Automatic switching equipment for hopper grilles of belt conveyor

Abstract

The utility model relates to the technical field of rubber belt conveying, in particular to automatic switching equipment for hopper grilles of a rubber belt conveyor. The automatic switching equipment comprises a material injection hopper, a rack is arranged at a feeding port of the material injection hopper, a mounting frame is slidably arranged on the rack and located above the material injection hopper, and a main grille is detachably arranged on the mounting frame; a fixing piece is arranged between the mounting frame and the main grille and used for fixing the main grille to the mounting frame, and a driving piece for driving the mounting frame to slide is arranged on the rack. The automatic grid replacing device has the effect of automatically replacing the grid.

Description

Technical Field

[0001] The present application relates to the technical field of belt conveying, and in particular to an automatic switching device for a funnel grille of a belt conveyor. Background Art

[0002] In the mineral processing production such as raw material plants, sintering plants, and pelletizing plants, it is a common method to use a belt conveyor to transfer materials to multiple receiving bins. When transferring powdered materials, they are simultaneously injected into the receiving bins through a funnel. However, during the transportation of powdered materials, agglomeration may sometimes occur due to various reasons, and the agglomerated materials often block the funnel opening of the conveyor. Therefore, the current common solution is to install a grille at the feed inlet of the funnel to solve the problem of funnel blockage.

[0003] During the long-term use of the grille, problems such as damage will inevitably occur. At this time, the grille needs to be replaced and repaired. In order to prevent the materials from impacting the grille and causing the position of the grille to move when transporting the materials, the grille is usually fixedly installed at the feed inlet of the funnel. Therefore, when replacing the grille, the belt conveyor needs to be stopped to facilitate the maintenance personnel to safely replace and repair it. However, stopping the belt conveyor will inevitably stop the production, which will cause serious economic losses to the factory, and there are deficiencies. Utility Model Content

[0004] In order to improve the problem that the belt conveyor needs to be stopped when replacing the grille, the present application provides an automatic switching device for a funnel grille of a belt conveyor.

[0005] An automatic switching device for a funnel grille of a belt conveyor provided by the present application adopts the following technical solutions:

[0006] An automatic switching device for a funnel grille of a belt conveyor includes a feeding funnel. A frame is arranged at the feed inlet of the feeding funnel. An installation frame is slidably arranged above the feeding funnel on the frame. A main grille is detachably arranged on the installation frame. A fixing member is arranged between the installation frame and the main grille, and the fixing member is used to fix the main grille on the installation frame. A driving member for driving the installation frame to slide is arranged on the frame.

[0007] By adopting the above technical solutions, the worker fixes the main grille on the installation frame through the fixing member, and then drives the installation frame to slide to directly above the feed inlet of the feeding funnel through the driving member, so as to reduce the situation of agglomerated materials blocking the feeding funnel. When it is necessary to repair and replace the main grille, the driving member drives the installation frame away from the feeding funnel, and then the worker disassembles the main grille to be replaced and replaces it with a new main grille, and then resets the main grille through the driving member. During this process, there is no need to stop the conveyor, and the replacement and repair are safe, convenient and efficient.

[0008] Optionally, the driving member includes a slide rail arranged on the frame and having a T-shaped cross-section, the mounting frame slidingly cooperates with the slide rail, a hydraulic cylinder electrically connected to the control system is arranged on the frame, and the mounting frame is arranged on the piston rod of the hydraulic cylinder.

[0009] By adopting the above technical solution, the control system starts the hydraulic cylinder, the piston rod of the hydraulic cylinder pushes the installation frame, the installation frame slides on the slide rail and drives the main grille to slide.

[0010] Optionally, the fixing member includes a positioning shaft rod arranged on the mounting frame, an shaft hole for the positioning shaft rod to pass through is opened on the main grille, an anti-slip shaft is rotatably arranged on the positioning shaft rod, an anti-slip rod is arranged on the anti-slip shaft, and an anti-slip groove for accommodating the anti-slip rod is opened on the positioning shaft rod.

[0011] By adopting the above technical solution, the worker turns the anti-drop rod into the anti-drop groove, then puts the main grille on the positioning shaft rod on the installation frame, and then rotates the anti-drop rod to make the anti-drop rod turn out of the anti-drop groove, thereby fixing the main grille. The process is simple to install and easy to disassemble, which helps to reduce the time spent by workers on maintenance and replacement.

[0012] Optionally, a compression spring is provided between the installation frame and the main grille, and a plurality of crushing cone rods are provided on the main grille.

[0013] By adopting the above technical scheme, the compression spring supports the main grille on the anti-slip rod. When the agglomerated material is pressed on the main grille, the crushing cone rod on the main grille will pierce the agglomerated material. At the same time, the main grille is close to the mounting frame, and the compression spring is squeezed and deformed. When part of it passes through the main grille and falls into the filling funnel, the compression spring recovers its deformation and pierces the material again, making the agglomerated material smaller. During this process, the main grille is in a state of repeated rise and fall, which is beneficial to reduce the possibility of agglomerated material accumulating on the main grille.

[0014] Optionally, a waist-shaped hole for the anti-slip shaft to slide is provided on the positioning shaft along its axial direction, and the anti-slip shaft is biased to one side of the center line of the anti-slip rod.

[0015] By adopting the above technical solution, when the main grille repeatedly rises and falls, the anti-slip shaft continuously slides on the waist-shaped hole, and because the anti-slip shaft is biased to one side of the center line of the anti-slip rod, the main grille can never separate from the positioning shaft rod during the process of sliding along the axis of the positioning shaft rod, and the anti-slip rod does not affect the vertical movement of the main grille.

[0016] Optionally, a sub-grid is detachably provided on the mounting frame, the sub-grid having the same structure as the main grille, and the sub-grid is located on a side of the main grille facing away from the hydraulic cylinder.

[0017] By adopting the above technical solution, when the hydraulic cylinder drives the main grid away from the filling funnel through the mounting frame, the secondary grid will gradually cover the feed port of the filling funnel, thereby further reducing the possibility that the agglomerated material that may be transported on the conveyor will block the filling funnel when the main grid is replaced.

[0018] Optionally, a vibration bar is provided on the frame along the length direction of the slide rail, and a plurality of protrusions are provided on the vibration bar along its length direction. A protrusion is provided on the main grille, and the protrusion is used to abut against the protrusion.

[0019] By adopting the above technical solution, when the main grille needs to be replaced, the main grille drives the protrusion to slide on the vibration bar, and the protrusion continuously rises and falls under the obstruction of the protrusion, so that the main grille continuously moves back and forth along the axial direction of the positioning shaft, so that the material powder attached to the main grille is shaken into the filling funnel, thereby reducing the waste of material caused by replacing the main grille.

[0020] Optionally, both sides of the protrusion along the length direction of the vibration bar are provided with transition arc surfaces.

[0021] By adopting the above technical solution, the transition arc surface reduces the lateral impact force between the bump and the protrusion, which is beneficial to reducing the wear on the bump and extending the service life of the bump.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. The worker fixes the main grille on the installation frame through the fixing parts, and then drives the installation frame to slide to the top of the feeding port of the filling funnel through the driving parts, so as to reduce the situation that the agglomerated materials block the filling funnel. When the main grille needs to be repaired and replaced, the driving parts drive the installation frame away from the filling funnel, and then the worker disassembles the main grille to be replaced and replaces it with a new one, and then resets the main grille through the driving parts. In this process, there is no need to stop the conveyor, and the replacement and maintenance is safe, convenient and efficient;

[0024] 2. The worker turns the anti-drop rod into the anti-drop groove, then puts the main grille on the positioning shaft rod on the installation frame, and then rotates the anti-drop rod to make the anti-drop rod turn out of the anti-drop groove to fix the main grille. This process is simple to install and easy to disassemble, which helps to reduce the time spent by workers on maintenance and replacement;

[0025] 3. The compression spring presses the main grille against the anti - detachment rod. When the agglomerated material presses on the main grille, the crushing cone rod on the main grille will pierce the agglomerated material. At the same time, the main grille approaches the installation frame, and the compression spring is squeezed and deformed. When part of the material passes through the main grille and falls into the feeding funnel, the compression spring resumes its deformation and pierces the material again, making the agglomerated material smaller. During this process, the main grille is constantly rising and falling repeatedly, which is beneficial to reducing the possibility of agglomerated material accumulating on the main grille.

[0026] 4. When the main grille needs to be replaced, the main grille drives the convex block to slide on the vibrating bar. The convex block constantly undulates under the obstruction of the protrusion, so that the main grille moves back and forth continuously along the axis direction of the positioning shaft rod, and the material powder attached to the main grille is shaken off into the feeding funnel, thereby reducing the waste of materials caused by replacing the main grille. Description of the Drawings

[0027] Figure 1 is a schematic structural diagram of an embodiment of the present application.

[0028] Figure 2 is a cross - sectional view of the positional relationship among the positioning shaft rod, the installation frame and the anti - detachment rod in an embodiment of the present application.

[0029] Figure 3 is Figure 1 an enlarged view of part A in

[0030] Description of the reference numerals: 1, feeding funnel; 2, frame; 3, installation frame; 4, main grille; 5, fixing part; 51, positioning shaft rod; 52, shaft hole; 53, anti - detachment shaft; 54, anti - detachment rod; 55, anti - detachment groove; 6, driving part; 61, slide rail; 62, hydraulic cylinder; 7, compression spring; 8, crushing cone rod; 9, kidney - shaped hole; 10, secondary grille; 11, vibrating bar; 12, protrusion; 13, convex block; 14, transition arc surface. Detailed Embodiment

[0031] The following Figures 1-3 further describes the present application in detail.

[0032] The embodiment of the present application discloses an automatic switching device for the funnel grille of a belt conveyor.

[0033] Referring to Figure 1 , an automatic switching device for the funnel grille of a belt conveyor includes a feeding funnel 1. A frame 2 is arranged at the feeding port of the feeding funnel 1. An installation frame 3 is slidably arranged on the frame 2 and above the feeding funnel 1. A main grille 4 is detachably arranged on the installation frame 3. A fixing part 5 is arranged between the installation frame 3 and the main grille 4, and the fixing part 5 is used to fix the main grille 4 on the installation frame 3.

[0034] Referring to Figure 1 , Figure 2and Figure 3 The fixing member 5 includes a positioning shaft rod 51 welded to the mounting frame 3 and being vertical. The positioning shaft rod 51 can be made of wear-resistant iron material. An axial hole 52 for the positioning shaft rod 51 to pass through is formed on the main grille 4. A compression spring 7 is propped between the mounting frame 3 and the main grille 4. A plurality of crushing cone rods 8 are welded on the upper surface of the main grille 4.

[0035] Refer to Figure 1 、 Figure 2 and Figure 3 A detent shaft 53 is rotatably connected to the positioning shaft rod 51. A kidney-shaped hole 9 for the detent shaft 53 to slide along the axis direction of the positioning shaft rod 51 is formed on the positioning shaft rod 51. A detent rod 54 is welded on the detent shaft 53. The detent rod 54 is plated with magnetism. The detent shaft 53 is offset to one side of the center line of the detent rod 54. A detent groove 55 for accommodating the detent rod 54 is formed on the positioning shaft rod 51.

[0036] The worker rotates the detent rod 54 to turn the detent rod 54 into the detent groove 55. Under the adsorption effect of the magnetism of the detent rod 54, the detent rod 54 is received in the detent groove 55. Then the main grille 4 is sleeved on the positioning shaft rod 51 through the axial hole 52. Then the detent rod 54 is rotated again to turn the detent rod 54 out of the detent groove 55. The detent rod 54 slides along the axis direction of the positioning shaft rod 51 under the limiting effects of gravity and the kidney-shaped hole 9. At the same time, under the propping effect of the compression spring 7, the detent rod 54 abuts against the upper surface of the main grille 4.

[0037] When the agglomerated material presses on the main grille 4, the crushing cone rods 8 on the main grille 4 will pierce the agglomerated material. At the same time, the main grille 4 descends close to the mounting frame 3, and the compression spring 7 is squeezed and deformed. When part of the material falls through the holes on the main grille 4 onto the feeding funnel 1, the compression spring 7 restores its deformation and pierces the agglomerated material again, making the agglomerated material smaller. During this process, since the compression spring 7 will be pressed down again by the subsequent material and deformed, the main grille 4 is in a continuous repeated up-and-down movement, so that the volume of the agglomerated material becomes smaller and smaller.

[0038] Refer to Figure 1 、 Figure 2 and Figure 3 A driving member 6 for driving the mounting frame 3 to slide is arranged on the frame 2. The driving member 6 includes a slide rail 61 welded to the frame 2 and having a T-shaped cross section. The mounting frame 3 is slidably engaged with the slide rail 61. A hydraulic cylinder 62 electrically connected to the control system is hinged on the frame 2. The mounting frame 3 is hinged to the piston rod of the hydraulic cylinder 62.

[0039] Refer to Figure 1 、 Figure 2 and Figure 3A sub-grid 10 is detachably arranged on the mounting frame 3. The sub-grid 10 has the same structure as the main grille 4. The sub-grid 10 is located on the side of the main grille 4 facing away from the hydraulic cylinder 62. A vibration bar 11 is welded on the frame 2 along the length direction of the slide rail 61. The vibration bar 11 faces one side of the main grille 4 and is welded with a plurality of protrusions 12 along its length direction. A protrusion 13 is welded on the main grille 4. The protrusion 13 is used to abut against the protrusion 12. Both sides of the protrusion 13 along the length direction of the vibration bar 11 are provided with transition arc surfaces 14.

[0040] When the main grille 4 needs to be replaced and repaired, the control system starts the hydraulic cylinder 62, and the piston rod of the hydraulic cylinder 62 drives the mounting frame 3 away from the filling funnel 1. The mounting frame 3 drives the main grille 4 to slide synchronously on the slide rail 61 until the mounting frame 3 stops moving. At this time, the secondary grille 10 is located directly above the filling funnel 1, and then the worker turns the anti-slip rod 54 to replace the main grille 4.

[0041] During the movement of the main grille 4, the main grille 4 drives the protrusion 13 to slide on the vibration bar 11, and the protrusion 13 continuously moves up and down under the obstruction of the protrusion 12, so that the main grille 4 continuously moves back and forth along the axial direction of the positioning shaft 51, so that the material powder that falls on the main grille 4 again is shaken into the filling funnel 1, thereby reducing the waste of material.

[0042] The implementation principle of the automatic switching device of the funnel grille of a belt conveyor according to the embodiment of the present application is as follows: a worker rotates the anti-slip rod 54 to make the anti-slip rod 54 rotate into the anti-slip groove 55. Under the magnetic adsorption effect of the anti-slip rod 54, the anti-slip rod 54 is received in the anti-slip groove 55. Then, the main grille 4 is sleeved on the positioning shaft rod 51 through the shaft hole 52. Then, the anti-slip rod 54 is rotated to make the anti-slip rod 54 rotate out of the anti-slip groove 55. Under the limiting effect of gravity and the waist-shaped hole 9, the anti-slip rod 54 slides along the axial direction of the positioning shaft rod 51. At the same time, under the supporting effect of the compression spring 7, the anti-slip rod 54 is tightly attached to the upper surface of the main grille 4.

[0043] When the agglomerated materials are pressed on the main grid 4, the crushing cone rods 8 on the main grid 4 will puncture the agglomerated materials. At the same time, the main grid 4 descends close to the mounting frame 3, and the compression spring 7 is squeezed and deformed. When part of the materials fall into the injection funnel 1 through the holes on the main grid 4, the compression spring 7 recovers its deformation and punctures the agglomerated materials again, making the agglomerated materials smaller. In this process, the compression spring 7 will be deformed by being pressed down again by the subsequent materials, causing the main grid 4 to be in a repeated upward and downward movement, thereby continuously reducing the volume of the agglomerated materials.

[0044] When the main grille 4 needs to be replaced or repaired, the control system activates the hydraulic cylinder 62. The piston rod of the hydraulic cylinder 62 drives the installation frame 3 away from the feeding funnel 1. The installation frame 3 drives the main grille 4 to slide synchronously on the slide rail 61 until the installation frame 3 stops moving. At this time, the secondary grille 10 is located directly above the feeding funnel 1. Then the worker can rotate the anti - detachment rod 54 to replace the main grille 4.

[0045] During the movement of the main grille 4, the main grille 4 drives the convex block 13 to slide on the vibration bar 11. Under the obstructive action of the protrusion 12, the convex block 13 continuously moves up and down, so that the main grille 4 continuously moves back and forth along the axis direction of the positioning shaft rod 51, and the material powder that falls on the main grille 4 again is shaken off into the feeding funnel 1, thereby reducing the waste of materials.

[0046] The above are all the preferred embodiments of the present application. It does not limit the protection scope of the present application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A belt conveyor funnel grid automatic switching device, comprising a filling funnel (1), characterized in that: A frame (2) is provided at the feed inlet of the injection funnel (1); a mounting frame (3) is slidably provided on the frame (2) and located above the injection funnel (1); a main grille (4) is detachably provided on the mounting frame (3); a fixing member (5) is provided between the mounting frame (3) and the main grille (4); the fixing member (5) is used to fix the main grille (4) on the mounting frame (3); and a driving member (6) for driving the mounting frame (3) to slide is provided on the frame (2).

2. The automatic switching device for the funnel grid of a belt conveyor according to claim 1 is characterized in that: The driving member (6) comprises a slide rail (61) which is arranged on the frame (2) and has a T-shaped cross section; the mounting frame (3) is slidably matched with the slide rail (61); a hydraulic cylinder (62) which is electrically connected to a control system is arranged on the frame (2); and the mounting frame (3) is arranged on a piston rod of the hydraulic cylinder (62).

3. The automatic switching device for the funnel grid of a belt conveyor according to claim 2 is characterized in that: The fixing member (5) comprises a positioning shaft rod (51) arranged on the installation frame (3); the main grille (4) is provided with a shaft hole (52) for the positioning shaft rod (51) to pass through; an anti-slip shaft (53) is rotatably provided on the positioning shaft rod (51); an anti-slip rod (54) is provided on the anti-slip shaft (53); and an anti-slip groove (55) for accommodating the anti-slip rod (54) is provided on the positioning shaft rod (51).

4. The automatic switching device for the funnel grid of a belt conveyor according to claim 3 is characterized in that: A compression spring (7) is provided between the installation frame (3) and the main grille (4), and a plurality of crushing cone rods (8) are provided on the main grille (4).

5. The automatic switching device for the funnel grid of a belt conveyor according to claim 4 is characterized in that: The positioning shaft rod (51) is provided with a waist-shaped hole (9) along its axial direction for the anti-slip shaft (53) to slide, and the anti-slip shaft (53) is biased to one side of the center line of the anti-slip rod (54).

6. The automatic switching device for the funnel grid of a belt conveyor according to claim 2 is characterized in that: A secondary grille (10) is detachably provided on the installation frame (3); the secondary grille (10) has the same structure as the main grille (4); and the secondary grille (10) is located on a side of the main grille (4) facing away from the hydraulic cylinder (62).

7. The automatic switching device for the funnel grid of a belt conveyor according to claim 4 is characterized in that: A vibration bar (11) is arranged on the frame (2) along the length direction of the slide rail (61), and a plurality of protrusions (12) are arranged on the vibration bar (11) along its length direction. A protrusion (13) is arranged on the main grille (4), and the protrusion (13) is used to abut against the protrusion (12).

8. The automatic switching device for the funnel grid of a belt conveyor according to claim 7 is characterized in that: The protrusion (13) is provided with transition arc surfaces (14) on both sides along the length direction of the vibration bar (11).

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