CN213822186U - Rotary offset driving mechanism - Google Patents
Rotary offset driving mechanism Download PDFInfo
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- CN213822186U CN213822186U CN202022650543.1U CN202022650543U CN213822186U CN 213822186 U CN213822186 U CN 213822186U CN 202022650543 U CN202022650543 U CN 202022650543U CN 213822186 U CN213822186 U CN 213822186U
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- swivel mount
- shaft
- screw rod
- rotary offset
- drive mechanism
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- 230000007246 mechanism Effects 0.000 title claims abstract description 30
- 230000008859 change Effects 0.000 claims abstract description 7
- 230000000694 effects Effects 0.000 claims abstract description 5
- 230000005540 biological transmission Effects 0.000 claims description 9
- 125000003003 spiro group Chemical group 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 3
- 239000011435 rock Substances 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 6
- 230000009467 reduction Effects 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 3
- 230000000474 nursing effect Effects 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
The utility model provides a rotary offset actuating mechanism, including mount and the swivel mount that the surface is parallel to each other, fixed supporting part and the driver part who is connected with the swivel mount respectively of being provided with on the mount, the swivel mount can be respectively relative supporting part and driver part free rotation in the plane, driver part include with swivel mount complex drive shaft, the drive shaft can be under driver part's effect change position in the rotation plane of swivel mount, and driver part can lock the position of drive shaft. The utility model has the advantages that: for the swivel mount provides two rotation centers, change the position of one of them drive shaft through drive assembly to make the swivel mount take place to rotate in the plane relative support assembly, overcome under the single pivot condition, the influence of eccentric force to the pivot life-span, improve stability and life, the drive shaft can be fixed in the optional position of home range, guarantees that the swivel mount can not take place to rock in the use, improves the security.
Description
Technical Field
The utility model relates to a rotary driving mechanism technical field especially relates to a rotary offset actuating mechanism.
Background
Along with the increase of aging population, people who are inconvenient to move are more and more, a plurality of patients can only lie in bed for a long time, and when the people are nursed, the patients sometimes need to rotate properly relative to the bed so as to be convenient for getting on and off the bed, nursing the body and the like; the existing equipment adopts a structure directly driven by a motor, or the motor, a speed reducer and a rotating shaft adopt a series structure, so that the occupied space in the axial direction is large, and a large installation space is needed. Some equipment adopts pivot and reduction gear to establish ties, and the input shaft of reduction gear and motor adopt synchronous belt drive's mode to drive, and the center pin of pivot is the biggest position input point of moment of torsion, need be equipped with great reduction gear for satisfying the moment of torsion demand, the cost that increases undoubtedly, the great installation space that needs take up of the same size of big moment of torsion reduction gear.
The utility model discloses a be CN 208741347U's utility model patent discloses a bed board rotary mechanism for nursing bed, make the articulated cooperation of head rod that flexible actuating mechanism and actuating shaft are connected, the first hinge bar of concertina movement drive through flexible actuating mechanism rotates in the plane, thereby the time drive shaft takes place to rotate, and then drive the bed board and rotate, its structural component is more complicated, flexible actuating mechanism generally needs external compressor or air pump just can work, the noise is great, and the articulated setting in flexible actuating mechanism both ends all, stability is relatively poor, the bed board only supports the cooperation through the drive shaft with bearing structure, when the bed board rotates, the drive shaft receives the effect of eccentric force easily, influence life.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that it is big to prior art installation space demand, the pivot receives the problem of eccentric force effect easily, provides one kind and adopts the motion of biasing structure drive bed board and can be in the rotatory offset actuating mechanism who locks.
The utility model discloses a solve above-mentioned technical problem through following technical scheme: the utility model provides a rotary offset actuating mechanism, includes mount and swivel mount that the surface is parallel to each other, fixed support component and the drive unit who is connected with the swivel mount respectively that is provided with on the mount, the swivel mount can be respectively relative support component and drive unit free rotation in the plane, drive unit include with swivel mount complex drive shaft, the drive shaft can change the position in the rotation plane of swivel mount under drive unit's effect, and drive unit can lock the position of drive shaft.
The utility model discloses a swivel mount provides two rotation centers, changes the position of one of them drive shaft through drive assembly to make the swivel mount relative support assembly in the plane take place to rotate, overcome under the single pivot condition from this, the influence of eccentric force to the pivot life-span improves stability and life, and the drive shaft can be fixed at the optional position of home range, ensures that the swivel mount can not take place to rock in the use, improves the security.
Preferably, the driving part further comprises a motor fixed on the fixing frame, an output shaft of the motor is in transmission connection with a lead screw, a first sliding seat is arranged on the lead screw in a threaded manner, a second guide rod perpendicular to the lead screw is arranged on the first sliding seat, two ends of the second guide rod are fixedly connected with the second sliding seat, and the driving shaft is fixed on the second sliding seat.
Preferably, the length direction of the screw rod is perpendicular to the length direction of the fixing frame.
Preferably, the fixing frame is further fixedly provided with at least one first guide rod parallel to the screw rod, and the first guide rod is in sliding fit with the first sliding seat.
Preferably, the first slide carriage and the second slide carriage are respectively provided with a linear bearing.
Preferably, a guide wheel is coaxially and fixedly arranged at one end of the screw rod, and the guide wheel is in transmission fit with the output end of the motor through a belt.
Preferably, the two ends of the screw rod are respectively provided with a screw rod seat fixedly matched with the fixing frame, the screw rod is freely matched with the screw rod seat along the circumferential direction, and the guide wheel is positioned on the outer side of one of the screw rod seats.
Preferably, a nut is screwed on the screw rod, and the first sliding seat is fixedly matched with the nut.
Preferably, the supporting part comprises a supporting bearing and a supporting shaft, an outer ring of the supporting bearing is fixedly matched with the fixing frame, an inner ring of the supporting bearing is fixedly matched with the supporting shaft, and the supporting shaft is fixedly matched with the rotating frame.
Preferably, the appearance of back shaft is provided with a plurality of fixed orificess along circumference, the axial of fixed orificess is parallel with the back shaft axial, and the swivel mount passes through fixed orificess and back shaft spiro union fixed.
The utility model provides a pair of select biasing actuating mechanism's advantage lies in: the two rotating centers are provided for the rotating frame, the position of one of the driving shafts is changed through the driving part, so that the rotating frame rotates relative to the supporting part in the plane, the influence of eccentric force on the service life of the rotating shaft is overcome, the stability and the service life are improved, the driving shaft can be fixed at any position in a movable range, the rotating frame is ensured not to shake in use, and the safety is improved. The position of the driving shaft is changed through the screw rod, so that the driving shaft can be conveniently locked through threads, and the stability of the rotating frame is ensured; the motor passes through the belt transmission power, reduces axial installation distance to the speed reducer transmission of big moment of torsion is not needed, reduce cost and to installation space's demand.
Drawings
Fig. 1 is a schematic view of a rotary deflection actuating mechanism according to an embodiment of the present invention;
fig. 2 is a schematic bottom view of a rotary deflection driving mechanism according to an embodiment of the present invention;
fig. 3 is a schematic view of a driving component of a rotary deflection driving mechanism according to an embodiment of the present invention;
fig. 4 is a schematic diagram illustrating the driving of the rotary deflection driving mechanism according to the embodiment of the present invention;
fig. 5 is a schematic view of a supporting member of a rotary deviation actuating mechanism according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention are described below in detail and completely with reference to the accompanying drawings, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1, the present embodiment provides a rotary offset driving mechanism, which includes a fixed frame 1 and a rotating frame 2 with surfaces parallel to each other, a supporting component 3 and a driving component 4 respectively connected to the rotating frame 2 are fixedly disposed on the fixed frame 1, the rotating frame 2 can freely rotate in a plane relative to the supporting component 3 and the driving component 4, respectively, the driving component 4 includes a driving shaft 41 matched with the rotating frame 2, the driving shaft 41 can change position in the rotating plane of the rotating frame 2 under the action of the driving component 4, and the driving component 4 can lock the position of the driving shaft 41.
This embodiment provides two rotation centers for swivel mount 2, changes one of them drive shaft 41's position through drive assembly 4 to make swivel mount 2 take place to rotate in the plane relative support component 3, overcome the single pivot condition from this, the influence of eccentric force to the pivot life-span, stability and life are improved, drive shaft 41 can be fixed in the optional position of home range, ensure that swivel mount 2 can not take place to rock in the use, improve the security.
Referring to fig. 2 and 3, the driving part 4 further includes a motor 42 fixed on the fixing frame 1, an output end of the motor 42 is in transmission connection with a lead screw 43, the lead screw 43 is screwed with a first sliding seat 44, a second guide rod 45 perpendicular to the lead screw 43 is arranged on the first sliding seat 44, two ends of the second guide rod 45 are fixedly connected with a second sliding seat 46, and the driving shaft 41 is fixed on the second sliding seat 46.
Referring to fig. 4, the screw 43 is driven by the motor 42 to rotate, so that the first slide seat 44 on the screw 43 changes position along the length direction of the screw 43, and since the distance between the driving shaft 41 and the supporting component 3 remains unchanged, in the case that the first slide seat 44 moves along the length direction of the screw 43, the second slide seat 46 needs to slide along the second guide rod 45 to change position to balance the position change brought by the first slide seat 44, so that the driving shaft 41 simultaneously moves longitudinally and transversely in a plane, and finally the rotating frame 2 is driven to rotate relative to the supporting component 3 in the plane by the movement of the driving shaft 41.
Referring to fig. 3 again, the length direction of the lead screw 43 is perpendicular to the length direction of the fixing frame 1, at least one first guide rod 431 parallel to the lead screw 43 is further fixedly arranged on the fixing frame 1, and the first guide rod 431 is in sliding fit with the first sliding seat 44, so as to ensure that the first sliding seat 44 cannot rotate under the rotation of the lead screw 43; the first slide 44 and the second slide 46 are respectively provided with a linear bearing (not shown), and the first guide rod 431 and the second guide rod 45 are respectively matched with the linear bearings. A nut (not shown) is screwed on the screw 43, and the first slide 44 is fixedly matched with the nut, so that the position of the first slide 44 is adjusted by the rotation of the screw 42.
In order to reduce the axial installation space, the screw rod 43 is in transmission fit with the motor 42 through a belt 421, specifically, one end of the screw rod 43 is coaxially and fixedly provided with a guide wheel 432, and the guide wheel 432 is in transmission fit with the output end of the motor 42 through the belt 421; the motor 42 is fixedly mounted on the fixing frame 1 through a motor mounting seat 422. The two ends of the screw rod 43 are respectively provided with a screw rod seat 433 fixedly matched with the fixed frame 1, the screw rod 43 and the screw rod seat 433 are freely matched along the circumferential direction, specifically, the screw rod 43 and the screw rod seat 433 can be connected by using structures such as a bearing, and one end of the screw rod 43 penetrates through the screw rod seat 433 and is connected with the guide wheel 432. The two ends of the first guide rod 431 are also fixed on the screw rod base 433, and the first guide rod 431 can be fixedly or rotatably matched with the screw rod base 433.
The rotating frame 2 rotates relative to the second sliding seat 46 when rotating, the rotating frame 2 and the driving shaft 41 can be freely matched along the circumferential direction when being arranged, the driving shaft 41 and the second sliding seat 46 can also be freely matched along the circumferential direction, two ends of the driving shaft 41 can be freely fixed along the circumferential direction respectively, and the bearings can be specifically selected for connection.
Referring to fig. 1 and 5, the support member 3 includes a support bearing 31 and a support shaft 32, the outer ring of the support bearing 31 is fixedly matched with the fixing frame 1 in a welding or screwing manner, the inner ring of the support bearing 31 is fixedly matched with the support shaft 32, the support shaft 32 is fixedly matched with the rotating frame 2, specifically, a plurality of fixing holes 33 are formed in the end portion of the support shaft 32 along the circumference, the axial direction of the fixing holes 33 is parallel to the axial direction of the support shaft 32, and the rotating frame 2 is fixedly screwed with the support shaft 32 through the fixing holes 33.
If the fixed frame 1 and the rotating frame 2 are at the same height, the supporting bearing 31 may be screwed with the fixed frame 1 using bolts in the same manner, so that the supporting bearing 31 is offset from the surface of the fixed frame 1, thereby leaving enough axial space to mount the rotating frame 2 in the fixed frame 1.
When the rotating frame 1 and the rotating frame 2 are used for patient care, the fixed frame 1 and the rotating frame 2 may be configured as a bed board structure, but the use scenario of the rotating offset driving mechanism provided by this embodiment is not limited to a nursing bed, and a person skilled in the art may adaptively configure the specific structures of the fixed frame 1 and the rotating frame 2 according to requirements.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (10)
1. A rotary offset drive mechanism characterized by: including mount and the swivel mount that the surface is parallel to each other, fixed supporting component and the driver part who is connected with the swivel mount respectively that is provided with on the mount, the swivel mount can be respectively relative supporting component and driver part free rotation in the plane, driver part include with swivel mount complex drive shaft, the drive shaft can be under driver part's effect in the rotation plane of swivel mount the change position, and driver part can lock the position of drive shaft.
2. A rotary offset drive mechanism according to claim 1, wherein: the driving part further comprises a motor fixed on the fixing frame, an output shaft of the motor is in transmission connection with the lead screw, a first sliding seat is arranged on the lead screw in a threaded mode, a second guide rod perpendicular to the lead screw is arranged on the first sliding seat, two ends of the second guide rod are fixedly connected with the second sliding seat, and the driving shaft is fixed on the second sliding seat.
3. A rotary offset drive mechanism as claimed in claim 2, wherein: the length direction of the screw rod is vertical to the length direction of the fixing frame.
4. A rotary offset drive mechanism according to claim 3, wherein: the fixed frame is also fixedly provided with at least one first guide rod parallel to the screw rod, and the first guide rod is in sliding fit with the first sliding seat.
5. A rotary offset drive mechanism according to claim 4, wherein: and the first sliding seat and the second sliding seat are respectively provided with a linear bearing.
6. A rotary offset drive mechanism as claimed in claim 2, wherein: and one end of the screw rod is coaxially and fixedly provided with a guide wheel, and the guide wheel is in transmission fit with the output end of the motor through a belt.
7. A rotary offset drive mechanism according to claim 6, wherein: the two ends of the screw rod are respectively provided with a screw rod seat fixedly matched with the fixing frame, the screw rod is freely matched with the screw rod seat along the circumferential direction, and the guide wheel is positioned on the outer side of one of the screw rod seats.
8. A rotary offset drive mechanism as claimed in claim 2, wherein: the screw rod is provided with a nut in a threaded manner, and the first sliding seat is fixedly matched with the nut.
9. A rotary offset drive mechanism according to claim 1, wherein: the supporting part comprises a supporting bearing and a supporting shaft, the outer ring of the supporting bearing is fixedly matched with the fixing frame, the inner ring of the supporting bearing is fixedly matched with the supporting shaft, and the supporting shaft is fixedly matched with the rotating frame.
10. A rotary offset drive mechanism according to claim 9, wherein: the expression of back shaft is provided with a plurality of fixed orificess along circumference, the axial and the back shaft axial direction parallel of fixed orifices, swivel mount pass through the fixed orifices and back shaft spiro union is fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022650543.1U CN213822186U (en) | 2020-11-16 | 2020-11-16 | Rotary offset driving mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022650543.1U CN213822186U (en) | 2020-11-16 | 2020-11-16 | Rotary offset driving mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213822186U true CN213822186U (en) | 2021-07-30 |
Family
ID=77016899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022650543.1U Active CN213822186U (en) | 2020-11-16 | 2020-11-16 | Rotary offset driving mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213822186U (en) |
-
2020
- 2020-11-16 CN CN202022650543.1U patent/CN213822186U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221009 Address after: Room 406, Building 3, Block C, Intelligent Equipment Technology Park, No. 3963, Susong Road, Economic and Technological Development Zone, Hefei City, Anhui Province, 236000 Patentee after: Hefei Hagong cijian Intelligent Technology Co.,Ltd. Address before: 236000 area C, intelligent equipment science and Technology Park, 3963 Susong Road, Hefei Economic and Technological Development Zone, Anhui Province Patentee before: HRG INTERNATIONAL INSTITUTE FOR RESEARCH & INNOVATION |