Workpiece hanging tool of ultra-deep well type nitriding furnace

Abstract

The utility model relates to the technical field of hanging tools, in particular to a workpiece hanging tool of an ultra-deep well type nitriding furnace. The device comprises an inner circular ring and an outer circular ring, a plurality of supporting blocks are arranged between the outer wall of the inner circular ring and the inner wall of the outer circular ring, a suspension structure is welded to the lower surface of the inner circular ring, the suspension structure comprises a connecting ring, the upper surface of the connecting ring is concentrically welded to the lower surface of the inner circular ring, and a connecting rod is arranged in the connecting ring. The two ends of the connecting rods are connected with the inner wall of the connecting ring, and workpiece mounting positions are arranged on the connecting rods. The device solves the problem that wind resistance affects the quality of heat treatment.

Description

Technical Field

[0001] The utility model relates to the technical field of hanging tooling, in particular to a workpiece hanging tooling of an ultra-deep well type nitriding furnace. Background Art

[0002] The existing hanging tooling in the nitriding furnace generally includes a ring, which is placed on a circular step in the furnace. There is a hanging station on the ring. In order to ensure the strength of the suspension, the thickness of the ring is generally thicker, and the thick wall of the ring will extend out of the circular step. The protruding part will block the air circulation in the furnace. It has little effect in an ordinary furnace, but in an ultra-deep well nitriding furnace, the circulating air requirements are very high, and the wind resistance will affect the quality of heat treatment. Utility Model Content

[0003] In order to solve the problems in the related art, the utility model provides a workpiece hanging device for an ultra-deep well nitriding furnace, which solves the problem that wind resistance may affect the quality of heat treatment.

[0004] In order to solve the above problems, the following technical solutions are provided:

[0005] The workpiece suspension fixture of the ultra-deep well nitriding furnace of the utility model comprises an inner circular ring and an outer circular ring, a plurality of support blocks are arranged between the outer wall of the inner circular ring and the inner wall of the outer circular ring, and a suspension structure is welded on the lower surface of the inner circular ring; the suspension structure comprises a connecting ring, the upper surface of the connecting ring is concentrically welded to the lower surface of the inner circular ring, a connecting rod is arranged inside the connecting ring, both ends of the connecting rod are connected to the inner wall of the connecting ring, and a workpiece mounting position is arranged on the connecting rod.

[0006] In the above scheme, by providing a support block between the outer ring and the inner ring, the wind in the ultra-deep well nitriding furnace can circulate normally, effectively reducing wind resistance, thereby solving the problem of wind resistance.

[0007] The workpiece mounting position comprises a limit block and a connecting rod, one end of the connecting rod is connected to the connecting rod, the limit block is connected to the other end of the connecting rod, and the limit block is arranged in parallel with the first connecting rod.

[0008] In the above scheme, the workpiece is located on the connecting rod by setting the limit block, and the limit block is used to limit the position, so that the workpiece is not easy to fall.

[0009] There are two connecting rods, which are arranged in a cross shape with the same height, and a lifting ring is arranged on the center of the cross shape.

[0010] In the above scheme, the stability of the device is improved by setting the connecting rod, and the device is easily placed in the nitriding furnace by setting the hanging ring.

[0011] A workpiece mounting position is provided on each of the four extension portions of the connecting rod, and the four workpiece mounting positions are evenly divided along the circumferential direction.

[0012] In the above scheme, the workpiece mounting positions are symmetrically arranged, which improves the stability and increases the number of suspended workpieces.

[0013] The above solution has the following advantages:

[0014] 1. Since the workpiece hanging fixture of the ultra-deep well nitriding furnace of the utility model comprises an inner ring and an outer ring, a plurality of supporting blocks are arranged between the outer wall of the inner ring and the inner wall of the outer ring, and a hanging structure is welded on the lower surface of the inner ring; the hanging structure comprises a connecting ring, the upper surface of the connecting ring is concentrically welded on the lower surface of the inner ring, a connecting rod is arranged in the connecting ring, both ends of the connecting rod are connected to the inner wall of the connecting ring, a workpiece mounting position is arranged on the connecting rod, and the supporting blocks are arranged between the outer ring and the inner ring, so that the wind in the ultra-deep well nitriding furnace can circulate normally, effectively reducing the wind resistance, thereby solving the problem that the quality of heat treatment is affected by excessive wind resistance.

[0015] 2. The workpiece mounting position includes a limit block and a connecting rod. Through the setting of the limit block, the workpiece is located on the connecting rod. The limit block is used for limiting the position, so that the workpiece is not easy to fall. There are two connecting rods, and the two connecting rods are arranged in a "cross" shape with the same height to improve the stability of the device. A lifting ring is provided on the center of the "cross" shape to facilitate placing the device into the nitriding furnace. A workpiece mounting position is provided on each of the four extending parts of the connecting rod, and the workpiece mounting positions are symmetrically arranged, which can improve stability and increase the number of suspended workpieces. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the workpiece suspension fixture suspension structure of the ultra-deep well nitriding furnace;

[0017] Figure 2 It is a schematic diagram of the workpiece installation position of the workpiece hanging fixture of the ultra-deep pit nitriding furnace;

[0018] Figure 3 It is a schematic diagram of the workpiece hanging fixture ring of the ultra-deep pit nitriding furnace;

[0019] Figure 4 It is a schematic diagram of the structure of the workpiece suspension fixture of the ultra-deep well nitriding furnace;

[0020] Explanation of the accompanying drawings: 1. inner ring; 2. outer ring; 3. support block; 4. connecting ring; 5. connecting rod; 6. workpiece mounting position; 601. limit block; 602. connecting rod; 7. lifting ring. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] like Figures 1 to 4 As shown, the inner ring 1 and the outer ring 2 of the utility model, a plurality of support blocks 3 are arranged between the outer wall of the inner ring 1 and the inner wall of the outer ring 2, and a suspension structure is welded on the lower surface of the inner ring 1; the suspension structure includes a connecting ring 4, the upper surface of the connecting ring 4 is concentrically welded to the lower surface of the inner ring 1, a connecting rod 5 is arranged in the connecting ring 4, both ends of the connecting rod 5 are connected to the inner wall of the connecting ring 4, and a workpiece mounting position 6 is arranged on the connecting rod 5.

[0023] The workpiece mounting position 6 comprises a limit block 601 and a connecting rod 602 . One end of the connecting rod 602 is connected to the connecting rod 5 , and the limit block 601 is connected to the other end of the connecting rod 602 . The limit block 601 is arranged in parallel with the first connecting rod 5 .

[0024] There are two connecting rods 5, which are arranged in a cross shape with the same height. A hanging ring 7 is provided on the center of the cross. A workpiece mounting position 6 is provided on each of the four extending portions of the connecting rod 5, and the four workpiece mounting positions 6 are evenly divided along the circumferential direction.

[0025] Hang the workpiece on the workpiece mounting position 6, hook the lifting ring 7 with the machine's lifting hook, slowly put it into the ultra-deep pit nitriding furnace, place the connecting ring 4 on the annular step in the furnace, remove the lifting hook, and when the device is working, the circulating air in the furnace can pass through the tooling to reduce wind resistance. After the work is completed, lift the device out and remove the workpiece.

[0026] In the description of the present utility model, it should be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In the description of the present utility model, unless otherwise specified and limited, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a mechanical connection or an electrical connection, or it can be the internal communication of two elements, it can be a direct connection, or it can be an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0027] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. The workpiece suspension fixture of the ultra-deep pit nitriding furnace is characterized by: The invention comprises an inner ring (1) and an outer ring (2), wherein a plurality of support blocks (3) are arranged between the outer wall of the inner ring (1) and the inner wall of the outer ring (2), and a suspension structure is welded on the lower surface of the inner ring (1); the suspension structure comprises a connecting ring (4), the upper surface of the connecting ring (4) is concentrically welded to the lower surface of the inner ring (1), a connecting rod (5) is arranged inside the connecting ring (4), the two ends of the connecting rod (5) are connected to the inner wall of the connecting ring (4), and a workpiece mounting position (6) is arranged on the connecting rod (5).

2. The workpiece suspension fixture for the ultra-deep pit nitriding furnace according to claim 1, characterized in that: The workpiece mounting position (6) comprises a limit block (601) and a connecting rod (602), one end of the connecting rod (602) is connected to the connecting rod (5), the limit block (601) is connected to the other end of the connecting rod (602), and the limit block (601) is arranged in parallel with the first connecting rod (5).

3. The workpiece suspension fixture for the ultra-deep pit nitriding furnace according to claim 1, characterized in that: There are two connecting rods (5), the two connecting rods (5) are of the same height and are arranged in a cross shape, and a hanging ring (7) is provided at the center of the cross shape.

4. The workpiece suspension fixture for the ultra-deep pit nitriding furnace according to claim 3, characterized in that: A workpiece mounting position (6) is provided on each of the four extended portions of the connecting rod (5), and the four workpiece mounting positions (6) are evenly distributed along the circumferential direction.

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