Mounting device for oxygen probe of heat treatment furnace

Abstract

The utility model relates to a heat treatment furnace oxygen probe installation device, which comprises a support unit, the support unit comprises a base and a T-shaped frame connected to one side of the upper part of the base, and the other side of the upper part of the base is fixedly connected with a scale plate; the end, close to the scale plate, of the upper end of the T-shaped frame is fixedly connected to the scale plate, a sliding traction mechanism is arranged at the top of the T-shaped frame, the sliding traction mechanism bypasses one end of the T-shaped frame through a traction chain and is movably connected with the scale plate, the other end of the traction chain is wound around the other end of the T-shaped frame, and a hoisting box is arranged at the end of the traction chain. An oxygen probe is hoisted in the hoisting box; the device adopts a pulley chain lifting mode and realizes smooth installation of the oxygen probe in the heat treatment equipment by virtue of the scale plate, so that the time and the size of the oxygen probe entering the equipment are ensured, the installation quality is improved, the oxygen probe zirconium oxide is prevented from being damaged, and the service life of the oxygen probe is prevented from being influenced.

Description

Technical Field

[0001] This utility model relates to an oxygen probe installation device for a heat treatment furnace, and belongs to the technical field of heat treatment equipment. Background Technology

[0002] In heat treatment, oxygen probes play a crucial role in precisely controlling the furnace atmosphere and ensuring the quality of heat treatment. However, existing oxygen probe installation methods have many inconveniences. When the furnace temperature is 800-1000°C, the zirconia at the tip of the oxygen probe requires gradual preheating during installation. The oxygen probe manual clearly states that the probe should be inserted 20mm every 2 minutes during installation. However, the oxygen probe itself lacks graduations, and the heat treatment equipment also lacks a scale, causing significant inconvenience during installation. Generally, installation relies on manual handling and experience, which is time-consuming and tiring. Furthermore, the 20mm insertion time every 2 minutes at high temperatures makes it difficult to guarantee the timing and dimensions when using a hoist or manual insertion, affecting installation quality and potentially damaging the zirconia and shortening the probe's lifespan. Utility Model Content

[0003] In view of the technical defects of the prior art, the purpose of this utility model is to provide an oxygen probe installation device for a heat treatment furnace, which provides convenient installation of the oxygen probe without relying on manual sensing, thus avoiding the consumption of physical strength due to the installation time; the device has a simple structure, is easy to operate, and improves the installation efficiency of the oxygen probe.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an oxygen probe installation device for a heat treatment furnace, comprising: a support unit, the support unit including a base and a T-shaped frame connected to one side of the upper part of the base, and a scale plate fixedly connected to the other side of the upper part of the base; the upper end of the T-shaped frame near the scale plate is fixedly connected to the scale plate, a sliding traction mechanism is provided at the top of the T-shaped frame, the sliding traction mechanism passes around one end of the T-shaped frame via a traction chain and is movably connected to the scale plate, the other end of the traction chain passes around the other end of the T-shaped frame and a lifting box is provided at the end of the traction chain, and an oxygen probe is suspended in the lifting box;

[0005] Furthermore, the T-shaped frame includes two T-shaped pieces that are stacked front to back, have the same size and specifications, and are parallel to each other with a gap. The bottom ends of the two T-shaped pieces are fixed to the upper surface of one end of the base. The top ends of the two T-shaped pieces on the side closer to the scale plate are respectively attached to the front and back of the scale plate, so that the scale plate is clamped by the two T-shaped pieces.

[0006] Furthermore, the bottom end of the scale plate is fixed to the upper surface of the other end of the base, and the top end of the scale plate extends out of the upper surface of the T-shaped frame.

[0007] Furthermore, the sliding traction mechanism is located at the upper end between the two T-shaped pieces and is wound with a traction chain;

[0008] Furthermore, the sliding traction mechanism includes: two sets of transmission components and a traction chain. The two sets of transmission components are respectively located at the two ends of the upper part between the two T-shaped pieces. Each set of transmission components includes a pulley, a rotating bearing, and a fixed shaft. The fixed shaft passes through the rotating bearing and is fixed to the inner sleeve of the rotating bearing. The rotating bearing is disposed inside the pulley, and the inner sleeve of the pulley is fixed to the outer sleeve of the rotating bearing. A traction chain slide is provided in the pulley. The two ends of the fixed shaft are respectively fixedly connected to the inner walls of the two T-shaped pieces.

[0009] Furthermore, the traction chains are all wound around the traction chain slides of the two pulleys, with one end going around one pulley and passing through the gap between the two T-shaped pieces to extend downwards to the scale plate, and the other end of the traction chain going around the other pulley and reaching the outside of the T-shaped frame to be fixed downwards to the top of the lifting box.

[0010] Furthermore, the scale plate includes a plate body, the plate body having a plurality of windows evenly opened from top to bottom, the transition area between each two adjacent windows forming a middle beam of the scale plate; each window includes an upper edge and a lower edge, the distance between the upper edges of each two adjacent windows is set to 20mm; the opening of the window faces the location of the lifting box; a hook is welded to one end of the traction chain near the scale plate, and the hook is used to hook onto the scale plate;

[0011] In the above structure, the distance (20mm) between the top edges of two adjacent windows is one moving distance unit of the hook. Each time the hook moves one moving distance unit, it needs to move from the top edge of one window to the top edge of another window.

[0012] Furthermore, the hoisting box is a rectangular cavity box with a switch baffle structure on one side wall. The side of the box with the switch baffle is the front end of the hoisting box, and the side of the box opposite to the switch baffle is the rear end of the hoisting box. A bottom notch is provided at the bottom of the box and extends from the front end to the rear end of the hoisting box.

[0013] Furthermore, the length of the hoisting box is greater than the width of the oxygen probe.

[0014] Furthermore, the width of the notch on the bottom of the hoisting box is much smaller than the width of the oxygen probe, and it is compatible with the diameter of the probe rod at the bottom of the oxygen probe.

[0015] Furthermore, the switch baffle structure has a baffle insertion groove on the upper top surface edge near the front end of the hoisting box, and a baffle is installed in the baffle insertion groove. The thickness of the baffle is adapted to the width of the baffle insertion groove.

[0016] Furthermore, the baffle has a horizontally extending edge at the upper end and an "L"-shaped right-angle structure in cross-section;

[0017] Furthermore, the length of the baffle insertion slot is approximately the length of the hoisting box, and the lengths of the baffle and the baffle insertion slot are matched.

[0018] Furthermore, the lower ends of the baffle are respectively extended outward to form extension platforms with a thickness of 3mm, so that the length of the bottom of the baffle is greater than the length of the baffle insertion slot; the extension platform is provided to prevent the baffle from detaching from the lifting box when it is lifted upward from the baffle insertion slot of the lifting box.

[0019] Furthermore, a handle is also installed on the upper surface of the horizontal extension edge of the baffle, which makes it easy to drag the baffle up and down; when the baffle is closed, gravity falls down, and the lower surface of the horizontal extension edge of the baffle just rests on the upper surface of the baffle in front of the baffle insertion slot.

[0020] Furthermore, a timer base extends horizontally from the T-shaped piece at the front end of the T-shaped frame, and the timer is fixed to the timer base;

[0021] Furthermore, the base includes: a horizontal plate, with base extension angles extending from both ends of the horizontal plate and perpendicular to the direction of the horizontal plate;

[0022] Furthermore, the base extension angle is set to four, and each of the four base extension angles is provided with a retractable plate.

[0023] The beneficial effects of this utility model are:

[0024] This device uses a pulley chain lifting method and a scale plate to facilitate the smooth installation of the oxygen probe in the heat treatment equipment. This installation method ensures the timing and size of the oxygen probe entering the equipment, improves the installation quality, prevents damage to the zirconia of the oxygen probe, and avoids affecting the lifespan of the oxygen probe. The device is lightweight, convenient, retractable, and movable. When installed on top of complex heat treatment equipment, it can be adjusted according to the environment to ensure the stability of the device. Attached Figure Description

[0025] Figure 1 This is a structural diagram of the installation device of this utility model.

[0026] Figure 2 for Figure 1 Exploded exploded diagram.

[0027] Figure 3 for Figure 1 Diagram showing the connection structure between the hoisting box and the baffle.

[0028] Figure 4 for Figure 3 A side-view stereoscopic view.

[0029] Figure 5 for Figure 1 Side view.

[0030] Figure 6 This is a detailed structural diagram of the scale plate in the installation device of this utility model.

[0031] In the diagram, 1. Base, 2. T-shaped frame, 3. Scale plate, 3.1. Window, 3.2. Middle beam of scale plate, 3.1.1. Upper edge of window, 3.1.2. Lower edge of window, 4. Traction chain, 5. Lifting box, 6. Oxygen probe, 7. Pulley, 8. Rotary bearing, 9. Fixed shaft, 10. Hook, 5.1. Bottom notch, 11. Baffle, 11.1. Horizontal extension edge, 11.2. Extension platform, 12. Timer base, 13. Base extension angle, 14. Telescopic plate, 15. Mounting hole, 16. Timer, 17. Handle, a. Location of hook. Detailed Implementation

[0032] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0033] See Figures 1-6 An oxygen probe installation device for a heat treatment furnace includes: a support unit, the support unit including a base 1 and a T-shaped frame 2 connected to one side of the upper part of the base, and a scale plate 3 fixedly connected to the other side of the upper part of the base 1; the upper end of the T-shaped frame 2 near the scale plate 3 is fixedly connected to the scale plate 3, a sliding traction mechanism is provided on the top of the T-shaped frame 2, the sliding traction mechanism passes around one end of the T-shaped frame 2 via a traction chain 4 and is movably connected to the scale plate 3, the other end of the traction chain 4 passes around the other end of the T-shaped frame 2 and a lifting box 5 is provided at the end of the traction chain 4, and an oxygen probe 6 is suspended in the lifting box 5;

[0034] Furthermore, the T-shaped frame 2 includes two T-shaped pieces that are stacked front to back, have the same size and specifications, and are parallel to each other with a gap. The bottom ends of the two T-shaped pieces are fixed to the upper surface of one end of the base 1. The top ends of the two T-shaped pieces on the side closer to the scale plate 3 are respectively attached to the front and back of the scale plate 3, so that the scale plate 3 is clamped by the two T-shaped pieces.

[0035] Furthermore, the bottom end of the scale plate 3 is fixed to the upper surface of the other end of the base 1, and the top end of the scale plate 3 extends out of the upper surface of the T-shaped frame 2.

[0036] Furthermore, the sliding traction mechanism is located at the upper end between the two T-shaped pieces and is wound with a traction chain 4;

[0037] Furthermore, the sliding traction mechanism includes: two sets of transmission components and a traction chain 4. The two sets of transmission components are respectively located at the two ends of the upper part between the two T-shaped pieces. Each set of transmission components includes a pulley 7, a rotating bearing 8, and a fixed shaft 9. The fixed shaft 9 passes through the rotating bearing 8 and is fixed to the inner sleeve of the rotating bearing 8. The rotating bearing 8 is disposed inside the pulley 7, and the inner sleeve of the pulley 7 is fixed to the outer sleeve of the rotating bearing 8. A traction chain slide is provided in the pulley 7. The two ends of the fixed shaft 9 are respectively fixedly connected to the inner walls of the two T-shaped pieces.

[0038] Furthermore, the traction chain 4 is wound around the traction chain slide of the two pulleys 7, with one end going around one pulley 7 and passing through the gap between the two T-shaped pieces to extend downward to the scale plate 3. The other end of the traction chain 4 goes around the other pulley 7 and reaches the outside of the T-shaped frame 2 and is fixed downward to the top of the lifting box 5.

[0039] Furthermore, the scale plate 3 includes a plate body, which has a plurality of windows 3.1 evenly spaced from top to bottom. The transition area between each pair of adjacent windows 3.1 forms a middle beam 3.2 of the scale plate. Each window 3.1 includes an upper edge 3.1.1 and a lower edge 3.1.2. The distance between the upper edges 3.1.1 of each pair of adjacent windows 3.1 is set to 20mm. The opening of the window 3.1 faces the location of the lifting box 5. A hook 10 is welded to one end of the traction chain 4 near the scale plate 3, and the chain 4 is hooked to the scale plate 3 through the hook 10.

[0040] In the above structure, the distance (20mm) between the upper edges 3.1.1 of each two adjacent windows 3.1 is one moving distance unit of the hook 10. Each time the hook 10 moves one moving distance unit, it needs to move from the upper edge 3.1.1 of one window to the upper edge 3.1.1 of another window. Figure 6 The image shows the position a of the hook 10 during each movement distance unit.

[0041] Furthermore, the hoisting box 5 is a rectangular cavity box with a switch baffle structure on one side wall. The side of the box with the switch baffle is the front end of the hoisting box 5, and the side of the box opposite to the switch baffle is the rear end of the hoisting box 5. A bottom notch 5.1 is provided at the bottom of the box and extends from the front end to the rear end of the hoisting box 5.

[0042] Furthermore, the length of the hoisting box 5 is greater than the width of the oxygen probe 6, so that the oxygen probe 6 can enter the hoisting box 5;

[0043] Furthermore, the width of the bottom notch 5.1 of the hoisting box 5 is much smaller than the width of the oxygen probe 6, and is compatible with the diameter of the probe rod at the bottom of the oxygen probe 6, so that the probe rod of the oxygen probe 6 can pass through the bottom notch 5.5.

[0044] Furthermore, the switch baffle structure has a baffle insertion groove on the upper top surface edge near the front end of the hoisting box 5. A baffle 11 is provided in the baffle insertion groove. The thickness of the baffle 11 is adapted to the width of the baffle insertion groove, so that the baffle 11 can move up and down in the baffle insertion groove.

[0045] Furthermore, the baffle 11 has a horizontally extending edge 11.1 at the upper end and an "L"-shaped right-angle structure in cross-section;

[0046] Furthermore, the length of the baffle insertion slot is approximately the length of the hoisting box, and the length of the baffle and the baffle insertion slot are matched; thus, after the baffle 11 is closed, the baffle 11 can basically cover the front end of the hoisting box 5, blocking the oxygen probe 6 in the cavity of the hoisting box 5 to prevent the oxygen probe 6 from slipping off.

[0047] Furthermore, the lower ends of the baffle 11 are respectively extended outward to form extension platforms 11.2 with a thickness of 3mm, so that the length of the bottom of the baffle 11 is greater than the length of the baffle insertion slot; the extension platform 11.2 is provided to prevent the baffle 11 from being lifted out of the lifting box 5 when it is lifted upward from the baffle insertion slot of the lifting box 5.

[0048] Furthermore, a handle 17 is also installed on the upper surface of the horizontal extension edge 11.1 of the baffle 11, which facilitates dragging the baffle 11 up and down; when the baffle 11 is closed, it falls down by gravity, and the lower surface of the horizontal extension edge 11.1 of the baffle just lands on the upper surface of the baffle 11 in front of the baffle insertion slot.

[0049] Furthermore, a timer base 12 extends horizontally from the T-shaped piece at the front end of the T-shaped frame 2, and a timer 16 is fixed on the timer base 12. The timer uses an existing digital display time relay, model DH48S-1Z.

[0050] Furthermore, the base 1 includes: a horizontal plate, with base extension angles 13 extending from both ends of the horizontal plate and perpendicular to the direction of the horizontal plate; the base extension angles 13 maintain the stability of the base 1;

[0051] Furthermore, the base extension angle 13 is set to four, and each of the four base extension angles 13 is provided with a telescopic plate 14; the telescopic plate 14 can be extended or shortened in the base extension angle 13, which can be adjusted according to the environment when the complex heat treatment equipment is installed on top, and its function is to support the stability of the device; when needed, the telescopic plate 14 in the four base extension angles 13 can be pulled out to increase the contact area between the base 1 and the ground to adapt to the required installation environment and ensure the stability of the entire device; conversely, the telescopic plate 14 can be retracted.

[0052] The installation process using the oxygen probe mounting device described above is as follows:

[0053] Because the internal temperature of the heat treatment equipment is 800-1000°C during daily production, the oxygen probe 6 may malfunction and need to be replaced during processing. There is a corresponding mounting hole 15 on the top of the heat treatment equipment. Before replacement, place this mounting device near the oxygen probe mounting hole 15, open the baffle 11 of the hoisting box 5, insert the top of the oxygen probe 6 into the hoisting box 5, close the baffle 11, and the hoisting box 5 will hold the oxygen probe 6 through the bottom notch 5.1.

[0054] Adjust the oxygen probe 6 to the upper end of the mounting hole 15. The height of the oxygen probe 6 can be adjusted according to the hook 10. First, adjust the bottom of the oxygen probe 6 to the mounting hole 15 so that the bottom of the oxygen probe 6 is at the same level as the upper end of the mounting hole 15. Start the timer 16 and set it to prompt once every 2 minutes. Then, move the hook 10 up one movement distance unit of the scale plate 3 every 2 minutes until the oxygen probe 6 is completely inside the heat treatment equipment.

[0055] In one embodiment of this solution, the oxygen probe is installed in the equipment with a length of 800mm. In this case, the hook 10 on the traction chain 4 of the device needs to be moved 40 openings 3.1 from the scale plate 3, and the installation of this oxygen probe will take 80 minutes. The installation length of the oxygen probe varies depending on the equipment. In other embodiments of this solution, the installation length of the oxygen probe in the equipment is 1 meter or 1.2 meters.

[0056] After the oxygen probe is fully inserted into the heat treatment equipment, open the baffle 11 to detach the hoisting box 5 from the oxygen probe 6; remove the installation device from the site, fix and seal the threads of the oxygen probe 6.

[0057] Specifically, the entire installation device can be moved backward (towards the rear end of the hoisting box) so that the hoisting box 5 is far away from the oxygen probe 6. It should be noted that the oxygen probe 6 has threads on its top, which match the threads on the equipment. The oxygen probe 6 can be firmly fixed by turning it with a wrench.

[0058] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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 of this utility model.

[0059] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0060] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0061] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0062] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

Claims

1. A device for installing an oxygen probe in a heat treatment furnace, characterized in that, include: The support unit includes a base and a T-shaped frame connected to one side of the upper part of the base. A scale plate is fixedly connected to the other side of the upper part of the base. The upper end of the T-shaped frame near the scale plate is fixedly connected to the scale plate. A sliding traction mechanism is provided at the top of the T-shaped frame. The sliding traction mechanism passes around one end of the T-shaped frame via a traction chain and is movably connected to the scale plate. The other end of the traction chain passes around the other end of the T-shaped frame and a lifting box is provided at the end of the traction chain. An oxygen probe is suspended in the lifting box.

2. The oxygen probe installation device for a heat treatment furnace according to claim 1, characterized in that: The T-shaped frame includes two T-shaped pieces that are stacked front to back, are the same size and have parallel spacing between them. The bottom ends of the two T-shaped pieces are fixed to the upper surface of one end of the base. The top ends of the two T-shaped pieces on the side closer to the scale plate are respectively attached to the front and back of the scale plate, so that the scale plate is clamped by the two T-shaped pieces.

3. The oxygen probe installation device for a heat treatment furnace according to claim 2, characterized in that: The sliding traction mechanism is located at the upper end between the two T-shaped pieces and is wound with a traction chain.

4. The oxygen probe installation device for a heat treatment furnace according to claim 3, characterized in that: The sliding traction mechanism includes: two sets of transmission components and a traction chain. The two sets of transmission components are located at the upper ends between the two T-shaped pieces. Each set of transmission components includes a pulley, a rotating bearing, and a fixed shaft. The fixed shaft passes through the rotating bearing and is fixed to the inner sleeve of the rotating bearing. The rotating bearing is located inside the pulley, and the inner sleeve of the pulley is fixed to the outer sleeve of the rotating bearing. A traction chain track is provided in the pulley. The two ends of the fixed shaft are fixedly connected to the inner walls of the two T-shaped pieces.

5. The oxygen probe installation device for a heat treatment furnace according to claim 4, characterized in that: The traction chains are all wound around the traction chain tracks of the two pulleys, with one end going around one pulley and passing through the gap between the two T-shaped pieces to extend downwards to the scale plate. The other end of the traction chain goes around the other pulley and reaches the outside of the T-shaped frame, downwards and is fixed to the top of the lifting box.

6. The oxygen probe installation device for a heat treatment furnace according to claim 1, characterized in that: The scale plate includes a plate body with several windows evenly opened from top to bottom. The transition area between each pair of adjacent windows forms the middle beam of the scale plate. Each window includes an upper edge and a lower edge. The distance between the upper edges of each pair of adjacent windows is set to 20mm. The opening of the window faces the location of the lifting box. A hook is welded to one end of the traction chain near the scale plate and hooks onto the scale plate through the hook.

7. The oxygen probe installation device for a heat treatment furnace according to claim 1, characterized in that: The hoisting box is a rectangular cavity box with a switch baffle structure on one side wall. The side of the box with the switch baffle is the front end of the hoisting box, and the side of the box opposite to the switch baffle is the rear end of the hoisting box. A bottom notch is provided at the bottom of the box and extends from the front end to the rear end of the hoisting box.

8. The oxygen probe installation device for a heat treatment furnace according to claim 7, characterized in that: The switch baffle structure has a baffle insertion groove on the upper top surface edge near the front end of the mounting box. A baffle is installed in the baffle insertion groove, and the thickness of the baffle is adapted to the width of the baffle insertion groove.

9. The oxygen probe installation device for a heat treatment furnace according to claim 2, characterized in that: A timer base extends horizontally from the T-shaped piece at the front end of the T-shaped frame, and the timer is fixed to the timer base.

10. The oxygen probe installation device for a heat treatment furnace according to claim 1, characterized in that: The base includes: a horizontal plate, with base extension angles extending from both ends of the horizontal plate and perpendicular to the direction of the horizontal plate; the base extension angles are set to four, and each of the four base extension angles is provided with a telescopic plate.

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