Material stirring device of boiling dryer

Abstract

The utility model discloses a material stirring device of a boiling dryer, which comprises a hopper side shaft seat, an outer shaft sleeve is inserted on the hopper side shaft seat, and the outer shaft sleeve can be used for simultaneously arranging a motor driving shaft driven by a motor and a stirring driving shaft used for driving stirring blades to rotate. The lower end of the stirring driving shaft is provided with an expansion sleeve which can cover part of the stirring driving shaft and can adjust the position along the height direction of the stirring driving shaft, and the expansion sleeve is connected with the stirring blades. According to the utility model, a single-cantilever structure is realized through the outer shaft sleeve which can be simultaneously provided with the motor driving shaft and the stirring driving shaft, so that the motor serving as a power source can be arranged outside the hopper, water and oil pollution of the motor are avoided, and the stirring blades are connected through the movable expansion sleeve; and the use height of the stirring blades is changed to adapt to materials with different volumes and volumes, so that the adaptability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medicine processing, in particular to a material stirring device of a boiling dryer. Background Art

[0002] Fluidizing dryer is a drying equipment that heats the air through a heat exchanger to form hot air. The clean hot air is distributed through a valve plate into the body of the fluidizing dryer. The wet material that enters the body of the dryer from the feeder is boiled by the hot air. Since the hot air is in extensive contact with the material, the heat and mass transfer process is increased, so the material can be dried in a shorter time. Fluidizing dryer can be used for drying pharmaceuticals, chemical raw materials, food, grain processing, and feed.

[0003] Publication (Announcement) No.: CN209131239U discloses a fluidized bed dryer, including an upper cylinder, a capture bag disposed in the upper cylinder, a hopper disposed below the upper cylinder, a gas distribution network disposed at the bottom of the hopper, a lower pot disposed below the hopper, an air heat exchanger connected to the side of the lower pot, and a fan connected to the air heat exchanger, and also includes a stirring assembly disposed in the hopper, the stirring assembly includes a fixed frame fixed in the hopper, a stirring motor fixed on the fixed frame and with the output end vertically downward, a stirring shaft fixed on the output end of the stirring motor, and a stirring blade fixed on the stirring shaft. Utility Model Content

[0004] The utility model aims to solve the above-mentioned shortcomings of the prior art and provides a material stirring device for a boiling dryer to solve the above-mentioned problems.

[0005] The utility model adopts a technical solution to solve its technical problems: the hopper side shaft seat has an outer shaft sleeve inserted on the hopper side shaft seat, the outer shaft sleeve can be used to simultaneously set a motor drive shaft driven by a motor and a stirring drive shaft for driving the stirring blade to rotate, the motor drive shaft is arranged horizontally, the stirring drive shaft is arranged vertically, and the two are used to transmit the steering force of the motor drive shaft to the stirring drive shaft through a bevel gear structure, and the lower end of the stirring drive shaft is provided with a tightening sleeve which can cover a part of the stirring drive shaft and can adjust its position along its height direction, and the tightening sleeve is used to connect the stirring blade.

[0006] To be further improved, the outer shaft sleeve includes an integrally formed transverse section and a vertical section. The left end of the transverse section is inserted into the shaft seat on the hopper side and is connected to the motor drive shaft for rotation therein. The vertical section is located at the right end of the transverse section and is connected to the stirring drive shaft for rotation therein.

[0007] For further improvement, an adjusting member which can move and position along the height direction of the stirring drive shaft is arranged in the expansion sleeve, and the adjustable distance of the adjusting member is limited by the expansion sleeve.

[0008] To be further improved, the adjusting part includes an outer ring enclosure, an inner ring enclosure, and an extrusion round block arranged therebetween and symmetrically distributed up and down and with a reserved spacing. Both the outer ring enclosure and the inner ring enclosure have openings that allow the outer ring enclosure to expand outward and the inner ring enclosure to shrink inward when extruded, and the inner circumferential surface of the outer ring enclosure and the outer circumferential surface of the inner ring enclosure are used as extrusion fitting surfaces, the outer circumferential surface and the inner circumferential surface of the extrusion round block are used as extrusion base surfaces in contact with the corresponding extrusion fitting surfaces, and the extrusion force generated by the contact is limited by the preset spacing, and the inner ring enclosure is arranged on the stirring drive shaft.

[0009] Further improvement, the extrusion fitting surface includes an integrally formed raised section and two oblique sections. The raised section is formed at the middle position of the inner circumference of the outer ring enclosure and the outer circumference of the inner ring enclosure and is used as a stop structure. The oblique sections are symmetrically distributed on both sides of the raised section, and the slope gradually decreases from the inside to the outside. The extrusion base surface also has a slope that matches the slope of the oblique section, and the direction of slope reduction is opposite to that of the oblique section.

[0010] For further improvement, an adjusting screw is connected between the two extrusion round blocks, and the adjusting screw increases or decreases the reserved spacing between the two extrusion round blocks by rotating forward or reversely.

[0011] Further improvement, the expansion sleeve includes a body and a cover covering the body, the body has an inner cavity with a step configuration, the adjusting part is placed in the wide section of the inner cavity, the stirring drive shaft passes through the cover and the adjusting part and is placed in the narrow section of the inner cavity, and the height of the narrow section of the inner cavity is used to limit the adjustable distance of the adjusting part.

[0012] Further improvement, the lower end of the body is provided with a socket for inserting the stirring blade.

[0013] The beneficial effects of the utility model are:

[0014] The utility model realizes a single cantilever structure by means of an outer shaft sleeve on which a motor drive shaft and a stirring drive shaft can be simultaneously arranged, so that the motor serving as a power source can be arranged outside the hopper, thereby avoiding water ingress and oil contamination of the motor. The stirring blades are also connected by a movable expansion sleeve to change the use height of the stirring blades to adapt to materials of different volumes and quantities, thereby improving adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the full cross-section structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the full cross-section structure of the adjustable part of the utility model;

[0017] Figure 3 For this utility model Figure 2 A partial enlarged schematic diagram of part A;

[0018] Figure 4 It is a schematic diagram of the full cross-section structure of the expansion sleeve of the utility model. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the accompanying drawings:

[0020] Referring to the accompanying drawings: This material stirring device of the boiling dryer includes a material stirring device of the boiling dryer, including a hopper side shaft seat 1, an outer shaft sleeve 2 is inserted on the hopper side shaft seat 1, and the outer shaft sleeve 2 can be used to simultaneously set a motor drive shaft 3 driven by a motor, and a stirring drive shaft 4 for driving a stirring blade 5 to rotate. The motor drive shaft 3 is arranged horizontally and the stirring drive shaft 4 is arranged vertically, and the two are transmitted to the stirring drive shaft 4 through a bevel gear structure to transfer the steering force of the motor drive shaft 3. The lower end of the stirring drive shaft 4 is provided with a tightening sleeve 7 which can cover a part of the stirring drive shaft 4 and can adjust its position along its height direction, and the tightening sleeve 7 is used to connect the stirring blade 5. The principle of the utility model is that a single cantilever structure is realized by an outer sleeve 2 on which a motor drive shaft 3 and a stirring drive shaft 4 can be simultaneously arranged, so that the motor as a power source can be arranged outside the hopper, avoiding water ingress and oil pollution of the motor. The expansion sleeve 7 is coated on the stirring drive shaft 4 and used to connect the stirring blade 5, which is used to change the use height of the stirring blade 5 to adapt to materials of different volumes and quantities, thereby improving adaptability. The expansion sleeve 7 can be positioned after the position adjustment is completed, so that the effect of overload protection can be achieved, that is, when the material to be stirred is overloaded, the use height position of the stirring blade 5 will not be affected, which undoubtedly improves the processing efficiency.

[0021] The outer shaft sleeve 2 includes an integrally formed transverse section 21 and a vertical section 22. The left end of the transverse section 21 is inserted into the hopper side shaft seat 1 and is connected to the motor drive shaft 3 for rotation. The vertical section 22 is located at the right end of the transverse section 21 and is connected to the stirring drive shaft 4 for rotation. Such an arrangement enables the outer shaft sleeve 2 to meet the requirements of simultaneously setting the motor drive shaft 3 and the stirring drive shaft 4, so that the power transmission between the motor drive shaft 3 and the stirring drive shaft 4 can be achieved through the bevel gear transmission. Bearings are provided at the left and right ends in the transverse section 21 and the upper and lower ends in the vertical section 22. The bearings are not only used to meet the installation requirements of the shaft, but also increase the smoothness of the shaft rotation.

[0022] An adjusting member 6 which can be moved and positioned along the height direction of the stirring drive shaft 4 is arranged in the expansion sleeve 7, and the adjustable distance of the adjusting member 6 is limited by the expansion sleeve 7. Since the expansion sleeve 7 is made of rubber material, the effect of overload protection achieved by only utilizing the friction resistance generated by its material is unstable, that is, there is a specified value for the load weight, so a movable and positionable adjusting member 6 is arranged in the expansion sleeve 7. The adjusting member 6 can move with the expansion sleeve 7 when not positioned, and can prevent itself and the expansion sleeve 7 from moving when positioned, thereby further increasing the overload protection effect of the expansion sleeve 7, and the adjustable distance of the adjusting member 6 is limited by the expansion sleeve 7, that is, the moving distance of the expansion sleeve 7 is limited, which can ensure that the adjustable range of the stirring blade 5 is within a reasonable range.

[0023] The adjusting member 6 comprises an outer ring enclosure 61, an inner ring enclosure 62, and an extrusion round block 63 which is arranged therebetween and is symmetrically distributed in the upper and lower parts and has a reserved spacing. Both the outer ring enclosure 61 and the inner ring enclosure 62 have openings 8 which make the outer ring enclosure 61 expand outward and the inner ring enclosure 62 shrink inward when being extruded, and the inner circumferential surface of the outer ring enclosure 61 and the outer circumferential surface of the inner ring enclosure 62 are used as extrusion fitting surfaces 9, and the outer circumferential surface and the inner circumferential surface of the extrusion round block 63 are used as extrusion base surfaces 10 which are in contact with the corresponding extrusion fitting surfaces 9, and the extrusion force generated by the contact is limited by the preset spacing. The inner ring enclosure 62 is arranged on the stirring drive shaft 4. Such an arrangement can realize the adjusting member 6 in After moving, positioning is achieved, that is, the ability to prevent the expansion sleeve 7 from moving is also achieved. The outer ring enclosure 61 and the inner ring enclosure 62 are squeezed by the squeezing block 63. The outer ring enclosure 61 and the inner ring enclosure 62 are both offset to both sides after being squeezed, that is, the offset is achieved by the squeezing expansion of the outer ring enclosure 61 and the squeezing contraction of the inner ring enclosure 62. In this way, a spacing is formed between the outer ring enclosure 61 and the inner ring enclosure 62 to allow the squeezing block 63 to be placed inside, and the inner ring enclosure 62 acts on the stirring drive shaft 4, and the movement of the expansion sleeve 7 also occurs on the stirring drive shaft 4. Therefore, the inner ring enclosure 62 shrinks inward after being squeezed to increase its clamping strength on the stirring drive shaft 4, thereby achieving the positioning and stopping effect.

[0024] The extrusion fitting surface 9 includes an integrally formed raised section 91 and two oblique sections 92. The raised section 91 is formed at the middle position of the inner circumference of the outer ring enclosure 61 and the outer circumference of the inner ring enclosure 62 and is used as a stop structure. The oblique sections 92 are symmetrically distributed on both sides of the raised section 91, and the slope gradually decreases from the inside to the outside. The extrusion base surface 10 also has a slope that matches the slope of the oblique section 92, and the direction of slope reduction is opposite to that of the oblique section 92. Such an arrangement enables the extrusion round block 63 to provide extrusion to the outer ring enclosure 61 and the inner ring enclosure 62 by moving. The outer ring enclosure 61 or the inner ring enclosure 62 presents inner diameters or outer diameters of different sizes under the action of the oblique section 92, and The closer to the raised section 91, the smaller the inner diameter of the outer ring enclosure 61 and the larger the inner diameter of the inner ring enclosure 62. The extrusion base surface 10 is the opposite. Under the action of the slope, the extrusion block 63 presents outer diameters of different sizes, and the inner diameter becomes larger as it is closer to the raised section 91. As a result, as the extrusion block 63 moves, the thickness of the outer ring enclosure 61 and the extrusion block 63, and the inner ring enclosure 62 and the extrusion block 63 become thicker. In this way, the outer ring enclosure 61 can only expand, and the inner ring enclosure 62 can only shrink to provide a spacing that adapts to the extrusion block 63. This also makes the inner ring enclosure 62 have a greater clamping force on the stirring drive shaft 4, thereby achieving the effect of positioning and stopping.

[0025] An adjusting screw 20 is connected between the two extrusion blocks 63. The adjusting screw 20 increases or decreases the reserved spacing between the two extrusion blocks 63 by rotating forward or reversely. Such a setting utilizes the rotation of the adjusting screw 20 to drive the movement of the extrusion blocks 63, and also drives the two extrusion blocks 63 at the same time through one rod, and the operation is simple.

[0026] The expansion sleeve 7 includes a body 71 and a cover 72 covering the body 71. The body 71 has an inner cavity 71-a with a step configuration. The adjusting member 6 is placed in the wide section of the inner cavity 71-a. The stirring drive shaft 4 passes through the cover 72 and the adjusting member 6 and is placed in the narrow section of the inner cavity 71-a. The height of the narrow section of the inner cavity 71-a is used to limit the adjustable distance of the adjusting member 6. The body 71 allows the adjusting member 6 and the stirring drive shaft 4 to be placed in the expansion sleeve 7, so that the adjusting member 6 can follow the movement of the expansion sleeve 7, and the inner cavity 71-a of the body 71 has an inlet for the stirring drive shaft 4 to enter only at one end, and the other end is in a closed state, which also achieves the purpose of limiting the moving distance of the expansion sleeve 7. The cover 72 seals the inner cavity 71-a to prevent materials from entering the inner cavity 71-a.

[0027] The lower end of the body 71 has a socket 71-b for inserting the stirring blade 5, that is, the connecting rod of the stirring blade 5 is inserted into the socket 71-b, and the inner diameter of the socket 71-b is smaller than the outer diameter of the connecting rod. Based on the material of the expansion sleeve 7, after the connecting rod enters, the socket 71-b is squeezed and expanded to generate resistance to prevent the movement of the connecting shaft, so that the center position of the connecting rod exists in the socket 71-b, so that the stirring range is balanced and one end of the connecting rod will not contact the inner wall of the hopper.

[0028] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A material stirring device for a fluidized bed dryer, characterized in that: The invention comprises a hopper side shaft seat (1), an outer shaft sleeve (2) is inserted on the hopper side shaft seat (1), and the outer shaft sleeve (2) can be used to simultaneously set a motor drive shaft (3) driven by a motor and a stirring drive shaft (4) used to drive a stirring blade (5) to rotate. The motor drive shaft (3) is arranged horizontally and the stirring drive shaft (4) is arranged vertically, and the two are used to transmit the steering force of the motor drive shaft (3) to the stirring drive shaft (4) through a bevel gear structure. The lower end of the stirring drive shaft (4) is provided with a clamping sleeve (7) which can cover a part of the stirring drive shaft (4) and can adjust its position along its height direction, and the clamping sleeve (7) is used to connect the stirring blade (5).

2. The material stirring device of the fluidized bed dryer according to claim 1, characterized in that: The outer shaft sleeve (2) comprises an integrally formed transverse section (21) and a vertical section (22); the left end of the transverse section (21) is inserted into the hopper side shaft seat (1) and is rotatably connected to the motor drive shaft (3); and the vertical section (22) is located at the right end of the transverse section (21) and is rotatably connected to the stirring drive shaft (4).

3. The material stirring device of the fluidized bed dryer according to claim 1, characterized in that: An adjusting member (6) which can be moved and positioned along the height direction of the stirring drive shaft (4) is arranged inside the expansion sleeve (7), and the adjustable distance of the adjusting member (6) is limited by the expansion sleeve (7).

4. The material stirring device of the fluidized bed dryer according to claim 3, characterized in that: The adjusting member (6) comprises an outer ring enclosure (61), an inner ring enclosure (62), and an extrusion round block (63) arranged therebetween and symmetrically distributed in the upper and lower parts and having a reserved spacing. Both the outer ring enclosure (61) and the inner ring enclosure (62) have openings (8) which, when squeezed, cause the outer ring enclosure (61) to expand outwards and the inner ring enclosure (62) to shrink inwards. The inner circumferential surface of the outer ring enclosure (61) and the outer circumferential surface of the inner ring enclosure (62) are used as extrusion fitting surfaces (9). The outer circumferential surface and the inner circumferential surface of the extrusion round block (63) are used as extrusion base surfaces (10) in contact with the corresponding extrusion fitting surfaces (9), and the extrusion force generated by the contact is limited by the preset spacing. The inner ring enclosure (62) is arranged on the stirring drive shaft (4).

5. The material stirring device of the fluidized bed dryer according to claim 4, characterized in that: The extrusion fitting surface (9) comprises an integrally formed raised section (91) and two inclined sections (92); the raised section (91) is formed at a middle position between the inner circumference of the outer ring enclosure (61) and the outer circumference of the inner ring enclosure (62) and serves as a stop structure; the inclined sections (92) are symmetrically distributed on both sides of the raised section (91), and the slope gradually decreases from the inside to the outside; the extrusion base surface (10) also has a slope matching the slope of the inclined section (92), and the direction of slope reduction is opposite to that of the inclined section (92).

6. The material stirring device of the fluidized bed dryer according to claim 4, characterized in that: An adjusting screw (20) is connected between the two extruding round blocks (63), and the adjusting screw (20) increases or decreases the reserved spacing between the two extruding round blocks (63) by rotating forward or reversely.

7. The material stirring device of the fluidized bed dryer according to claim 4, characterized in that: The expansion sleeve (7) comprises a body (71) and a cover (72) covering the body (71); the body (71) has an inner cavity (71-a) with a step-shaped configuration; the adjusting member (6) is placed in a wide section of the inner cavity (71-a); the stirring drive shaft (4) passes through the cover (72) and the adjusting member (6) and is placed in a narrow section of the inner cavity (71-a); the height of the narrow section of the inner cavity (71-a) is used to limit the adjustable distance of the adjusting member (6).

8. The material stirring device of the fluidized bed dryer according to claim 7, characterized in that: The lower end of the body (71) has an insertion hole (71-b) for the stirring blade (5) to be inserted therein.

Images