Plow-type mixing doctor blade structure

Abstract

The application discloses a plough type stirring scraper structure, which comprises a stirring frame, a stirring arm and a stirring scraper, the scraper body adopts a plough type structure, a connecting column is arranged on the upper portion of the scraper body, and inclined surfaces are arranged on the two sides of the connecting column and connected with the upper surfaces of the bottom inclined surfaces; the stirring process has a good effect of material diversion and dispersion, and damage caused by the collision and impact of large materials with the scraper is avoided; at least two waist-shaped counterbores are arranged in the connecting column, the back surface of the connecting column is a semicircular connecting groove matched with the bottom of the stirring arm, the stirring arm and the scraper are connected in a bolt connection mode, components can be quickly replaced and adjusted, the operation time of maintenance is reduced, and cost is saved. The plough type stirring scraper structure has the advantages of reasonable structure, convenient use, high practicability, convenient maintenance, long service life and the like, and effectively solves the problem of short service life of the bottom scraper of an existing concrete mixer.

Description

Technical Field

[0001] This invention relates to the field of mixing mechanisms in concrete mixers, and more particularly to a plow-type mixing scraper structure. Background Technology

[0002] Among the known vertical shaft planetary concrete mixers, a few models use bottom scrapers. The bottom scraper operates at the bottom of the mixing container throughout the entire mixing process, continuously mixing the concrete through a complex running trajectory. This accelerates scraper wear and shortens the service life of the bottom scraper. In addition, when encountering large aggregates, the scraper structure cannot divert and disperse them in time, resulting in greater impact on the mixing arms. In severe cases, this can directly affect the life of the gearbox, and the maintenance is time-consuming and costly, making it difficult to meet customer needs. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a plow-type mixing scraper structure to overcome the problems mentioned above. The structure is reasonable and has the advantages of being easy to use, practical, easy to maintain and repair, and having a long service life, which effectively solves the problem of the short service life of the existing concrete mixer bottom scraper.

[0004] The technical solution adopted by the present invention to solve its technical problem is: a plow-type stirring scraper structure, including a stirring frame, a stirring arm and a stirring scraper, wherein the two ends of the stirring arm are respectively connected to the stirring frame and the stirring scraper, and the stirring scraper includes a scraper body and a connecting column;

[0005] The front of the scraper body is composed of two inclined surfaces. The two inclined surfaces gradually converge from the back of the scraper body towards the front of the scraper body. The upper part of the two inclined surfaces gradually converges, and finally the two inclined surfaces intersect at the front of the scraper body to form a protruding ridge, thus forming a plow-like structure.

[0006] The connecting column is vertically positioned above the scraper body. Connecting inclined surfaces are provided on both sides of the connecting column, with the lower end of the connecting inclined surface connected to the upper end of the inclined surface. The middle part of the connecting column is provided with no less than two waist-shaped countersunk holes, through which bolts pass and are locked to the stirring arm.

[0007] Furthermore, the front of the connecting post is provided with an inclined connecting surface that connects to the protruding ridge at the front of the scraper body.

[0008] Furthermore, the back of the connecting column is provided with a first clearance groove and a second clearance groove.

[0009] Furthermore, a cavity is provided on the back of the scraper body to reduce the overall weight of the scraper body.

[0010] Furthermore, the bottom of the scraper body has a horizontal surface structure.

[0011] Furthermore, the top of the cavity is connected to the bottom of the connecting groove.

[0012] Furthermore, the back of the connecting column is provided with a semi-circular connecting groove along the vertical direction, the lower end of the stirring arm is inserted into the connecting groove, and the bolt passes through the waist-shaped countersunk hole and locks the stirring arm.

[0013] The beneficial effects of this invention are as follows: A plow-type mixing scraper structure is provided, with the scraper body adopting a plow-type structure. A connecting column is provided at the upper part of the scraper body, and inclined surfaces on both sides of the connecting column connect to the top of the bottom inclined surface. During the mixing process, this structure effectively diverts and disperses materials, preventing damage caused by collisions and impacts between larger materials and the scraper. The connecting column has at least two oblong countersunk holes in the middle, and a semi-circular connecting groove on the back of the connecting column that fits the bottom of the mixing arm. The mixing arm and scraper are connected by bolts, allowing for quick replacement and adjustment of components, reducing maintenance time and saving costs. Its reasonable structure offers advantages such as ease of use, strong practicality, convenient maintenance, and long service life, effectively solving the problem of short service life of existing concrete mixer bottom scrapers. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is a schematic diagram of the overall structure of the plow-type stirring scraper structure described in this invention;

[0016] Figure 2 This is an exploded view of a plow-type stirring scraper structure described in this invention;

[0017] Figure 3 This is a three-dimensional structural diagram of the scraper of the plow-type stirring scraper structure described in this invention;

[0018] Figure 4 This is a front view schematic diagram of the scraper structure of the plow-type stirring scraper described in this invention;

[0019] Figure 5 This is a top view schematic diagram of the scraper structure of the plow-type stirring scraper described in this invention;

[0020] Figure 6 This is a schematic diagram of the AA cross-sectional structure of the plow-type stirring scraper structure described in this invention;

[0021] Figure 7 This is a schematic diagram of the cross-sectional structure of the scraper BB of the plow-type stirring scraper structure described in this invention;

[0022] Figure 8 This is a rear view schematic diagram of the scraper structure of the plow-type stirring scraper structure described in this invention.

[0023] The markings in the attached diagram are described below:

[0024] 1. Stirring rack, 2. Stirring arm, 3. Stirring scraper, 3-1. Connecting column, 3-2. Inclined surface, 3-3. Scraper body, 3-4. Waist-shaped countersunk hole, 3-5. Connecting groove, 3-6. Cavity, 3-7. First clearance groove, 3-8. Second clearance groove, 3-9. Connecting inclined surface, 3-10. Inclined connecting surface, 3-11. Protruding ridge, 3-12. Bottom. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0026] like Figures 1 to 8 The plow-type stirring scraper structure shown includes a stirring frame 1, a stirring arm 2, and a stirring scraper 3. The two ends of the stirring arm 2 are connected to the stirring frame 1 and the stirring scraper 3, respectively. The stirring frame 1 is connected to the stirring motor through a transmission mechanism. The stirring frame 1 drives the stirring arm 2 and the stirring scraper 3 to rotate and stir in the stirring container.

[0027] like Figure 3 As shown, the stirring scraper 3 includes a scraper body 3-3 and a connecting column 3-1.

[0028] like Figure 3 As shown, the front of the scraper body 3-3 is composed of two inclined surfaces 3-2. In this embodiment, the two inclined surfaces 3-2 are an integral structure, which is made by stamping, casting or machining of sheet metal. In other possible embodiments, the two inclined surfaces 3-2 may also be composed of two separate sheet metals.

[0029] like Figure 3 As shown, in terms of shape, the two beveled surfaces 3-2 gradually converge from the back of the scraper body 3-3 towards the front. The upper ends of the two beveled surfaces 3-2 gradually converge, eventually intersecting at the front of the scraper body 3-3 to form a protruding ridge 3-11, thus creating a plow-like structure. Figure 3 The structure shown is smaller in the front and larger in the back, and smaller at the top and larger at the bottom. During the mixing process, the material is dispersed onto the two inclined surfaces when passing through the protrusions 3-11, achieving the technical effect of rapid material dispersion.

[0030] like Figure 3 , 7 As shown, the connecting post 3-1 is vertically arranged above the scraper body 3-3. Connecting inclined surfaces 3-9 are provided on both sides of the connecting post 3-1. The lower end of the connecting inclined surface 3-9 is connected to the upper end of the inclined surface 3-2. An inclined connecting surface 3-10 is provided on the front of the connecting post 3-1, which is connected to the protruding ridge 3-11 at the front of the scraper body 3-3.

[0031] This structure allows for a smoother transition between the side and front of the connecting column, reducing friction between the material and the scraper. At the same time, a new protrusion is formed at the connection between the connecting inclined surface 3-9 and the inclined surface 3-2, which disperses the material in different directions. The dispersed materials in different directions collide and mix with each other, accelerating the mixing efficiency.

[0032] like Figures 3 to 7 As shown, the connecting column 3-1 has at least two waist-shaped countersunk holes 3-4 in the middle, and the back of the connecting column 3-1 has a semi-circular connecting groove 3-5 in the vertical direction. The lower end of the stirring arm 2 is inserted into the connecting groove 3-5, and the bolt passes through the waist-shaped countersunk hole 3-4 and the stirring arm 2 to lock it.

[0033] like Figure 6 and 8 As shown, the back of the connecting column 3-1 is provided with a first clearance groove 3-7 and a second clearance groove 3-8.

[0034] like Figure 8 As shown, the back of the scraper body 3-3 is provided with a cavity 3-6 to reduce the overall weight of the scraper body 3-3.

[0035] like Figure 6 As shown, the bottom 3-12 of the scraper body 3-3 is a horizontal structure, and the bottom 3-12 is perpendicular to the connecting post 3-1 and the connecting groove 3-5.

[0036] like Figure 6 As shown, the top of the cavity 3-6 is connected to the bottom of the connecting groove 3-5, which facilitates the adjustment of the height of the scraper and the bottom of the stirring container.

[0037] The plow-type mixing scraper structure described in this invention has a reasonable structure. The scraper body adopts a plow-type structure, and a connecting column is provided on the upper part of the scraper body. The connecting column has inclined surfaces on both sides that connect to the top of the bottom inclined surface. During the mixing process, it has a good effect of diverting and dispersing materials, avoiding damage caused by collision and impact between larger materials and the scraper. The connecting column has at least two waist-shaped countersunk holes in the middle, and the back of the connecting column has a semi-circular connecting groove that fits the bottom of the mixing arm. The mixing arm and the scraper are connected by bolts, which allows for quick replacement and adjustment of parts, reducing maintenance time and saving costs. Its reasonable structure has the advantages of being easy to use, practical, easy to maintain, and having a long service life, effectively solving the problem of short service life of existing concrete mixer bottom scrapers.

[0038] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A plow-type stirring scraper structure, comprising a stirring frame (1), a stirring arm (2), and a stirring scraper (3), wherein both ends of the stirring arm (2) are connected to the stirring frame (1) and the stirring scraper (3), respectively, characterized in that: The stirring scraper (3) includes a scraper body (3-3) and a connecting column (3-1); The front of the scraper body (3-3) is composed of two inclined surfaces (3-2). The two inclined surfaces (3-2) gradually converge from the back of the scraper body (3-3) toward the front of the scraper body. The upper ends of the two inclined surfaces (3-2) gradually converge, and finally the two inclined surfaces (3-2) intersect at the front of the scraper body (3-3) to form a protruding ridge (3-11), thus forming a plow-like structure. The connecting post (3-1) is vertically arranged above the scraper body (3-3). Connecting inclined surfaces (3-9) are provided on both sides of the connecting post (3-1). The lower end of the connecting inclined surface (3-9) is connected to the upper end of the inclined surface (3-2). The middle part of the connecting post (3-1) is provided with no less than two waist-shaped countersunk holes (3-4). The connecting post (3-1) has an inclined connecting surface (3-10) on its front side, which connects to the protruding edge (3-11) at the front of the scraper body (3-3); The back of the scraper body (3-3) is provided with a cavity (3-6) to reduce the overall weight of the scraper body (3-3); The top of the cavity (3-6) is connected to the bottom of the connecting groove (3-5); The back of the connecting column (3-1) is provided with a semi-circular connecting groove (3-5) in the vertical direction. The lower end of the stirring arm (2) is inserted into the connecting groove (3-5), and the bolt passes through the waist-shaped countersunk hole (3-4) and the stirring arm (2) to lock it.

2. The plow-type stirring scraper structure according to claim 1, characterized in that: The back of the connecting column (3-1) is provided with a first clearance groove (3-7) and a second clearance groove (3-8).

3. The plow-type stirring scraper structure according to claim 1, characterized in that: The bottom (3-12) of the scraper body (3-3) is a horizontal structure.

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