CN109900526A - A kind of vertical driving mechanism, sampling apparatus and sample analyser - Google Patents
A kind of vertical driving mechanism, sampling apparatus and sample analyser Download PDFInfo
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- 238000000034 method Methods 0.000 claims abstract description 12
- 230000001360 synchronised effect Effects 0.000 claims description 73
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 38
- 238000004458 analytical method Methods 0.000 claims description 15
- 230000005571 horizontal transmission Effects 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 9
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- 239000000758 substrate Substances 0.000 claims description 4
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims 2
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 238000004140 cleaning Methods 0.000 description 10
- 238000003825 pressing Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 3
- 210000004369 blood Anatomy 0.000 description 2
- 239000008280 blood Substances 0.000 description 2
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- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 description 1
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- 239000012491 analyte Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000601 blood cell Anatomy 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000009365 direct transmission Effects 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The present invention relates to a kind of vertical driving mechanisms, and including vertical-transmission component, the vertical principal arm and the bearing assembly that are connected on vertical-transmission component, which is fixedly connected with vertical principal arm, for forcing in sampling needle during driving sampling needle vertical movement.And the sampling apparatus comprising the vertical driving mechanism, it further include horizontal drive mechanism, vertical driving mechanism and horizontal drive mechanism are connect with sampling needle, and are fixed on the base.Further relate to the sample analyser with sampling apparatus.In the automatic sample analyzer that vertical driving mechanism and sampling apparatus of the invention is applied to, pass through the linkage of bearing assembly, it realizes horizontal drive and the linkage of component is vertically driven, simplify product structure, and reduces the setting of power motor, while reducing the energy consumption in product sampling process.
Description
Technical field
The present invention relates to medical instruments fields, more particularly to the automatic sample analyzer and use of analysis liquid sample
Sampling apparatus on the analyzer, and the vertical driving mechanism for making it move vertically for sampling apparatus.
Background technique
Following background technique is used to help reader and understands the present invention, and is not construed as the prior art.
Automatic sample analyzer has been widely used for medical detection field, such as analyzes blood sample with these analyzers
This, the analyte ingredient in urine specimen needs to realize the acquisition of blood by sampling needle, adopts in blood cell analysis
Sample needle realizes the movement of horizontal and vertical directions using transmission mechanism.
Such as Chinese patent CN200620054318.9 using two degrees of freedom sampling mechanism include base, lifting drive part,
Deflect force piece, synchronous belt, lifting connector, sampling needle slide block assembly, deflection connector, guiding axis and yawing axis, the lifting
Force piece and deflection force piece are mounted on the base, which is mounted on the base by the vertical shape of synchronous pulley, should
Synchronous pulley and lifting drive part link, which is fixed on synchronous belt and links with sampling needle slide block assembly, should
It is inclined with this that deflection connector and deflection force piece linkage, the guiding axis and the vertical shape of yawing axis are mounted on the sampling needle slide block assembly
Turn between connector, and the sampling needle slide block assembly loop is on the guiding axis and the yawing axis.It is sampled by toothed belt transmission
Needle slide block assembly is vertically moved up or down along guiding axis.The patented technology cannot achieve the horizontal movement of sampling needle.
There is also need the motor using relatively high power to complete to adopt for the sampling apparatus of existing automatic sample analyzer
Sample, the cost of analyzer is high, and time-consuming for sampling, and installation accuracy requires high, and production efficiency is low and use process is reprocessed
The improved aspect of the high needs of rate.
Summary of the invention
The purpose of the present invention is to provide a kind of vertical driving mechanism first, being capable of low-power and efficient driving sampling cartridge
The sampling needle vertical movement set.
Specifically, the present invention is achieved through the following technical solutions:
For drive sampling apparatus sampling needle movement vertical driving mechanism, including vertical-transmission component, be connected to it is vertical
Vertical principal arm and bearing assembly on direct-transmission component, the bearing assembly are fixedly connected with vertical principal arm, for sampling in driving
Sampling needle is forced in during needle vertical movement.
Vertical driving mechanism drive vertical principal arm to move vertically upwards during when, bearing assembly is driven by vertical principal arm
It moves upwards, generation is carried by upward power and sampling needle is pushed to move upwards.Vertical driving mechanism drive vertical principal arm to
Under move vertically during when, bearing assembly is moved downward by the drive of vertical principal arm, is generated downward power and is carried and draw and adopts
Sample needle moves downward；Simultaneously as sampling needle increases self weight together with bearing assembly, downward power is increased, is more advantageous to
Puncture of the sampling needle to sample storehouse.
As in preferred embodiment, bearing assembly includes horizontal guide slot and idler wheel, and idler wheel is located in horizontally-guided
In slot；The horizontal guide slot is fixedly connected with vertical principal arm；The idler wheel is connect with sampling needle.Some specific embodiments
In, idler wheel is connected with sampling needle by sampling needle fixing seat.
As in preferred embodiment, bearing assembly includes horizontally-guided axis and linear bearing, and linear bearing is socketed in
On horizontally-guided axis；Horizontally-guided axis is fixedly connected with vertical principal arm；Linear bearing is connect with sampling needle.Some specific implementations
In scheme, linear bearing is connected with sampling needle by sampling needle fixing seat.
As in preferred embodiment, vertical-transmission component includes motor, shaft, the first driving wheel being connected to motor
Be connected with the rotating shaft first rotating shaft wheel；The number of teeth of the first rotating shaft wheel is greater than the first driving wheel.
As in preferred embodiment, vertical-transmission component further includes the second shaft wheel for being connected to the shaft other end,
Synchronous pulley, the first synchronous belt on the first driving wheel and first rotating shaft wheel are located on the second shaft wheel and synchronous pulley
The second synchronous belt；Vertical principal arm is connected on the second synchronous belt.
As in preferred embodiment, vertical-transmission component further includes first straight line guiding pair, vertical principal arm and first
The connection of straight-line guidance pair.
On the other hand, the present invention also provides a kind of sampling apparatuses, and including vertical driving mechanism of the invention, bearing assembly makes
Sampling needle is able to achieve the movement of horizontal and vertical directions, is simplified and reduces energy consumption.
Specifically, the sampling apparatus of the analyzer for analyzing liquid sample of the invention, for analyzing liquid sample
Analyzer, including
Sampling needle and sampling needle fixing seat, sampling needle are fixed in sampling needle fixing seat；
Pedestal；
Horizontal drive mechanism on pedestal, including bracket and horizontal transmission component is connect with bracket；
Sampling needle fixing seat and the third straight-line guidance pair slidable connection being arranged on bracket；
Vertical driving mechanism on pedestal, including vertical principal arm and the vertical-transmission component being connect with vertical principal arm；
Bearing assembly, the bearing assembly are fixedly connected with vertical principal arm；The bearing assembly is in driving sampling needle vertical movement
Sampling needle and sampling needle fixing seat are forced in the process；And the bearing assembly carries during driving sampling needle horizontal movement
And guide sampling needle and sampling needle fixing seat horizontal rectilinear motion.
Wherein, horizontal drive mechanism driving does horizontal rectilinear motion using needle fixing seat and sampling needle.Vertical driving mechanism
Driving does vertical linear motion using needle fixing seat and sampling needle.
Vertical driving mechanism drive vertical principal arm to move vertically upwards during when, bearing assembly is driven by vertical principal arm
It moves upwards, generation is carried by upward power and sampling needle fixing seat and sampling needle is pushed to move upwards.Vertical driving mechanism
When during driving vertical principal arm to move vertically downwards, bearing assembly is moved downward by the drive of vertical principal arm, is generated downward
Power carries and draws sampling needle fixing seat and sampling needle moves downward；Simultaneously as bearing assembly is connect with sampling needle fixing seat,
Self weight is increased, downward power is increased, is more advantageous to puncture of the sampling needle to sample storehouse.
As in preferred embodiment, bearing assembly includes horizontal guide slot and idler wheel；The horizontal guide slot and hang down
Straight principal arm is fixedly connected；The idler wheel is fixed on sampling needle fixing seat, and is located in horizontal guide slot；Move horizontally bracket
When, horizontal guide slot carries idler wheel in vertical direction, and sampling needle fixing seat and sampling needle is guided to move horizontally；It is vertical to move
When moving vertical principal arm, the horizontal guide slot being fixed on vertical principal arm and the idler wheel in horizontal guide slot are and then made vertically
Mobile, idler wheel carries sampling needle fixing seat and sampling needle, is vertically moved together along third straight-line guidance pair.
As in preferred embodiment, bearing assembly includes horizontally-guided axis and linear bearing；Horizontally-guided axis and hang down
Straight principal arm is fixedly connected；Linear bearing is fixed in sampling needle fixing seat；Linear bearing is socketed on horizontally-guided axis；Level is moved
When dynamic bracket, linear bearing carrying sampling needle fixing seat is simultaneously slided on horizontally-guided axis, drives sampling needle fixing seat and sampling
Needle moves horizontally；When vertically moving vertical principal arm, the horizontally-guided axis that is fixed on vertical principal arm and it is socketed in level and leads
Linear bearing on axis is and then for vertical movement, and linear bearing carries sampling needle fixed mechanism and sampling needle, together along
Third straight-line guidance pair is vertically moved.
As in preferred embodiment, vertical-transmission component includes motor and shaft on pedestal, is connected with motor
The first driving wheel for connecing and it is connected with the rotating shaft first rotating shaft wheel；The number of teeth of the first rotating shaft wheel is greater than the first driving wheel.
As in preferred embodiment, vertical-transmission component further includes the second shaft wheel for being connected to the shaft other end,
Synchronous pulley on pedestal, the first synchronous belt on the first driving wheel and first rotating shaft wheel are located at the second shaft wheel
With the second synchronous belt on synchronous pulley；Vertical principal arm is connected on the second synchronous belt.
As in preferred embodiment, vertical-transmission component further includes fixed first straight line guiding pair on the base,
Vertical principal arm and first straight line guiding pair slidable connection.
In vertical-transmission component, the first driving wheel of motor driven, drive first rotating shaft wheel and the second shaft wheel with it is synchronous
Belt wheel rotation, makees vertical line fortune along first straight line guiding pair to also drive the second synchronous belt and be connected to vertical principal arm
It is dynamic.
As in preferred embodiment, horizontal transmission component includes another motor on pedestal, with another motor
Second driving wheel of connection, another synchronous pulley on substrate and be connected to the second driving wheel and another synchronous pulley it
Between third synchronous belt；Bracket is fixed on third synchronous belt.Bracket is fixedly connected by screw and pressing plate with third synchronous belt.
As in preferred embodiment, horizontal transmission component further includes fixed second straight line guiding pair on the base,
Bracket and second straight line guiding pair slidable connection.
In horizontal transmission component, another the second driving wheel of motor driven drives another synchronous pulley to rotate, to drive the
Three synchronous belts and bracket make horizontal rectilinear motion along second straight line guiding pair.
As in preferred embodiment, vertical principal arm is fixedly connected with the inner slide of first straight line guiding pair；It is vertical main
Arm is fixedly connected by screw and pressing plate with the second synchronous belt.
Swab is cleaned as being arranged one in preferred embodiment, on bracket；Sampling needle is located in cleaning swab.
It on the other hand, further include for dividing the present invention also provides a kind of sample analyser, including sample storehouse and analysis component
The sampling apparatus of the analyzer of liquid sample is analysed, which includes:
Sampling needle and sampling needle fixing seat, sampling needle are fixed in sampling needle fixing seat；
Pedestal；
Horizontal drive mechanism on pedestal, including bracket and horizontal transmission component is connect with bracket；
Sampling needle fixing seat is connect with the third straight-line guidance pair being arranged on bracket；
Vertical driving mechanism on pedestal, including vertical principal arm and the vertical-transmission component being connect with vertical principal arm；
Bearing assembly, the bearing assembly are fixedly connected with vertical principal arm；The bearing assembly is in driving sampling needle vertical movement
Sampling needle and sampling needle fixing seat are forced in the process；And the bearing assembly carries during driving sampling needle horizontal movement
And guide sampling needle and sampling needle fixing seat horizontal rectilinear motion.
As in preferred embodiment, bearing assembly includes horizontal guide slot and idler wheel；The horizontal guide slot and hang down
Straight principal arm is fixedly connected；The idler wheel is fixed on sampling needle fixing seat, and is located in horizontal guide slot；Move horizontally bracket
When, horizontal guide slot carries idler wheel in vertical direction, and sampling needle fixing seat and sampling needle is guided to move horizontally；It is vertical to move
When moving vertical principal arm, the horizontal guide slot being fixed on vertical principal arm and the idler wheel in horizontal guide slot are and then made vertically
Mobile, idler wheel forces in sampling needle fixing seat and sampling needle, is vertically moved together along third straight-line guidance pair.
As in another preferred embodiment, bearing assembly includes horizontally-guided axis and linear bearing；Horizontally-guided axis
It is fixedly connected with vertical principal arm；Linear bearing is fixed in sampling needle fixing seat；Linear bearing is socketed on horizontally-guided axis；Water
When translating dynamic bracket, linear bearing carrying sampling needle fixing seat is simultaneously slided on horizontally-guided axis, drive sampling needle fixing seat and
Sampling needle moves horizontally；When vertically moving vertical principal arm, the horizontally-guided axis that is fixed on vertical principal arm and it is socketed in water
Linear bearing on flat guiding axis is and then for vertical movement, and linear bearing forces in sampling needle fixed mechanism and sampling needle, together
It is vertically moved along third straight-line guidance pair.
As in preferred embodiment, vertical-transmission component includes motor and shaft on pedestal, is connected with motor
The first driving wheel for connecing and it is connected with the rotating shaft first rotating shaft wheel；The number of teeth of the first rotating shaft wheel is greater than the first driving wheel.
As in another preferred embodiment, vertical-transmission component further includes the second shaft for being connected to the shaft other end
Wheel, the synchronous pulley on pedestal, the first synchronous belt on the first driving wheel and first rotating shaft wheel are located at the second shaft
The second synchronous belt on wheel and synchronous pulley；Vertical principal arm is connected on the second synchronous belt；Vertical-transmission component further includes fixing
First straight line guiding pair on the base, vertical principal arm and first straight line guiding pair slidable connection.
As in another preferred embodiment, branch horizontal transmission component includes another motor on pedestal, and another
Second driving wheel of one motor connection, another synchronous pulley on substrate and be connected to the second driving wheel with it is another synchronous
Third synchronous belt between belt wheel；Bracket is fixed on third synchronous belt；Horizontal transmission component further includes fixing on the base
Second straight line guiding pair, bracket and second straight line guiding pair slidable connection.
As in another preferred embodiment, vertical principal arm is fixedly connected with the inner slide of first straight line guiding pair；It hangs down
Straight principal arm is fixedly connected by screw and pressing plate with the second synchronous belt.
Swab is cleaned as being arranged one in another preferred embodiment, on bracket；Sampling needle is located in cleaning swab.
Beneficial effect
In the automatic sample analyzer that vertical driving mechanism and sampling apparatus of the invention is applied to, pass through bearing assembly
Linkage, realize horizontal drive and be vertically driven component linkage, simplify product structure, and reduce power motor
Setting, while reducing the energy consumption in product sampling process.
Vertical movable portion realizes the amplification of output torque, i.e., the stepping of same specification by the way that certain transmission ratio is added
Motor can drive bigger load or provide bigger puncture torque.The transmission mechanism of vertical movement uses toothed belt transmission, at
This is lower, and the speed of vertical movement can be adjusted according to actual condition.Complete puncture sampling action during, need to export compared with
Big puncture torque exports biggish torque by control stepper motor with lower speed and realizes；It does not need to export at other
In the case where puncturing torque, control stepper motor is run with higher speed, to save the time-consuming of sampling mechanism.
The transmitting for sampling needle fixation device movement in vertical direction and power, by the horizontally-guided being fixed on vertical principal arm
Idler wheel (such as camshaft bearing follower) on slot and sampling needle fixation device cooperates, and can directly be driven and be adopted by horizontal guide slot
Idler wheel in sample needle fixing seat is completed to puncture sampling action.Reduce accuracy of manufacture requirement.
Horicontal motion mechanism and vertical movement mechanism are installed on same pedestal, reduce wanting for manufacture and assembly precision
It asks, sheet metal designing few by number of parts reaches low cost.
Detailed description of the invention
Fig. 1 is the front view of sampling apparatus horizontal driving section of the invention；
Fig. 2 is the isometric side view of sampling apparatus vertical driving section of the invention；
Fig. 3 is the front view of sampling apparatus vertical driving section of the invention；
Fig. 4 is the partial elevation view of sampling arrangement samples needle vertical sliding motion part of the invention；
Fig. 5 is the partial side view of sampling arrangement samples needle vertical sliding motion part of the invention；
Fig. 6 is the top view of sampling arrangement samples needle vertical sliding motion part and horizontal driving section of the invention；
Fig. 7 is the side view of sampling arrangement samples needle vertical sliding motion part and vertical driving section of the invention；
Fig. 8 is another embodiment schematic diagram of sampling apparatus of the invention；
Fig. 9 is the schematic diagram of a sample analyser of the invention.
Specific embodiment
The invention will be further described with example with reference to the accompanying drawing:
Specific design scheme explanation is incorporated by reference to Fig. 1 -- and 9.
Vertical driving mechanism of the invention includes vertical-transmission component, the vertical principal arm being connected on vertical-transmission component,
And bearing assembly, wherein bearing assembly is fixedly connected with vertical principal arm, drives vertical principal arm vertical by vertical-transmission component
Movement, and the bearing assembly being connected on vertical principal arm moves vertically together with vertical principal arm, thus, driving carried component is held
The sampling needle of load moves vertically.As shown in Figure 1-Figure 3, vertical-transmission component includes motor 7, shaft 10, be connected to motor
One driving wheel 8 and it is connected with the rotating shaft first rotating shaft wheel 9；The number of teeth of the first rotating shaft wheel 9 is greater than the first driving wheel 8.And
First rotating shaft wheel 9 and the gear ratio of the first driving wheel 8 are bigger, and the load or power that can be driven are bigger.To realize with lesser
Motor power drives the loaded article of relatively large load to move.Vertical-transmission component further includes be connected to 10 other end of shaft second
Shaft wheel 11, synchronous pulley 14, the first synchronous belt 12 on the first driving wheel 8 and first rotating shaft wheel 9 are located at the second shaft
Wheel 11 and the second synchronous belt 13 and first straight line guiding pair 16 on synchronous pulley 14；It is same that vertical principal arm 15 is connected to second
Walk band 13 on, and with 16 slidable connection of first straight line guiding pair.Motor 7 drives the first driving wheel 8, drives first rotating shaft wheel
9 and second shaft wheel 11 and synchronous pulley 14 rotate, to also drive the second synchronous belt 13 and be connected to vertical principal arm 15
Make vertical linear motion or sliding along first straight line guiding pair 16.
Specifically, bearing assembly includes horizontal guide slot 43 and idler wheel 21, shown in Fig. 1-7, idler wheel 21 is located at leads in level
Into slot 43, and horizontal guide slot 43 is fixedly connected with vertical principal arm 15；And idler wheel 21 and sampling needle 18 are by using needle
In fixing seat 19.When vertically moving vertical principal arm 15, the horizontal guide slot 43 that is fixed on vertical principal arm and led positioned at level
Idler wheel 21 into slot is and then for vertical movement, idler wheel 21 and horizontal guide slot 43 carry together sampling needle 18 act as it is vertical
Movement.
In another specific embodiment, bearing assembly includes horizontally-guided axis and linear bearing, shown in Fig. 8, linear bearing
40 are socketed on horizontally-guided axis 39；Horizontally-guided axis 39 is fixedly connected with vertical principal arm 41；Linear bearing 40 and sampling needle are solid
Reservation 42 connects.When vertically moving vertical principal arm 15, the horizontally-guided axis 39 that is fixed on vertical principal arm and it is socketed in level
Linear bearing 40 on guiding axis is and then for vertical movement, linear bearing and horizontally-guided axis 39 carry sampling needle one act as it is vertical
Straight movement.
As shown in figures 1-8, sampling apparatus of the invention includes pedestal 1, sampling needle 18, sampling needle fixing seat 19 or 42, with
And the horizontal drive mechanism of driving sampling needle fixing seat horizontal movement, the perpendicular drive machine of driving sampling needle fixing seat vertical movement
Structure and bearing assembly etc..Wherein, vertical driving mechanism includes the vertical principal arm that component is vertically driven and is attached thereto, carrying group
Part is connect with vertical principal arm.Vertical principal arm vertical movement is driven wherein by vertical-transmission component, and pedestal 1 is by a plate shape substrates structure
At horizontal drive mechanism and vertical driving mechanism are respectively positioned on pedestal 1.
In specific embodiment, shown in Fig. 2 and Fig. 3, vertical-transmission component includes motor 7, shaft 10, first straight line guiding
Pair 16 and the first driving wheel 8, first rotating shaft wheel 9, the second shaft wheel 11 and synchronous pulley 14, and it is located at the first driving wheel 8
With the first synchronous belt 12 on first rotating shaft wheel 9, the second synchronous belt 13 on the second shaft wheel 11 and synchronous pulley 14.Its
In, motor 7, shaft 10 and first straight line guiding pair 16 are fixed on pedestal 1, specifically, being fixed on 1 back side of pedestal；First turn
Axis wheel 9 and the second shaft wheel 11 are located at the both ends of shaft 10.Wherein, the number of teeth of first rotating shaft wheel 9 is greater than the first driving wheel
8.Specifically, motor 7 is stepper motor.During being driven behaviour, the stepper motor 7 on pedestal 1 drives the first driving wheel 8, the
One driving wheel 8 drives first rotating shaft wheel 9 to rotate by the first synchronous belt 12, since the number of teeth of first rotating shaft wheel 9 is greater than
It is fixed on the number of teeth of the first driving wheel 8 of progressive 7 shaft end of motor, in synchronization, the revolving speed of first rotating shaft wheel 9 is less than stepping electricity
The revolving speed of machine 7, so that the torque that first rotating shaft wheel 9 exports is greater than the torque of stepper motor 7.First rotating shaft wheel 9 and be fixed on turn
Second shaft wheel 11 of 10 other side of axis is both secured to same shaft 10, the second shaft wheel 11 work synchronous with first rotating shaft wheel 9
Rotary motion, the second shaft wheel 11 are consistent with the revolving speed of first rotating shaft wheel 9 and torque.In the present invention, first rotating shaft wheel 9 and second
The gear ratio of driving wheel 8 is bigger, and the load or power that can be driven are bigger.In some specific embodiments, first rotating shaft wheel 9 and
The gear ratio of two driving wheels 8 is greater than 1, preferably 2:1.
As shown in figure 3, synchronous pulley 14 is arranged at 1 back side of pedestal, combined with the second shaft wheel 11 and the second synchronous belt 13
At another toothed belt transmission combination 30.Second synchronous belt 13 is connect with vertical principal arm 15, specifically, passing through screw 26 and a pressing plate
27 are fixedly connected with synchronous belt 13 with vertical principal arm 15.First straight line guiding pair 16 is fixed on the back side of pedestal 1, vertically to set
Meter, vertical principal arm 15 and 16 slidable connection of first straight line guiding pair, specifically, with screw 28 by vertical principal arm 15 be set to
16 inner slide 29 of second straight line guiding pair on pedestal 1 is fixedly connected, and vertical principal arm 15 can be slided along second straight line guiding pair 16.
Vertical principal arm 15 is driven to make the detailed process of vertical linear motion along second straight line guiding pair 16 are as follows: the driving of stepper motor 7 first
Synchronous belt 12 is realized by the gear ratio of first rotating shaft wheel 9 and the first driving wheel 8 and slows down and increase torque, then drives synchronous belt
Transmission combination 30 drives vertical principal arm 15 to make vertical linear motion along second straight line guiding pair 16.
In specific embodiment, horizontal drive mechanism includes another motor 2, third synchronous belt 4, the second driving wheel 3, another
Synchronous pulley (not shown), bracket 5 and second straight line guiding pair 6, third synchronous belt 4 is wound on the first driving wheel and another
On synchronous pulley.Another motor can be stepper motor.Another stepper motor 2 and the second driving wheel 3 are arranged on pedestal 1, more
For specifically, stepper motor 2 is fixed on 1 back side of pedestal, the second driving wheel 3 is located at 1 front of pedestal, passes through the connection progress of pedestal 1
Motor 2；Second straight line guiding pair 6 is horizontally fixed on 1 front of pedestal.It is same that bracket 5 by screw 22 and pressing plate 23 is fixed on third
It walks on band 4.Meanwhile bracket 5 is connect with the inner slide 25 on second straight line guiding pair 6, is oriented to bracket 5 in second straight line
Secondary 6 horizontal rectilinear motions (sliding).It is specific to design the second driving wheel 3 of driving of stepper motor 2 as shown in Figure 1, on pedestal 1,
Third synchronous belt 4 is fixedly connected with bracket 5 by screw 22 and pressing plate 23, by bracket 5 and is set on pedestal 1 with screw 24
6 inner slide 25 of second straight line guiding pair be fixedly connected, by stepper motor 2 drive the second driving wheel 3 rotation, drive third it is same
4 horizontal conveyor of band is walked, so that the bracket being fixed on third synchronous belt 5 be made to make horizontal rectilinear motion along second straight line guiding pair 6.
In the present invention, sampling needle 18 is fixed in the sampling needle fixing seat 19, specifically, being incited somebody to action by screw 33 and pressing plate 34
Sampling needle 18 is fixed on sampling needle fixing seat 19.Third straight-line guidance pair 20, sampling needle fixing seat 19 are vertically and fixedly provided on bracket 5
With secondary 20 slidable connections of third straight-line guidance, specifically, screw 35 is by sampling needle fixing seat 19 and third straight-line guidance pair 20
Inner slide 36 is fixedly connected, and sampling needle fixing seat 19 can make Vertical Free sliding along third straight-line guidance pair 20, such as Fig. 4 and Fig. 5
It is shown.
It is same that a cleaning swab 17 is set as shown in Figure 4 and Figure 5, on bracket 5, there is the function cleaned to 18 outer arm of sampling needle
Can, specifically, cleaning swab is located at 5 bottom of bracket.More specifically, a cleaning swab 17 is fixed with screw 31 on bracket 5, adopted
Sample needle 18 runs through the cleaning hole 32 being placed in inside cleaning swab 17, and sampling needle 18 will not take off during moving vertically
From cleaning hole 32, cleaning swab 17 has the function of cleaning to 18 outer arm of sampling needle.
In one embodiment of the present of invention, bearing assembly includes horizontal guide slot 43 and idler wheel 21.Wherein, horizontal guide slot
43 are fixedly connected with vertical principal arm 15；Specifically, being fixedly connected with a horizontal guide slot 43 with screw 37 on vertical principal arm 15.Idler wheel
21 are fixed in sampling needle fixing seat 19, and more specifically, idler wheel 21 is fixed on 19 front of sampling needle fixing seat.Meanwhile idler wheel
21 are located in horizontal guide slot 43, and under power drive, idler wheel 21 can roll in horizontal guide slot 43.The idler wheel 21 can be with
Bear certain radial load.In some embodiments, 21 preferred cam bearing follower of idler wheel.
Therefore, when moving horizontally bracket 5 by horizontal transmission component, horizontal guide slot 43 carries idler wheel in vertical direction
While 21, idler wheel 21 is also rolled in horizontal guide slot 43, and sampling needle fixing seat 19 and sampling needle 18 is guided to move horizontally,
As shown in Figure 5 and Figure 6.
As shown in fig. 7, when vertically moving vertical principal arm 15 by being driven thermomechanical components, the level that is fixed on vertical principal arm 15
Guide groove 43 is and then for vertical movement, by idler wheel 21 and the carrying of horizontal guide slot 43 and with sampling needle fixing seat 19 and sampling
Needle 18 is vertically moved along third straight-line guidance pair 20.That is, being fixed on vertical principal arm 15 when vertically moving vertical principal arm 15
On horizontal guide slot 43 it is and then for vertical movement, horizontal guide slot 43 carry in vertical direction and guide roller 21, sampling
Needle fixing seat 19 and sampling needle 18 are vertically moved along straight-line guidance pair 20.
Sampling needle 18 needs to transmit biggish power between horizontal guide slot 43 and idler wheel 21 in puncturing sampling process, because
This, in some embodiments, horizontal guide slot 43 need to use larger rigid material.It is preferred that 304 steel.
In other embodiments of the invention, bearing assembly includes horizontally-guided axis 39 and linear bearing 40；Horizontally-guided
Axis 39 is fixedly connected with vertical principal arm 41；Linear bearing 40 is fixed in sampling needle fixing seat 42；Horizontally-guided axis 39 passes through straight
Spool holds 40.Specifically, as shown in figure 8, horizontally-guided axis 39 is fixedly connected with vertical principal arm 41 by screw 38, level is led
The linear bearing 40 being fixed in sampling needle fixing seat 42 is passed through to axis 39.When moving horizontally bracket 5, linear bearing 40 is in level
It is slided on guiding axis 39, sampling needle fixed mechanism and sampling needle is driven to move horizontally；When vertically moving vertical principal arm, it is fixed on
Horizontally-guided axis on vertical principal arm is and then for vertical movement, and sampling needle fixed mechanism is carried and guided by linear bearing and is adopted
Sample needle is vertically moved along third straight-line guidance pair.
The linear motion referred in the present invention is not to be confined to realize by synchronous belt drive mechanism, can also pass through silk
Bar transmission, rack pinion etc. replace realization in the more well known mode in mechanical major field.
In the present invention, as shown in figure 9, sample analyser includes sampling apparatus 45 and sample storehouse 44 of the invention and divides
Analyse component 46.It further include the shell for accommodating sampling apparatus 45 and analysis component 46, sample storehouse 44 is fixed on the side wall of shell.It is logical
The operation of over-sampling device 45, sampling needle 18 move horizontally between sample storehouse 44 and analysis component 46.And when sampling needle 18 exists
When the drive of sampling apparatus 45 is moved at sample storehouse 44 or analysis component 46, sampling needle 18 is then in vertical motion, from
And it realizes the absorption of sample in sample storehouse 18 and sample is discharged into the function at analysis component 46.
Just the specific sampling process of sampling apparatus and sample analyser of the invention is described in detail below.
It is specific to execute step are as follows:
(1) sampling apparatus 45 is in initial bit, i.e. 18 horizontal direction of sampling needle is located at right above sample storehouse 44, vertical direction
Positioned at upper (home position), horizontal motor 2 is locked at this time；
(2) it executes the vertical movement of sampling apparatus 45 to bottom and punctures sampling, driving motor 7 keeps vertical principal arm 15 straight along first
16 vertical downward movement of line guiding pair drives horizontal guide slot 43 and idler wheel 21 to move downwardly together, to drive sampling needle solid
Reservation and sampling needle slide into 44 upper surface of sample storehouse along third vertically-guided pair 20 downward vertically and puncture sampling；
(3) after the completion of sampling, sampling apparatus 45 executes vertical movement to upper, and driving motor 7 makes vertical principal arm 15 along the
The lower vertical of one straight line guiding pair 16 moves upwards, and horizontal guide slot 43 and idler wheel 21 is driven to move upwardly together, idler wheel and
Horizontal guide slot drives sampling needle fixing seat and sampling needle vertically to lead along third while carrying sample needle fixing seat and sampling needle
To secondary 20 upward vertical sliding motions to home position (upper)；
(4) motor vertical 7 locks；
(5) sampling apparatus 45 executes right above horizontal movement to analysis component 46, and horizontal motor 2 drives driving wheel 3 to drive
Bracket 5 in the present invention right above 6 horizontal movement of second straight line guiding pair (moving right) to analysis component 46；It fixes at this time
Sampling needle fixing seat and use needle on bracket are rolled in horizontal guide slot by idler wheel and are moved right together with bracket
To analysis component 46；Particularly, it is located at right above analysis component 46 using needle；
(6) horizontal motor 2 locks；
(7) sampling apparatus 45 executes vertical movement and carries out a point sample to (bottom) in analysis component 46, and driving motor 7 makes vertically
Principal arm 15 drives horizontal guide slot 43 and idler wheel 21 to move downwardly together along 16 vertical downward movement of first straight line guiding pair, from
And sampling needle fixing seat and sampling needle is driven to be slid into analysis component 46 downward vertically along third vertically-guided pair 20；
(8) divide after the completion of sample, execute vertical movement to upper, driving motor 7 is oriented to vertical principal arm 15 along first straight line
The lower vertical of pair 16 moves upwards, and drives horizontal guide slot 43 and idler wheel 21 to move upwardly together, idler wheel and horizontal guide slot
While carrying sample needle fixing seat and sampling needle, drive sampling needle fixing seat and sampling needle upward along third vertically-guided pair 20
Vertical sliding motion is to home position (upper)；
(9) after completing above-mentioned steps, motor vertical 7 is locked；
(10) sampling shaft is reset to initial bit, and horizontal motor 2 drives driving wheel 3 that bracket 5 is driven to be oriented to along second straight line
Secondary 6 horizontal movements (moving downward in the present invention) are to initial bit；Sampling needle fixing seat and the use being fixed on bracket at this time
Needle is rolled in horizontal guide slot by idler wheel and is moved downward together with bracket to initial bit.
Claims (14)
1. for drive sampling apparatus sampling needle movement vertical driving mechanism, which is characterized in that including vertical-transmission component,
Vertical principal arm and the bearing assembly being connected on vertical-transmission component, the bearing assembly are fixedly connected with vertical principal arm, are used for
Sampling needle is forced in during driving sampling needle vertical movement.
2. vertical driving mechanism according to claim 1, which is characterized in that bearing assembly includes horizontal guide slot and rolling
Wheel, idler wheel are located in horizontal guide slot；The horizontal guide slot is fixedly connected with vertical principal arm；The idler wheel and sampling needle connect
It connects.
3. vertical driving mechanism according to claim 1, which is characterized in that bearing assembly includes horizontally-guided axis and straight line
Bearing, linear bearing are socketed on horizontally-guided axis；Horizontally-guided axis is fixedly connected with vertical principal arm；Linear bearing and sampling needle
Connection.
4. vertical driving mechanism described in one of -3 according to claim 1, which is characterized in that vertical-transmission component includes motor,
Shaft, the first driving wheel being connected to motor and is connected with the rotating shaft first rotating shaft wheel；The number of teeth of the first rotating shaft wheel is greater than
First driving wheel.
5. vertical driving mechanism according to claim 4, which is characterized in that vertical-transmission component further includes being connected to shaft
Second shaft wheel of the other end, synchronous pulley, the first synchronous belt on the first driving wheel and first rotating shaft wheel are located at second
The second synchronous belt on shaft wheel and synchronous pulley；Vertical principal arm is connected on the second synchronous belt.
6. vertical driving mechanism according to claim 1, which is characterized in that vertical-transmission component further includes that first straight line is led
To pair, vertical principal arm and first straight line guiding pair slidable connection.
7. the sampling apparatus for the analyzer for analyzing liquid sample, which is characterized in that including
Sampling needle and sampling needle fixing seat, sampling needle are fixed in sampling needle fixing seat；
Pedestal；
Horizontal drive mechanism on pedestal, including bracket and the horizontal transmission component being connect with bracket；
Sampling needle fixing seat is connect with the third straight-line guidance pair being arranged on bracket；
Vertical driving mechanism on pedestal, including vertical principal arm and the vertical-transmission component being connect with vertical principal arm；
Bearing assembly, the bearing assembly are fixedly connected with vertical principal arm；The bearing assembly is in driving sampling needle vertical movement process
In force in sampling needle and sampling needle fixing seat；And the bearing assembly carries and draws during driving sampling needle horizontal movement
Lead sampling needle and sampling needle fixing seat horizontal rectilinear motion.
8. sampling apparatus according to claim 7, which is characterized in that bearing assembly includes horizontal guide slot and idler wheel；Institute
Horizontal guide slot is stated to be fixedly connected with vertical principal arm；The idler wheel is fixed on sampling needle fixing seat, and is located in horizontal guide slot
It is interior；When moving horizontally bracket, horizontal guide slot carries idler wheel in vertical direction, and sampling needle fixing seat and sampling needle is guided to make
Horizontal movement；When vertically moving vertical principal arm, it is fixed on the horizontal guide slot on vertical principal arm and is located in horizontal guide slot
Idler wheel it is and then for vertical movement, idler wheel forces in sampling needle fixing seat and sampling needle, together along third straight-line guidance pair make
Vertical movement.
9. sampling apparatus according to claim 7, which is characterized in that bearing assembly includes horizontally-guided axis and linear axis
It holds；Horizontally-guided axis is fixedly connected with vertical principal arm；Linear bearing is fixed in sampling needle fixing seat；Linear bearing is socketed in water
On flat guiding axis；When moving horizontally bracket, linear bearing carrying sampling needle fixing seat is simultaneously slided on horizontally-guided axis, and drive is adopted
Sample needle fixing seat and sampling needle move horizontally；When vertically moving vertical principal arm, the horizontally-guided axis that is fixed on vertical principal arm
And the linear bearing being socketed on horizontally-guided axis is and then for vertical movement, linear bearing force in sampling needle fixed mechanism and
Sampling needle is vertically moved along third straight-line guidance pair together.
10. the sampling apparatus according to one of claim 7-9, which is characterized in that vertical-transmission component includes being located at pedestal
On motor and shaft, the first driving wheel being connected to motor and be connected with the rotating shaft first rotating shaft wheel；The first rotating shaft wheel
The number of teeth be greater than the first driving wheel.
11. sampling apparatus according to claim 10, which is characterized in that vertical-transmission component further includes that be connected to shaft another
The second shaft wheel of one end, the synchronous pulley on pedestal are synchronous with first on first rotating shaft wheel positioned at the first driving wheel
Band, the second synchronous belt on the second shaft wheel and synchronous pulley；Vertical principal arm is connected on the second synchronous belt；Vertical-transmission
Component further includes fixed first straight line guiding pair on the base, vertical principal arm and first straight line guiding pair slidable connection.
12. sampling apparatus according to claim 10, which is characterized in that horizontal transmission component includes another on pedestal
One motor, the second driving wheel connecting with another motor and are connected to the second transmission at another synchronous pulley on substrate
Third synchronous belt between wheel and another synchronous pulley；Bracket is fixed on third synchronous belt；Horizontal transmission component further includes solid
Fixed second straight line guiding pair on the base, bracket and second straight line guiding pair slidable connection.
13. a kind of sample analyser, including sample storehouse and analysis component, which is characterized in that further include for analyzing liquid sample
Analyzer sampling apparatus, which includes sampling needle and sampling needle fixing seat, and sampling needle, which is fixed on sampling needle, to be fixed
On seat；
Pedestal；
Horizontal drive mechanism on pedestal, including bracket and horizontal transmission component is connect with bracket；
Sampling needle fixing seat is connect with the third straight-line guidance pair being arranged on bracket；
Vertical driving mechanism on pedestal, including vertical principal arm and the vertical-transmission component being connect with vertical principal arm；
Bearing assembly, the bearing assembly are fixedly connected with vertical principal arm；The bearing assembly is in driving sampling needle vertical movement process
In force in sampling needle and sampling needle fixing seat；And the bearing assembly carries and draws during driving sampling needle horizontal movement
Lead sampling needle and sampling needle fixing seat horizontal rectilinear motion.
14. sample analyser according to claim 13, which is characterized in that bearing assembly includes horizontal guide slot and rolling
Wheel；The horizontal guide slot is fixedly connected with vertical principal arm；The idler wheel is fixed on sampling needle fixing seat, and is located at and leads in level
Into slot；When moving horizontally bracket, horizontal guide slot carries idler wheel in vertical direction, and guides sampling needle fixing seat and sampling
Needle moves horizontally；When vertically moving vertical principal arm, the horizontal guide slot that is fixed on vertical principal arm and it is located at horizontally-guided
Idler wheel in slot is and then for vertical movement, and idler wheel forces in sampling needle fixing seat and sampling needle, together along third straight-line guidance
Pair is vertically moved.
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| CN201910237733.XA CN109900526A (en) | 2019-03-27 | 2019-03-27 | A kind of vertical driving mechanism, sampling apparatus and sample analyser |
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|---|---|---|---|
| CN201910237733.XA CN109900526A (en) | 2019-03-27 | 2019-03-27 | A kind of vertical driving mechanism, sampling apparatus and sample analyser |
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| CN109900526A true CN109900526A (en) | 2019-06-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN120063801A (en) * | 2023-11-30 | 2025-05-30 | 深圳市帝迈生物技术有限公司 | Sampling module and sample analyzer |
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