Vacuum quenching oil adding device

By introducing a filtration mechanism and a temperature control system into the vacuum quenching device, the problems of impurities and temperature fluctuations were solved, thereby improving the quenching quality and cooling effect of the workpiece.

CN224325360UActive Publication Date: 2026-06-05JIANGSU FENGDONG HEAT TREATMENT & SURFACE MODIFICATION ENG & TECH RES CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU FENGDONG HEAT TREATMENT & SURFACE MODIFICATION ENG & TECH RES CO LTD
Filing Date
2025-09-05
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Existing vacuum quenching equipment lacks a filtration mechanism, which cannot effectively remove impurities and aging products, and cannot regulate the temperature of the quenching oil, affecting the quality of the workpiece and the cooling effect.

Method used

A vacuum quenching oil adding device with a filtration mechanism was designed, including a filter bag, a temperature sensor, and a heating plate, for removing impurities and regulating the temperature of the quenching oil.

Benefits of technology

It effectively removes impurities, ensuring the purity of the quenching oil and improving workpiece quality; it also enables precise control of the quenching oil temperature, ensuring stable cooling capacity and improving the quenching effect.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224325360U_ABST
    Figure CN224325360U_ABST
Patent Text Reader

Abstract

The application provides a vacuum quenching oil adding device, which comprises a quenching box, a mounting rack is fixedly installed on one side surface of the quenching box, an oil storage tank is fixedly installed on the upper side of the mounting rack, an oil pump is fixedly installed on the upper surface of the fixed plate, an oil extraction pipe and an oil delivery pipe are connected to the two side surfaces of the oil pump respectively, the other end of the oil delivery pipe extends to the inside of the quenching box, and a filtering mechanism is arranged in the middle of the oil delivery pipe. Through the use of the filtering mechanism, the hidden impurities and the aging products insoluble in the oil in the vacuum quenching oil can be effectively removed. In the process that the oil pump extracts the oil in the oil storage tank and delivers the oil to the quenching box, the oil will first pass through the filtering mechanism, and the filtering screen in the filtering mechanism can intercept the impurities. In this way, the impurities are prevented from entering the quenching link with the oil, the quenching quality of the workpiece is effectively improved, the problems such as surface defects of the workpiece caused by impurities are reduced, and the stability of the product performance is ensured.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of quenching processing, and more specifically, to a vacuum quenching oil adding device. Background Technology

[0002] In quenching processes, vacuum quenching offers significant advantages. Operating in a vacuum environment reduces workpiece oxidation and decarburization, minimizes deformation, ensures dimensional accuracy, and improves surface and mechanical properties, leading to its increasingly widespread application. Vacuum quenching oil, as a key medium, requires precise and stable addition to ensure the workpiece receives the appropriate cooling rate, meeting the stringent quality and performance requirements of various products.

[0003] A prior art patent with publication number CN216192519U discloses a vacuum quenching oil adding device, including a quenching tank. A support frame is fixed to the top of the quenching tank, and a liquid storage tank is fixed to the top of the support frame. An inlet pipe is provided at the top of the liquid storage tank, and an outlet pipe is provided at the bottom of the liquid storage tank. The bottom end of the outlet pipe extends into the interior of the quenching tank and is equipped with a nozzle. A flow guiding mechanism is provided inside the liquid storage tank. Two rotating shafts are rotatably connected to one side wall of the quenching tank. A spiral fan blade is fixed to one end of each rotating shaft. Two meshing gears are rotatably connected to one side outer wall of the quenching tank. The two gears are coaxially arranged with the two spiral fan blades. A drive motor is installed at the bottom of the quenching tank, and the output shaft of the drive motor is fixed to one of the rotating shafts through a coupling.

[0004] The aforementioned patent document discloses a vacuum quenching oil adding device, which can solve the problems of slow cooling speed and low working efficiency of traditional vacuum quenching devices, as well as the accumulation and precipitation of aging products insoluble in oil in the quenching solvent on the workpiece, affecting the quenching quality. However, it has the following shortcomings:

[0005] When the above-mentioned patented device is in use, it does not have a filtration mechanism and cannot effectively remove impurities that may exist in the vacuum quenching oil, as well as aging products that are insoluble in the oil. If these impurities enter the quenching process with the oil, they will affect the quenching quality of the workpiece.

[0006] Furthermore, the temperature of the quenching oil cannot be adjusted in the aforementioned patented device. During the addition process, the oil temperature may fluctuate due to changes in ambient temperature. If the oil temperature is too high, it will reduce the cooling capacity of the oil, resulting in insufficient quenching hardness of the workpiece. If the oil temperature is too low, it will increase the viscosity of the oil, reduce its fluidity, and affect the uniformity of addition and the quenching quality of the workpiece.

[0007] Therefore, we have made improvements to this by proposing a vacuum quenching oil adding device. Utility Model Content

[0008] To address the shortcomings of existing technologies, this invention provides a vacuum quenching oil adding device, which solves the problems mentioned in the background art.

[0009] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0010] A vacuum quenching oil adding device is used to solve the above problems.

[0011] The application is as follows:

[0012] The device includes a quenching box, on one side of which a mounting bracket is fixedly installed, and on the upper side of the mounting bracket an oil storage tank is fixedly installed. On one side of the oil storage tank a fixing plate is fixedly installed, and on the upper surface of the fixing plate an oil pump is fixedly installed. On both sides of the oil pump, an oil suction pipe and an oil delivery pipe are respectively connected, and the other end of the oil suction pipe extends into the interior of the oil storage tank. The other end of the oil delivery pipe extends into the interior of the quenching box, and a filter mechanism is provided in the middle of the oil delivery pipe.

[0013] The filtration mechanism includes a fixed cylinder and a mounting cover. The lower surface of the fixed cylinder and the upper surface of the mounting cover are respectively connected to both ends of the oil pipeline. A connector is installed on the upper surface of the fixed cylinder, and a mounting piece is fixedly connected to the lower surface of the mounting cover. The connector and the mounting piece are engaged. A connecting ring is provided inside the fixed cylinder, and a filter screen is fixedly installed inside the connecting ring.

[0014] As a preferred technical solution of this application, a fixing ring is fixedly installed on the inner wall of the fixing cylinder, and a connecting ring is disposed on the upper side of the fixing ring.

[0015] As a preferred technical solution of this application, a pressure ring is fixedly installed on the inner wall of the mounting component, and the pressure ring squeezes the connecting ring.

[0016] As a preferred technical solution of this application, the mounting component has mounting grooves on all four sides, and a locking block is slidably connected inside the mounting groove. The connector has locking slots on all four sides, and the locking block engages with the locking slot.

[0017] As a preferred technical solution of this application, a baffle is slidably connected inside the mounting groove, and the locking block is fixedly connected to the baffle. A spring is fixedly installed between the baffle and the inner wall of the mounting groove.

[0018] As a preferred technical solution of this application, heating plates are installed on the inner wall surface of the oil storage tank, and a temperature sensor is fixedly installed on the surface of one side of the heating plate.

[0019] As a preferred technical solution of this application, an insulation board is fixedly connected to the outer surface of the oil storage tank, and the insulation board is made of glass wool.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] In the scheme of this application:

[0022] 1. The use of a filtration mechanism effectively removes impurities and insoluble aging products from the vacuum quenching oil. During the process of the oil pump drawing oil from the storage tank and delivering it to the quenching chamber, the oil first passes through the filtration mechanism, where the filter screen intercepts impurities. This prevents impurities from entering the quenching process with the oil, effectively improving the quenching quality of the workpiece, reducing surface defects caused by impurities, and ensuring the stability of product performance.

[0023] 2. By incorporating a heating plate and a temperature sensor, precise adjustment and stable control of the quenching oil temperature are achieved. The heating plate heats the oil in the storage tank according to actual needs, while the temperature sensor monitors the oil temperature in real time and provides feedback. When the oil temperature fluctuates due to environmental factors, the heating power can be adjusted promptly to ensure the oil temperature remains within a suitable range. This guarantees stable oil cooling capacity, preventing insufficient quenching hardness or poor fluidity of the workpiece due to oil temperature issues, thus affecting the uniformity of quenching and improving the overall quenching effect. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0025] Figure 2 This is a three-dimensional structural diagram of the filtration mechanism of this utility model;

[0026] Figure 3 This is a cross-sectional structural diagram of the filtration mechanism of this utility model;

[0027] Figure 4 This utility model Figure 3 Enlarged structural diagram of section A in the middle;

[0028] Figure 5 This utility model Figure 3 Enlarged structural diagram of section B in the middle;

[0029] Figure 6 This is a schematic diagram of the cross-sectional structure of the oil storage tank of this utility model.

[0030] The image shows:

[0031] 1. Quenching box; 2. Mounting bracket; 3. Oil storage tank; 4. Fixing plate; 5. Oil pump; 6. Oil extraction pipe; 7. Oil delivery pipe; 8. Filtering mechanism; 801. Fixing cylinder; 802. Mounting cover; 803. Connecting piece; 804. Mounting piece; 805. Connecting ring; 806. Filter screen; 807. Fixing ring; 808. Pressure ring; 809. Mounting groove; 810. Locking block; 811. Locking groove; 812. Baffle plate; 813. Spring; 9. Heating plate; 10. Temperature sensor; 11. Insulation plate. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described examples are only some embodiments of this utility model, and not all embodiments.

[0033] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0034] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0035] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0036] In the description of this utility model, it should be noted that the terms "upper" and "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. These terms are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first" and "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0037] To address the technical problems in the background section, the following vacuum quenching oil adding device is provided:

[0038] Combination Figure 1 - Figure 6As shown, the present invention provides a vacuum quenching oil adding device, including a quenching box 1. A mounting bracket 2 is fixedly installed on one side surface of the quenching box 1, and an oil storage tank 3 is fixedly installed on the upper side of the mounting bracket 2. A fixing plate 4 is fixedly installed on one side surface of the oil storage tank 3, and an oil pump 5 is fixedly installed on the upper surface of the fixing plate 4. An oil suction pipe 6 and an oil delivery pipe 7 are respectively connected to the two sides of the oil pump 5. The other end of the oil suction pipe 6 extends into the interior of the oil storage tank 3, and the other end of the oil delivery pipe 7 extends into the interior of the quenching box 1. The unit is equipped with a filter mechanism 8; the filter mechanism 8 includes a fixed cylinder 801 and a mounting cover 802, and the lower surface of the fixed cylinder 801 and the upper surface of the mounting cover 802 are respectively connected to both ends of the oil pipe 7. A connector 803 is installed on the upper surface of the fixed cylinder 801, and a mounting part 804 is fixedly connected to the lower surface of the mounting cover 802. The connector 803 and the mounting part 804 are engaged. A connecting ring 805 is provided inside the fixed cylinder 801, and a filter screen bag 806 is fixedly installed inside the connecting ring 805.

[0039] In this embodiment: an oil storage tank 3 is securely mounted on one side of the quenching chamber 1 via a mounting bracket 2, providing space for oil storage. An oil pump 5 is installed on a fixing plate 4, drawing oil from the storage tank 3 via an oil extraction pipe 6, and then transporting it to the quenching chamber 1 via an oil delivery pipe 7. A filter mechanism 8 is installed in the middle of the oil delivery pipe 7, consisting of a fixed cylinder 801 and a mounting cover 802 connected by a snap-fit ​​mechanism. The filter screen 806 on the internal connecting ring 805 effectively intercepts impurities in the oil, ensuring the purity of the quenching oil and improving the quenching quality of the workpiece.

[0040] In a preferred embodiment, a fixing ring 807 is fixedly installed on the inner wall of the fixing cylinder 801, and a connecting ring 805 is disposed on the upper side of the fixing ring 807.

[0041] In this embodiment, the fixing ring 807 is securely installed on the inner wall of the fixing cylinder 801, providing reliable support and positioning for the connecting ring 805. It can effectively withstand the impact force generated when the quenching oil flows, ensuring the continuous and stable operation of the filtration process. Moreover, it facilitates subsequent cleaning or replacement of the filter screen 806, greatly improving the practicality and maintenance convenience of the entire device.

[0042] In a preferred embodiment, a pressure ring 808 is fixedly installed on the inner wall of the mounting member 804, and the pressure ring 808 compresses the connecting ring 805.

[0043] In this embodiment: when the mounting part 804 is connected to the connecting part 803, the pressure ring 808 on the inner wall of the mounting part 804 will be inserted into the fixed cylinder 801 and apply appropriate compression to the connecting ring 805 located on the upper side of the fixed ring 807, thereby fixing the connecting ring 805 and the filter screen 806 to prevent shaking or displacement due to oil impact during the quenching oil transportation process, which would affect the filtration of the quenching oil.

[0044] In a preferred embodiment, mounting grooves 809 are provided on all four sides of the mounting member 804, and a locking block 810 is slidably connected inside the mounting groove 809. The locking slots 811 are provided on all four sides of the connector 803, and the locking block 810 is engaged with the locking slot 811.

[0045] In this embodiment: when the mounting component 804 and the connector 803 are connected, the locking block 810 will slide precisely into the locking slot 811 and complete the engagement, quickly realizing the assembly and disassembly of the two.

[0046] In a preferred embodiment, a baffle 812 is slidably connected inside the mounting groove 809, and the locking block 810 is fixedly connected to the baffle 812. A spring 813 is fixedly installed between the baffle 812 and the inner wall of the mounting groove 809.

[0047] In this embodiment: the spring force of the spring 813 can hold the baffle 812 and the surface locking block 810 in place, thus fixing the locking block 810. During installation, the locking blocks 810 around the perimeter can be pressed inward simultaneously to overcome the spring force of the spring 813. This makes it easier to insert the mounting part 804 into the connector 803. Then, the spring 813 can push the baffle 812 and the locking block 810 outward with its own elasticity, so that the locking block 810 is locked into the slot 811, completing the fixed installation. Similarly, when disassembling, the locking block 810 can be pressed inward.

[0048] In a preferred embodiment, heating plates 9 are installed on the inner wall surface of the oil tank 3, and a temperature sensor 10 is fixedly installed on the surface of one side of the heating plate 9.

[0049] In this embodiment, a heating plate 9 is installed on the inner wall surface of the oil storage tank 3, which can uniformly and effectively heat the quenching oil in the tank. The heating plate 9 can precisely control the temperature of the quenching oil according to actual needs, ensuring that it is within the optimal working temperature range, thereby improving the cooling performance and uniformity of the quenching oil during the quenching process, which helps to obtain quenched workpieces of higher quality. At the same time, a temperature sensor 10 is fixedly installed on the surface of one side of the heating plate 9, which can monitor the temperature of the quenching oil in real time and feed the data back to the control system so as to adjust the working state of the heating plate 9 in a timely manner, achieve precise temperature control, and avoid affecting the quenching effect due to excessively high or low temperatures.

[0050] As a preferred embodiment, an insulation board 11 is fixedly connected to the outer surface of the oil storage tank 3, and the insulation board 11 is made of glass wool.

[0051] In this embodiment: the insulation board 11 is made of glass wool, which has excellent thermal insulation performance. During the operation of the device, it can effectively reduce the heat loss in the oil storage tank 3 and reduce the energy consumption required by the heating plate 9 to maintain the appropriate temperature of the quenching oil, thus playing a positive role in energy saving and consumption reduction.

[0052] Specifically, the working principle of this solution is as follows:

[0053] During use, the oil pump 5 starts, drawing quenching oil from the oil storage tank 3 through the oil extraction pipe 6, and then transporting it to the quenching box 1 through the oil delivery pipe 7. The filter mechanism 8 in the middle of the oil delivery pipe 7 plays a key role. The fixing ring 807 on the inner wall of the fixing cylinder 801 provides support for the connecting ring 805, and the filter screen 806 on the connecting ring 805 intercepts impurities in the oil. During installation, the mounting part 804 is aligned with the connecting part 803, and the locking block 810 is pressed against the spring force of the spring 813, causing it to slide into the mounting groove 809. After the mounting part 804 is engaged with the connecting part 803, the spring force of the spring 813 causes the locking block 810 to engage with the slot 811, while the pressure ring 808 presses the connecting ring 805 to fix the filter screen 806.

[0054] The heating plate 9 on the inner wall of the oil tank 3 heats the quenching oil to its optimal operating temperature, improving cooling performance and uniformity. The temperature sensor 10 monitors the temperature in real time and feeds it back to the control system for precise temperature control. The glass wool insulation board 11 on the outer surface of the oil tank 3 reduces heat loss, lowers energy consumption, and ensures stable operation of the device, thereby providing high-quality, stable, and pure quenching oil for the quenching process and improving the quenching quality of the workpiece.

[0055] The above is the entire working process of the device, and all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0056] The above embodiments are only used to illustrate the present utility model and are not intended to limit the technical solutions described in the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, the present utility model is not limited to the specific embodiments described above. Therefore, any modifications or equivalent substitutions to the present utility model, and all technical solutions and improvements that do not depart from the spirit and scope of the utility model, are covered within the scope of the claims of the present utility model.

Claims

1. A vacuum quenching oil adding device, comprising a quenching box (1), characterized in that: A mounting bracket (2) is fixedly installed on one side surface of the quenching box (1), and an oil storage tank (3) is fixedly installed on the upper side of the mounting bracket (2). A fixing plate (4) is fixedly installed on one side surface of the oil storage tank (3), and an oil pump (5) is fixedly installed on the upper surface of the fixing plate (4). An oil suction pipe (6) and an oil delivery pipe (7) are respectively connected to the two sides of the oil pump (5). The other end of the oil suction pipe (6) extends into the interior of the oil storage tank (3), and the other end of the oil delivery pipe (7) extends into the interior of the quenching box (1). A filter mechanism (8) is provided in the middle of the oil delivery pipe (7). The filtration mechanism (8) includes a fixed cylinder (801) and a mounting cover (802). The lower surface of the fixed cylinder (801) and the upper surface of the mounting cover (802) are respectively connected to both ends of the oil pipe (7). A connector (803) is installed on the upper surface of the fixed cylinder (801), and a mounting piece (804) is fixedly connected to the lower surface of the mounting cover (802). The connector (803) and the mounting piece (804) are engaged. A connecting ring (805) is provided inside the fixed cylinder (801), and a filter screen (806) is fixedly installed inside the connecting ring (805).

2. The vacuum quenching oil adding device according to claim 1, characterized in that: A fixing ring (807) is fixedly installed on the inner wall of the fixing cylinder (801), and a connecting ring (805) is located on the upper side of the fixing ring (807).

3. The vacuum quenching oil adding device according to claim 1, characterized in that: A pressure ring (808) is fixedly installed on the inner wall of the mounting component (804), and the pressure ring (808) squeezes the connecting ring (805).

4. The vacuum quenching oil adding device according to claim 1, characterized in that: The mounting component (804) has mounting grooves (809) on all four sides, and a locking block (810) is slidably connected inside the mounting groove (809). The connector (803) has locking slots (811) on all four sides, and the locking block (810) engages with the locking slot (811).

5. The vacuum quenching oil adding device according to claim 4, characterized in that: A baffle (812) is slidably connected inside the mounting groove (809), and a locking block (810) is fixedly connected to the baffle (812). A spring (813) is fixedly installed between the baffle (812) and the inner wall of the mounting groove (809).

6. The vacuum quenching oil adding device according to claim 1, characterized in that: Heating plates (9) are installed on the inner wall surface of the oil storage tank (3), and a temperature sensor (10) is fixedly installed on the surface of one side of the heating plate (9).

7. The vacuum quenching oil adding device according to claim 1, characterized in that: The outer surface of the oil storage tank (3) is fixedly connected with an insulation board (11), and the insulation board (11) is made of glass wool.