CN102728262A - Blender - Google Patents

Abstract

The invention discloses a blender, both rotation direction and rotational speed of which can be controlled. The blender mainly comprises a mixing barrel, a motor, a reducer, an engine base, a chain wheel, a transducer, a transmission shaft, a pedestal and a drive wheel. The reducer and the transducer are arranged on the engine base. One end of the reducer is connected with the motor and the other end is connected with the chain wheel through a motor rotor. The mixing barrel is supported on the pedestal by rollers which are uniformly and symmetrically disposed on both sides of the pedestal. The rollers are connected with the drive wheel. The transmission shaft is installed between the drive wheel and the chain wheel. The rotation direction and rotational speed of the blender are controlled and adjusted through the transducer. The blender can be used on an occasion which requires a large amount of mixed material once.

Description

A kind of batch mixer

Technical field

The present invention relates to a kind of batch mixer, particularly relate to the drive unit of batch mixer.

Background technology

Batch mixing machinery in the application of engineering machinery field more and more widely, for example a large amount of cement batch mixing cars that use on the construction site, and mixing drum, mixer etc.; The common feature of these equipment is flexible, but this kind equipment volume is less, and its direction of rotation, velocity of rotation all are fixed singles; Unadjustable; And driving power is less, and No. one time the batch mixing amount is also little, can not satisfy a big occasion requirement of batch mixing amount.

Summary of the invention

For solving the problems of the technologies described above, the invention provides the batch mixer that a kind of direction of rotation and velocity of rotation all can be controlled, can satisfy a bigger occasion requirement of batch mixing amount.

Batch mixer of the present invention mainly comprises mixing machine, motor, reductor, support, sprocket wheel, frequency converter, power transmission shaft, base and driving wheel; Reductor and frequency converter are installed above the support; Reductor one end links to each other with motor; The other end is connected with sprocket wheel through machine shaft, and mixing machine is supported on the base by the roller that is arranged in the base both sides symmetrically, and roller links to each other with driving wheel; Between driving wheel and the sprocket wheel power transmission shaft is installed, the direction of rotation of mixing machine and velocity of rotation are controlled and are regulated through frequency converter.

Compared with prior art; The beneficial effect that the present invention reaches is owing to changed the power drive control pattern of traditional batch mixer; Direction of rotation and the velocity of rotation single from the batch mixer mixing machine become and can control its direction of rotation and velocity of rotation through regulating frequency converter according to actual needs, therefore can satisfy the instructions for use of large-scale batch mixing occasion.

Description of drawings

Fig. 1 is mixing machine force analysis figure;

Fig. 2 is batch mixer integral layout figure;

Fig. 3 is the mixing machine outline drawing;

Fig. 4 is transmission shaft structure figure.

Among the figure: the 1-mixing machine; The 2-motor; The 3-reductor; The 4-support; The 5-sprocket wheel; The 6-frequency converter; The 7-power transmission shaft; The 8-base; The 9-driving wheel; The 10-roller; The 11-baffle ring; 12-axis body I; The 13-key; The 14-shaft coupling; Axis body in the middle of the 15-; 16-axis body II.

The specific embodiment

Below through the embodiment form; Content of the present invention is done further explain; But the scope that should at this point not be interpreted as theme according to the invention only limits to following embodiment; Do not breaking away under the above-mentioned technological thought situation of the present invention, all various modifications, replacement and changes of making according to ordinary skill knowledge and customary means include within the scope of the invention.

Fig. 1 and Fig. 2 are respectively mixing machine force analysis figure and batch mixer integral layout figure; Batch mixer of the present invention mainly comprises mixing machine 1, motor 2, reductor 3, support 4, sprocket wheel 5, frequency converter 6, power transmission shaft 7, base 8, driving wheel 9 and roller 10; Reductor 3 and frequency converter 6 are installed above the support 4; One end of reductor 3 links to each other with motor 2, and the other end is connected with sprocket wheel 5 through machine shaft, and mixing machine 1 is supported on the base 8 by the roller 10 that is arranged in base 8 both sides symmetrically; Roller 10 links to each other with driving wheel 9, between driving wheel 9 and the sprocket wheel 10 power transmission shaft 7 is installed; Said roller 10 has 4, is symmetricly set on the base 8.

When batch mixer is worked; The rotating shaft of motor 2 drives power transmission shaft 7 through sprocket wheel 5 and rotates; And power transmission shaft 7 drives driving wheel 9 rotations; Driving wheel 9 drives roller 10 and rotates, and finally realizes the rotation of mixing machine 1 through the frictional force between roller 10 and the mixing machine 1, and the direction of rotation of mixing machine 1 and velocity of rotation are controlled and regulated through frequency converter 6.

The present invention adopts 4 rollers, 10 supporting mixing machines 1, and mixing machine 1 is fixing, as shown in Figure 3 on axis through the baffle ring 11 on mixing machine 1 left and right directions.

In the accompanying drawing 1:

G----------mixing machine and material gross weight

The supporting force of N1=N2--------roller

Then: $\frac{\mathrm{\&psi;\; G}}{\mathrm{Sin}(180-2\mathrm{\&theta;})}=\frac{\mathrm{<figure-callout\; id="1"\; label="N"\; filenames="HSA00000473266500021.png"\; state="\{\{state\}\}">N</figure-callout>}1}{\mathrm{Sin}\mathrm{\&theta;}}---\left(1\right)$

In the formula, ψ is a weight distribution factor, its span (0.7～1), and therefrom we can calculate the size of the supporting force of both sides roller.

Mixing machine 1 adopts fricting transmissioning mode, and following frictional drive formula is then arranged:

${\mathrm{<figure-callout\; id="1"\; label="i"\; filenames="HSA00000473266500021.png"\; state="\{\{state\}\}">i</figure-callout>}}_1=\frac{d_2}{d_1(1-\mathrm{\&epsiv;})}---\left(2\right)$

In the formula:

i ₁---gearratio;

i ₁---backing roll diameter, unit are millimeter (mm)

d ₂---revolving drum diameter, unit millimeter (mm)

ε---sliding ratio can obtain through consulting " mechanical design handbook ", sees for details: " mechanical design handbook " third edition the 3rd volume, Chemical Industry Press, in December, 1993

The gearratio i1 that calculates through formula (2) will carry out the rounding processing, and with d ₁With d ₂Also be designed to an integer, to make things convenient for structural design.

After above calculating had been arranged, we just can calculate power of motor by torque and the formula (4) that formula (3) calculate driving shaft.

$T=\frac{\mathrm{\&mu;<figure-callout\; id="1"\; label="N\; d"\; filenames="HSA00000473266500021.png"\; state="\{\{state\}\}">N</figure-callout>}{d}_{}{}_1}{2\&times;{10}^{3}K}---\left(3\right)$

In the formula:

μ---coefficient of friction;

N---the thrust that the homonymy backing roll bears, unit is ox (N);

d ₁---mixing machine diameter, unit millimeter (mm);

K---coefficient of reliability.

$p=\frac{T\&times;n_2}{9.55\&times;{10}^3}---\left(4\right)$

In the formula:

T---input torque, unit ox millimeter (Nmm)

n ₂---the driving wheel rotating speed

Large-scale mixing machine is because diameter is big, and length is also big, so transmission also needs a long power transmission shaft; Power transmission shaft is as shown in Figure 4; Adopt universal joint structure, mainly be made up of axis body I12, axis body II16, middle axis body 15 and shaft coupling 14, its central axis I12, axis body II16, middle axis body 15 are connected with key 13 through shaft coupling 14; This structure can reduce the axiality requirement of driving shaft, and convenient adjusting to driving shaft length.

Claims (3)

1. batch mixer; Mainly comprise mixing machine (1), motor (2), reductor (3), support (4), sprocket wheel (5), frequency converter (6), power transmission shaft (7), base (8), driving wheel (9) and roller (10); Reductor (3) and frequency converter (6) are installed above the support (4); One end of reductor (3) links to each other with motor (2); The other end is connected with sprocket wheel (5) through machine shaft, and mixing machine (1) is supported on the base (8) by the roller (10) that is arranged in base (8) both sides symmetrically, and roller (10) links to each other with driving wheel (9); Between driving wheel (9) and the sprocket wheel (10) power transmission shaft (7) is installed, it is characterized in that: the direction of rotation of said mixing machine (1) and velocity of rotation are controlled and are regulated through frequency converter (6).

2. a kind of batch mixer as claimed in claim 1 is characterized in that: said roller (10) is 4, is symmetricly set on the base (8).

3. a kind of batch mixer as claimed in claim 1; It is characterized in that: said power transmission shaft (7) is made up of through shaft coupling the axis body that can be divided into three sections; Mainly be made up of axis body I (12), axis body II (16), middle axis body (15) and shaft coupling (14), its central axis I (12), axis body II (16), middle axis body (15) are connected with key (13) through shaft coupling (14).

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