Cooling nozzle structure of vacuum quenching furnace

Abstract

The utility model discloses a cooling nozzle structure of a vacuum quenching furnace, which relates to the technical field of vacuum quenching furnaces, and comprises a connector, the interior of the connector is connected with a connecting pipe through a ball head structure, the interior of the connecting pipe is provided with a uniform spraying mechanism, and the outer side of the connecting pipe is provided with an adjusting mechanism. The uniform spraying mechanism comprises a mounting plate fixed to the top of the inner side of the connecting pipe, a connecting shaft is arranged in the mounting plate, a rotating fan is fixed to the top end of the connecting shaft, and connecting rods are symmetrically fixed to the bottom of the outer side wall of the connecting shaft. By means of the arrangement of the uniform spraying mechanism, when gas enters a connecting pipe, a rotating fan is impacted, so that the rotating fan rotates, a connecting shaft is driven to rotate, a connecting rod is driven to rotate, a spray head rotates, and a spray pipe on the outer side wall of the spray head is driven to rotate, the position of sprayed gas is prevented from being fixed, and spraying dead corners are avoided; uniform cooling is guaranteed, and the cooling effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of vacuum quenching furnace technology, specifically the structure of cooling nozzles for vacuum quenching furnaces. Background Technology

[0002] Vacuum quenching furnaces are highly advanced vacuum heat treatment equipment. Their excellent performance and unique design offer a wide range of applications for vacuum bright gas quenching, annealing, sintering of magnetic materials, and rapid cooling of high-precision parts made of alloy materials such as high-speed steel, mold steel, stainless steel, alloy steel, and titanium alloys. A vacuum quenching furnace consists of a heating furnace hood and a movable base frame. A crane is mounted on top of the square (or round) furnace hood, which uses chains and hooks to lift material baskets into the furnace chamber. The furnace hood is supported by structural steel and has a pneumatically (or electrically) operated furnace door at the bottom. The base frame, located below the furnace hood, can move and be positioned along a track. The base frame carries a quenching water tank and material baskets. During production, the material baskets on the base frame are moved directly below the furnace hood, the furnace door is opened, and the chains and hooks are lowered to lift the material baskets into the furnace chamber. After closing the furnace door, heating begins. During cooling, cooling gas is sprayed onto the material through nozzles to cool it.

[0003] Current nozzles are usually fixed direct-injection type, and the position of the ejected gas remains unchanged. This can easily lead to cooling dead zones in the gas ejected from the nozzle, resulting in uneven cooling and reduced cooling effect. To address this, we have proposed a cooling nozzle structure for vacuum quenching furnaces. Utility Model Content

[0004] The purpose of this invention is to provide a cooling nozzle structure for a vacuum quenching furnace, in order to solve the problem that the nozzles in the prior art are usually fixed direct-injection type, and the position of the ejected gas does not change, which easily leads to cooling dead zones in the ejected gas, resulting in uneven cooling and reduced cooling effect.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a cooling nozzle structure for a vacuum quenching furnace, including a connector, wherein a connecting pipe is connected inside the connector via a ball joint structure, a uniform spraying mechanism is provided inside the connecting pipe, and an adjustment mechanism is provided outside the connecting pipe;

[0006] The uniform spraying mechanism includes a mounting plate fixed to the top of the inner side of the connecting pipe. A connecting shaft is provided inside the mounting plate. A rotating fan is fixed to the top of the connecting shaft. Connecting rods are symmetrically fixed to the bottom of the outer side wall of the connecting shaft. A nozzle is fixed to the bottom of the connecting rod. A spray pipe is fixed to both the outer side wall and the bottom of the nozzle. A spiral plate is fixed inside the spray pipe.

[0007] Preferably, the uniform spraying mechanism further includes a first sealed bearing that passes through and is fixed to the top center of the mounting plate, and a second sealed bearing is fixed to the bottom of the inner wall of the connecting pipe.

[0008] Preferably, the connecting shaft is fixed to the inner ring sidewall of the first sealed bearing to facilitate the rotation of the connecting shaft, and the nozzle is fixedly connected to the inner ring sidewall of the second sealed bearing to facilitate the rotation of the nozzle.

[0009] Preferably, a graphite sealing material is provided between the connector and the connecting pipe to ensure sealing.

[0010] Preferably, the adjustment mechanism includes a mounting bracket fixed to the outer wall of the connector. A fixing hole is evenly provided through one bottom side of the mounting bracket. Rotating shafts are rotatably provided through both bottom sides of the mounting bracket. A turntable is fixed to one end of one rotating shaft. A connecting frame is fixed to one side of the turntable. A fixing rod is slidably provided through one middle side of the connecting frame. A connecting plate is fixed to the outer side of the fixing rod. A connecting spring is sleeved on the outer side of the fixing rod.

[0011] Preferably, the fixing holes are arranged circumferentially around the rotating shaft, which facilitates the fitting of the fixing rod with the fixing holes. The two rotating shafts are symmetrically fixed to the outer side wall of the connecting pipe, which facilitates the rotating shafts driving the connecting pipe to deflect when the turntable is rotated.

[0012] Preferably, the two ends of the connecting spring are fixedly connected to one side of the connecting plate and one side of the connecting frame, respectively, to facilitate the reset of the fixing rod. The fixing rod passes through the other side of the turntable, so that the fixing rod can be embedded in the fixing hole.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. In this application, the uniform spraying mechanism impacts the rotating fan when the gas enters the connecting pipe, causing the fan to rotate, which in turn drives the connecting shaft to rotate, which in turn drives the connecting rod to rotate, causing the nozzle to rotate, which in turn drives the nozzle pipe on the outer wall of the nozzle to rotate. This avoids the fixed position of the sprayed gas, avoids the existence of spray dead zones, ensures uniform cooling, and improves the cooling effect. Furthermore, when the gas is sprayed out through the nozzle, the spiral plate is used to concentrate the gas, accelerate the gas flow speed, and increase the gas impact force, resulting in a better cooling effect.

[0015] 2. In this application, by using the setting of the adjustment mechanism, after the connector is fixed, the fixing rod is pulled to move the connecting plate, which compresses the connecting spring. At the same time, the fixing rod is moved away from the fixing hole, and the turntable is rotated to drive the rotating shaft to rotate, thereby causing the connecting pipe to deflect and change the position of the nozzle. This allows for adjustment as needed, ensuring that the nozzle is aligned with the workpiece, guaranteeing the cooling effect, and improving the practicality of the device. Attached Figure Description

[0016] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the uniform spraying mechanism of this utility model;

[0018] Figure 3 This is a schematic diagram of the connecting rod installation structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the fixing hole structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the fixing rod installation structure of this utility model.

[0021] The following are the labeling elements in the diagram: 100, connector; 200, connecting pipe; 300, uniform spraying mechanism; 310, mounting plate; 311, first sealed bearing; 320, connecting shaft; 330, rotating fan; 340, connecting rod; 350, nozzle; 360, spray pipe; 370, spiral plate; 380, second sealed bearing; 400, adjusting mechanism; 410, mounting bracket; 420, fixing hole; 430, rotating shaft; 440, turntable; 450, connecting frame; 460, fixing rod; 470, connecting plate; 480, connecting spring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example: Figures 1-5 As shown, the present invention provides a technical solution for the cooling nozzle structure of a vacuum quenching furnace, including a connector 100, a connecting pipe 200 connected inside the connector 100 through a ball head structure, a uniform spraying mechanism 300 provided inside the connecting pipe 200, and an adjustment mechanism 400 provided outside the connecting pipe 200.

[0024] Please see Figure 2 and Figure 3The uniform spraying mechanism 300 includes a mounting plate 310 fixed to the top of the inner side of the connecting pipe 200. A connecting shaft 320 is disposed inside the mounting plate 310. A rotating fan 330 is fixed to the top of the connecting shaft 320. Connecting rods 340 are symmetrically fixed to the bottom of the outer side wall of the connecting shaft 320. A nozzle 350 is fixed to the bottom of the connecting rod 340. A spray pipe 360 ​​is fixed to both the outer side wall and bottom of the nozzle 350. A spiral plate 370 is fixed inside the spray pipe 360. The uniform spraying mechanism 300 also includes a first sealing bearing 311 that penetrates and is fixed to the middle of the top of the mounting plate 310. A second sealing bearing 380 is fixed to the bottom of the inner side wall of the connecting pipe 200. The connecting shaft 320 is fixed to the inner ring side wall of the first sealing bearing 311, and the nozzle 350 is fixed... The inner ring sidewall of the second sealed bearing 380 is connected; a graphite sealing material is provided between the connector 100 and the connecting pipe 200; by utilizing the uniform spraying mechanism 300, when the gas enters the interior of the connecting pipe 200, it impacts the rotating fan 330, thereby causing the rotating fan 330 to rotate, driving the connecting shaft 320 to rotate, thereby driving the connecting rod 340 to rotate, causing the nozzle 350 to rotate, and driving the spray pipe 360 ​​on the outer wall of the nozzle 350 to rotate, thereby avoiding the fixed position of the sprayed gas, avoiding the existence of spray dead angles, ensuring uniform cooling, and improving the cooling effect. Moreover, when the gas is sprayed out through the spray pipe 360, the spiral plate 370 is used to concentrate the gas, accelerate the gas flow speed, increase the gas impact force, and make the cooling effect even better.

[0025] Please see Figure 4 and Figure 5 The adjusting mechanism 400 includes a mounting bracket 410 fixed to the outer wall of the connector 100. Fixing holes 420 are evenly distributed through the bottom of one side of the mounting bracket 410. Rotating shafts 430 are rotatably inserted through the bottom of both sides of the mounting bracket 410. A turntable 440 is fixed to one end of one rotating shaft 430. A connecting bracket 450 is fixed to one side of the turntable 440. A fixing rod 460 slides through the middle of one side of the connecting bracket 450. A connecting plate 470 is fixed to the outer wall of the fixing rod 460. A connecting spring 480 is sleeved on the outer wall of the fixing rod 460. The fixing holes 420 are arranged circumferentially around the rotating shafts 430, and the two rotating shafts 430 are symmetrically fixed to the connecting pipe 20. The outer wall of 0; the two ends of the connecting spring 480 are fixedly connected to one side of the connecting plate 470 and one side of the connecting frame 450 respectively, and the fixing rod 460 passes through the other side of the turntable 440; by using the setting of the adjusting mechanism 400, after the connector 100 is fixed, the fixing rod 460 is pulled to move the connecting plate 470, which squeezes the connecting spring 480, and at the same time, the fixing rod 460 leaves the inside of the fixing hole 420. The turntable 440 is rotated, which drives the rotating shaft 430 to rotate, thereby causing the connecting pipe 200 to deflect and change the position of the nozzle 350, so as to facilitate adjustment as needed, so that the nozzle 350 is aligned with the workpiece, ensuring the cooling effect and improving the practicality of the device.

[0026] In use, the following steps are taken: First, install the connector 100. Then, pull the fixing rod 460 to move the connecting plate 470, compressing the connecting spring 480 and simultaneously disengaging the fixing rod 460 from the fixing hole 420. Rotate the turntable 440, causing the rotating shaft 430 to rotate, thereby deflecting the connecting pipe 200 and changing the position of the nozzle 350. Next, align the fixing rod 460 with the fixing hole 420, loosen the fixing rod 460, and allow the connecting spring 480 to reset, causing the fixing rod 460 to be embedded in the fixing hole 420, fixing the turntable 440. This adjusts the position of the nozzle 350, bringing it closer to the workpiece placement location. The position of the nozzle 350 can be adjusted as needed. During cooling, cooling gas enters the interior of the connecting pipe 200 from the connector 100 and impacts the rotating fan 330, causing the rotating fan 330 to rotate. This rotates the connecting shaft 320, which in turn rotates the connecting rod 340, causing the nozzle 350 to rotate. This, in turn, rotates the nozzle pipe 360 ​​on the outer wall of the nozzle 350, thus preventing the position of the sprayed gas from being fixed, avoiding spray dead zones, ensuring uniform cooling, and improving the cooling effect. Furthermore, when the gas is sprayed out through the nozzle 360, the spiral plate 370 is used to concentrate the gas, accelerate the gas flow speed, and increase the gas impact force, resulting in a better cooling effect.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. The structure of the cooling nozzle for a vacuum quenching furnace, characterized in that: Includes a connector (100), the inside of which is connected to a connecting pipe (200) via a ball joint structure, the inside of which is provided with a uniform spraying mechanism (300), and the outside of which is provided with an adjusting mechanism (400); The uniform spraying mechanism (300) includes a mounting plate (310) fixed to the top of the inner side of the connecting pipe (200). A connecting shaft (320) is provided inside the mounting plate (310). A rotating fan (330) is fixed to the top of the connecting shaft (320). A connecting rod (340) is symmetrically fixed to the bottom of the outer side wall of the connecting shaft (320). A nozzle (350) is fixed to the bottom of the connecting rod (340). A spray pipe (360) is fixed to both the outer side wall and the bottom of the nozzle (350). A spiral plate (370) is fixed inside the spray pipe (360).

2. The cooling nozzle structure of the vacuum quenching furnace according to claim 1, characterized in that: The uniform spraying mechanism (300) also includes a first sealed bearing (311) that passes through and is fixed in the middle of the top of the mounting plate (310), and a second sealed bearing (380) is fixed at the bottom of the inner wall of the connecting pipe (200).

3. The structure of the cooling nozzle for the vacuum quenching furnace according to claim 2, characterized in that: The connecting shaft (320) is fixed to the inner ring sidewall of the first sealed bearing (311), and the nozzle (350) is fixedly connected to the inner ring sidewall of the second sealed bearing (380).

4. The structure of the cooling nozzle for the vacuum quenching furnace according to claim 1, characterized in that: A graphite sealing material is provided between the connector (100) and the connecting pipe (200).

5. The structure of the cooling nozzle for the vacuum quenching furnace according to claim 1, characterized in that: The adjustment mechanism (400) includes a mounting bracket (410) fixed to the outer wall of the connector (100). A fixing hole (420) is evenly provided through one bottom side of the mounting bracket (410). A rotating shaft (430) is rotatably provided through both bottom sides of the mounting bracket (410). A turntable (440) is fixed to one end of one of the rotating shafts (430). A connecting bracket (450) is fixed to one side edge of the turntable (440). A fixing rod (460) is slidably provided through one middle side of the connecting bracket (450). A connecting plate (470) is fixed to the outer side edge of the fixing rod (460). A connecting spring (480) is sleeved on the outer side wall of the fixing rod (460).

6. The cooling nozzle structure of the vacuum quenching furnace according to claim 5, characterized in that: The fixing holes (420) are arranged in a circle around the rotating shaft (430), and the two rotating shafts (430) are symmetrically fixed to the outer side wall of the connecting pipe (200).

7. The cooling nozzle structure of the vacuum quenching furnace according to claim 5, characterized in that: The two ends of the connecting spring (480) are fixedly connected to one side of the connecting plate (470) and one side of the connecting frame (450), respectively, and the fixing rod (460) passes through the other side of the turntable (440).

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