CN211206075U - Tension-compression type measuring instrument for flexural creep resistance of hard plastic - Google Patents
Tension-compression type measuring instrument for flexural creep resistance of hard plastic Download PDFInfo
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- CN211206075U CN211206075U CN201922188497.5U CN201922188497U CN211206075U CN 211206075 U CN211206075 U CN 211206075U CN 201922188497 U CN201922188497 U CN 201922188497U CN 211206075 U CN211206075 U CN 211206075U
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Abstract
The utility model discloses a resistant bending creep performance's of stereoplasm plastics formula measuring instrument that draws, including bed plate, support riser, sample bracing piece, draw and press frame, metal rope, carousel, pivot, pointer, weight, the gravity of weight is transmitted through the metal rope and is drawn the middle part of pressing the frame to the plastics sample strip and upwards exert the pulling force, and the metal rope is pressed in the recess on carousel outer edge, measures the resistant bending creep performance of stereoplasm plastics through carousel pivoted scale. The utility model discloses can accurate measurement stereoplasm plastics the bending creep resistance can, need not power consumptive, simple structure is small and exquisite, simple in design and make simple, convenient to use, easily operation in long-time measurement process, be favorable to using widely.
Description
Technical Field
The utility model belongs to the technical field of the performance test of material, specifically relate to a resistant tension-compression formula measuring instrument of bending creep property of rigid plastic.
Background
When the plastic product is used, under the action of a stress, the shape and the size of the plastic product are changed due to creep deformation caused by the movement and the slippage of macromolecular chains in the plastic product, so that the service life of the plastic product is shortened. The creep resistance of the plastic can be measured by measuring the tensile creep amount of the plastic sample strip under the action of tensile stress and measuring the bending creep amount of the plastic sample strip under the action of bending stress. The creep process of the rigid plastic is very slow under the action of stress, the creep amount of the rigid plastic usually needs to be measured for a long time, sometimes days or even months, and the current instruments for measuring the tensile and bending creep properties of the plastic on the market have the defects of long time consumption, complex structure, high manufacturing cost and the like. Therefore, it is necessary to design and develop an instrument which has reasonable structure, simple manufacture, convenient use, energy consumption saving in long-time measurement process and capability of accurately measuring the bending creep resistance of the hard plastic.
Disclosure of Invention
An object of the utility model is to overcome not enough among the above-mentioned prior art, provide a resistant tension-compression formula measuring instrument of bending creep performance of rigid plastic, its simple structure, reasonable in design and make simple, low in manufacturing cost, can effectually survey the resistant bending creep performance of rigid plastic.
In order to achieve the above object, the utility model adopts the following technical scheme: a tension-compression type measuring instrument for the bending creep resistance of hard plastics is characterized in that: comprises a base plate, a supporting vertical plate, a sample supporting rod, a tension and compression frame, a metal rope, a turntable, a rotating shaft, a pointer and a weight; the supporting vertical plate is vertically connected to the base plate; the sample supporting rods are connected to the supporting vertical plates, the sample supporting rods are supported at two ends of the upper surface of the rigid plastic sample strip and play a role in supporting the two ends of the rigid plastic sample strip, the rigid plastic sample strip penetrates through the pulling and pressing frame, the two ends of the rigid plastic sample strip are positioned below the sample supporting rods, and the upper surface of the rigid plastic sample strip is tightly attached to the sample supporting rods; the upper frame of the tension and compression frame is connected with one end of a metal rope, and the other end of the metal rope is connected to a weight; the outer edge of the turntable is provided with a groove, and the metal rope is pressed in the groove on the outer edge of the turntable; the rotating shaft penetrates through the center of the rotating disc, one end of the rotating shaft is connected to the supporting vertical plate, and the other end of the rotating shaft is connected with a pointer; scales are drawn on the surface of one side of the turntable, which is close to the pointer.
The tension-compression type measuring instrument for the bending creep resistance of the hard plastic is characterized in that: the sample supporting rod, the tension and compression frame, the rotary table, the rotary shaft, the pointer and the weight are made of metal materials.
When the tension-compression type measuring instrument for the bending creep resistance of the hard plastic is used, the hard plastic sample strip penetrates through the tension-compression frame, two ends of the hard plastic sample strip are located below the sample supporting rod, the upper surface of the hard plastic sample strip is tightly attached to the sample supporting rod, the sample supporting rod is supported at two ends of the upper surface of the hard plastic sample strip, and the two ends of the hard plastic sample strip are supported. The gravity of the weight is transmitted to the pulling and pressing frame through the metal rope, so that the pulling and pressing frame exerts pulling and pressing force upwards on the middle part of the plastic sample strip, and the scale reading on the turntable indicated by the pointer when the pulling and pressing start is recorded. After a certain time, the scale reading on the rotating disc indicated by the pointer is recorded. And (3) according to the scale reading on the rotating disc indicated by the pointer when the pulling and pressing are started and the scale reading on the rotating disc indicated by the pointer after a certain time, the downward movement displacement of the weight can be obtained, namely the bending creep deformation of the rigid plastic sample strip is measured under the action of the pulling and pressing force formed by the gravity of the weight on the pulling and pressing frame within the certain time. The smaller the bending creep deformation amount of the sample strip of rigid plastic in the certain time, the better the bending creep resistance of the rigid plastic.
Compared with the prior art, the utility model has the following advantage:
1. the creep process of the hard plastic is very slow under the action of stress, the measurement of the creep amount of the hard plastic usually needs a long time, sometimes days or even months, and the utility model does not need power consumption in the long-time measurement process of the bending creep resistance of the hard plastic, thereby saving energy;
2. the weight, the metal rope and the pulling and pressing frame can be taken down from the turntable, so that the parts of the bending creep resistance tester provided by the utility model can be disassembled and then put into the packing box, and the structure of the utility model is small and portable, so that the bending creep resistance tester provided by the utility model is convenient to carry;
3. the utility model is convenient to use, easy to test and operate and beneficial to popularization and use;
4. the utility model has the advantages of simple structure and reasonable design, make simply, be favorable to using widely.
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Drawings
Fig. 1 is the installation connection schematic diagram of the base plate, the supporting vertical plate, the sample supporting rod, the tension and compression frame, the metal rope, the turntable, the rotating shaft, the pointer and the weight of the utility model.
Fig. 2 is a perspective view of the tension/compression frame of the present invention.
Description of reference numerals:
1-base plate; 2, supporting a vertical plate; 3-sample support bar; 4, pulling and pressing the frame; 5-a metal rope;
6, rotating the disc; 7-a pointer; 8, a rotating shaft; 9-weight; 10-rigid plastic sample strip.
Detailed Description
As shown in fig. 1 and 2, the utility model comprises a base plate (1), a supporting vertical plate (2), a sample supporting rod (3), a drawing and pressing frame (4), a metal rope (5), a turntable (6), a rotating shaft (8), a pointer (7) and a weight (9); the sample support device comprises a support vertical plate (2), a sample support rod (3) and a sample pull-press frame (4), wherein the support vertical plate (2) is vertically connected to a base plate (1), the sample support rod (3) is connected to the support vertical plate (2), the sample support rod (3) is supported at two ends of the upper surface of a rigid plastic sample strip (10) and plays a supporting role on two ends of the rigid plastic sample strip (10), the rigid plastic sample strip (10) penetrates through the pull-press frame (4) and enables two ends of the rigid plastic sample strip (10) to be located below the sample support rod (3), and the upper surface of the rigid plastic sample strip (10) is tightly attached to the sample support; the upper frame of the tension and compression frame (4) is connected with one end of a metal rope (5), and the other end of the metal rope (5) is connected to a weight (9); the outer edge of the rotary table (6) is provided with a groove, and the metal rope (5) is pressed in the groove on the outer edge of the rotary table (6); the rotating shaft (8) penetrates through the center of the rotating disc (6), one end of the rotating shaft (8) is connected to the supporting vertical plate (2), and the other end of the rotating shaft (8) is connected with a pointer (7); scales are drawn on the surface of one side, close to the pointer (7), of the rotating disc (6).
In this embodiment, the sample support rod (3), the tension and compression frame (4), the turntable (6), the rotating shaft (8), the pointer (7) and the weight (9) are made of metal materials.
The utility model discloses a theory of operation does: the hard plastic sample strip 10 penetrates through the drawing and pressing frame 4, two ends of the hard plastic sample strip 10 are located below the sample supporting rod 3, the upper surface of the hard plastic sample strip 10 is tightly attached to the sample supporting rod 3, the sample supporting rod 3 is supported at two ends of the upper surface of the hard plastic sample strip 10, and the two ends of the hard plastic sample strip 10 are supported. The gravity of the weight 9 is transmitted to the tension and compression frame 4 through the metal rope 5, so that the tension and compression frame 4 exerts tension and compression force on the middle part of the plastic sample strip 10 upwards, and the scale reading on the turntable 6 indicated by the pointer 7 when the tension and compression starts is recorded. After a certain time, the scale reading on the rotating disc 6 indicated by the pointer 7 is recorded. According to the scale reading on the rotating disc 6 indicated by the pointer 7 when the pulling and pressing are started and the scale reading on the rotating disc 6 indicated by the pointer 7 after a certain time, the downward movement displacement of the weight 9 can be obtained, namely the bending creep deformation of the rigid plastic sample strip 10 under the action of the pulling and pressing force formed by the gravity of the weight 9 on the pulling and pressing frame 4 in the certain time. The smaller the amount of bending creep deformation of the rigid plastic sample strip 10 in this certain time, the better the bending creep resistance of the rigid plastic.
Claims (2)
1. A tension-compression type measuring instrument for the bending creep resistance of hard plastics is characterized in that: comprises a base plate (1), a supporting vertical plate (2), a sample supporting rod (3), a pulling and pressing frame (4), a metal rope (5), a turntable (6), a rotating shaft (8), a pointer (7) and a weight (9); the sample support device comprises a support vertical plate (2), a sample support rod (3) and a sample pull-press frame (4), wherein the support vertical plate (2) is vertically connected to a base plate (1), the sample support rod (3) is connected to the support vertical plate (2), the sample support rod (3) is supported at two ends of the upper surface of a rigid plastic sample strip (10) and plays a supporting role on two ends of the rigid plastic sample strip (10), the rigid plastic sample strip (10) penetrates through the pull-press frame (4) and enables two ends of the rigid plastic sample strip (10) to be located below the sample support rod (3), and the upper surface of the rigid plastic sample strip (10) is tightly attached to the sample support; the upper frame of the tension and compression frame (4) is connected with one end of a metal rope (5), and the other end of the metal rope (5) is connected to a weight (9); the outer edge of the rotary table (6) is provided with a groove, and the metal rope (5) is pressed in the groove on the outer edge of the rotary table (6); the rotating shaft (8) penetrates through the center of the rotating disc (6), one end of the rotating shaft (8) is connected to the supporting vertical plate (2), and the other end of the rotating shaft (8) is connected with a pointer (7); scales are drawn on the surface of one side, close to the pointer (7), of the rotating disc (6).
2. The tension-compression type measuring instrument for the bending creep resistance of the hard plastic according to claim 1, wherein: the sample supporting rod (3), the pulling and pressing frame (4), the turntable (6), the rotating shaft (8), the pointer (7) and the weight (9) are made of metal materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922188497.5U CN211206075U (en) | 2019-12-10 | 2019-12-10 | Tension-compression type measuring instrument for flexural creep resistance of hard plastic |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922188497.5U CN211206075U (en) | 2019-12-10 | 2019-12-10 | Tension-compression type measuring instrument for flexural creep resistance of hard plastic |
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| CN211206075U true CN211206075U (en) | 2020-08-07 |
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| CN201922188497.5U Active CN211206075U (en) | 2019-12-10 | 2019-12-10 | Tension-compression type measuring instrument for flexural creep resistance of hard plastic |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110793868A (en) * | 2019-12-10 | 2020-02-14 | 陕西理工大学 | Tension-compression type measuring instrument for flexural creep resistance of hard plastic |
| CN116296761A (en) * | 2023-04-23 | 2023-06-23 | 靖江新舟合金材料有限公司 | Creep resistance testing device for zinc-aluminum-silicon-magnesium rare earth alloy ingot |
-
2019
- 2019-12-10 CN CN201922188497.5U patent/CN211206075U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110793868A (en) * | 2019-12-10 | 2020-02-14 | 陕西理工大学 | Tension-compression type measuring instrument for flexural creep resistance of hard plastic |
| CN116296761A (en) * | 2023-04-23 | 2023-06-23 | 靖江新舟合金材料有限公司 | Creep resistance testing device for zinc-aluminum-silicon-magnesium rare earth alloy ingot |
| CN116296761B (en) * | 2023-04-23 | 2023-10-24 | 靖江新舟合金材料有限公司 | Creep resistance testing device for zinc-aluminum-silicon-magnesium rare earth alloy ingot |
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