CN2559829Y

CN2559829Y - Electric control clutch

Info

Publication number: CN2559829Y
Application number: CN 02242964
Authority: CN
Inventors: 邱林
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-07-12
Filing date: 2002-07-12
Publication date: 2003-07-09
Anticipated expiration: 2012-07-12

Abstract

The utility model relates to an electronically-controlled clutch which is applicable to a hoisting mechanism of an electrical lifting mosquito net and a electrical lifting curtain; the utility model mainly consists of a shell, a centre shaft and a driven sprocket, a drive sprocket, an electronically-controlled device, a braking gear, a spring, a hinge pin and a curb pin which are connected together in series in sequence on the centre shaft; the electronically-controlled device is provided with a plurality of schemes and manipulates the integration and the disintegration of the driven and the drive sprockets to control the integration and the disintegration; the utility model has the advantage of solving the problems that electrical lifting mechanisms at the background of the prior art have no brake, or that the braking devices consumes the motor power and are easily worn out and that manual parking is needed when landing the mosquito net.

Description

A kind of electric control clutch

Affiliated technical field

The utility model relates to a kind of electric control clutch, is applicable to the elevator mechanism of electric lifting/lowering mosquito net, also can be used for the electric lifting/lowering curtain.

Background technique

The elevator mechanism of existing known electric lifting/lowering mosquito net has a variety of, more representational have patent No. 96245927.5,88100560.6 number patent, 97245992.8 number patent, the elevator mechanism of latter two patents all is electronic, the common feature of these elevator mechanisms is to take turns the purpose that the halliard that is called " halliard " or " drag-line " of reeling reaches Mosquito net with height adjustable function with a strand cable that is called " strand cable wheel " or " wire-wound dish ", and its shortcoming is:

1. landing will rely on motor counter-rotating to disengage halliard to realize, the speed of its sinking speed and rise is identical, can not resemble and rely on the free-falling apace of conducting oneself with dignity first patent, people's WA can not minded the speed that mosquito net rises, and just feels inconvenience but will wait for just before going to bed that mosquito net slowly lands;

2. be the automatic stop device when lacking the braking device of flexibility and reliability and mosquito net and dropping to the end, the sponge that second patent is used to brake has also increased the load of motor when the performance braking action to the surface friction drag of wire-wound dish, itself also can very fast abrasion and is ineffective, the 3rd patent do not have arrestment mechanism fully, executes easily landing automatically after mosquito net rises.

The model utility content

The utility model purpose is exactly to improve above-mentioned electric lifting mechanism, realize that the electric lifting/lowering mosquito net lands fast in the mode of freely falling body, sinking speed is fast, motor and the running time of driving mechanism and the effect of reduction running speed of land automatic stopping and the each landing operation of shortening so that obtain, conveniently to use and to help reducing manufacture cost and improve working life.

For achieving the above object, the technical solution of the utility model is:

The manual driving device of the elevator mechanism of No. 96245927.5 patents is changed into by motor driving, between motor and strand cable wheel with a kind of specially designed electric control clutch as gearing down and braking device, the main parts size of this electric control clutch has housing, axis and order string are contained in the driven fluted disc on the axis, the active fluted disc, driven fluted disc can rotate on axis, initiatively fluted disc can rotate on axis and can be handled it by electric controller and move along the axis advance and retreat, driven fluted disc and initiatively between the fluted disc be two can the intermeshing annular flank of tooth, initiatively the dish edge of fluted disc has teeth and motor output gear engagement

Braking tooth, just position spring, hinge pin, position limit pin are housed in the housing, the braking tooth is hinged on housing by hinge pin and is subjected to the restriction of position limit pin around the swing of its hinge pin, Returnning spring hauls the braking tooth and remains on the position that is adjacent to position limit pin, protrudes into the between cog of the active fluted disc that meshes with driven fluted disc and limits its counter-rotating at this position braking tooth.

Above-mentioned electric controller is that continuation is gone here and there in proper order to put into and moved back screw rod and propelling spring on axis, and every screw, advance and retreat screw rod and fluted disc initiatively be coaxial to connect firmly and can rotate on axis and along being subjected to displacement every screw in the axis screw-in during housing had.

In order to make braking more reliable, can between driven fluted disc and active fluted disc, increase release spring and middle fluted disc.

Above-mentioned electric controller also can be on axis continuation go here and there in proper order the dress propelling spring, electromagnet and electromagnetic coil.

Above-mentioned clutch plays transferring power when elevator mechanism is done ascending motion, rise the effect of the counter-rotating prevented is arranged when stopping, when doing the landing motion strand cable wheel is separated with braking mechanism with motor and driving mechanism, make halliard can rely on the deadweight of account body to drag the counter-rotating fast of strand cable wheel.

The technical solution of the utility model is compared with the electric lifting mechanism in the background technique, and its advantage is:

1. solved the shortcoming that does not have braking or braking device to consume power of motor and easy wear out failure of the electric lifting mechanism existence of background technique;

2. solved the shortcoming that the electric lifting/lowering mosquito net landing of background technique will manually be stopped;

3. the sinking speed that improves the body of settling a debt or an account has shortened the running time of driving mechanism and motor again, because the account body rises the meeting automatic stopping, the operator need not to wait for that the ascending motion of account body finishes and can leave away, therefore the rise speed of lift can design lowlyer again, thereby reduces manufacture cost significantly and improve working life.

Description of drawings

Embodiment with accompanying drawing further specifies the technical solution of the utility model below.

Fig. 1 is the General Arrangement Drawing of the elevator mechanism of Mosquito net with height adjustable function;

Fig. 2 .1 is embodiment one a schematic representation;

Fig. 2 .2 is the A-A sectional view of Fig. 2 .1;

Fig. 2 .3 is the C-C sectional view of Fig. 2 .1;

Fig. 3 is embodiment one a circuit diagram;

Fig. 4 is embodiment two a schematic representation;

Fig. 5 .1 is embodiment three a schematic representation;

Fig. 5 .2 is the A-A sectional view of Fig. 5 .1;

Fig. 5 .3 is the B-B sectional view of Fig. 5 .1;

Fig. 6 is the circuit diagram that embodiment two, three uses the single phase alternating current reversible electric machine.

Embodiment

Among Fig. 1, Mosquito net with height adjustable function mainly is made up of account body 1, support 2, halliard 3, pulley 4, strand cable wheel 5, pulley 4 is installed on the support 2 of each towing point top that is positioned at the account body, strand cable wheel 5 is equipped with in arbitrary position in the support 2, the wheel rim of strand cable wheel 5 should have groove, bottom land has hole or the hook that links rope, and halliard 3 one ends are connected in the groove of

strand cable wheel

5, and 4 guiding are connected with the towing point of account body 1 downwards the other end through pulley.Its working principle is, when strand cable wheel 5 was driven in rotation, will reel halliard 3 go into reaches the purpose that promotes account body 1 in its groove, and strand cable wheel 5 halliard 3 that reverses is then disengaged and makes 1 landing of account body.

Embodiment one:

Among Fig. 2 .1, Fig. 2 .2, Fig. 2 .3, the main parts size of elevator mechanism has contact 10, driven gear 12 and the electric control clutch of halliard 3, pulley 4, strand cable wheel 5, motor 8, position limit switch 9, position limit switch, and the component of forming this electric control clutch have output gear 13, transmission shaft 22, driven fluted disc 23, axis 24, motor output gear 25, active fluted disc 26, spring 27, electromagnet 28, electromagnetic coil 29, housing 30, braking tooth 31, spring 32, hinge pin 33, position limit pin 34; Electric control clutch among the figure is in separated state, and output gear 13 also can be made of one with driven fluted disc 23 and omit transmission shaft 22; Output gear 13 can rotate on axis 24 with transmission shaft 22, driven fluted disc 23 coaxial connecting firmly also, driven fluted disc 23 and initiatively two faces between the fluted disc 26 have can the intermeshing ring-type flank of tooth, initiatively fluted disc 26 can rotate on axis 24 and along axis 24 displacements, its wheel rim has teeth, these teeth and gear 25 engagements; Braking tooth 31 be subjected to position limit pin 34 restriction and can be around the unidirectional swing of its hinge pin 33 pins, spring 32 hauls braking tooth 31 and remains on the position that is adjacent to position limit pin 34, protrudes into the between cog of fluted disc 26 initiatively and stops its counter-rotating at this position braking tooth 31.Its working principle is, when electromagnetic coil 29 no electric circuits, spring 27 is pushed active fluted disc 26 to driven fluted disc 23 and is meshed, the torque of motor can arrive gear 13 through active fluted disc 26, driven fluted disc 23 and transmission shaft 22 from gear 25 and outwards export, after the motor outage, braking tooth 31 heads on the tooth of active fluted disc 26 and prevents its counter-rotating and prevent counter-rotating, after electromagnetic coil 29 energisings, electromagnet 28 is inhaled active fluted disc 26 from driven fluted disc 23 and braking tooth 31, and driven fluted disc 23 and gear 13 can freely rotate;

In Fig. 3, the moving together contact S of switch 11 makes the power-on switch that motor 8 is just changeing, be called the rise shelves for making things convenient for preface to state, off position T is called park, the flexible moving together contact J that returns is called the landing shelves, operate the shelves contact J that can land for convenience and be set to the flexible moving together contact of returning, position limit switch 9 is connected on the prograde circuit of motor.

Embodiment one working principle is, throw over switch 11 rises the shelves conducting, motor 8 just changeing and the output gear 13 by clutch to driven gear 12 transmissions, 5 rotations synchronously of strand cable wheel with driven gear 12 coaxial connecting firmly, and then reach the purpose that promotes account body 1, contact 10 is run in 1 rise of account body opens circuit position limit switch 9, motor 8 stalls, and account body 1 rests on the position of parking; The conductings of switch 11 landing shelves, clutch separation then, the deadweight of account body drives 5 counter-rotatings of strand cable wheel descends account body 1 fast, and account body 1 promptly stops after dropping to the end automatically, and switch 11 is recovered back park T shelves, and clutch meshes again.

Embodiment two:

Among Fig. 4, the component of forming clutch have axis 24 and order string to be contained in driven fluted disc 23, active fluted disc 26, advance and retreat screw rod 39, the screw rod propelling spring 40 of axis 24, during housing 30 has every, in be separated with the screw 42 that cooperates with the screw rod 39 of advancing and retreat, braking tooth 31, braking tooth Returnning spring 32, braking tooth hinge pin 33, position limit pin 34 are arranged; Clutch is in separated state among the figure, driven fluted disc 23 is taken turns 5 coaxial connecting firmly also with strand cable and can be rotated on axis 24, initiatively coaxial the connecting firmly of fluted disc 26 and advance and retreat screw rod 39 also can be rotated on axis 24 and along axis 24 displacements, driven fluted disc 23 towards active fluted disc 26 one side the ring-type flank of tooth is arranged, the steep one side of its flank of tooth one side is the gentle slope; Initiatively fluted disc 26 towards the one side of driven fluted disc 23 have can with the ring-type flank of tooth of driven fluted disc engagement, its wheel rim has teeth, these teeth mesh with gear 25; There is thread the centre of advance and retreat screw rod 39, and two ends have length to be slightly larger than the smooth and round section of the screw length of screw 42; The working principle of this clutch is, gear 30 drove initiatively fluted disc 26 rotations when motor was just changeing, advance and retreat screw rod 39 transfers also screw in screw 42 and promote initiatively that fluted disc 26 moves to driven fluted disc 23 under the promotion of spring 40, last and driven fluted disc 23 engagements, at this moment the thread of screw rod 39 of advancing and retreat has screwed out screw 42 fully and has stopped moving, the moment of torsion of motor 8 passes to strand cable wheel 5 through active fluted disc 26 and driven fluted disc 23 from gear 25, during motor 8 stalls, braking tooth 31 withstands initiatively, and the tooth of fluted disc 26 can't reverse it, when motor 8 counter-rotatings, the thread of advance and retreat screw rod 39 oppositely screws in screw 42 and drives active fluted disc 26 and leaves driven fluted disc 29 until separating fully, promptly stop to move after the thread of advance and retreat screw rod 39 screws out shell screw 42, spring 40 is compressed.

Fig. 6 is the circuit diagram of present embodiment.

Embodiment two working principle is, throw over switch 11 rises shelves conductings, and motor 8 is just changeing and taking turns 5 transmissions by clutch to strand cable, and then reach the purpose that promotes account body 1, contact 10 is run in 1 rise of account body opens circuit position limit switch 9, motor 8 stalls, and account body 1 rests on the position of parking; Switch 11 landing grade conductings, then motor 8 counter-rotatings, clutch separation, the deadweight of account body drives 5 counter-rotatings of strand cable wheel descends account body 1 fast, after account body 1 begins to descend switch 11 is recovered back park, and account body 1 drops to lower dead center and promptly stops automatically.

Embodiment three:

Be driven counter-rotating smoothly and reduce braking tooth 31 and the abrasion of active fluted disc 26 in order to ensure braking effect and active fluted disc 26, can obtain the clutch shown in Fig. 5 .1, Fig. 5 .2, Fig. 5 .3 between driven fluted disc 23 and active fluted disc 26, adding spring 43 and middle fluted disc 44 on the basis of clutch shown in Figure 4, Fig. 5 .1 is the schematic representation that clutch is in separated state, Fig. 5 .2 is the schematic representation that clutch is in engagement, two faces between middle fluted disc 44 and the driven fluted disc 23 are all done the engageable annular flank of tooth, and profile of tooth will be done to such an extent that steeper is beneficial to braking; Two faces between middle fluted disc 44 and the active fluted disc 26 have all been done the intermeshing annular flank of tooth, and profile of tooth wants shallow and simultaneously steep one side is mild.The braking tooth 31 of Fig. 5 scheme can be by the flank of tooth jack-up of middle fluted disc 44, so braking force is very big, when motor 8 counter-rotatings, initiatively fluted disc 26 can produce thrusts promote in the middle of fluted disc 44 pressure springs 43 move to driven fluted disc 23 and fluted disc 26 can be reversed retreat, after initiatively fluted disc 26 left, spring 43 pushed away driven fluted disc 23 to middle fluted disc 44 again and reaches the purpose of separating with braking tooth 31; When motor just changeed, initiatively fluted disc 26 and middle fluted disc 44 can reach transmission and braking purpose with driven

fluted disc

23 and 31 engagements of braking tooth again under the promotion of advance and retreat screw rod 39.

Claims

1. electric control clutch, main parts size has housing (30), axis (24) and order string to be contained in driven fluted disc (23) on the axis (24), fluted disc (26) initiatively, driven fluted disc (23) can be gone up at axis (24) and rotate, initiatively fluted disc (26) can be gone up at axis (24) and rotate and can be handled it by electric controller and move along axis (24) advance and retreat, driven fluted disc (23) and initiatively between the fluted disc (26) be two can the intermeshing annular flank of tooth, initiatively the dish edge of fluted disc (26) has teeth and gear (25) engagement, it is characterized in that:

Braking tooth (31), spring (32), hinge pin (33), position limit pin (34) are housed in the housing (30), braking tooth (31) is associated in housing and is subjected to the restriction of position limit pin (34) around the swing of its hinge pin (33) by hinge pin (33) hinge, spring (32) hauls braking tooth (31) and remains on the position that is adjacent to position limit pin (34), protrudes into the between cog of the active fluted disc (26) that meshes with driven fluted disc (23) and limits its counter-rotating at this position braking tooth (31).

2. a kind of electric control clutch according to claim 1, it is characterized in that, described electric controller is to go up continuation at axis (24) to be equipped with advance and retreat screw rod (39) and propelling spring (40) in proper order, every screw (42), initiatively fluted disc (26) connected firmly and can go up at axis (24) and rotate and be subjected to displacement every screw (42) in axis (24) screws in advance and retreat screw rods (39) are coaxial during housing (30) had.

3. a kind of electric control clutch according to claim 2 is characterized in that, between driven fluted disc (23) and active fluted disc (26) release spring (43) and middle fluted disc (44) is arranged.

4. a kind of electric control clutch according to claim 1 is characterized in that, described electric controller is to go up continuation at axis (24) to be equipped with spring (27), electromagnet (28) and electromagnetic coil (29) in proper order.