Nitriding treatment equipment for large crankshaft

Abstract

The utility model relates to the technical field of crankshaft machining equipment, and discloses large crankshaft nitriding equipment which comprises a nitriding instrument, a machining groove is formed between the front side wall and the rear side wall of one end of the nitriding instrument, a nitriding mechanism is arranged in the middle of the other end in the machining groove, and a limiting seat is fixedly connected to the middle of the top wall in the machining groove. The lower portions of the front side wall and the rear side wall of the limiting base are each provided with a set of limiting grooves, and the multiple limiting grooves in one set are horizontally arranged at equal intervals. According to the utility model, the limiting seat is arranged in the middle of the inner top wall of the processing groove for nitriding the large crankshaft, the front end and the rear end of the processing groove are respectively provided with a group of a plurality of limiting grooves, and the supporting frame mechanisms are arranged in the limiting grooves in a sliding manner, so that a large crankshaft to be nitrided can be fixed by a single supporting frame mechanism; a plurality of large crankshafts can be arranged in the machining groove at a time, centralized large crankshaft nitriding treatment work is carried out, and large crankshaft nitriding treatment in batches is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of crankshaft processing equipment, in particular to large-scale crankshaft nitriding processing equipment. Background Art

[0002] Nitriding is a chemical heat treatment process that allows nitrogen atoms to penetrate into the surface of a workpiece in a certain medium at a certain temperature. Products that have been nitrided have excellent wear resistance, fatigue resistance, corrosion resistance, and high temperature resistance. The crankshaft is one of the important parts in an internal combustion engine. It is the backbone of the engine and a key part that bears impact loads and transmits power. Large crankshaft nitriding equipment is used in its production and processing.

[0003] The utility model with prior art publication number CN218755985U relates to a support frame for crankshaft nitriding treatment, including a frame body and a connecting device for vertically lifting the crankshaft body. The frame body keeps the crankshaft body in a vertical state to avoid accidental tipping of the crankshaft body during nitriding treatment.

[0004] However, the above device still has the following problems when used: when it is used in conjunction with large-scale crankshaft nitriding treatment equipment, it is designed as a single fixed large-scale crankshaft fixed support frame structure, and the support frame is fixedly installed in the large-scale crankshaft nitriding treatment instrument, and can only process a single large crankshaft. It is inconvenient to carry out batch nitriding treatment of large crankshafts. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides large-scale crankshaft nitriding treatment equipment, which solves the problems raised by the background technology.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: large-scale crankshaft nitriding treatment equipment, including a nitriding treatment instrument, a processing groove is opened between the front and rear side walls at one end of the nitriding treatment instrument, a nitriding treatment mechanism is arranged in the middle of the other end of the processing groove, a limiting seat is fixedly connected to the middle position of the top wall in the processing groove, a group of limiting grooves is opened below the front and rear side walls of the limiting seat, a group of limiting grooves is multiple and is arranged horizontally equidistantly, a limiting block is slidably connected in the limiting groove, one end of the bottom wall of the limiting block is fixedly connected to a sliding sleeve, a sliding rod is slidably installed in the sliding sleeve, a tray is fixedly connected to the bottom end of the sliding rod, and the tray and the limiting block on the corresponding side are arranged symmetrically in the upper and lower directions.

[0009] As a further solution of the utility model: a thread groove is provided on the outer side wall of one end of the sliding sleeve, and a locking screw is threadedly connected in the thread groove, and the screw rod of the locking screw is fastened to the sliding rod on the corresponding side thereof.

[0010] As a further solution of the utility model: the tray is fixedly connected with an anti-sliding block at the center position of the side wall facing the upper limit block thereof.

[0011] As a further solution of the utility model: a hinge is fixedly installed at the upper openings at both ends of the front side of the processing groove, and the rotating end of the hinge is fixedly connected to a sealing cover. A through groove is opened in the middle of the sealing cover, and an observation window is fixedly installed in the through groove. Two handles are fixedly connected to the lower side walls of the two sealing covers on one side away from each other.

[0012] As a further solution of the utility model: a connection interface is arranged at the lower part of the other end of the nitriding treatment instrument, a support is fixedly connected to each of the four corners of the bottom wall of the nitriding treatment instrument, a display screen is arranged at the upper part of the front side of the other end of the nitriding treatment instrument, and a control panel is arranged at the lower part of the front side of the other end of the nitriding treatment instrument.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. In the utility model, a limit seat is arranged in the middle of the top wall of the processing groove for nitriding of a large crankshaft, and a group of multiple limit slots are respectively opened at the front and rear ends, and a support frame mechanism is slidably installed therein. A single support frame mechanism can fix a large crankshaft to be nitrided, and multiple large crankshafts can be arranged in the processing groove at one time, and concentrated nitriding of large crankshafts can be carried out, which is conducive to nitriding of large crankshafts in batches.

[0015] 2. In the utility model, the processing groove for nitriding the large crankshaft is designed to be front and rear open, and a sealing cover is rotatably provided at the openings at the front and rear ends, which can seal the front and rear openings of the processing groove, and can be independently disassembled and assembled by two operators through the front and rear openings of the processing groove, that is, the installation and disassembly of the support frame mechanism and the large crankshaft thereon is convenient and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an overall three-dimensional diagram of the utility model;

[0017] Figure 2 This is a three-dimensional diagram of the utility model with the front and rear covers removed as a whole;

[0018] Figure 3 This is a three-dimensional diagram of the utility model with the front and rear covers and the support frame mechanism removed as a whole.

[0019] In the figure: 1. nitriding treatment instrument; 2. processing groove; 3. hinge; 4. sealing cover; 5. support; 6. connection interface; 7. nitriding treatment mechanism; 8. limit seat; 9. limit groove; 10. limit block; 11. sliding sleeve; 12. sliding rod; 13. tray; 14. anti-sliding block; 15. observation window; 16. handle; 17. display screen; 18. control panel. DETAILED DESCRIPTION

[0020] 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.

[0021] It should be noted that the nitriding treatment apparatus 1 and the nitriding treatment mechanism 7 thereon are prior arts and are common knowledge to those skilled in the art, and will not be described in detail herein.

[0022] See also Figures 1 to 3 In the embodiment of the utility model, a large crankshaft nitriding treatment equipment includes a nitriding treatment instrument 1, a processing groove 2 is opened between the front and rear side walls at one end of the nitriding treatment instrument 1, a nitriding treatment mechanism 7 is arranged in the middle of the other end of the processing groove 2, a limited seat 8 is fixedly connected to the middle position of the top wall in the processing groove 2, and a group of limited grooves 9 are opened below the front and rear side walls of the limited seat 8, a group of limited grooves 9 is multiple and is arranged in a horizontal equidistant shape, a limited block 10 is slidably connected in the limited groove 9, one end of the bottom wall of the limited block 10 is fixedly connected to a sliding sleeve 11, and a sliding sleeve 11 is slidably arranged in the sliding sleeve 11. A slide bar 12 is provided, a tray 13 is fixedly connected to the bottom end of the slide bar 12, the tray 13 and the limit block 10 on the corresponding side are arranged symmetrically in the upper and lower shapes, a limit seat 8 is arranged in the middle position of the top wall of the processing groove 2 for nitriding treatment of the large crankshaft, and a group of multiple limit grooves 9 are respectively opened at the front and rear ends, and a support frame mechanism is slidably installed therein, and a single support frame mechanism can fix a large crankshaft to be nitrided, and multiple large crankshafts can be arranged in the processing groove 2 at one time, and concentrated large crankshaft nitriding treatment work can be carried out, which is conducive to batch nitriding treatment of large crankshafts.

[0023] A threaded groove is provided on the outer wall of one end of the sliding sleeve 11, and a locking screw is connected to the thread in the threaded groove. The screw rod of the locking screw is fastened to the sliding rod 12 on the corresponding side. The length of the sliding rod 12 extending from the sliding sleeve 11 can be adjusted by loosening the locking screw. After the adjustment is completed, the locking screw can be tightened to achieve the limited fixation of the adjusted sliding rod 12.

[0024] The tray 13 is fixedly connected to a center position of a side wall facing the upper limit block 10 thereof with an anti-sliding block 14 , and the large crankshaft to be nitrided can be clamped and fixed by the two anti-sliding blocks 14 .

[0025] A hinge 3 is fixedly installed at the upper openings at both ends of the front side of the processing groove 2, and a sealing cover 4 is fixedly connected to the rotating end of the hinge 3. A through groove is opened in the middle of the sealing cover 4, and an observation window 15 is fixedly installed in the through groove, so that the inside of the processing groove 2 can be observed. Two handles 16 are fixedly connected to the lower side walls of the two sealing covers 4 on the side away from each other, and the two handles 16 can be held to pull the sealing cover 4. The processing groove 2 of the large crankshaft nitriding treatment is designed with front and rear openings, and a sealing cover 4 is rotatably provided at the openings at the front and rear ends, which can seal the front and rear openings of the processing groove 2, and can be independently disassembled and assembled by two operators from the front and rear openings of the processing groove 2, that is, the installation and disassembly of the support frame mechanism and the large crankshaft thereon is more convenient and efficient.

[0026] A connection interface 6 is provided at the bottom of the other end of the nitriding treatment instrument 1, and the connection arrangement of the instrument wire can be carried out. A support 5 is fixedly connected to each of the four corners of the bottom wall of the nitriding treatment instrument 1, and the support placement arrangement of the instrument body can be carried out. A display screen 17 is provided at the top of the front side of the other end of the nitriding treatment instrument 1, and a control panel 18 is provided at the bottom of the front side of the other end of the nitriding treatment instrument 1, and the control feedback of the instrument can be carried out.

[0027] The working principle of the utility model is as follows: a limit seat 8 is arranged in the middle position of the top wall of the processing groove 2 for nitriding treatment of a large crankshaft, and a group of multiple limit grooves 9 are respectively opened at the front and rear ends, and a support frame mechanism is slidably installed therein, and a single support frame mechanism can fix a large crankshaft to be nitrided, and multiple large crankshafts can be arranged in the processing groove 2 at one time, and the nitriding treatment instrument 1 and the nitriding treatment mechanism 7 thereon can work, and then centralized nitriding treatment of large crankshafts is carried out, which is beneficial to the nitriding treatment of large crankshafts in batches. In addition, the processing groove 2 for nitriding treatment of the large crankshaft is designed with front and rear openings, and a sealing cover 4 is rotatably arranged at the openings at the front and rear ends, which can seal the front and rear openings of the processing groove 2, and can be independently disassembled and assembled by two operators from the front and rear openings of the processing groove 2, that is, the installation and disassembly of the support frame mechanism and the large crankshaft thereon is relatively convenient and efficient.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. Large crankshaft nitriding equipment, including nitriding equipment (1); Features: A processing groove (2) is provided between the front and rear side walls at one end of the nitriding treatment instrument (1); a nitriding treatment mechanism (7) is provided in the middle of the other end of the processing groove (2); and a limit seat (8) is fixedly connected to the middle position of the top wall of the processing groove (2); A group of limit grooves (9) are respectively provided below the front and rear side walls of the limit seat (8), wherein a group of limit grooves (9) is a plurality of limit grooves (9) which are arranged horizontally and equidistantly, and a limit block (10) is slidably connected in the limit grooves (9); A sliding sleeve (11) is fixedly connected to one end of the bottom wall of the limit block (10), a sliding rod (12) is slidably mounted in the sliding sleeve (11), a tray (13) is fixedly connected to the bottom end of the sliding rod (12), and the tray (13) and the limit block (10) on the corresponding side are arranged in a vertically symmetrical shape.

2. The large crankshaft nitriding treatment equipment according to claim 1, characterized in that: A thread groove is formed on the outer wall of one end of the sliding sleeve (11), and a locking screw is threadedly connected in the thread groove, and the screw rod of the locking screw is fastened to the sliding rod (12) on the corresponding side thereof.

3. The large crankshaft nitriding treatment equipment according to claim 1, characterized in that: The tray (13) is fixedly connected to an anti-sliding block (14) at the center of the side wall facing the upper limit block (10).

4. The large crankshaft nitriding treatment equipment according to claim 1, characterized in that: A hinge (3) is fixedly mounted at each of the upper openings at both ends of the front side of the processing groove (2), and a sealing cover (4) is fixedly connected to the rotating end of the hinge (3).

5. The large crankshaft nitriding treatment equipment according to claim 4, characterized in that: A through slot is provided in the middle of the sealing cover (4), and an observation window (15) is fixedly installed in the through slot. Two handles (16) are fixedly connected to the lower sides of the side walls of the two sealing covers (4) that are separated from each other.

6. The large crankshaft nitriding treatment equipment according to claim 1, characterized in that: A connection interface (6) is provided below the other end of the nitriding treatment apparatus (1), and a support (5) is fixedly connected to each of the four corners of the bottom wall of the nitriding treatment apparatus (1).

7. The large crankshaft nitriding treatment equipment according to claim 1, characterized in that: A display screen (17) is arranged above the front side of the other end of the nitriding treatment instrument (1), and a control panel (18) is arranged below the front side of the other end of the nitriding treatment instrument (1).

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