CN219111668U

CN219111668U - Carburizing nitriding furnace with stable air inlet structure for laboratory

Info

Publication number: CN219111668U
Application number: CN202222247537.0U
Authority: CN
Inventors: 李良; 牛嵩; 赵旺; 邵建斌; 耿军; 陈辉
Original assignee: Nanyang Xinyu New Material Technology Co ltd; Nanyang Normal University
Current assignee: Nanyang Xinyu New Material Technology Co ltd; Nanyang Normal University
Priority date: 2022-08-25
Filing date: 2022-08-25
Publication date: 2023-06-02
Anticipated expiration: 2032-08-25

Abstract

The utility model relates to the technical field of carburizing and nitriding furnaces, in particular to a carburizing and nitriding furnace with a stable air inlet structure for a laboratory. According to the utility model, the reinforcing sleeve is fixedly connected to the surface of the movable rod in an arc shape, when the motor runs to enable the screw rod to rotate, the screw sleeve can move in a vertical position under the action of the screw rod, the connecting rod can change the angle under the action of the screw sleeve to push the movable rod, the movable rod is limited by the limiting sleeve to move in a horizontal position from two ends to the middle under the action of the connecting rod, the reinforcing sleeve can be sleeved on the surface of the air inlet coil pipe under the action of the movable rod, the connection between the air inlet coil pipe and the pipeline is supported and fixed, the joint is more stable, air leakage caused by bending or falling of the joint is avoided, and the conveying of air is more stable.

Description

Carburizing nitriding furnace with stable air inlet structure for laboratory

Technical Field

The utility model relates to the technical field of carburizing and nitriding furnaces, in particular to a carburizing and nitriding furnace with a stable air inlet structure for a laboratory.

Background

The carburization is a process of making carbon atoms infiltrate into a steel surface layer, namely making a workpiece of low carbon steel have a surface layer of high carbon steel, then quenching and low-temperature tempering to make the surface layer of the workpiece have high hardness and wear resistance, while the central part of the workpiece still maintains toughness and plasticity of the low carbon steel, nitriding is a chemical heat treatment process of making nitrogen atoms infiltrate into the surface layer of the workpiece in a certain medium at a certain temperature, traditional gas nitriding is to put the workpiece into a sealed container, flowing ammonia gas is introduced and heated, after heat preservation for a long time, ammonia gas is thermally decomposed to generate active nitrogen atoms, the active nitrogen atoms are continuously adsorbed onto the surface of the workpiece and diffused into the surface layer of the workpiece, thereby changing chemical components and tissues of the surface layer to obtain excellent surface properties, and when the workpiece is subjected to carburization nitriding treatment, the carburization nitriding furnace and nitriding furnace are very mature products, and the application is relatively wide, and in a laboratory, some pipe fittings or small parts also need to be subjected to carburization and nitriding treatment, and through the arrangement of coil pipes, so that the inner surface treatment of the pipe fittings and the outer surface treatment of the pipe fittings can be achieved to the same treatment.

When processing laboratory work pieces through the carburizing nitriding furnace, need connect inlet coil pipe and pipeline, because the interface department of pipeline and inlet coil pipe does not have the object to support, can lead to joint department unstable inadequately, joint department takes place to buckle or drop easily in the use, can influence gaseous stable transport, and then influences the effect of intaking, consequently need to design a laboratory and solve above-mentioned problem with the carburizing nitriding furnace that has stable inlet structure.

Disclosure of Invention

The utility model aims to provide a carburizing nitriding furnace with a stable air inlet structure for a laboratory, which solves the problems that in the prior art, as no object is supported at the joint of a pipeline and an air inlet coil pipe, the joint is unstable, the joint is easy to bend or fall off in use, the stable conveying of air is influenced, air leakage is caused, and the air inlet effect is influenced.

In order to achieve the above purpose, the utility model provides the following technical scheme,

the carburizing nitriding furnace with the stable air inlet structure for the laboratory comprises a furnace body, wherein the furnace body comprises a heating furnace, an air inlet coil pipe is arranged on the inner side of the heating furnace, a furnace cover is arranged on the upper surface of the heating furnace, a lifter is fixedly connected to the surface of the heating furnace, and a cantilever arm is arranged on the surface of the lifter;

the surface of heating furnace is provided with protection machanism, protection machanism is including placing the board, place the surface of board fixed connection at the heating furnace, the upper surface of placing the board is provided with the motor, the fixed surface of heating furnace is fixedly connected with fixed block, the inboard swing joint of fixed block has the screw rod, screw rod fixed connection is at the output of motor, the swivel nut has been cup jointed on the surface of screw rod, the fixed surface of heating furnace is connected with the stop collar, the inboard swing joint of stop collar has the movable rod, the fixed surface of movable rod is connected with the reinforcement cover, the surface swing joint of swivel nut has the connecting rod, the one end of connecting rod is through pivot and swivel nut swing joint, the other end of connecting rod is through pivot and movable rod swing joint.

Preferably, the surface of the movable rod is provided with a sliding groove, the inner wall of the limit sleeve is fixedly connected with a sliding block, one end of the sliding block is fixedly connected with the limit sleeve, the other end of the sliding block is movably connected with the sliding groove, the sliding groove is fixedly connected with the inner wall of the limit sleeve in two groups, and the sliding block is arranged on the surface of the movable rod in two groups.

Preferably, the fixed block is two groups of fixed connection on the surface of the heating furnace, and the screw rod is in rod-shaped movable connection on the inner side of the fixed block.

Preferably, the stop collar is two sets of fixed connection at the surface of heating furnace, the reinforcement cover is two sets of and movable rod corresponding connection, the connecting rod is two sets of swing joint at the surface of swivel nut.

Preferably, the heating furnace is inboard to be provided with positioning mechanism, positioning mechanism includes first sealed pad, first sealed pad fixed connection is at the upper surface of heating furnace, the lower fixed surface of bell is connected with the second sealed pad, the lower fixed surface of bell is connected with the locating lever, the slot has been seted up to the inboard of heating furnace, the movable groove has been seted up to the inner wall of slot, the inner wall fixedly connected with spring in movable groove, the one end fixedly connected with fixture block in the movable groove is kept away from to the spring, the draw-in groove has been seted up on the surface of locating lever.

Preferably, the locating rods are four groups of locating rods fixedly connected to the lower surface of the furnace cover, the slots are four groups of locating rods and are arranged on the inner side of the heating furnace, and the springs are eight groups of locating rods and are correspondingly connected with the movable slots.

Compared with the prior art, the utility model has the beneficial effects that:

1. the reinforcing sleeve is circular arc fixed connection on the surface of movable rod, when the motor operation makes the screw rod rotate, the swivel nut can carry out vertical position under the effect of screw rod and remove, the connecting rod changes the effect that plays the promotion to the movable rod under the effect of swivel nut, the movable rod receives the spacing of stop collar can carry out horizontal position by both ends to the centre under the effect of connecting rod and remove, can realize reinforcing sleeve cup joint the surface at air inlet coil under the effect of movable rod, realize supporting fixedly air inlet coil and the connection of pipeline, make joint department more firm, can avoid joint department to take place to buckle or drop and lead to the gas leakage, make gaseous transport more stable, the entering of the gas of being convenient for, and is very practical.

2. The first sealing gasket is fixedly connected to the upper surface of the heating furnace, the second sealing gasket is fixedly connected to the lower surface of the furnace cover, when the furnace cover is covered, the first sealing gasket and the second sealing gasket are tightly attached to realize sealing, so that heat on the inner side of the heating furnace is not easy to emit, the positioning rod is fixedly connected to the lower surface of the furnace cover, the positioning rod is inserted into the inner side of the slot when the furnace cover is covered, the furnace cover can be positioned, the furnace cover is prevented from being deviated, meanwhile, the clamping block is fixedly connected to the surface of the spring, the clamping block is clamped with the clamping groove, the positioning rod can be fixed, the falling of the furnace cover can be avoided, the first sealing gasket and the second sealing gasket are attached to each other more tightly, and the operation is simple.

Drawings

FIG. 1 is a schematic elevational cross-sectional view of the structure of the present utility model;

FIG. 2 is a schematic side cross-sectional view of a portion of the screw and reinforcing sleeve of the present utility model;

FIG. 3 is an enlarged schematic view of the structure of FIG. 2A according to the present utility model;

fig. 4 is an enlarged schematic view of the structure of fig. 2B according to the present utility model.

In the figure: 1. a heating furnace; 11. an air inlet coil; 12. a furnace cover; 13. a lifter; 14. a cantilever beam arm; 2. placing a plate; 21. a motor; 22. a fixed block; 23. a screw; 24. a screw sleeve; 25. a limit sleeve; 26. a moving rod; 27. reinforcing the sleeve; 28. a connecting rod; 29. a chute; 210. a slide block; 3. a first gasket; 31. a second gasket; 32. a positioning rod; 33. a slot; 34. a movable groove; 35. a spring; 36. a clamping block; 37. a clamping groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, an embodiment of the present utility model is provided:

the carburizing nitriding furnace with the stable air inlet structure for the laboratory comprises a furnace body, wherein the furnace body comprises a heating furnace 1, an air inlet coil 11 is arranged on the inner side of the heating furnace 1, a furnace cover 12 is arranged on the upper surface of the heating furnace 1, a lifter 13 is fixedly connected to the surface of the heating furnace 1, and a cantilever arm 14 is arranged on the surface of the lifter 13;

the surface of heating furnace 1 is provided with protection machanism, protection machanism is including placing board 2, place board 2 fixed connection at the surface of heating furnace 1, the upper surface of placing board 2 is provided with motor 21, the fixed block 22 of fixed block 22's inboard swing joint has screw rod 23, screw rod 23 fixed connection is at motor 21's output, screw sleeve 24 has been cup jointed on screw rod 23's surface, the fixed surface of heating furnace 1 is connected with stop collar 25, the inboard swing joint of stop collar 25 has movable rod 26, the fixed surface of movable rod 26 is connected with reinforcement sleeve 27, the surface swing joint of screw sleeve 24 has connecting rod 28, the one end of connecting rod 28 is through pivot and movable rod 26 swing joint, connecting rod 28 swing joint is on the surface of screw sleeve 24, when the screw sleeve 24 carries out the position movement under the effect of screw rod 23, the angle of connecting rod 28 can change, the position movement is cup jointed by both ends to the centre under the effect of connecting rod 28, realize reinforcement sleeve 27 at the reinforcement surface of coil 11, can realize the reinforcement sleeve 27 and make the work piece of being convenient for carry out the steady laboratory through the connection of pivot and swivel joint, and the realization is convenient for send out the steady gas to the work piece through the realization.

Further, the surface of the movable rod 26 is provided with the sliding groove 29, the inner wall of the limit sleeve 25 is fixedly connected with the sliding block 210, one end of the sliding block 210 is fixedly connected with the limit sleeve 25, the other end of the sliding block 210 is movably connected with the sliding groove 29, the sliding groove 29 is fixedly connected with the inner wall of the limit sleeve 25, the sliding block 210 is formed into two groups on the surface of the movable rod 26, the sliding groove 29 is fixedly connected with the inner wall of the limit sleeve 25, and when the movable rod 26 moves in position under the action of the connecting rod 28, the sliding groove 29 slides on the surface of the sliding block 210 to limit the movable rod 26.

Further, the fixed block 22 is two groups of fixed connection on the surface of the heating furnace 1, the screw rod 23 is in a rod shape and is movably connected to the inner side of the fixed block 22, the screw rod 23 is movably connected to the inner side of the fixed block 22, the screw sleeve 24 is enabled to move in the vertical position through rotation of the screw rod 23, and then the angle of the connecting rod 28 is changed to push the moving rod 26, so that the moving rod 26 moves under the action of the connecting rod 28 to drive the reinforcing sleeve 27 to move, and the effect of protecting the air inlet coil 11 and the pipeline connection through the reinforcing sleeve 27 is achieved.

Further, the stop collar 25 is two sets of fixed connection on the surface of heating furnace 1, consolidates the cover 27 and is two sets of and movable rod 26 and correspond to be connected, and connecting rod 28 is two sets of swing joint on the surface of swivel nut 24, consolidates cover 27 fixed connection and makes the interval of consolidating cover 27 change when movable rod 26 removes on the surface of movable rod 26, can realize that consolidate cover 27 cup joints on the surface of air inlet coil 11, reaches the effect of supporting the connection of air inlet coil 11 and pipeline, can avoid the pipe joint to take place not hard up and lead to influencing the air inlet for the air inlet is more stable.

Further, the heating furnace 1 inboard is provided with positioning mechanism, positioning mechanism includes first sealed pad 3, first sealed pad 3 fixed connection is at the upper surface of heating furnace 1, the lower fixed surface of bell 12 is connected with the second sealed pad 31, the lower fixed surface of bell 12 is connected with locating lever 32, slot 33 has been seted up to the inboard of heating furnace 1, movable groove 34 has been seted up to the inner wall of slot 33, the inner wall fixedly connected with spring 35 of movable groove 34, the one end fixedly connected with fixture block 36 of movable groove 34 is kept away from to spring 35, draw-in groove 37 has been seted up on the surface of locating lever 32, first sealed pad 3 fixed connection is at the upper surface of heating furnace 1, second sealed pad 31 fixed connection is at the lower surface of bell 12, when covering bell 12, first sealed pad 3 and second sealed pad 31 closely laminate and can increase sealed effect for the inside heat of heating furnace 1 is difficult for giving off.

Further, the locating rod 32 is four groups of fixed connection on the lower surface of the furnace cover 12, the slot 33 is four groups of slots and is arranged on the inner side of the heating furnace 1, the spring 35 is eight groups of corresponding connection with the movable slot 34, the locating rod 32 is fixedly connected on the lower surface of the furnace cover 12, when the furnace cover 12 is covered, the locating rod 32 is inserted into the inner side of the slot 33, the locating effect on the furnace cover 12 can be achieved, the heat dissipation caused by the deviation of the furnace cover 12 can be avoided, and the treatment effect on laboratory workpieces is better.

Working principle: when the electric air intake coil is used, the output end of the motor 21 is electrically connected with the input end of an external power supply through a wire, a worker presses the switch to start the motor 21, the motor 21 operates to drive the screw 23 to rotate, the screw sleeve 24 moves downwards under the action of the screw 23, the angle of the connecting rod 28 changes in the moving process of the screw sleeve 24, the moving rod 26 moves from two ends to the middle to the horizontal position under the action of the connecting rod 28 due to the limit of the limiting sleeve 25, the sliding block 210 slides on the surface of the sliding groove 29, the distance between the reinforcing sleeve 27 and the moving rod 26 becomes small, the reinforcing sleeve 27 is sleeved on the surface of the air intake coil 11, and the connection between the air intake coil 11 and a pipeline is reinforced.

When covering bell 12, make locating lever 32 insert the inboard to slot 33, realize carrying out the location to bell 12, when the surface of locating lever 32 and the surface of fixture block 36 contact, fixture block 36 receives the extrusion and moves towards the inboard of activity groove 34, spring 35 is the shrink state this moment, cancel the extrusion to fixture block 36 at the in-process of male when locating lever 32, when fixture block 36 is faced to fixture block 37, fixture block 36 can reset under the resilience effect of spring 35, realize fixture block 36 and fixture groove 37 and carry out the block, realize spacing to locating lever 32, first sealed pad 3 and the sealed pad 31 closely laminating of second reach sealed effect this moment, it is more practical.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The carburizing nitriding furnace with the stable air inlet structure for the laboratory comprises a furnace body, wherein the furnace body comprises a heating furnace (1), an air inlet coil pipe (11) is arranged on the inner side of the heating furnace (1), a furnace cover (12) is arranged on the upper surface of the heating furnace (1), a lifter (13) is fixedly connected to the surface of the heating furnace (1), and a cantilever arm (14) is arranged on the surface of the lifter (13);

the heating furnace is characterized in that a protection mechanism is arranged on the surface of the heating furnace (1), the protection mechanism comprises a placing plate (2), the placing plate (2) is fixedly connected to the surface of the heating furnace (1), a motor (21) is arranged on the upper surface of the placing plate (2), a fixed block (22) is fixedly connected to the surface of the heating furnace (1), a screw rod (23) is movably connected to the inner side of the fixed block (22), the screw rod (23) is fixedly connected to the output end of the motor (21), a screw sleeve (24) is sleeved on the surface of the screw rod (23), a limiting sleeve (25) is fixedly connected to the surface of the heating furnace (1), a movable rod (26) is fixedly connected to the inner side of the limiting sleeve (25), a connecting rod (28) is movably connected to the surface of the screw sleeve (24), one end of the connecting rod (28) is movably connected to the other end of the connecting rod (28) through a rotating shaft and the screw sleeve (24), and the other end of the connecting rod (28) is movably connected to the movable rod (26).

2. A carburizing nitriding furnace with a stable air intake structure for laboratory use according to claim 1, wherein: the sliding chute (29) is formed in the surface of the movable rod (26), the sliding block (210) is fixedly connected to the inner wall of the limiting sleeve (25), one end of the sliding block (210) is fixedly connected with the limiting sleeve (25), the other end of the sliding block (210) is movably connected with the sliding chute (29), the sliding chute (29) is fixedly connected to the inner wall of the limiting sleeve (25) in two groups, and the sliding block (210) is formed in two groups on the surface of the movable rod (26).

3. A carburizing nitriding furnace with a stable air intake structure for laboratory use according to claim 1, wherein: the fixing blocks (22) are fixedly connected to the surface of the heating furnace (1) in two groups, and the screw rods (23) are movably connected to the inner sides of the fixing blocks (22) in a rod shape.

4. A carburizing nitriding furnace with a stable air intake structure for laboratory use according to claim 1, wherein: the stop collar (25) is two sets of fixed connection on the surface of heating furnace (1), consolidate cover (27) and be two sets of and movable rod (26) corresponding connection, connecting rod (28) are two sets of swing joint at the surface of swivel nut (24).

5. A carburizing nitriding furnace with a stable air intake structure for laboratory use according to claim 1, wherein: the utility model discloses a heating furnace, including heating furnace (1), heating furnace (1) inboard is provided with positioning mechanism, positioning mechanism includes first sealed pad (3), the upper surface at heating furnace (1) of first sealed pad (3) fixed connection, the lower fixed surface of bell (12) is connected with second sealed pad (31), the lower fixed surface of bell (12) is connected with locating lever (32), slot (33) have been seted up to the inboard of heating furnace (1), movable groove (34) have been seted up to the inner wall of slot (33), the inner wall fixedly connected with spring (35) of movable groove (34), one end fixedly connected with fixture block (36) of movable groove (34) are kept away from to spring (35), draw-in groove (37) have been seted up on the surface of locating lever (32).

6. A carburizing nitriding furnace with a stable air intake structure for laboratory use according to claim 5, wherein: the positioning rods (32) are fixedly connected to the lower surface of the furnace cover (12) in four groups, the slots (33) are formed in the inner side of the heating furnace (1) in four groups, and the springs (35) are correspondingly connected with the movable slots (34) in eight groups.