CN213454948U

CN213454948U - Sealing structure for multi-chamber vacuum furnace

Info

Publication number: CN213454948U
Application number: CN202022357795.5U
Authority: CN
Inventors: 苏应斌
Original assignee: Wuhan Guangyuan Hongda Industry Co ltd
Current assignee: Wuhan Guangyuan Hongda Industry Co ltd
Priority date: 2020-10-21
Filing date: 2020-10-21
Publication date: 2021-06-15
Anticipated expiration: 2030-10-21

Abstract

The utility model discloses a sealing structure for a multi-chamber vacuum furnace, which relates to the technical field of multi-chamber vacuum furnaces and comprises a furnace body, wherein the top of the furnace body is fixedly provided with an upper mounting seat, the top of the upper mounting seat is fixedly provided with a top plate, the center of the top plate is fixedly provided with a double-shaft driving motor, the end part of an output shaft of the double-shaft driving motor is connected with a screw rod through a connecting sleeve in a transmission way, the outer side of the screw rod is sleeved with a sliding block, the sliding block is in threaded connection with the screw rod, and; the two sides of the top of the furnace body are both provided with sliding chutes A, the sliding blocks are positioned on the inner sides of the sliding chutes A, and the outer walls of the sliding blocks are in sliding connection with the inner walls of the sliding chutes A; the bottom of the furnace body is fixedly provided with a lower mounting seat. The utility model discloses can be better seal the furnace body, avoid the condition emergence because of the inside metal material of sealed harmfully leading to of influence furnace body or metal workpiece's vacuum heat treatment effect.

Description

Sealing structure for multi-chamber vacuum furnace

Technical Field

The utility model relates to a multi-chamber vacuum furnace technical field, in particular to a seal structure for multi-chamber vacuum furnace.

Background

The multi-chamber vacuum furnace is used for carrying out vacuum heat treatment on a metal material or a metal workpiece, the vacuum heat treatment is a combination technology of a vacuum technology and a heat treatment technology, compared with the conventional heat treatment, the multi-chamber vacuum furnace can not only enable the metal material or the metal workpiece to obtain expected structure and performance through heating, heat preservation and cooling, but also has the advantages of no oxidation, no decarburization, no carburization and the like, and meanwhile, phosphorus chips on the surface of the workpiece can be removed, so that the effect of surface brightening and purifying is achieved.

Most of existing multi-chamber vacuum furnaces adopt a mode of driving a connecting rod by a motor to open and close a furnace door, but the mode still has some defects in practical application, for example, the pressure on the connecting rod in the opening and closing process of the furnace door is large, the connecting rod is easy to deform, after long-term use, the situation that the furnace door cannot effectively seal a furnace body due to the deformation of the connecting rod is easy to occur, and further the vacuum heat treatment effect of the multi-chamber vacuum furnace on metal materials or metal workpieces is influenced.

Therefore, it is necessary to develop a sealing structure for a multi-chamber vacuum furnace to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a seal structure for multi-chamber vacuum furnace to the pressure that the in-process led to the fact the connecting rod is opened and close to the furnace gate that proposes in solving above-mentioned background art is great, easily leads to the connecting rod to warp, uses the back for a long time, and the condition that can't effectively seal up the furnace body because of the furnace gate that the connecting rod warp and cause easily appears, and then influences the problem of multi-chamber vacuum furnace to metal material or metal workpiece's vacuum heat treatment effect.

In order to achieve the above object, the utility model provides a following technical scheme: a sealing structure for a multi-chamber vacuum furnace comprises a furnace body, wherein an upper mounting seat is fixedly arranged at the top of the furnace body, a top plate is fixedly arranged at the top of the upper mounting seat, a double-shaft driving motor is fixedly arranged at the center of the top plate, the end part of an output shaft of the double-shaft driving motor is in transmission connection with a screw rod through a connecting sleeve, a sliding block is sleeved on the outer side of the screw rod and is in threaded connection with the screw rod, and a furnace door is fixedly arranged at the bottom end;

the two sides of the top of the furnace body are both provided with sliding chutes A, the sliding blocks are positioned on the inner sides of the sliding chutes A, and the outer walls of the sliding blocks are in sliding connection with the inner walls of the sliding chutes A;

the furnace body bottom is fixed and is provided with down the mount pad, the fixed base that is provided with in mount pad bottom down, the fixed support that is provided with in base bottom, the furnace gate slides and sets up in the support top.

Preferably, the two ends of the top plate are fixedly provided with positioning blocks, and the positioning blocks are movably sleeved at the outer side end of the screw rod through bearings.

Preferably, both sides of the top of the base are provided with sliding chutes B, the base is internally provided with an installation cavity, and the sliding chutes B are communicated with the installation cavity.

Preferably, the inside center department of installation cavity is provided with drive gear, drive gear openly fixedly runs through and is provided with the rotation axis, rotation axis one end is set up on the installation cavity inner wall through the bearing nestification and the rotation axis other end runs through the installation cavity inner wall and extends to the base outside, the fixed carousel that is provided with in rotation axis tip outside.

Preferably, the bottoms of the two furnace doors are fixedly provided with transmission rods, the two transmission rods are respectively positioned on the inner sides of the two sliding grooves B, and the end parts of the transmission rods are fixedly provided with translation plates.

Preferably, one side of the translation plate close to the driving gear is uniformly and fixedly provided with a plurality of convex teeth, and the convex teeth are meshed with the driving gear.

The utility model discloses a technological effect and advantage:

1. the utility model discloses a be provided with roof, biax driving motor, screw rod, sliding block and support to utilize roof, biax driving motor, screw rod and sliding block to cooperate, drive two furnace gates, utilize the support to support two furnace gates simultaneously, compare the device of the same type among the prior art, the utility model discloses the weight of dispersion furnace gate self that can be better, and then avoid each drive assembly or bearing assembly to take place because of the condition of the furnace gate aversion that the sustained atress leads to, can be better seal the furnace body, avoid the condition emergence because of the inside metal material of furnace body or the vacuum heat treatment effect of metal work piece that the sealing is bad;

2. the utility model discloses a be provided with drive gear, carousel and dogtooth to when needs are manual to open the furnace gate, the user can carry out clockwise rotation to the carousel, and then utilizes the carousel to pass through the rotation axis and drive gear clockwise rotation, drive gear drives two transfer lines respectively to keeping away from direction motion each other through matched with dogtooth and translation board this moment, and then makes two transfer lines drive two furnace gates respectively to keeping away from direction motion each other, and then makes the utility model discloses can carry out opening and close of furnace gate equally under lacking power supply state.

Drawings

Fig. 1 is a schematic view of the overall front view structure of the present invention.

Fig. 2 is a schematic view of the front sectional structure of the top plate and the base of the present invention.

Fig. 3 is an enlarged schematic structural diagram of a portion a in fig. 2 according to the present invention.

In the figure: 1. a furnace body; 2. an upper mounting seat; 3. a top plate; 4. a dual-axis drive motor; 5. connecting sleeves; 6. a screw; 7. a slider; 8. a furnace door; 9. a chute A; 10. positioning blocks; 11. a lower mounting seat; 12. a base; 13. a support; 14. a chute B; 15. installing a chamber; 16. a drive gear; 17. a rotating shaft; 18. a turntable; 19. a transmission rod; 20. a translation plate; 21. and (4) convex teeth.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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.

The utility model provides a sealing structure for a multi-chamber vacuum furnace as shown in figures 1-3, as shown in figure 1, comprising a furnace body 1, an upper mounting seat 2 is fixedly arranged at the top of the furnace body 1, a top plate 3 is fixedly arranged at the top of the upper mounting seat 2, a double-shaft driving motor 4 is fixedly arranged at the center of the top plate 3, the end part of an output shaft of the double-shaft driving motor 4 is in transmission connection with a screw rod 6 through a connecting sleeve 5, a sliding block 7 is sleeved outside the screw rod 6, the sliding block 7 is in threaded connection with the screw rod 6, a furnace door 8 is fixedly arranged at the bottom end of the sliding block 7, so that when the furnace door 8 needs to be opened, the double-shaft driving motor 4 drives the output shaft to rotate clockwise, the output shaft of the double-shaft driving motor 4 drives the screw rod 6 to rotate, thereby driving the two oven doors 8 to move away from each other.

More specifically, 3 top both ends of roof all fix and set up locating piece 10, and locating piece 10 cup joints through the bearing activity and sets up in screw rod 6 outside end to utilize locating piece 10 to support screw rod 6 under the prerequisite that does not influence screw rod 6 rotation.

It should be further noted that the bottom of the furnace body 1 is fixedly provided with a lower mounting seat 11, the bottom of the lower mounting seat 11 is fixedly provided with a base 12, the bottom of the base 12 is fixedly provided with a support 13, and the furnace doors 8 are slidably arranged on the top of the support 13, so that the support 13 can be used for supporting the two furnace doors 8.

As shown in fig. 2 and fig. 3, referring to fig. 1, the sliding grooves a9 are formed on both sides of the top of the furnace body 1, the sliding block 7 is located inside the sliding groove a9, and the outer wall of the sliding block 7 is slidably connected with the inner wall of the sliding groove a9, so that the sliding block 7 is guided and limited by the sliding groove a 9.

Meanwhile, the two sides of the top of the base 12 are both provided with a sliding groove B14 and the base 12 is internally provided with an installation cavity 15, the sliding groove B14 is communicated with the installation cavity 15, the center of the interior of the installation cavity 15 is provided with a driving gear 16, the front of the driving gear 16 is fixedly penetrated and provided with a rotating shaft 17, one end of the rotating shaft 17 is nested on the inner wall of the installation cavity 15 through a bearing, the other end of the rotating shaft 17 penetrates through the inner wall of the installation cavity 15 and extends to the exterior of the base 12, the outer side of the end part of the rotating shaft 17 is fixedly provided with a turntable 18, the bottoms of the two furnace doors 8 are respectively and fixedly provided with a transmission rod 19, the two transmission rods 19 are respectively positioned at the inner sides of the two sliding grooves B14, the end part of the transmission rod 19 is fixedly provided with a translation plate 20, one side of, and then utilize carousel 18 to pass through rotation axis 17 and drive gear 16 clockwise rotation, drive gear 16 drives two transfer lines 19 respectively through with it matched with dogtooth 21 and translation board 20 this moment to keeping away from direction motion each other, and then makes two transfer lines 19 drive two furnace gates 8 respectively to keeping away from direction motion each other, and then makes the utility model discloses can carry out opening and close of furnace gate 8 under lacking power supply state like.

The utility model discloses the theory of operation:

in practical use, when the furnace door 8 needs to be opened, the double-shaft driving motor 4 drives the output shaft of the double-shaft driving motor to rotate clockwise, the output shaft of the double-shaft driving motor 4 drives the screw 6 to rotate clockwise through the connecting sleeve 5, at the moment, the sliding block 7 moves in the direction away from the double-shaft driving motor 4 outside the screw 6, and then the two furnace doors 8 are driven to move in the directions away from each other, and the operation is finished;

similarly, when the oven door 8 needs to be closed, the double-shaft driving motor 4 drives the output shaft thereof to rotate anticlockwise, so that the two oven doors 8 move towards the direction close to each other, and the operation is finished;

when the oven door 8 needs to be manually opened, a user can rotate the rotary disc 18 clockwise, and then the rotary disc 18 drives the driving gear 16 to rotate clockwise through the rotating shaft 17, at this time, the driving gear 16 drives the two transmission rods 19 to move in the direction away from each other through the convex teeth 21 and the translation plate 20 which are matched with the driving gear 16, so that the two transmission rods 19 respectively drive the two oven doors 8 to move in the direction away from each other, and the operation is finished;

similarly, when the oven door 8 needs to be closed, the rotating disc 18 is rotated counterclockwise.

Finally, it should be noted that: 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 and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. A sealing structure for a multi-chamber vacuum furnace, characterized in that: the furnace comprises a furnace body (1), wherein an upper mounting seat (2) is fixedly arranged at the top of the furnace body (1), a top plate (3) is fixedly arranged at the top of the upper mounting seat (2), a double-shaft driving motor (4) is fixedly arranged at the center of the top plate (3), the end part of an output shaft of the double-shaft driving motor (4) is in transmission connection with a screw rod (6) through a connecting sleeve (5), a sliding block (7) is sleeved on the outer side of the screw rod (6), the sliding block (7) is in threaded connection with the screw rod (6), and a furnace door (8) is fixedly arranged at the bottom;

the two sides of the top of the furnace body (1) are both provided with sliding chutes A (9), the sliding blocks (7) are positioned on the inner sides of the sliding chutes A (9), and the outer walls of the sliding blocks (7) are in sliding connection with the inner walls of the sliding chutes A (9);

the furnace body (1) bottom is fixed and is provided with down mount pad (11), mount pad (11) bottom is fixed and is provided with base (12) down, base (12) bottom is fixed and is provided with support (13), furnace gate (8) slide to set up in support (13) top.

2. A sealing structure for a multi-chamber vacuum furnace according to claim 1, characterized in that: and the two ends of the top plate (3) are fixedly provided with positioning blocks (10), and the positioning blocks (10) are movably sleeved at the outer side end of the screw rod (6) through bearings.

3. A sealing structure for a multi-chamber vacuum furnace according to claim 1, characterized in that: the base is characterized in that sliding chutes B (14) are formed in two sides of the top of the base (12) and an installation cavity (15) is formed inside the base (12), and the sliding chutes B (14) are communicated with the installation cavity (15).

4. A sealing structure for a multi-chamber vacuum furnace according to claim 3, characterized in that: the installation cavity (15) inside center department is provided with drive gear (16), drive gear (16) openly fix to run through and be provided with rotation axis (17), rotation axis (17) one end sets up on installation cavity (15) inner wall through the bearing nestification and rotation axis (17) other end runs through installation cavity (15) inner wall and extends to base (12) outside, rotation axis (17) tip outside is fixed and is provided with carousel (18).

5. A sealing structure for a multi-chamber vacuum furnace according to claim 3, characterized in that: the bottom of each of the two furnace doors (8) is fixedly provided with a transmission rod (19), the two transmission rods (19) are respectively positioned on the inner sides of the two sliding chutes B (14), and the end parts of the transmission rods (19) are fixedly provided with translation plates (20).

6. A sealing structure for a multi-chamber vacuum furnace according to claim 5, wherein: one side of the translation plate (20) close to the driving gear (16) is uniformly and fixedly provided with a plurality of convex teeth (21), and the convex teeth (21) are meshed with the driving gear (16).