Cleaning type bucket elevator

Abstract

The utility model relates to a cleaning type bucket elevator in the field of elevator equipment. The cleaning type bucket elevator comprises an engine base, an elevator body, a driving chain wheel, a driven chain wheel, an elevating chain and an elevating hopper, a cleaning cabin is arranged below the discharge port, a vibrating roller and an air knife are arranged in the cleaning cabin, a plurality of flexible vibrating hammers are spirally and uniformly distributed on the roller surface of the vibrating roller, and the flexible vibrating hammers can respectively form alternate knocking on the bottom of the lifting hopper and the bottom of the discharge port in the rotating process; the air knife is mounted at the bottom of the cleaning cabin, an air outlet of the air knife is obliquely upwards close to the outer edge of the lifting hopper, and the air knife does not interfere with each lifting hopper and the flexible rapping hammer; and a driving motor is arranged above the machine body and is in transmission connection with the driving chain wheel and the vibrating roller respectively. The cleaning type bucket elevator has a more perfect self-cleaning function, residual powder materials on the inner wall of the discharging port of the elevator and the inner wall of each lifting hopper can be cleaned at the same time, and the lifting and conveying efficiency of the bucket elevator can be guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of elevators, and in particular relates to a clean bucket elevator. Background Art

[0002] Bucket elevator is a lifting and conveying equipment suitable for bulk materials such as granular materials or powder materials. Its lifting hopper generally adopts a vertical chain circulation lifting method. Compared with the climbing belt conveyor, it has the advantages of large lifting height, small footprint, good sealing, and high environmental protection. The main production process of alumina ceramic powder is to use alumina powder as raw material and calcine it at high temperature to make α-alumina (commonly known as corundum) with higher stability. When the finished alumina ceramic powder is bagged and packaged, a bucket elevator is needed to lift the finished powder to the filling silo and then quantitatively bag it. Due to the high fineness of alumina ceramic powder, some materials are prone to adhere to the inner wall of the lifting hopper in the return section or the inner wall of the elevator outlet during the lifting and conveying process. Especially when the air humidity is high and the material is damp, it is easier to increase the adhesion and accumulation of materials in each lifting hopper, occupying a certain internal space of the lifting hopper, thereby affecting the lifting and conveying efficiency of the bucket elevator. At present, some bucket elevators have added self-cleaning functions. For example, the patent document with publication number CN109319382B records a bucket elevator with automatic cleaning function. This solution installs a swing cleaning brush on the inner wall of the buffer chamber at the outlet of the bucket elevator. However, it can only clean the inner wall of the outlet of the elevator, and still cannot solve the problem of material residue on the inner wall of the bucket elevator. Therefore, it is necessary to continue to improve and perfect the self-cleaning function of the bucket elevator. Utility Model Content

[0003] In view of the above situation, the utility model provides a clean bucket elevator with a more complete self-cleaning function, which can simultaneously clean the residual powder material on the inner wall of the elevator discharge port and the inner wall of each lifting hopper, helping to ensure the lifting and conveying efficiency of the bucket elevator.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A clean bucket elevator comprises a machine base, a machine body vertically fixed above the machine base, a driving sprocket and a driven sprocket rotatably arranged at the upper and lower ends of the machine body, two lifting chains annularly connected between the left and right sides of the driving and driven sprockets, and a plurality of lifting buckets fixedly arranged at equal intervals on the outside of the two lifting chains; a feed port is arranged on the front side of the lower end of the machine body, and a discharge port is arranged on the rear side of the upper end of the machine body.

[0006] A cleaning cabin is provided below the discharge port, the front side of which is connected to the machine body through the front side, and a cleaning component is provided in the cleaning cabin.

[0007] The cleaning assembly includes a vibrating roller and an air knife. Both left and right ends of the vibrating roller are rotatably connected to the cleaning cabin. A plurality of flexible vibrating hammers are evenly arranged in a spiral on the rotating roller surface of the vibrating roller. During the rotation process, each flexible vibrating hammer can knock on the bottom of the lifting hopper and the bottom of the discharge port in turn.

[0008] The wind knife is installed at the bottom of the cleaning cabin, and the air outlet of the wind knife is inclined upward and close to the outer edge of the lifting hopper, and the wind knife does not interfere with each other with the lifting hoppers and the flexible vibration hammer.

[0009] A driving motor is arranged above the machine body, and the driving motor is respectively connected to the driving sprocket and the vibrating roller through a transmission assembly.

[0010] Furthermore, the rapping roller is a cylindrical drum horizontally arranged along the left-right direction, and its left and right ends are respectively coaxially fixed with rotating roller shafts, and the two rotating roller shafts are respectively rotatably connected to the left and right side walls of the cleaning cabin through bearing seats.

[0011] Furthermore, each of the flexible rapping hammers comprises a flexible spring and a rapping ball, the inner end of each flexible spring is vertically fixed to the circumferential surface of the rapping roller, and the outer end of each flexible spring is correspondingly fixed to a rapping ball as a striking hammer head.

[0012] Furthermore, the bottom and rear side wall of the cleaning cabin are integrated arc-shaped slope panels, and the arc radius thereof is adapted to the length of each flexible rapping hammer on the rapping roller; the top of the slope panel is fixedly connected to the bottom of the discharge port, and the bottom of the slope panel is fixedly connected to the side wall of the machine body.

[0013] Furthermore, the front and rear sides of the upper part of the cleaning cabin are respectively provided with a front lever and a rear lever for shifting the rapping balls, and the left and right ends of the two levers are respectively fixedly connected to the left and right side walls of the cleaning cabin, and the multiple rapping balls can knock on the lifting hopper in turn to shake off the residual materials adhering to the inner side of the lifting hopper. Similarly, when the rapping balls rotate to the bottom of the rear lever, they are also blocked and deformed by the rear lever, and then continuously knock and vibrate the inclined bottom plate of the discharge port to prevent the materials from adhering to the inner wall of the discharge port.

[0014] Furthermore, the wind knife is a long stainless steel wind knife arranged in the left-right direction, with its top air outlet facing the outer edge of the slot of the lifting hopper in the return section above it, and its bottom air inlet passing through the bottom of the cleaning cabin and connected to the air inlet pipe. Preferably, each of the lifting hoppers is an arc-shaped long slot structure, and the wind blown in by the wind knife can cut in from the outer edge of the lifting hopper, and cooperate with the continuous knocking and rapping effect of the rapping ball, so as to more thoroughly clean up the material residue inside the lifting hopper.

[0015] Furthermore, the bottom of the discharge port is a sloped surface with a high front and a low back, and a flexible baffle plate extending forward is fixedly arranged on the front side of the bottom, the front edge of the flexible baffle plate is close to the outer edge of the lifting hopper, and is mainly used to receive the materials thrown out of each lifting hopper to the discharge port. Preferably, the flexible baffle plate is an elastic rubber plate.

[0016] Further, the transmission assembly includes a driving wheel mounted on the output shaft of the driving motor, a driven wheel 1 mounted on one end of the driving sprocket, and a driven wheel 2 mounted on one end of the vibrating roller, the driven wheel 1 is a double-groove pulley, a transmission belt 1 is connected between the driving wheel and the driven wheel 1, a transmission belt 2 is connected between the driven wheel 1 and the driven wheel 2, and the diameter of the driven wheel 1 is greater than the diameter of the driven wheel 2. Preferably, a protective cover is also provided on the outside of the driving motor and the transmission assembly.

[0017] The utility model also includes other components that enable it to be used normally, which are all conventional means in the field. In addition, the devices or components not limited in the utility model, such as the base, body, lifting bucket, main and driven sprockets and inlet and outlet ports of the bucket elevator, as well as the double-groove pulley and stainless steel air knife, all adopt the existing technology in the field.

[0018] The beneficial effects of the utility model are as follows:

[0019] The cleaning bucket elevator is equipped with a vibration cleaning device and an air blowing cleaning device, which makes the elevator have a more complete self-cleaning function. It can clean the residual powder material on the inner wall of the elevator discharge port and the inner wall of each lifting hopper at the same time, solve the problem of blockage of the elevator discharge port and residual material in the lifting hopper, and ensure the material lifting and conveying efficiency of the bucket elevator. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Schematic diagram of the structure of the clean bucket elevator in the embodiment.

[0021] Figure 2 for Figure 1 A schematic diagram of the enlarged structure inside the cleaning cabin in the middle part A.

[0022] Figure 3 It is a schematic diagram of the three-dimensional structure of the lifting hopper in the embodiment.

[0023] Figure 4 It is a schematic diagram of the three-dimensional structure of the rapping roller in the embodiment.

[0024] Figure 5 Schematic diagram of the three-dimensional structure of the wind knife in the embodiment. DETAILED DESCRIPTION

[0025] The technical solution of the present utility model will be clearly and completely described below in conjunction with specific embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, rather than all embodiments.

[0026] It should be noted that the terms "upper", "lower", "front", "back", "left", "right", "inside", "outside" and the like indicating directions or positional relationships are based on the accompanying drawings and are only for the convenience of description.

[0027] Example

[0028] like Figure 1-5 As shown, a clean bucket elevator comprises a base 1, a body 2 vertically fixed above the base, a driving sprocket 3 and a driven sprocket 4 rotatably arranged at the upper and lower ends of the body, two lifting chains 5 annularly connected between the left and right sides of the driving and driven sprockets, and a plurality of lifting buckets 6 fixedly arranged at equal intervals on the outside of the two lifting chains; a feed port 7 is arranged at the front side of the lower end of the body, and a discharge port 8 is arranged at the rear side of the upper end of the body. The above are all conventional structures of bucket elevators, belonging to the existing technology in this field, and the specific settings are not repeated here.

[0029] A cleaning cabin 9 is provided below the discharge port, the front side of which is connected to the machine body, and a cleaning component is provided in the cleaning cabin.

[0030] The cleaning assembly includes a vibrating roller 10 and an air knife 11. Both left and right ends of the vibrating roller are rotatably connected to the cleaning cabin. A plurality of flexible vibrating hammers are evenly arranged in a spiral on the rotating roller surface of the vibrating roller. During the rotation process, each flexible vibrating hammer can knock on the bottom of the lifting hopper and the bottom of the discharge port in turn.

[0031] The wind knife is installed at the bottom of the cleaning cabin, and the air outlet of the wind knife is inclined upward and close to the outer edge of the lifting hopper, and the wind knife does not interfere with each other with the lifting hoppers and the flexible vibration hammer.

[0032] A driving motor 12 is arranged above the machine body, and the driving motor is respectively connected to the driving sprocket and the rapping roller through a transmission assembly.

[0033] The vibrating roller is a cylindrical roller horizontally arranged in the left-right direction, and the left and right ends thereof are coaxially fixed with rotating roller shafts 13, and the two rotating roller shafts are rotatably connected to the left and right side walls of the cleaning cabin through bearing seats. The bearing seats adopt flanged UCF seat bearings.

[0034] Each of the flexible rapping hammers comprises a flexible spring 14 and a rapping ball 15. The inner end of each flexible spring is vertically fixed to the circumferential surface of the rapping roller, and the outer end of each flexible spring is correspondingly fixed to a rapping ball as a striking hammer head.

[0035] The bottom and rear side wall of the cleaning cabin are integrated arc-shaped slope panels 16, whose arc radius is adapted to the length of each flexible rapping hammer on the rapping roller; the top of the slope panel is fixedly connected to the bottom of the discharge port, and the bottom of the slope panel is fixedly connected to the side wall of the machine body.

[0036] A front lever 17 and a rear lever 18 for shifting the rapping balls are respectively provided on the front and rear sides of the upper part of the cleaning cabin, and the left and right ends of the two levers are respectively fixedly connected to the left and right side walls of the cleaning cabin.

[0037] When the front lever rotates to this point, it will block the rapping ball, because the rapping ball is connected to a flexible spring. As the rapping roller and the rapping ball continue to rotate, the flexible spring will bend and deform, and then pass the blockage of the front lever. At the same time, the elastic potential energy accumulated by the flexible spring is released instantly, driving the rapping ball to violently hit the bottom of the trough of the lifting hopper. Since the surface of the rapping roller is spirally provided with multiple rapping balls, and the rotation speed of the rapping roller is greater than the rotation speed of the driving sprocket, the multiple rapping balls can form a rapid rotational knocking on the lifting hopper in turn, similar to the wheel finger plucking string, so that the lifting hopper is knocked and vibrated continuously for many times, and the residual materials adhering to the inner side of the lifting hopper are shaken off. Similarly, when the rapping ball rotates to the bottom of the rear lever, it is also blocked and deformed by the rear lever, and then forms a continuous knocking and vibration on the inclined bottom plate of the discharge port, preventing the material from adhering to the inner wall of the discharge port.

[0038] The wind knife is a long stainless steel wind knife arranged in the left and right direction, with its top air outlet facing the outer edge of the slot of the return section lifting hopper obliquely above it, and its bottom air inlet passing through the bottom of the cleaning cabin and connected to the air inlet pipe 26, which is externally connected to the compressed air network.

[0039] Each of the lifting hoppers is an arc-shaped long trough structure. The wind blown in by the wind knife can cut into the outer edge of the lifting hopper and form a strong scraping and cutting effect along the arc-shaped inner wall of the lifting hopper. Combined with the continuous knocking and vibrating effect of the vibrating ball, the material residue inside the lifting hopper can be more thoroughly cleaned.

[0040] The bottom of the discharge port is a sloped surface with a high front and a low back, and a flexible baffle plate 19 extending forward is fixedly arranged on the front side of the bottom, the front edge of the flexible baffle plate is close to the outer edge of the lifting hopper, and is mainly used to receive the materials thrown out of each lifting hopper to the discharge port, and to reduce the materials falling from the gap between the lifting hopper and the machine body as much as possible without hindering the passage of the lifting hopper, which helps to improve the material lifting and conveying efficiency. The flexible baffle plate is an elastic rubber plate.

[0041] The transmission assembly includes a driving wheel 20 installed on the output shaft of the driving motor, a driven wheel 1 21 installed at one end of the driving sprocket, and a driven wheel 2 22 installed at one end of the vibrating roller. The driven wheel 1 is a double-groove pulley. A transmission belt 1 23 is connected between the driving wheel and the driven wheel 1. A transmission belt 24 is connected between the driven wheel 1 and the driven wheel 2. The diameter of the driven wheel 1 is larger than the diameter of the driven wheel 2, so that the rotation speed of the vibrating roller is greater than the rotation speed of the driving sprocket. A protective cover 25 is also provided on the outside of the driving motor and the transmission assembly to play a role in safety protection, waterproofing and dustproofing.

[0042] The technical solution of the present invention is not limited to the above-mentioned specific embodiments. Without departing from the scope and spirit of the described embodiments, many modifications and changes are obvious to ordinary technicians in this technical field. Any technical deformation made within the spirit and principles of the present invention falls within the protection scope of the present invention.

Claims

1. A clean bucket elevator, comprising a base, a body vertically fixed above the base, a driving sprocket and a driven sprocket rotatably arranged at the upper and lower ends of the body, two lifting chains annularly connected between the left and right sides of the driving and driven sprockets, and a plurality of lifting buckets fixedly arranged at equal intervals on the outside of the two lifting chains; a feed port is arranged at the front side of the lower end of the body, and a discharge port is arranged at the rear side of the upper end of the body, characterized in that: A cleaning cabin connected to the machine body is provided below the discharge port, a cleaning assembly is provided in the cleaning cabin, the cleaning assembly includes a vibrating roller and an air knife, both left and right ends of the vibrating roller are rotatably connected to the cleaning cabin, a plurality of flexible vibrating hammers are evenly arranged in a spiral on the rotating roller surface of the vibrating roller, and each flexible vibrating hammer can respectively strike the bottom of the lifting hopper and the bottom of the discharge port in turn during rotation; the air knife is installed at the bottom of the cleaning cabin, the air outlet of the air knife is inclined upward and close to the outer edge of the lifting hopper, and the air knife and each lifting hopper and the flexible vibrating hammer do not interfere with each other; a driving motor is provided above the machine body, and the driving motor is respectively connected to the driving sprocket and the vibrating roller through a transmission assembly.

2. A clean bucket elevator according to claim 1, characterized in that: The vibrating roller is a cylindrical roller horizontally arranged in the left-right direction, and its left and right ends are respectively coaxially fixed with rotating roller shafts, and the two rotating roller shafts are respectively rotatably connected to the left and right side walls of the cleaning cabin through bearing seats.

3. A clean bucket elevator according to claim 2, characterized in that: Each of the flexible rapping hammers comprises a flexible spring and a rapping ball. The inner end of each flexible spring is vertically fixed to the circumferential surface of the rapping roller, and each rapping ball is correspondingly fixed to the outer end of each flexible spring.

4. A clean bucket elevator according to claim 3, characterized in that: The front side of the cleaning cabin is connected to the machine body, and the bottom and rear side wall of the cleaning cabin are integrated arc-shaped slope panels, the arc radius of which is adapted to the length of each flexible rapping hammer on the rapping roller; the top of the slope panel is fixedly connected to the bottom of the discharge port, and the bottom of the slope panel is fixedly connected to the side wall of the machine body.

5. A clean bucket elevator according to claim 4, characterized in that: A front lever and a rear lever for shifting the rapping balls are respectively arranged on the front and rear sides of the upper part of the cleaning cabin, and the left and right ends of the two levers are respectively fixedly connected to the left and right side walls of the cleaning cabin.

6. A clean bucket elevator according to claim 5, characterized in that: The wind knife is a long stainless steel wind knife arranged in the left and right direction, with its top air outlet facing the outer edge of the slot of the lifting hopper in the return section obliquely above it, and its bottom air inlet passing through the bottom of the cleaning cabin and connected to the air inlet pipe.

7. A clean bucket elevator according to claim 1, characterized in that: The bottom of the discharge port is a sloped surface that is higher in the front and lower in the back, and a flexible baffle plate extending forward is fixedly arranged on the front side of the bottom, and the front edge of the flexible baffle plate is close to the outer edge of the lifting hopper.

8. The clean bucket elevator according to claim 1, characterized in that: The transmission assembly includes a driving wheel installed on the output shaft of the driving motor, a driven wheel 1 installed at one end of the driving sprocket, and a driven wheel 2 installed at one end of the vibrating roller. The driven wheel 1 is a double-groove pulley, a transmission belt 1 is connected between the driving wheel and the driven wheel 1, and a transmission belt 2 is connected between the driven wheel 1 and the driven wheel 2.

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