CN208089197U - A kind of low noise electric rolling hang device - Google Patents

Abstract

A kind of low noise electric rolling hang device, including outer casing or seperated case, motor, pipe crimping, curtain/cord, secondary end-rack, motor and secondary end-rack separation are in the both ends of outer casing or seperated case back side panel, curtain/cord is mounted on the outside of pipe crimping, from the respective grafting pipe crimping one end in axis screw front end and motor output shaft front end, it further includes having the main side frame for being fixed on outer casing, motor is fixed in the frame of main side, positioning seat A or/and positioning seat B, side elevation in the frame of main side is embedded in by sheath body A and the positioning seat A of bearing split, side elevation in secondary end-rack is embedded in by sheath body B and the positioning seat B of bearing split, motor output shaft stage casing, it is worn respectively from axis screw rod leading portion and meets positioning seat A, the bearing of B.The motor output shaft of the design, pipe crimping keep concentric from axis screw rod three's axis, avoid the additional noise in addition to motor makes an uproar source and generate.

Description

A kind of low noise electric rolling hang device

Technical field

The utility model is related to electric rolling, the noise reduction process of screen, i.e., a kind of low noise electric rolling hang device.

Background technology

A kind of existing electric projection screen/roller blind device comprising outer casing, synchronous reversible micro machine are (hereinafter referred to as electric Machine), pipe crimping, curtain/cord, secondary end-rack etc..Secondary end-rack for lateral cage made of plate sheet welding, (generally adopt by market screen With) or vertical grillage, the automatic control system equipped with curtain/cord operational limit position, motor is made of punching press Carbon steel folded plate is fixed on outer casing the back side panel of case (or seperated) one end, and secondary end-rack is fixed on outer casing (or seperated case Back side panel) the other end, pipe crimping is between motor and secondary end-rack, before the slave axis screw rod on motor output shaft front end and secondary end-rack Respectively pipe crimping one end in grafting at end (i.e. their close one end).Motor output shaft directly drives pipe crimping to rotate forward or backwards, The curtain mounted on the outside of pipe crimping/cord decentralization or wound is set to pack up.

In existing electric projection screen/roller shutter, other than motor is the source of making an uproar, still there are other a variety of concrete reasons that can cause The generation and amplification of subsequent additional noise, such as one such situation are：Then bearing is worn from axis screw rod, the bearing compact imbeding In the secondary end-rack for being bordering on pipe crimping one end in side elevation " horn mouth ", " horn mouth " is portalled by blanking, extrusion stretching hole week is local The two times punch technique that cold plate is routed up is formed, due to the incomplete people that mold positioning accuracy, cold plate local material impurity etc. are random It is influenced for controllable factor, the axis of " horn mouth ", the motor output shaft axis of merging bearing axis and the product other end therein May the variant heart two-by-two, and be difficult to directly detect " horn mouth " axis based error numerical value, it is also difficult to correct the azimuth axis of bearing, Although the concentric difference of axis numerically all seems small, noise consequence outstanding may be caused.

Invention content

The utility model aim is to provide a kind of low noise electric rolling hang device.

Present design：A kind of low noise electric rolling hang device, including outer casing or seperated case, motor, pipe crimping, curtain/ In the both ends of outer casing or seperated case back side panel, curtain/cord is mounted on volume for cord, secondary end-rack, motor and secondary end-rack separation Further include having from the respective grafting pipe crimping one end in axis screw front end and motor output shaft front end on the outside of pipe

It is fixed on the main side frame of outer casing, motor is fixed in the frame of main side；

Positioning seat A or/and positioning seat B is embedded in side elevation in the frame of main side by sheath body A and the positioning seat A of bearing split, by Sheath body B and the positioning seat B of bearing split are embedded in side elevation in secondary end-rack；

The bearing for meeting positioning seat A, B is worn in motor output shaft stage casing from axis screw rod leading portion respectively.

Sheath body A, sheath body B bearing inlets end be fixed with and prevent the buckle closure that exits of bearing.

Motor operating torque in the design is transmitted：Motor output shaft (forward or backwards) rotates, and drive is socketed on output The pipe crimping of axis rotates, then the slave axis screw rod rotation for driving leading portion to be plugged in the pipe crimping other end, curtain/cord rise or fall.

The good effect of the design：The main side frame for being fixed on pipe crimping one end that the design is built by vertical plate face, reliably Improve the stationarity of motor power transmission；Blanking punched acquisition main side frame and secondary end-rack inboard aperture, moulding sheath body are tightly fitted into Interior side elevation through-hole, the standard component bearing compact imbeding moulding sheath body of main side frame and secondary end-rack, each link knot of above-mentioned technique Structure precision is clear artificial controllable；It is embedded in the positioning seat of main side frame interior side elevation close with secondary end-rack, convenient for motor output shaft, volume It manages, is concentric from axis screw rod three's axis, conducive to the generation for avoiding the additional noise other than motor.

Description of the drawings

Fig. 1 a are the overall structure pattern diagrams inside traditional electric projection screen, and Fig. 1 b are after being fixedly connected with case in Fig. 1 a The folded plate enlarged drawing of side plate and motor.

Fig. 2 a are electric rolling/screen internal structure pattern diagrams of the design, and Fig. 2 b are motor audio-visual pictures, and Fig. 2 c are The main side frame enlarged drawing of Fig. 2 a right ends.

Fig. 3 a-b are the positioning seat B explosive views under different visual angles respectively, and Fig. 3 c are that the positioning seat B under the visual angles Fig. 3 b is intuitive Figure, Fig. 3 d-e are the audio-visual picture and central cross-sectional view of buckle closure respectively, and Fig. 3 f are the assembly audio-visual pictures of buckle closure and positioning seat B, figure 3g is the assembly relation audio-visual picture of the slave axis screw rod and positioning seat B in secondary end-rack, and Fig. 3 h are the slave axis screw rods (part) in Fig. 3 g With positioning seat B, the assembly relation sectional view of buckle closure.

Fig. 4 a are the interior side elevation audio-visual pictures of the part of main side frame shown in Fig. 2 c, and Fig. 4 b are the audio-visual pictures of sheath body A, and Fig. 4 c are axis The assembly method audio-visual picture of sheath body A is honoured, Fig. 4 d are bearing, sheath body A and the main side frame expressed by P-P position profiles in Fig. 4 c Interior side elevation assembly relation schematic diagram, Fig. 4 e are the assembly relation schematic diagrames (section) of buckle closure and 4d structures, Fig. 4 f be motor with The assembly relations of Fig. 4 e structures illustrates (section) figure, and Fig. 4 g are that motor, sheath body A, (bearing), buckle closure are assemblied in the intuitive of main side frame Figure, Fig. 4 h, which are opposite Fig. 4 d, has that bearing, sheath body A and motor when reversed sleeve, side elevation assembly relation is illustrated in the frame of main side Figure.

Fig. 5 is the cross-sectional view of the aluminium section bar fission case back side panel with good bend performance.

Specific implementation mode

Embodiment.In electric projection screen/roller shutter, motor (13) and secondary end-rack (3) are generally separately fixed at product both ends, join See Fig. 1 a-b：It is pipe crimping (12) between left side pair end-rack (3) and right side folded plate (14), before the slave axis screw rod (32) of secondary end-rack carrying Hold grafting pipe crimping (12) one end, direct grafting pipe crimping (12) other end in motor output shaft (131) front end.

Motor (13) is fixed on the interior side elevation (21) of main side frame (2).Referring to Fig. 2 a, Fig. 2 c：The main side frame (2) of the design For the vertical plate type frame being welded, the riser of opposite face is mutually parallel, the riser of adjacent surface is mutually perpendicular to (high-precision Weld and obtain in frock clamp), the interior side elevation (21) and its middle through-hole (211) of carbon steel material are obtained by punching press, shape ruler Very little and punching position is accurate (similar main side frame (2) molding of secondary end-rack (3) in the design).

Referring to Fig. 4 a-g：Positioning seat A is put together by sheath body A (4) and bearing (61).Sheath body A (4) is moulding, wherein Sky is for bearing (61) compact imbeding in portion, side elevation (21) through-hole (211) in the periphery compact imbeding of central structure, remaining big facial planes Side elevation (21) in fitting, the central axis of bearing (61) are strictly perpendicular to interior side elevation (21), that is, are plugged on bearing comprehensively (61) axis of the motor output shaft (131) in is strictly perpendicular to interior side elevation (21).

Referring to Fig. 4 b-e:After bearing (61) is packed into sheath body A (4), sheath body A (4) aperture of bearing (61) side is less than bearing (61) outer diameter, bearing (61) will not be deviate from side since then, and under product longtime running situation, bearing (61) is only from sheath body A's (4) The possibility of bearing (61) arrival end abjection.The buckle closure (62) for enabling Fig. 3 d-e (audio-visual picture and center section plan of buckle closure (62)) show It is fixed on bearing (61) arrival end of (4) sheath body A, buckle closure (62) center bore is less than bearing (61) outer diameter, it is ensured that bearing (61) stablize the designated position in sheath body A (4).On the other hand, either buckle closure (62) centre bore of bearing (61) entrance side Sheath body A (4) aperture of diameter or bearing (61) other side, is all higher than motor output shaft (131) transversal face diameter, i.e., does not interfere and wear It is connected to the rotation of the motor output shaft (131) of bearing (61).

Positioning seat B is synthesized by sheath body B (5), bearing (61), and Fig. 3 a-b are the explosive view of positioning seat B under different visual angles respectively. It is visible in comparison diagram 3a and Fig. 3 b：The entrance of (plasticity) sheath body B (5) one end is larger tight embedding for steel standard component bearing (61) Enter, the centre bore of the other end is smaller but is significantly greater than from the cylindrical section section of axis screw rod (32), i.e., does not interfere from axis screw rod (32) Leading portion is plugged on the operating in bearing (61), and the bearing (61) in assembly can be prevented to go out.

Referring to Fig. 2 a and Fig. 3 g-h：Sheath body B (5) large mouth end is enabled tightly to be inserted into secondary end-rack (3) interior facade through-hole (311), this When sheath body B (5) in bearing (61) thickness relative inner facade (31) thickness it is strictly placed in the middle.Buckle closure (62) is enabled to be fixed on sheath body again Bearing (61) arrival end of B (5) avoids the possibility that bearing (61) under special circumstances is exited from sheath body B (5).It is above-mentioned In structure, either sheath body B (5) aperture of buckle closure (62) center bore of bearing (61) side or bearing (61) other side, It is all higher than from axis screw rod (32) transversal face diameter, i.e., does not interfere pipe crimping (12) that the slave axis screw rod (32) for being connected to bearing (61) is driven to turn It is dynamic.It is especially visible in Fig. 3 h：Buckle closure (62) more contributes to position to sheath body B (5) and being adhesively fixed for interior side elevation (31) Seat B (5) location status consolidates.

So far it is apparent that the half of pipe crimping (12) and curtain/cord weight from axis screw rod (32) by passing to bearing (61), the secondary end-rack (3) of steel is passed to again；The other half of pipe crimping (12) and curtain/cord weight are by motor output shaft (131) the main side frame (2) for passing to bearing (61), passing to steel again；Main side frame (2), secondary end-rack (3) gravity is conducted again in The wall of product is installed.Wherein, for the bearing capacity of opposite steel bearing (61), pipe crimping (12) and cord weight can be ignored Disregard, is needed to change in total life cycle inner bearing (61) nothing of product.

Especially it again should be stressed that be：In the interior side elevation through-hole (211) of sheath body A (4) compact imbeding main side frame (2), sheath body B (5) under the premise of the interior side elevation through-hole (311) of compact imbeding pair end-rack (3), bearing (61) compact imbeding sheath body A, sheath body B, bearing (61) thickness relative inner facade (21,31) is stringent placed in the middle so that in the gravity that it is carried by reliable delivery in main side frame (2), during secondary end-rack (3), not the case A (4) of damage plasticity, case B (5).

To better ensure that motor output shaft (131), pipe crimping (12), three's axis is concentric from axis screw rod (32), in main side Under the structure type that frame (2), two groups of risers that secondary end-rack (3) is parallel by opposite face, adjacent surface is vertical form, special requirement Being fixed with main side frame (2), the product case of secondary end-rack (3) or seperated case back side panel (11) has good bend performance, Such as the aluminium alloy extrusions of specific structure (referring to Fig. 5).

Also it is worth noting that：

1, secondary end-rack (3) is equipped with bar, debugging bottom bar etc. from axis screw rod (32), pressing plate, microswitch, limit, they Composition curtain/cord operational limit position is automatically turned off construction.Wherein, when motor (13) drives pipe crimping (12) rotation, pipe crimping (12) it drives front end to be plugged in slave axis screw rod (32) rotation of pipe crimping (12) other end, is bolted in from the pressing plate of axis screw rod (32) and makees Linear movement, until pressing plate lower part compresses the microswitch shut down from axis screw rod (left/right) end lower section, motor circuit is disconnected, Just it is located at preset (up/down) extreme position along side under curtain/cord at this time.

2, sheath body A (4) middle (center) bearings can be identical or different with the internal diameter of sheath body B (5) middle (center) bearing.

3, the sheath body A in Fig. 4 h has reversed meaning with respect to the sheath body A (4) in Fig. 4 d, but still can apply, according to motor (13) the fixed of mouth face and interior side elevation (21) needs, and can add middle part between them and have being identical to buckle closure (62) centre bore Gasket (63).

Claims (2)

1. a kind of low noise electric rolling hang device, including outer casing or seperated case, motor, pipe crimping, curtain/cord, secondary end-rack, electricity Machine and secondary end-rack separation are in the both ends of outer casing or seperated case back side panel, and curtain/cord is mounted on the outside of pipe crimping, from axis screw rod Respective grafting pipe crimping one end in front end and motor output shaft front end, it is characterised in that further include having

It is fixed on the main side frame of outer casing, motor is fixed in the frame of main side；

Positioning seat A or/and positioning seat B is embedded in side elevation in the frame of main side, by sheath body by sheath body A and the positioning seat A of bearing split B and the positioning seat B of bearing split are embedded in side elevation in secondary end-rack；

The bearing for meeting positioning seat A, B is worn in motor output shaft stage casing from axis screw rod leading portion respectively.

2. a kind of low noise electric rolling hang device according to claim 1, it is characterized in that：The bearing inlets of sheath body A, sheath body B End, which is fixed with, prevents the buckle closure that bearing exits.