Belt conveyor with belt cleaning mechanism

Abstract

The application discloses a belt conveyor with a belt cleaning mechanism, comprising a mounting frame, a belt and a cleaning mechanism, the mounting frame is provided with two transmission wheels, the belt is installed between the two transmission wheels, the belt has a conveying section and a return section, the cleaning mechanism comprises a spray pipe, the spray pipe is installed on the mounting frame and extends along the width direction of the belt, the spray pipe is provided with a plurality of nozzles, the plurality of nozzles are arranged along the length direction of the spray pipe, and the nozzles are directed towards the return section, wherein the spray pipe can swing around its own axis to adjust the spraying direction of the nozzles. The belt conveyor with the belt cleaning mechanism can not only reduce damage to the belt when cleaning the belt, but also clean more thoroughly and better.

Description

Technical Field

[0001] This invention relates to the field of conveying equipment technology, and in particular to a belt conveyor with a belt cleaning mechanism. Background Technology

[0002] Belt conveyors require regular belt cleaning. Common techniques involve installing movable scrapers; when cleaning is needed, the scraper is moved to fit against the belt, and as the belt moves, the scraper removes residue. However, it has been found that some belts, designed to reduce slippage of conveyed materials, are not smooth but have anti-slip structures. Therefore, cleaning with a scraper can easily damage the belt and result in incomplete cleaning. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, the present invention proposes a belt conveyor with a belt cleaning mechanism, which not only reduces damage to the belt during belt cleaning, but also cleans more thoroughly and achieves better cleaning results.

[0004] According to an embodiment of the present invention, a belt conveyor with a belt cleaning mechanism includes a mounting frame, a belt, and a cleaning mechanism. The mounting frame is provided with two drive wheels, and the belt is installed between the two drive wheels. The belt has a conveying section and a return section. The cleaning mechanism includes a spray pipe, which is installed on the mounting frame and extends along the width direction of the belt. The spray pipe is provided with a plurality of nozzles, which are arranged along the length direction of the spray pipe and face the return section. The spray pipe is oscillating about its own axis to adjust the spray direction of the nozzles.

[0005] The belt conveyor with a belt cleaning mechanism according to embodiments of the present invention has at least the following beneficial effects:

[0006] In this invention, when the belt needs cleaning, the belt is driven to move via a transmission wheel. During this movement, cleaning water is introduced into the spray pipe. The spray pipe then sprays cleaning water through nozzles towards the area near the spray pipe on the return section. Furthermore, the belt's movement allows other parts of the belt to move sequentially to the vicinity of the spray pipe, ensuring thorough cleaning of all parts without damage. Additionally, the spray pipe oscillates around its axis during cleaning, adjusting the nozzle's spray direction. This allows cleaning water to be sprayed onto the belt's cleaning areas from multiple directions, resulting in a more comprehensive and thorough cleaning and better belt cleaning effect.

[0007] According to some embodiments of the present invention, the cleaning mechanism further includes two guide rollers and a tension roller. The two guide rollers are rotatably mounted on the mounting frame and arranged along the conveying direction of the belt. The guide rollers extend along the width direction of the belt and are in contact with the surface of the return section facing away from the conveying section. The tension roller is rotatably mounted on the mounting frame and extends along the width direction of the belt. The tension roller is located below the two guide rollers and is in contact with the surface of the return section facing the conveying section.

[0008] According to some embodiments of the present invention, the return section forms a cleaning section in the portion between the guide roller and the tension roller, and two spray pipes are provided, with the two spray pipes respectively located on opposite sides of the two cleaning sections, and the nozzles facing the cleaning section.

[0009] According to some embodiments of the present invention, a transmission assembly is provided between the tension roller and the two spray pipes, and when the belt drives the tension roller to rotate, the tension roller drives the two spray pipes to swing simultaneously through the transmission assembly.

[0010] According to some embodiments of the invention, the two spray pipes swing in opposite directions.

[0011] According to some embodiments of the present invention, the transmission assembly includes a cam, two gears and a rack. The cam is connected to one end of the tension roller, and the two gears are respectively connected to one end of the two spray pipes corresponding to the cam. The rack is slidably mounted vertically on the mounting bracket and extends vertically. The rack is located between the two gears, wherein the two gears respectively mesh with the two sides of the rack, and the top end of the cam abuts against the bottom end of the rack.

[0012] According to some embodiments of the present invention, the transmission assembly further includes an elastic element disposed between the rack and the mounting bracket to apply a downward elastic force to the rack.

[0013] According to some embodiments of the present invention, the cam is detachably connected to the tensioning roller.

[0014] According to some embodiments of the present invention, the rack can slide upwards to separate from the cam.

[0015] According to some embodiments of the present invention, a limiting member is provided between the rack and the mounting bracket. When the rack slides upward to separate from the cam, the limiting member can lock the rack to restrict the rack from sliding.

[0016] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and some advantages will become apparent from the description or may be learned by practice of the invention. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0018] Figure 1 This is a schematic diagram of the belt conveyor with a belt cleaning mechanism according to the present invention;

[0019] Figure 2 A schematic diagram illustrating the work of the cleaning organization;

[0020] Figure 3 This is a schematic diagram of the operation of the transmission assembly;

[0021] Figure 4 for Figure 3 A schematic diagram of the structure after the cam has been removed.

[0022] Icon labels:

[0023] Mounting bracket 100; drive wheel 101; water collection box 102;

[0024] Belt 200; Conveying section 201; Return section 202; Cleaning section 203;

[0025] Cleaning mechanism 300; spray pipe 301; nozzle 302; guide roller 303; tension roller 304; transmission assembly 305; cam 306; gear 307; rack 308; elastic element 309; limiting element 310; spline groove 311; threaded hole 312; fastening bolt 313; first positioning hole 314. Detailed Implementation

[0026] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0027] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the drawings and are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0028] In the description of this invention, "multiple" refers to two or more. The use of "first" and "second" is for distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features or their sequential relationship.

[0029] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0030] The following is for reference. Figures 1 to 4 A belt conveyor with a belt cleaning mechanism according to an embodiment of the present invention is described.

[0031] refer to Figures 1 to 4 As shown, a belt conveyor with a belt cleaning mechanism according to an embodiment of the present invention includes a mounting frame 100, a belt 200, and a cleaning mechanism 300.

[0032] The mounting bracket 100 is provided with two drive wheels 101, which can be arranged side by side. One of the drive wheels 101 can be connected to a drive motor, which drives the drive wheel 101 to rotate.

[0033] The belt 200 is installed between two drive pulleys 101, meaning that both ends of the belt 200 are wound around the two drive pulleys 101 respectively. The belt 200 has a conveying section 201 and a return section 202, both located between the two drive pulleys 101. The conveying section 201 can be located above the return section 202. The conveying section 201 is used to convey materials, and the return section 202 is used for the return trip. The drive motor drives the drive pulleys 101 to rotate, and the two drive pulleys 101 move the belt 200 through friction.

[0034] The cleaning mechanism 300 includes a spray pipe 301, which is mounted on the mounting frame 100. The spray pipe 301 can be connected to a water inlet pipe, which can be connected to a water source. The spray pipe 301 can extend along the width direction of the belt 200. The spray pipe 301 is provided with multiple nozzles 302, which are arranged along the length direction of the spray pipe 301. The nozzles 302 face the return section 202, for example, they can face the surface of the return section 202 away from the conveying section 201. In this way, the cleaning water sprayed by the nozzles 302 can clean the surface of the belt 200 used for conveying materials, and the cleaning effect is good. The spray pipe 301 can swing around its own axis to adjust the spray direction of the nozzle 302, thereby enabling the cleaning water to be sprayed in multiple different directions to the cleaning position of the return section 202. For example, when the belt 200 is equipped with an anti-slip structure, the residue may be located on the side of the anti-slip structure closer to the feed end or on the side of the anti-slip structure closer to the discharge end. By swinging the spray pipe 301, the cleaning water can be sprayed in multiple different directions to the cleaning position of the return section 202. In this way, even if the residue is located in different positions of the anti-slip structure, it can be sprayed by the cleaning water, resulting in a more comprehensive and thorough cleaning and a better cleaning effect.

[0035] In this embodiment, when the belt 200 needs cleaning, it is driven to move by the transmission wheel 101. During the movement of the belt 200, cleaning water is introduced into the spray pipe 301. The spray pipe 301 sprays cleaning water through the nozzles 302 towards the position near the spray pipe 301 on the return section 202 for cleaning. Furthermore, during the movement of the belt 200, other parts of the belt 200 can be moved sequentially to the vicinity of the spray pipe 301, thus enabling cleaning of various parts of the belt 200 without damaging it. In addition, during the cleaning process, the spray pipe 301 swings back and forth around its own axis, thereby adjusting the spray direction of the nozzles 302. This allows the cleaning water to be sprayed onto the areas of the belt 200 to be cleaned in multiple different directions, resulting in a more comprehensive and thorough cleaning and a better cleaning effect on the belt 200.

[0036] refer to Figure 2 As shown, in some embodiments of the present invention, the cleaning mechanism 300 further includes two guide rollers 303 and a tension roller 304. The two guide rollers 303 are rotatably mounted on the mounting frame 100 and arranged along the conveying direction of the belt 200. The guide rollers 303 extend along the width direction of the belt 200 and are in contact with the surface of the return section 202 facing away from the conveying section 201. The tension roller 304 is rotatably mounted on the mounting frame 100 and extends along the width direction of the belt 200. The tension roller 304 is located below the two guide rollers 303 and is in contact with the surface of the return section 202 facing the conveying section 201.

[0037] In this embodiment, the belt 200 can be tensioned by two guide rollers 303 and tension roller 304, which not only improves the conveying effect of the belt 200, but also improves the cleaning effect of the belt 200. In addition, due to the tension of the tension roller 304, the part of the belt 200 between the two guide rollers 303 protrudes downward. As the cleaning water sprayed by the nozzle 302 onto the return section 202 moves with the belt 200 between the two guide rollers 303, it can fall downward under its own gravity, thereby effectively removing the cleaning water from the belt 200.

[0038] refer to Figure 2 As shown, in some embodiments of the present invention, the portion of the return section 202 between the guide roller 303 and the tension roller 304 forms a cleaning section 203. Two spray pipes 301 are provided, each located on a side opposite to the other of the two cleaning sections 203, with nozzles 302 facing the cleaning section 203. For example, one cleaning section 203 may be formed between the tension roller 304 and one of the guide rollers 303, and another cleaning section 203 may be formed between the tension roller 304 and the other guide roller 303. The two cleaning sections 203 may extend vertically or downwardly. The two spray pipes 301 are located on a side opposite to the other of the two cleaning sections 203, with nozzles 302 on the spray pipes 301 facing the adjacent cleaning section 203.

[0039] In this embodiment, the configuration allows the return section 202 to undergo an initial cleaning by the cleaning water sprayed from the nozzles 302 on one of the spray pipes 301 when it passes near that pipe. Similarly, when the return section 202 passes near the other spray pipe 301, it undergoes a second cleaning by the cleaning water sprayed from the nozzles 302 on that pipe. This results in a more comprehensive and thorough cleaning, leading to better cleaning of the belt 200. Furthermore, the cleaning water sprayed from the nozzles 302 flows down from the bottom of both cleaning sections 203, further enhancing the removal of cleaning water from the belt 200.

[0040] refer to Figure 2 and Figure 3As shown, in some embodiments of the present invention, a transmission assembly 305 is provided between the tension roller 304 and the two spray pipes 301. When the belt 200 drives the tension roller 304 to rotate, the tension roller 304 drives the two spray pipes 301 to swing simultaneously through the transmission assembly 305. When the belt 200 moves, the friction between the belt 200 and the tension roller 304 will drive the tension roller 304 to rotate. The tension roller 304 can drive the two spray pipes 301 to swing through the transmission assembly 305, without the need for an additional drive component to drive the spray pipes 301 to swing. The structure is simpler and the cost is lower. Secondly, the movement of the belt 200 and the swing of the spray pipes 301 are synchronized, resulting in a better cleaning effect on the belt 200. In addition, the simultaneous swing of the two spray pipes 301 further improves the cleaning effect.

[0041] refer to Figure 2 As shown, in some embodiments of the present invention, the two spray pipes 301 swing in opposite directions. For example, when one spray pipe 301 swings clockwise, the other spray pipe 301 can swing counterclockwise. In this way, after the return section 202 of the belt 200 passes near the two spray pipes 301 in sequence, generally speaking, all positions of the return section 202 can be cleaned by the cleaning water sprayed from the nozzles 302 of the two spray pipes 301, making the cleaning more comprehensive and thorough.

[0042] refer to Figure 3 and Figure 4 As shown, in some embodiments of the present invention, the transmission assembly 305 includes a cam 306, two gears 307 and a rack 308. The cam 306 is connected to one end of the tension roller 304. The two gears 307 are respectively connected to one end of the two spray pipes 301 corresponding to the cam 306. The rack 308 is slidably mounted on the mounting bracket 100 in a vertical direction. The rack 308 extends vertically and is located between the two gears 307. The two gears 307 mesh with the two sides of the rack 308 respectively. The top end of the cam 306 abuts against the bottom end of the rack 308. For example, the rotation axis of the cam 306 can be coaxial with the center line of the tension roller 304, the gear 307 can be located at one end of the spray pipe 301 near the cam 306, the gear 307 can be coaxial with the spray pipe 301, the rack 308 can be located between the two gears 307 and above the cam 306, and the rack 308 can have meshing teeth on both sides, which mesh with the corresponding gears 307.

[0043] In this embodiment, when the tension roller 304 rotates, it drives the cam 306 to rotate. As the distance between the position of the cam 306 abutting the rack 308 and the rotation axis of the cam 306 gradually increases, the rack 308 slides upward, thereby driving the two gears 307 to rotate synchronously, which in turn drives the two spray pipes 301 to swing upward simultaneously. As the distance between the position of the cam 306 abutting the rack 308 and the rotation axis of the cam 306 gradually decreases, the rack 308 slides downward, thereby driving the two gears 307 to rotate synchronously, which in turn drives the two spray pipes 301 to swing downward simultaneously, thus adjusting the spray direction of the nozzle 302. The structure is simple, the operation is convenient, and the adjustment effect is good. Moreover, it can convert the rotational motion of the tension roller 304 into the swinging motion of the spray pipe 301, avoiding the waste of cleaning water and the reduction of cleaning effect caused by the spray pipe 301 rotating a full circle. The design is ingenious.

[0044] It should be noted that the transmission component 305 can also be other structures, such as a crank-rocker mechanism, as long as it can drive the spray pipe 301 to swing.

[0045] refer to Figure 3 and Figure 4 As shown, in some embodiments of the present invention, the transmission assembly 305 further includes an elastic element 309, which is disposed between the rack 308 and the mounting bracket 100 to apply a downward elastic force to the rack 308. For example, the elastic element 309 can be a spring, which can extend vertically, with its top end connected to the mounting bracket 100 and its bottom end connected to the rack 308. When the cam 306 pushes the rack 308 to slide up and down, the elastic element 309 is always in a compressed state, thereby applying a downward elastic force to the rack 308, which in turn presses the rack 308 tightly against the cam 306, thus improving the effect of the cam 306 driving the rack 308 to slide up and down.

[0046] It should be noted that the elastic element 309 can also be other structures, such as an elastic sheet.

[0047] refer to Figure 3 and Figure 4 As shown, in some embodiments of the present invention, the cam 306 is detachably connected to the tension roller 304. Thus, when cleaning of the belt 200 is not required, the cam 306 can be separated from the tension roller 304. In this way, the tension roller 304 only needs to rotate itself to follow the movement of the belt 200, without needing to drive the transmission assembly 305 and the spray pipe 301, thereby making the belt 200 move more smoothly and requiring less driving force from the drive motor.

[0048] refer to Figure 3 and Figure 4As shown, in some embodiments of the present invention, one end of the tension roller 304 is provided with a spline groove 311, the inner end face of the spline groove 311 is provided with a threaded hole 312, the cam 306 is provided with an external spline, the external spline is inserted into the spline groove 311, the cam 306 is provided with a connecting hole, and a fastening bolt 313 is installed between the connecting hole and the threaded hole 312. In this way, through the cooperation between the external spline and the spline groove 311, and the fastening effect of the fastening bolt 313, the cam 306 can be more securely installed on the tension roller 304.

[0049] refer to Figure 3 and Figure 4 As shown, in some embodiments of the present invention, the rack 308 can slide upwards to separate from the cam 306. When the cam 306 needs to be disassembled or assembled, the rack 308 is pushed upwards to slide it away from the cam 306, thus avoiding interference from the rack 308 in the disassembly or assembly of the cam 306, making the disassembly or assembly of the cam 306 more convenient.

[0050] refer to Figure 3 and Figure 4 As shown, in some embodiments of the present invention, a limiting member 310 is provided between the rack 308 and the mounting bracket 100. When the rack 308 slides upward to separate from the cam 306, the limiting member 310 can lock the rack 308 to restrict the sliding of the rack 308. For example, the limiting member 310 can be a limiting bolt, the rack 308 can be provided with a first positioning hole 314, and the mounting bracket 100 can be provided with a corresponding second positioning hole. When the rack 308 slides upward to a preset position and separates from the cam 306, the first positioning hole 314 and the second positioning hole are aligned. Then, by inserting the limiting member 310, the rack 308 can be restricted from sliding freely. Thus, when the cam 306 is disassembled or installed, the rack 308 can be prevented from sliding down freely and interfering with the installation of the cam 306. Moreover, after the cam 306 is disassembled, the rack 308 can also be prevented from sliding down freely and interfering with the tension roller 304.

[0051] It should be noted that the limiting component 310 can also be other suitable structures, such as a limiting pin.

[0052] refer to Figures 1 to 4 As shown, in some embodiments of the present invention, the mounting frame 100 is provided with a water collection box 102, and a water outlet pipe is provided at the bottom end of the water collection box 102. The tension roller 304 and the spray pipe 301 are located inside the water collection box 102. In this way, the water collection box 102 can not only collect cleaning water and avoid waste, but also play a certain role in blocking the cleaning water when the nozzle 302 sprays cleaning water, preventing the cleaning water from splashing randomly.

[0053] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A belt conveyor having a belt cleaning mechanism, characterized by, The utility model relates to a belt cleaning device, comprising: a mounting frame provided with two transmission wheels; a belt installed between the two transmission wheels, the belt having a conveying section and a return section; a cleaning mechanism including a spray pipe installed on the mounting frame and extending along the width direction of the belt, the spray pipe being provided with a plurality of nozzles arranged along the length direction of the spray pipe, the nozzles facing the return section, wherein the spray pipe can swing around its own axis to adjust the spray direction of the nozzles; the cleaning mechanism further comprising two guide rollers rotatably installed on the mounting frame and arranged along the conveying direction of the belt, the guide rollers extending along the width direction of the belt and being in contact with the surface of the return section away from the conveying section; a tension roller rotatably installed on the mounting frame and extending along the width direction of the belt, the tension roller being located below the two guide rollers and being in contact with the surface of the return section facing the conveying section; the part of the return section between the guide rollers and the tension roller forming a cleaning section, the spray pipe being provided with two, the two spray pipes being located on the opposite sides of the two cleaning sections respectively, the nozzles facing the cleaning sections; a transmission assembly being provided between the tension roller and the two spray pipes, when the belt drives the tension roller to rotate, the tension roller drives the two spray pipes to swing simultaneously through the transmission assembly; the swinging directions of the two spray pipes being opposite.

2. The belt conveyor having a belt cleaning mechanism according to claim 1, characterized by, The transmission assembly comprises: a cam connected to one end of the tension roller; two gears corresponding to the cam and connected to one end of the two spray pipes respectively; a rack slidably installed on the mounting frame in the vertical direction, the rack extending in the vertical direction, the rack being located between the two gears; wherein the two gears are engaged with the two sides of the rack respectively, and the top end of the cam abuts against the bottom end of the rack.

3. The belt conveyor having a belt cleaning mechanism according to claim 2, characterized by, The transmission assembly further comprises: a resilient member provided between the rack and the mounting frame to apply a downward elastic force to the rack.

4. The belt conveyor having a belt cleaning mechanism according to claim 2, characterized by, The cam is detachably connected to the tension roller.

5. The belt conveyor having a belt cleaning mechanism according to claim 2, characterized by, The rack can slide upward to be separated from the cam.

6. The belt conveyor having a belt cleaning mechanism according to claim 5, characterized by A limiting member is provided between the rack and the mounting frame, when the rack slides upward to be separated from the cam, the limiting member can lock the rack to limit the sliding of the rack.

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