Bar discharging shaft sealing mechanism of aluminum bar hot shearing furnace

Abstract

The utility model discloses an aluminum bar hot shear furnace bar outlet shaft sealing mechanism which comprises furnace body shells, a bar outlet assembly and a sealing assembly, the number of the furnace body shells is two, the bar outlet assembly transversely penetrates through the furnace body shells and a heat preservation body, and a first sealing plate and a second sealing plate are matched to play a sealing role between the bar outlet assembly and the furnace body shells. When the sealing mechanism for the bar discharging shaft of the aluminum bar hot shearing furnace is used, a gap between the connecting shaft and the furnace body shell is narrowed through cooperation of the second sealing plate and the first sealing plate, and the gap between the furnace body shell and the connecting shaft is narrowed through the first sealing plate and the second sealing plate, so that the gap between the connecting shaft and the furnace body shell is smaller than 1 cm; the first sealing plate and the second sealing plate are firmly fixed to the furnace body shell through the cooperation of the screw and the nut body, the space is reduced, the sealing effect is achieved, the sealing effect is further achieved through the cooperation of the sealing ring, and the heat loss speed is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of rod outlet shaft sealing mechanisms, in particular to a rod outlet shaft sealing mechanism for an aluminum rod hot shear furnace. Background Art

[0002] Hot frying furnaces are used in the pre-extrusion process of aluminum extrusion, primarily for heating aluminum bars. This innovative aluminum bar heating technology combines several new technologies, including natural gas-fired intensified heating and hydraulic hot shearing. When removing the aluminum bars from the hot shear, the bars must be removed from the furnace with the cooperation of a bar-out shaft. The shaft rotates, driving the finished aluminum bars to gradually exit the furnace. However, the bar-out shaft extends through the furnace, requiring a sealing mechanism between the furnace and the shaft. This sealing mechanism is constantly evolving with social development, and its type is also constantly being improved.

[0003] There are many types of such devices on the market today, which can basically meet people's usage needs, but there are still certain problems: if there is a large space between the connecting shaft and the furnace shell, the heat inside the furnace shell will be lost quickly. If the heat loss is too fast, the heat temperature inside the furnace shell will not be good, which will affect the heating treatment time of the aluminum rod. Utility Model Content

[0004] The purpose of the present utility model is to provide a rod outlet shaft sealing mechanism for an aluminum rod hot shear furnace, so as to solve the problem of a common aluminum rod hot shear furnace rod outlet shaft sealing mechanism currently on the market proposed in the above background technology. When an aluminum rod hot shear furnace rod outlet shaft sealing mechanism is used, if there is a large space between the connecting shaft and the furnace body shell, the heat inside the furnace body shell will be lost quickly. If the heat loss is too fast, the heat temperature inside the furnace body shell will be poor, which will affect the heating treatment time of the aluminum rod.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a sealing mechanism for a rod-discharging shaft of an aluminum rod hot shear furnace, comprising: a furnace body shell, a rod-discharging assembly, and a sealing assembly, wherein two furnace body shells are provided, and an insulating body is provided in the space between the two furnace body shells; the rod-discharging assembly passes through the furnace body shell and the insulating body horizontally, and an aluminum rod body is placed on the rod-discharging assembly; the sealing assembly is provided between the rod-discharging assembly and the furnace body shell, and the sealing assembly comprises a sealing plate 1 provided on the side close to the furnace body shell and a sealing plate 2 provided on the side away from the furnace body shell, and the sealing plate 1 and the sealing plate 2 are penetrated by the rod-discharging assembly, and the sealing plate 1 and the sealing plate 2 cooperate to seal the rod-discharging assembly and the furnace body shell.

[0006] Preferably, the rod-discharging assembly includes a connecting shaft that passes through the two furnace shells horizontally, a rod-discharging roller fixed to one side of the connecting shaft, and a load-bearing bearing installed on the outer wall bracket of the furnace shell through bolts and nuts, and the load-bearing bearing is penetrated by the rod-discharging roller.

[0007] Preferably, the rod-discharging roller is provided with a semi-arc groove at the middle position when viewed from the front, and the semi-arc groove is adapted to the aluminum rod body.

[0008] Preferably, the sealing assembly includes a screw fixed to the side of the sealing plate 1 away from the insulation body, and the screw passes through the furnace shell and the sealing plate 2, and a nut body is installed on the outside of one end of the screw through a thread.

[0009] Preferably, a sealing ring is installed on the outer wall of the furnace shell near the side of the load-bearing bearing, and the sealing ring is penetrated by the connecting shaft, and the sealing ring is located between the second sealing plate and the furnace shell.

[0010] Preferably, a cooling component is provided on one side of one of the sealing plates 2, and the cooling component includes a fixed block fixed to the outside of one of the sealing plates 2, a cooling pipe fixedly assembled on the inner wall of the fixed block, a water inlet pipe connected to one end of the cooling pipe, and a water outlet pipe connected to the other end of the cooling pipe.

[0011] Preferably, the outer wall of the water inlet pipe and the water outlet pipe extending to the outside of the fixed block is provided with threaded patterns, and the distance between the innermost circle of the cooling pipe and the outer wall of the connecting shaft is less than 1 cm.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. By using the second sealing plate and the first sealing plate to cooperate with each other to reduce the gap between the connecting shaft and the furnace shell, and using the first sealing plate and the second sealing plate to reduce the gap between the furnace shell and the connecting shaft, the gap between the connecting shaft and the furnace shell is made less than 1 cm, thereby achieving a sealing effect. The first sealing plate and the second sealing plate are firmly fixed to the furnace shell by the screw and the nut body. Due to the reduction of space, a sealing effect is achieved. At the same time, the cooperation of the sealing ring further plays a sealing role, reducing the heat loss rate;

[0014] 2. Connect the external water source through the water inlet pipe and connect the water pump. Use the liquid to flow along the cooling pipe along the water inlet pipe and finally flow out through the water outlet pipe. However, the flow of the liquid can dissipate heat outward through the cooling pipe, thereby cooling a part of the connecting shaft. Since the cooling pipe will not produce a large temperature difference at the cooling junction of the connecting shaft, it will not affect or shorten the service life of the connecting shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the sealing mechanism of the utility model;

[0016] Figure 2 This is a schematic diagram of the overall front view structure of the sealing mechanism of the utility model;

[0017] Figure 3 For this utility model Figure 2 A in the middle is an enlarged structural diagram;

[0018] Figure 4 This is a schematic diagram of the explosion structure between the rod outlet assembly and the furnace shell of the utility model.

[0019] In the figure: 1. Furnace shell; 2. Insulation body; 3. Aluminum rod body; 4. Rod discharge assembly; 41. Rod discharge roller; 42. Load-bearing bearing; 43. Connecting shaft; 5. Sealing assembly; 51. Sealing plate 1; 52. Sealing plate 2; 53. Screw; 54. Nut body; 6. Cooling assembly; 61. Fixing block; 62. Water inlet pipe; 63. Water outlet pipe; 64. Cooling pipe; 7. Sealing ring. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figure 1-4 The present invention provides a technical solution: a sealing mechanism for a rod discharge shaft of an aluminum rod hot shear furnace, comprising: a furnace shell 1, a sealing assembly 5, wherein two furnace shells 1 are provided, the furnace shells 1 being a double-layer type, and a heat-insulating body 2 is provided in the space between the two furnace shells 1; a rod discharge assembly 4, wherein the rod discharge assembly 4 passes through the furnace shell 1 and the heat-insulating body 2 transversely, and an aluminum rod 3 is placed on the rod discharge assembly 4; the rod discharge assembly 4 comprises a connecting shaft 43 passing through the two furnace shells 1 transversely, a rod discharge roller 41 fixed to one side of the connecting shaft 43, and a bearing bearing 42 mounted on the outer wall bracket of the furnace shell 1 by bolts and nuts, and the bearing bearing 42 is passed through by the rod discharge roller 41. The rod discharge roller 41 plays a bearing role for the aluminum rod 3, and the end of the connecting shaft 43 away from the rod discharge roller 41 is connected to a motor, and then the output shaft of the motor drives the connecting shaft 43 to rotate, and at this time, the rod discharge roller 41 rotates, which can process the aluminum rod 3 out of the furnace.

[0022] See also Figure 1-4The sealing assembly 5 is arranged between the rod-discharging assembly 4 and the furnace shell 1. The sealing assembly 5 includes a sealing plate 1 51 arranged on the side close to the furnace shell 1 and a sealing plate 2 52 arranged on the side away from the furnace shell 1. Pre-set holes are opened in the sealing plates 1 51 and 52. The sealing plates 1 51 and 52 are hidden and penetrated by the rod-discharging assembly 4. The sealing plates 1 51 and 52 are made of aluminum. The gap between the sealing plates 1 51 and 52 and the connecting shaft 43 is less than 1 cm, thereby reducing heat loss, the sealing plate 1 51 and the sealing plate 2 52 cooperate to seal the rod-discharging assembly 4 and the furnace shell 1, and the rod-discharging roller 41 is provided with a semi-arc groove at the middle position when viewed from the front, and the semi-arc groove is adapted to the aluminum rod body 3; the sealing assembly 5 includes a screw 53 integrally fixed to the sealing plate 1 51 on the side away from the insulation body 2, and the screw 53 passes through the furnace shell 1 and the sealing plate 2 52, and a nut body 54 is installed on the outside of one end of the screw 53 through a thread.

[0023] A sealing ring 7 is installed on the outer wall of the furnace shell 1 near the side of the load-bearing bearing 42. The sealing ring 7 is penetrated by the connecting shaft 43 and is located between the second sealing plate 52 and the furnace shell 1. Sealing plates 1 51 and 2 52 are placed on either side of the furnace shell 1. The screw 53 on sealing plate 1 51 penetrates the furnace shell 1 and the second sealing plate 52. The nut 54 and screw 53 cooperate to fix the first and second sealing plates 51 and 52 to the furnace shell 1. After the connecting shaft 43 penetrates the first and second sealing plates 51 and 52, the gap between the connecting shaft 43 and the first and second sealing plates 51 and 52 is less than 1 cm. With the cooperation of the sealing ring 7, a sealing effect is achieved, reducing the rate of heat loss within the furnace shell 1.

[0024] A cooling assembly 6 is installed on one side of one of the second sealing plates 52. This assembly includes a fixing block 61 integrally fixed to one side of the second sealing plate 52, and a cooling pipe 64 fixedly assembled to the inner wall of the fixing block 61. The cooling pipe 64 is spring-shaped. An inlet pipe 62 is connected to one end of the cooling pipe 64, and an outlet pipe 63 is connected to the other end. The inlet and outlet pipes 62 and 63 extend to the outer wall of the fixing block 61 and are threaded. The distance between the innermost circle of the cooling pipe 64 and the outer wall of the connecting shaft 43 is less than 1 cm. The water inlet pipe 62 can be connected to an external water pump, and the input end of the water pump is connected to an external water source. The low-temperature water source flows along the water inlet pipe 62 into the cooling pipe 64, flows along the cooling pipe 64, and flows out through the water outlet pipe 63. Since the low-temperature water source flows along the cooling pipe 64, the temperature inside the fixed block 61 is reduced, and the temperature of the connecting shaft 43 is reduced, thereby preventing the temperature on the connecting shaft 43 from being transmitted to the externally connected motor, thereby secretly extending the service life of the connecting shaft 43.

[0025] Working principle: First, during assembly, sealing plate 2 52 and sealing plate 1 51 are placed on both sides of the furnace shell 1, the screw 53 passes through sealing plate 2 52 and at this time, the nut body 54 is used to cooperate with sealing plate 2 52 to firmly fix sealing plate 1 51 and sealing plate 2 52, the connecting shaft 43 passes through the furnace shell 1 and the sealing plate 2 52 and the screw 53. When in use, the aluminum rod body 3 is on the rod discharge roller 41. However, with the cooperation of sealing plate 2 52, sealing plate 1 51 and sealing ring 7, a sealing effect is achieved, reducing the rate of heat loss; and when in use, the water inlet pipe 62 can be connected to an external water source, and the external water source uses a water pump to pump the liquid into the sealing plate 2 52. The liquid flows along the cooling pipe 64 and is discharged through the water outlet pipe 63. At this time, since the liquid flows along the cooling pipe 64, it can transfer the cold temperature to the connecting shaft 43, thereby reducing the surface temperature of the connecting shaft 43.

[0026] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sealing mechanism for the rod outlet shaft of an aluminum rod hot shear furnace, characterized by: include: A furnace shell (1), wherein two furnace shells (1) are provided, and a heat-insulating body (2) is provided in the space between the two furnace shells (1); A rod discharging assembly (4), the rod discharging assembly (4) horizontally passing through the furnace shell (1) and the heat-insulating body (2), and an aluminum rod body (3) is placed on the rod discharging assembly (4); A sealing assembly (5) is provided between the rod-discharging assembly (4) and the furnace shell (1), and the sealing assembly (5) comprises a sealing plate 1 (51) provided on the side close to the furnace shell (1) and a sealing plate 2 (52) provided on the side away from the furnace shell (1), wherein the sealing plate 1 (51) and the sealing plate 2 (52) are penetrated by the rod-discharging assembly (4), and the sealing plate 1 (51) and the sealing plate 2 (52) cooperate to perform a sealing function between the rod-discharging assembly (4) and the furnace shell (1).

2. The sealing mechanism for the rod outlet shaft of the aluminum rod hot shear furnace according to claim 1, characterized in that: The rod discharging assembly (4) comprises a connecting shaft (43) that passes through the two furnace shells (1) transversely, a rod discharging roller (41) fixed to one side of the connecting shaft (43), and a bearing (42) mounted on an outer wall bracket of the furnace shell (1) via bolts and nuts, and the bearing (42) is penetrated by the rod discharging roller (41).

3. The sealing mechanism for the rod outlet shaft of the aluminum rod hot shear furnace according to claim 2, characterized in that: The rod-discharging roller (41) is provided with a semi-arc groove at the middle position when viewed from the front, and the semi-arc groove is adapted to the aluminum rod body (3).

4. The sealing mechanism for the rod outlet shaft of the aluminum rod hot shear furnace according to claim 1, characterized in that: The sealing assembly (5) includes a screw (53) fixed to the side of the sealing plate (51) away from the heat-insulating body (2), and the screw (53) passes through the furnace shell (1) and the sealing plate (52), and a nut body (54) is installed on the outside of one end of the screw (53) through a thread.

5. The sealing mechanism for the rod outlet shaft of the aluminum rod hot shear furnace according to claim 1, characterized in that: A sealing ring (7) is installed on the outer wall of the furnace shell (1) near the side of the load-bearing bearing (42), and the sealing ring (7) is penetrated by the connecting shaft (43), and the sealing ring (7) is located between the second sealing plate (52) and the furnace shell (1).

6. The sealing mechanism for the rod outlet shaft of the aluminum rod hot shear furnace according to claim 5, characterized in that: A cooling assembly (6) is provided on one side of one of the sealing plates (52), and the cooling assembly (6) includes a fixing block (61) fixed to the outside of one of the sealing plates (52), a cooling pipe (64) fixedly assembled on the inner wall of the fixing block (61), a water inlet pipe (62) connected to one end of the cooling pipe (64), and a water outlet pipe (63) connected to the other end of the cooling pipe (64).

7. The sealing mechanism for the rod outlet shaft of the aluminum rod hot shear furnace according to claim 6, characterized in that: The water inlet pipe (62) and the water outlet pipe (63) are extended to the outer wall of the fixed block (61) and are provided with thread patterns. The distance between the innermost circle of the cooling pipe (64) and the outer wall of the connecting shaft (43) is less than 1 cm.

Images