Automatic weight hanging device of coal feeder

Abstract

The invention discloses an automatic weight hanging device of a coal feeder, which belongs to the technical field of coal feeders, and comprises a rotating shaft, a connecting shaft, a lifting structure and a fixing structure, the rotating shaft drives a roller to convey coal and provides support for a fixing plate; the lifting structure drives a screw rod through a servo motor to drive a lifting frame to realize weight lifting, and a buffer column is matched with a buffer plate to reduce impact; according to the fixing structure, flexible passing and reliable fixing of the connecting shaft are achieved through the inclined face of the clamping plate and the elastic body. Symmetrically arranged lifting and fixing structures ensure that the weights are uniformly stressed. According to the device, the full-process automation of the hanging weight verification of the coal feeder is realized, the verification accuracy is effectively improved, and the manual operation error is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of coal feeder, in particular to an automatic weight hanging device of coal feeder. BACKGROUND

[0002] During the long-term operation of the traditional coal feeder, the weighing accuracy is prone to deviation due to factors such as belt wear and material adhesion, resulting in inaccurate coal feeding amount and affecting the stability and efficiency of the entire production process. In order to ensure the accuracy of the weighing system of the coal feeder, it needs to be checked regularly. The previous weight hanging checking work relies on manual operation, which not only consumes a lot of manpower and time cost, but also the consistency and accuracy of manual operation cannot be guaranteed, and the operation difference of different operators may cause deviation in the checking result. With the development trend of intelligentization and automation of the coal industry, the demand for automation and precision of coal feeder weight hanging checking is increasingly urgent. Therefore, the present application provides an automatic weight hanging device of coal feeder. SUMMARY

[0003] In view of the above technical deficiencies, the purpose of the present application is to provide an automatic weight hanging device of coal feeder, which realizes automatic lifting and precise fixing of the weight by servo motor driving through mechanical structure design, effectively solving the traditional checking problem.

[0004] To solve the above technical problems, the present application adopts the following technical scheme: the present application provides an automatic weight hanging device of coal feeder, which comprises:

[0005] A rotating shaft, which is the center shaft of the roller, is rotatably installed on the support shell;

[0006] A connecting shaft, which is connected with the weight, has a support plate fixed at one end;

[0007] A lifting structure, which comprises a lifting frame, can drive the support plate to move up and down;

[0008] A fixing structure, which comprises a fixing plate rotatably sleeved on the rotating shaft;

[0009] Wherein, the inside of the fixing plate is provided with a through groove, the connecting shaft passes through the through groove, and the inside of the through groove is provided with a clamping plate, when the connecting shaft passes through the clamping plate, the clamping plate can fix the connecting shaft.

[0010] Preferably, the width of the through groove is matched with the connecting shaft, the connecting shaft can move freely in the inside of the through groove, recessed holes are arranged on both sides of the through groove, and the clamping plate is slidably installed in the recessed holes by the first elastic body.

[0011] Preferably, the clamping plate is provided with inclined surfaces on both sides of the length direction of the through groove.

[0012] Preferably, the lifting mechanism comprises a lifting shell, the inside of the lifting shell is provided with a lifting plate capable of moving up and down, the lifting plate is connected with a lifting frame, and the lifting plate is movably connected with the upper section of the support plate.

[0013] Preferably, the lifting frame comprises symmetrically arranged clamping jaws, and the bottom of the support plate is provided with clamping grooves matched with the clamping jaws.

[0014] Preferably, a buffer column is fixed to the middle part of the lifting frame, a buffer plate is installed in the inside of the support plate through a second elastic body, and the buffer plate is movably connected with the buffer column.

[0015] Preferably, the support shell is clamped on the outside of the lifting shell and fixed with the lifting shell through bolts.

[0016] Preferably, the inside of the lifting shell is provided with a sliding channel, a screw rod is rotatably installed in the inside of the sliding channel, the inside of the lifting plate is provided with a screw hole, and the screw rod passes through and engages with the screw hole.

[0017] Preferably, a servo motor is fixed on the lifting shell, and the output shaft of the servo motor is connected with the screw rod through the lifting shell.

[0018] Preferably, the lifting mechanism and the fixing structure are both two, and are symmetrically arranged on the two sides of the roller and the weight.

[0019] The present application has the following beneficial effects:

[0020] Through the lifting structure and the fixing structure, the weight can be accurately sent to the weighing part of the coal feeder and reliably fixed. The lifting structure and the fixing structure symmetrically arranged on the two sides of the roller and the weight make the weight bear force evenly during lifting and fixing, effectively avoid the weight shaking or deviating due to uneven force, ensure the smooth and accurate hanging code verification process, greatly improve the accuracy of the verification of the weighing system of the coal feeder, provide a strong guarantee for the subsequent stable and accurate coal feeding of the coal feeder, and reduce the adverse effects of inaccurate coal feeding on the production process.

[0021] The slope design of the clamping plate enables the continuous shaft to realize flexible switching through the fixed clamping plate under different force conditions. Under the action of a larger external force (such as when the lifting structure quickly pushes the weight upward), the continuous shaft can smoothly pass through the clamping plate to reach the designated position; when only the weight of the weight is applied, the clamping plate can reliably fix the continuous shaft, adapt to various working conditions in the hanging code process, improve the applicability of the device, and ensure that the hanging code verification work can be smoothly completed under various complex working conditions. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 The present application is a structural schematic diagram.

[0023] Figure 2 Connection diagram of the lifting housing, support housing and fixing plate.

[0024] Figure 3 Connection diagram of the lifting housing, support housing and fixing plate. Figure 2 Sectional view in A-A direction.

[0025] Figure 4 Internal view of the lifting housing.

[0026] Figure 5 Connection diagram of the lifting housing, support housing and fixing plate. Figure 4 Enlarged view at B in

[0027] Figure 6 Internal sectional view of the fixing plate.

[0028] Figure 7 Internal sectional view of the lifting housing.

[0029] Figure 8 Perspective view of the present weight hanging device.

[0030] In the figure: 1, lifting housing, 2, lifting plate, 3, support housing, 4, lifting frame, 5, support plate, 6, fixing plate, 61, through slot, 7, connecting shaft, 8, weight, 9, roller, 10, rotating shaft, 11, screw rod, 12, first elastic body, 13, buffer column, 14, clamping plate, 15, second elastic body, 16, clamping jaw, 17, buffer plate. DETAILED DESCRIPTION

[0031] The present application will be described in detail below with specific examples, but is not limited to the application.

[0032] Example 1

[0033] As shown in the figure, in the present embodiment, a kind of automatic weight hanging device of coal feeder is provided, including rotating shaft 10, connecting shaft 7, lifting structure and fixed structure. Figures 1-8 Rotating shaft 10 is the center axis of roller 9, rotating shaft 10 is rotatably installed on support housing 3, and rotating shaft 10 rotates under the driving of power source such as motor, and then drives roller 9 to rotate, so that the belt installed on roller 9 operates, realizes the function of coal feeder conveying coal. At the same time, rotating shaft 10 provides rotating support for fixing plate 6.

[0034] Connecting shaft 7 is connected with weight 8, one end of connecting shaft 7 is fixed with support plate 5, and the other end is connected with weight 8, which bears the gravity of weight 8. When lifting structure drives support plate 5 to rise, support plate 5 pushes connecting shaft 7 to move upwards, so that weight 8 approaches the weighing part of coal feeder.

[0035]

[0036] ​The lifting mechanism includes a lifting frame 4, which can drive the support plate 5 to move up and down, taking the structure including the lifting shell 1, the lifting plate 2, the screw rod 11, the servo motor, etc. as an example. After the servo motor is started, the output shaft drives the screw rod 11 to rotate. Since the lifting plate 2 is internally provided with a screw hole engaged with the screw rod 11, the rotation of the screw rod 11 causes the lifting plate 2 to move up and down along the axial direction of the screw rod 11 under the limitation of the slide. The lifting plate 2 is connected with the lifting frame 4, the pawl 16 on the lifting frame 4 is adapted with the clamping groove at the bottom of the support plate 5, thereby driving the support plate 5 to move up and down, and further realizing the lifting of the connecting shaft 7 and the weight 8.

[0037] The fixing mechanism includes a fixing plate 6 rotatably sleeved on the rotating shaft 10.

[0038] The inside of the fixing plate 6 is provided with a through groove 61, the connecting shaft 7 passes through the through groove 61, and the inside of the through groove 61 is provided with a clamping plate 14. When the connecting shaft 7 passes through the clamping plate 14, the clamping plate 14 can fix the connecting shaft 7. The fixing plate 6 is rotatably sleeved on the rotating shaft 10, and can rotate relative to the rotating shaft 10 to adapt to different working conditions of the coal feeder belt during operation. The width of the through groove 61 in the fixing plate 6 is adapted to the connecting shaft 7. When the connecting shaft 7 passes through the clamping plate 14, if the connecting shaft 7 is subjected to an external force (such as a force from the lifting structure pushing the weight 8 to rise), the inclined surfaces on both sides of the connecting shaft 7 will press the clamping plate 14, so that the clamping plate 14 slides into the recess hole against the elastic force of the first elastic body 12, and the connecting shaft 7 can pass through. When the external force disappears or only the weight of the weight 8 is applied, the clamping plate 14 returns to the original position under the action of the first elastic body 12, and limits the connecting shaft 7, preventing the weight 8 from falling, and realizing the fixation of the hanging weight.

[0039] The support shell 3 is clamped outside the lifting shell 1 and fixed with the lifting shell 1 by bolts. This connection mode enables the support shell 3 to provide stable support for the lifting shell 1, and also facilitates the assembly and disassembly of the device during installation and maintenance. During the operation of the equipment, the support shell 3 bears part of the gravity and vibration generated during work of the lifting shell 1 and the entire hanging weight device, and transmits these forces to the foundation structure, ensuring the installation stability of the lifting structure and the entire hanging weight device, so that the device can reliably operate during work.

[0040] The lifting housing 1 has an internal slide rail, inside which a screw 11 is rotatably mounted. The lifting plate 2 has an internal screw hole through which the screw 11 passes and engages. The screw 11 is rotatably mounted in the slide rail, with one end connected to the output shaft of the servo motor and the other end fixed to the lifting housing 1 by a bearing. After the servo motor starts, the screw 11 rotates and engages with the screw hole of the lifting plate 2, converting the rotation of the screw 11 into the linear motion of the lifting plate 2. This allows the lifting plate 2 to move up and down within the slide rail. The cooperation between the slide rail and the screw 11 enables precise control and guidance of the movement of the lifting plate 2, ensuring that the lifting frame 4 and the weight 8 rise and fall vertically and smoothly, thus improving the operating accuracy of the device.

[0041] A servo motor is fixed on the lifting housing 1. The output shaft of the servo motor passes through the lifting housing 1 and is connected to the screw 11. By precisely controlling the rotation of the screw 11, the lifting speed, position, and start / stop of the lifting plate 2, lifting frame 4, and weight 8 can be precisely controlled. For example, when the calibration begins, the servo motor drives the screw 11 to raise the weight 8 to the weighing position; after the calibration is completed, the servo motor reverses to lower the weight 8 back to the initial position.

[0042] There are two lifting mechanisms and two fixed structures, symmetrically arranged on both sides of the roller 9 and the weight 8. When the weight is hung, the lifting frames 4 on both sides simultaneously drive the support plates 5 to rise, so that the weight 8 is smoothly brought close to the weighing part of the coal feeder. The connecting shaft 7 passes through the through slots 61 of the fixed plates 6 on both sides, and the clamping plates 14 on both sides simultaneously limit and fix the connecting shaft 7. During the lifting process, the structures on both sides share the weight of the weight 8 and the force generated by its movement, maintaining the balance of the device.

[0043] Example 2

[0044] like Figures 1-8 As shown, based on Embodiment 1, this embodiment provides a lifting function, as detailed below:

[0045] The width of the through groove 61 is adapted to the connecting shaft 7, allowing the connecting shaft 7 to move freely within the through groove 61. Recesses are provided on both side walls of the through groove 61. The locking plate 14 is slidably mounted inside the recesses via the first elastic body 12. When the connecting shaft 7 passes the locking plate 14, the inclined surfaces on both sides of the connecting shaft 7 first contact the locking plate 14. As the connecting shaft 7 continues to move, the inclined surfaces exert a horizontal force on the locking plate 14. This force causes the locking plate 14 to overcome the elastic force of the first elastic body 12 and slide into the recesses, allowing the connecting shaft 7 to pass through. After the connecting shaft 7 has passed through, if the external force disappears or it is only subject to the weight of the weight 8 itself, the elastic force of the first elastic body 12 causes the locking plate 14 to reset, locking the connecting shaft 7 and restricting its movement within the through groove 61.

[0046] The two sides of the clamping plate 14 along the length direction of the through groove 61 are provided with inclined surfaces, when the connecting shaft 7 is subjected to a large pressure (such as a large thrust generated when the lifting structure pushes the weight 8 to quickly rise), the inclined surfaces on both sides of the connecting shaft 7 are in contact with the clamping plate 14, and the inclined surfaces decompose the large pressure into horizontal and vertical components. The horizontal component pushes the clamping plate 14 to slide into the recess hole against the elastic force of the first elastic body 12, so that the connecting shaft 7 can smoothly pass between the two clamping plates 14. When the connecting shaft 7 passes, if it is only subjected to the gravity of the weight 8, since the horizontal component of the gravity is small, it is not enough to push the clamping plate 14 against the elastic force of the first elastic body 12, the clamping plate 14 returns to the initial position under the action of the first elastic body 12, clamping the connecting shaft 7 and limiting its movement. Through the design of the inclined surface, the passing and fixing problems of the connecting shaft 7 under different force conditions are ingeniously solved. Under the action of a large external force, it is ensured that the connecting shaft 7 can smoothly pass through the clamping plate 14 to reach the specified position.

[0047] Embodiment three

[0048] As Figures 1-8 shown, on the basis of embodiment one and embodiment two, the embodiment provides a lifting mechanism driving mode, specifically as follows:

[0049] The lifting mechanism includes a lifting shell 1, the inside of the lifting shell 1 is provided with a lifting plate 2 capable of moving up and down, the lifting plate 2 is connected with a lifting frame 4, and the lifting plate 2 is movably connected with the upper section of a support plate 5. Inside the lifting shell 1, a servo motor is started, and its output shaft drives a screw rod 11 to rotate. Since the screw hole in the lifting plate 2 is engaged with the screw rod 11, and the lifting plate 2 can only move up and down along the slide under the restriction of the slide, the rotation of the screw rod 11 promotes the lifting plate 2 to move up and down along the slide. The lifting plate 2 is connected with the lifting frame 4, and when the lifting plate 2 rises or falls, it drives the lifting frame 4 to move synchronously. The clamping jaw 16 on the lifting frame 4 cooperates with the clamping groove at the bottom of the support plate 5, thereby driving the support plate 5 to move up and down, realizing the lifting of the connecting shaft 7 and the weight 8.

[0050] The lifting frame 4 includes symmetrical clamping jaws 16, and the bottom of the support plate 5 is provided with a clamping groove matched with the clamping jaw 16. When the lifting frame 4 is driven by the lifting plate 2 to rise or fall, the clamping jaw 16 is inserted into the clamping groove and tightly cooperates with the clamping groove, thereby driving the support plate 5 to move up and down synchronously. The support plate 5 is fixedly connected with the connecting shaft 7, thereby realizing the lifting operation of the connecting shaft 7 and the weight 8.

[0051] The middle part of the lifting frame 4 is fixed with a buffer column 13, and the inside of the support plate 5 is installed with a buffer plate 17 through a second elastic body 15. The buffer plate 17 is movably connected with the buffer column 13. During the lifting or lowering of the lifting frame 4, when the buffer column 13 gradually approaches the buffer plate 17 inside the support plate 5, the buffer column 13 first contacts the buffer plate 17. With the continuous movement of the lifting frame 4, the buffer column 13 generates pressure on the buffer plate 17, and the buffer plate 17 compresses the second elastic body 15. During the compression, the second elastic body 15 absorbs and buffers the impact force caused by the movement of the lifting frame 4, slows down the lifting or lowering speed of the support plate 5, and avoids rigid impact. When the lifting frame 4 moves reversely, the second elastic body 15 gradually restores to its original state, and pushes the buffer plate 17 and the support plate 5 to move reversely. The buffer structure effectively reduces the impact force on the weight 8 and the support plate 5 during lifting.

[0052] Working principle:

[0053] The automatic weight hanging device of the coal feeder mainly cooperates with a rotating shaft 10, a connecting shaft 7, a lifting structure, and a fixing structure. The rotating shaft 10 serves as the central shaft of the roller 9 and rotates under the drive of a power source such as a motor, thereby driving the roller 9 and the belt to operate, realizing coal conveying, and providing rotating support for the fixed plate 6. The connecting shaft 7 has one end connected with the weight 8 and the other end fixed with the support plate 5, which is used to bear the gravity of the weight 8. The lifting structure drives the support plate 5 to move up and down through the lifting frame 4, thereby realizing the approach or departure of the weight 8 to the weighing part of the coal feeder. The fixing structure limits and fixes the connecting shaft 7 through the clamping plate 14 inside the fixed plate 6 when the connecting shaft 7 passes, thereby completing the weight hanging operation of the weight 8.

[0054] After the servo motor is started, the output shaft drives the screw rod 11 to rotate. Since the lifting plate 2 is internally provided with screw holes engaged with the screw rod 11 and can only move up and down along the slide under the limitation of the slide, the rotation of the screw rod 11 promotes the lifting plate 2 to move up and down along the slide. The lifting plate 2 is connected with the lifting frame 4, and when the lifting plate 2 rises or falls, it drives the lifting frame 4 to move synchronously. The symmetrical clamping jaws 16 arranged on the lifting frame 4 are adapted with the clamping grooves at the bottom of the support plate 5, the clamping jaws 16 are inserted into the clamping grooves, and the support plate 5 is driven to move up and down, thereby realizing the lifting of the connecting shaft 7 and the weight 8. During the lifting process, if the lifting frame 4 rises or falls too fast, the buffer column 13 will contact the buffer plate 17 installed inside the support plate 5 through the second elastic body 15, the buffer column 13 generates pressure on the buffer plate 17, and the second elastic body 15 is compressed, thereby absorbing and buffering the impact force caused by the movement of the lifting frame 4, slowing down the lifting speed of the support plate 5, and avoiding rigid impact. When the lifting frame 4 moves reversely, the second elastic body 15 restores to its original state, and pushes the buffer plate 17 and the support plate 5 to move reversely.

[0055] The fixed plate 6 is rotatably sleeved on the rotating shaft 10 and can rotate relative to the rotating shaft 9 to adapt to different working conditions of the coal feeder belt. The through slot 61 in the fixed plate 6 is matched with the connecting shaft 7, and the connecting shaft 7 can freely move in the through slot 61. The side walls of the through slot 61 are provided with recessed holes, and the clamping plate 14 is slidably installed in the recessed holes by the first elastic body 12. When the connecting shaft 7 passes through the clamping plate 14, if the connecting shaft 7 is subjected to a larger external force such as the lifting of the lifting structure pushing weight 8, the inclined surfaces on both sides of the connecting shaft 7 will press the clamping plate 14, and the inclined surfaces will decompose the pressure into a horizontal directional component, which makes the clamping plate 14 slide into the recessed hole against the elastic force of the first elastic body 12, so that the connecting shaft 7 can pass through. When the external force disappears or is only subjected to the gravity of the weight 8, the horizontal directional component is small and insufficient to push the clamping plate 14 against the elastic force of the first elastic body 12, so that the clamping plate 14 returns to the original position under the action of the first elastic body 12 and clamps the connecting shaft 7, thereby limiting the movement of the connecting shaft 7 in the through slot 61 and preventing the weight 8 from falling, so as to fix the hanging weight.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate but not limit the technical solutions of the present application. Although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that the present application can still be modified or replaced equivalently without departing from the spirit and scope of the present application. Any modification or partial replacement should be covered in the scope of the claims of the present application.

Claims

1. An automatic coding device for a coal feeder, characterized in that, include: A rotating shaft (10) is the central shaft of the roller (9), and the rotating shaft (10) is rotatably mounted on the support housing (3); A connecting shaft (7) is connected to a weight (8), and a support plate (5) is fixed at one end of the connecting shaft (7); The lifting structure includes a lifting frame (4), which can drive the support plate (5) to move up and down; The fixed structure includes a fixed plate (6) that is rotatably sleeved on the rotating shaft (10); The fixing plate (6) has a through groove (61) inside, the connecting shaft (7) passes through the through groove (61), and the through groove (61) has a snap-fit ​​plate (14) inside. When the connecting shaft (7) passes through the snap-fit ​​plate (14), the snap-fit ​​plate (14) can fix the connecting shaft (7).

2. The automatic coding device for a coal feeder according to claim 1, characterized in that, The width of the through groove (61) is adapted to the connecting shaft (7), and the connecting shaft (7) can move freely inside the through groove (61). The two side walls of the through groove (61) are provided with recessed holes, and the snap-fit ​​plate (14) is slidably installed inside the recessed hole through the first elastic body (12).

3. The automatic coding device for a coal feeder according to claim 2, characterized in that, The snap-fit ​​plate (14) has inclined surfaces on both sides along the length of the through groove (61).

4. The automatic coding device for a coal feeder according to claim 1, characterized in that, The lifting mechanism includes a lifting housing (1), and a lifting plate (2) that can move up and down is installed inside the lifting housing (1). The lifting plate (2) is connected to the lifting frame (4) and is movably connected to the upper section of the support plate (5).

5. The automatic coding device for a coal feeder according to claim 4, characterized in that, The lifting frame (4) includes symmetrically arranged claws (16), and the bottom of the support plate (5) is provided with a slot that matches the claws (16).

6. The automatic coding device for a coal feeder according to claim 5, characterized in that, A buffer column (13) is fixed in the middle of the lifting frame (4), and a buffer plate (17) is installed inside the support plate (5) through a second elastic body (15). The buffer plate (17) is movably connected to the buffer column (13).

7. The automatic coding device for a coal feeder according to claim 1, characterized in that, The support housing (3) is snapped onto the outside of the lifting housing (1) and fixed to the lifting housing (1) with bolts.

8. The automatic coding device for a coal feeder according to claim 4, characterized in that, The lifting housing (1) has a slide rail inside, and a screw (11) is rotatably installed inside the slide rail. The lifting plate (2) has a screw hole inside, and the screw (11) passes through the screw hole and engages with the screw hole.

9. The automatic coding device for a coal feeder according to claim 8, characterized in that, A servo motor is fixed on the lifting housing (1), and the output shaft of the servo motor passes through the lifting housing (1) and is connected to the screw (11).

10. The automatic coding device for a coal feeder according to claim 1, characterized in that, There are two lifting mechanisms and two fixing structures, symmetrically arranged on both sides of the roller (9) and the weight (8).

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