Hardness measuring device for engine lever production
By designing a hardness measuring device driven by a motor and an electric cylinder, the problems of cumbersome replacement of worn indenters and non-level devices were solved, thus achieving convenient replacement of indenters and improved measurement accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHAANXI CHAOLIANG MECHANICAL ELECTRICAL APPLIANCE CO LTD
- Filing Date
- 2025-04-27
- Publication Date
- 2026-05-19
AI Technical Summary
Existing lever hardness measuring devices suffer from cumbersome indenter replacement due to wear and inability to maintain a horizontal position, leading to measurement errors.
A hardness measuring device is designed, comprising a base, a vertical plate, a rotating plate, a base plate, a platform, a support plate, a mounting plate, and an indenter body. The rotating plate and platform are driven by a motor and an electric cylinder to adjust their level. Combined with a level instrument for calibration, the device enables portable replacement of the indenter and maintains the device's level.
This technology facilitates the replacement of worn pressure heads and improves measurement accuracy, thereby reducing measurement errors.
Smart Images

Figure CN224262919U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hardness measurement technology, specifically a hardness measuring device used in the production of engine levers. Background Technology
[0002] Hardness is one of the important indicators of a material's mechanical properties, and hardness testing is a crucial means of judging the quality of metallic materials or parts. Because the hardness of a metal corresponds to other mechanical properties, most metallic materials can have their other mechanical properties, such as strength, fatigue, creep, and wear, approximated by measuring their hardness. The essence of hardness is a material's ability to resist indentation by another harder material. Hardness testing is the fastest, most economical, and simplest testing method for evaluating the mechanical properties of metals. The main purpose of hardness testing is to determine the suitability of a material, or the effectiveness of special hardening or softening treatments applied to the material for its intended use.
[0003] Existing lever hardness measuring devices typically have indenters that are either fixedly installed or complexly detachable. When these indenters wear out or deform after long-term use and need to be replaced, the process is quite cumbersome. Furthermore, the devices lack a fixed level, making it impossible to ensure that the hardness measuring device is in a horizontal position during operation, which leads to measurement errors. To address these issues, the inventors propose a hardness measuring device for engine lever production to solve these problems. Utility Model Content
[0004] To address the cumbersome process of replacing worn indenters and the inability to ensure the hardness measuring device is horizontal during operation, leading to measurement errors, this invention aims to provide a hardness measuring device for engine lever production.
[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a hardness measuring device for engine lever production, comprising a base, wherein vertical plates are symmetrically fixedly connected to the top of the base near the center of both sides, a rotating plate is rotatably connected between the two vertical plates, a base plate is fixedly connected to the top of the rotating plate, a vertical plate is symmetrically fixedly connected to the top of the base plate near the center of both sides, a rotating plate is rotatably connected between the two vertical plates, a base platform is fixedly connected to the top of the rotating plate, a support plate is provided at the center of the upper part of the base platform, a mounting plate is provided at the center of the bottom end of the support plate, a pressure head body is fixedly connected to the bottom end of the mounting plate, and a lead screw is symmetrically fixedly connected to the top of the mounting plate near the center.
[0006] Preferably, a motor is fixedly connected to one side of one of the vertical plates, and the output end of the motor is fixedly connected to the rotating plate through the vertical plate. A motor is fixedly connected to the other side of one of the vertical plates, and the output end of the motor is fixedly connected to the rotating plate through the vertical plate.
[0007] Preferably, two levels are fixedly connected to the top of the base near the corner, and the two levels are arranged in an L-shape. An L-shaped plate is fixedly connected to the center of the back end of the base, and a U-shaped plate is fixedly connected to the center of the top of the support plate.
[0008] Preferably, an electric cylinder is fixedly connected to the top of the L-shaped plate near the center, and the output end of the electric cylinder passes through the L-shaped plate and is fixedly connected to the U-shaped plate.
[0009] Preferably, the support plate has symmetrically arranged screw holes near the center, and the outer ring of the lead screw is rotatably connected to a nut.
[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0011] 1. In this utility model, by operating the electric cylinder, and then through the cooperation between the support plate, the mounting plate, the pressure head body, the lead screw, and the nut, the effect of portable replacement of the pressure head body is achieved, thereby solving the problem of the cumbersome process when the pressure head needs to be replaced due to wear.
[0012] 2. In this utility model, by running motor one and motor two, and with the cooperation between the level, rotating plate one, rotating plate two, and base, the leveling effect is achieved, thereby solving the problem that the hardness measuring device cannot be kept in a horizontal position during use, which leads to measurement errors. Attached Figure Description
[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0015] Figure 2 This is a schematic diagram of the L-shaped plate structure of this utility model.
[0016] Figure 3 This is a schematic diagram of the substrate structure of this utility model.
[0017] Figure 4This utility model Figure 2 Enlarged structural diagram at point A in the middle.
[0018] In the diagram: 1. Base; 11. Level; 12. Vertical plate one; 13. Motor one; 14. Rotating plate one; 15. Base plate; 16. Vertical plate two; 17. Motor two; 18. Rotating plate two; 2. Platform; 21. L-shaped plate; 22. Support plate; 23. Electric cylinder; 24. U-shaped plate; 25. Mounting plate; 26. Lead screw; 27. Pressure head body. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] Example: Figure 1-4 As shown, this utility model provides a technical solution: a hardness measuring device for engine lever production, including a base 1, with vertical plates 12 symmetrically fixedly connected to the top of the base 1 near the center of both sides, a rotating plate 14 rotatably connected between the two vertical plates 12, a base plate 15 fixedly connected to the top of the rotating plate 14, vertical plates 16 symmetrically fixedly connected to the top of the base plate 15 near the center of both sides, a rotating plate 18 rotatably connected between the two vertical plates 16, a base platform 2 fixedly connected to the top of the rotating plate 18, a support plate 22 provided at the center of the upper part of the base platform 2, a mounting plate 25 provided at the center of the bottom end of the support plate 22, an indenter body 27 fixedly connected to the bottom end of the mounting plate 25, and lead screws 26 symmetrically fixedly connected to the top of the mounting plate 25 near the center. This hardness measuring device is equipped with a prior art display and controller, and calculates the hardness value by measuring the indentation depth.
[0021] One of the vertical plates 12 is fixedly connected to a motor 13 on its side end, and the output end of the motor 13 passes through the vertical plate 12 and is fixedly connected to the rotating plate 14.
[0022] By adopting the above technical solution, the motor 13 is operated, thereby causing the fixedly connected rotating plate 14 to rotate. The motor 13 is set up so as to precisely control the rotation angle of the rotating plate 14.
[0023] One of the vertical plates 16 is fixedly connected to a motor 17 on its side end. The output end of the motor 17 passes through the vertical plate 16 and is fixedly connected to the rotating plate 18.
[0024] By adopting the above technical solution, the motor 17 is operated, which enables the fixedly connected rotating plate 18 to rotate under the action of the vertical plate 16.
[0025] Two levels 11 are fixedly connected to the top of the base 1 near the corner, and the two levels 11 are arranged in an L-shape.
[0026] By adopting the above technical solution, two levels 11 are set at the top of the base 1 to calibrate the levelness of the base 2 and ensure that it is in a horizontal position.
[0027] An L-shaped plate 21 is fixedly connected to the center of the back end of the base 2, and a U-shaped plate 24 is fixedly connected to the center of the top end of the support plate 22.
[0028] By adopting the above technical solution, an L-shaped plate 21 is set at the back end of the base 2 to support the installation of the electric cylinder 23.
[0029] An electric cylinder 23 is fixedly connected to the top of the L-shaped plate 21 near the center. The output end of the electric cylinder 23 passes through the L-shaped plate 21 and is fixedly connected to the U-shaped plate 24.
[0030] By adopting the above technical solution, the electric cylinder 23 is operated, thereby causing the fixedly connected U-shaped plate 24 to descend.
[0031] Screw holes are symmetrically opened inside the support plate 22 near the center.
[0032] By adopting the above technical solution, two screw holes are opened inside the support plate 22 to facilitate the insertion of two lead screws 26 inside the support plate 22.
[0033] The lead screw 26 has a nut for rotatable connection to the outer ring thread.
[0034] By adopting the above technical solution, a nut is set on the outer ring of the lead screw 26 in order to cooperate with the lead screw 26 to achieve the effect of limiting the mounting plate 25. The pressure head body 27 includes a diamond cone or a hardened steel ball.
[0035] Working principle: When using this device, first place the lever whose hardness needs to be measured at the center of the base 2, then use the limiting clamping device to limit the lever, and then run the electric cylinder 23, which causes the fixedly connected support plate 22 to drive the pressure head body 27 to descend under the action of the mounting plate 25. Then the measurement value is displayed on the screen. When the pressure head body 27 needs to be replaced after long-term use, it can be removed from the support plate 22 by removing the nuts on the two lead screws 26. Then place the new pressure head body 27 and mounting plate 25 under the support plate 22 and install it with the nuts. This achieves the effect of portable replacement of the pressure head body 27, thus solving the problem of the cumbersome process of replacing the pressure head when it is worn.
[0036] Before measurement, the equipment needs to be leveled. Two levels 11 are used to observe the level of the equipment. The rotating plate 14, which is fixedly connected, is driven by the running motor 13 to adjust the horizontal angle of the base 2. The rotating plate 18, which is fixedly connected, is driven by the running motor 17 to adjust the vertical angle of the base 2. This achieves the effect of leveling the equipment and solves the problem that the hardness measuring device cannot be kept in a horizontal position during use, which leads to measurement errors.
[0037] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.
Claims
1. A hardness measuring device for use in the production of engine levers, comprising a base (1), characterized in that: The base (1) has vertical plates 1 (12) fixedly connected symmetrically at the top of the base (1) near the center of both sides. A rotating plate 1 (14) is rotatably connected between the two vertical plates 1 (12). A base plate (15) is fixedly connected to the top of the rotating plate 1 (14). A vertical plate 2 (16) is fixedly connected symmetrically at the top of the base plate (15) near the center of both sides. A rotating plate 2 (18) is rotatably connected between the two vertical plates 2 (16). A base platform (2) is fixedly connected to the top of the rotating plate 2 (18). A support plate (22) is provided at the center of the top of the base platform (2). An installation plate (25) is provided at the center of the bottom end of the support plate (22). A pressure head body (27) is fixedly connected to the bottom end of the installation plate (25). A lead screw (26) is symmetrically fixedly connected to the top of the installation plate (25) near the center.
2. The hardness measuring device for engine lever production as described in claim 1, characterized in that, One of the vertical plates (12) is fixedly connected to a motor (13) at one side end, and the output end of the motor (13) passes through the vertical plate (12) and is fixedly connected to the rotating plate (14).
3. The hardness measuring device for engine lever production as described in claim 1, characterized in that, One of the vertical plates (16) is fixedly connected to a motor (17) on its side end. The output end of the motor (17) passes through the vertical plate (16) and is fixedly connected to the rotating plate (18).
4. The hardness measuring device for engine lever production as described in claim 1, characterized in that, Two levels (11) are fixedly connected to the top of the base (1) near the corner, and the two levels (11) are arranged in an L-shape.
5. The hardness measuring device for engine lever production as described in claim 1, characterized in that, An L-shaped plate (21) is fixedly connected to the center of the back end of the base (2), and a U-shaped plate (24) is fixedly connected to the center of the top end of the support plate (22).
6. The hardness measuring device for engine lever production as described in claim 5, characterized in that, An electric cylinder (23) is fixedly connected to the top of the L-shaped plate (21) near the center. The output end of the electric cylinder (23) passes through the L-shaped plate (21) and is fixedly connected to the U-shaped plate (24).
7. The hardness measuring device for engine lever production as described in claim 1, characterized in that, The support plate (22) has symmetrical screw holes near the center inside.
8. The hardness measuring device for engine lever production as described in claim 1, characterized in that, The lead screw (26) is rotatably connected to a nut via its outer thread.