Vacuum pit gas nitriding furnace with lifting structure

By designing a lifting structure for the vacuum well-type gas nitriding furnace, and utilizing sliding blocks, sliding rods, rails, and a hoisting machine, the problem of traditional furnace bodies being unable to be hoisted has been solved. This enables flexible lifting and efficient maintenance of the furnace body, improving the safety and efficiency of operations inside the well.

CN224494296UActive Publication Date: 2026-07-14CASE FURNACE TECH JIANGSU CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CASE FURNACE TECH JIANGSU CO LTD
Filing Date
2025-08-04
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Traditional vacuum well-type gas nitriding furnaces cannot be hoisted, resulting in low maintenance efficiency. The space inside the well is limited, and the furnace is prone to shaking during hoisting, which can lead to positioning deviations or collisions with the well wall.

Method used

Design a vacuum well-type gas nitriding furnace with a lifting structure. The furnace body is flexibly raised and lowered by a sliding block and a sliding rod forming a vertical slide rail, combined with a hoist and guide pulley. It can be locked at any height through fixing holes. The support platform supports the weight of the furnace body, reducing long-term load.

Benefits of technology

It enables flexible lifting and lowering of the furnace body, adapting to different well depths, avoiding shaking, improving maintenance efficiency, reducing equipment wear, and enhancing positioning accuracy.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of vacuum shaft type gas nitriding furnace, especially a vacuum shaft type gas nitriding furnace with lifting structure, including first platform, the middle part of first platform upper surface is provided with support platform, the upper surface of support platform is provided with furnace body, the bottom of furnace body lateral wall is evenly arranged and is provided with a plurality of lifting mechanisms, and the lifting mechanism includes sliding block, sliding rod, sliding rod is evenly arranged and is provided at first platform upper surface, and sliding block is slidably connected on sliding rod, one side of furnace body is provided with second platform, the utility model forms vertical slide rail structure through the sliding block and sliding rod that set up, and the lifting path of furnace body is restricted, the first mounting hole of sliding block and the second mounting hole of sliding rod are fixed through the bolt, can lock the furnace body at any height, adapts to different well depth working condition, and the support platform supports the dead weight of furnace body, reduces the long -term load of lifting mechanism, and the lifting mechanism that sets up cooperates the hoist and realizes the flexible lifting of furnace body.
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Description

Technical Field

[0001] This utility model relates to the field of vacuum well-type gas nitriding furnace technology, and in particular to a vacuum well-type gas nitriding furnace with a lifting structure. Background Technology

[0002] Vacuum well-type gas nitriding furnaces are widely used in the field of metal surface treatment. These furnaces are all set up inside a well. Traditional furnace bodies are mostly fixed and cannot be hoisted up. Maintenance can only be carried out by entering the well, which is inefficient. Moreover, the space inside the well is limited, restricting maintenance. Furthermore, when using external hoisting equipment, the furnace body is prone to shaking when suspended, causing deviation from the well opening and even collision with the well wall. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a vacuum well-type gas nitriding furnace with a lifting structure.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A vacuum well-type gas nitriding furnace with a lifting structure includes a first platform, a support platform at the center of the upper surface of the first platform, a furnace body at the upper surface of the support platform, and multiple lifting mechanisms evenly arranged at the bottom of the side wall of the furnace body. Each lifting mechanism includes a sliding block and a sliding rod. The sliding rods are evenly arranged at the upper surface of the first platform, and the sliding blocks are slidably engaged with the sliding rods. A second platform is provided on one side of the furnace body, and a hoisting machine for hoisting the furnace body is provided on the second platform.

[0006] In addition, a preferred structure is that hooks are symmetrically arranged on both sides of the top of the furnace body.

[0007] Furthermore, in a preferred configuration, the hoisting machine includes a hoisting rope connected to its output end, and a hoisting frame is connected to the other end of the hoisting rope away from the hoisting machine.

[0008] In addition, a preferred structure is that the bottom of the lifting frame is symmetrically provided with lifting rings, which are used to connect with hooks.

[0009] In addition, a preferred structure is that a guide frame is provided on the second platform. The guide frame includes a frame body, and guide pulleys are symmetrically rotated on the top of the frame body. The hoisting rope is threaded between the guide pulleys on both sides.

[0010] In addition, a preferred structure is that a plurality of first mounting holes are evenly arranged on the side walls of both sides of the sliding block.

[0011] In addition, a preferred structure is that multiple second mounting holes are vertically and evenly arranged on both sides of the sliding rod, and a support foot is provided at the bottom of the sliding rod.

[0012] The beneficial effects of this utility model are as follows: This utility model forms a vertical slide rail structure by setting a sliding block and a sliding rod, which constrains the lifting path of the furnace body. The first mounting hole of the sliding block and the second mounting hole of the sliding rod are fixed by a pin, which can lock the furnace body at any height, adapt to different well depth working conditions, and the support platform supports the weight of the furnace body, reducing the long-term load on the lifting mechanism. The lifting mechanism, together with the hoisting machine, realizes the flexible lifting and lowering of the furnace body. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of a vacuum well-type gas nitriding furnace;

[0014] Figure 2 This is a structural schematic diagram of the hoisting machine;

[0015] Figure 3 This is a schematic diagram of the furnace body.

[0016] Figure 4 This is a schematic diagram of the furnace body and lifting mechanism after disassembly.

[0017] Figure 5 This is a schematic diagram of the lifting mechanism.

[0018] In the diagram: 1 First platform, 11 Support platform, 2 Second platform, 3 Furnace body, 31 Hook, 4 Hoisting machine, 41 Hoisting rope, 42 Hoisting frame, 43 Hoisting ring, 5 Guide frame, 51 Frame body, 52 Guide pulley, 6 Lifting mechanism, 61 Sliding block, 611 First mounting hole, 62 Sliding rod, 621 Second mounting hole, 63 Support foot. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Reference Figure 1-5 A vacuum well-type gas nitriding furnace with a lifting structure includes a first platform 1, a support platform 11 is provided in the middle of the upper surface of the first platform 1, a furnace body 3 is provided on the upper surface of the support platform 11, and a plurality of lifting mechanisms 6 are evenly arranged on the bottom of the side wall of the furnace body 3. The lifting mechanism 6 includes a sliding block 61 and a sliding rod 62. The sliding rod 62 is evenly arranged on the upper surface of the first platform 1, and the sliding block 61 is slidably engaged with the sliding rod 62. A second platform 2 is provided on one side of the furnace body 3, and a hoisting machine 4 is provided on the second platform 2 for hoisting the furnace body 3. The hoisting machine 4 is used to hoist the furnace body 3 to adjust its height.

[0021] In addition, hooks 31 are symmetrically arranged on both sides of the top of the furnace body 3, and the hooks 31 are used for being lifted.

[0022] Meanwhile, the hoisting machine 4 includes a hoisting rope 41 connected to the output end, and a hoisting frame 42 is connected to the other end of the hoisting rope 41 away from the hoisting machine 4. Hoisting rings 43 are symmetrically arranged at the bottom of the hoisting frame 42, and the hoisting rings 43 are used to connect with the hook ring 31.

[0023] The second platform 2 is equipped with a guide frame 5, which includes a frame 51. The top of the frame 51 is symmetrically and rotatably equipped with guide pulleys 52. The hoisting rope 41 is threaded between the guide pulleys 52 on both sides. The guide pulleys 52 are used to guide the hoisting rope 41.

[0024] In addition, multiple first mounting holes 611 are evenly arranged on both sides of the sliding block 61.

[0025] Furthermore, multiple second mounting holes 621 are vertically and evenly arranged on both sides of the sliding rod 62, and a support foot 63 is provided at the bottom of the sliding rod 62, which is fixed on the first platform 1.

[0026] In this embodiment, the first platform 1 is set at the bottom of the well, and the second platform 2 is set on the ground. When it is necessary to briefly raise and lower the furnace body to bring it out of the well, a steel wire rope can be connected between the hook ring 31 and the lifting ring 43. Then, the hoisting machine 4 can be used to wind up the hoisting rope 41. The hoisting rope 41 lifts the furnace body 3, and the sliding block 61 slides vertically on the fixed sliding rod 62 to ensure that the furnace body 3 will not shake during hoisting. Moreover, when the furnace body 3 does not need to be installed in the well, the first mounting hole 611 can be aligned with the second mounting hole 621 to install the fixing components, thereby adjusting the height of the furnace body. At the same time, the bottom support platform 11 is used to support the furnace body 3, so that when it is in the well, it is not necessary to install the fixing components at the first mounting hole 611 and the second mounting hole 621.

[0027] In this utility model, a vertical slide rail structure is formed by the sliding block 61 and the sliding rod 62 to constrain the lifting path of the furnace body 3. The first mounting hole 611 of the sliding block 61 and the second mounting hole 621 of the sliding rod 62 are fixed by a pin, which can lock the furnace body at any height to adapt to different well depth conditions. In addition, the support platform 11 supports the weight of the furnace body and reduces the long-term load on the lifting mechanism 6. The lifting mechanism 6, together with the hoisting machine 4, realizes the flexible lifting of the furnace body 3.

[0028] 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 vacuum well-type gas nitriding furnace with a lifting structure, comprising a first platform (1), characterized in that, A support platform (11) is provided in the middle of the upper surface of the first platform (1). A furnace body (3) is provided on the upper surface of the support platform (11). Multiple lifting mechanisms (6) are evenly arranged at the bottom of the side wall of the furnace body (3). The lifting mechanism (6) includes a sliding block (61) and a sliding rod (62). The sliding rod (62) is evenly arranged on the upper surface of the first platform (1). The sliding block (61) slides on the sliding rod (62). A second platform (2) is provided on one side of the furnace body (3). A hoisting machine (4) for hoisting the furnace body (3) is provided on the second platform (2).

2. A vacuum well-type gas nitriding furnace with a lifting structure according to claim 1, characterized in that, Hooks (31) are symmetrically arranged on both sides of the top of the furnace body (3).

3. A vacuum well-type gas nitriding furnace with a lifting structure according to claim 1, characterized in that, The hoisting machine (4) includes a hoisting rope (41) connected to the output end, and a hoisting frame (42) is connected to the other end of the hoisting rope (41) away from the hoisting machine (4).

4. A vacuum well-type gas nitriding furnace with a lifting structure according to claim 3, characterized in that, The bottom of the hoisting frame (42) is symmetrically provided with lifting rings (43), which are used to connect with hooks (31).

5. A vacuum well-type gas nitriding furnace with a lifting structure according to claim 1, characterized in that, The second platform (2) is provided with a guide frame (5), which includes a frame (51). The top of the frame (51) is symmetrically rotated with guide pulleys (52), and the hoisting rope (41) is threaded between the guide pulleys (52) on both sides.

6. A vacuum well-type gas nitriding furnace with a lifting structure according to claim 1, characterized in that, Multiple first mounting holes (611) are evenly arranged on both sides of the sliding block (61).

7. A vacuum well-type gas nitriding furnace with a lifting structure according to claim 1, characterized in that, The sliding rod (62) has multiple second mounting holes (621) arranged vertically and evenly on both sides of its sidewalls, and a support foot (63) is provided at the bottom of the sliding rod (62).