Electrically opened suction hood for rare earth electrolysis furnace

Abstract

The utility model discloses an electric type opening's air suction cover for rare earth electrolytic furnace, including base main body, first cover shell subassembly and second cover shell subassembly can be opposite and open, first cover shell subassembly includes first cover plate and first connecting arm, and the base main body is fixed with first mounting bracket, and the first mounting bracket is rotationally equipped with first pivot, and the first pivot includes power input end and power output end, and the first connecting arm is fixedly connected with power output end in the end away from first cover plate, and the first mounting bracket is fixedly connected with motor, and the output shaft of motor is connected power output end through coupling. Have the effect that can realize the electric opening or close of air suction cover, reduce the manual cost and improve the use safety.

Description

Technical Field

[0001] This utility model relates to the field of tail gas absorption technology for rare earth electrolysis furnaces, and in particular to an electrically operated suction hood for rare earth electrolysis furnaces. Background Technology

[0002] A Chinese patent with publication number CN215947423U discloses a ring-shaped suction device, comprising an openable ring-shaped suction hood and a telescopic sleeve connected to each other. The openable ring-shaped suction hood can move horizontally by extending and retracting the telescopic sleeve. The openable ring-shaped 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 and can rotate inward and outward around the rotating mechanism to realize the opening or closing of the openable ring-shaped suction hood. After the openable ring-shaped suction hood is closed, its side wall has an exhaust gas outlet communicating with the telescopic sleeve.

[0003] However, the aforementioned annular side suction device has the following drawbacks: the opening and closing annular side suction hood of the annular side suction device is composed of a left half and a right half. When the cathode is removed and replaced, interference will occur in order to lift the 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 melting 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 is urgent to improve it. Utility Model Content

[0004] The purpose of this invention is to provide an electrically operated suction hood for rare earth electrolysis furnaces, which can realize the electric opening or closing of the suction hood, 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: an electrically operated suction hood for a rare earth electrolysis furnace, comprising a base body, a first cover assembly and a second cover assembly that can be opened and closed relative to each other, the first cover assembly comprising a first cover plate and a first connecting arm, the base body being fixedly provided with a first mounting frame, the first mounting frame being rotatably provided with a first rotating shaft, the first rotating shaft comprising a power input end and a power output end, the end of the first connecting arm away from the first cover plate being fixedly connected to the power output end, the first mounting frame being fixedly connected with a motor, the output shaft of the motor being connected to the power output end through a coupling.

[0006] By adopting the above technical solution, the motor drives the first rotating shaft to rotate through the coupling. The first rotating shaft drives the first cover plate to rotate relative to the second cover assembly in the opening or closing direction through the first connecting arm. This utility model uses a motor to realize the electric opening and closing of the first cover assembly, saving labor costs and avoiding burns caused by manual opening. In addition, when the first cover assembly is opened to a predetermined angle relative to the second cover assembly, the motor can stably suspend the first cover assembly in the corresponding position, avoiding the situation where the first cover assembly closes accidentally due to its own weight due to levelness. This improves the safety of cathode extraction in this utility model, and has the effects of realizing the electric opening or closing of the suction hood, reducing labor costs and improving safety of use.

[0007] A further feature of this invention is that the first mounting bracket has a bushing fixed at one end away from the motor, and the first rotating shaft is rotatably disposed within the bushing.

[0008] By adopting the above technical solution, the addition of the bushing can improve the concentricity of the rotation center of the first rotating shaft, thereby making the horizontal rotation of the first cover assembly relative to the second cover assembly more consistent, reducing the error when the first cover assembly rotates to the closed position relative to the second cover assembly, and preventing air leakage when the exhaust gas is extracted.

[0009] A further feature of this invention is that a plurality of bearings are provided outside the first rotating shaft, and the first rotating shaft is rotatably disposed within the bushing via the bearings.

[0010] By adopting the above technical solution, the addition of bearings can improve the smoothness of the first rotating shaft rotating within the bushing.

[0011] A further feature of this invention is that: an annular seal is fixedly provided at one end of the bushing near the first connecting arm, and a locking nut is threadedly connected at one end of the first rotating shaft near the coupling; the annular seal and the locking nut are engaged with the bearing at the corresponding position to prevent disengagement.

[0012] By adopting the above technical solution, the annular seal and the locking nut work together to improve the dustproof and waterproof performance of the bushing, while effectively preventing the bearing from detaching from the upper and lower ends of the bushing.

[0013] A further feature of this invention is that the first mounting bracket has a mounting cavity corresponding to the coupling, and the coupling is housed within the mounting cavity.

[0014] By adopting the above technical solution, the first mounting bracket can provide external protection for the coupling, preventing damage caused by accidental external impacts.

[0015] A further feature of this invention is that the first rotating shaft is arranged parallel to the height direction of the base body, the length extension direction of the first connecting arm is perpendicular to the axial direction of the first rotating shaft, the second cover assembly includes a second cover plate and a second connecting arm, the first cover plate and the second cover plate are fastened together to form an air extraction channel, and the air extraction direction of the air extraction channel is parallel to the axial direction of the first rotating shaft.

[0016] By adopting the above technical solution, the first connecting arm can drive the first cover plate to swing in the horizontal direction, so that the first cover plate can be flipped horizontally relative to the second cover plate to the open or assembled state.

[0017] A further feature of this invention is that the splicing surfaces of the first cover plate and the second cover plate are provided with a guide structure, and the first cover plate and the second cover plate are spliced ​​together by the guide structure.

[0018] By adopting the above technical solution and adding a guide structure, the first cover plate can be more accurately positioned when it rotates relative to the second cover plate to the splicing state, thus preventing leakage when the exhaust gas is extracted.

[0019] A further feature of this invention is that the guide structure includes a V-shaped insertion part and a V-shaped slot, the V-shaped insertion part protrudes from the splicing surface of the second cover plate, and the V-shaped slot is formed on the splicing surface of the first cover plate corresponding to the V-shaped insertion part, and the V-shaped insertion part and the V-shaped slot are guided and spliced ​​together.

[0020] By adopting the above technical solution, when the first cover plate flips relative to the second cover plate from the open state to the closed state, the inclined guiding effect between the V-shaped plug and the V-shaped slot can make the first cover plate and the second cover plate fit together more properly.

[0021] A further feature of this invention is that an adjustment structure is provided between the first cover plate and the first connecting arm, the adjustment structure being used to adjust the installation position of the first cover plate on the first connecting arm.

[0022] A further feature of this invention is that the adjusting structure includes a waist-shaped hole and a bolt, a mounting plate is fixedly provided at the end of the first connecting arm away from the first rotating shaft, the waist-shaped hole is opened on the mounting plate, the first cover plate has a threaded hole corresponding to the waist-shaped hole, and the bolt passes through the waist-shaped hole and is threadedly connected to the threaded hole.

[0023] By adopting the above technical solution, by loosening the bolts and adjusting the relative position of the bolts in the waist-shaped hole, the installation position of the first cover plate at the end of the first connecting arm can be adjusted, thereby improving the splicing accuracy of the first cover plate and the second cover plate.

[0024] In summary, this utility model has the following beneficial effects:

[0025] The invention employs a motor vertically fixed on the base body. The motor's output end is connected to the power input end of a first rotating shaft via a coupling. The power output end of the first rotating shaft is fixedly connected to a first connecting arm, and the other end of the first connecting arm is fixedly connected to a first cover plate. The motor drives the first rotating shaft to rotate via the coupling, and the first rotating shaft drives the first cover plate to rotate relative to the second cover assembly in an opening or closing direction via the first connecting arm. This invention utilizes a motor to achieve electric opening and closing of the first cover assembly, saving labor costs and avoiding burns caused by manual opening. In addition, when the first cover assembly is opened to a predetermined angle relative to the second cover assembly, the motor can stably suspend the first cover assembly in the corresponding position, preventing the first cover assembly from accidentally closing due to its own weight due to levelness issues. This improves the safety of cathode extraction, and has the effects of achieving electric opening or closing of the suction hood, reducing labor costs, and improving safety. Attached Figure Description

[0026] Figure 1 This is an overall structural diagram of the present invention, in which the first cover plate and the second cover plate are assembled together.

[0027] Figure 2 This is a utility model Figure 1 Another perspective.

[0028] Figure 3 This is an overall structural diagram of the present invention, showing the first cover plate and the second cover plate opening relative to each other.

[0029] Figure 4 This is a utility model Figure 1 A longitudinal sectional view.

[0030] Figure 5 This is a utility model Figure 4 A magnified view of a portion of region A in the middle.

[0031] Figure 6 This is a utility model Figure 4 A magnified view of a portion of region B in the middle.

[0032] In the diagram: 1. Base body; 11. First mounting bracket; 110. Mounting cavity; 111. Bushing; 112. Bearing; 113. Annular seal; 114. Locking nut; 115. Motor; 12. Second mounting bracket; 121. Second rotating shaft; 1211. Friction plate; 2. First cover assembly; 21. First cover plate; 211. V-slot; 212. Threaded hole; 22. First connecting arm; 221. Mounting plate; 2211. Waist-shaped hole; 223. Bolt; 23. First rotating shaft; 231. Power input end; 232. Power output end; 3. Second cover assembly; 31. Second cover plate; 311. V-shaped insertion part; 32. Second connecting arm; 4. Air extraction channel; 5. Coupling. Detailed Implementation

[0033] The present invention will be further described below with reference to the accompanying drawings.

[0034] An electrically operated suction hood for a rare earth electrolysis furnace, such as Figures 1-5 As shown, the system includes a base body 1, a first cover assembly 2 and a second cover assembly 3 that can be opened and closed relative to each other. The first cover assembly 2 includes a first cover plate 21 and a first connecting arm 22. The base body 1 is fixedly provided with a first mounting bracket 11, and a first rotating shaft 23 is rotatably provided on the first mounting bracket 11. The first rotating shaft 23 includes a power input end 231 and a power output end 232. The end of the first connecting arm 22 away from the first cover plate 21 is fixedly connected to the power output end 232. A motor 115 is fixedly connected to the first mounting bracket 11, and the output shaft of the motor 115 is connected to the power output end 232 through a coupling 5. The base body 1 is also fixedly provided with a second mounting bracket 12. The first mounting bracket 11 and the second mounting bracket 12 are arranged opposite to each other on the base body 1. On both sides of body 1, a second rotating shaft 121 is fixedly connected to the second mounting bracket 12. The end of the second connecting arm 32 away from the second cover plate 31 is rotatably connected to the second rotating shaft 121. A friction plate 1211 is provided on the outside of the second rotating shaft 121 to prevent rotation. When the second connecting arm 32 rotates relative to the second rotating shaft 121, the second connecting arm 32 and the friction plate 1211 engage in damping cooperation, so that when the second connecting arm 32 rotates to a predetermined angle, it can be suspended and positioned by the friction plate 1211. The first mounting bracket 11 has a mounting cavity 110 corresponding to the coupling 5. The coupling 5 is built into the mounting cavity 110. The first mounting bracket 11 can provide external protection for the coupling 5 to prevent damage caused by accidental external impact.

[0035] like Figure 1 and Figures 3-5As shown, the first mounting bracket 11 has a bushing 111 fixed at the end away from the motor 115. The first rotating shaft 23 is rotatably mounted inside the bushing 111. The addition of the bushing 111 can improve the concentricity of the rotation center of the first rotating shaft 23, thereby making the horizontal rotation of the first cover assembly 2 relative to the second cover assembly 3 more consistent, reducing the error when the first cover assembly 2 rotates to the closed position relative to the second cover assembly 3, and preventing air leakage when the exhaust gas is extracted. Several bearings 112 are provided on the outside of the first rotating shaft 23, and the first rotating shaft 23 is rotatably mounted on the bushing 111 through the bearings 112. The addition of bearing 112 inside can improve the smoothness of the rotation of the first rotating shaft 23 inside the bushing 111; an annular seal 113 is fixedly provided at one end of the bushing 111 near the first connecting arm 22, and a locking nut 114 is threadedly connected at one end of the first rotating shaft 23 near the coupling 5. The annular seal 113, the locking nut 114 and the bearing 112 at the corresponding position are anti-disengagement engaged. The engagement of the annular seal 113 and the locking nut 114 can improve the dustproof and waterproof performance inside the bushing 111, and at the same time effectively prevent the bearing 112 from disengaging from the upper and lower ends of the bushing 111.

[0036] like Figures 1-6As shown, the first rotating shaft 23 is arranged parallel to the height direction of the base body 1. The length extension direction of the first connecting arm 22 is perpendicular to the axial direction of the first rotating shaft 23. The second cover assembly 3 includes a second cover plate 31 and a second connecting arm 32. The first cover plate 21 and the second cover plate 31 are interlocked to form an air extraction channel 4. The air extraction direction of the air extraction channel 4 is parallel to the axial direction of the first rotating shaft 23, so that the first connecting arm 22 can drive the first cover plate 21 to swing horizontally, causing the first cover plate 21 to flip horizontally relative to the second cover plate 31. In the open or closed state; the splicing surfaces of the first cover plate 21 and the second cover plate 31 are provided with a guide structure. The first cover plate 21 and the second cover plate 31 are guided to splice through the guide structure. The addition of the guide structure makes the first cover plate 21 rotate more accurately to the splicing state relative to the second cover plate 31, avoiding leakage during exhaust gas extraction. The guide structure includes a V-shaped insertion part 311 and a V-shaped slot 211. The V-shaped insertion part 311 protrudes from the splicing surface of the second cover plate 31, and the V-shaped slot 211 is opened on the splicing surface of the first cover plate 21 corresponding to the V-shaped insertion part 311. On the interface, the V-shaped insertion part 311 and the V-shaped slot 211 guide and splice each other. When the first cover plate 21 is flipped relative to the second cover plate 31 from the open state to the closed state, the inclined guide effect between the V-shaped insertion part 311 and the V-shaped slot 211 can make the first cover plate 21 and the second cover plate 31 fit together more properly. An adjustment structure is provided between the first cover plate 21 and the first connecting arm 22. The adjustment structure is used to adjust the installation position of the first cover plate 21 on the first connecting arm 22. The adjustment structure includes a slotted hole 2211 and a bolt 223. A mounting plate 221 is fixed at the end of the first connecting arm 22 away from the first rotating shaft 23. A waist-shaped hole 2211 is opened on the mounting plate 221. A threaded hole 212 is opened on the first cover plate 21 corresponding to the waist-shaped hole 2211. A bolt 223 passes through the waist-shaped hole 2211 and is threadedly connected to the threaded hole 212. By loosening the bolt 223, the relative position of the bolt 223 in the waist-shaped hole 2211 is adjusted, thereby adjusting the installation position of the first cover plate 21 at the end of the first connecting arm 22, thereby improving the splicing accuracy of the first cover plate 21 and the second cover plate 31.

[0037] The basic working principle of this utility model is as follows: A motor 115 is vertically fixed on the base body 1. The output end of the motor 115 is connected to the power input end 231 of the first rotating shaft 23 via a coupling 5. The power output end 232 of the first rotating shaft 23 is fixedly connected to the first connecting arm 22. The other end of the first connecting arm 22 is fixedly connected to the first cover plate 21. The motor 115 drives the first rotating shaft 23 to rotate via the coupling 5. The first rotating shaft 23 drives the first cover plate 21 to rotate relative to the second cover assembly 3 in the opening or closing direction via the first connecting arm 22. This utility model utilizes electricity... The motor 115 enables the electric opening and closing of the first cover assembly 2, saving labor costs and avoiding burns caused by manual opening. In addition, when the first cover assembly 2 is opened to a predetermined angle relative to the second cover assembly 3, the motor 115 can stably suspend the first cover assembly 2 in the corresponding position, preventing the first cover assembly 2 from accidentally closing due to its own weight due to levelness. This improves the safety of cathode extraction of this utility model and has the effects of realizing the electric opening or closing of the suction hood, reducing labor costs and improving safety of use.

[0038] 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 motor-driven openable suction hood for a rare earth electrolysis furnace, comprising a base body (1), a first cover assembly (2) and a second cover assembly (3) that can be opened and closed relative to each other, the first cover assembly (2) comprising a first cover plate (21) and a first connecting arm (22), characterized in that: The base body (1) is fixedly provided with a first mounting bracket (11), and a first rotating shaft (23) is rotatably provided on the first mounting bracket (11). The first rotating shaft (23) includes a power input end (231) and a power output end (232). The end of the first connecting arm (22) away from the first cover plate (21) is fixedly connected to the power output end (232). A motor (115) is fixedly connected on the first mounting bracket (11), and the output shaft of the motor (115) is connected to the power output end (232) through a coupling (5).

2. A motor-operated hood for a rare earth electrolysis cell according to claim 1, characterized in that: The first mounting bracket (11) has a bushing (111) fixed at one end away from the motor (115), and the first rotating shaft (23) is rotatably disposed in the bushing (111).

3. A motor-operated hood for a rare earth electrolysis cell according to claim 2, characterized in that: The first rotating shaft (23) is provided with a plurality of bearings (112), and the first rotating shaft (23) is rotatably disposed in the bushing (111) through the bearings (112).

4. A motor-operated hood for a rare earth electrolysis cell according to claim 3, characterized in that: The bushing (111) is fixed with an annular seal (113) at one end near the first connecting arm (22), and the first rotating shaft (23) is threaded with a lock nut (114) at one end near the coupling (5). The annular seal (113), the lock nut (114) and the bearing (112) at the corresponding position are anti-disengagement engaged.

5. The electrically operated suction hood for a rare earth electrolysis furnace according to claim 1, characterized in that: The first mounting bracket (11) has a mounting cavity (110) corresponding to the coupling (5), and the coupling (5) is built into the mounting cavity (110).

6. A motor-operated hood for a rare earth electrolysis cell according to claim 1, characterized in that: The first rotating shaft (23) is arranged parallel to the height direction of the base body (1), and the length extension direction of the first connecting arm (22) is perpendicular to the axis direction of the first rotating shaft (23). The second cover assembly (3) includes a second cover plate (31) and a second connecting arm (32). The first cover plate (21) and the second cover plate (31) are fastened together to form an air extraction channel (4). The air extraction direction of the air extraction channel (4) is parallel to the axis direction of the first rotating shaft (23).

7. A motor-operated hood for a rare earth electrolytic cell according to claim 6, wherein: The splicing surfaces of the first cover plate (21) and the second cover plate (31) are provided with a guide structure, and the first cover plate (21) and the second cover plate (31) are spliced ​​together by the guide structure.

8. A motor-operated hood for a rare earth electrolysis cell according to claim 7, characterized in that: The guide structure includes a V-shaped plug (311) and a V-shaped slot (211). The V-shaped plug (311) protrudes from the splicing surface of the second cover plate (31), and the V-shaped slot (211) is opened on the splicing surface of the first cover plate (21) corresponding to the V-shaped plug (311). The V-shaped plug (311) and the V-shaped slot (211) are connected in a guide manner.

9. The electrically opened suction hood for a rare earth electrolytic cell according to claim 1, characterized in that: An adjustment structure is provided between the first cover plate (21) and the first connecting arm (22), the adjustment structure being used to adjust the installation position of the first cover plate (21) on the first connecting arm (22).

10. The electrically opened suction hood for a rare earth electrolytic cell according to claim 9, characterized in that: The adjustment structure includes a waist-shaped hole (2211) and a bolt (223). The end of the first connecting arm (22) away from the first rotating shaft (23) is fixed with a mounting plate (221). The waist-shaped hole (2211) is opened on the mounting plate (221). The first cover plate (21) is provided with a threaded hole (212) corresponding to the waist-shaped hole (2211). The bolt (223) passes through the waist-shaped hole (2211) and is threadedly connected to the threaded hole (212).

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