CN110360012B - Electronic throttle valve output shaft assembly and manufacturing method - Google Patents
Electronic throttle valve output shaft assembly and manufacturing method Download PDFInfo
- Publication number
- CN110360012B CN110360012B CN201910735962.4A CN201910735962A CN110360012B CN 110360012 B CN110360012 B CN 110360012B CN 201910735962 A CN201910735962 A CN 201910735962A CN 110360012 B CN110360012 B CN 110360012B
- Authority
- CN
- China
- Prior art keywords
- magnet
- metal shaft
- sector gear
- manufacturing
- die
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 239000002184 metal Substances 0.000 claims abstract description 77
- 210000000078 claw Anatomy 0.000 claims abstract description 21
- 238000009966 trimming Methods 0.000 claims abstract description 16
- 238000002347 injection Methods 0.000 claims abstract description 5
- 239000007924 injection Substances 0.000 claims abstract description 5
- 238000001746 injection moulding Methods 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 6
- 239000003292 glue Substances 0.000 claims description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract description 2
- 238000003466 welding Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14467—Joining articles or parts of a single article
- B29C45/14491—Injecting material between coaxial articles, e.g. between a core and an outside sleeve for making a roll
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
- F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
- F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
- F02D9/107—Manufacturing or mounting details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
- F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
- F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
- F02D9/1075—Materials, e.g. composites
- F02D9/108—Plastics
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
- F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
- F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
- F02D9/1075—Materials, e.g. composites
- F02D9/1085—Non-organic materials, e.g. metals, alloys, ceramics
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Ceramic Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses an electronic throttle valve output shaft assembly and a manufacturing method thereof, which relate to the field of automobile parts and comprise the following steps: the sector gear is provided with a magnet which is surrounded and fixed on the sector gear through a claw structure; the metal shaft is perpendicular to the plane where the sector gear is located, the top end of the metal shaft is embedded into one surface, away from the magnet, of the sector gear, and the metal shaft is provided with: the first limiting component is arranged at the top end of the metal shaft and is provided with a cylindrical surface trimming edge for limiting the relative rotation of the metal shaft and the sector gear; the second limiting component is arranged below the first limiting component of the metal shaft; the annular groove is arranged below the second limiting part of the metal shaft; the center of the magnet is coincident with the axis of the metal shaft, and the metal shaft, the sector gear, the magnet and the claw structure are integrally injection molded. Has the following beneficial effects: the structure is simple, the one-time injection molding is carried out, the manufacturing process is simple, no subsequent installation procedure is adopted, and the connection among the metal shaft, the sector gear and the magnet is firm.
Description
Technical Field
The invention relates to an automobile part, in particular to an electronic throttle valve output shaft assembly and a manufacturing method thereof.
Background
The throttle valve is a controllable valve for controlling air to enter the engine, and is connected with an air filter on the throttle valve and an engine cylinder on the throttle valve, and is called as the throat of the automobile engine. The modern advanced gasoline engine and diesel engine systems comprise a throttle valve structure, and are mainly used for realizing accurate control of the air inflow of the engine. The throttle valve has two types of traditional stay wire type and electronic throttle valve, wherein the electronic throttle valve mainly controls the opening angle of the throttle valve according to the energy required by an engine through a throttle valve position sensor, so that the size of the air inflow is adjusted. The existing throttle valve product comprises a basic transmission device composed of a metal shaft, a sector gear and a magnet, wherein the magnet and a position sensor in the throttle valve work cooperatively, and the position sensor can send the change information of the magnetic field of the magnet to an ECU (Electronic Control Unit, an electronic control unit), so that the ECU can accurately control the opening angle of a throttle valve disc.
The metal shaft and the sector gear are connected together in the existing product by a laser welding mode, the connecting mode has high investment cost, and meanwhile, the requirement on the welding process is high, so that the production efficiency is greatly reduced; the magnet is fixed through hot riveting between the sector gear and the magnet in the existing product, the magnet needs to be coated in a plastic structure, then the magnet is hot riveted on the sector gear, the working procedures are more, the complex production efficiency is low, or the magnet glue is stuck on the sector gear, but the sticking efficiency is low, the glue can be degummed, and the instability of the product performance is easily caused.
Disclosure of Invention
In order to solve the above problems, the present invention provides an electronic throttle valve comprising:
The fan-shaped gear is provided with a magnet, and the magnet is surrounded and fixed on the fan-shaped gear through a claw structure;
the metal shaft is perpendicular to the plane where the sector gear is located, the top end of the metal shaft is embedded into one face, deviating from the magnet, of the sector gear, and the metal shaft is provided with:
The first limiting part is arranged at the top end of the metal shaft and is provided with a cylindrical surface trimming edge for limiting the relative rotation of the metal shaft and the sector gear;
The second limiting component is arranged on the metal shaft and is positioned below the first limiting component;
The annular groove is arranged on the metal shaft and is positioned below the second limiting part.
The center of the magnet coincides with the axis of the metal shaft, and the metal shaft, the sector gear, the magnet and the claw structure are integrally injection molded.
Preferably, a plurality of grooves are formed in the surface of the second limiting member along the length direction of the metal shaft.
Preferably, the magnet has an anti-rotation structure.
Preferably, the magnet is cylindrical and has a cut edge;
The claw structure is:
The hollow cylinder encloses the magnet;
The herringbone groove is arranged at the top of the hollow cylinder, is communicated with the magnet and extends to the side face of the hollow cylinder;
and the attaching part is attached to the trimming part.
Preferably, two magnetizing holes are arranged at the top of the sector gear, and the connecting lines of the two magnetizing holes are parallel to the trimming edges of the magnet.
Preferably, the magnet is a cuboid;
The claw structure is:
Column bodies which are respectively arranged at four corners of the magnet and enclose the magnet;
And the top cover is arranged at the top of the columnar body and extends towards the direction of the magnet.
Preferably, two magnetizing holes are arranged at the top of the sector gear, and connecting lines of the magnetizing holes are parallel to the side length of the magnet.
Preferably, the metal shaft further comprises a valve plate groove, the valve plate groove is arranged in the middle of the metal shaft, and the valve plate groove penetrates through the metal shaft.
Preferably, a manufacturing method of an electronic throttle valve output shaft assembly is used for manufacturing the electronic throttle valve output shaft assembly, and a sector gear die is manufactured in advance, wherein a guide structure and the claw structure are arranged on the sector gear die;
The manufacturing method of the electronic throttle valve output shaft assembly specifically comprises the following steps:
Step S1, placing the magnet into the sector gear die through the guide structure and fixing the magnet through the claw structure;
Step S2, the top end of the metal shaft extends into a die cavity of the sector gear die, which is far away from one surface of the magnet;
s3, inserting a positioning insert for limiting the rotation of the metal shaft into a valve plate groove arranged on the metal shaft;
and S4, injecting glue and injecting so as to obtain the electronic throttle valve output shaft assembly formed by integral injection molding.
Has the following beneficial effects:
the electronic throttle valve output shaft assembly has the advantages of simple structure, one-time injection molding, simple manufacturing process, no subsequent installation procedure and firm connection between the metal shaft and the sector gear and between the metal shaft and the magnet.
Drawings
FIG. 1 is a cross-sectional view of an electronic throttle output shaft assembly in accordance with a preferred embodiment of the present invention;
FIG. 2 is a schematic view of an output shaft assembly of an electronic throttle according to a preferred embodiment of the present invention;
FIG. 3 is a schematic view of an electronic throttle output shaft assembly according to a preferred embodiment of the present invention;
FIG. 4 is a schematic view of a metal shaft according to a preferred embodiment of the present invention;
FIG. 5 is a schematic view showing the shape of a magnet according to a preferred embodiment of the present invention;
FIG. 6 is a schematic view of a shape of a magnet according to a preferred embodiment of the present invention;
FIG. 7 is a schematic view of a sector mold in accordance with a preferred embodiment of the present invention;
FIG. 8 is a flow chart of a method of manufacturing an integrally formed electronic throttle output shaft assembly in accordance with a preferred embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
The invention is further described below with reference to the drawings and specific examples, which are not intended to be limiting.
In order to solve the above-described problems, the present invention proposes an electronic throttle valve, as shown in fig. 1 to 4, comprising:
The sector gear 2, a magnet 3 is arranged on the sector gear 2, and the magnet 3 is surrounded and fixed on the sector gear 2 through a claw structure;
The metal axle 1, the plane mutually perpendicular that metal axle 1 and sector gear 2 are located, and the top embedding sector gear 2 of metal axle 1 deviate from the one side of magnet 3, be equipped with on the metal axle 1:
The first limiting part is arranged at the top end of the metal shaft 1 and is provided with a cylindrical surface trimming edge 13 for limiting the relative rotation of the metal shaft 1 and the sector gear 2;
The second limiting component is arranged on the metal shaft 1 and is positioned below the first limiting component;
The annular groove 12 is arranged on the metal shaft 1 and is positioned below the second limiting component.
The center of the magnet 3 is coincident with the axis of the metal shaft 1, and the metal shaft 1, the sector gear 2, the magnet 3 and the claw structure are integrally injection molded.
Specifically, in this embodiment, the cylindrical surface trimming 13 is disposed at the top of the metal shaft 1, and the metal shaft 1 and the sector gear 2 can be more bonded by using the cylindrical surface trimming 13, so that the sector gear 2 drives the metal shaft 1 to rotate without generating relative sliding, the annular groove 12 surrounds the metal shaft 1, so that no axial displacement along the metal shaft 1 is generated between the metal shaft 1 and the sector gear 2, the claw structure is disposed at the top of the sector gear 2 for fixing the magnet 3, the magnet 3 is prevented from separating from the claw structure, the center of the magnet 3 is concentric with the axis of the metal shaft 1, and when the sector gear 2 rotates, the magnet 3 and the metal shaft 1 are ensured to synchronously rotate along with the sector gear 2.
In a preferred embodiment of the present invention, as shown in fig. 4, a plurality of scribe grooves 11 are formed on the surface of the second limiting member along the length direction of the metal shaft 1.
Specifically, in this embodiment, the scratch groove 11 is provided on the surface of the metal shaft 1 along the length direction of the metal shaft 1, so that the sliding between the metal shaft 1 and the sector gear 2 can be prevented, and the effect is better when the metal shaft is matched with the annular groove 12.
In the preferred embodiment of the present invention, the magnet 3 has an anti-rotation structure.
In the preferred embodiment of the present invention, as shown in fig. 5, the magnet 3 is a cylinder and has a cut edge 31;
the claw structure is:
A hollow cylinder 41, the hollow cylinder 41 enclosing the magnet 3;
The herringbone groove 42 is arranged at the top of the hollow cylinder 41, and the herringbone groove 42 is communicated with the magnet 3 and extends to the side surface of the hollow cylinder 41;
and a bonding part 43 bonded to the edge 31.
Specifically, in this embodiment, a hollow cylinder 41 encloses the magnet 3, and after the herringbone groove 42 is formed in the top of the hollow cylinder 41, the rest of the top of the hollow cylinder 41 restricts the movement of the magnet 3 in the radial direction, and the fitting portion 43 is disposed at the trimming edge 31 to restrict the movement of the magnet 3 in the horizontal direction.
In the preferred embodiment of the present invention, two magnetizing holes 21 are provided on the top of the sector gear 2, and the connecting line of the two magnetizing holes 2 is parallel to the cut edge 31 of the magnet 3.
In a preferred embodiment of the present invention, as shown in fig. 6, the magnet is a cuboid;
the claw structure is:
Column bodies 51 provided at four corners of the magnet 3, respectively, and enclosing the magnet 3;
the top cover 52 is provided on top of the columnar body 51 and extends in the direction of the magnet 3.
In the preferred embodiment of the present invention, two magnetizing holes 21 are provided on the top of the sector gear 2, and the connecting lines of the magnetizing holes 21 are parallel to the side length of the magnet 3.
In the preferred embodiment of the present invention, the metal shaft 1 further includes a valve plate groove 14 disposed in the middle of the metal shaft 1, and the valve plate groove 14 penetrates through the metal shaft 1.
A method of manufacturing an electronic throttle output shaft assembly according to any one of claims 1 to 8, wherein a sector gear die 6 is prefabricated, the sector gear die being provided with a guide structure and a claw structure;
The method for manufacturing the electronic throttle valve output shaft assembly, as shown in fig. 8, specifically includes:
s1, placing a magnet into a sector gear die through a guide structure, and fixing the magnet through a claw structure;
step S2, the top end of the metal shaft stretches into a die cavity of one surface, far away from the magnet, of the sector gear die;
s3, inserting a positioning insert for limiting the rotation of the metal shaft into a valve plate groove arranged on the metal shaft;
and S4, injecting glue and injecting injection to obtain the electronic throttle valve output shaft assembly formed by integral injection molding.
Specifically, in the present embodiment, as shown in fig. 7, a first bump 61 is disposed in the sector gear mold 6, and the trimming edge 31 is attached to a surface of the first bump 61 facing the sector gear mold 6; a herringbone lug 62 is arranged at the bottom of the sector gear die 6 and extends towards the inner wall of the sector gear die 6, a tangential surface 63 inclined towards the bottom of the sector gear die 6 is arranged at one end of the herringbone lug 62 away from the sector gear die 6, and the tangential surface 63 forms a reverse structure on the herringbone lug 62, so that the magnet 3 is conveniently placed into the sector gear die 6.
The foregoing description is only illustrative of the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, and it will be appreciated by those skilled in the art that equivalent substitutions and obvious variations may be made using the description and illustrations of the present invention, and are intended to be included within the scope of the present invention.
Claims (4)
1. A method of manufacturing an electronic throttle output shaft assembly, the method for manufacturing an electronic throttle output shaft assembly comprising:
The fan-shaped gear is provided with a magnet, and the magnet is surrounded and fixed on the fan-shaped gear through a claw structure;
the metal shaft is perpendicular to the plane where the sector gear is located, the top end of the metal shaft is embedded into one face, deviating from the magnet, of the sector gear, and the metal shaft is provided with:
The first limiting part is arranged at the top end of the metal shaft and is provided with a cylindrical surface trimming edge for limiting the relative rotation of the metal shaft and the sector gear;
The second limiting component is arranged on the metal shaft and is positioned below the first limiting component;
The annular groove is arranged on the metal shaft and is positioned below the second limiting part; the center of the magnet is coincident with the axis of the metal shaft, and the metal shaft, the sector gear, the magnet and the claw structure are integrally injection molded;
The magnet is provided with an anti-rotation structure;
the magnet is a cylinder and is provided with a trimming edge;
The claw structure is:
The hollow cylinder encloses the magnet;
The herringbone groove is arranged at the top of the hollow cylinder, is communicated with the magnet and extends to the side face of the hollow cylinder;
a bonding part bonded to the trimming part;
The top of the hollow cylinder is in contact with the top of the magnet to limit movement of the magnet in a radial direction;
The attaching part is contacted with the trimming to limit the horizontal movement of the magnet;
A plurality of scribed grooves are formed in the part, which is not provided with the cylindrical surface trimming, of the first limiting part along the length direction of the metal shaft;
The manufacturing method comprises the steps of manufacturing a sector gear die in advance, wherein a guide structure is arranged on the sector gear die, the claw structure is arranged on the sector gear die, a first lug is arranged on the sector gear die, the trimming edge of a magnet is attached to one surface of the first lug, which faces the sector gear die, a herringbone lug is arranged at the bottom of the sector gear die and extends towards the inner wall of the sector gear die, tangential surfaces which incline towards the bottom of the sector gear die are respectively arranged at one end, away from the sector gear die, of the herringbone lug, and form the guide structure on the herringbone lug, so that the magnet is conveniently placed in the sector gear;
The manufacturing method of the electronic throttle valve output shaft assembly specifically comprises the following steps:
Step S1, placing the magnet into the sector gear die through the guide structure and fixing the magnet through the claw structure;
Step S2, the top end of the metal shaft extends into a die cavity of the sector gear die, which is far away from one surface of the magnet;
s3, inserting a positioning insert for limiting the rotation of the metal shaft into a valve plate groove arranged on the metal shaft;
and S4, injecting glue and injecting so as to obtain the electronic throttle valve output shaft assembly formed by integral injection molding.
2. The method of manufacturing an electronic throttle valve output shaft assembly according to claim 1, wherein a plurality of grooves are provided on a surface of the second stopper member along a length direction of the metal shaft.
3. The method of claim 1, wherein two magnetizing holes are provided at the top of the sector gear, and a connecting line of the two magnetizing holes is parallel to the trimming of the magnet.
4. The method of claim 1, wherein the metal shaft further comprises a valve plate slot disposed in a middle portion of the metal shaft, and the valve plate slot penetrates the metal shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910735962.4A CN110360012B (en) | 2019-08-09 | 2019-08-09 | Electronic throttle valve output shaft assembly and manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910735962.4A CN110360012B (en) | 2019-08-09 | 2019-08-09 | Electronic throttle valve output shaft assembly and manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110360012A CN110360012A (en) | 2019-10-22 |
| CN110360012B true CN110360012B (en) | 2024-08-09 |
Family
ID=68223602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910735962.4A Active CN110360012B (en) | 2019-08-09 | 2019-08-09 | Electronic throttle valve output shaft assembly and manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110360012B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6119652A (en) * | 1998-05-04 | 2000-09-19 | Ford Motor Company | Throttle valve assembly |
| JP2004332634A (en) * | 2003-05-08 | 2004-11-25 | Aisan Ind Co Ltd | Throttle control device |
| CN101384412A (en) * | 2006-02-21 | 2009-03-11 | 博格华纳公司 | Integrated shaft, gear and rotor |
| CN201696148U (en) * | 2010-01-19 | 2011-01-05 | 上海奥众汽车部件制造有限公司 | Electronic throttle valve body of diesel engine |
| WO2017221502A1 (en) * | 2016-06-23 | 2017-12-28 | アイシン精機 株式会社 | Airflow control valve structure |
| CN210686133U (en) * | 2019-08-09 | 2020-06-05 | 马瑞利（中国）有限公司 | Electronic throttle output shaft assembly |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005048671A (en) * | 2003-07-29 | 2005-02-24 | Mitsubishi Electric Corp | Engine intake control device |
| ATE438839T1 (en) * | 2007-06-04 | 2009-08-15 | Magneti Marelli Spa | SHAFT WITH MAGNET FOR A FLOW-CONTROLING VALVE OF AN INTERNAL COMBUSTION ENGINE |
-
2019
- 2019-08-09 CN CN201910735962.4A patent/CN110360012B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6119652A (en) * | 1998-05-04 | 2000-09-19 | Ford Motor Company | Throttle valve assembly |
| JP2004332634A (en) * | 2003-05-08 | 2004-11-25 | Aisan Ind Co Ltd | Throttle control device |
| CN101384412A (en) * | 2006-02-21 | 2009-03-11 | 博格华纳公司 | Integrated shaft, gear and rotor |
| CN201696148U (en) * | 2010-01-19 | 2011-01-05 | 上海奥众汽车部件制造有限公司 | Electronic throttle valve body of diesel engine |
| WO2017221502A1 (en) * | 2016-06-23 | 2017-12-28 | アイシン精機 株式会社 | Airflow control valve structure |
| CN210686133U (en) * | 2019-08-09 | 2020-06-05 | 马瑞利（中国）有限公司 | Electronic throttle output shaft assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110360012A (en) | 2019-10-22 |
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