JP4097475B2 - Crusher - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a crushing apparatus suitable for crushing a sample such as a tissue or a cell, and more specifically, a crushed material such as an iron ball and a sample are placed in a tube, the tube is vibrated, and the sample and crushed. The present invention relates to an apparatus for crushing a sample by colliding with an object.
[0002]
[Prior art]
As such a crushing device, there is one disclosed in Japanese Patent Application Laid-Open No. 2001-178444.
[0003]
As shown in FIG. 5, this known crushing device 50 is fixedly supported with an inclined shaft body 52 inclined at the tip of a drive shaft 51 of a motor, and the inclined shaft body 52 is annularly connected via a bearing 53. The body 54 is held, the annular body 54 is brought into a non-rotating state by the magnets 55 a and 55 b, the annular holder 56 is fixed to the periphery of the annular body 54, and the container insertion hole 56 a is formed at the periphery of the annular holder 56 In addition, the crushing container A is suspended from the container insertion hole 56a.
[0004]
In the crushing device 50, a disc-like pressing plate 57 having tongue pieces 57a radially arranged on the circumferential surface is disposed so as to be spaced from the annular holding body 56 and movable within a predetermined range in the circumferential direction. Then, the tongue piece 57 a of the pressing plate 57 is pressed against the cap a of the crushing container A, and the crushing container A is pressed against the annular holding body 56.
[0005]
[Problems to be solved by the invention]
By the way, in the crushing device 50, the pressing plate 57 is attached to the annular holding body 56 with three screws 58.
Therefore, when releasing the press contact of the pressing plate 57, the three screws 58 have to be loosened, and operations such as attachment and removal of the crushing container A are complicated.
[0006]
In the crushing device 50, the annular holding body 56 is fixed to the annular body 54 with four screws 59.
Therefore, when replacing the annular holder 56, the four screws 59 must be removed, and the replacement work of the annular holder 56 is also complicated.
[0007]
Then, the objective of this invention is providing the crushing apparatus with favorable workability | operativity.
[0008]
[Means for Solving the Problems]
In the crushing apparatus according to the first aspect of the present invention, the disc body is fixed to the tip of the drive shaft of the motor, the intermediate portion of the pivot shaft is supported on the case by a universal bearing, and the lower end of the pivot shaft is fixed to the disc body. The container holding plate is supported at a position eccentric with respect to the drive shaft of the motor, and a container holding plate is held at the tip of the swivel shaft, and a container holding hole is formed at the periphery of the container holding plate, A crushing device for holding a crushing container in a holding hole and rotating the container holding plate by rotating a drive shaft of the motor, wherein a male screw is formed at a tip of the swiveling shaft and a flange is formed at a lower portion of the male screw. forming a mounting the container holding plate by Rukoto fitted to said pivot shaft insertion hole center to form a pivot shaft insertion hole of the container holding plate to the tip of the pivot shaft on the flange of the pivot axis is location, is formed on the tip of the pivot axis The container holding plate by screwing the nut to the male screw while the attachment to the pivot axis, enclose them between the swivel supporting the intermediate portion of the flange and the pivot axis formed on the pivot axis As described above, the elastic cover is inserted and installed, and the rotating shaft is held in a non-rotating state with respect to the case by the elastic cover .
[0009]
According to the crushing apparatus of the first aspect of the invention, the container holding plate can be removed from the turning shaft by removing one nut screwed to the tip of the turning shaft. Is extremely easy.
[0011]
Moreover, according to the crushing apparatus of this invention of Claim 1, since the rotation of the turning shaft is prevented by the elastic cover, that is, the rotation of the turning shaft is prevented by the elastic member, the crushing held by the container holder The 8-shaped swivel movement of the container becomes smooth, excellent in durability and stability, and noise can be reduced.
[0012]
In the crushing device of the present invention of claim 2, in the invention of claim 1 , a pin is erected on the upper surface of the container holding plate around the pivot shaft, and a tongue piece is provided on the peripheral surface of the pin. A loosely-formed elastic pressing plate is loosely fitted, a turning shaft insertion hole is formed at the center of the pressing plate, and the turning shaft is inserted into the container holding plate and the turning shaft insertion hole of the pressing plate, The container holding plate and the pressing plate are attached to the turning shaft by screwing the nut onto the tip of the turning shaft.
[0013]
According to the crushing apparatus of the second aspect of the present invention, each of the crushing containers held on the periphery of the container holding plate is pressed with a uniform pressure. In addition, it is possible to take out the crushing container from the container holding plate or attach a new crushing container simply by loosening or tightening one nut screwed to the tip of the swivel shaft, thereby improving workability.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Below, the crushing apparatus concerning the above-mentioned this invention is demonstrated based on embodiment shown in drawing.
[0015]
FIG. 1 is a conceptual cross-sectional view showing a crushing apparatus according to the present invention, FIG. 2 is an exploded perspective view showing a container holding unit as a main part of the crushing apparatus, and FIGS. 3 and 4 are use of the container holding unit. It is sectional drawing which showed the aspect, respectively.
[0016]
In this crushing apparatus, a base 10a is installed in the lower part of the case 10, and a substrate 12 is installed above the base 10a via a damper 13 such as a rubber bush. A motor 11 is attached to the lower portion of the substrate 12, and a cylindrical frame 14 is installed on the upper portion of the substrate 12. A free bearing 15 such as a ball bearing or a self-aligning bearing is disposed on the ceiling portion 14 a of the cylindrical frame 14, and a swivel shaft 16 is provided through the free bearing 15.
[0017]
On the other hand, the drive shaft 11 a of the motor 11 extends to the upper side of the substrate 12. A plate body 17 is installed at the tip of the drive shaft 11 a, and the plate body 17 is connected to the drive shaft 11 a of the motor 11. A universal bearing 18 such as a ball bearing or a self-aligning bearing is disposed at an eccentric position. The lower end of the pivot shaft 16 is disposed on the universal bearing 18 of the disc body 17.
[0018]
Further, as shown in FIG. 2, a male screw 16a is formed at the tip of the pivot shaft 16, and a flange 16b is formed at the lower part of the male screw 16a. An elastic cover 19 such as rubber is installed between the flange 16b and the universal bearing 15 so as to surround them.
[0019]
A container holding unit 20 is installed on the male screw 16 a formed at the tip of the pivot shaft 16.
The container holding unit 20 includes a container holding plate 21 for hanging and holding the crushing container A, a pressing plate 22 installed in parallel with the container holding plate 21, a connecting means 23 for connecting the container holding plate 21 and the pressing plate 22, and the like. It is composed of
[0020]
The container holding plate 21 has a disk shape as shown in FIG. 2 and has holes 24 at equal intervals on the periphery. A plurality of pins 25 are erected concentrically on the upper surface of the container holding plate 21, female threads 25 a are formed on the front end surfaces of the pins 25, and springs 25 b are attached to the outer periphery thereof. Further, a boss 26 that protrudes upward is provided at the center of the container holding plate 21, and a hole 27 that fits the turning shaft 16 is provided through the center of the boss 26.
[0021]
The pressing plate 22 is made of an elastic material such as spring steel. Further, radial tongue pieces 28 are formed at equal intervals on the peripheral surface of the pressing plate 22. A pin 29 having a hemispherical lower portion is erected on the lower surface of the tip of the tongue piece 28. In addition, a plurality of arc-shaped long holes 30 extending in the circumferential direction are formed at equal intervals in the pressing plate 22, and a hole 31 that fits the turning shaft 16 is provided at the center.
[0022]
Further, the connecting means 23 is composed of an annular washer plate 32 and a screw 33, and the washer plate 32 is formed with a plurality of holes 32a.
[0023]
In the container holding unit 20, the hole 27 of the container holding plate 21 is fitted to the tip of the pivot shaft 16, the long hole 30 of the pressing plate 22 is fitted to the pin 25 of the container holding plate 21, and the washer is further washed. The screw 33 inserted through the hole 32a of the plate 32 is assembled by screwing it into the female screw 25a of the pin 25 of the container holding plate 21.
[0024]
In the container holding unit 20 assembled in this way, the pressing plate 22 is constrained between the container holding plate 21 and the washer plate 32, and the circumferential movement of the pressing plate 22 is caused by the pin 25 in the long hole 30. Constrained within the length range.
[0025]
The container holding unit 20 is configured to fit the hole 27 of the container holding plate 21 and the hole 31 of the pressing plate 22 to the tip of the turning shaft 16 and screw the knob nut 34 into the male screw 16 a of the turning shaft 16. Is attached to the pivot shaft 16. The knob nut 34 has a knurl 34a formed on the peripheral surface thereof.
[0026]
In this crushing device, the knob nut 34 is loosened, the pressing plate 22 is pushed upward by the spring 25b attached around the pin 25, and the tongue piece 28 of the pressing plate 22 is viewed from above in the hole of the container holding plate 21. The crushing container A can be easily inserted into the hole 24 of the container holding plate 21 in this state.
[0027]
Next, the pressing plate 22 is rotated to position the tongue piece 28 on the container A, and the knob nut 34 is tightened in this state. Then, the pressing plate 22 is pressed against the urging force of the spring 25b, the pin 29 of the tongue piece 28 comes into contact with the cap a of the crushing container A, and when the pressing plate 22 is further pressed, the elasticity of the pressing plate 22 The cap a of the crushing container A is pressed, and the crushing container A is firmly held by the container holding plate 21.
[0028]
When the drive shaft 11a of the motor 11 is rotated in this state, the disc body 17 is rotated around the drive shaft 11a, and the lower end of the swivel shaft 16 moves circularly accordingly. Therefore, the tip of the pivot shaft 16 moves circularly around the universal bearing 15, and the container holding plate 21 moves accordingly.
[0029]
In the case of this crushing device, since the turning shaft 16 is engaged with the case 10 by the elastic cover 19 via the universal bearing 15, the turning shaft 16 does not rotate. Therefore, the container holding plate 21 does not rotate, and the crushing container A is repeatedly moved up and down (pitching) and swinging (rolling) at that position.
[0030]
When the crushing operation is completed, the knob nut 34 is loosened, the pressing plate 22 is pushed upward by the spring 25b attached around the pin 25, the pressing plate 22 is rotated a little to shift the tongue piece 28 from the crushing container A, In this state, the crushing container A can be easily taken out from the hole 24 of the container holding plate 21.
[0031]
Further, in this crushing apparatus, when the container holding unit 20 is replaced, the container holding unit 20 can be easily taken out from the turning shaft 16 simply by removing the knob nut 34 from the turning shaft 16.
[0032]
【The invention's effect】
As described above, according to the crushing device of the present invention, the container holding plate can be removed from the turning shaft by removing one nut screwed to the tip of the turning shaft, and the container holding plate can be replaced. Is extremely easy.
[0033]
Further, according to the crushing apparatus of the present invention, since the rotation of the swivel shaft is prevented by the elastic cover, that is, the rotation of the swivel shaft is prevented by the elastic member, 8 of the crushing container held by the container holding body. The U-shaped turning motion is smooth, excellent in durability and stability, and noise can be reduced.
[0034]
Furthermore, according to the crushing apparatus of the present invention, each of the crushing containers held on the periphery of the container holding plate is pressed with a uniform pressure. In addition, it is possible to take out the crushing container from the container holding plate or attach a new crushing container simply by loosening or tightening one nut screwed to the tip of the swivel shaft, thereby improving workability.
[Brief description of the drawings]
FIG. 1 is a conceptual cross-sectional view showing a crushing apparatus according to the present invention.
FIG. 2 is an exploded perspective view showing a container holding unit which is a main part of the crushing apparatus according to the present invention.
FIG. 3 is a cross-sectional view showing a state in which a crushing container is attached to a container holding unit, and showing a state before the crushing container is pressure-bonded.
FIG. 4 is a cross-sectional view showing a state in which a crushing container is mounted on a container holding unit, and showing a state in which the crushing container is crimped.
FIG. 5 is a cross-sectional view showing a conventional crushing device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Case 10a Base 11 Motor 11a Drive shaft 12 Substrate 13 Damper 14 Cylindrical frame 15 Universal bearing 16 Rotating shaft 16a Male screw 16b Flange 17 Plate body 18 Universal bearing 19 Elastic cover 20 Container holding unit 21 Container holding plate 22 Pressing plate 23 Connection Means 24 Hole 25 Pin 25a Male screw 25b Spring 26 Boss 27 Hole 28 Tongue piece 29 Pin 30 Arc-like long hole 31 Hole 32 Washer plate 33 Screw 34 Knob nut 34a Knurl A Crushing container a Cap

Claims (2)

A panel is fixed to the tip of the motor drive shaft, the middle part of the pivot shaft is supported on the case by a free bearing, and the lower end of the pivot shaft is eccentric with respect to the motor drive shaft of the panel body. The container holding plate is held at the tip of the swivel shaft, a container holding hole is formed at the periphery of the container holding plate, and the crushing container is suspended and held in the container holding hole, A crushing device for rotating the container holding plate by rotating a drive shaft of a motor, wherein a male screw is formed at a tip of the rotating shaft and a flange is formed at a lower portion of the male screw, and the container holding plate is formed at the center of the container holding plate. forming a pivot shaft insertion hole of the container holding plate is placed on the flange of the pivot shaft by Rukoto the said pivot shaft insertion hole is fitted to the tip of the pivot shaft, it is formed at the tip of the pivot axis screwing the nut on the external thread Thus the container holding plate as well as to attach to the pivot axis, passing insert the elastic cover so as to surround them between the swivel supporting the intermediate portion of the flange and the pivot shaft formed in the pivot shaft installed The crushing apparatus is characterized in that the rotating shaft is held in a non-rotating state with respect to the case by the elastic cover . A pin is erected on the upper surface of the container holding plate around the swivel shaft, and an elastic pressing plate having tongue pieces radially formed on the peripheral surface is loosely fitted to the pin, and at the center of the pressing plate. Forming the pivot shaft insertion hole, inserting the pivot shaft into the pivot shaft insertion hole of the container holding plate and the pressing plate, and screwing the nut to the tip of the pivot shaft; The crushing apparatus according to claim 1, wherein a pressing plate is attached to the pivot shaft .

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