Furnace door fixing structure

Abstract

The utility model relates to a furnace door fixing structure which comprises a locking ring, a connecting plate for splicing the locking ring, a bolt for limiting the position of the connecting plate and a roller convenient for rotating the locking ring, the locking ring is semicircular; the two locking rings form a whole circle; the connecting plate is arranged at the joint of the two groups of locking rings; the bolt is used for fixing the connecting plate to the locking ring; a plurality of spline grooves are formed in the locking ring; a spline boss is arranged between the two groups of spline grooves; the spline boss corresponds to the furnace door flange; the roller is rotationally connected into the spline groove; and the roller is in contact with the furnace body flange. The problems that a furnace door fixing structure is complex in process, prone to deformation and complex in welding process are solved.

Description

Technical Field

[0001] This utility model relates to the field of vacuum furnaces, and in particular to a furnace door fixing structure. Background Technology

[0002] A vacuum furnace is a furnace chamber where a vacuum system (composed of a vacuum pump, vacuum measuring device, vacuum valves, and other carefully assembled components) is used to remove some of the material from the chamber, reducing the pressure inside to less than one atmosphere, thus creating a vacuum. Traditional boiler door fixing structures are complex, prone to deformation, and require complex welding processes. Utility Model Content

[0003] This application provides a furnace door fixing structure that solves the problems of complex manufacturing processes, easy deformation, and complicated welding processes in the prior art.

[0004] The technical solutions adopted in the embodiments of this application are as follows.

[0005] A furnace door fixing structure includes a locking ring, a connecting plate for splicing the locking ring, bolts for limiting the position of the connecting plate, and rollers for facilitating the rotation of the locking ring; the locking ring is semi-circular; two locking rings form a complete circle; the connecting plate is disposed at the connection point of the two sets of locking rings; the bolts fix the connecting plate to the locking ring; the locking ring has a plurality of splined grooves; a splined boss is disposed between the two sets of splined grooves; the splined boss corresponds to the furnace door flange; the rollers are rotatably connected within the splined grooves; the rollers contact the furnace body flange.

[0006] As a further improvement to the above technical solution: a shaft is provided on the locking ring; a screw is threaded onto the locking ring; the screw restricts the position of the shaft.

[0007] As a further improvement to the above technical solution: the roller circumferential array is provided in eight groups.

[0008] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0009] 1. Due to the use of a semi-circular locking ring structure, two locking rings can be spliced ​​into a complete circle. The two connection points are connected using connecting plates and then fixed with bolts. Rollers are provided on the locking ring, and the rollers use small axles as rotating shafts to roll, which are then secured with screws. The eight rollers on the locking ring are evenly distributed around the circumference. The locking ring is secured to the outside of the furnace door flange and the furnace body flange. The splined boss can be engaged with the corresponding boss on the furnace door flange to achieve the locking function. When the locking ring rotates, the splined groove aligns with the flange boss, allowing the furnace door to open. The rollers on the locking ring reduce the resistance when the locking ring rotates with the furnace door and furnace body flanges and support the locking ring on the furnace body, thereby achieving splicing to prevent deformation and buffering the force on the furnace door during rotation. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the furnace door fixing structure in this utility model.

[0011] Figure 2 This is a cross-sectional view of the central shaft, screw, and roller of this utility model.

[0012] In the diagram: 1. Locking ring; 2. Connecting plate; 3. Bolt; 4. Roller; 5. Spline groove; 6. Spline boss; 7. Shaft; 8. Screw. Detailed Implementation

[0013] This application provides a furnace door fixing structure that solves the problems of complex manufacturing processes, easy deformation, and complicated welding processes in the prior art.

[0014] The technical solution in this application embodiment is to solve the above problems, and the overall idea is as follows:

[0015] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0016] A furnace door fixing structure includes a locking ring 1, a connecting plate 2 for splicing the locking ring 1, bolts 3 for limiting the position of the connecting plate 2, and rollers 4 for facilitating the rotation of the locking ring 1; the locking ring 1 is semi-circular; two locking rings 1 form a complete circle; the connecting plate 2 is set at the connection of the two sets of locking rings 1; the bolts 3 fix the connecting plate 2 to the locking ring 1; the locking ring 1 has several splined grooves 5; a splined boss 6 is provided between the two sets of splined grooves 5; the splined boss 6 corresponds to the furnace door flange; the rollers 4 are rotatably connected in the splined grooves 5; the rollers 4 are in contact with the furnace body flange.

[0017] A shaft 7 is provided on the locking ring 1; a screw 8 is threadedly connected to the locking ring 1; the screw 8 restricts the position of the shaft 7.

[0018] The rollers are arranged in a circular array of eight groups.

[0019] The locking ring 1 is a semi-circular structure. Two locking rings 1 can be spliced ​​together to form a complete circle. The two connection points are connected by a connecting plate 2 and then fixed with bolts 3. Rollers 4 are provided on the locking ring 1. The rollers 4 use a small shaft as a rotating axle to roll, and the small shaft is locked with screws 8. There are eight rollers 4 evenly distributed around the circumference of the locking ring 1. The locking ring 1 is locked on the outside of the furnace door flange and the furnace body flange. The spline boss 6 can be locked with the corresponding boss of the furnace door flange to achieve the locking function. When the locking ring 1 rotates, the spline groove 5 aligns with the flange boss, which can open the furnace door. The function of the rollers 4 on the locking ring 1 is to reduce the resistance when the locking ring 1 rotates with the furnace door and furnace body flanges and to support the locking ring 1 on the furnace body.

[0020] Because the locking ring 1 is a semi-circular structure, two locking rings 1 can be spliced ​​into a complete circle. The two connection points are connected by connecting plates 2 and then fixed with bolts 3. Rollers 4 are provided on the locking ring 1. The rollers 4 use small shafts as rotating axes to roll, and the small shafts are locked with screws 8. The eight rollers 4 on the locking ring 1 are evenly distributed around the circumference. The locking ring 1 is locked on the outside of the furnace door flange and the furnace body flange. The spline boss 6 can be locked with the corresponding boss on the furnace door flange to achieve the locking function. When the locking ring 1 rotates, the spline groove 5 aligns with the flange boss, which can open the furnace door. The function of the rollers 4 on the locking ring 1 is to reduce the resistance when the locking ring 1 rotates with the furnace door and furnace body flanges and to support the locking ring 1 on the furnace body, thereby achieving splicing to prevent deformation and buffering the force on the furnace door during rotation.

[0021] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0022] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A furnace door fixing structure, characterized in that, The system includes a locking ring (1), a connecting plate (2) for splicing the locking ring (1), bolts (3) for limiting the position of the connecting plate (2), and rollers (4) for facilitating the rotation of the locking ring (1). The locking ring (1) is semi-circular. Two locking rings (1) form a complete circle. The connecting plate (2) is set at the connection point of the two sets of locking rings (1). The bolts (3) fix the connecting plate (2) to the locking ring (1). The locking ring (1) has several spline grooves (5). A spline boss (6) is provided between the two sets of spline grooves (5). The spline boss (6) corresponds to the furnace door flange. The rollers (4) are rotatably connected in the spline grooves (5). The rollers (4) are in contact with the furnace body flange.

2. The door fixing structure according to claim 1, wherein A shaft (7) is provided on the locking ring (1); a screw (8) is threaded onto the locking ring (1); the screw (8) restricts the position of the shaft (7).

3. The door fixing structure according to claim 2, wherein The rollers (4) are arranged in eight groups in a circular array.

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