Novel rolling vibration type coal screening device capable of automatically adjusting speed

Abstract

The utility model discloses a novel rolling vibration type coal screening device capable of automatically adjusting speed. The novel rolling vibration type coal screening device comprises a filter screen, an optical shaft is fixedly connected in the filter screen, the axis of the filter screen and the axis of the optical shaft are collinear, the filter screen is connected with a rack through a measuring assembly, the filter screen achieves dynamic speed change through a power assembly, and an inclined included angle is formed between the filter screen and the ground. The measuring assembly comprises a transmission part and a supporting part, the two ends of the optical shaft are rotationally connected to the transmission part and the supporting part respectively, driven parts are symmetrically connected to the bottom end of the transmission part, sliding rods are connected to the driven parts, and the sliding rods are connected with the rack through sleeves; coal mines accumulated in the filter screen are measured in real time through the measuring assembly connected to the filter screen, the height of the filter screen is changed according to the number of the coal mines, and under the condition that the filter screen is kept connected with the power assembly, the filter screen can achieve the function of dynamically changing the speed according to the accumulation amount of the coal mines.

Description

Technical Field

[0001] The utility model relates to the field of coal mine production devices, in particular to a novel rolling vibration type coal screening device capable of automatically adjusting speed. Background Art

[0002] The coal screening device uses a self-rotating cylindrical filter to screen the coal according to different diameters in a centrifugal manner. In the prior art, the rotation speed of the filter is kept constant, so that the screening speed of the filter for the coal is kept constant. The coal in the filter is accumulated. The above problem is usually solved by reducing the input of coal or changing the rotation speed of the filter. The common filter speed is determined by visually judging the amount of coal accumulation in the filter, and manually adjusting the rotation speed of the motor to achieve the change of the rotation speed of the filter. The screening device needs to operate for a long time. The manual visual change method cannot change the rotation of the filter in time and increases the workload of workers, and cannot achieve dynamic changes in the rotation speed of the filter. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, the utility model provides a novel rolling vibration type coal screening device with automatic speed regulation, which can realize dynamic changes in the filter screen rotation speed.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions: a new type of automatically speed-adjustable rolling vibration coal screening device includes a filter screen, an optical axis is fixedly connected to the filter screen, the axis center line of the filter screen and the axis center line of the optical axis are arranged colinearly, the filter screen is connected to the frame through a measuring component, the filter screen realizes dynamic speed change through a power component, and there is an inclination angle between the filter screen and the ground.

[0005] As an optimal technical solution for a new type of automatically speed-adjustable rolling vibration coal screening device of the utility model, the measuring component includes a transmission part and a supporting part, the two ends of the optical axis are rotatably connected to the transmission part and the supporting part respectively, the bottom end of the transmission part is symmetrically connected to the driven part, the driven part is connected to a sliding rod, and the sliding rod is connected to the frame through a sleeve.

[0006] As a preferred technical solution of a novel rolling vibration type coal screening device with automatic speed regulation of the utility model, a compression spring is sleeved on the slide bar, and the two ends of the compression spring are respectively connected to the sleeve and the driven part.

[0007] As a preferred technical solution of a novel rolling vibration type coal screening device with automatic speed regulation of the utility model, both ends of the support part are connected with a driven part which is the same as the driven part.

[0008] As an optimal technical solution for a new type of automatically speed-adjustable rolling vibration coal screening device of the utility model, the power assembly includes a driving motor, a friction cone wheel is connected to the driving motor, a friction wheel is frictionally transmitted on the friction cone wheel, the friction wheel is mounted on a worm, a worm wheel is meshed on the worm, the worm wheel is mounted on an optical axis, and the worm is rotatably connected to the transmission part.

[0009] As a preferred technical solution of a novel rolling vibration type coal screening device with automatic speed regulation of the utility model, the driving motor is installed on the frame through a cylinder.

[0010] As a preferred technical solution of a novel rolling vibration type coal screening device with automatic speed regulation of the utility model, filter holes of different diameters are arranged on the filter screen.

[0011] As a preferred technical solution of a novel rolling vibration type coal screening device with automatic speed regulation of the utility model, a collecting part is detachably connected to the frame.

[0012] As a preferred technical solution of a novel automatic speed-adjustable rolling vibration coal screening device of the utility model, one or more partitions are connected to the collecting part.

[0013] As an optimal technical solution for a new type of automatically speed-adjustable rolling vibration coal screening device of the utility model, the inclination angle is degrees.

[0014] Compared with the prior art, the utility model can achieve the following beneficial effects:

[0015] The measuring component connected to the filter can measure the coal accumulated in the filter in real time, and the height of the filter can be changed according to the amount of coal. When the filter is kept connected to the power component, the filter can realize the function of dynamic speed change according to the amount of coal accumulated. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The overall structure of the utility model is shown in FIG. Figure 1 ;

[0017] Figure 2 The overall structure of the utility model is shown in FIG. Figure 2 ;

[0018] Figure 3 This is a schematic diagram of the connection between the friction cone wheel and the friction wheel of the utility model;

[0019] Figure 4 It is a schematic diagram of the connection between the worm wheel and the worm of the utility model.

[0020] Among them: frame 1; fixed platform 11; sleeve 12; slide rod 13; driven part 14; transmission part 15; collecting part 2; partition 21; drive motor 3; friction cone wheel 31; cylinder 32; filter screen 4; optical axis 41; worm wheel 42; worm 43; friction wheel 44. DETAILED DESCRIPTION

[0021] The present application includes a cylindrical filter 4 for screening coal, the center of the filter 4 is hollowed out, filter holes are arranged on the filter 4 at equal intervals, the filter 4 is divided into two or more intervals according to the screening requirements, the diameters of the filter holes are different in different intervals, the diameters of the filter holes are arithmetic difference reduction or arithmetic difference increase, an optical axis 41 is arranged in the filter 4, the axis line of the optical axis 41 is arranged in line with the axis line of the filter 4, and the optical axis 41 and the filter 4 can be connected by welding, bolts and nuts according to the installation requirements; Figure 2 The filter screen 4 is installed on the frame 1 through a measuring component and the power component provides power for the rotation of the filter screen 4. The measuring component is used to change the vertical height of the filter screen 4 according to the amount of unscreened coal stored in the filter screen 4, and change the rotation speed of the filter screen 4 according to the height change of the filter screen 4, thereby dynamically changing the rotation speed of the filter screen 4. An inclined angle is set between the filter screen 4 and the frame 1, and the inclined angle is not greater than 60 degrees.

[0022] Preferably, the angle is 10 degrees. Unscreened coal is injected from the upwardly deflected end of the filter 4, so that the coal falls downward along the length of the filter 4 and is separated from the filter 4 through filter holes of different diameters. Further, when the filter 4 rotates, centrifugal force is generated to accelerate the screening speed of the filter 4 for the coal.

[0023] In order to solve the shortcomings of the prior art, the filter screen 4 is dynamically variable according to the amount of coal accumulated inside, and a power component is connected to the frame 1, such as Figure 2The power assembly shown includes a drive motor 3, which is installed on the frame 1 through a cylinder 32. A friction cone wheel 31 is connected to the output shaft of the drive motor 3, and the axis of the output shaft of the drive motor 3 is colinearly arranged with the axis of the friction cone wheel 31. The drive motor 3 provides power for the rotation of the friction cone wheel 31. A worm wheel 42 is connected to the optical axis 41, and a worm 43 is meshingly connected to the worm wheel 42. The worm 43 is connected to the measuring assembly, and a friction wheel 44 is connected to the end of the worm 43 that contacts the friction cone wheel 31. The outer surface of the friction wheel 44 is frictionally driven with the outer surface of the friction cone wheel 31. The friction cone wheel 31 is horizontally arranged, and the diameter of the friction cone wheel 31 at the end close to the filter screen 4 is smaller than the diameter at the end away from the filter screen 4 and gradually increases. During the downward movement of the friction wheel 44, the cylinder 32 drives the friction cone wheel 31 to move The frame 1 moves horizontally in the direction of the friction wheel 44, so that the friction wheel 44 always keeps in contact with the outer surface of the friction cone wheel 31 during the downward movement in the vertical direction, and the outer diameter of the outer circle in contact with the friction cone wheel 31 gradually shrinks. Under the premise that the rotation speed of the friction cone wheel 31 remains unchanged, the rotation speed of the friction wheel 44 is continuously increased. A sensor is connected to the frame 1, and the sensor is used to measure the height of the filter 4. The length of the cylinder 32 itself is controlled according to the height of the filter 4, so as to change the horizontal position of the friction cone wheel 31, ensuring that the friction cone wheel 31 and the friction wheel 44 keep in contact with the friction transmission. The filter 4 changes its own height in the vertical direction through the measuring component. During the movement of the filter 4, the worm 43 moves in the same direction to ensure that the friction cone wheel 31 as a power source always provides power to the friction wheel 44, thereby ensuring the continuous rotation of the filter 4.

[0024] like Figure 2 The measuring assembly shown in the figure includes a transmission part 15 and a support part 16, the two ends of the optical axis 41 are respectively rotatably connected to the transmission part 15 and the support part 16, the worm 43 is rotatably connected to the transmission part 15, the two ends of the transmission part 15 are symmetrically provided with a driven part 14, the driven part 14 is connected with a slide bar 13, the frame 1 is connected with a sleeve 12, the slide bar 13 is slidably connected in the sleeve 12, the slide bar 13 is sleeved with a compression spring, the two ends of the compression spring are respectively connected to the sleeve 12 and the driven part 14, the filter screen When the coal accumulated in the frame 1 reaches a preset amount, the transmission part 15 is pushed to move downward in the vertical direction. The transmission part 15 pushes the driven parts 14 at both ends to move horizontally toward the frame 1. An inclined surface is arranged at the bottom end of the transmission part 15. The same inclined surface is arranged on the end of the driven part 14 that contacts the transmission part 15, ensuring that the driven part 14 can be pushed to move horizontally during the sliding process of the transmission part 15. The driven parts 14 that are the same as the transmission part 15 are connected to both ends of the support part 16.

[0025] A collecting part 2 for collecting screened coal is installed at the top of the frame 1. The collecting part 2 is a rectangle with an open top. One or more partitions 21 are provided on the collecting part 2 to divide the collecting part 2 into multiple partitions. The intervals divided by the collecting part 2 are of the same type as the filter hole diameters on the filter screen 4 and the positions correspond one to one, so that coal of different diameters can fall into the corresponding partitions of the collecting part 2 for classified collection.

[0026] The working condition of the above structure is described below. The driving motor 3 provides the friction cone wheel 31 with continuous rotation power, and the coal to be screened is placed in the continuously rotating filter screen 4. The continuously rotating filter screen 4 screens the coal according to the screening requirements. The change in the amount of coal in the filter screen 4 causes the filter screen 4 to move dynamically in the vertical direction. During the movement of the filter screen 4, the friction wheel 44 moves along the outer surface of the friction cone wheel 31, so that the transmission ratio between the friction cone wheel 31 and the friction wheel 44 changes. The rotation speed of the friction wheel 44 is changed under the premise that the rotation speed of the friction cone wheel 31 remains unchanged, thereby changing the rotation speed of the worm 43. During the movement of the filter screen 4 in the vertical direction, the worm wheel 42 and the worm 43 always maintain a meshing state, thereby changing the rotation speed of the filter screen 4, so that the screening rate of the coal by the filter screen 4 changes dynamically. The screened coal falls into the collection part 2, and the coal of different diameters can fall into the designated position of the collection part 2 for collection according to the screening requirements.

Claims

1. A novel rolling vibration type coal screening device with automatic speed regulation, comprising a filter screen (4), an optical axis (41) being fixedly connected to the filter screen (4), the axis of the filter screen (4) being arranged colinearly with the axis of the optical axis (41), characterized in that: The filter screen (4) is connected to the frame (1) via a measuring component, the filter screen (4) achieves dynamic speed change via a power component, and there is an inclined angle between the filter screen (4) and the ground.

2. The novel automatic speed-adjustable rolling vibration coal screening device according to claim 1 is characterized in that: The measuring assembly comprises a transmission part (15) and a support part (16), the two ends of the optical axis (41) are rotatably connected to the transmission part (15) and the support part (16), respectively, the bottom end of the transmission part (15) is symmetrically connected to a driven part (14), the driven part (14) is connected to a slide bar (13), and the slide bar (13) is connected to the frame (1) via a sleeve (12).

3. The novel automatic speed-adjustable rolling vibration coal screening device according to claim 2 is characterized in that: A compression spring is sleeved on the slide rod (13), and two ends of the compression spring are respectively connected to the sleeve (12) and the driven part (14).

4. The novel automatic speed-adjustable rolling vibration coal screening device according to claim 3 is characterized in that: Both ends of the support portion (16) are connected to driven portions (14) identical to the transmission portion (15).

5. The novel automatic speed-adjustable rolling vibration coal screening device according to claim 2 is characterized in that: The power assembly comprises a drive motor (3), the drive motor (3) is connected to a friction cone wheel (31), the friction cone wheel (31) is frictionally driven with a friction wheel (44), the friction wheel (44) is mounted on a worm (43), a worm wheel (42) is meshed on the worm (43), the worm wheel (42) is mounted on the optical axis (41), and the worm (43) is rotatably connected to the transmission part (15).

6. The novel automatic speed-adjustable rolling vibration coal screening device according to claim 5 is characterized in that: The drive motor (3) is mounted on the frame (1) via a cylinder (32).

7. The novel automatic speed-adjustable rolling vibration coal screening device according to any one of claims 1 to 6, characterized in that: The filter screen (4) is provided with filter holes of different diameters.

8. The novel automatic speed-adjustable rolling vibration coal screening device according to any one of claims 1 to 6, characterized in that: The frame (1) is detachably connected to a collecting portion (2).

9. The novel automatic speed-adjustable rolling vibration type coal screening device according to claim 8 is characterized in that: The collecting portion (2) is connected to one or more partitions (21).

10. The novel automatic speed-adjustable rolling vibration coal screening device according to claim 1 is characterized in that: The tilt angle is 10 degrees.

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