CN211358421U

CN211358421U - Multi-blade stirrer

Info

Publication number: CN211358421U
Application number: CN201921874066.8U
Authority: CN
Inventors: 魏林江; 黄河; 黄绍全; 刘鹏程
Original assignee: Chongqing Hailian Waterborne Coating Co ltd
Current assignee: Chongqing Hailian Waterborne Coating Co ltd
Priority date: 2019-10-31
Filing date: 2019-10-31
Publication date: 2020-08-28
Anticipated expiration: 2029-10-31

Abstract

The utility model discloses a multi-blade stirrer, including the pivot, by pivot driven oar dish and the stirring rake that is fixed in the oar dish along the radial direction of oar dish, still including corresponding the connecting rod of fixed connection between adjacent stirring rake, the stirring rake comprises a plurality of stirring vane. The ability of fluid shear stress has been strengthened through the connecting rod when the stirring rake during operation, the stability of multi-leaf agitator has been improved, and stirring vane constitutes the cambered surface to stirring rake outside end connection, stirring vane's stability and water conservancy diversion nature have been improved, and inwards cambered surface has also been provided when the stirring rake of agitator reverses, the stirring dynamics has been increased, the effectual stirring fluid that has prevented subsides, and from single-disc leaf formula institutional advancement on the stirring rake for multi-disc leaf formula structure has played the effect of intensive mixing to the stirring thick liquid, the velocity of flow of stirring thick liquid when having accelerated the stirring, the stirring speed of multi-leaf agitator has been improved.

Description

Multi-blade stirrer

Technical Field

The utility model relates to a agitated vessel field, concretely relates to multi-leaf agitator.

Background

The corresponding stirrer is selected according to the physical properties, capacity and stirring purpose of different media, and plays a great role in promoting the chemical reaction speed and improving the production efficiency.

The paddle stirrer is simple in structure, blades are made of flat steel and are welded or fixed on a hub through bolts, the number of the blades is 2, 3 or 4, the blade form can be divided into a straight blade form and a folded blade form, and the blade form can be divided into a flat paddle stirrer and an inclined paddle stirrer according to the shape characteristics of the blades. The flat paddle type stirrer generates radial force, the inclined paddle type stirrer generates axial force, and the paddle type stirrer is suitable for stirring low-viscosity liquid, suspension liquid and dissolved liquid.

In the prior art, the adopted stirrer mostly adopts a single thin stirring blade for fluid circulation, and a series of problems such as low stirring speed, unstable stirrer structure and the like can be caused.

Therefore, in order to solve the above problems, a multi-blade agitator is required, which can increase the agitation rate and strengthen the structure of the agitator.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at overcoming the defect among the prior art, provide a multi-leaf agitator, can improve stirring speed, strengthen the structure of agitator.

The utility model discloses a multi-blade stirrer includes the pivot, by pivot driven oar dish and the stirring rake that is fixed in the oar dish along the radial direction of oar dish, still includes the connecting rod that corresponds fixed connection between adjacent stirring rake, the stirring rake comprises a plurality of stirring vane.

Further, the stirring blades are uniformly increased in length along the radial direction of the paddle disk and are arranged at equal intervals.

Further, a through hole is formed in the center of each stirring blade, each stirring paddle comprises a cushion block which is used for stabilizing adjacent stirring blades and provided with the through hole, and each connecting rod is fixedly connected with each stirring blade and each cushion block.

Further, the stirring rake is a plurality of, the stirring rake includes outside end and medial extremity, the medial extremity is fixed in the paddle dish, and the stirring rake outwards extends with paddle dish tangential parallel, and adjacent stirring vane formation has the water conservancy diversion face that improves stirring speed is connected to the outside end, medial extremity between the adjacent stirring rake supports tightly and fixes.

Further, two connecting parts are arranged on the end part of the inner side.

Furthermore, even the connecting rod is a plurality of, and adjacent connecting rod passes through gasket and bolt locking.

Further, the stirring paddle and the connecting rod can be detached.

The utility model has the advantages that: the utility model discloses a multi-blade stirrer, the ability of fluid shear stress is resisted when having strengthened the stirring rake during operation through the connecting rod, the stability of multi-blade stirrer has been improved, and stirring rake outside end connects stirring vane and constitutes the cambered surface, the stability and the water conservancy diversion nature of stirring vane have been improved, and also inwards cambered surface has been provided when the stirring rake of stirrer reverses, the stirring dynamics has been increased, the stirring fluid subsidence has effectively been prevented, the stability when the stirring rake moved has effectively been improved to the structure of outside end and medial extremity, the life of stirring rake has been improved, and the stirring rake has played the effect of intensive mixing to stirring thick liquid from single-blade structure improvement to multi-blade structure, the velocity of flow of stirring thick liquid when having accelerated the stirring, the shear stress that the stirring rake receives in the fluid has simultaneously been reduced, the stirring speed of multi-blade stirrer has been improved, simultaneously this detachable structure of multi-leaf agitator provides very big facility to the maintenance and the change of equipment.

Drawings

The invention will be further described with reference to the following figures and examples:

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

FIG. 2 is a schematic view of the connecting rod structure of the present invention;

FIG. 3 is a schematic view of the gasket structure of the present invention;

fig. 4 is the schematic diagram of the stirring paddle structure of the present invention.

Detailed Description

Fig. 1 is a schematic structural view of the present invention; FIG. 2 is a schematic view of the connecting rod structure of the present invention; FIG. 3 is a schematic view of the gasket structure of the present invention; fig. 4 is the schematic diagram of the stirring paddle structure of the present invention. As shown in the drawings, the multi-blade stirrer in the embodiment includes a rotating shaft 1, a paddle disk 2 driven by the rotating shaft 1, and stirring paddles fixed to the paddle disk 2 along the radial direction of the paddle disk 2, and further includes a connecting rod 4 correspondingly and fixedly connected between adjacent stirring paddles, and the stirring paddles are composed of a plurality of stirring blades 3.

In this embodiment, 2 centers of paddle dish and pivot 1 pass through thread fixed connection, connect back axial locking, adopt splined connection, and the tip passes through the nut locking, also can be certainly for locking modes that flat key connects etc. prevent to drop, no longer gives unnecessary details here, the maintenance and the change of the agitator of being convenient for, of course, fixed connection also can be through welding or rotate through the bearing and connect in connecting methods such as pivot 1, no longer gives unnecessary details here, and the job stabilization nature of agitator has been improved in the use of connecting rod 4, has improved the work efficiency of agitator with the stirring rake complex simultaneously.

In this embodiment, the stirring blades 3 are uniformly extended in length along the radial direction of the paddle disk 2 and are arranged at equal intervals. The stirring blades 3 are arc-shaped plates, the single-blade structure of the stirring paddle is improved into a multi-blade structure, the use strength of the stirring paddle is improved, the lengths of the stirring blades 3 in the radial direction of the paddle disk 2 are uniformly increased and are arranged at equal intervals, so that the contact surface of the stirring paddle and the fluid is arc-shaped, the fluid can conveniently flow, the area participating in fluid stirring is increased when the stirring paddle is used, an axial flow channel is provided when the fluid flows along the radial direction through gaps between adjacent stirring blades 3, the stirring effect and the stirring speed of the stirring paddle are improved, when the stirrer rotates reversely, the stirring blades 3 are arc-shaped to form an inward arc surface, the stirring force of the settled fluid is increased, the fluid settlement is effectively prevented, the working stability of the multi-blade stirrer is improved by using the connecting rod 4, and the working efficiency of the multi-blade stirrer is improved when the stirring paddle is matched,

in this embodiment, the through-hole is seted up at stirring vane 3 center, the stirring rake is including the cushion 5 that has the through-hole of firm adjacent stirring vane 3, connecting rod 4 fixed connection stirring vane 3 and cushion 5.

In this embodiment, the number of the stirring paddles is multiple, each stirring paddle includes an outer end 6 and an inner end 7, the inner ends 7 are fixed to the paddle disk 2, the stirring paddles extend outward in parallel with the paddle disk 2 in a tangential direction, the outer ends 6 are connected to the adjacent stirring blades 3 to form a flow guide surface for improving the stirring speed, and the inner ends 7 between the adjacent stirring paddles abut against and are fixed.

In the embodiment, the four stirring paddles are uniformly distributed along the radial direction of the paddle disk 2, the inner end parts 7 of the stirring paddles are mutually abutted along the radial direction of the paddle disk 2 in a manner of being vertical to the surfaces of the adjacent stirring paddles and are fixedly arranged on the paddle disk 2, aiming at the conditions that a single-blade stirring paddle in the prior art is used for stirring fluid, the stirring effect is poor during use, the stirring area is small, and the stirring speed is low, a multi-blade stirring paddle is adopted, the stirring paddle is improved from the aspects of the quantity and the structure of the stirring blades 3, so that the fluid is stirred fully and quickly, the arc-shaped edges formed by the connection of the adjacent stirring blades 3 can better play a role in the homeotropic stirring of the fluid, the use of the edge angle edges is easy to influence the service life of the stirring paddles due to the straightness of the fluid, the mechanical resistance is large, and the gaps between the adjacent stirring blades 3 provide passages, certainly, the outer end 6 can be made into a sleeve which is suitable for the shape of the stirring blade 3, and is sleeved on the stirring blade 3 in a bolt connection mode to reinforce the adjacent stirring blade 3, and details are not repeated herein, because the paddle disk 2 and the stirring paddles in the prior art are only connected in an embedded or fixed mode, the stress uniformity of each stirring paddle cannot be ensured, and the damage of the stirrer caused by inertia when the stirring paddles are started or instantaneously braked is easy to occur when the stirring paddles are used in fluid, the stirring paddles in the embodiment adopt four detachable structures, the inner end 7 of the stirring paddles are mutually abutted, the connection between the adjacent stirring paddles is further reinforced, the capability of the stirring paddles presenting fluid shear stress is enhanced when the stirring paddles are used, the inner end 7 is provided with gaps matched with the paddle disk 2, and the gaps are tightly matched when the adjacent stirring paddles are abutted, so that the use strength of the stirring paddles is improved, the stirring rake chooses the folded blade formula stirring rake that the folded blade formula stirring vane constitutes for use, and along 2 radial direction evenly distributed of paddlewheel, not only plays the even stirring that can the fluidics, can improve the fluid flow rate through the stirring vane 3 that sets up on the stirring rake more to improve stirring efficiency, stirring rake integrated into one piece makes, of course, outside end 6 can make alone and in order can dismantle the mode of connection and be connected with the stirring rake, stirring vane 3 also can make alone to the folk prescription to align to grid and interconnect constitution stirring rake, no longer gives unnecessary details here, the stirring rake passes through bolt and 2 fixed connection of paddlewheel, adopts bolted connection can be convenient for the dismantlement of stirring rake to overhaul and change, also can weld mode such as certainly connect paddlewheel 2 and stirring rake, no longer gives unnecessary details here.

In this embodiment, the inner end 7 is provided with two connecting portions 8. Two through holes are arranged at the joint of the stirring paddle and the paddle disc 2 to serve as the connecting part 8, and compared with the connection of a single bolt in the prior art, the connection is more stable, so that the service life of the multi-blade stirrer is prolonged.

In this embodiment, the connecting rods 4 are multiple, and the adjacent connecting rods 4 are locked by a gasket 9 and a bolt. Gasket 9 is "U" shape and partly surrounds in the junction of adjacent connecting rod, and is that rubber material deformation effect is strong, compensates to the difficult shape that only directly adopts bolted connection of connecting rod 4 for the steadiness of connecting rod 4 is stronger.

In the embodiment, the connecting rod 4 is fixedly connected to the adjacent stirring paddles through the gasket 9 and the bolts, so that the radial stress capacity of the stirring paddles is improved, the connecting rod 4 is a circular ring concentric with the paddle disk 2 after being connected, the adjacent stirring paddles are fixedly connected in a mode of penetrating through the centers of the stirring blades 3, the connecting rod 4 enhances the stability and the overall structural strength of the stirrer in use, and details are not repeated herein, the connecting rod 4 is improved compared with the prior art which only depends on the structure of the paddle disk 2 for fixing the stirring paddles, so that the connection among the stirring paddles is reinforced, the paddle disk 2 and the stirring paddles in the prior art are only connected in an embedded or fixed mode, so that the stress uniformity of the stirring paddles cannot be ensured, the situation that the stirring paddles are easily damaged and difficult to maintain when used in special media is reduced, and the connecting mode among the connecting rods 4 is connected by the bolts, convenient to detach and overhaul, and reduces the maintenance man-hour.

In this embodiment, the independent integrated into one piece of connecting rod 4 makes, connecting rod 4 is including setting up in the clamping piece 41 and the connector 42 that supply to be connected with adjacent connecting rod 4 of 4 tip of connecting rod, clamping piece 41 and connector 42 adopt bolt fixed connection, of course, are not limited to this type of connection between the connecting rod 4, also can adopt connected modes such as riveting, no longer describe here, clamping piece 41 and connector 42 position and size are according to actual conditions rational design, all adopt bolt fixed connection between clamping piece 41 and the connector 42, the dismantlement and the maintenance of the equipment of being convenient for.

In this embodiment, the paddle and the connecting rod 4 are both detachable and made of stainless steel material. The stainless steel is selected for use, so that the service life of the equipment can be prolonged in a fluid medium, the overall structural strength is improved by the stainless steel material, and the multi-blade stirrer has great advantages when the equipment is overhauled independently in each structure.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. A multiple blade agitator, comprising: the stirring device comprises a rotating shaft, a paddle disk driven by the rotating shaft, stirring paddles fixed on the paddle disk along the radial direction of the paddle disk, and connecting rods correspondingly and fixedly connected between adjacent stirring paddles, wherein each stirring paddle is composed of a plurality of stirring blades.

2. The multiple blade agitator of claim 1, wherein: the stirring blades are uniformly increased in length along the radial direction of the paddle disk and are arranged at equal intervals.

3. The multiple blade agitator of claim 1, wherein: the through-hole is seted up at the stirring vane center, the stirring rake includes the cushion that has the through-hole of firm adjacent stirring vane, connecting rod fixed connection stirring vane and cushion.

4. The multiple blade agitator of claim 1, wherein: the stirring rake is a plurality of, the stirring rake includes outside end and medial extremity, the medial extremity is fixed in the paddle dish, and the stirring rake outwards extends with the paddle dish tangential parallel, and adjacent stirring vane formation has the water conservancy diversion face that improves stirring speed is connected to the outside end, medial extremity between the adjacent stirring rake supports tightly and fixes.

5. The agitator of claim 4, wherein: two connecting parts are arranged on the end part of the inner side.

6. The multiple blade agitator of claim 1, wherein: the stirring paddle and the connecting rod can be detached.

7. The blender as recited in claim 1, wherein: the connecting rod is a plurality of, and adjacent connecting rod passes through gasket and bolt locking.