JPH0562840U - Vibration tester - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention relates to a vibration tester, and more particularly to improvement of a fixing portion of a vibration generator to a trunnion stand. [Structure] Ear shafts 14 are projectingly provided on both sides of a support frame member 11 having a circular hole portion 11a capable of detachably supporting a vibration generator 1 having a sample table on the upper portion thereof, and the ear shafts 14 are tightened with bolts 15 for tightening. By supporting the bearing of the trunnion stand 12 provided with the above, a vibration test in which one vibration generator is directly mounted on the table and a vibration test under a required posture on the trunnion stand are provided. It is characterized in that it can be selectively used in vibration tests.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a vibration tester, and more particularly, to improvement of a fixing portion of a vibration generator for a trunnion stand.

[0002]

[Prior Art]

 Generally, in a vibration test using a vibration tester, it is necessary to vibrate not only in the vertical and horizontal directions but also in an arbitrary angular direction.

As shown in FIG. 3 (a), the conventional vibration tester has a structure in which the vibration generator 1 is integrated with the trunnion 2 to satisfy the above-mentioned demand.

That is, the vibration generator 1 having the sample table 3 on the top is fixed to the ear shafts 2a, 2a of the trunnion 2 to form the vibration tester 10, and the vibration generator 1 is ear-mounted in the required vibration direction. By pivoting the shafts 2a, 2a and fixing them in the required posture, the test can be performed not only in the vertical direction but also in any vibration angle direction including the horizontal direction.

Reference numeral 9 in FIG. 3A indicates a table.

[0006]

[Problems to be solved by the device]

 By the way, in the conventional vibration tester as described above, a large test space is required because the trunnion occupies a large area. Therefore, in the case of a small test space, as shown in Fig. 3 (b), a vibration tester 10 ', which can install a vibration generator having a sample table on the top directly on the table 9, must be used. As a result, there is a problem that two vibration generators are required.

The present invention is intended to solve such a problem, in which a vibration generator having a sample table on an upper portion is detachably supported by a support frame member, and the support frame member is a trunnion stand. By providing a vibration tester that can be fixed in the required posture, the vibration tester can be easily selected and used in two types of usage modes according to the test space without any modification to the vibration generator. The purpose is to do.

[0008]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the vibration tester of the present invention comprises a vibration generator having a sample table on the upper portion, a support frame member capable of detachably supporting the vibration generator, and both sides of the support frame member. Each of them comprises a protruding ear shaft, a trunnion stand having bearings for supporting these ear shafts, and a clamp mechanism capable of fixing the support frame member to the trunnion stand in a desired posture. It is characterized by that.

[0009]

[Action]

 In the above-described vibration tester of the present invention, by mounting or removing the vibration generator on the support frame member, a vibration test in which one vibration generator is directly placed on the table and a required vibration on the trunnion stand are performed. It can be selected and used for two types of vibration tests of the vibration test under the posture.

[0010]

【Example】

 A vibration tester as one embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing a state in which a vibration generator is removed from a support frame member, and FIG. 2 is a perspective view of a clamp mechanism. The same reference numerals as those in FIGS. 3 (a) and 3 (b) in FIGS. 1 and 2 indicate substantially the same components.

The vibration tester 10 of this embodiment also has a cylindrical vibration generator 1 having a sample table (not shown) at the top and a vibrating device incorporated therein, and the vibration generator 1 can be attached and detached. It comprises a supporting frame member 11 which can be supported and a trunnion stand 12 which supports the supporting frame member.

In this case, the vibration generator 1 has a structure in which it can be directly installed on the table 9 to perform a vibration test as a single unit.

In the structure shown in FIG. 1, the vibration generator 1 is fitted into the circular hole portion 11 a of the support frame member 11 and the step portion 1 a is brought into contact with the upper surface of the support frame member 11, so that the vibration generator 1 is It is attached to the support frame member 11.

On the other hand, the support frame member 11 is provided with a pair of ear shafts 14, 14 so as to face each other, and the outer end portions of the both ear shafts 14, 14 are rotatably supported by the bearing portion of the trunnion stand 12. In order to fix the support frame member 11 in a desired posture, that is, as a clump mechanism capable of fixing the binaural shafts 14 and 14, as shown in FIG. 2, the slot 13 is attached to the bearing portion of the trunnion stand 12. Is formed and the bolts 15 for tightening the slots 13 are attached.

In the case of this embodiment, the support frame member 11 has a circular hole portion 11a into which the vibration generator 1 can be inserted, and an upper surface which can be attached to the step portion 1a of the vibration generator 1. It is composed of a circular ring-shaped metal fitting.

In the above structure, the vibration generator 1 is mounted on the trunnion stand 12 by mounting the vibration generator 1 from above the support frame member 11 to the circular hole 11a formed in the center of the support frame member 11. All you have to do is insert it. And in this case, it should be noted that the vibration generator 1 of the type that can be directly mounted on the table and subjected to the vibration test as a single unit without any modification is used as it is. This is a point that can be done.

Then, the vibration generator 1 mounted on the support frame member 11 is tilted about the ear shaft 14, set in a desired posture (including a horizontal state), and the tightening bolts 15 are tightened. It is possible to perform a vibration test in a desired posture.

It is needless to say that the vibration generator 1 can be easily removed from the support frame member 11 in order to use the vibration generator 1 as a single unit.

As described above, in the case of this embodiment, the vibration generator can be attached to the support frame member and used for a vibration test in a desired posture through the trunnion stand without any improvement. Therefore, one vibration generator can be used for two kinds of tests, a vibration test in which it is directly placed on a table and a vibration test in a desired posture on a trunnion stand.

In the embodiment described above, the vibration generator is mounted on the support frame member mainly by engaging the step portion of the vibration generator with the upper surface of the ring-shaped metal fitting of the support frame member. In order to make the above mounting more reliable, a number of tightening bolts are attached to the periphery of the hole of the ring-shaped metal fitting, and the vibration generator is tightened with these tightening bolts from the entire circumferential direction of the support frame. A mechanism for fixing to the member may be attached.

The fixing mechanism using the tightening bolt is effective when the vibration testing machine having an external shape without the step portion is installed at an angle, for example, when installed in a horizontal state.

[0022]

[Effect of the device]

 As described in detail above, the vibration tester of the present invention has the following effects and advantages. (1) Since the vibration generator can be easily attached to and removed from the trunnion stand, one vibration generator can be used for the vibration test using only the vibration tester, depending on the test space. Can be mounted on a trunnion stand and easily selected and used for two types of vibration tests, a vibration test in a desired posture. (2) Since the effect of the above (1) can be obtained without performing any processing on the conventional vibration generator, it is advantageous in terms of cost.

[Brief description of drawings]

FIG. 1 is a perspective view showing a state where a vibration generator of a vibration tester according to an embodiment of the present invention is removed from a support frame member.

FIG. 2 is a perspective view of the clamp mechanism.

3A and 3B are side views of a conventional vibration testing machine.

[Explanation of symbols]

 1 Vibration generator 10 Vibration tester 11 Support frame member 11a Circular hole 12 Trunnion stand 13 Slot 15 Tightening bolt

Claims (1)

[Scope of utility model registration request] 1. A vibration generator having a sample table on an upper portion thereof, a support frame member capable of detachably supporting the vibration generator, and ear shafts projecting from both sides of the support frame member, respectively. A trunnion stand with a bearing that supports the ear shaft,
A vibration testing machine, comprising a clamp mechanism capable of fixing the support frame member to the trunnion stand in a desired posture.