A pneumatic opening hood for rare earth electrolytic furnace

Abstract

The utility model discloses a kind of pneumatic opening's air suction hoods for rare earth electrolytic furnace, including base main body and two relatively openable and closable cover shell assemblies, cover shell assembly includes cover and swing arm, swing arm is rotatably connected on base main body by pivot, pivot includes power input end and power output end, swing arm is fixedly connected to power output end at one end away from cover, further include cylinder and transmission structure, the output end of cylinder is transmissionally connected with power input end by transmission structure, to drive pivot to drive corresponding swing arm relative base main body rotation. With can realize the pneumatic opening of cover shell assembly, reduce the effect of manual cost and improve the safety of use.

Description

Technical Field

[0001] This utility model relates to the field of rare earth electrolysis furnace exhaust gas treatment technology, and in particular to a pneumatically operated suction hood for rare earth electrolysis furnaces. Background Technology

[0002] Chinese Patent CN215947426U discloses a combined exhaust gas collection device, including a side-mounted suction device, a top-mounted suction device, and an exhaust channel. The side-mounted suction device includes an openable side-mounted suction hood and a telescopic sleeve. The openable side-mounted suction hood can move axially in the horizontal direction by extending and retracting the telescopic sleeve. The openable side-mounted suction hood includes a left half and a right half, which are respectively connected to the same end of the telescopic sleeve through a rotating mechanism to open or close the hood. When the hood is closed, its side wall has an exhaust gas outlet communicating with the telescopic sleeve. The other end of the telescopic sleeve is connected to the exhaust channel. The top-mounted suction device is equipped with a top-mounted suction hood and a pipe assembly. The top-mounted suction hood is connected to the telescopic sleeve or the exhaust channel through the pipe assembly.

[0003] However, the above-mentioned exhaust gas collection device has the following drawbacks: the top suction hood of the exhaust gas collection device is composed of a left half and a right half. When the cathode is removed and replaced, it will cause interference to the top suction hood. It is necessary to manually open the left half and the right half relative to each other in order to safely remove the cathode from the smelting furnace. However, the left half and the right half are heavy, and the temperature of the left half and the right half is high after the equipment has just finished running. At this time, it is difficult to manually open the left half and the right half, and it is easy to cause burns. It needs to be improved. Utility Model Content

[0004] The purpose of this invention is to provide a pneumatically operated suction hood for rare earth electrolysis furnaces, which can realize the pneumatic opening of the hood assembly, reduce labor costs, and improve safety during use.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a pneumatically operated suction hood for a rare earth electrolysis furnace, comprising a base body and two relatively openable hood assemblies. Each hood assembly includes a cover and a swing arm. The swing arm is rotatably connected to the base body via a rotating shaft. The rotating shaft includes a power input end and a power output end. The end of the swing arm away from the cover is fixedly connected to the power output end. The system also includes a cylinder and a transmission structure. The output end of the cylinder is connected to the power input end via the transmission structure to drive the rotating shaft to rotate the corresponding swing arm relative to the base body.

[0006] By adopting the above technical solution, the piston rod of the cylinder extends and retracts, driving the rotating shaft to rotate forward or backward through the transmission structure. The rotating shaft drives the swing arm to move in the direction of opening or closing the cover. At the same time, by controlling the extension and retraction distance of the cylinder piston rod, the opening angle of the cover can be precisely controlled, avoiding the risk of burns that can easily occur when opening and closing manually, and saving labor costs. It has the effect of realizing the pneumatic opening of the cover assembly, reducing labor costs and improving the safety of use.

[0007] A further feature of this invention is that the transmission structure includes a rack and a gear, the gear is coaxially fixed to the power input end of the rotating shaft, the end of the rack is fixedly connected to the end of the piston rod of the cylinder, and the rack meshes with the gear.

[0008] By adopting the above technical solution, the cylinder drives the rack to translate, and the rack drives the gear to rotate the shaft forward or backward.

[0009] A further feature of this invention is that a guide structure is provided between the rack and the base body, and the rack slides linearly along the tangential direction of the gear through the guide structure.

[0010] By adopting the above technical solution, the guide structure can improve the consistency of the rack translation direction, thereby improving the stability of the operation of this utility model.

[0011] A further feature of this invention is that the guiding structure includes a plurality of guide wheels rotatably mounted on the base body, the plurality of guide wheels being disposed opposite to each other on both sides of the rack, and the outer rings of the guide wheels rollingly engaging with the outer wall of the rack.

[0012] A further feature of this invention is that the base body includes a mounting platform, a dust cover is provided on the mounting platform, the rotating shaft is rotatably mounted on the mounting platform, a receiving cavity is formed between the dust cover and the mounting platform, and the transmission structure is built into the receiving cavity.

[0013] By adopting the above technical solution, the addition of a dust cover can prevent dust and oil stains from falling onto the transmission structure and causing the transmission process of this utility model to jam.

[0014] A further feature of this invention is that the rotating shaft is arranged parallel to the height direction of the base body, the rack is slidably arranged along the horizontal direction of the base body, and the sliding direction of the rack is perpendicular to the axial direction of the rotating shaft.

[0015] By adopting the above technical solution, the horizontal driving force of the rack is converted into a vertical axial rotational force after being transmitted by the gears, thereby driving the shaft to rotate along the vertical axial direction.

[0016] A further feature of this invention is that the piston rod end of the cylinder is provided with a mounting bracket, and the end of the rack near the cylinder is oscillatingly connected to the mounting bracket via a pin.

[0017] By adopting the above technical solution, the translation direction of the rack can be slightly modified according to the usage environment, ensuring stable meshing between the rack and gear for transmission.

[0018] A further feature of this invention is that the base body is fixedly provided with a bushing, and the bushing is provided with a rotating hole through which the rotating shaft passes, and the rotating shaft is rotatably disposed within the rotating hole.

[0019] A further feature of this invention is that the rotating shaft is provided with a plurality of bearings, and the rotating shaft is rotatably disposed in the rotating hole through the bearings.

[0020] By adopting the above technical solution and adding bearings, the smoothness of the shaft rotation within the bushing can be improved.

[0021] A further feature of this invention is that a sealing ring is fixedly provided at the bottom of the bushing, the rotating shaft rotatably passes through the sealing ring, and a locking nut is provided on the rotating shaft, with the bearing and the locking nut engaging in an anti-disengagement cooperation.

[0022] By adopting the above technical solution, the sealing ring and the locking nut cooperate with each other to prevent the upper and lower ends of the shaft from falling off, so that the shaft can be stably installed in the bushing, improving the anti-fall-off and sealing effect at both ends of the shaft.

[0023] In summary, this utility model has the following beneficial effects:

[0024] The device employs a design where a swing arm is connected to one end of the cover, and a rotating shaft is fixedly connected to the end of the swing arm away from the cover. A bushing is installed on the base body corresponding to the rotating shaft, which is rotatably mounted within the bushing. A gear is coaxially fixed at the power input end of the rotating shaft, and a cylinder is installed on the base body. A rack is connected to the piston rod end of the cylinder, and the rack meshes with the gear to achieve transmission. The extension and retraction of the piston rod of the cylinder drives the rotating shaft to rotate forward or backward through the transmission structure. The rotating shaft drives the swing arm to move in the direction of opening or closing the cover. At the same time, the opening angle of the cover can be precisely controlled by controlling the extension and retraction distance of the cylinder piston rod, avoiding the risk of burns that can easily occur when manually opening and closing the cover, and saving labor costs. It has the effects of enabling pneumatic opening of the cover assembly, reducing labor costs, and improving safety in use. Attached Figure Description

[0025] Figure 1 This is an overall structural diagram of the present invention.

[0026] Figure 2 This is a utility model Figure 1 A longitudinal sectional view.

[0027] Figure 3 This is a utility model Figure 2 A magnified view of a portion of region A in the middle.

[0028] Figure 4 This is an exploded view of this utility model.

[0029] Figure 5 This is a view of the housing assembly of this utility model in the open state.

[0030] In the diagram: 1. Base body; 11. Mounting platform; 111. Guide wheel; 12. Dust cover; 13. Receiving cavity; 14. Bushing; 141. Rotating hole; 142. Sealing ring; 2. Cover assembly; 21. Cover; 22. Swing arm; 3. Rotating shaft; 31. Power input end; 32. Power output end; 33. Bearing; 34. Locking nut; 4. Cylinder; 41. Mounting bracket; 5. Rack; 6. Gear. Detailed Implementation

[0031] The present invention will be further described below with reference to the accompanying drawings.

[0032] A pneumatically operated suction hood for a rare earth electrolysis furnace, such as Figures 1-3 As shown, the system includes a base body 1 and two relatively openable cover assemblies 2. Each cover assembly 2 includes a cover 21 and a swing arm 22. The swing arm 22 is rotatably connected to the base body 1 via a rotating shaft 3. The rotating shaft 3 includes a power input end 31 and a power output end 32. The end of the swing arm 22 away from the cover 21 is fixedly connected to the power output end 32. The system also includes a cylinder 4 and a transmission structure. The output end of the cylinder 4 is connected to the power input end 31 via the transmission structure to drive the rotating shaft 3 to rotate the corresponding swing arm 22 relative to the base body 1. In this embodiment, one side of the cover assembly 2 is driven to rotate by the cylinder 4, while the other side is driven to rotate by the cylinder 4. The rotating shaft 3 of 2 is fixedly installed on the base body 1. The corresponding swing arm 22 is rotatably connected to the rotating shaft 3, and a damping structure is provided between the swing arm 22 and the rotating shaft 3. The damping structure can realize the suspension and positioning of the corresponding swing arm 22 at any rotation angle. The base body 1 includes a mounting platform 11. A dust cover 12 is provided on the mounting platform 11. The rotating shaft 3 is rotatably set on the mounting platform 11. A receiving cavity 13 is formed between the dust cover 12 and the mounting platform 11. The transmission structure is built into the receiving cavity 13. The addition of the dust cover 12 can prevent dust and oil stains from falling onto the transmission structure and causing jamming in the transmission process of this utility model.

[0033] like Figures 1-5As shown, the transmission structure includes a rack 5 and a gear 6. The gear 6 is coaxially fixed to the power input end 31 of the rotating shaft 3. The end of the rack 5 is fixedly connected to the piston rod end of the cylinder 4, and the rack 5 meshes with the gear 6. The cylinder 4 drives the rack 5 to translate, and the rack 5 drives the gear 6 to drive the rotating shaft 3 to rotate forward or backward. A guide structure is provided between the rack 5 and the base body 1. The rack 5 slides linearly along the tangent direction of the gear 6 through the guide structure. The guide structure can improve the consistency of the translation direction of the rack 5, thereby improving the smoothness of the operation of this utility model. The guide structure includes a plurality of guide wheels 111 rotatably mounted on the base body 1. The plurality of guide wheels 111 are arranged opposite to each other on both sides of the rack 5. Furthermore, the outer ring of the guide wheel 111 rolls with the outer wall of the rack 5; the rotating shaft 3 is arranged parallel to the height direction of the base body 1, and the rack 5 is slidably arranged in the horizontal direction of the base body 1, and the sliding direction of the rack 5 is perpendicular to the axial direction of the rotating shaft 3, so that the horizontal driving force of the rack 5 is converted into the vertical axial rotational force after being transmitted by the gear 6, thereby driving the rotating shaft 3 to rotate in the vertical axial direction; the piston rod end of the cylinder 4 is provided with a mounting bracket 41, and the end of the rack 5 near the cylinder 4 is oscillatingly connected to the mounting bracket 41 by a pin, so that the translational direction of the rack 5 can be slightly corrected according to the usage environment, ensuring that the rack 5 and the gear 6 mesh stably for transmission.

[0034] like Figures 2-5 As shown, the base body 1 is fixedly provided with a bushing 14, and the bushing 14 is provided with a rotating hole 141 through which the rotating shaft 3 passes. The rotating shaft 3 is rotatably disposed in the rotating hole 141. Several bearings 33 are provided on the outside of the rotating shaft 3. The rotating shaft 3 is rotatably disposed in the rotating hole 141 through the bearings 33. The addition of the bearings 33 can improve the smoothness of the rotation of the rotating shaft 3 in the bushing 14. A sealing ring 142 is fixedly provided at the bottom of the bushing 14. The rotating shaft 3 rotatably passes through the sealing ring 142, and a locking nut 34 is provided on the rotating shaft 3. The bearings 33 and the locking nut 34 are anti-disengagement engaged. The sealing ring 142 and the locking nut 34 cooperate with each other to prevent disengagement and limit the upper and lower ends of the rotating shaft 3, so that the rotating shaft 3 is stably installed in the bushing 14, improving the anti-disengagement and sealing effect at both ends of the rotating shaft 3.

[0035] The basic working principle of this utility model is as follows: a swing arm 22 is connected to one end of the cover 21, and a rotating shaft 3 is fixedly connected to the end of the swing arm 22 away from the cover 21. A bushing 14 is set on the base body 1 corresponding to the rotating shaft 3. The rotating shaft 3 is rotatably set in the bushing 14. A gear 6 is coaxially fixed on the power input end 31 of the rotating shaft 3. A cylinder 4 is set on the base body 1. A rack 5 is connected to the piston rod end of the cylinder 4. The rack 5 meshes with the gear 6 to realize transmission. The piston rod of the cylinder 4 extends and retracts, driving the rotating shaft 3 to rotate forward or backward through the transmission structure. The rotating shaft 3 drives the swing arm 22 to move in the direction of opening or closing the cover 21. At the same time, the opening angle of the cover 21 can be precisely controlled by controlling the extension and retraction distance of the piston rod of the cylinder 4. This avoids the situation of easy burns caused by manual opening and closing, and saves labor costs. It has the effects of realizing pneumatic opening of the cover assembly, reducing labor costs and improving safety in use.

[0036] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A pneumatically operated suction hood for a rare earth electrolysis furnace, comprising a base body (1) and two relatively openable hood assemblies (2), wherein each hood assembly (2) includes a cover (21) and a swing arm (22), the swing arm (22) being rotatably connected to the base body (1) via a rotating shaft (3), characterized in that: The rotating shaft (3) includes a power input end (31) and a power output end (32). The end of the swing arm (22) away from the cover (21) is fixedly connected to the power output end (32). It also includes a cylinder (4) and a transmission structure. The output end of the cylinder (4) is connected to the power input end (31) through the transmission structure to drive the rotating shaft (3) to rotate the corresponding swing arm (22) relative to the base body (1).

2. The pneumatically operated suction hood for a rare earth electrolysis furnace according to claim 1, characterized in that: The transmission structure includes a rack (5) and a gear (6). The gear (6) is coaxially fixed at the power input end (31) of the rotating shaft (3). The end of the rack (5) is fixedly connected to the end of the piston rod of the cylinder (4), and the rack (5) meshes with the gear (6).

3. The pneumatically operated suction hood for a rare earth electrolysis furnace according to claim 2, characterized in that: A guide structure is provided between the rack (5) and the base body (1), and the rack (5) slides linearly along the tangential direction of the gear (6) through the guide structure.

4. A pneumatically operated suction hood for a rare earth electrolysis furnace according to claim 3, characterized in that: The guide structure includes a plurality of guide wheels (111) rotatably mounted on the base body (1), the plurality of guide wheels (111) being arranged opposite to each other on both sides of the rack (5), and the outer ring of the guide wheel (111) rollingly engaging with the outer wall of the rack (5).

5. A pneumatically operated suction hood for a rare earth electrolysis furnace according to claim 1, characterized in that: The base body (1) includes a mounting platform (11), a dust cover (12) is provided on the mounting platform (11), the rotating shaft (3) is rotatably mounted on the mounting platform (11), a receiving cavity (13) is formed between the dust cover (12) and the mounting platform (11), and the transmission structure is built into the receiving cavity (13).

6. A pneumatically operated suction hood for a rare earth electrolysis furnace according to claim 2, characterized in that: The rotating shaft (3) is arranged parallel to the height direction of the base body (1), the rack (5) is slidably arranged along the horizontal direction of the base body (1), and the sliding direction of the rack (5) is perpendicular to the axial direction of the rotating shaft (3).

7. A pneumatically operated suction hood for a rare earth electrolysis furnace according to claim 2, characterized in that: The piston rod end of the cylinder (4) is provided with a mounting bracket (41), and the rack (5) is oscillatingly connected to the mounting bracket (41) at one end near the cylinder (4) by a pin.

8. A pneumatically operated suction hood for a rare earth electrolysis furnace according to claim 1, characterized in that: The base body (1) is fixedly provided with a bushing (14), and the bushing (14) is provided with a rotating hole (141) through the rotating shaft (3), and the rotating shaft (3) is rotatably disposed in the rotating hole (141).

9. A pneumatically operated suction hood for a rare earth electrolysis furnace according to claim 8, characterized in that: The rotating shaft (3) is provided with several bearings (33), and the rotating shaft (3) is rotatably disposed in the rotating hole (141) through the bearings (33).

10. A pneumatically operated suction hood for a rare earth electrolysis furnace according to claim 9, characterized in that: A sealing ring (142) is fixedly provided at the bottom of the bushing (14), the rotating shaft (3) is rotatably inserted through the sealing ring (142), and a locking nut (34) is provided on the rotating shaft (3), and the bearing (33) is anti-disengaged from the locking nut (34).

Images