Lower cleaning device of belt conveyor

Abstract

The utility model discloses a lower cleaning device of a belt conveyor, and belongs to the technical field of material conveying. Comprising a driving chain wheel and a driven chain wheel which are respectively arranged at two ends below a conveying belt of the belt conveyor; the chain is mounted on the driving chain wheel and the driven chain wheel, and the rotating direction of the chain is opposite to that of the conveying belt; the plurality of sweeping plate assemblies are uniformly fixed on the chain; the guide rail assembly is arranged below the chain; the chain on the lower layer penetrates through the guide rail assembly; and under the driving of the chains, the chains on the lower layer pull the sweeping plate assembly to sweep materials falling below the conveying belt to a discharge port of the belt conveyor. By arranging the guide rail assembly, the straightness of the chain in the process of driving the sweeping plate is improved, and distortion and damage of the chain caused by inclination of the sweeping plate are reduced; the guide rail plays a role in guiding and can also adjust the right support left and right, so that the tension degree of the chain is adjustable, and the stable operation of the chain is further ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of material transportation, in particular to a cleaning device under a belt conveyor. Background Art

[0002] During the material conveying process, it is inevitable that materials will fall from the conveyor belt. These fallen materials will accumulate in the area below the belt conveyor, which not only affects the cleanliness of the equipment but may also interfere with its normal operation. In order to effectively remove these fallen materials, it is usually necessary to install a cleaning device under the belt conveyor.

[0003] Traditional cleaning devices mostly use a chain-driven sweeper design. The sweeper is relatively wide and is usually connected to the chain only in the middle. This design has the following shortcomings in practical applications:

[0004] Since the material resistance encountered by the two ends of the sweeping plate during the cleaning process is often different, this will cause the sweeping plate to tilt, which in turn causes the chain to twist and be damaged. The twisting of the chain will not only affect the cleaning effect, but may also pose a threat to the stable operation of the entire belt conveyor. Utility Model Content

[0005] The utility model aims to provide a cleaning device under a belt conveyor, which improves the straightness of the chain in the process of driving a sweeping plate by arranging a guide mechanism for the chain.

[0006] The utility model adopts the following technical solution: a cleaning device under a belt conveyor, comprising:

[0007] The driving sprocket and the driven sprocket are respectively arranged at the two ends below the conveyor belt of the belt conveyor. The rotating shafts of the driving sprocket and the driven sprocket are arranged horizontally and are respectively connected to the frame of the belt conveyor for rotation.

[0008] A chain is mounted on the driving sprocket and the driven sprocket; the rotation direction of the chain is opposite to the rotation direction of the conveyor belt;

[0009] A plurality of sweep plate assemblies are evenly fixed on the chain;

[0010] The guide rail assembly is arranged below the chain; the lower chain is passed through the guide rail assembly; driven by the chain, the lower chain pulls the sweeping plate assembly to sweep the material that falls below the conveyor belt to the discharge port of the belt conveyor.

[0011] Furthermore, the sweeping plate assembly includes:

[0012] a pair of lugs, respectively fixed on both sides of a link in the chain;

[0013] A first L-shaped support plate, fixedly connected to the two ear plates;

[0014] A rubber plate is attached to the side of the first L-shaped support plate; one side of the rubber plate extends beyond the side of the first L-shaped support plate away from the ear plate;

[0015] The pressing plate is attached to a side of the rubber plate away from the first L-shaped support plate; the pressing plate, the rubber plate and the first L-shaped support plate are fixedly connected as a whole.

[0016] The guide rail assembly comprises:

[0017] A guide rail is arranged on the upper side of the chain of the lower layer; a limiting groove is provided on the lower side of the guide rail for the chain of the lower layer to pass through;

[0018] The left support and the right support are respectively fixed on the two ends of the guide rail; the left support and the right support are respectively connected to the driving sprocket and the driven sprocket for corresponding rotation.

[0019] The limiting through groove is a stepped groove, and the upper side width of the limiting through groove is smaller than the lower side width of the limiting through groove.

[0020] A pair of guide plates with conical distribution are fixed to both ends of the guide rail, and the pair of guide plates are respectively arranged on both sides of the limiting groove.

[0021] One end of the right support is rotatably connected to the rotating shaft of the driven sprocket through a bearing, and the other end of the right support is fixedly connected to the right end of the guide rail through a bolt.

[0022] The right end of the guide rail is provided with a long hole opened along the length direction of the guide rail, and the right end of the guide rail is fixedly connected to the right support through the long hole and bolts.

[0023] The sweeping plate assembly comprises:

[0024] a pair of lugs, respectively fixed on both sides of a link in the chain;

[0025] A pair of second L-shaped support plates are symmetrically fixedly connected to the two ear plates; the vertical sides of the two second L-shaped support plates are opposite to each other;

[0026] The rubber plate is clamped between the vertical edges of the two second L-shaped support plates; one side of the rubber plate extends beyond the side of the second L-shaped support plate away from the ear plate, and the two second L-shaped support plates are fixedly connected to the rubber plate as a whole.

[0027] The side of the second L-shaped support plate that is in contact with the rubber plate has a stopper that matches the rubber plate.

[0028] The beneficial effects of the present invention are: by arranging the guide rail assembly, the straightness of the chain in the process of driving the sweeping plate is improved, and the distortion and damage of the chain caused by the inclination of the sweeping plate are reduced; while the guide rail plays a guiding role, it is also supported between the active sprocket and the driven sprocket through the left and right supports. In this way, the tension of the chain can be adjusted by adjusting the right support to the left and right, further ensuring the stable operation of the chain; the rubber plate is clamped by the symmetrical second L-shaped support plate, and the limiting effect of the stopper further enhances the stability of the rubber plate, so that the rubber plate can be more stably connected to the chain. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0030] Figure 1 This is a three-dimensional diagram of a cleaning device under a belt conveyor according to the utility model.

[0031] Figure 2 It is a three-dimensional diagram of the guide rail assembly in the utility model.

[0032] Figure 3 This is an assembly diagram of a cleaning device under a belt conveyor according to the utility model.

[0033] Figure 4 It is a three-dimensional diagram of a sweeping plate assembly in the present invention.

[0034] Figure 5 It is a three-dimensional diagram of another sweeping plate assembly in the present invention.

[0035] Description of reference numerals:

[0036] 1. Driving sprocket; 2. Driven sprocket; 3. Chain;

[0037] 4. Sweep plate assembly; 401. Ear plate; 402. First L-shaped support plate; 403. Rubber plate; 404. Press plate;

[0038] 412, second L-shaped support plate; 4121, stopper;

[0039] 5. Guide rail assembly; 51. Guide rail; 511. Limiting slot; 52. Left support; 53. Right support; 54. Guide plate;

[0040] 6. Belt conveyor; 61. Conveyor belt; 62. Discharge port; 63. Feed port. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0042] Example 1:

[0043] like Figures 1 to 3 As shown, the utility model provides a cleaning device under a belt conveyor. The driving sprocket 1 and the driven sprocket 2 are arranged at a certain distance from each other in the same plane, and the rotating shafts of the driving sprocket 1 and the driven sprocket 2 are horizontally and rotatably installed in the frame of the belt conveyor 6. Among them, the driving sprocket 1 is connected to a driving mechanism, for example, a reduction motor. The chain 3 is installed on the driving sprocket 1 and the driven sprocket 2, and the direction of the chain 3 is opposite to the direction of the conveyor belt 61. A plurality of sweeping plate assemblies 4 are evenly fixed on the chain 3, and the guide rail assembly 5 is mainly used to guide the chain 3 of the lower layer. Under the drive of the chain 3, the chain 3 of the lower layer pulls the sweeping plate assembly 4 to sweep the material that falls under the conveyor belt 61 to the discharge port 62 of the belt conveyor 6.

[0044] The guide rail assembly 5 includes a guide rail 51 positioned above the lower chain 3. A limit slot 511 is defined on the lower side of the guide rail 51, through which the lower chain 3 passes. The limit slot 511 is a stepped slot, with the upper width of the limit slot 511 being smaller than the lower width. A pair of guide plates 54 are secured to each end of the guide rail 51. The guide plates 54 are positioned on either side of the limit slot 511 and form a tapered shape. These guide plates 54 guide the chain 3 as it enters the limit slot 511, facilitating smooth entry.

[0045] A left support 52 and a right support 53 are fixed to each end of the guide rail 51. The left support 52 and the right support 53 are rotatably connected to the driving sprocket 1 and the driven sprocket 2, respectively, via bearings. The right end of the guide rail 51 has an elongated hole extending along its length. The right end of the guide rail 51 is fixedly connected to the right support 53 via the elongated hole and bolts. The guide rail 51 guides the chain 3. The right support 53 can be adjusted left and right relative to the guide rail 51, thereby adjusting the spacing between the driving sprocket 1 and the driven sprocket 2, thereby tensioning the chain 3.

[0046] like Figure 3 As shown, when working;

[0047] The cleaning device is arranged on the bottom plate below the conveyor belt 61 in the belt conveyor 6. The material falls from the feed port 63 onto the conveyor belt 61, and then moves to the right end with the conveyor belt 61 and falls to the discharge port 62.

[0048] During the process of the material being transported along the conveyor belt 61, part of the material spills from the conveyor belt 61 onto the bottom plate of the belt conveyor 6;

[0049] The driving sprocket 1 in the cleaning device drives the chain 3 to rotate, and the chain 3 on the lower layer moves to the right along the guide rail 51, thereby pulling the sweeping plate assembly 4 to sweep the materials dropped on the bottom plate to the discharge port 62.

[0050] Example 2:

[0051] Based on the above embodiment 1, combined with Figures 1 to 4 As shown, in this embodiment, the sweeping plate assembly 4 is fixed to a certain link in the chain 3. The sweeping plate assembly 4 includes a pair of "L"-shaped ear plates 401, and the two ear plates 401 are welded and fixed on both sides of the link. The first L-shaped support plate 402 is fixedly connected to the two ear plates 401 by bolts. The rubber plate 403 is attached to the side of the first L-shaped support plate 402, and the pressure plate 404 is attached to the side of the rubber plate 403 away from the first L-shaped support plate 402. The pressure plate 404 and the first L-shaped support plate 402 clamp the rubber plate 403, and then the pressure plate 404, the rubber plate 403 and the first L-shaped support plate 402 are fixedly connected as a whole by bolts. The side of the rubber plate 403 extends beyond the side of the first L-shaped support plate 402 away from the ear plate 401, and is used to sweep materials.

[0052] Example 3:

[0053] Based on the above embodiment 1, combined with Figure 5 As shown, this embodiment provides another sweeping plate assembly 4. The sweeping plate assembly 4 includes a pair of "L"-shaped ear plates 401, and the two ear plates 401 are welded and fixed on both sides of the chain link. A pair of second L-shaped support plates 412 are symmetrically arranged on the two ear plates 401, and each second L-shaped support plate 412 is fixedly connected to the two ear plates 401 by bolts, and the vertical edges of the two second L-shaped support plates 412 are aligned inward. The rubber plate 403 is clamped between the vertical edges of the two second L-shaped support plates 412. A stop 4121 is provided on the side where the second L-shaped support plate 412 is in contact with the rubber plate 403. The rubber plate 403 is installed in the stop 4121, and the step in the stop 4121 is against the rubber plate 403 to limit the rubber plate 403. The two second L-shaped support plates 412 are fixedly connected to the rubber plate 403 by bolts. The side of the rubber plate 403 extends beyond the side of the second L-shaped support plate 412 away from the ear plate 401 for cleaning materials.

[0054] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A cleaning device under a belt conveyor, characterized in that: include: The driving sprocket (1) and the driven sprocket (2) are respectively arranged at the two ends below the conveying belt (61) of the belt conveyor (6), and the rotating shafts of the driving sprocket (1) and the driven sprocket (2) are arranged horizontally and are respectively connected to the frame of the belt conveyor (6); A chain (3) is mounted on the driving sprocket (1) and the driven sprocket (2); the rotation direction of the chain (3) is opposite to the rotation direction of the conveyor belt (61); A plurality of sweeping plate assemblies (4) are evenly fixed on the chain (3); The guide rail assembly (5) is arranged below the chain (3); the lower chain (3) is passed through the guide rail assembly (5); driven by the chain (3), the lower chain (3) pulls the sweeping plate assembly (4) to sweep the material falling below the conveyor belt (61) to the discharge port (62) of the belt conveyor (6).

2. A cleaning device under a belt conveyor according to claim 1, characterized in that: The sweeping plate assembly (4) comprises: A pair of ear plates (401) are respectively fixed on both sides of a link in the chain (3); A first L-shaped support plate (402) is fixedly connected to the two ear plates (401); A rubber plate (403) is attached to the side of the first L-shaped support plate (402); one side of the rubber plate (403) extends beyond the side of the first L-shaped support plate (402) away from the ear plate (401); The pressing plate (404) is attached to a side of the rubber plate (403) away from the first L-shaped support plate (402); the pressing plate (404), the rubber plate (403) and the first L-shaped support plate (402) are fixedly connected as a whole.

3. A cleaning device under a belt conveyor according to claim 1, characterized in that: The guide rail assembly (5) comprises: A guide rail (51) is arranged on the upper side of the chain (3) of the lower layer; a limiting through groove (511) is provided on the lower side of the guide rail (51) for the chain (3) of the lower layer to pass through; The left support (52) and the right support (53) are respectively fixed at the two ends of the guide rail (51); the left support (52) and the right support (53) are respectively rotationally connected to the driving sprocket (1) and the driven sprocket (2).

4. A cleaning device under a belt conveyor according to claim 3, characterized in that: The limiting through groove (511) is a stepped groove, and the upper side width of the limiting through groove (511) is smaller than the lower side width of the limiting through groove (511).

5. The cleaning device under a belt conveyor according to claim 3, characterized in that: A pair of guide plates (54) distributed in a cone shape are fixed to both ends of the guide rail (51), and the pair of guide plates (54) are respectively arranged on both sides of the limiting slot (511).

6. The cleaning device under a belt conveyor according to claim 3, characterized in that: One end of the right support (53) is rotatably connected to the rotating shaft of the driven sprocket (2) via a bearing, and the other end of the right support (53) is fixedly connected to the right end of the guide rail (51) via a bolt.

7. The cleaning device under a belt conveyor according to claim 6, characterized in that: The right end of the guide rail (51) is provided with a long hole opened along the length direction of the guide rail (51), and the right end of the guide rail (51) is fixedly connected to the right support (53) through the long hole and bolts.

8. The cleaning device under a belt conveyor according to claim 1, characterized in that: The sweeping plate assembly (4) comprises: a pair of ear plates (401) respectively fixed on both sides of a link in the chain (3); A pair of second L-shaped support plates (412) are symmetrically fixedly connected to the two ear plates (401); the vertical edges of the two second L-shaped support plates (412) are opposite to each other; The rubber plate (403) is clamped between the vertical edges of the two second L-shaped support plates (412); one side of the rubber plate (403) extends beyond the side of the second L-shaped support plate (412) away from the ear plate (401), and the two second L-shaped support plates (412) and the rubber plate (403) are fixedly connected as a whole.

9. The cleaning device under a belt conveyor according to claim 8, characterized in that: The side of the second L-shaped support plate (412) that is in contact with the rubber plate (403) has a stopper (4121) that cooperates with the rubber plate (403).

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