Blanking control mechanism of hopper

Abstract

The utility model relates to the technical field of feeding devices, in particular to a hopper blanking control mechanism which comprises a hopper, a fixing frame is arranged on the lower side of a discharging port of the hopper, an electric push rod is arranged on each of the left side and the right side of the fixing frame, the end portion of a piston rod of each electric push rod is detachably connected with a flashboard, and the flashboards are connected in the fixing frame in a sliding mode. The two electric push rods synchronously act to drive the flashboards to move towards each other or away from each other so as to control the opening degree of the discharge hole; due to the fact that the hopper is in a hopper shape, discharging at the center of a discharging port is smooth, and when a single-side gate plate is arranged in the prior art, and the opening degree of the discharging port is smaller than one half, mineral aggregate is discharged from the side edge of the hopper, and the problem that discharging is not smooth possibly exists. The two gate plates are symmetrically arranged relative to the center of the discharging port, the center position of the hopper is a discharging point regardless of the size of an opening between the two gate plates, and smooth discharging can be guaranteed; and meanwhile, the flashboard is detachably connected, so that the flashboard is convenient to replace after being abraded.

Description

Technical Field

[0001] The utility model relates to the technical field of feeding devices, in particular to a hopper blanking control mechanism. Background Art

[0002] In the process of ore processing, the transfer of ore materials is involved. The ore materials need to be unloaded from the hopper onto the belt conveyor and then transported to the next process by the belt conveyor. Generally, a chute is connected to the discharge port of the hopper, and the ore materials are transferred to the belt of the belt conveyor through the chute. The application of this solution brings the problem that when the belt conveyor fails or is under maintenance, only the ore materials in the hopper can be emptied, and the ore materials on the belt need to be manually cleaned, and then the fault troubleshooting and maintenance can be carried out. This requires a large amount of manpower and greatly affects the fault handling time and subsequent on-site production work.

[0003] The prior art such as the electro-hydraulic flat plate feeding device with the application number CN200820217910.5 includes a fixed frame arranged below the bin and parallel to the discharge port. Taking the fixed frame as the sliding guide rail, a flat gate that can reciprocate on the fixed frame is arranged. Different positions of the flat gate correspond to different opening degrees of the discharge port; on one side of the fixed frame, an electro-hydraulic push rod is arranged, and the telescopic electro-hydraulic push rod drives the flat gate to reciprocate on the fixed frame; in the prior art, the flat gate is made of channel steel plate, and the fixed frame as the sliding guide rail of the flat gate is also a C-shaped chute in cross-section. The following problems exist in use: 1. During use, due to a large amount of slag and dust at the site, the slag and dust are easy to enter the C-shaped chute, causing wear to the sliding parts, which will cause the problem of unsmooth sliding of the flat gate; 2. After long-term use, the flat gate is prone to wear, involving the problem of regular replacement, and the prior art is not convenient for replacing the gate; 3. Dust will accumulate on the piston rod, which may cause the piston rod to be stuck. Summary of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide a hopper blanking control mechanism.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A hopper blanking control mechanism includes a hopper. A fixed frame is arranged on the lower side of the discharge port of the hopper. On the left and right sides of the fixed frame, an electric push rod is arranged respectively. The end of the piston rod of the electric push rod is detachably connected with a gate plate, and the gate plate is slidably connected in the fixed frame; the two electric push rods act synchronously to drive the gate plate to move towards or away from each other to control the opening degree of the discharge port.

[0007] The utility model adopting the above technical solution, compared with the prior art, its prominent feature is:

[0008] Since the hopper is in a bucket shape, the discharge at the center of the discharge port is relatively smooth. In the prior art, there is a single-side gate plate. When the opening degree of the discharge port is less than one-half, the ore material discharges from the side of the hopper, which may cause problems such as unsmooth discharge. In this application, two gate plates are symmetrically arranged about the center of the discharge port. Regardless of the size of the opening between the two gate plates, the center position of the hopper is the discharge point, which can ensure smooth discharge. At the same time, the gate plates are detachably connected, and it is convenient to replace them after the gate plates are worn.

[0009] As a preference, a further technical solution of the present utility model is as follows:

[0010] Preferably, the detachable connection structure between the piston rod and the gate plate is that a first joint is arranged at the front end of the piston rod, and a second joint is arranged on the side of the gate plate connected to the piston rod; a plug is arranged on the first joint, and a first long hole penetrating the plug is arranged in the plug; a slot corresponding to the plug is arranged on the second joint, and a second long hole penetrating the slot is arranged on the second joint; a connecting rod is further included, and the longitudinal sections of the connecting rod, the first long hole, and the second long hole are all rectangular; after the plug is inserted into the slot, the first long hole and the second long hole are in opposite positions, the connecting rod is inserted into the first long hole and the second long hole, and the first joint and the second joint are connected and fixed; the first joint and the second joint are quickly connected through the rectangular connecting rod; it is convenient to quickly disassemble and assemble the gate plate.

[0011] Preferably, on each of the two sides where the inner side of the fixing frame is slidably connected to the gate plate, a V-shaped guide rail is provided. Corresponding to the V-shaped guide rail, a V-shaped roller is rotatably connected to the lower side of the gate plate. The gate plate is slidably connected to the V-shaped guide rail of the mounting frame through the V-shaped roller; firstly, the V-shaped roller is arranged on the lower side of the gate plate and is not easy to enter slag and dust. Secondly, through the cooperation of the V-shaped roller and the V-shaped guide rail, stable sliding connection between the gate plate and the fixing frame can be achieved.

[0012] Preferably, a rotating shaft is arranged on the gate plate, and a sealed bearing is arranged on the rotating shaft. The V-shaped roller is rotatably connected to the rotating shaft through the sealed bearing; it is avoided that slag and dust enter the bearing, affecting the rotation of the V-shaped roller.

[0013] Preferably, the opposite sides of the gate plates are blade parts; when the two gate plates are closed, the slag in the middle can be cut off, preventing the ore material from getting stuck between the two gate plates when the two gate plates are closed.

[0014] Preferably, a dust-proof sleeve is provided on each of the left and right sides of the fixing frame corresponding to each electric push rod. An activity hole for the piston rod to stretch is provided at the front end of the dust-proof sleeve; the electric push rod is fixedly connected to the outer side of the fixing frame. The piston rod of the electric push rod penetrates through the side wall of the fixing frame and the dust-proof sleeve and passes out through the activity hole of the dust-proof sleeve. A sliding sealing ring is arranged between the piston rod and the activity hole; it is avoided that dust accumulates on the piston rod and dust enters the electric control part of the electric push rod, resulting in circuit failures. Description of the Drawings

[0015] Figure 1It is a schematic structural diagram of the hopper blanking control mechanism in an embodiment of the present utility model;

[0016] Figure 2 It is a schematic bottom view structural diagram of the hopper blanking control mechanism in an embodiment of the present utility model;

[0017] Figure 3 Is Figure 2 The sectional view structural diagram at A-A in

[0018] Figure 4 It is a schematic side view structural diagram of the hopper blanking control mechanism in an embodiment of the present utility model;

[0019] Figure 5 Is Figure 4 The sectional view structural diagram at B-B in

[0020] Figure 6 Is Figure 5 The enlarged structural diagram at C in

[0021] Figure 7 It is a schematic connection structural diagram of the gate plate and the electric push rod in an embodiment of the present utility model.

[0022] Explanation of reference numerals: 1, hopper; 2, fixed frame; 3, electric push rod; 301, piston rod; 4, V-shaped guide rail; 5, dust-proof sleeve; 6, first joint; 7, second joint; 8, gate plate; 801, cutting edge; 9, V-shaped roller; 10, rotating shaft; 11, connecting bolt; 12, connecting rod. Detailed implementation manners

[0023] The present utility model will be further described below in conjunction with specific embodiments. The purpose is only to better understand the content of the present utility model. Therefore, the examples given do not limit the protection scope of the present utility model.

[0024] As Figure 1 To Figure 7 As shown, this embodiment provides a hopper blanking control mechanism, including a hopper 1. A connecting plate is arranged on the lower side of the discharge port of the hopper 1. The connecting plate is provided with bolt holes. The fixed frame 2 is connected to the connecting plate through the connecting bolt 11. The fixed frame 2 is a rectangular frame. On the left and right sides of the fixed frame 2, an electric push rod 3 is arranged respectively. The end of the piston rod 301 of the electric push rod 3 is detachably connected with a gate plate 8. The gate plate 8 is slidably connected in the fixed frame 2; the two electric push rods 3 act synchronously to drive the gate plate 8 to move towards or away from each other to control the opening degree of the discharge port.

[0025] The detachable connection structure between the piston rod 301 and the gate 8 is specifically as follows. A first joint 6 is provided at the front end of the piston rod 301. A plug is provided on the first joint 6, and a first long hole penetrating the plug is provided in the plug. On the side of the gate 8 connected to the piston rod 301, a second joint 7 is provided. A slot corresponding to the plug is provided on the second joint 7, and a second long hole penetrating the slot is provided on the second joint 7. It further includes a connecting rod 12. The longitudinal cross-sections of the connecting rod 12, the first long hole, and the second long hole are all rectangular. After the plug is inserted into the slot, the positions of the first long hole and the second long hole are opposite, and the connecting rod 12 is inserted into the first long hole and the second long hole, and the first joint 6 and the second joint 7 are connected and fixed. When the gate 8 needs to be replaced, a thin rod with a size smaller than the second long hole is used to push out the connecting rod 12, realizing the quick disassembly and connection between the gate 8 and the piston rod 301, which is convenient for replacing the gate 8.

[0026] As Figure 1 , Figure 3 shown, the specific sliding connection structure between the gate 8 and the fixing frame 2 is that on each of the two sides of the inner side of the fixing frame 2 that are slidably connected to the gate 8, a V-shaped guide rail 4 is provided. Corresponding to the V-shaped guide rail 4, a V-shaped roller 9 is rotatably connected to the lower side of the gate 8. The gate 8 is slidably connected to the V-shaped guide rail 4 of the mounting frame through the V-shaped roller 9. The V-shaped guide rail 4 is an outwardly convex structure, which is not easy to accumulate dust and is convenient for cleaning, and there is no cleaning dead angle during cleaning. At the same time, the V-shaped roller 9 is arranged on the lower side of the gate 8, and it is not easy for slag and dust to enter.

[0027] The specific sliding connection structure between the V-shaped roller 9 and the gate 8 is that a rotating shaft 10 is provided on the gate 8, a sealing bearing is provided on the rotating shaft 10, and the V-shaped roller 9 is rotatably connected to the rotating shaft 10 through the sealing bearing; it can prevent powder, dust, and slag from entering the bearing interior and affecting the rotation of the V-shaped roller 9.

[0028] As Figure 6 shown, the opposite sides of the gate 8 are blade parts 801; thus, when the two gates 8 are closed, the slag in the middle can be cut off, preventing the ore from getting stuck between the two gates 8 when the two gates 8 are closed.

[0029] As Figure 2 , Figure 5 shown, on the left and right sides of the fixing frame 2, a dust-proof sleeve 5 is provided corresponding to each electric push rod 3. An activity hole for the piston rod 301 to expand and contract is provided at the front end of the dust-proof sleeve 5. The electric push rod 3 is fixedly connected to the outer side of the fixing frame 2. The piston rod 301 of the electric push rod 3 penetrates the side wall of the fixing frame 2 and the dust-proof sleeve 5 and passes out through the activity hole of the dust-proof sleeve 5. A sliding sealing ring is provided between the piston rod 301 and the activity hole; it can prevent dust from accumulating on the piston rod 301 and prevent dust from entering the electric control part of the electric push rod 3, resulting in circuit failures.

[0030] The above are only the preferred embodiments of the present utility model that can be implemented, and do not limit the scope of rights of the present utility model. Any equivalent changes made by using the content of the specification and drawings of the present utility model are included within the scope of rights of the present utility model.

Claims

1. A blanking control mechanism for a hopper (1), comprising a hopper (1), and a fixing frame (2) is arranged on the lower side of the discharge port of the hopper (1), characterized in that: On the left and right sides of the fixed frame (2), an electric push rod (3) is provided respectively. The end of the piston rod (301) of the electric push rod (3) is detachably connected with a gate plate (8), and the gate plate (8) is slidably connected in the fixed frame (2); the two electric push rods (3) act synchronously to drive the gate plate (8) to move towards or away from each other to control the opening degree of the discharge port.

2. The hopper (1) blanking control mechanism according to claim 1, characterized in that: The detachable connection structure between the piston rod (301) and the gate plate (8) is that a first joint (6) is provided at the front end of the piston rod (301), and a second joint (7) is provided on the side of the gate plate (8) connected to the piston rod (301); a plug is provided on the first joint (6), and a first long hole penetrating the plug is provided in the plug; a slot corresponding to the plug is provided on the second joint (7), and a second long hole penetrating the slot is provided on the second joint (7); It further includes a connecting rod (12), and the longitudinal sections of the connecting rod (12), the first long hole and the second long hole are all rectangular; After the plug is inserted into the slot, the positions of the first long hole and the second long hole are opposite, the connecting rod (12) is inserted into the first long hole and the second long hole, and the first joint (6) and the second joint (7) are fixedly connected.

3. The hopper (1) blanking control mechanism according to claim 1, characterized in that: On both sides of the inner side of the fixed frame (2) that are slidably connected to the gate plate (8), a V-shaped guide rail (4) is provided respectively. A V-shaped roller (9) is rotatably connected to the lower side of the gate plate (8) corresponding to the V-shaped guide rail (4), and the gate plate (8) is slidably connected to the V-shaped guide rail (4) of the mounting frame through the V-shaped roller (9).

4. The hopper (1) blanking control mechanism according to claim 3, characterized in that: A rotating shaft (10) is provided on the gate plate (8), a sealing bearing is provided on the rotating shaft (10), and the V-shaped roller (9) is rotatably connected to the rotating shaft (10) through the sealing bearing.

5. The hopper (1) blanking control mechanism according to claim 1, characterized in that: The side where the gate plates (8) face each other is a blade part (801).

6. The hopper (1) blanking control mechanism according to claim 1, characterized in that: On the left and right sides of the fixed frame (2), a dust-proof sleeve (5) is provided corresponding to each electric push rod (3). An activity hole for the piston rod (301) to stretch is provided at the front end of the dust-proof sleeve (5); the electric push rod (3) is fixedly connected to the outer side of the fixed frame (2), and the piston rod (301) of the electric push rod (3) penetrates through the side wall of the fixed frame (2) and the dust-proof sleeve (5) and passes out through the activity hole of the dust-proof sleeve (5), and a sliding sealing ring is provided between the piston rod (301) and the activity hole.

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