CN111844056A - Low-noise mechanical self-locking rotating arm device and using method - Google Patents
Low-noise mechanical self-locking rotating arm device and using method Download PDFInfo
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- CN111844056A CN111844056A CN201910947677.9A CN201910947677A CN111844056A CN 111844056 A CN111844056 A CN 111844056A CN 201910947677 A CN201910947677 A CN 201910947677A CN 111844056 A CN111844056 A CN 111844056A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J11/00—Manipulators not otherwise provided for
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J18/00—Arms
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
- G01N33/53—Immunoassay; Biospecific binding assay; Materials therefor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
- G01N33/53—Immunoassay; Biospecific binding assay; Materials therefor
- G01N33/5302—Apparatus specially adapted for immunological test procedures
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/10—Devices for transferring samples or any liquids to, in, or from, the analysis apparatus, e.g. suction devices, injection devices
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Abstract
The invention provides a low-noise mechanical self-locking rotating arm device and a using method thereof. The square shaft cross section is square, increases the stability of square shaft, has effectively stopped the instability of the rocking arm that brings because of mechanical structure's wearing and tearing, through the vertical motion of realizing the square shaft with complex lead screw and nut seat, makes the square shaft drive by the nut seat completely in the motion process, realizes the auto-lock, because of self gravity descends when effectively having avoided proruption situation such as outage, causes the application of sample needle to prick the instrument on, the condition of hitting the application of sample needle bad.
Description
Technical Field
The invention relates to the field of full-automatic magnetic particle chemiluminescence immunoassay, in particular to a low-noise mechanical self-locking rotating arm device and a using method thereof.
Background
A mechanical rotating arm for sampling and adding a reagent of a full-automatic magnetic particle chemiluminescence immunoassay analyzer is one of the key components of the full-automatic magnetic particle chemiluminescence immunoassay analyzer. The motion precision, speed and stability of the mechanical rotating arm have very important influence on the detection of the instrument, and the mechanical rotating arm is one of the key technologies of the full-automatic magnetic particle chemiluminescence immunoassay analyzer. At present, mechanical rotating arms in the prior art are all of metal structures, generally ball splines or stainless steel guide shafts and various metal structures such as linear guide rails, but the metal structures have abrasion phenomena during relative movement, the more serious the abrasion is, the larger the noise is, the lower the movement precision after abrasion is caused, the abrasion is inconsistent, the product consistency is poor, and adverse effects are caused on the work of a full-automatic magnetic particle chemiluminescence immunoassay analyzer and the analysis report results thereof.
Disclosure of Invention
The invention aims to overcome the defects of the traditional technology and provides a low-noise mechanical rotating arm device which has high stability and protects a sample adding needle and is used for a full-automatic magnetic particle chemiluminescence immunoassay analyzer and a using method thereof.
The aim of the invention is achieved by the following technical measures: the utility model provides a mechanical auto-lock rocking arm device of low noise which characterized in that: the square shaft sample injection device comprises a square shaft and a square shaft sleeve matched with the square shaft, wherein one end of the square shaft is connected with a cantilever, the other end of the square shaft penetrates through the nut seat fixedly connected with the square shaft sleeve, one end, far away from the square shaft, of the cantilever is connected with a sample injection needle, the square shaft sleeve is in transmission connection with a first driving device driving the square shaft to rotate, the nut seat is in matching connection with a lead screw, the lead screw is parallel to the square shaft, and the lead screw is in transmission connection with a second driving device driving the square shaft to rotate.
The first driving device drives the square shaft sleeve to rotate, the square shaft sleeve drives the square shaft to rotate, the square shaft rotates to drive the cantilever to rotate, the square shaft replaces metal structural parts such as a traditional ball spline and a linear shaft, the four-side positioning of the square shaft and the square shaft sleeve is larger than the contact area of traditional spline balls, the positioning and guiding effects are better, the cross section of the square shaft is square, the stability of the square shaft is improved, and the instability of the rotating arm caused by the abrasion of a mechanical structure is effectively avoided; therefore, the sample adding needle is rotated to the position of a reagent, the second driving device drives the screw rod to rotate, the rotation of the screw rod is converted into the movement in the vertical direction by the nut seat, the nut seat drives the square shaft, the cantilever and the sample adding needle to vertically move up and down, the sample adding needle is lifted and lowered to finish the sample absorbing and sample adding actions, sudden situations occur when an experiment is carried out, when an instrument is powered off, the whole mechanical arm loses power support, the traditional mechanical arm usually descends due to dead weight, the sample adding needle is punctured on the instrument to damage the sample adding needle, in the self-locking rotating arm, the screw rod vertically moves up and down, the screw rod helical angle can automatically self-lock after the power off, the phenomenon of firing pin cannot occur, the sample adding needle is effectively protected, and the damage of all external factors to the sample.
As a preferable scheme, the square shaft sleeve comprises an inner sleeve and an outer sleeve, the outer sleeve is provided with an inner sleeve hole matched with the inner sleeve, the inner sleeve is located in the inner sleeve hole, and the inner sleeve is provided with a square hole matched with the square shaft.
Preferably, the nut seat is slidably connected with a guide shaft, and the guide shaft is parallel to the square shaft.
As a preferred scheme, the supporting frame is further provided, the square shaft sleeve, the screw rod, the guide shaft, the first driving device and the second driving device are all arranged on the supporting frame, the supporting frame comprises an upper supporting plate, a lower supporting plate and a side supporting plate, one end of the side supporting plate is fixedly connected with the upper supporting plate, and the other end of the side supporting plate is fixedly connected with the lower supporting plate.
Preferably, the support upper plate is provided with a first connecting hole, and a first bearing matched with the outer sleeve is arranged in the first connecting hole.
As a preferred scheme, the support upper plate is fixedly connected with a bearing seat, the bearing seat is arranged below the first connecting hole, a second bearing is arranged in the bearing seat, and the bearing seat is connected with the outer sleeve through the second bearing.
Preferably, one end of the screw rod is connected with the upper support plate through a third bearing, and the other end of the screw rod penetrates through the nut seat and is connected with the lower support plate through a fourth bearing.
As a preferred scheme, the first driving device comprises a first motor, a first synchronous pulley, a second synchronous pulley and a synchronous belt, an output shaft of the first motor is fixedly connected with the first synchronous pulley, the first synchronous pulley and the second synchronous pulley are connected through the synchronous belt, and the second synchronous pulley is fixedly sleeved on the outer sleeve.
As a preferred scheme, the second driving device comprises a second motor, a first belt pulley, a second belt pulley and a belt, an output shaft of the second motor is fixedly connected with the first belt pulley, the second belt pulley is fixedly sleeved on the screw rod, and the first belt pulley is connected with the second belt pulley through the belt.
First drive arrangement drive square shaft rotates, and the square shaft drives cantilever and application of sample needle and turns to the application of sample position, and second drive arrangement drive lead screw rotates, and the lead screw will rotate the removal of turning into the nut, and the nut drives the square shaft and moves down, drives the application of sample needle through the cantilever and reachs application of sample department, begins the application of sample, and second drive arrangement passes through nut and lead screw drive square shaft and moves up after the application of sample finishes, and application of sample department is kept away from to the application of sample needle, and the application of sample is accomplished.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the advantages that:
The invention provides a low-noise mechanical self-locking rotating arm device, which has the advantages that the four-side positioning by using a square shaft and a square shaft sleeve has larger contact area than that of the traditional spline ball, the positioning and guiding effects are better, the cross section of the square shaft is square, the stability of the square shaft is improved, the instability of the rotating arm caused by the abrasion of a mechanical structure is effectively avoided, the vertical movement of the square shaft is realized by using a matched lead screw and a nut seat, the square shaft is completely driven by the nut seat in the movement process, the self-locking is realized, and the condition that a sample adding needle is pricked on an instrument and the sample adding needle is damaged due to the self gravity reduction in sudden conditions such as power failure is effectively avoided.
The invention is further described with reference to the following figures and detailed description.
Drawings
Fig. 1 is a schematic diagram of the overall structure of a low-noise mechanical self-locking rotating arm device.
Fig. 2 is a schematic diagram of the overall structure of a low-noise mechanical self-locking rotating arm device.
Fig. 3 is a schematic structural view of a support frame of a low-noise mechanical self-locking rotating arm device.
Fig. 4 is a schematic structural diagram of a first driving device of a low-noise mechanical self-locking rotating arm device of the invention.
Fig. 5 is a schematic structural diagram of a second driving device of a low-noise mechanical self-locking rotating arm device according to the invention.
Fig. 6 is a partial structural schematic view of a low-noise mechanical self-locking rotating arm device of the invention.
Fig. 7 is a structural schematic diagram of an outer sleeve of a low-noise mechanical self-locking rotating arm device.
FIG. 8 is a schematic diagram of an inner sleeve structure of a low-noise mechanical self-locking tumbler device according to the present invention.
FIG. 9 is a schematic view of a connecting column structure of a low-noise mechanical self-locking rotating arm device.
Fig. 10 is a schematic structural view of a nut seat of a low-noise mechanical self-locking rotating arm device.
Fig. 11 is a schematic structural view of a sliding block of a low-noise mechanical self-locking rotating arm device.
Fig. 12 is a schematic diagram of the structure of the middle block of the low-noise mechanical self-locking rotating arm device.
Detailed Description
Example (b): as shown in fig. 1-12, a low-noise mechanical self-locking rotating arm device includes a square shaft 1 and a square shaft sleeve engaged with the square shaft, one end of the square shaft 1 is connected with a cantilever 3, the other end of the square shaft 1 passes through a nut seat 41 fixedly connected to the square shaft sleeve, one end of the cantilever 3 away from the square shaft 1 is connected with a sample injection needle 31, the square shaft sleeve is connected with a first driving device for driving the square shaft to rotate in a transmission manner, the nut seat 41 is engaged with a lead screw 42, the lead screw 42 is arranged in parallel with the square shaft 1, and the lead screw 42 is connected with a second driving device for driving the square shaft to rotate in a transmission manner.
The first driving device drives the square shaft sleeve to rotate, the square shaft sleeve drives the square shaft 1 to rotate, the square shaft 1 rotates to drive the cantilever 3 to rotate, the square shaft replaces traditional ball splines, linear shafts and other metal structural parts, the four-side positioning of the square shaft and the square shaft sleeve is larger than the traditional spline ball contact area, the positioning and guiding effect is better, the cross section of the square shaft is square, the stability of the square shaft is improved, the square shaft is made of aluminum alloy, the weight of the square shaft is obviously superior to that of splines and other metal parts, the weight of the square shaft is only one third of that of the metal parts, and the vibration problem caused by the weight problem is fundamentally avoided; therefore, the sample adding needle 31 is rotated to the position of a reagent, the second driving device drives the screw rod 42 to rotate, the rotation of the screw rod 42 is converted into the movement in the vertical direction by the nut seat 41, the nut seat 41 drives the square shaft 1, the cantilever 3 and the sample adding needle 31 to vertically move up and down, the sample adding needle 31 is lifted and lowered to finish a sample sucking and sample adding action, when an experiment is carried out, a sudden situation occurs, when the instrument is powered off, the whole mechanical arm loses power support, the traditional mechanical arm usually descends due to self weight, the sample adding needle is pricked on the instrument to crash the sample adding needle, in the self-locking rotating arm, as the screw rod vertically moves up and down, the screw rod helical angle can automatically self-lock after the power off, the phenomenon of needle striking can not occur, the sample adding needle is effectively protected, and the damage of all.
As shown in fig. 6 to 8, the square shaft sleeve comprises an inner sleeve 22 and an outer sleeve 21, the outer sleeve 21 is provided with an inner sleeve hole 211 matched with the inner sleeve 22, the inner sleeve 22 is positioned in the inner sleeve hole 211, and the inner sleeve 22 is provided with a square hole 221 matched with the square shaft 1. The circumference of the outer sleeve 21 is provided with a second connecting hole 212, the circumference of the inner sleeve 22 is provided with a third connecting hole 222, a connecting column penetrates through the second connecting hole 212 and the third connecting hole 222 to fix the outer sleeve 21 and the inner sleeve 22, the square shaft 1 penetrates through the square hole 221, the used square shaft sleeve is made of wear-resistant special plastic, the effect of being more wear-resistant than metal parts can be achieved, and instability of the rotating arm caused by wear of a mechanical structure is effectively avoided.
As shown in fig. 1-2, the nut holder 41 is slidably connected with a guide shaft 7, the guide shaft 7 is parallel to the square shaft 1, the screw 42 converts the rotational motion into the linear motion of the nut holder 41, and the guide shaft 7 enables the nut holder 41 to slide along the screw, and in this embodiment, two guide shafts 7 are provided, the guide shafts 7 perform a guiding function, and support three points together with the vertical screw 42 to determine a plane, so as to achieve an effect of stable lifting, and the nut holder 41 drives the square shaft 1, the cantilever 3 and the sample injection needle 31 to vertically move up and down, so as to achieve that the sample injection needle 31 ascends and descends to complete a sample injection and sample injection action.
As shown in fig. 1 to 3, the device further includes a support frame, the square shaft sleeve, the lead screw 42, the guide shaft 7, the first driving device and the second driving device are all disposed on the support frame, the support frame includes a support upper plate 81, a support lower plate 82 and a support side plate 83, one end of the support side plate 83 is fixedly connected with the support upper plate 81, and the other end is fixedly connected with the support lower plate 82. The screw rod 42 and the guide shaft 7 are both arranged between the upper supporting plate 81 and the lower supporting plate 82, two ends of the guide shaft 7 are fixedly connected with the upper supporting plate 81 and the lower supporting plate 82, and the screw rod 42 is driven by the second driving device to rotate, so that one end of the screw rod 42 is connected with the upper supporting plate 81 through a third bearing, and the other end of the screw rod 42 penetrates through the nut seat 41 and is connected with the lower supporting plate 82 through a fourth bearing.
The supporting upper plate 81 is provided with a first connecting hole 811, and a first bearing 812 matched with the outer sleeve 21 is arranged in the first connecting hole 811.
As shown in fig. 1-2, a bearing housing 813 is fixedly connected to the supporting upper plate 81, as shown in fig. 3, the supporting upper plate 81 is provided with a fourth connecting hole 814, the bearing housing is provided with a fifth connecting hole 815, the fourth connecting hole 814 and the fifth connecting hole 815 are connected by a fastening bolt, so that the bearing housing 813 is fixed to the supporting upper plate 81, as shown in fig. 6, the bearing housing 813 is disposed below the first connecting hole 811, a second bearing is disposed in the bearing housing 813, and the bearing housing 813 is connected to an outer sleeve through the second bearing.
As shown in fig. 4, the first driving device includes a first motor 51, a first synchronous pulley 52, a second synchronous pulley 53 and a synchronous belt 54, an output shaft of the first motor 51 is fixedly connected to the first synchronous pulley 52, the first synchronous pulley 52 and the second synchronous pulley 53 are connected by the synchronous belt 54, and the second synchronous pulley 53 is fixedly sleeved on the outer sleeve 21. As shown in fig. 1, 2 and 4, the first driving device is installed on the upper supporting plate 81, the first motor 51 is fixed to the upper supporting plate 81 through the motor frame 55 below the upper supporting plate 81, the output end of the first motor 51 passes through the upper supporting plate 81 and is fixedly connected to the first synchronous pulley 52, the synchronous belt 54 and the second synchronous pulley 53 are all arranged above the upper supporting plate 81, as shown in fig. 4 and 6, the second synchronous pulley 53 is sleeved on the outer sleeve 21 and is fixedly connected to the outer sleeve 21, as shown in fig. 6, the second synchronous pulley 53 is circumferentially provided with an eighth connecting hole 56, the second connecting hole 212 and the third connecting hole 222 are all matched with each other, and the second synchronous pulley 53, the outer sleeve 21 and the inner sleeve 22 are fixedly connected through the connecting shaft passing through the eighth connecting hole 56, the second connecting hole 212 and the third connecting hole 222 in sequence, meanwhile, in order to stably connect the outer sleeve 21 and the second timing pulley 53, as shown in fig. 6 to 7, one end of the outer sleeve 21 is provided with a fixing ring 213, the fixing ring 213 is provided with a sixth connecting hole 214, and the second timing pulley 53 is axially provided with a ninth connecting hole to fix the second timing pulley and the outer sleeve again.
As shown in fig. 6, in order to ensure the contact area between the sleeve and the square shaft 1, the length of the whole sleeve is greater than the thickness of the supporting upper plate 81, the outer side of the outer sleeve 21 is sequentially connected with a second synchronous pulley 53, the supporting upper plate 81 and a bearing seat 813 from top to bottom, wherein the outer sleeve 21 is connected with the supporting upper plate 81 through a first bearing 812 and connected with the bearing seat 813 through a second bearing.
As shown in fig. 1, fig. 2 and fig. 5, the second driving device includes a second motor 61, a first belt pulley 62, a second belt pulley 63 and a belt 64, an output shaft of the second motor 61 is fixedly connected to the first belt pulley 62, the second belt pulley 63 is fixedly sleeved on the screw rod 42, and the first belt pulley 62 is connected to the second belt pulley 63 through the belt 64.
As shown in fig. 3, a fixing plate 84 is fixedly connected to a lower portion of the supporting side plate 83, the supporting side plate 83 is provided with a tenth connecting hole 831 fixedly connected to the fixing plate 84 through a fastening bolt, the fixing plate 84 is arranged parallel to the supporting base plate 82 and fixedly connected to the supporting base plate 82 through a connecting column 841, the connecting column 841 is specifically shaped as shown in fig. 9, and two ends of the connecting column 841 are matched with bolts in threaded connection. The second motor 61 is placed above the fixing plate 84, an output shaft of the second motor 61 penetrates through the fixing plate 84 to be connected with the first belt pulley 62, a belt hole 832 is formed below the supporting side plate 83, the first belt pulley 62 is located below the fixing plate 84, the second belt pulley 63 is located on the side, away from the fixing plate 84, of the supporting side plate 83, the belt 64 penetrates through the belt hole 832 to connect the first belt pulley 62 with the second belt pulley 63, the second belt pulley 63 is fixedly sleeved on the lead screw 42, the lead screw 42 is in threaded connection with the nut seat 41, rotation of the lead screw 42 is converted into linear motion of the nut seat 41, and therefore the square shaft 1 is lifted.
The specific shape of the nut seat 41 is as shown in fig. 10, the whole nut seat is divided into two parts, namely a sliding block 411 and an intermediate block 412, and the sliding block 411 and the intermediate block 412 are detachably connected through bolts. As shown in fig. 11, a fixed cavity 413 is provided inside the sliding block 411, an opening of the fixed cavity 413 is arranged towards the middle block 412, the fixed cavity 413 is provided with a thread block 414 in a matching manner, the thread block 414 is provided with an internal thread matching with the lead screw 42, as shown in fig. 12, the middle block 412 is provided with a sliding hole 415 and a limiting hole 416, the guide shaft 7 passes through the sliding hole 415 and is connected with the middle block 412 in a sliding manner, one end of the square shaft 1 is fixed in the limiting hole 416 and is fixedly connected with the middle block 412, the limiting hole 416 is provided with a fixing ring 417 and a pressing plate 418, one end of the square shaft 1 is sleeved on the fixing ring 417 and is fixedly connected with the fixing ring 417, the pressing plate 418 is pressed on the limiting hole 416 and is fixedly connected with the middle block 412, the thread block 414 is installed in the fixed cavity 413, the second driving device drives the lead screw 42 to rotate, the thread block 414, slider 411 and middle piece 412 fixed connection to drive middle piece 412 up-and-down motion, middle piece 412 makes self-motion more stable along the motion of guiding axle 7, and middle piece 412 and square shaft 7 fixed connection drive square shaft 7 up-and-down motion simultaneously, thereby make application of sample needle 31 up-and-down motion, accomplish the application of sample.
First drive arrangement drive square shaft 7 rotates, square shaft 7 drives cantilever 3 and application of sample needle 31 and changes the application of sample position, second drive arrangement drive lead screw 42 rotates, lead screw 42 will rotate and turn into the removal of nut seat 41, nut seat 41 drives square shaft 7 downstream, drive application of sample needle 31 through cantilever 3 and reach application of sample department, begin the application of sample, second drive arrangement drives square shaft 7 through nut seat 41 and lead screw 42 and moves upwards after the application of sample finishes, application of sample needle 31 keeps away from application of sample department, the application of sample is accomplished.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. The utility model provides a mechanical auto-lock rocking arm device of low noise which characterized in that: the square shaft sample injection device comprises a square shaft and a square shaft sleeve matched with the square shaft, wherein one end of the square shaft is connected with a cantilever, the other end of the square shaft penetrates through the nut seat fixedly connected with the square shaft sleeve, one end, far away from the square shaft, of the cantilever is connected with a sample injection needle, the square shaft sleeve is in transmission connection with a first driving device driving the square shaft to rotate, the nut seat is in matching connection with a lead screw, the lead screw is parallel to the square shaft, and the lead screw is in transmission connection with a second driving device driving the square shaft to rotate.
2. A low noise mechanical latching tumbler apparatus according to claim 1, wherein: the square shaft sleeve comprises an inner sleeve and an outer sleeve, the outer sleeve is provided with an inner sleeve hole matched with the inner sleeve, the inner sleeve is located in the inner sleeve hole, and the inner sleeve is provided with a square hole matched with the square shaft.
3. A low noise mechanical latching tumbler apparatus according to claim 2, wherein: the nut seat is connected with a guide shaft in a sliding mode, and the guide shaft is parallel to the square shaft.
4. A low noise mechanical latching tumbler apparatus according to any one of claims 1 to 3, wherein: the support frame comprises an upper supporting plate, a lower supporting plate and a side supporting plate, one end of the side supporting plate is fixedly connected with the upper supporting plate, and the other end of the side supporting plate is fixedly connected with the lower supporting plate.
5. A low noise mechanical latching tumbler apparatus according to claim 4, wherein: the support upper plate is provided with a first connecting hole, and a first bearing matched with the outer sleeve is arranged in the first connecting hole.
6. A low noise mechanical latching tumbler apparatus according to claim 5, wherein: the support upper plate is fixedly connected with a bearing seat, the bearing seat is arranged below the first connecting hole, a second bearing is arranged in the bearing seat, and the bearing seat is connected with the outer sleeve through the second bearing.
7. A low noise mechanical latching tumbler apparatus according to claim 6, wherein: one end of the screw rod is connected with the upper supporting plate through a third bearing, and the other end of the screw rod penetrates through the nut seat and is connected with the lower supporting plate through a fourth bearing.
8. A low noise mechanical latching tumbler apparatus according to any one of claims 1 to 3, wherein: the first driving device comprises a first motor, a first synchronous belt wheel, a second synchronous belt wheel and a synchronous belt, the output shaft of the first motor is fixedly connected with the first synchronous belt wheel, the first synchronous belt wheel and the second synchronous belt wheel are connected through the synchronous belt, and the second synchronous belt wheel is fixedly sleeved on the outer sleeve.
9. A low noise mechanical latching tumbler apparatus according to any one of claims 1 to 3, wherein: the second driving device comprises a second motor, a first belt pulley, a second belt pulley and a belt, wherein an output shaft of the second motor is fixedly connected with the first belt pulley, the second belt pulley is fixedly sleeved on the screw rod, and the first belt pulley is connected with the second belt pulley through the belt.
10. The use method of the low-noise mechanical self-locking rotating arm device according to claim 1, wherein the method comprises the following steps: first drive arrangement drive square shaft rotates, and the square shaft rotates and drives cantilever and application of sample needle and transfer to the application of sample position, and second drive arrangement drive lead screw rotates, and the lead screw will rotate the removal of turning into the nut, and the nut drives the square shaft and moves down, drives the application of sample needle through the cantilever and reachs application of sample department, begins the application of sample, and second drive arrangement passes through nut and lead screw drive square shaft and moves up after the application of sample finishes, and application of sample department is kept away from to the application of sample needle, and the application of sample is accomplished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910947677.9A CN111844056A (en) | 2019-10-08 | 2019-10-08 | Low-noise mechanical self-locking rotating arm device and using method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910947677.9A CN111844056A (en) | 2019-10-08 | 2019-10-08 | Low-noise mechanical self-locking rotating arm device and using method |
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| CN111844056A true CN111844056A (en) | 2020-10-30 |
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| CN201910947677.9A Pending CN111844056A (en) | 2019-10-08 | 2019-10-08 | Low-noise mechanical self-locking rotating arm device and using method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113075395A (en) * | 2021-03-19 | 2021-07-06 | 南京诺尔曼生物技术股份有限公司 | Improved measuring chamber mechanism and light shading method thereof |
| CN113075395B (en) * | 2021-03-19 | 2024-10-29 | 南京诺尔曼生物技术股份有限公司 | Improved measuring chamber mechanism and light shielding method thereof |
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| JPH01221673A (en) * | 1988-02-29 | 1989-09-05 | Toshiba Corp | Automatic chemical analyzing device |
| CN201892682U (en) * | 2010-09-07 | 2011-07-06 | 北京宏润达科技发展有限公司 | Sample application arm |
| CN206960503U (en) * | 2017-07-13 | 2018-02-02 | 南京迪格诺斯生物技术有限公司 | A kind of sample adding instrument provided with guider |
| CN207908534U (en) * | 2018-02-08 | 2018-09-25 | 山东艾科达生物科技有限公司 | A kind of rotary sample addition arm assembly with agitating function |
| CN208554253U (en) * | 2018-08-03 | 2019-03-01 | 武汉中浩生物技术有限公司 | A kind of automation reagent adding system |
Cited By (2)
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| CN113075395A (en) * | 2021-03-19 | 2021-07-06 | 南京诺尔曼生物技术股份有限公司 | Improved measuring chamber mechanism and light shading method thereof |
| CN113075395B (en) * | 2021-03-19 | 2024-10-29 | 南京诺尔曼生物技术股份有限公司 | Improved measuring chamber mechanism and light shielding method thereof |
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Application publication date: 20201030 |