Automatic grinding media replenishment equipment

Abstract

This utility model discloses an automatic grinding media replenishment device, including a storage tank and a support plate. A storage cavity is provided at the top of the storage tank. This utility model employs a screen, a discharge pipe, and a sealing plate. During operation, the steel balls to be replenished can be placed into the storage cavity using a hoisting device. Then, the natural rolling of the steel balls and the reciprocating movement of the push plate push the balls through the screen holes on the guide plate surface for discharge. Because the size of the screen holes is pre-set, only one steel ball falls into the discharge pipe at a time, enabling the steel balls to be stacked one by one for convenient subsequent replenishment. The removal time of the sealing plate can be controlled according to operational needs, thereby controlling the discharge time of the steel balls and ensuring good replenishment effect. This facilitates better use and has the advantages of good replenishment effect, high controllability, and strong practicality.

Description

Technical Field

[0001] This utility model relates to the field of grinding technology, and more specifically, to an automatic grinding media replenishment device. Background Technology

[0002] As mines develop towards larger scale and diversification, there is an increasing number of difficult-to-process ores, such as low-grade ores and those with polymetallic associated minerals. To improve mineral recovery and grade, grinding and other methods are needed to liberate valuable mineral elements from impurities before beneficiation. Ball mills are currently the main grinding equipment. The grinding action of ball mills is mainly accomplished by steel balls, and the consumption of steel balls is constantly increasing during production. To ensure grinding efficiency, steel balls need to be added frequently.

[0003] The existing publicly available technology, application number CN202221322728.2, describes a lifting steel ball replenishing device. This device uses a fixed sleeve installed inside an open cylinder. A rod passing through the sleeve pulls a conical plate at the bottom of the cylinder to open and close it, preventing the cylinder from falling after being filled with balls. The balls are automatically unloaded when the device is hoisted onto the ball mill's ball filling funnel. This device features a simple structure, safety and reliability, long service life, convenient operation, and low labor intensity.

[0004] However, the above-mentioned patent still has certain drawbacks in its use: due to the large fluctuations in the amount of ore fed into the mill and the significant changes in the daily processing volume, when the amount of ore fed into the mill changes, the manual ball feeding method cannot add balls according to the ball consumption ratio specified by the process. This may result in the ball consumption ratio not being met, thus affecting grinding efficiency, or exceeding the ball consumption ratio, thus wasting steel balls. At the same time, manual ball feeding cannot be done on time, resulting in reduced grinding efficiency or wasted steel balls during certain periods. Furthermore, manual ball feeding may result in inaccurate ball feeding, untimely ball feeding, and high labor intensity, thereby reducing the overall practicality and leaving room for improvement.

[0005] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides an automatic grinding media replenishment device, which has the advantages of good replenishment effect, high replenishment controllability, and strong practicality, thereby solving the problems mentioned in the background technology.

[0007] To achieve the advantages of good supplementation effect, high controllability of supplementation, and strong practicality, the specific technical solution adopted by this utility model is as follows:

[0008] An automatic grinding media replenishment device includes a storage tank and a support plate. The storage tank has a storage cavity at its top. A guide plate is inclinedly welded inside the storage cavity. A fixing plate is inclinedly welded between the bottom side of the guide plate and the inner wall of the storage tank. Several sets of springs are evenly installed on one side of the fixing plate. The other end of each spring is connected to a contact plate. A push plate is provided on one side of the contact plate and is slidably connected to the guide plate. Several sets of screen holes are evenly opened in the middle of the guide plate surface on one side of the push plate. A feeding pipe is installed at the bottom of each screen hole. One end of the feeding pipe passes through one side of the storage tank and connects to a discharge pipe. A temporary storage cavity is provided inside the discharge pipe. A sealing plate is attached to the bottom of the discharge pipe. A support plate is provided at the bottom of the sealing plate and is slidably connected to the sealing plate. Several sets of support legs are symmetrically welded on both sides of the bottom of the support plate. Interfaces are provided on the surfaces of both the sealing plate and the support plate.

[0009] Furthermore, a pipe support is installed on the outer periphery of the feeding pipe, and the pipe support is welded to the inner wall of the storage box.

[0010] Furthermore, a first hydraulic cylinder is installed at the top of one side surface inside the storage box.

[0011] Furthermore, through holes are provided on both the surface of the contact plate and the surface of the fixing plate, and the through holes are aligned with the first hydraulic cylinder.

[0012] Furthermore, second hydraulic cylinders are symmetrically installed on both sides of the top of the bearing plate, and one end of the second hydraulic cylinder is connected to the sealing plate through a connecting block.

[0013] Furthermore, symmetrical grooves are provided on both sides of the top of the guide plate.

[0014] Furthermore, the push plate has a groove on its surface.

[0015] Furthermore, the interface size is larger than the steel ball size.

[0016] Compared with the prior art, the present invention provides an automatic grinding media replenishment device, which has the following beneficial effects:

[0017] This utility model employs a sieve, a discharge pipe, and a sealing plate. During operation, the steel balls to be replenished can be placed into the storage chamber using a hoisting device. Then, the steel balls are pushed by the natural rolling of the steel balls and the reciprocating movement of the push plate, allowing them to be discharged through the sieve on the surface of the guide plate. Since the size of the sieve is set, it ensures that only one steel ball falls into the discharge pipe at a time, thus realizing the stacking operation of steel balls one by one, facilitating subsequent addition. Furthermore, the removal time of the sealing plate can be controlled according to operational needs, thereby controlling the discharge time of the steel balls, ensuring good ball replenishment effect, and facilitating better use. It has the advantages of good replenishment effect, high controllability of replenishment, and strong practicality. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the automatic grinding media replenishment device proposed in this utility model;

[0020] Figure 2 This is a schematic diagram of the material guide plate of this utility model;

[0021] Figure 3 This is a schematic diagram of the sealing plate of this utility model;

[0022] Figure 4 This is a structural schematic diagram of the support plate of this utility model.

[0023] In the picture:

[0024] 1. Storage bin; 2. Storage chamber; 3. Guide plate; 4. Screen hole; 5. Slide groove; 6. Push plate; 7. Contact plate; 8. Spring; 9. Fixing plate; 10. First hydraulic cylinder; 11. Through hole; 12. Feeding pipe; 13. Pipe support; 14. Second hydraulic cylinder; 15. Bearing plate; 16. Support leg; 17. Connecting interface; 18. Connecting block; 19. Sealing plate; 20. Discharge pipe; 21. Temporary storage chamber. Detailed Implementation

[0025] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0026] According to an embodiment of the present invention, an automatic grinding media replenishment device is provided.

[0027] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figure 1-4As shown, the automatic grinding media replenishment device according to an embodiment of this utility model includes a storage tank 1 and a support plate 15. A storage cavity 2 is formed at the top of the storage tank 1. A guide plate 3 is inclinedly welded inside the storage cavity 2. A fixing plate 9 is inclinedly welded between the bottom side of the guide plate 3 and the inner wall of the storage tank 1. Several sets of springs 8 are evenly installed on one side of the fixing plate 9. The other end of each spring 8 is connected to a contact plate 7. A push plate 6 is provided on one side of the contact plate 7, and the push plate 6 is slidably connected to the guide plate 3. Several sets of sieve holes 4 are evenly formed on one side of the push plate 6 at the middle of the surface of the guide plate 3. 4. A feeding pipe 12 is installed at the bottom. One end of the feeding pipe 12 passes through one side of the storage box 1 and is connected to the discharge pipe 20. The discharge pipe 20 has a temporary storage cavity 21 inside. A sealing plate 19 is attached to the bottom of the discharge pipe 20. A bearing plate 15 is provided at the bottom of the sealing plate 19, and the bearing plate 15 is slidably connected to the sealing plate 19. Several sets of support legs 16 are symmetrically welded on both sides of the bottom of the bearing plate 15. Both the surface of the sealing plate 19 and the surface of the bearing plate 15 are provided with interface 17. The storage box 1 has a metal box structure. A storage cavity 2 is opened at the top inside for storing steel balls. The guide plate 3 is inclinedly welded into the storage chamber 2. The inclination angle (selected by the operator, such as 15°-30°) must ensure that the steel balls can roll naturally to the screen hole 4, while avoiding excessive rolling speed that could cause steel balls to accumulate. The fixing plate 9 is inclinedly welded between the bottom of the guide plate 3 and the inner wall of the storage box 1, forming a triangular support structure to enhance stability. The bottom of the bearing plate 15 is welded or bolted to the ground via support legs 16 to form the equipment base. The top two sides are symmetrically equipped with second hydraulic cylinders 14, which are bolted to the bearing plate 15. Their telescopic ends are bolted to the sealing plate 19 via connecting blocks 18, enabling the sealing plate 19 to slide horizontally. The surface has a mating interface 17, which, when aligned with the mating interface 17 of the sealing plate 19, forms a channel for the steel balls to fall. Functionally, it supports the sealing plate 19 and the discharge pipe 20, providing a stable mechanical foundation. The second hydraulic cylinder 14 controls the movement of the sealing plate 19, enabling the discharge pipe 20 to move. Precise control of the opening and closing of 0 and the discharge of steel balls; Push plate 6: The surface is grooved to facilitate contact with the extension end of the first hydraulic cylinder 10, so that the steel balls are pushed above the screen hole 4; It fits against the contact plate 7 and is held in its initial position (near the fixed plate 9) by the elastic force of the spring 8; Functional role: Guide plate 3: Guides the steel balls to roll and achieve single ball screening through the screen hole 4, and the chute 5 ensures that the push plate 6 moves smoothly; Push plate 6: Under the push of the first hydraulic cylinder 10, pushes the steel balls accumulated at the bottom of the guide plate 3 upward, so that the steel balls re-contact the screen hole 4 and realize the cyclic feeding; Spring 8: One end is fixed to the surface of the fixed plate 9 by bolts or welding, and the other end is welded to the contact plate 7 to form an elastic buffer structure; The sealing plate 19 is slidably connected to the bearing plate 15 through the bottom slide rail or dovetail groove to ensure smooth movement; The surface interface 17 and the bearing plate 15 interface 17 have the same size (diameter > steel ball diameter) and the center is aligned.Functionally, when the interface 17 of the sealing plate 19 aligns with the interface 17 of the bearing plate 15, the steel balls in the temporary storage chamber 21 fall to the ball mill by gravity; when misaligned, the bottom of the discharge pipe 20 is blocked, and the discharge stops; Mechanical coordination and technical effect: Steel ball replenishment process: Storage and screening: Steel balls are put into the storage chamber 2 by the hoisting equipment, roll along the guide plate 3 to the bottom, some steel balls fall into the feeding pipe 12 through the screen holes 4, and the remaining steel balls accumulate in front of the push plate 6; Push plate 6 cyclic feeding: The first hydraulic cylinder 10 extends periodically, pushing the push plate 6 upward to push the accumulated steel balls. At screen hole 4, the steel balls are screened and fall again; when the hydraulic cylinder retracts, the push plate 6 is reset under the action of spring 8, and the cycle repeats; controllable discharge: the second hydraulic cylinder 14 drives the sealing plate 19 to move, and when the interface 17 is opened, the steel balls in the temporary storage chamber 21 are discharged one by one according to gravity; when closed, the discharge is paused, and the replenishment amount is precisely adjusted by controlling the opening time; key coordination point, screen hole 4 size and push plate 6 movement: screen hole 4 ensures that single balls fall, and push plate 6 avoids steel balls accumulating and clogging screen hole 4. The two work together to achieve "screening one by one and continuous feeding"; spring 8 buffer and hydraulic cylinder drive: spring 8 Reduced steel ball impact, protecting the mechanical structure; hydraulic cylinders provide power for automated control, replacing manual operation; temporary storage chamber 21 and interface 17 are linked: temporary storage chamber 21 stores a certain amount of steel balls, reducing frequent operation of the sealing plate 19 and improving replenishment efficiency; precise alignment of interface 17 ensures smooth discharge of steel balls; good replenishment effect: steel balls are replenished one by one in an orderly manner through sieve holes 4 and temporary storage chamber 21, avoiding the randomness of traditional manual ball addition and ensuring stable steel ball concentration in the ball mill; high controllability: the first hydraulic cylinder 10 controls the feeding frequency, and the second hydraulic cylinder 14 controls the discharge time, which can be adjusted according to the feed rate. The ore quantity is adjusted and replenished in real time to meet the process ball consumption ratio requirements; it is highly practical: the fully mechanized structure reduces manual intervention and labor intensity, while the spring 8 buffer and pipe support 13 improve the equipment durability, making it suitable for harsh working conditions such as mines; the running time and extension / retraction control of the hydraulic cylinders (first hydraulic cylinder 10 and second hydraulic cylinder 14) are usually achieved through the following technical solutions, specifically involving key technologies such as hydraulic system design, control system integration, and sensor feedback: I. Hydraulic system hardware configuration: 1. Hydraulic power unit, hydraulic pump: provides stable oil pressure to drive the hydraulic cylinder. Gear pumps or vane pumps can be selected, and the flow rate is matched according to the hydraulic cylinder load and speed requirements; electromagnetic directional valve: controls the direction of the hydraulic cylinder oil circuit to realize the extension, retraction, or stop of the piston rod. For example, the position of the directional valve core is switched by the output electrical signal of the PLC to change the hydraulic oil flow direction; speed control valve / throttle valve: connected in series in the oil circuit, controls the running speed of the hydraulic cylinder by adjusting the oil flow, and indirectly controls the extension / retraction and action time;1. Relief valve: Sets the maximum system pressure to prevent overload and protect hydraulic components. 2. Hydraulic cylinder structure design and stroke control: Customize the piston rod stroke of the hydraulic cylinder according to the mechanical structure of the equipment (such as the moving distance of push plate 6 and the opening and closing range of sealing plate 19). For example, the stroke of the first hydraulic cylinder 10 pushing push plate 6 must ensure that the steel ball can accurately pass through the sieve hole 4. The stroke can be limited by the internal limit block of the cylinder body or the external mechanical stop block; Load matching: Calculate the motion resistance of push plate 6 / sealing plate 19 (such as the friction of steel ball and the elastic force of spring 8), select the appropriate cylinder diameter and oil pressure, and ensure that the output force of the hydraulic cylinder meets the requirements. II. Control system logic design, 1. Control core, PLC (Programmable Logic Controller): As the main control unit, it receives sensor signals, executes control algorithms, and outputs electrical signals to drive the hydraulic valves. Human-Machine Interface (HMI): Supports operators to set parameters (such as ball-adding interval time, reciprocating frequency of push plate 6), and monitor the status of hydraulic cylinders in real time (such as position, pressure); 2. Running time control, timed trigger: Time parameters (such as "add steel balls every 30 minutes") are set through the PLC's built-in timer or HMI. After the set time is reached, the PLC outputs a signal to start the second hydraulic cylinder 14 and controls the opening duration of the sealing plate 19 (such as opening for 5 seconds and then closing); Process linkage: Linked with the ball mill's operating status (such as by detecting the ball mill current or feed rate sensor). When the ball mill load increases, the ball-adding interval time is automatically shortened, and the hydraulic cylinder's operating frequency is extended; 3. Extension and retraction control, displacement sensor: A linear displacement sensor (such as a magnetostrictive sensor or LVDT) is installed on the hydraulic cylinder piston rod to detect the piston rod position in real time and feed it back to the PLC. For example, when the first hydraulic cylinder 10 pushes the push plate 6, the sensor detects that the piston rod extends to the set stroke (e.g., 50mm), and the PLC sends a signal to stop the cylinder's movement; Proportional valve control: A proportional solenoid directional valve or servo valve is used, and the extension and retraction of the hydraulic cylinder is precisely adjusted by the PLC outputting an analog signal (e.g., 4-20mA current). For example, the pushing distance of the push plate 6 is dynamically adjusted according to the amount of steel ball accumulation to avoid excessive compression of the steel ball; III. Sensors and feedback mechanisms, 1. Position detection, proximity switch: Magnetic proximity switches are installed at both ends of the hydraulic cylinder body. When the piston rod reaches the designated position, the switch is triggered, and a "position signal" is fed back to the PLC. For example, when the push plate 6 resets, the proximity switch detects that the piston rod retracts to the initial position, and the PLC controls the first hydraulic cylinder 10 to stop its movement; Encoder: For high-precision control scenarios, the number of rotations of the hydraulic cylinder drive motor can be recorded by the encoder and converted into the piston rod displacement to achieve closed-loop control; 2. Pressure monitoring, pressure sensor: A pressure sensor is installed in the hydraulic system pipeline to monitor the oil pressure in real time. When the system pressure is abnormal (such as exceeding the relief valve setting value), the PLC triggers an alarm and stops the machine to prevent equipment damage.Load feedback: The pressure signal indirectly determines the steel ball accumulation (e.g., when the resistance of push plate 6 increases, the oil pressure rises). The PLC automatically adjusts the extension frequency or stroke of push plate 6 to avoid material jamming. IV. Typical control process example (taking the second hydraulic cylinder 14 controlling the sealing plate 19 as an example): Parameter setting: Input "single ball addition time = 3 seconds" and "ball addition interval = 60 minutes" through the HMI; Timed trigger: When the PLC timer counts down to 0, it outputs a signal to the solenoid directional valve, the piston rod of the second hydraulic cylinder 14 extends, pushing the sealing plate 19 to move and opening the bottom opening of the discharge pipe 20; Time control: The PLC starts the internal timer. After 3 seconds, the directional valve switches the oil circuit, the hydraulic cylinder piston rod retracts, and the sealing plate 19 resets to close the opening; Position verification: After the proximity switch detects that the sealing plate 19 is completely closed, it sends a signal to the PLC to confirm that one ball addition action is completed; Abnormal handling: If no "closed in place" signal is received after the timer ends, the PLC... An alarm is triggered, indicating potential mechanical jamming or sensor malfunction. The above technical solutions enable precise control of the hydraulic cylinder's operating time and extension / retraction, ensuring automation and intelligence in the steel ball replenishment process, improving grinding efficiency and reducing labor costs. In practical applications, appropriate hydraulic components and control strategies must be selected based on equipment load and environmental conditions (such as dust and vibration).

[0028] In one embodiment, a pipe support 13 is installed on the outer periphery of the feeding pipe 12. The pipe support 13 is welded to the inner wall of the storage box 1. The feeding pipe 12 has one end welded to the bottom of the screen hole 4 and the other end passing through the side wall of the storage box 1. It is fixed to the inner wall of the storage box 1 by welding through the pipe support 13 to ensure that the pipe is stable and does not shake. The discharge pipe 20 is connected to or welded to the flange of the feeding pipe 12, forming a temporary storage cavity 21 inside, which can temporarily store multiple steel balls. The bottom is in contact with the upper surface of the sealing plate 19. Functionally, the feeding pipe 12 guides the steel balls falling from the screen hole 4 to the discharge pipe 20. The inclination angle of the pipe needs to be greater than the rolling friction angle of the steel balls (usually ≥30°). The temporary storage cavity 21 stores the steel balls to be discharged, reducing the number of times the sealing plate 19 is opened frequently and improving the replenishment efficiency.

[0029] In one embodiment, a first hydraulic cylinder 10 is installed at the top of one side of the inner surface of the storage box 1. The first hydraulic cylinder 10 is fixed to the top of the inner wall of the storage box 1 by bolts. Its telescopic end passes through the through hole 11 of the fixing plate 9 and the contact plate 7 and contacts the push plate 6. Functionally, the storage box 1, as the main body of the equipment, provides space for storing and conveying steel balls. The inclined guide plate 3 guides the steel balls to move towards the screen hole 4, and the push plate 6 cooperates to realize the orderly pushing of the steel balls.

[0030] In one embodiment, through holes 11 are provided on the surface of the contact plate 7 and the surface of the fixing plate 9, and the through holes 11 are aligned with the first hydraulic cylinder 10. The contact plate 7 is in contact with the push plate 6, and the through holes 11 are aligned with the first hydraulic cylinder 10, allowing the extension end of the hydraulic cylinder to pass through. Functionally, when the steel balls accumulate and push the push plate 6 to squeeze the contact plate 7, the spring 8 is compressed to absorb the impact force and avoid rigid collision damage to the components. The first hydraulic cylinder 10 is fixed to the inner wall of the storage box 1, and its extension end contacts the push plate 6 through the through hole 11. No rigid connection is required, and the push plate 6 is driven only by the thrust.

[0031] In one embodiment, second hydraulic cylinders 14 are symmetrically installed on both sides of the top of the support plate 15. One end of the second hydraulic cylinder 14 is connected to the sealing plate 19 through the connecting block 18. The second hydraulic cylinder 14 is connected to the sealing plate 19 through the connecting block 18 to ensure that the sealing plate 19 is subjected to uniform force when sliding horizontally. Functionally, the first hydraulic cylinder 10 periodically pushes the push plate 6 to push the steel balls at the bottom of the guide plate 3 upward to replenish the position of the screen hole 4. The second hydraulic cylinder 14 controls the opening and closing time of the sealing plate 19 according to the process requirements to precisely adjust the steel ball discharge volume (e.g., each opening lasts 10 seconds and discharges 10 steel balls).

[0032] In one embodiment, slid grooves 5 are symmetrically provided on both sides of the top of the guide plate 3. The guide plate 3 has slid grooves 5 on both sides, which slide in cooperation with the protruding structures on both sides of the push plate 6, restricting the push plate 6 to move horizontally only along the surface of the guide plate 3. Screen holes 4 are uniformly provided in the middle of the surface. The diameter of the screen holes 4 must be larger than the diameter of a single steel ball and smaller than the diameter of two steel balls side by side (e.g., if the diameter of the steel ball is D, then the diameter of the screen holes 4 is set to 1.1D), ensuring that only one steel ball passes through at a time.

[0033] In one embodiment, the push plate 6 has a slot on its surface.

[0034] In one embodiment, the size of interface 17 is larger than the size of the steel ball.

[0035] Working Principle: In actual use, the storage bin 1 can be fixed to one side of the ball mill using a bracket or a concrete platform, ensuring that its discharge pipe 20 aligns with the ball mill's feeding port for easy ball feeding. Once the storage bin 1 is installed, the steel balls to be used can be hoisted and placed into the storage chamber 2 using an overhead crane or similar equipment. The added steel balls will slide naturally along the guide plate 3 at the bottom of the storage chamber 2. As the steel balls fall, they will interact with the screen holes on the surface of the guide plate 3. 4. Contact is established. Since the size of the screen hole 4 is set within the range of 1-1.2 standard steel balls (the specific size can be adjusted, but it must be larger than one size without causing two steel balls to get stuck), the steel balls can fall naturally when they contact the screen hole 4. This avoids two steel balls contacting the screen hole 4 simultaneously and getting stuck, ensuring that the steel balls fall one by one. When all the steel balls have moved to the bottom position of the guide plate 3, the steel balls will push the push plate 6, causing it to move to the contact position. At position 7, the impact on the contact plate 7 triggers the compression deformation of the spring 8, thereby reducing the impact on the push plate 6 and the rear fixed plate 9 to a certain extent, ensuring the long-term use of the plate. Then, the ejection of the first hydraulic cylinder 10 can drive its telescopic end to pass through the through hole 11 and contact the push plate 6, thus pushing the push plate 6. At this time, the steel ball can be pushed upward, so that the steel ball that has not fallen can re-contact the screen hole 4 and fall into the feeding pipe 12, and enter the discharge pipe 20 along the feeding pipe 12, which facilitates the subsequent addition of balls. In operation, when ball addition is required, personnel can control the operation and return of the second hydraulic cylinder 14 according to the actual usage of the ball mill and changes in operational needs, thereby adjusting the ball discharge time and changing the number of added steel balls for better use. Since the steel balls are discharged one by one, the amount of steel balls added can be better controlled, avoiding waste and insufficient addition that may affect the ball milling quality and ensure the overall performance. The device has the advantages of good replenishment effect, high controllability of replenishment, and strong practicality.

[0036] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0037] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. Automatic grinding medium replenishing device, comprising a storage tank (1) and a bearing plate (15), characterized in that, The storage box (1) has a storage cavity (2) at the top of its interior. A guide plate (3) is inclinedly welded inside the storage cavity (2). A fixing plate (9) is inclinedly welded between the bottom side of the guide plate (3) and the inner wall of the storage box (1). Several sets of springs (8) are evenly installed on one side of the fixing plate (9). The other end of the springs (8) is connected to a contact plate (7). A push plate (6) is provided on one side of the contact plate (7), and the push plate (6) is slidably connected to the guide plate (3). Several sets of sieve holes (4) are evenly opened on one side of the push plate (6) at the middle of the surface of the guide plate (3). (4) A feeding pipe (12) is installed at the bottom. One end of the feeding pipe (12) passes through one side of the storage box (1) and is connected to the discharge pipe (20). The discharge pipe (20) has a temporary storage cavity (21) inside. A sealing plate (19) is attached to the bottom of the discharge pipe (20). A bearing plate (15) is provided at the bottom of the sealing plate (19). The bearing plate (15) is slidably connected to the sealing plate (19). Several sets of support legs (16) are symmetrically welded on both sides of the bottom of the bearing plate (15). Both the surface of the sealing plate (19) and the surface of the bearing plate (15) have a mating interface (17).

2. The automatic grinding media replenishment device according to claim 1, characterized in that, The feed pipe (12) is equipped with a pipe support (13) on its outer periphery, and the pipe support (13) is welded to the inner wall of the storage box (1).

3. The automatic grinding media replenishment device according to claim 1, characterized in that, The storage box (1) has a first hydraulic cylinder (10) installed at the top of one side surface inside.

4. The automatic grinding media replenishment device according to claim 1, characterized in that, Through holes (11) are provided on the surface of the contact plate (7) and the surface of the fixing plate (9), and the through holes (11) are aligned with the first hydraulic cylinder (10).

5. The automatic grinding media replenishment device according to claim 1, characterized in that, The second hydraulic cylinder (14) is symmetrically installed on both sides of the top of the bearing plate (15). One end of the second hydraulic cylinder (14) is connected to the sealing plate (19) through the connecting block (18).

6. The automatic grinding media replenishment device according to claim 1, characterized in that, The guide plate (3) has symmetrical grooves (5) on both sides of its top.

7. The automatic grinding media replenishment device according to claim 1, characterized in that, The push plate (6) has a groove on its surface.

8. The automatic grinding media replenishment device according to claim 1, characterized in that, The size of the interface (17) is larger than the size of the steel ball.

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