CN206529518U - Nitriding furnace - Google Patents
Nitriding furnace Download PDFInfo
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- CN206529518U CN206529518U CN201720065560.4U CN201720065560U CN206529518U CN 206529518 U CN206529518 U CN 206529518U CN 201720065560 U CN201720065560 U CN 201720065560U CN 206529518 U CN206529518 U CN 206529518U
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Abstract
The utility model discloses a kind of nitriding furnace, including furnace shell, furnace lining, flue and bell, the furnace lining is fixed on the inwall of furnace shell by anchoring piece, the flue is placed in the furnace lining, heating element heater is provided with furnace lining, the bell is covered in the upper of flue, bell is provided with ammonia air inlet, exhaust vent and thermocouple, stirring motor is installed on bell, bell is provided with motor fixing seat, the stirring motor is placed in the motor fixing seat, the rotating shaft of stirring motor is stretched into the inner chamber of flue through motor fixing seat and bell, the end of rotating shaft is provided with stirring vane, bearing is installed in the motor fixing seat, the rotating shaft of stirring motor passes through the bearing, dynamic radial seal seat is installed below bearing, dynamic radial seal filler is provided with the dynamic radial seal seat.The nitriding furnace good airproof performance.
Description
Technical field
The utility model belongs to technical field of heat treatment equipment, and in particular to a kind of nitriding furnace.
Background technology
Nitriding furnace is mainly used in the nitridings of the hardwares such as steel components, tool and mould and survey tool, multicomponent thermochemical treatment, low temperature
Austenitic nitro-carburizing, oxynitriding, vapor oxidation surface treatment, low vacuum tempering（Or timeliness）Etc. surface Hardening Treatment.Heat treatment
Nitriding furnace generally stirs furnace gas using fan so that upper, middle and lower temperature is uniform in stove, to ensure to nitrogenize quality
Unanimously.Because fan main shaft is rotary part, furnace high-temperature corrosive gas (ammonia gas mixture) is from fan main shaft and bell
Between gap on alter.Traditional packing seal pattern sealing effectiveness is poor, and bearing is easily damaged, and bearing replacing frequency of maintenance is high.
In addition, the bell of existing nitriding furnace is in installing/dismounting, there is inconvenient operation, working strength is big, and misoperation is easily caused stove
The poor sealing performance of lid, the problems such as bell is easy to fall off.Furthermore, the heat-insulating property of existing nitriding furnace is improved, nitrogen treatment energy is reduced
Consumption is also the problem of needing improvement badly.
Utility model content
Technical problem to be solved in the utility model is to overcome the shortcomings of to mention and defect in background above technology, is carried
For a kind of nitriding furnace of good airproof performance.
In order to solve the above technical problems, the utility model proposes technical scheme be：
A kind of nitriding furnace, including furnace shell, furnace lining, flue and bell, the furnace lining are fixed on the furnace shell by anchoring piece
Inwall on, the flue is placed in furnace lining, and heating element heater is provided with furnace lining, and the bell is covered in the upper of the flue, institute
Bell is stated provided with ammonia air inlet, exhaust vent and thermocouple, is provided with the bell on stirring motor, the bell
Provided with motor fixing seat, the stirring motor is placed in the motor fixing seat, and the rotating shaft of stirring motor is solid through the motor
Reservation and the bell are stretched into the inner chamber of the flue, and the end of rotating shaft is provided with stirring vane, the motor fixing seat
Bearing is installed, the rotating shaft of the stirring motor, which is passed through, is provided with dynamic radial seal seat, institute below the bearing, the bearing
State in dynamic radial seal seat and be provided with dynamic radial seal filler.
It is used as the further improvement to above-mentioned technical proposal：
It is preferred that, the lower section of the dynamic radial seal seat is provided with end face dynamic sealing seat, the lower section of the end face dynamic sealing seat
Provided with end face dynamic sealing filler.
It is furthermore preferred that the lower section of the end face dynamic sealing filler is provided with asbestos seal around the rotating shaft of the stirring motor
Pad.
It is preferred that, the nitriding furnace also includes a furnace cover lifting mechanism, and the furnace cover lifting mechanism includes frame, the machine
It is provided with frame on lift cylinder, the piston rod of the lift cylinder and is connected with the first lift chain and the second lift chain, the machine
Frame is provided with the first fixed pulley and the second fixed pulley, and first lift chain and the second lift chain are determined rotating around being located at described first
On pulley and the second fixed pulley, the lower end of first lift chain and the second lift chain is mounted on suspension rod.
It is furthermore preferred that the bottom of the frame is provided with the electric rotating machine for controlling the gantry rotation, the electric rotating machine
Rotating shaft is fixedly connected with the frame, and the side wall of the furnace shell is provided with mounting seat, and the electric rotating machine is arranged on described install
On seat.
It is furthermore preferred that the same level that first fixed pulley and the second fixed pulley are installed on the frame is highly located.
It is preferred that, the furnace lining is formed by multiple aluminosilicate refractory fiber modules through collapsible, and the thickness of furnace lining is
200-250mm。
Compared with prior art, the utility model has the advantage of：
（1）Stirring motor is arranged in motor fixing seat, bearing is set in motor fixing seat, and is pacified below bearing
Dynamic radial seal seat is filled, dynamic radial seal filler is set in dynamic radial seal seat, the sealing of the nitriding furnace is effectively improved
Property.
（2）End face dynamic sealing seat is set in the lower section of dynamic radial seal seat, end is set in the lower section of the end face dynamic sealing seat
Face dynamic sealing filler, further increases the sealing of the nitriding furnace.
（3）Furnace cover lifting mechanism is set on nitriding furnace, and the furnace cover lifting mechanism includes frame, liter is provided with frame
The first lift chain and the second lift chain are connected with sending down abnormally ascending cylinder, the piston rod of the lift cylinder, frame is provided with the first fixed pulley
With the second fixed pulley, the first lift chain and the second lift chain are rotating around being located on the first fixed pulley and the second fixed pulley, using this
The furnace cover lifting mechanism of sample can be dismounted easily to bell.
（4）Furnace lining is formed by multiple aluminosilicate refractory fiber modules through collapsible, and the thickness of furnace lining is 200-250mm,
So that the nitriding furnace has good heat insulation effect, heat treatment energy consumption is effectively reduced.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the accompanying drawing used required in description of the prior art is briefly described, it should be apparent that, drawings in the following description are these
Some embodiments of utility model, for those of ordinary skill in the art, on the premise of not paying creative work, also
Other accompanying drawings can be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the utility model nitriding furnace.
Fig. 2 is the partial enlarged drawing at A in Fig. 1.
Fig. 3 is the structural representation of furnace cover lifting mechanism in the utility model nitriding furnace.
Marginal data：
1st, furnace shell；2nd, furnace lining；3rd, flue；4th, bell；5th, heating element heater；6th, ammonia air inlet；7th, exhaust vent；8th, it is hot
Galvanic couple；11st, stirring motor；12nd, motor fixing seat；13rd, stirring vane；14th, bearing；15th, dynamic radial seal seat；16th, it is radially dynamic
Airtight and watertight padding；17th, end face dynamic sealing seat；18th, end face dynamic sealing filler；19th, asbestos seal pad；20th, furnace cover lifting mechanism；201、
Frame；202nd, lift cylinder；203rd, the first lift chain；204th, the second lift chain；205th, the first fixed pulley；206th, second is fixed sliding
Wheel；207th, suspension rod；208th, electric rotating machine；209th, mounting seat.
Embodiment
For the ease of understanding the utility model, below in conjunction with Figure of description and preferred embodiment to the utility model
Work more comprehensively, is meticulously described, but protection domain of the present utility model is not limited to embodiment in detail below.
It should be strongly noted that when a certain element, to be described as " be fixed on, be fixed in, be connected to or be communicated in " another
When on element, it can be directly fixed, affixed, connection or connect on another element or by connecting in the middle of other
Fitting is indirectly fixed, affixed, connection or connection are on another element.
Unless otherwise defined, the implication that all technical terms used hereinafter are generally understood that with those skilled in the art
It is identical.Technical term used herein is intended merely to describe the purpose of specific embodiment, is not intended to and limits this practicality
New protection domain.
Embodiment
As shown in Figure 1, Figure 2 and Figure 3, a kind of nitriding furnace of the present utility model, including furnace shell 1, furnace lining 2, flue 3 and bell
4.Wherein furnace lining 2 is fixed on by anchoring piece on the inwall of furnace shell 1, and flue 3 is placed in furnace lining 2, and heating element heater is provided with furnace lining 2
5, bell 4 is covered in the upper of flue 3.Bell 4 is provided with ammonia air inlet 6, exhaust vent 7 and thermocouple 8.Pacify on bell 4
Equipped with stirring motor 11, bell 4 is provided with motor fixing seat 12, and stirring motor 11 is placed in the motor fixing seat 12.Stirring electricity
The rotating shaft of machine 11 is stretched into the inner chamber of flue 3 through motor fixing seat 12 and bell 4, and the end of the rotating shaft is provided with stirring vane
13.Bearing 14 is installed, the rotating shaft of stirring motor 11 passes through the bearing 14 in motor fixing seat 12.The lower section of bearing 14 is provided with
Dynamic radial seal seat 15, dynamic radial seal filler 16 is provided with dynamic radial seal seat 15.Stirring motor 11 is arranged on motor
In fixed seat 12, bearing 14 is set in motor fixing seat 12, and dynamic radial seal seat 15 is installed in the lower section of bearing 14, in footpath
Dynamic radial seal filler 16 is set into dynamic sealing seat 15, the sealing of the nitriding furnace is effectively improved.
In the present embodiment, in the lower section of dynamic radial seal seat 15 provided with end face dynamic sealing seat 17, the end face dynamic sealing seat 17
Lower section be provided with end face dynamic sealing filler 18, the lower section of end face dynamic sealing filler 18 is provided with stone around the rotating shaft of stirring motor 11
Minuteness packing 19.Further increase the sealing of the nitriding furnace.
The nitriding furnace also includes a furnace cover lifting mechanism 20, and the furnace cover lifting mechanism 20 includes frame 201, in frame
It is provided with 201 on lift cylinder 202, the piston rod of lift cylinder 202 and is connected with the first lift chain 203 and the second lift chain
204, frame 201 is provided with the first fixed pulley 205 and the second fixed pulley 206.204 points of first lift chain 203 and the second lift chain
Not around being located on the fixed pulley 206 of the first fixed pulley 205 and second.In the lower end of the first lift chain 203 and the second lift chain 204
It is mounted on suspension rod 207.Pass through flexible drive the first lift chain 203 and the second lift chain 204 of the piston rod of lift cylinder 202
Bell 4 can be risen or fall by being moved respectively along the first fixed pulley 205 and the second fixed pulley 206, it is convenient to which bell 4 is carried out
Dismounting.The electric rotating machine 208 rotated in the bottom of frame 201 provided with control frame 201, the rotating shaft of the electric rotating machine 208 and machine
Frame 201 is fixedly connected, and the side wall of furnace shell 1 is provided with mounting seat 209, and electric rotating machine 208 is arranged in mounting seat 209.Pass through rotation
The rotational band motivation frame 201 of rotating motor 208 rotates to an angle, it is to avoid bell 4 is located at the surface of nitriding furnace and influenceed after rising
Pick and place workpiece.The same level that first fixed pulley 205 and the second fixed pulley 206 are installed on frame 201 is highly located so that bell 4
Lifting is more steady.The furnace lining 2 of the nitriding furnace is preferably formed by multiple aluminosilicate refractory fiber modules through collapsible, the silicic acid
The non-commercially available prod of aluminium refractory fibre；And the thickness of furnace lining 2 is preferably 200-250mm, the heat insulation effect of nitriding furnace is substantially increased,
Effectively reduce heat treatment energy consumption.
Preferred embodiment of the present utility model is the foregoing is only, the utility model is not limited to, for this
For the technical staff in field, the utility model can have various modifications and variations.It is all it is of the present utility model spirit and principle
Within, any modification, equivalent substitution and improvements made etc. should be included within protection domain of the present utility model.
Claims (7)
1. a kind of nitriding furnace, including furnace shell（1）, furnace lining（2）, flue（3）And bell（4）, the furnace lining（2）It is solid by anchoring piece
It is scheduled on the furnace shell（1）Inwall on, the flue（3）It is placed in furnace lining（2）It is interior, furnace lining（2）It is interior to be provided with heating element heater（5）, institute
State bell（4）Cover in the flue（3）Upper, the bell（4）It is provided with ammonia air inlet（6）, exhaust vent（7）With
Thermocouple（8）, the bell（4）On stirring motor is installed（11）, it is characterised in that：The bell（4）It is solid provided with motor
Reservation（12）, the stirring motor（11）It is placed in the motor fixing seat（12）On, stirring motor（11）Rotating shaft through described
Motor fixing seat（12）With the bell（4）Stretch into the flue（3）Inner chamber in, the end of rotating shaft is provided with stirring vane
（13）, the motor fixing seat（12）On bearing is installed（14）, the stirring motor（11）Rotating shaft pass through the bearing
（14）, the bearing（14）Lower section be provided with dynamic radial seal seat（15）, the dynamic radial seal seat（15）It is interior to be provided with radially
Dynamic sealing filler（16）.
2. nitriding furnace according to claim 1, it is characterised in that：The dynamic radial seal seat（15）Lower section be provided with end face
Dynamic sealing seat（17）, the end face dynamic sealing seat（17）Lower section be provided with end face dynamic sealing filler（18）.
3. nitriding furnace according to claim 2, it is characterised in that：The end face dynamic sealing filler（18）Lower section around institute
State stirring motor（11）Rotating shaft be provided with asbestos seal pad（19）.
4. nitriding furnace according to claim 1, it is characterised in that：The nitriding furnace also includes a furnace cover lifting mechanism
（20）, the furnace cover lifting mechanism（20）Including frame（201）, the frame（201）On lift cylinder is installed（202）, institute
State lift cylinder（202）Piston rod on be connected with the first lift chain（203）With the second lift chain（204）, the frame（201）
It is provided with the first fixed pulley（205）With the second fixed pulley（206）, first lift chain（203）With the second lift chain（204）Point
Not around being located at first fixed pulley（205）With the second fixed pulley（206）On, first lift chain（203）With the second lifting
Chain（204）Lower end be mounted on suspension rod（207）.
5. nitriding furnace according to claim 4, it is characterised in that：The frame（201）Bottom provided with controlling the machine
Frame（201）The electric rotating machine of rotation（208）, the electric rotating machine（208）Rotating shaft and the frame（201）It is fixedly connected, institute
State furnace shell（1）Side wall be provided with mounting seat（209）, the electric rotating machine（208）Installed in the mounting seat（209）On.
6. nitriding furnace according to claim 4, it is characterised in that：First fixed pulley（205）With the second fixed pulley
（206）It is installed on the frame（201）Same level highly locate.
7. the nitriding furnace according to any one of claim 1-6, it is characterised in that：The furnace lining（2）By multiple alumina silicate
Fire-proof fiber module is formed through collapsible, furnace lining（2）Thickness be 200-250mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720065560.4U CN206529518U (en) | 2017-01-19 | 2017-01-19 | Nitriding furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720065560.4U CN206529518U (en) | 2017-01-19 | 2017-01-19 | Nitriding furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206529518U true CN206529518U (en) | 2017-09-29 |
Family
ID=59917438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720065560.4U Active CN206529518U (en) | 2017-01-19 | 2017-01-19 | Nitriding furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206529518U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109442217A (en) * | 2018-12-17 | 2019-03-08 | 江苏丰东热技术有限公司 | It is a kind of to nitrogenize two-way feeder and the two-way air supply system of nitridation |
| CN113294520A (en) * | 2020-02-24 | 2021-08-24 | 重庆欣天利智能重工有限公司 | Sealing device for vacuum furnace |
-
2017
- 2017-01-19 CN CN201720065560.4U patent/CN206529518U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109442217A (en) * | 2018-12-17 | 2019-03-08 | 江苏丰东热技术有限公司 | It is a kind of to nitrogenize two-way feeder and the two-way air supply system of nitridation |
| CN113294520A (en) * | 2020-02-24 | 2021-08-24 | 重庆欣天利智能重工有限公司 | Sealing device for vacuum furnace |
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