CN205039679U - Diaphragm heat dissipation formula electromagnetism straight line executor - Google Patents
Diaphragm heat dissipation formula electromagnetism straight line executor Download PDFInfo
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- CN205039679U CN205039679U CN201520792572.8U CN201520792572U CN205039679U CN 205039679 U CN205039679 U CN 205039679U CN 201520792572 U CN201520792572 U CN 201520792572U CN 205039679 U CN205039679 U CN 205039679U
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- diaphragm
- coil rack
- linear actuator
- electromagnetic linear
- heat dissipation
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Abstract
The utility model discloses a diaphragm heat dissipation formula electromagnetism straight line executor, including solenoid, coil skeleton, the permanent magnet, the diaphragm, outer yoke and inner magnet yoke, the permanent magnet distributes between the outer yoke and inner magnet yoke of tube -shape, there is the air gap between permanent magnet and the inner magnet yoke and forms stable magnetic field in the air gap, the solenoid and the coil skeleton that can follow the axis direction up -and -down motion are arranged in the air gap, the top edge at outer yoke is fixed to the diaphragm, a support is processed into for the coil skeleton upper portion of tube -shape in the lower part, the fastener passes through on screw hole in the middle of the diaphragm fixes the support on coil skeleton to the diaphragm, can drive the diaphragm during coil skeleton motion does the up -and -down motion together. The utility model relates to a straight line driven execute component use, can realize the linear motion of high speed, high accuracy, and the use of diaphragm can reduce the temperature of electromagnetism straight line executor to a certain extent, can effectively improve its life.
Description
Technical field
The utility model relates to a kind of electromagnetic linear actuator, particularly a kind of diaphragm heat dissipation type electromagnetic linear actuator.
Background technology
Electromagnetic linear actuator as a kind of be directly the device of the mechanical energy of rectilinear motion form electric energy conversion, due to its have that structure is simple, strong modularity, noise are little, wearing and tearing less, maintaining is convenient etc., and advantage is more and more applied to the correlative technology field such as industrial automation, intelligent operation and industry.Opening up of the range of application controlled along with rectilinear motion is wide, and linear actuator obtains development energetically, and the linear actuator in different driving mode, different size and different application field occurs in succession, and achieves some gratifying effects.The precision that people control rectilinear motion again and dynamic response performance propose more and more higher requirement, apply more and more widely because electromagnetic linear actuator obtains at the outstanding behaviours electromagnetic linear actuator of high accuracy and high dynamic response performance.
At present, electromagnetic linear actuator used in the prior art is usually by inner yoke, outer yoke, end cap, permanent magnet, solenoid and coil rack are formed, electromagnetic linear actuator is often applied in the occasion high with direction of motion inversion frequency that run up, size of current in solenoid and the sense of current are depended in electromagnetic linear actuator motions speed and direction, namely in solenoid, electric current is large, sense of current conversion is frequent, solenoid temperature is easily caused to raise, the high-speed motion that coil rack does cutting magnetic induction line in air gap also can produce amount of heat, thus cause electromagnetic linear actuator to generate heat, the useful life of electromagnetic linear actuator and operating accuracy are declined, thus electromagnetic linear actuator also needs further improvement.
Utility model content
The purpose of this utility model is to provide that a kind of structure is simple, easy and simple to handle, easy to maintenance, manufacturing cost is lower, few high accuracy with good temperature control features of wearing and tearing and the good electromagnetic linear actuator of dynamic response performance, and can improve useful life.
The technical solution realizing the utility model object is: a kind of diaphragm heat dissipation type electromagnetic linear actuator, comprises solenoid, coil rack, permanent magnet, diaphragm, outer yoke and inner yoke; Described permanent magnet is distributed between the outer yoke of tubular and inner yoke, there is air gap between permanent magnet and inner yoke and in air gap, form stable magnetic field, the solenoid that can move up and down in the axial direction and coil rack are arranged in air gap, diaphragm is fixed on the top edge of outer yoke, bottom is that a support is processed on the coil rack top of tubular, and the support on coil rack and diaphragm utilize securing member to be interconnected.
Described diaphragm comprises the main body of the middle part projection that middle one deck rubber is made, the circular first guide assembly of two panels of stainless steel material and securing member, body of rubber is fitted between the first guide assembly of two panels and together moves with the intermediate ledge position of main body, a screw hole is left in the centre of diaphragm, securing member is fastened on diaphragm on the support of coil rack by screw hole, and the edge of diaphragm is fixed on outer yoke top.
Owing to have employed technique scheme, the utility model compared with prior art, its remarkable advantage is: 1) can improve the temperature characterisitic of electromagnetic linear actuator to a certain extent, effectively improve the useful life of electromagnetic linear actuator, and provide very large guarantee to the precision of electromagnetic linear actuator, electromagnetic linear actuator can be made to be more suitable for using in high speed, high-precision rectilinear motion, and change less to former electromagnetic linear actuator, be easy to processing; 2) diaphragm adopted in utility model can use existing diaphragm type in market, and Selective type is varied, and material category also has multiple choices, does not need custom-made to produce and just can reach instructions for use; 3) coil rack drawing diaphragm only needs to extend a part and is rendered as support shape, there is the advantages such as structure is simple, easy to process, increase cost is few, coil rack and diaphragm utilize screw to be connected can to draw diaphragm and move up and down, and the air vibration causing diaphragm upper and lower, accelerate air circulation and impel scattering and disappearing of heat.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of diaphragm heat dissipation type electromagnetic linear actuator of the present utility model.
Fig. 2 is the vertical view of diaphragm in a kind of diaphragm heat dissipation type electromagnetic linear actuator of the present utility model.
Fig. 3 is the vertical view of a kind of diaphragm heat dissipation type electromagnetic linear actuator coil skeleton of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Composition graphs 1, a kind of diaphragm heat dissipation type electromagnetic linear actuator of the present utility model, comprises solenoid 1, coil rack 2, permanent magnet 3, diaphragm 4, outer yoke 5 and inner yoke 6; Described permanent magnet 3 is distributed between the outer yoke 5 of tubular and inner yoke 6, there is air gap between permanent magnet 3 and inner yoke 6 and in air gap, form stable magnetic field, the solenoid 1 that can move up and down in the axial direction and coil rack 2 are arranged in air gap, diaphragm 4 is fixed on the top edge of outer yoke 5, bottom is that a support is processed on coil rack 2 top of tubular, and support and the diaphragm 4 of coil rack 2 utilize securing member to be interconnected.
Described diaphragm 4 comprises the main body of the middle part projection that middle one deck rubber is made, the circular first guide assembly of two panels of stainless steel material and securing member, body of rubber is fitted between the first guide assembly of two panels and together moves with the intermediate ledge position of main body, a screw hole is left in the centre of diaphragm 4, securing member is fastened on diaphragm 4 on the support of coil rack 2 by screw hole, and the edge of diaphragm 4 is fixed on outer yoke 5 top.
Electromagnetic linear actuator of the present utility model can adopt cylinder type, namely solenoid 1, coil rack 2, permanent magnet 3, outer yoke 5, inner yoke 6 are all arranged according to the cylindrical shape of coaxial inner conductor, and diaphragm 4 periphery is fixed in outer yoke 5 and with the overall structure of electromagnetic linear actuator and keeps coaxial.
In solenoid 1 and the radial air gap of coil rack 2 between outer yoke 5 and inner yoke 6, and and permanent magnet 3, leave certain air gap between inner yoke 6 and in air gap, form stable magnetic field, solenoid 1 and coil rack 2 can be made in air gap to do linear reciprocating motion along axis.In solenoid 1, pass into the electromagnetic force that direction and the certain direct current of size can produce a size, direction size of current, directional correlation therewith, electromagnetic force can promote solenoid 1 and coil rack 2 moves.The high-speed motion that solenoid 1 and coil rack 2 do cutting magnetic induction line in air gap can produce a large amount of heats, electric current flows through solenoid 1 also can produce a large amount of heats, a large amount of heats can make the temperature of electromagnetic linear actuator raise, thus affect the operating accuracy of electromagnetic linear actuator and the performance of permanent magnet 3, and then affect the useful life of electromagnetic linear actuator.Diaphragm 4 is fixed on the top of outer yoke 5, the diameter of diaphragm 4 is equal with the external diameter of outer yoke 5,8 equally distributed screw holes are left in the submarginal part of diaphragm 4, outer yoke 5 top appropriate section also has screw hole, utilize 8 screws diaphragm 4 to be fastened on the top of outer yoke 5, certain space should be left in order to avoid produce interference to the distortion of diaphragm in the top of diaphragm.
Accompanying drawing 2 is vertical views of diaphragm 4 in diaphragm heat dissipation type electromagnetic linear actuator of the present utility model, and the main body of diaphragm 4 is that whippy elastomeric material is made, an axial force can be applied to diaphragm 4 center and make diaphragm 4 produce distortion.The mid portion of diaphragm 4 protrudes to a side, the first guide assembly of circle that the two sides of projection is respectively fitted with a stainless steel material can make the mid portion uniform force of diaphragm 4, not easily cause its part be connected with connector that pernicious distortion occurs, first guide assembly can with body of rubber together movement under force, diaphragm 4 center is left an aperture and is used for using securing member to be connected with the support on coil rack 2.
Accompanying drawing 3 is vertical views of electromagnetic linear actuator coil skeleton 2 of the present utility model, as can be seen from the figure the main body of coil rack 2 be one columnar structured, solenoid 1 is along necessarily around to being wrapped on coil rack 2.A support is extended on the top of coil rack 2, support can be extend upward a part along cylinder upper edge diametrically 2 then diametrically to have connected a crossbeam, process a boss in the centre position of crossbeam and have a screw hole, with screw, coil rack 2 and diaphragm 4 being coupled together by the hole in the middle of diaphragm 4.The position of rack beam when coil rack 2 is positioned at lower dead center should to avoid movement interference higher than inner yoke 6.
Diaphragm 4 is divided into upper and lower two parts the space in electromagnetic linear actuator, diaphragm 4 is fixed on coil rack 2, distortion is produced with the motion of coil rack 2, when coil rack 2 is up, diaphragm 4 produces the air above strain extruding diaphragm 4 upwards, causes the instantaneous increase of pressure near above diaphragm 4, air can flow to the low direction of pressure, take away a part of heat, produce certain vacuum below diaphragm 4, the gas of below can supplement along air gap comes; When coil rack 2 is descending, diaphragm 4 produces the air below downward strain extruding diaphragm 4, causes the instantaneous increase of pressure of diaphragm 4 close beneath, air can flow out along air gap, take away a part of heat, the space above diaphragm 4 produces vacuum, has replenish air around and comes.The reciprocating motion of coil rack 2, makes air constantly take away heat and then supplement new air, produces an airflow circulating and heat is constantly distributed, thus the temperature of electromagnetic linear actuator is improved.
Diaphragm 4 is arranged on the top of outer yoke 5, the reset condition of installation be convex surface down, because diaphragm 4 has certain elasticity, make the normality of electromagnetic linear actuator be the bottom dead center position that coil rack 2 is positioned at range.When coil rack 2 moves upward, the elastic force of diaphragm 4 is contrary with electromagnetic push direction, high current is needed to export, output electric energy rises: when coil rack 2 moves downward, in the same way, suitably can reduce electric current, required electric energy is corresponding decline also the elastic force of diaphragm 4 and electromagnetic force direction.Owing to can produce certain loss in the distortion of diaphragm 4, the merit that diaphragm 4 consumes when moving upward is greater than to coil rack 2 work when moving downward, and adds the increase that diaphragm 4 can cause power consumption in general.
The operating pressure of diaphragm 4 is generally between 0.4MPa ~ 0.8MPa, the thrust promoting diaphragm 4 is generally smaller, relative to the electromagnetic force of propelling coil skeleton 2 about about 5%, so add the electric energy that consumes of diaphragm 4 increase little compared with before, can think that the energy ezpenditure produced while the interpolation of diaphragm 4 serves thermolysis is very little.
The above is only preferred implementation of the present utility model; be noted that for those skilled in the art; under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (5)
1. a diaphragm heat dissipation type electromagnetic linear actuator, is characterized in that: comprise solenoid (1), coil rack (2), permanent magnet (3), diaphragm (4), outer yoke (5) and inner yoke (6); Described permanent magnet (3) is distributed between the outer yoke (5) of tubular and inner yoke (6), there is air gap between permanent magnet (3) and inner yoke (6) and in air gap, form stable magnetic field, the solenoid (1) that can move up and down in the axial direction and coil rack (2) are arranged in air gap, diaphragm (4) is fixed on the top edge of outer yoke (5), bottom is that a support is processed on coil rack (2) top of tubular, and the support on coil rack (2) and diaphragm (4) utilize securing member to be interconnected.
2. diaphragm heat dissipation type electromagnetic linear actuator according to claim 1, it is characterized in that: described diaphragm (4) comprises the main body of the middle part projection that middle one deck rubber is made, the circular first guide assembly of two panels of stainless steel material and securing member, body of rubber is fitted between the first guide assembly of two panels and together moves with the intermediate ledge position of main body, and a screw hole is left in the centre of diaphragm (4).
3. diaphragm heat dissipation type electromagnetic linear actuator according to claim 1 and 2, it is characterized in that: described diaphragm (4) is arranged on the top of inner yoke (6), certain space is left in the top of diaphragm (4), the bottom of diaphragm (4) is connected with the support on coil rack (2), and when coil rack (2) is positioned at lower dead center, the crossbeam of support should higher than inner yoke (6).
4. diaphragm heat dissipation type electromagnetic linear actuator according to claim 1, it is characterized in that: the bottom of described coil rack (2) is cylindrical and be wound with solenoid (1), a support is processed on the top of coil rack (2), and support centre position upwards processes a bossing along axis and leaves screw hole in the middle part of projection.
5. the diaphragm heat dissipation type electromagnetic linear actuator according to claim 1 or 4, is characterized in that: when described coil rack (2) is positioned at bottom dead center position, diaphragm (4) is in the initial condition protruded downwards; When coil rack (2) is positioned at top dead center position, diaphragm (4) is deformed into state protruding upward, and the maximum deformation quantity of diaphragm is more than or equal to the range of electromagnetic linear actuator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520792572.8U CN205039679U (en) | 2015-10-15 | 2015-10-15 | Diaphragm heat dissipation formula electromagnetism straight line executor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520792572.8U CN205039679U (en) | 2015-10-15 | 2015-10-15 | Diaphragm heat dissipation formula electromagnetism straight line executor |
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| Publication Number | Publication Date |
|---|---|
| CN205039679U true CN205039679U (en) | 2016-02-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520792572.8U Expired - Fee Related CN205039679U (en) | 2015-10-15 | 2015-10-15 | Diaphragm heat dissipation formula electromagnetism straight line executor |
Country Status (1)
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| CN (1) | CN205039679U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105186828A (en) * | 2015-10-15 | 2015-12-23 | 山东理工大学 | Diaphragm heat dissipation type electromagnetic linear actuator |
| CN109030963A (en) * | 2018-09-27 | 2018-12-18 | 云南电网有限责任公司电力科学研究院 | A kind of electrostatic field measurement device based on coil vibration |
-
2015
- 2015-10-15 CN CN201520792572.8U patent/CN205039679U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105186828A (en) * | 2015-10-15 | 2015-12-23 | 山东理工大学 | Diaphragm heat dissipation type electromagnetic linear actuator |
| CN109030963A (en) * | 2018-09-27 | 2018-12-18 | 云南电网有限责任公司电力科学研究院 | A kind of electrostatic field measurement device based on coil vibration |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160217 Termination date: 20161015 |