Anti-blocking structure for conical hopper part of coal bunker of coal feeder

Abstract

The utility model relates to the technical field of coal feeders, in particular to an anti-blocking structure for a coal bunker conical hopper of a coal feeder. The coal plough comprises an oval conical hopper, the circumferential side of the oval conical hopper is fixedly connected with a bottom frame, the circumferential inner wall of the oval conical hopper is slidably connected with two mounting rods, the two mounting rods movably penetrate through the circumferential side of the oval conical hopper, and the two sides of the two mounting rods are fixedly connected with a plurality of coal plough teeth. Two first air cylinders are fixedly connected to the circumferential sides of the two oval conical hoppers, connecting blocks are fixedly connected to one sides of the two mounting rods, piston rods of the two first air cylinders are fixed to the two connecting blocks correspondingly, a plurality of cutting knives are slidably arranged on one sides of the two mounting rods correspondingly, and cutting mechanisms are arranged on the two mounting rods correspondingly; and the two groups of cutting mechanisms are respectively connected with the plurality of cutting knives, so that the coal can be dredged, and the condition that the coal is blocked at the discharge hole is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of coal feeders, in particular to an anti-blocking structure at a cone bucket of a coal bin of a coal feeder. Background Art

[0002] A mechanical device that can accurately adjust the coal feeding amount of the coal mill according to the load requirements. It is arranged between the raw coal hopper and the coal mill. In the direct-blowing pulverizing system, the coal feeding amount is directly adapted to the boiler load. There are many types of coal feeders, including volumetric and gravity types according to their structural characteristics and working principles.

[0003] When the coal feeder is in use, when the coal falls in the coal bunker of the coal feeder, if the coal flow is too large, due to gravity, the coal will be squeezed to the discharge port of the coal bunker, which may easily cause coal blockage at the discharge port of the coal bunker, making it impossible to continue to transport the coal, affecting production and use. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide an anti-blocking structure for the cone bucket of a coal bunker of a coal feeder, which has the effect of dredging the coal at the coal bunker discharge port and reducing the occurrence of coal blockage.

[0005] The above technical objectives of the utility model are achieved through the following technical solutions:

[0006] A coal feeder coal bin cone bucket anti-blocking structure comprises an elliptical cone bucket, a base frame is fixedly connected to the circumferential side of the elliptical cone bucket, two mounting rods are slidably connected to the circumferential inner wall of the elliptical cone bucket, and the two mounting rods are movably passed through the circumferential side of the elliptical cone bucket, a plurality of coal plow teeth are fixedly connected to both sides of the two mounting rods, two first cylinders are fixedly connected to the circumferential sides of the two elliptical cone buckets, one side of the two mounting rods is fixedly connected to a connecting block, the piston rods of the two first cylinders are respectively fixed to the two connecting blocks, a plurality of cutting knives are slidably provided on one side of the two mounting rods, a cutting mechanism is provided on the two mounting rods, and the two groups of cutting mechanisms are respectively connected to the plurality of cutting knives.

[0007] By adopting the above technical solution, the mounting rod, coal plow teeth, cutting knife, elliptical cone bucket, base frame, first cylinder and connecting block can drive the mounting rod to move up and down, thereby driving the coal plow teeth and cutting knife to move up and down, and the coal can be unblocked to prevent blockage.

[0008] In a preferred example, the utility model can be further configured as follows: each group of the cutting mechanisms includes a rotating groove, a rotating disk, a motor, a pull rod, a sliding groove, a plurality of connecting rods, a connecting groove and a plurality of sliders, the rotating groove is opened in the mounting rod, the connecting groove is opened on one side of the mounting rod, a side wall of the connecting groove is opened with a sliding groove, the plurality of sliders are slidably connected in the sliding groove, the plurality of cutting knives are respectively fixedly connected to one side of the plurality of sliders, the plurality of connecting rods are respectively fixedly connected between the plurality of sliders, the pull rod is hinged to the upper end of the uppermost slider, and the pull rod movably passes through the inner bottom wall of the rotating groove, the motor is fixedly connected to one side wall of the rotating groove, the rotating disk is fixedly connected to the circumferential side of the motor output end, and the pull rod is hinged at one side edge of the rotating disk.

[0009] By adopting the above technical solution, the cutting mechanism can drive the cutting knife to move up and down, and can move and cut the coal on the side, so that a gap appears in the elliptical cone bucket, allowing the coal to fall downward.

[0010] In a preferred example, the utility model can be further configured as follows: two round rods are fixedly connected between the inner top wall and the inner bottom wall of the sliding groove, and a plurality of the sliding blocks are respectively slidably connected to the circumferential sides of the two round rods.

[0011] By adopting the above technical solution, the round rod and the slider are slidably matched, which can improve the movement stability of the slider.

[0012] In a preferred example, the utility model can be further configured as follows: two plug-in doors are slidably provided at the lower end of the elliptical cone bucket, two mounting plates are fixedly connected between the side walls of the base frame, and pushing mechanisms are provided on the two mounting plates, and the pushing mechanisms are respectively connected to the two plug-in doors.

[0013] By adopting the above technical solution, the sliding door, the mounting plate and the pushing mechanism cooperate to control the falling flow of coal.

[0014] In a preferred example, the utility model can be further configured as follows: the pushing mechanism includes two second cylinders, the two second cylinders are respectively fixedly connected to the upper ends of the two mounting rods, and the piston rods of the two second cylinders are respectively fixed to the circumferential sides of the two sliding doors.

[0015] By adopting the above technical solution, the pushing mechanism can drive the plug door to open and close, which is convenient for flow control.

[0016] In a preferred example, the utility model can be further configured as follows: the pushing mechanism also includes four fixed blocks and two limit rods, the four fixed blocks are respectively fixedly connected to the upper ends of the two mounting plates, the two limit rods are respectively fixedly connected between the four fixed blocks, and the two plug-in doors are both slidably connected to the circumferential sides of the two limit rods.

[0017] By adopting the above technical solution, the limiting rod and the plug-in door are slidably matched, which can improve the movement stability of the plug-in door.

[0018] In a preferred example, the utility model can be further configured as follows: a circumferential side of the elliptical cone bucket is fixedly connected to a side bracket, and an air cannon is installed on the upper end of the side bracket.

[0019] By adopting the above technical solution, the air cannon can provide a driving force into the elliptical cone bucket, thereby improving the anti-blocking property of the elliptical cone bucket.

[0020] In summary, the present invention includes at least one of the following beneficial technical effects:

[0021] 1. An installation rod, a coal plowing tooth, a cutting knife, an elliptical cone bucket, a base frame, a first cylinder and a connecting block are provided. When the coal falls in the elliptical cone bucket, the first cylinder is started, and the piston rod of the first cylinder pushes the connecting block to move, and the connecting block pulls the installation rod to move, which can drive the installation rod to move up and down along the inner wall of the elliptical cone bucket, thereby driving the coal plowing tooth and the cutting knife to move up and down, which can dredge the coal and effectively reduce the occurrence of coal blockage at the discharge port.

[0022] 2. A cutting mechanism, a mounting rod and a cutting knife are provided. The motor is started, and the output end of the motor drives the rotating disk to rotate, the rotating disk drives the pull rod to move, the pull rod pulls the slider to move up and down, the slider can drive the cutting knife to move up and down, and the cutting knife can move with the movement of the mounting rod and can also move by itself to cut materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a stereogram of this embodiment;

[0024] Figure 2 This embodiment Figure 1 A partial enlarged view of the middle A;

[0025] Figure 3 is a three-dimensional cross-sectional view of this embodiment;

[0026] Figure 4 This embodiment Figure 3 A partial enlarged view of point B in the middle.

[0027] In the figure, 1, side bracket; 2, elliptical cone bucket; 3, base frame; 4, mounting rod; 5, plow coal teeth; 6, first cylinder; 7, connecting block; 8, air cannon; 9, mounting plate; 10, pushing mechanism; 1001, second cylinder; 1002, fixing block; 1003, limiting rod; 11, plug-in door; 12, cutting knife; 13, cutting mechanism; 1301, rotating groove; 1302, rotating disk; 1303, motor; 1304, pull rod; 1305, sliding groove; 1306, connecting rod; 1307, round rod; 1308, slider; 1309, connecting groove. DETAILED DESCRIPTION

[0028] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0029] Reference Figure 1-4 The utility model discloses a coal feeder coal bunker cone bucket anti-blocking structure, comprising an elliptical cone bucket 2, a base frame 3 is fixedly connected to the circumferential side of the elliptical cone bucket 2, two mounting rods 4 are slidably connected to the circumferential inner wall of the elliptical cone bucket 2, and the two mounting rods 4 are movably connected to the circumferential side of the elliptical cone bucket 2, a plurality of plow coal teeth 5 are fixedly connected to both sides of the two mounting rods 4, two first cylinders 6 are fixedly connected to the circumferential sides of the two elliptical cone buckets 2, one side of the two mounting rods 4 is fixedly connected to a connecting block 7, and the piston rods of the two first cylinders 6 are respectively It is fixed with two connecting blocks 7, and a plurality of cutting knives 12 are slidably provided on one side of the two mounting rods 4. A cutting mechanism 13 is provided on the two mounting rods 4, and the two sets of cutting mechanisms 13 are respectively connected to the plurality of cutting knives 12. When the coal falls in the elliptical cone bucket 2, the first cylinder 6 is started, and the piston rod of the first cylinder 6 pushes the connecting block 7 to move, and the connecting block 7 pulls the mounting rod 4 to move, which can drive the mounting rod 4 to move up and down along the inner wall of the elliptical cone bucket 2, thereby driving the coal plow teeth 5 and the cutting knives 12 to move up and down, and the coal can be dredged to prevent blockage.

[0030] Each set of cutting mechanism 13 includes a rotating groove 1301, a rotating disk 1302, a motor 1303, a pull rod 1304, a sliding groove 1305, a plurality of connecting rods 1306, a connecting groove 1309 and a plurality of sliders 1308. The rotating groove 1301 is arranged in the mounting rod 4, the connecting groove 1309 is arranged on one side of the mounting rod 4, a sliding groove 1305 is arranged on one side wall of the connecting groove 1309, a plurality of sliders 1308 are all slidably connected in the sliding groove 1305, a plurality of cutting knives 12 are respectively fixedly connected to one side of the plurality of sliders 1308, a plurality of connecting rods 1306 are respectively fixedly connected between the plurality of sliders 1308, a pull rod 1304 is hinged to the upper end of the uppermost slider 1308, and the pull rod 1304 movably passes through the inner bottom wall of the rotating groove 1301. The connecting groove between the groove 1301 and the sliding groove 1305 has a larger opening, and the pull rod 1304 slides in the groove. The motor 1303 is fixedly connected to a side wall of the rotating groove 1301, and the rotating disk 1302 is fixedly connected to the circumferential side of the output end of the motor 1303. The pull rod 1304 is hinged at one side edge of the rotating disk 1302. The motor 1303 is started, and the output end of the motor 1303 drives the rotating disk 1302 to rotate, and the rotating disk 1302 drives the pull rod 1304 to move. The pull rod 1304 pulls the slider 1308 up and down, and the slider 1308 can drive the cutting knife 12 to move up and down. While the cutting knife 12 moves with the mounting rod 4, it can also move by itself to cut materials, and can move and cut the coal on the side, so that a gap appears in the elliptical cone bucket 2, allowing the coal to fall down.

[0031] Two round rods 1307 are fixedly connected between the inner top wall and the inner bottom wall of the sliding groove 1305, and multiple sliders 1308 are respectively slidably connected to the circumferential sides of the two round rods 1307. The round rods 1307 and the sliders 1308 are slidably matched to improve the movement stability of the sliders 1308.

[0032] Two plug-in doors 11 are slidingly provided at the lower end of the elliptical cone bucket 2, and two mounting plates 9 are fixedly connected between the side walls of the base frame 3. A pushing mechanism 10 is provided on the two mounting plates 9, and the pushing mechanism 10 is respectively connected to the two plug-in doors 11. The plug-in doors 11, the mounting plates 9 and the pushing mechanism 10 cooperate to control the falling flow rate of coal.

[0033] The pushing mechanism 10 includes two second cylinders 1001, which are respectively fixedly connected to the upper ends of the two mounting rods 4, and the piston rods of the two second cylinders 1001 are respectively fixed to the circumferential sides of the two plug-in doors 11. The pushing mechanism 10 can drive the plug-in doors 11 to open and close, which is convenient for flow control. The pushing mechanism 10 also includes four fixed blocks 1002 and two limit rods 1003. The four fixed blocks 1002 are respectively fixedly connected to the upper ends of the two mounting plates 9, and the two limit rods 1003 are respectively fixedly connected between the four fixed blocks 1002. The two plug-in doors 11 are both slidably connected to the circumferential sides of the two limit rods 1003. The limit rods 1003 and the plug-in doors 11 slide in cooperation, which can improve the movement stability of the plug-in doors 11. Start the second cylinder 1001, and the piston rod of the second cylinder 1001 pushes the plug-in door 11 to move, which can control the size of the outlet below the elliptical cone bucket 2.

[0034] The circumferential side of the elliptical cone bucket 2 is fixedly connected with a side bracket 1, and an air cannon 8 is installed on the upper end of the side bracket 1. The air cannon 8 can provide a driving force into the elliptical cone bucket 2, thereby improving the anti-blocking property of the elliptical cone bucket 2.

[0035] The implementation principle of the above embodiment is: when the coal falls in the elliptical cone bucket 2, the first cylinder 6 is started, and the piston rod of the first cylinder 6 pushes the connecting block 7 to move, and the connecting block 7 pulls the mounting rod 4 to move, which can drive the mounting rod 4 to move up and down along the inner wall of the elliptical cone bucket 2, thereby driving the coal plow teeth 5 and the cutting knife 12 to move up and down, and the coal can be cleared to prevent blockage.

[0036] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0037] The embodiments of this specific implementation method are all preferred embodiments of the utility model, and are not intended to limit the protection scope of the utility model. Therefore, all equivalent changes made based on the structure, shape, and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A coal feeder coal bunker cone bucket anti-blocking structure, comprising an elliptical cone bucket (2), characterized in that: The circumferential side of the elliptical cone bucket (2) is fixedly connected to a base frame (3); the circumferential inner wall of the elliptical cone bucket (2) is slidably connected to two mounting rods (4), and the two mounting rods (4) are movably connected to the circumferential side of the elliptical cone bucket (2); a plurality of coal plow teeth (5) are fixedly connected to both sides of the two mounting rods (4); the circumferential sides of the two elliptical cone buckets (2) are fixedly connected to two first cylinders (6); one side of the two mounting rods (4) is fixedly connected to a connecting block (7); the piston rods of the two first cylinders (6) are respectively fixed to the two connecting blocks (7); a plurality of cutting knives (12) are slidably provided on one side of the two mounting rods (4); a cutting mechanism (13) is provided on the two mounting rods (4), and the two groups of cutting mechanisms (13) are respectively connected to the plurality of cutting knives (12).

2. The anti-blocking structure of the cone bucket of the coal bunker of a coal feeder according to claim 1 is characterized by: Each set of the cutting mechanism (13) comprises a rotating groove (1301), a rotating disk (1302), a motor (1303), a pull rod (1304), a sliding groove (1305), a plurality of connecting rods (1306), a connecting groove (1309) and a plurality of sliding blocks (1308), wherein the rotating groove (1301) is provided in the mounting rod (4), the connecting groove (1309) is provided on one side of the mounting rod (4), a sliding groove (1305) is provided on one side wall of the connecting groove (1309), the plurality of sliding blocks (1308) are slidably connected in the sliding groove (1305), and the plurality of cutting mechanisms (1301) are provided in a plurality of sliding blocks (1308) and a plurality of connecting rods (1306). The knife (12) is respectively fixedly connected to one side of a plurality of sliders (1308), a plurality of connecting rods (1306) are respectively fixedly connected between the plurality of sliders (1308), the pull rod (1304) is hinged to the upper end of the uppermost slider (1308), and the pull rod (1304) movably passes through the inner bottom wall of the rotating groove (1301), the motor (1303) is fixedly connected to a side wall of the rotating groove (1301), the rotating disk (1302) is fixedly connected to the circumferential side of the output end of the motor (1303), and the pull rod (1304) is hinged to a side edge of the rotating disk (1302).

3. The anti-blocking structure of the cone bucket of the coal bunker of a coal feeder according to claim 2 is characterized by: Two round rods (1307) are fixedly connected between the inner top wall and the inner bottom wall of the sliding groove (1305), and the plurality of sliding blocks (1308) are respectively slidably connected to the circumferential sides of the two round rods (1307).

4. The anti-blocking structure of the cone bucket of the coal bunker of a coal feeder according to claim 1 is characterized by: Two plug-in doors (11) are slidably provided at the lower end of the elliptical cone bucket (2), two mounting plates (9) are fixedly connected between the side walls of the base frame (3), a pushing mechanism (10) is provided on the two mounting plates (9), and the pushing mechanism (10) is respectively connected to the two plug-in doors (11).

5. The anti-blocking structure of the cone bucket of the coal bunker of a coal feeder according to claim 4 is characterized by: The pushing mechanism (10) comprises two second cylinders (1001), the two second cylinders (1001) being respectively fixedly connected to the upper ends of two mounting rods (4), and the piston rods of the two second cylinders (1001) being respectively fixed to the circumferential sides of the two sliding plate doors (11).

6. The anti-blocking structure of the cone bucket of the coal bunker of a coal feeder according to claim 5 is characterized by: The pushing mechanism (10) further comprises four fixed blocks (1002) and two limiting rods (1003), wherein the four fixed blocks (1002) are respectively fixedly connected to the upper ends of the two mounting plates (9), the two limiting rods (1003) are respectively fixedly connected between the four fixed blocks (1002), and the two plug-in doors (11) are both slidably connected to the circumferential sides of the two limiting rods (1003).

7. The anti-blocking structure of the cone bucket of the coal bunker of a coal feeder according to claim 1 is characterized by: A side bracket (1) is fixedly connected to the circumferential side of the elliptical cone bucket (2), and an air cannon (8) is installed at the upper end of the side bracket (1).

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