CN208734394U - A kind of driving device of engine valve control - Google Patents
A kind of driving device of engine valve control Download PDFInfo
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- CN208734394U CN208734394U CN201821527229.0U CN201821527229U CN208734394U CN 208734394 U CN208734394 U CN 208734394U CN 201821527229 U CN201821527229 U CN 201821527229U CN 208734394 U CN208734394 U CN 208734394U
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Abstract
The utility model provides a kind of driving device of engine valve control, belongs to field of electromechanical technology.It solves the problems such as existing driving device stability is poor.The driving device of this engine valve control, including shell and fixed plate, the electromagnetic assembly and permanent-magnet component that can be interacted are provided in shell, needle is connected on permanent-magnet component, needle passes through fixed plate, it is provided with the convex edge in a ring of protrusion on the lateral surface of shell, the pressing plate being sleeved on outside shell is fixedly connected in fixed plate, convex edge is pressed in fixed plate between fixed plate and pressing plate and by pressing plate.This driving device has many advantages, such as that stability is good, service life is high.
Description
Technical field
The utility model belongs to field of electromechanical technology, is related to a kind of driving device of engine valve control.
Background technique
Engine be it is a kind of can the machine that can be converted into mechanical energy, including internal combustion engine, motor etc. of other forms,
Internal combustion engine is usually that chemical energy is converted into mechanical energy, such as petrol engine.Petrol engine is widely used in automobile.
According to the difference of vehicle driving state, the traveling of automobile can be divided into three kinds of situations: run at high speed, drive at moderate speed with
And it runs at a low speed.Generally, high-power driving status refers to starting, acceleration, upward slope and the engine of automobile under heavy load
Run at high speed.Under the existing most of Highway Conditions in China, continues to exceed 120 kilometers/hour and run at high speed situation not
More, remaining can each belong to middle low-speed running state.
Currently, running car when in flat good road surface generally maintain in low speed speed, such as 80 kilometers/hour or less
Speed, engine is to work at part load, and the power of actual use is the 30%-50% of rated power, this is to internal combustion
The economic performance of machine has a great impact, and causes a large amount of wastes of fuel.It was verified that compared with high-power driving status,
The discharge of fuel consumption and pernicious gas of the engine under middle low-speed running state does not reduce in the prior art, especially harmful
The discharge of gas has increase trend.
In addition, the Load Regulation of vehicular petrol engine is to enter cylinder by changing throttle opening control in the prior art
Interior aeration quantity is realized.Automobile in the process of moving driver according to pavement conditions determine throttle (air throttle) aperture size
Realize engine output.Therefore, engine is run under unstable operating condition, at this moment residual waste gas quantity, cooling loss,
Air inflow and burn rate are all changing, and economy is also different therewith.
Chinese patent literature data disclose propose a kind of engine locally close cylinder management system [application number:
201410841347.9；Publication No.: 104533638A], engine is multi-cylinder, and locally closing cylinder management system includes: engine section
Valve testing agency, for detecting the opening amount signal of air throttle；Vehicle speed sensor, for obtaining the travel speed signal of vehicle；
Brake signal machine, for obtaining brake signal；Controller, according to above-mentioned travel speed signal, the opening amount signal of air throttle, braking
Signal judges whether vehicle current running state meets the part prestored and close cylinder driving conditions, closes cylinder row to meet the part prestored
Sailing condition is that condition issues closing partial-cylinder and makes control instruction of remaining cylinder within the scope of predetermined load；Driving dress
It sets, receives above-mentioned control instruction, and close partial-cylinder and make remaining cylinder within the scope of predetermined load；Predetermined load model
It encloses are as follows: 70%-90%.Driving device generally uses solenoid valve.
Chinese patent literature data, which discloses, proposes a kind of changeable air valve executive component [application number: 201120507837.7；
Notification number: 202360160U], including shell, joint component, pin assembly, permanent magnet assembly and electromagnet assembly.Shell
Interior to have chamber, joint component includes that the indoor frame body of chamber is arranged in and is arranged in connecing to plug-in unit for frame body top
Head, the bottom surface of frame body open up fluted, stretch out outside chamber to the upper end in card connections portion.Pin assembly includes positioning
Guide sleeve and positioning pin are sold, positioning pin guide sleeve is set to the lower end of shell, and connect with shell, and positioning pin is axially displaceably arranged
In in positioning pin guide sleeve, the upper end of positioning pin is located in the chamber of shell, and permanent magnet assembly is connected with the upper end of positioning pin.Electricity
Magnet assemblies include electromagnetic coil and iron core, and electromagnetic coil is wound around on the outer peripheral surface of frame body, and iron core is arranged in skeleton sheet
In the groove of body, electromagnet assembly applies a downward thrust to permanent magnet assembly when electromagnetic coil obtains electric.Have on shell
There is convex edge, bolt hole is provided on convex edge, bolt is plugged in bolt hole, shell is bolted on the cylinder cap of engine.
Heat can be generated when engine operation, the cylinder cap of engine is in the condition of high temperature when the engine is working, is starting
Low-temperature condition is in when machine does not work, for the convex edge on shell due to bolt to be installed, size is big, is easy to produce at high temperature big
Free form variable, and big stress is easy to produce due to being limited by bolt and housing body in deformation, to be easy
It is deformed, is also easy to produce fatigue failure during cold and hot switching repeatedly, lead to the poor work stability of executive component.
Summary of the invention
The purpose of this utility model is in view of the above-mentioned problems existing in the prior art, to propose a kind of engine valve control
Driving device, the technical issues of solution is how to improve the stability of driving device.
The purpose of this utility model can be realized by the following technical scheme:
A kind of driving device of engine valve control, including shell and fixed plate, being provided in the shell being capable of phase
The electromagnetic assembly and permanent-magnet component of interaction, needle is connected on the permanent-magnet component, and the needle passes through fixed plate, feature
It is, the convex edge in a ring of protrusion is provided on the lateral surface of the shell, is fixedly connected with and is sleeved in the fixed plate
Pressing plate outside shell, the convex edge are pressed in fixed plate between fixed plate and pressing plate and by pressing plate.
Driving device is installed on the engine by fixed plate, electromagnetic assembly and permanent-magnet component interaction transport needle
Dynamic, valve needle movements realize the control to engine valve.Convex edge is pressed in fixed plate by pressing plate, makes convex edge uniform force, and convex
Along in a ring, pressing plate is set on the shell, fixes shell circumferentially by pressing plate, to make shell fixation, is improved and is driven
The stability of dynamic device.Due to being seperated press fitting relationship between convex edge and pressing plate, the thermal deformation of convex edge radially it is unrestricted or
Person's limit amount is smaller, while existing press fitting relationship allows the radial dimension of convex edge is opposite to reduce between convex edge and pressing plate,
The free thermal deformation amount generated at high temperature in this way is also small, to keep the thermal stress generated small, it is not easy to deform, also not allow
It is also easy to produce fatigue failure, to improve the stability of control device, improves the reliability and service life of control device.
In the driving device that above-mentioned engine valve controls, the inside edge of the pressing plate lower end surface, which is provided with, is in
The recess of annular, the convex edge are packed into recess.
The setting of recess can position the connection of pressing plate and convex edge, facilitate the assembling of control device.And recess
Setting can suitably reduce pressing plate it is fixed when pressing plate pressing force that convex edge is generated, while in order to smoothly install, convex edge
There are gaps between lateral surface and the side wall surface of recess, these can reduce the limit that convex edge is subject in high temperature free deformation
System, reduces the generation of thermal stress, to reduce a possibility that convex edge is deformed, improves the stability of control device.
In the driving device that above-mentioned engine valve controls, it is provided with locating slot on the upper surface of the fixed plate,
There is the positioning protrusion being correspondingly arranged with locating slot, the positioning protrusion is embedded into locating slot on the lower end surface of the shell.
Locating slot and positioning protrusion keep installation site between shell and fixed plate accurate, reduce shell and consolidate for positioning
Installation deviation valve needle movements caused greatly are unsmooth between fixed board, not only make control device easy to assembly, and can be improved control dress
The stability set.
In the driving device that above-mentioned engine valve controls, the permanent-magnet component includes permanent magnet, the permanent magnet
It is set with and is fixed on the upper end of needle, fixing piece is connected on the upper surface of the needle, the upper end protrusion of the fixing piece is forever
The upper surface of magnet, and flexible washer is provided between fixing piece and permanent magnet.
Electromagnetic assembly includes conducting magnet core and coil, and washer can be made of silica gel or rubber material, and washer can be with
To be provided with elastic construction, such as spring leaf.When electromagnetic assembly no power, permanent magnet is to electromagnetic core output suction, electromagnetic core
It is pull-in on needle on electromagnetic assembly the reaction force of permanent magnet, needle is located at highest point.During actuation, due to
The upper surface of the upper end protrusion permanent magnet of fixing piece, fixing piece impinges upon on electromagnetic assembly, to prevent permanent magnet and electromagnetism group
Part bumps against, while flexible washer can buffer shock, prevents fixing piece from generating impact to permanent magnet when hitting,
To reduce a possibility that permanent magnet is damaged, the stability of control device is improved, improve the reliability of control device and is made
Use the service life.
In the driving device that above-mentioned engine valve controls, the upper end of the needle is also arranged under permanent magnet
The backing plate of side is located on the needle below backing plate and is further fixed on flexible gasket, between the permanent magnet and backing plate
With shock-reducing sleeve, the lateral surface of the outside portion protrusion permanent magnet of the shock-reducing sleeve.
Gasket and shock-reducing sleeve can be made of silica gel or rubber material, and gasket can also be to be provided with elastic construction, such as
Spring leaf.When electromagnetic assembly is powered, repulsion is generated between electromagnetic assembly and permanent magnet, permanent magnet and needle move downward, pad
Piece impinges upon in fixed plate, and flexible gasket and shock-reducing sleeve can buffer shock, prevents from hitting to permanent magnet production
Raw impact, to reduce a possibility that permanent magnet is damaged, improves the stability of control device, improves the reliable of control device
Property and service life.Backing plate has support fixed function to permanent magnet, so that permanent magnet is in nature placement status, avoids permanent magnet
Stress is damaged, and improves the stability of control device.The lateral surface of the outside portion protrusion permanent magnet of shock-reducing sleeve can also prevent
Permanent magnet and shell bump against, and improve the stability of control device.
In the driving device that above-mentioned engine valve controls, annular groove is provided on the needle, the gasket is embedding
Enter into annular groove and fixed, the lateral surface of the outside portion protrusion needle of the fixing piece upper end, the washer is sleeved on needle
Outside and it is resisted against on the outside portion of fixing piece upper end.
When fixed permanent magnet is installed, gasket is sleeved on needle and is embedded into annular groove and is fixed, then by backing plate set
On needle and backing plate is resisted against on gasket, and then shock-reducing sleeve and permanent magnet are placed sequentially on backing plate, then by washer set
It, finally will be on the fixed needle of fixing piece on needle.In this way setting keep permanent-magnet component easy for installation, while gasket, washer and
Shock-reducing sleeve has protective effect to permanent magnet during installation.
In the driving device that above-mentioned engine valve controls, mounting groove is provided on the upper surface of the permanent magnet
One, the upper end of the fixing piece and washer are located at into mounting groove one, and mounting groove two, institute are provided on the lower end surface of the backing plate
It states gasket to be located in mounting groove two, the edge of the permanent magnet lower end surface is provided with annular notch one, the backing plate upper surface
Edge be provided with annular notch two, the wall surface of the annular notch one and the wall surface of annular notch two surround mounting groove three,
The shock-reducing sleeve is mounted in mounting groove three.
Setting makes permanent-magnet component more compact structure in this way, and keeps washer, gasket and shock-reducing sleeve fixation stronger, is conducive to mention
The stability of high control device.
In the driving device that above-mentioned engine valve controls, the electromagnetic assembly includes fixed coil inside the shell
Frame is provided with mounting hole at the center of the bobbin, electromagnetic core, the outside of the bobbin is equipped in the mounting hole
It is provided with fixing groove on face, coil is provided in the fixing groove, magnetic conductive board is fixed on the upper surface of the bobbin, it is described
The outer sheath of bobbin is equipped with magnetic conductive cylinder, and the lower end of the electromagnetic core has a magnetic conduction plate washer of protrusion, and the two of the magnetic conductive cylinder
End is contacted with magnetic conductive board and magnetic conduction plate washer respectively, and the upper end of the electromagnetic core contacts and fixes with magnetic conductive board.
Electromagnetic core, magnetic conduction plate washer, magnetic conductive cylinder and magnetic conductive board are capable of forming complete magnetic conduction magnetic circuit, guarantee electromagnetic assembly work
The stability of work, to guarantee the stability of control device.
In the driving device that above-mentioned engine valve controls, the shell is made of non-magnet material.
Non-magnet material includes the nonferrous materials such as austenitic stainless steel and copper, aluminium.Shell uses non-magnet material
It is made, the magnetic field that electromagnetic assembly and permanent-magnet component can be made to generate is shielded, while also shielding external magnetic field to electromagnetism in shell
The influence of component and permanent-magnet component improves the stability and reliability of control device.And the installation of multiple driving devices it is close when
Also it is able to use, will not interfere with each other.
In the driving device that above-mentioned engine valve controls, the convex edge is in continuous annular or discontinuous ring
Shape.Continuous annular makes the good fixing effect of shell, improves the stability of control device.Discontinuous annular can reduce high temperature
When the thermal stress that generates, reduce the generation of deformation, improve the stability of control device.
In the driving device that above-mentioned engine valve controls, needle is provided at the center of the positioning groove bottom
Hole is fixed with guide sleeve in the needle hole, and the needle is threaded through in guide sleeve.Guide sleeve has guiding role, makes needle
It runs that the smooth and direction of motion is unanimously good, improves the stability of control device.
In the driving device that above-mentioned engine valve controls, it is provided on the upper surface of the fixed plate around shell
Several threaded holes are provided with connecting hole corresponding with threaded hole on the pressing plate, are provided in the connecting hole and threaded hole connects
The fastener connect.Pressing plate is fixedly connected in fixed plate by fastener, keeps pressing plate easy for installation.
Compared with prior art, the utility model has the advantage that
Pressing plate is set, convex edge is pressed in fixed plate to fix shell by pressing plate, makes shell fixing-stable, simultaneously
The deformation that convex edge produces at high temperature is reduced, the stability and service life of control device are improved.Recess is set to pressing plate and convex edge
It is positioned, locating slot is set and positioning protrusion positions shell and fixed plate, facilitates installation and improves control device
Stability.The upper surface of fixing piece protrusion permanent magnet, setting washer, gasket and shock-reducing sleeve, the influence for avoiding permanent magnet from being impacted,
A possibility that permanent magnet is damaged is reduced, the stability of control device is improved.Mounting groove one, mounting groove two and mounting groove are set
Three make the compact-sized stabilization of permanent-magnet component.Electromagnetic core, magnetic conduction baffle, magnetic conductive cylinder and magnetic conductive board are set on bobbin, make electricity
Magnetic assembly the operation is stable.Shell is made of non-magnet material, avoids interfering, and control device is made to use stabilization.
Detailed description of the invention
Fig. 1 is schematic cross-sectional view of this driving device when being not powered on；
Fig. 2 is schematic cross-sectional view of this driving device when being powered；
Fig. 3 is the schematic cross-sectional view of permanent-magnet component in this driving device.
In figure, 1, shell；1a, convex edge；1b, positioning protrusion；2, fixed plate；2a, locating slot；2b, needle hole；2c, screw thread
Hole；3, needle；3a, annular groove；4, pressing plate；4a, recess；4b, connecting hole；5, permanent magnet；5a, mounting groove one；5b, annular notch
One；5c, mounting groove three；6, fixing piece；7, washer；8, backing plate；8a, mounting groove two；8b, annular notch two；9, gasket；10, subtract
Vibration set；11, bobbin；11a, mounting hole；11b, fixing groove；12, electromagnetic core；12a, magnetic conduction plate washer；13, coil；14, magnetic conduction
Plate；15, magnetic conductive cylinder；16, guide sleeve；17, fastener.
Specific embodiment
It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these examples.
Embodiment one
As shown in Figure 1-Figure 3, the driving device of a kind of engine valve control, including shell 1 and fixed plate 2, in shell 1
It is provided with the electromagnetic assembly and permanent-magnet component that can be interacted, is connected with needle 3 on permanent-magnet component.Electromagnetic assembly and permanent magnetism group
There is activity space between part.Electromagnetic assembly is fixed in shell 1, and permanent-magnet component can move up and down in shell 1.
It is provided with locating slot 2a on the upper surface of fixed plate 2, needle hole 2b, valve are provided at the center of the bottom surface locating slot 2a
Guide sleeve 16 is fixed in pin hole 2b, needle 3 is threaded through in guide sleeve 16 and can slide up and down in guide sleeve 16, needle 3
Lower end can stretch out guide sleeve 16.Guide sleeve 16 is the thin-wall bush made of non-magnet material, and inner surface has high resistance to
Grit.Around needle hole, 2b is provided with threaded hole 2c on the upper surface of fixed plate 2, threaded hole 2c have it is several and evenly distributed, it is excellent
Selection of land, threaded hole 2c are set as two, three or four.Fixed plate 2 is the metal plate made of non-magnet material.
Shell 1 is made of non-magnet material, cylindrical.The annular in shape of protrusion is provided on the lower end surface of shell 1
And positioning protrusion 1b corresponding with locating slot 2a, positioning protrusion 1b are embedded into locating slot 2a, the lower end surface of shell 1 is resisted against solid
On the upper surface of fixed board 2.The convex edge 1a in a ring of protrusion is provided on the lateral surface of 1 lower end of shell, convex edge 1a can be in company
Continuous annular or discontinuous annular.The lower end surface of convex edge 1a is resisted against on the upper surface of fixed plate 2.
Pressing plate 4 is fixedly connected on the upper surface of fixed plate 2, pressing plate 4 is annular in shape and is sleeved on outside shell 1,4 lower end of pressing plate
The inside edge in face is provided with recess 4a in a ring, and convex edge 1a is packed into recess 4a, and convex edge 1a is located at fixed plate 2 and pressing plate
It is pressed in fixed plate 2 between 4 and by pressing plate 4.Recess 4a can also be arranged on the upper surface of fixed plate 2, convex edge 1a is packed into
It is pressed on the bottom surface of recess 4a in recess 4a and by pressing plate 4.For the ease of installation, the lateral surface of convex edge 1a and the side wall of recess 4a
There is gap between face.It is provided with connecting hole 4b corresponding with threaded hole 2c on pressing plate 4, is provided in connecting hole 4b and threaded hole
Pressing plate 4 is fixedly connected in fixed plate 2 by the fastener 17 of 2c connection by fastener 17.Fastener 17 can for bolt or
Person's screw.For the ease of installation, there is annular space between the lateral surface and connecting hole 4b of fastener 17.
Electromagnetic assembly includes the bobbin 11 being fixed in shell 1, is provided with mounting hole 11a at the center of bobbin 11,
Electromagnetic core 12 is installed in mounting hole 11a, fixing groove 11b, setting in fixing groove 11b are provided on the lateral surface of bobbin 11
There is coil 13.It sets that there are two the stems protruded on the upper surface of bobbin 11, the end of a thread of coil 13, line is equipped in stem
Head is connected on coil connectors after being pierced by bobbin 11.Magnetic conductive board 14 in the form of annular discs is fixed on the upper surface of bobbin 11,
Two stems are upward through magnetic conductive board 14.The outer sheath of bobbin 11 is equipped with cylindrical magnetic conductive cylinder 15, electromagnetic core 12
Lower end integrally formed with protrusion magnetic conduction plate washer 12a in the form of annular discs, the both ends of magnetic conductive cylinder 15 respectively with magnetic conductive board 14 and lead
Magnetic plate washer 12a contact, the upper end of electromagnetic core 12 contact and fix with magnetic conductive board 14.Bobbin 11 is made of non-magnet material,
Electromagnetic core 12, magnetic conductive cylinder 15 and magnetic conductive board 14 are made of permeability magnetic material.
Permanent-magnet component is fixed on the upper end of needle 3, and permanent-magnet component includes the permanent magnet 5 made of permanent-magnet material and led by non-
Backing plate 8 made of magnetic material.Permanent magnet 5 is cylindrical body, and permanent magnet 5 is provided with centre bore and is sleeved on the upper end of needle 3, permanent magnetism
One 5a of mounting groove is provided on the upper surface of body 5, the edge of 5 lower end surface of permanent magnet is provided with one 5b of annular notch.8 sets of backing plate
Lower section on needle 3 and positioned at permanent magnet 5, the edge of 8 upper surface of backing plate are provided with two 8b of annular notch, backing plate 8
Two 8a of mounting groove is provided on lower end surface.The wall surface of two 8b of wall surface and annular notch of one 5b of annular notch surrounds mounting groove three
5c.Fixing piece 6 is threaded on the upper surface of needle 3, fixing piece 6 is screw or bolt, and the end face on head is plane.
Flexible washer 7 is provided between fixing piece 6 and permanent magnet 5, the upper end of fixing piece 6 and washer 7, which are located at, arrives mounting groove one
In 5a, and the upper surface of some protrusion permanent magnet 5 of the upper end of fixing piece 6.Protrude needle 3 in the outside portion of 6 upper end of fixing piece
Lateral surface, washer 7 is sleeved on outside needle 3, and the top and bottom of washer 7 are born against on the outside portion of 6 upper end of fixing piece
On the bottom surface of one 5a of mounting groove.Washer 7 can be flexible for the O-ring made of silica gel perhaps rubber material or setting
Spring leaf is such as arranged in structure.Lower section on needle 3 positioned at backing plate 8 is provided with annular groove 3a, and flexible gasket 9 is sleeved on
On needle 3, the inside portion of gasket 9 is embedded into annular groove 3a and fixed.Gasket 9 is in the form of annular discs, can be by silica gel or rubber
Material is made, or is provided with elastic construction, and spring leaf is such as arranged.There is shock-reducing sleeve between the lower end surface and backing plate 8 of permanent magnet 5
10, shock-reducing sleeve 10 in a ring, is made of silica gel or rubber material, has elasticity.Shock-reducing sleeve 10 is mounted in three 5c of mounting groove,
The lateral surface of the outside portion protrusion permanent magnet 5 of shock-reducing sleeve 10.
Non-magnet material includes austenitic stainless steel, and the nonferrous materials such as copper, aluminium and conventional ceramic, plastics etc. are non-
Metal material.Permeability magnetic material includes the good material of the magnetic conductivity such as iron, cobalt, nickel.Permanent-magnet material includes Al-Ni-Co series permanent-magnet alloy, iron
Chromium cobalt system permanent-magnet alloy, permanent-magnet ferrite, rare earth permanent-magnetic material and composite permanent-magnetic material etc..
Engine includes cylinder body and cylinder cap, and camshaft and valve is arranged on cylinder cap, and cam, control dress are arranged on camshaft
Set the mobile opening and closing to control valve on camshaft of driving cam.Fixed plate 2 is fixedly connected on cylinder cap or cylinder cap
A part.When coil 13 is not powered on, permanent magnet 5 is to 12 output suction of electromagnetic core, anti-work of the electromagnetic core 12 to permanent magnet 5
Firmly it is pull-in on permanent-magnet component on electromagnetic assembly, needle 3 is located at highest point.During actuation, due to fixing piece 6
The upper surface of permanent magnet 5 is protruded in upper end, is impinged upon on magnetic conduction baffle by fixing piece 6, can prevent permanent magnet 5 and magnetic conduction baffle phase
It hits, while washer 7 can buffer shock, prevents fixing piece 6 from generating impact to permanent magnet 5 when hitting, to reduce forever
A possibility that magnet 5 is damaged improves the stability of control device, improves control device reliability and service life.Coil
When 13 energization, repulsion is generated between electromagnetic assembly and permanent magnet 5, permanent-magnet component and needle 3 move downward, and gasket 9 impinges upon solid
On fixed board 2, gasket 9, shock-reducing sleeve 10 and washer 7 can buffer shock, prevent from hitting generating permanent magnet 5 and impact, from
And a possibility that permanent magnet 5 is damaged is reduced, the stability of control device is improved, the reliability and use of control device are improved
Service life.Convex edge 1a is pressed in fixed plate 2 by pressing plate 4, makes convex edge 1a uniform force, and convex edge 1a and pressing plate 4 are annular in shape, is made outer
Shell 1 is circumferentially fixed by pressing plate 4, to make 1 fixation of shell, improves the stability of driving device.Due to convex edge 1a with
It is seperated press fitting relationship between pressing plate 4, the thermal deformation of convex edge 1a radially is unrestricted or limit amount is smaller, while can be with
Convex edge 1a is accordingly reduced in radial size, the free form variable generated at high temperature in this way is also small, to make the heat generated
Stress is small, it is not easy to deform, also not allow to be also easy to produce fatigue failure, to improve the stability of control device, improve control
The reliability and service life of device.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Claims (10)
1. a kind of driving device of engine valve control, including shell (1) and fixed plate (2), the shell (1) is interior to be provided with
The electromagnetic assembly and permanent-magnet component that can be interacted are connected with needle (3) on the permanent-magnet component, and the needle (3) passes through
Fixed plate (2), which is characterized in that the convex edge (1a) in a ring of protrusion is provided on the lateral surface of the shell (1), it is described solid
It is fixedly connected on fixed board (2) and is sleeved on the pressing plate (4) of shell (1) outside, the convex edge (1a) is located at fixed plate (2) and pressing plate
(4) it is pressed on fixed plate (2) between and by pressing plate (4).
2. the driving device of engine valve control according to claim 1, which is characterized in that pressing plate (4) lower end
The inside edge in face is provided with recess (4a) in a ring, and the convex edge (1a) is packed into recess (4a).
3. the driving device of engine valve control according to claim 1, which is characterized in that the fixed plate (2)
It is provided on upper surface locating slot (2a), there is the positioning being correspondingly arranged with locating slot (2a) on the lower end surface of the shell (1)
Raised (1b), the positioning protrusion (1b) are embedded into locating slot (2a).
4. the driving device of engine valve control according to claim 1 to 3, which is characterized in that the permanent magnetism group
Part includes permanent magnet (5), permanent magnet (5) suit and the upper end for being fixed on needle (3), on the upper surface of the needle (3)
It is connected with fixing piece (6), the upper surface of upper end protrusion permanent magnet (5) of the fixing piece (6), and fixing piece (6) and permanent magnet
(5) flexible washer (7) are provided between.
5. the driving device of engine valve according to claim 4 control, which is characterized in that the needle (3) it is upper
End is also arranged with the backing plate (8) below permanent magnet (5), is located at below backing plate (8) on the needle (3) and is further fixed on tool
Flexible gasket (9) has shock-reducing sleeve (10) between the permanent magnet (5) and backing plate (8), the outside of the shock-reducing sleeve (10)
Protrude the lateral surface of permanent magnet (5) in portion.
6. the driving device of engine valve control according to claim 5, which is characterized in that set on the needle (3)
It is equipped with annular groove (3a), the gasket (9) is embedded into annular groove (3a) and fixed, the outside portion of fixing piece (6) upper end
The lateral surface of needle (3) is protruded, the washer (7) is sleeved on needle (3) outside and is resisted against the outside portion of fixing piece (6) upper end
On.
7. the driving device of engine valve control according to claim 5, which is characterized in that the permanent magnet (5)
It being provided on upper surface mounting groove one (5a), the upper end of the fixing piece (6) and washer (7) are located in mounting groove one (5a),
Be provided with mounting groove two (8a) on the lower end surface of the backing plate (8), the gasket (9) is located in mounting groove two (8a), it is described forever
The edge of magnet (5) lower end surface is provided with annular notch one (5b), and the edge of backing plate (8) upper surface is provided with annular
Recess two (8b), the wall surface of the annular notch one (5b) and the wall surface of annular notch two (8b) surround mounting groove three (5c), institute
Shock-reducing sleeve (10) is stated to be mounted in mounting groove three (5c).
8. the driving device of engine valve control according to claim 1 to 3, which is characterized in that the electromagnetism group
Part includes the bobbin (11) being fixed in shell (1), is provided with mounting hole (11a), institute at the center of the bobbin (11)
It states and is equipped with electromagnetic core (12) in mounting hole (11a), be provided with fixing groove (11b) on the lateral surface of the bobbin (11),
It is provided with coil (13) in the fixing groove (11b), is fixed with magnetic conductive board (14) on the upper surface of the bobbin (11), it is described
The outer sheath of bobbin (11) is equipped with magnetic conductive cylinder (15), and the lower end of the electromagnetic core (12) has the magnetic conduction plate washer of protrusion
The both ends of (12a), the magnetic conductive cylinder (15) are contacted with magnetic conductive board (14) and magnetic conduction plate washer (12a) respectively, the electromagnetic core
(12) upper end contacts and fixes with magnetic conductive board (14).
9. the driving device of engine valve control according to claim 1 to 3, which is characterized in that the shell
(1) it is made of non-magnet material.
10. the driving device of engine valve control according to claim 1 to 3, which is characterized in that the fixation
It is provided with several threaded holes (2c), is provided on the pressing plate (4) and threaded hole around shell (1) on the upper surface of plate (2)
(2c) corresponding connecting hole (4b), the connecting hole (4b) is interior to be provided with the fastener (17) connecting with threaded hole (2c).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821527229.0U CN208734394U (en) | 2018-09-18 | 2018-09-18 | A kind of driving device of engine valve control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN109026254A (en) * | 2018-09-18 | 2018-12-18 | 浙江正奥汽配有限公司 | A kind of driving device of engine valve control |
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