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CN-115781901-B - Double-shaft uniform feeding dry and hard concrete spreader

CN115781901BCN 115781901 BCN115781901 BCN 115781901BCN-115781901-B

Abstract

The invention discloses a biaxial uniform feeding dry and hard concrete spreader, and belongs to the technical field of spreaders. The automatic feeding device comprises a hopper, a feeding assembly, door opening assemblies and a door opening assembly, wherein the bottom of the hopper is provided with a plurality of openings, the feeding assembly comprises a first speed reducer and a double star wheel structure, the double star wheel structure is arranged in the hopper, the first speed reducer is arranged on the side of the hopper, an output shaft of the first speed reducer penetrates through the hopper to be connected with the double star wheel structure, the door opening assemblies are the same in number as the openings, the door opening assemblies comprise driving units and door opening and closing structures, the driving units are connected with the door opening and closing structures, and the door opening and closing structures are driven to move and separate from or cover the openings through the driving units. The first speed reducer output shaft drives synchronous gear to rotate so that the double star wheels are meshed with each other for feeding, feeding is more uniform, feeding efficiency is greatly improved, each discharging opening at the bottom of the hopper is provided with an opening and closing door structure, and the opening and closing door structure is controlled by independent door opening oil cylinders respectively, so that the door opening assembly is simple in structure, low in cost and easy to maintain.

Inventors

  • JIN XIN
  • WANG LEI
  • HE JIANMING
  • SHEN YUANHUI
  • Shen Wangfan
  • GUO XUEWEN

Assignees

  • 浙江广天构件集团股份有限公司

Dates

Publication Date
20260505
Application Date
20221130

Claims (6)

  1. 1. A dual-shaft uniform-feeding dry and hard concrete spreader, comprising: the bottom of the hopper is provided with a plurality of openings; The feeding assembly comprises a first speed reducer and a double star wheel structure, the double star wheel structure is arranged in the hopper, the first speed reducer is arranged at the side part of the hopper, and an output shaft of the first speed reducer penetrates through the hopper to be connected with the double star wheel structure; the double-star wheel structure consists of two star wheel shafts and star wheels arranged on the star wheel shafts, and an extrusion area is formed between the two star wheels; The end parts of the two star wheel shafts are respectively provided with a synchronous gear, the two synchronous gears are meshed, and the output shaft of the first speed reducer is connected with one synchronous gear; The door opening assembly is the same as the opening in number and comprises a driving unit and an opening and closing door structure, wherein the driving unit is connected with the opening and closing door structure, and the driving unit drives the opening and closing door structure to move and separate from or cover the opening; the driving unit is arranged as a door opening oil cylinder, the door opening oil cylinder is connected with the side wall of the hopper through a first connecting plate, and an output shaft of the door opening oil cylinder is connected with the door opening and closing structure; The opening and closing door structure includes: The guide brackets are arranged at the bottom of the hopper, the guide brackets are arranged on two sides of any one opening, and the guide brackets are provided with guide sliding grooves; The door plate is movably covered on the opening and is provided with a connecting piece, and the door plate is connected with an output shaft of the door opening oil cylinder through the connecting piece; the guide side plates are arranged on two sides of the door plate and close to the guide brackets, the guide side plates are provided with guide rods, and the guide rods are movably arranged in the guide sliding grooves.
  2. 2. A dual-shaft uniform feeding dry and hard concrete spreader according to claim 1, wherein two of the star wheels are rotated synchronously in the direction of the extrusion area, and the shutter structure is located directly under the extrusion area.
  3. 3. The dual-shaft uniform feed dry hard concrete spreader of claim 1, wherein the hopper further has a stirring assembly comprising: The through shaft penetrates through the hopper; the stirring impeller is connected with the through shaft and forms a stirring structure, and the stirring structure is positioned above the star wheel shaft; the second speed reducer is positioned at the side part of the hopper and is connected with the through shaft.
  4. 4. The dual-shaft uniform feeding dry and hard concrete spreader of claim 1, further comprising a spreader frame and a lifting assembly, wherein the hopper is positioned in the orthographic projection range of the spreader frame, and the spreader frame is connected with the hopper through the lifting assembly.
  5. 5. The dual-shaft uniform feed dry hard concrete spreader of claim 4, wherein the lifting assembly comprises: a second connecting plate mounted on the side of the hopper; And the fixed end of the lifting oil cylinder is connected with the frame of the material distributor, and the output shaft of the lifting oil cylinder is connected with the second connecting plate.
  6. 6. A dual-shaft uniform feed dry hard concrete spreader according to claim 3, further comprising a screen disposed within said hopper, said screen being positioned on top of said mixing impeller and adjacent to said hopper top surface.

Description

Double-shaft uniform feeding dry and hard concrete spreader Technical Field The invention belongs to the technical field of material distributors, and particularly relates to a double-shaft uniform feeding dry and hard concrete material distributor. Background The feeding mode of traditional cloth machine adopts unipolar cloth or screw cloth, and its two kinds of structures are similar the principle the same, and the adoption is extrusion formula cloth, can lead to concrete adhesion on the hopper lateral wall, also is difficult to wash, causes the pile up of concrete in the past for a long time to and the long-term wearing and tearing reduction life of hopper wall. In addition, the existing hopper often adopts a mechanical door opening structure during feeding, the whole structure is complex, and the problem that the existing hopper is difficult to clean after being stuck with concrete exists. Disclosure of Invention Aiming at the problems existing in the prior art, the invention provides a double-shaft uniform feeding dry and hard concrete spreader which is uniform in material distribution, improves material distribution efficiency and is stable in door opening. The invention can be realized by the following technical scheme: A dual-shaft uniform feed dry hard concrete spreader comprising: the bottom of the hopper is provided with a plurality of openings; The feeding assembly comprises a first speed reducer and a double star wheel structure, the double star wheel structure is arranged in the hopper, the first speed reducer is arranged at the side part of the hopper, and an output shaft of the first speed reducer penetrates through the hopper to be connected with the double star wheel structure; the door opening assembly is the same as the opening in number, and comprises a driving unit and an opening and closing door structure, wherein the driving unit is connected with the opening and closing door structure, and drives the opening and closing door structure to move and separate from or cover the opening through the driving unit. As a further improvement of the invention, the double star wheel structure consists of two star wheel shafts and star wheels arranged on the star wheel shafts, and an extrusion area is formed between the two star wheels. . As a further improvement of the invention, the end parts of the two star wheel shafts are respectively provided with a synchronous gear, the two synchronous gears are meshed, and the output shaft of the first speed reducer is connected with one of the synchronous gears. As a further improvement of the invention, the two star wheels synchronously rotate towards the direction of the extrusion area, and the opening and closing door structure is positioned right below the extrusion area. As a further improvement of the invention, the driving unit is provided with a door opening oil cylinder, the door opening oil cylinder is connected with the side wall of the hopper through a first connecting plate, and an output shaft of the door opening oil cylinder is connected with the door opening and closing structure. As a further improvement of the present invention, the opening and closing door structure includes: The guide brackets are arranged at the bottom of the hopper, the guide brackets are arranged on two sides of any one opening, and the guide brackets are provided with guide sliding grooves; The door plate is movably covered on the opening and is provided with a connecting piece, and the door plate is connected with an output shaft of the door opening oil cylinder through the connecting piece; the guide side plates are arranged on two sides of the door plate and close to the guide brackets, the guide side plates are provided with guide rods, and the guide rods are movably arranged in the guide sliding grooves. As a further improvement of the present invention, the hopper further has a stirring assembly including: The through shaft penetrates through the hopper; the stirring impeller is connected with the through shaft and forms a stirring structure, and the stirring structure is positioned above the star wheel shaft; the second speed reducer is positioned at the side part of the hopper and is connected with the through shaft. As a further improvement of the invention, the automatic feeding device further comprises a distributor frame and a lifting assembly, wherein the hopper is positioned in the orthographic projection range of the distributor frame, and the distributor frame is connected with the hopper through the lifting assembly. As a further improvement of the present invention, the lifting assembly includes: a second connecting plate mounted on the side of the hopper; And the fixed end of the lifting oil cylinder is connected with the frame of the material distributor, and the output shaft of the lifting oil cylinder is connected with the second connecting plate. As a further improvement of the invention, a screen is provided in the hopper, the screen being