SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an improve controlling means of concrete mixing plant aggregate batching precision, it is comparatively simple to effectively solve the whereabouts mode to weigh the not accurate problem inadequately.
In order to solve the technical problem, the utility model discloses a realize through following technical scheme:
comprises a frame body; the aggregate bin is fixed on the frame body; the charging opening is arranged on the upper end surface of the aggregate bin; the discharge opening is formed in the lower end face of the aggregate bin; the aggregate bin is also provided with a sealing device for controlling the sealing of the discharge opening, the sealing device comprises an air cylinder fixed on the aggregate bin, a sealing door arranged at the piston end of the air cylinder and a connecting arm hinged on the aggregate bin, and the lower end of the connecting arm extends to the position near the lower part of the discharge opening and is fixedly connected with the sealing door; the connecting arm is hinged to the aggregate bin; the lower end face of the upper aggregate bin is provided with two discharge openings, the lower end face of the lower aggregate bin is provided with one discharge opening, and the discharge opening orthographic projection of the upper aggregate bin is covered in the orthographic projection of the feed opening of the lower aggregate bin.
Preferably: the area of the discharge opening of the lower aggregate bin is larger than that of the discharge opening of the upper aggregate bin, and the number of the connecting arms in the sealing device on the lower aggregate bin is two and the two connecting arms are symmetrically arranged; and a linkage structure for controlling the relative motion of the closed door is also arranged between the connecting arms.
Preferably: the linkage structure comprises hinged arms fixed to the upper portions of the connecting arms, a linkage rod is arranged between the two hinged arms, and two ends of the linkage rod are hinged to the end portions of the two hinged arms respectively.
Preferably: the sealing surface of the sealing door on the upper aggregate bin is arc-shaped, and the sealing surface of the sealing door on the lower aggregate bin is a plane.
Preferably: the upper aggregate bin is fixed on the frame body through bolts, and a lifting rope is arranged between the lower aggregate bin and the upper aggregate bin; the upper end of the lifting rope is connected to the middle part of the upper aggregate bin, and the lower end of the lifting rope is connected to the upper edge of the lower aggregate bin.
Preferably: the middle of the lifting rope is connected with a tension detection device through a knot.
Compared with the prior art, the utility model has the advantages that:
two discharge openings of the upper aggregate bin are opened simultaneously, the lower aggregate bin can be quickly discharged, the discharge opening of the lower aggregate bin is in a closed state, the weight of the lower aggregate bin and internal gravels can be detected by the tension detection device on the lifting rope, when the gravel and sand falling in the upper aggregate bin reaches a certain weight value, the discharge opening is closed, the falling amount is reduced, the weighing is more accurate, and the purpose of weighing is achieved.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Referring to fig. 1-4, an embodiment of a control device for improving the aggregate batching precision of a concrete mixing plant according to the present invention comprises a frame body 1; the aggregate bin is fixed on the frame body 1; the charging opening is arranged on the upper end surface of the aggregate bin; the discharge opening 8 is formed in the lower end face of the aggregate bin; the aggregate bin is also provided with a sealing device 2 for controlling the sealing of the discharge opening 8, the sealing device 2 comprises a cylinder 3 fixed on the aggregate bin, a sealing door 4 arranged at the piston end of the cylinder 3 and a connecting arm 5 hinged on the aggregate bin, and the lower end of the connecting arm 5 extends to the position near the lower part of the discharge opening 8 and is fixedly connected with the sealing door 4; and the connecting arm 5 is hinged on the aggregate bin; go up the terminal surface under the aggregate storehouse 6 and be provided with two discharge openings 8, the terminal surface is provided with a discharge opening 8 under 7 aggregate storehouses down, and is located 8 orthographic projections of discharge opening of 6 aggregate storehouses and covers under in 7 aggregate storehouses's the charge door orthographic projection.
The upper aggregate bin 6 and the lower aggregate bin 7 can realize the graded falling of sand and stone materials, and the falling speed of the upper aggregate bin 6 can be adjusted by controlling the opening and closing of one discharge opening 8 according to the arrangement of the two discharge openings 8 at the lower end of the upper aggregate bin 6; in the process, the cylinder 3 is used for pushing and pulling the closing door 4, and the discharge opening 8 can be conveniently opened through the rotation of the connecting arm 5.
The upper aggregate bin 6 is fixed on the frame body 1 through bolts, and a lifting rope 12 is arranged between the lower aggregate bin 7 and the upper aggregate bin 6; the upper end of a lifting rope 12 is connected with the middle part of the upper aggregate bin 6, and the lower end of the lifting rope 12 is connected with the upper edge of the lower aggregate bin 7; the middle of the lifting rope 12 is connected with a tension detection device 13 through a knot.
So configured, the tension detection device 13 can be electrically connected with the control module, and the control module is electrically connected with the cylinder 3; thus, the single door and the double doors of the upper aggregate bin 6 can be controlled to realize rough and fine weighing of the aggregate; two discharge openings 8 of this place last aggregate storehouse 6 are opened simultaneously, can down unload fast in aggregate storehouse 7, at this moment discharge opening 8 of lower aggregate storehouse 7 is in the closed condition, and pulling force detection device 13 on lifting rope 12 can detect the weight of lower aggregate storehouse 7 and inside grit, close a discharge opening 8 when waiting to the stone sand material of whereabouts in last aggregate storehouse 6 and reaching certain weight value, the whereabouts volume reduces, it is more accurate to weigh, reach the purpose of accurate title.
The area of a discharge opening 8 of the lower aggregate bin 7 is larger than that of a discharge opening 8 on the upper aggregate bin 6, and the number of the connecting arms 5 in the sealing device 2 on the lower aggregate bin 7 is two and the connecting arms are symmetrically arranged; a linkage structure 9 for controlling the relative movement of the closing door 4 is also arranged between the connecting arms 5.
The discharge opening 8 of the lower aggregate bin 7 is opened in a manner different from the manner in which the discharge opening 8 of the upper aggregate bin 6 is opened, so that the purpose of this is to facilitate the quick discharge of the lower aggregate bin 7 by a large discharge opening 8 output area after the weighing is completed.
The linkage structure 9 comprises articulated arms 10 fixed on the upper part of the connecting arm 5, a linkage rod 11 is arranged between the two articulated arms 10, and two ends of the linkage rod 11 are respectively articulated with the end parts of the two articulated arms 10.
When the discharge opening 8 is opened, the cylinder 3 works to pull the closing door 4, then the closing door 4 drives the connecting arm 5 to rotate, the connecting arm 5 drives the hinged arm 10 to move, the hinged arm 10 transmits force to the other connecting arm 5 through the linkage rod 11, and the connecting arm 5 drives the other closing door 4 to move, so that the opening operation of the discharge opening 8 is completed; the arrangement of the similar split door normally requires two doors to be accepted simultaneously, so that the arrangement can complete the work of two closed doors 4 on the premise of only utilizing one air cylinder 3, the structure is simple, the operation is convenient, and the cost is saved.
The sealing surface of the sealing door 4 positioned on the upper aggregate bin 6 is in an arc shape, and the sealing surface of the sealing door 4 positioned on the lower aggregate bin 7 is a plane.
The above description is only for the specific embodiment of the present invention, but the technical features of the present invention are not limited thereto, and any person skilled in the art can make changes or modifications within the scope of the present invention.