Controllable cooling device of vacuum brazing furnace

Abstract

The utility model belongs to the technical field of vacuum brazing furnaces, and particularly relates to a controllable cooling device of a vacuum brazing furnace, which comprises a furnace body, a driving device is arranged above the furnace body, the driving device is fixedly connected with a rotating shaft, a tuyere variable adjusting device is arranged below the furnace body, a centrifugal impeller is arranged in the furnace body, and the rotating shaft is fixedly connected with the centrifugal impeller. A fan cover is arranged below the centrifugal impeller, a wind guide device is arranged below the fan cover, a heat exchanger is arranged below the wind guide device, a heat dissipation barrel is arranged below the heat exchanger, an auxiliary mechanism is arranged in the heat dissipation barrel, and the auxiliary mechanism comprises a rotating column. According to the controllable cooling device of the vacuum brazing furnace, a rotating shaft is driven to rotate through a driving device, the rotating shaft rotates to drive a rotating column to rotate, a plurality of sets of sliding rods are driven to slide back and forth in a sliding seat under the cooperation of a movable groove and a cylinder, and therefore an arc-shaped plate is driven to slide back and forth; and air circulation in the heat dissipation barrel can be accelerated through back-and-forth sliding of the arc-shaped plate.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum brazing furnaces, and specifically relates to a controllable temperature reduction device for a vacuum brazing furnace. Background Technique

[0002] A vacuum brazing furnace is a high-tech welding device, which is widely used in various industrial fields that require high-precision welding. Moreover, a vacuum brazing furnace is a device that can perform high-temperature heating in a vacuum environment to achieve brazing between metal workpieces.

[0003] At present, most of the existing vacuum brazing furnaces use natural temperature reduction or rapid temperature reduction. In the specific fields of ceramic brazing and metal brazing, the natural temperature reduction time efficiency is too low, and rapid temperature reduction will cause ceramic cracking or metal deformation. In view of this, we have proposed a controllable temperature reduction device for a vacuum brazing furnace. Content of the Utility Model

[0004] The main purpose of the utility model is to provide a controllable temperature reduction device for a vacuum brazing furnace, which can solve the problems raised in the above background technique.

[0005] To achieve the above purpose, a controllable temperature reduction device for a vacuum brazing furnace proposed by the utility model includes a furnace body. A driving device is provided above the furnace body, the driving device is fixedly connected with a rotating shaft, a variable air outlet regulating device is provided below the furnace body, a centrifugal impeller is provided inside the furnace body, a wind hood is provided below the centrifugal impeller, a wind guiding device is provided below the wind hood, a heat exchanger is provided below the wind guiding device, a heat dissipation barrel is provided below the heat exchanger, and an auxiliary mechanism is provided inside the heat dissipation barrel. The auxiliary mechanism includes:

[0006] A rotating column, the rotating column is fixedly connected with the rotating shaft, multiple groups of movable grooves are provided on the rotating column, and a cylinder is movably connected to the movable grooves.

[0007] Preferably, the cylinder is fixedly connected with a sliding rod, the sliding rod is slidably connected with a sliding seat, one end of the sliding rod away from the cylinder is fixedly connected with an arc-shaped plate, and there are multiple groups of sliding rods. By driving the rotation of the rotating shaft by the driving device, the rotation of the rotating shaft will drive the rotation of the rotating column. With the cooperation of the movable grooves and the cylinder, multiple groups of sliding rods will slide back and forth in the sliding seat, thereby driving the arc-shaped plate to slide back and forth. The back-and-forth sliding of the arc-shaped plate will accelerate the air circulation in the heat dissipation barrel.

[0008] Preferably, a fixing ring is fixedly connected below the sliding seat, the fixing ring is fixedly connected with a fixing rod, and one end of the fixing rod away from the fixing ring is fixedly connected with the inner wall of the heat dissipation barrel.

[0009] Preferably, the fixing rod is slidably connected with a movable plate.

[0010] Preferably, a first connecting block is fixedly connected to the arc-shaped plate. One end of the first connecting block away from the arc-shaped plate is rotatably connected to a first connecting rod, and one end of the first connecting rod away from the first connecting block is rotatably connected to a second connecting rod.

[0011] Preferably, one end of the second connecting rod away from the first connecting rod is rotatably connected to a second connecting block, and the second connecting block is fixedly connected to the side wall of the movable plate, which facilitates the movement of the arc-shaped plate to drive the movable plate to move together at the same time. With the cooperation of the first connecting block, the second connecting block, the first connecting rod and the second connecting rod, the back-and-forth movement of the arc-shaped plate will drive the movable plate to slide back and forth on the fixed rod, thereby further enhancing the air circulation effect in the heat dissipation barrel and further enhancing the cooling effect of the vacuum brazing furnace.

[0012] The utility model provides a controllable cooling device for a vacuum brazing furnace, which has the following beneficial effects:

[0013] (1) The controllable cooling device of the vacuum brazing furnace drives the rotation of the rotating shaft through the driving device. The rotation of the rotating shaft will drive the rotation of the rotating column. With the cooperation of the movable groove and the cylinder, a plurality of sliding rods will slide back and forth in the sliding seat, thereby driving the arc-shaped plate to slide back and forth. The back-and-forth sliding of the arc-shaped plate will accelerate the air circulation in the heat dissipation barrel.

[0014] (2) The controllable cooling device of the vacuum brazing furnace, with the cooperation of the first connecting block, the second connecting block, the first connecting rod and the second connecting rod, the back-and-forth movement of the arc-shaped plate will drive the movable plate to slide back and forth on the fixed rod, thereby further enhancing the air circulation effect in the heat dissipation barrel and further enhancing the cooling effect of the vacuum brazing furnace. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the structures shown in these drawings.

[0016] Figure 1 It is a schematic three-dimensional structure diagram of the whole of the present utility model;

[0017] Figure 2 It is a schematic three-dimensional sectional structure diagram of a part of the device of the present utility model Figure 1 ;

[0018] Figure 3 It is a schematic three-dimensional sectional structure diagram of a part of the device of the present utility model Figure 2 ;

[0019] Figure 4This is a schematic three-dimensional structure diagram of the auxiliary mechanism of the present utility model.

[0020] Explanation of the reference numerals in the attached drawings:

[0021] 1. Furnace body; 2. Driving device; 3. Air outlet variable adjustment device; 4. Centrifugal impeller; 5. Air hood; 6. Air guiding device; 7. Heat exchanger; 8. Heat dissipation barrel; 9. Auxiliary mechanism; 91. Rotating column; 92. Activity groove; 93. Cylinder; 94. Movable plate; 95. Arc-shaped plate; 96. Slide bar; 97. Sliding seat; 98. Fixed rod; 99. Fixed ring; 910. Connecting block one; 911. Link one; 912. Link two; 913. Connecting block two.

[0022] The realization, functional features and advantages of the purpose of the present utility model will be further described with reference to the embodiments and the attached drawings. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the attached drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0024] Please refer to Figures 1-4 , the present utility model provides a controllable temperature reduction device for a vacuum brazing furnace, including a furnace body 1. The furnace body 1 is made of ceramic material. An air outlet and a return air outlet are provided inside the furnace body 1. The return air outlet is controlled by a variable intake hole. A driving device 2 is provided above the furnace body 1. The driving device 2 is fixedly connected with a rotating shaft. An air outlet variable adjustment device 3 is provided below the furnace body 1. A centrifugal impeller 4 is provided inside the furnace body 1. An air hood 5 is provided below the centrifugal impeller 4. An air guiding device 6 is provided below the air hood 5. A heat exchanger 7 is provided below the air guiding device 6. A heat dissipation barrel 8 is provided below the heat exchanger 7. An auxiliary mechanism 9 is provided inside the heat dissipation barrel 8. The auxiliary mechanism 9 includes a rotating column 91. The rotating column 91 is fixedly connected with the rotating shaft. A plurality of activity grooves 92 are provided on the rotating column 91. The activity grooves 92 are movably connected with cylinders 93.

[0025] In the embodiment of the present utility model, in order to enable the auxiliary mechanism 9 to operate better, specifically, a slide bar 96 is fixedly connected to the cylinder 93, the slide bar 96 is slidably connected to a sliding seat 97, an arc-shaped plate 95 is fixedly connected to one end of the slide bar 96 away from the cylinder 93, and multiple groups of slide bars 96 are provided. By driving the rotation of the rotating shaft by the driving device 2, the rotation of the rotating shaft will drive the rotation of the rotating column 91. Under the cooperation of the moving groove 92 and the cylinder 93, multiple groups of slide bars 96 will slide back and forth in the sliding seat 97, thereby driving the arc-shaped plate 95 to slide back and forth. The back-and-forth sliding of the arc-shaped plate 95 will accelerate the air circulation in the heat dissipation barrel 8. A fixing ring 99 is fixedly connected to the lower part of the sliding seat 97, the fixing ring 99 is fixedly connected to a fixing rod 98, and one end of the fixing rod 98 away from the fixing ring 99 is fixedly connected to the inner wall of the heat dissipation barrel 8. The fixing rod 98 is slidably connected to a movable plate 94.

[0026] Furthermore, a connecting block one 910 is fixedly connected to the arc-shaped plate 95. One end of the connecting block one 910 away from the arc-shaped plate 95 is rotatably connected to a connecting rod one 911. One end of the connecting rod one 911 away from the connecting block one 910 is rotatably connected to a connecting rod two 912. One end of the connecting rod two 912 away from the connecting rod one 911 is rotatably connected to a connecting block two 913. The connecting block two 913 is fixedly connected to the side wall of the movable plate 94, which is convenient for the arc-shaped plate 95 to drive the movable plate 94 to move together when it moves. Under the cooperation of the connecting block one 910, the connecting block two 913, the connecting rod one 911 and the connecting rod two 912, the back-and-forth movement of the arc-shaped plate 95 will drive the movable plate 94 to slide back and forth on the fixing rod 98, thereby further strengthening the air circulation effect in the heat dissipation barrel 8, and further strengthening the cooling effect of the vacuum brazing furnace. At the same time, when the inside of the furnace body 1 is in an atmosphere state, the centrifugal fan extracts the high-temperature atmosphere in the furnace body 1 through the air outlet, first cools it through the heat exchanger 7, and then sprays it forward to the return air port through the air hood 5. And this return air port is controlled by variable intake holes, and can control the size of the return air automatically according to the cooling rate of the equipment and PID, so as to ensure its controllable cooling effect, and enable the vacuum brazing furnace to perform controllable rapid cooling according to the cooling rate of the product, which can not only improve the production efficiency of the ceramic vacuum brazing furnace, but also ensure that the ceramic parts will not crack while improving the efficiency.

[0027] In the present utility model, during use, the driving device 2 drives the rotation of the rotating shaft. The rotation of the rotating shaft drives the rotation of the rotating column 91. Under the cooperation of the movable slot 92 and the cylinder 93, a plurality of sliding rods 96 are driven to slide back and forth within the sliding seat 97, thereby driving the arc-shaped plate 95 to slide back and forth. The back-and-forth sliding of the arc-shaped plate 95 accelerates the air circulation in the heat dissipation barrel 8. At the same time, under the cooperation of the first connecting block 910, the second connecting block 913, the first connecting rod 911 and the second connecting rod 912, the back-and-forth movement of the arc-shaped plate 95 drives the movable plate 94 to slide back and forth on the fixed rod 98, thereby further enhancing the air circulation effect in the heat dissipation barrel 8, and further enhancing the cooling effect of the vacuum brazing furnace.

[0028] The above are only the preferred embodiments of the present utility model, and do not limit the patent scope of the present utility model. Any equivalent structural transformation made by using the content of the specification and drawings of the present utility model under the inventive concept of the present utility model, or direct / indirect application in other related technical fields is included in the patent protection scope of the present utility model.

Claims

1. A controllable temperature reduction device for a vacuum brazing furnace, comprising a furnace body (1), characterized in that: Above the furnace body (1), there is a driving device (2). The driving device (2) is fixedly connected with a rotating shaft. Below the furnace body (1), there is an air outlet variable adjustment device (3). Inside the furnace body (1), there is a centrifugal impeller (4). Below the centrifugal impeller (4), there is an air hood (5). Below the air hood (5), there is an air guiding device (6). Below the air guiding device (6), there is a heat exchanger (7). Below the heat exchanger (7), there is a heat dissipation barrel (8). Inside the heat dissipation barrel (8), there is an auxiliary mechanism (9). The auxiliary mechanism (9) includes: A rotating column (91). The rotating column (91) is fixedly connected with the rotating shaft. On the rotating column (91), there are multiple groups of movable slots (92). The movable slots (92) are movably connected with a cylinder (93).

2. The controllable cooling device of a vacuum brazing furnace according to claim 1, characterized in that: The cylinder (93) is fixedly connected with a sliding rod (96). The sliding rod (96) is slidably connected with a sliding seat (97). One end of the sliding rod (96) away from the cylinder (93) is fixedly connected with an arc-shaped plate (95).

3. The controllable temperature reduction device of a vacuum brazing furnace according to claim 2, wherein: Below the sliding seat (97), there is a fixed ring (99). The fixed ring (99) is fixedly connected with a fixed rod (98). One end of the fixed rod (98) away from the fixed ring (99) is fixedly connected with the inner wall of the heat dissipation barrel (8).

4. The controllable temperature reduction device of a vacuum brazing furnace according to claim 3, characterized in that: The fixed rod (98) is slidably connected with a movable plate (94).

5. The controllable temperature reduction device of a vacuum brazing furnace according to claim 2, characterized in that: On the arc-shaped plate (95), there is a connecting block one (910). One end of the connecting block one (910) away from the arc-shaped plate (95) is rotatably connected with a connecting rod one (911). One end of the connecting rod one (911) away from the connecting block one (910) is rotatably connected with a connecting rod two (912).

6. The controllable temperature reduction device of a vacuum brazing furnace according to claim 5, characterized in that: One end of the connecting rod two (912) away from the connecting rod one (911) is rotatably connected with a connecting block two (913).

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