Powder metallurgy particle oscillation grading device

Abstract

The powder metallurgy particle oscillation grading device comprises a screening box, a supporting frame used for supporting is installed at the bottom of the screening box, a feeding opening used for feeding is formed in one side of the outer wall of the screening box, and partition plates used for partitioning the inner space of the screening box are installed at the two ends of the inner wall of the screening box; a screening barrel communicating with the feeding opening is installed between the two partition plates. A crushing assembly used for crushing materials is installed on the side, close to the screening barrel, of the partition plate, and a driving assembly used for driving the screening barrel and the rotating disc to rotate is installed on one side of the screening box. A control assembly used for adjusting current on the driving assembly is installed on the inner wall of one side of the screening box. A discharging pipe used for discharging is installed at the bottom of the screening box. And by arranging the crushing assembly and the control assembly, the materials do not need to be taken out, crushed and then screened, the material screening convenience is improved, and waste caused by overload of output current of the driving motor can be avoided.

Description

Technical Field

[0001] The invention relates to the field of metallurgical equipment, in particular to a powder metallurgy particle oscillation classification device. Background Art

[0002] Powder metallurgy is an industrial technology that produces metal powder or a mixture of metal powder and non-metallic powder as raw material, and then produces metal materials, composite materials and various types of products through forming and sintering. Therefore, in the powder metallurgy process, it is necessary to use a grading method to screen out metallurgical powders of different particle finenesses.

[0003] However, current powder grading equipment has the following limitations: During the screening process, oversized particles must be manually removed, crushed, and re-fed, resulting in a cumbersome operation process and significantly reduced grading efficiency. Furthermore, the crushing unit lacks intelligent power regulation, and the motor always operates at a constant power, which can easily lead to overload when encountering materials of varying hardness or particle size, resulting in unnecessary energy loss. Therefore, the present invention provides a powder metallurgy particle oscillation grading device to address the aforementioned issues. Summary of the Invention

[0004] The object of the present invention is to provide a powder metallurgy particle oscillation classification device to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A powder metallurgy particle oscillation grading device comprises a screening box, a support frame for supporting is installed at the bottom of the screening box, a feeding port for feeding is opened on one side of the outer wall of the screening box, partition plates for dividing the internal space of the screening box are installed at both ends of the inner wall of the screening box, and a screening barrel connected to the feeding port is installed between the two partition plates; a crushing assembly for crushing the material is installed on the side of the partition plate close to the screening barrel, and the crushing assembly comprises a rotating disk rotatably connected to the outer wall of the partition plate, a support plate arranged in a circle and installed on the outer wall of the rotating disk, and a crushing roller slidably connected to the outer wall of the support plate for extrusion and crushing, and a roller for crushing is installed on the rotating disk. An adjustment component for adjusting the position of the crushing roller, a driving component for driving the screening barrel and the rotating disk to rotate is installed on one side of the screening box; a control component for adjusting the current on the driving component is installed on the inner wall of one side of the screening box, and the control component is communicated with the inner wall of the crushing roller; a discharge pipe for discharging materials is installed at the bottom of the screening box, and a screening disk for screening is slidably connected to the inner wall of the discharge pipe, and a plurality of second screening holes for passing materials are opened on the outer wall of the screening disk, and a retractable component for adjusting the aperture of the second screening holes is installed in the screening disk; a conveying component for gas conveying to the adjustment component and the retractable component is installed at one end of the screening box.

[0007] As a further solution of the present invention, the control component includes a third air pipe, a fourth air pipe and a negative electrode. The control box is fixedly connected to one side of the inner wall of the screening box. The third air pipe is fixedly connected to the inner wall of the control box. The fourth air pipe is fixedly connected to the middle position of the outer wall of the third air pipe. The inner wall of the fourth air pipe is slidably connected to the sixth piston plate. The diameter in the middle of the inner wall of the fourth air pipe is smaller than the diameter of the inner walls at both ends. A plurality of through-going air suction holes are provided in the middle position of the inner wall of the fourth air pipe. The negative electrode is fixedly connected to the side of the control box away from the fourth air pipe. A retractable conductive sleeve is installed at one end of the negative electrode, and a positive electrode is installed at the other end of the conductive sleeve. A fifth connecting rod for connection is installed on the wall opposite to the sixth piston plate and the positive electrode.

[0008] As a further solution of the present invention, the control component also includes a second air pipe, which is installed on the side of the control box close to the third air pipe. The inner wall of the second air pipe is slidably connected to the fourth piston plate, and an L-shaped connecting rod is installed at the bottom end of the fourth piston plate. The L-shaped connecting rod is slidably connected to the inner wall of the third air pipe, and both ends of the third air pipe are slidably connected to the fifth piston plate, and a connecting pipe connected to the fourth air pipe is installed on the inner wall of the third air pipe, and a mounting rod is installed at the tail end of the L-shaped connecting rod, and extrusion disks for extrusion are installed at both ends of the mounting rod.

[0009] As a further solution of the present invention, the inner wall of the second air pipe is connected to a fourth connecting pipe, the other end of the fourth connecting pipe is installed at the axial position of the inner wall of the crushing roller, the outer wall of the crushing roller is provided with a second air cavity, and the second air cavity is provided with a through groove connected to the inner wall of the fourth connecting pipe near one end of the fourth connecting pipe, the inner wall of the second air cavity is slidably connected to the first piston plate, the first piston plate is installed with a rotating seat away from the end of the fourth connecting pipe, and the inner wall of the rotating seat is rotatably connected to a crushing ball for crushing.

[0010] As a further solution of the present invention, the driving assembly includes a driving motor, a connecting shaft and an installation shaft. The driving motor is installed at one end of the screening box, the output end of the driving motor is installed with a transmission shaft, one end of the connecting shaft is installed at one end of the transmission shaft, the screening barrel is installed on the outer wall of the connecting shaft, the installation shaft is rotatably connected to one end of the partition plate and fixedly connected to the inner wall of the rotating disk, and the inner wall of the connecting shaft is installed with a first connecting rod for driving the installation shaft to rotate.

[0011] As a further solution of the present invention, the other end of the first connecting rod is fixedly connected to a transmission plate at an axial position, the first connecting rod and the transmission plate are both rotatably connected to the inner wall of the connecting shaft, a transmission ring is installed on the inner wall of the connecting shaft on one side of the transmission plate, the second transmission block is slidably connected to the inner wall of the transmission plate, and the first transmission block is installed on the side of the transmission ring close to the transmission plate. The cross-section of the first transmission block and the second transmission block is semicircular at one end and rectangular at the other end and is in opposite directions.

[0012] As a further solution of the present invention, the adjustment assembly includes a first air pipe, a sliding sleeve and an adjustment plate. The first air pipe is fixedly connected to the inner wall of the support plate, the sliding sleeve is slidably connected to the bottom of the inner wall of the first air pipe, the inner wall of the sliding sleeve is slidably connected to the second piston plate, the adjustment plate is slidably connected to the top position of the inner wall of the first air pipe, a fourth connecting rod is fixedly connected to the opposite wall surfaces of the sliding sleeve and the adjustment plate, the top of the adjustment plate is fixedly connected to the second connecting rod, and the other end of the second connecting rod is installed on the outer wall of the crushing roller.

[0013] As a further solution of the present invention, a second connecting pipe is installed at the bottom end of the screening disc, a third air cavity connected to the second connecting pipe is opened on the inner wall of the screening disc, a plurality of fourth air cavities connected to the third air cavity are opened on the inner wall of the screening disc, an installation shaft is slidably connected to the inner wall of the fourth air cavity, and an elastic ring is installed on the inner wall of the second screening hole, a plurality of lifting ears are fixedly connected to the middle of the outer wall of the elastic ring, a lifting rope is fixedly connected to the outer wall of the third piston plate, and the lifting rope passes through the lifting ear.

[0014] As a further solution of the present invention, the conveying assembly includes an air pump, a first joint and a second joint. The air pump is installed at one end of the screening box, the first joint is installed on the outer wall of the screening box at the bottom of the air pump, a first connecting pipe is connected between the air pump and the top of the first joint, the second connecting pipe is installed on one side of the first joint, the second joint is installed on the axis position of the partition plate close to the control box side, a third connecting pipe is connected between the first joint and the second joint, and a first air cavity connected to the first air pipe is opened on the inner wall of the partition plate, and the other end of the first air cavity is connected to the second joint.

[0015] As a further solution of the present invention, a crossbeam for enhancing stability is installed on the opposite wall of the support frame, a side panel is installed in the middle of the top of the crossbeam, a collecting box is rotatably connected between the two side panels, a weighing structure for weighing materials is installed in the collecting box, the weighing structure is electrically connected to the driving motor and the air pump, a servo motor for driving the collecting box to rotate is installed on one side of the side panel, the servo motor is electrically connected to the weighing structure, and a box door for unloading is rotatably connected to one side of the collecting box.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. When the present invention is used, through the provided crushing assembly and control assembly, when the material is screened, the unscreened material can be crushed, and there is no need to take it out and crush it before screening, thereby improving the convenience of material screening, and the output current of the drive motor can be adjusted according to the pressure of the material squeezed on the crushing roller during screening, thereby avoiding waste caused by overload of the output current of the drive motor.

[0018] 2. When the present invention is used, the crushing roller is set, which can drive the rotation of the screening barrel and the fixation of the crushing roller by the rotation of the driving motor to one side, and a relative rotation is generated between the screening barrel and the crushing roller, and then the material is broken up by the crushing roller, avoiding the aggregation of small-particle materials and making it difficult to discharge through the first screening hole, thereby affecting the accuracy of material screening.

[0019] 3. When the present invention is used, the conveying component and the retracting component are provided, and the gas can be conveyed to the screening disk through the conveying component to adjust the aperture of the elastic ring, and then the material can be screened from small to large. There is no need to arrange multiple screening disks for screening, which reduces the volume of the equipment and improves the convenience of material screening.

[0020] 4. When the present invention is in use, the third air pipe and the fourth air pipe are set, and the fourth piston plate and the L-shaped connecting rod can be moved up and down by the pressure and pressure difference of the crushing ball, and the fifth piston plates at the upper and lower ends are squeezed by the up and down movement of the extrusion plate to squeeze the gas in the third air pipe, so that the gas delivered to the fourth air pipe can be adjusted according to the pressure and pressure difference, and the external gas can be sucked into the fourth air pipe through the suction hole through the air pressure in the middle of the fourth air pipe, so as to avoid the air pressure being too low to squeeze and move the sixth piston plate, thereby affecting the accuracy of adjustment of the drive motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic structural diagram of a powder metallurgy particle oscillation classification device.

[0022] Figure 2 It is a cross-sectional view of a powder metallurgy particle oscillation classification device.

[0023] Figure 3 This is a cross-sectional view of the screening barrel in a powder metallurgy particle oscillation classification device.

[0024] Figure 4 This is a cross-sectional view of the crushing component in a powder metallurgy particle oscillation classification device.

[0025] Figure 5 A powder metallurgy particle oscillation classification device Figure 4 Magnified view of part A.

[0026] Figure 6 This is a cross-sectional view of the first air pipe in a powder metallurgy particle oscillation classification device.

[0027] Figure 7 A powder metallurgy particle oscillation classification device Figure 6 Magnified view of part A.

[0028] Figure 8 A powder metallurgy particle oscillation classification device Figure 6 Magnified view of part B.

[0029] Figure 9 This is a cross-sectional view of the control box in a powder metallurgy particle oscillation classification device.

[0030] Figure 10 This is a schematic diagram of the structure of the control components in a powder metallurgy particle oscillation classification device.

[0031] Figure 11 This is a cross-sectional view of the feed pipe in a powder metallurgy particle oscillation classification device.

[0032] Figure 12 This is a cross-sectional view of the screening disk in a powder metallurgy particle oscillation classification device.

[0033] Figure 13 This is a schematic diagram of the structure of an elastic ring in a powder metallurgy particle oscillation classification device.

[0034] Figure 14 A partial cross-sectional view of a driving component in a powder metallurgy particle oscillation classification device.

[0035] Figure 15 This is a cross-sectional view of the transmission disc and transmission ring in a powder metallurgy particle oscillation classification device.

[0036] Figure 16 This is a schematic diagram of the structure of a support frame in a powder metallurgy particle oscillation classification device.

[0037] In the figure: 100, screening box; 110, feed port; 120, connecting seat; 130, driving motor; 131, transmission shaft; 132, connecting shaft; 133, transmission ring; 134, first transmission block; 140, partition plate; 141, first air cavity; 150, screening barrel; 151, first screening hole;

[0038] 200, support frame; 210, crossbeam; 220, collection box; 221, servo motor; 222, side panel; 223, curved chute; 224, sliding rod; 225, box door;

[0039] 300, connecting plate; 301, squeezing ball;

[0040] 400, rotating disk; 410, support plate; 411, first slider; 420, crushing roller; 421, second air chamber; 422, through groove; 423, first piston plate; 424, rotating seat; 425, crushing ball; 430, mounting shaft; 431, gear ring; 432, first transmission gear; 433, second transmission gear; 434, first connecting rod; 435, transmission disk; 436, second transmission block; 437, second slider; 438, first spring; 440, first air pipe; 441, second connecting rod; 442, third connecting rod; 443, fourth connecting rod; 444, locking hole; 450, sliding sleeve; 451, second piston plate; 452, guide rod; 453, second spring; 460, adjusting plate; 461, extrusion block; 462, pressure block; 463, third spring; 464, locking rod;

[0041] 500, feed pipe; 510, screening plate; 511, second screening hole; 512, pressure-bearing ball; 513, third air chamber; 514, fourth air chamber; 520, fixing ring; 521, guide rod; 522, fourth spring; 530, third piston plate; 531, lifting rope; 540, elastic ring; 541, lifting lug;

[0042] 600, control box; 610, second air pipe; 611, fourth piston plate; 612, L-shaped connecting rod; 620, third air pipe; 621, fifth piston plate; 622, connecting pipe; 623, mounting rod; 624, extrusion plate; 630, fourth air pipe; 631, sixth piston plate; 632, fifth connecting rod; 633, air intake hole; 640, negative electrode; 641, positive electrode; 642, conductive sleeve;

[0043] 700, air pump; 710, first connector; 711, first connecting pipe; 712, second connecting pipe; 720, second connector; 721, third connecting pipe; 722, fourth connecting pipe. DETAILED DESCRIPTION

[0044] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0045] See also Figures 1 to 4In an embodiment of the present invention, a powder metallurgy particle oscillation classification device includes a screening box 100, a support frame 200 for supporting is installed at the bottom of the screening box 100, a feeding port 110 for feeding is opened on one side of the outer wall of the screening box 100, and partition plates 140 for dividing the internal space of the screening box 100 are installed at both ends of the inner wall of the screening box 100. Mounting rings are fixedly connected at both ends of the screening box 100, and the partition plates 140 are connected to the mounting rings by bolts. A screening barrel 150 connected to the feeding port 110 is installed between the two partition plates 140, and a plurality of first screening holes 151 for screening materials are opened on the outer wall of the screening barrel 150. The partition plates 140 are close to A crushing assembly for crushing the material is installed on one side of the screening barrel 150. The crushing assembly includes a rotating disk 400 rotatably connected to the outer wall of the partition plate 140, support plates 410 circumferentially arranged and installed on the outer wall of the rotating disk 400, and a crushing roller 420 slidably connected to the outer wall of the support plate 410 for extrusion and crushing. The outer wall of the support plate 410 has a first sliding groove, and the inner wall of the first sliding groove is slidably connected to a first slider 411. The crushing roller 420 is fixedly connected to the outer wall of one side of the first slider 411. An adjustment assembly for adjusting the position of the crushing roller 420 is installed on the rotating disk 400. A drive assembly for driving the screening barrel 150 and the rotating disk 400 to rotate is installed on one side of the screening box 100.

[0046] A control component for adjusting the current on the drive component is installed on the inner wall of one side of the screening box 100. The control component is connected to the inner wall of the crushing roller 420. The air pressure at the control component is adjusted by the pressure and pressure difference of the material when the crushing roller 420 is crushed.

[0047] A discharge pipe 500 for discharging materials is installed at the bottom of the screening box 100. A screening disc 510 for screening is slidably connected to the inner wall of the discharge pipe 500. A plurality of second screening holes 511 for passing materials are opened on the outer wall of the screening disc 510. A retractable assembly for adjusting the aperture of the second screening holes 511 is installed in the screening disc 510. The diameter of the first screening hole 151 is larger than the diameter of the second screening hole 511. The aperture of the second screening hole 511 is increased in sequence by the retractable assembly, and the materials can be discharged in order from small to large particle size, thereby performing graded screening on the materials.

[0048] A conveying assembly for conveying gas to the regulating assembly and the retractable assembly is installed at one end of the screening box 100 .

[0049] See Figure 9 and Figure 10, the control component includes a third air pipe 620, a fourth air pipe 630 and a negative electrode 640, one side of the inner wall of the screening box 100 is fixedly connected to the control box 600, the third air pipe 620 is fixedly connected to the inner wall of the control box 600, the fourth air pipe 630 is fixedly connected to the middle position of the outer wall of the third air pipe 620, the inner wall of the fourth air pipe 630 is slidably connected to the sixth piston plate 631, the diameter in the middle of the inner wall of the fourth air pipe 630 is smaller than the diameter of the inner wall at both ends, a plurality of penetrating air suction holes 633 are opened in the middle position of the inner wall of the fourth air pipe 630, the negative electrode 640 is fixedly connected to the side of the control box 600 away from the fourth air pipe 630, a retractable conductive sleeve 642 is installed at one end of the negative electrode 640, and a positive electrode 641 is installed at the other end of the conductive sleeve 642, an electrolyte solution is installed in the conductive sleeve 642, and the negative electrode 640 and the positive electrode 64 The conductive sleeve 642 is connected to form a closed circuit. A fifth connecting rod 632 is installed on the wall opposite the sixth piston plate 631 and the positive electrode 641. When the air pressure in the fourth air pipe 630 changes, the air flow passes through the middle of the fourth air pipe 630, where the inner diameter is smaller than that at the two ends. This accelerates the gas flow rate and reduces the air pressure, thereby generating an air pressure difference between the gas and the gas outside the fourth air pipe 630. Gas can then enter the fourth air pipe 630 from the outside through the air intake hole 633, increasing the total amount of gas in the fourth air pipe 630 and increasing the squeezing pressure on the sixth piston plate 631. The squeezing of the sixth piston plate 631 can drive the positive electrode 641 to move via the fifth connecting rod 632, adjusting the distance between the negative electrode 640 and the positive electrode 641, thereby changing the resistance between the two.

[0050] The control component also includes a second air pipe 610, which is installed on the side of the control box 600 close to the third air pipe 620, and both ends of the third air pipe 620 are in a closed state. A limiting groove is provided in the middle of the outer wall of the third air pipe 620 close to the second air pipe 610. The inner wall of the second air pipe 610 is slidably connected to the fourth piston plate 611, and an L-shaped connecting rod 612 is installed at the bottom end of the fourth piston plate 611. The L-shaped connecting rod 612 is slidably connected to the inner wall of the limiting groove on the third air pipe 620, and both ends of the third air pipe 620 are slidably connected to the fifth piston plate 621, and a connecting pipe 622 connected to the fourth air pipe 630 is installed on the inner wall of the third air pipe 620, and the connecting pipe 622 is connected to the third air pipe 620 at a position Between the fifth piston plate 621 and the closed part of the third air pipe 620, a mounting rod 623 is installed at the tail end of the L-shaped connecting rod 612, and extrusion plates 624 for extrusion are installed at both ends of the mounting rod 623. When gas changes occur in the second air pipe 610, the fourth piston plate 611 can move in the second air pipe 610. The movement of the fourth piston plate 611 can drive the extrusion plate 624 to move through the L-shaped connecting rod 612 and the mounting rod 623. The extrusion plate 624 squeezes the fifth piston plate 621 at both ends through movement. The fifth piston plate 621 is squeezed and slides in the third air pipe 620, which can squeeze the gas in the third air pipe 620 and transport it to the inner wall of the fourth air pipe 630 through the connecting pipe 622.

[0051] See Figure 4 and Figure 5The inner wall of the second air pipe 610 is connected to the fourth connecting pipe 722. The other end of the fourth connecting pipe 722 passes through the partition plate 140, the rotating disk 400, the support plate 410 and the first slider 411 and is installed on the axis position of the inner wall of the crushing roller 420. A plurality of groups of circumferentially arranged protrusions are fixedly connected to the outer wall of the crushing roller 420. A second air cavity 421 is opened at the protrusion. A through groove 422 is opened at the end of the second air cavity 421 close to the fourth connecting pipe 722 and connected to the inner wall of the fourth connecting pipe 722. The inner wall of the second air cavity 421 is slidably connected to the first piston plate 423. The end of the first piston plate 423 away from the fourth connecting pipe 722 is installed with a rotating seat 424. The inner wall of the rotating seat 424 is rotatably connected to a crushing ball 425 for crushing. When the crushing ball 425 crushes the material, the crushing ball 425 is squeezed by the material, driving the rotating seat 424 and the first piston plate 423 to slide in the second air chamber 421, and then the gas at the bottom of the second air chamber 421 is transported to the second air pipe 610 through the through groove 422 and the fourth connecting pipe 722 to squeeze the fourth piston plate 611. When the particle size of the material is large, the pressure on the crushing ball 425 is large, and due to the uneven particle size, the pressure difference will also increase, thereby increasing the distance and range of movement of the first piston plate 423. When the particle size of the material decreases, the pressure on the crushing ball 425 decreases and the pressure difference also decreases, reducing the distance and range of movement of the first piston plate 423.

[0052] See Figure 1 、 Figure 14 and Figure 15The driving assembly includes a driving motor 130, a connecting shaft 132 and a mounting shaft 430. A connecting seat 120 for connection is installed at one end of the screening box 100. The driving motor 130 is installed at one end of the connecting seat 120 on the screening box 100. A transmission shaft 131 is installed at the output end of the driving motor 130. The transmission shaft 131 passes through the connecting seat 120 and extends to the inner wall of the screening box 100. One end of the connecting shaft 132 is installed at one end of the transmission shaft 131. Flanges are installed on the opposite walls of the transmission shaft 131 and the connecting shaft 132. The two flanges are installed by bolts. The screening barrel 150 is installed on the outer wall of the connecting shaft 132. The mounting shaft 430 is rotatably connected to one end of the partition plate 140 and fixedly connected to the inner wall of the rotating disk 400. The inner wall of the connecting shaft 132 is installed with a first connecting rod 434 for driving the mounting shaft 430 to rotate. Specifically, the first connecting rod 434 is located at the axis of one end of the mounting shaft 430 The second transmission gear 433 is fixedly connected to the position, and an annular gear ring 431 is installed on the inner wall of the mounting shaft 430. The outer wall of the partition plate 140 is rotatably connected to the first transmission gear 432. The two ends of the first transmission gear 432 are respectively engaged with the second transmission gear 433 and the gear ring 431. When the connecting shaft 132 rotates, the screening barrel 150 can be driven to rotate, and the material inside can be screened through the first screening hole 151. When the first connecting rod 434 rotates, the first transmission gear 432 can be driven to rotate through the second transmission gear 433, and the first transmission gear 432 can drive the gear ring 431 to rotate, and then drive the rotating disk 400 to rotate through the mounting shaft 430, thereby driving the crushing roller 420 on the support plate 410 to rotate, and the transmission of the first transmission gear 432 drives the mounting shaft 430 and the second transmission gear 433 to rotate in the opposite direction.

[0053] The other end of the first connecting rod 434 is fixedly connected to a transmission plate 435 at an axial position. The first connecting rod 434 and the transmission plate 435 are both rotatably connected to the inner wall of the connecting shaft 132. A transmission ring 133 is installed on the inner wall of the connecting shaft 132 on one side of the transmission plate 435. The inner wall of the transmission plate 435 is slidably connected to the second transmission block 436. The outer wall of the transmission plate 435 is provided with a plurality of second sliding grooves arranged in a circumference. The inner wall of the second sliding groove is slidably connected to the second slider 437. The second transmission block 436 is fixedly connected to the outer wall of one side of the second slider 437. The second slider 437 is fixedly connected to the first spring 438 on the wall opposite to the second sliding groove. The transmission ring 133 is installed with the first transmission block 134 on the side close to the transmission plate 435. The cross-section of the first transmission block 134 and the second transmission block 436 is semicircular at one end and rectangular at the other end. In the opposite direction, when the connecting shaft 132 rotates to one side, the second transmission block 436 contacts the rectangular side of the first transmission block 134, and the rotation of the connecting shaft 132 can squeeze the second transmission block 436 through the transmission ring 133 and the first transmission block 134. The second transmission block 436 is squeezed to drive the transmission disk 435 and the first connecting rod 434 to rotate, and then drive the rotating disk 400 to rotate. When the connecting shaft 132 rotates to the other side, the first transmission block 134 and the semicircular side of the second transmission block 436 contact each other, and the first transmission block 134 can squeeze the second slider 437 and the first spring 438 by squeezing the second transmission block 436. The first spring 438 is squeezed and contracts, driving the second slider 437 and the second transmission block 436 to move downward. At this time, the transmission disk 435 will not be squeezed to rotate.

[0054] For more details, see Figure 11The inner wall of the discharge pipe 500 is located at the bottom of the screening disk 510 and is fixedly connected to a fixing ring 520. A plurality of first sliding holes are opened in the fixing ring 520. A guide rod 521 is slidably connected to the inner wall of the first sliding hole. The top of the guide rod 521 is fixedly connected to the bottom end of the screening disk 510. A fourth spring 522 is installed on the opposite wall of the screening disk 510 and the fixing ring 520. The fourth spring 522 is sleeved on the outer wall of the guide rod 521. A spherical pressure-bearing ball 512 is installed on the top of the screening disk 510. The outer wall of the connecting shaft 132 is fixedly connected to the connecting disk 300. The outer wall of the connecting disk 300 is fixedly connected to a plurality of circumferentially arranged extrusion balls 301. When the extrusion ball 301 rotates, it contacts the pressure-bearing ball 512. Specifically, when the connecting shaft 132 During rotation, the squeezing ball 301 can be driven to rotate through the connecting disk 300, and the squeezing ball 301 rotates to the pressure-bearing ball 512 to squeeze it. The fourth spring 522 at the bottom of the screening plate 510 can drive the screening plate 510 to move downward by squeezing and contracting, and the screening plate 510 is limited by the sliding of the guide rod 521 in the first sliding hole. When the squeezing ball 301 rotates out of the pressure-bearing ball 512, the screening plate 510 is driven to move upward under the elastic force of the fourth spring 522, and then the screening plate 510 is driven to vibrate under the reciprocating squeezing of the pressure-bearing ball 512 by the squeezing ball 301 and the elastic force of the fourth spring 522, and then the material is driven to fall from the second screening hole 511 through vibration for discharge, thereby improving the material discharge efficiency.

[0055] See Figure 6 、 Figure 7 and Figure 8The adjusting assembly includes a first air pipe 440, a sliding sleeve 450 and an adjusting plate 460. The inner wall of the support plate 410 is provided with a fixed groove on the side of the second sliding groove close to the axis of the rotating disk 400. The first air pipe 440 is fixedly connected to the inner wall of the fixed groove on the support plate 410. The sliding sleeve 450 is slidably connected to the bottom of the inner wall of the first air pipe 440. Overflow grooves for gas passage are provided at both ends of the sliding sleeve 450. The inner wall of the sliding sleeve 450 is slidably connected to the second piston plate 451. A plurality of guide rods 452 are fixedly connected to the inner wall opposite to the sliding sleeve 450. The second piston plate 451 is slidably connected to the outer wall of the guide rod 452. The adjusting plate 460 is slidably connected to the top position of the inner wall of the first air pipe 440. The sliding sleeve 4 50 and the adjusting plate 460 are fixedly connected with a fourth connecting rod 443, and the top of the adjusting plate 460 is fixedly connected with a second connecting rod 441, and the other end of the second connecting rod 441 is installed on the outer wall of the first slider 411 on the crushing roller 420. When the gas enters the first air pipe 440, the second piston plate 451 can be squeezed to drive the second piston plate 451 to move up to the inner wall of the sliding sleeve 450 to squeeze the sliding sleeve 450. The sliding sleeve 450 can move under the squeezing and drive the adjusting plate 460 to move through the fourth connecting rod 443. The adjusting plate 460 can drive the first slider 411 to slide in the first sliding groove through the second connecting rod 441, and then drive the crushing roller 420 to move.

[0056] More specifically, the adjustment assembly further includes an extrusion block 461, a pressure block 462, and a third spring 463 for locking the adjustment plate 460. The inner walls on both sides of the adjustment plate 460 are provided with a second sliding hole penetrating therethrough. The third spring 463 is slidably connected to the inner wall of the second sliding hole on the adjustment plate 460. Locking holes 444 adapted to the third spring 463 are provided at both ends of the first air pipe 440. The pressure block 462 is fixedly connected to the axial position of one end of the third spring 463. The pressure block 462 and the adjustment plate 4 60 is fixedly connected to the wall surface opposite to the second piston plate 451, and the lock rod 464 is sleeved on the outer wall of the third spring 463. The top of the second piston plate 451 is fixedly connected to the third connecting rod 442. The third connecting rod 442 is slidably connected to the fourth connecting rod 443, the adjustment plate 460 and the inner wall of the second connecting rod 441. The sliding sleeve 450 and the wall surface opposite to the second piston plate 451 are fixedly connected to the second spring 453. The second spring 453 is sleeved on the outer wall of the third connecting rod 442. The outer wall is fixedly connected with an extrusion block 461. Both ends of the extrusion block 461 are truncated cone-shaped. The pressure block 462 contacts the extrusion block 461. Specifically, when the second piston plate 451 moves in the sliding sleeve 450, the extrusion block 461 can be driven to move by the third connecting rod 442. At this time, the pressure block 462 contacts the extrusion block 461 under the elastic force of the locking rod 464, and the third spring 463 can be removed from the locking hole 444 to release the limit of the adjustment plate 460. When the adjustment is completed, At this time, the second piston plate 451 is driven to reset under the action of the elastic force of the second spring 453, and then the extrusion block 461 is driven to move and squeeze the pressure block 462 through the third connecting rod 442, and then the third spring 463 is driven to slide out of the second sliding hole and inserted into the locking hole 444 to lock the adjustment plate 460. When the crushing roller 420 is squeezed, the first slider 411 and the second connecting rod 441 squeeze and move the adjustment plate 460, causing the crushing roller 420 to move, affecting the crushing of the material.

[0057] See Figure 12 and Figure 13, a second connecting pipe 712 is installed at the bottom end of the screening disc 510, and a third air cavity 513 connected to the second connecting pipe 712 is opened on the inner wall of the screening disc 510, and a plurality of fourth air cavities 514 connected to the third air cavity 513 are opened on the inner wall of the screening disc 510. The inner wall of the fourth air cavity 514 is slidably connected to the mounting shaft 430, and an elastic ring 540 is installed on the inner wall of the second screening hole 511. The elastic ring 540 is made of elastic material, and a plurality of lifting ears 541 are fixedly connected to the middle of the outer wall of the elastic ring 540. The outer wall of the third piston plate 530 is fixedly connected to the lifting rope 531, and the lifting rope 531 passes through the lifting ear 541. When the gas in the second connecting pipe 712 is transported to the third air cavity 513 and then to the fourth air cavity 514, the third piston plate 530 is squeezed. When the third piston plate 530 is squeezed and moved, the aperture of the elastic ring 540 can be driven to change by the elastic force of the lifting rope 531 and the elastic ring 540.

[0058] See Figure 2 and Figure 3 The conveying assembly includes an air pump 700, a first connector 710 and a second connector 720. The air pump 700 is installed at one end of the screening box 100. The first connector 710 is installed on the outer wall of the screening box 100 and is located at the bottom of the air pump 700. A first connecting pipe 711 is connected between the air pump 700 and the top of the first connector 710. The first connector 710 is located at the third connecting pipe 721 and the second connecting pipe 712. A solenoid valve for controlling opening and closing is provided. The second connecting pipe 712 is installed on one side of the first connector 710. The second connector 720 is installed on the axis of the partition plate 140 close to the control box 600. Position, a third connecting pipe 721 is connected between the first joint 710 and the second joint 720, and a first air cavity 141 connected to the first air pipe 440 is opened on the inner wall of the partition plate 140, and the other end of the first air cavity 141 is connected to the second joint 720, and the fourth connecting pipe 722 passes through the inner walls of the partition plate 140 and the second joint 720. The gas generated at the air pump 700 can be transported to the first joint 710 through the first connecting pipe 711, and the gas can be transported to the rotating disk 400 and the discharge pipe 500 through the second connecting pipe 712 and the third connecting pipe 721 through the control of the solenoid valve.

[0059] See Figure 16, a crossbeam 210 for strengthening stability is installed on the wall opposite to the support frame 200, a side plate 222 is installed in the middle of the top of the crossbeam 210, the collection box 220 is rotatably connected between the two side plates 222, a weighing structure for weighing materials is installed in the collection box 220, the weighing structure weighs the materials in the collection box 220, the weighing structure is connected to the drive motor 130 and the air pump 700 by electrical signals, the two ends of the top of the crossbeam 210 are fixedly connected with an arc-shaped slide 223, a sliding rod 224 is slidably connected in the arc-shaped slide 223, and the sliding rod 224 is fixed It is connected to the outer wall of the collection box 220, and a servo motor 221 for driving the collection box 220 to rotate is installed on one side of the side plate 222. A rotating shaft is installed on the output end of the servo motor 221. The rotating shaft passes through the side plate 222 and is fixedly connected to the outer wall of the collection box 220. The servo motor 221 is connected to the electrical signal of the weighing structure. A box door 225 for unloading is rotatably connected to one side of the collection box 220. When the material falls from the second screening hole 511, the material can fall into the collection box 220 for collection. When the material does not fall for a period of time, the weighing structure will The signal is transmitted to the servo motor 221 and the air pump 700. The servo motor 221 drives the collection box 220 to rotate. At this time, under the action of gravity, the box door 225 is driven to rotate and expand, and the material can fall from the box door 225 for unloading. The servo motor 221 rotates in the opposite direction to drive the collection box 220 to reset. The air pump 700 generates gas and transmits the gas to the screening disk 510 through the electromagnetic valve to increase the aperture of the elastic ring 540. The material is continued to be unloaded and this process is repeated. After the aperture is increased for a period of time, the weighing structure does not feel the change in mass. At this time, the weighing structure transmits the signal to the air pump 700 and the drive motor 130. The gas on the air pump 700 is controlled by the solenoid valve and transported to the first air pipe 440 through the third connecting pipe 721 and the first air cavity 141 to adjust the position of the crushing roller 420, reduce the distance between the crushing roller 420 and the screening barrel 150, and reverse the rotation of the driving motor 130 to drive the rotating disk 400, the support plate 410 and the crushing roller 420 and the screening barrel 150 to rotate in the opposite direction. The crushing roller 420 can crush the material in the screening barrel 150 that has not passed through the first screening hole 151.

[0060] The working principle of the present invention is as follows: when graded screening is required, the material is added to the inner wall of the screening barrel 150 through the feed port 110, the drive motor 130 is turned on, and the screening barrel 150 is driven to rotate via the transmission shaft 131 and the connecting shaft 132. A portion of the material in the screening barrel 150 can pass through the first screening hole 151 and fall into the screening plate 510, and then pass through the second screening hole 511 to be screened and fall into the bottom collection box 220 for collection, while the other portion of the material remains in the screening barrel 150;

[0061] When the weighing structure in the collection box 220 does not produce a mass change for a period of time, the weighing structure transmits an electrical signal to the air pump 700, and through the control of the solenoid valve, the gas is transported to the screening disc 510 through the first connecting pipe 711, the first joint 710 and the second connecting pipe 712. The gas squeezes the third piston plate 530, driving the length of the hanging rope 531 wound around the elastic ring 540 to change, and the elastic force of the elastic ring 540 drives the aperture of the elastic ring 540 to change, and the material is continuously discharged. By repeating this process, the material can be discharged in order from small to large for multi-stage screening;

[0062] When the aperture of the elastic ring 540 changes for a period of time and the weighing structure does not produce a mass change, the weighing structure drives the driving motor 130 to reverse and drive the rotating disk 400, the support plate 410 and the crushing roller 420 to rotate, and the gas is transported to the first air pipe 440 through the third connecting pipe 721, the second joint 720 and the first air cavity 141 through the control of the air pump 700 and the solenoid valve, and the sliding sleeve 450, the fourth connecting rod 443, the adjustment plate 460 and the second connecting rod 441 are driven to move by the air pressure on the guide rod 452. The second connecting rod 441 can move the crushing roller 420 through the second connecting rod 441, and the distance between the crushing roller 420 and the screening barrel 150 is reduced. Then, the crushing roller 420 and the screening barrel 150 rotate in the opposite direction to crush the material in the screening barrel 150, and the material is discharged again.

[0063] When crushing is in progress, the crushing ball 425 is squeezed by the material, and the first piston plate 423 slides in the second air chamber 421 to generate gas changes, and is transported to the second air pipe 610 through the through groove 422 and the fourth connecting pipe 722. The fourth piston plate 611 and the L-shaped connecting rod 612 change the position of the mounting rod 623 and the extrusion plate 624, which causes the squeezing of the fifth piston plate 621 to generate gas changes, and drives the sixth piston plate 631 to move through the connecting pipe 622 and the fourth air pipe 630. The movement of the sixth piston plate 631 adjusts the distance between the negative electrode 640 and the positive electrode 641 through the fifth connecting rod 632, and then the resistance at the place where the negative electrode 640 and the positive electrode 641 are connected to the drive motor 130 changes, thereby adjusting the output power of the drive motor 130.

[0064] When the present invention is in use, through the provided crushing components and control components, when the material is screened, the unscreened material can be crushed, and there is no need to take it out and crush it before screening, thereby improving the convenience of material screening, and the output current at the drive motor 130 can be adjusted according to the pressure of the material squeezed on the crushing roller 420 during screening, thereby avoiding waste caused by overload of the output current of the drive motor 130.

[0065] By setting the crushing roller 420, the rotation of the screening barrel 150 and the fixation of the crushing roller 420 can be driven by the rotation of the driving motor 130 to one side, and relative rotation is generated between the screening barrel 150 and the crushing roller 420, and then the material is broken up by the crushing roller 420, avoiding the aggregation of small-particle-size materials and making it difficult to discharge through the first screening hole 151, thereby affecting the accuracy of material screening.

[0066] By setting up the conveying component and the retracting component, the gas can be conveyed to the screening disk 510 through the conveying component to adjust the aperture of the elastic ring 540, and then the material can be screened from small to large. There is no need to arrange multiple screening disks 510 for screening, which reduces the equipment volume and improves the convenience of material screening.

[0067] By setting up the third air pipe 620 and the fourth air pipe 630, the fourth piston plate 611 and the L-shaped connecting rod 612 can be moved up and down by the pressure and pressure difference exerted on the crushing ball 425, and the fifth piston plate 621 at the upper and lower ends can be squeezed by the up and down movement of the extrusion plate 624 to squeeze the gas in the third air pipe 620, so that the gas delivered to the fourth air pipe 630 can be adjusted according to the pressure and pressure difference, and the external gas can be sucked into the fourth air pipe 630 through the suction hole 633 through the air pressure in the middle of the fourth air pipe 630, so as to avoid the air pressure being too low to squeeze and move the sixth piston plate 631, thereby affecting the accuracy of adjustment of the drive motor 130.

[0068] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A powder metallurgy particle oscillation classification device, comprising a screening box (100), characterized in that: A support frame (200) is installed at the bottom of the screening box (100) for supporting the screening box. A feeding port (110) for feeding is provided on one side of the outer wall of the screening box (100). Partition plates (140) for separating the internal space of the screening box (100) are installed at both ends of the inner wall of the screening box (100). A screening barrel (150) connected to the feeding port (110) is installed between the two partition plates (140). A crushing assembly for crushing materials is installed on one side of the partition plate (140) close to the screening barrel (150), the crushing assembly comprising a rotating disk (400) rotatably connected to the outer wall of the partition plate (140), support plates (410) circumferentially arranged and installed on the outer wall of the rotating disk (400), and crushing rollers (420) slidably connected to the outer wall of the support plates (410) for extrusion and crushing, an adjusting assembly for adjusting the position of the crushing rollers (420) is installed on the rotating disk (400), and a driving assembly for driving the screening barrel (150) and the rotating disk (400) to rotate is installed on one side of the screening box (100); A control component for adjusting the current on the driving component is installed on the inner wall of one side of the screening box (100), and the control component is connected to the inner wall of the crushing roller (420); A discharge pipe (500) for discharging materials is installed at the bottom of the screening box (100), a screening disc (510) for screening is slidably connected to the inner wall of the discharge pipe (500), a plurality of second screening holes (511) for materials to pass through are opened on the outer wall of the screening disc (510), and a retractable assembly for adjusting the aperture of the second screening holes (511) is installed in the screening disc (510); A conveying assembly for conveying gas to the regulating assembly and the retractable assembly is installed at one end of the screening box (100).

2. The powder metallurgy particle oscillation classification device according to claim 1, characterized in that: The control assembly comprises a third air pipe (620), a fourth air pipe (630) and a negative electrode (640); one side of the inner wall of the screening box (100) is fixedly connected to the control box (600); the third air pipe (620) is fixedly connected to the inner wall of the control box (600); the fourth air pipe (630) is fixedly connected to the middle position of the outer wall of the third air pipe (620); the inner wall of the fourth air pipe (630) is slidably connected to the sixth piston plate (631); the diameter of the middle part of the inner wall of the fourth air pipe (630) is smaller than that of the inner wall of the two ends. The fourth air pipe (630) has a wall diameter, and a plurality of penetrating air intake holes (633) are provided in the middle of the inner wall. The negative electrode (640) is fixedly connected to the side of the control box (600) away from the fourth air pipe (630). A retractable conductive sleeve (642) is installed at one end of the negative electrode (640), and a positive electrode (641) is installed at the other end of the conductive sleeve (642). A fifth connecting rod (632) for connection is installed on the wall opposite to the sixth piston plate (631) and the positive electrode (641).

3. The powder metallurgy particle oscillation classification device according to claim 2, characterized in that: The control assembly further comprises a second air pipe (610), which is installed on a side of the control box (600) close to the third air pipe (620), the inner wall of the second air pipe (610) is slidably connected to a fourth piston plate (611), the bottom end of the fourth piston plate (611) is installed with an L-shaped connecting rod (612), the L-shaped connecting rod (612) is slidably connected to the inner wall of the third air pipe (620), both ends of the third air pipe (620) are slidably connected to the fifth piston plate (621), and the inner wall of the third air pipe (620) is installed with a connecting pipe (622) connected to the fourth air pipe (630), the tail end of the L-shaped connecting rod (612) is installed with a mounting rod (623), and both ends of the mounting rod (623) are installed with an extrusion disk (624) for extrusion.

4. The powder metallurgy particle oscillation classification device according to claim 3, characterized in that: The inner wall of the second air pipe (610) is connected to a fourth connecting pipe (722), the other end of the fourth connecting pipe (722) is installed at the axial position of the inner wall of the crushing roller (420), the outer wall of the crushing roller (420) is provided with a second air cavity (421), the second air cavity (421) is provided with a through groove (422) connected to the inner wall of the fourth connecting pipe (722) at one end close to the fourth connecting pipe (722), the inner wall of the second air cavity (421) is slidably connected to a first piston plate (423), the first piston plate (423) is installed with a rotating seat (424) at one end away from the fourth connecting pipe (722), and the inner wall of the rotating seat (424) is rotatably connected to a crushing ball (425) for crushing.

5. The powder metallurgy particle oscillation classification device according to claim 4, characterized in that: The driving assembly comprises a driving motor (130), a connecting shaft (132) and a mounting shaft (430), wherein the driving motor (130) is mounted on one end of the screening box (100), a transmission shaft (131) is mounted on the output end of the driving motor (130), one end of the connecting shaft (132) is mounted on one end of the transmission shaft (131), the screening barrel (150) is mounted on the outer wall of the connecting shaft (132), the mounting shaft (430) is rotatably connected to one end of the partition plate (140) and fixedly connected to the inner wall of the rotating disk (400), and a first connecting rod (434) for driving the mounting shaft (430) to rotate is mounted on the inner wall of the connecting shaft (132).

6. The powder metallurgy particle oscillation classification device according to claim 5, characterized in that: The other end of the first connecting rod (434) is fixedly connected to a transmission disc (435) at an axial position. The first connecting rod (434) and the transmission disc (435) are both rotatably connected to the inner wall of the connecting shaft (132). A transmission ring (133) is installed on the inner wall of the connecting shaft (132) on one side of the transmission disc (435). A second transmission block (436) is slidably connected to the inner wall of the transmission disc (435). A first transmission block (134) is installed on the side of the transmission ring (133) close to the transmission disc (435). The cross-sections of the first transmission block (134) and the second transmission block (436) are semicircular at one end and rectangular at the other end and are in opposite directions.

7. The powder metallurgy particle oscillation classification device according to claim 4, characterized in that: The adjustment assembly includes a first air pipe (440), a sliding sleeve (450) and an adjustment plate (460), wherein the first air pipe (440) is fixedly connected to the inner wall of the support plate (410), the sliding sleeve (450) is slidably connected to the bottom of the inner wall of the first air pipe (440), the inner wall of the sliding sleeve (450) is slidably connected to the second piston plate (451), the adjustment plate (460) is slidably connected to the top position of the inner wall of the first air pipe (440), a fourth connecting rod (443) is fixedly connected to the opposite wall surfaces of the sliding sleeve (450) and the adjustment plate (460), the top of the adjustment plate (460) is fixedly connected to the second connecting rod (441), and the other end of the second connecting rod (441) is mounted on the outer wall of the crushing roller (420).

8. The powder metallurgy particle oscillation classification device according to claim 1, characterized in that: A second connecting pipe (712) is installed at the bottom end of the screening plate (510), a third air cavity (513) connected to the second connecting pipe (712) is opened on the inner wall of the screening plate (510), a plurality of fourth air cavities (514) connected to the third air cavity (513) are opened on the inner wall of the screening plate (510), a mounting shaft (430) is slidably connected to the inner wall of the fourth air cavity (514), an elastic ring (540) is installed on the inner wall of the second screening hole (511), a plurality of lifting ears (541) are fixedly connected to the middle of the outer wall of the elastic ring (540), a lifting rope (531) is fixedly connected to the outer wall of the third piston plate (530), and the lifting rope (531) passes through the lifting ear (541).

9. The powder metallurgy particle oscillation classification device according to claim 8, characterized in that: The conveying assembly comprises an air pump (700), a first connector (710) and a second connector (720), wherein the air pump (700) is mounted on one end of the screening box (100), the first connector (710) is mounted on the outer wall of the screening box (100) and is located at the bottom of the air pump (700), a first connecting pipe (711) is connected between the air pump (700) and the top of the first connector (710), the second connecting pipe (712) is mounted on one side of the first connector (710), the second connector (720) is mounted on the axis of the partition plate (140) close to the control box (600), a third connecting pipe (721) is connected between the first connector (710) and the second connector (720), and a first air cavity (141) connected to the first air pipe (440) is opened on the inner wall of the partition plate (140), and the other end of the first air cavity (141) is connected to the second connector (720).

10. The powder metallurgy particle oscillation classification device according to claim 1, characterized in that: A crossbeam (210) for enhancing stability is installed on the wall surface opposite to the support frame (200), a side plate (222) is installed in the middle of the top of the crossbeam (210), and the collection box (220) is rotatably connected between the two side plates (222). A weighing structure for weighing materials is installed in the collection box (220), and the weighing structure is electrically connected to the driving motor (130) and the air pump (700). A servo motor (221) for driving the collection box (220) to rotate is installed on one side of the side plate (222), and the servo motor (221) is electrically connected to the weighing structure. A box door (225) for unloading materials is rotatably connected to one side of the collection box (220).

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