GB2053706A - Concrete mixer - Google Patents
Concrete mixer Download PDFInfo
- Publication number
- GB2053706A GB2053706A GB8019375A GB8019375A GB2053706A GB 2053706 A GB2053706 A GB 2053706A GB 8019375 A GB8019375 A GB 8019375A GB 8019375 A GB8019375 A GB 8019375A GB 2053706 A GB2053706 A GB 2053706A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rotor
- transmission
- units
- reducing
- shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
- B28C5/10—Mixing in containers not actuated to effect the mixing
- B28C5/12—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers
- B28C5/16—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers the stirrers having motion about a vertical or steeply inclined axis
- B28C5/163—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers the stirrers having motion about a vertical or steeply inclined axis in annularly-shaped containers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/30—Driving arrangements; Transmissions; Couplings; Brakes
- B01F35/32—Driving arrangements
- B01F35/323—Driving arrangements for vertical stirrer shafts
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
- Accessories For Mixers (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
Abstract
A horizontally disposed mixing bowl (1) contains a rotor (3) which is mounted by a shaft (4) in a bearing (5). The rotor (3) is driven by two motors (6) through respective couplings (7) and speed-reducing transmission units (8A, 8B) of which one, (8A), is coupled directly to the rotor (3) and the other (8B), to the shaft (4). The units (8A, 8B) are connected to the frame (2) by torsion bars (9) to prevent bending of the shaft (4). <IMAGE>
Description
SPECIFICATION
Concrete mixer
The present utility model relates to a concrete mixer of the type comprising a horizontal mixing bowl within which a rotor acts, and more specifically to the power transmission assemblies for rotating the rotor.
Concrete mixers of the above-indicated type are well known, which differ from each other by virtue of the arrangement and the number of the power sources and the associated transmission means for rotating the rotor.
The arrangements which have normally been adopted hitherto can be classified as two basic types. The first in which a single power source, of substantial size, provides for entrainment of the rotor and is connected directly to the rotary shaft thereof. In the second type, two power sources which are disposed laterally of the mixing bowl are connected to the shaft of the rotor by means of a series of grears.
Both these arrangements suffer from disadvantages insofar as, taking into account the high forces involved, a single power source gives rise to substantial problems in regard to the amount of space occupied, by virtue of its large dimensions, while the series of gears which are required to provide for the connection of two power sources gives rise to high costs, bearing in mind the fact that the gears are intended for a specific use and thus cannot be commercially obtained from those which are mass produced.
However, the need has been felt to provide an arrangement in respect of the power sources and the associated transmission means, such as to combine the advantages which derive from using two power sources of more reduced dimensions, with the advantages of direct connection which characterises the arrangements which are provided with a single power source.
The present utility model fully meets this need, by providing a concrete mixer comprising a mixing bowl and a rotor acting therein, characterised in that said rotor is actuated for rotary movement by two motor-transmission-reducing units connected to the rotor on the opposite ends of the axis thereof. In particular, one of the units is connected directly to the rotor at one side while the other acts at the other side on the free projecting end of the shaft of the rotor.
Another characteristic of the present utility model is that the two motor-transmission-reducing units are identical units which are mass produced.
The innovation will now be described in greater detail with reference to the accompanying drawing which shows an embodiment which is preferred at the present time, purely by way of example.
The drawing shows a diagrammatic front view in partial cross-section of the mixer according to the present model.
The mixer comprises a mixing bowl 1 which is supported by a frame 2 and within which there acts a rotor 3 which is capable of mixing the concrete mixture, in known manner.
The rotor 3 comprises a rotary shaft 4 which projects downwardly from the centre thereof and which rotates in a carrier 5 therefor, provided in the frame 2.
According to the present model, the rotor 3 is actuated for rotary movement by two motortransmission-reducing units, each comprising an electric motor 6 which is connected by way of a coupling means 7 to a transmission-reducing group 8A and 8B. The transmission-reducing group 8A which is disposed above the rotor 3 is connected directly thereto. The transmission-reducing group 8B however, which is disposed below the rotor and thus underneath the mixing bowl is connected to the free end of the shaft 4 of the rotor.
There are then provided two torsion bars 9 which are connected on the one hand to the reducing units 8A and 8B and on the other hand to the frame 2.
The mode of operation of the apparatus, the remainder of which is already known, is entirely evident from the accompanying drawing. In fact, the two motor-transmission-reducing groups 6, 7 and 8 which are disposed opposite each other provide for entraining the rotor 3 in rotation, which thus causes mixing of the constituents of the concrete which are introduced into the bowl 1 by means of the loading orifice 10. The couple occurring on the coupling means 7, which would be applied as a bending moment to the shaft 4 of the rotor 3, is however applied to the frame 2 by way of the two torsion bars 9.
The above-described arrangement can be embodied using motor-transmission-reducing units of standardised dimensions which are thus mass produced, with a substantial reduction in costs, while precisely by virtue of their compact dimensions, the problems relating to installation of such units are drastically reduced.
It will be apparent that equal utility can be achieved when making modifications in the abovedescribed arrangement, for example by disposing the two motors 6 on opposite sides with respect to a vertical plane passing through the axis of the rotor.
1. A concrete mixer comprising a mixing bowl and a rotor acting therein, characterised in that said rotor is actuated for rotary movement by means of two motor-transmission-reducing units which are connected to the rotor on the oppositely disposed ends of the axis thereof.
2. A mixer as set forth in 1 wherein one of the motor-transmission-reducing units is connected directly to the rotor while the other is connected to the shaft for supporting and rotating the rotor.
3. A mixer as set forth in 1 wherein the motortransmission-reducing units are identical massproduced units.
**WARNING** end of DESC field may overlap start of CLMS **.
Claims (3)
1. A concrete mixer comprising a mixing bowl and a rotor acting therein, characterised in that said rotor is actuated for rotary movement by means of two motor-transmission-reducing units which are connected to the rotor on the oppositely disposed ends of the axis thereof.
2. A mixer as set forth in 1 wherein one of the motor-transmission-reducing units is connected directly to the rotor while the other is connected to the shaft for supporting and rotating the rotor.
3. A mixer as set forth in 1 wherein the motortransmission-reducing units are identical massproduced units.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT7921816U IT7921816V0 (en) | 1979-06-13 | 1979-06-13 | CONCRETE MIXER HAVING THE ROTOR DRIVEN DIRECTLY BY TWO OPPOSING POWER SOURCES. |
Publications (2)
Publication Number | Publication Date |
---|---|
GB2053706A true GB2053706A (en) | 1981-02-11 |
GB2053706B GB2053706B (en) | 1983-03-02 |
Family
ID=11187254
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8019375A Expired GB2053706B (en) | 1979-06-13 | 1980-06-13 | Concrete mixer |
Country Status (4)
Country | Link |
---|---|
DE (1) | DE8014774U1 (en) |
FR (1) | FR2459114A3 (en) |
GB (1) | GB2053706B (en) |
IT (1) | IT7921816V0 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0063257A2 (en) * | 1981-04-10 | 1982-10-27 | Walter Stahl | Mixer with annular vat |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104191521A (en) * | 2014-08-18 | 2014-12-10 | 张家港保税区多元机械设备制造有限公司 | Rotary stirring storage tank |
-
1979
- 1979-06-13 IT IT7921816U patent/IT7921816V0/en unknown
-
1980
- 1980-06-03 DE DE19808014774U patent/DE8014774U1/en not_active Expired
- 1980-06-11 FR FR8012963A patent/FR2459114A3/en active Granted
- 1980-06-13 GB GB8019375A patent/GB2053706B/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0063257A2 (en) * | 1981-04-10 | 1982-10-27 | Walter Stahl | Mixer with annular vat |
EP0063257A3 (en) * | 1981-04-10 | 1984-05-30 | Walter Stahl | Mixer with annular vat |
Also Published As
Publication number | Publication date |
---|---|
FR2459114A3 (en) | 1981-01-09 |
DE8014774U1 (en) | 1980-11-13 |
GB2053706B (en) | 1983-03-02 |
FR2459114B3 (en) | 1981-06-26 |
IT7921816V0 (en) | 1979-06-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4453831A (en) | Mixer with a fixed drum | |
CA2147586A1 (en) | Orbital shaking device | |
GB2053706A (en) | Concrete mixer | |
CN208714244U (en) | A kind of hot melt adhesive kneader convenient for discharging | |
CN107281966A (en) | A kind of high-efficiency feed mixer with shock-absorbing function | |
CN216756169U (en) | Double-shaft paddle high-efficiency mixer for feed | |
CN213376308U (en) | Cantilever type agitating unit of misce bene | |
CN215028048U (en) | Blendor convenient to equipment is clean | |
CN215463809U (en) | Piling-free two-dimensional motion mixer | |
CN112169619A (en) | Pig feed mixing agitating unit | |
CN216063017U (en) | Digital display stirring device with bipolar high-precision stirring mechanism | |
CN217093046U (en) | Vertical automatic mixer of cooked food processing | |
CN220446873U (en) | Silica gel internal mixer | |
CN218314531U (en) | A compounding device for polyurethane preparation | |
CN105457552B (en) | Oil press stirs speed changing structure | |
CN218965796U (en) | Full-automatic batching weighing device of mixer | |
CN214389856U (en) | Drum-type mixer | |
CN205435641U (en) | Oil press stirring variable speed structure | |
CN218609033U (en) | Stirring device for metallurgy | |
CN217392266U (en) | Lithium iron phosphate precursor compounding device | |
CN214598721U (en) | Building raw materials turbine formula mixer | |
CN111249980A (en) | Take crushing function's chemical fertilizer mixer | |
CN220610023U (en) | Small-size centrifuge tube mixing device | |
CN217449878U (en) | Multidirectional two-dimensional motion mixer | |
EP0613717A3 (en) | Rotating stirring device. |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |