An automatic cleaning device for lifting belt machine rake nails

Abstract

The application discloses an automatic cleaning device for lifting belt conveyors, which comprises a cleaning row plate arranged horizontally above a conveying belt, a plurality of cleaning grooves are formed in the cleaning row plate, the plurality of cleaning grooves correspond to a plurality of harrow pins of a single-row harrow pin assembly one by one, a cleaning brush is arranged on the inner wall of each cleaning groove, the left and right ends of the cleaning row plate are respectively installed on left and right side plates through transmission mechanisms, the two side plates are respectively arranged outside two side chains and detachably installed on the rack of the lifting belt conveyor, and the cleaning row plate is driven to reciprocate through the two transmission mechanisms, so that the cleaning brushes in the plurality of cleaning grooves of the cleaning row plate clean the plurality of harrow pins upwards and downwards. Compared with the prior art, the application has the following advantages: the automatic and effective cleaning of the harrow pins on the lifting belt conveyor is realized.

Description

Technical Field

[0001] This invention relates to the field of mechanical equipment technology, and in particular to an automatic cleaning device for rake nails on a conveyor belt. Background Technology

[0002] The lifting belt of the elevator conveyor is fixed to two side chains at its left and right ends, respectively. Multiple rows of rake spike assemblies are spaced apart on the lifting belt, with each row consisting of multiple rake spikes arranged along the left-right direction of the lifting belt. Existing elevator conveyors use brush rollers to clean the lifting belt. During actual production, the brush rollers and rake spikes make linear contact. While this method is effective for cleaning the lifting belt itself, it is ineffective for cleaning the rake spikes. Material adhering to the rake spikes is not effectively removed, leading to inconvenience and time-consuming maintenance, and increasing the risk of insect infestations. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide an automatic cleaning device for rake nails on a conveyor belt, so as to achieve automatic and effective cleaning of rake nails on the conveyor belt.

[0004] This invention is achieved through the following technical solution:

[0005] An automatic cleaning device for rake nails on a conveyor belt is disclosed. The conveyor belt has its left and right ends fixed to two side chains. Multiple rows of rake nail assemblies are spaced apart on the conveyor belt. Each row of rake nail assemblies includes multiple rake nails arranged along the left and right direction of the conveyor belt. The cleaning device includes a cleaning plate that spans across the conveyor belt. The cleaning plate has multiple cleaning grooves, each corresponding to a rake nail in a single row of rake nail assemblies. Cleaning brushes are provided on the inner walls of the cleaning grooves. The left and right ends of the cleaning plate are respectively mounted on two side plates via transmission mechanisms. The two side plates are located outside the two side chains and are detachably mounted on the frame of the conveyor belt. The two transmission mechanisms drive the cleaning plate to reciprocate, causing the cleaning brushes in the multiple cleaning grooves on the cleaning plate to clean the multiple rake nails up and down.

[0006] Furthermore, each of the transmission mechanisms includes a four-bar linkage arranged front and rear and a transmission gear. The transmission gear is rotatably mounted on the side plate, and the teeth on the transmission gear mesh with the side chain on the corresponding side. The four-bar linkage includes an upper linkage, a front linkage, a lower linkage, and a rear linkage that are hinged end to end. The lower linkage is fixedly connected to the end of the cleaning plate, the upper linkage is fixed to the inside of the side plate, and the upper section of the rear linkage is hinged to the upper linkage via a hinge shaft. The top end of the rear linkage extends a certain distance beyond the upper linkage to form an extension section, and the top end of the extension section of the rear linkage is connected to the rear spring. At the end, the front end of the spring is fixed to the side plate, and the rear connecting rod is located inside the transmission gear. The middle section of the rear connecting rod has a V-shaped protrusion protruding towards the axis of the transmission gear. Multiple stop pins are evenly distributed circumferentially on the inner side of the transmission gear. The two sides of the V-shaped protrusion of the rear connecting rod slide in contact with two adjacent stop pins on the transmission gear. Through the operation of the side chain, the transmission gear is driven to rotate. The stop pins on the transmission gear drive the rear connecting rod to rotate around the hinge axis, thereby lifting the cleaning plate forward. After the cleaning plate reaches the top, it rotates back to its original position under the action of the spring.

[0007] Furthermore, a bearing housing is installed on the side plate, and the drive shaft of the transmission gear is rotatably mounted on the bearing housing.

[0008] Furthermore, the cleaning grooves on the cleaning plate are rectangular grooves.

[0009] Furthermore, three stop pins are evenly distributed circumferentially on the inner side of the transmission gear.

[0010] The present invention has the following advantages over the prior art:

[0011] 1. The present invention provides an automatic cleaning device for rake nails of a conveyor belt. Multiple cleaning grooves are cut into a cleaning plate spanning above the conveyor belt. Each cleaning groove corresponds one-to-one with a rake nail in a single-row rake nail assembly. Cleaning brushes are installed on the inner walls of the cleaning grooves. Two transmission mechanisms drive the cleaning plate to reciprocate, causing the cleaning brushes in the multiple cleaning grooves on the cleaning plate to scrape the rake nails up and down. This removes material adhering to the rake nails, resulting in more thorough and complete cleaning with significant cleaning effect. It also reduces the labor intensity of operators, saving time and effort, and eliminates insect infestations.

[0012] 2. The present invention provides an automatic cleaning device for rake nails on a lifting belt conveyor. In its transmission mechanism, the movement of the side chain drives the transmission gear to rotate. The circumferentially distributed stop pins on the driven gear then drive the rear connecting rod to rotate around the hinge shaft, thereby lifting the cleaning plate forward. After reaching the top, it rotates back to reset under the action of the spring, thus driving the cleaning plate to reciprocate, achieving effective cleaning of the rake nails. The entire transmission mechanism is ingeniously designed, and the power of the lifting belt conveyor itself can drive the cleaning plate to reciprocate, thereby achieving up and down scraping of the rake nails, saving power energy. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the present invention.

[0014] Figure 2 This is a structural diagram of the present invention in use.

[0015] Numbers in the diagram: 1 Side chain, 2 Rake nail, 3 Cleaning panel, 4 Sweeping groove, 5 Sweeping brush, 6 Side plate, 7 Drive gear, 8 Bearing seat, 9 Upper connecting rod, 10 Front connecting rod, 11 Lower connecting rod, 12 Rear connecting rod, 13 Hinge shaft, 14 Extension section, 15 Spring, 16 V-shaped protrusion, 17 Stop pin. Detailed Implementation

[0016] The embodiments of the present invention are described in detail below. These embodiments are implemented based on the technical solution of the present invention, and provide detailed implementation methods and specific operation processes. However, the scope of protection of the present invention is not limited to the following embodiments.

[0017] See Figures 1 to 2 This embodiment discloses an automatic cleaning device for rake nails on a conveyor belt. The left and right ends of the conveyor belt are fixed to two side chains 1. Multiple rows of rake nail assemblies are spaced apart on the conveyor belt. Each row of rake nail assemblies includes multiple rake nails 2 arranged along the left-right direction of the conveyor belt. The cleaning device includes a cleaning plate 3, which spans across the conveyor belt. Multiple cleaning grooves 4 are formed on the cleaning plate 3, each corresponding to a rake nail 2 in a single row of rake nail assemblies. The cleaning grooves 4 on the cleaning plate 3 are rectangular, and cleaning brushes 5 are provided on the inner walls of the grooves. The left and right ends of the cleaning plate 3 are respectively mounted on two side plates 6 via transmission mechanisms. The two side plates 6 are located outside the two side chains 1 and are detachably mounted on the frame of the conveyor belt. The side plates 6 can be detachably connected to the frame by screws. The two transmission mechanisms drive the cleaning plate 3 to reciprocate, causing the cleaning brushes 5 in the multiple cleaning grooves 4 on the cleaning plate 3 to clean the multiple rake nails 2 vertically.

[0018] Each transmission mechanism includes a four-bar linkage arranged in front and behind and a transmission gear 7. The transmission gear 7 is rotatably mounted on a side plate 6, and a bearing seat 8 is mounted on the side plate 6. The transmission shaft of the transmission gear 7 is rotatably mounted on the bearing seat 8. The teeth on the transmission gear 7 mesh with the side chain 1 on the corresponding side. The four-bar linkage includes an upper link 9, a front link 10, a lower link 11, and a rear link 12 that are hinged to each other in sequence. The lower link 11 is fixedly connected to the end of the cleaning plate 3. The upper link 9 is fixed to the inside of the side plate 6. The upper section of the rear link 12 is hinged to the upper link 9 through a hinge shaft 13. The top end of the rear link 12 extends a distance beyond the upper link 9 to form an extension section 14. The top end of the extension of the rear link 12 is connected to the rear end of the spring 15. The front end of the spring 15 is fixed to the side plate 6. The rear link 12 is located inside the transmission gear 7. The middle section of the rear link 12 is provided with a V-shaped protrusion 16 that protrudes towards the axis of the transmission gear 7. Multiple stop pins 17 are evenly distributed circumferentially on the inside of the transmission gear 7. In this embodiment, three stop pins 17 are evenly distributed circumferentially on the inside of the transmission gear 7. The two sides of the V-shaped protrusion 16 of the rear connecting rod 12 slide in contact with the two adjacent stop pins 17 on the transmission gear 7. Through the operation of the side chain 1, the transmission gear 7 is driven to rotate. The stop pins 17 on the transmission gear 7 drive the rear connecting rod 12 to rotate around the hinge shaft 13, thereby lifting the cleaning plate 3 forward. After the cleaning plate 3 reaches the top, it rotates back to reset under the action of the spring 15.

[0019] When the conveyor belt is stopped, and the rake nails 2 need to be cleaned, first install the two side plates 6 on the frame respectively, so that the multiple cleaning grooves 4 on the cleaning plate 3 correspond one-to-one with the multiple rake nails 2 of the single row rake nail assembly. When the lifting conveyor belt is started, the two side chains 1 begin to operate. The movement of each side chain 1 drives the transmission gear 7 to rotate. The stop pin 17 fixed on the transmission gear 7 drives the V-shaped protrusion 16 on the rear side of the rear connecting rod 12 to rise, thereby driving the rear connecting rod 12 to rotate around the hinge shaft 13. The spring 15 is stretched, and the lower connecting rod 11 at the bottom of the four-bar linkage will rotate forward and rise, thereby driving the cleaning plate 3 to rotate forward and rise. When the stop pin 17 reaches the apex of the V-shaped protrusion 16, the cleaning plate 3 reaches the highest point of lifting. When the stop pin 17 passes the apex of the V-shaped protrusion 16, the V-shaped protrusion 16 loses its lifting force. Under the action of the spring 15, the rear connecting rod 12 rotates in the opposite direction to reset, thereby driving the cleaning plate 3 to rotate backward and descend until the next stop pin 17 lifts the V-shaped protrusion 16 again, completing one cycle of the reciprocating motion of the cleaning plate 3. During the reciprocating motion of the cleaning plate 3, the cleaning brushes 5 in the multiple cleaning grooves 4 on the cleaning plate 3 scrape the multiple rakes 2 one by one, effectively cleaning the material adhering to the rakes 2. This reduces the workload of operators during equipment maintenance, improves work efficiency, and also eliminates pests.

[0020] After cleaning the rake nails 2, remove the two side plates 6 from the frame and take away the entire cleaning device. This will not interfere with the normal operation of the conveyor belt next time.

[0021] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatic cleaning device for rake nails on a lifting belt conveyor, wherein the left and right ends of the lifting belt of the lifting belt are respectively fixed to two side chains on the left and right, and multiple rows of rake nail assemblies are spaced apart on the lifting belt, each row of rake nail assemblies including multiple rake nails arranged along the left and right direction of the lifting belt, characterized in that: The cleaning device includes a cleaning plate that is horizontally positioned above the conveyor belt. The cleaning plate has multiple cleaning grooves, each corresponding to a rake in a single-row rake assembly. Cleaning brushes are provided on the inner walls of the cleaning grooves. The left and right ends of the cleaning plate are respectively mounted on two side plates via transmission mechanisms. The two side plates are located outside two side chains and are detachably mounted on the frame of the lifting belt conveyor. The two transmission mechanisms drive the cleaning plate to reciprocate, so that the cleaning brushes in the multiple cleaning grooves on the cleaning plate clean the multiple rakes up and down. Each of the aforementioned transmission mechanisms includes a four-bar linkage arranged front to back and a transmission gear. The transmission gear is rotatably mounted on the side plate, and the teeth on the transmission gear mesh with the side chain on the corresponding side. The four-bar linkage includes an upper linkage, a front linkage, a lower linkage, and a rear linkage that are hinged end to end. The lower linkage is fixedly connected to the end of the cleaning plate, the upper linkage is fixed to the inside of the side plate, and the upper section of the rear linkage is hinged to the upper linkage via a hinge shaft. The top end of the rear linkage extends a certain distance beyond the upper linkage to form an extension section. The top end of the extension section of the rear linkage is connected to the rear end of a spring. The front end of the spring is fixed to the side plate, and the rear connecting rod is located inside the transmission gear. The middle section of the rear connecting rod has a V-shaped protrusion protruding towards the axis of the transmission gear. Multiple stop pins are evenly distributed circumferentially on the inner side of the transmission gear. The two sides of the V-shaped protrusion of the rear connecting rod slide in contact with two adjacent stop pins on the transmission gear. Through the operation of the side chain, the transmission gear is driven to rotate. The stop pins on the transmission gear drive the rear connecting rod to rotate around the hinge axis, thereby lifting the cleaning plate forward. After the cleaning plate reaches the top, it rotates back to its original position under the action of the spring.

2. The automatic cleaning device for rake nails of a conveyor belt as described in claim 1, characterized in that: A bearing housing is installed on the side plate, and the drive shaft of the transmission gear is rotatably mounted on the bearing housing.

3. The automatic cleaning device for rake nails of a conveyor belt as described in claim 1, characterized in that: The cleaning grooves on the cleaning panel are rectangular grooves.

4. The automatic cleaning device for rake nails of a conveyor belt as described in claim 1, characterized in that: The transmission gear has three stop pins evenly distributed circumferentially on its inner side.

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