CN113188845B - Rotary-cut type real-time sampling system - Google Patents
Rotary-cut type real-time sampling system Download PDFInfo
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- CN113188845B CN113188845B CN202110615103.9A CN202110615103A CN113188845B CN 113188845 B CN113188845 B CN 113188845B CN 202110615103 A CN202110615103 A CN 202110615103A CN 113188845 B CN113188845 B CN 113188845B
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- 238000005070 sampling Methods 0.000 title claims abstract description 164
- 230000007246 mechanism Effects 0.000 claims abstract description 54
- 238000005520 cutting process Methods 0.000 claims abstract description 35
- 238000003756 stirring Methods 0.000 claims abstract description 17
- 230000005540 biological transmission Effects 0.000 claims abstract description 14
- 230000003247 decreasing effect Effects 0.000 claims abstract description 4
- 239000000725 suspension Substances 0.000 claims description 17
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 230000009194 climbing Effects 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 abstract description 3
- 230000001360 synchronised effect Effects 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 239000003245 coal Substances 0.000 description 8
- 238000002360 preparation method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000009826 distribution Methods 0.000 description 3
- 239000002562 thickening agent Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/38—Diluting, dispersing or mixing samples
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Hydrology & Water Resources (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a rotary-cut type real-time sampling system which comprises a stirring motor, a transmission mechanism, a rotary-cut sampling device, a lifting motor and a lifting mechanism, wherein the stirring motor is connected with the transmission mechanism; the transmission mechanism comprises a plurality of sampling rotating shafts, the sampling rotating shafts are formed by nesting and connecting a plurality of sections of sleeves with diameters gradually decreasing downwards, and a positioning block is fixed on the periphery of the lower end of each section of sleeve; the cross section of the periphery of the positioning block is in a sawtooth ring shape, and the positioning block is meshed, nested and connected with the rotary cutting sampling device; the stirring motor works to enable the sampling rotating shaft to rotate so as to drive a rotary cutting pipe in the rotary cutting sampling device to rotate for sampling; the lifting motor works to shorten or lengthen the hinge rope in the lifting mechanism so as to drive the rotary cutting sampling device to lift and descend. The system can realize real-time synchronous sampling of liquid sites in the concentration tanks in different radial directions and transverse directions, can realize timely lifting of the rotary-cut sampling device and the sampling rotating shaft, avoids collision with the climbing frame of the concentration machine, and ensures normal operation of the concentration tank.
Description
Technical Field
The invention relates to the technical field of concentration measurement, in particular to a rotary-cut type real-time sampling system.
Background
The slime water treatment is one of important links of the coal preparation plant, and the quality of the slime water treatment effect has a great relationship with the efficiency, quality index and the like of the coal preparation plant, and even affects the economic benefit and the social benefit of the coal preparation plant. The distribution condition of the concentration of the slime water in the outdoor rake type thickener is an important parameter in the slime water treatment process, and the distribution condition of the concentration is an important basis for adding medicaments. If the adding amount of the agent is too small, particles in the slime water can not be completely settled, and the overflow water of the thickener used as circulating water contains too high slime, so that the normal production of a coal preparation plant can be seriously influenced by the overflow water; otherwise, the reagent is wasted, and the normal production of the coal preparation plant is also influenced, so that the knowledge of the concentration distribution condition in the pool is of great significance to the coal preparation plant.
The current common coal slime water sampling method is generally manual sampling, but when the concentration of the coal slime water is detected by manual sampling, the problems of time waste and labor waste exist, the hysteresis is obvious, and the guiding significance is lost.
Therefore, the development of a sampling system which can realize real-time, synchronous and multi-liquid-level point sampling and can not influence the normal operation of a thickener to replace manual sampling is an important research direction for the present person skilled in the art.
Disclosure of Invention
In view of this, the invention provides a rotary-cut real-time sampling system, which has the following specific technical scheme:
a rotary-cut real-time sampling system is integrally arranged on a fixing frame, the fixing frame is arranged on the upper side of a concentration tank, and the length of the fixing frame is the radius length of the concentration tank; the system comprises a stirring motor, a transmission mechanism, a rotary cutting sampling device, a lifting motor and a lifting mechanism;
the stirring motor is longitudinally fixed on the fixing frame and is close to the center of the concentration tank; the transmission mechanism comprises a driving shaft and a plurality of sampling rotating shafts which are longitudinally arranged, and an output shaft of the stirring motor is downwards connected with the driving shaft; the sampling rotating shafts are uniformly arranged along the radial direction of the concentration tank, and each sampling rotating shaft is rotationally connected with the fixing frame through at least one bearing; the driving shaft drives the sampling rotating shaft to rotate through the driving part; the sampling rotating shaft is formed by nesting and connecting a plurality of sections of sleeves with diameters gradually decreasing downwards, and the adjacent sleeves can slide relatively in the vertical direction; a positioning block is fixed on the periphery of the lower end of each section of sleeve; the cross section of the periphery of the positioning block is in a sawtooth ring shape, and the positioning block is meshed, nested and connected with the rotary cutting sampling device;
the number of the rotary-cut sampling devices is consistent with that of the sleeves, the rotary-cut sampling devices comprise a sampling mechanism positioned at the lower part, a collecting mechanism positioned at the upper part and a positioning sleeve integrally penetrating and nested in the centers of the sampling mechanism and the collecting mechanism, the inner side wall of the positioning sleeve is provided with a sawtooth groove corresponding to the periphery of a positioning block, and the positioning sleeve is in meshed and nested connection with the positioning block and can realize relative sliding; the sampling mechanism comprises a sampling groove and a first connecting bearing, wherein the sampling groove comprises a positioning groove positioned at the lower end of the groove body, a rotary cutting pipe positioned on the side wall of the groove body and a first connecting bearing groove positioned at the upper end of the groove body; the positioning sleeve penetrates through the sampling groove and is nested and fixed in the positioning groove, two rotary cutting pipes are arranged and symmetrically arranged along the center of the sampling groove, and the opening directions of the two rotary cutting pipes are opposite; the first connecting bearing is arranged in the first connecting bearing groove; the collecting mechanism comprises a collecting groove and a second connecting bearing, the lower end of the collecting groove is connected with the upper end of the sampling groove through the first connecting bearing, and the collecting groove is communicated with the inner cavity of the sampling groove up and down; the groove wall of the collecting groove is provided with a drainage tube, the upper end of the groove body of the collecting groove is provided with a second connecting bearing groove, and the second connecting bearing is arranged in the second connecting bearing groove; the positioning sleeve penetrates through the collecting tank and is connected with the upper end of the collecting tank through a second connecting bearing; a hanging plate is arranged between the collecting groove and the second connecting bearing groove, and a through hole is arranged on the hanging plate;
the lifting motor is transversely fixed on the fixing frame and is close to the outer edge of the concentration tank; the lifting mechanism comprises a hinged rope and a reel, and an output shaft of the lifting motor is transversely connected with the reel; one end of the hinge rope is wound on the reel, and the other end of the hinge rope passes through the through hole on each hanger plate and then is connected with the hanger plate of the lowest collecting mechanism; the positioning sleeve on the lowest rotary cutting sampling device is fixedly connected with the positioning block at the lowest side of the sampling rotating shaft.
By adopting the technical scheme, the system comprises the stirring motor, the transmission mechanism, the rotary-cut sampling device, the lifting motor and the lifting mechanism, wherein the stirring motor and the transmission mechanism can drive the rotary-cut sampling device to rotate, so that the slime water is passively sucked into the sampling groove through the rotary-cut pipe and then is collected by the collecting groove; the lifting motor and the lifting mechanism can drive the rotary-cut sampling device to lift and descend, and the rotary-cut sampling device can be positioned and limited by nesting a positioning sleeve in the rotary-cut sampling device with a positioning block on the sampling rotating shaft.
Therefore, the system can realize real-time synchronous sampling of liquid sites in different radial and transverse concentration tanks, so that measurement and monitoring of a supernatant layer of the whole concentration tank can be realized through signal conversion and fitting, the accuracy of a fitting model can be effectively ensured when concentration fitting is carried out, the rotary-cut sampling device and the timely lifting of a sampling rotating shaft can be realized, collision with a climbing frame of a concentrator is avoided, and the normal work of the concentration tank is ensured.
Preferably, the driving part comprises gears and chains, each sampling rotating shaft is provided with a gear, and the driving shafts are uniformly distributed with a plurality of gears in the vertical direction and correspond to the gears on the sampling rotating shafts in a parallel mode; two gears on the same horizontal direction on the driving shaft and the sampling rotating shaft are connected through a chain.
Preferably, the upper end of the sampling rotating shaft is rotationally connected with the upper fixing frame through a suspension bearing, a positioning bearing which is concentric with the suspension bearing and is also fixed on the fixing frame is arranged under the suspension bearing, and the sampling rotating shaft is rotationally connected with the lower fixing frame through the positioning bearing.
The suspension bearing can maintain the suspension of the sampling rotation shaft, and the positioning bearing can prevent the sampling rotation shaft from swinging.
Preferably, the suspension bearing is a thrust bearing.
Preferably, the transmission mechanism further comprises a support bearing, the lower part of the driving shaft is connected with the support bearing fixed on the fixing frame, and the support bearing can ensure the stability of driving of the driving shaft.
Preferably, the cross section of the sleeve is in a sawtooth ring shape, adjacent sleeves slide in a nested meshing manner in the vertical direction, radial relative rotation is prevented when the sleeves slide, stable up-down sliding of the sleeves is ensured, and the positioning blocks are meshed and fixed with the corresponding sleeves.
Preferably, the area of the cross section of the inner side wall of the positioning sleeve is larger than the area of the sawtooth annular cross section of the positioning block, so that the positioning block can be nested in the positioning sleeve, and further the rotary cutting sampling device is limited and positioned.
Preferably, the positioning groove is arranged to be wide in section and narrow in section, so that the positioning sleeve can be clamped on the rotary-cut sampling device.
Preferably, the lifting mechanism further comprises a bearing seat, one end of the scroll, far away from the lifting motor, is connected with the bearing seat fixed on the fixing frame through a coupler, and the bearing seat can ensure the stability of the rotation of the scroll.
Preferably, hanging rings are arranged on hanging plates of the collecting mechanism at the lowest part of the sampling rotating shaft, and the other ends of the hinge ropes penetrate through holes on each hanging plate and then are connected with the hanging rings on the hanging plates of the collecting mechanism at the lowest part.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of the overall structure of a rotary-cut real-time sampling system according to the present invention.
Fig. 2 is a schematic structural diagram of a sampling rotation shaft according to the present invention.
Fig. 3 is a schematic diagram of an internal structure of the rotary cutting sampling device in the present invention.
Fig. 4 is a top view of a rotary cutting sampling device according to the present invention.
Fig. 5 is a schematic diagram illustrating connection between a positioning sleeve and a positioning block in the present invention.
In the figure: the device comprises a 1-fixing frame, a 2-concentration tank, a 3-stirring motor, a 4-rotary cutting sampling device, a 5-lifting motor, a 6-driving shaft, a 7-sampling rotating shaft, an 8-sleeve, a 9-positioning block, a 10-sampling mechanism, an 11-collecting mechanism, a 12-positioning sleeve, a 13-sampling groove, a 14-first connecting bearing, a 15-positioning groove, a 16-rotary cutting pipe, a 17-first connecting bearing groove, a 18-collecting groove, a 19-second connecting bearing, a 20-drainage pipe, a 21-second connecting bearing groove, a 22-hanging plate, a 23-through hole, a 24-hinge, a 25-reel, a 26-gear, a 27-chain, a 28-hanging bearing, a 29-positioning bearing, a 30-supporting bearing, a 31-bearing seat and a 32-hanging ring.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Examples:
as shown in fig. 1, the rotary-cut real-time sampling system is integrally arranged on a fixing frame 1, wherein the fixing frame 1 is erected on the upper side of a concentration tank 2, and the length of the fixing frame is equal to the radius length of the concentration tank 2.
In particular, the method comprises the steps of,
the rotary-cut type real-time sampling system comprises a stirring motor 3, a transmission mechanism, a rotary-cut sampling device 4, a lifting motor 5 and a lifting mechanism.
The stirring motor 3 is longitudinally fixed on the fixed frame 1 and is close to the center of the concentration tank 2; the transmission mechanism comprises a longitudinally arranged drive shaft 6 and a number of sampling rotation shafts 7, in this embodiment four sampling rotation shafts 7 are provided. The output shaft of the stirring motor 3 is downwards connected with the driving shaft 6 through a coupler, and the lower part of the driving shaft 6 is in engagement with a support bearing 30 fixed on the fixing frame 1, so that the transmission stability of the driving shaft 6 is ensured.
The four sampling rotating shafts 7 are uniformly arranged along the radial direction of the concentration tank 2, and each sampling rotating shaft 7 is rotationally connected with the fixing frame 1 through at least one bearing; the driving shaft 6 drives the sampling rotating shaft 7 to rotate through the driving component; as shown in fig. 2, the sampling rotation shaft 7 is formed by nesting and connecting a plurality of sections of sleeves 8 with diameters gradually decreasing downwards, and the adjacent sleeves 8 can realize relative sliding in the vertical direction; a positioning block 9 is fixed on the periphery of the lower end of each section of sleeve 8; the cross section of the periphery of the positioning block 9 is in a sawtooth ring shape, and the positioning block is meshed, nested and connected with the rotary-cut sampling device 4.
Specifically, the upper end of the sampling rotation shaft 7 is rotatably connected with the upper fixing frame 1 through a suspension bearing 28, the suspension bearing 28 adopts a thrust bearing, and the upper end of the sampling rotation shaft 7 is fixed with the upper ring of the suspension bearing 28 so as to maintain the suspension of the sampling rotation shaft 7 without influencing rotation. A positioning bearing 29 which is concentric with the suspension bearing 28 and is also fixed on the fixed frame 1 is arranged right below the suspension bearing 28, the sampling rotation shaft 7 is rotatably connected with the lower fixed frame 1 through the positioning bearing 29, and the positioning bearing 29 can prevent the sampling rotation shaft 7 from deflecting. The suspension bearing 28 and the positioning bearing 29 are connected to the uppermost sleeve 8 of the sampling rotation shaft 7.
The driving component comprises gears 26 and chains 27, each sampling rotation shaft 7 is provided with a gear 26, and the driving shaft 6 is uniformly provided with a plurality of gears 26 (four gears 26 in the embodiment) in the vertical direction and corresponds to the gears 26 on the sampling rotation shafts 7 in parallel; two gears 26 in the same horizontal direction on the drive shaft 6 and the sampling rotation shaft 7 are connected by a chain 27. The rotation of the driving shaft 6 can drive the rotation of the sampling rotation shaft 7 through the gear 26 and the chain 27.
In order to further optimize the technical scheme, the cross sections of the sleeve pipes 8 are in a zigzag ring shape, adjacent sleeve pipes 8 slide in a nested meshing manner in the vertical direction, radial relative rotation is prevented when the sleeve pipes 8 slide, stable up-down sliding is ensured, and the positioning blocks 9 are meshed with and fixed with the corresponding sleeve pipes 8.
The number of rotary-cut sampling devices 4 is identical to the number of the bushings 8 (sixteen rotary-cut sampling devices 4 in this embodiment), which are uniformly arranged on each corresponding bushing 8 in the vertical direction, and are positioned by positioning blocks 9 on the bushings 8.
Specifically, as shown in fig. 3 and 4, the rotary-cut sampling device 4 includes a sampling mechanism 10 located at the lower part, a collecting mechanism 11 located at the upper part, and a positioning sleeve 12 integrally penetrating and nested in the centers of the sampling mechanism 10 and the collecting mechanism 11.
As shown in fig. 5, the inner side wall of the positioning sleeve 12 is provided with a serration groove corresponding to the periphery of the positioning block 9, the positioning sleeve 12 is engaged and nested with the positioning block 9, and the positioning sleeve 12 and the positioning block 9 can slide relatively.
Further, the area of the inner side wall of the positioning sleeve 12 needs to be larger than the area of the sawtooth annular section of the positioning block 9, so that the positioning block 9 can be nested in the positioning sleeve 12 and meshed with the positioning sleeve 12, and further limiting and positioning of the rotary cutting sampling device 4 are achieved.
The sampling mechanism 10 comprises a sampling groove 13 and a first connecting bearing 14, wherein the sampling groove 13 comprises a positioning groove 15 positioned at the lower end of the groove body, a rotary cutting pipe 16 positioned at the side wall of the groove body and a first connecting bearing groove 17 positioned at the upper end of the groove body; the positioning sleeve 12 penetrates through the sampling groove 13 and is nested and fixed in the positioning groove 15, as shown in fig. 4, two rotary cutting pipes 16 are arranged symmetrically along the center of the sampling groove 13, and the opening directions of the two rotary cutting pipes 16 are opposite; the first connecting bearing 14 is provided in the first connecting bearing groove 17.
In order to further optimize the technical scheme, the positioning groove 15 can be arranged to be wide in section and narrow in section, so that the positioning sleeve 12 can be clamped and fixed in the positioning groove 15, and falling off is avoided.
The collecting mechanism 11 comprises a collecting groove 18 and a second connecting bearing 19, the lower end of the collecting groove 18 is connected with the upper end of the sampling groove 13 through the first connecting bearing 14, and the collecting groove 18 is communicated with the inner cavity of the sampling groove 13 up and down; a drainage tube 20 is arranged on the wall of the collecting tank 18, a second connecting bearing groove 21 is arranged at the upper end of the tank body of the collecting tank 18, and a second connecting bearing 19 is arranged in the second connecting bearing groove 21; the positioning sleeve 12 extends through the collecting tank 18 and is connected to the upper end of the collecting tank 18 by means of a second connecting bearing 19.
A hanger plate 22 is also arranged between the collecting tank 18 and the second connecting bearing tank 21, and a through hole 23 is arranged on the hanger plate 22. Further, a hanging ring 32 is arranged on the hanging plate 22 of the collecting mechanism 11 positioned at the lowest part of the sampling rotation shaft 7.
The lifting motor 5 is transversely fixed on the fixed frame 1 and is close to the outer edge of the concentration tank 2; the lifting mechanism comprises a hinge rope 24 and a reel 25, an output shaft of the lifting motor 5 is transversely connected with the reel 25, and one end of the reel 25 away from the lifting motor 5 is connected with a bearing seat 31 fixed on the fixing frame 1 through a coupler.
One end of the hinge rope 24 is wound on the reel 25, and the other end of the hinge rope passes through the through hole 23 on each hanger plate 22 and then is connected with the hanging ring 32 on the hanger plate 22 of the lowest collecting mechanism 11; the positioning sleeve 12 on the lowest rotary cutting sampling device 4 is fixedly connected with the positioning block 9 on the lowest side of the sampling rotating shaft 7.
The specific working process of the system of the invention is as follows:
when the system works, the stirring motor 3 drives the driving shaft 6 to rotate, and then the chain 27 drives the sampling rotating shafts 7 in each radial direction to rotate; the sampling groove 13 of the sampling mechanism 10 rotates along with the rotation, the slime water is passively sucked into the sampling groove 13 through the rotary cutting pipe 16, the collecting groove 18 does not rotate along with the rotation of the sampling groove 13, the slime water is pressed into the collecting groove 18 through the sampling groove 13, and then flows out along the drainage pipe 20 to enter a subsequent measuring device.
When the climbing frame is about to pass through the fixing frame 1, the lifting motor 5 is started, the hinging rope 24 is driven to drive the bottommost rotary cutting sampling device 4 to move upwards, the positioning sleeve 12 on the bottommost rotary cutting sampling device 4 is fixedly connected with the bottommost positioning block 9 of the sampling rotating shaft 7, therefore, the bottommost rotary cutting sampling device 4 and the bottommost sleeve 8 of the sampling rotating shaft 7 are lifted together, when the upper top cover of the bottommost rotary cutting sampling device 4 is contacted with the bottom of the last rotary cutting sampling device 4, the positioning sleeve 12 at the lower end of the last rotary cutting sampling device 4 is separated from the corresponding positioning block 9 on the sleeve 8 of the sampling rotating shaft 7, the last rotary cutting sampling device 4 slides upwards along the corresponding sleeve 8, and meanwhile the sleeve 8 also slides upwards, and the same way is adopted until all the rotary cutting sampling devices 4 and the sleeve 8 are lifted to the upper end of the concentration tank 2 (or lifted to the radial position required to be sampled for real-time sampling).
After the climbing frame rotates, the rotary-cut sampling device 4 and the sampling rotating shaft 7 sink into the concentration tank 2 again under the action of gravity, then the stirring motor 3 drives the rotary-cut sampling device 4 to sample in real time, and then the real-time concentration detection and display are carried out through the real-time measuring device.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The rotary-cut type real-time sampling system is characterized in that the system is integrally arranged on a fixing frame, the fixing frame is arranged on the upper side of a concentration tank, and the length of the fixing frame is the radius length of the concentration tank; the system comprises a stirring motor, a transmission mechanism, a rotary cutting sampling device, a lifting motor and a lifting mechanism;
the stirring motor is longitudinally fixed on the fixing frame and is close to the center of the concentration tank; the transmission mechanism comprises a driving shaft and a plurality of sampling rotating shafts which are longitudinally arranged, and an output shaft of the stirring motor is downwards connected with the driving shaft; the sampling rotating shafts are uniformly arranged along the radial direction of the concentration tank, and each sampling rotating shaft is rotationally connected with the fixing frame through at least one bearing; the driving shaft drives the sampling rotating shaft to rotate through the driving part; the sampling rotating shaft is formed by nesting and connecting a plurality of sections of sleeves with diameters gradually decreasing downwards, and the adjacent sleeves can slide relatively in the vertical direction; a positioning block is fixed on the periphery of the lower end of each section of sleeve; the cross section of the periphery of the positioning block is in a sawtooth ring shape, and the positioning block is meshed, nested and connected with the rotary cutting sampling device;
the number of the rotary-cut sampling devices is consistent with that of the sleeves, the rotary-cut sampling devices comprise a sampling mechanism positioned at the lower part, a collecting mechanism positioned at the upper part and a positioning sleeve integrally penetrating and nested in the centers of the sampling mechanism and the collecting mechanism, the inner side wall of the positioning sleeve is provided with a sawtooth groove corresponding to the periphery of a positioning block, and the positioning sleeve is in meshed and nested connection with the positioning block and can realize relative sliding; the sampling mechanism comprises a sampling groove and a first connecting bearing, wherein the sampling groove comprises a positioning groove positioned at the lower end of the groove body, a rotary cutting pipe positioned on the side wall of the groove body and a first connecting bearing groove positioned at the upper end of the groove body; the positioning sleeve penetrates through the sampling groove and is nested and fixed in the positioning groove, two rotary cutting pipes are arranged and symmetrically arranged along the center of the sampling groove, and the opening directions of the two rotary cutting pipes are opposite; the first connecting bearing is arranged in the first connecting bearing groove; the collecting mechanism comprises a collecting groove and a second connecting bearing, the lower end of the collecting groove is connected with the upper end of the sampling groove through the first connecting bearing, and the collecting groove is communicated with the inner cavity of the sampling groove up and down; the groove wall of the collecting groove is provided with a drainage tube, the upper end of the groove body of the collecting groove is provided with a second connecting bearing groove, and the second connecting bearing is arranged in the second connecting bearing groove; the positioning sleeve penetrates through the collecting tank and is connected with the upper end of the collecting tank through a second connecting bearing; a hanging plate is arranged between the collecting groove and the second connecting bearing groove, and a through hole is arranged on the hanging plate;
the lifting motor is transversely fixed on the fixing frame and is close to the outer edge of the concentration tank; the lifting mechanism comprises a hinged rope and a reel, and an output shaft of the lifting motor is transversely connected with the reel; one end of the hinge rope is wound on the reel, and the other end of the hinge rope passes through the through hole on each hanger plate and then is connected with the hanger plate of the lowest collecting mechanism; the positioning sleeve on the lowest rotary cutting sampling device is fixedly connected with the positioning block at the lowest side of the sampling rotating shaft.
2. The rotary-cut type real-time sampling system according to claim 1, wherein the driving component comprises gears and chains, a gear is arranged on each sampling rotating shaft, a plurality of gears are uniformly distributed on the driving shaft in the vertical direction, and the gears are parallel to and correspond to the gears on the sampling rotating shafts; two gears on the same horizontal direction on the driving shaft and the sampling rotating shaft are connected through a chain.
3. The rotary-cut type real-time sampling system according to claim 1 or 2, wherein the upper end of the sampling rotation shaft is rotatably connected with the upper fixing frame through a suspension bearing, a positioning bearing which is concentric with the suspension bearing and is also fixed on the fixing frame is arranged under the suspension bearing, and the sampling rotation shaft is rotatably connected with the lower fixing frame through the positioning bearing.
4. A rotary-cut real-time sampling system according to claim 3, wherein the suspension bearing is a thrust bearing.
5. The rotary-cut type real-time sampling system according to claim 1 or 2, wherein the transmission mechanism further comprises a support bearing, and the lower portion of the driving shaft is connected with the support bearing fixed on the fixing frame.
6. The rotary-cut type real-time sampling system according to claim 1, wherein the cross section of the sleeve is in a zigzag ring shape, adjacent sleeves slide in the vertical direction through nested engagement, and the positioning blocks are engaged and fixed with the corresponding sleeves.
7. The rotational atherectomy real-time sampling system of claim 1, wherein the cross-sectional area of the inner sidewall of the positioning sleeve is greater than the area of the serrated annular cross-section of the positioning block.
8. The rotary-cut type real-time sampling system according to claim 1, wherein the positioning groove is formed to be wider in cross section and narrower in bottom.
9. The rotary-cut type real-time sampling system according to claim 1, wherein the lifting mechanism further comprises a bearing seat, and an end of the reel away from the lifting motor is connected with the bearing seat fixed on the fixing frame through a coupling.
10. The rotary-cut type real-time sampling system according to claim 1, wherein the hanging plate of the collecting mechanism positioned at the lowest part of the sampling rotation shaft is provided with hanging rings, and the other end of the hinge rope penetrates through the through hole of each hanging plate and then is connected with the hanging ring of the hanging plate of the collecting mechanism at the lowest part.
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| CN202110615103.9A CN113188845B (en) | 2021-06-02 | 2021-06-02 | Rotary-cut type real-time sampling system |
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| CN202110615103.9A CN113188845B (en) | 2021-06-02 | 2021-06-02 | Rotary-cut type real-time sampling system |
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