CN208605280U - High-precision internal combustion engine electronic throttle - Google Patents
High-precision internal combustion engine electronic throttle Download PDFInfo
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- CN208605280U CN208605280U CN201820805193.1U CN201820805193U CN208605280U CN 208605280 U CN208605280 U CN 208605280U CN 201820805193 U CN201820805193 U CN 201820805193U CN 208605280 U CN208605280 U CN 208605280U
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Abstract
The utility model discloses a kind of high-precision internal combustion engine electronic throttles, shaft including shell and for being rotated with moving valve plate, the shaft driving mechanism for driving shaft to rotate is provided in the shell, the shaft driving mechanism include motor and can motor drive under drive shaft rotate gear set, the gear set includes the execution gear being solidly set in shaft, which is mounted on shell by two-way return mechanism.Using high-precision internal combustion engine electronic throttle provided by the utility model; structure novel; it is easily achieved; execution gear can be driven to be returned to idle position from any position by two-way return mechanism; make to execute simultaneously and two-way return mechanism offer different size of turning power is provided when gear rotates in the opposite direction; overcome the problems, such as that traditional unidirectional return torsional spring exists, motor and valve block can be protected, the reliability and stability of electronic throttle greatly improved.
Description
Technical field
The utility model belongs to internal combustion engine component technical field, and in particular to a kind of high-precision internal combustion engine electronic throttle
Door.
Background technique
Electronic throttle is the important control unit of automobile engine, and persistently variable air stream can be provided to engine
Amount, can be precisely controlled with throttle valve aperture using control system of electronic throttle valve, realizes reasonable air-fuel ratio, makes to mix
Full combustion of gas is closed, discharge is reduced, improves the dynamic property, economy and comfort of engine.
The valve block of electronic throttle usually has " idling mode " and " full off state " and " full-gear " two limit
State, present way are the opening and closing of valve block to be controlled by the rotation of shaft, and the rotational angle of shaft is driven by shaft
Dynamic mechanism controls.Execution gear in shaft driving mechanism has " idle position " and " closed positions " and " closed positions " two
A extreme position usually installs unidirectional return torsional spring on executing gear, provides for execution gear " full pass-idling " and " complete
Open-idling " returning place force.
Problem of the existing technology is: in " idling-is closed entirely " section, unidirectional return torsional spring is to execution gear load
Torque is equal to the torque loaded in " idling-standard-sized sheet " section, still, in " idling-is closed entirely " section, executes the rotational travel of gear
Much smaller than the rotational travel in " idling-standard-sized sheet " section, therefore, such design closes motor entirely in idling-" load of section
It is larger, influence the reliability and service life of electronic throttle door motor and valve block.Solving problem above becomes the task of top priority.
Utility model content
In view of this, the present invention provides a kind of high-precision internal combustion engine electronic throttles, pass through two-way return mechanism
Design, can drive executing gear and be returned to idle position, at the same make to execute gear bear when rotating in the opposite direction it is two-way
Return mechanism provides different size of turning power, can protect motor and valve block.
To achieve the above object, technical solutions of the utility model are as follows:
A kind of high-precision internal combustion engine electronic throttle, be characterized by: including shell and for rotating with moving valve plate
Shaft is provided with the shaft driving mechanism for driving shaft to rotate in the shell, it is characterised in that: the shaft driving
Mechanism include motor and can motor drive under drive shaft rotate gear set, the gear set include be solidly set on shaft
On execution gear, which is mounted on shell by two-way return mechanism；The execution gear has idle position
And turn to the closed positions and fully open position of limit point round about respectively, when execute gear under the drive of the motor by
When idle position turns to closed positions, the valve block turns to full off state, the two-way return mechanism energy from idling mode
Enough drivings execute gear and are returned to idle position from closed positions；It is rotated under the drive of the motor by idle position when executing gear
When to fully open position, the valve block turns to full-gear from idling mode, and the two-way return mechanism can drive execution tooth
Wheel is returned to idle position from fully open position.
Using the above structure, it executes between gear and shell and is connected with two-way return mechanism, which can
It drives execution gear to be returned to idle position from any position, while making to execute when gear rotates in the opposite direction and bearing Double-directional back
Position component provides different size of turning power, overcomes the problems, such as that traditional unidirectional return torsional spring exists, can protect motor and valve block,
The reliability and stability of electronic throttle greatly improved.
As preferred: the shell includes interconnected aditus laryngis and installation cavity, and the shaft is threaded through on aditus laryngis, one
The installation cavity is protruded at end, and the end of the shaft inserting end is installed with the execution gear, is being located at installation cavity bottom of chamber and is executing
Two-way return mechanism described in housing in the shaft between gear, the two-way return mechanism respectively with installation cavity and execute gear
Elastic connection.Using the above structure, the installation of two-way return mechanism is simple and reliable.
As preferred: having complete close to reverse driving portion and standard-sized sheet torsion driving portion, the installation cavity on the execution gear
It is interior that there is standard-sized sheet return support portion and full pass return support portion；The two-way return mechanism is two-way return torsional spring, the Double-directional back
For position torsional spring housing in the shaft, which has the first arm, the second arm and third arm, first arm and the
It is full pass spiral revolving body between two arms, is standard-sized sheet spiral revolving body, the full pass spiral between second arm and third arm
Revolving body and standard-sized sheet spiral turn round body by integral forming, and the full torque for closing spiral revolving body is less than the torsion of standard-sized sheet spiral revolving body
Square, first arm are supported on complete close and reverse on driving portion, on the third arm support standard-sized sheet return support portion；When execution gear
When in idle position, second arm is supported on standard-sized sheet torsion driving portion and full pass return support portion；When execute gear by
When idle position is rotated towards closed positions, first arm torsion under the full drive for closing torsion driving portion is complete to close spiral revolution
Body, second arm be supported on it is complete close on return support portion, and with standard-sized sheet torsion drive part from；When execution gear is by idling position
Set towards fully open position rotation when, second arm standard-sized sheet torsion driving portion drive under reverse standard-sized sheet spiral revolving body, and with
It is complete close return support section from.Using the above structure, the torque provided due to closing spiral revolving body and standard-sized sheet spiral revolving body entirely
Therefore difference executes the torque born when gear is rotated by idle position towards closed positions and is less than execution gear by idle position
Towards the torque that bears when fully open position rotation, so as to effectively reduce the load of throttle motor, improve throttle motor and
The reliability and service life of valve block；And, it is no longer necessary to dedicated fixing sleeve can be securely fixed two-way return torsional spring,
Simple and reliable for structure, assembly difficulty is low, high-efficient.
As preferred: the full number of active coils for closing spiral revolving body is less than the number of active coils of standard-sized sheet spiral revolving body.It adopts
With the above structure, structure is simple, easily processed into type.
As preferred: the installation cavity includes gear mounting groove and installs positioned at the motor in the gear mounting groove slot bottom
Slot and elastomeric element mounting groove, the elastomeric element mounting groove are connected to aditus laryngis, are had on the cell wall of the elastomeric element mounting groove
The standard-sized sheet return support portion, the gear mounting groove is close to having the full pass return branch on the cell wall of elastomeric element mounting groove
Support part.It using the above structure, can be respectively two-way return torsional spring by standard-sized sheet return support portion and the full return support portion that closes
Third arm and the second arm provide support, are mounted in two-way torsional spring mounting groove to reliably install two-way return torsional spring, also,
Motor mounting groove can be securely fixed motor, and installation cavity is simple in sturcture, ingenious in design, reliable and stable, easy to manufacture.
As preferred: recess is formed with third arm overlap joint slot on the cell wall of the elastomeric element mounting groove, and the standard-sized sheet returns
Position support zone is in one end of third arm overlap joint slot；There is protrusion to be formed with the second arm overlap joint on the cell wall of the gear mounting groove
Protrusion, the full return support zone that closes is in the one side wall of the second arm overlap joint protrusion.Using the above structure, it is taken by third arm
Access slot and the second arm overlap joint protrusion have implemented standard-sized sheet return support portion and have closed the design of return support portion entirely, clever structure,
Position is reasonable, and easily processed into type.
As preferred: the execution gear is towards having the first torsional spring limit base, the peace in the side disk of installation cavity
Have on the bottom of chamber behaveing affectedly and is adapted with the first torsional spring limit base and is the second torsional spring limit base, the two-way return torsional spring housing
On the first torsional spring limit base and the second torsional spring limit base.Using the above structure, two-way return can more reliably be supported to turn round
Spring.
As preferred: the first torsional spring limit base and the second torsional spring limit base are cylindrical shape, the execution gear court
There is shaft mounting base in the side disk of installation cavity, which is located in the first torsional spring limit base, and center line
It is overlapped with the center line of the first torsional spring limit base, the inserting end of the shaft passes through the fixed company in its end after the second torsional spring limit base
It connects in shaft mounting base.Using the above structure, simple and reliable for structure, it is ingenious in design, convenient for executing the reliable of gear and shaft
Connection.
As preferred: the execution gear is sector gear, which includes fluted disc portion, the outer rim in the fluted disc portion
The upper teeth portion with a mounting base and one section of arc, between the teeth portion and mounting base there is torsional spring arm to install gap, in institute
State teeth portion close to torsional spring arm installation gap one end be provided with installation limitation protrusion, the installation limitation protrusion with fluted disc portion disk it
Between crack be complete the passs torsion driving portion；The standard-sized sheet torsion driving portion is mounting base close to the side of two-way return mechanism
Limiting slot on inner wall, when execution gear is in idle position, second arm is embedded in the limiting slot, and limit is stretched out in outer end
It is abutted after the slot of position with the full pass return support portion.Using the above structure, by the design of installation limitation protrusion, first can be made
Arm is reliably limited in the crack between installation limitation protrusion and fluted disc portion disk；By the way that the design of the second clinch is limited
Position slot enables shaft driving gear when rotating from idle position to closed positions, skids off limiting slot convenient for the second arm and props up
Support is being closed on return support portion entirely, simple and reliable for structure, it is easy to accomplish.
As preferred: the limiting slot has on the side cell wall in fluted disc portion extends supporting surface, the extension supporting surface
Extend from the end of limiting slot towards torsional spring arm installation gap direction.It using the above structure, being capable of being entirely moved through in the second arm
Cheng Zhong, constantly to the second arm offer reliably support, substantially increase two-way return torsional spring with execution gear connect it is reliable
Property.
Compared with prior art, the utility model has the beneficial effects that
Using high-precision internal combustion engine electronic throttle provided by the utility model, structure novel, it is easy to accomplish, by double
Execution gear can be driven to be returned to idle position from any position to return mechanism, while turn execution gear in the opposite direction
Two-way return mechanism is born when dynamic, different size of turning power is provided, overcome the problems, such as that traditional unidirectional return torsional spring exists, it can
Motor and valve block are protected, the reliability and stability of electronic throttle greatly improved.
Detailed description of the invention
Fig. 1 is the explosive view of the utility model；
Fig. 2 is the connection relationship diagram for executing gear and being in two-way return mechanism and shell when idle position；
Fig. 3 is the connection relationship diagram for executing gear and being in two-way return mechanism and shell when closed positions；
Fig. 4 is the connection relationship diagram for executing gear and being in two-way return mechanism and shell when fully open position；
Fig. 5 is the connection relationship diagram of cover board and shell；
Fig. 6 is the connection relationship diagram of cover board, shell and motor；
Fig. 7 is the structural schematic diagram of shell；
Fig. 8 is the schematic diagram of internal structure of shell；
Fig. 9 is the structural schematic diagram of cover board；
Figure 10 is shell, valve block, shaft, two-way return mechanism and the connection relationship diagram for executing gear；
Figure 11 is two-way return mechanism and the connection relationship diagram for executing gear；
Figure 12 is the structural schematic diagram of two-way return mechanism；
Figure 13 is the structural schematic diagram for executing gear.
Specific embodiment
The utility model is described in further detail with attached drawing with reference to embodiments.
As described in Figure 1, a kind of high-precision internal combustion engine electronic throttle, including shell 300 and for band 400 turns of moving valve plate
The central axis of dynamic shaft 500, the shaft 500 is overlapped with the diameter of valve block 400, is arranged in the shell 300 useful
In the shaft driving mechanism for driving shaft 500 to rotate, the shaft driving mechanism includes motor 600 and can be in motor 600
The gear set 200 for driving lower drive shaft 500 to rotate, the gear set 200 include the active being solidly set on 600 motor shaft of motor
Gear 220, the intermediate gear 230 being installed in rotation in shell 300 and the execution gear 210 being solidly set in shaft 500,
The execution gear 210 is mounted on shell 300 by two-way return mechanism 100.
Wherein, driving gear 220 is engaged with intermediate gear 230, meanwhile, intermediate gear 230 is engaged with gear 210 is executed.
When motor 600 starts, driving gear 220 drives intermediate gear 230 to rotate, and intermediate gear 230, which drives, executes 210 turns of gear
It is dynamic, it executes gear 210 and shaft 500 is driven to rotate, finally, shaft 500 is rotated with moving valve plate 400.
Referring to Figure 1~Fig. 4, the execution gear 210 have idle position and turn to pole round about respectively
The closed positions and fully open position of point of accumulation turn to full off-position by idle position under the driving of motor 600 when executing gear 210
When setting, the valve block 400 turns to full off state from idling mode, and the two-way return mechanism 100 can drive execution gear
210 are returned to idle position from closed positions；It is turned to entirely under the driving of motor 600 by idle position when executing gear 210
When open position, the valve block 400 turns to full-gear from idling mode, and the two-way return mechanism 100 can drive execution
Gear 210 is returned to idle position from fully open position.
Generally speaking, referring to Figure 1 and Fig. 9, the shell 300 includes interconnected aditus laryngis 310 and installation cavity 320,
The shaft 500 is threaded through on aditus laryngis 310, and one end protrudes into the installation cavity 320, and the end of 500 inserting end of shaft covers admittedly
There is the execution gear 210, is being located at 320 bottom of chamber of installation cavity and is executing in the shaft 500 between gear 210 described in housing
Two-way return mechanism 100, the two-way return mechanism 100 respectively with installation cavity 320 and execute 210 elastic connection of gear.
Fig. 7 and Fig. 8 are referred to, the installation cavity 320 includes gear mounting groove 321 and is respectively positioned in the gear mounting groove
The motor mounting groove 322 and elastomeric element mounting groove 323 of 321 slot bottoms.Wherein, the motor 600 is mounted on motor mounting groove
In 322, the driving gear 220, intermediate gear 230 and execution gear 210 are located in gear mounting groove 321.The elastic portion
Part mounting groove 323 is connected to aditus laryngis 310, and standard-sized sheet return support portion is provided on the cell wall of the elastomeric element mounting groove 323
320a is provided with full pass return support portion on 321 cell wall of gear mounting groove close to elastomeric element mounting groove 323
320b.Two-way return torsional spring can be reliably supported by standard-sized sheet return support portion 320a and the full return support portion 320b that closes.
Fig. 7 and Fig. 8 are referred to, recess is formed with one section of third arm overlap joint on the cell wall of the elastomeric element mounting groove 323
Slot 323a, the standard-sized sheet return support portion 320a are located at the end of third arm overlap joint one end slot 323a.The gear mounting groove 321
Close to elastomeric element mounting groove 323 cell wall protrude above be formed with the second arm overlap joint protrusion 321b, the full pass return support portion
320b is located in the one side wall of the second arm overlap joint protrusion 321b.The gear mounting groove 321 is close to elastomeric element mounting groove 323
Cell wall, which protrudes above, is formed with retention bead 325, and the one side wall of the retention bead 325 is gear rotary spacing portion 320c, described complete
Open return support portion 320a, gear rotary spacing portion 320c and full pass return support portion 320b distribution triangular in shape.Also,
The retention bead 325 is provided with combined hole 325a on the side surface far from 321 slot bottom of gear mounting groove, in order in solar term
Cover board 700 is installed in gate housing.
Fig. 4 and Fig. 7 are referred to, when execution gear 210 turns to closed positions, executes gear 210 and retention bead 325
Gear rotary spacing portion 320c abut, closed positions are defined by the reliable design of gear rotary spacing portion 320c.
The center of 323 slot bottom of elastomeric element mounting groove is provided with columnar second torsional spring limit base 324,
100 housing of two-way return mechanism has on the second torsional spring limit base 324 and turns on the second torsional spring limit base 324
Axis via hole 330, the both ends of the shaft via hole 330 are connected to elastomeric element mounting groove 323 and aditus laryngis 310 respectively.The shaft mistake
Hole 330 includes interconnected supporting section 331 and extends out section 332, and the supporting section 331 is far from one end and the larynx for extending out section 332
Mouth 310 is connected to, and the described one end of section 332 far from supporting section 331 that extends out is connected to elastomeric element mounting groove 323, the supporting section
331 diameter is less than the diameter for extending out section 332.Wherein, supporting section 331 supports the rotation of shaft 500, extends out section 332 and plays and allows
Position is important with reduction friction, can effectively improve the service life of shaft 500.
Fig. 2~Fig. 4 and Figure 10~Figure 13 is referred to, there is complete close to reverse 211 He of driving portion on the execution gear 210
Standard-sized sheet reverses driving portion 212, and the two-way return mechanism 100 is two-way return torsional spring, and the two-way return torsional spring housing is described
In shaft 500, which has the first arm 130, the second arm 140 and third arm 150, first arm 130 and the
It is full pass spiral revolving body 110 between two arms 140, is standard-sized sheet spiral revolving body between second arm 140 and third arm 150
120, the full pass spiral revolving body 110 and standard-sized sheet spiral revolving body 120 are integrally formed and oppositely oriented, this closes spiral time entirely
The torque of swivel 110 is less than the torque of standard-sized sheet spiral revolving body 120, specifically, the full pass spiral revolving body 110 is effective
Enclose the number of active coils that number is less than standard-sized sheet spiral revolving body 120.First arm 130 is supported on complete close and reverses on driving portion 211, institute
Third arm 150 is stated to support on standard-sized sheet return support portion 320a；
When execute gear 210 be in idle position when, second arm 140 be supported on standard-sized sheet torsion driving portion 212 and entirely
It closes on return support portion 320b；When executing gear 210 and being rotated by idle position towards closed positions, first arm 130 is complete
The full pass spiral revolving body 110 of torsion under the drive of torsion driving portion 211 is closed, second arm 140 is supported on the full return that closes and supports
On portion 320b, and separated with standard-sized sheet torsion driving portion 212；When execution gear 210 is rotated by idle position towards fully open position, institute
It states the second arm 140 and reverses standard-sized sheet spiral revolving body 120 under the drive of standard-sized sheet torsion driving portion 212, and close return support with complete
Portion 320b separation.
0, Figure 11 and Figure 13 referring to Figure 1, the execution gear 210 are sector gear, which includes fluted disc portion
213, with the teeth portion 214 of a mounting base 215 and one section of arc, the teeth portion 214 and peace in the outer rim in the fluted disc portion 213
Filling between seat 215, there is torsional spring arm to install gap 216, set in the teeth portion 214 close to the one end in torsional spring arm installation gap 216
It is equipped with installation limitation protrusion 214a, it is that the full pass is turned round which, which limits the crack between protrusion 214a and 213 disk of fluted disc portion,
Turn driving portion 211.
The standard-sized sheet torsion driving portion 212 is limit of the mounting base 215 on the side inner wall of two-way return mechanism 100
Slot, when execution gear 210 is in idle position, after second arm 140 is embedded in the limiting slot, and limiting slot is stretched out in outer end
It is abutted with the full pass return support portion 320b.Also, the limiting slot has on the side cell wall in fluted disc portion 213 to be extended
Supporting surface 212a, the extension supporting surface 212a extend from the end of limiting slot towards torsional spring arm installation 216 direction of gap.
0 and Figure 13 referring to Figure 1, the execution gear 210 is towards having in the side disk of installation cavity 320 and second turns round
The first adaptable torsional spring limit base 217 of spring limit base 324, the two-way return torsional spring housing is in the first torsional spring limit base 217
On the second torsional spring limit base 324.The first torsional spring limit base 217 and the second torsional spring limit base 324 are cylindrical shape, described
Gear 210 is executed towards having shaft mounting base 218 in the side disk of installation cavity 320, which is located at first
In torsional spring limit base 217, and center line is overlapped with the center line of the first torsional spring limit base 217, and the inserting end of the shaft 500 is worn
Its end is fixedly connected in shaft mounting base 218 after crossing the second torsional spring limit base 324.
Referring to Figure 1, Fig. 5~Fig. 9, the lid of cover board 700 closes on the installation cavity 320, for the knot for improving cover board 700
Structure intensity is provided with latticed reinforcing rib 730 in the cover board 700 in the one side wall of installation cavity 320.
A retention bead 325 and two the first positioning elements 610, the limit are provided in the installation cavity 320
Protrusion 325 and two distributions triangular in shape of the first positioning element 610, it is simple and reliable.
Fig. 2~Fig. 6 is referred to, is provided with an installation positioning in the one side wall of installation cavity 320 in the cover board 700
Axis 710 and two the second positioning elements 720, the installation locating shaft 710 are embedded in retention bead close to one end of installation cavity 320
In 325, two second positioning elements 720 are engaged by clamping with corresponding first positioning element 610 respectively.Three groups of joint units
It is all made of the mode of guide-localization.
Referring to Figure 1, Fig. 6 and Fig. 9, first positioning element 610 are the electrode slice on motor 600, the motor
600 are mounted in installation cavity 320, and second positioning element 720 is conductive sheet, each conductive sheet respectively with corresponding electrode
Piece clamping.Wherein, the motor 600 is securely fixed in motor mounting groove 322.
Fig. 6 and Fig. 9 are referred to, each conductive sheet 720 all has and corresponding electricity close to the end of 320 one end of installation cavity
The adaptable bayonet 721 of pole piece 610, each electrode slice 610 are respectively embedded into corresponding card close to the end of 700 one end of cover board
In mouth 721.The bayonet 721 includes the importing opening 721a being sequentially communicated, clamping seam 721b and accommodating hole 721c, the importing
Opening 721a is located at conductive sheet close to the end of 320 one end of installation cavity, and opening width is towards close to the direction for clamping seam 721b
It is gradually reduced, the opening width of the accommodating hole 721c is first gradually increased away from the direction of clamping seam 721b gradually to be subtracted again
It is small.
Fig. 5 and Fig. 9 are referred to, it is " ten " word that the installation locating shaft 710, which has cross section close to one end of installation cavity 320,
The engaging portion 711 of shape has the combined hole 325a being adapted with engaging portion 711, the engaging portion in the retention bead 325
In 711 insertion combined hole 325a.Wherein, the retention bead 325 is arranged in the cavity wall of installation cavity 320, and with the shell
300 are integrally formed, and structural strength is high, easy to manufacture.
Finally, it should be noted that foregoing description is only the preferred embodiment of the utility model, the common skill of this field
Art personnel are under the enlightenment of the utility model, under the premise of without prejudice to the utility model aims and claim, can make
Multiple similar expressions, such transformation are each fallen within the protection scope of the utility model.
Claims (10)
1. a kind of high-precision internal combustion engine electronic throttle, the shaft including shell (300) and for being rotated with moving valve plate (400)
(500), the shaft driving mechanism for driving shaft (500) to rotate is provided in the shell (300), it is characterised in that:
The shaft driving mechanism includes motor (600) and can drive the gear of lower drive shaft (500) rotation in motor (600)
Group (200), the gear set (200) include the execution gear (210) being solidly set on shaft (500), and the execution gear (210) is logical
Two-way return mechanism (100) is crossed to be mounted on shell (300)；
Described execute gear (210) have idle position and turn to the closed positions of limit point and complete round about respectively
Open position, when execution gear (210) turns to closed positions by idle position under the driving of motor (600), the valve block
(400) full off state is turned to from idling mode, the two-way return mechanism (100), which can drive, executes gear (210) from complete
Off position is returned to idle position；Standard-sized sheet position is turned to by idle position under the driving of motor (600) when executing gear (210)
When setting, the valve block (400) turns to full-gear from idling mode, and the two-way return mechanism (100) can drive execution
Gear (210) is returned to idle position from fully open position.
2. high-precision internal combustion engine electronic throttle according to claim 1, it is characterised in that: shell (300) packet
Interconnected aditus laryngis (310) and installation cavity (320) are included, the shaft (500) is threaded through on aditus laryngis (310), and one end protrudes into
The installation cavity (320), the end of shaft (500) inserting end are installed with the execution gear (210), are being located at installation cavity
(320) two-way return mechanism (100) described in housing in the shaft (500) between bottom of chamber and execution gear (210), this is two-way
Return mechanism (100) respectively with installation cavity (320) and execute gear (210) elastic connection.
3. high-precision internal combustion engine electronic throttle according to claim 2, it is characterised in that: the execution gear
(210) there is complete close to reverse driving portion (211) and standard-sized sheet torsion driving portion (212) on, there is standard-sized sheet in the installation cavity (320)
Return support portion (320a) He Quanguan return support portion (320b)；
The two-way return mechanism (100) be two-way return torsional spring, the two-way return torsional spring housing on the shaft (500),
The two-way return torsional spring has the first arm (130), the second arm (140) and third arm (150), first arm (130) and second
It is full pass spiral revolving body (110) between arm (140), is returned between second arm (140) and third arm (150) for standard-sized sheet spiral
It turns (120), the full pass spiral revolving body (110) and standard-sized sheet spiral revolving body (120) are integrally formed, and full spiral of closing is turned round
The torque of body (110) is less than the torque of standard-sized sheet spiral revolving body (120), and first arm (130) is supported on complete close and reverses driving
In portion (211), on third arm (150) support standard-sized sheet return support portion (320a)；
When execute gear (210) be in idle position when, second arm (140) be supported on standard-sized sheet reverse driving portion (212) and
It is complete to close on return support portion (320b)；When execution gear (210) is rotated by idle position towards closed positions, first arm
(130) it is reversed under the full drive for closing torsion driving portion (211) and closes spiral revolving body (110) entirely, the second arm (140) support
It is closing on return support portion (320b), and is being separated with standard-sized sheet torsion driving portion (212) entirely；When execution gear (210) is by idling position
It sets towards when fully open position rotation, second arm (140) torsion standard-sized sheet spiral under the drive of standard-sized sheet torsion driving portion (212) is returned
It turns (120), and is separated with complete close return support portion (320b).
4. high-precision internal combustion engine electronic throttle according to claim 3, it is characterised in that: the full pass spiral revolution
The number of active coils of body (110) is less than the number of active coils of standard-sized sheet spiral revolving body (120).
5. high-precision internal combustion engine electronic throttle according to claim 3, it is characterised in that: the installation cavity (320)
Including gear mounting groove (321) and positioned at the motor mounting groove (322) and elastomeric element in gear mounting groove (321) slot bottom
Mounting groove (323), the elastomeric element mounting groove (323) are connected to aditus laryngis (310), the slot of the elastomeric element mounting groove (323)
There is the standard-sized sheet return support portion (320a), the gear mounting groove (321) is close to elastomeric element mounting groove (323) on wall
There is the full pass return support portion (320b) on cell wall.
6. high-precision internal combustion engine electronic throttle according to claim 5, it is characterised in that: the elastomeric element installation
Recess is formed with third arm overlap joint slot (323a) on the cell wall of slot (323), and the standard-sized sheet return support portion (320a) is located at third
Arm overlaps the one end of slot (323a)；
There is protrusion to be formed with the second arm to overlap raised (321b) on the cell wall of the gear mounting groove (321), it is described complete to close back
Position support portion (320b) is located at the second arm and overlaps in the one side wall of raised (321b).
7. high-precision internal combustion engine electronic throttle according to claim 3, it is characterised in that: the execution gear
(210) towards having the first torsional spring limit base (217), the bottom of chamber of the installation cavity (320) in the side disk of installation cavity (320)
It is upper to have adaptable with the first torsional spring limit base (217) and be the second torsional spring limit base (324), the two-way return torsional spring housing
On the first torsional spring limit base (217) and the second torsional spring limit base (324).
8. high-precision internal combustion engine electronic throttle according to claim 7, it is characterised in that: the first torsional spring limit
Seat (217) and the second torsional spring limit base (324) are cylindrical shape, the described execution side of gear (210) towards installation cavity (320)
There are shaft mounting base (218) in disk, which is located in the first torsional spring limit base (217), and center line
It is overlapped with the center line of the first torsional spring limit base (217), the inserting end of the shaft (500) passes through the second torsional spring limit base
(324) its end is fixedly connected on shaft mounting base (218) afterwards.
9. high-precision internal combustion engine electronic throttle according to claim 3, it is characterised in that: the execution gear
It (210) is sector gear, which includes fluted disc portion (213), has an installation in the outer rim in the fluted disc portion (213)
The teeth portion (214) of seat (215) and one section of arc, between the teeth portion (214) and mounting base (215) there is torsional spring arm to install gap
(216), one end of torsional spring arm installation gap (216) is provided with installation in the teeth portion (214) and limits raised (214a), it should
It is that driving portion (211) are reversed in the full pass that installation, which limits the crack between raised (214a) and fluted disc portion (213) disk,；
Standard-sized sheet torsion driving portion (212) is the limit of mounting base (215) on the side inner wall of two-way return mechanism (100)
Position slot, when execution gear (210) is in idle position, second arm (140) is embedded in the limiting slot, and limit is stretched out in outer end
It is abutted after the slot of position with the full pass return support portion (320b).
10. high-precision internal combustion engine electronic throttle according to claim 9, it is characterised in that: the limiting slot is close
Have on the side cell wall in fluted disc portion (213) and extend supporting surface (212a), the extension supporting surface (212a) is from the end of limiting slot
Extend towards torsional spring arm installation gap (216) direction.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820805193.1U CN208605280U (en) | 2018-05-28 | 2018-05-28 | High-precision internal combustion engine electronic throttle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820805193.1U CN208605280U (en) | 2018-05-28 | 2018-05-28 | High-precision internal combustion engine electronic throttle |
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| CN208605280U true CN208605280U (en) | 2019-03-15 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108571386A (en) * | 2018-05-28 | 2018-09-25 | 重庆渝辉机械有限公司 | High-precision electronic air throttle |
| CN111425306A (en) * | 2020-05-14 | 2020-07-17 | 重庆渝辉机械有限公司 | Combined multi-cylinder electronic throttle valve assembly |
| CN114278442A (en) * | 2021-12-27 | 2022-04-05 | 重庆渝辉机械有限公司 | Stable electronic throttle valve of diesel engine |
-
2018
- 2018-05-28 CN CN201820805193.1U patent/CN208605280U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108571386A (en) * | 2018-05-28 | 2018-09-25 | 重庆渝辉机械有限公司 | High-precision electronic air throttle |
| CN111425306A (en) * | 2020-05-14 | 2020-07-17 | 重庆渝辉机械有限公司 | Combined multi-cylinder electronic throttle valve assembly |
| CN111425306B (en) * | 2020-05-14 | 2022-07-26 | 重庆渝辉机械有限公司 | Combined multi-cylinder electronic throttle valve assembly |
| CN114278442A (en) * | 2021-12-27 | 2022-04-05 | 重庆渝辉机械有限公司 | Stable electronic throttle valve of diesel engine |
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