JPH11199026A - Vibrating equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide vibrating equipment that can easily adjust the spring constant of a leaf spring. SOLUTION: A fitting side leaf spring keep 4 is interposed between a fitting block 2 and one end part of a leaf spring 1 to be fitted to vibrating equipment, and a bolt head side leaf spring keep 5 is placed on top of the leaf spring 1 to fix the leaf spring 1 to the fitting block 2 by a bolt 6 inserted through the bolt head side leaf spring keep 5, leaf spring 1 and fitting side lead spring keep 4. The bolt head side leaf spring keep 5 and the fitting side leaf spring keep 4 are of the same cross shape and respectively have legs different in length in four directions. The lead spring 1 is fixed to a fitting block 3 in the same way at the other end part. In the fitting blocks 2, 3, the end parts of the leaf spring 1 are held by the legs of the same length such as the legs 44 and legs 54 to change effective length.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vibration device, and more particularly to a vibration device capable of easily adjusting a spring constant of a leaf spring used.

[0002]

2. Description of the Related Art Leaf springs are frequently used in devices for transferring and sieving articles using vibration, such as vibration feeders, vibration conveyors, and vibration screens. In these, the leaf spring has an operating frequency N and a resonance frequency N ₀ of N / N.
It is often used in a resonance system in the range of ₀ = 0.8 to 0.95. This is because, within this range, the driving force of the externally applied vibration only needs to compensate for the amount of attenuation, so that there is an advantage that only a small driving force is required. In other cases, the article may be transferred by forcibly vibrating with N と し N ₀ .

[0003] When goods are transferred by a vibration device,
The operation frequency most suitable for the transfer of the article is set.
The natural frequency f ₀ of the vibration device varies depending on the installation method, but in general, a transfer unit, for example, a bowl of a vibration feeder,
It is a function of the equivalent inertial mass M of the trough and the spring constant of the leaf spring used, and is given by (Equation 1).

F ₀ = 1 / 2π · K ^1/2 / M (Equation 1)

Therefore, in order to adjust the natural frequency f ₀ of the vibrating device depending on the article to be transferred, the leaf spring is replaced to change the value of the spring constant K, but the replacement of the leaf spring requires specialized knowledge. Therefore, there is a need for a method that can easily adjust the spring constant K because it is a complicated operation requiring labor.

[0006] As an example, a "piezo-electrically driven vibrating component conveying apparatus" disclosed in Japanese Utility Model Laid-Open No. 5-24613 is disclosed in FIG.
A vibration article conveying apparatus having a method for adjusting a spring constant as shown in FIG. In other words, a circular lower vibrating body 101 and a disk-shaped upper driving body 102 disposed above the lower vibrating body 101 are provided.
0 is fixed. Lower driver 101 and upper driver 102
Four vibration systems are installed at regular intervals between the vibration systems. Each vibration system includes a plate spring 103 having high rigidity for piezoelectric driving, piezoelectric elements 104 and 105 fixed to both surfaces of the spring, and vibration amplification transmission. 106. Vibration amplification transmission 106
The vibration of the leaf spring 103 is amplified and transmitted to the upper driving body 102, and a pair of upper and lower rectangular torsion bars 10 are used.
7 and 108 and a connecting arm 109 for connecting the torsion bars 107 and 108. Torsion bar 107,
The connecting arm 109 is connected to the shaft 108 so as to be movable in the axial direction. By moving the connecting position, the effective spring constant of the torsion bars 107 and 108 is variably adjusted, and the entire operating frequency is set to an optimum value corresponding to the load of the bowl 110 or the like. Is variably adjusted.

[0007]

SUMMARY OF THE INVENTION The above-mentioned Japanese Utility Model Application Laid-open No. Heisei 5-24.
No. 613 discloses a method of adjusting the effective spring constant in which the torsion bar 10 is provided in addition to the leaf spring 103 which is the original vibration system and the piezoelectric elements 104 and 105 fixed on both surfaces thereof.
7, 108 and its connecting arm 109 are required, and the configuration including the attachment thereof is complicated.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems. In a vibration device in which a movable body and a fixed body are connected by a leaf spring and the movable body is vibrated by a vibrator, a vibration in which a spring constant can be easily adjusted is provided. An object is to provide a device.

[0009]

SUMMARY OF THE INVENTION The above object is achieved by the features of claim 1 or claim 2. The solution of claim 1 is to provide an attachment part and / or a fixed body between a movable body and a leaf spring. The end of the leaf spring is sandwiched between a mounting-side leaf spring retainer interposed between the movable body and the fixed body and a bolt head-side leaf spring retainer superimposed on the leaf spring. The side leaf spring retainer, the leaf spring, and the mounting side leaf spring retainer are attached by insertion bolts that are screwed into the movable body or the fixed body. The bolt head-side leaf spring retainer and the mounting-side leaf spring retainer extend linearly in two or more directions around the position of the insertion bolt, and are formed of a plurality of rectangular plate-like feet having a width equal to or greater than the leaf spring and different lengths. And the bolt head side leaf spring retainer and the mounting side leaf spring retainer sandwich the end of the leaf spring with legs of the same length. Therefore, by loosening the insertion bolt, integrally rotating the bolt head-side leaf spring retainer and the mounting-side leaf spring retainer, and changing the foot holding the end of the leaf spring to another foot having a different length, The spring constant of the leaf spring can be adjusted by changing the effective length of the leaf spring between the movable body and the fixed body. That is, the spring constant can be adjusted by the rotation method.

According to a second aspect of the present invention, in the attaching portion between the movable body and the leaf spring and / or the attaching portion between the fixed body and the leaf spring, the end of the leaf spring is connected to the movable body or the fixed body. It is sandwiched between a mounting-side leaf spring retainer interposed between the bolt-side leaf spring retainer and the bolt head-side leaf spring retainer that overlaps the leaf spring. It is attached with an insertion bolt to be worn. The bolt head side leaf spring retainer and the mounting side leaf spring retainer have a width equal to or greater than that of the leaf spring, and have a rectangular plate shape that is long in the length direction of the leaf spring and have an elongated hole in the length direction through which the insertion port is inserted. And the bolt head side leaf spring retainer and the mounting side leaf spring retainer hold the end of the leaf spring without deviation. Therefore, by loosening the insertion bolt, the bolt head-side leaf spring retainer and the mounting-side leaf spring retainer are slid integrally in the length direction within the range of the elongated hole, and the bolt head-side leaf spring retainer and the movable body and / or the fixed body are slid. By changing the relative position of the mounting-side leaf spring retainer, the effective length of the leaf spring between the movable body and the fixed body can be changed to adjust the spring constant of the leaf spring. That is, the spring constant can be adjusted by the slide method.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS As is well known, the spring constant K of a leaf spring is given by (Equation 2).

K = nEbh ³ / l ³ (Equation 2)

Here, E is the elastic modulus, b is the width of the leaf spring, h is the thickness, l is the effective length, and n is the number of leaf springs. By changing these factors, the spring constant K can be changed. Above all, it is possible to change the substantial effective length of the leaf spring without exchanging the leaf spring, In particular, this method is easy to adopt for adjusting the spring constant K of a leaf spring used in a resonance type vibration device.

As a result of various studies on a method of easily and surely changing the effective length of the leaf spring, the present inventors have found that a mounting-side leaf spring retainer interposed between the mounting block and the leaf spring, The leaf spring is attached so as to sandwich the end of the leaf spring by the bolt head side leaf spring retainer that is superimposed on the bolt, and the effective length of the leaf spring is changed according to the sandwiching length.

FIG. 1 is a view showing a leaf spring on which a bolt head side leaf spring retainer and a mounting side leaf spring retainer capable of adjusting a spring constant by a rotation method are mounted, and FIG. B is a plan view. In a configuration in which the mounting block 2 (for example, the movable side) and the mounting block 3 (for example, the fixed side) are connected at both ends of the leaf spring 1,
On the one mounting block 2 side, a thick and rigid mounting side leaf spring retainer 4 having a cross shape having the same width as the leaf spring 1 and different lengths of legs extending in four directions from the center.
A thick and rigid bolt head side leaf spring retainer 5 is used, and the leaf spring 1 has a center portion of the cross of the bolt head side leaf spring retainer 5, a hole at an end of the leaf spring 1, and a center of the cross of the mounting side leaf spring retainer 4. The plate spring 1 is attached to the mounting block 2 by a bolt 6 and a washer 6w which are inserted through the portion and screwed to the mounting block 2. On the other mounting block 3 side, the leaf spring 1 has the same mounting side leaf spring retainer 4 and The bolt 6 and the washer 6w are similarly attached using the bolt head side leaf spring retainer 5. That is, the mounting-side leaf spring retainer 4 and the bolt head-side leaf spring retainer 5 are formed in the same shape, and four legs having different lengths,
For example the bolt head plate spring pressing 5 feet 5 _1, 5 _2, 5
_3, 5 and a _4. Then, the same length of the foot, for example, setting the effective length l of the leaf spring 1 across the end of the leaf spring 1 by the foot 5 ₄ and feet 4 ₄ the leaf spring retainer 4 attached with bolt head leaf spring retainer 5 It is supposed to. Also,
FIG. 1C is a cutaway side view when the leaf spring is a laminated leaf spring 1A, and each of the element leaf springs 1 constituting the laminated leaf spring 1A.
A spacer 9 having the same shape as the mounting-side leaf spring retainer 4 (or the bolt head-side leaf spring retainer 5) is inserted between a.

As shown in FIGS. 2A, 2B, and 2C, when the leaf spring 1 is mounted, the mounting-side leaf spring retainer 4, the bolt head-side leaf spring retainer 5, and the mounting block 5 of the mounting block 2 are attached. The mounting-side leaf spring retainer 4 and the bolt head-side leaf spring retainer 3 in 3 are attached with their feet facing each other. Feet 5 ₁ , 5 of bolt head side leaf spring retainer 5 on mounting block 2 side
_2, 5 _3, for the 5 _4, mounting foot of the bolt head side plate spring pressing the block 3 side 5 _1, 5 _2, 5 _3, 5 ₄ either can be combined with an effective length of the leaf spring 1 1
It can be changed to 0 ways. Of course, in only one of the mounting block 2 and the mounting block 3,
It may be attached to the mounting side leaf spring retainer 4 and the bolt head side leaf spring retainer 5 of the rotation type. These are exactly the same in the case of the leaf spring 1A.

FIG. 3 is a view showing a leaf spring to which a bolt head side leaf spring retainer and a mounting side leaf spring retainer capable of adjusting a spring constant by a sliding method are mounted, and FIG. B is a plan view. In a configuration in which the mounting block 12 and the mounting block 13 are connected at both ends of the leaf spring 11, one of the mounting blocks 12
On the side, the end of the leaf spring 11 has a rectangular, thick, rigid mounting-side leaf spring retainer 14 having the same width as the leaf spring 11 and an elongated hole 14h formed in the length direction, and an elongated hole 15h. Thick and rigid bolt head side leaf spring retainer of the same shape 1
5 and the bolt head side leaf spring retainer 15
h, hole at end of leaf spring 11, leaf spring retainer 14 on mounting side
Is attached by a bolt 16 and a washer 16w which are inserted through the long hole 14h and screwed to the mounting block 12, and on the other mounting block 13 side,
An end of the leaf spring 11 is attached to a similar mounting side leaf spring retainer 14.
And bolt 1 using bolt head side leaf spring retainer 15.
6 and the washer 16w are similarly attached to set the substantial effective length 1 of the leaf spring 11. FIG. 3C is a cutaway side view when the leaf spring is a laminated leaf spring 11A, and a mounting side leaf spring retainer 14 (or a bolt head) is provided between each of the element leaf springs 11a constituting the laminated leaf spring 11A. A spacer 19 having the same shape as the side leaf spring retainer 15) and having an elongated hole 19h is inserted.

As shown in FIGS. 4A and 4B, when the leaf spring 11 is mounted, the bolt head side leaf spring retainers 1 in the mounting blocks 12 and 13 are mounted.
5, the effective effective length 1 of the leaf spring 11 is set by the positions of the long holes 14h and 15h of the bolt 16 for attaching the leaf spring 11 and the mounting side leaf spring retainer 14,
The effective effective length 1 of the leaf spring 11 is continuously changed by integrally sliding the bolt head side leaf spring retainer 15 and the mounting side leaf spring retainer 14 within the range of h and 15h. Of course, the slide-type mounting-side leaf spring retainer 14 and the bolt head-side leaf spring retainer 15 may be mounted on only one of the mounting block 12 and the mounting block 13. These are exactly the same in the case of the leaf spring 11A.

An example of a leaf spring according to an embodiment of the present invention will be specifically described below with reference to the drawings.

[0020]

(Embodiment 1) FIG. 5 is a partially broken side view of an elliptical vibration feeder 20 of a resonance system, FIG. 6 is a sectional view taken along the line [6]-[6] in FIG. 5, and FIG. FIG.
FIG. 5 corresponds to a sectional view taken along the line [5]-[5] in FIG. 6, and shows a partial section of the leg 37.

Referring to FIGS. 5 to 7, bowl 21 for storing and transferring articles is fixed to a cross-shaped upper movable frame 27, and upper fixed frame 27 is provided with four vertical sets for horizontal vibration. The leaf spring 29 is connected to the cross-shaped lower movable frame 28 by a leaf spring 29 (similar configuration to the laminated leaf spring 1A shown in FIG. 1C). That is, the upper ends of the vertical leaf springs 29 are attached to the four ends 27a of the upper movable frame 27 with the bolts 6, and the lower ends of the vertical leaf springs 29 are attached to the ends 28a of the lower movable frame 28 with the bolts 6. Have been. The end 27a and the end 28a are vertically aligned. Each of the four sets of vertical leaf springs 29 includes an attachment-side leaf spring retainer 4 and a bolt head-side leaf spring retainer 5 that enable adjustment of the spring constant by the rotation method shown in FIGS. ing.

At the center of the fixed frame 30, a coil 32 is provided.
The first electromagnet 31 for vertical vibration, on which is wound, is fixed and faces the vertical movable core 33 attached to the lower surface of the central portion of the upper movable frame 27. Also,
A first electromagnet 31 is provided on the opposite side wall of the fixed frame 30.
The second electromagnets 34 for horizontal vibration are fixed at symmetrical positions with respect to. A horizontally movable core 36 is attached to the lower surface of the upper movable frame 27 so as to face the second electromagnet 34.

The fixed frame 30 is integrally formed with
Four leg portions 37 are formed, and these leg portions 37 are supported by a base via rubber cushions 38. A spring mounting portion 37a is formed on the leg portion 37. The spring mounting portion 37a has a horizontal leaf spring 39 (similar to the leaf spring 1 shown in FIG. Configuration) is attached with bolts 6 at the four corners,
The center of 9 is attached to the lower movable frame 28 with bolts. Note that two horizontal leaf springs 39 are stacked via a spacer 39S. And the vertical leaf spring 2
9 and the horizontal leaf spring 39, the attachment-side leaf spring retainer 4, the bolt head-side leaf spring retainer 5, and the leaf spring attachment-side leaf spring retainer 7 shown in FIGS. 1A and 1C are used for the bolt 6 and the washer 6w.

In the above configuration, the first electromagnet 31 is one vibration driver for generating a vertical excitation force,
The vibration system driven thereby is the bowl 21, the horizontal leaf spring 39, and the vertically movable core 33. The pair of second electromagnets 34 is the other vibration driver that generates a horizontal exciting force, and the vibration system driven by the second electromagnet 34 is the bowl 21, the vertical leaf spring 29, and the horizontal movable core 36. These are driven to give the bowl 21 an elliptical vibration.

FIG. 8 is a partially cutaway side view of a torsional vibration parts feeder 40 of a resonance system,
And a drive unit 51 for applying a torsional vibration to this. The bowl 41 is fixed to a movable block 52 of the drive unit 51. The movable block 52 is arranged at an equal angular interval and is inclined so as to have an overlapped leaf spring 53 (the same configuration as the overlapped leaf spring 11A shown in FIG. 3C). ) By the lower fixed block 5
4. The coil 5 is provided on the fixed block 54.
An electromagnet 56 around which the coil 5 is wound is fixed to face a movable core 52C attached to the lower surface of the movable block 52. The periphery of the drive unit 51 is covered with a soundproof cover 57, and is installed on the floor via a vibration-proof rubber 58.

At the upper and lower ends of the above-mentioned leaf spring 53, the mounting-side leaf spring retainer 14, the bolt head-side leaf spring retainer 15, and the spacer 19, which enable the spring constant to be adjusted by the slide method shown in FIG. Are attached to the leaf spring 53 by bolts 16 and washers 16w. Then, torsional vibration is given to the bowl 41 by supplying an alternating current to the coil 55.

(Embodiment 3) FIG. 9 is a side view of a linear vibration feeder 60 of a resonance system, comprising a trough 61 for transferring articles in the direction of an arrow, and a drive unit 71 for applying linear vibration to the trough 61. . The trough 61 is fixed integrally with the driving unit 71 and the movable block 72. The movable block 72 is a pair of inclined front and rear leaf springs 73 (similar configuration to the leaf spring 11A shown in FIG. 3C). And is connected to the lower fixed block 74 by the An electromagnet 76 on which a coil 75 is wound is fixed on the fixed block 74 so as to face a movable core 72C that is suspended from a movable block 72. The fixed block 74 is installed on the floor via an anti-vibration rubber 78.

At the upper and lower ends of the above-mentioned leaf spring 73, the mounting leaf spring retainer 14, the bolt head leaf spring retainer 15, and the spacer 19 shown in FIG. 3 are used for the leaf spring 73 by bolts 16 and washers 16w. Have been.
Then, when an alternating current is applied to the coil 75, the trough 71 is given a linear vibration in the direction indicated by the arrow m.

The vibration device according to the embodiment of the present invention is configured and operates as described above. The present invention is not limited to these, and various modifications can be made based on the technical spirit of the present invention.

For example, in the present embodiment, an elliptical vibration feeder using a cross-shaped one for the rotation type bolt head side leaf spring retainer and the mounting side leaf spring retainer has been described as an example. The existing feet may have different lengths, or may have a shape in which feet having different lengths extend from the center in six or eight directions.
Furthermore, as long as secure fixing is possible, the shape may be such that legs having different lengths extend from the central portion in three directions.

In this embodiment, one or two leaf springs have been described. However, three or more leaf springs having a small thickness and a large number of leaf springs against fatigue failure may be used. The same applies. In this case, a spacer having the same shape as that of the bolt head-side leaf spring retainer or the mounting-side leaf spring retainer is inserted between the element leaf springs constituting the laminated leaf spring.

Further, in this embodiment, the linear vibration feeder in which the slide type bolt head side leaf spring retainer and the mounting side leaf spring retainer are provided at both ends of the leaf spring is illustrated, but it may be provided on only one side of the leaf spring. The spring constant can be continuously and continuously adjusted within the range of the elongated holes. In other words, the desired purpose can be sufficiently achieved by using only one side, even if adjustment in a large range is not required. Of course,
The rotary type bolt head side leaf spring retainer and the mounting side leaf spring retainer may be provided only on one side of the leaf spring if the adjustment range of the spring constant is limited in advance.

Further, in this embodiment, the vibration device in which both ends of the leaf spring are mounted on the movable block or the fixed block is shown, but the vibration device is mounted in such a manner that the central portion of the leaf spring is a vibration node. Equipment also exists. The bolt head-side leaf spring retainer and the mounting-side leaf spring retainer described above can also be used in a central portion that serves as a node of such a leaf spring.

In this embodiment, the vibration feeder using the leaf spring of the present invention has been described in the embodiment, but the leaf spring of the present invention is also preferably applied to a vibrating conveyor, a vibrating screen and the like.

In this embodiment, the exciting force is generated electromagnetically by the combination of the electromagnet provided on the fixed block and the movable core provided on the movable block.
The vibration mechanism may be based on other methods,
For example, by combining a motor and a crankshaft,
This includes mechanical reciprocation.

[0036]

The present invention is embodied in the form described above, and has the following effects.

The spring constant is gradually increased by loosening the mounting bolt of the leaf spring and rotating the bolt head side leaf spring retainer and the mounting side leaf spring retainer stepwise, or fixing the bolt head side leaf spring retainer and the mounting side leaf spring retainer. The spring constant can be continuously changed by sliding the position along the elongated hole, and the desired value can be adjusted by a simple operation.

[Brief description of the drawings]

FIG. 1 is a view showing a leaf spring to which a bolt head-side leaf spring retainer and a mounting-side leaf spring retainer of a rotation type are attached;
Is a cutaway side view, B is a plan view, and C is a cutaway side view in the case of a leaf spring.

FIG. 2 is a view showing the action of a bolt head-side leaf spring retainer and a mounting-side leaf spring retainer in a rotating manner, wherein A, B, and C show changes in the effective length of the leaf spring when the direction is changed by rotating them. Is shown.

FIGS. 3A and 3B are views showing a leaf spring to which a bolt head-side leaf spring retainer and a mounting-side leaf spring retainer of a slide type are attached, wherein A is a broken side view, B is a front view, and C is a broken side face in the case of a laminated leaf spring. FIG.

FIG. 4 is a view showing the action of a slide-type bolt head-side leaf spring retainer and a mounting-side leaf spring retainer, wherein A and B show changes in the free length of the leaf spring when they are slid.

FIG. 5 is a partially broken side view of the elliptical vibration feeder.

6 is a sectional view taken along line [6]-[6] in FIG.

FIG. 7 is a bottom view of the elliptical vibration feeder.

FIG. 8 is a partially broken side view of the torsional vibration feeder.

FIG. 9 is a side view of the linear vibration feeder.

FIG. 10 is a partially cutaway sectional view of a conventional article conveying device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Leaf spring 2 Movable block 3 Fixed block 4 Mounting side leaf spring retainer 5 Bolt head side leaf spring retainer 6 Insert bolt 9 Spacer 11 Leaf spring 12 Movable block 13 Fixed block 14 Mounting side leaf spring retainer 15 Bolt head side leaf spring retainer 16 Insert bolt 19 Room

Claims (9)

[Claims] 1. A vibrating device in which a movable body and a fixed body are connected by a leaf spring, and the movable body is vibrated by a vibrator, and wherein an attachment portion between the movable body and the leaf spring and / or In an attachment portion between the fixed body and the leaf spring, an end of the leaf spring is provided with an attachment-side leaf spring retainer interposed between the movable body or the fixed body, and a bolt head-side leaf spring retainer that overlaps the leaf spring. The bolt head side leaf spring retainer, the leaf spring, and the mounting side leaf spring retainer are inserted through and attached with an insertion bolt screwed to the movable body or the fixed body. The mounting-side leaf spring retainer extends linearly in two or more directions around the position of the insertion bolt, and has a plurality of rectangles having widths equal to or greater than the leaf spring and different lengths. The bolt head side leaf spring retainer and the mounting side leaf spring retainer have the same shape having a plate-like foot, and the leg of the same length sandwiches the end of the leaf spring. By integrally rotating the bolt head-side leaf spring retainer and the mounting-side leaf spring retainer to change the length of the foot that clamps the end of the leaf spring, the distance between the movable body and the fixed body is reduced. A vibrating device wherein the effective constant length of the leaf spring is changed to adjust the spring constant of the leaf spring. 2. The bolt head side leaf spring retainer and the mounting side leaf spring retainer are formed in the same cross shape having four legs having different lengths, and the bolt head side leaf spring retainer and the mounting side leaf spring retainer are formed. The vibrating device according to claim 1, wherein the end of the leaf spring is held between the legs having the same length. 3. The leaf spring is a laminated leaf spring, and a spacer having the same shape as the bolt head-side leaf spring retainer or the mounting-side leaf spring retainer is provided between each element leaf spring constituting the laminated leaf spring. The vibration device according to claim 1, wherein 4. The vibration device according to claim 1, wherein said leaf spring is a leaf spring used for resonance type vibration. 5. The vibrating device is a vibrating feeder such as an elliptical vibrating feeder, a torsional vibrating feeder, a linear vibrating feeder, a vibrating conveyor, or a vibrating screen.
The vibration device according to any one of claims 1 to 4. 6. A vibration device in which a movable body and a fixed body are connected by a leaf spring, and the movable body is vibrated by a vibrator, and wherein an attachment portion between the movable body and the leaf spring and / or In a mounting portion between the fixed body and the leaf spring, an end of the leaf spring is disposed between the movable body or the fixed body and a mounting-side leaf spring retainer, and a bolt head-side leaf spring retainer overlapped with the leaf spring. And the bolt head side leaf spring retainer, the leaf spring, and the mounting side leaf spring retainer are inserted and attached with insertion bolts screwed into the movable body or the fixed body. The mounting-side leaf spring retainer has a width equal to or greater than that of the leaf spring, and has a rectangular plate shape that is long in the length direction of the leaf spring. The bolt spring has the same shape with an elongated hole, and holds the end of the leaf spring without the bolt head-side leaf spring retainer and the mounting-side leaf spring retainer being displaced. The side leaf spring retainer and the mounting side leaf spring retainer are integrally slid in the length direction within the range of the elongated hole, so that the bolt head side leaf spring retainer and the mounting side leaf spring retainer with respect to the movable body and / or the fixed body. By changing the relative position of the leaf spring, the effective effective length of the leaf spring between the movable body and the fixed body can be changed to adjust the spring constant of the leaf spring. Vibration equipment. 7. The leaf spring is a laminated leaf spring, and a spacer having the same shape as the bolt head-side leaf spring retainer or the mounting-side leaf spring retainer is provided between each of the element leaf springs constituting the laminated leaf spring. The vibration device according to claim 6, wherein the vibration device is provided. 8. The vibration device according to claim 6, wherein the leaf spring is a leaf spring used for resonance type vibration. 9. The vibration device according to claim 6, wherein the vibration device is a vibration feeder such as an elliptical vibration feeder, a torsional vibration feeder, a linear vibration feeder, a vibration conveyor, and a vibration screen.