Transmission device of square cone mixer and its application in drug mixing and granulation

Abstract

The present invention discloses a transmission device of a square cone mixer and its application in drug mixing and granulation, and relates to the technical field of drug mixing and granulation. The device comprises: a transmission component, one end of the transmission component has a driving component, the other end of the transmission component has a mixing component, and the transmission component is used to drive the mixing component to rotate; a driven component, the driven component and the transmission component set the mixing component in the middle and are rotatably connected to the mixing component, and the driven component is used to assist the transmission component to make the mixing component rotate stably. The present invention connects the mixing bin with the driven component through the transmission bin and enables the driving component to drive the mixing bin to rotate. On the one hand, the mixing bin is knocked and vibrated by sliding the limiter in the direction of the mixing bin, and the drug particles or powder extruded into tablets in the mixing bin are broken up, thereby avoiding the problem that the drugs in the mixing bin are extruded into tablets due to the structure of the mixing bin during the rotation and mixing process.

Description

Technical Field

[0001] The invention relates to the technical field of drug mixing and granulation, in particular to a transmission device of a square cone mixer and application thereof in drug mixing and granulation. Background Art

[0002] The square cone mixer is a novel material mixer widely used in the pharmaceutical, chemical, metallurgical, food, light industry, feed and other industries. The transmission device is the core component of the square cone mixer. Its design and performance directly affect the mixing effect and equipment stability. Modern transmission devices use advanced deceleration technology and precise control systems, such as cycloidal pinwheel gearboxes, to achieve efficient and smooth power transmission. These technologies not only improve the mixing efficiency and uniformity of the mixer, but also reduce operating noise and energy consumption, and extend the service life of the equipment.

[0003] A Chinese patent application with application number 2018102811767 discloses a square cone mixer, comprising: a left bracket, a right bracket, a barrel and a frame, wherein the left bracket is mounted at one end of the base, the right bracket is mounted at the other end of the base, rotating shafts are mounted at both ends of the frame, the frame is connected to the left bracket and the right bracket through rotating shaft matching bearings, the barrel is fixed in the frame, a motor and a reducer are mounted inside the right bracket, the shaft of the reducer is connected to the rotating shaft on the frame through a belt, and has the effect of fully mixing crushed powders of different specific gravities, and adding other additive raw materials for mixing together.

[0004] A Chinese patent application with application number 202420093272X discloses a pharmaceutical square cone mixer, comprising a mixer bracket, a square cone container located on the inner side of the mixer bracket, and a connecting bracket for rotationally connecting the square cone container and the mixer bracket. The invention arranges a retractable and length-adjustable bellows under the feed pipe, and cooperates with a clamping mechanism arranged on the side wall of the positioning ring at the bottom end of the bellows, so that the bottom of the bellows can be positioned on the inner side of the receiving container, and has high adaptability.

[0005] Based on the above-mentioned prior art, it can be known that the rotation of the square cone mixer usually adopts a transmission device such as a motor and a reducer to drive the rotating shaft to drive the barrel to rotate so that the drug powder or particles can diffuse, flow, move tangentially, flip and diffuse and shrink under the action of centrifugal force and other forces, thereby achieving the mixing of the drugs. However, during this mixing process, due to the influence of the drug filled in the barrel and its own structure, the center of gravity of the barrel is always in a changing state, so that the force required by the transmission device to drive the barrel to rotate is always in a changing state. After a long period of rotation, the transmission device is easily damaged or the transmission device and the barrel slip, resulting in the problem that mixing cannot continue.

[0006] At the same time, during the rotating mixing process, the drugs in the barrel are easily squeezed into tablets due to the structure of the barrel. However, since there is no breaking device in the barrel, this part of the drugs cannot be evenly mixed with other drugs.

[0007] Furthermore, after the device completes a drug mixing, due to the high hygiene level of the drugs, in order to avoid cross contamination, the drug particles or powder adsorbed on the inside of the barrel need to be effectively cleaned, and the prior art lacks the technology for cleaning the inside of the barrel.

[0008] Therefore, it is necessary to invent a transmission device of a square cone mixer and its application in drug mixing and granulation to solve the above problems. Summary of the invention

[0009] The object of the present invention is to provide a transmission device of a square cone mixer and its application in drug mixing and granulation, so as to solve the problems raised in the above background technology.

[0010] To achieve the above object, the present invention provides the following technical solution: a transmission device, comprising:

[0011] A transmission assembly, one end of which has a driving assembly, and the other end of which has a mixing assembly, wherein the transmission assembly is used to drive the mixing assembly to rotate;

[0012] The driven component and the transmission component mount the mixing component in the middle and are rotationally connected with the mixing component. The driven component is used to assist the transmission component to make the mixing component rotate stably and prevent the fillers in the mixing component from being squeezed against each other during the rotation process. At the same time, the mixing component is emergency braked when the mixing component slips.

[0013] Preferably, the mixing component includes a mixing bin, and transmission bins are fixedly connected on both sides of the mixing bin, and the driven component includes a driven shaft, one end of the driven shaft penetrates the side wall of the transmission bin and extends into the transmission bin and is rotatably connected to the transmission bin, and the other end is fixedly connected to a driven bracket, and the end of the driven shaft extending into the transmission bin is provided with limiting grooves in a ring array, and a limiting member is slidably connected in each of the limiting grooves.

[0014] Preferably, one end of the limiting member located in the limiting groove is fixedly connected to a return spring, a sliding groove is provided in the middle of one end of each limiting member close to the return spring, and a first wedge block is provided on one side of the sliding groove close to the driven shaft.

[0015] Preferably, a limiting ring is fixedly connected inside the transmission bin, and a movable part adapted to the limiting member is provided on the inner ring of the limiting ring. When the movable part rotates following the transmission bin, the position of the movable part is continuously changed so that the movable part and a plurality of limiting members cooperate in sequence to balance the rotational force required for the mixing component, and at the same time the mixing component is vibrated to break up the filler in the mixing component.

[0016] Preferably, the movable part includes a fixing part, which is fixedly connected to the limiting ring, and the fixing part is slidably connected to a locking part at one end close to the limiting part, and the locking part is fixedly connected to a connecting column at one end away from the fixing part, and the connecting column is fixedly connected to a sliding block at one end away from the locking part.

[0017] Preferably, the locking portion includes a connecting piece, the connecting piece is slidably connected to the fixing piece, a cavity is opened inside the connecting piece, a push block is slidably connected inside the connecting piece, two support rods are symmetrically distributed inside the connecting piece, each of the support rods is rotatably connected to a rotating shaft, and the support rod is rotatably connected to the connecting piece through the rotating shaft.

[0018] Preferably, connecting grooves connected to the inner cavity of the connecting piece are provided on both sides of one end of the connecting piece close to the driven shaft, and a second wedge block is slidably connected in each of the connecting grooves, the second wedge block is rotatably connected to one end of the support rod, the end of the support rod connected to the second wedge block can adaptively extend and retract according to the movement of the second wedge block, and a locking hole adapted to the second wedge block is provided on the fixing piece.

[0019] Preferably, the driving assembly includes a driving motor, which is fixedly installed in the supporting assembly. The driving end of the driving motor is fixedly connected to a reducer. The transmission assembly includes a driving shaft, which is drivingly connected to the reducer. The driving shaft is used to drive the mixing assembly to rotate. The outer side of the driving shaft is rotatably connected to a support seat, and the support seat is fixedly installed on the supporting assembly.

[0020] Preferably, a rotating bearing is provided at the connection between the mixing component, the transmission component and the driven component, and the supporting component comprises a supporting frame and a shock-absorbing and buffering component arranged in the supporting frame.

[0021] The present invention also provides the use of the transmission device of the square cone mixer as described above in drug mixing.

[0022] Technical effects and advantages of the present invention:

[0023] 1. The present invention connects the mixing bin with the driven component through the transmission bin and enables the driving component to drive the mixing bin to rotate. On the one hand, the limiting member slides in the direction of the mixing bin to knock and vibrate the mixing bin, so as to break up the drug particles or powder squeezed into tablets in the mixing bin, thereby avoiding the problem that part of the drugs in the mixing bin are squeezed into tablets due to the structure of the mixing bin during the rotating mixing process; on the other hand, after the drugs in the mixing bin are discharged, the mixing bin is made to idle and knocked on the mixing bin through the limiting member, so as to effectively clean the drug powder or particles adsorbed on the inner wall of the mixing bin.

[0024] 2. The present invention, through the mutual cooperation of devices such as the limiter and the movable part, on the one hand, eliminates the extra work done by gravity and centrifugal force on the mixing bin during its rotation, thereby avoiding the problem that the rotation of the mixing bin cannot match the rotation of the driving component and thus the damage to the device; on the other hand, the mixing bin is stopped from rotating by limiting the position of the slider by the limiter, thereby avoiding the problem that the driving component is damaged or the mixing bin continues to rotate when the driving component slips off the mixing bin, causing casualties and further damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 It is a schematic diagram of the overall internal structure of the present invention;

[0027] Figure 3 It is a schematic diagram of a top view of the overall structure of the present invention;

[0028] Figure 4 It is a schematic diagram of the structure of the driven component of the present invention;

[0029] Figure 5 This is a schematic diagram of the exploded structure of the driven component of the present invention;

[0030] Figure 6 It is a schematic diagram of the connection structure between the driven shaft and the limiter of the present invention;

[0031] Figure 7 It is a schematic diagram of the explosion structure of the active part of the present invention;

[0032] Figure 8 This is a schematic diagram of the structure in which the locking portion of the present invention is located below the driven shaft;

[0033] Fig. 9 It is a schematic diagram of the connection structure between the drive assembly and the transmission assembly of the present invention;

[0034] Fig.10 It is a schematic diagram of the connection between the limiter and the movable part located below the driven shaft of the present invention;

[0035] Fig.11 It is a schematic diagram of the connection between the limiter and the movable part located above the driven shaft of the present invention.

[0036] In the figure:

[0037] 10. Driving assembly; 11. Driving motor; 12. Speed ​​reducer;

[0038] 20. Transmission assembly; 21. Support seat; 22. Driving shaft;

[0039] 30. Mixing assembly; 31. Mixing chamber; 32. Transmission chamber; 33. Limiting ring; 34. Movable part; 341. Fixing part; 342. Connecting column; 343. Sliding block; 35. Locking part; 351. Connecting part; 352. Pushing block; 353. Support rod; 354. Rotating shaft; 355. Second wedge block;

[0040] 40. driven assembly; 41. driven shaft; 42. driven bracket; 43. limiting groove; 44. limiting member; 45. return spring; 46. sliding groove; 47. first wedge block;

[0041] 50. Support assembly. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] like Figure 1-2 As shown, the first embodiment of the present invention provides a transmission device of a square cone mixer, which includes a transmission assembly 20, one end of the transmission assembly 20 has a driving assembly 10, and the other end of the transmission assembly 20 has a mixing assembly 30. The transmission assembly 20 is used to drive the mixing assembly 30 to rotate. The driving assembly 10 drives the transmission assembly 20 to rotate the mixing assembly 30, thereby mixing the drug powder or particles in the mixing assembly 30.

[0044] The device also includes a driven component 40, which sets the mixing component 30 between the driven component 40 and the transmission component 20 and is rotatably connected with the mixing component 30. By setting the mixing component 30 between the transmission component 20 and the driven component 40, when the transmission component 20 drives the mixing component 30 to rotate, the mixing component 30 is supported by the driven component 40, thereby preventing the mixing component 30 from vibrating and swinging significantly due to gravity and centrifugal force during rotation, thereby further improving the stability of the device.

[0045] like Fig. 9 As shown, in the present embodiment, the driving assembly 10 includes a driving motor 11, which is fixedly mounted in the supporting assembly 50, and a driving end of the driving motor 11 is fixedly connected with a reducer 12, and a transmission assembly 20 includes a driving shaft 22, which is drivingly connected with the reducer 12, and the driving shaft 22 is used to drive the mixing assembly 30 to rotate, and a support seat 21 is rotatably connected to the outer side of the driving shaft 22, and the support seat 21 is fixedly mounted on the supporting assembly 50. By connecting the driving motor 11 and the reducer 12, the torque of the motor is increased so that the driving motor 11 can drive the mixing assembly 30 to rotate through the driving shaft 22, thereby avoiding the problem that the driving motor 11 is overloaded and damaged due to the excessive weight of the mixing assembly 30 itself.

[0046] In this embodiment, a rotating bearing is provided at the connection between the mixing component 30 and the transmission component 20 and the driven component 40. The support component 50 includes a support frame and a shock-absorbing and buffering component arranged in the support frame. By setting the rotating bearing, the radial load of the mixing component 30 is increased to avoid the problem that the mixing component 30 causes damage to the transmission component 20 and the driven component 40 under the action of gravity. At the same time, the support frame and the shock-absorbing and buffering component cooperate with the rotating bearing to further improve the stability and noise reduction ability of the device.

[0047] It should be noted that the shock-absorbing and buffering components include but are not limited to conventional mechanical structures with shock-absorbing functions such as shock-absorbing springs and shock-absorbing washers.

[0048] like Figure 3 As shown, in the present embodiment, the mixing assembly 30 includes a mixing bin 31, and transmission bins 32 are fixedly connected on both sides of the mixing bin 31, and the driven assembly 40 includes a driven shaft 41, one end of the driven shaft 41 penetrates the side wall of the transmission bin 32, extends into the transmission bin 32 and is rotatably connected to the transmission bin 32, and the other end is fixedly connected to a driven bracket 42. By arranging transmission bins 32 on both sides of the mixing bin 31, and making the driving shaft 22 fixedly connected to the transmission bin 32 on one side, and the driven shaft 41 rotatably connected to the transmission bin 32 on the other side, when the driving shaft 22 is driven by the reducer 12 to rotate, the driving shaft 22 drives the transmission bin 32 on one side to rotate, and makes the mixing bin 31 fixedly connected to the transmission bin 32 rotate, at this time, since the transmission bin 32 on the other side is rotatably connected to the driven shaft 41, the mixing bin 31 will drive the transmission bin 32 on the other side to rotate around the driven shaft 41, so that the drug powder or particles in the mixing bin 31 are evenly mixed.

[0049] It should be particularly noted that the overall structure of the mixing bin 31 is in the shape of a square cone, that is, the mixing bin 31 is composed of a conical portion at the bottom and a square portion at the top which are spliced ​​together, and a feed port is provided at the top of the mixing bin 31, and a discharge port is provided at the bottom of the mixing bin 31. In order to facilitate the feeding of drug powder or granules into the mixing bin 31, a feeding device can be provided on the supporting assembly 50, so that different amounts of drug powder or granules can be fed into the mixing bin 31.

[0050] like Figure 4-7 As shown, based on the transmission device of the above embodiment, in another embodiment of the present invention, one end of the driven shaft 41 extending into the transmission bin 32 is provided with a limiting groove 43 in a ring array, and each limiting groove 43 is slidably connected to a limiting member 44, and one end of the limiting member 44 located in the limiting groove 43 is fixedly connected to a return spring 45, and a sliding groove 46 is provided in the middle of one end of each limiting member 44 close to the return spring 45, and a first wedge block 47 is provided on the side of the sliding groove 46 close to the driven shaft 41. Through the design of the return spring 45, when the limiting member 44 slides in the limiting groove 43 under the push of an external force and when the external force disappears, the return spring 45 will pull the limiting member 44 to return to its initial state, so that the limiting member 44 can continue to maintain a working state.

[0051] In this embodiment, a limit ring 33 is fixedly connected to the transmission bin 32 connected to the driven assembly 40, and a movable part 34 adapted to the limit piece 44 is provided on the inner ring of the limit ring 33. When the transmission bin 32 rotates under the drive of the mixing bin 31, the limit ring 33 fixedly connected to the transmission bin 32 will rotate along with the transmission bin 32. At this time, the movable part 34 fixedly connected to the limit ring 33 will rotate around the driven shaft 41. Through the continuous rotation of the movable part 34, the movable part 34 and multiple limit pieces 44 are in contact with each other, and the first wedge block 47 on the limit piece 44 is squeezed, so that the limit piece 44 slides in the limit groove 43 toward the mixing bin 31 and knocks the mixing bin 31 to vibrate the mixing bin 31, thereby breaking the drug powder or particles in the mixing bin 31.

[0052] In this embodiment, the movable part 34 includes a fixing part 341, which is fixedly connected to the limiting ring 33. The fixing part 341 is slidably connected to the locking part 35 at one end close to the limiting part 44, and the locking part 35 is fixedly connected to a connecting column 342 at one end away from the fixing part 341. The connecting column 342 is fixedly connected to a slider 343 at one end away from the locking part 35.

[0053] like Fig.10As shown, in the process of the movable part 34 rotating with the driven shaft 41 as the axis, when the movable part 34 is located below the driven shaft 41 and cooperates with the limiting member 44 arranged on the bottom side of the driven shaft 41, the locking part 35 will slide downward in the fixing member 341 under the action of gravity. At this time, the locking part 35 will drive the sliding block 343 to slide downward through the connecting column 342, and because the limiting member 44 is arranged on the driven shaft 41 in a circular array with the driven shaft 41 as the center, at this time, the first wedge block 47 in the limiting member 44 located below the driven shaft 41 is located in the upper half of the sliding groove 46. In this state, the sliding block 343 will be slidably connected through the sliding groove 46 arranged on the limiting member 44, and at this time, the movable part 34 cannot push the limiting member 44 to slide.

[0054] like Fig.11 As shown, when the movable part 34 is located above the driven shaft 41 and cooperates with the limiting piece 44 arranged on the top side of the driven shaft 41, the locking part 35 will slide downward in the fixing piece 341 under the action of gravity. At this time, the locking part 35 will drive the sliding block 343 to slide downward through the connecting column 342, and since the limiting piece 44 is arranged on the driven shaft 41 in a circular array with the driven shaft 41 as the center, the first wedge block 47 in the limiting piece 44 above the driven shaft 41 is located in the lower half area of ​​the sliding groove 46. In this state, the sliding block 343 will cooperate with the first wedge block 47 in a wedge shape and push the limiting piece 44 to slide in the limiting groove 43. The limiting piece 44 slides in the direction of the mixing bin 31 to knock and vibrate the mixing bin 31, thereby improving the mixing effect of the drug powder or particles in the mixing bin 31.

[0055] like Figure 8 As shown, based on the transmission device of the above embodiment, in another embodiment of the present invention, the locking portion 35 includes a connecting piece 351, the connecting piece 351 is slidably connected to the fixing piece 341, a cavity is opened inside the connecting piece 351, a push block 352 is slidably connected inside the connecting piece 351, two support rods 353 are symmetrically distributed inside the connecting piece 351, each support rod 353 is rotatably connected to a rotating shaft 354, and the support rod 353 is rotatably connected to the connecting piece 351 through the rotating shaft 354, and connecting grooves connected to the inner cavity of the connecting piece 351 are opened on both sides of one end of the connecting piece 351 close to the driven shaft 41, and a second wedge block 355 is slidably connected in each connecting groove, the second wedge block 355 is rotatably connected to one end of the support rod 353, and the end of the support rod 353 connected to the second wedge block 355 can be adaptively extended and retracted according to the movement of the second wedge block 355, and a locking hole adapted to the second wedge block 355 is opened on the fixing piece 341.

[0056] When the driving component 10 drives the transmission component 20 to rotate, the mixing component 30 connected to the transmission component 20 rotates. In this process, for the convenience of description, the rotation of the mixing component 30 is divided into two steps for explanation. The first step: the conical portion of the mixing chamber 31 rotates from the bottom to the top; the second step: the conical portion of the mixing chamber 31 rotates from the top to the bottom, and the movable portion 34 is arranged on the same side as the conical portion of the mixing chamber 31, that is, when the conical portion of the mixing chamber 31 is located at the bottom, the movable portion 34 is also located at the bottom.

[0057] First, when the mixing assembly 30 is performing the first rotation, the initial positions of the conical portion of the mixing chamber 31 and the movable portion 34 are both directly below the driven shaft 41. At this time, under the action of gravity, the push block 352 will move in the direction of the second wedge block 355 and wedge-fit with the wedge surface of the second wedge block 355, thereby pushing the second wedge block 355 out of the connecting piece 351 and locking it with the fixing piece 341, thereby limiting the position of the connecting piece 351. When the conical portion of the mixing chamber 31 rotates from bottom to top, under the action of centrifugal force, the push block 352 is always wedge-fitted with the second wedge block 355, thereby preventing the second wedge block 355 from rotating in the first rotation process. The locking portion 35 will shrink inside the middle connecting member 351, and in this process the locking portion 35 will drive the slider 343 to slide downward through the connecting column 342, and since the limiting member 44 is arranged on the driven shaft 41 in a circular array with the driven shaft 41 as the center, at this time the first wedge block 47 in the limiting member 44 below the driven shaft 41 is located in the upper half of the sliding groove 46, and the slider 343 is located in the lower half of the sliding groove 46. In this state, the slider 343 will be slidably connected through the sliding groove 46 arranged on the limiting member 44, thereby avoiding additional resistance during the first rotation process of the mixing chamber 31, resulting in the problem that the driving assembly 10 cannot normally drive the mixing chamber 31 to rotate.

[0058] Secondly, when the mixing chamber 31 completes the first rotation and performs the second rotation, the conical portion of the mixing chamber 31 will rotate downward from the top. At this time, since the movable portion 34 rotates to the top and contacts the upper limiting member 44, under the action of gravity, the push block 352 will move in the direction away from the second wedge block 355, and push the support rod 353 to make the two second wedge blocks 355 approach each other to release the limit of the connecting member 351 and the fixing member 341. Therefore, the connecting member 351 will drive the slider 343 to move in the direction close to the driven shaft 41 under the action of gravity, and since the limiting member 44 is arranged on the driven shaft 41 in an annular array with the driven shaft 41 as the center, at this time, the first wedge block 47 in the limiting member 44 above the driven shaft 41 is located in the sliding groove 4 6, and the slider 343 is also located in the lower half of the sliding groove 46. In this state, the slider 343 will cooperate with the first wedge block 47 in a wedge shape and push the limiting member 44 to slide in the limiting groove 43. The limiting member 44 slides in the direction of the mixing chamber 31 to knock and vibrate the mixing chamber 31, so as to break up the drug particles or powder squeezed into sheets in the mixing chamber 31, thereby avoiding the problem that part of the drugs in the mixing chamber 31 are squeezed into sheets due to the structure of the mixing chamber 31 during the rotation and mixing process. At the same time, after the drugs in the mixing chamber 31 are discharged, the mixing chamber 31 is made to idle and the mixing chamber 31 is knocked by the limiting member 44, so as to effectively clean the drug powder or particles adsorbed on the inner wall of the mixing chamber 31.

[0059] Again, when the mixing chamber 31 is performing the second-step rotation, it will continuously contact the multiple limit members 44 provided on the driven shaft 41. The limit members 44 and the return spring 45 provide resistance to the second-step rotation of the mixing chamber 31, thereby avoiding the extra work done by gravity when the mixing chamber 31 rotates from top to bottom under the action of gravity and centrifugal force, resulting in the rotation of the mixing chamber 31 being unable to match the rotation of the driving assembly 10, thereby causing damage to the device.

[0060] It should be noted that, combined with Figure 8 It can be seen that since there is only one movable part 34 and the movable part 34 will rotate around the driven shaft 41 following the rotation of the mixing chamber 31, when the movable part 34 is located below the driven shaft 41, the push block 352 will move away from the driven shaft 41 under the action of gravity and push the second wedge block 355 to extend outward; similarly, when the movable part 34 rotates to the top of the driven shaft 41, the push block 352 will move toward the driven shaft 41 under the action of gravity and push the support rod 353 to retract the two second wedge blocks 355 into the connecting member 351.

[0061] Finally, when the driving assembly 10 drives the mixing chamber 31 to rotate, and the driving assembly 10 is accidentally damaged and cannot drive the mixing chamber 31 to rotate normally, the mixing chamber 31 loses the drive of the driving assembly 10 and will swing downward rapidly under the action of gravity. Since the centrifugal force is proportional to the rotation speed, the centrifugal force received by the push block 352 will increase instantaneously at this time, and the push block 352 will be controlled to move in a direction away from the center of the driven shaft 41. During this process, the push block 352 will first push the support rod 353 to rotate so that the two second wedge blocks 355 move toward the inside of the connecting member 351 to unlock the locking portion 35 and the fixing member 341, and under the action of the centrifugal force, the locking portion 35 drives the slider 343 to move away from the axis of the driven shaft 41. The slider 343 moves and squeezes the supporting spring. During this process, when the slider 343 contacts the limit piece 44 during rotation, the locking portion 35 squeezes the supporting spring under the action of centrifugal force, so that the locking portion 35 drives the slider 343 to move away from the axial direction of the driven shaft 41 by a greater amount than the movement under the above-mentioned normal rotation. Therefore, the slider 343 will not slide in the sliding groove 46, but will contact the end of the limit piece 44 away from the driven shaft 41. The slider 343 is limited by the limit piece 44 to stop the rotation of the mixing chamber 31, thereby avoiding damage to the drive component 10 or the mixing chamber 31 continuing to rotate when the drive component 10 slips off, causing casualties and expanding damage.

[0062] Based on the above embodiments, the present invention further provides the use of the transmission device of the square cone mixer as described above in drug mixing and granulation, so as to further optimize the mixing effect of drug granulation.

[0063] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A transmission device for a square cone mixer, comprising a support assembly, characterized in that: The transmission device also includes: A transmission assembly, one end of which has a driving assembly, and the other end of which has a mixing assembly, wherein the driving assembly includes a driving motor, which is disposed in the supporting assembly, and a reducer is disposed at the driving end of the driving motor, wherein the transmission assembly includes a driving shaft, which is drivingly connected to the reducer, and the driving shaft can drive the mixing assembly to rotate, and a support seat is rotatably connected to the outer side of the driving shaft, and the support seat is disposed on the supporting assembly; A driven component, wherein the driven component and the transmission component are arranged between the mixing component and are rotationally connected with the mixing component, and the driven component is used to assist the transmission component to make the mixing component rotate stably and prevent the fillers in the mixing component from being squeezed against each other during the rotation process, and to perform emergency braking on the mixing component when the mixing component slips; The mixing assembly includes a mixing bin, transmission bins are respectively provided on both sides of the mixing bin, the driven assembly includes a driven shaft, one end of the driven shaft penetrates the side wall of the transmission bin and extends into the transmission bin and is rotatably connected to the transmission bin, and the other end is fixedly connected to a driven bracket, and the end of the driven shaft extending into the transmission bin is provided with limiting grooves in a ring array, and each of the limiting grooves is slidably connected with a limiting member; one end of the limiting member located in the limiting groove is fixedly connected with a return spring, and a sliding groove is provided in the middle of one end of each limiting member close to the return spring, and a first wedge block is provided on the side of the sliding groove close to the driven shaft; A limit ring is fixedly connected inside the transmission bin, and an inner ring of the limit ring is provided with a movable part adapted to the limit member, and the movable part includes a fixing member, and an end of the fixing member close to the limit member is slidably connected with a locking part; The locking part includes a connecting piece, the connecting piece is slidably connected to the fixing piece, a cavity is provided inside the connecting piece, a push block is slidably connected inside the connecting piece, two supporting rods are symmetrically arranged inside the connecting piece, each supporting rod is rotatably connected to a rotating shaft, and the supporting rod is rotatably connected to the connecting piece through the rotating shaft; The connecting member is provided with connecting grooves connected to the inner cavity of the connecting member on both sides of one end close to the driven shaft, and a second wedge block is slidably connected in each of the connecting grooves, the second wedge block is rotatably connected to one end of the support rod, and the end of the support rod connected to the second wedge block can adaptively extend and retract according to the movement of the second wedge block, and the fixing member is provided with a locking hole adapted to the second wedge block, and the side of the connecting member away from the driven shaft is elastically connected to the fixing member through a supporting spring.

2. The transmission device according to claim 1, characterized in that: When the movable part rotates with the transmission bin, the movable part and the plurality of limit members cooperate in sequence to balance the rotational force required by the mixing assembly through the continuous change of the position of the movable part, and the mixing assembly is vibrated to break up the filler in the mixing assembly.

3. The transmission device according to claim 2, characterized in that; The fixing piece is fixedly connected to the limiting ring, one end of the locking part away from the fixing piece is fixedly connected to a connecting column, and one end of the connecting column away from the locking part is fixedly connected to a sliding block.

4. The transmission device according to claim 3, characterized in that: A rotating bearing is provided at the connection between the mixing component, the transmission component and the driven component. The supporting component comprises a supporting frame and a shock absorbing and buffering component arranged in the supporting frame.

5. Use of the transmission device according to any one of claims 1 to 4 in drug mixing.

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