CN211868199U - Concrete proportioning machine - Google Patents

Abstract

The utility model relates to a concrete batching machine, which relates to the technical field of concrete equipment and comprises a frame, wherein two storage hoppers and a weighing hopper arranged below the storage hoppers are arranged on the frame, a pre-mixing hopper positioned between the storage hoppers and the weighing hopper is arranged on the frame, a bottom shaft of the pre-mixing hopper is hinged with a bottom plate, and the pre-mixing hopper is provided with an opening and closing device used for driving the bottom plate to rotate around a hinged shaft; two partition plates are arranged on the inner side wall of the premixing hopper along the radial direction of the premixing hopper, and the two partition plates are symmetrically distributed on two sides of the axis of the premixing hopper; a stirring shaft is arranged in the premixing hopper, a plurality of stirring paddles are arranged on the peripheral side wall of the stirring shaft and are symmetrically distributed on two sides of the axis of the stirring shaft, and a driving piece for driving the stirring shaft to rotate is arranged on the rack; two baffles are provided with a plurality of through grooves for the stirring paddles to pass through along the radial direction of the premixing hopper. The utility model discloses have the possibility that reduces aggregate layering to make the aggregate can the misce bene in follow-up course of working's advantage.

Description

Concrete proportioning machine

Technical Field

The utility model belongs to the technical field of the technique of concrete equipment and specifically relates to a concrete proportioning machine is related to.

Background

Concrete proportioning machine also is called proportioning machine, grit automatic blending machine, is a kind of automation equipment that is used for the ration of multiple material such as grit to deliver, mainly is applied to the concrete construction trade to replace modes such as artifical platform balance or volume measurement, the concrete proportioning machine of present concrete mixing plant has very high measurement accuracy and delivery efficiency.

The prior Chinese patent with the publication number of CN207643405U discloses a concrete batching machine, which comprises a frame, a plurality of storage hoppers arranged in a straight line and weighing hoppers arranged below the storage hoppers, a flat belt conveyor for conveying aggregate in the hopper to the weighing hopper is arranged below the storage hopper, a driving roller is arranged in the flat belt conveyor, one end of the driving roll is connected with a driving motor in a transmission way, a mud scraping device used for cleaning residual aggregate adhered on the flat belt conveyor is arranged below the driving roll of the flat belt conveyor, the mud scraping device comprises a rotating shaft, a rotating body and a mud scraping plate, wherein the rotating shaft is positioned below the driving roller and is in transmission connection with the driving roller, the rotating body is fixedly arranged on the rotating shaft, the mud scraping plate is arranged on the rotating shaft, the circumferential side wall of the rotating body is axially provided with a mounting groove for mounting the mud scraper, and the mud scraper is movably mounted in the mounting groove. Concrete proportioning machine in the above-mentioned patent that discloses has solved and has been stained with the problem that is stained with debris such as silt on the belt of flat belt machine, prevents the diameter grow of the bearing roller of flat belt machine, causes the belt atress uneven, makes the belt take place the off tracking, causes the aggregate to leak the material in the transportation.

The above prior art solutions have the following drawbacks: different aggregates directly fall into the weighing hopper through the storage hopper, and the phenomenon of aggregate layered accumulation easily occurs in the weighing hopper, so that the stirring is not uniform enough in the subsequent processing, and the quality of concrete is influenced.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, one of the purposes of the utility model is to provide a concrete proportioning machine, it has the possibility that reduces aggregate layering and piles up to make the aggregate can the misce bene advantage in follow-up course of working.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

a concrete batching machine comprises a rack, wherein two storage hoppers which are arranged in a straight line and a weighing hopper arranged below the storage hoppers are arranged on the rack, a pre-mixing hopper which is positioned between the storage hoppers and the weighing hopper is arranged on the rack, a stirring device is arranged in the pre-mixing hopper, a bottom plate is hinged to a bottom shaft of the pre-mixing hopper, and the pre-mixing hopper is provided with an opening and closing device which is used for driving the bottom plate to rotate around a hinged shaft;

a flat belt conveyor for conveying the aggregate in the storage hopper to the pre-mixing hopper is arranged below the storage hopper;

the inner side wall of the premixing hopper is provided with two partition plates along the radial direction of the premixing hopper, the two partition plates are symmetrically distributed on two sides of the axis of the premixing hopper, and the diameter of the premixing hopper where the two partition plates are located is parallel to the central line of the flat belt conveyor in the length direction;

the stirring device comprises a stirring shaft, the axis of the stirring shaft is parallel to the axis of the premixing hopper and the stirring shaft is positioned between the two partition plates, a plurality of stirring paddles are arranged on the peripheral side wall of the stirring shaft and symmetrically distributed on two sides of the axis of the stirring shaft, and a driving piece for driving the stirring shaft to rotate is arranged on the rack;

the two partition plates are both provided with a plurality of through grooves for the stirring paddles to pass through;

a material conveying device is arranged at the bottom end of the weighing hopper; and in the initial state, the stirring paddles are respectively positioned in the through grooves.

Through adopting above-mentioned technical scheme, during initial condition, the epaxial stirring rake of stirring is located a plurality of logical inslots respectively for aggregate in the different storage hoppers falls down the both sides of baffle respectively. The driving piece is started to drive the stirring shaft to rotate, so that the aggregates in the premixing hopper are uniformly mixed, the possibility of layered accumulation of the aggregates is reduced, the aggregates can be sufficiently and uniformly mixed in subsequent processing, and the quality of concrete is ensured.

The present invention may be further configured in a preferred embodiment as: an abdicating gap for the stirring paddle to pass is formed between the bottom end of the clapboard and the bottom plate.

Through adopting above-mentioned technical scheme, be formed with the clearance of stepping down between the bottom of baffle and the bottom plate, can supply the stirring rake to pass to make the stirring rake can stir the aggregate of preliminary mixing fill bottom, make the aggregate intensive mixing in the preliminary mixing fill, further reduced aggregate layering pile's possibility.

The present invention may be further configured in a preferred embodiment as: the stirring paddle is in the inclined arrangement.

By adopting the technical scheme, the impact force of aggregate applied to the stirring paddle by the stirring paddle during stirring can be reduced, the loss of the stirring paddle is reduced, and the service life of the stirring paddle is prolonged.

The present invention may be further configured in a preferred embodiment as: the driving piece is a first motor located above the premixing hopper, and the driving end of the first motor is connected to the end of the stirring shaft.

Through adopting above-mentioned technical scheme, utilize first motor drive (mixing) shaft to rotate to make the aggregate misce bene in the premixing fill, reduce aggregate layering pile's possibility.

The present invention may be further configured in a preferred embodiment as: the stirring device is equipped with two, and two (mixing) shaft symmetric distribution are in the both sides of premixing fill axis, and the epaxial stirring rake of two stirring is crisscross the setting each other.

Through adopting above-mentioned technical scheme, two (mixing) shafts rotate simultaneously, can accelerate the speed that aggregate misce bene in the premixing fill, when reducing aggregate layering accumulational possibility, can improve work efficiency again.

The present invention may be further configured in a preferred embodiment as: the opening and closing device comprises an air cylinder hinged with the outer side wall shaft of the premixing hopper, and the end part shaft of the piston rod of the air cylinder is hinged with the bottom plate.

Through adopting above-mentioned technical scheme, utilize the cylinder drive bottom plate to rotate around the articulated shaft to reach the purpose of opening and shutting the bottom plate, and then prevent that the (mixing) shaft from having the aggregate to spill when rotating, also can make the aggregate fall in the weighing hopper.

The present invention may be further configured in a preferred embodiment as: the conveying device comprises a conveying pipe communicated with the weighing hopper, a rotating shaft is coaxially arranged in the conveying pipe, a helical blade is arranged on the outer side wall of the rotating shaft, and the conveying pipe is connected with a driving assembly used for driving the rotating shaft to rotate.

Through adopting above-mentioned technical scheme, the aggregate falls in the weighing hopper, and the axis of rotation is at the pivoted in-process, and helical blade can promote the aggregate and move towards the mouth of pipe of conveying pipeline, simultaneously, can make the aggregate further misce bene again, further reduces aggregate layering accumulational possibility.

The present invention may be further configured in a preferred embodiment as: the driving assembly comprises a second motor, and the driving end of the second motor is connected to the end part of the rotating shaft.

Through adopting above-mentioned technical scheme, utilize the second motor drive axis of rotation to make helical blade promote the aggregate and move towards the mouth of pipe of conveying pipeline, and then reach the purpose of defeated material.

To sum up, the utility model discloses a following at least one useful technological effect:

1. the premixing hopper is arranged between the storage hopper and the weighing hopper, so that the aggregates can be uniformly mixed in advance, the possibility of layered accumulation of the aggregates is reduced, the aggregates are sufficiently and uniformly mixed in the subsequent processing process, and the quality of concrete is ensured;

2. the aggregates in different storage hoppers fall down to the two sides of the partition plate, so that the aggregates are uniformly mixed under the stirring of the stirring paddle, and the possibility of layered accumulation of the aggregates is reduced;

3. through setting up axis of rotation and helical blade in the bottom of weighing hopper, can further stir the aggregate for intensive mixing is even, thereby has further reduced aggregate layered stacking's possibility.

Drawings

FIG. 1 is a schematic view showing the overall construction of a concrete batching machine according to example 1;

FIG. 2 is a schematic view showing the overall construction of a pre-mixing hopper in example 1;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is a plan view of the premix bucket in example 1;

FIG. 5 is a sectional view of a pre-mixing hopper in example 1;

FIG. 6 is an exploded view of the premix bucket in example 1;

FIG. 7 is a sectional view of a feed conveyor pipe in example 1;

FIG. 8 is a sectional view of a pre-mixing hopper in embodiment 2;

FIG. 9 is an exploded view of the premix bucket in example 2.

In the figure, 1, a frame; 11. a vertical rod; 12. a cross bar; 13. a reinforcing bar; 2. a storage hopper; 21. a belt flattening machine; 22. a drive motor; 3. a premixing hopper; 30. a hinge; 31. a base plate; 32. a first transverse plate; 321. a first vertical plate; 33. a second transverse plate; 331. a second vertical plate; 34. a cylinder; 341. a first hinge shaft; 342. a second hinge shaft; 35. a partition plate; 351. a through groove; 352. a abdication gap; 4. a stirring shaft; 41. a stirring paddle; 42. a first motor; 5. weighing a hopper; 6. a delivery pipe; 61. a rotating shaft; 611. a plugging plate; 62. a helical blade; 63. a second motor.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example 1:

referring to fig. 1, for the utility model discloses a concrete proportioning machine, including frame 1, frame 1 includes four montants 11 of vertical setting and a plurality of horizontal poles 12 of transverse connection in montant 11, and a plurality of horizontal poles 12 are parallel to each other. The frame 1 is provided with two storage hoppers 2 in an inverted prismatic table shape, the two storage hoppers 2 are arranged in a row along the length direction of the cross rod 12, and the frame 1 is provided with a reinforcing rod 13 for fixing the storage hoppers 2. The frame 1 is provided with a premixing hopper 3 positioned below the storage hopper 2, and the premixing hopper 3 is in a hollow cylindrical shape. A flat belt conveyor 21 is arranged below the two storage hoppers 2, a driving motor 22 for driving the flat belt conveyor 21 to rotate is arranged on the frame 1, and the aggregate in the storage hoppers 2 can be conveyed into the pre-mixing hopper 3 by using the flat belt conveyor 21.

Referring to fig. 2, the bottom end of the pre-mixing hopper 3 is pivotally connected to a circular bottom plate 31 by a hinge 30. The outer peripheral side wall shaft of the pre-mixing bucket 3 is hinged with two air cylinders 34, and with reference to fig. 4, the central line of the connecting line of the two air cylinders 34 is coincident with the diameter of the pre-mixing bucket 3, and the hinge 30 is positioned on the central line of the connecting line of the two air cylinders 34. Referring to fig. 3, two first connecting members for connecting the ends of the cylinders 34 are disposed on the outer peripheral sidewall of the pre-mixing hopper 3, each first connecting member includes a first transverse plate 32 disposed on the outer peripheral sidewall of the pre-mixing hopper 3, and two first vertical plates 321 parallel to each other are disposed on the side of the first transverse plate 32 facing the bottom plate 31. The end of the cylinder 34 is provided with a first hinge shaft 341, and two ends of the first hinge shaft 341 are respectively and rotatably connected to the two first vertical plates 321.

Referring to fig. 3, two second connecting members for connecting the ends of the piston rods of the cylinders 34 are provided on the outer circumferential side wall of the base plate 31. The second connecting member includes a second horizontal plate 33 disposed on the outer peripheral sidewall of the bottom plate 31, and two second vertical plates 331 parallel to each other are disposed on the side of the second horizontal plate 33 facing the first horizontal plate 32. The end of the piston rod of the cylinder 34 is provided with a second hinge shaft 342, and two ends of the second hinge shaft 342 are respectively and rotatably connected to the two second vertical plates 331.

Referring to fig. 5, a cylindrical stirring shaft 4 is coaxially arranged in the premixing hopper 3, a plurality of stirring paddles 41 which are square are arranged on the peripheral side wall of the stirring shaft 4 along the radial direction of the stirring shaft 4, and the stirring paddles 41 are symmetrically distributed on two sides of the axis of the stirring shaft 4. Referring to fig. 6, an included angle between the paddle 41 and the vertical plane is smaller than 90 degrees, so that an impact force applied to the paddle 41 by the aggregate when the paddle 41 stirs the aggregate can be reduced, loss of the paddle 41 is reduced, and the service life of the paddle 41 is prolonged. Referring to fig. 1, a first motor 42 is disposed above the pre-mixing hopper 3, one end of the stirring shaft 4 extends out of the pre-mixing hopper 3 and is connected to the first motor 42, and when the first motor 42 is started, the stirring shaft 4 can be driven to rotate, so that the aggregates in the pre-mixing hopper 3 are uniformly mixed.

Referring to fig. 6, two square partition plates 35 are arranged on the inner side wall of the pre-mixing hopper 3 along the radial direction of the pre-mixing hopper 3, the two partition plates 35 are symmetrically distributed on two sides of the axis of the pre-mixing hopper 3, and the diameter of the pre-mixing hopper 3 where the two partition plates 35 are located is parallel to the central line of the flat belt conveyor 21 in the length direction. Referring to fig. 5, the stirring shaft 4 is located between the two partition plates 35, and the sum of the lengths of the two partition plates 35 and the diameter of the stirring shaft 4 is slightly smaller than the diameter of the pre-mixing hopper 3, so that the possibility that the stirring shaft 4 and the partition plates 35 are worn due to friction between the peripheral side wall of the stirring shaft 4 and the partition plates 35 when the stirring shaft 4 rotates is reduced, and meanwhile, aggregates in the two storage hoppers 2 can fall to the two sides of the partition plates 35 respectively. Each partition 35 is provided with a plurality of through slots 351 for the stirring paddles 41 to pass through along the radial direction of the premixing hopper 3. An abdicating gap 352 for the stirring paddle 41 to pass is reserved between the bottom end of each partition plate 35 and the bottom plate 31, so that the stirring paddle 41 can stir the aggregates at the bottom of the premixing hopper 3 conveniently, and the aggregates can be uniformly mixed.

Referring to fig. 1, a weighing hopper 5 located below a premixing hopper 3 is arranged on a frame 1, a hollow cylindrical conveying pipe 6 is communicated with the bottom end of the weighing hopper 5, and the conveying pipe 6 is arranged along the length direction of a cross rod 12. Referring to fig. 7, a cylindrical rotating shaft 61 is coaxially disposed in the feeding pipe 6, and a helical blade 62 is disposed on the outer peripheral side wall of the rotating shaft 61. The rotating shaft 61 is sleeved with a round plugging plate 611 for plugging one end of the material conveying pipe 6. One end of the rotating shaft 61 penetrates the blocking plate 611 and is connected with a second motor 63. The second motor 63 is started to drive the rotating shaft 61 to rotate, so as to drive the helical blade 62 to rotate, and further, the helical blade 62 is used for pushing the aggregate to move towards the pipe orifice of the material conveying pipe 6, so as to achieve the purpose of material conveying.

The implementation principle of the embodiment is as follows: in the initial state, the stirring paddles 41 are respectively located in the through grooves 351, the flat belt conveyor 21 is started to convey the aggregates in the storage hoppers 2 to the pre-mixing hopper 3, and the aggregates in the two storage hoppers 2 respectively fall to the two sides of the partition plate 35. The first motor 42 is started to drive the stirring shaft 4 to rotate, so that the aggregates in the premixing hopper 3 are stirred by the stirring paddle 41, and the aggregates are uniformly mixed. After the aggregate falls into the weighing hopper 5, the second motor 63 is started, and the aggregate is further stirred while being conveyed by the helical blade 62, so that the aggregate is further uniformly mixed, the possibility of layered accumulation of the aggregate is further reduced, and the quality of concrete is ensured. Compared with the prior art, the embodiment can effectively reduce the possibility of layering and stacking of the aggregates, so that the aggregates can be fully and uniformly mixed in the subsequent processing, and the quality of concrete is ensured.

Example 2:

a concrete batching machine, referring to fig. 8 and 9, based on embodiment 1, the difference between this embodiment and embodiment 1 is: two stirring shafts 4 are arranged in the premixing hopper 3, the two stirring shafts 4 are symmetrically distributed on two sides of the axis of the premixing hopper 3, and stirring paddles 41 on the two stirring shafts 4 are arranged in a mutually staggered mode. Two first motors 42 are arranged on the frame 1, the two first motors 42 are respectively connected to the end parts of the two stirring shafts 4, and the rotation directions of the two stirring shafts 4 are the same. The two stirring shafts 4 are used for simultaneously stirring the aggregates in the premixing hopper 3, so that the aggregates in the premixing hopper 3 can be quickly and uniformly mixed, and the working efficiency is improved.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (8)

1. The utility model provides a concrete proportioning machine, includes frame (1), be equipped with in frame (1) and be two storage hoppers (2) that the word was arranged and locate storage hopper (2) below scale hopper (5), its characterized in that: a premixing hopper (3) positioned between the storage hopper (2) and the weighing hopper (5) is arranged on the rack (1), a stirring device is arranged in the premixing hopper (3), a bottom shaft of the premixing hopper (3) is hinged with a bottom plate (31), and the premixing hopper (3) is provided with an opening and closing device for driving the bottom plate (31) to rotate around a hinged shaft;

a flat belt conveyor (21) for conveying the aggregate in the storage hopper (2) to the pre-mixing hopper (3) is arranged below the storage hopper (2);

the inner side wall of the premixing hopper (3) is provided with two partition plates (35) along the radial direction of the premixing hopper (3), the two partition plates (35) are symmetrically distributed on two sides of the axis of the premixing hopper (3), and the diameter of the premixing hopper (3) where the two partition plates (35) are located is parallel to the central line of the flat belt conveyor (21) in the length direction;

the stirring device comprises a stirring shaft (4) with an axis parallel to the axis of the premixing hopper (3) and positioned between the two partition plates (35), a plurality of stirring paddles (41) are arranged on the peripheral side wall of the stirring shaft (4), the stirring paddles (41) are symmetrically distributed on two sides of the axis of the stirring shaft (4), and a driving piece for driving the stirring shaft (4) to rotate is arranged on the rack (1);

the two partition plates (35) are provided with a plurality of through grooves (351) for the stirring paddles (41) to pass through;

a material conveying device is arranged at the bottom end of the weighing hopper (5); in the initial state, the stirring paddles (41) are respectively positioned in the through grooves (351).

2. The concrete batching machine according to claim 1, characterized in that: an abdicating gap (352) for the stirring paddle (41) to pass through is formed between the bottom end of the clapboard (35) and the bottom plate (31).

3. The concrete batching machine according to claim 1, characterized in that: the stirring paddle (41) is obliquely arranged.

4. The concrete batching machine according to claim 1, characterized in that: the driving piece is a first motor (42) positioned above the premixing hopper (3), and the driving end of the first motor (42) is connected to the end part of the stirring shaft (4).

5. The concrete batching machine according to claim 1, characterized in that: the stirring devices are two, the two stirring shafts (4) are symmetrically distributed on two sides of the axis of the premixing hopper (3), and the stirring paddles (41) on the two stirring shafts (4) are arranged in a mutually staggered mode.

6. The concrete batching machine according to claim 1, characterized in that: the opening and closing device comprises an air cylinder (34) hinged with the outer side wall shaft of the premixing hopper (3), and the end part shaft of the piston rod of the air cylinder (34) is hinged with the bottom plate (31).

7. The concrete batching machine according to claim 1, characterized in that: the conveying device comprises a conveying pipe (6) communicated with a weighing hopper (5), a rotating shaft (61) is coaxially arranged in the conveying pipe (6), a spiral blade (62) is arranged on the outer side wall of the rotating shaft (61), and the conveying pipe (6) is connected with a driving assembly used for driving the rotating shaft (61) to rotate.

8. The concrete dosing machine of claim 7, wherein: the driving assembly comprises a second motor (63), and the driving end of the second motor (63) is connected to the end part of the rotating shaft (61).

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