CN110841781A - High-speed tissue grinding instrument - Google Patents
High-speed tissue grinding instrument Download PDFInfo
- Publication number
- CN110841781A CN110841781A CN201911244331.9A CN201911244331A CN110841781A CN 110841781 A CN110841781 A CN 110841781A CN 201911244331 A CN201911244331 A CN 201911244331A CN 110841781 A CN110841781 A CN 110841781A
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- Prior art keywords
- fixedly connected
- linear bearing
- speed tissue
- screw
- normal linear
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C19/00—Other disintegrating devices or methods
- B02C19/0056—Other disintegrating devices or methods specially adapted for specific materials not otherwise provided for
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C19/00—Other disintegrating devices or methods
- B02C19/11—High-speed drum mills
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B9/00—Drives specially designed for centrifuges; Arrangement or disposition of transmission gearing; Suspending or balancing rotary bowls
- B04B9/02—Electric motor drives
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B9/00—Drives specially designed for centrifuges; Arrangement or disposition of transmission gearing; Suspending or balancing rotary bowls
- B04B9/08—Arrangement or disposition of transmission gearing ; Couplings; Brakes
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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
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
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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
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
- G01N2001/2866—Grinding or homogeneising
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- General Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention discloses a high-speed tissue grinder which comprises a bottom plate, a slider-crank mechanism and a vertical plate, wherein the bottom of the vertical plate is fixedly connected with the top of the bottom plate, one side of the vertical plate is fixedly connected with a motor, the slider-crank mechanism comprises an installation block and a crank wheel, one side of the front surface of the installation block is fixedly connected with a guide rod through a first screw, the surface of the guide rod is movably connected with a normal linear bearing, and the interior of the normal linear bearing is movably connected with a normal linear bearing rolling body. The high-speed tissue grinding instrument can realize that the stress states of all rolling elements in the normal linear bearing are completely the same, and has no redundant rolling elements, can better meet the special requirements of the linear bearing in a high-speed mechanism and a heavy-load mechanism, the normal linear bearing directly resists the unidirectional load, and has no redundant rolling elements and reduced volume, thereby effectively saving metal resources and reducing the cost.
Description
Technical Field
The invention relates to the technical field of mechanical automation, in particular to a high-speed tissue grinding instrument.
Background
A high-flux tissue grinder is a common tool for preparing laboratory samples, realizes the crushing, mixing, homogenizing, cell breaking and the like of samples by oscillating tungsten carbide pellets or stainless steel beads back and forth in a sample tube, can quickly crush and homogenize hard, soft and elastic samples, meets the requirements of a physicochemical analysis laboratory, is provided with grinding tanks with different volumes and different materials, can carry out dry grinding, wet grinding and freeze grinding, can also carry out cell breaking and DNA/RNA extraction, and has wide application in various industries such as agriculture, biomedicine, food, quality inspection, colleges and universities.
Generally, the high-speed tissue grinding instrument needs to exceed 70Hz, the corresponding working cycle is 2000, namely, the grinding bottle needs to be driven for 2000 times per minute, the conventional linear bearing is always damaged and cannot adapt to high-speed operation, such high-speed and ultra-high-speed (or heavy-load) mechanisms, the adaptability of the conventional linear bearing is really to be improved due to the fact that the working condition of the conventional linear bearing is very bad, in practice, more damaged devices of the high-speed tissue grinding instrument are linear bearings, the high-speed tissue grinding instrument loses working capacity, and based on the reasons, corresponding technical upgrading is really necessary, and a more targeted linear motion pair is urgently needed to be sought.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a high-speed tissue grinder, which solves the problem that the conventional linear bearing on the high-speed tissue grinder is always damaged and cannot adapt to high-speed operation.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a high-speed tissue grinder, includes bottom plate, slider-crank mechanism and riser, the bottom of riser and the top fixed connection of bottom plate, one side fixedly connected with motor of riser, slider-crank mechanism is including installation piece and crank wheel, the positive one side of installation piece is through first screw fixedly connected with guide arm, the surperficial swing joint of guide arm has normal direction linear bearing, and normal direction linear bearing's inside swing joint has normal direction linear bearing rolling element, and the surface of normal direction linear bearing rolling element contacts with the surface of guide arm.
Preferably, the back surface of the crank wheel is fixedly connected with one end of the output shaft of the motor through a coupler, and the front surface of the crank wheel is fixedly connected with a first bump.
Preferably, the other side of the front surface of the mounting block is fixedly connected with a second bump, and the surface of the first bump is rotatably connected with a first rotating block.
Preferably, the surface of the second bump is rotatably connected with a second rotating block, and a connecting rod is fixedly connected between the opposite sides of the first rotating block and the second rotating block.
Preferably, one end of the guide rod is fixedly connected with a grinding cylinder through a second screw, and the bottom of the inner wall of the grinding cylinder is fixedly connected with a centrifugal cylinder.
Preferably, the top of the grinding cylinder is movably connected with a sealing cover, and the bottom of the sealing cover is fixedly connected with a sealing plug matched with the centrifugal cylinder.
Preferably, the first screw and the second screw are both hexagon socket head cap screws, and the models of the first screw and the second screw are both M5X 12.
Preferably, the top of the bottom plate is provided with a threaded hole.
(III) advantageous effects
The invention provides a high-speed tissue grinder. The method has the following beneficial effects:
(1) the high-speed tissue grinder is fixedly connected with the top of a bottom plate through the bottom of a vertical plate, one side of the vertical plate is fixedly connected with a motor, a slider-crank mechanism comprises an installation block and a crank wheel, the front side of the installation block is fixedly connected with a guide rod through a first screw, the surface of the guide rod is movably connected with a normal linear bearing, the inner part of the normal linear bearing is movably connected with a normal linear bearing rolling body, the surface of the normal linear bearing rolling body is contacted with the surface of the guide rod, the back surface of the crank wheel is fixedly connected with one end of a motor output shaft through a coupler, the front surface of the crank wheel is fixedly connected with a first lug, the other front side of the installation block is fixedly connected with a second lug, the surface of the first lug is rotatably connected with a first rotating block, the surface of the second lug is rotatably connected with a second rotating block, and a connecting rod is fixedly connected, the stress states of all rolling bodies in the normal linear bearing are completely the same, no redundant rolling body exists, the special requirements of the linear bearing in a high-speed mechanism and a heavy-load mechanism can be better met, the technology is upgraded once for the traditional linear bearing, the normal linear bearing directly resists the unidirectional load, no redundant rolling body exists, the size is reduced, metal resources are effectively saved, and the cost is reduced.
(2) This high-speed tissue grinds appearance, the bottom through the bottom of bottom plate sets up threaded hole, and one side fixedly connected with motor of riser can realize carrying out fixed connection with this high-speed tissue grinds appearance and contact surface, keeps grinding the stability of appearance at the during operation, prevents to take place the phenomenon of skew, and the motor can carry out firm connection with the riser simultaneously, provides the holding power for the motor.
(3) This high-speed tissue grinder, one end through the guide arm passes through second screw fixedly connected with grinding vessel, and the bottom fixedly connected with centrifuge bowl of grinding vessel inner wall, the top swing joint of grinding vessel has sealed lid, and the bottom fixedly connected with of sealed lid and the sealing plug of centrifuge bowl looks adaptation, can realize through the inside tungsten carbide bobble of centrifuge bowl or the stainless steel bobble make a round trip to vibrate in intraductal smashing and the mixture that can realize the sample, the sample can be prevented to spill over in the setting of sealed lid and sealing plug simultaneously, sealing performance has been improved.
Drawings
FIG. 1 is a perspective view of the structure of the present invention;
FIG. 2 is a schematic view of a normal linear bearing configuration of the present invention;
FIG. 3 is an operational view of the normal linear bearing configuration of the present invention;
FIG. 4 is a schematic diagram illustrating the evolution of a conventional linear bearing structure of the present invention from a normal linear bearing structure;
FIG. 5 is a cross-sectional force analysis diagram of a normal linear bearing configuration of the present invention.
In the figure: 1-bottom plate, 2-crank block mechanism, 21-mounting block, 22-first screw, 23-crank wheel, 24-guide rod, 25-normal linear bearing, 26-normal linear bearing rolling body, 27-first lug, 28-second lug, 29-first rotating block, 210-second rotating block, 211-connecting rod, 3-vertical plate, 4-motor, 5-second screw, 6-grinding cylinder, 7-centrifugal cylinder, 8-sealing cover, 9-sealing plug and 10-threaded hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, an embodiment of the present invention provides a technical solution: a high-speed tissue grinder can realize that all rolling bodies in a normal linear bearing 25 are in the same stress state and have no redundant rolling bodies, can better meet the special requirements of the linear bearing in a high-speed mechanism and a heavy-load mechanism, is a technical upgrade of the traditional linear bearing, the normal linear bearing 25 directly resists against unidirectional load, has no redundant rolling bodies, has reduced volume, thereby effectively saving metal resources and reducing cost, and comprises a bottom plate 1, a slider-crank mechanism 2 and a vertical plate 3, wherein the top of the bottom plate 1 is provided with a threaded hole 10, the high-speed tissue grinder can be fixedly connected with a contact surface, the stability of the grinder in work is maintained, the phenomenon of deviation is prevented, meanwhile, a motor 4 can be firmly connected with the vertical plate 3, a supporting force is provided for the motor 4, the bottom of the vertical plate 3 is fixedly connected with the top of the bottom plate 1, one side of the riser 3 is fixedly connected with a motor 4, the motor 4 is a servo motor, which is an engine for controlling the operation of mechanical elements in a servo system, and is a supplementary motor indirect speed change gear, the servo motor can control the speed and position accuracy very accurately, and can convert a voltage signal into torque and rotating speed to drive a control object, the back surface of the crank wheel 23 is fixedly connected with one end of an output shaft of the motor 4 through a coupler, the front surface of the crank wheel 23 is fixedly connected with a first lug 27, the other side of the front surface of the mounting block 21 is fixedly connected with a second lug 28, the surface of the first lug 27 is rotatably connected with a first rotating block 29, the surface of the second lug 28 is rotatably connected with a second rotating block 210, a connecting rod 211 is fixedly connected between the opposite sides of the first rotating block 29 and the second rotating block 210, the crank slider mechanism 2 comprises a mounting block 21 and a crank wheel 23, one side of the front surface of the mounting block 21 is fixedly connected with a guide rod, one end of the guide rod 24 is fixedly connected with a grinding cylinder 6 through a second screw 5, the bottom of the inner wall of the grinding cylinder 6 is fixedly connected with a centrifugal cylinder 7, the screw refers to a screw, the screw is a tool for fastening machine parts of an object step by utilizing the physics and mathematical principles of the inclined circular rotation and the friction of the object, the screw is a general expression of a fastener, a sealing cover 8 is movably connected to the top of the grinding cylinder 6, a sealing plug 9 matched with the centrifugal cylinder 7 is fixedly connected to the bottom of the sealing cover 8, the crushing and mixing of samples can be realized through the back and forth oscillation of tungsten carbide pellets or stainless steel pellets in the centrifugal cylinder 7 in a tube, the arrangement of the sealing cover 8 and the sealing plug 9 can prevent the samples from overflowing, the sealing performance is improved, the first screw 22 and the second screw 5 are both inner hexagonal socket head screws, the types of the first screw 22 and the second screw 5 are both M5X12, the surface of the guide rod 24 is movably connected with a normal linear bearing 25, the interior of the normal linear bearing 25 is movably connected with a normal linear bearing rolling body 26, the surface of the normal linear bearing rolling body 26 is contacted with the surface of the guide rod 24, the linear bearing is a linear motion system and is used for matching a linear stroke with a cylindrical shaft, because a bearing ball is in point contact with a bearing outer sleeve, the steel ball rolls with the minimum friction resistance, so the linear bearing has small friction and is relatively stable and does not change along with the bearing speed, stable linear motion with high sensitivity and high precision can be obtained, the consumption of the linear bearing is limited, the most important is that the impact load capacity of the bearing is poor, the bearing capacity is poor, secondly, the linear bearing has larger vibration and noise during high-speed motion, the linear bearing is fast, easy to optimize, automatic to select types and has recording, and the linear bearing is widely applied to precision machine tools, The sliding parts of industrial machines such as textile machines, food packaging machines, printing machines and the like have small using load because the bearing ball is in point contact with the bearing point, and the steel ball rotates with extremely small friction resistance, thereby obtaining high-precision stable motion.
When the centrifugal machine is used, the sealing cover 8 is opened, a sample is placed in the centrifugal cylinder 7, the sealing cover 8 is closed, the sealing plug 9 seals the centrifugal cylinder 7, the external switch is started, the motor 4 starts to work, the motor 4 drives the crank wheel 23 to rotate, meanwhile, the first protruding block 27 drives the first rotating block 29 to rotate, the first rotating block 29 drives the mounting block 21 to move left and right through the connecting rod 211, the second rotating block 210 and the second protruding block 28, the guide rod 24 moves left and right inside the normal linear bearing 25, the normal linear bearing rolling elements 26 inside the normal linear bearing 25 roll and rub on the surface of the guide rod 24, the sample is crushed and mixed, and then the sealing cover 8 is opened and taken out, so that the whole work is completed.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a high-speed tissue grinder, includes bottom plate (1), slider-crank mechanism (2) and riser (3), the bottom of riser (3) and the top fixed connection of bottom plate (1), one side fixedly connected with motor (4) of riser (3), its characterized in that: the crank block mechanism (2) comprises an installation block (21) and a crank wheel (23), a guide rod (24) is fixedly connected to one side of the front face of the installation block (21) through a first screw (22), a normal linear bearing (25) is movably connected to the surface of the guide rod (24), a normal linear bearing rolling body (26) is movably connected to the inside of the normal linear bearing (25), and the surface of the normal linear bearing rolling body (26) is in contact with the surface of the guide rod (24).
2. The high-speed tissue milling apparatus according to claim 1, wherein: the back of the crank wheel (23) is fixedly connected with one end of an output shaft of the motor (4) through a coupler, and the front of the crank wheel (23) is fixedly connected with a first bump (27).
3. A high speed tissue milling apparatus as defined in claim 2, wherein: the other side of the front surface of the mounting block (21) is fixedly connected with a second lug (28), and the surface of the first lug (27) is rotatably connected with a first rotating block (29).
4. A high speed tissue milling apparatus as defined in claim 3, wherein: the surface of the second bump (28) is rotatably connected with a second rotating block (210), and a connecting rod (211) is fixedly connected between the opposite sides of the first rotating block (29) and the second rotating block (210).
5. The high-speed tissue milling apparatus according to claim 1, wherein: one end of the guide rod (24) is fixedly connected with a grinding cylinder (6) through a second screw (5), and the bottom of the inner wall of the grinding cylinder (6) is fixedly connected with a centrifugal cylinder (7).
6. The high-speed tissue milling apparatus according to claim 5, wherein: the top of the grinding cylinder (6) is movably connected with a sealing cover (8), and the bottom of the sealing cover (8) is fixedly connected with a sealing plug (9) matched with the centrifugal cylinder (7).
7. The high-speed tissue milling apparatus according to claim 5, wherein: the first screw (22) and the second screw (5) are both hexagon socket head cap screws, and the types of the first screw (22) and the second screw (5) are both M5X 12.
8. The high-speed tissue milling apparatus according to claim 1, wherein: the top of the bottom plate (1) is provided with a threaded hole (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911244331.9A CN110841781A (en) | 2019-12-06 | 2019-12-06 | High-speed tissue grinding instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911244331.9A CN110841781A (en) | 2019-12-06 | 2019-12-06 | High-speed tissue grinding instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110841781A true CN110841781A (en) | 2020-02-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911244331.9A Pending CN110841781A (en) | 2019-12-06 | 2019-12-06 | High-speed tissue grinding instrument |
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| Country | Link |
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| CN (1) | CN110841781A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113337381A (en) * | 2021-06-30 | 2021-09-03 | 成都导胜生物技术有限公司 | Automatic grinding device and application thereof in obtaining single cells |
-
2019
- 2019-12-06 CN CN201911244331.9A patent/CN110841781A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113337381A (en) * | 2021-06-30 | 2021-09-03 | 成都导胜生物技术有限公司 | Automatic grinding device and application thereof in obtaining single cells |
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