CN217237597U - Press-in hardness test device - Google Patents
Press-in hardness test device Download PDFInfo
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- CN217237597U CN217237597U CN202220050605.1U CN202220050605U CN217237597U CN 217237597 U CN217237597 U CN 217237597U CN 202220050605 U CN202220050605 U CN 202220050605U CN 217237597 U CN217237597 U CN 217237597U
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- hardness test
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- weight
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Abstract
The utility model discloses a hardness test device impresses, including the support, sample elevating platform, rocking arm lifting unit, pressure head, steelyard subassembly, amesdial, stopwatch and balance stone roller, sample elevating platform, rocking arm lifting unit, pressure head, steelyard subassembly, amesdial, stopwatch all locate the corresponding position on the support, but sample elevating platform oscilaltion, elevating platform top is located to the pressure head. The lever scale assembly is composed of a cross rod, a weight plate and a connecting rod, one end of the cross rod is rotatably connected with the support, the weight plate is hung at the other end of the cross rod, the rocker arm lifting assembly is composed of a turntable, a worm wheel and a worm in the turntable, and the rocker arm lifting assembly can drive the worm wheel and the worm to move up and down through rotation of the turntable. The utility model discloses a hardness test device impresses can test the resistance deformability of resin sample, and is efficient, convenient to use, and the practicality is strong.
Description
Technical Field
The utility model relates to a hardness test device impresses belongs to test instrument technical field.
Background
In order to test the deformation resistance of the SMC product containing the glass fibers and truly reflect the flat thickening condition of the SMC, the penetration measurement is generally adopted, namely, the penetration depth of a needle point vertically penetrating into a sample under a certain load is measured. The existing instruments for measuring the penetration degree on the market have the defects of complex structure, high manufacturing cost and the like. There has been no report on a measuring instrument for measuring the penetration of a sample by measuring the vertical displacement of a needle bar with a dial gauge, which is a commercially available displacement measuring instrument for converting a general linear displacement into a rotational movement of a pointer through a gear or a lever and then reading on a dial. The penetration mode can damage the surface of a test material, and the pressure head needs to be maintained in time, so that the method is not beneficial to large-scale test.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to provide a can test the resistance deformability of resin sample, efficient, convenient to use, the hardness test device that impresses that the practicality is strong.
The utility model discloses a solve above-mentioned technical problem and propose a technical scheme is: the utility model provides a hardness test device impresses, includes the support, sample elevating platform, rocking arm lifting unit, pressure head, steelyard subassembly, amesdial, stopwatch and balance weight, sample elevating platform, rocking arm lifting unit, pressure head, steelyard subassembly, amesdial, stopwatch all locate the relevant position on the support, but sample elevating platform oscilaltion, sample elevating platform top is located to the pressure head.
The weight of the weight is 2kg, a handle is arranged on the side face of the weight, a notch is formed in the weight, and the handle and the weight are integrally formed.
The lever scale assembly is composed of a cross rod, a weight plate and a connecting rod, one end of the cross rod is rotatably connected with the support, the weight plate is hung at the other end of the cross rod, a weight is arranged on the weight plate, the connecting rod is rotatably connected with the cross rod and is perpendicular to the horizontal plane, the connecting rod is close to the rotary connection position of the cross rod and the support, the ratio of the distance from a fulcrum to the connecting rod to the distance from the fulcrum to one end of the weight plate is 1:5, the connecting rod can move up and down through the lever scale assembly, the pressure head is arranged at the bottom of the connecting rod, a fillet is arranged at the bottom end edge of the pressure head, the radius of the fillet is 10-15 mm, and a measuring head of the dial indicator is connected with the top of the connecting rod.
The rocking arm lifting assembly is composed of a turntable, a worm wheel and a worm in the turntable, the rocking arm lifting assembly can drive the worm wheel and the worm to move up and down through rotation of the turntable, the top end of the worm is abutted to the bottom of the cross rod close to the weight plate, and a grab handle is arranged on the turntable close to the edge in order to rotate the turntable.
The support is divided into an upper half part and a lower half part, the upper half part and the lower half part are arranged at intervals, the supporting parts are arranged on the same side end parts of the upper half part and the lower half part, and the upper half part, the lower half part and the supporting parts are integrally formed.
The sample lifting platform comprises a platform surface and a thread supporting column positioned below the platform surface, a threaded hole matched with the thread supporting column is formed in the lower half part, and the sample lifting platform is lifted through rotation of the thread supporting column.
The upper half part is a frame type front-back penetrating, and the connecting rod penetrates through the bottom of the upper half part and is coaxially arranged with the threaded supporting column.
The connecting rod penetrates through one section of the bottom of the upper half part, and the diameter of the connecting rod close to the pressure head is larger than the aperture of the through hole.
The rocking arm lifting unit locates on the supporting part, the supporting part is hollow cylinder, the outside of supporting part is located to the carousel, the supporting part is equipped with the through-hole with the carousel junction, through-hole fixed connection worm wheel is passed at the carousel back, the vertical setting of worm forms worm gear mechanism in the supporting part and with the worm wheel.
The utility model discloses has positive effect: the utility model discloses a hardness test device impresses rational in infrastructure and compact, convenient to use puts the sample on the sample elevating platform, and rotatory rocking arm makes pressure head and sample contact, and through the degree of depth that the pressure head fell under the test certain load, can reflect the resistance deformability of resin sample, convenient to use, the practicality is strong, and data reproducibility is high.
Drawings
The present invention will be further explained with reference to the drawings.
FIG. 1 is a schematic diagram of a press-in hardness tester according to an embodiment.
The above reference numerals are as follows:
the device comprises a support 1, an upper half part 11, a lower half part 12, a supporting part 13, a sample lifting platform 2, a table board 21, a threaded supporting column 22, a rocker arm lifting assembly 3, a rotary table 31, a grab handle 311, a worm 32, a pressure head 4, a lever scale assembly 5, a cross rod 51, a weight disc 52, a connecting rod 53, a dial indicator 6, a stopwatch 7, a weight 8 and a handle 81.
Detailed Description
Examples
Referring to fig. 1, the indentation hardness test device of this embodiment includes a support 1, a sample lifting platform 2, a rocker arm lifting assembly 3, a pressure head 4, a lever scale assembly 5, a dial indicator 6, a stopwatch 7 and a weight 8.
The bracket 1 is divided into an upper half part 11 and a lower half part 12, the upper half part 11 and the lower half part 12 are arranged at intervals, a supporting part 13 is arranged at the end part of the same side of the upper half part 11 and the lower half part 12, and the upper half part 11, the lower half part 12 and the supporting part 13 are integrally formed.
The lever scale assembly 5 comprises a cross rod 51, a weight plate 52 and a connecting rod 53, one end of the cross rod 51 is rotatably connected with the support 1, the weight plate 52 is hung at the other end of the cross rod 51, a weight 8 is arranged on the weight plate 52, the connecting rod 53 is rotatably connected with the cross rod 51 and is arranged perpendicular to the horizontal plane, the connecting rod 53 is close to the rotary connection position of the cross rod 51 and the support 1, the ratio of the distance from a fulcrum to the connecting rod 53 to the distance from the fulcrum to one end of the weight plate 52 is 1:5, the connecting rod 53 can move up and down through the lever scale assembly 5, and the pressure head 4 is arranged at the bottom of the connecting rod 53.
The bottom edge of pressure head 4 is equipped with the fillet, and fillet radius is 13.5mm, and the gauge head of amesdial 6 links to each other with connecting rod 53 top to the displacement distance of measuring connecting rod 53 that can be real-time accurate.
The rocker arm lifting component 3 is composed of a turntable 31, a worm wheel and a worm 32 in the turntable, the rocker arm lifting component 3 can drive the worm wheel and the worm 32 to move up and down through the rotation of the turntable 31, and the top end of the worm 32 is abutted to the bottom of the cross rod 51 close to the weight plate 52.
The sample lifting platform 2 comprises a platform surface 21 and a threaded support column 22 positioned below the platform surface 21, a threaded hole matched with the threaded support column 22 is formed in the lower half part 12, and the sample lifting platform 2 is lifted through rotation of the threaded support column 22.
The upper half 11 is frame-type and penetrates forwards and backwards, and the connecting rod 53 penetrates through the bottom of the upper half 11 and is coaxially arranged with the threaded supporting column 22.
The connecting rod 53 passes through a section of the bottom of the upper half 11 and the diameter of the connecting rod 53 near the pressure head 4 is larger than the diameter of the perforation hole, thereby limiting the displacement stroke of the connecting rod 53.
The rocker arm lifting assembly 3 is arranged on the supporting part 13, the supporting part 13 is a hollow cylinder, the turntable 31 is arranged on the outer side of the supporting part 13, a through hole is formed in the joint of the supporting part 13 and the turntable 31, the back of the turntable 31 penetrates through the through hole to be fixedly connected with a worm wheel, and the worm 32 is vertically arranged in the supporting part 13 and forms a worm and gear mechanism with the worm wheel.
For the convenience of adjustment, a handle 311 is provided on the turntable 31 near the edge.
The weight of the weight 8 is 2kg, the handle 81 is arranged on the side surface of the weight 8, and the gap is arranged on the weight 8, so that the weight can be conveniently placed.
When the indentation hardness test device is used, the sample lifting platform 2 is firstly rotated to a designated position, then a sample with the thickness of 2.2cm is placed on the table board 21, the pressure head 4 is contacted with the sample through the rocker arm lifting assembly 3, then the stopwatch 7 is pressed to start timing when the worm 32 is separated from the cross rod 51, when 1min is reached, the weight 8 is placed on the weight disc 52, the reading h1 of the dial indicator 6 at the moment is recorded, when 4min is reached, the reading h2 of the dial indicator 6 at the moment is recorded, and the front and rear readings are substituted into a calculation formula so as to obtain whether the capability of detecting the deformation resistance of the sample is qualified.
It should be understood that the above-described embodiments are merely examples provided for clearly illustrating the embodiments of the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. This need not be, nor should it be exhaustive of all embodiments. And obvious changes and modifications falling within the spirit of the invention are within the scope of the invention.
Claims (10)
1. The press-in hardness test device is characterized by comprising a support (1), a sample lifting platform (2), a rocker arm lifting assembly (3), a pressure head (4), a lever scale assembly (5), a dial indicator (6), a stopwatch (7) and a weight (8), wherein the sample lifting platform (2), the rocker arm lifting assembly (3), the lever scale assembly (5), the dial indicator (6) and the stopwatch (7) are all arranged on the support (1);
the lever scale assembly (5) comprises a cross rod (51), a weight plate (52) and a connecting rod (53), one end of the cross rod (51) is rotatably connected with the support (1) to form a fulcrum, the weight plate (52) is arranged at the other end of the cross rod (51) in a hanging mode, a weight (8) is arranged on the weight plate (52) when the lever scale assembly is used, the connecting rod (53) is vertically arranged and penetrates through the support (1), the connecting rod (53) is hinged to the cross rod (51), the bottom of the connecting rod (53) is fixedly connected with the pressure head (4), a measuring head of the dial indicator (6) is connected with the top of the connecting rod (53), and the sample lifting platform (2) is located below the pressure head (4);
rocker arm lifting unit (3) are including carousel (31), worm wheel and worm (32), carousel (31) and worm wheel coaxial link to each other, worm wheel and worm (32) intermeshing form worm gear mechanism, the bottom in horizontal pole (51) is supported in the vertical setting of worm (32) and top.
2. The press-in hardness test apparatus according to claim 1, characterized in that: the support (1) is divided into an upper half part (11) and a lower half part (12), wherein the upper half part (11) and the lower half part (12) are arranged at intervals and are connected into a whole through a supporting part (13) arranged at the same side end part of the upper half part (11) and the lower half part (12).
3. The press-in hardness test apparatus according to claim 2, characterized in that: sample elevating platform (2) include mesa (21) and be located the screw thread support column (22) of mesa (21) below, be equipped with on lower half (12) with screw thread support column (22) complex screw hole, sample elevating platform (2) realize going up and down through the rotation of screw thread support column (22).
4. The indentation hardness test apparatus according to claim 3, wherein: the upper half part (11) penetrates through the upper half part in a frame-type front-back mode, and the connecting rod (53) penetrates through the bottom of the upper half part (11) and is arranged coaxially with the threaded supporting column (22).
5. The press-in hardness test apparatus according to claim 4, wherein: the diameter of the part of the connecting rod (53) below the upper half part (11) is larger than the diameter of the hole penetrating through the upper half part (11).
6. The indentation hardness test apparatus according to claim 2, wherein: rocker arm lifting unit (3) are located on supporting part (13), supporting part (13) are hollow cylinder, the outside of supporting part (13) is located in carousel (31) are through passing the fixed axle that supporting part (13) and the coaxial continuous with the worm wheel, worm (32) vertical setting is in supporting part (13).
7. The indentation hardness test apparatus according to claim 6, wherein: a grab handle (311) vertical to the rotary disc (31) is arranged on the edge of the rotary disc (31).
8. The press-in hardness test apparatus according to claim 1, characterized in that: the weight of the weight (8) is 2kg, a handle (81) is arranged on the side surface of the weight (8), and a gap is formed in the weight (8).
9. The press-in hardness test device according to any one of claims 1 to 8, characterized in that: the ratio of the distance from the fulcrum to the hinge part of the connecting rod (53) to the distance from the fulcrum to the hanging part of the weight plate (52) is 1: 5.
10. The press-in hardness test device according to any one of claims 1 to 8, characterized in that: the pressure head (4) is cylindrical, the bottom end edge of the pressure head (4) is provided with a fillet, and the radius of the fillet is 10-15 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220050605.1U CN217237597U (en) | 2022-01-10 | 2022-01-10 | Press-in hardness test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220050605.1U CN217237597U (en) | 2022-01-10 | 2022-01-10 | Press-in hardness test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217237597U true CN217237597U (en) | 2022-08-19 |
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ID=82829205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220050605.1U Active CN217237597U (en) | 2022-01-10 | 2022-01-10 | Press-in hardness test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217237597U (en) |
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2022
- 2022-01-10 CN CN202220050605.1U patent/CN217237597U/en active Active
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