Ball mill for powder metallurgy

Abstract

The utility model discloses a ball mill for powder metallurgy, and relates to the technical field of powder metallurgy. The ball mill for powder metallurgy comprises a ball milling assembly and a screening assembly, the ball milling assembly comprises a first grinding cylinder and a second grinding cylinder, the screening assembly comprises a first storage bin and a second storage bin, one end of the first grinding cylinder is in sealed connection with the first storage bin through a hose, and the other end of the first grinding cylinder is in sealed connection with the second storage bin through a hose. And one end of the second grinding cylinder is hermetically connected with the second storage bin through a hose. In order to overcome the defect of poor grinding effect caused by the fact that a ball mill cannot perform graded grinding on metal raw materials, particles and blocks in the metal raw materials are separated through a screen and are respectively guided into a first grinding cylinder and a second grinding cylinder, graded grinding is realized, excessive grinding of fine particles and insufficient grinding of coarse particles are avoided, and the grinding efficiency is improved. And the overall grinding effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of powder metallurgy, and particularly relates to a ball mill for powder metallurgy. Background Technique

[0002] When powder metallurgy is carried out, a ball mill is needed. The ball mill impacts and frictions the metal raw materials through its rotating cylinder body and the grinding medium inside the cylinder body, so that they are crushed into required fine particles. And these metal raw materials usually exist in the form of blocks or particles. Since the blocky and particulate metal raw materials have different hardnesses and sizes, if they are not classified and ground, it will cause the fine particles to be over-ground within the same grinding time, while the coarse particles may not reach the required fineness, resulting in a less-than-satisfactory grinding effect.

[0003] Therefore, in order to solve the defect that the ball mill cannot classify and grind metal raw materials, resulting in a poor grinding effect, it is very necessary to propose a ball mill for powder metallurgy. Content of the Utility Model

[0004] The purpose of the utility model is to provide a ball mill for powder metallurgy, which separates the particulate and blocky forms in the metal raw materials through a sieve mesh and respectively introduces them into the first grinding cylinder and the second grinding cylinder to realize classified grinding, avoid over-grinding of fine particles and insufficient grinding of coarse particles, and improve the overall grinding effect, so as to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A ball mill for powder metallurgy includes a ball milling component and a screening component. The ball milling component includes a first grinding cylinder and a second grinding cylinder;

[0007] The screening component includes a first storage bin and a second storage bin;

[0008] One end of the first grinding cylinder is hermetically connected to the first storage bin through a hose, and one end of the second grinding cylinder is hermetically connected to the second storage bin through a hose;

[0009] The other ends of the first grinding cylinder and the second grinding cylinder are both hermetically connected to a feed hopper through a hose, and a discharge port is provided on their cylinder bodies, and a sealing plate is detachably connected outside the discharge port.

[0010] Preferably, the ball milling component further includes a servo motor, the output end of the servo motor is fixedly connected with a gear, and tooth rings meshing with the gear are installed outside the first grinding cylinder and the second grinding cylinder.

[0011] Preferably, aggregate troughs are provided at the lower ends of the first grinding cylinder and the second grinding cylinder of the ball milling component.

[0012] Preferably, the first storage bin and the second storage bin are both connected to a bracket via a spring.

[0013] Preferably, a feed port is provided at the top of the first storage bin, and a cylinder and a vibration motor are fixedly mounted on the outer wall thereof; a screen is installed in the first storage bin, the screen is inclined toward the direction of the second storage bin, and a dispensing port is provided at the end thereof.

[0014] Preferably, the output end of the cylinder is fixedly connected with a material baffle plate, and the material baffle plate is slidably connected to the material distribution port.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] The ball mill for powder metallurgy separates the granular and blocky metal raw materials through the screening component, and introduces them into the first grinding cylinder and the second grinding cylinder respectively, and then adds the grinding medium suitable for the particle size into the grinding cylinder to realize graded grinding, thereby reducing the over-grinding of fine particles and the insufficient grinding of coarse particles, ensuring that the coarse particles and fine particles are processed at the appropriate grinding stage, and improving the overall grinding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0018] Figure 2 This is a structural diagram of the ball mill assembly of the utility model;

[0019] Figure 3 This is a diagram of the screening component structure of the utility model.

[0020] In the figure: 1. ball mill assembly; 101. first grinding cylinder; 102. second grinding cylinder; 103. feed hopper; 104. hose; 105. discharge port; 106. gear ring; 11. servo motor; 12. gear; 13. collection trough; 2. screening assembly; 201. first storage bin; 202. second storage bin; 203. feed port; 204. cylinder; 205. vibration motor; 206. screen; 207. material distribution port; 208. material baffle plate; 21. spring; 22. bracket. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] To solve the technical problem of how to screen metal raw materials in ball mill, please refer to Figures 1 - 3 , this embodiment provides the following technical solutions:

[0023] A ball mill for powder metallurgy comprises a ball mill assembly 1 and a screening assembly 2. The screening assembly 2 comprises a first material storage bin 201 and a second material storage bin 202. The first material storage bin 201 and the second material storage bin 202 are both connected to a bracket 22 via a spring 21.

[0024] A feed port 203 is provided at the top of the first material storage bin 201, and a cylinder 204 and a vibration motor 205 are fixedly installed on the outer wall thereof. A screen 206 is installed in the first material storage bin 201, the screen 206 is inclined toward the direction of the second material storage bin 202, and a material distribution port 207 is provided at the end thereof. A material baffle plate 208 is fixedly connected to the output end of the cylinder 204, and the material baffle plate 208 is slidably connected to the material distribution port 207.

[0025] Specifically, the metal raw material is introduced into the first storage bin 201 through the feed port 203, and the vibration motor 205 is started to generate vibration, so that the metal raw material is screened on the screen 206, and the fine particles pass through the screen 206 and fall into the first storage bin 201, while the coarse particles that do not pass through the screen 206 are gathered at the distribution port 207 under the inclination of the screen 206 and the vibration of the vibration motor 205. The cylinder 204 is started to drive the baffle plate 208 to move upward, so that the distribution port 207 is opened, and the coarse particles can fall into the second storage bin 202, thereby realizing the screening of granular and block metal raw materials.

[0026] In order to solve the technical problem of how to grade and grind metal raw materials with ball mill, please refer to Figures 1 - 2 , this embodiment provides the following technical solutions:

[0027] The ball mill assembly 1 includes a first grinding cylinder 101 and a second grinding cylinder 102. One end of the first grinding cylinder 101 is sealedly connected to the first storage bin 201 through a hose 104, and one end of the second grinding cylinder 102 is sealedly connected to the second storage bin 202 through a hose 104. The other ends of the first grinding cylinder 101 and the second grinding cylinder 102 are sealedly connected to a feed hopper 103 through a hose 104, and a discharge port 105 is opened on the cylinder body, and a sealing plate is detachably connected to the outside of the discharge port 105.

[0028] The ball mill assembly 1 also includes a servo motor 11, the output end of the servo motor 11 is fixedly connected to a gear 12, the first grinding cylinder 101 and the second grinding cylinder 102 are both equipped with a gear ring 106 meshing with the gear 12, and the ball mill assembly 1 is provided with a collection trough 13 at the lower end of the first grinding cylinder 101 and the second grinding cylinder 102.

[0029] Specifically, after the screening, the fine particles of the metal raw materials enter the first grinding cylinder 101 from the first storage bin 201 through the hose 104, and the coarse particles enter the second grinding cylinder 102 from the second storage bin 202 through the hose 104, and then the grinding medium adapted to the particle size is introduced from the feed hopper 103 into the corresponding grinding cylinder, the servo motor 11 is started, the drive gear 12 rotates, and drives the gear ring 106 meshing with it to rotate, thereby driving the grinding cylinder to rotate, and the grinding medium in the grinding cylinder impacts and rubs the metal raw materials under the action of rotation, so that it is crushed into the required fine particles. After the grinding is completed, when the discharge port 105 rotates to the lower end, the servo motor 11 is turned off, and the sealing plate outside the discharge port 105 is removed. At this time, the metal powder is discharged through the discharge port 105 and falls into the collecting trough 13 below the grinding cylinder, which is convenient for subsequent processing or packaging.

[0030] The grinding balls will be discharged along with the powder and fall into the aggregate trough 13. A filter screen (not shown) for screening the powder and the grinding balls may be installed in the aggregate trough 13, so that the grinding balls stay on the filter screen, while the powder passes through the filter screen and falls to the bottom of the aggregate trough 13, thereby realizing automatic screening and collection of the grinding balls and the powder.

[0031] Working principle: When the ball mill for powder metallurgy is in use, the metal raw material is introduced into the first storage bin 201 through the feed port 203, and the vibration motor 205 is started to screen the metal raw material on the screen 206. Fine particles pass through the screen 206 and fall into the first storage bin 201, while coarse particles that do not pass through the screen 206 gather at the feed port 207. At this time, the cylinder 204 is started to drive the baffle plate 208 to move upward, so that the coarse particles can fall into the second storage bin 202, thereby realizing the screening of granular and block metal raw materials. After the screening, the fine particles of the metal raw materials are removed from the first storage bin. 201 enters the first grinding cylinder 101 through the hose 104, and the coarse particles enter the second grinding cylinder 102 from the second storage bin 202 through the hose 104, and then the grinding medium adapted to the particle size is introduced from the feed hopper 103 into the corresponding grinding cylinder, and the servo motor 11 is started to drive the grinding cylinder to rotate. The grinding medium in the grinding cylinder impacts and rubs the metal raw material under the action of rotation, so that it is crushed into the required fine particles. After grinding, the metal powder is discharged through the discharge port 105 and falls into the collecting trough 13 below the grinding cylinder, which is convenient for subsequent processing or packaging.

[0032] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0033] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A ball mill for powder metallurgy, comprising a ball milling assembly (1) and a screening assembly (2), characterized in that: The ball milling assembly (1) includes a first grinding cylinder (101) and a second grinding cylinder (102); The screening assembly (2) includes a first storage bin (201) and a second storage bin (202); One end of the first grinding cylinder (101) is hermetically connected to the first storage bin (201) through a hose (104), and one end of the second grinding cylinder (102) is hermetically connected to the second storage bin (202) through a hose (104); The other ends of the first grinding cylinder (101) and the second grinding cylinder (102) are both hermetically connected to a feed hopper (103) through a hose (104), and a discharge port (105) is provided on the cylinder body thereof, and a sealing plate is detachably connected outside the discharge port (105).

2. The ball mill for powder metallurgy according to claim 1, characterized in that: The ball milling assembly (1) further includes a servo motor (11), the output end of the servo motor (11) is fixedly connected with a gear (12), and a toothed ring (106) meshing with the gear (12) is installed outside both the first grinding cylinder (101) and the second grinding cylinder (102).

3. The ball mill for powder metallurgy according to claim 1, characterized in that: The ball milling assembly (1) is provided with aggregate troughs (13) at the lower ends of the first grinding cylinder (101) and the second grinding cylinder (102).

4. A ball mill for powder metallurgy according to claim 1, characterized in that: Both the first storage bin (201) and the second storage bin (202) are connected to a bracket (22) through a spring (21).

5. A ball mill for powder metallurgy according to claim 1, characterized in that: The top of the first storage bin (201) is provided with a feed inlet (203), and a cylinder (204) and a vibration motor (205) are fixedly installed on its outer wall. A sieve mesh (206) is installed inside the first storage bin (201), the sieve mesh (206) is inclined towards the second storage bin (202), and a material distribution port (207) is provided at its end.

6. The ball mill for powder metallurgy according to claim 5, wherein: The output end of the cylinder (204) is fixedly connected with a baffle plate (208), and the baffle plate (208) is slidably connected with the material distribution port (207).

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