CN219735989U - Heat treatment furnace with protection structure - Google Patents

Abstract

The utility model relates to a heat treatment furnace with a protective structure, which comprises a substrate, wherein the upper surface of the substrate is provided with a heat treatment furnace body, the upper surface of the heat treatment furnace body is provided with a flow guiding mechanism, the inside of the heat treatment furnace body is provided with at least two heating pipes, the front surface of the heat treatment furnace body is hinged with a furnace door through a hinge bracket, and the upper surface of the substrate is provided with a limiting mechanism. This heat treatment furnace with protective structure has set up guiding mechanism in this heat treatment furnace with protective structure, through mutually supporting between each structure in the guiding mechanism, through setting up air guide pump, intake pipe, gas collecting channel and circulating pipe, inside high temperature gas reentrant heat treatment furnace body's inside through intake pipe and circulating pipe when opening the furnace gate, prevent that the inside high temperature gas of heat treatment furnace body from surging out burn operating personnel, guarantee the security of fire door operating personnel operation, improved the protection effect of this heat treatment furnace.

Description

Heat treatment furnace with protection structure

Technical Field

The utility model relates to the technical field of heat treatment furnaces, in particular to a heat treatment furnace with a protection structure.

Background

The heat treatment furnace is an electric furnace or a fuel furnace for heating furnace materials in heat treatment, a common heat treatment furnace comprises a box-type resistance furnace, a well-type resistance furnace, a gas carburizing furnace, a salt bath furnace and the like, a continuous furnace is generally used, workpieces are continuously loaded from a charging door and continuously unloaded from a discharging door through a hearth, the common conveying mode in the furnace is that the workpieces are loaded on a heat-resistant steel guide rail and are conveyed by a stepping movable beam or a pushing rod, and in recent years, the conveying mode of a heat-resistant steel conveying belt is gradually adopted, so that the heat treatment operation is more reasonable, and the possibility of automation and unmanned management of the heat treatment process is greatly increased.

In chinese patent CN211112127U, disclosed a tool steel heat treatment furnace, including the protective housing, the inner wall fixedly connected with stopper of protective housing, one side fixedly connected with heat treatment furnace body of stopper, the inner wall fixedly connected with locking storehouse of protective housing, the inner wall swing joint in locking storehouse has the locking piece, the constant head tank has been seted up to the outer wall of locking piece, the inner wall fixedly connected with spring of constant head tank, the outer wall fixedly connected with hinge of protective housing, the protective housing has the bin gate through hinge swing joint, this tool steel heat treatment furnace, can reach the effectual purpose of this tool steel heat treatment furnace protection, avoided in use to bring the threat to staff's personal safety, the emergence of accident has been avoided, simultaneously also made things convenient for staff's work, staff's work efficiency has been improved, the poor problem of general heat treatment furnace protection effect has been solved, thereby very big facility has been brought for people's work and life.

The utility model provides a heat treatment furnace with protective structure, which is provided with a protection shell, a limiting block, a heat treatment furnace body, a locking bin, a locking block, a bin gate and a blocking block, wherein the protection shell, the limiting block, the heat treatment furnace body, the locking bin, the locking block, the bin gate and the blocking block are matched with each other for use, the purpose of good protection effect of the tool steel heat treatment furnace can be achieved, threat to personal safety of staff in use is avoided, accidents are avoided, but the fact that the internal air has extremely high contrast with the external air temperature when the heat treatment furnace is opened is not considered, the internal air pressure of the heat expansion and contraction furnace body is higher than the external air due to the fact that the internal air pressure of the furnace body is too high, and when the heat treatment furnace is opened, the internal high-temperature gas rapidly gushes out from the inside of the furnace body, so that the operator at the furnace mouth is easy to scald due to the high-temperature gas gush.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides the heat treatment furnace with the protection structure, which has the advantage of good protection effect, and solves the problems that when the heat treatment furnace is opened, the temperature of air in the heat treatment furnace is greatly contrasted with the temperature of air outside, the air temperature in the heat expansion and cold contraction furnace body is overhigh, the air pressure in the furnace body is higher than that of the air outside, the high-temperature air in the furnace body rapidly gushes out from the inside of the furnace body when the heat treatment furnace is opened, and a great amount of high-temperature air gushes out to easily cause scalding of operators at the furnace mouth.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the heat treatment furnace with the protection structure comprises a substrate, wherein the upper surface of the substrate is provided with a heat treatment furnace body, the upper surface of the heat treatment furnace body is provided with a diversion mechanism, the inside of the heat treatment furnace body is provided with at least two heating pipes, the front surface of the heat treatment furnace body is hinged with a furnace door through a hinge bracket, and the upper surface of the substrate is provided with a limiting mechanism;

the air guide mechanism comprises an air guide pump arranged on the upper surface of the heat treatment furnace body, the air inlet end of the air guide pump is communicated with an air inlet pipe of which the other end penetrates through and extends to the inside of the heat treatment furnace body, the inner top wall of the heat treatment furnace body is fixed with an air collecting cover, the lower surface of the air collecting cover is provided with an isolation net, and the air outlet end of the air guide pump is communicated with a circulating pipe.

Further, one end of the air inlet pipe, which is far away from the air guide pump, is communicated with the upper surface of the gas collecting hood, and one end of the circulating pipe, which is far away from the air guide pump, is communicated with the back surface of the heat treatment furnace body.

Further, a storage plate is arranged between the left side wall and the right side wall of the inner cavity of the heat treatment furnace body, and a handle is fixed on the front surface of the furnace door.

Further, the limiting mechanism comprises a driving motor arranged on the upper surface of the base plate, a screw rod driven by the driving motor to do circular motion is fixed on the outer side of an output shaft of the driving motor, a sleeve is connected to the outer side of the screw rod in a threaded mode, a connecting block is fixed on the left side of the sleeve, a protection frame is fixed on the left side of the connecting block, and a limiting rod is vertically fixed on the upper surface of the base plate.

Further, the shape of the protection frame is a cuboid with hollow inside and missing lower surface and front face, and the sleeve is in vertical linear motion on the outer side of the screw rod.

Further, the upper surface of base plate is fixed with the riser, the front of riser is fixed with the limiting plate, the one end that driving motor was kept away from to the lead screw is rotated through the bearing and is connected with the lower surface of limiting plate.

Further, the right side of sleeve is fixed with the stop collar, stop collar sliding connection is in the outside of gag lever post.

Compared with the prior art, the technical scheme of the utility model has the following beneficial effects:

1. this heat treatment furnace with protective structure has set up guiding mechanism in this heat treatment furnace with protective structure, through mutually supporting between each structure in the guiding mechanism, through setting up air guide pump, intake pipe, gas collecting channel and circulating pipe, inside high temperature gas reentrant heat treatment furnace body's inside through intake pipe and circulating pipe when opening the furnace gate, prevent that the inside high temperature gas of heat treatment furnace body from surging out burn operating personnel, guarantee the security of fire door operating personnel operation, improved the protection effect of this heat treatment furnace.

2. This heat treatment furnace with protective structure has set up restriction mechanism in this heat treatment furnace with protective structure, through mutually supporting between each structure in the restriction mechanism, through setting up driving motor and lead screw, has realized reciprocating to sleeve, connecting block and protective frame, reciprocates through the protective frame, and the protective frame can play the restriction effect to operating personnel, prevents that operating personnel from contacting the heat treatment furnace body and leading to the condition emergence of scalding.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view showing the internal structure of a heat treatment furnace body according to the present utility model;

FIG. 3 is a schematic view of a diversion mechanism according to the present utility model;

FIG. 4 is a schematic view of a limiting mechanism according to the present utility model.

In the figure: 1 substrate, 2 heat treatment furnace body, 3 guiding mechanism, 301 air guiding pump, 302 intake pipe, 303 gas collecting hood, 304 isolation net, 305 circulating pipe, 4 heating pipe, 5 furnace door, 6 limiting mechanism, 601 driving motor, 602 lead screw, 603 sleeve, 604 connecting block, 605 protection frame, 606 gag lever post.

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. 1-2, a heat treatment furnace with a protection structure in this embodiment includes a substrate 1, a heat treatment furnace body 2 is disposed on an upper surface of the substrate 1, a diversion mechanism 3 is disposed on an upper surface of the heat treatment furnace body 2, at least two heating pipes 4 are disposed inside the heat treatment furnace body 2, the heating pipes 4 are common structures in the heat treatment furnace in the prior art, and are not described in detail herein, a furnace door 5 is hinged to a front surface of the heat treatment furnace body 2 through a hinge frame, and a limiting mechanism 6 is disposed on an upper surface of the substrate 1.

A storage plate is arranged between the left side wall and the right side wall of the inner cavity of the heat treatment furnace body 2 and is used for placing a workpiece, and a handle is fixed on the front surface of the furnace door 5.

It should be noted that the components of the present utility model are all common standard components or components known to those skilled in the art, and the structures and principles thereof are all known to those skilled in the art through technical manuals or through routine experimental methods.

Referring to fig. 3, in order to prevent the high temperature gas inside the heat treatment furnace body 2 from surging out of the burn operator, the air guiding mechanism 3 in this embodiment includes an air guiding pump 301 installed on the upper surface of the heat treatment furnace body 2, an air inlet pipe 302 extending through the heat treatment furnace body 2 from the other end is connected to an air inlet end of the air guiding pump 301, an air collecting cover 303 is fixed on an inner top wall of the heat treatment furnace body 2, an isolation net 304 is provided on a lower surface of the air collecting cover 303, the isolation net 304 plays a role of preventing other impurities from entering the air guiding pump 301, and an air outlet end of the air guiding pump 301 is connected to a circulation pipe 305.

One end of the air intake pipe 302, which is far from the air guide pump 301, is communicated with the upper surface of the air collection cover 303, and one end of the circulation pipe 305, which is far from the air guide pump 301, is communicated with the back surface of the heat treatment furnace body 2.

It can be understood that when the furnace door 5 needs to be opened halfway, the air guide pump 301 is started before the furnace door 5 is opened, negative pressure is generated inside the heat treatment furnace body 2 under the action of the air guide pump 301, high-temperature gas generated when the furnace door 5 is opened is sucked by the heat treatment furnace body 2 and reaches the air guide pump 301 through the air inlet pipe 302, and then returns to the heat treatment furnace body 2 through the circulating pipe 305, so that the high-temperature gas inside the heat treatment furnace body 2 can be effectively prevented from surging out of burn operators.

Referring to fig. 4, in order to prevent the operator from contacting the heat treatment furnace body 2 and causing scalding, the limiting mechanism 6 in this embodiment includes a driving motor 601 mounted on the upper surface of the substrate 1, a screw rod 602 driven by the driving motor 601 to perform circular motion is fixed on the outer side of the output shaft of the driving motor 601, a sleeve 603 is screwed on the outer side of the screw rod 602, a connecting block 604 is fixed on the left side of the sleeve 603, a protection frame 605 is fixed on the left side of the connecting block 604, and a limit rod 606 is vertically fixed on the upper surface of the substrate 1.

The protective frame 605 is in the shape of a rectangular parallelepiped with a hollow interior and a lower surface and a front face missing, and the sleeve 603 moves linearly up and down on the outside of the screw 602.

The upper surface of base plate 1 is fixed with the riser, and the front of riser is fixed with the limiting plate, and the one end that driving motor 601 was kept away from to lead screw 602 is rotated through the bearing and is connected with the lower surface of limiting plate, and the limiting plate plays support and spacing effect to lead screw 602.

The right side of sleeve 603 is fixed with the stop collar, and stop collar sliding connection is in the outside of gag lever post 606, and when sleeve 603 removed, it removes simultaneously to drive the stop collar, and the stop collar slides in the outside of gag lever post 606 this moment.

Standard parts used in the utility model can be purchased from the market, special-shaped parts can be customized according to the description of the specification and the drawings, the specific connection modes of all parts adopt conventional means such as mature bolts, rivets and welding in the prior art, the machinery, the parts and the equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection modes in the prior art, so that the details are not described.

If the utility model discloses or relates to components or structures fixedly connected with each other, then unless otherwise stated, the fixed connection is understood as: detachably fixed connection (e.g. using bolts or screws) can also be understood as: the non-detachable fixed connection (e.g. riveting, welding), of course, the mutual fixed connection may also be replaced by an integral structure (e.g. integrally formed using a casting process) (except for obviously being unable to use an integral forming process).

The working principle of the embodiment is as follows:

(1) When the heat treatment furnace body 2 is required to be used for heat treatment of workpieces, at the moment, a worker places the workpieces to be heat treated on a storage plate inside the heat treatment furnace body 2, then closes the furnace door 5, starts a heating pipe 4 inside the heat treatment furnace body 2, increases the temperature inside the heat treatment furnace body 2, enables the temperature inside the heat treatment furnace body 2 to reach the temperature required by the heat treatment, and after the temperature reaches the specified temperature, the heat treatment furnace body 2 starts to heat treat the workpieces, when the furnace door 5 needs to be opened halfway, the workpiece is added or other operations are performed, the air guide pump 301 is started before the furnace door 5 is opened, and the air guide pump 301 is acted, so that negative pressure is generated inside the heat treatment furnace body 2.

(2) When the furnace door 5 is opened, high-temperature gas generated during the process of opening the furnace door 5 is sucked into the gas guide pump 301 through the gas inlet pipe 302, and then returns to the heat treatment furnace body 2 through the circulating pipe 305, so that the condition that operators touch the heat treatment furnace body 2 to cause scalding can be effectively prevented, the protection effect of the heat treatment furnace is improved, meanwhile, when a workpiece is subjected to heat treatment, the driving motor 601 is started, the output shaft of the driving motor 601 starts rotating, the screw rod 602 starts rotating, the sleeve 603 is driven to move downwards by the rotation of the screw rod 602, the sleeve 603 moves downwards to drive the connecting block 604 and the protection frame 605 to move downwards, after the heat treatment furnace body 2 is covered by the protection frame 605, the driving motor 601 is closed, the protection frame 605 can play a limiting role on operators, the condition that operators touch the heat treatment furnace body 2 to cause scalding can be prevented, and when the furnace door 5 needs to be opened, the output shaft of the driving motor 601 is controlled to rotate, the protection frame 605 moves upwards until the protection frame 605 moves to a position which can not prevent operation.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. Heat treatment furnace with protective structure, comprising a base plate (1), characterized in that: the heat treatment furnace comprises a substrate (1), and is characterized in that a heat treatment furnace body (2) is arranged on the upper surface of the substrate (1), a flow guide mechanism (3) is arranged on the upper surface of the heat treatment furnace body (2), at least two heating pipes (4) are arranged in the heat treatment furnace body (2), a furnace door (5) is hinged to the front surface of the heat treatment furnace body (2) through a hinge bracket, and a limiting mechanism (6) is arranged on the upper surface of the substrate (1);

the air guide mechanism (3) comprises an air guide pump (301) arranged on the upper surface of the heat treatment furnace body (2), the air inlet end of the air guide pump (301) is communicated with an air inlet pipe (302) which penetrates through the other end and extends to the inside of the heat treatment furnace body (2), the inner top wall of the heat treatment furnace body (2) is fixedly provided with an air collecting cover (303), the lower surface of the air collecting cover (303) is provided with an isolation net (304), and the air outlet end of the air guide pump (301) is communicated with a circulating pipe (305).

2. A heat treatment furnace with a protective structure according to claim 1, wherein: one end of the air inlet pipe (302) far away from the air guide pump (301) is communicated with the upper surface of the air collecting cover (303), and one end of the circulating pipe (305) far away from the air guide pump (301) is communicated with the back surface of the heat treatment furnace body (2).

3. A heat treatment furnace with a protective structure according to claim 1, wherein: a storage plate is arranged between the left side wall and the right side wall of the inner cavity of the heat treatment furnace body (2), and a handle is fixed on the front surface of the furnace door (5).

4. A heat treatment furnace with a protective structure according to claim 1, wherein: the limiting mechanism (6) comprises a driving motor (601) arranged on the upper surface of the base plate (1), a screw rod (602) driven by the driving motor (601) to do circular motion is fixed on the outer side of an output shaft of the driving motor, a sleeve (603) is connected with the screw rod (602) in a threaded mode, a connecting block (604) is fixed on the left side of the sleeve (603), a protective frame (605) is fixed on the left side of the connecting block (604), and a limiting rod (606) is vertically fixed on the upper surface of the base plate (1).

5. The heat treatment furnace with a protective structure according to claim 4, wherein: the shape of the protection frame (605) is a cuboid with hollow inside and missing lower surface and front surface, and the sleeve (603) moves linearly up and down on the outer side of the screw rod (602).

6. The heat treatment furnace with a protective structure according to claim 4, wherein: the upper surface of base plate (1) is fixed with the riser, the front of riser is fixed with the limiting plate, the one end that driving motor (601) was kept away from to lead screw (602) is rotated through the bearing and is connected with the lower surface of limiting plate.

7. The heat treatment furnace with a protective structure according to claim 4, wherein: and a limiting sleeve is fixed on the right side of the sleeve (603), and is slidably connected to the outer side of the limiting rod (606).