Small-force-value large-deformation measuring device

Abstract

The utility model belongs to the technical field of large deformation measurement, and particularly relates to a small-force-value large deformation measuring device which comprises a deformation measuring device body, a mounting base is arranged on the front side of the upper end of a supporting seat of the deformation measuring device body, and a fixed supporting counterweight pipe is arranged on the left side of the upper end of the mounting base. A wire guide wheel assembly is arranged at the upper end of the fixed supporting balance weight pipe, a sliding rod is fixedly connected to the position, located on the right side of the fixed supporting balance weight pipe, of the upper end of the mounting base, and the sliding rod makes contact with the wire guide wheel assembly. According to the utility model, hard aluminum alloy materials are completely processed and formed, so that the weight is reduced and the friction force is reduced; the traditional double-group wire guide wheel is changed into a single-group wire guide wheel, so that the friction of the guide wheels is reduced; compared with a traditional large deformation measuring device, the small-force-value large deformation measuring device has the advantages that the flexibility is obviously improved, and the tensile deformation test of a small-force-value sample can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of large deformation measurement, and particularly relates to a small force value large deformation measurement device. Background Technique

[0002] At present, the testing machine technology in China has developed rapidly, and breakthroughs have been made in the fields of measurement technology, control technology, computer application technology, DSP technology, full digital technology, etc. This has also promoted the further improvement and development of products such as electronic universal testing machines, microcomputer controlled hydraulic universal testing machines, electro-hydraulic servo dynamic and static universal testing machines, high-frequency fatigue testing machines, dynamic balancing machines, large-tonnage electric vibration tables, and hardness meters in China;

[0003] In addition, the development of mechanical property testing systems with multi-channel and multi-degree-of-freedom coordinated loading and actual working condition simulation test systems has also promoted the birth of more new products, which have played a promoting role in the development of the testing machine industry in China;

[0004] With the development of the country's basic strategic industries, ten revitalization industries, emerging industries, and modern manufacturing service industries (independent third-party testing institutions), new, more, higher, and more complex requirements have been put forward for the testing and experimentation of new materials, components, structural parts, whole machines and vehicles, and various engineering projects, which have brought new opportunities for the development of the testing machine industry.

[0005] The large deformation measurement device is an important accessory of the testing machine and is used for accurately measuring the deformation amount of materials with a large deformation amount. Conventional large deformation devices are only suitable for the determination of the tensile strain performance of specimens such as vulcanized rubber or thermoplastic rubber according to GB / T528. Such specimens have a large force value, and the large deformation device clamped on the specimen will not affect the force value measurement result;

[0006] For specimens with a small force value, such as medical gloves, condoms, etc., whose force values are mostly within 5-10N, the self-friction of the previous traditional large deformation device is too large. This leads to unstable deformation data.

[0007] Therefore, in view of the above problems, it is necessary to develop a large deformation measurement device with smaller friction and targeting the material characteristics of small force values. Content of the Utility Model

[0008] The purpose of the utility model is to provide a small force value large deformation measurement device, which solves the problem that for specimens with a small force value, such as medical gloves, condoms, etc., whose force values are mostly within 5-10N, the self-friction of the previous traditional large deformation device is too large, resulting in unstable deformation data.

[0009] To achieve the above object, the utility model provides the following technical solutions: A small-force large-deformation measurement device, including the main body of the deformation measurement device, an installation base is arranged on the front side of the upper end of the support seat of the deformation measurement device main body, a fixed support counterweight tube is arranged on the left side of the upper end of the installation base, a wire wheel assembly is arranged on the upper end of the fixed support counterweight tube, a slide bar is fixedly connected on the upper end of the installation base and on the right side of the fixed support counterweight tube, the slide bar is in contact with the wire wheel assembly, two uniformly distributed sliding sleeves are arranged on the outer side of the slide bar, an upper deformation clamp is arranged on the front side of the upper sliding sleeve, and a lower deformation clamp is arranged on the front side of the lower sliding sleeve.

[0010] Preferably, the main body of the installation base is U-shaped, and the installation base is made of aluminum alloy. Through the setting of the aluminum alloy material, the installation base has good lightness.

[0011] Preferably, a plurality of fixed support counterweight tubes are provided, and the plurality of fixed support counterweight tubes are uniformly distributed on the installation base. Through the setting of the fixed support counterweight tubes, the wire wheel assembly can be supported for use.

[0012] Preferably, the overall shape of the sliding sleeve is cylindrical, and the sliding sleeve is made of aluminum alloy. Through the setting of the aluminum alloy material, the sliding sleeve has good lightness.

[0013] Preferably, retraction adjustment screws are arranged inside both the lower deformation clamp and the upper deformation clamp. Through the setting of the retraction adjustment screws, the lower deformation clamp and the upper deformation clamp can be adjusted for use.

[0014] Preferably, chuck fixing cards are arranged on the outer sides of both the lower deformation clamp and the upper deformation clamp, and the chuck fixing cards are in contact with the fixed support counterweight tube. Through the setting of the chuck fixing cards, the lower deformation clamp and the upper deformation clamp can be limited and supported for use.

[0015] Preferably, the main body of the chuck fixing card is a rectangular plate, and the chuck fixing card is made of aluminum alloy. Through the setting of the aluminum alloy material, the chuck fixing card has good lightness.

[0016] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0017] The utility model is entirely processed and formed from hard aluminum alloy materials, reducing weight and friction; changing from the traditional double-group wire wheels to a single-group wire wheel to reduce the friction of the guide wheels; compared with the traditional large-deformation measurement device, the flexibility of this small-force large-deformation measurement device is significantly improved, and it can meet the tensile deformation test of small-force specimens. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional view of the overall structure of the utility model;

[0019] Figure 2 For the present utility model Figure 1 three-dimensional view of the sliding sleeve.

[0020] In the figure: 1. Deformation measurement device body; 2. Installation base; 3. Fixed support counterweight pipe; 4. Wire wheel assembly; 5. Slide bar; 6. Sliding sleeve; 7. Upper deformation clamp; 8. Lower deformation clamp; 9. Retraction adjustment screw; 10. Chuck fixing clamp. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figure 1 , Figure 2 , a small-force large-deformation measurement device, including a deformation measurement device body 1. An installation base 2 is provided on the front side of the upper end of the support seat of the deformation measurement device body 1. A fixed support counterweight pipe 3 is provided on the left side of the upper end of the installation base 2. A wire wheel assembly 4 is provided at the upper end of the fixed support counterweight pipe 3. A slide bar 5 is fixedly connected to the upper end of the installation base 2 and on the right side of the fixed support counterweight pipe 3. The slide bar 5 is in contact with the wire wheel assembly 4. Two uniformly distributed sliding sleeves 6 are provided on the outer side of the slide bar 5. An upper deformation clamp 7 is provided on the front surface of the upper sliding sleeve 6, and a lower deformation clamp 8 is provided on the front surface of the lower sliding sleeve 6.

[0023] Please refer to Figure 1 , Figure 2 , the main body of the installation base 2 is U-shaped. The installation base 2 is made of aluminum alloy. Through the setting of the aluminum alloy material, the installation base 2 has good lightness. A plurality of fixed support counterweight pipes 3 are provided, and the plurality of fixed support counterweight pipes 3 are uniformly distributed on the installation base 2. Through the setting of the fixed support counterweight pipe 3, the wire wheel assembly 4 can be supported and used.

[0024] Please refer to Figure 1 , Figure 2, the overall shape of the sliding sleeve 6 is cylindrical. The sliding sleeve 6 is made of aluminum alloy. Through the setting of the aluminum alloy material, the sliding sleeve 6 has good lightness. The internal parts of the lower deformation clamp 8 and the upper deformation clamp 7 are both provided with retraction adjustment screws 9. Through the setting of the retraction adjustment screws 9, the lower deformation clamp 8 and the upper deformation clamp 7 can be adjusted for use. The outer sides of the lower deformation clamp 8 and the upper deformation clamp 7 are both provided with chuck fixing clamps 10. The chuck fixing clamps 10 are in contact with the fixed support counterweight pipe 3. Through the setting of the chuck fixing clamps 10, the lower deformation clamp 8 and the upper deformation clamp 7 can be limited and supported for use. The main body of the chuck fixing clamp 10 is a rectangular plate, and the chuck fixing clamp 10 is made of aluminum alloy. Through the setting of the aluminum alloy material, the chuck fixing clamp 10 has good lightness.

[0025] The specific implementation process of the present utility model is as follows: During use, the small-force large-deformation measuring device is all processed and formed by using hard aluminum alloy materials, reducing weight and friction; the traditional double-group wire wheels are changed to single-group wire wheels to reduce the friction of the wire wheels; compared with the traditional large-deformation measuring device, the flexibility of the small-force large-deformation measuring device has been significantly improved, and it can meet the tensile deformation test of small-force specimens.

[0026] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A small-force large-deformation measurement device, comprising a deformation measurement device body (1), characterized in that: At the front side of the upper end of the support base of the deformation measurement device body (1), there is an installation base (2). At the left side of the upper end of the installation base (2), there is a fixed support counterweight pipe (3). At the upper end of the fixed support counterweight pipe (3), there is a wire wheel assembly (4). At the upper end of the installation base (2) and on the right side of the fixed support counterweight pipe (3), there is a slide bar (5) fixedly connected. The slide bar (5) contacts the wire wheel assembly (4). On the outer side of the slide bar (5), there are two uniformly distributed sliding sleeves (6). On the front side of the upper sliding sleeve (6), there is an upper deformation clamp (7). On the front side of the lower sliding sleeve (6), there is a lower deformation clamp (8).

2. The small-force large-deformation measurement device according to claim 1, wherein: The main body of the installation base (2) is U-shaped, and the installation base (2) is made of aluminum alloy.

3. The small-force large-deformation measurement device according to claim 1, characterized in that: There are multiple fixed support counterweight pipes (3), and the multiple fixed support counterweight pipes (3) are uniformly distributed on the installation base (2).

4. A small-force large-deformation measurement device according to claim 1, characterized in that: The overall shape of the sliding sleeve (6) is cylindrical, and the sliding sleeve (6) is made of aluminum alloy.

5. The small-force large-deformation measurement device according to claim 1, wherein: Inside both the lower deformation clamp (8) and the upper deformation clamp (7), there is a retraction adjustment screw (9).

6. The small-force large-deformation measurement device according to claim 1, characterized in that: On the outer sides of both the lower deformation clamp (8) and the upper deformation clamp (7), there is a chuck fixing clip (10), and the chuck fixing clip (10) contacts the fixed support counterweight pipe (3).

7. The small-force large-deformation measurement device according to claim 6, wherein: The main body of the chuck fixing clip (10) is a rectangular plate, and the chuck fixing clip (10) is made of aluminum alloy.

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