CN208089208U - A kind of electric rolling hang device of nearly mute operation - Google Patents

Abstract

A kind of electric rolling hang device of nearly mute operation, it is automatically turned off construction including outer casing, micro machine, pipe crimping, curtain/cord, secondary end-rack and its operational limit position of carrying, micro machine and secondary end-rack are fixed on outer casing both ends, curtain/cord is mounted on pipe crimping, it is plugged in pipe crimping one end from axis screw front end, further include thering is the main side frame for being fixed on outer casing, micro machine to be fixed on main side frame；And it is plugged in the main wheel of motor output shaft, integrated short axle and from wheel, from wheel and the loose grafting of main wheel, short axle front end is plugged in the pipe crimping other end；And the close facade of main side frame and secondary end-rack is embedded in by the positioning seat of sheath body, bearing split, short axle stage casing and wear joint bearing from axis screw rod leading portion.The prior art of the design based on electric projection screen/roller shutter gives system improving from the angle of noise control to overall structure specification and crucial local accuracy.

Description

A kind of electric rolling hang device of nearly mute operation

Technical field

The utility model is related to the noise reduction process of electric rolling, electric projection screen, i.e., a kind of nearly the electronic of mute operation is wrapping with 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.Secondary end-rack is lateral cage made of plate sheet welding (market screen generally uses) Or vertical grillage, equipped with bar, debugging bottom bar etc. from axis screw rod, pressing plate, microswitch, limit in cage or grillage, they Composition curtain/cord operational limit position is automatically turned off construction.Motor carbon steel folded plate made of punching press is fixed on outer Case (or back side panel of seperated case) one end, secondary end-rack are fixed on the other end of outer casing (or back side panel of seperated case), Pipe crimping is between motor and secondary end-rack, and (i.e. theirs is close for the slave axis screw front end on motor output shaft front end and secondary end-rack One end) respectively grafting pipe crimping one end.Motor output shaft directly drives pipe crimping to rotate forward or backwards, makes mounting on the outside of pipe crimping Curtain/cord decentralization or wound pack up.

In electric projection screen/roller shutter, other than answering quiet run as the motor in source of making an uproar substantially, still there is subsequent make an uproar Sound generates and amplification may.The concrete reason for generating follow-up noise can have very much, and base table, which likes, to be caused to export from motor Axis is to the central axis decentraction from each rotating member between axis screw rod, although the concentric difference of axis numerically all seems micro- It is small, but may will lead to noise consequence outstanding.Such as one such situation is：Curtain/cord and pipe crimping have certain weight Amount, the half of the weight are undertaken by motor output shaft (front end), the motor output shaft front end absolute presupposition location point hair in operating Raw denier deviates (sinking), then the adjacent gear piece in motor internal reduction gear set is not parallel so that may be originally quiet Running noise of motor increases, and such noise that increased is difficult to clear up, and with motor torque to pipe crimping conduct after will also be by again Amplification.

The noise reduction of electric projection screen/roller shutter is professional problem.Electric projection screen is market ripe, at suitable distance (such as 100cm), which usually can really be heard, runs noise (smaller), the extremely difficult degradation of noise more than the tail, it is more difficult to be given in scale volume production It is eliminated with unified.The structure and operation logic of electric rolling are identical to electric projection screen, when it is in usually more quiet administrative institution Office installs, and especially when it serves classroom classroom instruction, the noise superposition that roller shutter noise and multireel curtain are run simultaneously As protrusion phenomenon, the Product Experience of significant negative impact client.

Invention content

The utility model aim is to provide a kind of electric rolling hang device of nearly mute operation.

Present design：A kind of electric rolling hang device of nearly mute operation, including outer casing or seperated case, synchronization can Inverse motor, pipe crimping, curtain/cord, secondary end-rack, bar in slave axis screw rod that secondary end-rack is carried, pressing plate, microswitch, limit are adjusted Examination bottom bar composition curtain/cord operational limit position is automatically turned off construction, and motor and secondary end-rack are fixed on outer casing or fission The both ends of case back side panel, curtain/cord are mounted on the outside of pipe crimping, are plugged in pipe crimping one end from axis screw front end, also wrap It has included

It is fixed on the main side frame of outer casing or seperated case back side panel, motor is fixed on main side frame；

The main wheel of motor output shaft, integrated short axle are plugged in and from wheel, before wheel and the loose grafting of main wheel, short axle End is plugged in the pipe crimping other end；

1-2 positioning seat, positioning seat are the split bodies of sheath body, bearing, which is embedded in main side frame or/and secondary end The close facade or positioning seat of frame are embedded in the close facade of main side frame or/and secondary end-rack from the sleeve institute structure carried by bearing At, short axle stage casing or/and it is connected to bearing from axis screw rod leading portion.

Short axle is equipped at the bearing mouth face for being bordering on pipe crimping side prevents integrated short axle and from wheel to main wheel displacement For the annular groove of elastic Clip Reed merging.

In main side frame, secondary end-rack close facade, the buckle closure for preventing bearing displacement is fixed in the one or both sides of bearing Or/and sheet.

The motor operating torque of the design is transmitted：(forward or backwards) rotation of motor output shaft, drive are plugged in output The main wheel of axis rotates, and drives and is plugged in being rotated from wheel for main wheel, i.e., with the short axle rotation from the integrated connection of wheel, then by short axle The pipe crimping of front end grafting rotates, and drives leading portion to be plugged in the slave axis screw rod rotation of the pipe crimping other end, is bolted in the pressure from axis screw rod Plate moves linearly, until pressing plate lower part compresses the microswitch shut down from axis screw rod (left/right) end lower section, motor circuit quilt It disconnects, is just located at preset (up/down) extreme position along side under curtain/cord at this time.

The good effect of the design：The constructed main side frame for being fixed on pipe crimping one end, by motor, main wheel, integrated Short axle and from wheel, positioning seat orderly integrate, motor power transmit stationarity increase substantially；In main side, frame, secondary end-rack are close The positioning seat being put together by sheath body, bearing that facade is inlayed, it is more controllable more clearly to ensure that short axle, pipe crimping, from axis screw rod Three's axis is concentric；Main wheel power has blocked motor rigging error, output shaft side to the loose grafting pattern in being transmitted from wheel The harmful effect that pipe crimping is operated to deviation so that output shaft no longer undertakes pipe crimping and curtain/cord gravity, eliminates its original The disturbance that motor internal reduction gear set is precisely run existing for this.Existing skill of the design based on electric projection screen/roller shutter Art gives system improving from the angle of noise control to overall structure specification and crucial local accuracy.

Description of the drawings

Fig. 1 a are the overall structure pattern diagrams inside traditional electric projection screen, and Fig. 1 b are to be fixedly connected with motor in Fig. 1 a With the folded plate enlarged drawing of back side panel.

Fig. 2 a are present design interiors of products tactic pattern schematic diagrames, and Fig. 2 b-c are pipe crimping both ends in Fig. 2 a respectively The enlarged drawing of secondary end-rack, main side frame, Fig. 2 d-e are the fractionations of the main sides Fig. 2 c frame.

Fig. 3 a-b are to drive the power of pipe crimping rotation to transmit construction explosive view under different visual angles, and Fig. 3 c are main wheels in electricity Grafting installation diagram on machine output shaft, Fig. 3 d are main wheels, from the installation diagram of wheel, short axle and motor, and Fig. 3 e are to depend on main side frame Motor power transmit construction audio-visual picture, Fig. 3 f are integrated short axles and from wheel, and Fig. 3 g are shape of the loose grafting of main wheel from wheel State schematic diagram, Fig. 3 h are to show main wheel and the front plan view from the loose inserting state of wheel, and Fig. 3 i are one different from Fig. 3 f Body short axle and from wheel, Fig. 3 j are to be matched with main wheels of Fig. 3 i from wheel.

Fig. 4 a-b are a kind of positioning seat explosive view under different visual angles respectively, and Fig. 4 c are that the positioning seat under the visual angles Fig. 4 b is straight Figure is seen, Fig. 4 d-e are the buckle closure audio-visual picture of positioning seat under different visual angles respectively, and Fig. 4 f are the sheet prevented bearing and fallen off, Fig. 4 g It is the assembly audio-visual picture of buckle closure and positioning seat.

Fig. 5 a are a kind of compact imbeding installation diagram of positioning seat in main side frame (part), and Fig. 5 b are that the positions P-P are cutd open in Fig. 5 a Face figure, Fig. 5 c are that the simplification figure after bearing is removed in Fig. 5 b, and Fig. 5 d are the sectional views of buckle closure center, and Fig. 5 e are by figure The assembly relation for the buckle closure and positioning seat that P-P position profiles and buckle closure centre section are shown in 5a, Fig. 5 f be bearing with short axle, From the axial assembly relation schematic diagram of wheel.

Fig. 6 is the assembled state audio-visual picture in secondary end-rack from axis screw rod, (positioning seat) bearing, buckle closure.

Fig. 7 a are the main side frame part audio-visual pictures that inner vertical plate carries tube-in-tube structure certainly, and Fig. 7 b are bearings to being stood in the frame of main side The installation diagram of sleeve-board cylinder, Fig. 7 c are the P-P position profile figures of Fig. 7 b.

Fig. 8 a are the buckle closure, bearing, sheet expressed by section to the assembly method schematic diagram of main side frame inner vertical plate, figure 8b be integrated short axle and from wheel with main side frame inner vertical plate sleeve in bearing assembly state diagram, Fig. 8 c be buckle closure, sheet, The assembled state of structure shown in pipe crimping and Fig. 8 b illustrates (section) figure, Fig. 8 d are opposite Fig. 8 c when having a reversed sleeve buckle closure, The assembled state of structure shown in sheet, pipe crimping and Fig. 8 b illustrates (section) figure.

Specific implementation mode

Embodiment 1.In the existing electric projection screen in market before this, motor (2) and the generally separation of secondary end-rack are in case two End, referring to Fig. 1 a-b：Secondary end-rack is fixed on case back side panel (11) left end, folded plate (12) is fixed on case back side panel (11) right side End, motor (2) are fixed on folded plate (12), are pipe crimping (13) between secondary end-rack and folded plate (12).Equipped with from axis spiral shell in secondary end-rack Bar, debugging bottom bar etc. in bar (14), pressing plate, microswitch, limit, they form oneself of curtain/cord operational limit position Dynamic to shut down construction, wherein pipe crimping (13) one end from the front end grafting of axis screw rod (14), the front end of motor (2) output shaft is direct Pipe crimping (13) other end in grafting.90 ° of bendings of folded plate (12) come from punch process, mismachining tolerance less (general ± 2 ° it It is interior), but its corresponding motor output shaft torque transmission will lead to a certain amount of pipe crimping rotation noise.

Referring to Fig. 2 a and compares figure 2b, Fig. 6：The secondary end-rack (4) of the design is approximately identical to the secondary end-rack in Fig. 1 a, i.e., It is metal sheet stamping part through board-like stile made of argon arc welding, opposite riser is parallel, adjacent riser is vertical (by work Clamps welding is realized), bar, debugging bottom bar in slave axis screw rod (14) that secondary end-rack (4) is carried, pressing plate, microswitch, limit The construction that is automatically turned off of synthesized curtain/cord operational limit position is same as existing electric projection screen, referring to Fig. 1 a left ends and Fig. 2 is set up in from axis screw rod (14) between the head bore (41) and uropore (42) of secondary end-rack (4) parallel opposing surfaces.Shown in Fig. 2 c Main side frame (3) is fixed on case back side panel (11) right end (see Fig. 2 a), is pipe crimping between secondary end-rack (4) and main side frame (3) (13).Fig. 2 d-e are the fractionations of main side frame (3), and referring to Fig. 3 d, motor (2) is fixed on the outer vertical plate (31) of main side frame (3), defeated Shaft (21) enters region outer vertical plate (31) and inner vertical plate (32) across exit orifice (311).

Fig. 3 a-b are the explosive views that the power that the design under different visual angles drives pipe crimping to rotate transmits construction, it is by electricity Machine (2), main wheel (5) are formed from wheel (61), short axle (62) and lateral pin (22), and motor output shaft (21) and main wheel (5) carry respectively There is through hole (211,52), main wheel centre bore (51) tight fit grafting motor output shaft (21), lateral pin (22), which is worn, connects through hole (211,52), so position of the main wheel (5) on output shaft (21) is fully firm.With continued reference to Fig. 3 a-b and compares figure 3d：It is main There is protruded stigma (53) in wheel (5) front end, and corresponding notch (611) is equipped with from wheel (61) side, is that the short axle (62) of the cold pier part of carbon steel can It is integrated (it is fixed out of wheel front tube (612) that short axle (62) root segment can also be taken to glue insertion) with from the injection molding of wheel (61) sandwich, Main wheel protruded stigma (53) is enabled loosely to be plugged in the notch (611) from wheel (61).

Referring to Fig. 3 g-h and Fig. 3 d-e：Above-mentioned main wheel (5) and " loose grafting " from wheel (61), refer to main wheel protruded stigma (53) narrow in from wheel notch (611), i.e., protruded stigma (53) with lack empty (611) may be at non-touch patch inserting state (referring particularly to Fig. 3 h)；Main wheel (5) and " loose grafting " from wheel (61) also refer to：It is oncontacting patch between the close face of both vertical axis Hollow layer (hollow layer thickness about 1.5mm, referring particularly to Fig. 3 g and Fig. 3 d-e).

Cooperation shown in Fig. 3 i Fig. 3 g opposite with the fit system of Fig. 3 j has no essential difference, but for force analysis, figure The safety of 3i-j is more preferable.

Fig. 4 a-b are the explosive view that seat structure is positioned under different visual angles respectively, and positioning seat is by bearing (72) in sheath body (71) In it is tight it is chimeric obtain, comparison diagram 4a and Fig. 4 b are visible：The entrance (711) of plasticity sheath body (71) one end is larger, just for bearing (72) centre bore (712) of compact imbeding, the other end is smaller but cylindrical section section of significantly greater than short axle (62), i.e., in not interfering The short axle (62) that section is plugged in bearing (72) operates and the bearing (72) in assembly can be prevented to go out.By the sheath body of positioning seat (71) it is tightly inserted into the aperture (321) of main side frame inner vertical plate (32), side cap (713) sticker of sheath body (71) is together in inner vertical plate (32) (being illustrated referring particularly to the dotted line in Fig. 5 a), bearing (72) thickness at this time is strictly placed in the middle with respect to the thickness of inner vertical plate (32), Short axle (62) stage casing is located in bearing (72) centre bore.

Fig. 4 d-e are buckle closure (73) audio-visual picture of positioning seat under different visual angles respectively, and referring to Fig. 4 f, buckle closure (73) is to sheath body (71) and being adhesively fixed for inner vertical plate (32) more contributes to the firm of positioning seat state, also prevents bearing (72) from sheath body (71) possibility retracted (with reference to figure 5b-e).

Referring to Fig. 3 e and 5a：Motor output shaft wears outer vertical plate (31), main wheel (5) under inserting state and from wheel (61) position Between the outer vertical plate (31) and inner vertical plate (32) of main side frame (3), short axle (62) is worn inner vertical plate (32) since wheel (61) and is plugged in Pipe crimping (13) one end.The safe reliably totally tansitive of (pipe crimping and curtain/cord) weight that obvious bearing (72) is loaded in Inner vertical plate (32) is transferred to product case or case back side panel (11) by inner vertical plate (32), is then transferred to wall again.Phase For the bearing capacity of steel bearing (72), pipe crimping (13) and cord weight can be neglected, in the total life cycle of product Inner bearing (72) nothing needs to change.

Referring to Fig. 3 f, Fig. 3 i, Fig. 3 e and Fig. 5 f：When the good main side frame (3) of rigidity is complete in case back side panel (11) Fixed, motor (2) is completely fixed in main side frame outer vertical plate (31), and positioning seat is tight embedding in main side frame inner vertical plate (32) aperture (321) Enter fixation, short axle (62), from wheel (61), main wheel (5), motor output shaft (21) according to foregoing manner successively grafting, short axle at this time (62) stage casing has been located in bearing (72) centre bore；When from wheel front tube (612) port hold to post-axis circle mouth in (72) steel, Main wheel (5) and between the close face of wheel (61) vertical axis exist meet design requirement hollow layer when, short axle (62) is in phase It is bordering at the prosopyle close to bearing (72) of pipe crimping (13) side and is equipped with annular groove (621), elastic card reed is enabled to be caught in annular groove (621), Clip Reed is stopped by circle mouth in bearing (72) steel so that short axle (62), so that integrated with short axle (62) It cannot be slid from wheel (61) to main wheel (5) along axis, that is to say, that the imaginary space between wheel (61) and main wheel (5) is every always Be maintained, that is to say, that even if causing main wheel (5) a certain amount of deflection due to being installed motor (2), main wheel (5) and from The close face of wheel (61) vertical axis still will not directly offset and generate frictional resistance.In addition, since Clip Reed outer diameter is far small In buckle closure (73) centre bore, so the assembly of Clip Reed is not associated with the assembly of buckle closure (73).

When the head bore (41) of secondary end-rack (4) is also equipped with positioning seat, is worn from the leading portion of axis screw rod (14) and connect positioning seat bearing (72), the short axle (72) for being identical to main side frame (3) connects wearing for positioning seat bearing (72).Still anticipate as shown in Figure 1a：From axis screw rod (14) front end is plugged in pipe crimping (13) one end after wearing positioning seat bearing (72) centre bore, wears and connects from the other end of axis screw rod (14) The uropore (42) (be pierced by the uropore (42) of secondary end-rack (4) and axial position is also determined by Clip Reed) of secondary end-rack (4), referring to Fig. 6 (only visible bearing (72) in figure) and Fig. 2 b.

For better ensure that short axle (62), pipe crimping (13), from axis screw rod (14) three's axis high-precision it is concentric, in main side It is that frame (3), two groups of risers that secondary end-rack (4) is parallel by opposite face, adjacent surface is vertical form, as shown in Fig. 2 b and Fig. 2 c Under structure type, the head bore (41) of secondary end-rack (4) is specially required, uropore (42) place plate face is strictly perpendicular to secondary end-rack (4) plate face of fixed fitting case back side panel (11), same outer vertical plate (31), the inner vertical plate for specially requiring main side frame (3) (32) it is strictly perpendicular to the plate face of the fixed fitting case back side panel (11) of main side frame (3), while being strict with shell back side panel (11) With good bend performance, such as the aluminium alloy extrusions of specific structure.

For technological angle, the modular construction precision and assembly precision in this example are controllable.

Embodiment 2.Second of positioning seat is made of bearing (72) and sleeve (322), referring to Fig. 7 a-c：It is stood in the frame of main side Stamped sleeve (322) structure for obtaining part of plate (32), bearing (72) compact imbeding sleeve (322) is interior, sleeve (322) axis It is concentric with motor output shaft (21) axis.In conjunction with Fig. 3 e and Fig. 8 b-c as it can be seen that short axle (62) stage casing passes through in sleeve (322) Bearing (72), short axle (62) front end are plugged in one end of pipe crimping (13).So motor output shaft (21) rotates, grafting will be driven Rotated in the main wheel (5) of output shaft, drive slave wheel (61) rotation for being plugged in main wheel, i.e., with from taking turns integrated short axle (62) Rotation is rotated by the pipe crimping (13) of short axle (62) front end grafting, realizes falling or rising that (wound is in pipe crimping for cord/curtain (13) periphery).

Referring to Fig. 8 a and Fig. 8 c-d, the bearing (72) to prevent in product longtime running loosens, the main side in bearing both sides The one side of frame inner vertical plate (32) fixes (bonding) sheet (74), and another side fixes (bonding) buckle closure (73), sheet (74) and buckle closure (73) centre bore is respectively less than bearing (72) outer diameter, but is all higher than short axle (62) cross section, is more than from wheel (61) front tube (612) Outer diameter cross section reliably reaches and bearing (72) is prevented to deviate from sleeve (322) purpose, and does not influence short axle (62), turns from wheel (61) It is dynamic.

Remaining same example 1, repeats no more.

Also it is worth noting that：

1, in Fig. 3 a-b main wheel (5) and from wheel (61) construct, can also make different from Fig. 3 i-j some tool Body topographical variations, but their structure principle and the basic indifference of using effect, and no more than the hydrous water of Fig. 3 i-j structures It is accurate.

2, motor (2) non-corner cut as it can be seen that in Fig. 3 a-b is compared, the motor (2) in Fig. 3 c-e has cut one jiao.Because It may be for the group reload request of outer casing cross section, due also to may be that double-deck roller shutter product is (mutual indepedent in addition to case Run the two-component of monovolume curtain), motor (2) cuts one jiao or corner cut situation does not have using chance.

If 3, respectively setting 1 on main side frame facade close with secondary end-rack with 2 positioning seats in embodiment 1. If only there are one positioning seats, should be located on main side frame inner vertical plate (32), at this time from axis screw rod (14) in secondary end-rack (4) On carrying can still be handled such as original technology before this.In embodiment 1, main side frame (3), the positioning seat in secondary end-rack (4) are opposite Positive can assemble (chimeric) in inner vertical plate aperture (321), head bore (41), can also reverse-fitting (chimeric), the two use Effect is identical, and appearance is also without significant difference, referring to Fig. 5 e and Fig. 6.

4, opposite face is parallel shown in Fig. 2 c, Fig. 2 b, adjacent surface is vertical main side frame (3), secondary end-rack (4) it is board-like vertical Mount structure, intensity is good, the assembling for internal component of being more convenient for and after-sales service safeguard that (but existing market electric projection screen is usual Lateral cage construction can still be applied).

5, due to be mutually inserted main wheel (5), from wheel (61), there are appropriate gaps, when cord is by the people of non-normal use It pulls for reason and (plays as more active middle and elementary school student is laughed and frolick), irregular external force and to be not directly placed on motor defeated Shaft, but undertaken by short axle (62), from axis screw rod (14), be then conducted to main side frame (3), secondary end-rack (4), be conducted to cover Shell (back side panel (11)), final conduction are in wall.

6, herein referred " nearly mute operation " is meant that:In any direction at upper distance product 100cm, normal good hearing People can't hear the operation noise of electric projection screen/roller shutter product.

Claims (3)

1. a kind of electric rolling hang device of nearly mute operation, including outer casing or seperated case, synchronous reversible motor, pipe crimping, curtain Cloth/cord, secondary end-rack, bar, debugging bottom bar composition curtain in slave axis screw rod that secondary end-rack is carried, pressing plate, microswitch, limit/ Cord operational limit position is automatically turned off construction, and motor and secondary end-rack are fixed on the two of outer casing or seperated case back side panel End, curtain/cord are mounted on the outside of pipe crimping, are plugged in pipe crimping one end from axis screw front end, it is characterised in that further include having

It is fixed on the main side frame of outer casing or seperated case back side panel, motor is fixed on main side frame；

The main wheel of motor output shaft, integrated short axle are plugged in and from wheel, from wheel and the loose grafting of main wheel, the grafting of short axle front end In the pipe crimping other end；

1-2 positioning seat, positioning seat are the split bodies of sheath body, bearing, which is embedded in the phase of main side frame or/and secondary end-rack The close facade that nearly facade or positioning seat are embedded in main side frame or/and secondary end-rack by bearing is constituted from the sleeve carried, short axle Stage casing or/and it is connected to bearing from axis screw rod leading portion.

2. a kind of electric rolling hang device of nearly mute operation according to claim 1, it is characterized in that：Short axle is being bordering on pipe crimping It is equipped at the bearing mouth face of side and prevents integrated short axle and the annular groove being placed in for elastic Clip Reed from wheel to main wheel displacement.

3. a kind of electric rolling hang device of nearly mute operation according to claim 1, it is characterized in that：Frame, secondary end in main side On the close facade of frame, the buckle closure or/and sheet for preventing bearing displacement are fixed in the one or both sides of bearing.