CN201287035Y

CN201287035Y - Stirring shaft assembly for stirring device

Info

Publication number: CN201287035Y
Application number: CNU2008201584077U
Authority: CN
Inventors: 李军; 李克俭; 任黔湘
Original assignee: Hunan Wantong Electric Power Technology & Engineering Co Ltd
Current assignee: HUNAN WANTONG TECHNOLOGY CO., LTD.
Priority date: 2008-09-08
Filing date: 2008-09-08
Publication date: 2009-08-12
Anticipated expiration: 2018-09-08

Abstract

The utility model discloses an agitating shaft assembly for an agitator. The agitating shaft comprises a main shaft, a left shaft head and a right shaft head (7 and 9) which are arranged at two ends of the main shaft, as well as a blade socket (2) and blades (3) arranged on the blade socket (2). The main shaft is a square agitating shaft (4); the blade socket (2) and the blades (3) thereof are arrayed in a bifilar helix manner; the blade socket (2) is mounted on the square agitating shaft (4) through a blade base plate (5); and two ends of the square agitating shaft (4) are connected with the left and the right shaft heads (7 and 9) through coupling flanges (6 and 8). The utility model has the advantages of strong bending and flexing resistance, high mixing rate, longer service life, more convenient assembly and disassembly, simple structure, reliable performance and low cost.

Description

Mixer shaft assembly

Technical field

The utility model relates to a kind of shaft assembly, particularly relates to a kind of mixer shaft assembly.

Background technology

Domestic big production capacity (more than 500 tons/hour) mixer mixes the axle situation at present:

1, the mixing axle construction form of domestic big production capacity stirring mixer is formed its concrete structure such as Fig. 1 and Fig. 2 by blade seat 2, the blade 3 of circular main shaft 1, single-wire helix arrangement at present.

2, big production capacity mixer generally mixes the defective of axle:

(1), circular mixes an axle bending resistance, anti-crawl agentdefiection ability, because the span that big production capacity mixer mixes axle is big.

(2), in identical mixing distance, the blade quantity of single-wire helix lacks than bifilar helix, composite rate is low.

(3), the mixing axle of overall formula is inconvenient to assemble and demolition.

The utility model content

Technical problem to be solved in the utility model provides a kind of bending resistance, the anti-crawl agentdefiection ability is strong, the mixer shaft assembly of composite rate height, longer service life.

In order to solve the problems of the technologies described above, the mixer that the utility model provides shaft assembly, comprise main shaft and be arranged at the left and right sides spindle nose at main shaft two ends, and blade seat and the blade that is installed on the blade seat, described main shaft is the square shaft, and described blade seat and blade thereof are the bifilar helix arrangement and described blade seat is installed on the described square shaft by the blade seat board.

As a kind of improvement of the present utility model, the two ends of described square shaft connect with described left and right sides spindle nose by coupling flange.

Adopt the mixer shaft assembly of technique scheme, because blade seat, blade, blade seat board that mixer is arranged by left and right sides spindle nose, coupling flange, square shaft, bifilar helix with the shaft assembly are formed, its advantage is:

(1), under situation with area of section, square shaft bending resistant section coefficient ratio circular shaft is big, can weld the reinforcement gusset in the axle, so square shaft bending resistance, anti-crawl agentdefiection, antitorque energy force rate circular shaft are strong.

(2), in identical mixing distance, the blade quantity of bifilar helix is Duoed one times than the single-wire helix blade quantity, so the composite rate height.

The shaft of (3), flange coupling formula is more convenient than the shaft assembling and the demolition of overall formula.

(4), the board-like dual connection of blade seat not only increased the intensity of shaft but also shaft is played the better protect effect, makes the longer service life of shaft, the assembling and the demolition of blade seat are convenient.

In sum, the utility model is that a kind of bending resistance, anti-crawl agentdefiection ability are strong, and composite rate height, longer service life, assembling and demolition are convenient and simple in structure, dependable performance, mixer with low cost shaft assembly.

Description of drawings

Fig. 1 is original mixer shaft assembly structure schematic diagram;

Fig. 2 is along A-A line cut-away view among Fig. 1;

Fig. 3 is the utility model structural representation;

Fig. 4 is along B-B line cut-away view among Fig. 3.

The specific embodiment

The utility model is described in further detail below in conjunction with the drawings and specific embodiments.

Referring to Fig. 3 and Fig. 4, the left end of square shaft 4 connects with left spindle nose 7 by first coupling flange 6, the right-hand member of square shaft 4 connects with right spindle nose 9 by second coupling flange 8, and blade seat 2 and blade 3 thereof are the bifilar helix arrangement and blade seat 2 is installed on the square shaft 4 by blade seat board 5.

Claims

1, a kind of mixer shaft assembly, comprise main shaft and be arranged at the left and right sides spindle nose (7,9) at main shaft two ends, and blade seat (2) and be installed in blade (3) on the blade seat (2), it is characterized in that: described main shaft is square shaft (4), and described blade seat (2) and blade (3) thereof are the bifilar helix arrangement and described blade seat (2) is installed on the described square shaft (4) by blade seat board (5).

2, mixer according to claim 1 shaft assembly is characterized in that: the two ends of described square shaft (4) connect with described left and right sides spindle nose (7,9) by coupling flange (6,8).