CN207111249U

CN207111249U - Air throttle

Info

Publication number: CN207111249U
Application number: CN201720744753.2U
Authority: CN
Inventors: 朱正涛; 程冬
Original assignee: Continental Automotive Wuhu Co Ltd
Current assignee: Vitesco Automotive Wuhu Co Ltd
Priority date: 2017-06-23
Filing date: 2017-06-23
Publication date: 2018-03-16
Anticipated expiration: 2027-06-23

Abstract

Air throttle is the utility model is related to, it includes：Housing, it has gas channel；Motor in housing, the motor one end are connected with output gear；The torque transmitter engaged with the output gear；The throttle plate pin being fixedly connected with the torque transmitter, the throttle plate pin pass through gas channel, and are supported by inserting the first mounting hole on housing and the second mounting hole；And on the throttle plate pin, butterfly valve in gas channel；The butterfly valve is installed on throttle plate pin by two screws, and described two screws are of different sizes.Because two screws are of different sizes, after expanding with heat and contract with cold, butterfly valve can return to initial position, will not shift, and the risk scraped is produced so as to also avoid the inwall of butterfly valve and gas channel.

Description

Air throttle

Technical field

Auto parts and components product is the utility model is related to, specifically, is related to a kind of section being used in automobile power assembly Valve.

Background technology

Throttle valve device is usually provided with internal combustion engine, its be arranged in the upstream of inlet manifold and with admission line phase Even, the air mass flow of inlet manifold is supplied for controlling, so as to control the air mass flow into cylinder.

In the market general air throttle include solar term gate housing, the motor positioned at the air throttle enclosure interior, with The torque transmitter of output end engagement of the motor, the throttle plate pin being fixedly connected with the torque transmitter, installation Butterfly valve on the throttle plate pin, inside gas channel, and coordinate the lid installed with solar term gate housing.Wherein butterfly Valve is installed on throttle plate pin by two screws, can after process is expanded with heat and contract with cold because described two screw sizes are identical Disk can be caused to shift, so as to there is the risk that the inwall of disk and housing air-flow passage produces clamping stagnation and scraped.

The content of the invention

The purpose of this utility model is to provide a kind of air throttle, and its processing cost is low.

A kind of air throttle provided by the utility model, including：Housing, it has gas channel；Motor in housing, The motor one end is connected with output gear；The torque transmitter engaged with the output gear；With the torque transmitter The throttle plate pin being fixedly connected, the throttle plate pin pass through gas channel, and by inserting the first mounting hole and second on housing Mounting hole is supported；And on the throttle plate pin, butterfly valve in gas channel；The butterfly valve passes through two Screw is installed on throttle plate pin, and described two screws are of different sizes.

It is preferred that described two screws are backing-up screw.

It is preferred that when the butterfly valve rotation direction difference of different solar terms door, the position of two screws of size is opposite.

Compared with prior art, two screws are of different sizes, then the screw-down torque of two screws is also different, expanding with heat and contract with cold During, the deformation of butterfly valve is all centered on big screw, and so after expanding with heat and contract with cold, butterfly valve can return to initial bit Put, will not shift, the risk scraped is produced so as to also avoid the inwall of butterfly valve and gas channel.

Brief description of the drawings

The accompanying drawing for forming the part of the application is used for providing further understanding to of the present utility model, of the present utility model Schematic description and description is used to explain the utility model, does not form to improper restriction of the present utility model.In accompanying drawing In：

Fig. 1 is the diagrammatic cross-section after air throttle assembling described in the utility model；

Fig. 2 is the schematic perspective view that butterfly valve is installed on throttle plate pin by screw.

Embodiment

Fig. 1 to Fig. 2 is referred to, the air throttle includes：Housing 1, it has gas channel 11；Motor in housing 1 2, the one end of motor 2 is connected with output gear 21；The torque transmitter 3 engaged with the output gear 21；With the moment of torsion The throttle plate pin 4 that transfer device 3 is fixedly connected, the throttle plate pin 4 pass through gas channel 11, and by inserting leaning on housing 1 First mounting hole 6 of nearly torque transmitter and the second mounting hole 7 of its opposite side are supported, more specifically, described first Needle bearing 60 is installed in mounting hole 6, bushing 70 is installed in second mounting hole 7, the both ends of the throttle plate pin 4 are inserted respectively Enter into the needle bearing 60 and bushing 70, the needle bearing 60 and bushing 70 play a supportive role to the throttle plate pin 4； Butterfly valve 5 on the throttle plate pin 4, positioned at gas channel 11；The lid 8 coordinated with housing 1.The butterfly valve 5 is logical Cross two screws 9 to be installed on throttle plate pin 4, and described two screws 9 are of different sizes.Because two screws 9 are of different sizes, then The screw-down torque of two screws 9 is also different, during expanding with heat and contract with cold, the deformation of butterfly valve 5 be all centered on big screw, this For sample after expanding with heat and contract with cold, butterfly valve 5 can return to initial position, will not shift, and lead to so as to also avoid butterfly valve 5 with air-flow The inwall in road 11 produces the risk scraped.Described two screws 9 are backing-up screw, reduce staking process.Different solar term On door if during 5 rotation direction difference of butterfly valve, if then the position of two screws 9 of size is on the contrary, i.e. butterfly valve 5 is suitable on an air throttle When hour hands rotate, big screw is located at one end away from torque transmitter 3 on throttle plate pin 4, if butterfly valve 5 on another air throttle During to rotate counterclockwise, then big screw is located at close to one end of torque transmitter 3 on throttle plate pin 4, so for different Air throttle, mixed production can be realized when installing dish valve 5.

Referring to Fig. 1, in the present embodiment, torque transmitter 3 is secondary transmission, it includes intermeshing first tooth Wheel 31 and second gear 32, the first gear 31 are installed on wheel shaft and are meshed with the output gear 21 of motor 2, and described second Gear 32 is fixedly connected with throttle plate pin 4.The air throttle also includes the first spring 321 and second being installed in second gear 32 Spring 322, the first spring 321 be with certain pretightning force be arranged on the second gear 32 on, the second spring 322 be with Certain pretightning force is arranged on the housing 1 and second gear 32, the first spring 321 and the collective effect of second spring 322 The initial position of throttle butterfly 5 is determined, second spring 322 is return spring, when running into electric current disconnection, in the work of pretightning force Under, the second spring 322 can pull second gear 32 to rotate, so as to drive the throttle plate pin to rotate and by the dish Valve 5 is withdrawn into initial position.In other embodiments, the torque transmitter 3 can also be primary transmission.

The air throttle also includes being used for electric interfaces (not shown) electric on the motor 2, is installed on moment of torsion transmission The magnet (not indicating) of the side of device 3, the position sensor (not shown) being installed in lid 8, the position sensor pass through The change of magnetic field of magnets perceives the anglec of rotation of the dish valve 5, and feeds back to electronic control unit.

Although the utility model is disclosed as above with preferred embodiment, the utility model is not limited to this.Any Art personnel, do not departing from the various changes made in spirit and scope of the present utility model and changing, this all should be included In the protection domain of utility model, therefore the scope of protection of the utility model should be defined by claim limited range.

Claims

1. a kind of air throttle, including：

Housing, it has gas channel；

Motor in housing, the motor one end are connected with output gear；

The torque transmitter engaged with the output gear；

The throttle plate pin being fixedly connected with the torque transmitter, the throttle plate pin pass through gas channel, and by inserting shell The first mounting hole and the second mounting hole on body are supported；And

Butterfly valve on the throttle plate pin, in gas channel；

The butterfly valve is installed on throttle plate pin by two screws, and described two screws are of different sizes.

2. air throttle according to claim 1, it is characterised in that described two screws are backing-up screw.

3. air throttle according to claim 2, it is characterised in that when the butterfly valve rotation direction difference of different solar terms door, The position of two screws of size is opposite.