CN202463801U - Brake air pump - Google Patents

Brake air pump Download PDF

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Publication number
CN202463801U
CN202463801U CN 201220010913 CN201220010913U CN202463801U CN 202463801 U CN202463801 U CN 202463801U CN 201220010913 CN201220010913 CN 201220010913 CN 201220010913 U CN201220010913 U CN 201220010913U CN 202463801 U CN202463801 U CN 202463801U
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CN
China
Prior art keywords
drive plate
air pump
transmission cylinder
driver blade
driving device
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Expired - Fee Related
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CN 201220010913
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Chinese (zh)
Inventor
王兆宇
邢子义
吕守卫
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LONGKOU ZHONGYU MACHINERY CO Ltd
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LONGKOU ZHONGYU MACHINERY CO Ltd
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Priority to CN 201220010913 priority Critical patent/CN202463801U/en
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Publication of CN202463801U publication Critical patent/CN202463801U/en
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Abstract

The utility model relates to an air pump device for a vehicle pneumatic brake system, aiming at providing an air pump which is simple in structure, safe and reliable, and can work under the condition of emergency power failure. The brake air pump comprises a transmission disc and an air pump rotating shaft, wherein the transmission disc is arranged on the air pump rotating shaft by a bearing; the brake air pump also comprises a first transmission device, a second transmission device and an electrical control device; the second transmission device is fixedly connected with the air pump rotating shaft; when the electrical control device is electrified, the electrical control device is used for driving the first transmission device so as to enable the second transmission device to be separated from the transmission disc; and when the electrical control device is in power failure, the electrical control device drives the first transmission device so as to enable the second transmission device to be jointed with the transmission disc. The brake air pump can guarantee the air pump to enter a working state during power failure, thus guaranteeing an automobile to be braked in the case of accidental power failure, and being safe and reliable.

Description

Brake compressor
Technical field
The utility model relates to a kind of vehicle and uses brake compressor, particularly relates to a kind of brake compressor of magnetic clutch Control work.
Background technology
At present, the electromagnetic fan clutch that uses on the automobile is that the water temperature according to driving engine changes the rotating speed of controlling fan, thereby makes automotive engine in operational process, keep optimum regime.Specifically be through the coil of control on the electromagnetic core the electric or outage adhesive that comes adhesive dish and drive plate on controlling magnet reaction plate or the fan fixed disk with separate; Thereby the rotating speed of fan on the control fan fixed disk reaches and makes fan give the driving engine cool effect with suitable rotating speed.
Existing electromagnetic fan clutch (is example with the three-speed electromagnetic fan clutch) is as shown in Figure 1; Comprise main shaft 1 ', drive plate 2 ', electromagnetic core 3 ', exterior loop 4a ', interior loop 4b ', fan fixed disk 9 ', magnet fixed disc 10 ', submissile reed 12 ', little adhesive dish 13 ', big spring sheet 34 ', big adhesive dish 35 ' and safety guard 36 '; The drive plate of wherein being processed by permeability magnetic material 2 ' is fixedly mounted on the main shaft 1 ' through semi-round key 19 '; The side of drive plate 2 ' is provided with some groups of magnet isolation tanks 23 '; The inner chamber of drive plate 2 ' is provided with electromagnetic core 3 '; Electromagnetic core 3 ' is installed on the main shaft 1 ' through bearing 5 '; Be respectively equipped with inside and outside coil embedding groove in the electromagnetic core 3 ', the magnetic conduction opening direction of inside and outside coil inserting slot is all identical with main shaft 1 ' axial direction and point to the side of drive plate 2 ', is provided with inside and outside coil 4b ', 4a ' with flat winding respectively in the inside and outside coil embedding groove; Fan fixed disk 9 ' is installed on the main shaft 1 ' through bearing 8 ', 11 ' respectively with magnet fixed disc 10 '; Wherein magnet fixed disc 10 ' is positioned at fan fixed disk 9 ' inner chamber, on a side end face of magnet fixed disc 10 ', is uniformly distributed with several fixed orifices along the circumference and is used for inlaying soft magnet 15 ', picks permanent magnet 14 ' on the soft magnet 15 '; Fan fixed disk 9 ' goes up on the corresponding end face with permanent magnet 14 ' and is inlaid with soft magnet 16 '; Magnet fixed disc 10 ' is gone up on the annular end face relative with interior loop 4b ' has little adhesive dish 13 ' through the 12 ' support and connection of submissile reed, through the 34 ' support and connection of big spring sheet big adhesive dish 35 ' is arranged on the annular end face relative with exterior loop 4a ' on the fan fixed disk 9 ', and large and small adhesive dish 13 ', 35 ' is all near the side of drive plate 2 '; With gapped between the corresponding end face of drive plate 2 '; Captive joint safety guard 36 ' on the circumferential position outside end face of fan fixed disk 9 ' offers locking hole on the safety guard 36 ', the circumferential position outside of drive plate 2 ' is gone up and the correspondence position of locking hole offers mating holes.
The concrete working process of above-mentioned three-speed electromagnetic fan clutch is: when engine temperature does not reach the low set temperature value (such as being made as 82 ℃) of three-speed electromagnetic fan clutch as yet; Inside and outside coil 4b ' in the electromagnetic core 3 ', 4a ' be no power all; The little adhesive dish 13 ' of drive plate 2 ' on can adhesive magnet fixed disc 10 '; The also big adhesive dish 35 ' on the not adhesive fan fixed disk 9 '; Fan fixed disk 9 ' is freely trackslipped through bearing 8 ', and magnet fixed disc 10 ' freely trackslips through bearing 11 '; When engine temperature reaches low set temperature value (82 ℃) and is lower than higher set temperature value (such as being made as 88 ℃); Interior loop 4b '; Make little adhesive dish 13 ' and drive plate 2 ' rotation synchronously by the little adhesive dish 13 ' of drive plate 2 ' adhesive because the magnetic effect of electromagnetic core 3 ' makes, little adhesive dish 13 ' drives magnet fixed disc 10 ' rotation at full speed through submissile reed 12 '; Be embedded in rotation relatively in the magnetic field that soft magnet 16 ' in the fan fixed disk 9 ' permanent magnet 14 ' in magnet fixed disc 10 ' and soft magnet 15 ' form; Cutting magnetic line, himself produces vortex flow, and vortex flow produces new magnetic field; Realize that under the effect of magnetic field force fan fixed disk 9 ' and magnet fixed disc 10 ' flexibly connect the middling speed rotation, play the effect of preliminary radiating and cooling; When engine temperature is elevated to higher temperature setting value (88 ℃); Exterior loop 4b '; Produce the suction-combining force, to drive plate 2 ', big adhesive dish 35 ' is with drive plate 2 ' rotation synchronously with big adhesive dish 35 ' adhesive; Big adhesive dish 35 ' drives fan fixed disk 9 ' rotation at full speed through big spring sheet 34 ', thereby plays the effect of powerful cooling.
But; Vehicle in the process of moving; If the electric power system catastrophic failure sudden power of electromagnetic fan clutch; Then inside and outside coil 4b ', 4a ' act on inefficacy, the energising of controlling inside and outside coil 4b ', 4a ' with regard to impassabitity this moment cut off the power supply control the fan blade on the fan fixed disk 9 ' rotating speed to have lowered the temperature to driving engine.Certainly; Usually the safety guard 36 ' that the urgent lock bolt that has in the original design structure of electromagnetic fan clutch and carry with car is used and corresponding locking hole, mating holes; After can breaking down in the electric power system of electromagnetic fan clutch, chaufeur stops as early as possible; Then urgent lock bolt is inserted in the locking hole and the mating holes on the drive plate 2 ' on the safety guard 36 ', so that fan fixed disk 9 ' and drive plate 2 ' rotation are synchronously rotated fan at full speed driving engine is lowered the temperature.If chaufeur learns that when driving electric power system breaks down, the back of can stopping uses urgent lock bolt that fan fixed disk 9 ' is fixing with drive plate 2 ', makes fan rotate cooling at full speed; Yet chaufeur often can't guarantee to learn failure condition in the very first time, thereby the urgent lock bolt of employing that can not in time stop, and the urgent lock bolt of installation that stops also bothers; Even chaufeur can be learnt the electric power system fault in the very first time; But the road conditions of automobile real-world operation are complicated and changeable; Chaufeur can not stop under some specific run environment, perhaps can't stop to take bolt locking measure at once, may therefore cause engine high-temperature to damage or even scraps; Under the serious situation even can therefore cause traffic accident, consequence is hardly imaginable.In addition, as shown in Figure 1, when ECT Engine Coolant Temperature is elevated to higher temperature setting value (88 ℃); In order to satisfy: exterior loop 4a ' can make electromagnetic core 3 ' have enough big magnetic after electric; Big adhesive dish 35 ' adhesive captiveing joint with fan fixed disk 9 ' is arrived on the drive plate 2 ', and can drive fan fixed disk 9 ' and drive plate 2 ' speed rotation together, just needs driving engine lasting electric power to be provided for exterior loop 4a '; So not only consumed more electric energy; And increased the loss of engine power, make the driving engine overload operation more that just is in the condition of high temperature originally, the service life of having reduced driving engine.
At present; The air pump device that is used for brake and drive system for vehicle with tow; In the vehicle ' process, be to utilize the energising of magnetic clutch or the work that air pump is controlled in outage, when the air pump internal pressure is lower than the required force value of brake system work (such as the 6-8 kilogram); The electric power system of magnetic clutch is given; The parts that utilize the suction-combining force of electromagnetic core will drive air pump rotating shaft running link to each other with pivoted pulley (belt pulley passes through engine drives), make air pump rotating shaft and belt pulley run-in synchronism, thereby reach the purpose that makes air pump in running order; When the air pump internal pressure meets or exceeds the required force value of brake system work (such as the 6-8 kilogram), the outage of the electric power system of magnetic clutch, the air pump rotating shaft separates with belt pulley, and air pump quits work.Yet, break down sudden outage if in the vehicle ' process, run into the electric power system of magnetic clutch; Perhaps other faults appear in magnetic clutch; The uncontrollable air pump work of magnetic clutch this moment so influences the effect performance of air pump, causes the brake system cisco unity malfunction; And then may bring a series of serious consequence, can not give safety control of chaufeur; Certainly, the safeguard construction that prevents that the air pump control system lost efficacy is installed also on the existing part vehicle, but the use of these safeguard constructions all needs parking, and manually launch anti-failure structure, thereby have certain limitation.
The utility model content
In order to solve the problems of the technologies described above, the utility model provide a kind of simple in structure, safe and reliable, can prevent to cause the out-of-action safety type air pump of air pump device because of magnetic clutch sudden failure in the driving process.
A kind of brake compressor of the utility model comprises drive plate; The air pump rotating shaft; Said drive plate passes through bearing installation in the air pump rotating shaft; Also comprise first driving device, second driving device and first electrical controller, said second driving device is captiveed joint with said air pump rotating shaft; When said first electrical controller gets when electric, said first electrical controller drives said first driving device makes said second driving device and said drive plate be separated; When first electrical controller cut off the power supply, said first electrical controller drives said first driving device made said second driving device engage with said drive plate.
The utility model difference from prior art is: the utility model brake compressor has increased safety device on the basis of existing air pump; I.e. first driving device and second driving device; Guarantee through control first electrical controller electric control the air pump rotating shaft and whether rotate with outage in; Reach following effect: when automobile in the process of moving; Brake compressor is during with the outage of the electric power system catastrophic failure of first electrical controller, and second driving device engages with drive plate, makes the power of drive plate pass through first driving device; Second driving device is passed to the air pump rotating shaft; Air pump rotating shaft rotation; Brake compressor can be worked when outage, and the transmission failure under the first electrical controller accident power-off situation guarantees that air pump got into mode of operation when magnetic clutch loses efficacy; Guarantee that brake system of car can normal brake application when accident is cut off the power supply, use more safe and reliable.And the present invention is designed to: when first electrical controller cut off the power supply, drive plate can be with transmission of power to the second driving device, thereby needn't expend the effect that too much electric energy just can reach transmission, has practiced thrift electric energy, has prolonged the life-span of electric power system and supply line.
A kind of brake compressor of the utility model, wherein said second driving device comprises transmission cylinder.Adopt transmission cylinder to carry out transmission, make processing simply, transmission is effective, and is easy for installation.
A kind of brake compressor of the utility model, wherein said first driving device comprises at least one driver blade.Between drive plate and transmission cylinder, adopt the driver blade structure; So that drive plate and transmission cylinder can be controlled driver blade with outage by getting of first electrical controller is electric; Motion through the control driver blade reaches the purpose that control transmission cylinder and the power of drive plate are separated or combine; And adopt driver blade simple as first driving device manufacturing processing, cost is low, and transmission is effective; Adopt at least one driver blade, make that in use other driver blades can continue to play the effect of transmission, have ensured the whole transmission effect of driver blade well in case driver blade lost efficacy or transmission effect when reducing.
A kind of brake compressor of the utility model, wherein the structure of the first driving device driver blade, the second driving device transmission cylinder and first electrical controller and position relation can adopt following two kinds of forms:
(1) a kind of brake compressor of the utility model, wherein said driver blade are three arc-like sheets, and the circumferential position outside of said drive plate is provided with three groups of projections, and said three driver blades are hinged on the complementary protuberance of said drive plate through bearing pin; Said transmission cylinder has the opposing end surface with said drive plate in the circumferential position outside of said drive plate, gapped between the opposing end surface of said driver blade and said transmission cylinder; Said first electrical controller comprises the electromagnet assembly of being made up of electromagnetic core and coil, and said electromagnet assembly is positioned at the inner chamber of the circumferential position place end face of said drive plate.Adopt three arc driver blades to be hinged on the drive plate circumferential position outside through bearing pin, install simply, transmission is effective, makes easy; Transmission cylinder is located at the certain interval position, the circumferential position outside of drive plate, makes that driver blade can compress transmission cylinder under centrifugal action when coil blackout, and transmission is effective, and cost is low; And utilize centnifugal force rather than supply with the effect that power reaches transmission specially, practiced thrift the energy.
(2) a kind of brake compressor of the utility model, wherein said driver blade are three arc-like sheets, and the circumferential position inboard of said drive plate is provided with three groups of projections, and said three driver blades are hinged on the complementary protuberance of said drive plate through bearing pin; Said transmission cylinder has the opposing end surface with said drive plate in the circumferential position inboard of said drive plate, gapped between the opposing end surface of said driver blade and said transmission cylinder; Said first electrical controller comprises permanent magnet and the electromagnet assembly of being made up of electromagnetic core and coil, and said permanent magnet is positioned at the inner chamber of said transmission cylinder, and said electromagnet assembly is positioned at the circumferential position outside of said drive plate; When said coil get said electromagnetic core when electric to the magnetic attraction of said driver blade greater than the magnetic attraction of said permanent magnet to said driver blade.Adopt permanent magnet and electromagnet assembly to control the motion of driver blade jointly as first electrical controller; And correspondingly driver blade is installed on the end face inboard, circumferential position place of drive plate; It is a kind of distortion to structure in above-mentioned (1); This structure also can realize initiatively making coil blackout or under coil accident power-off situation, can pass through transmission of power to the air pump rotating shaft with drive plate of the first driving device driver blade and the second driving device transmission cylinder; And the permanent magnet in the said structure is to utilize self proper property to play the adhesive effect and needn't expend the electric power that provides specially, has reduced power consumption, has practiced thrift the energy.
A kind of brake compressor of the utility model, the opposing end surface place with said transmission cylinder on the wherein said driver blade is fixedly connected with the arc friction lining.Be employed in the structure that connects friction lining on the driver blade, make that the transmission effect of driver blade is better, service life is longer.
Be described further below in conjunction with the brake compressor of accompanying drawing the utility model.
Description of drawings
Fig. 1 looks cutaway view for the master of three-speed electromagnetic fan clutch of the prior art;
Fig. 2 looks cutaway view for the master of embodiment one;
Fig. 3 is along the cutaway view of A-A line direction among Fig. 2;
Fig. 4 is the block diagram of the drive plate among the embodiment one;
Fig. 5 is the block diagram of the driver blade among the embodiment one;
Fig. 6 a and Fig. 6 b are the block diagram of the electromagnetic core among the embodiment one;
Fig. 7 is the right elevation that the drive plate among the embodiment one cooperates with driver blade;
Fig. 8 is that the B of Fig. 7 is to view.
Fig. 9 is the right elevation of the transmission cylinder among the embodiment one;
Figure 10 is along the cutaway view of C-C line direction among Fig. 9;
Figure 11 looks cutaway view for the master of embodiment two;
Figure 12 looks cutaway view for the master of embodiment three;
Figure 13 is along the cutaway view of D-D line direction among Figure 12;
Figure 14 is the block diagram of the drive plate among the embodiment three;
Figure 15 is the block diagram of the electromagnetic core among the embodiment three;
Figure 16 is the right elevation that the drive plate among the embodiment three cooperates with driver blade;
Figure 17 is that the E of Figure 16 is to view;
Figure 18 looks cutaway view for the master of embodiment four;
Figure 19 looks cutaway view for the master of embodiment five;
Figure 20 is along the cutaway view of F-F line direction among Figure 19;
Figure 21 is the right elevation that the drive plate among the embodiment five cooperates with driver blade;
Figure 22 is that the G of Figure 21 is to view;
Figure 23 looks cutaway view for the master of the transmission cylinder among the embodiment five;
Figure 24 is along the cutaway view of H-H line direction among Figure 23;
Figure 25 looks cutaway view for the master of embodiment six.
The specific embodiment
Being applied in electromagnetic fan clutch and the air pump on the automobile with the electromagnetic gear of being made up of drive plate, first driving device, second driving device and first electrical controller below is that example combines accompanying drawing to be elaborated; Manufacturing approach and control method to the equipment in each embodiment is illustrated simultaneously; Wherein embodiment one is applied to the embodiment in single speed, two speed, the three-speed electromagnetic fan clutch to three respectively for above-mentioned electromagnetic gear, and wherein first electrical controller and second electrical controller all include only electromagnetic core and coil; Embodiment four is to be example with the single speed electromagnetic fan clutch, first electrical controller is comprised the embodiment of electromagnetic core, coil and permanent magnet describes; Embodiment five, six is applied to the embodiment in the air pump for above-mentioned electromagnetic gear, and wherein first electrical controller among the embodiment five includes only electromagnetic core and coil, and first electrical controller among the embodiment six comprises electromagnetic core, coil and permanent magnet.
Embodiment one
As shown in Figure 2; A kind of electromagnetic gear comprises drive plate 102 (as shown in Figure 4), also comprises first driving device; Second driving device and first electrical controller; Like Fig. 3, Fig. 7, shown in Figure 8, wherein first driving device comprises that 106, three driver blades 106 of three driver blades are hinged on the projection 117 on drive plate 102 circumferential positions through bearing pin 124; Driver blade 106 be shaped as arc (as shown in Figure 5), the outside face of driver blade 106 is provided with one deck and is bonded in the arc friction lining 106a on the driver blade 106 through compacting; Second driving device is transmission cylinder 107 (like Fig. 9, shown in Figure 10), and transmission cylinder 107 has the opposing end surface with drive plate 102 in the circumferential position outside of drive plate 102, gapped between transmission cylinder 107 and the friction lining 106a; First electrical controller comprises the electromagnet assembly of being made up of electromagnetic core 103 and coil 104; Electromagnet assembly is positioned at drive plate 102 inner chambers; Wherein electromagnetic core 103 is installed on the transmission shaft 101 through second bearing 105, and electromagnetic core 103 is flexible coupling through fixedly sebific duct and engine body, and drive plate 102 and driver blade 106 are processed by permeability magnetic material; Like Fig. 2, shown in Figure 4, the circumferential position of drive plate 102 is provided with 6 groups of magnet isolation tanks 122.
Like Fig. 4, Fig. 7, shown in Figure 8; The circumferential position outside of drive plate 102 is provided with three projections 117; Be evenly distributed on the circumferential position of drive plate 102; Three driver blades 106 124 are hinged on three projections 117 through pinning, driver blade 106 can through pin 124 do away from or near the rotation of drive plate 102 circumferential positions.
Also comprise passive device; Passive device is a fan fixed disk 109; As shown in Figure 1, fan fixed disk 109 is installed on the transmission shaft 101 through clutch shaft bearing 108, in conjunction with Fig. 9, shown in Figure 10; Three groups of fixed plates 120 on transmission cylinder 107 1 ends are fixed on the fan fixed disk 109 through binding bolt 118; Drive plate 102 is fixedly mounted on the transmission shaft 101 through semi-round key 119, and electromagnetic core 103 is installed on the transmission shaft 101 through second bearing 105 at the inner chamber of drive plate 102, shown in Fig. 6 a, Fig. 6 b; Coil 104 is located in the coil embedding groove 103a that offers on the electromagnetic core 103, and the magnetic conduction opening direction of coil embedding groove 103a points to the circumferential position of drive plate 102.
When first electrical controller (coil 104) when electric; First electrical controller (electromagnetic core 103 with magnetic attraction) drives first driving device (outside face is bonded with the driver blade 106 of friction lining 106a) and makes second driving device (transmission cylinder 107) and the power of drive plate 102 be separated (driver blade 106 is pull-in on the end face outside, circumferential position place of drive plate 102, does not engage with transmission cylinder 107); When first electrical controller (coil 104) cut off the power supply, first electrical controller (electromagnetic core 103 that does not have magnetic attraction) drives first driving device (outside face is bonded with the driver blade 106 of friction lining 106a) made second driving device (transmission cylinder 107) engage (driver blade 106 that is hinged on the drive plate 102 compresses transmission cylinder 107 through friction lining 106a under centrifugal action) with the power of drive plate 102.
As shown in Figure 2, the concrete working process of a kind of electromagnetic gear of the utility model in the single speed electromagnetic fan clutch is following:
Behind the engine starting, 101 rotations of engine drives main shaft, main shaft 101 drives drive plate 102 rotation at full speed through semi-round key 119.
When ECT Engine Coolant Temperature does not reach 82 ℃ of first setting values of coolant-temperature switch 125 as yet; Coolant-temperature switch 125 controls make the circuit of coil 104 be in on-state; This moment, the radially adhesive magnetic field of electromagnetic core 103 generations firmly was pull-in on the driver blade 106 that is connected with friction lining 106a on the drive plate 102; Friction lining 106a and transmission cylinder 107 do not come in contact, and fan fixed disk 109 and coupled transmission cylinder 107 freely trackslip through clutch shaft bearing 108.
When water temperature is elevated to 82 ℃ of first setting values of coolant-temperature switch 125; The circuit of coil 104 is broken off in coolant-temperature switch 125 controls; Three driver blades 106 compress transmission cylinder 107 through friction lining 106a under action of centrifugal force; Transmission cylinder 107 and drive plate 102 are reached with the speed rotation, and transmission cylinder 107 drives the fan rotation on the fan fixed disk 109, reaches powerful cool effect; If automobile electric power system catastrophic failure in the process of moving causes coil 104 outages; Then electromagnetic core 103 do not have magnetic can three driver blades 106 of adhesive; Three driver blades 106 compress transmission cylinder 107 through friction lining 106a under centrifugal action reach with the speed rotation, to reach same powerful cooling-down effect transmission cylinder 107 and drive plate 102.
The utility model may further comprise the steps the manufacturing approach of above-mentioned electromagnetic gear (being applied in the single speed electromagnetic fan clutch): (a) cast drive plate 102 and carry out machine up, the circumferential position outside of drive plate 102 has three groups of projections 117; (b) casting first driving device, i.e. three arc driver blades 106, and carry out machine up; (c) casting second driving device, promptly transmission cylinder 107, and carry out machine up; (d) casting in first electrical controller electromagnetic core 103 and carry out machine up, coil 104 is loaded in the coil embedding groove 103a on the electromagnetic core 103 with flat winding; (e) drive plate 102 is installed on the transmission shaft 101 through semi-round key 119; Be hinged on three driver blades 106 on the complementary protuberance 117 of drive plate 102 through bearing pin 124; Electromagnetic core 103 is installed on the transmission shaft 101 through second bearing 105 and is positioned at the inner chamber of drive plate 102 circumferential positions places end face; Fan fixed disk 109 (passive device) is installed on the transmission shaft 101 through clutch shaft bearing 108; Utilize bolt to be installed on the fan fixed disk 109 through three groups of fixed plates 120 transmission cylinder 107; After installing, transmission cylinder 107 has the opposing end surface that belongs to the end face outside with drive plate 102 circumferential positions, and gapped between the opposing end surface of driver blade 106 and transmission cylinder 107, make after the installation:
When coil 104 when electric, electromagnetic core 103 is pull-in on driver blade 106 on the circumferential position outside end face of drive plate 102, makes transmission cylinder 107 and drive plate 102 be separated;
When coil 104 outages; Electromagnetic core 103 not adhesive driver blades 106; Driver blade 106 compresses transmission cylinder 107 under action of centrifugal force; Make transmission cylinder 107 engage, thereby make drive plate 102 drive fan fixed disk 109 and rotate through driver blade 106, transmission cylinder 107 through the power of driver blade 106 with drive plate 102.
A kind of control method of the utility model to above-mentioned electromagnetic gear (being applied in the single speed electromagnetic fan clutch), step comprises:
When ECT Engine Coolant Temperature is lower than 82 ℃ of first setting values, the circuit of temperature sensor 125 control closing coils 104, coil 104 electric, electromagnetic core 103 has magnetic;
When ECT Engine Coolant Temperature reached 82 ℃ of first setting values or continues to raise, the circuit of coil 104 was broken off in temperature sensor 125 controls, coil 104 outages, and electromagnetic core 103 does not have magnetic.
Embodiment two
Shown in figure 11; Under other structure unmodified prerequisites in the embodiment shown in Fig. 2-10 one; Two fast electromagnetic fan clutch in the present embodiment and the difference structure of embodiment one are: also comprise magnet fixed disc 210; Magnet fixed disc 210 is positioned at fan fixed disk 209 inner chambers, and is installed on the transmission shaft 201 through drive sleeve 233, and the opposing end surface position with fan fixed disk 209 on the magnet fixed disc 210 is inlaid with some first soft irons 215; Magnetic is adsorbed with permanent magnet 214 on first soft iron 215, is inlaid with second soft iron 216 at the correspondence position with permanent magnet 214 on the fan fixed disk 209.
Shown in figure 11, the concrete working process of a kind of electromagnetic gear of the utility model in two fast electromagnetic fan clutch is following:
Behind the engine starting, 201 rotations of engine drives main shaft, main shaft 201 drives drive plate 202 rotation at full speed through semi-round key 219, and main shaft 201 drives magnet fixed disc 210 rotation at full speed through drive sleeve 233 simultaneously.
When ECT Engine Coolant Temperature does not reach 82 ℃ of first setting values of coolant-temperature switch 225 as yet; Coolant-temperature switch 225 controls make the circuit of coil 204 be in on-state; Electromagnetic core 203 produce adhesive magnetic field radially three driver blades, the 206 firm adhesives that are connected with friction lining 206a to drive plate 202; Friction lining 206a and transmission cylinder 207 do not come in contact, thereby can not drive fan fixed disk 209 rotations; Meanwhile; The rotation relatively in the magnetic field of permanent magnet 214 and 215 formation of first soft iron of second soft iron 216, second soft iron, 216 cutting magnetic lines produce vortex flow, and vortex flow produces new magnetic field; Realize that under the effect of magnetic field force magnet fixed disc 210 drives fan fixed disk 209 differential transfers; That is: fan fixed disk 209 flexibly connects the middling speed rotation with magnet fixed disc 210, plays the effect of preliminary radiating and cooling, makes automotive engine keep suitable operating temperature.
When ECT Engine Coolant Temperature is elevated to 82 ℃ of first setting values of coolant-temperature switch 225; The circuit of coil 204 is broken off in coolant-temperature switch 225 controls; Three driver blades 206 compress transmission cylinder 207 through three friction lining 206a under action of centrifugal force; Transmission cylinder 207 and drive plate 202 are reached with the speed rotation, and transmission cylinder 207 drives the fan rotation on the fan fixed disk 209, reaches powerful cool effect; If automobile electric power system catastrophic failure in the process of moving causes coil 204 outages; Then since coil 204 outage electromagnetic cores 203 do not have magnetic can adhesive driver blade 206; Three driver blades 206 compress transmission cylinder 207 through three friction lining 206a under action of centrifugal force; Transmission cylinder 207 and drive plate 202 are reached with the speed rotation, and transmission cylinder 207 drives the fan rotation on the fan fixed disk 209, to reach same powerful cooling-down effect.
Identical with the corresponding construction among the embodiment one, 224 in the accompanying drawing 11 is bearing pin, and 205 is second bearing, and 208 is clutch shaft bearing, and 220 is the fixed plate on the transmission cylinder 201, and 222 is the magnet isolation tank of offering on drive plate 202 opposing end surfaces.
The position of permanent magnet 214, first soft iron 215 and second soft iron 216 on magnet fixed disc 210 and the fan fixed disk 209 is not limited to above-mentioned situation; As long as can reach through magnetic effect makes magnet fixed disc 210 drive fan fixed disk 209 transfers; Such as can first soft iron 215 being located on the fan fixed disk 209 with permanent magnet 214, second soft iron 216 is located on the magnet fixed disc 210.
The utility model is to the manufacturing approach of above-mentioned electromagnetic gear (being applied in the two fast electromagnetic fan clutch); Basic identical with the manufacturing approach among the embodiment one; Difference is: casting magnet fixed disc 210 also carries out machine up; Fan fixed disk 209 (passive device) is being installed before; At first magnet fixed disc 210 is fixedly mounted on the transmission shaft 201 through drive sleeve 233, is positioned at fan fixed disk 209 inner chambers, the end face that is inlaid with second soft iron 216 on the end face that is inlaid with first soft iron 215 and permanent magnet 214 on the magnet fixed disc 210 and the fan fixed disk 209 is corresponding.
A kind of control method to above-mentioned electromagnetic gear (being applied in the two fast electromagnetic fan clutch) of the utility model is identical with control method among the embodiment one.
Embodiment three
Shown in figure 12; Under other structure unmodified prerequisites in the embodiment shown in Figure 11 two; The difference structure of three-speed electromagnetic fan clutch in the present embodiment and embodiment one is: magnet fixed disc 310 holds 311 (drive sleeve 233 among the replacement embodiment two) through third axle and is installed on the drive plate 302; Offer inside and outside coil embedding groove 303a, 303b (shown in figure 15) on the electromagnetic core 303; Exterior loop 304a (first electrical controller; Effect is equal to the coil 204 among the embodiment two) be located in the exterior loop embedding groove 303a; The magnetic conduction opening direction of exterior loop embedding groove 303a points to the circumferential position of drive plate 302, and interior loop 304b (second electrical controller) is located in the interior loop embedding groove 303b, and the magnetic conduction opening direction of interior loop embedding groove 303b points to magnet fixed disc 310 vertically; Correspondence position with interior loop 304b on the magnet fixed disc 310 has little adhesive dish 313 through 312 support and connection of submissile reed, little adhesive dish 313 near drive plate 302 and with the corresponding end face of drive plate 302 between gapped.When interior loop 304b (second electrical controller) when electric; Electromagnetic core 303 produces axial magnetic suction; Electromagnetic core 303 through drive plate 302 with little adhesive dish 313 adhesives to drive plate 302; Make magnet fixed disc 310 engage with drive plate 302, the power of drive plate 302 directly is passed to magnet fixed disc 310.
Shown in figure 14; Magnet isolation tank 323 in the side of drive plate 302 offers 6 groups offers 6 groups of outer magnet isolation tanks 322 on the circumferential position place end face of drive plate 302, and is shown in figure 13; The outside face of driver blade 306 is provided with one deck and is bonded in the friction lining 306a on the driver blade 306 through compacting; Friction lining 306a has bigger friction coefficient can drive transmission cylinder 307 rotations, and the apparent surface with friction lining 306a on the transmission cylinder 307 does Wear-resistant Treatment, so that the transmission better effects if between friction lining 306a and the transmission cylinder 307; When exterior loop 304a cuts off the power supply; Driver blade 306 can compress transmission cylinder 307 through friction lining 306a under action of centrifugal force, and drives fan fixed disk 309 rotation at full speed through transmission cylinder 307, to reach to driving engine full speed cool effect.
Like Figure 16, shown in Figure 17, the circumferential position of drive plate 302 outside is provided with three projections 317, is evenly distributed on the circumferential position of drive plate 302, and three driver blades 306 324 are hinged on three projections 317 through pinning.
Shown in figure 12, the concrete working process of a kind of electromagnetic gear of the utility model in three-speed electromagnetic fan clutch is following:
Behind the engine starting, 301 rotations of engine drives main shaft, main shaft 301 drives drive plate 302 rotation at full speed through semi-round key 319.
When ECT Engine Coolant Temperature does not reach 82 ℃ of second setting values of coolant-temperature switch 325 as yet; Coolant-temperature switch 325 controls are given connection to external call and are enclosed the circuit of 304a; Electromagnetic core 303 produce adhesive magnetic field radially three driver blades, the 306 firm adhesives that are connected with friction lining 306a to drive plate 302, three friction lining 306a and transmission cylinder 307 do not come in contact, fan fixed disk 309 is freely trackslipped through clutch shaft bearing 308; Interior loop 304b keeps off-position; The little adhesive dish 313 of drive plate 302 not adhesives, drive plate 302 keeps the phase-separated state with magnet fixed disc 310, and magnet fixed disc 310 holds 311 through third axle and freely trackslips.
When ECT Engine Coolant Temperature is elevated to 82 ℃ of second setting values of coolant-temperature switch 325; The circuit of interior loop 304b is connected in coolant-temperature switch 325 controls; Electromagnetic core 303 produces axial the suction-combining force; To inhale and close dish 313 adhesives for a short time and to drive plate 302, rotate synchronously with drive plate 302, little adhesive dish 313 drives magnet fixed discs 310 rotations through submissile reed 312, and second soft iron 316 that is embedded in the fan fixed disk 307 rotates in the magnetic field of permanent magnet 314 and 315 formation of first soft iron relatively; Second soft iron, 316 cutting magnetic lines produce vortex flow; Vortex flow produces new magnetic field, realizes that under the effect of magnetic field force magnet fixed disc 310 drives fan fixed disk 309 differential transfers, that is: fan fixed disk 309 flexibly connects the middling speed rotation with magnet fixed disc 310; Play the effect of preliminary radiating and cooling, make automotive engine keep suitable operating temperature.
If ECT Engine Coolant Temperature continues to be elevated to 88 ℃ of the 3rd setting values of coolant-temperature switch 325; The power supply of exterior loop 304a is broken off in coolant-temperature switch 325 controls; Three driver blades 306 compress transmission cylinder 307 through three friction lining 306a under action of centrifugal force reach with the speed rotation transmission cylinder 307 and drive plate 302; Transmission cylinder 307 drives the fan rotation on the fan fixed disk 309, reaches powerful cool effect.
If automobile electric power system catastrophic failure in the process of moving causes exterior loop 304a outage; Then since exterior loop 304a outage electromagnetic core 303 do not have magnetic can adhesive driver blade 306; Three driver blades 306 compress transmission cylinder 307 through friction lining 306a under action of centrifugal force; Transmission cylinder 307 and drive plate 302 are reached with the speed rotation, to reach same powerful cooling-down effect.
Identical with the corresponding construction among the embodiment two, 305 in the accompanying drawing 12 is second bearing, and 320 is the fixed plate on the transmission cylinder 301.
Adopt said structure; Not only can realize three speed coolings; Guaranteed that also fan fixed disk can be rotated cooling under the burst powering-off state; Prevent engine temperature too high, this device can prevent in the prior art fan stall of losing efficacy and causing because of magnetic clutch, thereby more secure and reliable to use.
The utility model is to the manufacturing approach of above-mentioned electromagnetic gear (being applied in the three-speed electromagnetic fan clutch); Basic identical with the manufacturing approach among the embodiment two (wherein coil 204 roles among exterior loop 304a and the embodiment two are identical); Difference is: magnet fixed disc 310 holds 311 through third axle and is installed on the transmission shaft 301; Increased by second electrical controller (the interior loop 304b; Be located on the electromagnetic core 303), the correspondence position with interior loop 304b on the magnet fixed disc 310 has little adhesive dish 313 through 312 support and connection of submissile reed.
A kind of control method of the utility model to above-mentioned electromagnetic gear (being applied in the three-speed electromagnetic fan clutch), step comprises:
When ECT Engine Coolant Temperature is lower than 82 ℃ of second setting values; Temperature sensor 325 controls are given connection to external call and are enclosed the circuit of 304a; Control interior loop 304b simultaneously and keep off-position; The end face that points to drive plate 302 circumferential positions on the electromagnetic core 303 has magnetic, and the end face that points to little adhesive dish 313 does not have magnetic;
When ECT Engine Coolant Temperature is equal to or higher than 82 ℃ of second setting values and be lower than 88 ℃ of the 3rd setting values; Temperature sensor 325 control exterior loop 304a keep electricity condition; Controlling interior loop 304b simultaneously gets; The end face that points to drive plate 302 circumferential positions on the electromagnetic core 303 has magnetic, and the end face that points to little adhesive dish 313 also has magnetic;
When ECT Engine Coolant Temperature is equal to or higher than 88 ℃ of the 3rd setting values; Temperature sensor 325 control exterior loop 304a outage is controlled interior loop 304b simultaneously and is got electricly, and the end face that points to drive plate 302 circumferential positions on the electromagnetic core 303 does not have magnetic; Driver blade 306 compresses transmission cylinder 307 under centrifugal action; Drive fan fixed disk 309 rotation at full speed, this moment, no matter whether magnet fixed disc 310 rotated, and fan fixed disk 309 all can be rotated at full speed; Thereby this moment control interior loop 304b and get electric or when meeting the accident power-off situation, this driving device all can make fan fixed disk 309 rotation at full speed.
Embodiment four
Shown in figure 18; Under other structure unmodified prerequisites in the embodiment shown in Fig. 2-10 one; Single speed electromagnetic fan clutch in the present embodiment and the difference structure of embodiment one are: first electrical controller comprises permanent magnet 403c and the electromagnet assembly of being made up of electromagnetic core 403 and coil 404; Permanent magnet 403c is positioned at the inboard of transmission cylinder 407; The particular location of permanent magnet 403c is shown in figure 18 to be installed on the transmission shaft 401 through second bearing 405, and is positioned at the inner chamber of drive plate 402, and it is magnetic pole that permanent magnet 403c goes up the end face that points to drive plate 402 circumferential positions; Electromagnet assembly 403,404 is positioned at the outside of transmission cylinder 407, and electromagnetic core 403 is through fixedly sebific duct and engine body are flexible coupling; First driving device comprises three driver blades 406; Driver blade 406 is rotatably connected on the transmission cylinder 407 on the opposing end surface with drive plate 402; Driver blade 406 be shaped as arc; The inside face of driver blade 406 is provided with one deck and is bonded in the arc friction lining 406a on the driver blade 406 through compacting, but driver blade 406, transmission cylinder 407, drive plate 402 equal magnetic conductions, when coil 404 when electric the magnetic attraction of 403 pairs of driver blades 406 of electromagnetic core greater than the magnetic attraction of permanent magnet 403c to driver blade 406.
Shown in figure 18; Offer some groups of magnet isolation tanks 422 on the circumferential position place end face of drive plate 402; Also offer some groups of magnet isolation tank 407a on the opposing end surface of transmission cylinder 407; 420 is the fixed plate on the transmission cylinder 407, and 417 is the projection on the inner side end on the transmission cylinder 407, is used for through bearing pin 424 driver blade 406 being installed.
Shown in figure 18, the concrete working process of the electromagnetic gear of the utility model in the single speed electromagnetic fan clutch is following:
Behind the engine starting, 401 rotations of engine drives main shaft, main shaft 401 drives drive plate 402 rotation at full speed through semi-round key 419.
When ECT Engine Coolant Temperature does not reach 82 ℃ of first setting values of coolant-temperature switch 425 as yet; Coolant-temperature switch 425 controls make the circuit of coil 404 be in on-state; This moment coil 404 energized in the electromagnetic core 403; 403 pairs of electromagnetic cores are connected with the magnetic attraction of driver blade 406 of friction lining 406a greater than the magnetic attraction of permanent magnet 403c to corresponding driver blade 406; Thereby the driver blade 406 that is connected with friction lining 406a can firmly be pull-in on the inwall of transmission cylinder 407 under the force action of deflection electromagnetic core 403 sides; Driver blade 406 inboard friction lining 406a and drive plates 402 do not come in contact, and fan fixed disk 409 and coupled transmission cylinder 407 freely trackslip through clutch shaft bearing 408.
When water temperature is elevated to 82 ℃ of first setting values of coolant-temperature switch 425; The circuit of coil 404 is broken off in coolant-temperature switch 425 controls; 403 pairs of driver blades 406 of electromagnetic core this moment do not have magnetic attraction; Three driver blades 406 firmly are being pull-in under the effect of the magnetic field of permanent magnet 403c on the circumferential position outside end face of drive plate 402; Thereby make drive plate 402 drive transmission cylinder 407 rotations through three driver blades 406, transmission cylinder 407 drives the fan rotation on the fan fixed disk 409, reaches powerful cool effect.
If automobile electric power system catastrophic failure outage in the process of moving; Then because coil 404 outage electromagnetic cores 403 can three driver blades 406 of adhesive; Three driver blades 406 firmly are being pull-in under the effect of the magnetic field of permanent magnet 403c on the circumferential position outside end face of drive plate 402; The fan that makes drive plate 402 drive transmission cylinder 407 through three driver blades 406 and then drive on the fan fixed disk 409 rotates, to reach same powerful cooling-down effect.
Certainly; The particular location of permanent magnet 403c is not limited to second bearing 405 that passes through shown in Figure 18 and is installed on the transmission shaft 401; Also can permanent magnet 403c be embedded on the end face outside, circumferential position place of drive plate 402, perhaps directly adopt permanent magnet material to process drive plate 402.
In the present embodiment; First electrical controller in the single speed electromagnetic fan clutch comprises permanent magnet and the embodiment of the electromagnet assembly be made up of electromagnetic core and coil; Be equally applicable to two fast electromagnetic fan clutch and the three-speed electromagnetic fan clutch among the embodiment three among the embodiment two; When in two speed and three-speed electromagnetic fan clutch, adopting this embodiment, the remaining part that is connected with first electrical controller is structurally made adaptations.
The utility model is to the manufacturing approach of above-mentioned electromagnetic gear (being applied in the single speed electromagnetic fan clutch); Basic identical with the manufacturing approach among the embodiment one; Difference is: the opposing end surface inboard of transmission cylinder 407 has three groups of projections 417; Three driver blades 406 are hinged on through bearing pin 424 on the complementary protuberance 417 of transmission cylinder 407, gapped between the end face of the circumferential position of driver blade 406 and drive plate 402 outside; First electrical controller in the step (d) is permanent magnet 403c and the electromagnet assembly be made up of electromagnetic core 403 and coil 404; Permanent magnet 403c is installed on the transmission shaft 401 through bearing 405 and is positioned at the inner chamber of drive plate 402; Electromagnet assembly is located at outside the opposing end surface of transmission cylinder 407, electromagnetic core 403 is fixed on the motor body; When coil 404 when electric the magnetic attraction of 403 pairs of driver blades 406 of electromagnetic core greater than the magnetic attraction of permanent magnet 403c to driver blade 406.
A kind of control method to above-mentioned electromagnetic gear (being applied in the single speed electromagnetic fan clutch) of the utility model is identical with control method among the embodiment one.
Embodiment five
Shown in figure 19, a kind of electromagnetic gear comprises that (drive plate 502 is belt pulley to drive plate 502; By its rotation of engine drives); Also comprise first driving device, second driving device and first electrical controller, wherein first driving device comprises three driver blades 506; Shown in Figure 20-22; Three driver blades 506 are hinged on the circumferential position of drive plate 502 through bearing pin 524, driver blade 506 be shaped as arc, the outside face of driver blade 506 is provided with one deck and is bonded in the arc friction lining 506a on the driver blade 506 through compacting; Second driving device is transmission cylinder 507 (like Figure 23, shown in 24), and transmission cylinder 507 has the opposing end surface with drive plate 502 in the circumferential position outside of drive plate 502, gapped between the opposing end surface of transmission cylinder 507 and the friction lining 506a; First electrical controller comprises the electromagnet assembly of being made up of electromagnetic core 503 and coil 504, and electromagnet assembly is positioned at drive plate 502 inner chambers, and drive plate 502, driver blade 506 and transmission cylinder 507 are processed by permeability magnetic material.
Shown in figure 19, also comprise passive device, passive device is air pump rotating shaft 509; Drive plate 502 is installed in the air pump rotating shaft 509 through bearing 502a; Transmission cylinder 507 is fixedly mounted in the air pump rotating shaft 509 through semi-round key 519, and electromagnetic core 503 is fixed on the air pump housing 509a through binding bolt, offers the coil embedding groove on the electromagnetic core 503; Coil 504 is located in the coil embedding groove; The magnetic conduction opening direction of coil embedding groove and air pump rotating shaft 509 radially to disperse direction identical, the circumferential position place end face that points to drive plate 502 is inboard, offers 6 groups of magnet isolation tanks 522 facing to magnetic conduction opening direction place on the circumferential position place end face of drive plate 502; In conjunction with Figure 20, Figure 23, shown in 24, on the transmission cylinder 507 with drive plate 502 on the correspondence position of magnet isolation tank 522 be provided with 6 groups of magnet isolation tank 507a.
Like Figure 21, shown in 22, the circumferential position of drive plate 502 outside is hinged on the corresponding projection 517 along excircle respectively to an end that evenly is provided with 517, three driver blades 506 of three projections through pin; Apparent surface with driver blade 506 on the transmission cylinder 507 does Wear-resistant Treatment.
Shown in figure 19; When first electrical controller (coil 504) when electric; First electrical controller (electromagnetic core 503 with magnetic attraction) drives first driving device (being the driver blade 506 that outside face is bonded with friction lining 506a) and makes second driving device (being transmission cylinder 507) and the power of drive plate 502 be separated (driver blade 506 is pull-in on the circumferential position outside of drive plate 502, does not engage with transmission cylinder 507); When first electrical controller (coil 504) cut off the power supply, first electrical controller (electromagnetic core 503 that does not have magnetic attraction) drives first driving device (being the driver blade 506 that outside face is bonded with friction lining 506a) made second driving device (being transmission cylinder 507) engage (driver blade 506 compresses transmission cylinder 507 through friction lining 506a under centrifugal action) with the power of drive plate 502.
Shown in figure 19, the concrete working process of a kind of electromagnetic gear of the utility model in air pump is following:
Behind the engine starting, drive drive plate 502 (belt pulley) rotation, when the air pump internal pressure is equal to or higher than the 4th setting value 6-8 kilogram when normal operation (brake system can); Air pump need not work; This moment, pressure switch 525 control coils 504 must be electric, and to the end face of the drive plate 502 circumferential positions outside, friction material 506a does not contact with transmission cylinder 507 with driver blade 506 adhesives; Drive plate 502 can not be passed to air pump rotating shaft 509 through transmission cylinder 507 with power, and air pump is not worked.
When the air pump internal pressure is lower than the 4th setting value 6-8 kilogram (during the brake system cisco unity malfunction); Pressure switch 525 control coils 504 outages this moment; Driver blade 506 compresses transmission cylinder 507 under centrifugal action; Transmission cylinder 507 and drive plate 502 are rotated with speed, and transmission cylinder 507 drives air pump rotating shafts 509 rotations, makes air pump get into mode of operation.
When magnetic clutch when et out of order causes coil 504 sudden power when driving; Driver blade 506 is not attracted by electromagnetic core 503; Driver blade 506 compresses transmission cylinder 507 under centrifugal action; Transmission cylinder 507 and drive plate 502 are rotated synchronously, and transmission cylinder 507 drives air pump rotating shaft 509 rotations, makes that air pump still can normal operation under the burst powering-off state.
The utility model is to the manufacturing approach of above-mentioned electromagnetic gear (being applied in the air pump); Basic identical with the manufacturing approach among the embodiment one; Difference is: drive plate 502 is the belt pulley by engine drives, and passive device is air pump rotating shaft 509, and drive plate 502 is installed in the air pump rotating shaft 509 through bearing 502a; Transmission cylinder 507 is fixedly mounted in the air pump rotating shaft 509 through semi-round key 519, and electromagnetic core 503 is through being bolted on the air pump housing 509a.
A kind of control method of the utility model to above-mentioned electromagnetic gear (being applied in the air pump), step comprises:
When air pump pressure is lower than the 4th setting value 6-8 kilogram, the outage of pressure switch 525 control coils 504, drive plate 502 through driver blade 506 and transmission cylinder 507 with transmission of power to air pump rotating shaft 509, air pump work;
When air pump pressure is equal to or higher than the 4th setting value 6-8 kilogram; Pressure switch 525 control coils 504 get electric, and driver blade 506 is pull-in on the end face of the drive plate 502 circumferential positions outside, does not combine with transmission cylinder 507; Can not be with transmission of power to air pump rotating shaft 509, air pump is not worked.
Embodiment six
Shown in figure 25; Under other structure unmodified prerequisites in the embodiment shown in Figure 19-24 five; The difference structure of air pump in the present embodiment and embodiment five is: first electrical controller comprises permanent magnet 603c and the electromagnet assembly of being made up of electromagnetic core 603 and coil 604; Permanent magnet 603c is positioned at the inner chamber of transmission cylinder 607; And be fixed on the air pump shell 609a through binding bolt, electromagnet assembly is positioned at the drive plate 602 circumferential positions outside and through being bolted on the air pump shell 609a.
Shown in figure 25; First driving device comprises three driver blades 606; Driver blade 606 is hinged on the inboard projection 617 of drive plate 602 circumferential positions through bearing pin 624; Driver blade 606 is positioned on the opposing end surface of drive plate 602 and transmission cylinder 607; Driver blade 606 be shaped as arc, the inside face of driver blade 606 is provided with one deck and is bonded in the arc friction lining 606a on the driver blade 606 through compacting, and is gapped between the opposing end surface of friction lining 606a and transmission cylinder 607; On the drive plate between the opposing end surface of permanent magnet 603c and electromagnetic core 603 602 and transmission cylinder 607, all offer some groups of magnet isolation tanks 622 and 607a, when coil 604 when electric the magnetic attraction of 603 pairs of driver blades 606 of electromagnetic core greater than the magnetic attraction of permanent magnet 603c to driver blade 606.
Shown in figure 25, the concrete working process of the electromagnetic gear of the utility model in air pump is following:
Behind the engine starting; Drive drive plate 602 (belt pulley) rotation; When the air pump internal pressure is equal to or higher than the 4th setting value 6-8 kilogram when normal operation (brake system can), air pump need not work, pressure switch 625 control coils 604; Electromagnetic core 603 with driver blade 606 adhesives to the inner end surface of drive plate 602; The friction material 606a that be positioned on driver blade 606 inside faces this moment does not contact with transmission cylinder 607, and transmission cylinder 607 can not be with transmission of power to the air pump rotating shaft 609 of drive plate 602, and air pump is not worked.
When the air pump internal pressure is lower than the 4th setting value 6-8 kilogram (during the brake system cisco unity malfunction); This moment, the circuit of coil 604 was broken off in pressure switch 525 controls; 603 pairs of driver blades 606 of electromagnetic core do not have magnetic attraction; Three driver blades 606 are on the opposing end surface outside that firmly is pull-in on transmission cylinder 607 under the effect of the magnetic field of permanent magnet 603c; Thereby make drive plate 602 drive transmission cylinder 607 rotations through three driver blades 606, transmission cylinder 607 drives air pump rotating shaft 609 rotations, makes air pump get into mode of operation.
When the electric power system et out of order causes coil 604 sudden power when driving; Driver blade 606 is not attracted by electromagnetic core 603; Driver blade 606 firmly is pull-in on the outer wall of transmission cylinder 607 under the effect of the magnetic field of permanent magnet 603c; The friction lining 606a of driver blade 606 inside faces firmly compresses transmission cylinder 607; Make drive plate 602 transmission of power to transmission cylinder 607 and then drive air pump rotating shaft 609 rotated, thereby make air pump under the burst powering-off state, get into mode of operation, guarantee that vehicle can normal brake application under the burst powering-off state through driver blade 606.
Certainly; The particular location of permanent magnet 603c is not limited to the bearing 602a that passes through shown in Figure 25 and is installed in the air pump rotating shaft 609; Also can permanent magnet 603c be embedded on the opposing end surface outside of transmission cylinder 607, perhaps directly with processing with the opposing end surface employing permanent magnet material of driver blade 606 on the transmission cylinder 607.
The utility model is to the manufacturing approach of above-mentioned electromagnetic gear (being applied in the air pump); Basic identical with the manufacturing approach among the embodiment five; Difference is: driver blade 606 is hinged on the inner side end of drive plate 602 circumferential positions (among the embodiment five side end face on) outside; First electrical controller in the step (d) is permanent magnet 603c and the electromagnet assembly be made up of electromagnetic core 603 and coil 604; Permanent magnet 603c is sheathed on air pump rotating shaft 609 outer shrouds and through being bolted on the air pump housing 609a; Permanent magnet 603c is located at transmission cylinder 607 inner chambers, and electromagnet assembly is located at the opposing end surface outside of drive plate 602, with electromagnetic core 603 through being bolted on the air pump housing 509a; When coil 604 when electric the magnetic attraction of 603 pairs of driver blades 606 of electromagnetic core greater than the magnetic attraction of permanent magnet 603c to driver blade 606.
A kind of control method to above-mentioned electromagnetic gear (being applied in the air pump) of the utility model is identical with control method among the embodiment five.
In embodiment one to six, driver blade is not limited to three, more than one all can, the driver blade of varying number can be set, to guarantee the transmission best results according to the model of driving device etc.; Can connect friction lining on the driver blade increasing friction, better transmission also can be omitted friction lining and driver blade and transmission cylinder are carried out Wear-resistant Treatment; Driver blade is steel, iron or other conductive magneto-conductive materials; Friction lining is all-metal, asbestos or other high-abrasive materials.
The connection mode of friction lining and driver blade can be that the compacting in the foregoing description one to six is bonding, also can be bolted connection, riveted joint or other connection modes.
Above-described embodiment describes the preferred implementation of the utility model; Be not that scope to the utility model limits; Under the prerequisite that does not break away from the utility model design spirit; Various distortion and improvement that those of ordinary skills make the technical scheme of the utility model all should fall in the definite protection domain of the utility model claims.

Claims (6)

1. a brake compressor comprises drive plate (502; 602), the air pump rotating shaft (509; 609), said drive plate (502; 602) through bearing (502a; 602a) be installed in air pump rotating shaft (509; 609) on, it is characterized in that: also comprise first driving device (506; 606), second driving device (507; 607) and first electrical controller (503,504; 603,604), said second driving device (507; 607) with said air pump rotating shaft (509; 609) captive joint,
When said first electrical controller (504; 604) when electric, said first electrical controller (503; 603) drive said first driving device (506; 606) make said second driving device (507; 607) with said drive plate (502; 602) be separated;
When said first electrical controller (504; When 604) cutting off the power supply, said first electrical controller (503; 603) drive said first driving device (506; 606) make said second driving device (507; 607) with said drive plate (502; 602) engage.
2. brake compressor according to claim 1 is characterized in that: said second driving device comprises transmission cylinder (507; 607).
3. brake compressor according to claim 2 is characterized in that: said first driving device comprises at least one driver blade (506; 606).
4. brake compressor according to claim 3; It is characterized in that: said driver blade (506) is three arc-like sheets; The circumferential position outside of said drive plate (502) is provided with three groups of projections (517), and said three driver blades (506) are hinged on the complementary protuberance (517) of said drive plate (502) through bearing pin (524);
Said transmission cylinder (507) has the opposing end surface with said drive plate (502) in the circumferential position outside of said drive plate (502), gapped between the opposing end surface of said driver blade (506) and said transmission cylinder (507);
Said first electrical controller comprises the electromagnet assembly of being made up of electromagnetic core (503) and coil (504), and said electromagnet assembly is positioned at the inner chamber of the circumferential position place end face of said drive plate (502).
5. brake compressor according to claim 3; It is characterized in that: said driver blade (606) is three arc-like sheets; The circumferential position inboard of said drive plate (602) is provided with three groups of projections (617), and said three driver blades (606) are hinged on the complementary protuberance (617) of said drive plate (602) through bearing pin (624);
Said transmission cylinder (607) has the opposing end surface with said drive plate (602) in the circumferential position inboard of said drive plate (602), gapped between the opposing end surface of said driver blade (606) and said transmission cylinder (607);
Said first electrical controller comprises permanent magnet (603c) and the electromagnet assembly of being made up of electromagnetic core (603) and coil (604); Said permanent magnet (603c) is positioned at the inner chamber of said transmission cylinder (607), and said electromagnet assembly is positioned at the circumferential position outside of said drive plate (602);
When said coil (604) when electric said electromagnetic core (603) to the magnetic attraction of said driver blade (606) greater than the magnetic attraction of said permanent magnet (603c) to said driver blade (606).
6. according to claim 4 or 5 described brake compressors, it is characterized in that: said driver blade (506; 606) go up and said transmission cylinder (507; 607) opposing end surface place is fixedly connected with arc friction lining (506a; 606a).
CN 201220010913 2012-01-11 2012-01-11 Brake air pump Expired - Fee Related CN202463801U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102529933A (en) * 2012-01-11 2012-07-04 龙口中宇机械有限公司 Braking air pump, manufacture method for same and control method for same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102529933A (en) * 2012-01-11 2012-07-04 龙口中宇机械有限公司 Braking air pump, manufacture method for same and control method for same
CN102529933B (en) * 2012-01-11 2014-12-17 龙口中宇机械有限公司 Braking air pump, manufacture method for same and control method for same

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