Hardness tester for carbon steel casting

Abstract

The utility model relates to the technical field of carbon steel casting detection, in particular to a hardness tester for a carbon steel casting. According to the technical scheme, the durometer comprises a durometer shell, a transmission mechanism is installed in the durometer shell, the transmission mechanism comprises triangular supporting plates, driven wheels, a driving wheel and a transmission gear, the driving wheel is installed between the two triangular supporting plates, the driven wheels are installed at the triangular positions between the triangular supporting plates, and the transmission gear is installed on the transmission gear. The two driven wheels close to each other are meshed with the driving wheel, transmission gears matched with the driving wheel and the driven wheels far away from each other are installed between the driving wheel and the driven wheels far away from each other, the driven wheels are sleeved with cleaning belts, and a liquid storage box is installed in the sclerometer shell. After cleaning liquid is poured into the liquid storage box, oil stains, sundries and dust on the surface of the carbon steel casting are cleaned through the cleaning belt under the driving of the motor on the transmission mechanism, and the cleanliness of the surface of the carbon steel casting is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of carbon steel casting detection, in particular to a hardness tester for carbon steel castings. Background Art

[0002] Carbon steel castings have the advantages of good processing performance, high toughness, high strength, good wear resistance, good castability, insensitivity to notches, and low price. They are often used to manufacture various mechanical parts that are not subjected to much force but require high toughness. Carbon steel castings are important industrial materials, and their hardness is an important parameter to measure their quality. Therefore, the hardness needs to be tested. Most of the existing hardness testers are based on the indentation method, such as Brinell hardness tester, Rockwell hardness tester, etc. However, in actual use, it is easy to have oil stains and debris on the surface of carbon steel castings, resulting in inaccurate measurement results. Therefore, it is necessary to design a hardness tester for carbon steel castings. Utility Model Content

[0003] The purpose of the utility model is to provide a hardness tester for carbon steel castings to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hardness tester for carbon steel castings, comprising a hardness tester housing, a transmission mechanism installed inside the hardness tester housing, the transmission mechanism comprising a triangular support plate, a driven wheel, a driving wheel and a transmission gear, a driving wheel installed between two triangular support plates, driven wheels are installed at the triangles between the triangular support plates, two driven wheels that are close to each other are meshed with the driving wheel, a matching transmission gear is installed between the driving wheel and the driven wheel that is far away, a cleaning belt is provided on the outer sleeve of the driven wheel, and a liquid storage box is installed inside the hardness tester housing;

[0005] One end of the transmission mechanism is connected to a roller shaft, the outer periphery of the roller shaft is provided with a water absorbent belt, an electric heating plate is installed inside the hardness tester shell at the top of the water absorbent belt, an air outlet window is opened on one side of the hardness tester shell, a workbench is installed on the top of the hardness tester shell, and a pressure head is installed at the bottom of the hardness tester shell at the upper end of the workbench.

[0006] Preferably, the driven wheel, the driving wheel and the transmission gear are rotationally connected to the triangular support plate, the transmission gear is meshed with the driven wheel and the driving wheel, and a through hole compatible with the transmission mechanism and the roller shaft is opened on the side of the hardness tester housing.

[0007] Preferably, the transmission mechanism further comprises a motor, and the other end of the triangular support plate is equipped with a motor, and the output end of the motor is connected to the driving wheel.

[0008] Preferably, the lowest part of the vertical surface of the triangular support plate is inserted into the interior of the liquid storage box, and a wiper plate is installed on the top of the liquid storage box.

[0009] Preferably, the other end of the roller shaft is connected to the driven wheel, and one end of the roller shaft is mounted with an auxiliary frame via a bearing.

[0010] Preferably, a needle indicator is installed on the upper end of the side of the hardness tester housing, and a fan is installed on one side of the electric heating plate.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. After pouring the cleaning liquid into the liquid storage box, the cleaning belt is used to clean the oil stains, debris and dust on the surface of the carbon steel casting under the drive of the motor on the transmission mechanism to improve the cleanliness of the surface of the carbon steel casting.

[0013] 2. By installing the water-absorbing belt and the heating plate, when in use, the roller is driven by the driven wheel to wipe the surface of the carbon steel casting with the water-absorbing belt to reduce the residual water stains on the surface of the carbon steel casting. After the electric heating plate is powered on, the hot air is discharged from the air outlet window under the action of the fan, and the carbon steel casting wiped by the water-absorbing belt is dried to keep the carbon steel casting dry and clean. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the utility model;

[0015] Figure 2 It is a partial cross-sectional view of the housing of the hardness tester of the utility model;

[0016] Figure 3 It is a structural schematic diagram of the transmission mechanism and the water absorption belt of the utility model;

[0017] Figure 4 It is a partial structural schematic diagram of the transmission mechanism of the utility model;

[0018] Figure 5 It is a structural schematic diagram of the transmission mechanism and roller shaft of the utility model.

[0019] In the figure: 1. hardness tester housing; 2. air outlet window; 3. water absorption belt; 4. cleaning belt; 5. fan; 6. electric heating plate; 7. liquid storage box; 8. transmission mechanism; 801. triangular support plate; 802. driven wheel; 803. motor; 804. driving wheel; 805. transmission gear; 9. roller; 10. auxiliary frame; 11. wiper; 12. needle indicator; 13. pressure head; 14. workbench. DETAILED DESCRIPTION

[0020] It is easy to understand that according to the technical solution of the utility model, without changing the essential spirit of the utility model, a person skilled in the art can propose a variety of interchangeable structural modes and implementation modes. Therefore, the following specific implementation modes and drawings are only exemplary descriptions of the technical solution of the utility model, and should not be regarded as the entirety of the utility model or as a limitation or restriction to the technical solution of the utility model.

[0021] The utility model provides a hardness tester for carbon steel castings, for example, Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, it includes a hardness tester housing 1, and a transmission mechanism 8 is installed inside the hardness tester housing 1. The transmission mechanism 8 includes a triangular support plate 801, a driven wheel 802, a driving wheel 804 and a transmission gear 805. The driving wheel 804 is installed between the two triangular support plates 801, and the triangular parts between the triangular support plates 801 are all equipped with driven wheels 802. The two driven wheels 802 that are close to each other are meshed with the driving wheel 804. A matching transmission gear 805 is installed between the driving wheel 804 and the driven wheel 802 that is far away. Among them, the driven wheel 802, the driving wheel 804 and the transmission gear 805 are connected to the triangular support plates 801. The angle support plates 801 are connected in rotation, and the two transmission gears 805 are meshed with the driven wheel 802 and the driving wheel 804 respectively. The side of the hardness tester housing 1 is provided with a through hole adapted to the transmission mechanism 8 and the roller shaft 9; the transmission mechanism 8 also includes a motor 803, and the other end of the triangular support plate 801 is equipped with the motor 803, and the output end of the motor 803 is connected to the driving wheel 804; the outer periphery of the driven wheel 802 is provided with a cleaning belt 4, and the interior of the hardness tester housing 1 is provided with a liquid storage box 7; the lowest part of the vertical surface of the triangular support plate 801 is inserted into the interior of the liquid storage box 7, and the top of the liquid storage box 7 is provided with a wiper plate 11;

[0022] Specifically, the cleaning liquid is poured into the liquid storage box 7. After the device is connected to an external power source, the motor 803 drives the driving wheel 804 to rotate clockwise. During the rotation of the driving wheel 804, the outer gear drives the two driven wheels 802 meshing with it to rotate counterclockwise. After being transmitted by two transmission gears 805, it also drives the farther driven wheel 802 to rotate counterclockwise, so that the entire transmission mechanism 8 starts to operate. The cleaning belt 4 rotates under the drive of the driven wheel 802. When the cleaning belt 4 passes through the liquid storage box 7, it absorbs and carries the cleaning liquid, so that the dust and oil stains on the surface of the carbon steel casting that needs to be hardness tested can be wiped. The wiper 11 can be used to squeeze and intercept the cleaning liquid and stains carried by the cleaning belt 4 without affecting the rotation of the cleaning belt 4, so as to prevent the cleaning liquid from splashing under the drive of the cleaning belt 4.

[0023] like Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, one end of the transmission mechanism 8 is connected to a roller shaft 9, and the outer sleeve of the roller shaft 9 is provided with a water absorption belt 3, and an electric heating plate 6 is installed inside the hardness tester housing 1 on the top of the water absorption belt 3, and an air outlet window 2 is opened on one side of the hardness tester housing 1; wherein, the other end of the roller shaft 9 is fixedly connected to two driven wheels 802 with a higher vertical position, a fan 5 is installed on one side of the electric heating plate 6, and an auxiliary frame 10 is installed on one end of the roller shaft 9 through a bearing; specifically, when the driven wheel 802 rotates counterclockwise, it will drive the roller shaft 9 to rotate at the same time, and after the surface cleaning of the carbon steel casting is completed, it will be moved To the front of the water absorption belt 3, the water absorption belt 3 is driven by the roller 9 to wipe the surface of the carbon steel casting to reduce the water stains on the surface of the carbon steel casting. After the electric heating plate 6 is powered on, it heats the air in the surrounding environment. Under the action of the fan 5, the hot air is discharged from the air outlet window 2 to dry the carbon steel casting after being wiped by the water absorption belt 3, so that the carbon steel casting is kept dry and clean. Secondly, while heating the air, the electric heating plate 6 can also dry the water absorption belt 3 to improve the use effect of the water absorption belt 3, and the auxiliary frame 10 is used to auxiliary support the roller 9;

[0024] like Figure 1 and Figure 2 As shown, a workbench 14 is installed on the top of the hardness tester housing 1, and a pressure head 13 is installed on the bottom of the hardness tester housing 1 at the upper end of the workbench 14; a needle indicator 12 is installed on the upper end of the side of the hardness tester housing 1; specifically, the cleaned carbon steel casting is placed on the top of the workbench 14, and the workbench 14 is adjusted to a test height, and the hardness of the carbon steel casting is tested in conjunction with the pressure head 13 and the needle indicator 12.

[0025] The working principle of this embodiment is as follows: before use, the cleaning liquid is poured into the liquid storage box 7. After the device is connected to the external power supply, the motor 803 drives the driving wheel 804 to rotate clockwise. During the rotation of the driving wheel 804, the outer gear drives the two driven wheels 802 meshing with it to rotate counterclockwise, and after being transmitted by two transmission gears 805, it also drives the farther driven wheel 802 to rotate counterclockwise, so that the entire transmission mechanism 8 starts to operate. The cleaning belt 4 rotates under the drive of the driven wheel 802. When the cleaning belt 4 passes through the liquid storage box 7, it will absorb and carry the cleaning liquid, so as to achieve the surface hardness test of the carbon steel casting that needs to be tested. The dust and oil stains are wiped off. After the surface cleaning of the carbon steel casting is completed, it is moved in front of the water absorption belt 3. The water absorption belt 3 is driven by the roller 9 to wipe the surface of the carbon steel casting to reduce the residual water stains on the surface of the carbon steel casting. After the electric heating plate 6 is powered on, it heats the air of the surrounding environment. Under the action of the fan 5, the hot air is discharged from the air outlet 2. The carbon steel casting wiped by the water absorption belt 3 is dried to keep the carbon steel casting dry and clean. The cleaned carbon steel casting is placed on the top of the workbench 14, and the workbench 14 is adjusted to the test height. The hardness of the carbon steel casting is tested with the pressure head 13 and the needle indicator 12.

[0026] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. A hardness tester for carbon steel castings, characterized in that: The hardness tester comprises a housing (1), a transmission mechanism (8) is installed inside the housing (1), the transmission mechanism (8) comprises a triangular support plate (801), a driven wheel (802), a driving wheel (804) and a transmission gear (805), a driving wheel (804) is installed between two triangular support plates (801), driven wheels (802) are installed at the triangular parts between the triangular support plates (801), two driven wheels (802) that are close to each other are meshed with the driving wheel (804), a matching transmission gear (805) is installed between the driving wheel (804) and the driven wheel (802) that is far away, a cleaning belt (4) is provided on the outer periphery of the driven wheel (802), and a liquid storage box (7) is installed inside the housing (1); One end of the transmission mechanism (8) is connected to a roller (9), the outer periphery of the roller (9) is provided with a water absorption belt (3), an electric heating plate (6) is installed inside the hardness tester housing (1) at the top of the water absorption belt (3), an air outlet window (2) is provided on one side of the hardness tester housing (1), a workbench (14) is installed on the top of the hardness tester housing (1), and a pressure head (13) is installed at the bottom of the hardness tester housing (1) at the upper end of the workbench (14).

2. A hardness tester for carbon steel castings according to claim 1, characterized in that: The driven wheel (802), the driving wheel (804) and the transmission gear (805) are rotatably connected to the triangular support plate (801), the transmission gear (805) is meshed with the driven wheel (802) and the driving wheel (804), and a through hole adapted to the transmission mechanism (8) and the roller shaft (9) is provided on the side of the hardness tester housing (1).

3. A hardness tester for carbon steel castings according to claim 2, characterized in that: The transmission mechanism (8) further comprises a motor (803), and the other end of the triangular support plate (801) is provided with the motor (803), and the output end of the motor (803) is connected to the driving wheel (804).

4. A hardness tester for carbon steel castings according to claim 3, characterized in that: The lowest part of the vertical surface of the triangular support plate (801) is inserted into the interior of the liquid storage box (7), and a wiper plate (11) is installed on the top of the liquid storage box (7).

5. A hardness tester for carbon steel castings according to claim 1, characterized in that: The other end of the roller shaft (9) is connected to the driven wheel (802), and one end of the roller shaft (9) is mounted with an auxiliary frame (10) via a bearing.

6. A hardness tester for carbon steel castings according to any one of claims 1 to 5, characterized in that: A needle indicator (12) is installed at the upper end of the side of the hardness tester housing (1), and a fan (5) is installed on one side of the electric heating plate (6).

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