CN108106431B

CN108106431B - Bell jar type sintering furnace

Info

Publication number: CN108106431B
Application number: CN201711346125.XA
Authority: CN
Inventors: 王学仕; 邓斌; 万喜新; 陈庆广
Original assignee: CETC 48 Research Institute
Current assignee: CETC 48 Research Institute
Priority date: 2017-12-15
Filing date: 2017-12-15
Publication date: 2020-02-18
Anticipated expiration: 2037-12-15
Also published as: CN108106431A

Abstract

The invention discloses a bell jar type sintering furnace, which comprises a hearth, a feeding frame and a vertical lifting mechanism, wherein the feeding frame and the vertical lifting mechanism are arranged below the hearth, a bearing table is arranged on the vertical lifting mechanism, a translation driving mechanism and a pair of telescopic guide rails are arranged on the bearing table, the feeding frame is arranged on the pair of telescopic guide rails, and the translation driving mechanism is in driving connection with the feeding frame. The feeding and discharging device has the advantages of simple structure, convenience in use, high feeding and discharging efficiency and the like.

Description

Bell jar type sintering furnace

Technical Field

The invention relates to sintering equipment, in particular to a bell jar type sintering furnace.

Background

The main structure of the bell jar type sintering furnace comprises a hearth, a feeding frame, a vertical lifting mechanism and the like, wherein the feeding frame is positioned below the hearth and is driven by the vertical lifting mechanism to enter and exit the hearth. During industrial production, a product to be fired is placed on the feeding frame, and then the feeding frame is lifted into the hearth through the vertical lifting mechanism to fire the product. After firing is finished, the vertical lifting mechanism drives the feeding frame to descend and exit the hearth, and finally the fired product is unloaded from the feeding frame. The whole feeding and discharging process is inconvenient to operate and low in efficiency, and when the bell-type sintering furnace is used for large-scale industrial production, the number of products on the feeding frame is large, the weight of the products is heavy (several hundred kilograms), and the required time in the feeding and discharging process is too long.

Disclosure of Invention

The invention aims to solve the technical problem of overcoming the defects of the prior art and provides the bell-type sintering furnace which is simple in structure, convenient to use and high in feeding and discharging efficiency.

In order to solve the technical problems, the invention adopts the following technical scheme:

a bell jar type sintering furnace comprises a hearth, a feeding frame and a vertical lifting mechanism, wherein the feeding frame and the vertical lifting mechanism are arranged below the hearth, a bearing table is arranged on the vertical lifting mechanism, a translation driving mechanism and a pair of telescopic guide rails are arranged on the bearing table, the feeding frame is arranged on the pair of telescopic guide rails, and the translation driving mechanism is in driving connection with the feeding frame.

As a further improvement of the above technical solution: the telescopic guide rail comprises an outer U-shaped sliding groove, a middle U-shaped sliding groove and an inner U-shaped sliding groove, wherein the middle U-shaped sliding groove is formed in the outer U-shaped sliding groove, the inner U-shaped sliding groove is formed in the middle U-shaped sliding groove, the outer U-shaped sliding groove is arranged on the bearing platform, a first protruding block is arranged on the outer side wall of the middle U-shaped sliding groove, a first groove matched with the first protruding block is formed in the inner side wall of the outer U-shaped sliding groove, a plurality of idler wheels are arranged on the upper side and the lower side of the first protruding block in a clamping mode between the first groove and the second groove, a second protruding block is arranged on the outer side wall of the inner U-shaped sliding groove, a second protruding block matched with the second groove is arranged on the inner side wall of the middle U-shaped sliding groove, a plurality of idler wheels are arranged on the.

As a further improvement of the above technical solution: the outer U-shaped sliding groove and the inner U-shaped sliding groove are both provided with guide pieces, one end of the bottom of the middle U-shaped sliding groove is provided with a first guide groove matched with the guide pieces on the outer U-shaped sliding groove, and the other end of the bottom of the middle U-shaped sliding groove is provided with a second guide groove matched with the guide pieces on the inner U-shaped sliding groove.

As a further improvement of the above technical solution: and roller stop blocks used for preventing the rollers from being separated are arranged in the first groove and the second groove.

As a further improvement of the above technical solution: the translation driving mechanism comprises a mounting seat mounted on the bearing table, a translation driving screw rod arranged on the mounting seat, and a nut sleeved on the translation driving screw rod, and the feeding frame is connected with the nut.

Compared with the prior art, the invention has the advantages that: the bell jar type sintering furnace disclosed by the invention is characterized in that the feeding frame is provided with a telescopic guide rail and a translation driving mechanism, the translation driving mechanism can be used for driving the feeding frame to translate along the telescopic guide rail during feeding, so that the feeding frame is moved out of a certain distance from the lower part of a hearth, products to be fired are conveniently placed on the feeding frame, after feeding is completed, the moving driving mechanism drives the feeding frame and the products to retract to the lower part of the hearth, then the vertical lifting mechanism drives the feeding frame and the products to integrally lift, and the products are fed into the hearth to complete feeding. In a similar way, after firing is completed, the feeding frame can be moved out of a certain distance and then unloaded, the structure is simple, and the convenience and the efficiency of feeding and discharging are improved.

Drawings

FIG. 1 is a schematic perspective view of a bell jar sintering furnace according to the present invention.

Fig. 2 is a schematic perspective view of the telescopic guide rail according to the present invention in an extended state.

Fig. 3 is an enlarged view at a in fig. 1.

Fig. 4 is a schematic cross-sectional view of a telescopic guide rail according to the present invention.

Fig. 5 is a top view of the outer U-shaped chute of the present invention.

Fig. 6 is a top view of the middle U-shaped chute of the present invention.

The reference numerals in the figures denote: 1. a hearth; 2. a feeding frame; 3. a vertical lifting mechanism; 4. a bearing table; 5. a translation drive mechanism; 51. a mounting seat; 52. a translation driving screw rod; 6. a telescopic guide rail; 61. an outer U-shaped chute; 611. a first groove; 62. a middle U-shaped chute; 621. a first bump; 622. a second groove; 623. a first guide groove; 624. a second guide groove; 63. an inner U-shaped chute; 631. a second bump; 632. mounting a plate; 7. a roller; 8. a guide member; 9. and a roller block.

Detailed Description

The invention is described in further detail below with reference to the figures and specific examples of the specification.

Fig. 1 to 6 show an embodiment of the invention, and the bell jar type sintering furnace of the embodiment includes a furnace chamber 1, a feeding frame 2 and a vertical lifting mechanism 3, which are arranged below the furnace chamber 1, wherein a bearing table 4 is installed on the vertical lifting mechanism 3, a translational driving mechanism 5 and a pair of telescopic guide rails 6 are installed on the bearing table 4, the feeding frame 2 is installed on the pair of telescopic guide rails 6, and the translational driving mechanism 5 is in driving connection with the feeding frame 2.

This bell jar formula fritting furnace, its work or material rest 2 disposes telescopic guide 6 and translation actuating mechanism 5, usable translation actuating mechanism 5 drives work or material rest 2 along telescopic guide 6 translation in the time of the material loading, make work or material rest 2 shift out certain distance from furnace 1 below, be convenient for place the product that will fire on work or material rest 2, after accomplishing the material loading, translation actuating mechanism 5 drives work or material rest 2 and the product retracts to furnace 1 below, drive work or material rest 2 and product by vertical lift mechanism 3 again and wholly go up and down, send the product into furnace 1, accomplish the material loading. In a similar way, after firing is completed, the feeding frame 2 can be moved out of a certain distance and then unloaded, the structure is simple, and the convenience and the efficiency of feeding and discharging are improved. The vertical lifting mechanism 3 is of an existing structure, and can be driven by a hydraulic cylinder to move up and down along a guide column to realize vertical lifting.

Further, as mentioned above, after the feeding frame 2 finishes feeding, the weight of the feeding frame can reach hundreds of kilograms, the requirement on the bearing capacity of the telescopic guide rail 6 is extremely high, and the conventional telescopic guide rail 6 cannot meet the requirement. For this purpose, the telescopic guide rail 6 in this embodiment is configured as follows: the telescopic guide rail 6 comprises an outer U-shaped sliding groove 61, a middle U-shaped sliding groove 62 arranged in the outer U-shaped sliding groove 61, and an inner U-shaped sliding groove 63 arranged in the middle U-shaped sliding groove 62, the outer U-shaped sliding groove 61 is installed on the bearing table 4, a first bump 621 is arranged on the outer side wall of the middle U-shaped sliding groove 62, a first groove 611 matched with the first bump 621 is arranged on the inner side wall of the outer U-shaped sliding groove 61, a plurality of idler wheels 7 are clamped between the upper side and the lower side of the first bump 621 and the first groove 611, a second bump 631 is arranged on the outer side wall of the inner U-shaped sliding groove 63, a second groove 622 matched with the second bump 631 is arranged on the inner side wall of the middle U-shaped sliding groove 62, a plurality of idler wheels 7 are clamped between the upper side and the lower side of the second bump 631 and the second groove 622, a mounting plate 632 is. The telescopic guide rail 6 adopts a three-section structure, is matched with each other through a groove and a lug in a positioning way, is provided with a plurality of rollers 7, has simple and reliable structure, and is manufactured locally. The telescopic guide rail 6 can meet the requirement of the telescopic amount, and can ensure smooth telescopic motion when being extended to be in a cantilever structure and in a heavy-weight bearing state, thereby avoiding the phenomena of blocking, deformation and the like. Wherein, each spout is preferred to be formed by the shaped steel welding, and gyro wheel 7 is preferred to be formed by cutting solid circular steel tube, and thickness is 5mm, diameter 13mm in this embodiment, and the cost of manufacture is low and can satisfy and bear the weight of the requirement.

Furthermore, in this embodiment, the guiding members 8 are installed at the bottom of the outer U-shaped sliding groove 61 and the bottom of the inner U-shaped sliding groove 63, one end of the bottom of the middle U-shaped sliding groove 62 is provided with a first guiding groove 623 which is matched with the guiding member 8 on the outer U-shaped sliding groove 61, and the other end of the bottom of the middle U-shaped sliding groove 62 is provided with a second guiding groove 624 which is matched with the guiding member 8 on the inner U-shaped sliding groove 63. The two guide members 8, the first guide groove 623 and the second guide groove 624 are matched with each other between the sliding grooves, so that the telescopic guide rail 6 can be ensured to be telescopic along the designed direction, and the deviation is avoided. And the guide 8 is arranged at the bottoms of the outer U-shaped sliding groove 61 and the inner U-shaped sliding groove 63, and the first guide groove 623 and the second guide groove 624 are arranged at the bottom of the middle U-shaped sliding groove 62, so that the guide 8 is prevented from interfering the telescopic movement of each sliding groove, and the structure is simple and reliable. Wherein, the guide 8 can be realized by screw, guide block, guide wheel, etc.

Further, in the present embodiment, a roller stopper 9 for preventing the roller 7 from falling off is disposed in each of the first groove 611 and the second groove 622. That is, the roller stopper 9 prevents the roller 7 from coming off from the first recess 611 and the second recess 622, thereby improving reliability.

Further, in this embodiment, the translation driving mechanism 5 includes a mounting base 51 mounted on the plummer 4, a translation driving screw 52 disposed on the mounting base 51, and a nut (hidden and not shown) sleeved on the translation driving screw 52, and the feeding frame 2 is connected to the nut. When the feeding frame 2 needs to be moved, the power parts such as the motor and the like can drive the translation driving screw rod 52 to rotate, and the nut can drive the feeding frame 2 to move along the translation driving screw rod 52.

Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make numerous possible variations and modifications to the present invention, or modify equivalent embodiments to equivalent variations, without departing from the scope of the invention, using the teachings disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should fall within the protection scope of the technical scheme of the present invention, unless the technical spirit of the present invention departs from the content of the technical scheme of the present invention.

Claims

1. The utility model provides a bell jar formula fritting furnace, includes furnace (1) and last work or material rest (2) and vertical lift mechanism (3) of locating furnace (1) below, its characterized in that: the automatic feeding device is characterized in that a bearing table (4) is installed on the vertical lifting mechanism (3), a translation driving mechanism (5) and a pair of telescopic guide rails (6) are installed on the bearing table (4), the feeding frame (2) is installed on the pair of telescopic guide rails (6), the translation driving mechanism (5) is in driving connection with the feeding frame (2), the telescopic guide rails (6) comprise outer U-shaped sliding grooves (61), middle U-shaped sliding grooves (62) arranged in the outer U-shaped sliding grooves (61) and inner U-shaped sliding grooves (63) arranged in the middle U-shaped sliding grooves (62), the outer U-shaped sliding grooves (61) are installed on the bearing table (4), first convex blocks (621) are arranged on the outer side wall of the middle U-shaped sliding grooves (62), first grooves (611) matched with the first convex blocks (621) are arranged on the inner side wall of the outer U-shaped sliding grooves (61), and a plurality of rollers (7) are clamped between the upper side and the lower side of the first convex blocks (621), a second convex block (631) is arranged on the outer side wall of the inner U-shaped sliding groove (63), a second groove (622) matched with the second convex block (631) is arranged on the inner side wall of the middle U-shaped sliding groove (62), a plurality of rollers (7) are clamped between the upper side and the lower side of the second bump (631) and the second groove (622), the upper part of the inner U-shaped chute (63) is provided with an installation plate (632), the feeding frame (2) is arranged on the installation plate (632), the bottoms of the outer U-shaped sliding chute (61) and the inner U-shaped sliding chute (63) are respectively provided with a guide piece (8), one end of the bottom of the middle U-shaped sliding groove (62) is provided with a first guide groove (623) matched with the guide piece (8) on the outer U-shaped sliding groove (61), and the other end of the bottom of the middle U-shaped sliding groove (62) is provided with a second guide groove (624) matched with the guide piece (8) on the inner U-shaped sliding groove (63).

2. The bell jar sintering furnace of claim 1 wherein: and roller stoppers (9) for preventing the rollers (7) from falling off are arranged in the first groove (611) and the second groove (622).

3. The bell jar sintering furnace according to any one of claims 1 to 2 wherein: the translation driving mechanism (5) comprises a mounting seat (51) mounted on the bearing table (4), a translation driving screw rod (52) arranged on the mounting seat (51) and a nut sleeved on the translation driving screw rod (52), and the feeding frame (2) is connected with the nut.