A pit-type gas nitriding furnace

Abstract

This utility model relates to the field of nitriding furnace technology, and more particularly to a pit-type gas nitriding furnace, comprising: a furnace body, a device for nitriding treatment; and a furnace cover, disposed on the top of the furnace body and connected to the interior of the furnace body. This utility model uses a handwheel to drive a lead screw to rotate on a fixed bracket and bearing, causing the rotating lead screw to act on a connecting rod, which in turn drives two sets of sliding rods to move back and forth within a sleeve. Simultaneously, the sliding rods drive the ladder to move, while the ladder drives a rotating rod to rotate within a fixed block. This achieves the purpose of adjusting the ladder from a vertical to an inclined state, thereby alleviating the fear of heights and sense of imbalance experienced by workers climbing the ladder, thus reducing operational anxiety and effectively improving worker efficiency.

Description

Technical Field

[0001] This utility model relates to the field of nitriding furnace technology, specifically a pit-type gas nitriding furnace. Background Technology

[0002] A pit-type gas nitriding furnace is an industrial equipment used for nitriding metal surfaces. It uses high-temperature environments to diffuse active nitrogen atoms into the surface of workpieces to improve their hardness, wear resistance, and fatigue resistance.

[0003] A well-type gas nitriding furnace is disclosed in patent publication number CN 217948237 U, which includes a heating furnace. An operation panel is installed on the front side of the heating furnace. The heating furnace has heating tubes connected to its interior. The heating furnace includes a furnace body. A first support frame and a second support frame are installed on one side of the upper end of the furnace body. A shoulder plate is connected to the upper end of the furnace body. A support seat is sleeved in the middle of the shoulder plate.

[0004] To address the issues of time-consuming and labor-intensive disassembly of lifting rings in existing pit-type gas nitriding furnaces, which reduces work efficiency, current technology involves hinged installation on one side of the furnace bottom and cover plate using a hinge frame. This allows the cover plate to flip and connect to the furnace bottom, while a connecting frame on the cover plate supports and fixes it above the furnace bottom, ensuring a tight seal between the furnace bottom and the cover plate. This effectively reduces the time and labor required for furnace bottom installation and fixation, extends the service life of the furnace bottom and cover plate, and facilitates the operation of the equipment. However, when operating pit-type gas nitriding furnaces, the significant height of the furnace body, often accompanied by a vertical ladder on the furnace surface, can cause psychological stress for operators. This can lead to a fear of heights and a sense of imbalance, exacerbating operational anxiety and ultimately affecting work efficiency. Therefore, improvements are urgently needed. Utility Model Content

[0005] The purpose of this invention is to provide a well-type gas nitriding furnace to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a pit-type gas nitriding furnace, comprising;

[0007] Furnace body, equipment used for nitriding treatment;

[0008] The furnace cover is located on the top of the furnace body and is connected to the interior of the furnace body;

[0009] A stirring mechanism is provided on the top of the furnace cover, and the stirring mechanism extends through the furnace cover into the interior of the furnace body;

[0010] An electric motor is mounted on the furnace body surface to the left of the stirring mechanism and is used to drive the stirring mechanism.

[0011] The exhaust port is located on the top of the furnace cover and is connected to the inside of the furnace cover;

[0012] A connecting pipe is installed at the top of the exhaust port, and the connecting pipe is connected to the exhaust port via a flange;

[0013] A ladder is provided on the front surface of the furnace body;

[0014] An adjustment component is located between the ladder and the furnace body to adjust the operating angle of the ladder.

[0015] As a further preferred embodiment of this technical solution, the adjustment component includes two sets of fixing blocks symmetrically arranged on the front surface of the furnace body. Rotating rods are rotatably connected within the two sets of fixing blocks. The side of each set of rotating rods facing away from the furnace body is fixedly connected to the surface of the ladder. A ladder is fixedly connected to the front surface of the rotating rod.

[0016] As a further preferred embodiment of this technical solution, two sets of sleeves are fixedly connected to the furnace body surface below the two sets of fixed blocks. Sliding rods are slidably connected inside the two sets of sleeves. Connecting rods are fixedly connected to the outer walls of the two sets of sliding rods. Bearings are built into the furnace body surface in the middle of the two sets of sleeves. Lead screws are fixedly connected to the surface of the bearings on the side away from the furnace body. Both sets of lead screws are threadedly connected to the connecting rods.

[0017] As a further preferred embodiment of this technical solution, a fixed bracket is fixedly connected to the outer wall of the furnace body above the lead screw, and the lead screw rotates within the fixed bracket's internal threads. A handwheel is fixedly connected to the outer wall of the fixed bracket on the side opposite to the bearing.

[0018] As a further preferred embodiment of this technical solution, a limiting component is provided between the exhaust port and the connecting pipe. The exhaust port is connected to the connecting pipe through the limiting component, and the limiting component includes two sets of fixing seats symmetrically arranged on the outer walls on both sides of the exhaust port.

[0019] As a further preferred embodiment of this technical solution, each of the two sets of fixed seats has a sliding groove on the side surface facing the exhaust port, a fixed rod is fixedly connected to the inner wall of each of the two sets of sliding grooves, a sliding plate is slidably connected to each of the two sets of fixed rods, and a spring is wound around the surface of the fixed rod above each of the two sets of sliding plates.

[0020] As a further preferred embodiment of this technical solution, positioning blocks are fixedly connected to the side surfaces of both sets of sliding plates facing the connecting pipe, and positioning holes are opened on the connecting pipe surfaces corresponding to the bottom surfaces of the two sets of positioning blocks.

[0021] As a further preferred embodiment of this technical solution, the positioning seat is cylindrical in design, and both sets of the front surface of the slide plates are fixedly connected with handles, both sets of the handles being C-shaped.

[0022] This utility model provides a pit-type gas nitriding furnace, which has the following beneficial effects:

[0023] This invention uses a handwheel to drive a lead screw to rotate on a fixed bracket and bearing. The rotating lead screw acts on a connecting rod, causing the connecting rod to move two sets of sliding rods back and forth within a sleeve. The sliding rods simultaneously move the ladder, while the ladder drives a rotating rod to rotate within a fixed block. This achieves the purpose of adjusting the ladder from a vertical to an inclined state, thereby alleviating the fear of heights and sense of imbalance that workers experience when climbing the ladder, thus reducing operational anxiety and effectively improving work efficiency. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 This is a partial cross-sectional structural diagram of the adjustment component of this utility model;

[0026] Figure 3 This is a partial cross-sectional structural diagram of the limiting component of this utility model;

[0027] Figure 4 This utility model Figure 3 Enlarged view of point A in the middle.

[0028] In the diagram: 1. Furnace body; 2. Furnace cover; 3. Stirring mechanism; 4. Motor; 5. Exhaust port; 6. Connecting pipe; 7. Ladder; 8. Adjusting component; 81. Fixing block; 82. Rotating rod; 83. Sleeve; 84. Slide rod; 85. Connecting rod; 86. Bearing; 87. Lead screw; 88. Fixed bracket; 89. Handwheel; 90. Limiting component; 91. Fixed seat; 92. Slide groove; 93. Fixing rod; 94. Slide plate; 95. Spring; 96. Positioning block; 97. Positioning hole; 98. Pull handle. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0030] This utility model provides a technical solution: such as Figures 1 to 4 As shown in this embodiment, a well-type gas nitriding furnace includes several parts such as a furnace body 1, a furnace cover 2, a stirring mechanism 3, a motor 4, an exhaust port 5, a connecting pipe 6, a ladder 7, and an adjustment component 8;

[0031] The adjustment component 8 includes two sets of fixing blocks 81 symmetrically arranged on the front surface of the furnace body 1. Rotating rods 82 are rotatably connected inside the two sets of fixing blocks 81. The side of the two sets of rotating rods 82 away from the furnace body 1 is fixedly connected to the surface of the ladder 7. The front surface of the rotating rods 82 is fixedly connected to the ladder 7. Two sets of sleeves 83 are fixedly connected to the surface of the furnace body 1 below the two sets of fixing blocks 81. Sliding rods 84 are slidably connected inside the two sets of sleeves 83. Connecting rods 85 are fixedly connected to the outer walls of the two sets of sliding rods 84. Bearings 86 are built into the furnace body 1 surface in the middle of the two sets of sleeves 83. Lead screws 87 are fixedly connected to the side of the bearings 86 away from the furnace body 1. Both sets of lead screws 87 are threadedly connected to the connecting rods 85. A fixed bracket 88 is fixedly connected to the outer wall of the furnace body 1 above the lead screws 87, and the lead screws 87 rotate threadedly inside the fixed bracket 88. A handwheel 89 is fixedly connected to the outer wall of the fixed bracket 88 away from the bearings 86.

[0032] The handwheel 89 drives the lead screw 87 to rotate on the fixed bracket 88 and bearing 86, causing the rotating lead screw 87 to act on the connecting rod 85. The connecting rod 85 then drives the two sets of sliding rods 84 to move back and forth within the sleeve 83, and the sliding rods 84 simultaneously drive the ladder 7 to move. At the same time, the ladder 7 drives the rotating rod 82 to rotate within the fixed block 81, thereby achieving the purpose of adjusting the angle of the ladder 7. This alleviates the fear of heights and sense of imbalance that workers may experience when climbing the ladder 7, which can exacerbate operational anxiety and effectively improve the work efficiency of the workers.

[0033] Furthermore, a limiting component 9 is provided between the exhaust port 5 and the connecting pipe 6. The exhaust port 5 is connected to the connecting pipe 6 through the limiting component 9. The limiting component 9 includes two sets of fixing seats 91 symmetrically arranged on the outer walls of both sides of the exhaust port 5. Each of the two sets of fixing seats 91 has a groove 92 on the surface facing the exhaust port 5. A fixing rod 93 is fixedly connected to the inner wall of each of the two sets of grooves 92. A sliding plate 94 is slidably connected to each of the two sets of fixing rods 93. A spring 95 is wound around the surface of the fixing rods 93 above each of the two sets of sliding plates 94. A positioning block 96 is fixedly connected to the surface of each of the two sets of sliding plates 94 facing the connecting pipe 6. A positioning hole 97 is opened on the surface of the connecting pipe 6 corresponding to the bottom surface of each of the two sets of positioning blocks 96. A handle 98 is fixedly connected to the front surface of each of the two sets of sliding plates 94. Both handles 98 are C-shaped.

[0034] By pushing the handle 98 to the top of the exhaust port 5, the handle 98 causes the slide plate 94 to slide on the fixed rod 93, which in turn causes the positioning block 96 to slide. At the same time, the slide plate 94 presses against the inner wall of the fixed rod 93 against the spring 95, thereby bringing the connecting pipe 6 into contact with the exhaust port 5 and aligning the positioning block 96 with the positioning hole 97. Then, by releasing the handle 98, the restoring force of the spring 95 pushes the slide plate 94 back to its original position on the fixed rod 93, and the positioning block 96 is inserted into the positioning hole 97. This achieves the purpose of aligning the exhaust port 5 with the threaded hole on the connecting pipe 6, so that the operator can use the flange to install the connecting pipe 6 on the exhaust port 5 for use.

[0035] This utility model provides a well-type gas nitriding furnace. The specific working principle is as follows: When it is necessary to maintain or operate the furnace body 1, first turn the handwheel 89, so that the handwheel 89 drives the lead screw 87 to rotate on the bearing 86. The rotating lead screw 87 acts on the bearing 86, so that the connecting rod 85 drives the two sets of sliding rods 84 to move back and forth in the sleeve 83. The sliding rods 84 synchronously drive the ladder 7 to move. At the same time, the ladder 7 drives the rotating rod 82 to rotate in the fixed block 81, thereby achieving the purpose of adjusting the use angle of the ladder 7. After adjusting the ladder 7 to the required angle, the furnace body 1, furnace cover 2 and stirring mechanism 3 can be maintained and operated by climbing the ladder 7.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pit-type gas nitriding furnace, characterized in that: include; Furnace body (1), equipment used for nitriding treatment; The furnace cover (2) is located on the top of the furnace body (1) and is connected to the interior of the furnace body (1); A stirring mechanism (3) is provided on the top of the furnace cover (2), and the stirring mechanism (3) extends through the furnace cover (2) into the interior of the furnace body (1); The motor (4) is installed on the surface of the furnace body (1) on the left side of the stirring mechanism (3) and is used to drive the stirring mechanism (3); The exhaust port (5) is located on the top of the furnace cover (2) and is connected to the inside of the furnace cover (2); A connecting pipe (6) is provided at the top of the exhaust port (5), and the connecting pipe (6) is connected to the exhaust port (5) through a flange; A ladder (7) is provided on the front surface of the furnace body (1); An adjustment component (8) is provided between the ladder (7) and the furnace body (1) for adjusting the angle of use of the ladder (7).

2. A pit gas nitriding furnace according to claim 1, characterized in that: The adjustment component (8) includes two sets of fixing blocks (81) symmetrically arranged on the front surface of the furnace body (1). Rotating rods (82) are rotatably connected inside the two sets of fixing blocks (81). The side of the two sets of rotating rods (82) facing away from the furnace body (1) is fixedly connected to the surface of the ladder (7). The front surface of the rotating rod (82) is fixedly connected to the ladder (7).

3. A pit gas nitriding furnace according to claim 2, characterised in that: Two sets of sleeves (83) are fixedly connected to the surface of the furnace body (1) below the two sets of fixed blocks (81). Sliding rods (84) are slidably connected inside the two sets of sleeves (83). Connecting rods (85) are fixedly connected to the outer walls of the two sets of sliding rods (84). Bearings (86) are built into the surface of the furnace body (1) in the middle of the two sets of sleeves (83). Screws (87) are fixedly connected to the surface of the bearings (86) on the side away from the furnace body (1). Both sets of screws (87) are threadedly connected to the connecting rods (85).

4. A pit gas nitriding furnace according to claim 3, characterised in that: A fixed bracket (88) is fixedly connected to the outer wall of the furnace body (1) above the lead screw (87), and the lead screw (87) rotates in the fixed bracket (88) with a thread. A handwheel (89) is fixedly connected to the outer wall of the fixed bracket (88) on the side away from the bearing (86).

5. A pit gas nitriding furnace according to claim 4, characterised in that: A limiting component (9) is provided between the exhaust port (5) and the connecting pipe (6). The exhaust port (5) is connected to the connecting pipe (6) through the limiting component (9). The limiting component (9) includes two sets of fixing seats (91) symmetrically arranged on the outer walls on both sides of the exhaust port (5).

6. A pit gas nitriding furnace according to claim 5, characterised in that: Both sets of fixed seats (91) have a sliding groove (92) on the side facing the exhaust port (5). Both sets of sliding grooves (92) have a fixed rod (93) fixedly connected to the inner wall of each set of sliding grooves (92). Both sets of fixed rods (93) have a sliding plate (94) slidably connected to each other. Both sets of fixed rods (93) have a spring (95) wound around the surface of the fixed rods (93) above the sliding plates (94).

7. A pit gas nitriding furnace according to claim 6, characterised in that: Both sets of sliding plates (94) have a positioning block (96) fixedly connected to the side surface facing the connecting pipe (6), and the bottom surface of both sets of positioning blocks (96) has a positioning hole (97) on the surface of the connecting pipe (6).

8. A pit gas nitriding furnace according to claim 7, characterised in that: Both sets of the skateboards (94) have handles (98) fixedly connected to their front surfaces, and both sets of handles (98) are designed in a C-shape.

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