CN210673312U - Automatic clutch mechanism for controlling sine wave airflow in moisture loss measuring instrument - Google Patents
Automatic clutch mechanism for controlling sine wave airflow in moisture loss measuring instrument Download PDFInfo
- Publication number
- CN210673312U CN210673312U CN201920800188.6U CN201920800188U CN210673312U CN 210673312 U CN210673312 U CN 210673312U CN 201920800188 U CN201920800188 U CN 201920800188U CN 210673312 U CN210673312 U CN 210673312U
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- Prior art keywords
- clutch
- moisture loss
- crank
- sine wave
- measuring instrument
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Abstract
The utility model discloses an automatic clutch mechanism for controlling sine wave airflow in a moisture loss measuring instrument, which mainly comprises a left clutch piece and a right clutch piece which are combined in a separable mode, and also comprises a rotating device for driving the right clutch piece to rotate and a moving device for driving the rotating device to move left and right, wherein the right clutch piece is arranged at one end of the rotating device, the left clutch piece is fixed on a crank adjusting mechanism, the moving device drives the right clutch piece to move left and right by driving the rotating device to move so as to drive the right clutch piece to be close to or away from the left clutch piece, the rotating device and the moving device are mutually matched, the clutch can be opened and closed, the rotating device and the moving device are controlled by the two stepping motors, the structure is simple, the automatic adjustment can be realized, the manual adjustment steps are saved, and the working efficiency of the whole clutch mechanism is improved.
Description
Technical Field
The utility model belongs to the technical field of medical instrument, concretely relates to an automatic clutch mechanism that is arranged in water loss measuring apparatu to control sine wave air current.
Background
The sinusoidal airflow generator in the moisture loss measuring instrument is a device capable of generating periodically-changed sinusoidal airflow, and can switch different respiratory frequencies and respiratory volumes according to crowds of different age groups, and the utility model relates to an automatic clutch mechanism for controlling sinusoidal airflow in the moisture loss measuring instrument, which belongs to the component of the sinusoidal airflow generator.
At present, a sinusoidal airflow generator used in a moisture loss measuring instrument on the domestic market only has two modes of full sine waves and half sine waves, a test air source is mostly simulated by adopting an electromagnetic valve to cut off airflow or utilizing an independent respirator to generate mechanical ventilation, actually output airflow is not standard sine wave airflow, the frequency and humidity control precision is low, and the airflow has a large amount of disturbance and too many artificial regulation links when switching, so that the operation is complex, and the requirements of the existing market cannot be met.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome current technical defect, provide an automatic clutch mechanism for controlling sine wave air current among the moisture loss measuring apparatu, but simple structure automatically regulated has saved the step of artificial regulation to whole clutch mechanism's work efficiency has been improved.
In order to solve the technical problem, the utility model provides an automatic clutch mechanism for controlling sine wave air current among moisture loss measuring apparatu, include the clutch left part and the clutch right part that combine through detachable's mode, still including being used for the drive the rotatory rotary device of clutch right part and being used for the drive the mobile device that removes about the rotary device, the setting of clutch right part is in rotary device's one end, and then pass through the mobile device drive the clutch right part is close to or keeps away from the clutch left part.
Furthermore, the clutch left piece is provided with at least two through holes which penetrate through the clutch front and back, and the clutch right piece is provided with positioning pieces which are inserted into the through holes and are matched one by one.
Furthermore, the clutch right part comprises a clutch rotor, two positioning parts which are arranged on the clutch rotor in a penetrating and sliding mode from front to back and a pressing plate arranged at the rear end of the clutch rotor, a spring is arranged between the positioning parts and the pressing plate, and the front end of the positioning part protrudes out of the front end face of the clutch rotor.
Furthermore, a ring platform protruding in the radial direction is arranged at the rear end of the positioning piece, and the spring is sleeved at the rear end of the positioning piece and is positioned between the ring platform and the pressing piece.
Furthermore, six through holes distributed circumferentially are equidistantly arranged on the left clutch piece, and the two positioning pieces are symmetrically arranged.
Furthermore, the moving device comprises a bracket, a nut arranged on the bracket in a sliding manner, a lead screw matched with the nut and a first motor in transmission connection with the lead screw; the rotating device is fixed on the nut.
Furthermore, a groove is arranged in the middle of the upper end of the bracket, the screw nut is arranged in the groove in a sliding manner, a bearing seat is arranged at the rear end of the groove, the rear end of the screw rod penetrates through the bearing seat from front to back and is connected with the first motor,
furthermore, the rotating device comprises a second mounting seat arranged above the support and fixed on the nut and a second motor arranged on the second mounting seat, and the right clutch piece is connected with a transmission shaft of the second motor.
Further, the upper end of the support is further provided with a linear guide rail and a matched sliding block, the bottom of the second mounting seat is fixed with the sliding block, and the upper end of the support is further provided with a position sensor arranged in front of the second mounting seat.
Further, still include crank adjustment mechanism, crank adjustment mechanism includes crank guide, slides and locates slider-crank on the crank guide and rotates and locate slider-crank's crank adjustment lead screw on the crank guide and run through slider-crank around, crank adjustment lead screw and slider-crank threaded connection, the one end protrusion of crank adjustment lead screw crank guide and with the clutch left part is connected.
The utility model discloses following beneficial effect has:
the utility model discloses an automatic clutch mechanism for controlling sine wave air current among moisture loss measuring apparatu passes through the rotation of rotating device control clutch right part wherein, can make setting element in the clutch right part and the trompil on the clutch left part realize aim at and skew, remove about can controlling rotating device through wherein mobile device and control the removal of clutch right part, thereby realized being close to or keeping away from of clutch right part for the clutch left part, mutually support through rotating device and mobile device, the effect of opening and shutting of clutch has been realized, rotating device and mobile device are through two step motor control, simple structure can realize that the automation of clutch opens and shuts, the step of artificial regulation has been saved, whole clutch mechanism's work efficiency has been improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, do not constitute a limitation of the invention, and in which:
FIG. 1 is a schematic view of an automatic clutch mechanism for controlling sine wave airflow in a moisture loss measuring instrument according to the present embodiment;
FIG. 2 is an exploded view of the right clutch member of the automatic clutch mechanism for controlling sinusoidal airflow in a moisture loss measuring instrument according to the present embodiment;
FIG. 3 is a view showing a rotary device in the automatic clutch mechanism for controlling sine wave air flow in the moisture loss measuring instrument according to the present embodiment;
fig. 4 shows a clutch opening/closing device in the automatic clutch mechanism for controlling sine wave air flow in the moisture loss measuring instrument according to the present embodiment.
Detailed Description
For a fuller understanding of the technical aspects of the present invention, reference should be made to the following detailed description taken together with the accompanying drawings.
Examples
As shown in fig. 1 to 4, the automatic clutch mechanism for controlling sinusoidal airflow in a moisture loss measuring instrument according to the embodiment includes a moving device, a rotating device disposed at an upper end of the moving device, a right clutch component 2 disposed on a left side of the rotating device, and a left clutch component 1 detachably engaged with the right clutch component 2, wherein the rotating device is configured to drive the right clutch component to rotate, and the moving device is configured to drive the rotating device to move left and right, so that the right clutch component moves left and right; in the structure, the right part of the clutch rotates and moves left and right through the moving device and the rotating device, so that the right part 2 of the clutch can rotate, approach or separate from the left part 1 of the clutch, and the purpose of opening or closing the clutch is achieved.
Specifically, the clutch left part 1 is a disc-shaped structure with a fixed shaft 19 at one end, six through holes 20 are formed in the clutch left part 1, the six through holes 20 are circumferentially and equidistantly distributed on a circumference with the center of a turntable of the clutch left part 1 as a circle center, two positioning pieces 22 capable of being inserted into the through holes 20 are arranged on the clutch right part 2, square holes 29 are formed in the fixed shaft 19 in the axial direction, the clutch left part 1 is fixed on a crank adjusting mechanism through the square holes 29, the crank adjusting mechanism comprises a crank guide rail 16, a crank sliding block 18 arranged on the crank guide rail 16 in a sliding mode and a crank adjusting lead screw 17 arranged on the crank guide rail 16 in a rotating mode and penetrating through the crank sliding block 18 from front to back, the crank adjusting lead screw 17 is in threaded connection with the crank sliding block 18, and one end of the crank adjusting lead screw 17 protrudes out of the crank guide.
Specifically, the clutch right part 2 comprises a clutch rotor 21, two via holes 25 are formed in the clutch rotor 21, the two via holes 25 are symmetrically distributed on a diameter line of a turntable of the clutch rotor 21, the pitch of the two via holes 25 is equal to the diameter of the circumference where the through hole 20 is located, the diameter of each via hole 25 is equal to the diameter of the through hole 20, the positioning part 22 penetrates through the via holes 25, the front end of the positioning part 22 protrudes out of the front end face of the clutch rotor 21, a circular pressing sheet 24 is arranged at the rear end of the clutch rotor, and a spring 23 is arranged between the positioning part 22 and the pressing sheet 24.
Specifically, a ring platform 26 protruding in the radial direction is arranged at the rear end of the positioning element 22, the spring 23 is sleeved at the rear end of the positioning element 22, the inner diameter of the spring 23 is smaller than the diameter of the ring platform 26, two ends of the spring 23 abut against the ring platform 26 and the pressing sheet 24, the diameter of the ring platform 26 is larger than the diameter of the front opening of the through hole 25, the positioning element 22 can be clamped in the clutch rotor 21 due to the existence of the ring platform 26, the pressing sheet 24 is provided with three fixing holes 27, three screw holes 28 are correspondingly arranged on the rear end surface of the clutch rotor 21, the pressing sheet 24 is sleeved on the clutch rotor 21, the pressing sheet 24 and the clutch rotor 21 are fixedly connected by passing bolts through the fixing holes 27 and the screw holes 28, the positioning element 22 can extend out of the front end surface of the clutch rotor 21 due to the elastic force of the spring 23 extruding the positioning element 22, and when the front end of the positioning element 22 is not aligned with the through hole 20, due to the existence of the spring 23, the positioning member 22 can be compressed backwards under the influence of pressure, the clutch right member 2 is prevented from being stuck or damaged, and when the positioning member 22 rotates to the through hole 20, the positioning member 22 is popped out and extends into the through hole 20 under the influence of elasticity.
Specifically, the front end of the positioning element 22 can be aligned to the through hole 20 through rotation of the right clutch element 2, the six through holes 20 are circumferentially and equidistantly distributed on a circumference which takes the center of a turntable of the left clutch element 1 as a circle center, the six through holes 20 are distributed on three diameters which are two by two and form 60 degrees, the positioning element 22 can be matched with the two through holes 20 distributed on each diameter, the positioning element 22 can be aligned to the through hole 20 through rotation of the right clutch element 2 by less than 60 degrees at each time, and after the positioning element 22 is aligned to the through hole 20, the positioning element 22 can be inserted into the through hole 20 through leftward translation of the right clutch element 2, so that the right clutch element 2 and the left clutch element 1 are closed.
Specifically, mobile device includes support 12, and the top of support 12 is equipped with a linear type recess, is equipped with the screw 11 that can follow the recess and slide in the recess, and the rear end that lies in the recess on support 12 is equipped with bearing frame 10, is equipped with a lead screw 9 supporting with screw 11 in the recess, and screw 11 can move about along with the rotation of lead screw 9, and rotary device is fixed in on the screw 11, runs through bearing frame 10 around the rear end of lead screw 9 and stretches out outside bearing frame 10 and be connected with first motor 7 transmission.
Specifically, the moving device further comprises a first mounting seat 6, a first rotating shaft hole 61 is formed in the first mounting seat 6, a rotating shaft of the first motor 7 penetrates through the first rotating shaft hole 61 and is fixedly connected with a lead screw 9 through a first coupler 8, when the first motor 7 works, the lead screw 9 can be driven to rotate, a nut 11 which is located in a groove and matched with the lead screw 9 can move left and right along with the rotation of the lead screw 9, the rotation of the lead screw 9 can drive a rotating device fixed on the nut 11 to move left and right, and then the clutch right piece 2 is driven to move left and right.
Specifically, the rotating device comprises a second mounting seat 4 and a second motor 5, a second rotating shaft hole 41 is formed in the second mounting seat 4, a rotating shaft of the second motor 5 penetrates through the second rotating shaft hole 41 and is fixed on the second mounting seat 4, the clutch rotor 21 is fixedly connected with the rotating shaft of the second motor 5 through the second coupler 3, in the structure, the clutch right piece 2 is fixedly connected with the second motor 5 through the second coupler 3, and when the second motor 5 works, the clutch right piece 2 can be driven to rotate.
Specifically, two guide rails 14 parallel to the groove are arranged on the bracket 12 and located on two sides of the groove, a sliding block 13 capable of moving along the guide rails 14 is arranged in a matched manner with the guide rails 14, the second mounting seat 4 is fixedly connected with the two sliding blocks 13, and when the first motor 7 works, the screw 11 can drive the rotating device to move left and right on the guide rails 14, so that the clutch right piece 2 moves left and right; the upper end of the bracket 12 is also provided with a position sensor 15 arranged in front of the second mounting seat 4, and the position sensor 15 can detect the distance of the right clutch piece 2 moving left and right, so as to send a signal to control the start and stop of the first motor 7.
When the sine wave air flow generator needs to automatically adjust the ventilation gear, the sine wave air flow generator firstly starts the automatic clutch mechanism, the working of the automatic clutch mechanism is characterized in that the sine wave air flow generator finishes the coaxial adjustment of the axes of the left clutch piece 1 and the right clutch piece 2, the left clutch piece 1 is fixed on the crank adjusting mechanism and keeps in a stationary state, the first motor 7 starts to work, the right clutch piece 2 is controlled to linearly move leftwards to be close to the left clutch piece 1, the second motor 5 works to drive the right clutch piece 2 to slowly rotate while the first motor 7 works, the positioning piece 22 in the right clutch piece 2 is aligned to the through hole 20 of the left clutch piece 1, the first motor 7 continues to work, the positioning piece 22 is inserted into the through hole 20, at the moment, the position sensor 16 on the bracket 12 controls the second motor 5 and the first motor 7 to stop rotating after detecting that the right clutch piece 2 and the left clutch piece 1 are engaged, the engagement of the clutch is completed.
When the sine wave airflow generator needs to close the automatic clutch mechanism to enable the clutch to be separated, the first motor 7 starts to rotate reversely, the clutch right piece 2 is driven to move linearly to the right and away from the clutch left piece 1, when the position sensor 16 on the support 12 detects that the distance between the clutch right piece 2 and the clutch left piece 1 reaches the clutch separation distance, the first motor 7 stops working, and the separation of the clutch is completed at the moment.
In other embodiments of the present invention, the first motor 7 and the second motor 5 are stepping motors.
The technical solutions provided by the embodiments of the present invention are described in detail above, and the principles and embodiments of the present invention are explained herein by using specific examples, and the descriptions of the above embodiments are only applicable to help understand the principles of the embodiments of the present invention; meanwhile, for a person skilled in the art, according to the embodiments of the present invention, there may be variations in the specific implementation manners and application ranges, and in summary, the content of the description should not be construed as a limitation to the present invention.
Claims (10)
1. An automatic clutch mechanism for controlling sine wave airflow in a moisture loss measuring instrument comprises a clutch left piece and a clutch right piece which are combined in a separable mode, and is characterized by further comprising a rotating device for driving the clutch right piece to rotate and a moving device for driving the rotating device to move left and right, wherein the clutch right piece is arranged at one end of the rotating device, and further the moving device drives the clutch right piece to be close to or far away from the clutch left piece.
2. The automatic clutch mechanism for controlling sine wave air flow in a moisture loss measuring instrument as claimed in claim 1, wherein said clutch left member is provided with at least two through holes passing through in front and back direction, and said clutch right member is provided with a positioning member inserted into said through holes and engaged one by one.
3. The automatic clutch mechanism for controlling sine wave air flow in a moisture loss measuring instrument as claimed in claim 2, wherein said clutch right member comprises a clutch rotor, two positioning members slidably disposed on the clutch rotor in a front-back direction, and a pressing plate disposed at the rear end of the clutch rotor, wherein a spring is disposed between the positioning members and the pressing plate, and the front end of the positioning members protrudes from the front end surface of the clutch rotor.
4. The automatic clutch mechanism for controlling a sine wave air flow in a moisture loss gauge according to claim 3, wherein said retainer has a radially protruding collar at its rear end, and said spring is fitted over said retainer at its rear end and between said collar and said pressure plate.
5. The automatic clutch mechanism for controlling sinusoidal airflow in a moisture loss measuring instrument as in claim 4, wherein six circumferentially distributed through holes are equidistantly formed in said clutch left member, and two of said positioning members are symmetrically arranged.
6. The automatic clutch mechanism for controlling sine wave air flow in a moisture loss measuring instrument according to any one of claims 1 to 5, wherein the moving device comprises a bracket, a nut slidably arranged on the bracket, a lead screw matched with the nut, and a first motor in transmission connection with the lead screw; the rotating device is fixed on the nut.
7. The automatic clutch mechanism for controlling sine wave air flow in a moisture loss measuring instrument as claimed in claim 6, wherein a groove is provided in the middle of the upper end of said bracket, said nut is slidably provided in said groove, and a bearing seat is provided at the rear end of said groove, and the rear end of said screw rod penetrates said bearing seat back and forth and is connected to said first motor.
8. The automatic clutch mechanism for controlling sine wave air flow in a moisture loss measuring instrument as claimed in claim 7, wherein said rotating means comprises a second mounting seat provided above said bracket and fixed to said nut and a second motor provided on said second mounting seat, said clutch right member being connected to a transmission shaft of said second motor.
9. The automatic clutch mechanism for controlling sinusoidal air flow in a moisture loss gauge as in claim 8, wherein said carrier further comprises a linear guide and a mating slider at an upper end thereof, a bottom of said second mounting seat is fixed to said slider, and a position sensor disposed in front of said second mounting seat is further provided at an upper end of said carrier.
10. The automatic clutch mechanism for controlling sine wave air flow in a moisture loss measuring instrument as claimed in claim 1, further comprising a crank adjusting mechanism, wherein said crank adjusting mechanism comprises a crank guide rail, a crank block slidably disposed on the crank guide rail, and a crank adjusting screw rotatably disposed on the crank guide rail and penetrating the crank block forward and backward, said crank adjusting screw is in threaded connection with the crank block, and one end of said crank adjusting screw protrudes out of said crank guide rail and is connected with said left clutch member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920800188.6U CN210673312U (en) | 2019-05-30 | 2019-05-30 | Automatic clutch mechanism for controlling sine wave airflow in moisture loss measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920800188.6U CN210673312U (en) | 2019-05-30 | 2019-05-30 | Automatic clutch mechanism for controlling sine wave airflow in moisture loss measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210673312U true CN210673312U (en) | 2020-06-05 |
Family
ID=70881031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920800188.6U Expired - Fee Related CN210673312U (en) | 2019-05-30 | 2019-05-30 | Automatic clutch mechanism for controlling sine wave airflow in moisture loss measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210673312U (en) |
-
2019
- 2019-05-30 CN CN201920800188.6U patent/CN210673312U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200605 Termination date: 20210530 |