Overload protection type structure precipitation carbide wear-resistant steel ball storage chamber

Abstract

The overload protection type structure precipitation carbide abrasion-resistant steel ball storage chamber comprises a ball storage chamber body, a discharging opening is formed in the left side end of the ball storage chamber body, the ball storage chamber body is located in an inner cavity of a shell, and the bottom of the ball storage chamber body is connected with the shell through a vibration spring. A vibration motor is installed at the bottom of the ball storage chamber, and the left end and the upper end of the shell are open. The device further comprises an overload protection unit. According to the automatic ball feeding machine, the overload protection unit is arranged, overload discharging can be automatically conducted, unloaded steel balls are automatically added into the ball storage chamber through the height change of the ball storage chamber in the working process, overload of the ball storage chamber can be effectively avoided, and meanwhile unnecessary troubles caused by the fact that additionally stored steel balls are manually added into the ball storage chamber again are avoided.

Description

Technical Field

[0001] This utility model relates to the field of automatic ball-adding machine technology, and in particular to an overload-protected wear-resistant steel ball storage chamber for precipitating carbides. Background Technology

[0002] A ball mill is a type of grinding mill. It has a hollow cylinder containing heavy steel balls (grinding media) for grinding the material. The working principle of a ball mill mainly relies on the impact and friction of the steel balls inside the cylinder. When the cylinder rotates, the grinding media (wear-resistant steel balls with carbide-precipitated structures) added into the cylinder by an automatic ball feeder impact and grind the material inside the cylinder due to inertia and centrifugal force. The material is fed evenly into the mill through the hollow feed shaft screw of the feeding device, and after grinding, it is discharged through the discharge grate.

[0003] The existing automatic ball feeder for ball mills mainly includes a ball storage chamber with a vibrating motor, a pusher plate feeder, and an inclined conveying trough for guiding the steel balls. The vibrating motor causes the steel balls in the ball storage chamber to fall onto the pusher plate feeder, which then pushes the steel balls into the conveying trough. Because the conveying trough is inclined, the steel balls in the conveying trough move along the path of the conveying trough under their own gravity and eventually enter the cylinder of the ball mill.

[0004] Between each grinding operation of the ball mill, a sufficient amount of steel balls needs to be added to the automatic ball feeder to ensure the orderly progress of subsequent grinding. Generally, a grab bucket is used to repeatedly grab the steel balls from the ball pool and send them to the ball storage chamber. In actual addition, the steel balls in the ball storage chamber are often overloaded because the amount of steel balls grabbed in the last grab cannot be accurately controlled. Overloaded steel balls will result in insufficient vibration in the ball storage chamber, and the steel balls inside are prone to blockage and jamming, affecting the feeding of steel balls. It can also easily cause the vibration motor to overload. Prolonged overload may cause the vibration motor to overheat or even burn out, thus affecting the normal operation of the entire automatic ball feeder. Therefore, this application provides an overload-protected wear-resistant steel ball storage chamber with precipitated carbides to meet the requirements. Utility Model Content

[0005] The purpose of this application is to provide an overload-protected, microstructure-precipitated carbide wear-resistant steel ball storage chamber to solve the technical problem of overload easily occurring during the feeding of existing automatic ball feeder storage chambers.

[0006] To achieve the above objectives, this application provides the following technical solution: an overload-protected wear-resistant steel ball storage chamber for precipitating carbides, comprising a storage chamber, a discharge opening provided on the left side end of the storage chamber, the storage chamber being located within the inner cavity of the outer shell, the bottom of the storage chamber being connected to the outer shell via a vibration spring, a vibration motor being installed at the bottom of the storage chamber, and the left and upper ends of the outer shell being open;

[0007] It also includes an overload protection unit, which includes a discharge notch provided at the upper end of the right side wall of the ball storage chamber, a receiving groove fixedly installed on the inner wall of the outer shell and located below the discharge notch, a discharge opening provided on the right side wall of the ball storage chamber, and a feed plate rotatably provided in the inner cavity of the discharge opening via a first rotating shaft.

[0008] The inner cavity of the receiving trough is inclined with a guide plate, and the bottom plate of the receiving trough is inclined and the guide plate is arranged in a figure-eight shape. A baffle is slidably installed through the bottom plate, and the lower end of the baffle is connected to the receiving trough by a connecting spring. The lower end of the baffle is connected to a winding wheel installed on the second rotating shaft by a pull rope. The second rotating shaft is rotatably installed at the bottom of the receiving trough. A one-way drive gear is installed on the end of the second rotating shaft. A toothed plate is provided on the upper left side of the one-way drive gear. The toothed plate is fixedly installed on the outer wall of the ball storage chamber.

[0009] The receiving trough has a discharge port on its side wall near the discharge opening.

[0010] In a preferred embodiment of this invention, an elastic buffer layer is fixedly bonded to the collision surface between the feed plate and the steel ball.

[0011] In a preferred embodiment of this invention, both the toothed plate and the drive teeth of the one-way drive gear are wrapped with an elastic buffer layer.

[0012] In a preferred embodiment of this invention, the baffle is positioned near the upper end of the base plate.

[0013] In a preferred embodiment of this invention, a movable plate is fixedly installed at the lower left end of the ball storage chamber.

[0014] In summary, the technical effects and advantages of this utility model are as follows:

[0015] This utility model has a reasonable structure. The automatic ball feeder is equipped with an overload protection unit, which can automatically unload overloaded materials. By changing the height of the ball storage chamber during operation, the unloaded steel balls are automatically added to the ball storage chamber, which can effectively prevent the ball storage chamber from being overloaded. It also avoids the unnecessary trouble caused by manually adding separately stored steel balls back to the ball storage chamber. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 for Figure 1 Schematic diagram of the partial split structure in the middle;

[0019] Figure 3 for Figure 2 A schematic diagram of the structure of the central storage sphere from below;

[0020] Figure 4 for Figure 2 A schematic diagram of a partial cross-sectional structure of the central storage sphere chamber.

[0021] In the diagram: 1. Outer shell; 2. Ball storage chamber; 3. Discharge opening; 4. Unloading notch; 5. Feed plate; 6. First rotating shaft; 7. Toothed plate; 8. Vibration spring; 9. Vibration motor; 10. Movable plate; 11. Receiving trough; 12. Second rotating shaft; 13. One-way drive gear; 14. Pull rope; 15. Guide inclined plate; 16. Baffle; 17. Connecting spring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example: Reference Figure 1-4 The overload protection type wear-resistant steel ball storage chamber with precipitated carbides shown includes a ball storage chamber 2, a feeding opening 3 is provided on the left side end of the ball storage chamber 2, the ball storage chamber 2 is located in the inner cavity of the outer shell 1, the bottom of the ball storage chamber 2 is connected to the outer shell 1 through a vibration spring 8, a vibration motor 9 is installed at the bottom of the ball storage chamber 2, and the left and upper ends of the outer shell 1 are both open.

[0024] It also includes an overload protection unit, which includes a discharge notch 4 provided on the upper end of the right side wall of the ball storage chamber 2, a receiving groove 11 fixedly installed on the inner wall of the outer shell 1 and located below the discharge notch 4, a discharge opening provided on the right side wall of the ball storage chamber 2, and a feed plate 5 rotatably provided in the inner cavity of the discharge opening via the first rotating shaft 6.

[0025] The inner cavity of the receiving trough 11 is inclined with a guide plate 15, and the bottom plate of the receiving trough 11 is inclined and the guide plate 15 is arranged in a figure-eight shape. A baffle 16 is slidably installed through the bottom plate, and the lower end of the baffle 16 is connected to the receiving trough 11 through a connecting spring 17. The lower end of the baffle 16 is connected to a winding wheel installed on the second rotating shaft 12 through a pull rope 14. The second rotating shaft 12 is rotatably installed at the bottom of the receiving trough 11. A one-way drive gear 13 is installed on the end of the second rotating shaft 12. A toothed plate 7 is provided on the upper left side of the one-way drive gear 13. The toothed plate 7 is fixedly installed on the outer wall of the ball storage chamber 2.

[0026] The receiving trough 11 has a discharge port on its side wall near the discharge opening.

[0027] When steel balls are added to the ball storage chamber 2 using a grab bucket, the chamber moves downwards and the vibration spring 8 is compressed. As the chamber moves downwards, its toothed plate 7 moves downwards to below the one-way drive gear 13 (during this process, the toothed plate 7 and the one-way drive gear 13 engage and disengage; during the downward engagement, due to the one-way drive structure of the one-way drive gear 13, it cannot drive the second rotating shaft 12 to rotate separately). As more steel balls are added, excess steel balls (i.e., overloaded steel balls) are automatically discharged from the discharge notch 4 into the receiving trough 11. The steel balls in trough 11 are blocked by baffle 16 (at this time, the operator stops adding more balls). During operation, as the number of steel balls in storage chamber 2 decreases, storage chamber 2 slowly rises. When only the bottom layer (or a small number) of steel balls remain in storage chamber 2, its toothed plate 7 engages with the one-way drive gear 13, driving the second rotating shaft 12 to rotate. The rotation of the second rotating shaft 12 drives the pull rope 14 to wind up and causes the baffle 16 to compress the connecting spring 17 and move downward. When the baffle 16 is released from blocking the steel balls in the feeding trough 11, the steel balls move downward along the inclined surface of the bottom plate and collide with the feed plate 5. Through the impact force and the steel balls... The component of gravity of the steel ball causes the feed plate 5 to deflect and enter the ball storage chamber 2 through the gap. As a large number of steel balls are added to the ball storage chamber 2 simultaneously, the chamber moves downward due to the increased weight. At this time, the toothed plate 7 moves downward, and under the elastic force of the connecting spring 17, the second rotating shaft 12 rotates in the opposite direction, causing the baffle 16 to move upward and block the steel balls. After the baffle 16 blocks the steel balls, the toothed plate 7 finally moves to below the one-way drive gear 13. After the baffle 16 returns to its original position, as the number of steel balls inside the ball storage chamber 2 decreases, the ball storage chamber 2 will move upward again. The toothed plate 7 meshes with the one-way drive gear 13, and the steel balls in the receiving groove 11 are added to the ball storage chamber 2 again. This process is repeated until all the steel balls in the receiving groove 11 are added to the ball storage chamber 2. When there are no steel balls in the receiving groove 11, as the ball storage chamber 2 moves upward, the toothed plate 7 moves above the one-way drive gear 13. This overload protection unit can automatically unload the overload and automatically add the unloaded steel balls to the ball storage chamber 2 by changing the height of the ball storage chamber 2 during operation. This can effectively prevent the ball storage chamber 2 from being overloaded and also avoid the unnecessary trouble caused by manually adding separately stored steel balls back to the ball storage chamber 2.

[0028] It should be noted that: First, the bottom of the feed plate 5 is provided with an L-shaped blocking step, and the bottom of the inner cavity of the discharge opening is provided with a blocking strip that matches the L-shaped blocking step; Second, during the process of adding balls to the ball storage chamber 2, the discharge notch 4 is always located above the receiving trough 11, which is conducive to the overloaded steel balls entering the receiving trough 11 through the discharge notch 4.

[0029] In a preferred embodiment of this invention, an elastic buffer layer is fixedly bonded to the collision surface of the feed plate 5 and the steel ball.

[0030] The buffer layer is designed to buffer the collision between the steel ball and the feed plate 5, and to prevent the feed plate 5 from deforming due to the collision.

[0031] In a preferred embodiment of this invention, both the toothed plate 7 and the drive teeth of the one-way drive gear 13 are wrapped with an elastic buffer layer.

[0032] Since the ball storage chamber 2 uses the vibration motor 8 to vibrate and feed materials during operation, the toothed plate and gear are prone to tooth breakage due to vibration, which will also affect the vibration effect of the ball storage chamber 2. The elastic buffer layer is to reduce the collision buffer between the toothed plate 7 and the one-way drive gear 13, which can avoid tooth breakage and also help improve the vibration intensity of the ball storage chamber 2.

[0033] In a preferred embodiment of this invention, the baffle 16 is positioned near the upper end of the base plate.

[0034] The upper part of the base plate is designed to extend the rolling path of the steel ball on the base plate, thereby increasing the impact force between the steel ball and the feed plate 5, which helps the steel ball to knock out of the gap and fall into the ball storage chamber 2.

[0035] As a preferred embodiment of this example, Figure 1 As shown, a movable plate 10 is fixedly installed at the lower left end of the ball storage chamber 2.

[0036] Its movable plate 10 can move with the ball storage chamber 2. Its movable plate 10 seals and blocks the gap between the bottom of the ball storage chamber 2 and the bottom of the inner cavity of the outer shell 1, preventing the steel ball from entering this gap and affecting the downward movement of the ball storage chamber.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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. An overload-protected wear-resistant steel ball storage chamber with precipitated carbides, comprising a storage chamber (2), characterized in that: The ball storage chamber (2) has a feeding opening (3) on its left side. The ball storage chamber (2) is located inside the outer shell (1). The bottom of the ball storage chamber (2) is connected to the outer shell (1) by a vibration spring (8). A vibration motor (9) is installed at the bottom of the ball storage chamber (2). The left and upper ends of the outer shell (1) are both open. It also includes an overload protection unit, which includes a discharge notch (4) provided on the upper end of the right side wall of the ball storage chamber (2), a receiving groove (11) fixedly installed on the inner wall of the outer shell (1) and located below the discharge notch (4), a discharge opening provided on the right side wall of the ball storage chamber (2), and a feed plate (5) rotatably provided in the inner cavity of the discharge opening via the first rotating shaft (6). The inner cavity of the receiving trough (11) is inclined with a guide plate (15), and the bottom plate of the receiving trough (11) is inclined and the guide plate (15) is arranged in a figure-eight shape. A baffle (16) is slidably provided on the bottom plate, and the lower end of the baffle (16) is connected to the receiving trough (11) through a connecting spring (17). The lower end of the baffle (16) is connected to a winding wheel installed on the second rotating shaft (12) through a pull rope (14). The second rotating shaft (12) is rotatably provided at the bottom of the receiving trough (11). A one-way drive gear (13) is installed on the end of the second rotating shaft (12). A toothed plate (7) is provided on the upper left side of the one-way drive gear (13). The toothed plate (7) is fixedly provided on the outer wall of the ball storage chamber (2). The receiving trough (11) has a discharge port on its side wall near the discharge opening.

2. The overload-protected wear-resistant steel ball storage chamber with carbide precipitation according to claim 1, characterized in that: An elastic buffer layer is fixedly bonded to the collision surface of the feed plate (5) and the steel ball.

3. The overload-protected wear-resistant steel ball storage chamber with precipitated carbides as described in claim 1, characterized in that: The toothed plate (7) and the driving teeth of the one-way drive gear (13) are both wrapped with an elastic buffer layer.

4. The overload-protected wear-resistant steel ball storage chamber with precipitated carbides as described in claim 1, characterized in that: The baffle (16) is disposed near the upper end of the base plate.

5. The overload-protected wear-resistant steel ball storage chamber with carbide precipitation according to claim 1, characterized in that: A movable plate (10) is fixedly installed at the lower left end of the ball storage chamber (2).

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