A hard metal material stirring device

Abstract

This utility model discloses a cemented carbide material stirring device, including a stirring frame, a connecting rod at the top of the stirring frame, a protective sleeve rotatably fitted on the outside of the connecting rod, a locking sleeve on the outside of the protective sleeve, the inner wall of the locking sleeve being movably connected to the outer wall of the protective sleeve by threads, a control sleeve rotatably fitted on the outside of the locking sleeve, a protective groove on the outside of the connecting rod, a locking frame fixedly fitted on one side of the control sleeve, a locking rod slidably fitted in the locking frame, a locking plate fixedly fitted at one end of the locking rod, a locking spring movably fitted on the outside of the locking rod, multiple movable grooves on the inside of the protective sleeve, a protective frame on the side wall of the movable groove, a protective block slidably fitted in the movable groove, a movable spring connected to one side of the protective block, a movable block at the other end of the movable spring, a movable sleeve on the outside of the protective sleeve, and a locking groove on the outside of the protective sleeve. This utility model realizes flexible adjustment of the overload trigger threshold and ensures the structural stability after the protection threshold is adjusted, ensuring the stable use of the equipment.

Description

Technical Field

[0001] This utility model relates to the field of cemented carbide material stirring technology, and more specifically, to a cemented carbide material stirring device. Background Technology

[0002] In the context of the rapid development of materials science and manufacturing processes, cemented carbide, as an important industrial material, has a decisive influence on the performance and quality of the final product during its preparation process. Due to its special composition and strict proportioning requirements, cemented carbide materials place extremely high technical demands on the stability and reliability of the equipment during the stirring process. However, from the perspective of equipment design and process control, existing cemented carbide material stirring devices still have key technical problems that urgently need to be solved.

[0003] Firstly, most existing cemented carbide material mixing equipment incorporates an overload protection device at the connection between the motor and the mixing frame as a safety mechanism to prevent motor overload or frame breakage. While this design provides some safety, its protection threshold is typically fixed and lacks an adjustment mechanism. Specifically, traditional overload protection systems employ simple mechanical or basic electrical protection devices, whose protection parameters are difficult to change once set. This structural design prevents the system from precisely adjusting the protection threshold based on different types, viscosities, and solid-liquid ratios of cemented carbide materials. When mixing cemented carbide materials, if the material ratio changes or local agglomeration occurs in the cemented carbide mixture, the fixed protection threshold may be too high, causing the motor to be in a near-overload state for a long time during the stirring process without effective protection. Conversely, if the protection threshold is set too low, the protection mechanism may be frequently triggered when the stirring load fluctuates, causing production interruption and seriously affecting production efficiency. This technical defect of not being able to flexibly adjust the protection threshold for different ratios and stirring conditions not only limits the adaptability and working efficiency of the equipment, but also significantly increases the maintenance cost and failure rate of the equipment, bringing a significant negative impact on the production quality control of cemented carbide materials.

[0004] Secondly, some improved cemented carbide material stirring devices have appeared on the market. These devices superficially achieve flexible adjustment of the protection threshold. However, these improved designs still reveal serious stability defects in actual production applications: their adjustment structure usually lacks a precise anti-loosening mechanism and multiple locking protection design. When the stirring device is running at high speed, the equipment will generate a variety of complex loads such as continuous vibration and impact. Under the long-term effect of these complex dynamic factors, the simply connected adjustment components are prone to mechanical loosening, displacement deflection, or control parameter drift. Especially in continuous production, the stability of the adjustment device gradually decreases, and the originally carefully adjusted protection threshold parameters inevitably show significant deviations or random fluctuations. More seriously, in the preparation process of precision cemented carbide materials, small changes in the protection threshold may cause unstable motor load control during the stirring process. This may lead to process interruption due to premature triggering of the protection mechanism, or equipment damage or material batch defects due to protection failure. This not only affects the continuity of production, but may also cause waste of high-value materials, reducing the overall efficiency of the production line and the reliability of the process. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In view of the problems existing in the prior art, the present invention provides a cemented carbide material stirring device to solve the technical problems mentioned in the background art.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a cemented carbide material stirring device, comprising a stirring frame, a connecting rod connected to the top of the stirring frame, a protective sleeve rotatably fitted around the connecting rod, a locking sleeve on the outer side of the protective sleeve, the inner wall of the locking sleeve being movably connected to the outer wall of the protective sleeve via threads, a control sleeve rotatably fitted around the locking sleeve, a protective groove formed on the outer side of the connecting rod, a locking frame fixedly fitted on one side of the control sleeve, a locking rod slidably fitted within the locking frame, a locking plate fixedly connected to one end of the locking rod, and a locking plate movably fitted around the outer side of the locking rod. The protective sleeve has a locking spring, with its two ends connected to a locking plate and a locking frame, respectively. Multiple movable slots are provided on the inner side of the protective sleeve, and a protective frame is slidably mounted on the side wall of each movable slot. One end of the protective frame is inserted into the protective slot, and a protective block is slidably mounted in the movable slot, abutting against the outer end of the protective frame. A movable spring is connected to one side of the protective block, and the movable block is connected to the other end of the movable spring. A movable sleeve is provided on the outer side of the protective sleeve, and the outer wall of the movable sleeve is movably connected to the inner wall of the control sleeve via threads. A locking slot is provided on the outer side of the protective sleeve, and one end of the locking rod is engaged in the locking slot.

[0009] The present invention is further configured such that a feed pipe is detachably provided at the top of the mixing tank, a feed cover is provided at the top of the feed pipe, and a discharge pipe is connected to the bottom of the mixing tank. This design makes the addition of cemented carbide materials and the discharge of finished products more convenient and efficient, and realizes continuous production.

[0010] The present invention is further configured such that a limiting frame is detachably provided above the can lid, a rotating rod is rotatably connected to the top of the limiting frame, a screw is detachably connected above the feed pipe, the inner side of the rotating rod is movably connected to the screw through a thread, and one side of the feed cover is slidably connected to the limiting frame. This combined structure realizes precise control of the feed cover. The operator only needs to rotate the rotating rod to drive the screw and the feed cover to move up and down precisely along the limiting frame.

[0011] The present invention is further provided with multiple anti-slip strips fixedly connected to the outer side of the locking sleeve and the control sleeve. This anti-slip design significantly improves the control accuracy and comfort of the operator when adjusting the protection threshold. Even in industrial environments where protective gloves are worn or hands are contaminated with oil, the locking sleeve and the control sleeve can be rotated easily and accurately, avoiding inaccurate adjustment or operation errors caused by slippage.

[0012] The present invention is further configured such that the protective sleeve has multiple moving grooves on its side wall, and a moving block is slidably disposed in the moving groove. The inner wall of the moving sleeve is fixedly connected by the moving block and the movable block. This guiding connection structure effectively prevents the moving sleeve from deflecting or rotating during the rotation control process, ensuring that the moving sleeve always moves smoothly along the axial direction of the protective sleeve. At the same time, the sliding design of the moving block in the moving groove accurately converts the rotational motion into axial movement, making the adjustment of the protection threshold more linear and predictable.

[0013] The present invention is further configured such that one end of the locking rod and the edge of the inner wall of the locking groove are both designed with rounded corners. This humanized design greatly reduces the frictional resistance and stress concentration when the locking rod is inserted into and pulled out of the locking groove, ensuring that the locking rod can smoothly achieve locking and unlocking operations.

[0014] The present invention is further configured such that one end of the protective frame and the inner wall of the protective groove are both designed with rounded corners. This rounded corner structure design ensures that the protective frame can be smoothly detached from the protective groove when the protective mechanism is triggered, reducing the impact and wear during the detachment process, and reducing the risk of component damage caused by sharp edges, making the triggering of the protective mechanism more reliable.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, the present invention provides a stirring device for hard alloy materials, which has the following advantages:

[0017] 1. Through an innovative structural design comprising components such as a protective sleeve, connecting rod, protective frame, protective rod, movable spring, movable block, moving block, movable sleeve, and control sleeve, this device successfully solves the technical problem of traditional mixing equipment having a fixed protection threshold that cannot be flexibly adjusted according to actual usage needs. The device utilizes the cooperation of components such as the control sleeve and movable sleeve to form a highly flexible protection threshold adjustment system. When the protection threshold needs adjustment, rotating the control sleeve drives the locking frame to rotate, causing the locking rod to slide out of the locking groove. Simultaneously, the control sleeve drives the movable sleeve to move along the thread, and the movable sleeve, through the moving block, drives the movable block to slide in the movable groove, changing the compression degree of the movable spring, thereby... By precisely controlling the thrust exerted by the protective block on the protective frame, this adjustable structure ensures that the device can flexibly adjust the protection threshold according to different types, viscosities, and solid-liquid ratios of cemented carbide materials. It accurately controls the protection triggering conditions, effectively avoiding the problem of the motor being in a near-overload state for a long time due to an excessively high protection threshold, thus failing to receive effective protection. At the same time, it also solves the problem of frequent triggering of the protection mechanism during normal load fluctuations due to an excessively low protection threshold, which causes production interruptions. This greatly improves the adaptability and working efficiency of the equipment, significantly reduces the maintenance cost and failure rate of the equipment, and provides more reliable technical support for the production quality control of cemented carbide materials.

[0018] 2. The multi-locking mechanism formed by components such as the locking sleeve, locking rod, and locking frame solves the technical defect of insufficient stability in existing improved stirring devices after the protection threshold is adjusted. This design innovatively integrates a complete locking protection mechanism: First, the elastic reset function of the locking spring causes the locking plate to slide inward, ensuring that the locking rod is accurately inserted into the corresponding locking slot to form an initial lock; second, the locking sleeve is rotated in the opposite direction to move and reset along the outer wall of the protective sleeve, so that the inner wall of the locking sleeve forms a secondary limit on the outer wall of the locking plate, further restricting the movement of the locking plate and locking rod; finally, the precise fit between the locking rod and the locking slot secures the locking mechanism. The frame is firmly locked, ensuring that the positioning frame and control sleeve cannot rotate accidentally. This multi-locking mechanism can maintain high stability under the combined loads of vibration, impact and other factors generated during high-speed operation of the equipment. It effectively prevents the loosening, displacement deflection or drift of the adjustment components or control parameters, and ensures that the carefully adjusted protection threshold parameters will not deviate or fluctuate randomly. Even in continuous production, the stability of the protection threshold can be guaranteed, avoiding equipment damage or material batch defects caused by protection failure. It effectively ensures the continuity of production, prevents the waste of high-value materials, and improves the overall efficiency and process reliability of the production line. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a cemented carbide material stirring device according to the present invention;

[0020] Figure 2This is a cross-sectional view of the mixing tank portion of this utility model;

[0021] Figure 3 This is a cross-sectional view of the protective sleeve, connecting rod, locking sleeve, and control sleeve in this utility model.

[0022] Figure 4 This is a cross-sectional schematic diagram of the protective sleeve, connecting rod, movable sleeve, locking sleeve, and control sleeve in this utility model.

[0023] Figure 5 This is a schematic diagram showing the dispersed structure of the protective sleeve, connecting rod, movable sleeve, locking sleeve, and control sleeve in this utility model.

[0024] In the diagram: 1. Mixing rack; 2. Connecting rod; 3. Protective sleeve; 4. Locking sleeve; 5. Control sleeve; 6. Protective groove; 7. Locking frame; 8. Locking rod; 9. Locking plate; 10. Locking spring; 11. Movable groove; 12. Protective frame; 13. Protective block; 14. Movable spring; 15. Movable block; 16. Moving sleeve; 17. Locking groove; 18. Support frame; 19. Mixing tank; 20. Tank cover; 21. Mounting frame; 22. Gear motor; 23. Feed pipe; 24. Feed cover; 25. Discharge pipe; 26. Limiting frame; 27. Rotating rod; 28. Screw; 29. ​​Anti-slip strip; 30. Movable groove; 31. Movable block. Detailed Implementation

[0025] 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.

[0026] 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.

[0027] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually 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 used to limit this utility model.

[0028] Please see Figures 1-5A cemented carbide material stirring device includes a stirring frame 1, a connecting rod 2 connected to the top of the stirring frame 1, a protective sleeve 3 rotatably sleeved on the outside of the connecting rod 2, a locking sleeve 4 on the outside of the protective sleeve 3, the inner wall of the locking sleeve 4 being movably connected to the outer wall of the protective sleeve 3 by threads, a control sleeve 5 rotatably sleeved on the outside of the locking sleeve 4, a protective groove 6 formed on the outside of the connecting rod 2, a locking frame 7 fixedly mounted on one side of the control sleeve 5, a locking rod 8 slidably mounted in the locking frame 7, a locking plate 9 fixedly connected to one end of the locking rod 8, a locking spring 10 movably sleeved on the outside of the locking rod 8, and the two ends of the locking spring 10 respectively connected to the locking plate 9. Connected to the positioning frame 7, the inner side of the protective sleeve 3 has multiple movable slots 11. A protective frame 12 is slidably provided on the side wall of the movable slot 11. One end of the protective frame 12 is inserted into the protective slot 6. A protective block 13 is slidably provided in the movable slot 11. The protective block 13 abuts against the outer end of the protective frame 12. A movable spring 14 is connected to one side of the protective block 13. A movable block 15 is connected to the other end of the movable spring 14. A movable sleeve 16 is provided on the outer side of the protective sleeve 3. The outer wall of the movable sleeve 16 is movably connected to the inner wall of the control sleeve 5 through threads. A positioning slot 17 is provided on the outer side of the protective sleeve 3. One end of the positioning rod 8 is inserted into the positioning slot 17.

[0029] A support frame 18 is provided on the outside of the mixing rack 1. A mixing tank 19 is detachably provided in the support frame 18. A tank cover 20 is detachably provided on the top of the mixing tank 19. A mounting frame 21 is detachably provided on the top of the tank cover 20. A geared motor 22 is detachably provided on the top of the mounting frame 21. The output end of the geared motor 22 is connected to the top of the protective sleeve 3.

[0030] The mixing tank 19 is detachably equipped with a feed pipe 23 at the top, and a feed cover 24 is provided at the top of the feed pipe 23. The mixing tank 19 is connected to a discharge pipe 25 at the bottom.

[0031] A limiting frame 26 is detachably provided above the can lid 20. A rotating rod 27 is rotatably connected to the top of the limiting frame 26. A screw 28 is detachably connected above the feed pipe 23. The inner side of the rotating rod 27 is movably connected to the screw 28 through a thread. One side of the feed cover 24 is slidably connected to the limiting frame 26.

[0032] In this embodiment, when the device is to be used, first rotate the rotating rod 27 in the forward direction. Since the rotating rod 27 is movably connected to the screw 28 via a thread, and the rotating rod 27 is rotatably connected to the top of the limiting frame 26, while one end of the feed cover 24 is slidably connected to the limiting frame 26, the feed cover 24 and the screw 28 will not rotate. Then the screw 28 will drive the feed cover 24 to rise, and then the raw material can be added through the feed pipe 23. Then rotate the rotating rod 27 in the reverse direction, so that the screw 28 drives the feed cover 24 to slide and reset, re-closing the feed pipe 23. Then turn on the reduction motor 22, and the reduction motor 22 drives the protective sleeve 3 connected to the output end to rotate. Then the protective sleeve 3 drives the movable groove 11 to rotate, so that the movable groove 11 drives the protective block 13 and other components to rotate, and at the same time drives the protective frame 12 to rotate. Then one end of the protective frame 12 passes through The protective groove 6 drives the connecting rod 2 to rotate, thereby driving the stirring frame 1 to stir inside the mixing tank 19. After stirring is completed, the discharge valve connected to the discharge pipe 25 can be opened, and the mixed product can be transported to the next process through the external pipeline. When the protection threshold is triggered during stirring, the stirring frame 1 and the connecting rod 2 cannot rotate, so the protective groove 6 will not rotate. Then the inner wall of the protective groove 6 presses against one end of the protective frame 12. Due to the rounded corner design of one end of the protective frame 12 and the inner wall of the protective groove 6, one end of the protective frame 12 will slide out of the protective groove 6. Then the other end of the protective frame 12 will press down on the protective block 13 with an irregular structure design. Then the protective block 13 will slide down in the movable groove 11, so that the distance between the protective block 13 and the movable block 15 is reduced, so that the movable spring 14 is pressed, thereby causing the reduction motor 22 to drive the protective sleeve 3 to run idling, realizing overload protection.

[0033] Please see Figures 3-5 As a further implementation of the overall equipment: multiple anti-slip strips 29 are fixedly connected to the outer side of the locking sleeve 4 and the control sleeve 5.

[0034] The protective sleeve 3 has multiple movable grooves 30 on its side wall, and a movable block 31 is slidably disposed in the movable groove 30. The inner wall of the movable sleeve 16 is fixedly connected by the movable block 31 and the movable block 15.

[0035] Both the end of the locking rod 8 and the inner edge of the locking groove 17 adopt a rounded corner design.

[0036] Both one end of the protective frame 12 and the inner wall of the protective groove 6 are designed with rounded corners.

[0037] More specifically, when the protection threshold needs to be adjusted, first rotate the locking sleeve 4 in the forward direction. The locking sleeve 4 will move along the threads on the outside of the protective sleeve 3, so that the inner wall of the locking sleeve 4 no longer limits the outer wall of the locking plate 9. Then rotate the control sleeve 5 in the forward direction. The control sleeve 5 will drive one side of the locking frame 7 to rotate in the forward direction. Then the locking frame 7 will drive the locking rod 8, the locking plate 9 and the locking spring 10 to rotate in the forward direction. Then the inner wall of the locking groove 17 will press one end of the locking rod 8. Due to the rounded corner design of the inner wall edge of the locking groove 17 and one end of the locking rod 8, one end of the locking rod 8 will slide out of the locking groove 17. Furthermore, the locking rod 8 will cause the locking plate 9 to slide outward, causing the locking plate 9 to stretch the locking spring 10 outward. Simultaneously, due to the threaded connection between the inner wall of the control sleeve 5 and the outer wall of the movable sleeve 16, and the limiting effect of the movable block 31 and the movable groove 30 on the movable sleeve 16, the movable sleeve 16 will not rotate. Then, the movable sleeve 16 will cause the inner movable block 31 to slide along the movable groove 30, causing the movable block 31 to drive the movable block 15 to slide upward in the movable groove 11. Then, the distance between the movable block 15 and the protective block 13 will decrease, causing the movable spring 14 to be compressed to a certain extent. This increases the thrust exerted by the movable spring 14 on the protective block 13, which in turn increases the thrust exerted by the protective block 13 on the protective frame 12. Consequently, one end of the protective frame 12 requires greater force to detach from the protective groove 6. When it is necessary for one end of the protective frame 12 to detach from the protective groove 6 and trigger the protection mechanism with only a smaller force, simply reverse the above steps by rotating the control sleeve 5. When the appropriate protection threshold is reached, stop rotating the control sleeve 5. Then, the locking frame 7 drives the locking rod 8 and other components to rotate to the position corresponding to the locking groove 17. Then, the locking spring 10... Pulling the positioning plate 9 to reset it causes the positioning rod 8 to slide inward and reset, so that one end of the positioning rod 8 is inserted into the corresponding positioning slot 17. Then, rotating the positioning sleeve 4 in the opposite direction causes the positioning sleeve 4 to move and reset along the outer wall of the protective sleeve 3. Then, the inner wall of the positioning sleeve 4 re-limits the outer wall of the positioning plate 9, so that the positioning plate 9 and the positioning rod 8 cannot move. Then, the positioning rod 8 and the positioning slot 17 cooperate to limit and lock the positioning frame 7, so that the positioning frame 7 and the control sleeve 5 cannot rotate accidentally, thereby ensuring the structural stability of the adjusted protection threshold and thus ensuring the stable operation of the protection work.

[0038] In summary, when using or operating the entire equipment: First, rotate the rotating rod 27 forward. Since the rotating rod 27 is connected to the screw 28 via a thread, and is also rotatably connected to the top of the limiting frame 26, while one end of the feed cover 24 is slidably connected to the limiting frame 26, the feed cover 24 and screw 28 will not rotate. Then, the screw 28 will cause the feed cover 24 to rise, allowing raw materials to be added through the feed pipe 23. Next, rotate the rotating rod 27 in the reverse direction, causing the screw 28 to slide the feed cover 24 back to its original position, re-closing the feed pipe 23. Then, turn on the reduction motor 22, which drives the protective sleeve 3 connected to the output end to rotate. The protective sleeve 3 then drives the movable groove 11 to rotate, causing the movable groove 11 to drive the protective block 13 and other components to rotate, simultaneously driving the protective frame 12 to rotate. Then, the protective frame 12... 2. One end drives the connecting rod 2 to rotate through the protective groove 6, thereby driving the stirring frame 1 to stir inside the mixing tank 19. After stirring is completed, the discharge valve connected to the discharge pipe 25 can be opened, and the mixed product can be transported to the next process through the external pipeline. When the protection threshold is triggered during the stirring process, the stirring frame 1 and the connecting rod 2 cannot rotate, so the protective groove 6 will not rotate. Then the inner wall of the protective groove 6 will press against one end of the protective frame 12. Due to the rounded corner design of one end of the protective frame 12 and the inner wall of the protective groove 6, one end of the protective frame 12 will slide out of the protective groove 6. Then the other end of the protective frame 12 will press down on the protective block 13 with an irregular structure design. Then the protective block 13 will slide down in the movable groove 11, so that the distance between the protective block 13 and the movable block 15 is reduced, so that the movable spring 14 is pressed, thereby causing the reduction motor 22 to drive the protective sleeve 3 to run idling, realizing overload protection.

[0039] When the protection threshold needs to be adjusted, first rotate the locking sleeve 4 clockwise. The locking sleeve 4 will move along the threads on the outside of the protective sleeve 3, so that the inner wall of the locking sleeve 4 no longer limits the outer wall of the locking plate 9. Then rotate the control sleeve 5 clockwise. The control sleeve 5 will drive one side of the locking frame 7 to rotate clockwise. Then the locking frame 7 will drive the locking rod 8, the locking plate 9, and the locking spring 10 to rotate clockwise. Then the inner wall of the locking groove 17 will press against one end of the locking rod 8. Due to the rounded corner design of the inner wall edge of the locking groove 17 and one end of the locking rod 8, one end of the locking rod 8 will slide out of the locking groove 17 and lock. Rod 8 causes the locking plate 9 to slide outward, which in turn causes the locking plate 9 to stretch the locking spring 10 outward. Simultaneously, due to the threaded connection between the inner wall of the control sleeve 5 and the outer wall of the movable sleeve 16, and the limiting effect of the movable block 31 and the movable groove 30 on the movable sleeve 16, the movable sleeve 16 will not rotate. Then, the movable sleeve 16 will cause the inner movable block 31 to slide along the movable groove 30, causing the movable block 31 to drive the movable block 15 to slide upward in the movable groove 11. The distance between the movable block 15 and the protective block 13 then decreases, causing the movable spring 14 to be compressed to a certain extent. The increased thrust exerted by the movable spring 14 on the protective block 13 increases the thrust exerted by the protective block 13 on the protective frame 12, thus requiring one end of the protective frame 12 to withstand greater force to detach from the protective groove 6. When it is necessary for one end of the protective frame 12 to detach from the protective groove 6 and trigger the protection mechanism with only a smaller force, the control sleeve 5 can be rotated in the reverse direction as described above. When the appropriate protection threshold is reached, the rotation of the control sleeve 5 is stopped, causing the locking frame 7 to rotate the locking rod 8 and other components to the position corresponding to the locking groove 17. Then, the locking spring 10 returns to its original position. Pulling the positioning plate 9 causes the positioning rod 8 to slide inward and reset, allowing one end of the positioning rod 8 to insert into the corresponding positioning slot 17. Then, the positioning sleeve 4 is rotated in the opposite direction, causing the positioning sleeve 4 to move and reset along the outer wall of the protective sleeve 3. The inner wall of the positioning sleeve 4 then re-limits the outer wall of the positioning plate 9, preventing the positioning plate 9 and the positioning rod 8 from moving. The positioning rod 8 and the positioning slot 17 then cooperate to limit and lock the positioning frame 7, preventing the positioning frame 7 and the control sleeve 5 from rotating accidentally. This ensures the structural stability of the adjusted protection threshold and thus ensures the stable operation of the protection work.

[0040] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model 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 this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A cemented carbide material stirring device, comprising a stirring rack (1), characterized in that: The top of the stirring rack (1) is provided with a connecting rod (2), and a protective sleeve (3) is rotatably sleeved on the outside of the connecting rod (2). A locking sleeve (4) is provided on the outside of the protective sleeve (3). The inner wall of the locking sleeve (4) is movably connected to the outer wall of the protective sleeve (3) by threads. A control sleeve (5) is rotatably provided on the outside of the locking sleeve (4). A protective groove (6) is opened on the outside of the connecting rod (2). A locking frame (7) is fixed on one side of the control sleeve (5). A locking rod (8) is slidably provided in the locking frame (7). A locking plate (9) is fixed on one end of the locking rod (8). A locking spring is movably sleeved on the outside of the locking rod (8). 10) The inner side of the protective sleeve (3) is provided with multiple movable grooves (11), the side wall of the movable groove (11) is provided with a protective frame (12), the movable groove (11) is provided with a protective block (13), one side of the protective block (13) is connected with a movable spring (14), the other end of the movable spring (14) is connected with a movable block (15), the outer side of the protective sleeve (3) is provided with a movable sleeve (16), the outer wall of the movable sleeve (16) is connected to the inner wall of the control sleeve (5) by a thread, the outer side of the protective sleeve (3) is provided with a locking groove (17), one end of the locking rod (8) is inserted into the locking groove (17).

2. The cemented carbide material stirring device according to claim 1, characterized in that: The stirring rack (1) is provided with a support frame (18) on the outside. The support frame (18) is provided with a detachable stirring tank (19). The top of the stirring tank (19) is provided with a detachable tank cover (20). The top of the tank cover (20) is provided with a detachable mounting bracket (21). The top of the mounting bracket (21) is provided with a detachable geared motor (22). The output end of the geared motor (22) is connected to the top of the protective sleeve (3).

3. The cemented carbide material stirring device according to claim 2, characterized in that: The mixing tank (19) is detachably provided with a feed pipe (23) at the top, and a feed cover (24) is provided at the top of the feed pipe (23). The bottom end of the mixing tank (19) is connected to a discharge pipe (25).

4. The cemented carbide material stirring device according to claim 3, characterized in that: A limiting frame (26) is detachably provided above the can lid (20). A rotating rod (27) is rotatably connected to the top of the limiting frame (26). A screw (28) is detachably connected above the feed pipe (23). The inner side of the rotating rod (27) is movably connected to the screw (28) through a thread. One side of the feed cover (24) is slidably connected to the limiting frame (26).

5. A cemented carbide material stirring device according to any one of claims 1-4, characterized in that: Multiple anti-slip strips (29) are fixedly connected to the outer side of the card slot sleeve (4) and the control sleeve (5).

6. The cemented carbide material stirring device according to claim 1, characterized in that: The protective sleeve (3) has multiple movable grooves (30) on its side wall, and a movable block (31) is slidably provided in the movable groove (30). The inner wall of the movable sleeve (16) is fixedly connected by the movable block (31) and the movable block (15).

7. The cemented carbide material stirring device according to claim 1, characterized in that: Both the end of the locking rod (8) and the edge of the inner wall of the locking groove (17) are designed with rounded corners.

8. The cemented carbide material stirring device according to claim 6, characterized in that: The protective frame (12) and the inner wall of the protective groove (6) are both designed with rounded corners.

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