Working condition self-adaptive bucket elevator

Abstract

The utility model belongs to the field of material conveying, particularly relates to a working condition self-adaptive bucket elevator, and provides the following scheme aiming at the problems of low energy efficiency and quick abrasion of the existing bucket elevator when the feeding quantity fluctuates: the working condition self-adaptive bucket elevator comprises a shell, a rotating shaft, a belt pulley, a belt, a winnowing pan, a feeding hopper, an opening and closing mechanism and a motor, according to the intelligent feeding device, no-load operation of the winnowing pan can be effectively avoided, the energy efficiency utilization rate is remarkably improved, electric energy waste is reduced, the structural design is simple, operation is convenient and fast, accurate control over the opening and closing mechanism is achieved through motor power, and the intelligent feeding device is suitable for popularization and application. Extra energy is not needed, the feeding amount is intelligently and adaptively adjusted, the service life of equipment is prolonged, and the maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of material conveying, in particular to a working condition adaptive bucket elevator. Background Art

[0002] In the technical field of material conveying, as an important vertical lifting device, the bucket elevator is widely used in various industrial production lines. Its main function is to efficiently and continuously convey bulk materials (such as coal, ore, grain, etc.) from a lower place to a higher place to meet the requirements of the production process. The structural design of the traditional bucket elevator mainly includes key components such as a casing, a motor, a driving belt, and buckets fixed on the belt. During operation, the motor rotates through the driving belt, causing the buckets to scoop up materials in sequence and lift them along the inner wall of the casing to a specified height and then discharge them, completing the vertical conveying process of the materials.

[0003] However, the bucket elevators in the prior art generally use a fixed-frequency motor as the power source. Although this design method can achieve stable material conveying, there are significant energy efficiency utilization problems. Specifically, the rotational speed of the fixed-frequency motor is constant during operation, resulting in the production capacity of the bucket elevator (i.e., the amount of materials conveyed per unit time) also remaining fixed. However, in actual production applications, the feeding amount of materials often fluctuates due to various factors such as raw material supply and production scheduling, and does not always remain stable. When the feeding amount is much lower than the designed production capacity of the bucket elevator, the bucket elevator still needs to operate at its maximum capacity, which not only causes serious waste of electric energy, but also may lead to an increase in the proportion of empty bucket operation, accelerating equipment wear and shortening the service life. Therefore, a working condition adaptive bucket elevator is proposed. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the disadvantages in the prior art that the feeding amount of materials often fluctuates due to various factors such as raw material supply and production scheduling, and does not always remain stable. When the feeding amount is much lower than the designed production capacity of the bucket elevator, the bucket elevator still needs to operate at its maximum capacity, which not only causes serious waste of electric energy, but also may lead to an increase in the proportion of empty bucket operation, accelerating equipment wear and shortening the service life, and to propose a working condition adaptive bucket elevator.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A working condition adaptive bucket elevator, comprising a machine shell. The top and bottom of the inner walls on both sides of the machine shell are rotatably connected with rotating shafts. Both of the rotating shafts rotatably penetrate through the inner walls on both sides of the machine shell. The circumferential outer walls of both of the rotating shafts are fixedly connected with belt pulleys. Both of the belt pulleys are located inside. A same belt is arranged in a transmission manner between both of the belt pulleys. A plurality of buckets are fixedly connected to one side of the belt. Two chutes one are opened at the bottom of one side of the machine shell. A feed hopper for feeding is slidably arranged at the bottom of one side of the machine shell. The feed hopper is communicated with the machine shell. An installation seat one is arranged below the feed hopper. A discharge port for discharging is arranged at the top of the other side of the machine shell. A motor is arranged at the top of one side of the machine shell. The output shaft of the motor is in transmission connection with the rotating shaft located at the top of the machine shell through a speed reducer. An installation seat two is arranged at the bottom of one side of the machine shell. A opening and closing mechanism for controlling feeding is arranged at the top of the installation seat two.

[0007] In a possible design, two T-shaped limit sliders are fixedly connected to the side of the feed hopper close to the machine shell. The T-shaped limit sliders are slidably connected in the corresponding chutes one. A same baffle is slidably connected to the sides of both of the T-shaped limit sliders close to each other. The baffle is located inside the machine shell. A connection block two for connecting the opening and closing mechanism is fixedly connected to one side of the baffle. A connecting rod for connecting the opening and closing mechanism is fixedly connected to one side of the connection block two.

[0008] In a possible design, an installation block is fixedly connected to the inclined bottom of the feed hopper. A resisting rod is fixedly connected to the bottom of the installation block. A same spring is fixedly connected between the bottom of the installation block and the top of the installation seat one. The spring is sleeved on the circumferential outer wall of the resisting rod.

[0009] In a possible design, a button switch is fixedly connected to the top of the installation seat one. The button switch is located directly below the resisting rod. The button switch is connected to the motor through an electric wire.

[0010] In a possible design, a limit block one for restricting the movement of the baffle is fixedly connected to the inner wall of one side of the machine shell.

[0011] In a possible design, the opening and closing mechanism includes a first cylinder, a second cylinder, and a turntable. The first cylinder and the second cylinder are both fixedly connected to the top of the second mounting seat. A first connecting block is fixedly connected between the bottom of the circumferential outer wall of the first cylinder and the bottom of the circumferential outer wall of the second cylinder. A base is fixedly connected to the top of the circumferential outer wall of the first cylinder. A lever is rotatably connected between the inner walls on both sides of the base through a pin shaft. A through chute two is formed on one side of the lever. A through groove is formed on one side of the top of the lever. Through chute threes are formed on the inner walls on both sides of the through groove. The turntable is fixedly connected to the circumferential outer wall of a rotating shaft located at the bottom of the machine housing. A dial block is fixedly connected to the side of the turntable away from the machine housing. The dial block is eccentrically arranged on one side of the turntable. The dial block penetrates through the chute two.

[0012] In a possible design, a first piston is slidably connected to the circumferential inner wall of the first cylinder. The circumferential outer wall of the first piston is tightly connected to the circumferential inner wall of the first cylinder. A first piston rod is fixedly connected to the center of the top of the first piston. The first piston rod slidably penetrates through the top of the first cylinder. A extension shaft is fixedly connected to the top of the first piston rod. The extension shaft penetrates through the two chute threes. Limit blocks two for preventing the extension shaft from disengaging from the chute threes are fixedly connected to both ends of the extension shaft. A second piston is slidably connected to the circumferential inner wall of the second cylinder. The circumferential outer wall of the second piston is tightly connected to the circumferential inner wall of the second cylinder. A second piston rod is fixedly connected to the center of the top of the second piston. The second piston rod slidably penetrates through the top of the second cylinder. The top of the second piston rod is fixedly connected to the bottom side of a connecting rod. A support rod is fixedly connected between the circumferential outer wall of the second piston rod and the bottom of the connecting rod.

[0013] In a possible design, a first one-way valve for controlling the gas flow direction is fixedly communicated with the circumferential outer wall of the first cylinder. A second one-way valve for controlling the gas flow direction is arranged inside the first connecting block. The second one-way valve fixedly penetrates through the first connecting block. The second one-way valve is communicated with the first cylinder and the second cylinder respectively. A pressure relief valve for preventing the internal air pressure of the second cylinder from being too high is fixedly communicated with the circumferential outer wall of the second cylinder.

[0014] In the present application, when people need to lift materials vertically, they first pour the materials into the feed hopper. The poured materials will drive the feed hopper to slide downward along the slide slot one. At the same time, the feed hopper drives the push rod to move downward through the mounting block and energizes the spring. When the materials accumulate to a certain amount, the top of the push rod contacts the button switch and presses the button switch. Then the button switch starts the motor, and the motor drives the bucket to rotate through the rotating shaft. At this time, the rotating shaft at the bottom of the rotating shaft drives the turntable to rotate, and then the turntable drives the lever to reciprocate through the dial block and the slide slot two, and then the lever drives the extension shaft and the piston rod one to reciprocate up and down through the slide slot three, and then the piston rod one drives the piston one to continuously suck the outside air into the cylinder one through the one-way valve one and compress it into the cylinder two through the one-way valve two. , and then the compressed air in cylinder two pushes piston two to move upward and then drives the baffle to move upward through piston rod two, support rod, connecting rod and connecting block two, thereby allowing the material to enter the interior of the casing and be scooped up in sequence through the bucket to transport the material to a high place and discharge it through the discharge port. At the same time, the pressure relief valve can prevent the air pressure in cylinder two from being too high and damaging cylinder two. When the weight of the material in the feed hopper is not enough to make the push rod press the button switch, the spring will push the mounting block upward under the action of elastic force and drive the push rod to separate from the button switch. The disconnection of the button switch causes the motor to stop rotating and no longer compresses air into cylinder two. The compressed air in cylinder two will slowly leak out, and then the baffle will slowly move downward under the influence of gravity until it contacts the limit block one to close the feed port.

[0015] In the utility model, the working condition adaptive bucket elevator can automatically adjust the opening and closing state of the feed port according to the amount of feed through the arrangement of the feed hopper, T-shaped limit slider and baffle. When the material in the feed hopper accumulates to a certain weight, the push button switch is triggered by the push rod, and then the motor and the opening and closing mechanism are started to realize automatic feeding. When the material is reduced to a level not enough to trigger the push button switch, the feed port is automatically closed, which effectively avoids no-load operation, significantly improves energy efficiency and reduces power waste.

[0016] In the utility model, the working condition adaptive bucket elevator can realize precise control of the baffle by setting the opening and closing mechanism and utilizing the linkage of components such as cylinder 1, cylinder 2, lever and turntable. This design is not only simple in structure and convenient in operation, but also can utilize the rotational power of the motor to convert it into the reciprocating swing of the lever through the periodic movement of the turntable and the dial block, thereby driving the air pressure change in cylinder 2 to promote the lifting and lowering of the baffle. This automatic control mechanism does not require an additional power source and realizes efficient conversion and utilization of energy.

[0017] In the present utility model, for the working condition adaptive bucket elevator, through the linkage between the motor and the opening and closing mechanism, the intelligent adaptive adjustment of the feeding amount of the bucket elevator is realized. When the feeding amount increases, the motor starts and drives the opening and closing mechanism to work, keeping the feeding port in an open state to ensure the smooth entry of materials. When the feeding amount decreases to a level insufficient to trigger the motor, the feeding port automatically closes, effectively avoiding the empty running of the buckets, extending the service life of the equipment, and reducing the maintenance cost.

[0018] In the present utility model, the bucket elevator can automatically adjust the opening and closing state of the feeding port according to the amount of the feeding material. When the material in the feeding hopper accumulates to a certain weight, the push rod is used to trigger the push button switch, thereby starting the motor and the opening and closing mechanism to achieve automatic feeding. When the material decreases to a level insufficient to trigger the push button switch, the feeding port automatically closes, effectively avoiding the empty running, significantly improving the energy efficiency utilization rate, reducing the waste of electric energy, and enabling the precise control of the baffle. This design is not only simple in structure and convenient to operate, but also can utilize the rotational power of the motor. Through the periodic movement of the turntable and the slider, it is converted into the reciprocating swing of the lever, and then drives the air pressure change in the second cylinder to push the lifting of the baffle. This automatic control mechanism does not require an additional power source, realizes the efficient conversion and utilization of energy, and can also realize the intelligent adaptive adjustment of the feeding amount of the bucket elevator. When the feeding amount increases, the motor starts and drives the opening and closing mechanism to work, keeping the feeding port in an open state to ensure the smooth entry of materials. When the feeding amount decreases to a level insufficient to trigger the motor, the feeding port automatically closes, effectively avoiding the empty running of the buckets, extending the service life of the equipment, and reducing the maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the overall structure of a working condition adaptive bucket elevator proposed by the present utility model;

[0020] Figure 2 is a front view of the overall structure at the top of a working condition adaptive bucket elevator proposed by the present utility model;

[0021] Figure 3 is a rear view of the overall structure at the top of a working condition adaptive bucket elevator proposed by the present utility model;

[0022] Figure 4 is a schematic diagram of the internal structure at the bottom of a working condition adaptive bucket elevator proposed by the present utility model;

[0023] Figure 5 is a schematic diagram of the partial structure at the bottom of a working condition adaptive bucket elevator proposed by the present utility model;

[0024] Figure 6 is a sectional view of the opening and closing mechanism in a working condition adaptive bucket elevator proposed by the present utility model;

[0025] Figure 7 for Figure 6 A partial enlarged view of point A in the middle.

[0026] In the figure: 1, casing; 2, slide slot 1; 3, rotating shaft; 4, bucket; 5, feed hopper; 6, discharge port; 7, motor; 8, opening and closing mechanism; 9, mounting block; 10, push rod; 11, spring; 12, mounting seat 1; 13, push button switch; 14, mounting seat 2; 15, limit block 1; 16, cylinder 1; 17, cylinder 2; 18, connecting block 1; 19, base; 20, lever; 21, slide slot 2; 22, slide slot 3; 23, turntable; 24, dial block; 25, T-shaped limit slider; 26, baffle; 27, connecting block 2; 28, connecting rod; 29, piston rod 1; 30, piston 1; 31, piston rod 2; 32, piston 2; 33, one-way valve 1; 34, one-way valve 2; 35, pressure relief valve; 36, extension shaft; 37, limit block 2; 38, support rod. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0028] Example 1

[0029] Reference Figures 1-7 A bucket elevator comprises a casing 1, and the top and bottom of the inner walls on both sides of the casing 1 are rotatably connected with a rotating shaft 3, and the rotating shaft 3 is fixed to the inner walls on both sides of the casing 1 through a bearing seat to ensure stable and smooth rotation. Two rotating shafts 3 penetrate the inner walls on both sides of the casing 1, and the outer walls of the circumference thereof are fixedly connected with a belt pulley, and the two belt pulleys are connected by the same belt transmission to achieve synchronous rotation. A plurality of evenly distributed buckets 4 are fixedly connected to one side of the belt for scooping and transporting materials.

[0030] Two slide grooves 1-2 are provided at the bottom of one side of the casing 1, and the feed hopper 5 is slidably installed in the two slide grooves 1-2, so that the feed hopper 5 can slide up and down along the slide groove 1-2. The feed hopper 5 is connected to the casing 1, allowing materials to enter the casing 1 from the feed hopper 5. A mounting seat 12 is provided below the feed hopper 5 for the subsequent installation of the spring 11.

[0031] The other side of the housing 1 is provided with a discharge port 6 for discharging the lifted material. A motor 7 is installed on one side of the top of the housing 1, and its output shaft is connected to the rotating shaft 3 at the top of the housing 1 through a reducer to achieve power transmission.

[0032] On the bottom of one side of the casing 1, there is also a second mounting seat 14, on which an opening and closing mechanism 8 is mounted. The specific structure of the opening and closing mechanism 8 is as follows: It includes a first cylinder 16 and a second cylinder 17, both fixedly mounted on the top of the second mounting seat 14. The first cylinder 16 and the second cylinder 17 are fixedly connected through a first connecting block 18 to form an integral structure. The top of the first cylinder 16 is mounted with a lever 20 through a base 19. On one side of the lever 20, there is a second chute 21 and a through groove, and on both sides of the through groove, there are third chutes 22.

[0033] A turntable 23 is fixedly connected to the rotating shaft 3 at the bottom of the casing 1. An eccentric block 24 is provided on one side of the turntable 23. The eccentric block 24 is slidably embedded in the second chute 21 of the lever 20. When the turntable 23 rotates with the rotating shaft 3, the eccentric block 24 will push the lever 20 to swing reciprocally.

[0034] An extension shaft 36 is slidably mounted in the through groove of the lever 20. Both ends of the extension shaft 36 are fixed in the third chute 22 through second limit blocks 37 to prevent it from disengaging. The bottom of the extension shaft 36 is fixedly connected to a first piston rod 29 in the first cylinder 16. The first piston rod 29 moves up and down with the swing of the lever 20, thereby driving the first piston 30 to reciprocate in the first cylinder 16.

[0035] A second piston 32 is provided in the second cylinder 17. The top of the second piston 32 is connected to a connecting rod 28 through a second piston rod 31. The connecting rod 28 is further connected to a baffle 26 in the feed hopper 5 through a second connecting block 27. When the first piston 30 moves in the first cylinder 16, through the action of a first one-way valve 33 and a second one-way valve 34, the gas is compressed into the second cylinder 17, pushing the second piston 32 and the connecting rod 28 to move upward, thereby driving the baffle 26 to open and allowing the material to enter the casing 1.

[0036] In addition, on one side of the feed hopper 5 close to the casing 1, there is a T-shaped limit slider 25, which is slidably connected in the first chute 2 to ensure the stable sliding of the feed hopper 5. The bottom of the feed hopper 5 is connected to the first mounting seat 12 through a mounting block 9 and a spring 11. A resisting rod 10 is provided at the bottom of the mounting block 9, and a push button switch 13 is provided below the resisting rod 10 for controlling the start of the motor 7.

[0037] This application can be used in the field of material transportation, and can also be used in other fields applicable to this application.

[0038] Embodiment 2

[0039] Reference Figures 1-7 On the basis of Embodiment 1, an improvement is made: A working condition adaptive bucket elevator, which is applied to the field of material transportation. In order to enhance the stability of the structure, the same support rod 38 is fixedly connected between the circumferential outer wall of the second piston rod 31 and the bottom of the connecting rod 28. A first limit block 15 for restricting the movement of the baffle 26 is fixedly connected to the inner wall of one side of the casing 1.

[0040] However, as is well known to those skilled in the art, the working principle and wiring method of the motor 7 are common knowledge, which belong to conventional means or well-known common sense and will not be elaborated here. Those skilled in the art can make arbitrary selections according to their needs or convenience.

[0041] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, making equivalent replacements or changes should be covered within the protection scope of the present utility model.

Claims

1. A working condition adaptive bucket elevator, comprising a housing (1), characterized in that: The top and bottom of the inner walls on both sides of the casing (1) are rotatably connected to a rotating shaft (3), the two rotating shafts (3) are rotatably connected to the inner walls on both sides of the casing (1), the circumferential outer walls of the two rotating shafts (3) are fixedly connected to a belt pulley, the two belt pulleys are located inside the casing (1), the same belt is provided between the two belt pulleys for transmission, a plurality of buckets (4) are fixedly connected to one side of the belt, two slide grooves (2) are provided at the bottom of one side of the casing (1), and a feeding slot (2) for feeding materials is slidably provided at the bottom of one side of the casing (1) A hopper (5) is provided, wherein the feed hopper (5) is connected to the casing (1), a mounting seat (12) is provided below the feed hopper (5), a discharge port (6) for discharging materials is provided at the top of the other side of the casing (1), a motor (7) is provided at the top of one side of the casing (1), an output shaft of the motor (7) is connected to a rotating shaft (3) located at the top of the casing (1) via a reducer, a mounting seat (14) is provided at the bottom of one side of the casing (1), and an opening and closing mechanism (8) for controlling the feeding is provided at the top of the mounting seat (14).

2. The working condition adaptive bucket elevator according to claim 1, characterized in that: Two T-shaped limit sliders (25) are fixedly connected to one side of the feed hopper (5) close to the casing (1), and the T-shaped limit sliders (25) are slidably connected in the corresponding slide groove (2). The two T-shaped limit sliders (25) are slidably connected to the same baffle (26) on the side close to each other, and the baffle (26) is located inside the casing (1). One side of the baffle (26) is fixedly connected to a connecting block (27) for connecting to an opening and closing mechanism (8), and one side of the connecting block (27) is fixedly connected to a connecting rod (28) for connecting to the opening and closing mechanism (8).

3. The working condition adaptive bucket elevator according to claim 2, characterized in that: The bottom of the inclined surface of the feed hopper (5) is fixedly connected to a mounting block (9), the bottom of the mounting block (9) is fixedly connected to a push rod (10), and a spring (11) is fixedly connected between the bottom of the mounting block (9) and the top of the mounting seat (12), and the spring (11) is sleeved on the circumferential outer wall of the push rod (10).

4. The working condition adaptive bucket elevator according to claim 3, characterized in that: A button switch (13) is fixedly connected to the top of the first mounting seat (12); the button switch (13) is located directly below the stop rod (10); and the button switch (13) is connected to the motor (7) via an electric wire.

5. The working condition adaptive bucket elevator according to claim 2, characterized in that: A limiting block (15) for limiting the movement of the baffle (26) is fixedly connected to an inner wall of one side of the housing (1).

6. The working condition adaptive bucket elevator according to claim 1, characterized in that: The opening and closing mechanism (8) comprises a cylinder 1 (16), a cylinder 2 (17) and a rotating disk (23), wherein the cylinder 1 (16) and the cylinder 2 (17) are both fixedly connected to the top of the mounting seat 2 (14), a connecting block 1 (18) is fixedly connected between the bottom of the circumferential outer wall of the cylinder 1 (16) and the bottom of the circumferential outer wall of the cylinder 2 (17), a base (19) is fixedly connected to the top of the circumferential outer wall of the cylinder 1 (16), and a lever (20) is rotatably connected between the inner walls on both sides of the base (19) via a pin shaft. ), a through slide groove 2 (21) is provided on one side of the lever (20), a through through groove is provided on one side of the top of the lever (20), and through slide grooves 3 (22) are provided on both inner walls of the through groove. The turntable (23) is fixedly connected to the circumferential outer wall of the rotating shaft (3) located at the bottom of the housing (1), and a shifting block (24) is fixedly connected to the side of the turntable (23) away from the housing (1). The shifting block (24) is eccentrically arranged on one side of the turntable (23), and the shifting block (24) runs through the second slide groove (21).

7. The working condition adaptive bucket elevator according to claim 6, characterized in that: The circumferential inner wall of the cylinder (16) is slidably connected to a piston (30), the circumferential outer wall of the piston (30) is tightly connected to the circumferential inner wall of the cylinder (16), the top center of the piston (30) is fixedly connected to a piston rod (29), the piston rod (29) slides through the top of the cylinder (16), the top of the piston rod (29) is fixedly connected to an extension shaft (36), the extension shaft (36) passes through two slide grooves (22), and both ends of the extension shaft (36) are fixedly connected to prevent the extension shaft (36) from escaping from the slide grooves (22). ), the circumferential inner wall of the cylinder (17) is slidably connected to the piston (32), the circumferential outer wall of the piston (32) is tightly connected to the circumferential inner wall of the cylinder (17), the top center of the piston (32) is fixedly connected to the piston rod (31), the piston rod (31) slides through the top of the cylinder (17), the top of the piston rod (31) is fixedly connected to the bottom side of the connecting rod (28), and the same support rod (38) is fixedly connected between the circumferential outer wall of the piston rod (31) and the bottom of the connecting rod (28).

8. The working condition adaptive bucket elevator according to claim 6, characterized in that: The circumferential outer wall of the cylinder one (16) is fixedly connected to a one-way valve one (33) for controlling the flow direction of gas. The interior of the connecting block one (18) is provided with a one-way valve two (34) for controlling the flow direction of gas. The one-way valve two (34) is fixedly passed through the connecting block one (18). The one-way valve two (34) is respectively connected to the cylinder one (16) and the cylinder two (17). The circumferential outer wall of the cylinder two (17) is fixedly connected to a pressure relief valve (35) for preventing excessive gas pressure inside the cylinder two (17).

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