CN214251453U

CN214251453U - Fastener lateral vibration test device

Info

Publication number: CN214251453U
Application number: CN202022183830.6U
Authority: CN
Inventors: 李国良
Original assignee: Suzhou Zhaowuyi Precision Hardware Co ltd
Current assignee: Suzhou Zhaowuyi Precision Hardware Co ltd
Priority date: 2020-09-29
Filing date: 2020-09-29
Publication date: 2021-09-21
Anticipated expiration: 2030-09-29

Abstract

The utility model discloses a fastener transverse vibration test device, including excitation system, last mounting, lower mounting, force sensor, acceleration sensor and data collection station, it is overhead to go up the excitation that one side of mounting is fixed in the excitation system, force sensor is fixed in between mounting and the excitation head, the mounting is adjusted well the setting about with last mounting down to be connected through the test fastener, acceleration sensor is fixed in the mounting upper surface, data collection station fixed mounting is in mounting upper surface down, force sensor and acceleration sensor all are connected with the data collection station electricity. Fastener transverse vibration test device, apply the transverse load that the law changed to last mounting through excitation system, utilize the vibration displacement acceleration reflection of last mounting to test the clamp force of fastener, the load is easily controlled, the test principle is simple, device simple to operate.

Description

Fastener lateral vibration test device

Technical Field

The utility model relates to a fastener test field, in particular to fastener lateral vibration test device.

Background

With the development of industry, fasteners have become a class of standardized, serialized and generalized common parts for a long time and are the most widely applied mechanical parts in various industries, the looseness prevention of the fasteners is a durable problem, the looseness is caused by the rotation looseness of gaps of thread contact surfaces under the action of transverse dynamic loads, the rotation of the fasteners is avoided by increasing friction and filling the gaps, such as falling-resistant screws, the effects of various looseness prevention measures are usually verified by transverse vibration test devices, and the requirements of various countries are set.

An object of the utility model is to provide a fastener lateral vibration test device to solve the problem that proposes among the above-mentioned background art.

Disclosure of Invention

Utility model purpose: in order to overcome not enough above, the utility model aims at providing a fastener transverse vibration test device exerts the transverse load that the law changed through excitation system to last mounting, utilizes the vibration displacement acceleration reflection of last mounting to test the clamp force of fastener, and the load is easily controlled, and the test principle is simple, device simple to operate.

The technical scheme is as follows: in order to realize the aim, the utility model provides a transverse vibration test device for a fastener, which comprises an excitation system, an upper fixing piece, a lower fixing piece, a force sensor, an acceleration sensor and a data acquisition unit, one side of the upper fixing piece is fixed on an excitation head of an excitation system, the force sensor is fixed between the upper fixing piece and the excitation head, the lower fixing piece and the upper fixing piece are vertically aligned, and is connected through a test fastener, the acceleration sensor is fixed on the upper surface of the upper fixing piece, the data collector is fixedly arranged on the upper surface of the lower fixing piece, the force sensor and the acceleration sensor are electrically connected with the data acquisition unit, the force sensor is used for measuring the magnitude of the transverse force applied to the upper fixing piece, and the acceleration sensor is used for measuring the displacement change rate of the upper fixing piece, so that the looseness degree of the test fixing piece is obtained.

Further, according to the transverse vibration test device for the fastener, the excitation system is installed on the installation base through the fixed base, spring screws are arranged on two sides of the fixed base, threaded holes are formed in the corresponding positions of the installation base, and the lower fixing piece is installed on the fixed base.

Furthermore, according to the transverse vibration test device for the fastener, the lower fixing piece is provided with a group of through holes with different diameters, and the threaded holes are correspondingly provided with multiple groups on the mounting seat and used for the vibration test of the fasteners with different specifications.

Furthermore, according to the transverse vibration test device for the fastener, a group of symmetrical spherical balls are fixedly arranged on two sides of the threaded hole, correspondingly, a semi-spherical hole is formed in the corresponding position of the lower surface of the fixing base of the vibration excitation system, so that the fixing base is convenient to move and position, and the transverse force is guaranteed to act on the upper fixing piece in the forward direction.

Further, in the above-mentioned lateral vibration test device for a fastener, the force sensor, the upper fixing member and the vibration exciting head are fixed by adhesion to form a whole.

Furthermore, according to the transverse vibration test device for the fastener, the lower fixing piece is installed on the fixing base through welding, and the fixing is firm.

Furthermore, in the transverse vibration test device for the fastener, the fixing seat is fixed on the ground through the ground nails on the flanges at two sides.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a fastener transverse vibration test device applys the transverse load that the law changed to last mounting through excitation system, utilizes the clamp force that the vibration displacement acceleration of last mounting reflects the test fastener, and the load is easily controlled, and the test principle is simple, device simple to operate.

2. The utility model discloses a fastener transverse vibration test device sets up different aperture through-holes through mounting under, sets up the fixed position that corresponds the group on the mount pad, utilizes spherical ball to move the location, adjusts convenience fast, raises the efficiency.

Drawings

Fig. 1 is a front view of the present invention;

fig. 2 is a top view of the present invention;

fig. 3 is a bottom plan view of the mid-excitation system of the present invention.

In the figure: 1. an excitation system; 11. a spring screw; 12. a semi-spherical pore; 2. An upper fixing member; 3. A lower fixing member; 31. a through hole; 4. Testing the fastener; 5. A data acquisition unit; 6. A force sensor; 7. an acceleration sensor; 8. A fixed seat; 81. a ground nail; 9. a mounting seat; 91. a threaded hole; 92. a spherical ball.

Detailed Description

The invention will be further elucidated with reference to the drawings and the specific embodiments.

Examples

The transverse vibration test device for the fastener, as shown in fig. 1, comprises an excitation system 1, an upper fixing part 2, a lower fixing part 3, a force sensor 6, an acceleration sensor 7 and a data acquisition unit 5, wherein one side of the upper fixing part 2 is fixed on an excitation head of the excitation system 1, the force sensor 6 is fixed between the upper fixing part 2 and the excitation head, the lower fixing part 3 and the upper fixing part 2 are vertically and positively arranged and are connected through a test fastener 4, the acceleration sensor 7 is fixed on the upper surface of the upper fixing part 2, the data acquisition unit 5 is fixedly installed on the upper surface of the lower fixing part 3, and the force sensor 6 and the acceleration sensor 7 are electrically connected with the data acquisition unit 5.

Further, with reference to fig. 1 to 3, in the above-mentioned transverse vibration test device for a fastener, the excitation system 1 is mounted on the mounting base 9 through a fixing base, spring screws 11 are disposed on two sides of the fixing base, a threaded hole 91 is disposed at a corresponding position of the mounting base 9, and the lower fixing member 3 is mounted on the fixing base 8.

Further, as shown in fig. 2, in the above-mentioned lateral vibration test device for a fastener, the lower fixing member 3 is provided with a group of through holes 31 with different diameters, and the threaded holes 91 are correspondingly provided with a plurality of groups on the mounting seat 9.

Further, referring to fig. 2 and 3, in the above-mentioned lateral vibration testing apparatus for a fastener, a set of symmetrical spherical balls 92 is fixed on both sides of the threaded hole 91, and correspondingly, a hemispherical hole 12 is formed in a corresponding position on the lower surface of the fixed base of the excitation system 1.

Further, in the above-mentioned lateral vibration test device for a fastener, the force sensor 6 is fixed to the upper fixing member 2 and the excitation head by adhesion.

Further, as shown in fig. 1, in the above-mentioned lateral vibration test device for a fastener, the lower fixing member 3 is mounted on the fixing base 8 by welding.

Further, as shown in fig. 2, in the above-mentioned fastener lateral vibration test device, the fixing base 8 is fixed on the ground through the ground nails 81 on the flanges at both sides.

The technical principles of the present invention have been described above in connection with specific embodiments, which are intended to explain the principles of the invention and should not be interpreted as limiting the scope of the invention in any way. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without any inventive effort, which would fall within the scope of the present invention.

Claims

1. The utility model provides a fastener lateral vibration test device which characterized in that: including excitation system (1), go up mounting (2), lower mounting (3), force sensor (6), acceleration sensor (7) and data collection station (5), it is overhead in the excitation of excitation system (1) to go up one side of mounting (2) and be fixed in, force sensor (6) are fixed in between mounting (2) and the excitation head, mounting (3) and last mounting (2) are adjusted well from top to bottom down and are set up down to be connected through test fastener (4), acceleration sensor (7) are fixed in upper surface of last mounting (2), data collection station (5) fixed mounting is in lower mounting (3) upper surface, force sensor (6) and acceleration sensor (7) all are connected with data collection station (5) electricity.

2. The fastener lateral vibration testing apparatus of claim 1, wherein: the excitation system (1) is installed on the mounting seat (9) through the fixed base, the two sides of the fixed base are provided with spring screws (11), the corresponding position of the mounting seat (9) is provided with a threaded hole (91), and the lower fixing piece (3) is installed on the fixing seat (8).

3. The fastener lateral vibration testing apparatus of claim 2, wherein: the lower fixing piece (3) is provided with a group of through holes (31) with different diameters, and the threaded holes (91) are correspondingly formed in the mounting seat (9) in a plurality of groups.

4. The fastener lateral vibration testing apparatus of claim 3, wherein: a group of symmetrical spherical balls (92) are fixedly arranged on two sides of the threaded hole (91), and a semi-spherical hole (12) is correspondingly arranged at a position corresponding to the lower surface of the fixed base of the excitation system (1).

5. The fastener lateral vibration testing apparatus of claim 1, wherein: and the force sensor (6) is fixed with the upper fixing piece (2) and the excitation head through bonding.

6. The fastener lateral vibration testing apparatus of claim 2, wherein: the lower fixing piece (3) is installed on the fixing seat (8) through welding.

7. The fastener lateral vibration testing apparatus of claim 2 or 6, wherein: the fixed seat (8) is fixed on the ground through ground nails (81) on flanges at two sides.