Coulter blade and disc feeder comprising same

Abstract

The coulter paddle comprises a stirring rod and a scraper located at the tail end of the stirring rod, the scraper is provided with an arc surface suitable for cleaning the circumferential inner wall of the disc feeder, and the side face of the scraper is provided with two guide surfaces intersecting at the front edge. The front edge is located in front of the guide surfaces in the rotating direction of the stirring rod, and the two guide surfaces are located on the upper side and the lower side of the horizontal plane where the front edge is located respectively. The scraper used for cleaning the circumferential inner wall of the disc feeder is arranged in the disc feeder, the two guide faces are arranged on the side face of the scraper, and the front portions of the guide faces intersect at the front edge, so that when the disc feeder works, the front edge of the scraper makes contact with materials firstly and moves backwards under the guide action of the guide faces, and the materials are conveyed to the disc feeder. Therefore, the front contact area of the scraper and materials is reduced, the materials are in smooth transition on the scraper, the resistance of the rotating shaft is reduced, and the service life of the disc feeder is not affected.

Description

Technical Field

[0001] The utility model relates to the technical field of disc feeder design, in particular to a plow blade and a disc feeder comprising the plow blade. Background Art

[0002] The positive electrode material of lithium batteries is in powder form. In order to avoid agglomeration, the disc feeder has high requirements for stirring effect. The existing disc feeder only pushes the material through a scraper, and there is only a conical top cover above the scraper, so that the material slides to the periphery. However, the material is prone to sticking to the inner wall of the disc, resulting in material loss.

[0003] The rotation speed of the disc feeder is relatively low. If a conventional scraper (plate-shaped) is used to scrape the material on the inner wall of the disc, the scraped material is likely to accumulate near the inner wall. The scraper's obstruction of the material and the accumulated material will increase the rotational resistance of the shaft, affecting its service life. In addition, due to the small depth of the disc feeder, the material accumulated near the inner wall may fall to the outside of the disc during the mixing process, causing material loss and environmental pollution.

[0004] Therefore, it is necessary to design a disc feeder that can avoid material adhesion to the wall and material loss and ensure the service life of the equipment. Utility Model Content

[0005] In order to solve the technical problems of the disc feeder in the prior art that materials adhere to the inner wall of the disc and conventional scrapers cannot be used in the equipment, the utility model provides a plow blade and a disc feeder including the plow blade to solve the above problems.

[0006] The utility model proposes a plow blade, comprising a stirring rod and a scraper located at the end of the stirring rod, the scraper having an arc surface suitable for cleaning the inner wall of the circumference of a disc feeder, the side surface of the scraper having two guide surfaces intersecting at a front edge, the front edge being located in front of the guide surface along the rotation direction of the stirring rod, and the two guide surfaces being respectively located at the upper and lower sides of a horizontal plane where the front edge is located.

[0007] Furthermore, the guide surface is a plane or an outwardly protruding arc surface.

[0008] Furthermore, one end of the two guide surfaces intersects at the front edge, and the other end is connected to the first connecting surface.

[0009] Furthermore, a second connecting surface is connected to the radial inner side of the two guide surfaces, the second connecting surface is connected to the stirring rod, and the two guide surfaces gradually incline toward the horizontal plane where the front edge is located from the arc surface to the second connecting surface.

[0010] Furthermore, the area of ​​the second connecting surface is smaller than the area of ​​the arc surface.

[0011] The utility model also proposes a disc feeder, comprising a disc and a stirring assembly, wherein the stirring assembly comprises a driving motor, a rotating shaft, a scraper and the above-mentioned plow blade; the lower end of the rotating shaft is connected to the driving motor; the stirring rod and the scraper of the plow blade are connected to the rotating shaft, and the scraper is arranged close to the inner bottom surface of the disc.

[0012] Furthermore, an oblique support rod is connected between the stirring rod and the rotating shaft.

[0013] Furthermore, there are two or more plow blades and scrapers arranged in an array along the circumferential direction.

[0014] Furthermore, the lower surface of the scraper is a plane.

[0015] Furthermore, the top of the scraper is an inclined surface extending obliquely downward.

[0016] The beneficial effects of the utility model are:

[0017] (1) The utility model provides a scraper for cleaning the inner wall of the disc feeder, and two guide surfaces are provided on the side of the scraper, the front of which intersects with the front edge. When the disc feeder is working, the front edge of the scraper contacts the material first, and moves backward under the guidance of the guide surface, thereby reducing the front contact area between the scraper and the material, so that the material smoothly transitions on the scraper, thereby reducing the resistance of the rotating shaft and does not affect the service life of the disc feeder.

[0018] (2) The two guide surfaces in the utility model are arranged to be inclined along the radial direction, and the materials scraped from the inner wall of the disc feeder can be moved toward the center along the guide surfaces, thereby preventing the materials from accumulating on the inner wall and further preventing the materials from scattering to the outside. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0020] Figure 1 It is a structural schematic diagram of the plow blade described in the utility model;

[0021] Figure 2 It is a schematic diagram of the assembly of the plow blade and the rotating shaft of the utility model;

[0022] Figure 3 It is a front view of a specific embodiment of the disc feeder described in the utility model (the circumferential wall surface of the disc is not shown);

[0023] Figure 4 It is a top view of a specific implementation of the disc feeder described in the utility model.

[0024] In the figure, 1, stirring rod, 2, scraper, 201, arc surface, 202, guide surface, 203, front edge, 204, first connecting surface, 205, second connecting surface, 3, disc, 4, driving motor, 5, rotating shaft, 6, scraper, 7, plow blade, 701, inclined surface, 8, diagonal support rod. DETAILED DESCRIPTION

[0025] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0026] Embodiment 1

[0027] like Figure 1-Figure 2 As shown, a plow blade is used in a disc feeder, including a stirring rod 1 and a scraper 2 located at the end of the stirring rod 1, one end of the stirring rod 1 is connected to the rotating shaft 5, and the scraper 2 is located at the other end of the stirring rod 1. The scraper 2 has an arc surface 201 suitable for cleaning the inner wall of the disc feeder, and the arc surface 201 approximately fits the inner wall of the disc feeder. The side of the scraper 2 has two guide surfaces 202 intersecting at a front edge 203. The side of the scraper 2 refers to the surface connected to the arc surface 201, and the front edge 203 is located in front of the guide surface 202 along the rotation direction of the stirring rod 1, and the two guide surfaces 202 are respectively located on the upper and lower sides of the horizontal plane where the front edge 203 is located.

[0028] like Figure 1 As shown, the two guide surfaces 202 extend from the front edge 203 in the upward and downward directions respectively. When the disc feeder rotates, the front edge 203 on the scraper 2 first contacts the material, and the front collision area with the material is small. The material can move backward along the upper and lower guide surfaces 202. The two guide surfaces 202 have a certain inclination angle with the movement direction of the material and will not collide head-on, thereby reducing resistance, reducing the rotational resistance of the material to the rotating shaft 5, and avoiding loss of service life.

[0029] The guide surface 202 may be a plane or an outwardly protruding arc surface.

[0030] The side of the scraper 2 can be composed of two or more surfaces. When the side of the scraper 2 is composed of two surfaces, the two guide surfaces 202 are arc-shaped surfaces, and the front and rear ends of the guide surfaces 202 intersect. When the side of the scraper 2 is composed of more than two side surfaces, the two guide surfaces 202 can be planes. In a specific embodiment of the present invention, one end of the two guide surfaces 202 intersects at the front edge 203, and the other end is connected to the first connecting surface 204. The first connecting surface 204 is also preferably a plane.

[0031] Embodiment 2

[0032] On the basis of the first embodiment, the radial inner side of the two guide surfaces 202 is connected with a second connecting surface 205, the second connecting surface 205 is connected to the stirring rod 1, and the two guide surfaces 202 gradually tilt toward the horizontal plane where the front edge 203 is located from the arc surface 201 to the second connecting surface 205. That is, the two guide surfaces 202 gradually approach the center of the scraper 2 from the outside to the inside in the radial direction, and the material scraped from the inner wall of the disc feeder can be moved radially inward along the guide surface 202, thereby preventing the material from accumulating on the inner wall, and then preventing the material from scattering to the outside, and at the same time, the stirring of the material can be increased. Near the inner wall, the material gradually rolls radially inward, improving the stirring effect.

[0033] Since the guide surface 202 is radially inclined, the area of ​​the second connection surface 205 can be smaller than that of the arc surface 201. The second connection surface 205 is connected to the stirring rod 1, and the area thereof can be larger than the end surface of the stirring rod 1. The second connection surface 205 is preferably a plane.

[0034] Embodiment 3

[0035] A disc feeder, such as Figure 3 and Figure 4 As shown, it includes a disc 3 and a stirring assembly, and the stirring assembly includes a driving motor 4, a rotating shaft 5, a scraper 6 and the above-mentioned plow blade 7; the lower end of the rotating shaft 5 is connected to the driving motor 4; the stirring rod 1 and the scraper 6 of the plow blade 7 are connected to the rotating shaft 5, and the scraper 6 is arranged close to the inner bottom surface of the disc 3. The bottom plate of the disc 3 is provided with a discharge port, and the scraper 6 is used to push the material toward the discharge port.

[0036] The lower surface of the scraper 6 is preferably a plane, and the top of the scraper 6 is preferably a slope 701 extending obliquely downward, which can prevent material from piling up on the top of the scraper 6.

[0037] There are two or more plow blades 7 and scrapers 6 arranged in an array along the circumferential direction.

[0038] In order to reduce the pressure on the stirring rod 1 , an oblique support rod 8 is preferably connected between the stirring rod 1 and the rotating shaft 5 , and the oblique support rod 8 can share the force on the stirring rod 1 .

[0039] In the description of the present invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "radial", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0040] Furthermore, the terms “first”, “second”, etc. are used for descriptive purposes only and are not to be understood as indicating or implying relative importance.

[0041] In this specification, the schematic representation of the terms does not necessarily refer to the same embodiment. Moreover, the specific features, structures, materials or characteristics described can be combined in any suitable manner in one or more embodiments.

[0042] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A plow blade, characterized in that: The invention comprises a stirring rod (1) and a scraper (2) located at the end of the stirring rod (1); the scraper (2) has an arc surface (201) suitable for cleaning the inner wall of the circular disc feeder; the side surface of the scraper (2) has two guide surfaces (202) intersecting with a front edge (203); the front edge (203) is located in front of the guide surface (202) along the rotation direction of the stirring rod (1); and the two guide surfaces (202) are respectively located on the upper and lower sides of the horizontal plane where the front edge (203) is located.

2. The plow blade according to claim 1, characterized in that: The guide surface (202) is a plane or an outwardly protruding arc surface.

3. The plow blade according to claim 1, characterized in that: One end of the two guide surfaces (202) intersects at the front edge (203), and the other end is connected to the first connecting surface (204).

4. The plow blade according to claim 1, characterized in that: A second connecting surface (205) is connected to the radial inner side of the two guide surfaces (202), and the second connecting surface (205) is connected to the stirring rod (1). The two guide surfaces (202) gradually incline toward the horizontal plane where the front edge (203) is located from the arc surface (201) to the second connecting surface (205).

5. The plow blade according to claim 4, characterized in that: The area of ​​the second connecting surface (205) is smaller than the area of ​​the arc surface (201).

6. A disc feeder, characterized in that: It comprises a disc (3) and a stirring assembly, wherein the stirring assembly comprises a driving motor (4), a rotating shaft (5), a scraper (6) and a plow blade (7) as described in any one of claims 1 to 5; the lower end of the rotating shaft (5) is connected to the driving motor (4); the stirring rod (1) and the scraper (6) of the plow blade (7) are connected to the rotating shaft (5), and the scraper (6) is arranged close to the inner bottom surface of the disc (3).

7. The disc feeder according to claim 6, characterized in that: An oblique support rod (8) is connected between the stirring rod (1) and the rotating shaft (5).

8. The disc feeder according to claim 6, characterized in that: The plow blades (7) and scrapers (6) are arranged in arrays in two or more directions along the circumferential direction.

9. The disc feeder according to claim 6, characterized in that: The lower surface of the scraper (6) is a plane.

10. The disc feeder according to claim 6, characterized in that: The top of the scraper (6) is a slope (701) extending obliquely downward.

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