JPS62277186A - Vibrator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention 3. Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a vibrating machine, and particularly relates to a grinding machine, but is not limited to a grinding machine.

(Prior Art) Generally, machinery is designed to impart a circular motion to the material within the grinding chamber, such that the center of gravity on a particular plane of the machine follows a substantial circular orbit around the stationary center of gravity of the machine. It is composed of The diameter of this circular orbit is known as the amplitude of the vibration. The joint center of gravity of a plurality of weights is held together in a circular motion by the rotation of the weights, which are supported in a cantilevered manner by the crystal 6L of the momo. The amplitude of the resulting circular motion is the speed of rotation (
ω), eccentricity (e) and weight mass (m). Their algebraic product (le·ω2) determines the amplitude of the motion.

SUMMARY OF THE INVENTION These modern configurations place large stresses on the motor and often require the provision of very large and expensive specialized motors. In order to accommodate different grinding ratios, grinding speeds, and various grinding materials, the motor must also be two-speed or variable-speed, further increasing costs.

OBJECTS OF THE INVENTION One of the objects of the invention is to provide an improved vibratory machine which alleviates at least some of the above-mentioned disadvantages.

Means for Solving the Problems Viewed from one aspect, the present invention comprises a vibrating element, a means for mounting the vibrating element for vibratory movement in a plane;
The vibrating machine includes an actuating means for imparting the vibrating motion to the vibrating element, a motor for driving the actuating means, and a flexible driving means drivingly connecting the motor and the actuating means.

In a preferred embodiment of the invention, the vibrating machine has a frame, and the motor is mounted on the frame separated from the mounting means, and the mounting means itself or the vibrating element is resiliently mounted on the frame. There is. The motor is then suitably located below the vibrating element and spaced apart from the actuating means.

The actuating means may have a rotatable shaft which is either an eccentric mass or fixed, the shaft vibrating in such a way that a radial movement of the shaft induced by the eccentric mass is transmitted to the vibrating element. It may be attached to the element. The eccentric mass may have a plurality of relatively movable segments that can be fixed together in a plurality of positions, the relative positions of the segments controlling the radial movement of the shaft at a particular rotational speed of the shaft. The amplitude of is determined.

For example, at least one of the segments may be fixed to the shaft and the other one may be rotatably attached to the shaft. In this case, one of the segments may be provided with a plurality of openings for fixedly receiving pins or the like attached to another segment.

The vibrating element may carry a chamber that can be clamped onto itself by means of a toggle mechanism, the toggle mechanism being configured such that in its clamping position, a lever of the toggle mechanism passes through the center of the toggle.

Viewed from another aspect, the invention includes a vibratory element for performing vibratory motion in a plane, a shaft rotatably mounted on the element, an eccentric mass fixed to the shaft, and means for rotating the shaft. It consists of a vibrating machine arranged such that when the shaft rotates, an eccentric mass induces a radial movement of the shaft and that movement is transmitted to the vibrating element.

The eccentric mass can be made up of multiple segments as described above.

In yet another aspect, the invention includes a vibrating machine having a chamber and a vibrating element, and further comprising a toggle tightening mechanism for tightening the chamber to the vibrating element;
The toggle mechanism is configured such that the actuation lever passes through the center of the toggle when moved to the actuation position.

As described above, the invention further includes novel combinations of the above and below features.

(Examples) Although the present invention can be implemented in many aspects, examples according to the present invention will be described below with reference to the accompanying drawings.

Vibrating machines that are displayed as 10 overall are in box 11
, motor 12. It includes a vibration unit 13 connected to the motor 12 by a flexible drive 14 and a cover 15 allowing access to the vibration unit 13. The vibrating unit 13 has a vibrating circuit plate or vibrating element 16 mounted on the frame 11 by an annular support plate 17 and spaced springs 18 . The plate 16 has a grinding chamber or working chamber 19 on its upper surface by means of a rubber buffer 20! It is location. Plate 16 also has a toggle mechanism 21 that clamps chamber 19 to plate 16 during operation of the machine. The casing 22 or the underside of the plate 16 can be attached directly or the casing 2
A bearing 24, whose outer race is fixed to the plate 16 through 2, surrounds an axle 23 which is rotatably mounted within the casing. Eccentric weight 2
5.26 is attached to the shaft in the manner described in detail below. The shaft is drivably coupled to motor 12 by drive 14 .

In use, the motor 12 rotates the shaft 23 to move about the centerline 27 of the machine due to the eccentric weights 25,26 attached to the shaft. This motion is transmitted to the plate 16 through the bearing 24 and further to the chamber 19. The springs 18 are selected to substantially confine the oscillating motion to the plane of the plate 16, in the event of a movement perpendicular to this plane or a highly damaging grinding operation. It's advantageous.

The motor is thus substantially isolated from induced vibrations and is therefore of fairly standard type so that inexpensive motors can be used. Smaller sized motors can be used because the motor structure itself does not need to support the weight of an eccentric weight. In order to reduce the bending or twisting required of the drive 14, it is desirable that the motor be located as far away from the axis of rotation of the shaft as possible. Also, the motor
It is desirable that it be located below the vibration unit 13. This is because lubricating grease or oil, which was forced upwardly in the shaft by the pump during machine operation, can flow down to the motor and back up between drive cycles.

The toggle mechanism 21 is designed so that its actuating lever 27 passes through the toggle center of the machine when the tightening position (see FIG. 1) is reached. This is done by loosening the lever and
It requires a lot of work to release, thus preventing accidental loosening due to vibration during use.

In FIG. 3, one of the weights 25 is connected to the axis 28 at
3, and the other weight 26 is rotatably mounted on the shaft 23. Fixed weight 25 is provided with a number of circumferentially spaced apertures (shown as one or 29) for helically receiving a bolt 30 therethrough. . In this way, the effective center of gravity of the two weights can be adjusted by changing the degree of overlap of the weights to change the distance from the axis of rotation of the shaft 23. Once its position has been selected according to the opening 29, the weight is fixed in its selected relative position by means of a bolt 30. Thus, when the centers of gravity of the weights overlap, the vibration will be maximum, while when the centers of gravity of the weights are in the position shown in FIG. 3, the amplitude will be low. This makes it possible to vary the amplitude of vibration without using a variable speed motor.

The locking arrangement described above is locked or unlocked by an Allen key passing through the top of the frame 11, but is made easier by using a spring-loaded bolt to press the weight. Can be canceled by taking. Other suitable embodiments are also possible.

Since the rotational force in the configuration of the present invention is transmitted directly to the diaphragm through the bearing rather than through the motor, damage to the motor is significantly reduced. Furthermore, since there is no need to support the diaphragm or the motor, it is possible to reduce its size and thus reduce the vibration force of the required vibrations.

FIG. 4 illustrates a structure which in particular allows easy adjustment of the weight. In the figure, the fixed weight 25 is located at the top, and the lower movable weight 26 is connected by a bolt 31 to a spring-loaded plunger 32, which resists the action of a compression spring 34. The screw head 33 can be pressed and rotated using a screw driver. A groove 35 is formed in the wall of the shaft 23, so that the bolt 31 can make a combined movement. Pressing plunger 32 during movement causes weight 26 to fall, thereby causing pin 30 to fall through opening 29. The weight 26 is rotated by a pin 30 or a plunger 32 that aligns with the desired opening 20. Releasing the plunger 32 causes the spring 34 to push up the molecule F426, thereby causing the pin 3o to engage the weight 25.

FIG. 1 is a plan view of a vibrating machine according to the present invention, FIG. 2 is a partial sectional view taken along the line ■-■ in FIG. 1, and FIG.
FIGS. 1 and 2 are enlarged detailed views of the eccentric weights of the vibrating machine, and FIG. 4 is an enlarged view of the weights illustrating the method of adjusting the vibrating machine according to the present invention.

lO... Vibration machine 11... Frame 12... Motor 13... Vibration unit 14... Drive 15... Cover 16... Vibration plate or vibration element 17... Annular support plate 18... Spring 19... Operating chamber 20... Rubber shock absorber 21... Torque mechanism 22.
...Casing 23 River shaft 24... Bearing 25.26... Eccentric weight 2
7... Machine center line (operating lever) 28... Key stop 29... Opening 30.31... Bolt 3
2...Plunger 33...Screw head 34...Compression spring 35...Groove agent Teruo Taniyama °゛・□°゛(・“-One song・One song Iji6( (No change in content) Figure 2 Procedural Amendment (Method) Showa Mu, 2-3, 1960, Patent Application No. 41, 11 feet address Shigesu Building 3305, 2-6-2 Marunouchi, Chiyoda-ku, Tokyo, Date of the amendment order: Showa C ear year, 2-4. Engraving on the date 8, Contents of the amendment: There is no change in the content as shown in the attached sheet.

Claims (1)

[Scope of Claims] 1. A vibrating element, means for attaching the element to cause an oscillatory movement in a particular plane, an actuating means for imparting the oscillatory movement to the element, a motor for driving the actuating means, and a motor for driving the actuating means. a flexible drive means drivingly coupled to the actuation means. 2. Claim 1 further comprising a frame, the motor being mounted to the frame in isolation from the mounting means, the mounting means resiliently mounting the element to the frame. The vibrating machine described in . 3. the actuating means comprises a rotatable shaft having an eccentric mass fixed on the shaft, and the actuating means comprises a rotatable shaft having an eccentric mass fixed thereon, and the actuating means comprises a rotatable shaft having an eccentric mass fixed thereon, and the actuating means comprises a rotatable shaft having an eccentric mass fixed thereon, and the actuating means comprises a rotatable shaft having an eccentric mass fixed on the shaft, and the actuating means comprises a rotatable shaft having an eccentric mass fixed thereon, and the actuating means comprises a rotatable shaft having an eccentric mass fixed thereon, and the actuating means comprises a rotatable shaft having an eccentric mass fixed on the shaft, and the actuating means is configured such that a radial movement of the shaft induced by the eccentric mass is transmitted to the element. A vibrating machine according to claim 1 or 2, characterized in that the shaft is rotatably attached to the element. 4. The eccentric mass consists of a plurality of relatively movable segments lockable together in a plurality of positions, the relative positions of the segments being dependent on the radial direction of the shaft for a given rotational speed of the shaft. 4. Vibratory machine according to claim 3, characterized in that the amplitude of the movement is determined. 5 at least one said segment is fixed to said shaft;
5. A vibrating machine according to claim 4, characterized in that the other one of the segments is rotatably mounted on the shaft. 6. Claims 4 or 5, characterized in that one of the segments is provided with a plurality of openings for lockingly receiving pins or the like connected to another one of the segments. The vibrating machine described in . 7. A vibrating machine according to any one of claims 1 to 6, characterized in that the motor is placed below the vibrating element and is isolated from the axis of the shaft. 8. A patent claim characterized in that a chamber is tightened by a toggle mechanism on the vibrating element, and the toggle mechanism is formed such that the lever of the toggle mechanism passes through the center of the toggle when the toggle mechanism is in the tightened or locked position. The vibrating machine according to any one of items 1 to 7. 9. Vibrations having a vibratory element, means for attaching the element to a vibratory movement in a particular plane, an axis rotatably attached to the element, an eccentric mass fixed to the axis and means for rotating the axis. A vibrating machine characterized in that the arrangement is such that an eccentric mass induces a radial movement of the shaft when the shaft is rotating, and that movement is transmitted to the vibrating element. 10 The eccentric mass is comprised of a plurality of relatively movable segments that can be locked in a plurality of positions, the relative positions of the segments changing the radial movement of the shaft for a given rotational speed of the shaft. 10. A vibrating machine according to claim 9, characterized in that the amplitude of the vibration is determined. 11 A machine in which the shaft is hollow to receive a movable control element to which one of the segments is connected through the wall of the shaft, the other being hollow in response to axial and rotational movement of the control element. 11. A vibrating machine according to claim 10, characterized in that the segment is arranged to be driven such that it is disengaged from the segment and subsequently relocked in another relative position. 12. A vibrating machine as claimed in claim 11, characterized in that it comprises resilient means for axially deflecting the control element so as to releasably lock the segments together. 13 having a chamber and a vibrating element, further comprising a toggle tightening mechanism for tightening the chamber to said element, said toggle mechanism being assembled such that the actuating lever passes through the center of the toggle when moved to the operating position; A vibrating machine according to any one of claims 9 to 12.