Material guiding mechanism for ammonium molybdate production

Abstract

The invention relates to the technical field of ammonium molybdate production equipment, and particularly discloses a material guide mechanism for ammonium molybdate production, the material guide mechanism comprises a material guide pipe, one end of the material guide pipe is fixedly connected with a cover plate I, the cover plate I is rotatably connected with a rotating part, and the middle part of the rotating part is rotatably connected with a connecting rod; the sliding ring is connected to the inner wall of the material guiding pipe in a sliding mode, the sliding ring is rotationally connected with a connecting sleeve, a sliding sleeve is connected into the connecting sleeve in a sliding mode, and the connecting rod is fixedly connected with the sliding sleeve; the first spiral plate is fixedly connected between the rotating piece and the connecting sleeve, the connecting rod is fixedly connected with a second spiral plate, the other end of the material guiding pipe is fixedly connected with a second cover plate, a first spring is fixedly connected between the second cover plate and the sliding ring, and a second spring is fixedly connected between the sliding sleeve and the second cover plate. A double-helix structure is adopted, the elasticity difference between the first spring and the second spring is utilized, automatic axial expansion loosening is achieved when materials are slightly blocked, shutdown intervention is not needed, and conveying continuity and efficiency are improved.

Description

Technical Field

[0001] This invention relates to the field of ammonium molybdate production equipment technology, and more specifically, to a material feeding mechanism for ammonium molybdate production. Background Technology

[0002] In the production process of ammonium molybdate, efficient material conveying is a crucial step in ensuring continuous and stable production. Currently, most of the material guiding mechanisms used in the industry are single-screw conveying structures, which propel the material along the axial direction of the tube through rotating helical blades. This structure is widely used due to its simplicity and reliability. However, existing single-screw conveying structures still have the following problems in use: However, ammonium molybdate is highly susceptible to moisture absorption and caking during storage and transportation, leading to frequent blockages in the single-spiral structure during operation. Once blocked, the rotational resistance of the spiral plate increases sharply, the conveying efficiency drops drastically, and the mechanism cannot clear the blockage on its own, requiring manual cleaning after shutdown, which is extremely inconvenient to use.

[0003] Furthermore, when material blockage worsens and severe jamming occurs, the screw conveyor mechanism will be completely locked. At this point, the drive motor enters a stalled state due to excessive load, and the current surges dramatically. If the power is not cut off in time, the motor is prone to overheating and burning out, resulting in high maintenance costs and serious safety hazards for continuous production.

[0004] In view of this, we propose a feeding mechanism for the production of ammonium molybdate. Summary of the Invention

[0005] Technical problems to be solved To address the problems existing in the prior art, the present invention provides a material guiding mechanism for ammonium molybdate production, thereby solving the technical problem mentioned in the background art where ammonium molybdate material clumps together during conveying, causing blockage of the material within the screw conveyor structure.

[0006] Technical solution To achieve the above objectives, the present invention provides the following technical solution: a material guiding mechanism for the production of ammonium molybdate, comprising: a material guiding pipe, one end of which is fixedly connected to a cover plate, the cover plate being rotatably connected to a rotating component, and the middle of the rotating component being rotatably connected to a connecting rod; A sliding ring is slidably connected to the inner wall of the feed tube. The sliding ring is rotatably connected to a connecting sleeve, and a sliding sleeve is slidably connected inside the connecting sleeve. The connecting rod is fixedly connected to the sliding sleeve. Spiral plate one is fixed between the rotating part and the connecting sleeve; spiral plate two is fixed to the connecting rod; cover plate two is fixed to the other end of the guide tube; spring one is fixed between cover plate two and the sliding ring; spring two is fixed between the sliding sleeve and cover plate two. A fixing block is fixed to one side of the sliding sleeve, and a limiting groove is formed on the inner wall of the connecting sleeve, with the fixing block located in the limiting groove; A drive and protection mechanism is provided on one side of the guide tube, and the drive and protection mechanism is used to drive the connecting rod to rotate.

[0007] Furthermore, the length of the limiting groove is greater than the length of the fixing block, and the sliding sleeve is provided with an inclined slope for guiding the fixing block.

[0008] Furthermore, the pitch of the first spiral plate is the same as that of the second spiral plate, there is a gap between the first spiral plate and the second spiral plate, and the spring force of the first spring is less than that of the second spring.

[0009] Furthermore, the second cover plate is slidably connected to two limiting rods, which are fixed to the sliding ring. The second cover plate is provided with two blind holes, and a third spring is fixedly connected inside the blind holes of the second cover plate. A limiting post is slidably connected inside the blind holes of the second cover plate, and the limiting post is fixedly connected to the third spring. The connecting sleeve is provided with two limiting holes.

[0010] Furthermore, the drive protection mechanism includes: A motor is fixedly connected to one side of the feed tube. The output shaft of the motor is fixedly connected to a spline column one. The spline column one is splinedly connected to a limit member one. The end of the spline column is rotatably connected to a limit member two. Spline post two, splined to the connecting rod, spline post fixed to the limiting member two, limiting member one limiting the limiting member two.

[0011] Furthermore, the second limiting member has a frustum-shaped surface on the side near the first limiting member, and the first limiting member is fixed with circumferentially spaced elastic steel sheets, the ends of which are provided with compression limiting portions.

[0012] Furthermore, the extrusion limiting part of the elastic steel sheet limits the second limiting member. The extrusion limiting part is provided with an inclined surface. The connecting rod is fixedly connected to an extrusion sleeve. The extrusion sleeve is configured as a frustum shape. An elastic member is fixedly connected between the first limiting member and the first spline column.

[0013] Furthermore, the feed tube is fixedly connected to a fixed seat, the fixed seat is slidably connected to a connector, one end of the connector is rotatably connected to the connecting rod, and the other end of the connector is sleeved on the outside of the limiting member one, the connector limiting the limiting member one.

[0014] Furthermore, it also includes a feeding mechanism, which is disposed in the guide tube, and the feeding mechanism includes: A feed pipe is fixedly connected to and communicates with the upper side of the guide pipe. The feed pipe is fixedly connected with circumferentially spaced connecting blocks, and flange pipes are fixedly connected between the circumferentially spaced connecting blocks. A fixed plate is fixedly connected to the feed pipe, and a rotating plate is rotatably connected between the flange pipe and the feed pipe. Both the rotating plate and the fixed plate are provided with through holes distributed at intervals.

[0015] Furthermore, a toothed ring is fixedly connected to the outer side of the rotating plate, and a rack is slidably connected to the flange pipe through a guide. The rack meshes with the toothed ring, and a folded rod is fixedly connected between the limiting rod and the rack.

[0016] Beneficial effects Compared with the prior art, the present invention provides a feeding mechanism for the production of ammonium molybdate, which has the following advantages: 1. This invention employs a double-helix structure, utilizing the difference in elasticity between spring one and spring two to achieve a graded response when materials become blocked. In cases of mild blockage, spiral plate one moves axially to expand and loosen the blockage; in cases of severe blockage, the fixed block disengages from the limiting groove, and spiral plate two rotates relative to the stationary spiral plate one to shear and clear the blockage. This eliminates the need for machine shutdown and manual intervention, improving the continuity and efficiency of the conveying process.

[0017] 2. The drive protection mechanism of the present invention can automatically cut off the power transmission when the material is completely jammed to prevent the motor from being overloaded and burned out; at the same time, the feeding mechanism is linked with the material guiding state, and automatically closes the feeding channel when there is a blockage to curb the worsening of the blockage. The dual protection mechanism effectively ensures the safe operation of the equipment and extends its service life.

[0018] 3. After the blockage is cleared, under the spring's restoring force and the guiding action of the inclined slope, each component automatically returns to its initial working state, and power transmission is automatically resumed. This design is suitable for the continuous production requirements of ammonium molybdate. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a material guiding mechanism for the production of ammonium molybdate according to the present invention; Figure 2 This is a cross-sectional view of the feed tube in this invention; Figure 3 This is a schematic diagram of the structure of spiral plate one and spiral plate two in this invention; Figure 4 This is a cross-sectional structural diagram of the connecting sleeve and sliding sleeve and other parts in this invention; Figure 5 This is an exploded structural diagram of the connecting sleeve and sliding sleeve in this invention; Figure 6 This is a cross-sectional view of the spiral plate II in this invention; Figure 7 This is a schematic diagram of the structure of the fixing base and the connecting member in this invention; Figure 8 This is a cross-sectional view of the limiting member one and the limiting member two in this invention; Figure 9 This is a schematic diagram of the structure of the limiting member 2 and the elastic steel sheet in this invention; Figure 10 This is a cross-sectional view of the feed pipe and flange pipe in this invention.

[0020] In the diagram: 1. Feed pipe; 2. Cover plate one; 3. Rotating component; 4. Connecting rod; 5. Sliding ring; 6. Connecting sleeve; 7. Sliding sleeve; 8. Spiral plate one; 9. Spiral plate two; 10. Cover plate two; 11. Spring one; 12. Spring two; 13. Fixing block; 14. Limiting groove; 15. Inclined slope; 16. Limiting rod; 17. Spring three; 18. Limiting post; 19. Limiting hole; 20. Motor; 21. Splined column one; 22. Limiting component one; 23. Limiting component two; 24. Splined column two; 25. Elastic steel sheet; 26. Extrusion limiting part; 27. Extrusion sleeve; 28. Elastic component; 29. ​​Fixing seat; 30. Connecting component; 31. Feed pipe; 32. Connecting block; 33. Flange pipe; 34. Fixing plate; 35. Rotating plate; 36. Gear ring; 37. Gear rack; 38. Folded rod. Detailed Implementation

[0021] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0022] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0023] In this invention, unless otherwise stated, the directional terms such as "up" and "down" generally refer to the directions shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" generally refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this invention.

[0024] This invention provides a feeding mechanism for ammonium molybdate production, such as... Figures 1-5 As shown, it includes: a guide pipe 1, a cover plate 1, a rotating part 3, a connecting rod 4, a sliding ring 5, a connecting sleeve 6, a sliding sleeve 7, a spiral plate 1 8, a spiral plate 2 9, a cover plate 2 10, a spring 1 11, a spring 2 12, a fixing block 13, a limiting groove 14, an inclined slope 15, a limiting rod 16, a spring 3 17, a limiting post 18, a limiting hole 19, and a drive protection mechanism; A feed tube 1 has a cover plate 2 fixedly connected to one end. A rotating component 3 is rotatably connected to the cover plate 2, and a connecting rod 4 is rotatably connected to the middle of the rotating component 3. A sliding ring 5 is slidably connected to the inner wall of the feed tube 1, and a connecting sleeve 6 is rotatably connected to the sliding ring 5. A sliding sleeve 7 is slidably connected inside the connecting sleeve 6, and the connecting rod 4 is fixedly connected to the sliding sleeve 7. A spiral plate 8 is fixedly connected between the rotating component 3 and the connecting sleeve 6, and a spiral plate 9 is fixedly connected to the connecting rod 4. A cover plate 10 is fixedly connected to the other end of the feed tube 1, and a spring 11 is fixedly connected between the cover plate 10 and the sliding ring 5. A spring 12 is fixedly connected between the sliding sleeve 7 and the cover plate 10. A fixing block 13 is fixedly connected to one side of the sliding sleeve 7. A limiting groove 14 is formed on the inner wall of the connecting sleeve 6, and the fixing block 13 is located within the limiting groove 14. Drive protection... The mechanism is located on one side of the guide tube 1, and the drive protection mechanism is used to drive the connecting rod 4 to rotate; the length of the limiting groove 14 is greater than the length of the fixed block 13, and the sliding sleeve 7 is provided with an inclined slope 15 for guiding the fixed block 13; the pitch of the spiral plate 1 8 and the pitch of the spiral plate 2 9 are the same, there is a gap between the spiral plate 1 8 and the spiral plate 2 9, and the spring force of the spring 11 is less than the spring force of the spring 2 12; the cover plate 2 10 is slidably connected with two limiting rods 16, the limiting rods 16 are fixed to the sliding ring 5, the cover plate 2 10 is provided with two blind holes, the blind holes of the cover plate 2 10 are fixedly connected with spring 3 17, the blind holes of the cover plate 2 10 are slidably connected with limiting post 18, the limiting post 18 is fixedly connected to spring 3 17, and the connecting sleeve 6 is provided with two limiting holes 19.

[0025] When the connecting rod 4 rotates, the connecting rod 4 rotates along the sliding sleeve 7, and the connecting rod 4 drives the spiral plate 9 to rotate. In the initial state, the fixed block 13 is located in the limiting groove 14. The sliding sleeve 7 drives the connecting sleeve 6 to rotate circumferentially along the sliding ring 5 through the fixed block 13. At this time, the rotation speed of the sliding sleeve 7 and the connecting sleeve 6 is the same. The connecting sleeve 6 drives the spiral plate 8 to rotate, and the connecting piece 30 rotates along the cover plate 2. Through the synchronous rotation of the spiral plate 8 and the spiral plate 9, the material is pushed forward along the guide pipe 1. During the material conveying process, the spring 11 and the spring 212 will not be compressed.

[0026] During the conveying process, if the material becomes blocked in the guide pipe 1, the spring force of spring 11 is less than that of spring 12. As the spiral plate 8 rotates, it experiences a reverse force, causing the spiral plate 9 to move relative to the guide pipe 1. The connecting sleeve 6 drives the sliding ring 5 to slide along the inner wall of the guide pipe 1, compressing spring 11. The limiting rod 16 slides along the cover plate 10. Simultaneously, the spiral plate 8 drives the rotating component 3 to slide along the cover plate 2. The rotating component 3 and the connecting rod 4 experience relative displacement. During this process, the relative displacement between the spiral plate 9 and the spiral plate 8, along with the movement of the connecting sleeve 6, increases the internal space of the guide pipe 1. This relative displacement of the spiral plate 9 clears the blockage, loosening the material. Once the material is loosened, the connecting sleeve 6 and the spiral plate 8 return to their original positions under the force of spring 11. During the movement of the connecting sleeve 6, the fixing block 13 slides within the limiting groove 14.

[0027] If the blockage continues and worsens, the reaction force on the spiral plate 9 gradually increases until it exceeds the elastic force of the spring 12. The spiral plate 9 then drives the connecting rod 4 and the sliding sleeve 7 to slide along the connecting sleeve 6. The spring 12 is compressed. During this process, the fixing block 13 moves out of the limiting groove 14 and does not move the connecting sleeve 6, causing the connecting sleeve 6 to contact the cover plate 2. The limiting post 18 is inserted into the limiting hole 19 of the connecting sleeve 6, preventing the connecting sleeve 6 and the spiral plate 8 from rotating further. The connecting rod 4 drives the spiral plate 9 to rotate, causing relative rotation between the spiral plate 9 and the spiral plate 8, thus... The material entering and exiting the blockage is cleared. If the blockage is cleared, the sliding sleeve 7, connecting rod 4, and connecting sleeve 6 will be reset under the elastic force of spring 2 12 and spring 11. When the sliding sleeve 7 is reset, the fixing block 13 contacts the inclined slope 15 and guides the fixing block 13 to move into the limiting groove 14. Then the sliding sleeve 7 drives the connecting sleeve 6 to continue rotating together through the fixing block 13 until the end of the limiting rod 16 contacts the cover plate 2 10 and the sliding ring 5 stops moving. In this embodiment, the specific elastic force of spring 2 12 and spring 11 is adjusted according to the material being conveyed.

[0028] like Figures 6-9 As shown, the drive protection mechanism includes: a motor 20, a spline column 21, a first limiter 22, a second limiter 23, a second spline column 24, an elastic steel sheet 25, a compression limiting part 26, a compression sleeve 27, an elastic element 28, a fixed base 29, and a connecting part 30. Motor 20 is fixed to one side of guide pipe 1. Spline column 21 is fixed to the output shaft of motor 20. Spline column 21 is splinedly connected to limit member 22. Limit member 23 is rotatably connected to the end of spline column 24. Spline column 24 is splinedly connected to connecting rod 4. Spline column 24 is fixedly connected to limit member 23. Limit member 22 limits limit member 23. A frustum is provided on the side of limit member 23 near limit member 22. Circumferentially spaced elastic steel sheets 25 are fixed to limit member 22. Extrusion limit is provided at the end of elastic steel sheet 25. Part 26; The extrusion limiting part 26 of the elastic steel sheet 25 limits the limiting part 23. The extrusion limiting part 26 is provided with an inclined surface. The connecting rod 4 is fixedly connected to the extrusion sleeve 27. The extrusion sleeve 27 is set in the shape of a frustum. An elastic element 28 is fixedly connected between the limiting part 22 and the spline column 21. The guide tube 1 is fixedly connected to the fixed seat 29. The fixed seat 29 is slidably connected to the connecting part 30. One end of the connecting part 30 is rotatably connected to the connecting rod 4. The other end of the connecting part 30 is sleeved on the outside of the limiting part 22. The connecting part 30 limits the limiting part 22.

[0029] When conveying materials, the motor 20 is started. The output shaft of the motor 20 drives the second spline column 24 to rotate circumferentially. The second spline column 24 drives the first limiting member 22 to rotate circumferentially. In the initial state, the extrusion limiting part 26 of the elastic steel sheet 25 is in a limiting state against the second limiting member 23, and the second limiting member 23 limits the first limiting member 22. The elastic member 28 is in a stored state. The first limiting member 22 drives the second spline column 24 to rotate synchronously through the second limiting member 23. The second spline column 24 drives the connecting rod 4 to rotate, thereby realizing the rotation of the first spiral plate 8 and the second spiral plate 9 to convey materials.

[0030] When the connecting rod 4 slides along the connecting sleeve 6, the connecting rod 4 slides backward along the cover plate 10, and the connecting rod 4 slides relative to the spline column 24. The connecting rod 4 drives the extrusion sleeve 27 to move and gradually approach the limiting member 23. If the material in the guide tube 1 is completely jammed, the spiral plate 9 drives the connecting rod 4 to move backward, and the connecting rod 4 drives the connecting member 30 to slide along the fixed seat 29. The connecting member 30 no longer limits the limiting member 22, and the extrusion sleeve 27 gradually approaches the limiting member 23. The extrusion sleeve 27 extrudes the extrusion limiting part 26 of the elastic steel sheet 25. The extrusion limiting part 26 moves outward along the limiting member 23. When the limiting member 23 loses its limiting position, the limiting member 22 slides along the spline column 21 under the elastic force of the elastic member 28. The limiting member 22 loses contact with the limiting member 23, so that the connecting rod 4 no longer rotates, thereby preventing the material from getting stuck in the guide tube 1, which would cause the main shaft of the motor 20 to burn out.

[0031] After clearing the blockage in the feed pipe 1, the connecting rod 4 is reset under the elastic force of spring 12 and spring 11. The connecting rod 4 drives the limiting part 22 to slide along the spline column through the connecting part 30 and is again limited by the limiting part 23. The extrusion limiting part 26 slides along the truncated surface of the limiting part 23. Under the elastic force of the elastic steel sheet 25, the extrusion limiting part 26 is again limited by the limiting part 23, so that the limiting part 12 and the limiting part 23 are connected again. This allows the output shaft of the motor 20 to continue to drive the connecting rod 4 to rotate, so that the spiral plate 9 and the spiral plate 8 rotate circumferentially to convey the material.

[0032] like Figure 10 As shown, it also includes a feeding mechanism, which is located in the guide pipe 1. The feeding mechanism includes: a feeding pipe 31, a connecting block 32, a flange pipe 33, a fixing plate 34, a rotating plate 35, a toothed ring 36, a rack 37, and a folding rod 38. The feed pipe 31 is fixedly connected to the upper side of the guide pipe 1. The lower side of the guide pipe 1 is fixedly connected to the discharge pipe, which is an existing structure and will not be described in detail here. The feed pipe 31 is fixedly connected to the circumferentially spaced connecting blocks 32, and the circumferentially spaced connecting blocks 32 are fixedly connected to the flange pipe 33. The fixing plate 34 is fixedly connected to the feed pipe 31. The flange pipe 33 and the feed pipe 31 are rotatably connected to the rotating plate 35. Both the rotating plate 35 and the fixing plate 34 are provided with spaced through holes. The outer side of the rotating plate 35 is fixedly connected to the toothed ring 36. The flange pipe 33 is slidably connected to the rack 37 through the guide member. The rack 37 meshes with the toothed ring 36. The limit rod 16 and the rack 37 are fixedly connected to the folded rod 38.

[0033] The flange pipe 33 is connected to the bottom outlet of the material silo. The material enters the guide pipe 1 through the through holes of the rotating plate 35 and the fixed plate 34. Then, the material is pushed along the guide pipe 1 by the spiral plate 8 and the spiral plate 9 and discharged from the outlet pipe.

[0034] When material blockage occurs, the spiral plate drives the sliding ring 5 to move along the guide pipe 1. The limiting rod 16 slides along the cover plate 10. The limiting rod 16 drives the rack 37 to move through the folded rod 38. The rack 37 and the toothed ring 36 drive each other, causing the toothed ring 36 to drive the rotating plate 35 to rotate along the feed pipe 31 and the flange pipe 33. The rotating plate 35 and the fixed plate 34 rotate relative to each other. The through holes of the fixed plate 34 and the rotating plate 35 are misaligned, reducing the material feeding speed. When the connecting sleeve 6 contacts the cover plate 10, the through holes of the fixed plate 34 and the rotating plate 35 are completely closed, thereby preventing the material from continuing to flow into the guide pipe 1, which leads to a more serious blockage in the guide pipe 1.

[0035] Working principle of the invention: When motor 20 is started, its output shaft sequentially drives spline column 21 and limit member 22 to rotate. In the initial state, the elastic steel sheet 25 on limit member 22 and its end compression limiting part 26 limit limit member 23, while the connecting member 30 also limits limit member 22, and the elastic member 28 is in a stored state. Therefore, limit member 22 drives spline column 24 to rotate synchronously through limit member 23, and spline column 24 drives the connecting rod 4 connected to it to rotate.

[0036] When the connecting rod 4 rotates, the fixed block 13 on the sliding sleeve 7 is located within the limiting groove 14 of the connecting sleeve 6, causing the sliding sleeve 7 to rotate together with the connecting sleeve 6 via the fixed block 13. At this time, the connecting rod 4 drives the spiral plate 9 to rotate, and the connecting sleeve 6 drives the spiral plate 8 to rotate, with both rotating at the same speed. Under the joint pushing of the spiral plate 8 and the spiral plate 9, the material is conveyed forward along the inner wall of the guide pipe 1 and finally discharged from the discharge pipe. During this process, neither the spring 11 nor the spring 12 is compressed, and the device is in a stable working state.

[0037] When material blockage occurs in the feed pipe 1, the resistance experienced by spiral plate 8 and spiral plate 9 increases. Since the elastic force of spring 11 is less than that of spring 12, spiral plate 8 is first subjected to a reverse force.

[0038] The aforementioned reverse force overcomes the elastic force of spring 11, pushing the connecting sleeve 6 to drive the sliding ring 5 to slide along the inner wall of the guide tube 1 away from the cover plate 2, compressing spring 11. Simultaneously, the limiting rod 16, fixed to the sliding ring 5, slides along the cover plate 10. During this process, the spiral plate 8 and spiral plate 9 undergo relative axial displacement, increasing the internal space of the guide tube 1, loosening and initially clearing the material at the blockage point.

[0039] If the resistance disappears after the material is loosened, the connecting sleeve 6 and the spiral plate 8 will return to their initial positions under the restoring force of the spring 11, and the device will resume normal conveying. When the connecting sleeve 6 moves, the fixing block 13 always slides within the limiting groove 14 to ensure that the sliding sleeve 7 and the connecting sleeve 6 are circumferentially locked.

[0040] If the material blockage continues to worsen, the reaction force on the spiral plate 9 will continue to increase until it exceeds the elastic force of the spring 12. At this point, the spiral plate 9 will drive the connecting rod 4 and the sliding sleeve 7 to overcome the elastic force of the spring 12 and slide backward along the inside of the connecting sleeve 6, compressing the spring 12.

[0041] The backward movement of the sliding sleeve 7 causes the fixing block 13 to disengage from the limiting groove 14 of the connecting sleeve 6, and the connecting sleeve 6 loses its circumferential driving force. At the same time, the connecting sleeve 6 continues to move backward under the push of the spring 11 until it contacts the cover plate 2. At this time, the limiting post 18 on the cover plate 2 is inserted into the limiting hole 19 of the connecting sleeve 6 under the elastic force of the spring 3 17, locking the connecting sleeve 6 and the spiral plate 8 and stopping their rotation.

[0042] After that, the connecting rod 4 only drives the spiral plate 9 to continue rotating inside the stationary spiral plate 8, and the two generate relative rotation to shear and clear the material stuck at the blockage.

[0043] Once the blockage is cleared and the resistance disappears, the sliding sleeve 7 and connecting sleeve 6 will reset sequentially under the restoring force of springs 12 and 11. When the sliding sleeve 7 resets, its inclined surface 15 contacts the fixed block 13, guiding the fixed block 13 to slide back into the limiting groove 14. The sliding sleeve 7 then drives the connecting sleeve 6 to rotate together through the fixed block 13 until the end of the limiting rod 16 contacts the cover plate 10, the sliding ring 5 stops moving, and the device is fully restored to normal operation.

[0044] When severe blockage occurs in the material and the connecting rod 4 moves backward, the connecting rod 4 causes the extrusion sleeve 27, which is fixed to it, to gradually approach the limiting member 23. At the same time, the connecting rod 4 causes the connecting member 30 to slide along the fixed base 29, and the connecting member 30 no longer limits the limiting member 22.

[0045] When the material is completely jammed and the connecting rod 4 moves to its limit position, the extrusion sleeve 27 extrudes the extrusion limiting part 26 at the end of the elastic steel sheet 25, causing it to expand outward along the frustum surface of the limiting member 23, thereby releasing the lock on the limiting member 23. At this time, the elastic member 28, which is in a stored state, quickly releases its elastic force, pushing the limiting member 22 to slide along the spline column 21, so that the limiting member 22 and the limiting member 23 are completely disengaged.

[0046] At this point, the power transmission path of the output shaft of motor 20 is cut off, motor 20 runs idle, and connecting rod 4 stops rotating, effectively preventing the accident of motor 20 stalling and burning out due to the jamming of guide tube 1.

[0047] Once the blockage in the feed tube 1 is cleared, the connecting rod 4 resets under the elastic force of springs 11 and 12, and drives the limiting member 22 to re-engage with the limiting member 23 via the connecting member 30. The extrusion limiting part 26 slides along the frustum surface of the limiting member 23 and re-engages under the elastic force of the elastic steel sheet 25, locking the limiting member 23. At the same time, the elastic member 28 is compressed and stored again, and the power transmission is automatically restored.

[0048] When material blockage occurs, the sliding ring 5 moves the limiting rod 16 backward, and the limiting rod 16 moves the rack 37 via the folded rod 38. The rack 37 meshes with the gear ring 36, driving the gear ring 36 to rotate the rotating plate 35 relative to the fixed plate 34.

[0049] The through holes on the rotating plate 35 and the fixed plate 34 are thus misaligned, thereby reducing or cutting off the material discharge channel of the feed pipe 31. Specifically, when the sliding ring 5 starts to move, the through holes are partially misaligned, reducing the material discharge speed; when the connecting sleeve 6 contacts the cover plate 10 and the blockage is most severe, the through holes are completely closed, completely preventing the material from continuing to enter the guide pipe 1 and preventing the blockage from worsening.

[0050] In all the solutions mentioned above, for connections between two components, welding, bolt and nut connection, bolt or screw connection, or other known connection methods can be selected according to the actual situation. These will not be elaborated here. For all fixed connections mentioned above, welding is preferred. Although 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 can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A feeding mechanism for ammonium molybdate production, characterized in that, include: A guide tube (1) is fixedly connected to a cover plate (2) at one end of the guide tube (1), and a rotating part (3) is rotatably connected to the cover plate (2), and a connecting rod (4) is rotatably connected to the middle of the rotating part (3). A sliding ring (5) is slidably connected to the inner wall of the guide tube (1). The sliding ring (5) is rotatably connected to a connecting sleeve (6). A sliding sleeve (7) is slidably connected inside the connecting sleeve (6). The connecting rod (4) is fixedly connected to the sliding sleeve (7). Spiral plate one (8) is fixed between the rotating part (3) and the connecting sleeve (6), spiral plate two (9) is fixed to the connecting rod (4), cover plate two (10) is fixed to the other end of the guide tube (1), spring one (11) is fixed between cover plate two (10) and the sliding ring (5), and spring two (12) is fixed between the sliding sleeve (7) and cover plate two (10). A fixing block (13) is fixed to one side of the sliding sleeve (7), and a limiting groove (14) is provided on the inner wall of the connecting sleeve (6), and the fixing block (13) is located in the limiting groove (14). A drive protection mechanism is provided on one side of the guide tube (1), and the drive protection mechanism is used to drive the connecting rod (4) to rotate.

2. The feeding mechanism for ammonium molybdate production according to claim 1, characterized in that, The length of the limiting groove (14) is greater than the length of the fixing block (13), and the sliding sleeve (7) is provided with an inclined slope (15) for guiding the fixing block (13).

3. The feeding mechanism for ammonium molybdate production according to claim 1, characterized in that, The pitch of the first spiral plate (8) is the same as that of the second spiral plate (9). There is a gap between the first spiral plate (8) and the second spiral plate (9). The spring force of the first spring (11) is less than that of the second spring (12).

4. The feeding mechanism for ammonium molybdate production according to claim 3, characterized in that, The cover plate 2 (10) is slidably connected to two limiting rods (16), the limiting rods (16) are fixed to the sliding ring (5), the cover plate 2 (10) is provided with two blind holes, the cover plate 2 (10) is fixedly connected to the blind holes of the cover plate 2 (10), the limiting post (18) is slidably connected to the blind holes of the cover plate 2 (10), the limiting post (18) is fixedly connected to the spring 3 (17), and the connecting sleeve (6) is provided with two limiting holes (19).

5. The feeding mechanism for ammonium molybdate production according to claim 1, characterized in that, The drive protection mechanism includes: The motor (20) is fixed to one side of the guide tube (1). The output shaft of the motor (20) is fixed to a spline column (21). The spline column (21) is spline-connected to a limiting member (22). The end of the spline column is rotatably connected to a limiting member (23). Spline post 2 (24) is connected to the connecting rod (4) by a spline. The spline post is fixed to the limiting member 2 (23). The limiting member 1 (22) limits the limiting member 2 (23).

6. The feeding mechanism for ammonium molybdate production according to claim 5, characterized in that, The second limiting member (23) has a frustum surface on the side near the first limiting member (22). The first limiting member (22) is fixed with circumferentially spaced elastic steel sheets (25). The end of the elastic steel sheet (25) is provided with a compression limiting part (26).

7. The feeding mechanism for ammonium molybdate production according to claim 6, characterized in that, The extrusion limiting part (26) of the elastic steel sheet (25) limits the second limiting member (23). The extrusion limiting part (26) is provided with an inclined surface. The connecting rod (4) is fixedly connected with an extrusion sleeve (27). The extrusion sleeve (27) is set in the shape of a frustum. An elastic member (28) is fixedly connected between the first limiting member (22) and the first spline column (21).

8. The feeding mechanism for ammonium molybdate production according to claim 7, characterized in that, The guide tube (1) is fixedly connected to a fixed seat (29), and the fixed seat (29) is slidably connected to a connector (30). One end of the connector (30) is rotatably connected to the connecting rod (4), and the other end of the connector (30) is sleeved on the outside of the limiting member (22). The connector (30) limits the limiting member (22).

9. A feeding mechanism for ammonium molybdate production according to claim 4, characterized in that, It also includes a feeding mechanism, which is disposed in the guide pipe (1), and the feeding mechanism includes: The feed pipe (31) is fixedly connected to and connected to the upper side of the guide pipe (1). The feed pipe (31) is fixedly connected to the connecting blocks (32) that are spaced apart in a circumferential direction. The connecting blocks (32) that are spaced apart in a circumferential direction are fixedly connected to the flange pipe (33). A fixed plate (34) is fixedly connected to the feed pipe (31). A rotating plate (35) is rotatably connected between the flange pipe (33) and the feed pipe (31). Both the rotating plate (35) and the fixed plate (34) are provided with through holes distributed at intervals.

10. A feeding mechanism for ammonium molybdate production according to claim 9, characterized in that, A toothed ring (36) is fixedly connected to the outside of the rotating plate (35), and a rack (37) is slidably connected to the flange pipe (33) through a guide. The rack (37) meshes with the toothed ring (36), and a folded rod (38) is fixedly connected between the limiting rod (16) and the rack (37).

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