CN111911655A - Stop type electric valve - Google Patents
Stop type electric valve Download PDFInfo
- Publication number
- CN111911655A CN111911655A CN202010830052.7A CN202010830052A CN111911655A CN 111911655 A CN111911655 A CN 111911655A CN 202010830052 A CN202010830052 A CN 202010830052A CN 111911655 A CN111911655 A CN 111911655A
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- CN
- China
- Prior art keywords
- valve
- stop
- output shaft
- planetary gear
- component
- 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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
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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
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
- F16H1/32—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
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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
- F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
- F16K27/067—Construction of housing; Use of materials therefor of taps or cocks with spherical plugs
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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
- F16K31/041—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor for rotating valves
- F16K31/043—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor for rotating valves 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
- F16K31/53—Mechanical actuating means with toothed gearing
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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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electrically Driven Valve-Operating Means (AREA)
Abstract
The invention discloses a stop type electric valve, and belongs to the technical field of refrigeration electric valves. The invention aims at the problems of complex structure and poor connection position precision existing in the conventional electric valve driven by a speed reduction type stepping motor. The valve shell is integrally cast, so that the welding seams are few, the airtightness of a product is guaranteed, the assembly process is simple, and the product quality is easy to guarantee. The valve shell is formed by casting, has strong pressure resistance and is more stable in size under high pressure. The valve shell is provided with the bulge matched with the stop component, so that the mounting strength of the stop component can be provided, the rotation angle of the final-stage planetary gear carrier is limited, the stop strength is high, and the stop reliability of the planetary gear system is greatly improved.
Description
Technical Field
The invention belongs to the technical field of refrigeration electric valves, and particularly relates to a stop type electric valve.
Background
The R32 refrigerant multi-split air conditioner realizes the organic combination of the advantages of the two, and perfectly conforms to the two development trends of environmental protection and energy conservation in the air conditioning industry. However, the refrigerant R32 has poor combustibility, and the refrigerant multilink further amplifies the disadvantage of poor combustibility of the refrigerant R32. For example, when a certain room leaks, the total amount of refrigerant of the multi-split air conditioner is far greater than the amount of refrigerant of the single air conditioner, and once the leakage occurs, the effect of the multi-split air conditioner is far greater than that of the single air conditioner. Therefore, the multi-split air conditioner needs to perform a function of cutting off refrigerant leakage immediately after refrigerant leakage is detected. In the multi-split air conditioner, in order to reduce the power load of the main control panel and reduce the requirements of the main control panel on heat generation, energy conservation and the like, the cut-off valve is required to have the characteristic of low power, and the electric ball valve adopting the speed reduction stepping motor is undoubtedly the most ideal product.
Patent publication No. CN 110725997 a discloses a stop type electric valve. The electric valve comprises a control component, a shell component, a gear reduction mechanism and a valve body component, wherein the control component comprises a cover body and a rotor component, the gear reduction mechanism comprises a gear ring and an output gear frame, a concave part is arranged at the lower end of the gear ring, the output gear frame comprises a protruding part, the valve body component comprises a valve rod and a valve rod sleeve part, the valve rod sleeve part comprises a cylindrical part and an extending part, the extending part comprises an inner end part and an outer end part, the protruding part can be abutted against the inner end part to limit the circumferential rotation stroke of the output gear frame, the outer end part is arranged in the concave part to limit the circumferential rotation of the. According to the invention, through the arrangement of the valve rod sleeve, the circumferential rotation of the gear ring is limited on one hand, and the circumferential rotation stroke of the output gear carrier is limited on the other hand. Although the electric valve is driven by the deceleration type stepping motor, the electric valve has the characteristics of large flow capacity, high sealing performance, low power consumption and the like, and meets the relevant requirements of the cut-off valve. However, the structure is complex, the precision of the connecting position of the shell component and the valve body component is poor, the position precision of the fixed gear ring is also poor, the position precision of the output shaft and the gear system is difficult to guarantee, and the product is blocked in serious cases.
Disclosure of Invention
Aiming at the problems of complex structure and poor connection position precision existing in the conventional electric valve driven by a speed-reducing stepping motor, the invention aims to provide the electric valve which is relatively simple in structure and assembly procedure and good in precision stability.
Therefore, the invention adopts the following technical scheme: the utility model provides a locking formula motorised valve, includes case, valve casing, rotor part and planetary gear system transmission are connected, the case install in the valve casing in, planetary gear system with the case transmission connect, the rotatory switching that realizes the valve port of case through the rotor part drive case closes, import takeover and export takeover are connected respectively to the both sides of case through-hole, characterized by, the top of valve casing forms and is used for the installation planetary gear system's circular mounting groove, circular mounting groove in integrative being formed with many to the arch of relative setting, planetary gear system on be provided with through protruding spacing locking part.
In addition to the above technical solutions, the present invention also includes the following technical features.
The planetary gear system comprises a gear ring and an output gear carrier, the gear ring is fixedly arranged in the circular mounting groove, a tooth part is arranged on the inner side surface of the gear ring, the output gear carrier is arranged in the gear ring, a planetary gear of the output gear carrier is matched with the tooth part of the gear ring, the stopping component is arranged below the gear ring, and an extending part extending into the protrusions is arranged in the circumferential direction of the stopping component, so that the circumferential rotation of the stopping component is limited; the top of the stopping component is provided with at least two fan-shaped bulges protruding upwards, the bottom of the output gear rack extends downwards to form limiting bulges positioned between the fan-shaped bulges, the limiting bulges can rotate between the fan-shaped bulges, and when the limiting bulges on the gear rack touch the fan-shaped bulges, the output gear rack stops rotating.
The extension part is welded and fixed with the groove bottom of the circular mounting groove.
The fan-shaped bulges limit the rotation range of the output gear rack to be 90 degrees.
The planetary gear system is connected with the valve core by an output shaft penetrating through a center hole of the stop component, the output shaft and the output gear frame are integrally formed, a special-shaped hole used for connecting the output shaft is formed in the valve core, and the bottom of the output shaft is a special-shaped part matched with the special-shaped hole. The output shaft and the output gear carrier are integrally formed, so that the play between the output shaft and the output gear carrier can be reduced, the output precision of the planetary gear system is improved, the quality of products is improved, the impact between the output shaft and the output gear carrier in transmission can be eliminated, and the running noise of the products is further eliminated. The special-shaped structure of the special-shaped part on the output shaft is matched with the special-shaped hole on the valve core, so that the direction association is also formed between the valve core through hole and the valve core special-shaped hole, and the direction association is also formed between the special-shaped structure on the output shaft and the valve core through hole. In order to ensure the consistency of the pulse (called valve opening pulse for short) required by the valve core from full closing to flow, the direction correlation consistency of the special-shaped structure of the output shaft and the limiting bulge of the output gear carrier needs to be improved. And the output shaft and the output gear carrier are integrally formed, so that the direction correlation consistency of the special-shaped structure of the output shaft and the limiting bulge on the output gear carrier is easier to ensure, and the consistency of the valve opening pulse of the product is easier to ensure.
The valve casing constitute by two its central line looks vertically cylinder parts, vertical cylinder part passes through the neck and sets up in the intermediate position of horizontal cylinder part outside portion for wear the dress the through-hole of output shaft set up in the neck, this through-hole with valve casing integrated casting shaping to make follow-up machining precision guarantee more easily, horizontal cylinder part forms the case that installs the case and holds the chamber, the top of vertical cylinder part forms circular mounting groove.
The through hole for penetrating the output shaft is penetrated and installed with the output shaft and the stopping component from inside to outside, the periphery of the lower side of the output shaft is provided with a positioning seat, and the top of the positioning seat is matched and abutted against the stopping component, so that the movable axial limiting of the output shaft is realized. The output shaft and the stop component are coaxially mounted, so that the position precision between the output shaft and the stop component is ensured, the position precision between the planetary gear system and the output shaft is improved, and the rotation reliability of the planetary gear system is improved.
The planetary gear system is encapsulated by a valve shell, and the bottom of the valve shell is matched and fixed with the top of the circular mounting groove; the rotor part is arranged above the gear reduction mechanism and is wrapped and installed through a sleeve, and the sleeve is fixed on the valve housing.
The number of the bulges is two pairs, and the 4 bulges are uniformly distributed in the circular mounting groove.
The invention can achieve the following beneficial effects: 1. the valve shell is integrally cast, so that the welding seams are few, the airtightness of a product is guaranteed, the assembly process is simple, and the product quality is easy to guarantee. The valve shell is formed by casting, has strong pressure resistance and is more stable in size under high pressure. The valve shell is provided with the bulge matched with the stop component, so that the mounting strength of the stop component can be provided, the rotation angle of the final-stage planetary gear carrier is limited, the stop strength is high, and the stop reliability of the planetary gear system is greatly improved. 2. According to the invention, the gear ring is installed through the installation station with the circular installation groove having a certain axial length, the positioning length is longer, and the installation coaxiality of the fixed gear ring is convenient to ensure. 3. According to the invention, the limiting and positioning mechanism is arranged on the output shaft, so that even if unbalanced force exists in the gear accommodating cavity and the valve core accommodating cavity, the force cannot be transmitted to the planetary gear system. 4. The output shaft and the planet gear carrier are integrally arranged, so that the contact collision between the output shaft and the planet gear carrier is reduced, and the running noise of a product is reduced. Meanwhile, the two are integrally arranged, so that the torque transmission capability of the motor is improved, and the reliability of the product is improved. The output shaft and the gear carrier are integrally formed, so that the direction correlation consistency of the special-shaped structure of the output shaft and the limiting protrusion is easier to guarantee, and the consistency of valve opening pulse of a product is easier to guarantee.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the stop member of the present invention.
Fig. 3 is a schematic structural view of a stop engagement portion of the output gear carrier of the present invention.
FIG. 4 is a schematic view of the structure of the output gear rack of the present invention matching with the fan-shaped protrusion of the stop member.
Fig. 5 is a schematic view of the valve housing of the present invention.
Fig. 6 is a schematic view showing the internal structure of the valve housing of the present invention.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings.
As shown in fig. 1 to 6, the present invention includes a valve element 1, a valve housing 4, a rotor component 9 and a planetary gear system, the rotor component 9 is in transmission connection with the planetary gear system, the valve element 1 is installed in the valve housing 4, the planetary gear system is in transmission connection with the valve element 1, the valve port of the valve element 1 is opened and closed by the rotation of the valve element 1 driven by the rotor component 9, two sides of the valve element through hole are respectively connected with an inlet connection pipe 2 and an outlet connection pipe 3, a circular installation groove 41 for installing the planetary gear system is formed at the top of the valve housing 4, 2 pairs of four protrusions 42 which are arranged oppositely are integrally formed in the circular installation groove 41, and a stop component 5 which. The planetary gear system comprises a gear ring 6 and an output gear carrier 7, the gear ring 6 is fixedly welded in a circular mounting groove 41, a tooth part is arranged on the inner side surface of the gear ring 6, the output gear carrier 7 is arranged in the gear ring 6, a planetary gear of the output gear carrier 7 is matched with the tooth part of the gear ring 6, a stopping component 5 is arranged below the gear ring 6, an extending part extending into the space between the bulges 42 is arranged in the circumferential direction of the stopping component 5, and the extending part is fixedly welded with the groove bottom of the circular mounting groove, so that the circumferential rotation of the stopping component is limited; the top of the stopping component 5 is provided with at least two fan-shaped bulges 51 protruding upwards, the bottom of the output gear rack 7 extends downwards to form a limiting bulge 71 between the fan-shaped bulges, the limiting bulge can rotate between the fan-shaped bulges, and when the limiting bulge on the gear rack touches the fan-shaped bulges, the output gear rack stops rotating. The extending part is welded and fixed with the groove bottom of the circular mounting groove 41. The fan-shaped protrusions 51 limit the range of rotation of the output carrier to 90 °.
Preferably, the planetary gear system is connected with the valve core 1 by the output shaft 11 passing through the central hole of the stop component 5, the output shaft 11 and the output gear carrier 7 are integrally formed, the valve core 1 is provided with a special-shaped hole for connecting the output shaft 11, and the bottom of the output shaft 11 is a special-shaped part 112 matched with the special-shaped hole. The output shaft and the output gear carrier are integrally formed, so that the play between the output shaft and the output gear carrier can be reduced, the output precision of the planetary gear system is improved, the quality of products is improved, the impact between the output shaft and the output gear carrier in transmission can be eliminated, and the running noise of the products is further eliminated. The special-shaped structure of the special-shaped part on the output shaft is matched with the special-shaped hole on the valve core, so that the direction association is also formed between the valve core through hole and the valve core special-shaped hole, and the direction association is also formed between the special-shaped structure on the output shaft and the valve core through hole. In order to ensure the consistency of the pulse, namely the valve opening pulse, required by the valve core from full closing to flow, the direction correlation consistency of the special-shaped structure of the output shaft and the limiting bulge of the output gear carrier needs to be improved. And the output shaft and the output gear carrier are integrally formed, so that the direction correlation consistency of the special-shaped structure of the output shaft and the limiting bulge on the output gear carrier is easier to ensure, and the consistency of the valve opening pulse of the product is easier to ensure.
Further, the valve housing 4 is composed of two cylindrical components whose central lines are perpendicular to each other, the vertical cylindrical component is arranged at the middle position of the outer side portion of the horizontal cylindrical component through the neck portion 44, a through hole for penetrating the output shaft 11 is arranged at the neck portion, and the through hole and the valve housing are integrally cast and formed, so that the subsequent processing precision is relatively easily ensured, the horizontal cylindrical component forms a valve core accommodating cavity 43 for installing the valve core, and the top of the vertical cylindrical component forms a circular mounting groove 41.
Further, the output shaft 11 and the stopping component 5 are installed in the through hole used for penetrating the output shaft 11 from inside to outside, a positioning seat 111 is arranged on the periphery of the lower side of the output shaft 11, and the top of the positioning seat 111 is matched and abutted against the stopping component 5, so that the movable axial limiting of the output shaft is realized. The output shaft and the stop component are coaxially mounted, so that the position precision between the output shaft and the stop component is ensured, the position precision between the planetary gear system and the output shaft is improved, and the rotation reliability of the planetary gear system is improved.
Further, the planetary gear system is encapsulated by a valve housing 8, and the bottom of the valve housing 8 is fixed with the top of the circular mounting groove 41 in a matching manner; the rotor part 9 is arranged above the gear reduction mechanism, the rotor part 9 is wrapped and installed through a sleeve 10, and the sleeve 10 is fixed on the valve housing 8.
Claims (9)
1. The utility model provides a stop mode motorised valve, includes case (1), valve casing (4), rotor part (9) and planetary gear system transmission are connected, case (1) install in valve casing (4) in, planetary gear system with case (1) transmission be connected, the rotatory switching that realizes the valve port of case (1) closes through rotor part (9) drive case (1), import takeover (2) and export takeover (3) are connected respectively to the both sides of case through-hole, its characterized in that:
the top of the valve casing (4) forms a circular mounting groove (41) for mounting the planetary gear system, a plurality of pairs of oppositely arranged bulges (42) are integrally formed in the circular mounting groove (41), and a stop component (5) limited by the bulges is arranged on the planetary gear system.
2. A stop electric valve as claimed in claim 1, wherein: the planetary gear system comprises a gear ring (6) and an output gear carrier (7), the gear ring (6) is fixedly arranged in the circular mounting groove (41), the inner side surface of the gear ring (6) is provided with a tooth part, the output gear carrier (7) is arranged in the gear ring (6), a planetary gear of the output gear carrier (7) is matched with the tooth part of the gear ring (6), the stop component (5) is arranged below the gear ring (6), and the circumferential direction of the stop component (5) is provided with an extending part extending into the protrusions (42); the top of the stop component (5) is provided with at least two fan-shaped bulges (51) protruding upwards, and the bottom of the output gear carrier (7) extends downwards to form a limiting bulge (71) positioned between the fan-shaped bulges.
3. A stop electric valve as claimed in claim 2, wherein: the extension part is welded and fixed with the groove bottom of the circular mounting groove (41).
4. A stop electric valve as claimed in claim 3, wherein: the fan-shaped protrusions (51) limit the rotation range of the output gear carrier to 90 degrees.
5. A stop electric valve as claimed in claim 4, wherein: the planetary gear system is connected with the valve core (1) through the output shaft (11) penetrating through the center hole of the stop component (5), the output shaft (11) and the output gear carrier (7) are integrally formed, a special-shaped hole used for connecting the output shaft (11) is formed in the valve core (1), and a special-shaped part (112) matched with the special-shaped hole is formed in the bottom of the output shaft (11).
6. A stop electric valve as claimed in claim 5, wherein: valve casing (4) constitute by two its central line looks vertically cylinder parts, vertical cylinder part passes through neck (44) and sets up in the intermediate position of horizontal cylinder part outside portion for wear the dress output shaft (11) the through-hole set up in the neck, this through-hole with valve casing integrated casting shaping, horizontal cylinder part forms the case of installation case and holds chamber (43), the top of vertical cylinder part forms circular mounting groove (41).
7. A stop electric valve as claimed in claim 6, wherein: the through hole for penetrating the output shaft (11) is penetrated and installed with the output shaft (11) and the stopping component (5) from inside to outside, the periphery of the lower side of the output shaft (11) is provided with a positioning seat (111), and the top of the positioning seat (111) is matched and abutted with the stopping component (5).
8. A stop electric valve as claimed in claim 7, wherein: the planetary gear system is encapsulated by a valve shell (8), and the bottom of the valve shell (8) is matched and fixed with the top of the circular mounting groove (41); the rotor component (9) is arranged above the gear speed reducing mechanism, the rotor component (9) is packaged and installed through a sleeve (10), and the sleeve (10) is fixed on the valve shell (8).
9. A stop electric valve as defined in claim 8 wherein: the number of the bulges (42) is two, and the circumferences of the 4 bulges are uniformly distributed in the circular mounting groove (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010830052.7A CN111911655A (en) | 2020-08-18 | 2020-08-18 | Stop type electric valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010830052.7A CN111911655A (en) | 2020-08-18 | 2020-08-18 | Stop type electric valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111911655A true CN111911655A (en) | 2020-11-10 |
Family
ID=73279329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010830052.7A Pending CN111911655A (en) | 2020-08-18 | 2020-08-18 | Stop type electric valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111911655A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117685386A (en) * | 2024-02-04 | 2024-03-12 | 江苏兴逸阀门有限公司 | Valve system capable of being remotely controlled |
-
2020
- 2020-08-18 CN CN202010830052.7A patent/CN111911655A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117685386A (en) * | 2024-02-04 | 2024-03-12 | 江苏兴逸阀门有限公司 | Valve system capable of being remotely controlled |
| CN117685386B (en) * | 2024-02-04 | 2024-04-26 | 江苏兴逸阀门有限公司 | Valve system capable of being remotely controlled |
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