CN213022610U

CN213022610U - Large deformation measuring device

Info

Publication number: CN213022610U
Application number: CN202021442859.5U
Authority: CN
Inventors: 陈抗; 王欢; 黄小龙
Original assignee: Shenzhen Temet Instrument Equipment Co ltd
Current assignee: Shenzhen Temet Instrument Equipment Co ltd
Priority date: 2020-07-21
Filing date: 2020-07-21
Publication date: 2021-04-20
Anticipated expiration: 2030-07-21

Abstract

The utility model discloses a large deformation measuring device, including circular slab and stretching mechanism, stretching mechanism installs on the bottom surface of circular slab, it is equipped with a ring channel to encircle outer lane face round on the outer lane face of circular slab, the ring channel both sides all are equipped with a fixture, the place ahead of circular slab is equipped with the spout of an arc structure, the equal slidable mounting in spout both ends has the arc slider, arc slider one end all extends to the external world to all install the connecting rod, the equal bending of connecting rod one end is installed on fixture's outer wall, the fixture lower extreme has the arc pole through activity hinge mounting, the arc pole lower extreme passes through activity hinge mounting on stretching mechanism. The utility model discloses simple structure, it is small, conveniently carry, convenient operation, the sample both ends are fixed by fixture, and enable the sample through tension mechanism and be elongated with an curved state to increase measuring scope and comprehensiveness, guarantee the security of follow-up product.

Description

Large deformation measuring device

Technical Field

The utility model relates to a deformation measurement field, concretely relates to big deformation measuring device.

Background

In a mechanical test, when a sample with large deformation is subjected to a deformation measuring seat tensile test, the breaking elongation or deformation of the sample needs to be measured.

However, such a measurement method is not comprehensive, and in a real situation, the sample is not necessarily damaged by vertical elongation, but may be elongated in an arc shape, so that the test range is not comprehensive, and the subsequent quality is affected.

Disclosure of Invention

The utility model aims to solve the technical problem that a large deformation measuring device is provided to solve the problem of proposing among the above-mentioned background art.

The utility model discloses a realize through following technical scheme: the utility model provides a large deformation measuring device, including circular slab and drawing mechanism, drawing mechanism installs on the bottom surface of circular slab, it is equipped with a ring channel to encircle outer lane face round on the outer lane face of circular slab, the ring channel both sides all are equipped with a fixture, the place ahead of circular slab is equipped with the spout of an arc structure, the equal slidable mounting in spout both ends has the arc slider, arc slider one end all extends to the external world, and all install the connecting rod, the equal bending of connecting rod one end is installed on fixture's outer wall, fixture lower extreme has the arc pole through activity hinge mounting, the arc pole lower extreme passes through activity hinge mounting on drawing mechanism.

As the preferred technical scheme, the stretching mechanism comprises a first bearing, a second bearing, a nut, a screw rod and a hand wheel, wherein the center of the bottom surface of the circular plate protrudes downwards to form a fixing part, a first mounting hole is formed in the bottom surface of the fixing part, the first bearing is mounted in the first mounting hole, one end of the screw rod is mounted in an inner ring of the first bearing, the hand wheel is mounted at the other end of the screw rod, the nut is in threaded connection with the screw rod, the second bearing is mounted outside the nut, and the lower end of the arc-shaped rod is fixed on an outer ring of the second bearing through a movable hinge.

As the preferred technical scheme, the clamping mechanisms comprise circular pipes, pressing blocks, hand-screwed bolts and third bearings, a part of each circular pipe is arranged in an annular groove, the pressing blocks are arranged in the circular pipes, second mounting holes are formed in opposite surfaces of the pressing blocks, the third bearings are arranged in the second mounting holes, screw holes are formed in the outer wall surfaces of the circular pipes and are opposite to inner rings of the third bearings, the hand-screwed bolts are connected with the screw holes in a threaded mode, one ends of the hand-screwed bolts are arranged in the inner rings of the third bearings, and the upper ends of the arc-shaped rods are arranged on the bottom surfaces of the circular pipes through movable hinges.

As the preferred technical scheme, the cross sections of the sliding groove and the arc-shaped sliding block are arranged in a dovetail structure, and the sliding groove and the arc-shaped sliding block are matched with each other.

The utility model has the advantages that: the utility model discloses simple structure, it is small, conveniently carry, convenient operation, the sample both ends are fixed by fixture, and enable the sample through tension mechanism and be elongated with an curved state to increase measuring scope and comprehensiveness, guarantee the security of follow-up product.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a partial cross-sectional view taken at a-a in fig. 1.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected" and "disposed" are to be construed broadly, and may for example be fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 and 2, the utility model discloses a large deformation measuring device, including circular slab 1 and drawing mechanism, drawing mechanism installs on circular slab 1's bottom surface, it is equipped with a ring channel 18 to encircle outer lane face round on circular slab 1's the outer lane face, ring channel 18 both sides all are equipped with a fixture 3, the place ahead of circular slab 1 is equipped with spout 4 of an arc structure, the equal slidable mounting in spout 4 both ends has arc slider 13, arc slider 13 one end all extends to the external world, and all install connecting rod 2, the equal crooked installation of 2 one ends of connecting rod is on fixture 3's outer wall, fixture 3 lower extreme has arc pole 5 through the activity hinged joint, 5 lower extremes of arc pole pass through the activity hinged joint and install on drawing mechanism.

In this embodiment, the stretching mechanism includes first bearing 9, second bearing 6, nut 7, screw rod 8 and hand wheel 12, the downward protrusion of center department in circular plate 1 bottom surface forms a fixed part 11, be equipped with first mounting hole on the bottom surface of fixed part 11, first bearing 9 is installed in first mounting hole, screw rod 8 one end is installed in the inner ring of first bearing 9, hand wheel 12 is installed on the other end of screw rod 8, nut 7 threaded connection and screw rod 8 are last, second bearing 6 is installed in the outside of nut 7, 5 lower extremes of arc pole are all fixed in on the outer loop of second bearing 6 through the activity hinge.

In this embodiment, the clamping mechanisms include circular pipes 17, pressing blocks 14, hand-screwed bolts 16 and third bearings 15, a part of the circular pipes 17 is disposed in the annular groove 18, the pressing blocks 14 are disposed in the circular pipes 17, second mounting holes are disposed on opposite surfaces of the pressing blocks 14, the third bearings 15 are mounted in the second mounting holes, screw holes are disposed on inner rings of the third bearings 15, the outer wall surfaces of the circular pipes 17 are in threaded connection with the inner rings of the third bearings 15, the hand-screwed bolts 16 are in threaded connection with the screw holes, one ends of the hand-screwed bolts 16 are mounted in the inner rings of the third bearings 15, and the upper ends of the arc-shaped rods 5 are mounted on the bottom surfaces of the circular pipes 17 through movable hinges.

In this embodiment, the cross section of spout 4 and arc slider 13 all is the setting of dovetail structure, and the homogeneous phase matches between the two, has avoided arc slider to break away from the spout, and is effectual spacing with the circular tube, makes the circular tube can only be the arc form along the spout and removes.

When the device is used, two ends of a sample are respectively inserted into the circular tube, the hand-screwing bolt is rotated to enable the hand-screwing bolt to move inwards along the screw hole, the movement of the hand-screwing bolt drives the pressing block until the sample is tightly pressed and fixed in the circular tube through the pressing block, the circular plate is arranged in a circular structure, the sample is just arranged in the circular groove in an arc structure after being clamped, at the moment, the hand wheel is rotated, the rotation of the hand wheel drives the screw rod, the screw rod moves up and down after the screw rod rotates, the nut cannot rotate and can only move up and down because the nut is limited in the sliding groove by the arc rod, the circular tube, the connecting tube and the sliding block, the arc rod is driven by the movement of the screw rod, the circular tube moves downwards along the sliding groove in an arc state, so that the sample can cling to the inner wall of the circular groove to be elongated in an arc shape, the deformation under the arc state can be known quickly to increase the measuring range and comprehensiveness and ensure the product quality.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the creative work should be covered within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.

Claims

1. A large deformation measuring device is characterized in that: including circular slab (1) and drawing mechanism, drawing mechanism installs on the bottom surface of circular slab (1), it is equipped with an annular groove (18) to encircle outer lane face round on the outer lane face of circular slab (1), annular groove (18) both sides all are equipped with a fixture (3), the place ahead of circular slab (1) is equipped with spout (4) of an arc structure, equal slidable mounting in spout (4) both ends has arc slider (13), arc slider (13) one end all extends to the external world, and all install connecting rod (2), connecting rod (2) one end is all crooked to be installed on the outer wall of fixture (3), fixture (3) lower extreme has arc pole (5) through activity hinged joint, arc pole (5) lower extreme passes through activity hinged joint and installs on drawing mechanism.

2. The large deformation measuring device according to claim 1, wherein: the stretching mechanism comprises a first bearing (9), a second bearing (6), a nut (7), a screw rod (8) and a hand wheel (12), the center of the bottom surface of the circular plate (1) protrudes downwards to form a fixing part (11), a first mounting hole is formed in the bottom surface of the fixing part (11), the first bearing (9) is mounted in the first mounting hole, one end of the screw rod (8) is mounted in an inner ring of the first bearing (9), the hand wheel (12) is mounted on the other end of the screw rod (8), the nut (7) is in threaded connection with the screw rod (8), the second bearing (6) is mounted outside the nut (7), and the lower end of the arc-shaped rod (5) is fixed on an outer ring of the second bearing (6) through a movable hinge.

3. The large deformation measuring device according to claim 1, wherein: the clamping mechanism comprises a circular pipe (17), a pressing block (14), a hand-screwed bolt (16) and a third bearing (15), one part of the circular pipe (17) is arranged in an annular groove (18), the pressing block (14) is arranged in the circular pipe (17), a second mounting hole is formed in the opposite surface of the pressing block (14), the third bearing (15) is arranged in the second mounting hole, screw holes are formed in the outer wall surface of the circular pipe (17) and right opposite to the inner ring of the third bearing (15), the hand-screwed bolt (16) is in threaded connection and the screw holes, one end of the hand-screwed bolt (16) is arranged in the inner ring of the third bearing (15), and the upper end of the arc-shaped rod (5) is arranged on the bottom surface of the circular pipe (17) through a movable hinge.

4. The large deformation measuring device according to claim 1, wherein: the cross sections of the sliding groove (4) and the arc-shaped sliding block (13) are arranged in a dovetail structure, and the sliding groove and the arc-shaped sliding block are matched with each other.