WO2020015497A1 - 一种电动球阀及其制造方法 - Google Patents
一种电动球阀及其制造方法 Download PDFInfo
- Publication number
- WO2020015497A1 WO2020015497A1 PCT/CN2019/092297 CN2019092297W WO2020015497A1 WO 2020015497 A1 WO2020015497 A1 WO 2020015497A1 CN 2019092297 W CN2019092297 W CN 2019092297W WO 2020015497 A1 WO2020015497 A1 WO 2020015497A1
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- WIPO (PCT)
- Prior art keywords
- valve
- valve body
- electric ball
- ball valve
- welded
- Prior art date
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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
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/002—Processes combined with methods covered by groups B21D1/00 - B21D31/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
- B21K1/20—Making machine elements valve parts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/001—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass valves or valve housings
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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
- F16K27/10—Welded housings
- F16K27/107—Welded housings for taps or cocks
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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
- F16K31/02—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
- F16K31/048—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 with torque limiters
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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
- F16K31/535—Mechanical actuating means with toothed gearing for rotating 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
- 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
- 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
- F16K5/0647—Spindles or actuating means
Definitions
- the invention relates to the technical field of fluid control, in particular to an electric ball valve and a manufacturing method thereof.
- FIG. 17 is a schematic sectional view of an electric valve according to the background art.
- the electric valve includes a motor 01 and a valve body 02, a valve core 04 is disposed in an inner cavity of the valve body 02, an upper end of the valve stem 03 is rotatably connected to the motor 01, and a lower end of the valve stem 03 is rotatably connected to the valve core 04.
- a part of the valve stem 03 is exposed to the outside, and the fluid leakage is prevented mainly by the sealing ring 05 sleeved on the outer periphery of the valve stem 03.
- the durability of the sealing ring 05 is reduced, which affects Sealing effect, which may cause fluid to leak out.
- the fluid is a compound such as a refrigerant, leakage of the fluid may cause environmental pollution.
- An object of the present invention is to provide an electric ball valve, which includes a control member, a gear reduction mechanism, a valve body member, and a housing member.
- the control member includes a cover body and a rotor member provided in the cover body.
- the gear reduction mechanism The gear reduction mechanism is provided in an inner cavity of the housing part, and the gear reduction mechanism includes an input gear part and an output gear carrier. A rotating shaft of the rotor part can drive the input gear part to rotate in a circumferential direction.
- the valve body part includes a valve body.
- a valve stem, a first valve seat, and a valve core the first valve seat is fixedly connected to the valve body, the valve core is disposed in an inner cavity of the valve body component, and one end of the valve stem extends into the valve body
- the center hole of the output gear carrier, the output gear carrier can drive the valve stem to rotate in the circumferential direction, the other end of the valve stem projects into the groove of the valve core, and the valve stem can drive the valve core.
- the housing part includes an upper housing part and a lower housing part; the cover body, the upper housing part, and the lower housing part are made of stainless steel;
- the upper case portion is fixed by welding, and the upper case portion and the lower portion
- the casing portion is welded and fixed, and the lower casing portion is welded and fixed to the valve body.
- the invention also provides a method for manufacturing an electric ball valve, including:
- Step A10 preparing the valve body, the first valve seat and the first nozzle, stretching and turning a stainless steel material to prepare the cover body, the upper housing portion, and the lower housing portion;
- Step A20 welding and fixing the lower housing part to the valve body, welding and fixing the first valve seat to the first connecting pipe, screwing the valve body to the first valve seat, or Welding
- Step A30 welding and fixing the cover body to the upper housing part
- Step A40 The upper case portion and the lower case portion are welded and fixed.
- the cover body, the upper housing part and the lower housing part are made of stainless steel, the cover body and the upper housing part are welded and fixed, and the upper housing part and the lower housing part are fixed. Welding is fixed, and the lower casing part is welded and fixed to the valve body. Compared with the background art, the risk of leakage of the electric valve can be reduced.
- Figure 1 A schematic sectional view of an electric ball valve provided by the present invention
- FIG. 1 Schematic diagram of the structure of the upper housing part in Figure 1;
- FIG. 3 is a schematic structural diagram of a lower casing portion in FIG. 1;
- Figure 4 Schematic diagram of the cooperation between the rotating shaft and the input gear in Figure 1;
- Figure 6 Assembly half-section view of the gear reduction mechanism, valve body member, and lower housing portion of Figure 1;
- Figure 7 Schematic diagram of the structure of the gear ring in Figure 1;
- FIG 8 Schematic diagram of the output gear carrier in Figure 1;
- FIG. 9 is a schematic structural diagram of a second bearing member in FIG. 1;
- Fig. 10 Schematic diagram of the cooperation of the gear ring, the output gear carrier and the second bearing member in Fig. 1;
- FIG 11 Schematic diagram of the valve stem in Figure 1;
- FIG. 12 is a schematic structural diagram of another output gear carrier according to the present invention.
- FIG. 15 is a schematic partial cross-sectional view of another electric ball valve provided by the present invention.
- FIG 16 Schematic diagram of the valve body in Figure 15;
- FIG. 17 is a schematic cross-sectional view of an electric ball valve according to the background art.
- 4-case member 40-inner cavity of the case member, 41-upper case portion, 42-lower case portion;
- the core of the present invention is to provide an electric ball valve and a method for manufacturing the same.
- the cover body, the upper housing part, and the lower housing part are made of stainless steel. By welding and fixing the cover body and the upper housing part, the upper housing part Compared with the prior art, the lower casing part is welded and fixed to the lower casing part and the valve body is welded and fixed, which can reduce the risk of leakage of the electric valve.
- FIG. 1 is a schematic sectional view of an electric ball valve provided by the present invention
- FIG. 2 is a schematic structural view of an upper casing portion in FIG. 1
- FIG. 3 is a schematic structural view of a lower casing portion in FIG. 1
- FIG. 5 is an assembly half-section view of the control member and the upper housing part in FIG. 1
- FIG. 6 is an assembly half-section view of the gear reduction mechanism, the valve body part, and the lower housing part in FIG. 1.
- 7 is a schematic structural diagram of a gear ring in FIG. 1
- FIG. 8 is a schematic structural diagram of an output gear frame in FIG. 1
- FIG. 9 is a schematic structural diagram of a second bearing member in FIG.
- FIG. 1 Schematic diagram of the cooperation between the output gear carrier and the second bearing member;
- Figure 11 is a schematic structural diagram of the valve stem in Figure 1;
- Figure 12 is a structural schematic diagram of another output gear carrier according to the present invention;
- Figure 13 is a schematic diagram of the present invention.
- FIG. 14 is a schematic diagram of the cooperation between the output gear carrier and the gear ring shown in FIG. 13.
- the electric ball valve includes a control member 1, a gear reduction mechanism 2, a valve body member 3, and a housing member 4.
- the valve cavity of the electric ball valve includes an inner cavity 30 of a valve body component and an inner cavity 40 of a housing component.
- the control member 1 includes a cover 11, a coil 12, and a rotor member 13.
- the cover body 11 has a bottomed cylindrical shape and is made of stainless steel material, specifically made of stainless steel sheet.
- the coil 12 is sleeved on the outer periphery of the cover body 11.
- the rotor component 13 includes a rotating shaft 14, a plastic material bracket 131 and a device.
- a magnet 132 on the outer periphery of the bracket 131 is made of magnetic powder sintering, and a rod-shaped shaft body 141 of the rotating shaft 14 is made of stainless steel bar material.
- the shaft body 141 and the magnet 132 are placed in a mold cavity, and then in the mold cavity
- the injection-molded bracket 131 fixes the shaft body 141 and the magnet 132.
- a bearing seat 18 is fixedly provided above the inside of the cover body 11.
- the bearing seat 18 is provided with a central blind hole, and the upper end of the rotating shaft 14 is inserted into the central blind hole for positioning.
- the coil 12 is energized and can drive the rotating shaft 14 to rotate in the circumferential direction.
- the gear reduction mechanism 2 is provided in the inner cavity 40 of the case member.
- the gear reduction mechanism 2 includes an input gear portion 241 and an output gear frame 26, and the rotating shaft 14 is flexibly connected to the input gear portion 241.
- the flexible connection here means that there is a certain movement between the mutually connected rotating shaft 14 and the input gear portion 241. In the gap, the rotating shaft 14 can drive the input gear portion 241 to rotate in the circumferential direction.
- the valve body member 3 includes a valve body 31, a valve stem 23, a first valve seat 33, a second valve seat 33 ', and a valve body 32.
- the valve body 31 has a substantially hollow tube shape.
- the first valve seat 33 and one end of the valve body 31 are fixed by welding, and the second valve seat 33 'and the other end of the valve body 31 are fixed by welding.
- the valve core 32 is substantially spherical and is provided in the inner cavity 30 of the valve body member, which is located between the first valve seat 33 and the second valve seat 33 '.
- the valve body 31 includes a main body portion 311 and an extension portion 312 extending outward from a periphery of the main body portion 311.
- the extension portion 312 has a substantially hollow tubular shape.
- the valve rod 23 penetrates the protruding portion 312.
- the upper end of the valve rod 23 extends into the gear reduction mechanism 2 and is connected with the central through hole 262 of the output gear frame 26.
- the output gear frame 26 can drive the valve rod 23 to rotate in the circumferential direction.
- the lower end of the main body portion 311 is connected to the key groove of the groove 321 of the valve core 32, and the valve rod 23 can drive the valve core 32 to rotate in the circumferential direction.
- the housing part 4 includes an upper housing portion 41 and a lower housing portion 42.
- the cover body 11, the upper housing portion 41, and the lower housing portion 42 are made of a stainless steel plate after being stretched and then machined.
- the body portion of the valve body 31 311 and the protruding portion 312 are made of stainless steel pipe.
- the stainless steel pipe can also be crimped and then welded to make the stainless steel pipe, and then the stainless steel welded pipe is processed into the valve body 31.
- the body portion 311 of the valve body 31 is cut and formed of stainless steel pipe
- the protruding portion 312 is made by punching and flanging based on the body portion 311
- the upper housing portion 41 and the cover body 11 are fixed by welding
- the lower housing The portion 42 includes a reduced-diameter portion 415 that is welded and fixed to the protruding portion 312 of the valve body 31.
- the cover body, the upper housing part, and the lower housing part are made of stainless steel.
- the cover body is welded and fixed to the upper housing part, the upper housing part and the lower housing part are welded and fixed, and the lower housing part It is welded and fixed to the valve body.
- the gear reduction mechanism is set in the inner cavity of the housing part.
- the valve core is set in the inner cavity of the valve body part.
- One end of the valve rod is matched with the center hole of the output gear frame of the gear reduction mechanism and the other end is connected with the valve core.
- the upper end of the upper casing portion 41 is bent inward to form a bent portion 411, and the bent portion 411 includes a tapered portion 412, an inner bent portion 413, and a connecting tapered portion 412 and the inner bent portion.
- the transition portion 416 of 413, the inner curved portion 413 extends downward from one end of the transition portion 416 in the axial direction of the electric ball valve, and the inner curved portion 413 is adhered and welded to the outer edge of the lower end of the cover 11.
- This arrangement causes the upper end of the upper case portion 41 to bulge outward, which has the beneficial effect that the strength of the upper case portion 41 is increased, and it will not be easily damaged even by a strong refrigerant impact force.
- the wall thickness of the lower case portion 42 is larger than that of the upper case portion 41.
- the upper end of the lower case portion 42 is provided with a step portion 414 with the stepped surface facing upward, and the upper case portion 41 is placed on the step portion 414 and fixed by welding.
- the step is provided, which has the beneficial effect that it is easy to position when the two are welded and the welding quality is guaranteed.
- the rotating shaft 14 includes a rod-shaped shaft body 141 and a transmission plate 15 fixedly disposed at a lower end portion of the shaft body 141.
- the transmission plate 15 includes a base portion 151 and a plate body extending radially outward from the base portion 151.
- the portion 152, the base portion 151 and the shaft 141 are fixed by being engaged or welded, and the plate portion 152 includes a side wall portion 1521.
- the upper end of the input gear portion 241 is provided with a groove 242 and the lower end is provided with an input gear 243.
- the input gear 243 meshes with the planetary gear 244 of the gear reduction mechanism 2.
- the plate body portion 152 at least partially projects into the groove 242.
- the groove 242 includes a groove wall portion 2421 capable of abutting against the side wall portion 1521.
- the groove wall portion 2421 and the side wall portion 1521 have a preset circumferential movement. space.
- the rotation shaft 14 rotates, and the side wall portion 1521 of the plate body portion 152 abuts with the groove wall portion 2421 of the groove 242, thereby driving the input gear portion 241 to rotate in the circumferential direction.
- the gear reduction mechanism 2 is a planetary gear mechanism 24, the input gear portion 241 includes a large-diameter portion 245 and a small-diameter portion 246, and the groove 242 is provided in the large-diameter portion.
- the input gear 243 is provided at the lower end of the small-diameter portion 246.
- the outer edge of the small-diameter portion 246 is sleeved with a first bearing member 247, and the first bearing member 247 is provided with a flange portion 2471.
- the first bearing member 247 is made of a wear-resistant material, and the upper end surface of the first bearing member 247 has a large contact.
- the control component 1 further includes a support frame 16, a spring 17, and a third bearing member 19.
- the third bearing member 19 is made of wear-resistant material and powder metallurgy.
- the third bearing member 19 is sleeved on the shaft body 141 and placed on the support frame 16.
- the support frame 16 has a substantially inverted cup shape, and the support frame 16 is placed on the flange portion 2471 or the cover plate 248.
- the spring 17 is sleeved with a shaft body 141, one end of which is in contact with the third bearing member 19, and the other end of which is in contact with the bracket 131 of the rotor component 13.
- the third bearing member 19 may be eliminated, and one end of the spring 17 directly abuts the support frame 16.
- the rotor member 13 is supported in the cover 11 by the elastic force of the spring 17. Since the contact area of the spring 17 with the third bearing member 19 and the bracket 131 is small, and the third bearing member 19 is made of a wear-resistant material, this arrangement can reduce the wear of the spring 17, increase its service life, and also help reduce the coil 12 energy consumption.
- the inner wall of the protruding portion 312 of the valve body 31 is welded and fixed to the outer wall of the reduced diameter portion 415 of the lower housing portion 42, and a second bearing member 27 is provided between the reduced diameter portion 415 and the valve stem 23;
- the outer wall of the protruding portion 312A and the inner wall of the reduced diameter portion 415 may be welded and fixed, and a second bearing member 27 is provided between the protruding portion 312A and the valve stem 23.
- the second bearing member 27 is made of a wear-resistant material powder metallurgy. The beneficial effect of this arrangement is that the wear of the valve stem 23 during the circumferential rotation is reduced, and its service life is improved.
- valve stem 23 can rotate circumferentially relative to the second bearing member 27, there is a rotation gap 310 between the second bearing member 27 and the valve stem 23, and the housing member
- the inner cavity 40 of the valve body and the inner cavity 30 of the valve body component communicate through a rotation gap 310.
- the end of the valve rod 23 facing the control component 1 includes a first keying portion 231 that is keyedly connected to the central through hole 262 of the output gear carrier 26.
- the first bonding portion 231 is located in the inner cavity 40 of the housing component.
- the cross-section of the first bonding portion 231 is non-circular and cooperates with the 26 keyway of the output gear carrier.
- the other end of the valve rod 23 includes a valve core 32.
- a second keying portion 232 connected by the key groove, the second keying portion 232 is located in the inner cavity 30 of the valve body member, an arc end portion 233 is provided at the lower end of the second keying portion 232, and a groove bottom of the groove 321 of the valve core 32
- the arc-shaped end portion 233 projects into the groove 321, and the second bonding portion 232 is matched with the key groove of the valve core 32.
- the inner cavity 40 of the housing component and the inner cavity 30 of the valve body component are communicated only through the rotation gap 310, which has the beneficial effect that the risk of leakage of the electric valve can be reduced.
- an axial through groove may be provided on the outer periphery of the second bearing member 27, The fluid is more introduced into the inner cavity 40 of the housing component, which can enhance the internal circulation of the electric valve valve cavity, dissipate the gear reduction device, and increase its service life.
- the planetary gear mechanism 24 further includes a gear ring 25, and a lower end of the gear ring 25 is provided with a limiting groove 251.
- the output gear carrier 26 includes a disc-shaped body portion 261, and a central through hole 262 is provided in the disc-shaped body portion 261. The cross-section of the central through-hole 262 is non-circular.
- the disc-shaped body portion 261 is provided on the side of the valve core 32.
- the second bearing member 27 includes a cylindrical portion 271 and an extension portion 272 extending radially outward from an outer edge of the cylindrical portion 271. An outer end edge of the extension portion 272 and an inner wall of the lower housing portion 42.
- One end of the extending portion 272 far from the cylindrical portion 271 is engaged with the key groove of the limiting groove 251, and the other end of the extending portion 272 is engaged with the protruding portion 263 to limit the circumferential rotation stroke of the output gear carrier 26.
- the extension portion of the second bearing member since the extension portion of the second bearing member is fixed to the lower housing portion by welding, on the one hand, the extension portion cooperates with the limit groove key groove of the gear ring, so that the gear ring is circumferentially restricted, and on the other hand, The extension is used to limit the protrusion, thereby limiting the circumferential rotation stroke of the output gear frame, that is, the circumferential rotation stroke of the valve stem.
- This setting can limit the fully open position and the fully closed position of the valve core, and realize electric operation. Ball valve full open, full close and flow adjustment function.
- the above-mentioned protrusions 263 are provided in two, and are symmetrically disposed with respect to the central axis of the central through hole 262. This arrangement is beneficial to the smooth rotation of the output gear carrier in the circumferential direction and reliable position limitation.
- the protruding portion 263 and the disc-shaped body portion 261 are integrally injection-molded by plastic or integrally formed by metal powder metallurgy, which is conducive to enhancing the strength of the output gear carrier and making the limit position more reliable.
- FIG. 12 is another stop structure of the electric ball valve.
- the lower end of the gear ring 25 (excluding the limiting groove 251) is fixed to the lower housing portion 42 by welding, and the periphery of the disc-shaped body portion 261 is provided with a protrusion.
- the portion 263 ′, the limiting groove 251 and the protruding portion 263 ′ cooperate to limit the circumferential rotation stroke of the output gear carrier 26.
- the circumferential rotation stroke of the output gear frame is restricted by the limiting groove of the gear ring, and the fully open and fully closed positions of the valve core can also be restricted, and the fully open, fully closed and flow adjustment functions of the electric ball valve can be realized.
- there is no need to specially process the second bearing member the number of processing steps is small, and the assembly is simple.
- a protrusion 264 is provided on a side of the disc-shaped body portion 261 facing the ball valve 32, and the protrusion 264 is integrated with the protrusion 263 ', and the protrusion 263', the protrusion 264 and the disc-shaped body portion are integrally formed.
- 261 is integrated with plastic injection molding or metal powder metallurgy, which is conducive to enhancing the strength of the output gear carrier and making the limit more reliable.
- Step A10 a method for manufacturing a typical structured electric ball valve is described below.
- a control component 1 including a cover body 11, a coil 12, a rotor component 13, a support frame 16, a spring 17, a bearing housing 18, wherein the rotating shaft 14 includes a shaft body 141 and a transmission plate 15, and the rotor component 13 includes a bracket 131 and a magnet.
- 132 and the shaft body 141 are integrally fixed by injection molding;
- a gear reduction mechanism 2 is prepared, which includes a planetary gear mechanism 24, a first bearing member 247, and a second bearing member 27.
- the planetary gear mechanism 24, the first bearing member 247, and the second bearing member 27 are made of iron-based powder metallurgy. to make;
- valve body part 3 including: valve body 31, valve stem 23, valve core 32, first valve seat 33, second valve seat 33 ', gasket 34, O-ring 35, first connection 36, and second connection 37, wherein the valve body 31 is made of stainless steel pipe processing, and the stainless steel plate can also be crimped and welded to make a stainless steel pipe material, and then the welded pipe material is processed into the valve body 31, wherein the protruding portion of the valve body 31 312 is made of stainless steel pipe by punching and flanging, valve stem 23 is made of stainless steel bar material by milling and milling, and the first valve seat 33 and the second valve seat 33 'are made of stainless steel turning;
- a housing part 4 including an upper housing part 41 and a lower housing part 42, and the upper housing part 41 and the lower housing part 42 are first made by drawing and turning a stainless steel plate;
- one end of the stainless steel plate may be stretched and bent inward to form the upper casing portion 41, and the upper end thereof is bent to form a tapered portion 412, a transition portion 416, and an inner curved portion 413.
- a step is formed on the outer edge of the upper end of the lower case portion 42 by a metal cutting method to form a step portion 414 for placing the upper case portion 41.
- the lower casing portion 42, the valve body 31, the first valve seat 33, and the first nozzle 36 are brazed into a furnace. Insert one side O-ring 35, one side gasket 34, valve core 32, the other side gasket 34, the other side O-ring 35, and the second valve seat 33 'into the valve body 31 in order; 23 extends from the reduced diameter portion 415 of the lower housing portion 42 and inserts the second bonding portion 232 at the lower end of the valve stem 23 into the groove 321 of the valve core 32, so that the valve stem 23 can drive the valve core 32 to rotate in the circumferential direction; After that, the valve body 31, the second valve seat 33 ', and the second connecting pipe 37 are fixed and integrated by argon arc welding or laser welding. It is fixed by welding multiple parts at once, the process is simple, and the product is highly reliable.
- the cylindrical portion 271 of the second bearing member 27 is sleeved over the valve stem 23, and then the outer edge of the extension portion 272 of the second bearing member 27 and the inner wall of the lower housing portion 42 are integrally fixed by laser welding;
- the gear reduction mechanism 2 is installed in the lower housing portion 42, and the first bonding portion 231 at the upper end of the valve rod 23 is inserted into the central through hole 262 of the output gear frame 26, so that the output gear frame 26 can drive the valve rod 23 to rotate in the circumferential direction.
- the first component is thus formed.
- the cover 11 and the upper case portion 41 are brazed and fixed in a furnace.
- the housing 11 is inserted into the bearing housing 18, the rotor component 13, the spring 17, and the support frame 16. After the installation, the transmission plate 15 and the lower end of the shaft 141 are laser-welded to form a second component.
- Assemble the first component and the second component specifically, insert the transmission plate 15 of the rotating shaft 14 into the groove 242 of the input gear portion 241 of the gear reduction mechanism 2; place the upper case portion 41 in the lower case portion 42
- the stepped portion 414 is further integrated with the upper case portion 41 and the lower case portion 42 by laser welding, and then the coil 12 is sleeved on the cover 11 to form an electric valve.
- steps A20 and A30 can be interchanged with steps A40 and A50 without affecting the technical effects of the present invention.
- the manufacturing method of the electric ball valve of this embodiment is fixed by welding multiple parts at one time, the process is simple, the product is reliable, and the risk of leakage of the electric valve can be reduced; by brazing in the furnace, argon arc welding, and laser welding Fixed connection, clean and environmentally friendly production process.
- FIG. 15 is a schematic partial cross-sectional view of another electric ball valve provided by the present invention
- FIG. 16 is a schematic structural diagram of a valve body in FIG. 15. This embodiment is different from the above-mentioned embodiment in the structure of the valve body member and the manufacturing method thereof.
- the valve body component 3A includes a valve body 31A, a valve stem 23, a first valve seat 33A, and a valve core 32.
- the valve body 31A is made of a metal material forged or cast.
- a valve seat 33A is made by turning, forging or casting a metal material, and the valve body 31A and the first valve seat 33A are fixedly connected to form an inner cavity 30 of a valve body component.
- the valve body 31A includes a substantially cylindrical body portion 311A and an extension portion 312A protruding from the outer edge of the body portion 311A toward the control member 1.
- the extension portion 312A is provided with an axial through-hole 3120A, and the valve rod 23 passes through. This through hole 3120A.
- Step A10 preparing the valve body part 3A, the valve body 31A is made of forged or cast metal material, and the first valve seat 33A is machined from metal material , Forged or cast.
- Step A20 The lower casing portion 42, the valve body 31A, and the second connecting pipe 37 are fixedly connected by brazing in a furnace, wherein the reduced diameter portion 415 of the lower casing portion 42 and the protruding portion 312A of the valve body 31A are welded and fixed. ;
- the first valve seat 33A and the first connecting pipe 36 are fixed by brazing in the furnace, and then the valve body 31A and the first valve seat 33A are fixed by screwing, or the valve body 31A is welded by argon arc welding or brazing. It is fixedly connected with the first valve seat 33A, or the valve body 31A and the first valve seat 33A are screwed and then fixed by welding.
- Step A30 the second bearing member 27 is sleeved on the valve stem 23, and then the outer edge of the second bearing member 27 and the inner wall of the protruding portion 312A are fixed and integrated by argon arc welding or brazing.
Abstract
Description
Claims (21)
- 一种电动球阀,包括控制部件、齿轮减速机构、阀体部件、壳体部件,所述控制部件包括罩体、设于所述罩体内的转子部件;所述齿轮减速机构设于所述壳体部件的内腔,所述齿轮减速机构包括输入齿轮部、输出齿轮架,所述转子部件的转轴能够带动所述输入齿轮部周向转动;所述阀体部件包括阀体、阀杆、第一阀座、阀芯,所述第一阀座与所述阀体固定连接,所述阀芯设于所述阀体部件的内腔,所述阀杆的一端伸入所述输出齿轮架的中心孔,所述输出齿轮架能够带动所述阀杆周向转动,所述阀杆的另一端伸入所述阀芯的槽,所述阀杆能够带动所述阀芯周向转动;所述壳体部件包括上壳体部和下壳体部,所述罩体、所述上壳体部、所述下壳体部由不锈钢材料加工制成,所述罩体与所述上壳体部焊接固定,所述上壳体部和所述下壳体部焊接固定,所述下壳体部与所述阀体焊接固定。
- 如权利要求1所述的电动球阀,其特征在于,所述阀体大致呈管状,所述阀体由不锈钢材料拉伸制成,所述阀体包括本体部和从所述本体部的周向外缘伸出的伸出部,所述伸出部大致呈管状,所述阀杆贯穿所述伸出部。
- 如权利要求1所述的电动球阀,其特征在于,所述阀体由金属材料锻造或铸造制成,所述阀体包括本体部和朝向所述控制部件伸出的伸出部,所述伸出部包括贯通孔,所述阀杆贯穿所述贯通孔。
- 如权利要求1所述的电动球阀,其特征在于,所述上壳体部的上端包括向内的折弯部,所述折弯部包括锥状部、过渡部和内弯部,所述过渡部连接所述锥状部和所述内弯部,所述内弯部从所述过渡部的一端沿所述电动球阀的轴向向下延伸,所述内弯部与所述罩体焊接固定。
- 如权利要求1所述的电动球阀,其特征在于,所述下壳体部的壁厚大于所述上壳体部的壁厚,所述下壳体部的上端设有台阶面朝上的台阶部, 所述上壳体部置于所述台阶部,所述上壳体部与所述台阶部焊接固定。
- 如权利要求1所述的电动球阀,其特征在于,所述转轴包括轴体、与所述轴体的下端固定连接的传动板,所述传动板包括与所述轴体下端固定连接的基体部和从所述基体部向外延伸的板体部,所述板体部包括侧壁部,所述输入齿轮部的上端设有凹槽,下端设有输入齿轮,所述板体部至少部分伸入所述凹槽内,所述凹槽包括能够与所述侧壁部抵接的槽壁部,所述槽壁部与所述侧壁部之间具有周向移动间隙。
- 如权利要求6所述的电动球阀,其特征在于,所述齿轮减速机构为行星齿轮机构,所述输入齿轮部包括大径部和小径部,所述凹槽设于所述大径部的上端,所述输入齿轮设于所述小径部的下端,所述小径部的外周套设有第一轴承件,所述第一轴承件包括凸缘部,所述第一轴承件的上端面接触所述大径部的下端面,所述凸缘部的下端面接触所述行星齿轮机构的盖板,所述第一轴承件的下端穿过所述盖板的通孔。
- 如权利要求1所述的电动球阀,其特征在于,所述转轴包括轴体、与所述轴体的下端固定连接的传动板,所述输入齿轮部包括大径部和小径部,所述小径部的外周套设有第一轴承件,所述第一轴承件包括凸缘部,所述第一轴承件的上端面接触所述大径部的下端面,所述凸缘部的下端面接触所述减速齿轮机构的盖板,所述控制部件还包括支撑架、弹簧,所述支撑架大致呈倒置的杯状,所述支撑架置于所述凸缘部或所述盖板,所述弹簧套设所述轴体,所述弹簧一端直接或间接抵接所述支撑架,另一端抵接所述转子部件的支架。
- 如权利要求2或3所述的电动球阀,其特征在于,所述下壳体部包括缩径部,所述缩径部与所述伸出部焊接固定,所述伸出部的内壁与所述缩径部的外壁焊接固定,所述缩径部与所述阀杆之间设有第二轴承件,或,所述伸出部的外壁与所述缩径部的内壁焊接固定,所述伸出部与所述阀杆之间设有第二轴承件。
- 如权利要求9所述的电动球阀,其特征在于,所述减速齿轮机构为行星齿轮机构,所述行星齿轮机构还包括齿轮圈,所述齿轮圈的下端设有限位凹槽;所述输出齿轮架包括盘状本体部,所述中心通孔设于所述盘 状本体部,所述中心通孔的横截面为非圆形,所述盘状本体部朝向所述阀芯的一侧设有突起部,所述第二轴承件包括筒状部和从所述筒状部径向延伸的延伸部,所述延伸部与所述下壳体部焊接固定,所述延伸部的远离所述筒状部的一端与所述限位凹槽键槽连接,所述突起部能够与所述延伸部抵接以限制所述输出齿轮架的周向转动行程。
- 如权利要求10所述的电动球阀,其特征在于,所述突起部为2个,且相对所述中心通孔的中心轴对称设置,所述突起部与所述盘状本体部一体成型。
- 如权利要求1-8任一项所述的电动球阀,其特征在于,所述减速齿轮机构为行星齿轮机构,所述行星齿轮机构包括齿轮圈,所述齿轮圈的下端设有限位凹槽,所述齿轮圈的下端与所述下壳体部固定连接,所述输出齿轮架包括盘状本体部,所述中心通孔设于所述盘状本体部,所述中心通孔的横截面为非圆形,所述盘状本体部的周向外缘设有突起部,所述突起部能够与所述限位凹槽抵接以限制所述输出齿轮架的周向转动行程。
- 如权利要求12所述的电动球阀,其特征在于,所述盘状本体部朝向所述阀芯的一侧设有凸台,所述凸台与所述突起部相连,所述凸台、所述突起部与所述盘状本体部一体成型。
- 如权利要求9所述的电动球阀,其特征在于,所述第二轴承件与所述阀杆之间具有转动间隙,所述电动阀的阀腔包括所述壳体部件的内腔和所述阀体部件的内腔,所述壳体部件的内腔和所述阀体部件的内腔通过所述转动间隙连通,所述阀杆的一端包括第一键合部,所述第一键合部位于所述壳体部件的内腔,所述阀杆的另一端包括第二键合部,所述第二键合部位于所述阀体部件的内腔。
- 如权利要求1所述的电动球阀的制造方法,包括:步骤A10:制备所述阀体、所述第一阀座和第一接管,将不锈钢材料拉伸及车加工制备所述罩体、所述上壳体部、所述下壳体部;步骤A20:将所述下壳体部与所述阀体焊接固接、所述第一阀座与所述第一接管焊接固接,将所述阀体与所述第一阀座螺纹连接或焊接固接;步骤A30:将所述罩体与所述上壳体部焊接固接;步骤A40:将所述上壳体部与所述下壳体部焊接固接。
- 如权利要求15所述的电动球阀的制造方法,其特征在于,所述步骤A10还包括:所述阀体由不锈钢材料拉伸制成,所述阀体的伸出部由不锈钢材料冲压及翻边制成;制备第二阀座和第二接管,所述阀体、所述第二阀座和所述第二接管焊接固接;所述步骤A20还包括:所述下壳体部的缩径部与所述阀体的伸出部焊接固接。
- 如权利要求16所述的电动球阀的制造方法,其特征在于,所述步骤A20还包括:通过炉中钎焊将所述下壳体部、所述阀体、所述第一阀座、所述第一接管固接,通过氩弧焊或激光焊将所述阀体、所述第二阀座、所述第二接管固接;所述步骤A30还包括:通过炉中焊将所述罩体与所述上壳体部固接;所述步骤A40还包括:通过激光焊将所述上壳体部与所述下壳体部固接。
- 如权利要求15所述的电动球阀的制造方法,其特征在于,所述步骤A10还包括:所述阀体由金属材料锻造或铸造制成;制备第二接管,所述阀体和所述第二接管焊接固接;所述步骤A20还包括:所述下壳体部的缩径部与所述阀体的伸出部焊接固接。
- 如权利要求18所述的电动球阀的制造方法,其特征在于,所述步骤A20还包括:通过炉中钎焊将所述下壳体部、所述阀体、所述第二接管固接,通过炉中钎焊将所述第一阀座、所述第一接管固接;通过氩弧焊或钎焊将所述阀体、所述第二接管固接;通过螺纹螺合将所述阀体、所述第一阀座固接,或通过氩弧焊或钎焊将所述阀体、所述第一阀座固接;所述步骤A30还包括:通过炉中焊将所述罩体与所述上壳体部固接;所述步骤A40还包括:通过激光焊将所述上壳体部与所述下壳体部固接。
- 如权利要求15所述的电动球阀的制造方法,其特征在于,所述步骤A20、所述步骤A30的顺序可以互换。
- 如权利要求15-20任一项所述的电动球阀的制造方法,其特征在于,所述步骤A10还包括:将所述上壳体部的上端向内折弯形成锥状部、过渡部和内弯部;通过金属切削方法,在所述下壳体部的上端加工与所述上壳 体部配合的台阶部。
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US17/040,932 US11131397B2 (en) | 2018-07-17 | 2019-06-21 | Electric ball valve and manufacturing method therefor |
JP2020551989A JP7071529B2 (ja) | 2018-07-17 | 2019-06-21 | 電動ボール弁及びその製造方法 |
CN201980045089.4A CN112424520B (zh) | 2018-07-17 | 2019-06-21 | 一种电动球阀及其制造方法 |
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2018
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- 2019-06-21 US US17/040,932 patent/US11131397B2/en active Active
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KR102374084B1 (ko) | 2022-03-14 |
KR20200133783A (ko) | 2020-11-30 |
CN112424520B (zh) | 2022-12-20 |
CN112424520A (zh) | 2021-02-26 |
JP2021516750A (ja) | 2021-07-08 |
US20210025506A1 (en) | 2021-01-28 |
CN110725985A (zh) | 2020-01-24 |
CN110725985B (zh) | 2021-11-12 |
US11131397B2 (en) | 2021-09-28 |
JP7071529B2 (ja) | 2022-05-19 |
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