CN218291081U

CN218291081U - Improved gas nitriding furnace

Info

Publication number: CN218291081U
Application number: CN202221517149.3U
Authority: CN
Inventors: 樊佳麟
Original assignee: Kepin Suzhou Special Steel Co ltd
Current assignee: Kepin Suzhou Special Steel Co ltd
Priority date: 2022-06-17
Filing date: 2022-06-17
Publication date: 2023-01-13
Anticipated expiration: 2032-06-17

Abstract

The utility model discloses an improved gas nitriding furnace, which comprises a bottom plate, a valve mechanism and a hydraulic column, wherein a shell is fixedly connected above the bottom plate, a heat insulation plate is arranged inside the shell, a heating plate is arranged inside the heat insulation plate, one side of the shell, which is penetrated through by the valve mechanism, is fixedly connected with the valve mechanism, one end of the valve mechanism penetrates through the heat insulation plate and extends into a cavity inside the shell, the other end, which is far away from the shell, of the valve mechanism is fixedly connected with an air inlet, a fixed plate is welded above the hydraulic column, the hydraulic column is welded on convex plates at two sides of the shell, and one side of the fixed plate is fixedly connected with a cover plate; the utility model discloses be provided with heated board and hot plate, be provided with the round heated board through the shell inner wall for the material is heated more even, and one side of heated board is provided with the round hot plate simultaneously, makes of a specified duration that the heat exists, and the heat preservation time is longer, and the efficiency of heating is more high, makes nitriding furnace device heat more save time.

Description

Improved gas nitriding furnace

Technical Field

The utility model relates to a nitriding furnace technical field specifically is a gaseous nitriding furnace of improved type.

Background

The nitriding furnace is a common device used for processing metal workpieces and improving the surface quality of the workpieces, and can be divided into a gas nitriding furnace and an ion nitriding furnace according to different processing modes.

Through massive search, the typical nitriding furnace device in the prior art is found to be as disclosed in the following: CN 216129658U's a well formula gas nitriding furnace, heating mechanism 3 includes tube-shape shell 31 and the intermediate layer 32 of setting in tube-shape shell 31, the intermediate layer 32 inside evenly is provided with heating pipe 33, nitriding furnace body 2 suspends in heating mechanism 3 and the clearance between nitriding furnace body 2 and heating mechanism 3 is even, heating mechanism 3 is fixed on rotary mechanism 4, rotary mechanism 4 can drive heating mechanism 3 and revolve around nitriding furnace body 2, rotary mechanism 4 sets up on vibration damping mount 5, but still there is certain defect in this technique, and under different temperatures, nitrogen consumption speed is different, control inlet air speed can more accurate nitrogen gas volume, reduce the waste, do not have the heat preservation, the heat easily runs off, the energy consumption is more, and the heat yield is little, and poor leakproofness material surface can form the oxidation color, and the material can not reach the requirement.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a gaseous nitriding furnace of improved generation to the inefficiency of the heating that provides in solving above-mentioned background art does not set up the heat preservation, and the heat easily runs off, does not have the controlling means to gas entry speed and time, the poor problem of leakproofness.

In order to achieve the above purpose, the utility model provides a following technical scheme: an improved gas nitriding furnace comprises a bottom plate, a valve mechanism and a hydraulic column,

the top fixedly connected with shell of bottom plate, and the internally mounted of shell has the heated board, the inside of heated board is provided with the hot plate, valve mechanism runs through one side of shell rather than fixed connection, and valve mechanism's one end runs through heated board and hot plate and extends to the inside cavity of shell simultaneously, and valve mechanism keeps away from the one end fixed connection air inlet of shell, the top welding of hydraulic pressure post has the fixed plate, and the welding of hydraulic pressure post is on the flange of shell both sides, one side fixedly connected with apron of fixed plate, and the apron is run through by the bolt, bolt threaded connection has the apron.

Preferably, the inner wall of the shell is provided with a heat insulation plate in a circle, and a heating plate is arranged on one heat insulation side of the heat insulation plate.

Preferably, the valve mechanism comprises a pipeline, a hemispherical baffle, a first gear and a second gear, the hemispherical baffle is rotatably connected inside the pipeline, the upper end of the hemispherical baffle is fixedly connected with the first gear, and one side of the first gear is meshed with the second gear.

Preferably, the maximum radius of the hemispherical baffle is the same as the radius of the inner wall of the pipeline in size, and the second gear is rotatably connected with the raised cavity of the pipeline.

Preferably, two fixing plates are arranged on the side face of the cover plate, and the fixing plates and the hydraulic columns are vertically arranged.

Preferably, one side of the cover plate close to the shell is provided with a circular groove, and the size of the circular groove on the cover plate is matched with the size of the barrel opening protruded from the upper end of the shell.

Preferably, a threaded passage matched with the bolt is formed in the shell of the shell, and the bolt and the shell are vertically arranged.

Through adopting above-mentioned technical scheme, realize more even heating, it is effectual to keep warm simultaneously, can control the speed that gaseous got into the shell simultaneously, makes things convenient for gaseous the entering simultaneously for open more light of shell, the leakproofness is better simultaneously.

Compared with the prior art, the beneficial effects of the utility model are that: the nitriding furnace device has the advantages of more uniform material processing, higher processing speed, more direct control of gas inlet speed and time, better gas tightness of nitriding furnace and higher safety.

(1) Be provided with heated board and hot plate, be provided with the round heated board through the shell inner wall for the material is heated more evenly, and one side of heated board is provided with the round hot plate simultaneously, makes being of a specified duration that the heat exists, and the heat preservation time is longer, and the efficiency of heating is higher, makes more save time that the nitriding furnace device heating got up.

(2) Be provided with hydraulic pressure post, fixed plate and bolt for control the fixed plate through the hydraulic pressure post, play the lifting and reduce the effect of apron, the rotatory bolt of rethread, thereby carry out further fixed plate, make the apron fixed more stable, make simultaneously nitriding furnace device leakproofness better.

Drawings

Fig. 1 is a front view of the present invention;

FIG. 2 is a schematic sectional view of the present invention;

fig. 3 is a schematic structural view of the valve mechanism of the present invention;

fig. 4 is a schematic structural diagram of the fixing plate, the cover plate and the bolt of the present invention.

In the figure: 1. the bottom plate, 2, shell, 3, heated board, 4, hot plate, 5, valve mechanism, 501, pipeline, 502, hemisphere baffle, 503, first gear, 504, second gear, 6, air inlet, 7, hydraulic pressure post, 8, fixed plate, 9, apron, 10, bolt.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: improved gas nitriding furnace

The first embodiment;

so that the material is heated more uniformly and has better heat preservation.

According to fig. 1 and 2, a shell 2 is fixedly connected to the upper side of the bottom plate 1, a heat insulation plate 3 is installed inside the shell 2, and a heating plate 4 is arranged inside the heat insulation plate 3.

Preferably, the inner wall of the shell 2 is provided with a heat insulation plate 3 in a circle, and a heating plate 4 is arranged on one heat insulation side of the heat insulation plate 3.

2 inner walls of shell are provided with round heated board 3 for to the better of heat preservation, reduce the heat waste, the setting of hot plate 4 makes the more even of heating.

Example two;

the present embodiment is further described in the above embodiments, and it should be understood that the present embodiment includes all the technical features described above and is further specifically described.

To achieve control of gas entry rate and time.

According to fig. 1-3, the valve mechanism 5 penetrates one side of the housing 2 and is fixedly connected to the housing, while one end of the valve mechanism 5 penetrates the insulation board 3 and the heating board 4 and extends into the cavity inside the housing 2, and one end of the valve mechanism 5 far away from the housing 2 is fixedly connected to the air inlet 6.

The valve mechanism 5 comprises a pipeline 501, a hemispherical baffle plate 502, a first gear 503 and a second gear 504, wherein the hemispherical baffle plate 502 is rotatably connected inside the pipeline 501, the first gear 503 is fixedly connected to the upper end of the hemispherical baffle plate 502, and the second gear 504 is meshed with one side of the first gear 503.

Specifically, the maximum radius of the hemispherical baffle 502 is the same as the radius of the inner wall of the pipe 501, and the second gear 504 is rotatably connected with the convex cavity of the pipe 501.

When gas is required to be introduced, the first gear 503 is driven to rotate by rotating the second gear 504, because the first gear 503 and the hemispherical baffle 502 are fixedly connected, the hemispherical baffle 502 rotates simultaneously, and because the maximum radius of the hemispherical baffle 502 is the same as the radius of the inner wall of the pipeline 501, when the hemispherical baffle 502 rotates but not at the maximum radius, the gas can pass through the pipeline 501, the gas inlet speed can be controlled by controlling the rotating angle of the hemispherical baffle 502, and meanwhile, the time for introducing the gas can be controlled by manually controlling the second gear 504.

Example three;

In order to open and close the nitriding furnace more easily, and the sealing performance is better.

As shown in fig. 1, 2 and 4, a fixing plate 8 is welded above the hydraulic column 7, the hydraulic column 7 is welded on the convex plates at two sides of the housing 2, a cover plate 9 is fixedly connected to one side of the fixing plate 8, the cover plate 9 is penetrated by a bolt 10, and the bolt 10 is in threaded connection with the cover plate 9.

Specifically, the side of apron 9 is provided with two fixed plates 8, and sets up perpendicularly between fixed plate 8 and the hydraulic pressure post 7, and one side that apron 9 is close to shell 2 is provided with circular recess, and the size of circular recess is identical with the size of shell 2 upper end protrusion bung hole on the apron 9, is equipped with the screw thread passageway that matches with bolt 10 in the casing of shell 2, sets up perpendicularly between bolt 10 and the shell 2.

When the nitriding furnace is opened to needs, rotatory bolt 10, make bolt 10 and screw thread passageway disconnect-type, rethread hydraulic pressure post 7 drives fixed plate 8 and carries out the lifting, thereby open the nitriding furnace, when needs closed nitriding furnace, it is downward to drive fixed plate 8 through hydraulic pressure post 7 earlier, thereby make apron 9 descend, rethread rotatory bolt 10 stretches into and carries out further fixed apron 9 in the screw thread passageway, thereby realize inseparabler closed nitriding furnace, the use of hydraulic pressure post 7, make lifting and the light of descending apron 9 more, bolt 10's setting makes the better of nitriding furnace leakproofness.

During the use, through rotatory second gear 504, drive first gear 503 and rotate, make when hemisphere baffle 502 rotates not maximum radius, nitrogen gas can pass through pipeline 501, let in nitrogen gas from air inlet 6, make nitrogen gas get into in the shell 2, through the angle of control hemisphere baffle 502, control nitrogen gas admission speed is suitable, after the volume of emiting is suitable, put into the material and put into shell 2, through hydraulic column 7 pulling fixed plate 8, play the effect of decline apron 9, rethread rotatory bolt 10, go on further fixed cover plate 9, thereby carry out closed nitriding furnace, heat through hot plate 4, heated board 3 has guaranteed that the heat can be fully utilized, when need not emit into nitrogen gas, through rotatory second gear 504, make hemisphere baffle 502 rotate to maximum radius, thereby closed pipeline 501, after the heating, through rotatory bolt 10, take off bolt 10 and remove fixed cover plate 9, rethread hydraulic column 7 fixed plate 8, it can to wait to the temperature suitable lifting material of taking out.

The terms "central," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for ease of description, but are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the scope of the invention.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. An improved gas nitriding furnace, which comprises a bottom plate (1), a valve mechanism (5) and a hydraulic column (7), and is characterized in that: the top fixedly connected with shell (2) of bottom plate (1), and the internally mounted of shell (2) has heated board (3), the inside of heated board (3) is provided with hot plate (4), valve mechanism (5) run through one side of shell (2) rather than the one end of fixed connection valve mechanism (5) simultaneously run through heated board (3) and hot plate (4) extend to shell (2) inside cavity in, and valve mechanism (5) keep away from one end fixed connection air inlet (6) of shell (2), the top welding of hydraulic pressure post (7) has fixed plate (8), and hydraulic pressure post (7) welding is on the flange of shell (2) both sides, one side fixedly connected with apron (9) of fixed plate (8), and apron (9) are run through by bolt (10), bolt (10) threaded connection has apron (9).

2. An improved gas nitriding furnace according to claim 1, characterized in that: the inner wall of the shell (2) is provided with a heat insulation plate (3) in a circle, and a heating plate (4) is arranged on one heat insulation side of the heat insulation plate (3).

3. An improved gas nitriding furnace according to claim 1, characterized in that: the valve mechanism (5) comprises a pipeline (501), a hemispherical baffle (502), a first gear (503) and a second gear (504), wherein the hemispherical baffle (502) is connected to the pipeline (501) in a rotating mode, the upper end of the hemispherical baffle (502) is fixedly connected with the first gear (503), and the second gear (504) is connected to one side of the first gear (503) in a meshed mode.

4. An improved gas nitriding furnace according to claim 3, characterized in that: the maximum radius of the hemispherical baffle (502) is the same as the radius of the inner wall of the pipeline (501), and the second gear (504) is rotationally connected with the convex cavity of the pipeline (501).

5. An improved gas nitriding furnace according to claim 1, characterized in that: two fixing plates (8) are arranged on the side face of the cover plate (9), and the fixing plates (8) and the hydraulic columns (7) are vertically arranged.

6. An improved gas nitriding furnace according to claim 1, characterized in that: a circular groove is formed in one side, close to the shell (2), of the cover plate (9), and the size of the circular groove in the cover plate (9) is matched with the size of the barrel opening protruding from the upper end of the shell (2).

7. An improved gas nitriding furnace according to claim 1, characterized in that: a thread channel matched with the bolt (10) is arranged in the shell of the shell (2), and the bolt (10) and the shell (2) are vertically arranged.