CN216181618U - Vertical scroll mixer agitating unit - Google Patents

Abstract

The utility model relates to a vertical shaft stirrer stirring device, which comprises an equipment shell and a plurality of driving motors, wherein the driving motors are circumferentially arranged on the upper surface of the equipment shell; a rotating part is arranged in the equipment shell, and a driving motor is connected with the rotating part in a driving way; the rotary part comprises a rotary support and a revolution body, the inner ring of the rotary support is connected with the revolution body into a whole through a bolt, a stirring shaft is fixedly arranged on the revolution body, and a stressed gear is sleeved on the stirring shaft; a central gear is fixed at the center of the equipment shell and is meshed with the stressed gear through an intermediate idle gear; when the rotating member rotates, the stirring shaft is driven to revolve to form a revolution driving structure; when the stressed gear on the stirring shaft revolves around the central gear, the stressed gear rotates under the reaction force of the central gear to form a rotation driving structure. The utility model achieves the following beneficial effects: the structure is simplified, the manufacturing cost is low, the heat dissipation effect is good, the stress is uniform, the operation is stable, the revolution and rotation directions are opposite, and the stirring effect is good.

Description

Vertical scroll mixer agitating unit

Technical Field

The utility model relates to a agitated vessel technical field, especially a vertical scroll mixer agitating unit.

Background

At present, two vertical shaft stirring modes mainly exist in the market, one mode is common planetary stirring, and the other mode is convection planetary bidirectional stirring. The convection planet bidirectional stirring means that a part of the planet stirring shafts are in the same revolution direction, and the other part of the planet stirring shafts are opposite to the revolution direction.

However, both of the above-mentioned stirring methods have disadvantages. In the case of the general planetary stirring, since the stirring is performed unidirectionally, the stirring efficiency is low and the stirring uniformity is poor. The convective planetary stirring has the defects: the service life of the stirring blade is reduced due to the fact that the abrasion of the reverse stirring blade is large; due to the forward and reverse asymmetric structure, additional dynamic load can be caused by a transmission system, so that the service life of a bearing is shortened, and finally the reliability of the whole machine is low; and the stirring arms and the blades have small coverage, so that the areas of the radius ranges stirred by the stirring arms do not have overlapped areas, and the stirring effect is not ideal.

Therefore, the company designs a novel stirring device, and the stirring effect is improved while the structure is simplified.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provide the stirring device of the vertical shaft stirrer, which has the advantages of simplified structure, low manufacturing cost, good heat dissipation effect, uniform stress, stable operation, opposite revolution and rotation directions and good stirring effect.

The purpose of the utility model is realized by the following technical scheme: a vertical shaft stirrer stirring device comprises an equipment shell and a plurality of driving motors, wherein the driving motors are circumferentially arranged on the upper surface of the equipment shell;

a rotating part is arranged in the equipment shell, and a driving motor is connected with the rotating part in a driving way;

the rotary part comprises a rotary support and a revolution body, the outer ring of the rotary support is fixed on the equipment shell, and the inner ring of the rotary support is connected with the revolution body into a whole through bolts;

the male rotating body is fixedly provided with a stirring shaft, and a stressed gear is sleeved on the stirring shaft; a central gear which does not rotate is fixed at the center of the equipment shell; the central gear is in driving connection with the stressed gear;

when the revolution body rotates, the stirring shaft is driven to revolve to form a revolution driving structure; when the stressed gear on the stirring shaft revolves around the central gear, the stressed gear rotates under the reaction force of the central gear to form a rotation driving structure.

Furthermore, the male rotating body is also provided with an intermediate idler wheel through an auxiliary shaft; the stressed gear is meshed with the central gear through the intermediate idle gear; when the rotating member rotates forwards, the stressed gear rotates backwards, so that a structure with the rotation directions of revolution and autorotation of the stirring shaft are opposite is formed. The stirring effect is improved.

Furthermore, a plurality of speed reducers are arranged on the upper surface of the equipment shell, and each speed reducer corresponds to one driving motor; and after the output end of the driving motor is in driving connection with the speed reducer, the output gear of the speed reducer is meshed with the inner gear ring of the slewing bearing. The multi-point driving of the inner ring of the slewing bearing is realized, and the stability is improved.

Furthermore, balls are arranged between the inner ring and the outer ring of the slewing bearing; the speed reducers are symmetrically and uniformly distributed along the central axis of the inner ring of the slewing bearing, and the inner ring of the slewing bearing is subjected to forces exerted by the speed reducers and the stirring shaft from the inner direction and the outer direction respectively, so that a structure that the inner ring of the slewing bearing runs stably is formed.

Furthermore, a plurality of scraper arms which are symmetrically and uniformly distributed are also arranged on the male rotating body, scrapers are fixed at the ends of the scraper arms, and edges of the scrapers are in contact with the inner side wall and the inner bottom surface of the equipment shell; the male rotating body is subjected to outward force exerted by the central gear and inward force exerted by the inner side wall of the equipment shell through the scraper arm, and a structure that the male rotating body stably operates is formed.

Further, the stirring shaft is provided with a stirring plate through a cross rod and an inclined rod; the lower end of the stirring shaft is in a prismatic column shape, one end of the cross rod is provided with a mounting head, a plurality of mounting heads are hooped on the prismatic column, the other end of the cross beam fixes the upper end of the diagonal rod through a clamping plate, and the lower end of the diagonal rod is fixed with a stirring plate; the stirring plate is prismatic, and the bottom edge of the stirring plate is contacted with the inner bottom surface of the equipment shell; the stirring shaft drives the inclined rod to rotate through the cross beam, and the inclined rod pulls the stirring plate to move to stir the materials.

Preferably, the surface of the scraper contacting with the inner side wall of the equipment shell is an arc surface.

The utility model has the following advantages:

(1) the driving motor drives the rotating member to rotate by arranging the central gear, and the rotation of the stressed gear is realized because the stressed gear is meshed with the central gear through the intermediate idle gear in the rotating process of the rotating member; namely, the stressed gears are not directly driven in series by the driving motor, but autorotate under the reaction force of the central gear, and the central gear generates outward acting force on the stressed gears which are uniformly distributed in the circumferential direction; compared with the traditional series connection mode, the scheme simplifies the structure, is convenient to manufacture and assemble, increases the heat dissipation area of the gear, and avoids overhigh temperature rise of a transmission system;

(2) the middle idle wheel is arranged on the rotating member, namely the central gear is meshed with the stressed gear through the middle idle wheel, so that the revolution direction of the rotating member is opposite to the rotation direction of the stressed gear, namely the revolution direction and the rotation direction of the stirring shaft are opposite, and the stirring effect is improved;

(3) the driving motor is meshed with the inner gear ring of the slewing bearing through the speed reducer, so that the transmission radius is reduced, the section sizes of parts at each part are greatly reduced, the effective utilization rate of materials is increased, and the processing cost is reduced; the rotating part is subjected to a plurality of acting forces from the center to the outside, and the forces are mutually counteracted, so that the running stability of the rotating part is ensured, and the reliability of the whole machine is effectively improved;

(4) in the rotating part, the stress mode of the inner ring of the rotating support and the male rotating body further ensures the balanced stress of the rotating part and the stable operation;

(5) the scraper blade passes through the mode of down tube pulling, and its scraper blade bottom surface supports the mode of bottom surface in equipment housing for when the scraper blade receives the reaction force of material, can not take place to deflect, further guaranteed good stirring effect.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a top view of the arrangement of the stirring shaft, the stirring plate, the scraper arm and the scraper;

FIG. 3 is a schematic diagram showing the track of one rotation of the stirring arm;

FIG. 4 is a diagram showing the effect of the stirring trace;

in the figure: 1-equipment shell, 2-driving motor, 3-rotating part, 4-rotating support, 5-revolution body, 6-stirring shaft, 7-stress gear, 8-central gear, 9-auxiliary shaft, 10-intermediate idle gear, 11-speed reducer, 12-stirring plate, 13-scraping plate arm, 14-scraping plate, 15-cross bar and 16-diagonal bar.

Detailed Description

The utility model will be further described with reference to the accompanying drawings, but the scope of the utility model is not limited to the following.

As shown in figures 1-4, a vertical shaft stirrer stirring device comprises an equipment shell 1, a rotating member 3 and a stirring shaft 6; the rotating member 3 is arranged on the equipment shell 1 and can rotate, the rotating member 3 is driven by the driving motor 2, and the rotating part of the rotating member 3 is also provided with a stirring shaft 6.

In the scheme, in the rotating member 3, an inner gear ring of the rotating support 4 is meshed with a plurality of speed reducers 11, and the plurality of speed reducers 11 are symmetrically arranged along the center of the rotating member 3; each speed reducer 11 is in driving connection with a respective drive motor 2. The speed reducer 11 and the rotating member 3 are engaged with each other in an inner meshing mode, so that the transmission radius is reduced, the section sizes of parts at each position are greatly reduced, the effective utilization rate of materials is increased, the processing cost is reduced, and the reliability of the whole machine is effectively improved.

The comparatively core design of this scheme is: a stirring shaft 6 and an auxiliary shaft 9 are arranged on the rotary member 3, a stressed gear 7 is sleeved on the stirring shaft 6, and a middle idle wheel 10 is sleeved on the auxiliary shaft 9; meanwhile, a non-rotating central gear 8 is fixed at the center of the equipment shell 1, and the central gear 8 is meshed with the stressed gear 7 through an intermediate idle gear 10.

The stirring shaft 6 is provided with a stirring plate 12, so that the stirring mode of the scheme can be obtained: the driving motor 2 drives the rotating member 3 to rotate through the speed reducer 11; the revolution of the stirring shaft 6 is realized by the rotation of the revolving part 3; when the stirring shaft 6 revolves, because the central gear 8 is immobile, when the stirring shaft 6 revolves around the central gear, the stressed gear 7 of the stirring shaft 6 is meshed with the central gear 8 through the intermediate idle gear 10, and the stirring shaft 6 can rotate under the reaction force; and the revolution of the stirring shaft 6 is opposite to the rotation direction of the rotation, thereby improving the stirring effect.

The self-rotation is automatically realized under the action of the reaction force through the revolution of the stirring shaft 6, and compared with the common transmission mode, the structure is more simplified and compact, the manufacture is simpler, and the assembly is more convenient.

In this embodiment, the rotating member 3 includes a rotating support 4 and a revolving body 5, an outer ring of the rotating support 4 is fixed on the device housing 1, an inner ring of the rotating support 4 is connected with the revolving body 5 through a bolt, and a ball is arranged between the inner ring and the outer ring of the rotating support 4; the inner ring of the rotary support 4 is driven by the driving motor 2, and the male rotor 5 is provided with a stirring shaft 6.

And the inner ring gear of the slewing bearing 4 is meshed with the output gears of the speed reducers 11, the speed reducers 11 are symmetrically and uniformly distributed along the central axis of the inner ring of the slewing bearing 4, and the inner ring of the slewing bearing 4 is subjected to forces applied by the speed reducers 11 and the stirring shaft 6 from the inner direction and the outer direction respectively, so that a structure that the inner ring of the slewing bearing 4 stably runs is formed.

Specifically, a stirring shaft 6 and an auxiliary shaft 9 are fixedly installed on the revolving body 5, and a force-bearing gear 7 of the stirring shaft 6 is meshed with a sun gear 8 through an intermediate idle gear 10, namely, the force applied from the sun gear 8 from the inside to the outside is received. A plurality of scraper arms 13 which are symmetrically and uniformly distributed are further arranged on the revolution body 5, scrapers 14 are fixed at the ends of the scraper arms 13, and the edges of the scrapers 14 are in contact with the inner side wall and the inner bottom surface of the equipment shell, namely the revolution body 5 is also subjected to inward force exerted by the inner side wall of the equipment shell 1 through the scraper arms 13. The male rotor 5 receives forces in both the inner and outer directions to maintain a stable operation. Naturally, the scraper 14 is spaced from the inner side wall of the equipment housing 1 according to the actual situation.

Preferably, the surface of the scraper 14 contacting the inner side wall of the equipment housing 1 is an arc surface.

A stirring plate 12 is arranged at the lower end of the stirring shaft 6 through a cross rod 15 and an inclined rod 16; the lower end of the stirring shaft 6 is in a prismatic column shape, one end of the cross rod 15 is provided with a mounting head, a plurality of mounting heads are hooped on the prismatic column, the other end of the cross rod 15 fixes the upper end of the inclined rod 16 through a clamping plate, and the lower end of the inclined rod 16 is fixed with the stirring plate 12; the stirring plate 12 is prismatic, and the bottom edge of the stirring plate is contacted with the inner bottom surface of the equipment shell 1; the stirring shaft 6 drives the inclined rod 16 to rotate through the cross beam 15, and the inclined rod 16 pulls the stirring plate 12 to move. When stirring board 12 exerts the force to the material promptly, the material is perpendicular to stirring board 12 or the material has certain angle with stirring board 12, and stirring board 12 is rotatory around (mixing) shaft 6 and sun gear 8, makes the material intensive mixing to reach the stirring effect.

The stirring device of the scheme is mainly applied to medium and low grade concrete, and the stirring mode with the revolution direction opposite to the rotation direction can enable the stirring motion track to be smooth and continuous, the stirring density to be high, the speed to be high, the stirring to be labor-saving, and the friction formed by materials in the stirring process to be obviously smaller than that of other types of stirring machines; meanwhile, the revolution motion of positive rotation and the rotation motion of reverse rotation enable the materials to be stirred, sheared and kneaded three-dimensionally more violently, and the coagulated materials, particularly the cement particles which are held into a cluster, are easy to break up, so that the cement is fully hydrated, and the stirring uniformity is better. Compared with the conventional planetary mixer, the mixer has no dead angle during mixing, produces concrete finished products with the same strength, and has the advantages of short mixing time, low cement consumption, energy consumption saving, more complex mixing track, more efficient mixing motion and the like. The concrete can be fully stirred in the shortest time for the concrete with dry hardness, semi-dry hardness, plasticity and various proportions.

The above examples only represent preferred embodiments, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.

Claims (7)

1. The utility model provides a vertical scroll mixer agitating unit, includes equipment casing (1), driving motor (2), and a plurality of driving motor (2) set up in the upper surface department of equipment casing (1) week, its characterized in that:

a rotating part (3) is arranged in the equipment shell (1), and a driving motor (2) is connected with the rotating part (3) in a driving way;

the rotary part (3) comprises a rotary support (4) and a revolution body (5), the outer ring of the rotary support (4) is fixed on the equipment shell (1), and the inner ring of the rotary support (4) is connected with the revolution body (5) into a whole through bolts;

the male rotating body (5) is fixedly provided with a stirring shaft (6), and the stirring shaft (6) is sleeved with a stressed gear (7); a central gear (8) which does not rotate is fixed at the center of the equipment shell (1); the central gear (8) is in driving connection with the stressed gear (7);

when the revolution body (5) rotates, the stirring shaft (6) is driven to revolve to form a revolution driving structure; when the stressed gear (7) on the stirring shaft (6) revolves around the central gear (8), the stressed gear (7) rotates under the reaction force of the central gear (8) to form a rotation driving structure.

2. A vertical axis blender mixing apparatus according to claim 1, wherein: the revolution body (5) is also provided with an intermediate idle wheel (10) through an auxiliary shaft (9);

the stressed gear (7) is meshed with the central gear (8) through an intermediate idle gear (10); when the rotating member (3) rotates forwards, the stressed gear (7) rotates backwards, so that a structure that the rotation directions of revolution and rotation of the stirring shaft (6) are opposite is formed.

3. A vertical axis blender mixing apparatus according to claim 2, wherein: a plurality of speed reducers (11) are arranged on the inner surface of the equipment shell (1), and each speed reducer (11) corresponds to one driving motor (2);

after the output end of the driving motor (2) is in driving connection with the speed reducer (11), the output gear of the speed reducer (11) is meshed with the inner gear ring of the slewing bearing (4).

4. A vertical axis blender mixing apparatus according to claim 3, wherein: balls are arranged between the inner ring and the outer ring of the slewing bearing (4);

the speed reducers (11) are symmetrically and uniformly distributed along the central axis of the inner ring of the slewing bearing (4), and the inner ring of the slewing bearing (4) is subjected to forces exerted by the speed reducers (11) and the stirring shaft from the inner direction and the outer direction respectively, so that a structure for the inner ring of the slewing bearing (4) to stably run is formed.

5. A vertical axis blender mixing apparatus according to claim 3, wherein: the male rotating body (5) is also provided with a plurality of scraper arms (13) which are symmetrically and uniformly distributed, the ends of the scraper arms (13) are fixed with scrapers (14), and the edges of the scrapers (14) are in contact with the inner side wall and the inner bottom surface of the equipment shell;

the male rotating body (5) is subjected to outward force exerted by the central gear (8) and inward force exerted by the inner side wall of the equipment shell (1) through the scraper arm (13), and a structure that the male rotating body (5) runs stably is formed.

6. A vertical axis blender mixing apparatus according to claim 5, wherein: the stirring shaft (6) is provided with a stirring plate (12) through a cross rod (15) and an inclined rod (16);

the lower end of the stirring shaft (6) is prismatic, one end of the cross rod (15) is provided with a mounting head, a plurality of mounting heads are hooped on the prismatic columns, the other end of the cross rod (15) fixes the upper end of the diagonal rod (16) through a clamping plate, and the lower end of the diagonal rod (16) is fixed with a stirring plate (12);

the stirring plate (12) is prismatic, and the bottom edge of the stirring plate is in contact with the inner bottom surface of the equipment shell (1); the stirring shaft (6) drives the inclined rod (16) to rotate through the cross beam (15), and the inclined rod (16) pulls the stirring plate (12) to move, so that a structure that the stirring plate (12) cannot rotate under the reaction of materials is formed.

7. A vertical axis blender mixing apparatus according to claim 6, wherein: the surface of the scraper (14) contacting with the inner side wall of the equipment shell (1) is an arc-shaped surface.

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