A built-in variable speed unloading hopper device

Abstract

The present invention discloses a built-in variable speed discharge hopper device, comprising a silo, a hopper and a built-in variable speed discharge control mechanism. The silo, the hopper and the built-in variable speed discharge control mechanism are positioned by the cooperation of positioning holes and positioning pins. The hopper is a hyperbolic hopper. The built-in variable speed discharge control mechanism changes the opening and closing degree of multiple gear transmission aperture valves inside it by rotating a handle to adjust the hopper discharge rate. The device has the characteristics of simple operation and flexible adjustment of the hopper discharge rate.

Description

Technical Field

[0001] The invention relates to a built-in variable-rate unloading hopper device, which is suitable for the technical application fields such as the transportation of solid granules in the process of agricultural fertilization or drug mixing, which require different unloading rates according to working conditions. Background Art

[0002] A hopper is a storage and transportation structure widely used in the fields of chemical, pharmaceutical, and agricultural industries. Its function is to discharge the materials in the hopper continuously and stably during operation. Generally, the requirement for the hopper unloading rate is that the faster the better. However, in agricultural fertilization and pesticide mixing, it is necessary to accurately calculate and strictly measure different crops or pests and diseases, and apply fertilizers and pesticides according to a certain ratio. This requires that the hopper for storing and transporting fertilizers and pesticides can discharge the materials from the hopper at a certain mass flow rate.

[0003] However, for general hoppers, their parameters are fixed, so the discharge rate is basically fixed. If different discharge rates are to be achieved, different hoppers need to be replaced, resulting in a waste of resources. Therefore, the study of variable rate discharge hopper devices is of great significance for practical applications in the fields of agricultural fertilization and pesticide application. Summary of the invention

[0004] In order to solve the above problems, the present invention discloses a built-in variable rate unloading hopper device proposed by the present invention, the purpose of which is to achieve variable rate unloading of the storage hopper according to working conditions requiring different material quantities.

[0005] To achieve the above object, the present invention provides the following solutions:

[0006] A built-in variable rate discharge hopper device comprises a silo, a hopper and a built-in variable rate discharge control mechanism; the silo and the built-in variable rate discharge control mechanism, and the built-in variable rate discharge control mechanism and the hopper are positioned by the cooperation between positioning holes and positioning pins.

[0007] The shape of the hopper is a hyperbolic hopper, and the initial inclination angle of the hopper is 35°. The hopper of this shape has good unloading stability.

[0008] The built-in variable rate discharge control mechanism includes a shell, a linkage mechanism, a gear aperture valve and a bottom support. The principle of the mechanism controlling the hopper discharge rate is: changing the size of the material passage in the hopper to achieve control and adjustment of the discharge rate. The control and adjustment of the passage size is achieved through a gear-driven aperture valve. The built-in variable rate discharge control mechanism has seven passages, which are composed of a funnel-shaped guide groove on the shell, a gear-driven aperture valve and a through hole on the bottom support. The corresponding funnel-shaped guide groove, gear-driven aperture valve and through hole maintain a concentric relationship. One of the passages is located at the center of the entire hopper device, and the remaining six passages are evenly distributed around the center, and the angle between each passage is 60°.

[0009] The linkage mechanism includes a driving rotating member with a handle, a central rotating member and five driven rotating members, wherein the driving rotating member and the driven rotating member are each provided with a linkage end, the central rotating member is provided with six linkage ends, and the linkage end of each rotating member is provided with a semicircular rotating block, and each semicircular rotating block of the linkage end of the central rotating member is connected to the driving rotating member and the semicircular rotating blocks of the linkage end of each driven rotating member through a connecting piece and a pin and an axial hole and maintained tangent, and the linkage mechanism is connected through the internal positioning hole and the raised positioning pins provided on the gear aperture blades.

[0010] The gear-driven aperture valve comprises a gear ring and six gear-driven aperture blades, one end of the gear-driven aperture blade is a gear, meshing with the gear ring to form a planetary gear structure, and the other end of the gear-driven aperture blade is a fan-shaped structure with the same curvature on both sides, and the opening and closing adjustment of the gear-driven aperture valve can be achieved through the self-rotation of the gear-driven aperture blade and the revolution around the center of the gear-driven aperture valve. Each gear-driven aperture valve is positioned by the cooperation between the positioning hole on the gear ring and the positioning pin on the positioning support, so as to ensure that the gear-driven aperture valve and the through hole on the positioning support are respectively concentric.

[0011] In summary, the working principle of the present invention is:

[0012] The built-in variable rate unloading control mechanism transmits the rotation of the handle to the gear aperture blades in the seven gear-driven aperture valves through the driving rotating member, the central rotating member and the driven rotating member in the linkage mechanism by rotating the handle, so that the gear aperture blades can complete the self-rotation and revolution, thereby realizing the adjustment of the passage size by the built-in variable rate unloading control mechanism, and further realizing the control and adjustment of the unloading rate of the entire hopper device.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The present invention adopts a hyperbolic hopper with a starting inclination angle of 35°. Compared with ordinary conical hoppers, this shape of hopper has better unloading stability.

[0015] 2. The present invention adds a built-in variable rate unloading mechanism with adjustable passage size in the hopper device, so that the unloading rate of the hopper is adjustable and can be applied to different working conditions.

[0016] 3. The present invention can synchronously control the opening and closing of multiple passages by rotating the handle of the linkage mechanism, which is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention;

[0018] Figure 2 is a cross-sectional view of the silo of the present invention;

[0019] Figure 3 is a cross-sectional view of the hopper of the present invention;

[0020] Figure 4 is an exploded view of the present invention;

[0021] Figure 5 It is a schematic diagram of the structure of the housing in the built-in variable rate discharge control mechanism of the present invention;

[0022] Figure 6 It is a top view of the linkage mechanism in the built-in variable speed discharge control mechanism of the present invention;

[0023] Figure 7 It is a top view of the driving rotating member, the central rotating member and the driven rotating member of the linkage mechanism in the built-in variable speed unloading control mechanism of the present invention;

[0024] Figure 8 1 is a top view of the gear-driven aperture valve of the present invention, wherein the left side is a closed state and the right side is a fully open state;

[0025] Fig. 9 It is a structural schematic diagram of a positioning support member in a built-in variable rate unloading control mechanism of the present invention;

[0026] Fig.10 It is a schematic diagram of the control effect of the built-in variable speed unloading control mechanism of the present invention, wherein (a) is the fully closed state of the passage, (b) is the semi-open state of the passage achieved by rotating the handle 12° counterclockwise from the fully closed state, and (c) is the fully open state of the passage achieved by rotating the handle 24° counterclockwise from the fully closed state.

[0027] List of reference numerals:

[0028] 1-silo, 2-built-in variable speed discharge control mechanism, 3-hopper, 1-1-locating hole on silo, 3-1-protruding locating pin on hopper, 2-1-housing, 2-1-1-funnel-shaped guide groove on housing, 2-1-2-locating hole on housing, 2-1-3-protruding locating pin on housing, 2-2-linkage mechanism, 2-2-1-handle; 2-2-2-driving rotating part, 2-2-3-intermediate rotating part, 2-2-4-driven rotating part, 2-2-5-pin, 2-2-6-connecting piece, 2-2-7-rotating part linkage Semicircular rotating block at the end, 2-2-8-positioning hole on the rotating block, 2-2-9-positioning hole on the rotating member, 2-3-gear transmission aperture valve, 2-3-1-gear ring, 2-3-2-gear aperture blades, 2-3-3-raised positioning pins on the gear aperture blades, 2-3-4-positioning hole on the gear ring, 2-4-positioning support, 2-4-1-raised long positioning pin on the positioning support, 2-4-2-raised short positioning pin on the positioning support, 2-4-3-positioning hole on the positioning support, 2-4-4-through hole on the positioning support. DETAILED DESCRIPTION

[0029] The present invention is further explained below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0030] like Figure 1 , 2 As shown in , 3, 4, and 9, it includes a silo 1, a hopper 3 and a built-in variable rate unloading control mechanism 2; the silo 1 and the built-in variable rate unloading control mechanism 2 are positioned and connected by the positioning holes on the silo 1 and the raised positioning pins 2-1-3 on the outer shell 2-1 of the built-in variable rate unloading control mechanism 2, and the built-in variable rate unloading control mechanism 2 and the hopper 3 are positioned and connected by the positioning holes 2-4-3 on the positioning support 2-4 in the built-in variable rate unloading control mechanism 2 and the raised positioning pins 3-1 on the hopper.

[0031] like Figure 3 As shown, the shape of the hopper 3 is a hyperbola, and the initial inclination angle of the hyperbola hopper is 35°; the hyperbola hopper with a constant shrinkage rate has better unloading stability when the initial inclination angle is 35°.

[0032] like Figure 4 , 5As shown in , 7 and 9, the built-in variable speed discharge control mechanism 2 includes a housing 2-1, a linkage mechanism 2-2, seven gear-driven aperture valves, and a positioning support 2-4. The built-in variable speed discharge control mechanism 2 has seven passages, which are composed of a funnel-shaped guide groove 2-1-1 on the housing 2-1, a gear-driven aperture valve 2-3 and a through hole 2-4-4 on the bottom support 2-4. The corresponding funnel-shaped guide groove 2-1-1, the gear-driven aperture valve 2-3 and the through hole 2-4-4 are respectively kept in a concentric relationship. One of the passages is located at the center of the entire hopper device, and the remaining six passages are evenly distributed around the center, and each passage The angle between them is 60°, and the positioning connection between the gear-driven aperture valve 2-3 and the positioning support 2-4 is achieved through the positioning hole 2-3-4 on the gear ring 2-3-1 and the raised short positioning pin 2-4-2 on the positioning support 2-4. The positioning connection between the linkage mechanism 2-2 and the gear-driven aperture valve 2-3 is achieved through the positioning hole 2-2-9 on the rotating part and the raised positioning pin 2-3-3 on the gear aperture blade 2-3-2. The positioning connection between the outer shell 2-1 and the positioning support 2-4 is achieved through the positioning hole 2-1-2 on the outer shell 2-1 and the raised long positioning pin 2-4-1 on the positioning support 2-4.

[0033] like Figure 6 , 7 As shown, the linkage mechanism 2 includes a driving rotating member 2-2-2 with a handle 2-2-1, a central rotating member 2-2-3 and five driven rotating members 2-2-4, wherein the driving rotating member 2-2-2 and the driven rotating member 2-2-4 are each provided with a linkage end, the central rotating member 2-2-3 is provided with six linkage ends, and the linkage end of each rotating member is provided with a semicircular rotating block 2-2-7, and each semicircular rotating block 2-2-7 at the linkage end of the central rotating member 2-2-3 is connected to the semicircular rotating block 2-2-7 at the linkage end of the driving rotating member 2-2-2 and each driven rotating member 2-2-4. 2-2-7 are connected to the shaft hole 2-2-8 through the connecting piece 2-2-6 and the pin 2-2-5. The two semicircular rotating blocks 2-2-7 connected with the same connecting piece 2-2-6 remain tangent. During the driving process, the handle 2-2-1 is rotated to drive the rotating member 2-2-2 to rotate. Under the action of the semicircular rotating block 2-2-7 at the tangent linkage end constrained by the connecting piece 2-2-6 and the pin 2-2-5, the driving rotating member 2-2-2 drives the central rotating member 2-2-3 to rotate. Similarly, the central rotating member 2-2-3 drives the driven rotating member 2-2-4 to rotate.

[0034] like Figure 8As shown, the gear-driven aperture valve 2-3 includes a gear ring 2-3-1 and six gear aperture blades 2-3-2. One end of the gear aperture blade 2-3-2 is a gear, which meshes with the gear ring 2-3-1 to form a planetary gear structure. The other end of the gear aperture blade 2-3-2 is a fan-shaped structure with the same curvature on both sides. The opening and closing adjustment of the gear-driven aperture valve 2-3 can be achieved by the self-rotation of the gear aperture blade 2-3-2 and the revolution around the center of the gear-driven aperture valve 2-3.

[0035] In summary, if Fig.10 As shown, the handle 2-2-1 is turned, and the rotation of the handle 2-2-1 is transmitted to the gear aperture blades 2-3-2 in the seven gear-driven aperture valves 2-3 through the driving rotating member 2-2-2, the central rotating member 2-2-3 and the driven rotating member 2-3-4 in the linkage mechanism 2-2, so that the gear aperture blades 2-3-2 complete the self-rotation and revolution, thereby realizing the adjustment of the passage size by the built-in variable rate unloading control mechanism 2, and further realizing the control and adjustment of the unloading rate of the entire hopper device.

[0036] in Fig.10 (a) is the fully closed state of the passage. Fig.10 (b) The passage is in a half-open state when the handle is rotated 12° counterclockwise from the fully closed state. Fig.10 (c) The passage is in the fully open state when the handle is rotated 24° counterclockwise from the fully closed state.

[0037] The technical means disclosed in the scheme of the present invention are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical schemes composed of any combination of the above technical features.

Claims

1. A built-in variable-rate discharge hopper device, comprising a silo (1) and a hopper (3), characterized in that: A built-in variable speed discharge control mechanism (2) is provided between the silo (1) and the hopper (3); the built-in variable speed discharge control mechanism (2) is provided with seven material passages, one of which is located at the center of the entire hopper device, and the other six passages are evenly distributed around the center, and the angle between each passage is 60 degrees. The built-in variable speed discharge control mechanism (2) comprises a housing (2-1) and a linkage mechanism (2-2) sequentially located in the housing (2-1), seven gear-driven aperture valves (2-3) arranged on the same plane layer, and a positioning support (2-4), one of which is located at the center of the built-in variable speed discharge control mechanism (2), and the other six gear-driven aperture valves (2-3) are arranged on the same plane layer. The gear transmission aperture valve (2-3) is evenly distributed around the center, and the angle between them is 60 degrees. By adjusting the opening and closing degree of the gear transmission aperture valve (2-3), the size of the material passage in the hopper is changed to achieve control and adjustment of the discharge rate; the linkage mechanism (2-2) includes a driving rotating member (2-2-2) with a handle (2-2-1), a central rotating member (2-2-3), a driven rotating member, a pin (2-2-5) and a connecting piece (2-2-6), wherein the driving rotating member (2-2-2) and the driven rotating member are each provided with a linkage end, the central rotating member (2-2-3) is provided with six linkage ends, and the linkage ends of the driven rotating member, the driving rotating member (2-2-2) and the central rotating member (2-2-3) are all provided with semicircular rotating blocks (2-2-7). The semicircular rotating block (2-2-7) at the linkage end of the central rotating member (2-2-3) and the semicircular rotating block (2-2-7) between the linkage ends of the driving rotating member (2-2-2) and the driven rotating member (2-2-4) are always kept tangent through the connection piece (2-2-6) and the cooperation between the pin (2-2-5) and the shaft hole (2-2-8); each gear transmission aperture valve (2-3) includes a gear ring (2-3-1) with a positioning hole, and six gear aperture blades (2-3-2) with raised positioning pins, one end of the gear aperture blade (2-3-2) is a gear, which meshes with the gear ring (2-3-1) to form a planetary gear structure, and the other end is a fan-shaped structure with the same curvature on both sides, through the gear The aperture blades (2-3-2) rotate on their own and revolve around the center of the gear-driven aperture valve (2-3) to achieve the opening and closing adjustment of the gear-driven aperture valve (2-3); the positioning support (2-4) is provided with seven through holes (2-4-4); the size and position of the through holes (2-4-4) correspond one-to-one to the guide grooves (2-1-1) on the housing (2-1); the housing (2-1) and the positioning support (2-4) are positioned by the cooperation between the positioning holes provided on the housing (2-1) and the raised positioning pins provided on the positioning support (2-4); the positioning support (2-4) is also provided with a raised positioning pin that cooperates with the positioning hole on the gear ring (2-3-1) to achieve the positioning of the gear-driven aperture valve (2-3);The linkage mechanism (2-2) is connected by respectively cooperating with the raised positioning pins provided on the gear aperture blades (2-3-2) through the internal positioning holes, and the handle (2-2-1) is rotated to transmit the rotation of the handle (2-2-1) to the gear aperture blades (2-3-2) in the seven gear transmission aperture valves (2-3) through the driving rotating member (2-2-2), the central rotating member (2-2-3) and the driven rotating member in the linkage mechanism (2-2), so that the gear aperture blades (2-3-2) complete self-rotation and revolution, thereby realizing the internal The variable speed discharge control mechanism (2) adjusts the passage size; the silo (1) and the built-in variable speed discharge control mechanism (2) are positioned and connected by the positioning hole on the silo (1) and the raised positioning pin on the shell (2-1) of the built-in variable speed discharge control mechanism (2); the built-in variable speed discharge control mechanism (2) and the hopper (3) are positioned and connected by the positioning hole on the positioning support (2-4) of the built-in variable speed discharge control mechanism (2) and the raised positioning pin on the hopper. ; 2. A built-in variable rate discharge hopper device as claimed in claim 1, characterized in that: The hopper (3) is a hyperbolic hopper, and the starting inclination angle of the hyperbolic hopper is 35°.

3. A built-in variable rate discharge hopper device as claimed in claim 1, characterized in that: The guide groove (2-1-1) is funnel-shaped, wherein the angle between the six guide grooves (2-1-1) on the periphery is 60°, and the axis of the guide groove (2-1-1) located in the center coincides with the axis of the entire built-in variable speed discharge control mechanism (2).

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