CN219869052U

CN219869052U - Vacuum sintering furnace

Info

Publication number: CN219869052U
Application number: CN202320699368.6U
Authority: CN
Inventors: 徐光建
Original assignee: Ningbo Heli Magnetic Material Technology Co ltd
Current assignee: Ningbo Heli Magnetic Material Technology Co ltd
Priority date: 2023-03-28
Filing date: 2023-03-28
Publication date: 2023-10-20
Anticipated expiration: 2033-03-28

Abstract

The utility model relates to the technical field of material sintering equipment, in particular to a vacuum sintering furnace, which comprises a sintering furnace body, a cooling system, a pneumatic system and an electric control system, wherein a sintering furnace cavity is formed in the sintering furnace body for placing sintering materials, the cooling system and the electric system are electrically connected with the electric control system, the electric control system is used for controlling the cooling system to cool the sintering furnace cavity and controlling the pneumatic system to extract gas from the sintering furnace cavity, a limiting piece is fixedly arranged on the outer side wall of the sintering furnace body, a furnace cavity end cover is arranged on the sintering furnace body and hinged with the sintering furnace body and is used for covering an opening of the sintering furnace cavity, when the furnace cavity end cover rotates to open the opening of the sintering furnace cavity, the limiting piece is in butt joint with the furnace cavity end cover to limit, and the furnace cavity end cover is arranged at intervals with an adjacent system. The utility model has the effect of being convenient for operators to manually adjust the rotation angle of the hearth when opening the end cover of the hearth.

Description

Vacuum sintering furnace

Technical Field

The utility model relates to the technical field of material sintering equipment, in particular to a vacuum sintering furnace.

Background

The vacuum sintering furnace is a sintering device, and when in operation, the sintering chamber is vacuumized and then filled with protective hydrogen, and then the material in the furnace is sintered by frequency induction heating.

In the related art, the vacuum sintering furnace mainly comprises a sintering furnace body, a cooling system, a pneumatic system and an electric control system, wherein the cooling system, the pneumatic system and the electric control system are arranged adjacent to the sintering furnace body, a sintering furnace cavity is formed in the sintering furnace body and used for sintering materials to be processed, the cooling system is used for cooling the sintering furnace body, the pneumatic system is used for providing clean compressed air for the sintering furnace body, the electric control system is connected with the sintering furnace body, the cooling system and the pneumatic system and used for controlling and coordinating the whole vacuum sintering furnace to sinter, a furnace cavity end cover is arranged at an opening of the sintering furnace cavity and is close to a side wall of the furnace cavity opening, the furnace cavity end cover is hinged with the hinged plate, and the furnace cavity end cover is used for sealing or opening the furnace cavity opening through rotation adjustment.

For the related technology, because the cooling system, the pneumatic system, the electric control system and the sintering furnace body are mutually adjacent when being compactly distributed, the opening angle of the hearth end cover needs to be controlled by staff in the opening process of the hearth end cover so as to avoid the misoperation of the hearth end cover and the adjacent system, and the use is relatively inconvenient.

Disclosure of Invention

In order to facilitate the operator to open the end cover of the hearth, the utility model provides a vacuum sintering furnace without manually adjusting the rotation angle of the hearth.

The utility model provides a vacuum sintering furnace which adopts the following technical scheme:

the utility model provides a vacuum sintering stove, includes sintering furnace body, cooling system, pneumatic system and electrical control system, and sintering furnace body has seted up the sintering furnace and has supplied sintering material to put into, cooling system, electrical system all with electrical control system electric connection, electrical control system is used for controlling cooling system to the cooling of sintering furnace to and control pneumatic system to sintering furnace extraction gas, the lateral wall of sintering furnace body is fixed to be equipped with the locating part, the sintering furnace body is equipped with the furnace end cover, the furnace end cover with the sintering furnace body is articulated, is used for the lid to close sintering furnace's opening, the furnace end cover rotates will when sintering furnace opening is opened, the locating part with furnace end cover butt is spacing, furnace end cover and adjacent system interval setting.

Through adopting above-mentioned technical scheme, when furnace end cover rotates around articulated department to open the sintering furnace opening, the locating part carries out the butt spacing to the furnace end cover for the rotation angle of furnace end cover can not be too big, thereby reduces the probability that furnace end cover and adjacent cooling system or start-up system, electric control system bump, think the step of control opening angle when reducing the staff and opening the furnace end cover, facilitate the use.

Optionally, the furnace end cover includes end cover main part and articulated cantilever, articulated cantilever one end with the fritting furnace body articulates, the other end with end cover main part fixed connection, the locating part is kept away from the fritting furnace body tip has seted up the butt inclined plane, the butt inclined plane supplies articulated cantilever butt.

Through adopting above-mentioned technical scheme, the locating part supplies articulated cantilever butt through the butt inclined plane for area of contact between articulated cantilever and the locating part increases, and then improves the spacing stability of rotation angle to the furnace end cover.

Optionally, the end part of the limiting part protruding block far away from the sintering furnace body is sleeved with a wear-resistant rubber sleeve, and the wear-resistant rubber sleeve is used for abutting the hinged cantilever.

Through adopting above-mentioned technical scheme, when articulated cantilever rotates towards the locating part, carry out the butt with wear-resisting rubber sleeve, because wear-resisting rubber sleeve material is soft relatively, and then can reduce the produced friction loss when articulated cantilever contacts with the locating part, help improving life.

Optionally, an embedded groove is formed in one side surface of the hinged cantilever, when the hearth end cover rotates towards the limiting piece, the limiting piece is embedded into the embedded groove, and the circumferential side wall of the wear-resistant rubber sleeve abuts against the inner wall of the embedded groove.

Through adopting above-mentioned technical scheme, when the locating part embedding is inlayed and is established the inslot, wear-resisting rubber sleeve supports tightly with inlaying and establish the inslot wall, has increased the locating part and has inlayed the frictional force of establishing between the inslot wall to make the connection fastness between locating part and the articulated cantilever increase, make furnace end cover be difficult for automatic the emergence rotation under non-manual regulation effect, keep open sintering furnace opening, the sintering material of being convenient for is put into.

Optionally, the circumference outer wall of wear-resisting rubber sleeve is fixed to be equipped with the extrusion sand grip, the locating part embedding when inlaying and establishing the inslot, the extrusion sand grip with inlay and establish the inslot wall and extrude each other.

Through adopting above-mentioned technical scheme, the extrusion force between wear-resisting rubber sleeve and the embedded groove inner wall has been increased in the setting of extrusion sand grip to can increase the friction force between wear-resisting rubber sleeve and the embedded groove inner wall, further improve the connection fastness between locating part and the articulated cantilever.

Optionally, the sintering furnace comprises a sintering furnace body, and is characterized by further comprising a sealing assembly, wherein the sealing assembly comprises a connecting seat and a locking hand wheel, the connecting seat is hinged with the sintering furnace body, and the locking hand wheel is arranged on the connecting seat and is used for pressing the end cover of the furnace chamber to the opening of the sintering furnace chamber.

Through adopting above-mentioned technical scheme, the connecting seat is articulated with the fritting furnace body to when the furnace end cover needs to open, the connecting seat can drive the locking hand wheel and remove to the position that does not shelter from the furnace end cover, and the furnace end cover of being convenient for is opened, and when the furnace end cover will sinter the furnace opening seal, the connecting seat can rotate to the position that shelters from the furnace end cover around articulated department, and then drives the locking hand wheel to compress tightly the locking to the furnace end cover, realizes sealing the opening to sinter the furnace.

Optionally, the locking hand wheel includes gripping ring and screw thread post, the screw thread post with gripping ring fixed connection, the screw thread post with connecting seat threaded connection, just the tip of screw thread post passes behind the connecting seat with furnace end cover supports tightly.

Through adopting above-mentioned technical scheme, when rotating the handheld ring of holding, the screw thread post moves towards or keep away from the direction of furnace end cover to make the tip of screw thread post compress tightly or loosen the furnace end cover, realize locking or unblock to the furnace end cover.

Optionally, when the hearth end cover covers the opening of the sintering hearth, a holding handle is fixedly arranged on the side wall of the hearth end cover, which is far away from the sintering furnace body.

Through adopting above-mentioned technical scheme, the setting of gripping handle is convenient for the staff to order about the furnace end cover and removes, does not need to grasp on the furnace end cover to reduce the probability of scalding the staff because of furnace end cover surface temperature is higher.

In summary, the present utility model includes at least one of the following beneficial technical effects:

1. when the hearth end cover rotates around the hinge joint to open the sintering hearth opening, the limiting piece carries out abutting limiting on the hearth end cover, so that the rotating angle of the hearth end cover is not overlarge, the probability of collision between the hearth end cover and an adjacent cooling system or a starting system and an electrical control system is reduced, the step of controlling the opening angle when a worker opens the hearth end cover is reduced, and the use is convenient;

2. the limiting piece is used for enabling the hinged cantilever to be in butt joint through the butt inclined plane, so that the contact area between the hinged cantilever and the limiting piece is increased, and further the limiting stability of the rotating angle of the hearth end cover is improved;

3. when the limiting piece is embedded into the embedded groove, the abrasion-resistant rubber sleeve is abutted against the inner wall of the embedded groove, so that the friction force between the limiting piece and the inner wall of the embedded groove is increased, the connection firmness between the limiting piece and the hinged cantilever is improved, the hearth end cover is not easy to automatically rotate under the action of non-manual adjustment, the opening of the sintering hearth is kept open, and sintering materials are conveniently placed in the hearth end cover.

Drawings

FIG. 1 is a schematic view showing the overall structure of a vacuum sintering furnace according to the present utility model.

FIG. 2 is a partial exploded view of the furnace end cap and the sintering furnace body of the present utility model.

FIG. 3 is a partial exploded view of the end cap of the furnace, the wear resistant rubber sleeve and the body of the sintering furnace of the present utility model.

FIG. 4 is a partial exploded view of the seal assembly and the sintering furnace body of the present utility model.

Reference numerals illustrate: 1. a sintering furnace body; 11. sintering a hearth; 12. a hinge block; 121. a hinge hole; 13. hinging the convex column; 2. a cooling system; 3. a pneumatic system; 4. an electrical control system; 5. a limiting piece; 51. abutting the inclined plane; 6. a hearth end cover; 61. an end cap body; 62. a hinged cantilever; 621. a groove is embedded; 622. a hinge shaft; 63. a grip handle; 7. wear-resistant rubber sleeves; 71. extruding the convex strips; 8. a seal assembly; 81. a connecting seat; 811. a relief groove; 812. a transfer hole; 82. locking a hand wheel; 821. a grip ring; 822. a threaded column; 823. and (5) connecting a plate.

Detailed Description

The utility model is described in further detail below with reference to fig. 1-4. In this embodiment, the direction indicated by the y-axis of the coordinate axis is the front, the direction opposite to the y-axis is the rear, the direction indicated by the x-axis is the left, and the direction opposite to the x-axis is the right.

The embodiment of the utility model discloses a vacuum sintering furnace. Referring to fig. 1 and 2, the vacuum sintering furnace includes a sintering furnace body 1, a cooling system 2, a pneumatic system 3 and an electrical control system 4, the sintering furnace body 1 is provided with a sintering furnace 11, the opening of the sintering furnace 11 is provided towards the front side, the cooling system 2 and the pneumatic system 3 are adjacently arranged on the right side of the sintering furnace body 1, the electrical control system 4 is adjacently arranged on the left side of the sintering furnace body 1, a limiting piece 5 is fixedly arranged on the outer wall of the right side, close to the front side, of the sintering furnace body 1, a furnace end cover 6 is hinged with a furnace end cover 6, the furnace end cover 6 is used for sealing the opening of the sintering furnace 11, when the furnace end cover 6 rotates around the hinge towards the limiting piece 5, the limiting piece 5 is used for limiting the furnace end cover 6 in an abutting mode, the furnace end cover 6 is arranged at intervals with the cooling system 2 and the pneumatic system 3, the probability that the furnace end cover 6 is collided by the cooling system 2 or the pneumatic system 3 is reduced, and a worker is not required to control the rotating angle when the furnace end cover 6 is opened, and the use is relatively convenient.

In this embodiment, the sintering furnace body 1 is internally provided with an intermediate frequency induction heating element, when a sintering material is placed in the sintering furnace 11, the electrical control system 4 controls the sintering furnace body 1 to perform sintering processing through a PLC program, the cooling system 2 provides cooling water for the sintering furnace body 1, a heat dissipation cooling effect is achieved, the pneumatic system 3 is connected with the sintering furnace body 1 through a pipeline, and the pneumatic system is used for extracting gas in the sintering furnace 11, so that the inside of the sintering furnace 11 is in a vacuum state. The specific connection relationship among the sintering furnace body 1, the pneumatic system 3, the cooling system 2 and the electrical control system 4 is not an important point of the present utility model, and is the prior art in the field, so the detailed description of the specific connection relationship is not provided in the present utility model.

Referring to fig. 1 and 2, the furnace end cover 6 includes an end cover main body 61 and hinge cantilevers 62, hinge blocks 12 are fixedly connected to the peripheral side outer wall of the sintering furnace body 1 near the front side, two hinge blocks 12 are arranged at intervals along the vertical direction, hinge holes 121 are formed in the two hinge blocks 12, the hinge holes 121 penetrate through two surfaces of the corresponding hinge blocks 12 in the vertical direction, the hinge cantilevers 62 are arranged in a bent arc shape, hinge shafts 622 are fixedly connected to two parallel side walls at the rear end of the hinge cantilevers 62, the hinge shafts 622 are inserted into and rotatably connected to the corresponding hinge holes 121, the front end of articulated cantilever 62 is close to the preceding lateral wall fixed connection on right side with end cover main part 61, drives end cover main part 61 synchronous rotation when articulated cantilever 62 rotates towards the right side, and abutment inclined plane 51 has been seted up along the lateral wall to the front side edge of locating part 5, and abutment inclined plane 51 is the slope setting towards the left side after in the past, and the butt is on abutment inclined plane 51 when the articulated support is close to locating part 5, and end cover main part 61 and adjacent pneumatic system 3 interval set up this moment, have reduced the probability that end cover main part 61 collides each other with pneumatic system 3 when opening.

Referring to fig. 2 and 3, in order to reduce friction damage caused when the hinge cantilever 62 abuts against the limiting member 5, the end portion of the limiting member 5 away from the sintering furnace body 1 is sleeved with a wear-resistant rubber sleeve 7, the wear-resistant rubber sleeve 7 is made of a wear-resistant rubber material, and the material is relatively soft, so that direct friction is not easy to occur between the limiting member 5 and the hinge cantilever 62, and the service life of the limiting member 5 is prolonged.

Referring to fig. 2, in order to facilitate driving the end cover main body 61 to move, the side wall of the end cover main body 61 away from the sintering furnace body 1 is fixedly connected with a holding handle 63, the holding handle 63 is fixedly arranged on the front side wall of the end cover main body 61 close to the left side, and a worker can drive the end cover main body 61 to rotate towards the right side along the horizontal direction by holding on the holding handle 63, so that the probability of scalding caused by higher surface temperature of the end cover main body 61 when the worker directly holds the end cover main body 61 is reduced.

Referring to fig. 2 and 3, when the hinge cantilever 62 rotates toward the limiting member 5, the hinge cantilever 62 is provided with an embedded groove 621 toward the side wall of the limiting member 5, the embedded groove 621 is used for embedding the limiting member 5, the wear-resistant rubber sleeve 7 is mutually abutted and extruded with the inner wall of the embedded groove 621, the friction force between the limiting member 5 and the inner wall of the embedded groove 621 is increased, the connection firmness between the limiting member 5 and the hinge cantilever 62 is improved, the hinge cantilever 62 is not easy to rotate relatively under the action of non-artificial adjustment, and accordingly the opening of the sintering hearth 11 is kept open, and the sintering material is conveniently placed in the sintering hearth 11.

Referring to fig. 2 and 3, in order to further increase the friction between the stopper 5 and the inner wall of the insertion groove 621, to improve the insertion stability of the stopper 5 and the insertion groove 621, the circumferential outer wall of the wear-resistant rubber sleeve 7 is fixedly provided with a plurality of extrusion protrusions 71, the number of extrusion protrusions 71 is provided with a plurality of adjacent extrusion protrusions 71, the adjacent extrusion protrusions 71 are arranged at intervals, the extrusion protrusions 71 and the wear-resistant rubber sleeve 7 are made of the same material, and when the stopper 5 is inserted into the insertion groove 621, the extrusion protrusions 71 and the inner wall of the insertion groove 621 are mutually extruded.

Referring to fig. 3 and 4, in order to improve the sealing performance of the end cover main body 61, the sealing assembly 8 is further provided on the sintering furnace main body 1, the sealing assembly 8 is provided with a plurality of groups, the plurality of groups of sealing elements are uniformly arranged around the axial circumference of the sintering furnace main body 1, the sealing assembly 8 comprises a connecting seat 81 and a locking hand wheel 82, the edge side wall of the sintering furnace main body 1 close to the front side is fixedly provided with a hinging convex column 13, the rear end of the connecting seat 81 is provided with a yielding groove 811, two opposite inner walls of the yielding groove 811 are provided with a transfer hole 812, the transfer hole 812 is used for inserting and rotating the hinging convex column 13, when the opening of the sintering furnace 11 is sealed by the furnace end cover 6, the connecting seat 81 rotates towards the front side, the connecting seat 81 is pressed on the front side wall of the furnace end cover 6, the locking hand wheel 82 comprises a holding ring 821 and a threaded column 822, the inner wall of the holding ring 821 is fixedly provided with a connecting plate 823, the threaded column 822 is fixedly connected with the connecting plate 823, the threaded column 822 and the holding ring 821 are concentrically arranged, the circumferential side wall of the threaded column 822 is provided with an external thread, the threaded column 822 is connected onto the connecting seat 81, and the end part of the threaded column 822 is far from the holding ring 821 and passes through the connecting seat 81.

When the sintering hearth 11 needs to be opened, the holding ring 821 is rotated first to drive the threaded column 822 to move towards the side far away from the end cover main body 61, so that the threaded column 822 does not compress the end cover main body 61, when the end cover main body 61 needs to be compressed, the opening of the sintering hearth 11 is covered and sealed by the end cover main body 61, the connecting seat 81 is rotated to the position compressing the end cover main body 61, at the moment, the end face of the threaded column 822 is opposite to the front side wall of the end cover main body 61, the threaded column 822 is mutually perpendicular to the front side surface of the end cover main body 61, and at the moment, the threaded column 822 moves towards the rear side until the end cover main body 61 is compressed, so that the end cover main body 61 is locked.

The implementation principle of the vacuum sintering furnace provided by the embodiment of the utility model is as follows: through setting up the locating part 5 for when the end cover main part 61 rotated towards the right side, the locating part 5 embedding inlays and establishes in the groove 621, and butt inclined plane 51 and inlay the inner wall laminating butt of establishing the groove 621 form spacingly to the rotation angle of end cover main part 61, make end cover main part 61 and adjacent pneumatic system 3 interval setting, simplify the step of opening end cover main part 61, do not need the staff to control the rotation angle of end cover main part 61, facilitate the use.

The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims

1. The utility model provides a vacuum sintering stove, including sintering furnace body (1), cooling system (2), pneumatic system (3) and electric control system (4), sintering furnace body (1) has been seted up sintering furnace (11) and has been supplied sintering material to put into, cooling system (2), electric system all with electric control system (4) electric connection, electric control system (4) are used for controlling cooling system (2) to sintering furnace (11) cooling to and control pneumatic system (3) are to sintering furnace (11) extraction gas, its characterized in that: the utility model discloses a sintering furnace, including sintering furnace body (1), furnace end cover (6) and sintering furnace body (1) are fixed be equipped with locating part (5) in lateral wall, sintering furnace body (1) lateral wall, furnace end cover (6) with sintering furnace body (1) are articulated, are used for the lid the opening of sintering furnace (11), furnace end cover (6) rotate will when sintering furnace (11) opening is opened, locating part (5) with furnace end cover (6) butt is spacing, furnace end cover (6) and adjacent system interval set up.

2. A vacuum sintering furnace according to claim 1, characterized in that: the hearth end cover (6) comprises an end cover main body (61) and a hinged cantilever (62), one end of the hinged cantilever (62) is hinged to the sintering furnace body (1), the other end of the hinged cantilever is fixedly connected with the end cover main body (61), the limiting piece (5) is far away from the end part of the sintering furnace body (1) and is provided with an abutting inclined surface (51), and the abutting inclined surface (51) is used for abutting the hinged cantilever (62).

3. A vacuum sintering furnace according to claim 2, characterized in that: the end part of the protruding block of the limiting piece (5) far away from the sintering furnace body (1) is sleeved with a wear-resistant rubber sleeve (7), and the wear-resistant rubber sleeve (7) is used for being abutted by the hinged cantilever (62).

4. A vacuum sintering furnace according to claim 3, characterized in that: an embedded groove (621) is formed in one side surface of the hinged cantilever (62), when the hearth end cover (6) rotates towards the limiting piece (5), the limiting piece (5) is embedded into the embedded groove (621), and the circumferential side wall of the wear-resistant rubber sleeve (7) is abutted to the inner wall of the embedded groove (621).

5. The vacuum sintering furnace according to claim 4, wherein: the circumferential outer wall of the wear-resistant rubber sleeve (7) is fixedly provided with an extrusion raised line (71), and when the limiting piece (5) is embedded into the embedded groove (621), the extrusion raised line (71) and the inner wall of the embedded groove (621) are mutually extruded.

6. A vacuum sintering furnace according to claim 1, characterized in that: still include seal assembly (8), seal assembly (8) include connecting seat (81) and locking hand wheel (82), connecting seat (81) with sintering furnace body (1) are articulated, locking hand wheel (82) are located on connecting seat (81), be used for with furnace end cover (6) compress tightly in the opening of sintering furnace (11).

7. A vacuum sintering furnace according to claim 6, characterized in that: the locking hand wheel (82) comprises a holding ring (821) and a threaded column (822), the threaded column (822) is fixedly connected with the holding ring (821), the threaded column (822) is in threaded connection with the connecting seat (81), and the end part of the threaded column (822) passes through the connecting seat (81) and then is abutted against the hearth end cover (6).

8. A vacuum sintering furnace according to claim 1, characterized in that: when the hearth end cover (6) covers the opening of the sintering hearth (11), a holding handle (63) is fixedly arranged on the side wall, far away from the sintering furnace body (1), of the hearth end cover (6).