Screening equipment for tantalum carbide

Abstract

The utility model relates to the technical field of tantalum carbide processing, in particular to tantalum carbide screening equipment which comprises a supporting frame, a screening mechanism is arranged in the supporting frame and comprises a screening cylinder, the screening cylinder rotates and drives a vibration block to rotate, the vibration block vibrates due to impact when making contact with a knocking block, and the knocking block vibrates due to impact when making contact with the vibration block. A knocking block is supported by an air spring, so that the knocking block can retract when being subjected to a vibration block to avoid influencing rotation of the screening cylinder, and when a second bevel gear rotates, a first bevel gear meshed with the knocking block drives a rotating rod to be connected with a spiral conveying blade to rotate, so that the screening efficiency is improved; materials can be conveniently pushed to move in the screening cylinder, the materials with proper sizes are discharged from the filtering holes of the screening cylinder, and the large materials are discharged from the opening in the back face of the screening cylinder, so that the materials can be continuously screened, and the screening efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tantalum carbide processing, in particular to screening equipment for tantalum carbide. Background Art

[0002] Tantalum carbide is a light brown metallic cubic crystalline powder belonging to the sodium chloride type cubic crystal system. Tantalum carbide is also used as a grain growth inhibitor for sintered cemented carbide, which has a significant effect on inhibiting grain growth, with a density of 14.3g / cm3. It is insoluble in water, difficult to dissolve in inorganic acids, soluble in a mixed acid of hydrofluoric acid and nitric acid and can be decomposed. It has strong antioxidant ability and is easily melted and decomposed by potassium pyrosulfate. It has high conductivity, with a resistance of 30Ω at room temperature, showing superconducting properties. It is used in powder metallurgy, cutting tools, fine ceramics, chemical vapor deposition, hard wear-resistant alloy tools, tools, molds and wear-resistant and corrosion-resistant structural component additives to improve the toughness of the alloy. In the reproduction process, a screening device is required to screen tantalum carbide to select silicon carbide particles of a certain size.

[0003] The prior art, such as publication number CN212524969U, provides a metal powder screening machine, which aims to provide a metal powder screening machine with simple structure, low cost and high screening efficiency. The utility model includes a frame, on which a motor, a coupling, a feed bin, a screening device, a coarse material discharge bin and a tail support seat connected in sequence are arranged, and a screw conveying shaft is also arranged on the frame, one end of the screw conveying shaft is connected to the coupling, and the other end of the screw conveying shaft passes through the feed bin, the screening device, the coarse material discharge bin in sequence and is connected to the tail support seat.

[0004] This scheme uses a spiral conveyor to feed the material, so that the metal powder is extruded, the fine particles are discharged by the screening device, and the coarse materials are sent out from the coarse material port to achieve the powder screening effect. However, in the actual screening process, due to the poor fluidity of the powder, the pores of the screening net are easily blocked during the extrusion of the metal powder, thereby affecting the subsequent screening effect. In view of this, we propose a screening device for tantalum carbide. Utility Model Content

[0005] The utility model aims to provide a screening device for tantalum carbide, which solves the problem that the pores of the screening net are easily blocked during the process of extruding metal powder.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A screening device for tantalum carbide, comprising a support frame, a screening mechanism is arranged inside the support frame, the screening mechanism comprises a screening cylinder, the screening cylinder is rotatably connected to the inner walls of both sides of the support frame, the back of the screening cylinder is connected to a third bevel gear through a connecting rod, one side of the third bevel gear is meshingly connected to a second bevel gear, the outer wall of the support frame is connected to a motor through a mounting plate, and the output end shaft of the motor is connected to the second bevel gear, and a vibration component is arranged inside the support frame;

[0008] The vibration assembly includes a gas spring, which is respectively connected to both sides of the inner wall of the support frame, and one end of the gas spring is connected to a knocking block. The outer wall of the screening cylinder is connected to a vibration block at a position corresponding to the knocking block. The second bevel gear is driven to rotate by starting the motor, and the screening cylinder is driven to rotate by a connecting rod connected to the meshing third bevel gear, so that the material in the screening cylinder is tumbled for screening. Since the screening cylinder is in a rotating state, the position of the filter hole of the screening cylinder is always changing. When it is at the top of the screening cylinder, the filter hole is in an inverted state, making it difficult for the material to adhere to the filter hole, resulting in blockage. The rotation of the screening cylinder will drive the vibration block to rotate. When the vibration block contacts the knocking block, it will vibrate due to the impact, so as to facilitate the shaking off of the material in the filter hole of the screening cylinder, so as to avoid the blockage of the filter hole affecting the screening efficiency. The knocking block is supported by the gas spring, so that it will retract when it is affected by the vibration block to avoid affecting the rotation of the screening cylinder.

[0009] Preferably, the rotating path of the vibration block contacts the striking block, and the striking block and the vibration block are both hemispherical in shape.

[0010] Preferably, the back side of the support frame is rotatably connected to a rotating rod through a supporting frame, the outer wall of the rotating rod is connected to a spiral conveying blade, and the spiral conveying blade contacts the inner wall of the screening cylinder, the outer wall of the rotating rod is connected to a first bevel gear, and the first bevel gear is meshingly connected to the second bevel gear. When the second bevel gear rotates, the rotating rod connected to the spiral conveying blade is driven to rotate through the meshing first bevel gear, so as to facilitate the movement of materials in the screening cylinder. Materials of appropriate size are discharged from the filter holes of the screening cylinder, and larger ones are discharged from the opening on the back side of the screening cylinder. The materials can be screened continuously to improve the screening efficiency.

[0011] Preferably, a draw box is slidably connected to the left side of the support frame through a through slot, and is opened and closed in a pull-out manner. A collecting box is placed on the back of the support frame. The draw box is used to collect materials discharged from the filter holes of the screening cylinder, and the collecting box is used to discharge materials from the opening on the back of the screening cylinder.

[0012] Preferably, there are three connecting rods, which are evenly distributed at an angle of 120 degrees, and the connecting rods are C-shaped.

[0013] Preferably, a feed cylinder is connected to the front of the support frame via a support rod, and the feed cylinder is in contact with one end of the screening cylinder. A feed port is connected to the top of the feed cylinder, and materials are added from the feed port.

[0014] Preferably, the rotating rod and the spiral conveying blade both extend to the interior of the feed barrel, and the spiral conveying blade contacts the inner wall of the feed barrel.

[0015] By means of the above technical solution, the utility model provides a screening device for tantalum carbide, which has at least the following beneficial effects:

[0016] 1. The rotation of the screening drum of the utility model will drive the vibration block to rotate at the same time. When the vibration block contacts the knocking block, it will vibrate due to the impact, so as to shake off the materials in the filter holes of the screening drum to avoid clogging of the filter holes and affecting the screening efficiency. The knocking block is supported by a gas spring, so that it will retract when it is hit by the vibration block to avoid affecting the rotation of the screening drum.

[0017] 2. According to the utility model, while the second bevel gear rotates, the meshing first bevel gear drives the rotating rod connected to the spiral conveying blade to rotate, so as to facilitate the movement of materials in the screening cylinder. Materials of appropriate sizes are discharged from the filter holes of the screening cylinder, and larger materials are discharged from the opening on the back of the screening cylinder. The materials can be screened continuously to improve the screening efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application:

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a top view of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the screening cylinder in the utility model;

[0022] Figure 4 This is a diagram showing the connection relationship between the transfer rod and the spiral conveying blade in the utility model.

[0023] In the figure: 1. support frame; 11. drawer box; 12. collection box; 2. screening mechanism; 21. screening cylinder; 22. rotating rod; 221. spiral conveying blade; 23. support frame; 24. first bevel gear; 25. second bevel gear; 26. motor; 27. mounting plate; 28. third bevel gear; 29. ​​connecting rod; 3. vibration assembly; 31. gas spring; 32. knocking block; 33. vibration block; 4. feed cylinder; 41. support rod; 42. feed port. DETAILED DESCRIPTION

[0024] 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.

[0025] Example 1

[0026] A screening device for tantalum carbide, such as Figure 1-Figure 4 As shown, it includes a support frame 1, a screening mechanism 2 is arranged inside the support frame 1, and the screening mechanism 2 includes a screening cylinder 21, the screening cylinder 21 is rotatably connected to the inner walls on both sides of the support frame 1, the back of the screening cylinder 21 is connected to the third bevel gear 28 through a connecting rod 29, and one side of the third bevel gear 28 is meshedly connected to the second bevel gear 25, the outer wall of the support frame 1 is connected to the motor 26 through a mounting plate 27, and the output end shaft of the motor 26 is connected to the second bevel gear 25, and a vibration component 3 is arranged inside the support frame 1; the vibration component 3 includes a gas spring 31, the gas spring 31 is respectively connected to both sides of the inner wall of the support frame 1, and one end of the gas spring 31 is connected to a knocking block 32, and a vibration block 33 is connected to the position of the outer wall of the screening cylinder 21 corresponding to the knocking block 32, and the second bevel gear 25 is driven to rotate by starting the motor 26, and then the meshing third bevel gear The connecting rod 29 connected to the wheel 28 drives the screening drum 21 to rotate, so that the material in the screening drum 21 rolls for screening, and because the screening drum 21 is in a rotating state, the position of the filter hole of the screening drum 21 is constantly changing. When it is at the top of the screening drum 21, the filter hole is in an inverted state, making it difficult for the material to adhere to the filter hole, resulting in blockage. The rotation of the screening drum 21 will drive the vibration block 33 to rotate. When the vibration block 33 contacts the knocking block 32, it will vibrate due to the impact, so as to facilitate the shaking off of the material in the filter hole of the screening drum 21, so as to avoid the filter hole being blocked and affecting the screening efficiency. The knocking block 32 is supported by the gas spring 31, so that when it is affected by the vibration block 33, it will retract to avoid affecting the rotation of the screening drum 21. The rotation path of the vibration block 33 contacts the knocking block 32, and the knocking block 32 and the vibration block 33 are both hemispherical in shape.

[0027] In this embodiment, the second bevel gear 25 is driven to rotate by starting the motor 26, and then the connecting rod 29 connected by the meshing third bevel gear 28 drives the screening drum 21 to rotate, so that the material in the screening drum 21 is tumbled for screening, and because the screening drum 21 is in a rotating state, this causes the position of the filter hole of the screening drum 21 to change all the time. When it is at the top of the screening drum 21, the filter hole is in an inverted state, making it difficult for the material to adhere to the filter hole, resulting in blockage. When the screening drum 21 rotates, the vibration block 33 is driven to rotate. When the vibration block 33 contacts the knocking block 32, it will vibrate due to the impact, so as to facilitate the shaking off of the material in the filter hole of the screening drum 21, so as to avoid the blockage of the filter hole affecting the screening efficiency, and the knocking block 32 is supported by the gas spring 31, so that it will retract when it is affected by the vibration block 33 to avoid affecting the rotation of the screening drum 21.

[0028] Example 2

[0029] like Figure 2 , Figure 4 As shown, the back of the support frame 1 is rotatably connected to a rotating rod 22 through a supporting frame 23, and the outer wall of the rotating rod 22 is connected to a spiral conveying blade 221, and the spiral conveying blade 221 contacts the inner wall of the screening cylinder 21, and the outer wall of the rotating rod 22 is connected to a first bevel gear 24, and the first bevel gear 24 is meshed and connected with the second bevel gear 25. When the second bevel gear 25 rotates, the rotating rod 22 connected to the spiral conveying blade 221 is driven to rotate through the meshing first bevel gear 24, so as to facilitate the movement of materials in the screening cylinder 21. Materials of suitable size are discharged from the filter holes of the screening cylinder 21, and larger materials are discharged from the opening on the back of the screening cylinder 21. The materials can be screened continuously to improve the screening efficiency. A draw box 11 is slidably connected to the side through a through groove, and is open and closed in a pull-out manner. A collecting box 12 is placed on the back of the support frame 1. The draw box 11 is used to collect materials discharged from the filter holes of the screening cylinder 21, and the collecting box 12 is used to discharge materials from the back opening of the screening cylinder 21. There are three connecting rods 29, which are evenly distributed at 120 degrees, and the shape of the connecting rod 29 is C-shaped. The front of the support frame 1 is connected to the feed cylinder 4 through the support rod 41, and the feed cylinder 4 is in contact with one end of the screening cylinder 21. The top of the feed cylinder 4 is connected to the feed port 42, and the material is added from the feed port 42. The rotating rod 22 and the spiral conveying blade 221 both extend to the interior of the feed cylinder 4, and the spiral conveying blade 221 is in contact with the inner wall of the feed cylinder 4.

[0030] In this embodiment, the material is added from the feed port 42, and while the second bevel gear 25 rotates, the rotating rod 22 connected to the spiral conveying blade 221 is driven to rotate through the meshing first bevel gear 24, so as to facilitate the movement of the material in the screening cylinder 21. The material of suitable size is discharged from the filter holes of the screening cylinder 21, and the larger one is discharged from the opening on the back of the screening cylinder 21. The material can be screened continuously to improve the screening efficiency.

[0031] When the screening device for tantalum carbide of the utility model is in use, the material is added from the feed port 42, the second bevel gear 25 is driven to rotate by starting the motor 26, and the connecting rod 29 connected by the meshing third bevel gear 28 is driven to rotate the screening drum 21, so that the material in the screening drum 21 is tumbled for screening, and while the second bevel gear 25 rotates, the meshing first bevel gear 24 drives the rotating rod 22 connected to the spiral conveying blade 221 to rotate, so as to facilitate the movement of the material in the screening drum 21, and the material of suitable size is discharged from the filter hole of the screening drum 21, and the larger one is discharged from the opening on the back of the screening drum 21, so that the material can be screened continuously to improve the screening efficiency, and while the screening drum 21 rotates, the vibration block 33 is driven to rotate, and when the vibration block 33 contacts the knocking block 32, it will vibrate due to the impact, so as to facilitate the shaking off of the material in the filter hole of the screening drum 21, so as to avoid the filter hole being blocked and affecting the screening efficiency, and the knocking block 32 is supported by the gas spring 31, so that it will retract when it is affected by the vibration block 33 to avoid affecting the rotation of the screening drum 21.

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

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A screening device for tantalum carbide, comprising a support frame (1), characterized in that: A screening mechanism (2) is arranged inside the support frame (1), and the screening mechanism (2) comprises a screening cylinder (21), and the screening cylinder (21) is rotatably connected to the inner walls on both sides of the support frame (1); the back side of the screening cylinder (21) is connected to a third bevel gear (28) via a connecting rod (29), and one side of the third bevel gear (28) is meshingly connected to a second bevel gear (25); the outer wall of the support frame (1) is connected to a motor (26) via a mounting plate (27), and the output end shaft of the motor (26) is connected to the second bevel gear (25); and a vibration component (3) is arranged inside the support frame (1); The vibration assembly (3) comprises a gas spring (31), the gas spring (31) being respectively connected to two sides of the inner wall of the support frame (1), and one end of the gas spring (31) being connected to a knocking block (32), and a vibration block (33) being connected to the outer wall of the screening cylinder (21) at a position corresponding to the knocking block (32).

2. A screening device for tantalum carbide according to claim 1, characterized in that: The vibration block (33) rotates along a path that contacts the striking block (32), and the striking block (32) and the vibration block (33) are both hemispherical in shape.

3. A screening device for tantalum carbide according to claim 1, characterized in that: The back side of the support frame (1) is rotatably connected to a rotating rod (22) via a supporting frame (23); the outer wall of the rotating rod (22) is connected to a spiral conveying blade (221), and the spiral conveying blade (221) contacts the inner wall of the screening cylinder (21); the outer wall of the rotating rod (22) is connected to a first bevel gear (24), and the first bevel gear (24) is meshingly connected to a second bevel gear (25).

4. A screening device for tantalum carbide according to claim 1, characterized in that: The left side of the support frame (1) is slidably connected to a drawer box (11) via a through slot, and can be opened and closed in a draw-and-pull manner. A collection box (12) is placed on the back of the support frame (1).

5. A screening device for tantalum carbide according to claim 1, characterized in that: The number of the connecting rods (29) is three, which are evenly distributed at an angle of 120 degrees, and the shape of the connecting rods (29) is C-shaped.

6. A screening device for tantalum carbide according to claim 3, characterized in that: The front side of the support frame (1) is connected to a feed cylinder (4) via a support rod (41), and the feed cylinder (4) is in contact with one end of the screening cylinder (21), and the top of the feed cylinder (4) is connected to a feed port (42).

7. A screening device for tantalum carbide according to claim 6, characterized in that: The rotating rod (22) and the spiral conveying blade (221) both extend to the interior of the feeding barrel (4), and the spiral conveying blade (221) contacts the inner wall of the feeding barrel (4).

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