Heat treatment oil cooling performance detection device

Abstract

The utility model discloses a device for detecting the cooling performance of heat treatment oil. The device comprises a tester body; the magnetic stirrer is used for placing an oil container, and a stirrer is arranged in the oil container; the electric furnace is arranged above the magnetic stirrer; the probe penetrates through the electric furnace; and the electric push rod is used for driving the probe to move along the vertical direction. Compared with the prior art, the heat treatment oil cooling performance tester solves the problem that the heat treatment oil cooling performance test data in the existing tester is inaccurate.

Description

Technical Field

[0001] This utility model relates to the field of cooling speed tester technology, and in particular to a device for testing the cooling performance of heat treatment oil. Background Technology

[0002] Heat treatment oil is a type of processing oil with strong cooling performance and good oxidation stability. Based on its cooling performance, it can be classified into ordinary quenching oil, rapid quenching oil, and ultra-rapid quenching oil. Cooling performance is a crucial property of quenching oil, directly affecting the quality of quenched parts. Good cooling performance ensures that quenched parts have a certain hardness and a qualified metallographic structure, preventing deformation and cracking.

[0003] The cooling performance of heat treatment oil is tested using a specialized testing instrument. For example, Chinese patent CN202199361 U discloses a benchtop cooling rate meter, belonging to the fields of machinery and chemical engineering. A guide rail is provided on the probe arm, and a slider is mounted on the guide rail. The probe is connected to the probe arm, and an electric furnace is located below the probe arm, with a protective cover surrounding the furnace. A beaker is positioned directly below the furnace. A probe lifting mechanism is connected to the slider and is driven by a motor, electric cylinder, or hydraulic system. A housing is provided outside the probe lifting mechanism and drive unit, housing an electrical control box and a display.

[0004] In existing heat treatment oil cooling performance testing instruments, the heat treatment oil is placed in a container and placed under the probe. After the probe is heated, it descends and inserts into the heat treatment oil. Heat treatment oil stored for a long time is prone to uneven distribution of additives within the oil, leading to inaccurate data during cooling performance testing. Utility Model Content

[0005] The purpose of this invention is to provide a device for testing the cooling performance of heat treatment oil, so as to solve the problem of inaccurate data in the existing testing instruments for measuring the cooling performance of heat treatment oil.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a heat treatment oil cooling performance testing device, comprising:

[0007] Measuring instrument body:

[0008] A magnetic stirrer, used to hold an oil container, with a stirring bar inside the oil container;

[0009] An electric furnace, positioned above a magnetic stirrer;

[0010] The probe is inserted into the electric furnace;

[0011] An electric actuator is used to drive the probe to move vertically.

[0012] As a further description of the above technical solution:

[0013] A baffle is installed below the electric furnace, and the magnetic stirrer is located inside the baffle.

[0014] As a further description of the above technical solution:

[0015] One end of the stop rod is hinged to the inner wall of the baffle. The inner wall of the baffle is provided with a first stop block for abutting the end of the stop rod. The stop rod is provided with an arc-shaped rod body that contacts the side wall of the oil container.

[0016] As a further description of the above technical solution:

[0017] The inner wall of the baffle is also provided with a second stop block whose position corresponds to the arc-shaped rod body, and the end face of the second stop block is provided with a groove.

[0018] As a further description of the above technical solution:

[0019] The probe is equipped with a connector, which is detachably mounted on the piston rod of the electric push rod.

[0020] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0021] 1. In this utility model, when testing the cooling performance of heat-treated oil, the heat-treated oil is poured into an oil container, and then the oil container is placed on a magnetic stirrer. The magnetic stirrer is started, and the stir bar stirs the heat-treated oil in the oil container. After stirring for a set time, the heat-treated oil is stirred evenly. At the same time, the probe is heated in the electric furnace. After the probe is heated to the set temperature, it is driven down by an electric push rod and inserted into the evenly stirred heat-treated oil in the oil container. The probe can be precisely controlled by the electric push rod to control the descent distance. The cooling performance of the heat-treated oil is measured by the temperature drop rate fed back by the probe, thereby improving the accuracy of the measurement data.

[0022] 2. In this utility model, the stop bar is used to position the horizontal position of the oil container by the arc-shaped rod body when the oil container is placed on the magnetic stirrer, so that the position of the oil container is correspondingly set below the probe, so that the probe can accurately extend into the center of the oil container. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 A schematic diagram of the structure of a heat treatment oil cooling performance testing device. Figure 1 .

[0025] Figure 2 A schematic diagram of the structure of a heat treatment oil cooling performance testing device. Figure 2 .

[0026] Figure 3 A schematic diagram of the structure of a heat treatment oil cooling performance testing device. Figure 3 .

[0027] Legend:

[0028] 1. Measuring instrument body; 2. Magnetic stirrer; 3. Electric furnace; 31. Baffle; 32. Second stop block; 4. Probe; 41. Connecting seat; 42. Handle; 5. Electric push rod; 51. Piston rod; 6. Stop rod; 9. Oil container. Detailed Implementation

[0029] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0030] Example 1

[0031] Please see Figure 1-3 This utility model provides a technical solution: a device for testing the cooling performance of heat treatment oil, comprising:

[0032] Measuring instrument body 1:

[0033] A magnetic stirrer 2 is used to hold an oil container 9, and a stir bar is provided inside the oil container 9.

[0034] An electric furnace 3 is positioned above the magnetic stirrer 2;

[0035] Probe 4 is inserted into electric furnace 3;

[0036] Electric push rod 5 is used to drive probe 4 to move in the vertical direction.

[0037] The probe 4 is equipped with a connecting seat 41, which is detachably mounted on the piston rod 51 of the electric push rod 5, making it easy to disassemble and maintain the probe 4.

[0038] Working principle: When testing the cooling performance of heat-treated oil, the heat-treated oil is poured into oil container 9, and then oil container 9 is placed on magnetic stirrer 2. Magnetic stirrer 2 is started, and the stir bar stirs the heat-treated oil in oil container 9. After stirring for a set time, the heat-treated oil is stirred evenly. At the same time, probe 4 is heated in electric furnace 3. After probe 4 is heated to the set temperature, it is driven downward by electric push rod 5 to extend into the evenly stirred heat-treated oil in oil container 9. The descent distance of probe 4 can be precisely controlled by electric push rod 5. The cooling performance of heat-treated oil can be measured by the temperature drop rate fed back by probe 4, thus improving the accuracy of the test data.

[0039] Example 2

[0040] This embodiment further improves upon the above embodiment by providing the following technical solution: a baffle 31 is provided below the electric furnace 3, and the magnetic stirrer 2 is disposed inside the baffle 31. One end of the baffle rod 6 is hinged to the inner wall of the baffle 31, and a first stop block is provided on the inner wall of the baffle 31 to abut against the end of the baffle rod 6. The baffle rod 6 is provided with an arc-shaped rod body portion, which contacts the side wall of the oil container 9.

[0041] The stop bar 6 is used to position the oil container 9 horizontally by means of the arc-shaped rod body when the oil container 9 is placed on the magnetic stirrer 2, so that the position of the oil container 9 is correspondingly set below the probe 4, so that the probe 4 can accurately extend into the center of the oil container 9.

[0042] When removing the oil container 9, the stop lever 6 can be rotated. The end of the stop lever 6 disengages from the first stop block, and the stop lever presses against the oil container 9, causing the oil container 9 to move and become misaligned with the magnetic stirrer 2, making it easier to remove the oil container 9.

[0043] Example 3

[0044] Based on the above embodiments, this embodiment further improves upon the following technical solution: a second stop block 32 corresponding to the arc-shaped rod body is provided on the inner wall of the cover 31, and a groove is provided on the end face of the second stop block 32.

[0045] The second stop 32 is used to position and support the middle part of the stop rod 6. It works with the first stop to support the stop rod 6 and prevent the stop rod 6 from being squeezed backward by the oil container 9. The groove on the end face of the second stop 32 fully positions the arc-shaped rod part of the stop rod 6.

[0046] Example 4

[0047] Based on the above embodiments, this embodiment further improves upon the following technical solution: a handle 42 is provided on the connecting seat 41 to facilitate manual operation of the probe 4 and to facilitate the removal and placement of the probe 4 when disassembling and maintaining it.

[0048] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A device for testing the cooling performance of heat treatment oil, characterized in that, include: Measuring instrument body: A magnetic stirrer for holding an oil container, wherein the oil container is equipped with a stir bar; An electric furnace is positioned above the magnetic stirrer; A probe, which is inserted into the electric furnace; An electric actuator is used to drive the probe to move vertically.

2. The heat treatment oil cooling performance testing device according to claim 1, characterized in that, A baffle is provided below the electric furnace, and the magnetic stirrer is located inside the baffle.

3. The heat treatment oil cooling performance testing device according to claim 2, characterized in that, One end of the stop rod is hinged to the inner wall of the baffle. The inner wall of the baffle is provided with a first stop block for abutting the end of the stop rod. The stop rod is provided with an arc-shaped rod body portion, which contacts the side wall of the oil container.

4. The heat treatment oil cooling performance testing device according to claim 3, characterized in that, The inner wall of the baffle is also provided with a second stop block whose position corresponds to the arc-shaped rod body, and the end face of the second stop block is provided with a groove.

5. The heat treatment oil cooling performance testing device according to claim 1, characterized in that, The probe is equipped with a connecting seat, which is detachably mounted on the piston rod of the electric push rod.

6. The heat treatment oil cooling performance testing device according to claim 5, characterized in that, The connector is equipped with a handle.

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