The invention relates to a charging apparatus which is intended for bulk material and has a charging bin (20), which can be pivoted on a mixing vessel (12) between a receiving position and a discharging position for the bulk material, the discharging position opening out into the mixing vessel (12) from above, and also has a scraper bucket (22), which can be moved in the direction of the charging bin (20), preferably by means of a pulling cable (26), thereby receiving bulk material, and in the receiving position can be emptied into the charging bin (20). According to the invention, it is proposed that the charging bin (20) should have a holding mechanism (28) for the scraper bucket (22), wherein the scraper bucket (22), which can be brought into engagement with the holding mechanism (28), is prevented from falling when the charging bin (20) is being pivoted.
The invention relates to a device (1000) for mixing and conveying high-viscosity materials, having the following: - a main grid voltage connection (10), - a main electric motor (20) which is electrically connected to the main grid voltage connection (10), - a main hydraulic pump (30), said main hydraulic pump (30) being driven by means of the main electric motor (20) and supplying a mixer hydraulic circuit (40) and a compressed air hydraulic circuit (50), - a hydraulic mixer drive (60) which is supplied from the mixer hydraulic circuit (40), said hydraulic mixer drive (60) being provided for mixing the high-viscosity material, - a hydraulic compressor drive (70) which is supplied from the compressed air hydraulic circuit (50), said hydraulic compressor drive (70) being provided for generating compressed air, - an additional grid voltage connection (80), - an additional hydraulic system (90) which has the following: - an additional electric motor (100) which is electrically connected to the additional grid voltage connection (80) and which can be operated independently of the main electric motor (20), and - an additional hydraulic pump (110), said additional hydraulic pump (110) being driven by means of the additional electric motor (100), and - a controller (120) which is designed to actuate the additional hydraulic system (90) depending on a compressed air requirement such that in addition to the main hydraulic pump (30), the additional hydraulic pump (110) also supplies the compressed air hydraulic circuit (50).
F04B 15/02 - Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being viscous or non-homogeneous
F04B 17/03 - Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
The invention relates to a mixing and delivery unit (10), in particular for mortar or concrete as material to be delivered, having a supporting frame (12), having a drive motor (14) which is preferably in the form of a diesel engine and which has coupled to it firstly a mixing mechanism of a mixing vessel fixed with respect to the supporting frame and secondly a compressor (16) for generating delivery air, and having a hydraulic assembly (30) for operating further functional units such as feeders or scrapers. To make it possible to realize a setup of the unit (10) with the hydraulic assembly (30) which is as inexpensive and easy to realize as possible, it is provided according to the invention that, between the drive motor (14) and the compressor (16), there is arranged a connecting housing (18) which accommodates an elastic coupling (22, 24), wherein the coupling has a coupling shaft (26) which transmits a force from a crankshaft of the drive motor (14) to a drive shaft of the compressor (16), and that the hydraulic assembly (30) is arranged on a wall of the connecting housing (18) and is driven by the coupling shaft (26) via a traction mechanism drive (28, 32, 34).
The invention relates to a mixing and conveying device (10), in particular for mortar or concrete as a material to be conveyed, comprising a supporting frame (18), a drive motor (12), which is preferably designed as a diesel engine and to which a mixer of a frame-fixed mixing vessel (16) and a compressor (14) for generating conveying air are coupled, wherein a transmission (20) for reducing the driving rotational speed for the mixer is arranged between the drive motor (12) and the mixer, which transmission is driven by a traction-means drive (24, 26, 28), and a tensioning device (30) for a traction means (28) of the traction-means drive is arranged on the supporting frame (18). According to the invention, in order to create a traction-means drive having a tensioning device for the transmission (20) that has a simple design and thus is economical, the transmission (20) is connected on the output side to a mixer drive shaft and is arranged in such a way that the transmission can be pivoted about an axis of rotation (22) of the mixer drive shaft and the tensioning device (30) is articulated to the transmission (20) at a distance from the axis of rotation (22) of the mixer drive shaft, wherein the traction-means tension can be adjusted by pivoting the transmission (20) about the axis of rotation (22) of the mixer drive shaft.
B28C 5/08 - 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
F16H 7/08 - Means for varying tension of belts, ropes, or chains
F16H 7/14 - Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of a driving or driven pulley
The invention relates to a mixing and conveying device which essentially consists of a chassis (10), which has a tow bar (14) pointing in a towing direction (12), and a plurality of functional units from the group comprising a mixing vessel (18) having a rotating mixer (20), a cooler (24), a cooling-air fan (26), and a drive motor (16). The drive motor (16) is designed as an internal combustion engine, preferably as a diesel engine, which has a crankshaft (38). Furthermore, a housing (32) for accommodating the functional units is provided. The housing is fixed with respect to the chassis, cooling air (48) can flow through the housing, and the housing has an air inlet (28) and an air outlet (30) for the cooling air (48). The mixing vessel (18) having the mixer (20) is arranged on the side of the chassis (10) opposite the side of the tow bar (14). In order to achieve optimal cooling for a given cooling-air flow, the air inlet is arranged in front of the drive motor (16) and the compressor (22) in the towing direction (12), on the side of the tow bar (14). The cooler (24) and the cooling-air fan (26) are located behind the drive motor (16) in the compressor (22) in the towing direction (12). The air outlet (30) is arranged between the cooler (24) and the mixing vessel (18) at a distance above the mixing vessel (18), the air outlet pointing upward. It is especially advantageous if the cooling-air fan (26) has a fan shaft (54) that is arranged at a lateral offset and height offset from the cooler-side end (36) of the crankshaft (38), which fan shaft can be driven by means of a second belt drive (56) coupled to the cooler-side end (36) of the crankshaft (38).
The invention relates to an eccentric screw pump for conveying high-viscosity materials, in particular liquid mortar. The eccentric screw pump according to the invention comprises a stator (12) made of an elastomer and having a pump hollow chamber (14) formed in the manner of a double- or multi-pitch thread (20) and a motorized rotor (16) having radial eccentricity (e) and reaching through the pump hollow chamber (14) and formed in the manner of a pitch thread (22). The pump hollow chamber (14) of the stator (12) has one thread more than the rotor (16). In order to obtain a good mix having a high air pore ratio, the pump hollow space (14) opens on the pressure side end of the stator (12) in a mixing chamber (28) in which a mixing element (30) which is connected to the rotor (16) in a rotationally fixed manner engages.
F04C 2/107 - Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth
F04C 15/06 - Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
B01F 7/00 - Mixers with rotary stirring devices in fixed receptacles; Kneaders
B28C 5/12 - Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials
Construction machines; mobile and stationary thick matter
conveyors; plastering machines, mortar machines, mechanical
mixers and conveyors for thick matter; spare parts and
auxiliary parts for the aforesaid goods.
Construction machines; mobile and stationary thick matter conveyors; plastering machines, mortar machines, mechanical mixers and conveyors for thick matter; spare parts and auxiliary parts for the aforesaid goods.
