | 2013-08-01 | 2013-11-27 | 江海兵 | Excitation valve |
| CN204284530U (en) * | 2014-11-01 | 2015-04-22 | 宁波盛达阳光气动机械有限公司 | Two-position five-way double gas control valve |
| CN105822794A (en) * | 2016-05-17 | 2016-08-03 | 华南理工大学 | Valve |
| CN206592578U (en) * | 2017-03-06 | 2017-10-27 | 山东临工工程机械有限公司 | A kind of use throttling channel controls the main control valve valve rod of flow area |
| CN206845918U (en) * | 2017-06-27 | 2018-01-05 | 哈尔滨理工大学 | A kind of ball valve core with vibration-proof structure |
| CN110594475A (en) * | 2018-06-12 | 2019-12-20 | 北京华德液压工业集团有限责任公司 | Motor-driven digital valve |
| CN113309754A (en) * | 2021-05-26 | 2021-08-27 | 涌镇液压机械（上海）有限公司 | Valve core structure of proportional reversing valve |
Non-Patent Citations (1)
| Title |
|---|
| 汪育才等: "液压舵机与液压起货机", 31 December 1984, 人民交通出版社, pages: 326 - 327 * |
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