CN2767106Y

CN2767106Y - Forced type concrete mixer

Info

Publication number: CN2767106Y
Application number: CN 200520019498
Authority: CN
Inventors: 安孝波; 安中遂
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-03-01
Filing date: 2005-05-19
Publication date: 2006-03-29
Anticipated expiration: 2015-05-19

Abstract

The utility model discloses a forced type concrete mixer, which comprises a mixing barrel. Mixing shafts are assembled in the mixing barrel. The mixing shafts on both end walls of the mixing barrel are respectively provided with an edge arm which is used for cleaning the end wall surface. Both sides of the middle point on the stirring shafts between the two edge arms are respectively provided with a set of mixing arms in spiral type distribution. Two sets of mixing arms are distributed from the end arms to the middle arms in axial direction, and are distributed from the end arms to the middle arms in the rotation direction. The top end of each mixing arm is respectively fixed with mixing blades. The distribution of the two edge arms respectively fall behind the end arms of the mixing arms on the same side on the rotation direction. The positions of the edge arms drop back on the rotation direction of the distribution of the entire mixing arms, and fall behind the end arms of the mixing arm assemblies on the same side. Thus, in actual work, the working resistance of the edge arms is small, the cut friction among the edge arms and the mixing barrel is not generated, the durability degree of the edge arms is raised and the required driving force of the mixing shaft is reduced. Therefore, the utility model can be assembled with an electric motor of small power, the manufacturing cost is reduced and the energy consumption is correspondingly decreased.

Description

A kind of forced concrete mixer

Technical field

The utility model relates to building machinery, especially a kind of forced concrete mixer.

Background technology

The basic structure of existing forced concrete mixer such as Fig. 1, shown in Figure 2: as in mixing drum 1, to be equipped with shaft 2, respectively be equipped with one on the shaft 2 at the end walls place of mixing drum 1 and be used to clear up the limit arm 3 of end wall surface, 10, both sides arm 3, the both sides of the mid point on the shaft 2 between 10 respectively are equipped with one group of spiral mixing arm of arranging, one group of the mid point left side is mixing

arm

4,5,6, one group of the mid point right side is mixing

arm

7,8,9, wherein mixing

arm

4,9 outermost that are in place mixing arm group are the end arm, mixing

arm

6,7 are middle arm near being in the mid point of shaft 2, two groups of mixing arms on axial arranging all from holding arm to middle arm, arranging of direction of rotation all from holding arm to middle arm, the top of each mixing arm all is fixed with stirring vane 11, both

sides arm

3,10 on the arranging of direction of rotation respectively in advance in the mixing arm end arm 4 of homonymy, 9, as shown in Figure 2, the limit arm 3 of both sides, 10 shift to an earlier date on direction of rotation in all mixing arms; And limit

arm

3,10 also is in outermost in the axial direction.Therefore in real work, it is stressed that

limit arm

3,10 should at first be cut concrete, i.e. " take the lead time road ", work the concrete effect of wiping off on mixing drum 1 end face again, so the limit arm can be subjected to backward and to the dual resistance in the axial outside, the limit arm just is easy to torsional deformation and damages long-term and cutting in the mill of barrel; In addition, because the resistance that limit

arm

3,10 is subjected to when stirring concrete to the axial outside, therefore the limit arm can promptly twist towards barrel to the axial outside, that causes limit arm and barrel seriously cuts mill, frictional force has increased the running resistance of shaft between limit arm and the barrel, so just need the powerful motor of configuration to drive shaft, the manufacturing cost of mixer is improved, energy consumption strengthens.

The utility model content

The purpose of this utility model is to provide the limit arm on a kind of shaft stressed less forced concrete mixer, to improve the service life of limit arm, reduces the maintenance rate of equipment.

The technical solution of the utility model is: a kind of forced concrete mixer, comprise mixing drum, be equipped with shaft in the mixing drum, respectively be equipped with one on the shaft at the end walls place of mixing drum and be used to clear up the limit arm of end wall surface, the both sides of the mid point on the shaft between the arm of both sides respectively are equipped with one group of spiral mixing arm of arranging, two groups of mixing arms on axial arranging all from holding arm to middle arm, arranging of direction of rotation all from holding arm to middle arm, the top of each mixing arm all is fixed with stirring vane, and the both sides arm lags behind the mixing arm end arm of homonymy respectively on the arranging of direction of rotation.

The backward angle of described limit arm and the mixing arm end arm of corresponding homonymy is between 0 °～180 °.

The backward angle of described limit arm and the mixing arm end arm of corresponding homonymy is between 0 °～90 °.

Described limit arm be scrape tabular.

The utility model is dropped back the limit arm in the position of the direction of rotation of whole mixing arm layout, make it lag behind the end arm of the mixing arm group of homonymy, like this when real work, be at first stressed by holding arm at first to cut concrete, play a part " take the lead time road ", concrete is turned over away, so in the axial direction stressed very little of limit arm subsequently and can ignoring substantially, the limit arm is very little in axial deformation, and just can keep certain spacing between the mixing drum end wall, and can not cut mill, the working resistance of limit arm is only for clearing up the resistance of end wall surface; Because limit arm working resistance reduces and mixing drum between do not have and to cut mill, the durability degree of limit arm is improved, the required driving force of shaft also reduces, and therefore can assemble low power motor, and manufacturing cost is reduced, energy consumption is corresponding to be reduced.

Description of drawings

Fig. 1 is the structural representation of existing forced concrete mixer;

Fig. 2 is the shaft section figure of existing forced concrete mixer;

Fig. 3 is a structural representation of the present utility model;

Fig. 4 is shaft section figure of the present utility model.

The specific embodiment

As Fig. 3, shown in Figure 4, the forced concrete mixer that the utility model is designed, in mixing drum 21, be equipped with shaft 22, respectively be equipped with one on the shaft 22 at the end walls place of mixing drum 21 and be used to clear up the limit arm 23 of end wall surface, 30,

limit arm

23,30 be scrape tabular, both sides arm 23, the both sides of the mid point on the shaft 22 between 30 respectively are equipped with one group of spiral mixing arm of arranging, one group of the mid point left side is mixing

arm

24,25,26, one group of the mid point right side is mixing

arm

27,28,29, wherein mixing

arm

24,29 outermost that are in place mixing arm group are the end arm, mixing

arm

26,27 are middle arm near being in the mid point of shaft 2, two groups of mixing arms on axial arranging all from holding arm to middle arm, arranging of direction of rotation all from holding arm to middle arm, the top of each mixing arm all is fixed with stirring vane 11, as shown in Figure 4, limit arm 23 lags behind the mixing arm end arm 24 of homonymy on direction of rotation; And limit arm 30 lags behind the mixing arm end arm 29 of homonymy on direction of rotation.

Above-mentioned limit arm 23 lags behind mixing arm end arm 24 on direction of rotation, it falls behind angle is the α angle shown in Fig. 4, limit arm 30 lags behind mixing arm end arm 29 on direction of rotation, it falls behind angle is the α ' angle shown in Fig. 4, the utility model is in reality is made, and α and α ' angle are got 30 °, 60 °, 90 °, 120 ° can both play the effect that reduces limit arm working resistance, cuts down the consumption of energy.

Claims

1, a kind of forced concrete mixer, comprise mixing drum, be equipped with shaft in the mixing drum, respectively be equipped with one on the shaft at the end walls place of mixing drum and be used to clear up the limit arm of end wall surface, the both sides of the mid point on the shaft between the arm of both sides respectively are equipped with one group of spiral mixing arm of arranging, two groups of mixing arms on axial arranging all from holding arm to middle arm, arranging of direction of rotation all from holding arm to middle arm, the top of each mixing arm all is fixed with stirring vane, it is characterized in that: the both sides arm lags behind the mixing arm end arm of homonymy respectively on the arranging of direction of rotation.

2, mixer according to claim 1 is characterized in that: the backward angle of described limit arm and the mixing arm end arm of corresponding homonymy is between 0 °～180 °.

3, mixer according to claim 2 is characterized in that: the backward angle of described limit arm and the mixing arm end arm of corresponding homonymy is between 0 °～90 °.

4, mixer according to claim 1 is characterized in that: described limit arm be scrape tabular.