Central feeder with outlet having buffering and anti-blocking functions

Abstract

The utility model discloses a center feeder with an outlet having buffering and anti-blocking functions, which relates to the technical field of center feeders and comprises a stock bin, an inner cone is arranged in an inner cavity of the stock bin, a plurality of supporting arms are fixedly mounted between the outer wall of the inner cone and the inner wall of the stock bin, and a bottom plate of the stock bin is fixedly sleeved with a discharging barrel. A discharging arm is arranged at the bottom of an inner cavity of the stock bin on the top of the discharging barrel, an anti-blocking mechanism is installed between the discharging barrel and the bottom of the stock bin, a buffering mechanism is installed at the bottom of an inner cavity of the discharging barrel, and the buffering mechanism is connected with the anti-blocking mechanism. When the discharging arm rotates, raw coal in the gap between the inner cone and the stock bin is pushed into the discharging barrel, so that the raw coal is discharged, in the discharging process, the anti-blocking mechanism scrapes the inner wall of the discharging position, raw coal bonding and blocking are avoided, meanwhile, the buffering mechanism buffers the raw coal falling into the discharging barrel, the raw coal stably falls, and the discharging efficiency is improved. And spattering caused by impact rebound is avoided.

Description

Technical Field

[0001] The utility model relates to the field of central feeders, in particular to a central feeder with an outlet having a buffering and anti-blocking function. Background Art

[0002] The center feeder can discharge the materials in the raw coal bunker according to the principle of "first in, first out". The center feeder is installed under the raw coal bunker. The raw coal falls onto the bottom plate through the annular gap between the cylindrical shell and the inner cone of the center feeder. The discharge arm rotates on the circular bottom plate, and the discharge arm moves the material on the bottom plate toward the center and is discharged from the middle circular discharge port of the bottom plate.

[0003] When the center feeder is in use, the height difference of the raw coal is large when it falls from the discharge port, and the falling force is high, which can easily lead to impact rebound after falling. At the same time, the raw coal is easy to adhere to the inner wall of the discharge port when falling from the discharge port, causing a bulge to form on the inner wall of the discharge port, affecting the falling of the raw coal from the silo and causing discharge blockage. Utility Model Content

[0004] The purpose of the utility model is to solve the problems existing in the prior art that when the center feeder is in use, the raw coal has a large height difference when falling from the discharge port, the falling force is high, and it is easy to cause impact rebound after falling. At the same time, when the raw coal falls from the discharge port, it is easy to adhere to the inner wall of the discharge port, so that a bulge is formed on the inner wall of the discharge port, which affects the falling of the raw coal from the silo and causes discharge blockage. A center feeder with a buffering and anti-blocking function at the outlet is proposed.

[0005] In order to solve the problems existing in the prior art, the utility model adopts the following technical solutions:

[0006] A central feeder with a buffering and anti-blocking function at its outlet comprises a silo, an inner cone is provided in the inner cavity of the silo, a plurality of support arms are fixedly installed between the outer wall of the inner cone and the inner wall of the silo, a discharging barrel is fixedly sleeved on the bottom plate of the silo, a discharge arm is provided at the bottom of the inner cavity of the silo at the top of the discharging barrel, an anti-blocking mechanism is installed between the discharging barrel and the bottom of the silo, a buffer mechanism is installed at the bottom of the inner cavity of the discharging barrel, and the buffer mechanism is connected to the anti-blocking mechanism.

[0007] Preferably, the bottom diameter of the inner cone is larger than the diameter of the discharge barrel, the discharge arm is an arc-shaped structure, and the height of the discharge arm is equal to the distance from the bottom of the inner cone to the bottom of the inner cavity of the silo.

[0008] Preferably, the anti-blocking mechanism includes a rotating cylinder, the top of the inner wall of the discharging cylinder is rotatably sleeved with a rotating cylinder, the top of the rotating cylinder is fixedly connected to the unloading arm, the middle outer wall of the rotating cylinder is fixedly sleeved with a gear ring, the gear ring is rotatably clamped on the inner wall of the discharging cylinder, the bottom of the silo is fixedly installed with a motor, the output shaft of the motor is fixedly sleeved with a gear, the gear rotates through one side outer wall of the discharging cylinder and engages with the gear ring, the inner wall of the discharging cylinder at the bottom of the rotating cylinder is fixedly connected to one end of a scraper, and the other end side wall of the scraper fits the inner wall of the rotating cylinder.

[0009] Preferably, the scraper is an L-shaped structure, and a cutting edge is provided on one side of the scraper close to the inner wall of the rotating cylinder. The vertical end of the scraper is slidably clamped with multiple cleaning knives, and the cleaning knives are U-shaped structures. The outer walls of the multiple cleaning knives are fixedly connected to a connecting rod, and the bottom of the connecting rod is connected to a buffer mechanism.

[0010] Preferably, the buffer mechanism includes support rods, a plurality of support rods are fixedly installed on the bottom inner wall of the discharge cylinder, a fixed cylinder is fixedly installed between the support rods, a buffer plate is slidably sleeved on the top of the fixed cylinder, a plurality of sealing cylinders are fixedly installed on the bottom of the inner cavity of the fixed cylinder, a piston is slidably clamped in the sealing cylinder, a pressure rod is fixedly installed on the top of the piston, the pressure rod slides through the sealing cylinder and is fixedly connected to the buffer plate, and a spring is installed between the piston and the bottom of the inner cavity of the sealing cylinder.

[0011] Preferably, the bottom of the connecting rod is fixedly connected to the side wall of the buffer plate, the top of the buffer plate is a conical structure, and the spring is always in a compressed state.

[0012] Preferably, a vent hole connecting the outer wall of the discharge cylinder and the inner cavity of the fixed cylinder is opened in the support rod, and an air outlet valve is fixedly sleeved on the bottom of the sealing cylinder. The air outlet valve is a one-way valve, and a small air intake hole is opened on the sealing cylinder at the air outlet valve.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. In the utility model, the motor drives the gear to rotate, and the gear drives the gear ring to rotate, so that the rotating drum rotates, and the unloading arm rotates along the axis of the silo to push the material, and the raw coal falls from the inner wall of the rotating drum. When the rotating drum rotates, the inner wall is scraped by the scraper to avoid blockage of raw materials;

[0015] 2. In the utility model, the raw material falls and impacts the buffer plate, and the buffer plate moves downward due to the impact, then the pressure rod drives the piston to move downward, at this time the spring is compressed to absorb energy, and the downward movement of the piston makes the gas at the bottom of the sealing tube quickly discharged through the air outlet valve and the air intake hole, so that the piston quickly moves downward to absorb the impact potential energy, and the raw material slides from the conical top of the buffer plate after buffering, so as to achieve the purpose of smooth material dropping, after the impact kinetic energy is absorbed, the spring releases the potential energy, at this time the piston moves upward, the air outlet valve cannot inhale air, and the bottom of the sealing tube can only inhale air slowly through the air intake hole, so that the piston moves slowly upward, and the buffer plate moves slowly upward, so as to avoid the rapid rebound of the spring causing the raw material to be bounced up when it slides from the buffer plate, further improving the stability of the material dropping, and the up and down movement of the buffer plate drives the connecting rod and the cleaning knife to move vertically, so as to achieve the purpose of cleaning the scraper. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0017] Figure 1 This is a schematic diagram of the overall structure of a central feeder with a buffer and anti-blocking function at the outlet of the utility model;

[0018] Figure 2 It is a cross-sectional structural schematic diagram of a central feeder having a buffering and anti-blocking function at its outlet according to the utility model;

[0019] Figure 3 For the utility model Figure 2 The enlarged structural diagram at A in the middle;

[0020] Figure 4 For the utility model Figure 3 The enlarged structural diagram at B in the middle;

[0021] Figure 5 For the utility model Figure 3 Enlarged structural diagram at point C in the middle.

[0022] Serial numbers in the figure: 1. silo; 2. inner cone; 3. support arm; 4. discharge barrel; 5. unloading arm; 6. anti-blocking mechanism; 61. rotating barrel; 62. gear ring; 63. motor; 64. gear; 65. scraper; 66. cleaning knife; 67. connecting rod; 7. buffer mechanism; 71. support rod; 72. fixed barrel; 73. buffer plate; 74. sealing barrel; 75. piston; 76. pressure rod; 77. spring; 8. vent hole; 9. outlet valve; 10. suction hole. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] Embodiment: This embodiment provides a central feeder with a buffer and anti-blocking function at the outlet, see Figure 1-5 Specifically, it includes a silo 1, an inner cone 2 is provided in the inner cavity of the silo 1, a plurality of supporting arms 3 are fixedly installed between the outer wall of the inner cone 2 and the inner wall of the silo 1, a discharging barrel 4 is fixedly sleeved on the bottom plate of the silo 1, a discharging arm 5 is provided at the bottom of the inner cavity of the silo 1 at the top of the discharging barrel 4, an anti-blocking mechanism 6 is installed between the discharging barrel 4 and the bottom of the silo 1, a buffer mechanism 7 is installed at the bottom of the inner cavity of the discharging barrel 4, and the buffer mechanism 7 is connected to the anti-blocking mechanism 6, when the discharging arm 5 rotates, the raw coal in the gap between the inner cone 2 and the silo 1 is pushed into the discharging barrel 4, so that the raw coal is discharged, and during the discharging, the anti-blocking mechanism 6 scrapes the inner wall of the discharging place to avoid the raw coal from sticking and clogging, and at the same time, the buffer mechanism 7 buffers the raw coal falling in the discharging barrel 4, so that it falls smoothly to avoid impact and rebound and spilling.

[0025] Reference Figure 2 The bottom diameter of the inner cone 2 is larger than the diameter of the discharge tube 4, the discharge arm 5 is an arc-shaped structure, and the height of the discharge arm 5 is equal to the distance from the bottom of the inner cone 2 to the bottom of the inner cavity of the silo 1. The arc-shaped discharge arm 5 facilitates the gradual pushing of the raw coal between the inner cone 2 and the bottom of the silo 1 to the discharge tube 4 for discharge.

[0026] Reference Figures 2 to 4The anti-blocking mechanism 6 includes a rotating cylinder 61, the top of the inner wall of the discharging cylinder 4 is rotatably sleeved with the rotating cylinder 61, the top of the rotating cylinder 61 is fixedly connected to the unloading arm 5, the middle outer wall of the rotating cylinder 61 is fixedly sleeved with a gear ring 62, the gear ring 62 is rotatably clamped on the inner wall of the discharging cylinder 4, a motor 63 is fixedly installed at the bottom of the silo 1, the output shaft of the motor 63 is fixedly sleeved with a gear 64, the gear 64 rotates through one side of the outer wall of the discharging cylinder 4 and engages with the gear ring 62, the inner wall of the discharging cylinder 4 at the bottom of the rotating cylinder 61 is fixedly connected to one end of a scraper 65, the other end side wall of the scraper 65 is in contact with the inner wall of the rotating cylinder 61, the scraper 65 is an L-shaped structure, and the scraper 65 is provided with a cutting edge on the side close to the inner wall of the rotating cylinder 61. The vertical end of the scraper 65 is slidably connected with a plurality of cleaning knives 66, and the cleaning knives 66 are of a U-shaped structure. The outer walls of the plurality of cleaning knives 66 are fixedly connected to a connecting rod 67, and the bottom of the connecting rod 67 is connected to a buffer mechanism 7. The motor 63 drives the gear 64 to rotate, and the gear 64 drives the gear ring 62 to rotate, so that the rotating cylinder 61 rotates, and the discharge arm 5 rotates along the axis of the silo 1 to push the material, and the raw coal falls from the inner wall of the rotating cylinder 61. When the rotating cylinder 61 rotates, the inner wall is scraped by the scraper 65 to avoid blockage of the raw materials. At the same time, after the raw materials fall, the buffer mechanism 7 buffers the impact kinetic energy, and the buffer mechanism 7 drives the connecting rod 67 to move up and down, so that the cleaning knife 66 vertically cleans the scraper 65 to improve the scraping effect.

[0027] Reference Figure 2 , Figure 3 and Figure 5The buffer mechanism 7 includes a support rod 71, a plurality of support rods 71 ​​are fixedly installed on the inner wall of the bottom of the discharge cylinder 4, a fixed cylinder 72 is fixedly installed between the support rods 71, a buffer plate 73 is slidably sleeved on the top of the fixed cylinder 72, and a plurality of sealing cylinders 74 are fixedly installed on the bottom of the inner cavity of the fixed cylinder 72, a piston 75 is slidably clamped in the sealing cylinder 74, a pressure rod 76 is fixedly installed on the top of the piston 75, the pressure rod 76 slides through the sealing cylinder 74 and is fixedly connected to the buffer plate 73, a spring 77 is installed between the piston 75 and the bottom of the inner cavity of the sealing cylinder 74, the bottom of the connecting rod 67 is fixedly connected to the side wall of the buffer plate 73, the top of the buffer plate 73 is a conical structure, and the spring 77 is always in a compressed state, a vent hole 8 is opened in the support rod 71 to connect the outer wall of the discharge cylinder 4 and the inner cavity of the fixed cylinder 72, and an air outlet valve 9 is fixedly sleeved on the bottom of the sealing cylinder 74, the air outlet valve 9 is a one-way valve, and a small air inlet is opened on the sealing cylinder 74 at the air outlet valve 9 The piston 75 moves up slowly, and the buffer plate 73 moves up slowly, so as to avoid the spring 77 rebounding quickly and causing the raw material to be bounced when sliding off the buffer plate 73, thereby further improving the stability of the blanking, and the up and down movement of the buffer plate 73 drives the connecting rod 67 and the cleaning knife 66 to move vertically, so as to achieve the purpose of cleaning the scraper 65.

[0028] Specifically, the working principle and operation method of the utility model are as follows: the motor 63 drives the gear 64 to rotate, and the gear 64 drives the gear ring 62 to rotate, so that the rotating cylinder 61 rotates, and the unloading arm 5 rotates along the axis of the silo 1 to push the material, and the raw coal falls from the inner wall of the rotating cylinder 61. When the rotating cylinder 61 rotates, the inner wall is scraped by the scraper 65 to avoid the blockage of the raw materials. The raw materials fall and impact the buffer plate 73. The buffer plate 73 moves downward under the impact, and the pressure rod 76 drives the piston 75 to move downward. At this time, the spring 77 is compressed to absorb energy, and the piston 75 moves downward to make the gas at the bottom of the sealing cylinder 74 quickly discharged through the outlet valve 9 and the suction hole 10, which is convenient for the activity. Plug 75 moves downward quickly to absorb the impact potential energy, and the raw material slides down from the conical top of the buffer plate 73 after being buffered, so as to achieve the purpose of smooth material dropping. After the impact kinetic energy is absorbed, the spring 77 releases the potential energy, and at this time the piston 75 moves upward, the air outlet valve 9 cannot inhale, and the bottom of the sealing cylinder 74 can only inhale slowly through the air suction hole 10, so that the piston 75 moves up slowly, and the buffer plate 73 moves up slowly, avoiding the rapid rebound of the spring 77 causing the raw material to be bounced up when sliding off the buffer plate 73, further improving the stability of the material dropping, and the up and down movement of the buffer plate 73 drives the connecting rod 67 and the cleaning knife 66 to move vertically, so as to achieve the purpose of cleaning the scraper 65.

[0029] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A central feeder with an outlet having a buffering and anti-blocking function, comprising a silo (1), characterized in that: The inner cavity of the silo (1) is provided with an inner cone (2), a plurality of support arms (3) are fixedly installed between the outer wall of the inner cone (2) and the inner wall of the silo (1), a discharge barrel (4) is fixedly sleeved on the bottom plate of the silo (1), a discharge arm (5) is provided at the bottom of the inner cavity of the silo (1) at the top of the discharge barrel (4), an anti-blocking mechanism (6) is installed between the discharge barrel (4) and the bottom of the silo (1), a buffer mechanism (7) is installed at the bottom of the inner cavity of the discharge barrel (4), and the buffer mechanism (7) is connected to the anti-blocking mechanism (6).

2. A central feeder with an outlet having a buffering and anti-blocking function according to claim 1, characterized in that: The bottom diameter of the inner cone (2) is greater than the diameter of the discharge barrel (4), the discharge arm (5) is an arc-shaped structure, and the height of the discharge arm (5) is equal to the distance from the bottom of the inner cone (2) to the bottom of the inner cavity of the silo (1).

3. A central feeder with a buffer and anti-blocking function at the outlet according to claim 1, characterized in that: The anti-blocking mechanism (6) comprises a rotating cylinder (61), the top of the inner wall of the discharging cylinder (4) is rotatably sleeved with the rotating cylinder (61), the top of the rotating cylinder (61) is fixedly connected to the discharge arm (5), the middle outer wall of the rotating cylinder (61) is fixedly sleeved with a toothed ring (62), the toothed ring (62) is rotatably clamped on the inner wall of the discharging cylinder (4), a motor (63) is fixedly installed at the bottom of the silo (1), the output shaft of the motor (63) is fixedly sleeved with a gear (64), the gear (64) rotatably penetrates one side outer wall of the discharging cylinder (4) and engages with the toothed ring (62), the inner wall of the discharging cylinder (4) at the bottom of the rotating cylinder (61) is fixedly connected to one end of a scraper (65), and the other end side wall of the scraper (65) is in contact with the inner wall of the rotating cylinder (61).

4. A central feeder with a buffer and anti-blocking function at the outlet according to claim 3, characterized in that: The scraper (65) is of an L-shaped structure, and a cutting edge is provided on one side of the scraper (65) close to the inner wall of the rotating cylinder (61). A plurality of cleaning knives (66) are slidably engaged at the vertical end of the scraper (65), and the cleaning knives (66) are of a U-shaped structure. The outer walls of the plurality of cleaning knives (66) are fixedly connected to a connecting rod (67), and the bottom of the connecting rod (67) is connected to a buffer mechanism (7).

5. A central feeder with an outlet having a buffering and anti-blocking function according to claim 4, characterized in that: The buffer mechanism (7) comprises a support rod (71), a plurality of support rods (71) are fixedly installed on the inner wall of the bottom of the discharge cylinder (4), a fixed cylinder (72) is fixedly installed between the support rods (71), a buffer plate (73) is slidably sleeved on the top of the fixed cylinder (72), a plurality of sealing cylinders (74) are fixedly installed on the bottom of the inner cavity of the fixed cylinder (72), a piston (75) is slidably clamped in the sealing cylinder (74), a pressure rod (76) is fixedly installed on the top of the piston (75), the pressure rod (76) slides through the sealing cylinder (74) and is fixedly connected to the buffer plate (73), and a spring (77) is installed between the piston (75) and the bottom of the inner cavity of the sealing cylinder (74).

6. A central feeder with a buffer and anti-blocking function at the outlet according to claim 5, characterized in that: The bottom of the connecting rod (67) is fixedly connected to the side wall of the buffer plate (73), the top of the buffer plate (73) is a conical structure, and the spring (77) is always in a compressed state.

7. A central feeder with a buffer and anti-blocking function at the outlet according to claim 5, characterized in that: The support rod (71) is provided with a vent hole (8) communicating with the outer wall of the discharge cylinder (4) and the inner cavity of the fixed cylinder (72); the bottom of the sealing cylinder (74) is fixedly sleeved with an air outlet valve (9); the air outlet valve (9) is a one-way valve; and the sealing cylinder (74) at the air outlet valve (9) is provided with a small air intake hole (10).

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