CN116937886A - Transmission mechanism and rotary driving device - Google Patents
Transmission mechanism and rotary driving device Download PDFInfo
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- CN116937886A CN116937886A CN202310905054.1A CN202310905054A CN116937886A CN 116937886 A CN116937886 A CN 116937886A CN 202310905054 A CN202310905054 A CN 202310905054A CN 116937886 A CN116937886 A CN 116937886A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 83
- 230000007246 mechanism Effects 0.000 title claims abstract description 37
- 238000013016 damping Methods 0.000 claims description 25
- 230000002093 peripheral effect Effects 0.000 claims description 8
- 238000010276 construction Methods 0.000 claims 2
- 230000009347 mechanical transmission Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 14
- 230000001360 synchronised effect Effects 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003028 elevating effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The invention discloses a transmission mechanism and a rotary driving device, and relates to the technical field of mechanical transmission. In the rotary driving device, the driving piece comprises a driving shell and a driving shaft which can rotate relative to the driving shell; the first connecting end of the transmission piece is fixed on the driving shaft, the second connecting end of the transmission piece is fixed on the driving shell, so that the driving shaft drives the first connecting end to move, and the second connecting end drives the driving shell to move; the first rotating shaft and the second rotating shaft are sequentially arranged along the axial direction, the first rotating shaft is connected to the second connecting end, and the second rotating shaft is connected to the driving shell. When the rotary driving device is used, the load is connected to the first rotating shaft and the second rotating shaft, after the driving piece is started, the driving shaft drives the first connecting end of the driving piece to move, the second connecting end of the driving piece moves and can drive the driving shell of the driving piece to move through the internal transmission of the driving piece, so that the first rotating shaft and the second rotating shaft rotate, the force transmission of one driving piece to the two rotating shafts is realized, the load can be stably driven, the space occupation ratio of the rotary driving device is reduced, and the use cost is reduced.
Description
Technical Field
The invention relates to the technical field of mechanical transmission, in particular to a transmission mechanism and a rotary driving device.
Background
One of the prior art transmission mechanisms includes a rotary drive device and a mechanism for connecting a load to drive the load to move. The rotary driving device comprises a rotating shaft, a transmission piece and a driving piece, wherein a structure for connecting loads is arranged on the rotating shaft, when the rotary driving device operates, a driving shell of the driving piece is fixed, a driving shaft drives the transmission piece, power is transmitted to the rotating shaft through the transmission piece, power is transmitted through the rotating shaft, and therefore the loads are driven to rotate.
For some rotary driving devices applied to driving mechanisms such as curtain lifting mechanisms and the like, because the areas of loads such as curtains and the like are large, a plurality of rotary driving devices are usually required to be arranged to support the loads at different positions in the axial direction, so that the contact area between the loads and a rotating shaft is increased, lifting stability is ensured, a plurality of driving pieces are correspondingly required to be arranged, and the space occupation ratio of equipment and the use cost are increased.
Therefore, how to reduce the space occupation ratio of the rotary driving device and reduce the use cost while ensuring stable driving load is a technical problem that needs to be solved by those skilled in the art at present.
Disclosure of Invention
In view of the above, the present invention provides a transmission mechanism and a rotary driving device thereof, which can reduce the space occupation ratio of the rotary driving device and reduce the use cost.
In order to achieve the above purpose, the present invention provides the following technical solutions:
a rotary driving device comprises a driving piece, a transmission piece, a first rotating shaft and a second rotating shaft; the driving piece comprises a driving shell and a driving shaft which can rotate relative to the driving shell; the first connecting end of the transmission piece is fixed on the driving shaft, the second connecting end of the transmission piece is fixed on the driving shell, so that the driving shell is driven to move by the driving shaft and then is driven to move by the second connecting end; the first rotating shaft and the second rotating shaft are sequentially arranged along the axial direction, the first rotating shaft is connected with the second connecting end, and the second rotating shaft is connected with the driving shell.
Preferably, the rotary driving device further comprises a first fixing seat, wherein the first fixing seat is exposed out of the rotary driving device; the transmission part is a planetary gear transmission assembly and comprises an output shaft, a sun gear and an internal tooth shell which are connected into a whole in a transmission way, wherein the output shaft is fixed on the first fixing seat, the sun gear is fixedly connected with the driving shaft, and the internal tooth shell is fixedly connected with the driving shell.
Preferably, the first rotating shaft is of a hollow annular structure; an arc-shaped first chute is formed in the first fixing seat, a first sliding block is arranged at one axial end of the first rotating shaft and is connected to the first chute in a sliding manner so as to guide the rotation of the first rotating shaft, and the other axial end of the first rotating shaft is fixedly connected to the inner tooth shell; the output shaft is axially inserted into the first rotating shaft and is fixedly inserted into the first fixing seat.
Preferably, the first rotating shaft is of a hollow annular structure; the output shaft is axially inserted into the first rotating shaft, and a damping sleeve is arranged between the output shaft and the first rotating shaft.
Preferably, the device further comprises a supporting seat, one end of the first rotating shaft in the axial direction is sleeved outside one end of the inner tooth shell in the axial direction, and the supporting seat is radially supported between the first rotating shaft and the inner tooth shell.
Preferably, an arc-shaped first chute is arranged on the first fixing seat, a first sliding block is arranged at one end of the first rotating shaft in the axial direction, and the first sliding block is slidably connected with the first chute so as to guide the rotation of the first rotating shaft
Preferably, the device further comprises a rotary shell, wherein the rotary shell is sleeved outside the second connecting end and the driving shell; the two ends of the rotary shell in the axial direction are respectively clamped and fixed with the first rotating shaft and the second rotating shaft so as to synchronously rotate.
Preferably, the device further comprises a connecting piece, wherein two ends of the connecting piece in the axial direction are respectively inserted and connected with the driving shell and the second rotating shaft so as to synchronously rotate; the outer peripheral surface of the connecting piece is fixedly inserted with the inner peripheral surface of the rotary shell in a plugging manner so as to synchronously rotate.
Preferably, a supporting damping sleeve is arranged between the driving shell and the rotating shell.
Preferably, the rotary driving device further comprises a second fixing seat, the second fixing seat is exposed out of the rotary driving device, a second sliding block is arranged at one end, far away from the rotary shell, of the second rotary shaft in the axial direction, an arc-shaped second sliding groove is formed in the second fixing seat, and the second sliding block is connected to the second sliding groove in a sliding mode so as to guide the rotation of the second rotary shaft.
The transmission mechanism comprises the rotary driving device, wherein a first curtain fixing structure is arranged on the first rotating shaft, and a second curtain fixing structure is arranged on the second rotating shaft.
The invention provides a rotary driving device, which comprises a driving piece, a transmission piece, a first rotating shaft and a second rotating shaft, wherein the driving piece is arranged on the first rotating shaft; the driving piece comprises a driving shell and a driving shaft which can rotate relative to the driving shell; the first connecting end of the transmission piece is fixed on the driving shaft, the second connecting end of the transmission piece is fixed on the driving shell, so that the driving shaft drives the first connecting end to move, and the second connecting end drives the driving shell to move; the first rotating shaft and the second rotating shaft are sequentially arranged along the axial direction, the first rotating shaft is connected to the second connecting end, and the second rotating shaft is connected to the driving shell.
When the device is used, a load can be connected to the first rotating shaft and the second rotating shaft, after the driving piece is started, the driving shaft drives the first connecting end of the driving piece to move, the second connecting end of the driving piece moves and can drive the driving shell of the driving piece to move through the internal transmission of the driving piece, so that the first rotating shaft and the second rotating shaft are both rotated, the load is driven to rotate, the force transmission of one driving piece to the two rotating shafts is realized, the stable driving load is ensured, the setting of the quantity of the driving pieces can be reduced, the space occupation ratio of the rotary driving device is reduced, and the use cost is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a transmission mechanism with a rotary driving device according to a first embodiment of the present invention;
FIG. 2 is a cross-sectional view of a first embodiment of a transmission mechanism with a rotary drive device provided by the present invention;
FIG. 3 is a block diagram of a transmission mechanism with a rotary drive device according to an embodiment of the present invention at a junction of a transmission member and a drive member;
FIG. 4 is a partial block diagram of a transmission mechanism with a rotary drive device according to an embodiment of the present invention after hiding the rotary casing;
FIG. 5 is a block diagram of an output shaft of a first embodiment of a transmission mechanism with a rotary drive device provided by the present invention;
FIG. 6 is a block diagram of a first mounting base of a first embodiment of a transmission mechanism with a rotary driving device according to the present invention;
FIG. 7 is a first perspective view of a first shaft of a first embodiment of a transmission mechanism with a rotary driving device according to the present invention;
FIG. 8 is a diagram showing a second view angle of the first shaft of the first embodiment of the transmission mechanism with a rotation driving device according to the present invention;
FIG. 9 is a block diagram illustrating the assembly of a first shaft and an output shaft of a first embodiment of a transmission mechanism with a rotary driving device according to the present invention;
FIG. 10 is a block diagram of a damping sleeve according to a first embodiment of a transmission mechanism with a rotary drive device provided by the present invention;
FIG. 11 is a block diagram of a supporting seat of a first embodiment of a transmission mechanism with a rotation driving device according to the present invention
FIG. 12 is a schematic view of an output shaft outer side connection structure of a first embodiment of a transmission mechanism with a rotary driving device according to the present invention;
FIG. 13 is a diagram showing the assembly of a first shaft, a plastic ring, and a driving member of a first embodiment of a driving mechanism with a rotation driving device according to the present invention;
FIG. 14 is a block diagram of a rotary housing of a first embodiment of a transmission mechanism with a rotary drive device provided by the present invention;
FIG. 15 is a first view of a second shaft of a first embodiment of a transmission mechanism with a rotary driving device according to the present invention;
FIG. 16 is a diagram showing a second perspective view of a second shaft of a first embodiment of a transmission mechanism with a rotary driving device according to the present invention;
FIG. 17 is a block diagram of a first embodiment of a coupling member of a transmission mechanism with a rotary drive device according to the present invention;
FIG. 18 is a block diagram illustrating the assembly of a coupling member and a drive housing of a first embodiment of a transmission mechanism with a rotary drive device according to the present invention;
FIG. 19 is a first perspective view of a second mounting base of a first embodiment of a transmission mechanism with a rotary driving device according to the present invention;
fig. 20 is a second view angle structure diagram of a second fixing base of a first embodiment of a transmission mechanism with a rotation driving device provided by the present invention.
Reference numerals:
a sleeve 1;
the first rotating shaft 2, a first rotating shaft clamping groove 21, a first rotating shaft protrusion 22, a first sliding block 23 and a first curtain fixing structure 24;
the second rotating shaft 3, the second rotating shaft clamping groove 31, the second sliding block 32 and the second curtain fixing structure 33;
a driving member 4, a driving shaft 41, and a driving housing 42;
a transmission member 5, an internal gear housing 51, an output shaft 52, a sun gear 53;
the first fixing seat 6, the rotation limiting hole 61 and the first sliding groove 62;
the second fixing seat 7 and the second chute 71;
the rotating housing 8, the first housing block 81, the second housing block 82;
a connecting member 9, a harness collecting groove 91, a bar-shaped grain 92, a connecting protrusion 93, and a connecting groove 94;
supporting the damping sleeve 10;
a support base 11, a support base protrusion 111;
a seal ring 12;
damping sleeve 13, damping sleeve bulge 131;
a first bearing 14;
a second bearing 15;
a plastic ring 16, a plastic ring groove 161.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention provides a transmission mechanism and a rotary driving device thereof, which can reduce the space occupation ratio of the rotary driving device and reduce the use cost.
In a first embodiment, referring to fig. 1 to 20, the rotation driving device provided by the present invention includes a driving member 4, a transmission member 5, a first rotating shaft 2 and a second rotating shaft 3.
The driving member 4 includes a driving housing 42 and a driving shaft 41 rotatable with respect to the driving housing 42. Alternatively, the driving member 4 may be a motor, but is not limited to a motor, and may be powered by a terminal wire connected to the connection port.
The first connecting end of the transmission piece 5 is fixed on the driving shaft 41, the second connecting end is fixed on the driving shell 42, so that the first connecting end is driven to move through the driving shaft 41, the first connecting end drives the second connecting end to move through transmission in the transmission piece 5, and then the driving shell 42 is driven to move through the second connecting end. The rotating speeds of the first connecting end and the second connecting end are different. As shown in fig. 2 to 4, the second connecting end is fixed to the drive housing 42, in particular screw-fixable, and the first connecting end is plug-connectable to the drive shaft 41 and is driven by means of a gear arrangement. The transmission member 5 is in particular a gear transmission assembly.
The first rotating shaft 2 and the second rotating shaft 3 are sequentially arranged along the axial direction, the first rotating shaft 2 is connected to the second connecting end, and the second rotating shaft 3 is connected to the driving shell 42. The first rotating shaft 2 and the second rotating shaft 3 can be respectively connected with a load.
When the device is applied, a load can be connected to the first rotating shaft 2 and the second rotating shaft 3, after the driving piece 4 is started, the driving shaft 41 drives the first connecting end of the driving piece 5 to move, the second connecting end of the driving piece 5 moves and can drive the driving shell 42 of the driving piece 4 to move through the internal transmission of the driving piece 5, so that the first rotating shaft 2 and the second rotating shaft 3 rotate, the load is driven to rotate, the force transmission of one driving piece 4 to two rotating shafts is realized, the stable driving of the load is ensured, the setting of the number of the driving pieces 4 can be reduced, the space occupation ratio of a rotary driving device is reduced, and the use cost is reduced.
Further, referring to fig. 2, 5 and 6, the rotary driving device further includes a first fixing base 6, and the first fixing base 6 is exposed to the rotary driving device, so that the first fixing base 6 can be directly and fixedly connected with a set position in space. The transmission part 5 is a planetary gear transmission component, has a compact structure and a larger transmission ratio, and is stable in transmission. Of course, in other embodiments, the transmission member 5 may be other forms of gear transmission assemblies or other transmission structures.
The transmission member 5 includes an output shaft 52, a sun gear 53 and an internal gear housing 51, which are connected in a driving manner, wherein the output shaft 52 is fixed to the first fixing base 6, the sun gear 53 is fixedly connected to the driving shaft 41, and the internal gear housing 51 is fixedly connected to the driving housing 42. That is, the first connection end of the transmission member 5 is the sun gear 53, and the second connection end is the internal gear housing 51. In use, in the transmission 5, the output shaft 52 is fixed by the first fixed seat 6, held stationary, the sun gear 53 is the driving member, and the internal tooth casing 51 is the driven member. Alternatively, the transmission 5 is a single-stage transmission or a multi-stage transmission.
Further, as shown in fig. 2 and 7 to 10, the first rotating shaft 2 has a hollow ring structure. In the axial direction, one end of the first rotary shaft 2 is rotatably connected to the first fixing seat 6, in particular via a first bearing 14, and the other end is fixedly connected to an internal tooth housing 51, for example a plug connection. The output shaft 52 axially passes through the first rotating shaft 2 and is inserted and fixed in the first fixing seat 6, so that the rotating stability of the first rotating shaft 2 is improved through the first fixing seat 6.
In addition, an arc-shaped first chute 62 can be arranged on the first fixing seat 6, a first sliding block 23 is arranged at one axial end of the first rotating shaft 2, and the first sliding block 23 is slidably connected with the first chute 62 so as to guide the rotation of the first rotating shaft 2 and improve the stability of the rotation.
Optionally, as shown in fig. 5 and fig. 6, a rotation limiting hole 61 is provided in the first fixing seat 6, and the output shaft 52 is inserted into the rotation limiting hole 61 to limit rotation of the output shaft 52. Specifically, one end of the output shaft 52 is provided with a flat structure, and is flat-connected with the rotation limiting hole 61. In other embodiments, the rotation limiting aperture 61, the output shaft 52 may also include a prismatic structure adapted to achieve rotation limiting. In addition, to further improve the fixing reliability, the output shaft 52 and the first fixing base 6 may be screwed, so as to ensure that the output shaft 52 remains stationary when the driving member 4 is driven.
Further, as shown in fig. 2 and 10, a damping sleeve 13 is disposed between the output shaft 52 and the first shaft 2, optionally, the damping sleeve 13 is sleeved outside the output shaft 52, a damping sleeve protrusion 131 is disposed outside the damping sleeve 13, and the damping sleeve protrusion 131 is in plug-in fit with a damping sleeve groove on the first shaft 2 along the axial direction, so as to realize synchronous rotation of the first shaft 2 and the damping sleeve 13. In addition, the damping sleeve 13 and the output shaft 52 may be pressed against each other to generate friction force, thereby providing damping force to the rotating first shaft 2. When being applied to drive mechanism such as curtain elevating system, the curtain is the load, and damping sleeve 13 can provide damping force, can curtain elevating system behind the closing power, and the curtain can not descend downwards under the effect of gravity.
Further, as shown in fig. 11 and 12, the rotation driving device further includes a support seat 11, specifically, a ring structure. One end of the first rotating shaft 2 in the axial direction is sleeved outside one end of the inner tooth shell 51 in the axial direction, and the supporting seat 11 is radially supported between the first rotating shaft 2 and the inner tooth shell 51, so that the reliability of radial positioning between the transmission piece 5 and the first rotating shaft 2 is improved. Specifically, a supporting seat groove is formed on the inner circumferential surface of the first rotating shaft 2, a supporting seat protrusion 111 is formed on the outer circumferential surface of the supporting seat 11, and the supporting seat groove and the supporting seat protrusion are connected by being inserted along the axial direction, so that the supporting seat 11 and the first rotating shaft 2 can synchronously rotate.
Further, as shown in fig. 2 and 12, a sealing ring 12 is further provided between the first rotating shaft 2 and the output shaft 52, so that grease inside the gear box can be prevented from entering the first rotating shaft 2. Optionally, in the axial direction, the damping sleeve 13 abuts between the sealing ring 12 and the support seat 11.
Further, as shown in fig. 2, a shaft sleeve 1 is further disposed between the first rotating shaft 2 and the output shaft 52 to realize smooth relative rotation between the two, and the central position of the first rotating shaft 2 is ensured through supporting function. Wherein, alternatively, one end of the sleeve 1 in the axial direction is abutted against a step on the output shaft 52, and the other end is abutted against a step on the inner peripheral surface of the first rotation shaft 2.
Further, as shown in fig. 12, the plastic ring 16 is fixedly provided at one end of the inner tooth casing 51 in the axial direction, and the first rotary shaft 2 is inserted and fixed to the plastic ring 16, so that noise can be prevented from being generated when the inner tooth casing 51 of the transmission 5 is directly contacted with the first rotary shaft 2. Optionally, a plastic ring groove 161 is formed on the plastic ring 16, and a first shaft protrusion 22 is formed on the first shaft 2 to connect with the plastic ring groove 161, so as to realize synchronous rotation.
Further, as shown in fig. 1, 2 and 14 to 16, the rotary driving device further includes a rotary housing 8, and the rotary housing 8 is sleeved outside the internal tooth housing 51 and the driving housing 42, so as to realize protection of the transmission member 5 and the driving member 4. The two ends of the rotary shell 8 in the axial direction are respectively clamped and fixed with the first rotating shaft 2 and the second rotating shaft 3 so as to synchronously rotate. Optionally, the rotary casing 8 is a cylindrical casing, two ends of the rotary casing are respectively provided with a plurality of first casing clamping blocks 81 and second casing clamping blocks 82 formed by inwards sinking, the first casing clamping blocks 81 are clamped with the first rotating shaft clamping grooves 21 on the first rotating shaft 2, the second casing clamping blocks 82 are clamped with the second rotating shaft clamping grooves 31 on the second rotating shaft 3, so that the first rotating shaft 2 and the second rotating shaft 3 are matched and limited, and the three coaxial rotation is realized.
Further, as shown in fig. 4 and 15 to 18, the rotary driving device further includes a connecting member 9, and two ends of the connecting member 9 in the axial direction are respectively inserted into the driving housing 42 and the second rotating shaft 3 to synchronously rotate. The second rotating shaft 3 may have a hollow ring structure. The outer peripheral surface of the connecting piece 9 is fixedly inserted with the inner peripheral surface of the rotary shell 8 to synchronously rotate, so that the outer surface of the driving shell 42 is not required to be processed additionally, and the driving of the driving shell 42 to the second rotating shaft 3 can be realized by means of the driving of the connecting piece 9.
Specifically, the outer peripheral surface of the connecting piece 9 is provided with a bar-shaped grain 92 matched with the rotary shell 8, the connecting protrusion 93 of the connecting piece 9 is fixedly inserted with the second rotary shaft 3, and the connecting groove 94 of the connecting piece 9 is fixedly inserted with one axial end of the driving shell 42, so that synchronous rotation of the connecting piece 9, the driving shell 42 and the second rotary shaft 3 is realized. In addition, the connecting piece 9 is further provided with a wire harness collecting groove 91, which is mainly used for collecting the wire harnesses of the driving piece 4 together, so that the wire harnesses can always keep an integrated state and are safe under the condition that the driving piece 4 vibrates. Specifically, the wire harness of the driving member 4 extends into the second rotating shaft 3 through the harness collecting groove 91.
Further, as shown in fig. 2, the supporting damping sleeve 10 is disposed between the driving shell 42 and the rotating shell 8, specifically, may be disposed near the transmission member 5, so as to achieve the effects of damping and reducing noise, and in addition, for achieving smooth sleeving, the outer diameter of the driving shell 42 is smaller than the inner diameter of the rotating shell 8, and the supporting damping sleeve 10 can play a supporting role between the driving shell 42 and the rotating shell 8. Alternatively, the supporting damping sleeve 10 is a rubber sleeve, and in other embodiments, may be a sleeve body made of other materials and having a damping function.
Further, as shown in fig. 19 and 20, the rotary driving device further includes a second fixing seat 7, where the second fixing seat 7 is exposed to the rotary driving device, so that the second fixing seat 7 can be directly and fixedly connected with a set position in space, and the rotary driving device is supported by matching the first fixing seat 6 and the second fixing seat 7, and the stability of supporting the second rotating shaft 3 can be improved. The second shaft 3 is rotatably connected to the second fixing seat 7 at an end axially remote from the driving member 4, in particular by means of a second bearing 15. In addition, an arc-shaped second chute 71 can be arranged on the second fixing seat 7, a second sliding block 32 is arranged at one axial end of the second rotating shaft 3, and the second sliding block 32 is slidably connected with the second chute 71 so as to guide the rotation of the second rotating shaft 3, and the rotating stability is improved.
The output shaft 52 of the rotary driving device in this embodiment can be kept fixed in use, and when the rotary driving device is applied to a transmission mechanism such as a curtain lifting mechanism, the working principle includes: the output shaft 52 is limited and clamped by the first fixing seat 6 and cannot rotate in the whole course, when the driving piece 4 is started, power is transmitted through the driving piece 5, a rotating torque force is transmitted to the output shaft 52, but because the output shaft 52 is limited by the first fixing seat 6 and cannot rotate, the rotating torque force can act on the driving piece 5 in turn, the gear transmission component of the driving piece 5 is driven to reversely rotate, the inner tooth shell 51 rotates, the driving shell 42 of the driving piece 4 is driven to rotate, the driving shell 42 is fixedly connected with the connecting piece 9, the connecting piece 9 can receive the rotating torque force, one side of the connecting piece 9 is fixedly matched with the second rotating shaft 3, the inner tooth shell 51 of the driving piece 5 is fixedly matched with the first rotating shaft 2, the rotating torque force received by the inner tooth shell 51 of the driving piece 5 and the connecting piece 9 are respectively transmitted to the first rotating shaft 2 and the second rotating shaft 3, and the first rotating shaft 2 and the second rotating shaft 3 are fixedly matched with the rotating shell 8, the rotating shell 8 is driven to rotate, and load rotation such as a curtain is finally realized.
Besides the above rotation driving device, the invention also provides a transmission mechanism comprising the rotation driving device, and the corresponding beneficial effects can also be referred to the above embodiment. Wherein, set up first curtain fixed knot and construct 24 on the first pivot 2, set up second curtain fixed knot and construct 33 on the second pivot 3, first curtain fixed knot constructs 24 and second curtain fixed knot construct 33 and is used for fixed curtain respectively to realize the lift of curtain.
It will be understood that when an element is referred to as being "fixed" to another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. Furthermore, in the description of the present invention, unless otherwise indicated, the meaning of "a plurality", "a plurality of groups" is two or more.
The terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like refer to an orientation or positional relationship based on that shown in the drawings, merely for convenience of description and to simplify the description, and do not denote or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.
The transmission mechanism and the rotary driving device provided by the invention are described in detail above. The principles and embodiments of the present invention have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present invention and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the invention can be made without departing from the principles of the invention and these modifications and adaptations are intended to be within the scope of the invention as defined in the following claims.
Claims (10)
1. A rotary driving device is characterized by comprising a driving piece (4), a transmission piece (5), a first rotating shaft (2) and a second rotating shaft (3); the driving member (4) includes a driving housing (42) and a driving shaft (41) rotatable relative to the driving housing (42); the first connecting end of the transmission piece (5) is fixed on the driving shaft (41), the second connecting end of the transmission piece is fixed on the driving shell (42) so as to drive the first connecting end to move through the driving shaft (41), and then the driving shell (42) is driven to move through the second connecting end; the first rotating shaft (2) and the second rotating shaft (3) are sequentially arranged along the axial direction, the first rotating shaft (2) is connected to the second connecting end, and the second rotating shaft (3) is connected to the driving shell (42).
2. The rotary drive device according to claim 1, further comprising a first fixed seat (6), the first fixed seat (6) being exposed to the rotary drive device; the transmission part (5) is a planetary gear transmission assembly and comprises an output shaft (52), a sun gear (53) and an internal tooth shell (51) which are connected into a whole in a transmission way, the output shaft (52) is fixed on the first fixing seat (6), the sun gear (53) is fixedly connected with the driving shaft (41), and the internal tooth shell (51) is fixedly connected with the driving shell (42).
3. The rotary drive according to claim 2, characterized in that the first shaft (2) is of hollow annular construction; an arc-shaped first sliding groove (62) is formed in the first fixing seat (6), a first sliding block (23) is arranged at one axial end of the first rotating shaft (2), the first sliding block (23) is connected to the first sliding groove (62) in a sliding mode so as to guide rotation of the first rotating shaft (2), and the other axial end of the first rotating shaft (2) is fixedly connected to the inner tooth shell (51); the output shaft (52) is axially inserted into the first rotating shaft (2) and is fixedly inserted into the first fixing seat (6).
4. The rotary drive according to claim 2, characterized in that the first shaft (2) is of hollow annular construction; the output shaft (52) is axially inserted into the first rotating shaft (2), and a damping sleeve (13) is arranged between the output shaft (52) and the first rotating shaft (2).
5. The rotary drive device according to claim 4, further comprising a support base (11), one end of the first shaft (2) in the axial direction being fitted over the one end of the internal tooth casing (51) in the axial direction, the support base (11) being supported between the first shaft (2) and the internal tooth casing (51) in the radial direction.
6. The rotary drive device according to any one of claims 1 to 5, further comprising a rotary housing (8), the rotary housing (8) being sleeved outside the second connection end and the drive housing (42); the two ends of the rotary shell (8) in the axial direction are respectively clamped and fixed with the first rotating shaft (2) and the second rotating shaft (3) so as to synchronously rotate.
7. The rotary driving device according to claim 6, further comprising a connecting member (9), wherein both ends of the connecting member (9) in the axial direction are respectively inserted into the drive housing (42) and the second rotary shaft (3) to be synchronously rotated; the outer peripheral surface of the connecting piece (9) is fixedly inserted with the inner peripheral surface of the rotary shell (8) in a plugging manner so as to synchronously rotate.
8. Rotary drive device according to claim 6, characterized in that a supporting damping sleeve (10) is arranged between the drive housing (42) and the rotary housing (8).
9. The rotary driving device according to claim 6, further comprising a second fixing seat (7), wherein the second fixing seat (7) is exposed out of the rotary driving device, a second sliding block (32) is arranged at one end, away from the rotary housing (8) in the axial direction, of the second rotary shaft (3), an arc-shaped second sliding groove (71) is arranged on the second fixing seat (7), and the second sliding block (32) is slidably connected with the second sliding groove (71) so as to guide the rotation of the second rotary shaft (3).
10. A transmission mechanism, characterized by comprising the rotary driving device according to any one of claims 1 to 9, wherein a first curtain fixing structure (24) is arranged on the first rotating shaft (2), and a second curtain fixing structure (33) is arranged on the second rotating shaft (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310905054.1A CN116937886A (en) | 2023-07-21 | 2023-07-21 | Transmission mechanism and rotary driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310905054.1A CN116937886A (en) | 2023-07-21 | 2023-07-21 | Transmission mechanism and rotary driving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116937886A true CN116937886A (en) | 2023-10-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310905054.1A Pending CN116937886A (en) | 2023-07-21 | 2023-07-21 | Transmission mechanism and rotary driving device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116937886A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117682057A (en) * | 2024-01-31 | 2024-03-12 | 北京大学 | Driving mechanism, steering engine and aircraft |
-
2023
- 2023-07-21 CN CN202310905054.1A patent/CN116937886A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117682057A (en) * | 2024-01-31 | 2024-03-12 | 北京大学 | Driving mechanism, steering engine and aircraft |
| CN117682057B (en) * | 2024-01-31 | 2024-05-28 | 北京大学 | Driving mechanism, steering engine and aircraft |
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