WO2024022321A1 - 轴组件和电动阀 - Google Patents

轴组件和电动阀 Download PDF

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Publication number
WO2024022321A1
WO2024022321A1 PCT/CN2023/109058 CN2023109058W WO2024022321A1 WO 2024022321 A1 WO2024022321 A1 WO 2024022321A1 CN 2023109058 W CN2023109058 W CN 2023109058W WO 2024022321 A1 WO2024022321 A1 WO 2024022321A1
Authority
WO
WIPO (PCT)
Prior art keywords
shaft
assembly
rod
ring
bearing
Prior art date
Application number
PCT/CN2023/109058
Other languages
English (en)
French (fr)
Inventor
王壬
汪立新
Original Assignee
浙江三花汽车零部件有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 浙江三花汽车零部件有限公司 filed Critical 浙江三花汽车零部件有限公司
Publication of WO2024022321A1 publication Critical patent/WO2024022321A1/zh

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Classifications

    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
    • F16C19/06—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls
    • 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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • 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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/02—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with screw-spindle
    • 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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/36—Valve members
    • F16K1/38—Valve members of conical shape
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • F16K27/0254—Construction of housing; Use of materials therefor of lift valves with conical shaped valve members
    • 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
    • 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
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • 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
    • F16K51/00—Other details not peculiar to particular types of valves or cut-off apparatus

Definitions

  • the present application relates to the field of fluid control, specifically to a shaft assembly and an electric valve.
  • mechanical structural parts such as electric valves include a shaft assembly.
  • the shaft assembly includes a compound motion rod and a moving rod.
  • the nut assembly can convert the rotational motion of the compound motion rod into linear motion, so that the compound motion rod can push the moving rod.
  • the rotational motion of the compound motion rod will be transmitted to the moving rod, which may easily cause wear of the compound motion rod and/or the moving rod.
  • the purpose of this application is to provide a shaft assembly and an electric valve that can reduce the wear of the compound motion assembly and/or the shaft assembly.
  • the shaft assembly includes a composite motion component, a shaft assembly and a bearing assembly.
  • the composite motion component can rotate around its own axis and move.
  • the shaft assembly can move in The composite motion assembly moves under the push of the composite motion assembly.
  • the shaft assembly includes a shaft and a sleeve.
  • the sleeve is connected to the shaft.
  • the shaft includes a bottom wall portion. Along the axial direction of the shaft assembly, , a portion of the composite motion component is located between the sleeve and the bottom wall;
  • the bearing assembly is provided between the shaft sleeve and the composite motion assembly, and the bearing assembly can abut against the shaft sleeve and the composite motion assembly, and/or Along the axial direction of the shaft assembly, the bottom wall portion and the composite motion assembly are provided with the a bearing assembly capable of abutting the bottom wall and the composite motion assembly;
  • the bearing assembly includes a plurality of rotating parts, the plurality of rotating parts are arranged along the circumferential direction of the compound motion assembly, and the rotating parts can rotate under the action of the compound motion assembly.
  • inventions of the present application provide an electric valve having a valve port and a valve cavity.
  • the electric valve includes a housing, a cover assembly and the above-mentioned shaft assembly.
  • the cover assembly and the The housing is sealed and connected, and the shaft of the shaft assembly can move in a direction closer to or away from the valve port.
  • the housing and the cover assembly form at least part of the wall of the valve cavity, and the shaft The portion passes through the cover assembly and is located in the valve cavity.
  • the shaft assembly includes a compound motion assembly, a shaft assembly and a bearing assembly. Since the compound motion assembly can rotate and can push the shaft assembly to move, in order to reduce the gap between the compound motion assembly and the shaft assembly
  • a bearing assembly is provided between the shaft sleeve and the composite motion assembly along the axial direction of the shaft assembly. The bearing assembly can abut against the shaft sleeve and the composite motion assembly, and/or along the axis of the shaft assembly. In the axial direction, a bearing assembly is provided between the bottom wall and the composite motion assembly.
  • the bearing assembly can abut the bottom wall and the composite motion assembly so that the shaft sleeve and/or shaft does not directly contact the composite motion assembly and passes through the bearing.
  • the assembly transmits motion between the bushing and/or shaft and the compound motion assembly; further, the bearing assembly includes a plurality of rotating parts arranged along the circumferential direction of the compound motion assembly, and the rotating parts can rotate under the action of the compound motion assembly , compared with the sliding friction generated by direct contact between the composite motion component and the bearing component, the rotational friction generated by the rotational motion of the rotating component in the embodiment of the present application is smaller than the sliding friction generated by direct contact between the composite motion component and the bearing component, so that It is convenient to reduce the friction force experienced by the composite motion component and/or the shaft component, and reduce the wear of the composite motion component and/or the shaft component.
  • the electric valve provided according to the embodiment of the present application includes a housing, a cover assembly, and the above-mentioned shaft assembly.
  • the valve port By moving the shaft of the shaft assembly in a direction closer to or away from the valve port, the valve port can be opened, closed, and flowed.
  • At least one of the adjustment, and a bearing assembly is provided in the shaft assembly of the electric valve, a plurality of rotating parts in the bearing assembly are arranged along the circumferential direction of the compound motion assembly, and the rotating parts can rotate under the action of the compound motion assembly.
  • This application implements For example, the rotational motion of the rotating part facilitates reducing the wear of the composite motion component and/or the shaft component.
  • Figure 1 is a schematic three-dimensional structural diagram of an electric valve provided by an embodiment of the present application.
  • Figure 2 is a schematic cross-sectional structural diagram of the electric valve shown in Figure 1 at one position;
  • Figure 3 is a schematic cross-sectional structural diagram of the electric valve shown in Figure 1 at another position;
  • Figure 4 is a schematic structural diagram of a shaft assembly provided by an embodiment of the present application.
  • Figure 5 is a schematic cross-sectional structural diagram of the shaft assembly shown in Figure 4 at one of its positions;
  • FIG. 6 is an enlarged structural schematic diagram of the shaft assembly shown in Figure 5 at Q;
  • Figure 7 is a schematic diagram of the fracture structure of a first rod shown in Figure 5;
  • Figure 8 is a schematic structural view of the bearing assembly shown in Figure 5;
  • Figure 9 is a schematic cross-sectional structural view of the bearing assembly shown in Figure 8 at one position;
  • Figure 10 is a partial structural schematic diagram of the shaft assembly shown in Figure 5;
  • Figure 11 is a partial cross-sectional structural diagram of the shaft assembly shown in Figure 10;
  • Figure 12 is a partial structural schematic diagram of the electric valve shown in Figure 1;
  • Figure 13 is a partial cross-sectional structural schematic diagram of the electric valve shown in Figure 12;
  • Figure 14 is a schematic three-dimensional structural view of the cover assembly shown in Figure 2;
  • Figure 15 is a schematic cross-sectional structural view of the cover assembly shown in Figure 14;
  • FIG. 16 is another partial structural diagram of the electric valve shown in FIG. 1 .
  • the embodiment of the present application provides an electric valve 1.
  • the electric valve 1 can be used in a fluid medium pipeline system to conduct, cut off or adjust the fluid flow.
  • the electric valve 1 can be applied to air conditioning systems, engine cooling systems, battery cooling systems or fuel supply systems.
  • the electric valve 1 has a valve port FK1, a valve cavity FK2, a first channel TH1 and a second channel TH2.
  • the first channel TH1 and the second channel TH2 can be connected through the valve port FK1.
  • Electric valve 1 including housing
  • the body 51, the cover assembly 60, the shaft assembly 100 and the piston 24 are sealed.
  • the cover assembly 60 and the housing 51 are sealed.
  • a sealing ring is sandwiched between the cover assembly 60 and the housing 51.
  • the sealing ring is clamped to set it.
  • the shaft assembly 100 includes a shaft 20.
  • the shaft 20 includes a main body 25.
  • the main body 25 is located on one side of the shaft 20.
  • the piston 24 and the shaft The main body 25 of 20 is connected.
  • the part of the shaft 20 and the piston 24 are located in the valve chamber FK2, and the shaft 20 can drive the piston 24 to move in the direction closer to or away from the valve port FK1.
  • the part of the shaft 20 passes through the cover assembly 60 Located in the valve cavity FK2, the cover assembly 60 can guide and limit the shaft 20.
  • the shaft 20 can drive the piston 24 to move in a direction closer to or away from the valve port FK1, which can make the first channel TH1 and the second channel TH2 conduct or close, thereby enabling the electric valve in the embodiment of the present application to conduct, cut off or Regulate fluid flow.
  • an embodiment of the present application also provides a shaft assembly 100.
  • the shaft assembly 100 It can be applied to the electric valve 1 shown in Figures 1 to 3, thereby improving the service life of the electric valve 1.
  • the shaft assembly 100 has a first receiving cavity 101 .
  • the shaft assembly 100 includes a composite motion assembly 10 , a shaft assembly 201 and a bearing assembly 40 . Parts of the composite motion assembly 10 and the bearing assembly 40 are located in the first Accommodating cavity 101, and the composite motion component 10 can rotate and move along its own axis. In specific implementation, the composite motion component 10 can move in a direction parallel to or coincident with its own axis, or at a certain angle intersecting with its own axis.
  • the electric valve 1 can also include a nut assembly 82. The nut assembly 82 can convert the rotational motion of the compound motion assembly 10 into the translational motion of the compound motion assembly 10.
  • the shaft assembly 201 can move in For example, the shaft assembly 201 can move along its own axis under the push of the compound movement assembly 10 .
  • the axis of the compound movement assembly 10 is parallel to or coincident with the axis of the shaft assembly 201 .
  • the shaft assembly 201 includes a shaft 20 and a shaft sleeve 30.
  • the shaft sleeve 30 is connected to one end of the shaft 20.
  • part of the shaft sleeve 30 can be embedded in the shaft 20 and can be in direct contact with the shaft 20. And fixed by laser welding.
  • the sleeve 30 can also be indirectly connected to the shaft 20 through other components, so that the sleeve 30 can move synchronously with the shaft 20 .
  • shaft 20 includes a side wall part 21 and a bottom wall part 22.
  • the sleeve 30, the side wall part 21 and the bottom wall part 22 jointly form at least part of the wall part of the first accommodation cavity 101.
  • At least part of the sleeve 30 and the bottom wall part 22 are Arranged at least partially along the axial direction of the shaft assembly 100 .
  • at least part of the side wall part 21 is located between the shaft sleeve 30 and the bottom wall part 22; along the axial direction of the shaft assembly 100, part of the compound motion assembly 10 is located between the shaft sleeve 30 and the bottom wall part 22 between them and located in the accommodation cavity 101 .
  • the composite motion component 10 When the composite motion component 10 rotates, it can push the sleeve 30 and the shaft 20 to move. If the composite motion component 10 contacts the sleeve 30 or the shaft 20 directly or through other components, the composite motion component 10 and the axle sleeve 30 or the shaft 20 is in direct contact or the sliding friction between other components is large, which easily causes the two components that generate friction to wear.
  • the bearing assembly 40 of the embodiment of the present application is located in the first accommodation cavity 101.
  • a bearing assembly is provided between at least one of the sleeve 30, the bottom wall 22 and the composite motion assembly 10.
  • At least one bearing assembly 40 can be disposed between the shaft sleeve 30 and the composite motion assembly 10 along the axial direction of the shaft assembly 100.
  • the bearing assembly 40 can resist the sleeve 30 and the composite motion assembly 10 respectively.
  • At least one bearing assembly 40 is provided between the bottom wall portion 22 and the composite motion assembly 10, and the bearing assembly 40 can abut against the bottom wall portion 22 and the composite motion assembly 10, so that The sleeve 30 and/or the shaft 20 are not in direct contact with the composite motion assembly 10 , and the motion between the sleeve 30 and/or the shaft 20 and the composite motion assembly 10 is transmitted through the bearing assembly 40 .
  • the bearing assembly 40 includes a support assembly 41 .
  • the support assembly 41 includes a support member 411 and a plurality of rotating members 412 .
  • the supporting member 411 and the composite motion assembly 10 are nested with each other.
  • the multiple rotating members 412 is arranged along the circumferential direction of the composite motion assembly 10 , and the plurality of rotating members 412 are all limitedly connected to the supporting member 411 and the rotating members 412 can rotate under the action of the composite motion assembly 10 .
  • the composite motion assembly 10 rotates, it can drive the rotating member 412 located between the composite motion assembly 10 and the shaft assembly 201 to rotate.
  • the rotational friction generated by the rotational motion of the rotating member 412 is less than that of the composite motion assembly 10
  • the sliding friction generated by direct contact with the bearing assembly 40 is convenient to reduce the friction force experienced by the composite motion assembly 10 and/or the shaft assembly 201, and is convenient to reduce the wear of the composite motion assembly 10 and/or the shaft assembly 201.
  • the rotating member 412 herein may be one or a combination of balls and needles.
  • the bearing assembly 40 further includes a first The shaft ring 42 and the second shaft ring 43 are located along the axial direction of the bearing assembly 40.
  • the support assembly 41 is located between the first shaft ring 42 and the second shaft ring 43.
  • the first shaft ring 42 and the second shaft ring 43 are both composite.
  • the motion components 10 are nested with each other; along the radial direction of the bearing assembly 40, one of the first shaft ring 42 and the second shaft ring 43 has an interference fit with the composite motion component 10, and there is a gap between the other one and the composite motion component 10. gap.
  • the interference fit between the first shaft ring 42 and the composite motion component 10 is taken as an example, and there is a gap between the second shaft ring 43 and the composite motion component 10 in the radial direction.
  • the axial and composite motion of the bearing assembly 40 The axial direction of the assembly 10 and the axial direction of the shaft assembly 201 are parallel or coincident. Through the above arrangement, the bearing assembly 40 can bear the axial load, so that when the composite motion assembly 10 rotates, it drives the first shaft ring 42 to rotate, thereby causing the rotating member 412 in the support assembly 41 to rotate.
  • the second shaft The ring 43 does not rotate or rotates less, thereby reducing the frictional torque between the composite motion component 10 , the bearing component 40 and the shaft component 201 , and reducing the wear of the composite motion component 10 and/or the shaft component 201 .
  • the bearing assembly 40 includes a first bearing assembly 40a and a second bearing assembly 40b.
  • the first bearing assembly 40a Located between the shaft sleeve 30 and the composite motion assembly 10
  • the second bearing assembly 40 b is located between the composite motion assembly 10 and the bottom wall 22 .
  • the first bearing assembly 40a is a plane thrust ball bearing or a needle roller thrust bearing
  • the second bearing assembly 40b is a plane thrust ball bearing or a needle roller thrust bearing.
  • the first bearing assembly 40a and the second bearing assembly 40b are the same and can both be plane thrust ball bearings, which facilitates reducing the structural size of the shaft assembly 100.
  • the needle roller thrust bearing may include a support assembly 41 and a needle roller disposed on the support assembly 41, and the needle roller thrust bearing The bearing may not be provided with the first shaft ring 42 and the second shaft ring 43, and the needle roller as the rotating member 412 can not only rotate, but also bear the axial load.
  • the needle roller thrust bearing may also be provided with at least one of the first shaft ring 42 and the second shaft ring 43 , which is not limited in this application.
  • the composite motion assembly 10 includes a first rod assembly 11 , an elastic member 12 and a second rod 13 .
  • the first rod assembly 11 and the second rod 13 are separated.
  • Set and arranged along the axial direction of the composite motion assembly 10 a part of the elastic member 12 is nested with the first rod assembly 11, and the other part of the elastic member 12 is nested with the second rod 13,
  • the rotation force can be transmitted to the second rod 13 through the elastic member 12, so that the second rod 13 also rotates.
  • part of the first rod assembly 11 passes through the through hole of the sleeve 30 and is located in the first receiving cavity 101.
  • the second rod 13 is closer to the bottom wall 22 than the first rod assembly 11.
  • the first bearing assembly 40a is connected to the first bearing assembly 40a.
  • One rod assembly 11 is nested with each other, and the second bearing assembly 40b and the second rod 13 are nested with each other.
  • the elastic member 12 is located between the first bearing assembly 40a and the second bearing assembly 40b.
  • the elastic member 12 can be a spring
  • the first bearing assembly 40a is sleeved on part of the outer peripheral side of the first rod assembly 11
  • the second bearing assembly 40b is sleeved on part of the outer peripheral side of the second rod 13
  • the first The bearing assembly 40a and the second bearing assembly 40b each include a support assembly 41, a first shaft ring 42, and a second shaft ring 43.
  • the compound motion assembly 10 can drive the shaft assembly 201 to move in the left and right directions in Figure 6.
  • the first rod assembly 11 includes a flange member 111 and a first rod 112.
  • the flange member 111 is connected to the first rod 112.
  • the flange member 111 is connected to the first rod 112.
  • the rod 112 may be an integral structure, or the flange member 111 and the first rod 112 may be provided separately, and the flange member 111 and the first rod 112 may be interference-fitted and/or welded and fixed along the axial direction of the composite motion assembly 10.
  • a bearing assembly 40a is located between the flange member 111 and the sleeve 30.
  • the second rod 13 includes a first shaft part 131 and a second shaft part 132.
  • the second bearing assembly 40b and the first shaft part 131 are nested with each other.
  • the second bearing assembly 40b is located on the second between the shaft part 132 and the bottom wall part 22, and the elastic member 12 is located between the flange part 111 and the second bearing assembly 40b, along the axial direction of the composite motion assembly 10, between the first shaft part 131 and the bottom wall part 22 Has gaps.
  • the first bearing In the assembly 40a along the axial direction of the first bearing assembly 40a, the second shaft ring 43 is located between the first shaft ring 42 and the shaft sleeve 30.
  • the first shaft ring 42 is sleeved on the outer peripheral side of the first rod 112 and is connected with the first shaft ring 42.
  • the rod 112 has an interference fit, and the first shaft ring 42 can abut against the flange 111.
  • the second shaft ring 43 does not rotate or rotates very little, and almost no sliding friction force is generated between the second shaft ring 43 and the shaft sleeve 30, thereby facilitating the reduction of the frictional torque between the second shaft ring 43 and the shaft sleeve 30. Wear of small bushing 30.
  • the second shaft ring 43 is located between the first shaft ring 42 and the bottom wall portion 22, the first shaft ring 42 has an interference fit with the first shaft portion 131, and the first shaft ring 43 has an interference fit with the first shaft portion 131.
  • the ring 42 can contact the second shaft part 132.
  • the outer wall surface of the second shaft ring 43 can be in contact with the side wall.
  • the inner surface of the portion 21 has an interference fit to facilitate limiting the axial position of the second shaft ring 43 , and the second shaft ring 43 can abut against the bottom wall portion 22 .
  • the first shaft ring 42 is a tight ring.
  • the shaft 20 can be pushed to move to the right.
  • the second shaft ring 43 is a loose ring.
  • the composite motion component 10 drives the first shaft ring 42 to rotate, thereby causing the rotating member 412 to rotate.
  • the second shaft ring 43 does not rotate or rotates very slowly. Less, almost no sliding friction force is generated between the second shaft ring 43 and the bottom wall part 22, thereby reducing the friction moment between the second shaft ring 43 and the bottom wall part 22, which is convenient for reducing the wear of the bottom wall part 22. Thereby the wear of the shaft 20 is reduced.
  • the first rod 112 includes an axis along the first bearing assembly 40a.
  • the third shaft part 1121, the fourth shaft part 1122, the fifth shaft part 1123 and the sixth shaft part 1124 arranged in sequence in the axial direction of the first rod 112 project to the axial direction of the first rod 112, and the third shaft part 1121
  • At least part of the orthographic projection of the fourth axis part 1122 is located inside the orthographic projection of the fourth axis part 1122 .
  • At least part of the orthographic projection of the fourth axis part 1122 is located inside the orthographic projection of the fifth axis part 1123 .
  • At least part of the orthographic projection of the fifth axis part 1123 is located inside. is partially located inside the orthographic projection of the sixth axis part 1124.
  • the direct projection of the third axis part 1121 The diameter of the fourth shaft part 1122 is smaller than the diameter of the fifth shaft part 1123 , and the diameter of the fifth shaft part 1123 is smaller than the diameter of the sixth shaft part 1124 .
  • the third shaft part 1121 A first shoulder is formed between the fourth shaft part 1122 and a second shaft shoulder is formed between the fourth shaft part 1122 and the fifth shaft part 1123.
  • a third shaft is formed between the fifth shaft part 1123 and the sixth shaft part 1124. shoulder.
  • the flange 111 is sleeved on the outer surface side of the third shaft part 1121 and against the first shoulder.
  • the first shaft ring 42 is sleeved on the fourth shaft part 1122.
  • the outer peripheral side has an interference fit with the fourth shaft part 1122, and the first shaft ring 42 is against the second shoulder.
  • the support assembly 41 and the second shaft ring 43 are both sleeved on the outer peripheral side of the fifth shaft part 1123.
  • the rotating member 412 is arranged around the outer circumference of the fifth shaft portion 1123, and the second shaft ring 43 is against the third shoulder, and along the radial direction of the first rod 112, the second shaft ring 43 and the fifth shaft There is a gap between the portions 1123 , and the sleeve 30 is sleeved on the outer peripheral side of the sixth shaft portion 1124 .
  • the first shoulder By providing the first shoulder, the axial position of the flange member 111 can be limited, which facilitates the assembly of the flange member 111.
  • the first shaft ring 42 of the first bearing assembly 40a can be axially positioned. It can also prevent the second shaft ring 43 from being compressed, so that the second shaft ring 43 can hardly rotate.
  • the shaft 20 also has a through hole 23.
  • the hole wall of the through hole 23 is located at the bottom wall. 22 is on the side away from the sleeve 30 , and the through hole 23 at this time is located between the bottom wall part 22 and the main body part 25 .
  • the electric valve 1 also includes an end cover 52 , a stator assembly 83 , a rotor assembly 84 and a connector 89 .
  • the end cover 52 and the housing 51 can The sealed connection is achieved through a welding process.
  • the cover assembly 60 is located in the housing 51.
  • the stator assembly 83 and the rotor assembly 84 are located in the space defined by the end cover 52 and the housing 51.
  • the stator assembly 83 includes a coil. When the coil is energized, it is in a working state. , the rotor assembly 84 can be located within the magnetic field range of the coil, so that the coil drives the rotor assembly 84 to rotate.
  • the composite motion assembly 10 in the shaft assembly 100 is connected to the rotor assembly 84 through the connector 89, so that the rotor assembly 84 drives the composite motion assembly 10 to rotate.
  • the composite motion component 10 and the connector 89 may be welded or interference-fitted.
  • the electric valve 1 also includes an isolation sleeve 88 .
  • the isolation sleeve 88 covers part of the outer peripheral side of the rotor assembly 84 , and the isolation sleeve 88 can It is sealed with the cover assembly 60 through a welding process, so that the cavity where the stator assembly 83 is located and the cavity where the rotor assembly 84 is located are isolated from each other.
  • the electric valve may also include a nut assembly 82. At least part of the nut assembly 82 is located on the side of the cover assembly 60 away from the valve port FK1.
  • the nut assembly The part 82 is sleeved on part of the outer circumferential side of the first rod 112 and is located on part of the inner circumferential side of the rotor assembly 84 , and the nut assembly 82 is threadedly connected to the first rod 112 .
  • a part of the nut assembly 82 is sleeved inside the cover assembly 60 , and the nut assembly 82 can be welded to the cover assembly 60 .
  • the electric valve 1 also includes a stop rod 85 , a spring guide rail 86 and a slip ring 87 .
  • the spring guide rail 86 The part is sleeved on part of the outer peripheral side of the nut assembly 82. Along the axial direction of the composite motion assembly 10, the spring guide rail 86 is located between the connecting piece 89 and the cover assembly 60. One end of the spring guide rail 86 can be limited with the nut assembly 82. It is set to prevent the spring guide rail 86 from moving in the axial direction of the composite motion assembly 10.
  • the slip ring 87 is spiral and the slip ring 87 is nested in the spiral gap of the spring guide rail 86.
  • the stop rod 85 is limitedly connected to the connector 89. And the stop rod 85 extends in the direction of the nut assembly 82.
  • the composite motion assembly 10 rotates, it can realize linear movement through the nut assembly 82 and drive the slip ring 87 along the spiral track of the spring guide rail 86 with the central axis of the nut assembly 82 as the The central spiral movement is achieved when the slip ring 87 abuts against the stop rod 85 or the nut assembly 83.
  • the cover assembly 60 has a second receiving cavity 61 , an installation opening 62 and a limiting opening 63 .
  • the installation opening 62 and the limiting opening 63 are located in the axial direction of the cover assembly 60 .
  • the installation port 62 and the limit port 63 are connected through the second accommodation cavity 61, and part of the shaft 20 is sleeved on the inside of the mouth where the limit port 63 is located, so that the cover assembly 60 limits the shaft 20. position and guide the axial movement of the shaft 20.
  • the shaft 20 of the shaft assembly 100 has a through hole 23.
  • the electric valve 1 also includes an anti-rotation pin 81.
  • the anti-rotation pin 81 is located in the second accommodation cavity 61, and the anti-rotation pin 81 passes through the through hole. 23 and is limitedly arranged with the cover assembly 60 , at least part of the diameter of the installation opening 62 is greater than or equal to the axial length of the anti-rotation pin 81 , and the diameter of the limit opening 63 is smaller than the axial length of the anti-rotation pin 81 .
  • the anti-rotation pin 81 can be installed from the installation opening 62 to the second accommodation cavity 61 during installation. Compared with installing the anti-rotation pin 81 from the limiting opening 63 side, the limiting opening 63 can be smaller. caliber.
  • the cover assembly 60 has a limiting groove 64.
  • the limiting groove 64 includes a limiting surface extending along the axial direction of the cover assembly 60 and arranged along the circumferential direction of the cover assembly 60.
  • the anti-rotation pin Both axial ends of 81 are located in the limiting groove 64, so that the limiting surface can limit the anti-rotation pin 81 and reduce or prevent the rotation of the anti-rotation pin 81.
  • the cover assembly 60 includes a first cover part 601 and a second cover part 602.
  • the first cover part 601 and the second cover part 602 may be made of different materials.
  • the component material of the first cover part 601 includes metal
  • the component material of the second cover part 602 includes plastic.
  • the first cover part 601 can be injection molded and connected to the second cover part 602 as an insert, and part of the first cover part 601 Protrudes from the outside of the second cover part 602 to facilitate welding of the first cover part 601 and the nut assembly 82.
  • the part of the first cover part 601 protrudes from the second cover part 602.
  • the axial end surfaces of the second cover part 602 facilitate welding of the first cover part 601 and the nut assembly 82.
  • the electric valve 1 of the embodiment of the present application also includes a diaphragm seal 70 .
  • the member 70 is sleeved on part of the outer peripheral side of the shaft 20.
  • the diaphragm seal 70 includes a first part 71, a second part 72 and a third part 73.
  • the first part 71, the second part 72 and the third part 73 are all annular structures.
  • the first part 71 and the third part 73 are connected through the second part 72, the first part 71 is sleeved on part of the outer surface side of the shaft 20 and is sealingly connected with the shaft 20, The third part 73 is sandwiched between the housing 51 and the cover assembly 60 .
  • the second part 72 can deform as the shaft 20 moves.
  • the cover assembly 60 has a first surface S1 and a second surface S1 .
  • Surface S2 is along the radial direction of the cover assembly 60.
  • the second surface S2 is located inside the first surface S1.
  • the first surface S1 is in contact with the third part 73.
  • the second surface S2 is opposite to the first surface S2.
  • the second portion 72 is closer to the diaphragm seal 70 than the first surface S1.
  • the limit port 63 is located on the second surface S2.
  • the area of the second surface S2 is larger.
  • the fluid in the electric valve 1 exerts pressure on the diaphragm seal 70, due to the pressure function, so that at least part of the second part 72 is closely attached to the second surface S2 and moves back and forth.
  • the second surface S2 in the embodiment of the present application has a larger area and is closer to the second part 72 of the diaphragm seal 70 , compared with when the anti-rotation pin is installed from the direction of the limit opening, the diameter of the limit opening is larger and a chamfer structure extending toward the second accommodation cavity is required, which may easily cause the second part to be overstretched.
  • the electric valve provided by the application embodiment can reduce or eliminate excessive stretching of the diaphragm seal 70 and increase the life of the diaphragm seal 70, thereby increasing the life of the electric valve.
  • the housing 51 in the embodiment of the present application can be a structural component, for example, it can be an integral injection molded component, or it can be a structure formed by sealing arrangements of multiple components.
  • the shaft assembly 100 in the embodiment of the present application can be applied not only to the electric valve 1 mentioned above, but also to other structural components including compound motion components and shaft assemblies.
  • the shaft assembly 100 includes the composite motion assembly 10, the shaft assembly 201 and the bearing assembly 40.
  • the shaft sleeve 30 and the bottom wall 22 in the shaft assembly 201 Together, they form part of the wall of the first accommodation cavity 101.
  • Parts of the composite motion assembly 10 and the bearing assembly 40 are located in the first accommodation cavity. Since the composite motion assembly 10 can rotate and can push the shaft assembly 201 to move, in order to reduce the size of the composite motion assembly 10 and the shaft assembly 201.
  • At least one of the sleeve 30, the bottom wall 22 and the composite motion assembly 10 is provided with at least one Bearing assembly 40, the plurality of rotating parts 412 in the bearing assembly 40 are arranged along the circumferential direction of the composite motion assembly 10, and the multiple rotating parts 412 are limitedly connected to the supporting part 411 and the rotating parts 412 can rotate, so as to facilitate the rotation of the rotating parts 412 It can rotate under the action of the compound motion assembly 10.
  • the embodiment of the present application facilitates reducing the friction force experienced by the composite motion component 10 and/or the shaft assembly 201 through the rotation of the rotating component 412, thereby reducing the friction force experienced by the composite motion component 10. and/or wear of the shaft assembly 201.
  • the shaft assembly 100 is applied to the electric valve 1, the service life of the electric valve 1 can be improved.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mounting Of Bearings Or Others (AREA)
  • Lift Valve (AREA)

Abstract

一种轴组件和电动阀，轴组件（100）包括复合运动组件（10）、轴杆组件（201）以及轴承组件（40），轴杆组件（201）包括轴杆（20）以及轴套（30），轴套（30）与轴杆（20）连接，轴杆（20）包括底壁部（22），沿轴组件（100）的轴向，复合运动组件（10）的部分位于轴套（30）和底壁部（22）之间；沿轴组件（100）的轴向，轴套（30）与复合运动组件（10）之间设置有轴承组件（40），轴承组件（40）能够与轴套（30）和复合运动组件（10）抵接，和/或沿轴组件（100）的轴向，底壁部（22）与复合运动组件（10）之间设置有轴承组件（40），轴承组件（40）能够与底壁部（22）和复合运动组件（10）抵接；轴承组件（40）包括多个转动件（412），多个转动件（412）沿复合运动组件（10）的圆周方向布置，且转动件（412）能够在复合运动组件（10）的作用下转动；这样能够减小复合运动组件（10）和/或轴杆组件（201）的磨损。

Description

轴组件和电动阀
本申请要求于2022年07月26日提交中国专利局、申请号为202210881670.3、发明名称为“轴组件和电动阀”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及流体控制领域，具体涉及一种轴组件和电动阀。
背景技术
通常，电动阀等机械结构件中包括轴组件，轴组件包括复合运动杆和移动杆，其中，通过螺母组件能够将复合运动杆的旋转运动转化为直线运动，使得复合运动杆能够推动移动杆进行直线运动，但是在复合运动杆转动过程中，复合运动杆的旋转运动会传递至移动杆，易造成复合运动杆和/或移动杆的磨损。
发明内容
本申请的目的是提供一种轴组件和电动阀，能够减小复合运动组件和/或轴杆组件的磨损。
一方面，本申请实施例提供一种轴组件，所述轴组件包括复合运动组件、轴杆组件以及轴承组件，所述复合运动组件能够绕自身轴线转动且能够移动，所述轴杆组件能够在所述复合运动组件的推动下移动，所述轴杆组件包括轴杆以及轴套，所述轴套与所述轴杆连接，所述轴杆包括底壁部，沿所述轴组件的轴向，所述复合运动组件的部分位于所述轴套和所述底壁部之间；
沿所述轴组件的轴向，所述轴套与所述复合运动组件之间设置有所述轴承组件，所述轴承组件能够与所述轴套和所述复合运动组件抵接，和/或沿所述轴组件的轴向，所述底壁部与所述复合运动组件之间设置有所述 轴承组件，所述轴承组件能够与所述底壁部和所述复合运动组件抵接；
所述轴承组件包括多个转动件，多个所述转动件沿所述复合运动组件的圆周方向布置，且所述转动件能够在所述复合运动组件的作用下转动。
另一方面，本申请实施例提供一种电动阀，所述电动阀具有阀口和阀腔，所述电动阀包括壳体、盖体组件以及上述的轴组件，所述盖体组件和所述壳体密封连接，所述轴组件的轴杆能够向靠近或远离所述阀口的方向移动，所述壳体和所述盖体组件形成所述阀腔的至少部分壁部，所述轴杆的部分穿过所述盖体组件位于所述阀腔。
根据本申请实施例提供的轴组件，轴组件包括复合运动组件、轴杆组件以及轴承组件，由于复合运动组件能够转动且能够推动轴杆组件移动，为减小复合运动组件和轴杆组件之间的摩擦，在本申请实施例中，沿轴组件的轴向，轴套与复合运动组件之间设置有轴承组件，轴承组件能够与轴套和复合运动组件抵接，和/或沿轴组件的轴向，底壁部与复合运动组件之间设置有轴承组件，轴承组件能够与底壁部和复合运动组件抵接，使得轴套和/或轴杆与复合运动组件不直接接触，并通过轴承组件传递轴套和/或轴杆与复合运动组件之间的运动；进一步地，轴承组件包括多个沿复合运动组件的圆周方向布置的转动件，且转动件能够在复合运动组件的作用下转动，相较于复合运动组件与轴承组件直接接触产生的滑动摩擦而言，本申请实施例通过转动件的旋转运动产生的转动摩擦小于将复合运动组件与轴承组件直接接触而产生的滑动摩擦，这样便于减小复合运动组件和/或轴杆组件受到的摩擦力，减小复合运动组件和/或轴杆组件的磨损。
根据本申请实施例提供的电动阀，包括壳体、盖体组件以及上述的轴组件，通过轴组件的轴杆向靠近或远离阀口的方向移动，能够实现阀口的导通、关闭以及流量调节的至少一者，且电动阀的轴组件中设置轴承组件，轴承组件中的多个转动件沿复合运动组件的圆周方向布置，且转动件能够在复合运动组件的作用下转动，本申请实施例通过转动件的旋转运动便于减小复合运动组件和/或轴杆组件的磨损。
附图说明
图1是本申请一种实施例提供的电动阀的立体结构示意图；
图2是图1中示出的一种电动阀在其中一个位置处的截面结构示意图；
图3是图1中示出的一种电动阀在另一个位置处的截面结构示意图；
图4是本申请一种实施例提供的轴组件的结构示意图；
图5是图4中示出的一种轴组件在其中一个位置处的截面结构示意图；
图6是图5中示出的一种轴组件在Q处的放大结构示意图；
图7是图5中示出的一种第一杆的断裂结构示意图；
图8是图5中示出的轴承组件的结构示意图；
图9是图8中示出的轴承组件在其中一个位置处的截面结构示意图；
图10是图5中示出的轴杆组件的部分结构示意图；
图11是图10中示出的轴杆组件的局部截面结构示意图；
图12是图1中示出的电动阀的其中一个局部结构示意图；
图13是图12中示出的电动阀的局部截面结构示意图；
图14是图2中示出的盖体组件的立体结构示意图；
图15是图14中示出的盖体组件的截面结构示意图；
图16是图1中示出的电动阀的另一个局部结构示意图。
具体实施方式
下面将对本申请的各个方面的特征和示例性实施例进行描述，为了使本申请的目的、技术方案及优点更加清楚明白，以下结合附图及具体实施例，对本申请进行进一步描述。本文中，诸如“第一”和“第二”等之类的关系术语仅仅用来将一个与另一个具有相同名称的部件区分开来，而不一定要求或者暗示这些部件之间存在任何这种实际的关系或者顺序。
如图1至图3所示，本申请实施例提供一种电动阀1，该电动阀1可以应用于流体介质管路系统中，用于导通、截止或者调节流体流量，可选地，该电动阀1可以应用于空调系统、发动机冷却系统、电池冷却系统或者燃料供应系统。
电动阀1具有阀口FK1、阀腔FK2、第一通道TH1和第二通道TH2，第一通道TH1和第二通道TH2能够通过阀口FK1连通。电动阀1包括壳 体51、盖体组件60、轴组件100以及活塞24，盖体组件60和壳体51密封连接，例如盖体组件60和壳体51之间夹设有密封圈，通过将密封圈夹紧设置以实现盖体组件60和壳体51之间的密封。盖体组件60和壳体51形成阀腔FK2的至少部分壁部，轴组件100包括轴杆20，轴杆20包括主体部25，主体部25位于轴杆20的一侧，活塞24与轴杆20的主体部25连接，轴杆20的部分和活塞24位于阀腔FK2，且轴杆20能够带动活塞24向靠近或远离阀口FK1的方向移动，轴杆20的部分穿过盖体组件60位于阀腔FK2，使得盖体组件60能够对轴杆20起到导向限位的作用。通过轴杆20能够带动活塞24向靠近或远离阀口FK1的方向移动，能够使得第一通道TH1和第二通道TH2导通或关闭，进而使得本申请实施例的电动阀能够导通、截止或者调节流体流量。
为使轴组件100中的轴杆20能够稳定地沿直线移动且提高轴组件100的使用寿命，结合图4至图6所示，本申请实施例还提供一种轴组件100，该轴组件100可以应用于图1至图3所示的电动阀1，从而便于提高电动阀1的使用寿命。
结合图3至图6所示，轴组件100具有第一容纳腔101，轴组件100包括复合运动组件10、轴杆组件201以及轴承组件40，复合运动组件10的部分和轴承组件40位于第一容纳腔101，且复合运动组件10能够沿自身轴线转动且能够移动，在具体实施时，复合运动组件10能够与沿自身轴向平行或重合的方向移动，或者沿与自身轴向相交成一定角度的方向移动，例如图1至图3中，电动阀1还可以包括螺母组件82，螺母组件82能够将复合运动组件10的转动运动转化为复合运动组件10的平移运动，轴杆组件201能够在复合运动组件10的推动下移动，例如轴杆组件201能够在复合运动组件10的推动下沿自身轴线移动，复合运动组件10的轴线与轴杆组件201的轴线平行或重合。
轴杆组件201包括轴杆20以及轴套30，轴套30与轴杆20的一端部连接，例如图6所示，轴套30的部分可以嵌入轴杆20内且可以与轴杆20直接接触并通过激光焊接固定，在其他一些实施例中，轴套30也可以通过其他部件与轴杆20间接连接，使得轴套30能够与轴杆20同步运动。轴杆 20包括侧壁部21和底壁部22，轴套30、侧壁部21和底壁部22共同形成第一容纳腔101的至少部分壁部，轴套30的至少部分和底壁部22的至少部分沿轴组件100的轴向布置。沿轴组件100的轴向，侧壁部21的至少部分位于轴套30和底壁部22之间；沿轴组件100的轴向，复合运动组件10的部分位于轴套30和底壁部22之间且位于容纳腔101内。
当复合运动组件10在转动时，能够推动轴套30、轴杆20进行移动，如果复合运动组件10与轴套30或者轴杆20直接接触或者通过其他部件接触，使得复合运动组件10与轴套30或者轴杆20直接接触或者通过其他部件之间的滑动摩擦力较大，易使得产生摩擦力的两个部件磨损。
为解决上述问题，本申请实施例的轴承组件40位于第一容纳腔101，沿复合运动组件10的轴向，轴套30、底壁部22的至少一者与复合运动组件10之间设置有至少一个轴承组件40，此时沿轴组件100的轴向，轴套30与复合运动组件10之间可以设置有至少一个轴承组件40，轴承组件40能够与轴套30和复合运动组件10分别抵接，和/或沿轴组件100的轴向，底壁部22与复合运动组件10之间设置有至少一个轴承组件40，轴承组件40能够与底壁部22和复合运动组件10抵接，使得轴套30和/或轴杆20与复合运动组件10不直接接触，并通过轴承组件40传递轴套30和/或轴杆20与复合运动组件10之间的运动。
进一步地，如图6至图9所示，轴承组件40包括支承组件41，支承组件41包括支承件411和多个转动件412，支承件411与复合运动组件10相互套设，多个转动件412沿复合运动组件10的圆周方向布置，且多个转动件412均与支承件411限位连接且转动件412能够在复合运动组件10的作用下转动。通过上述设置，当复合运动组件10在转动时，能够带动位于复合运动组件10和轴杆组件201之间的转动件412转动，通过转动件412的旋转运动产生的转动摩擦小于将复合运动组件10与轴承组件40直接接触而产生的滑动摩擦，便于减小复合运动组件10和/或轴杆组件201受到的摩擦力，便于减小复合运动组件10和/或轴杆组件201的磨损。本文中的转动件412可以为滚珠、滚针的其中一者或组合。
请进一步参阅图4至图9，在一些实施例中，轴承组件40还包括第一 轴圈42和第二轴圈43，沿轴承组件40的轴向，支承组件41位于第一轴圈42和第二轴圈43之间，第一轴圈42和第二轴圈43均与复合运动组件10相互套设；沿轴承组件40的径向，第一轴圈42和第二轴圈43的其中一者与复合运动组件10过盈配合，另一者与复合运动组件10之间具有间隙。本文中，以第一轴圈42与复合运动组件10过盈配合，第二轴圈43与复合运动组件10的径向之间具有间隙为例进行说明，且轴承组件40的轴向、复合运动组件10的轴向以及轴杆组件201的轴向平行或重合。通过上述设置，能够使得轴承组件40能够承受轴向负荷，使得复合运动组件10在转动时，带动第一轴圈42转动，进而使得支承组件41中的转动件412转动，此时的第二轴圈43不转动或者转动较少，从而能够便于减少复合运动组件10、轴承组件40以及轴杆组件201之间的摩擦力矩，便于减少复合运动组件10和/或轴杆组件201的磨损。
为减少复合运动组件10和轴杆20、以及复合运动组件10与轴套30的磨损，在一些实施例中，轴承组件40包括第一轴承组件40a和第二轴承组件40b，第一轴承组件40a位于轴套30和复合运动组件10之间，第二轴承组件40b位于复合运动组件10和底壁部22之间。其中第一轴承组件40a为平面推力球轴承或者为滚针推力轴承，和/或，第二轴承组件40b为平面推力球轴承或者为滚针推力轴承。在具体实施时，第一轴承组件40a和第二轴承组件40b相同且均可以为平面推力球轴承，便于减小轴组件100的结构尺寸。可以理解的是，当第一轴承组件40a和/或第二轴承组件40b为滚针推力轴承时，滚针推力轴承可以包括支承组件41和设置于支承组件41上的滚针，该滚针推力轴承可以不设置第一轴圈42和第二轴圈43，滚针作为转动件412不仅可以转动，还能够承受轴向载荷。或者在其他实施例中，滚针推力轴承也可以设置第一轴圈42和第二轴圈43的至少其中一者，本申请对此不进行限定。
进一步地，如图5和图6所示，在一些实施例中，复合运动组件10包括第一杆组件11、弹性件12以及第二杆13，第一杆组件11和第二杆13分体设置且沿复合运动组件10的轴向布置，弹性件12的其中一部分与第一杆组件11相互套设，弹性件12的其中另一部分与第二杆13相互套设， 第一杆组件11在转动时，转动力能够通过弹性件12传递至第二杆13，使得第二杆13也进行转动。通过上述设置，便于使复合运动组件10在转动过程中，较好地带动轴杆组件201向靠近或远离阀口的方向移动。其中，第一杆组件11的部分穿过轴套30的通孔位于第一容纳腔101，第二杆13相较于第一杆组件11更靠近底壁部22，第一轴承组件40a与第一杆组件11相互套设，第二轴承组件40b与第二杆13相互套设，沿复合运动组件10的轴向，弹性件12位于第一轴承组件40a和第二轴承组件40b之间。在具体实施时，弹性件12可以为弹簧，第一轴承组件40a套设于第一杆组件11的部分外周侧，第二轴承组件40b套设于第二杆13的部分外周侧，且第一轴承组件40a和第二轴承组件40b均包括支承组件41、第一轴圈42、第二轴圈43。如图6所示，复合运动组件10能够带动轴杆组件201沿附图6中的左、右方向移动，通过上述设置，使得复合运动组件10向右移动时，便于减小复合运动组件10和底壁部22之间的磨损，当复合运动组件10向左移动时，便于减小复合运动组件10和轴套30之间的磨损。
请进一步参阅图6，在一些实施例中，第一杆组件11包括法兰件111和第一杆112，法兰件111与第一杆112连接，可选地，法兰件111与第一杆112可以为一体结构，或者法兰件111与第一杆112分体设置，且法兰件111与第一杆112过盈配合和/或焊接固定，沿复合运动组件10的轴向，第一轴承组件40a位于法兰件111和轴套30之间。第二杆13包括第一轴部131和第二轴部132，沿第二杆13的轴向投影，第一轴部131的正投影的至少部分位于第二轴部132的正投影内，此时的第一轴部131的直径小于第二轴部132的直径，第二轴承组件40b与第一轴部131相互套设，沿第二杆13的轴向，第二轴承组件40b位于第二轴部132和底壁部22之间，且弹性件12位于法兰件111和第二轴承组件40b之间，沿复合运动组件10的轴向，第一轴部131与底壁部22之间具有间隙。通过上述设置，便于对第一轴承组件40的轴向位置和第二轴承组件40b的轴向位置进行限位。
为合理设置第一轴承组件40a和第二轴承组件40b的位置，以减小复合运动组件10和轴杆组件201之间的磨损，在一些实施例中，在第一轴承 组件40a中，沿第一轴承组件40a的轴向，第二轴圈43位于第一轴圈42和轴套30之间，第一轴圈42套设于第一杆112外周侧且与第一杆112过盈配合，且第一轴圈42能够与法兰件111抵接，沿第一杆112的径向，第二轴圈43与第一杆112之间具有间隙，且第二轴圈43能够与轴套30抵接，此时的第一轴圈42为紧圈，第二轴圈43为松圈，在图6中，当复合运动组件10在转动的同时且向左移动时，复合运动组件10带动第一轴圈42转动，进而使得转动件412转动，当第二轴圈43与轴套30抵接时，可以推动轴套30以及轴杆20向左移动，此时的第二轴圈43不转动或者转动很少，第二轴圈43与轴套30之间几乎不产生滑动摩擦力，从而便于减小第二轴圈43与轴套30之间的摩擦力矩，便于减小轴套30的磨损。
和/或，在第二轴承组件40b中，第二轴圈43位于第一轴圈42和底壁部22之间，第一轴圈42与第一轴部131过盈配合，且第一轴圈42能够与第二轴部132抵接，沿第二杆13的径向，第二轴圈43与第一轴部131之间具有间隙，且第二轴圈43的外壁面可以与侧壁部21的内表面过盈配合，便于对第二轴圈43的轴向位置进行限位，第二轴圈43能够与底壁部22抵接。此时的第一轴圈42为紧圈，当第二轴圈43与底壁部22抵接时，可以推动轴杆20向右移动，此时的第二轴圈43为松圈，在图6中，当复合运动组件10在转动的同时且向右移动时，复合运动组件10带动第一轴圈42转动，进而使得转动件412转动，此时的第二轴圈43不转动或者转动很少，第二轴圈43与底壁部22之间几乎不产生滑动摩擦力，从而减小第二轴圈43与底壁部22之间的摩擦力矩，便于减小底壁部22的磨损，从而减小轴杆20的磨损。
如图6和图7所示，为便于更好地对第一轴承组件40a中的第一轴圈42和第二轴圈43进行限位，在一些实施例中，第一杆112包括沿第一杆112的轴向顺次布置的第三轴部1121、第四轴部1122、第五轴部1123以及第六轴部1124，向第一杆112的轴向投影，第三轴部1121的正投影的至少部分位于第四轴部1122的正投影的内部，第四轴部1122的正投影的至少部分位于第五轴部1123的正投影的内部，第五轴部1123的正投影的至少部分位于第六轴部1124的正投影的内部，此时的第三轴部1121的直 径小于第四轴部1122的直径，第四轴部1122的直径小于第五轴部1123的直径，第五轴部1123的直径小于第六轴部1124的直径，此时的第三轴部1121和第四轴部1122之间形成第一轴肩，第四轴部1122和第五轴部1123之间形成第二轴肩，第五轴部1123和第六轴部1124之间形成第三轴肩。通过设置轴肩结构，便于对支承组件41、第一轴圈41和第二轴圈43进行限位。
基于此，法兰件111套设于第三轴部1121的外表面侧且抵靠于第一轴肩，在第一轴承组件40a中，第一轴圈42套设于第四轴部1122的外周侧且与第四轴部1122过盈配合，且第一轴圈42抵靠于第二轴肩，支承组件41和第二轴圈43均套设于第五轴部1123的外周侧，此时的转动件412围绕第五轴部1123的外周侧圆周布置，且第二轴圈43抵靠于第三轴肩，且沿第一杆112的径向，第二轴圈43与第五轴部1123之间具有间隙，轴套30套设于第六轴部1124的外周侧。通过设置第一轴肩，能够对法兰件111的轴向位置进行限位，便于法兰件111的装配，通过设置第二轴肩能够对第一轴承组件40a的第一轴圈42进行轴向限位同时还能够防止压紧第二轴圈43，便于使第二轴圈43几乎不转动，通过设置第三轴肩，如图6中，能够使得复合运动组件10向右运动时，能够对第二轴圈43的轴向位置进行限位，防止第一轴承组件40a中的第二轴圈43、支承组件41和第一轴圈42分离。
如图10和图11所示，为减少轴杆20的转动，在一些实施例中，轴杆20还具有通孔23，沿轴杆20的轴向，通孔23的孔壁位于底壁部22背离轴套30的一侧，此时的通孔23位于底壁部22和主体部25之间。通过设置通孔23，当轴组件100应用至图1至图3所示的电动泵或者其他结构件中时，能够将止转销设置于通孔23中，通过止转销与电动泵或者其他结构件中的止转槽的配合，能够较好的减少轴杆20的转动或者防止轴杆20转动。
基于上述可能的实现方式，当图4至图11中的轴组件100应用至电动阀1中时，能够便于提高电动阀1的寿命，且便于减小驱动力。下面对电动阀1的结构进行进一步说明。
结合图1至图3，图12至图15所示，在一些实施例中，电动阀1还包括端盖52、定子组件83、转子组件84和连接件89，端盖52与壳体51可以通过焊接工艺实现密封连接，盖体组件60位于壳体51内，定子组件83和转子组件84位于端盖52与壳体51限定的空间内，定子组件83包括线圈，当线圈通电处于工作状态时，转子组件84能够位于线圈的磁场范围内，使得线圈驱动转子组件84转动，轴组件100中的复合运动组件10通过连接件89与转子组件84连接，使得转子组件84带动复合运动组件10转动。可选地，复合运动组件10与连接件89可以焊接或者过盈配合。为保护定子组件83中的线圈，防止流体造成线圈的损坏，在一些实施例中，电动阀1还包括隔离套88，隔离套88罩设于转子组件84的部分外周侧，且隔离套88可以与盖体组件60通过焊接工艺密封设置，从而使得定子组件83所在腔和转子组件84所在腔相互隔离。
为使复合运动组件10的转动运动转化为直线运动，在一些实施例中，电动阀还可以包括螺母组件82，螺母组件82的至少部分位于盖体组件60背离阀口FK1的一侧，螺母组件82的部分套设于第一杆112的部分外周侧且位于转子组件84的部分内周侧，且螺母组件82与第一杆112螺纹连接。为对螺母组件82的位置进行限位，在一些实施例中，螺母组件82的一部分套设于盖体组件60内侧，且螺母组件82可以与盖体组件60焊接设置。
进一步如图12至图16所示，为对复合运动组件10的转动位置进行限位，在一些实施例中，电动阀1还包括止动杆85、弹簧导轨86以及滑环87，弹簧导轨86的部分套设于螺母组件82的部分外周侧，沿复合运动组件10的轴向，弹簧导轨86位于连接件89和盖体组件60之间，弹簧导轨86的一端部可以与螺母组件82限位设置，防止弹簧导轨86沿复合运动组件10的轴向移动，滑环87呈螺旋状且滑环87嵌套至弹簧导轨86的螺圈间隙中，止动杆85与连接件89限位连接，且止动杆85向螺母组件82方向延伸，在复合运动组件10在转动时，能够通过螺母组件82实现直线移动，并带动滑环87沿着弹簧导轨86的螺旋轨道以螺母组件82中心轴线为中心螺旋运动，当滑环87抵靠至止动杆85或者螺母组件83时，从而实现 复合运动组件10的轴向限位。
请进一步参阅图12至图15，在一些实施例中，盖体组件60具有第二容纳腔61、安装口62和限位口63，安装口62和限位口63位于盖体组件60轴向方向的两侧，安装口62和限位口63通过第二容纳腔61连通，轴杆20的部分套设于限位口63所在口部的内侧，使得盖体组件60对轴杆20进行限位以及对轴杆20的轴向移动进行导向。为防止轴杆20的转动，轴组件100的轴杆20具有通孔23，电动阀1还包括止转销81，止转销81位于第二容纳腔61，止转销81穿设于通孔23且与盖体组件60限位设置，安装口62的至少部分口径大于或等于止转销81的轴向长度，限位口63的口径小于止转销81的轴向长度。通过上述设置，使得止转销81在安装时，能够从安装口62向第二容纳腔61安装，相较于从限位口63侧安装止转销81而言，能够减小限位口63的口径。为防止止转销81转动，盖体组件60具有限位槽64，限位槽64包括沿盖体组件60的轴向延伸且沿盖体组件60的圆周方向布置的限位面，止转销81轴向的两端均位于限位槽64内，使得限位面能够对止转销81进行限位，减少或防止止转销81的转动。
由于螺母组件82可以与盖体组件60焊接设置，为便于焊接，盖体组件60包括第一盖部601和第二盖部602，第一盖部601和第二盖部602的组成材料可以不同，例如第一盖部601的组成材料包括金属，第二盖部602的组成材料包括塑料，第一盖部601可以作为嵌件与第二盖部602注塑连接，且第一盖部601的部分凸出于第二盖部602的外部，便于使第一盖部601与螺母组件82焊接，例如图3和图13中沿轴杆20的轴向，第一盖部601的部分凸出于第二盖部602的轴向端面，便于第一盖部601与螺母组件82焊接。
进一步地，为减少或防止流体从阀腔FK2流入转子组件84所在腔，结合图1至图3、图13所示，本申请实施例的电动阀1还包括膜片密封件70，膜片密封件70套设于轴杆20的部分外周侧，膜片密封件70包括第一部分71、第二部分72以及第三部分73，第一部分71、第二部分72以及第三部分73均为环形结构，第一部分71和第三部分73通过第二部分72连接，第一部分71套设于轴杆20的部分外表面侧且与轴杆20密封连接， 第三部分73夹设于壳体51和盖体组件60之间，第二部分72能够随着轴杆20的移动变形，通过上述设置，能够使膜片密封件70实现较好的密封。
由于止转销81自安装口62方向安装，使得限位口63的口径较小，进一步参阅图13至图15所示，在一些实施例中，盖体组件60具有第一面S1和第二面S2，沿盖体组件60的径向，第二面S2位于第一面S1的内侧，第一面S1与第三部分73抵接，沿盖体组件60的轴向，第二面S2相较于第一面S1更靠近膜片密封件70的第二部分72。其中限位口63位于第二面S2，由于限位口63的口径较小，使得第二面S2的面积较大，当电动阀1中的流体对膜片密封件70产生压力时，由于压力作用，使得第二部分72的至少部分紧贴至第二面S2并进行往复移动，由于本申请实施例中的第二面S2的面积较大且更靠近膜片密封件70的第二部分72，相较于由于止转销从限位口方向安装时，使得限位口的口径较大且需设置向第二容纳腔方向延伸的倒角结构易造成第二部分过度拉伸而言，本申请实施例提供的电动阀能够减少或消除膜片密封件70的过度拉伸，提高膜片密封件70寿命，从而提高电动阀的寿命。
可以理解的是，本申请实施例的壳体51可以是一个结构件，例如可以是一体注塑件，也可以是多个部件密封设置形成的结构。本申请实施例的轴组件100不仅可以应用于上述的电动阀1，还可以应用至包括复合运动组件以及轴杆组件的其他结构件中。
综上，根据本申请实施例提供的轴组件100和电动阀1，轴组件100包括复合运动组件10、轴杆组件201以及轴承组件40，轴杆组件201中的轴套30和底壁部22共同形成第一容纳腔101的部分壁部，复合运动组件10的部分以及轴承组件40位于第一容纳腔，由于复合运动组件10能够转动且能够推动轴杆组件201移动，为减小复合运动组件10和轴杆组件201之间的摩擦，在本申请实施例中，沿复合运动组件10的轴向，轴套30、底壁部22的至少一者与复合运动组件10之间设置有至少一个轴承组件40，轴承组件40中的多个转动件412沿复合运动组件10的圆周方向布置，且多个转动件412均与支承件411限位连接且转动件412能够转动，便于使转动件412能够在复合运动组件10的作用下转动，相较于将复合运动组 件与轴承组件直接接触而产生的滑动摩擦而言，本申请实施例通过转动件412的旋转运动便于减小复合运动组件10和/或轴杆组件201受到的摩擦力，减小复合运动组件10和/或轴杆组件201的磨损。当轴组件100应用至电动阀1时，能够提高电动阀1的使用寿命。
需要说明的是：以上实施方式仅用于说明本申请而并非限制本申请所描述的技术方案，例如对“前”、“后”、“左”、“右”、“上”、“下”等方向性的界定，尽管本说明书参照上述的实施方式对本申请已进行了说明，但是，本领域的普通技术人员应当理解，所属技术领域的技术人员仍然可以对本申请进行修改、结合或者等同替换，而一切不脱离本申请的精神和范围的技术方案及其改进，均应涵盖在本申请的权利要求范围内。

Claims (15)

  1. 一种轴组件(100)，其特征在于，所述轴组件(100)包括复合运动组件(10)、轴杆组件(201)以及轴承组件(40)，所述复合运动组件(10)能够绕自身轴线转动且能够移动，所述轴杆组件(201)能够在所述复合运动组件(10)的推动下移动，所述轴杆组件(201)包括轴杆(20)以及轴套(30)，所述轴套(30)与所述轴杆(20)连接，所述轴杆(20)包括底壁部(22)，沿所述轴组件(100)的轴向，所述复合运动组件(10)的部分位于所述轴套(30)和所述底壁部(22)之间；
    沿所述轴组件(100)的轴向，所述轴套(30)与所述复合运动组件(10)之间设置有所述轴承组件(40)，所述轴承组件(40)能够与所述轴套(30)和所述复合运动组件(10)抵接，和/或沿所述轴组件(100)的轴向，所述底壁部(22)与所述复合运动组件(10)之间设置有所述轴承组件(40)，所述轴承组件(40)能够与所述底壁部(22)和所述复合运动组件(10)抵接；
    所述轴承组件(40)包括多个转动件(412)，多个所述转动件(412)沿所述复合运动组件(10)的圆周方向布置，且所述转动件(412)能够在所述复合运动组件(10)的作用下转动。
  2. 根据权利要求1所述的轴组件(100)，其特征在于，所述轴承组件(40)还包括第一轴圈(42)和第二轴圈(43)，沿所述轴承组件(40)的轴向，所述转动件(412)位于所述第一轴圈(42)和所述第二轴圈(43)之间，所述第一轴圈(42)和所述第二轴圈(43)均与所述复合运动组件(10)相互套设；
    所述第一轴圈(42)和所述第二轴圈(43)的其中一者与所述复合运动组件(10)过盈配合，另一者与所述复合运动组件(10)之间具有间隙。
  3. 根据权利要求2所述的轴组件(100)，其特征在于，所述轴承组件(40)包括第一轴承组件(40a)和第二轴承组件(40b)，沿所述轴组件(100)的轴向，所述第一轴承组件(40a)位于所述轴套(30)和所述复合运动组件(10)之间，所述第二轴承组件(40b)位于所述复合运动组件(10)和所述底壁部(22)之间。
  4. 根据权利要求3所述的轴组件(100)，其特征在于，所述复合运动组件(10)包括第一杆组件(11)和弹性件(12)以及第二杆(13)，所述第一杆组件(11)和所述第二杆(13)分体设置且沿所述复合运动组件(10)的轴向布置，所述弹性件(12)的其中一部分与所述第一杆组件(11)相互套设，所述弹性件(12)的其中另一部分与所述第二杆(13)相互套设；
    所述第一轴承组件(40a)与所述第一杆组件(11)相互套设，所述第二轴承组件(40b)与所述第二杆(13)相互套设，沿所述轴组件(100)的轴向，所述弹性件(12)位于所述第一轴承组件(40a)和所述第二轴承组件(40b)之间。
  5. 根据权利要求4所述的轴组件(100)，其特征在于，所述第一杆组件(11)包括法兰件(111)和第一杆(112)，所述法兰件(111)与所述第一杆(112)连接，沿所述轴组件(100)的轴向，所述第一轴承组件(40a)位于所述法兰件(111)和所述轴套(30)之间；
    所述弹性件(12)位于所述法兰件(111)和所述第二轴承组件(40b)之间。
  6. 根据权利要求5所述的轴组件(100)，其特征在于，在所述第一轴承组件(40a)中，所述第二轴圈(43)位于所述第一轴圈(42)和所述轴套(30)之间，所述第一轴圈(42)与所述第一杆(112)过盈配合，且所述第一轴圈(42)能够与所述法兰件(111)抵接，沿所述第一杆(112)的径向，所述第二轴圈(43)与所述第一杆(112)之间具有间隙，所述第二轴圈(43)能够与所述轴套(30)抵接。
  7. 根据权利要求4所述的轴组件(100)，其特征在于，所述第二杆(13)包括第一轴部(131)和第二轴部(132)，沿所述第二杆(13)的轴向投影，所述第一轴部(131)的正投影的至少部分位于所述第二轴部(132)的正投影内，所述第二轴承组件(40b)与所述第一轴部(131)相互套设，沿所述第二杆(13)的轴向，所述第二轴承组件(40b)位于所述第二轴部(132)和所述底壁部(22)之间。
  8. 根据权利要求7所述的轴组件(100)，其特征在于，在所述第二轴承组件(40b)中，所述第二轴圈(43)位于所述第一轴圈(42)和所述底 壁部(22)之间，所述第一轴圈(42)与所述第一轴部(131)过盈配合，且所述第一轴圈(42)能够与所述第二轴部(132)抵接，沿所述第二杆(13)的径向，所述第二轴圈(43)与所述第一轴部(131)之间具有间隙，所述第二轴圈(43)能够与所述底壁部(22)抵接。
  9. 根据权利要求5至8任意一项所述的轴组件(100)，其特征在于，所述第一杆(112)包括沿所述第一杆(112)的轴向顺次布置的第三轴部(1121)、第四轴部(1122)、第五轴部(1123)以及第六轴部(1124)，向所述第一杆(112)的轴向投影，所述第三轴部(1121)的正投影的至少部分位于所述第四轴部(1122)的正投影的内部，所述第四轴部(1122)的正投影的至少部分位于所述第五轴部(1123)的正投影的内部，所述第五轴部(1123)的正投影的至少部分位于所述第六轴部(1124)的正投影的内部。
  10. 根据权利要求9所述的轴组件(100)，其特征在于，所述第一杆组件(11)包括法兰件(111)，所述法兰件(111)套设于所述第三轴部(1121)的外表面侧，在所述第一轴承组件(40a)中，所述第一轴圈(42)套设于所述第四轴部(1122)的外周侧且与所述第四轴部(1122)过盈配合，所述第二轴圈(43)套设于所述第五轴部(1123)的外周侧且所述转动件(412)围绕所述第五轴部(1123)的外周侧圆周布置，且沿所述第一杆(112)的径向，所述第二轴圈(43)与所述第五轴部(1123)之间具有间隙，所述轴套(30)套设于所述第六轴部(1124)的外周侧。
  11. 根据权利要求3至8任意一项所述的轴组件(100)，其特征在于，所述第一轴承组件(40a)为平面推力球轴承或者滚针推力轴承；
    和/或所述第二轴承组件(40b)为平面推力球轴承或者滚针推力轴承。
  12. 根据权利要求1至8任意一项所述的轴组件(100)，其特征在于，所述轴杆(20)还包括通孔(23)，沿所述轴杆(20)的轴向，所述通孔(23)的孔壁位于所述底壁部(22)背离所述轴套(30)的一侧。
  13. 一种电动阀(1)，其特征在于，所述电动阀(1)具有阀口(FK1)和阀腔(FK2)，所述电动阀(1)包括壳体(51)、盖体组件(60)以及权利要求1至12任意一项所述的轴组件(100)，所述盖体组件(60)和所述 壳体(51)密封连接，所述轴组件(100)的轴杆(20)能够向靠近或远离所述阀口(FK1)的方向移动，所述壳体(51)和所述盖体组件(60)形成所述阀腔(FK2)的至少部分壁部，所述轴杆(20)的部分穿过所述盖体组件(60)位于所述阀腔(FK2)。
  14. 根据权利要求13所述的电动阀(1)，其特征在于，所述电动阀(1)还包括膜片密封件(70)，所述膜片密封件(70)包括第一部分(71)、第二部分(72)和第三部分(73)，所述第一部分(71)和所述第三部分(73)通过所述第二部分(72)连接，所述第一部分(71)套设于所述轴杆(20)的部分外表面侧且与所述轴杆(20)密封连接，所述第三部分(73)夹设于所述壳体(51)和所述盖体组件(60)之间；
    所述盖体组件(60)具有第一面(S1)和第二面(S2)，沿所述盖体组件(60)的径向，所述第二面(S2)位于所述第一面(S1)的内侧，所述第一面(S1)与所述第三部分(73)抵接，沿所述盖体组件(60)的轴向，所述第二面(S2)相较于所述第一面(S1)更靠近所述第二部分(72)。
  15. 根据权利要求14所述的电动阀(1)，其特征在于，所述盖体组件(60)具有第二容纳腔(61)、安装口(62)和限位口(63)，所述安装口(62)和所述限位口(63)位于所述盖体组件(60)轴向方向的两侧，所述安装口(62)和所述限位口(63)通过所述第二容纳腔(61)连通，所述轴杆(20)的部分套设于所述限位口(63)所在口部的内侧；
    所述轴组件(100)包括轴杆(20)，所述轴杆(20)具有通孔(23)，所述电动阀(1)还包括止转销(81)，所述止转销(81)穿设于所述通孔(23)且与所述盖体组件(60)限位设置，所述安装口(62)的至少部分口径大于或等于所述止转销(81)的轴向长度，所述限位口(63)的口径小于所述止转销(81)的轴向长度。
PCT/CN2023/109058 2022-07-26 2023-07-25 轴组件和电动阀 WO2024022321A1 (zh)

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