WO2013049963A1 - 嵌件及其制造方法和包含嵌件的电磁离合器及其制造方法 - Google Patents

嵌件及其制造方法和包含嵌件的电磁离合器及其制造方法 Download PDF

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Publication number
WO2013049963A1
WO2013049963A1 PCT/CN2011/080526 CN2011080526W WO2013049963A1 WO 2013049963 A1 WO2013049963 A1 WO 2013049963A1 CN 2011080526 W CN2011080526 W CN 2011080526W WO 2013049963 A1 WO2013049963 A1 WO 2013049963A1
Authority
WO
WIPO (PCT)
Prior art keywords
insert
bearing
fan clutch
electromagnetic fan
fixing plate
Prior art date
Application number
PCT/CN2011/080526
Other languages
English (en)
French (fr)
Inventor
王兆宇
邢子义
刘中银
刘海涛
Original Assignee
龙口市汽车风扇离合器厂
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 龙口市汽车风扇离合器厂 filed Critical 龙口市汽车风扇离合器厂
Priority to PCT/CN2011/080526 priority Critical patent/WO2013049963A1/zh
Publication of WO2013049963A1 publication Critical patent/WO2013049963A1/zh

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C35/00Rigid support of bearing units; Housings, e.g. caps, covers
    • F16C35/04Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
    • F16C35/06Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
    • F16C35/07Fixing them on the shaft or housing with interposition of an element
    • F16C35/077Fixing them on the shaft or housing with interposition of an element between housing and outer race ring
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D27/00Magnetically- or electrically- actuated clutches; Control or electric circuits therefor
    • F16D27/14Details
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2250/00Manufacturing; Assembly

Definitions

  • the present invention relates to a component and a manufacturing method for a vehicle, and more particularly to an automotive electromagnetic fan clutch, a method of manufacturing the same, an insert, and a method of manufacturing the same. Background technique
  • the fan blades of the electromagnetic fan clutch on the market are bolted to the fan fixing plate, and the fan fixing plate is rotatably connected to the transmission shaft through the bearing.
  • the electromagnet core coil of the electromagnetic clutch is electrically connected to the suction plate, and at the same time, the magnet fixing plate fixedly connected with the suction plate is rotated, and the disk is fixed by the magnet.
  • the magnets are spaced apart from the soft magnets embedded in the fan fixing plate, so that the fan fixing plate is differentially rotated with respect to the magnet fixing plate to form a differential rotation, so that the fan fixing plate drives the fan to rotate, and the vehicle engine water temperature is cooled and cooled.
  • Chinese patent CN101566088A discloses an electromagnetic fan clutch.
  • the bearing block 4' of the fan fixing plate is mounted on the main shaft 3' of the clutch through the bearing 2', and the fan fixing plate is made of die-cast aluminum alloy.
  • the difference between the thermal expansion coefficient of the bearing block 4' of the fan fixed disk and the bearing 2' connected thereto is large, and the fan is fixed due to the external ambient temperature of the car from minus 40 ° C in winter to over 100 ° C in summer.
  • the tolerance of the hoop and bearing 2' will vary with the ambient temperature. When the temperature is low, the bearing 2' is tightly clamped, and the clearance is increased at high temperature.
  • the matching clearance is increased and the fan fixing plate is rotated around the main shaft 3', the fan fixing plate will swing, the bearing 2' is damaged early, and the electromagnetic fan The clutch fails and adversely affects the user. Summary of the invention
  • the technical problem to be solved by the invention is to provide an insert with simple structure and low cost, which can ensure the stable interference fit of the bearing and the fan fixed disc under the condition of temperature change of the external environment temperature, ensuring The electromagnetic fan clutch works normally.
  • Another technical problem to be solved by the present invention is to provide a method of manufacturing the above-described insert.
  • Another technical problem to be solved by the present invention is to provide an electromagnetic fan clutch made using the insert.
  • Another technical problem to be solved by the present invention is to provide a method of manufacturing an electromagnetic fan clutch using the insert.
  • the insert of the present invention is for an electromagnetic fan clutch including a bearing housing and a bearing, wherein an outer surface of the insert and a bearing The seat fits, the inner surface of the insert cooperates with the bearing, and when the bearing seat and the bearing gap change, the insert fills the gap.
  • the insert of the present invention is provided with a groove.
  • An annular right-angled groove is defined in the joint between the left end and the right end surface of the insert of the present invention, and an annular rectangular groove is formed in the middle of the outer surface of the insert, and four axially distributed rectangular through grooves are formed on the outer surface of the insert.
  • the rectangular through grooves are evenly distributed on the circumference of the insert.
  • a threaded groove is formed in the outer surface of the insert of the present invention.
  • a through hole is formed in an outer surface of the insert of the present invention.
  • the through surface of the insert of the present invention is provided with four through holes, and the four through holes are evenly distributed along the circumference of the insert.
  • the material of the insert of the present invention is ferrous metal. Iron based powder metallurgy materials are preferred.
  • the material of the insert of the present invention has a coefficient of expansion of ⁇ , and the expansion coefficient of the bearing is ⁇ , 90% ⁇ ⁇ 110% ⁇ .
  • the present invention differs from the prior art in that the present invention fixes the insert of the present invention in a bearing housing of a fan fixing plate of an electromagnetic fan clutch, and then mounts the fan fixing plate on the main shaft through a bearing, a bearing and an insert.
  • the insert With the interference fit, when the outside temperature changes, the insert can fill the gap between the bearing seat and the bearing due to the difference in expansion coefficient, which does not affect the matching tolerance of the fan fixing plate and the bearing, and can ensure that the electromagnetic fan clutch is different. Normal operation under the condition of outside temperature.
  • the method of manufacturing the insert of the present invention comprises: providing a raw material of the insert; pulverizing the raw material of the insert, adding a plasticizer; placing it in a mold for press molding; and placing it in a sintering furnace for sintering.
  • the insert By manufacturing the insert by the above method, the insert has the advantages of low cost and high quality.
  • the method of making the insert of the present invention is to cold extrude the raw material of the insert.
  • the manufacture of the insert by the above method is a non-cutting processing method, and the cost is low.
  • the insert of the present invention constitutes an electromagnetic fan clutch.
  • an annular soft magnet is arranged in a flange at a right end of the fan fixing plate of the electromagnetic fan clutch, and a bolt hole is opened in the flange, the bolt hole passes through the soft magnet, the bolt hole is a stepped hole, and the bolt The stepped surface of the hole is on the right end face of the soft magnet.
  • the electromagnetic fan clutch of the present invention wherein the flange is provided with a first step and a second step from left to right in sequence, and a first heat sink is uniformly disposed at a position where the first step is combined with the outer surface of the bearing seat, and the bolt hole is opened.
  • the first step is provided with a heat dissipation hole, the heat dissipation hole is evenly distributed on the first step, the second step of the flange is provided with a third step, and the third step is located on the right side of the second step, in the convex
  • a plurality of second fins are uniformly disposed on the right end surface of the edge and opposite to the third step, and a plurality of heat dissipating ribs are evenly disposed on the second step and the third step.
  • the electromagnetic fan clutch of the invention is not affected by external temperature, has stable operation and long service life.
  • the bolt hole for fixing the fan blade in the fan fixing plate is set as a step hole, and the screw is installed
  • the head of the bolt is located in the large hole of the stepped hole, and the tail end of the bolt is fastened by a nut. Since the bolt is in contact with the soft magnet, the thermal expansion coefficient of the bolt and the soft magnet is close, and when the outside temperature rises, the bolt will not loosen.
  • the fan blade is guaranteed not to fall off when rotating at a high speed, thereby improving the electromagnetic fan clutch (the prior art is to screw the bolt into the screw hole of the fan fixing plate body, and when the external temperature rises, the thermal expansion of the fan fixing plate The coefficient is greater than the thermal expansion coefficient of the bolt, causing the threaded connection to loosen, causing the fan blade to rotate off at high speed.
  • the manufacturing method of the electromagnetic fan clutch of the present invention comprises: inserting an insert into a bearing housing of the fan fixing plate; and pressing the bearing into the inner circumferential surface of the insert.
  • the manufacturing method of the electromagnetic fan clutch of the present invention further comprises: passing the bolt from the right side of the fan fixing plate through the bolt hole and the soft magnetic iron; and mounting the nut on the bolt.
  • the manufacturing method of the electromagnetic fan clutch of the present invention can simplify the installation process and stabilize the product performance.
  • Figure 1 is a front cross-sectional view showing the insert of the embodiment 1 of the present invention.
  • Figure 2 is a perspective view of the insert of the embodiment 1 of the present invention.
  • Figure 3 is a front cross-sectional view showing the insert of the embodiment 2 of the present invention.
  • Figure 4 is a perspective view of the insert of the embodiment 2 of the present invention.
  • Figure 5 is a front cross-sectional view showing the insert of the embodiment 3 of the present invention.
  • Figure 6 is a perspective view of the insert of the embodiment 3 of the present invention.
  • Figure 7 is a front cross-sectional view of the fan fixing plate of the electromagnetic fan clutch mounted with the insert;
  • Figure 8 is a perspective view of the fan fixing plate of the electromagnetic fan clutch mounted with the insert;
  • Figure 9 is a separated view of the fan fixing plate of the electromagnetic fan clutch mounted with the insert.
  • Figure 10 is a front cross-sectional view of the electromagnetic fan clutch mounted with the insert
  • Figure 11 is a view showing the mounting state of the insert in the embodiment 1 of the present invention.
  • Figure 12 is a view showing the mounting state of the insert in the second embodiment of the present invention.
  • Figure 13 is a view showing the mounting state of the insert in the embodiment 3 of the present invention.
  • Figure 14 is a front cross-sectional view of a prior art electromagnetic fan clutch. detailed description
  • an insert 1 for an electromagnetic wind including a bearing housing 2 and a bearing 3 is provided.
  • the insert 1 has an annular shape, and an annular right-angle groove 5a is formed at a joint between the left and right end faces of the insert 1 and the outer surface, and an annular rectangular groove 5b is opened in the middle of the outer surface of the insert 1
  • the outer surface of the insert 1 is provided with four axially distributed rectangular through grooves 5c, and the rectangular through grooves 5c are evenly distributed on the circumference of the insert 1.
  • the outer circumferential surface of the insert 1 is in contact with the bearing housing 2, and the inner surface of the insert 1 is matched with the bearing 3.
  • the material of the insert 1 is a 20 gauge seamless steel tube having a coefficient of expansion of 12 micrometers per meter per degree, bearing steel The coefficient of expansion is 12.5 microns per meter per degree, the coefficient of expansion of aluminum is 24 microns per meter per degree, and the coefficient of expansion of the insert 1 is close to that of the bearing 3.
  • the material of the insert 1 may also be a seamless steel pipe having a coefficient of expansion of 11.25 micrometers per meter per degree, or a seamless steel pipe having a coefficient of expansion of 13.75 micrometers per meter per degree.
  • the expansion coefficient of the seamless steel pipe of 11.25 micrometers per meter per metre is 90% of the expansion coefficient of the bearing steel, and the expansion coefficient of the seamless steel pipe of 12 micrometers per meter per metre is 96% of the expansion coefficient of the bearing steel, 13.75 micrometers per
  • the coefficient of expansion of the seamless steel pipe per meter is 110% of the expansion coefficient of the bearing steel.
  • the insert of the present invention can be more firmly fixed to the bearing housing 2 of the fan fixing plate of the electromagnetic fan clutch by providing the right-angled groove 5a, the annular rectangular groove 5b and the rectangular through-groove 5c on the outer surface thereof.
  • the principle is shown in Figure 11: When the temperature rises, the bearing housing 2 and the insert 1 both expand, the bearing housing 2 is made of aluminum, the insert 1 is made of 20 seamless steel tube, and the expansion of the bearing housing 2 Larger than the insert 1, the annular rectangular groove 5b of the insert and the base of the bearing housing 2 in the rectangular through groove are expanded, and the insert 1 is firmly fixed on the bearing housing 2; when the temperature is lowered, the shrinkage of the bearing housing 2 Greater than the amount of shrinkage of the insert 1, it is also ensured that the insert 1 is firmly fixed to the bearing housing 2.
  • an insert 1 for an electromagnetic fan clutch including a bearing housing 2 and a bearing 3, the insert 1 being annular, on the outer surface of the insert 1
  • the threaded groove 6 is machined.
  • the outer circumferential surface of the insert 1 is in contact with the bearing housing 2, and the inner surface of the insert 1 is matched with the bearing 3.
  • the material of the insert 1 is a 20 gauge seamless steel tube having a coefficient of expansion of 12 micrometers per meter per degree, bearing steel The expansion coefficient is 12.5 micrometers per meter per degree, the expansion coefficient of aluminum is 24 micrometers per meter per degree, and the expansion coefficient of the insert 1 is close to that of the bearing 3.
  • the material of the insert 1 may also be a seamless steel pipe having a coefficient of expansion of 11.25 micrometers per meter per degree or a seamless steel pipe having a coefficient of expansion of 13.75 micrometers per meter per degree.
  • the expansion coefficient of the seamless steel pipe of 11.25 micrometers per meter per metre is 90% of the expansion coefficient of the bearing steel
  • the expansion coefficient of the seamless steel pipe of 12 micrometers per meter per metre is 96% of the expansion coefficient of the bearing steel, 13.75 micrometers per
  • the coefficient of expansion of the seamless steel pipe per meter is 110% of the expansion coefficient of the bearing steel.
  • the insert 1 made of a seamless steel pipe having the above expansion coefficient can ensure that the interference fit between the insert 1 and the bearing remains unchanged when the external temperature changes, because the expansion coefficient of the insert 1 and the bearing are close.
  • the insert of the present invention enables the insert to be more firmly fixed to the bearing housing 2 of the fan fixed disk of the electromagnetic fan clutch.
  • the principle is shown in Figure 12: When the temperature rises, the bearing housing 2 and the insert 1 both expand, the bearing housing 2 is made of aluminum, the insert 1 is made of 20 seamless steel tube, and the expansion of the bearing housing 2 Larger than insert 1, The base of the bearing housing 2 in the thread groove 6 of the insert expands, and the insert 1 is firmly fixed on the bearing housing 2; when the temperature is lowered, the shrinkage of the bearing housing 2 is larger than the shrinkage of the insert 1, and the inlay can be ensured. The piece 1 is firmly fixed to the bearing housing 2.
  • an insert 1 for an electromagnetic fan clutch including a bearing housing 2 and a bearing 3, the insert 1 being annular, on the outer surface of the insert 1
  • the upper opening is provided with four through holes 7 formed by the groove 4 passing through the ring body of the insert 1 , the four through holes 7 are evenly distributed along the circumference of the insert 1 , and the axes of the opposite two through holes 7 are coincident.
  • the axes of the two through holes 7 are parallel to each other.
  • the outer circumferential surface of the insert 1 is in contact with the bearing housing 2, and the inner surface of the insert 1 is matched with the bearing 3.
  • the material of the insert 1 is an iron-based powder metallurgy material having a coefficient of expansion of 12.25 micrometers per meter per degree, bearing steel The coefficient of expansion is 12.5 microns per meter per degree, the coefficient of expansion of aluminum is 24 microns per meter per degree, and the coefficient of expansion of the insert 1 is close to that of the bearing 3.
  • the material of the above insert 1 may also be an iron-based powder metallurgy material having a coefficient of expansion of 11.25 micrometers per meter per degree, or an iron-based powder metallurgy material having a coefficient of expansion of 13.75 micrometers per meter per degree.
  • the expansion coefficient of the seamless steel pipe of 11.25 micrometers per meter per metre is 90% of the expansion coefficient of the bearing steel, and the expansion coefficient of the seamless steel pipe of 12.25. micrometers per meter per degree is 98% of the expansion coefficient of the bearing steel, 13.75 micrometers.
  • the coefficient of expansion of the seamless steel pipe per meter per degree is 110% of the expansion coefficient of the bearing steel.
  • the insert 1 made of the iron-based powder metallurgy material having the above expansion coefficient can ensure that the interference fit between the insert 1 and the bearing remains unchanged when the external temperature changes, because the expansion coefficient of the insert 1 and the bearing are close.
  • the insert of the present invention can be more securely fastened to the bearing housing 2 of the fan fixing plate of the electromagnetic fan clutch by providing four through holes 7 on its outer surface.
  • the principle is shown in Figure 13: When the temperature rises, the bearing housing 2 and the insert 1 both expand, the bearing housing 2 is made of aluminum, the insert 1 is made of iron-based powder metallurgy material, and the expansion of the bearing housing 2 Larger than the insert 1, the base of the bearing housing 2 in the through hole 7 of the insert expands, and the insert 1 is firmly fixed on the bearing housing 2; when the temperature is lowered, the shrinkage of the bearing housing 2 is larger than the shrinkage of the insert 1 The amount can also ensure that the insert 1 is firmly fixed to the bearing housing 2.
  • the manufacturing method of the invention is as follows: firstly, the iron-based powder metallurgy material is pulverized to prepare a powder; the prepared powder is sieved, uniformly mixed, added with a plasticizer, and placed in a mold to be pressed and formed, between the powder particles.
  • the atom is solid-phase diffusion and mechanical bite, so that the press-formed insert blank has a certain strength; finally, the press-formed insert blank is placed in a sintering furnace for sintering, and the sintering temperature is about 2/3 of the melting point of the blank. Due to the diffusion of different kinds of atoms at high temperatures, the oxides on the surface of the powder are reduced and recrystallized, so that the powder particles are bonded to each other, increasing the strength of the insert.
  • the manufacturing method of the insert of the present invention may further be: first, inserting an insert mold; then placing the insert mold on the press; then placing a 20th seamless steel pipe ring in the mold; starting the press cold extrusion; An annular insert with a groove on the surface is formed.
  • the electromagnetic fan clutch of the present invention is fixedly mounted with the insert 1 of the first embodiment in the bearing housing 2 at the left end of the fan fixing plate 8 of the electromagnetic fan clutch, and may also be the insert of the embodiment 2 or 3, the insert 1
  • the outer circumferential surface is in contact with the bearing housing 2, and the base body of the bearing housing 2 is filled in the right angle groove 5a, the annular rectangular groove 5b and the rectangular through groove 5c of the insert 1 as shown in Figs. 7, 8, and 9.
  • the left and right ends of the insert 1 are fixed by the base of the bearing housing 2, and an annular soft magnet 10 is disposed in the flange 9 at the right end of the fan fixing plate 8 of the electromagnetic fan clutch, and a bolt hole 11 is opened in the flange 9.
  • the bolt hole 11 passes through the soft magnet 10, and the bolt hole 11 is a stepped hole, and the stepped surface 12 of the bolt hole 11 is on the right end surface of the soft magnet 10.
  • a first step 13 and a second step 14 are sequentially disposed on the flange 9 from left to right.
  • the first step 13 is uniformly disposed with a plurality of first fins 15 at a position where the outer surface of the bearing block 2 is combined, and the bolt hole 11 is opened at
  • the first step 13 is provided with a heat dissipation hole 16 which is evenly distributed on the first step 13.
  • the second step 14 of the flange 9 is provided with a third step 17, and the third step 17 is located.
  • the electromagnetic fan clutch of the present invention is manufactured by first mounting an electromagnet core 31 on the main shaft 20, and the electromagnet core 31 is located at the right end of the main shaft 20; then, a bearing 41 is mounted between the main shaft 20 and the electromagnet core 31.
  • the semi-circular key 32 is mounted on the main shaft 20; then the drive disc 33 is mounted on the main shaft 20, ensuring that the semi-circular key 32 is located in the key groove 34 of the drive disc 33; then the magnet fixing disc 35 is mounted on the main shaft 20; A bearing 42 is mounted between the magnet fixing plate 35; and then the distance sleeve 36 is set on the main shaft 20; then the fan fixing plate 8 on which the insert 1 and the bolt 37 are mounted is fitted on the main shaft, and the insert is mounted on the fan by insert molding.
  • the bolt 37 passes through the bolt hole 11 from right to left, and then is fastened with a nut 38; then the bearing 3 is mounted between the spindle 20 and the fan fixing plate 8; then the fan fixing plate 8 a retaining ring 40 is mounted in the annular groove 39 of the bearing housing 2 for preventing axial sway between the bearing 3 and the bearing housing 2; finally, a compression nut 41 is mounted at the left end of the main shaft 20 to prevent the bearing 3 and Axial movement between the shaft 20.
  • the process of inserting the insert 1 into the fan fixing plate 8 is: firstly, the insert 1 is fixedly placed in the mold; the mold and the insert 1 are fully preheated; then the liquid metal is injected into the mold cavity; The mold is cooled and the die casting is completed.
  • the process of inserting the insert 1 into the fan fixing plate 8 can also be as follows: Firstly, the insert 1 is mounted on the casting sand type, and the preheating is fully performed; then the liquid metal is poured; finally, the natural cooling and sand cleaning are carried out.
  • the process of installing the bolt 37 on the fan fixing plate 8 is as follows: firstly, the bolt 37 is passed from the right side of the fan fixing plate through the bolt hole 11 and the soft magnet 10 embedded in the fan fixing plate 8; then the nut 38 is mounted on the screw 38 On the bolt 37.
  • the soft magnet embedded in the fan fixing plate cuts the magnetic lines of force to generate a magnetic eddy current, thereby generating heat, transferring to the fan fixing plate, or when the external environment temperature is high, the cast aluminum fan
  • the thermal expansion of the fixed plate occurs. Due to the insert, the thermal expansion coefficient of the insert and the bearing is close to each other, which does not affect the matching tolerance of the fan fixed disk and the bearing. It can ensure that the electromagnetic fan clutch can also be in the case of high external temperature. normal work.
  • the thermal expansion coefficient of the bolt 37 and the soft magnet 10 is close, and when the outside air temperature is raised, the radial expansion amount of the bolt 37 and the expansion of the soft magnet hole 50 are simultaneously performed.
  • the amount is close, so that the bolt 37 and the soft magnet 10 can be kept in close contact, and the bolt 37 is not loosened, which ensures that the fan blade does not fall off when rotating at a high speed, thereby improving the safety of the fan fixing plate.
  • the first heat sink and the heat dissipation rib disposed on the left side of the fan fixed disk body can play a heat dissipation function when the fan fixed disk rotates, and at the same time function as a reinforcing rib.
  • the insert of the present invention and the electromagnetic fan clutch including the insert automobile are fixedly mounted in the bearing seat of the fan fixing plate of the electromagnetic fan clutch by the insert of the present invention, and then the fan fixing plate is mounted on the main shaft through the bearing, the bearing and the embedded Piece interference fit, when the external temperature changes, because the expansion coefficient of the insert is close to the expansion coefficient of the bearing, the insert can fill the gap between the bearing seat and the bearing due to the difference in expansion coefficient, to the fan fixing plate and the bearing
  • the tolerance will not affect the bearing. It can ensure the normal operation of the electromagnetic fan clutch under different external temperatures. It prevents the electromagnetic fan clutch of the car from affecting its stability due to external temperature changes, and at the same time improves the service life of the electromagnetic fan clutch of the automobile. Great market prospects and strong industrial applicability.

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  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
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Abstract

一种汽车电磁风扇离合器及其制造方法、嵌件及其制造方法。一种嵌件(1),用于包括有轴承座(2)和轴承(3)的电磁风扇离合器,其中所述嵌件(1)的外表面与轴承座(2)配合,嵌件(1)的内表面与轴承(3)配合,当轴承座(2)和轴承(3)间隙变化时,嵌件(1)填充所述间隙。嵌件(1)的制造方法包括:提供嵌件(1)的原材料;将嵌件(1)的原材料粉碎,加入增塑剂混合;放入模具中压制成型;放入烧结炉中进行烧结。包括嵌件(1)的电磁风扇离合器。一种电磁风扇离合器的制造方法,包括:将嵌件(1)嵌铸在所述风扇固定盘的所述轴承座(2)内;将轴承(3)压入所述嵌件(1)内圆周面。

Description

嵌件及其制造方法和包含嵌件的电磁离合器及其制造方法 技术领域
本发明涉及车辆用的零部件及制造方法, 特别是涉及一种汽车电磁风扇离合器及其制造 方法、 嵌件及其制造方法。 背景技术
市场上的电磁风扇离合器的风扇叶是用螺栓固定在风扇固定盘上的, 风扇固定盘通过轴 承与传动轴转动相连。 工作时, 当汽车发动机水温达到设定值, 电磁离合器的电磁铁芯线圈 得电与吸合盘吸合相接, 并同时带动与吸合盘固连的磁铁固定盘转动, 通过磁铁固定盘上的 磁铁与风扇固定盘内嵌的软磁铁呈间距吸合, 使风扇固定盘相对磁铁固定盘作滞后运转形成 差速转动, 以实现风扇固定盘带动风扇转动, 对汽车发动机水温进行散热降温。 中国专利 CN101566088A公开了一种电磁风扇离合器, 如图 14所示, 其风扇固定盘 Γ的轴承座 4'通过 轴承 2'安装在离合器的主轴 3'上, 风扇固定盘 Γ是采用压铸铝合金制成, 风扇固定盘 Γ的轴 承座 4'和与其连接的轴承 2'材质热膨胀系数差异较大, 又因汽车使用外界环境温度由冬天的 零下 40°C到夏天的 100°C以上, 导致风扇固定盘 Γ和轴承 2'的配合公差会随环境温度的影响 而变化。 在低温时轴承 2'箍紧, 高温时配合间隙增大, 当配合间隙增大、 风扇固定盘 Γ在绕 主轴 3'旋转时, 风扇固定盘 Γ会产生摆动, 轴承 2'早期损坏, 电磁风扇离合器失效, 对用户 造成不良影响。 发明内容
本发明要解决的技术问题是提供一种结构简单、 成本低的嵌件, 能够使风扇固定盘在外 界环境温度温度变化的条件下始终保持轴承与风扇固定盘稳定不变的过盈配合, 保证电磁风 扇离合器正常工作。
本发明要解决的另一个技术问题是提供上述嵌件的制造方法。
本发明要解决的另一个技术问题是提供一种使用该嵌件制成的电磁风扇离合器。
本发明要解决的另一个技术问题是提供一种使用该嵌件制成的电磁风扇离合器的制造方 法。
本发明嵌件, 用于包括有轴承座和轴承的电磁风扇离合器, 其中所述嵌件的外表面与轴承 座配合, 嵌件的内表面与轴承配合, 当轴承座和轴承间隙变化时, 嵌件填充所述间隙。
本发明嵌件上开设有凹槽。
本发明嵌件的左、 右端面与外表面结合处均开设有一环状直角槽, 嵌件外表面中部开设 有一条环状矩形槽, 嵌件外表面开设有四条轴向分布的矩形通槽, 矩形通槽均匀分布在嵌件 的圆周上。
本发明嵌件的外表面上加工有螺纹槽。
本发明嵌件的外表面上开设有通孔。
本发明嵌件的外表面上开设有四个通孔, 四个通孔沿嵌件圆周均匀分布。
本发明嵌件的材质为黑色金属。 优选铁基粉末冶金材料。
本发明嵌件的材质的膨胀系数为 α, 轴承的膨胀系数为 β, 90% β α 110% β。
本发明与现有技术不同之处在于本发明通过将本发明的嵌件固定安装在电磁风扇离合器 的风扇固定盘的轴承座内, 然后通过轴承将风扇固定盘安装在主轴上, 轴承与嵌件过盈配合, 当外界温度变化时, 嵌件能够填充轴承座和轴承之间因膨胀系数不同而产生的间隙, 对风扇 固定盘和轴承的配合公差不会产生影响, 能够保证电磁风扇离合器在不同外界温度的情况下 正常工作。
制造本发明的嵌件的方法, 包括: 提供所述嵌件的原材料; 将所述嵌件的原材料粉碎, 加入增塑剂混合; 放入模具中压制成型; 放入烧结炉中进行烧结。
通过采用上述方法制造嵌件, 具有嵌件成本低、 质量高的优点。
制造本发明的嵌件的方法为将嵌件的原材料冷挤压成型。
通过采用上述方法制造嵌件属于无切削的加工方式, 成本低。
本发明的嵌件, 组成电磁风扇离合器。
本发明电磁风扇离合器, 在电磁风扇离合器的风扇固定盘右端的凸缘内设有环形的软磁 铁, 在凸缘上开设有螺栓孔, 螺栓孔穿过软磁铁, 螺栓孔为台阶孔, 且螺栓孔的台阶面在软 磁铁的右端面上。
本发明电磁风扇离合器, 其中所述凸缘上从左到右依次设有第一台阶和第二台阶, 第一 台阶与轴承座外表面相结合的位置均匀设置有若干第一散热片, 螺栓孔开设在第二台阶上, 第一台阶上开设有散热孔, 散热孔均匀分布在第一台阶, 凸缘的第二台阶上设置有第三台阶, 第三台阶位于第二台阶的右侧, 在凸缘的右端面上, 且与第三台阶相对的位置均匀设置有若 干第二散热片, 第二台阶和第三台阶上均匀设置有若干散热筋。
本发明电磁风扇离合器, 不受外界温度影响, 工作稳定, 使用寿命长。
本发明电磁风扇离合器, 风扇固定盘中固定安装扇叶的螺栓孔设置为台阶孔, 安装时螺 栓的头部位于台阶孔的大孔内, 螺栓的尾端由螺母紧固, 由于螺栓与软磁铁接触, 螺栓与软 磁铁的热膨胀系数接近, 当外部气温升高时, 螺栓也不会松动, 保证了风扇扇叶在高速旋转 时不会脱落, 从而提高了电磁风扇离合器 (现有技术为将螺栓拧入风扇固定盘本体的螺钉孔 中, 当外部温度升高时, 由于风扇固定盘的热膨胀系数大于螺栓的热膨胀系数, 使螺纹连接 松动, 从而导致风扇扇叶在高速旋转脱落)。
本发明电磁风扇离合器的制造方法, 包括: 将嵌件嵌铸在所述风扇固定盘的轴承座内; 将轴承压入嵌件内圆周面。
本发明电磁风扇离合器的制造方法, 还包括将螺栓从风扇固定盘右侧穿过螺栓孔和软磁 铁; 将螺帽安装在螺栓上。
本发明电磁风扇离合器的制造方法, 能够使安装工艺简化, 产品性能稳定。
下面结合附图对本发明一种电磁风扇离合器的风扇固定盘作进一步说明。 附图说明
图 1为本发明实施例 1中嵌件的主视剖视图;
图 2为本发明实施例 1中嵌件的轴测图;
图 3为本发明实施例 2中嵌件的主视剖视图;
图 4为本发明实施例 2中嵌件的轴测图;
图 5为本发明实施例 3中嵌件的主视剖视图;
图 6为本发明实施例 3中嵌件的轴测图;
图 7为安装有嵌件的电磁风扇离合器的风扇固定盘的主视剖视图;
图 8为安装有嵌件的电磁风扇离合器的风扇固定盘的的轴测图;
图 9为安装有嵌件的电磁风扇离合器的风扇固定盘的分离视图;
图 10为安装有嵌件的电磁风扇离合器的主视剖视图;
图 11为本发明实施例 1中嵌件的安装状态图;
图 12为本发明实施例 2中嵌件的安装状态图;
图 13为本发明实施例 3中嵌件的安装状态图;
图 14为现有技术的电磁风扇离合器的主视剖视图。 具体实施方式
实施例 1 :
如图 1、 图 2、 图 10所示, 本发明一种嵌件 1, 用于包括有轴承座 2和轴承 3的电磁风 扇离合器, 嵌件 1呈圆环状, 在嵌件 1的左、 右端面与外表面结合处均开设有一环状直角槽 5a, 在嵌件 1外表面中部开设有一条环状矩形槽 5b, 嵌件 1外表面开设有四条轴向分布的矩 形通槽 5c, 矩形通槽 5c均匀分布在嵌件 1的圆周上。 嵌件 1的外圆周表面与轴承座 2接触, 嵌件 1的内表面与轴承 3配合, 嵌件 1的材质为 20号无缝钢管, 其膨胀系数为 12微米每米 每度, 轴承钢的膨胀系数为 12.5微米每米每度, 铝的膨胀系数为 24微米每米每度, 嵌件 1 的膨胀系数与轴承 3接近。 上述嵌件 1的材质还可以是膨胀系数为 11.25微米每米每度的无 缝钢管, 或者是膨胀系数为 13.75微米每米每度的无缝钢管。其中 11.25微米每米每度的无缝 钢管的膨胀系数为轴承钢的膨胀系数的 90%, 12微米每米每度的无缝钢管的膨胀系数为轴承 钢的膨胀系数的 96%, 13.75 微米每米每度的无缝钢管的膨胀系数为轴承钢的膨胀系数的 110%。 采用上述膨胀系数的无缝钢管制作的嵌件 1, 在外界温度改变时, 因为嵌件 1与轴承 的膨胀系数接近, 能够保证嵌件 1与轴承之间的过盈配合保持不变。
本发明嵌件通过在其外表面上设置直角槽 5a、 环状矩形槽 5b和矩形通槽 5c, 能够使嵌 件更加牢固的固定在电磁风扇离合器的风扇固定盘的轴承座 2上。其原理如图 11所示: 当温 度升高时,轴承座 2和嵌件 1均膨胀,轴承座 2的材质为铝,嵌件 1的材质为 20号无缝钢管, 轴承座 2的膨胀量比嵌件 1大, 嵌件的环状矩形槽 5b和矩形通槽内的轴承座 2基体膨胀, 将 嵌件 1牢固的固定在轴承座 2上; 当温度降低时, 轴承座 2的收缩量大于嵌件 1的收缩量, 也能保证嵌件 1牢固的固定在轴承座 2上。
实施例 2:
如图 3、 图 4、 图 12所示, 本发明一种嵌件 1, 用于包括有轴承座 2和轴承 3的电磁风 扇离合器, 嵌件 1呈圆环状, 在嵌件 1的外表面上加工有螺纹槽 6。 嵌件 1的外圆周表面与 轴承座 2接触, 嵌件 1的内表面与轴承 3配合, 嵌件 1的材质为 20号无缝钢管, 其膨胀系数 为 12微米每米每度, 轴承钢的膨胀系数为 12.5微米每米每度, 铝的膨胀系数为 24微米每米 每度, 嵌件 1的膨胀系数与轴承 3接近。 上述嵌件 1的材质还可以是膨胀系数为 11.25微米 每米每度的无缝钢管, 或者是膨胀系数为 13.75微米每米每度的无缝钢管。其中 11.25微米每 米每度的无缝钢管的膨胀系数为轴承钢的膨胀系数的 90%, 12微米每米每度的无缝钢管的膨 胀系数为轴承钢的膨胀系数的 96%, 13.75微米每米每度的无缝钢管的膨胀系数为轴承钢的膨 胀系数的 110%。 采用上述膨胀系数的无缝钢管制作的嵌件 1, 在外界温度改变时, 因为嵌件 1与轴承的膨胀系数接近, 能够保证嵌件 1与轴承之间的过盈配合保持不变。
本发明嵌件通过在其外表面上设置螺纹槽 6, 能够使嵌件更加牢固的固定在电磁风扇离 合器的风扇固定盘的轴承座 2上。其原理如图 12所示: 当温度升高时, 轴承座 2和嵌件 1均 膨胀,轴承座 2的材质为铝,嵌件 1的材质为 20号无缝钢管,轴承座 2的膨胀量比嵌件 1大, 嵌件的螺纹槽 6内的轴承座 2基体膨胀, 将嵌件 1牢固的固定在轴承座 2上; 当温度降低时, 轴承座 2的收缩量大于嵌件 1的收缩量, 也能保证嵌件 1牢固的固定在轴承座 2上。
实施例 3 :
如图 5、 图 6、 图 13所示, 本发明一种嵌件 1, 用于包括有轴承座 2和轴承 3的电磁风 扇离合器, 嵌件 1呈圆环状, 在嵌件 1的外表面上开设有四个通孔 7, 通孔 7为凹槽 4贯通 嵌件 1环体后形成, 四个通孔 7沿嵌件 1圆周均匀分布, 且相对的两个通孔 7的轴线重合, 相临两个通孔 7的轴线平行。 嵌件 1的外圆周表面与轴承座 2接触, 嵌件 1的内表面与轴承 3配合, 嵌件 1的材质为铁基粉末冶金材料, 其膨胀系数为 12.25微米每米每度, 轴承钢的膨 胀系数为 12.5微米每米每度, 铝的膨胀系数为 24微米每米每度, 嵌件 1的膨胀系数与轴承 3 接近。 上述嵌件 1 的材质还可以是膨胀系数为 11.25微米每米每度的铁基粉末冶金材料, 或 者是膨胀系数为 13.75微米每米每度的铁基粉末冶金材料。其中 11.25微米每米每度的无缝钢 管的膨胀系数为轴承钢的膨胀系数的 90%, 12.25.微米每米每度的无缝钢管的膨胀系数为轴承 钢的膨胀系数的 98%, 13.75 微米每米每度的无缝钢管的膨胀系数为轴承钢的膨胀系数的 110%。 采用上述膨胀系数的铁基粉末冶金材料制作的嵌件 1, 在外界温度改变时, 因为嵌件 1与轴承的膨胀系数接近, 能够保证嵌件 1与轴承之间的过盈配合保持不变。
本发明嵌件通过在其外表面上设置四个通孔 7, 能够使嵌件更加牢固的固定在电磁风扇 离合器的风扇固定盘的轴承座 2上。 其原理如图 13所示: 当温度升高时, 轴承座 2和嵌件 1 均膨胀, 轴承座 2的材质为铝, 嵌件 1的材质为铁基粉末冶金材料, 轴承座 2的膨胀量比嵌 件 1大, 嵌件的通孔 7内的轴承座 2基体膨胀, 将嵌件 1牢固的固定在轴承座 2上; 当温度 降低时, 轴承座 2的收缩量大于嵌件 1的收缩量, 也能保证嵌件 1牢固的固定在轴承座 2上。
本发明嵌件的制造方法为: 首先将铁基粉末冶金材料粉碎, 制取粉末; 再将制取的粉末 经过筛分、 混合均匀, 加入增塑剂, 放入模具中压制成型, 粉粒间的原子通过固相扩散和机 械咬合作用, 使压制成型的嵌件坯料具有一定的强度; 最后将压制成型的嵌件毛坯放入烧结 炉中进行烧结, 烧结温度约为毛坯熔点的 2/3, 由于高温下不同种类原子的扩散, 粉末表面氧 化物被还原以及再结晶, 使粉末颗粒互相结合, 提高了嵌件的强度。
本发明嵌件的制造方法还可以为: 首先制作嵌件模具; 接着将嵌件模具放置在压机上; 然后将 20号无缝钢管圆环放置在模具内; 启动冲压机冷挤压; 最后形成表面带有凹槽的环形 嵌件。
对于以上嵌件的两种制造方法, 以及通过机加工制造嵌件进行试验, 测得数据结果如下 表所示: 粉末冶金 冷挤压成型 机加工 成本(不包含原材料) 40% 30% 100%
本发明电磁风扇离合器, 在电磁风扇离合器的风扇固定盘 8左端的轴承座 2内固定安装 有实施例 1中的嵌件 1, 也可以是实施例 2或 3中的嵌件, 嵌件 1的外圆周表面与轴承座 2 接触, 结合图 7、 图 8、 图 9所示, 在嵌件 1的直角槽 5a、 环状矩形槽 5b和矩形通槽 5c内均 填充有轴承座 2的基体, 嵌件 1的左右两端均通过轴承座 2基体固定, 在电磁风扇离合器的 风扇固定盘 8右端的凸缘 9内设有环形的软磁铁 10, 在凸缘 9上开设有螺栓孔 11, 所述螺栓 孔 11穿过软磁铁 10,所述螺栓孔 11为台阶孔,且螺栓孔 11的台阶面 12在软磁铁 10的右端 面上。 在凸缘 9上从左到右依次设有第一台阶 13和第二台阶 14, 第一台阶 13与轴承座 2外 表面相结合的位置均匀设置有若干第一散热片 15, 螺栓孔 11开设在第二台阶 14上, 第一台 阶 13上开设有散热孔 16, 散热孔 16均匀分布在第一台阶 13上, 凸缘 9的第二台阶 14上设 置有第三台阶 17, 第三台阶 17位于第二台阶 14的右侧, 在凸缘 9的右端面上, 且与第三台 阶 17相对的位置均匀设置有若干第二散热片 18, 第二台阶 14和第三台阶 17上均匀设置有 若干散热筋 19。
如图 10所示,本发明电磁风扇离合器的制作方法为:首先在主轴 20上安装电磁铁芯 31, 电磁铁芯 31位于主轴 20右端; 接着在主轴 20和电磁铁芯 31之间安装轴承 41 ; 然后在主轴 20上安装半圆键 32; 接着在主轴 20上安装传动盘 33, 确保使半圆键 32位于传动盘 33的键 槽 34内; 然后在主轴 20上安装磁铁固定盘 35 ; 接着在主轴 20和磁铁固定盘 35之间安装轴 承 42; 然后在主轴 20上套装距离套 36; 接着将安装有嵌件 1和螺栓 37的风扇固定盘 8套装 在主轴上, 嵌件是通过嵌铸安装在风扇固定盘 8的轴承座 2内的, 螺栓 37从右向左穿过螺栓 孔 11, 然后用螺母 38紧固; 接着在主轴 20和风扇固定盘 8之间安装轴承 3 ; 然后在风扇固 定盘 8的轴承座 2的环形槽 39内安装挡环 40, 用于防止轴承 3和轴承座 2之间轴向窜动; 最后在主轴 20的左端安装压紧螺母 41, 防止轴承 3和主轴 20之间轴向窜动。
其中嵌件 1嵌铸在风扇固定盘 8上的工艺过程为: 首先将嵌件 1固定放置在模具中; 将 模具和嵌件 1充分预热; 然后液态金属压射进模具型腔中; 最后冷却脱模, 完成压铸。
其中嵌件 1嵌铸在风扇固定盘 8上的工艺过程还可以为: 首先将嵌件 1安装在铸造砂型 上, 充分预热; 然后浇注液态金属; 最后自然冷却、 清沙。
通过将嵌件 1直接嵌铸在风扇固定盘上, 能够节省加工和装配成本, 提高零件的整体强 度, 减小装配误差。 其中螺栓 37安装在风扇固定盘 8上的过程为: 首先将螺栓 37从风扇固定盘右侧穿过螺 栓孔 11和嵌铸在风扇固定盘 8中的软磁铁 10; 然后将螺帽 38安装在所述螺栓 37上。
本发明电磁风扇离合器在工作时, 在风扇固定盘内嵌铸的软磁铁切割磁力线, 产生磁涡 流, 从而产生热量, 传递到风扇固定盘上, 或者在外部环境温度较高时, 铸铝的风扇固定盘 会发生热膨胀, 由于设置有嵌件, 嵌件与轴承的热膨胀系数接近, 对风扇固定盘和轴承的配 合公差不会产生影响, 能够保证电磁风扇离合器在外界温度较高的情况下也能正常工作。 同 时, 由于螺栓 37的光杆部分的外圆周面与软磁铁 10接触, 螺栓 37与软磁铁 10的热膨胀系 数接近, 当外部气温升高时, 螺栓 37径向的膨胀量与软磁铁孔 50的膨胀量接近, 因此螺栓 37与软磁铁 10能够保持紧密接触, 螺栓 37不会松动, 保证了风扇扇叶在高速旋转时不会脱 落, 从而提高了风扇固定盘的安全性。 设置在风扇固定盘本体左侧的第一散热片和散热筋, 在风扇固定盘旋转时能够起到散热作用, 同时起到加强筋的作用。
对使用以上三个实施例的嵌件的电磁风扇离合器进行相关试验, 测试数据结果如下表所
Figure imgf000009_0001
以上所述的实施例仅仅是对本发明的优选实施方式进行描述, 并非对本发明的范围进行 限定, 在不脱离本发明设计精神的前提下, 本领域普通技术人员对本发明的技术方案作出的 各种变形和改进, 均应落入本发明权利要求书确定的保护范围内。 工业实用性
本发明嵌件和包含嵌件汽车电磁风扇离合器, 通过将本发明的嵌件固定安装在电磁风扇 离合器的风扇固定盘的轴承座内, 然后通过轴承将风扇固定盘安装在主轴上, 轴承与嵌件过 盈配合, 当外界温度变化时, 因为嵌件的膨胀系数与轴承的膨胀系数接近, 嵌件能够填充轴 承座和轴承之间因膨胀系数不同而产生的间隙, 对风扇固定盘和轴承的配合公差不会产生影 响, 能够保证电磁风扇离合器在不同外界温度的情况下正常工作, 防止汽车电磁风扇离合器 因外界温度变化时, 影响其稳定性, 同时提高汽车电磁风扇离合器的使用寿命, 因此具有很 大的市场前景和很强的工业实用性。

Claims

1、 一种嵌件(1), 用于包括有轴承座(2)和轴承(3) 的电磁风扇离合器, 其特征在于: 所述嵌件 (1) 的外表面与轴承座 (2) 配合, 所述嵌件 (1) 的内表面与轴承 (3) 配合, 当 所述轴承座 (2) 和所述轴承 (3) 间隙变化时, 所述嵌件 (1) 填充所述间隙。
2、 根据权利要求 1所述的一种嵌件 (1), 其特征在于: 所述嵌件 (1) 开设有凹槽 (4)。
3、 根据权利要求 2所述的一种嵌件 (1), 其特征在于: 所述嵌件 (1) 的左、 右端面与 外表面结合处均开设有一环状直角槽 (5a), 所述嵌件 (1) 外表面中部开设有一条环状矩形 槽 (5b), 所述嵌件 (1) 外表面开设有四条轴向分布的矩形通槽 (5c), 所述矩形通槽 (5c) 均匀分布在嵌件 (1) 的圆周上。
4、 根据权利要求 1所述的一种嵌件 (1), 其特征在于: 所述嵌件 (1) 的外表面上加工 有螺纹槽 (6)。
5、 根据权利要求 1所述的一种嵌件 (1), 其特征在于: 所述嵌件 (1) 的外表面上开设 有通孔 (7)。
6、 根据权利要求 5所述的一种嵌件 (1), 其特征在于: 所述嵌件 (1) 的外表面上开设 有四个通孔 (7), 所述四个通孔 (7) 沿嵌件 (1) 圆周均匀分布。
7、 根据权利要求 1-6任一项所述的嵌件 (1), 其特征在于: 所述嵌件 (1) 的材质为黑 色金属。
8、 根据权利要求 7所述的嵌件 (1), 所述黑色金属为铁基粉末冶金材料。
9、 根据权利要求 1所述的一种嵌件 (1), 其特征在于: 所述嵌件 (1) 的材质的膨胀系 数为 α, 轴承 (3) 的膨胀系数为 β, 90% β α 110%β。
10、 制造权利要求 1-9任一项所述嵌件 (1) 的方法, 包括:
提供所述嵌件 (1) 的原材料;
将所述嵌件 (1) 的原材料粉碎, 加入增塑剂混合;
放入模具中压制成型;
放入烧结炉中进行烧结。
11、 制造权利要求 1-9任一项所述嵌件 (1) 的方法, 包括:
将所述嵌件 (1) 的原材料冷挤压成型。
12、 一种包括权利要求 1-9任一项所述嵌件 (1) 的电磁风扇离合器。
13、 如权利要求 12所述的电磁风扇离合器, 其特征在于: 在电磁风扇离合器的风扇固定 盘 (8)右端的凸缘 (9) 内设有环形的软磁铁 (10), 在凸缘 (9) 上开设有螺栓孔 (11), 所 述螺栓孔(11 )穿过软磁铁(10), 所述螺栓孔(11 )为台阶孔, 且螺栓孔(11 )的台阶面(12) 在软磁铁 (10) 的右端面上。
14、 如权利要求 13所述的电磁风扇离合器, 其特征在于: 所述凸缘 (9) 上从左到右依 次设有第一台阶 (13 ) 和第二台阶 (14), 所述第一台阶 (13 ) 与轴承座 (2) 外表面相结合 的位置均匀设置有若干第一散热片 (15 ), 所述螺栓孔 11开设在第二台阶 (14) 上, 所述第 一台阶 (13 ) 上开设有散热孔 (16), 所述散热孔 (16)均匀分布在第一台阶 (13 ) 上, 所述 凸缘 (9) 的第二台阶 (14) 上设置有第三台阶 (17), 第三台阶 (17) 位于第二台阶 (14) 的右侧, 在凸缘(9) 的右端面上, 且与第三台阶(17)相对的位置均匀设置有若干第二散热 片 (18), 所述第二台阶 (14) 和第三台阶 (17) 上均匀设置有若干散热筋 (19)。
15、 制造权利要求 12-14任一项所述的电磁风扇离合器的方法, 包括:
将所述嵌件 (1 ) 嵌铸在所述风扇固定盘的所述轴承座 (2) 内;
将所述轴承 (3 ) 压入所述嵌件内圆周面。
16、 如权利要求 15所述的电磁风扇离合器的方法, 还包括:
将螺栓 (37) 从所述风扇固定盘右侧穿过所述螺栓孔 (11 ) 和所述软磁铁 (10); 将螺帽 (38) 安装在所述螺栓 (37) 上。
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Publication number Priority date Publication date Assignee Title
CN1583328A (zh) * 2004-06-16 2005-02-23 成都邦普合金材料有限公司 硬质合金低压注射成型
JP2005048793A (ja) * 2003-07-29 2005-02-24 Usui Kokusai Sangyo Kaisha Ltd マグネット式ファンクラッチ装置
CN102003266A (zh) * 2010-12-07 2011-04-06 龙口中宇机械有限公司 一种汽车电磁风扇离合器
CN102080595A (zh) * 2011-01-14 2011-06-01 龙口中宇机械有限公司 一种利用吸合摩擦连接传动的汽车电磁风扇离合器
CN102384185A (zh) * 2011-10-08 2012-03-21 龙口市汽车风扇离合器厂 嵌件及其制造方法和包含嵌件的电磁离合器及其制造方法

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005048793A (ja) * 2003-07-29 2005-02-24 Usui Kokusai Sangyo Kaisha Ltd マグネット式ファンクラッチ装置
CN1583328A (zh) * 2004-06-16 2005-02-23 成都邦普合金材料有限公司 硬质合金低压注射成型
CN102003266A (zh) * 2010-12-07 2011-04-06 龙口中宇机械有限公司 一种汽车电磁风扇离合器
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