CN220900514U

CN220900514U - Powder screening machine capable of avoiding blockage

Info

Publication number: CN220900514U
Application number: CN202322108910.9U
Authority: CN
Inventors: 吴勇本; 徐志贤; 常唐柏
Original assignee: Jiangsu Dongtai Fengfeng Tungsten & Molybdenum Material Co ltd
Current assignee: Jiangsu Dongtai Fengfeng Tungsten & Molybdenum Material Co ltd
Priority date: 2023-08-07
Filing date: 2023-08-07
Publication date: 2024-05-07
Anticipated expiration: 2033-08-07

Abstract

The utility model discloses a powder screening machine capable of avoiding blockage, which comprises a base, a screening box, a screening mechanism and a crushing mechanism, wherein the screening mechanism comprises a screening plate, a first buffer plate, a second buffer plate, a telescopic column, a toothed plate, a ratchet gear, a first rotating shaft and a collecting mechanism.

Description

Powder screening machine capable of avoiding blockage

Technical Field

The utility model relates to the technical field of molybdenum powder production, in particular to a powder sieving machine capable of avoiding blockage.

Background

The metal molybdenum has excellent physical and chemical properties such as high melting point, high wear resistance, good heat and electric conductivity, low expansion coefficient and the like, and has wide application in industrial production in electronic, electric light source, metallurgy, metal processing industry and the like. The molybdenum powder is a material for preparing various molybdenum products, under most using conditions, molybdenum and molybdenum powder are required to have higher purity in application, and the traditional molybdenum powder preparation process uses ammonium molybdate as a raw material, generates molybdenum dioxide through primary low-temperature oxygen reduction, carries out secondary high-temperature hydrogen reduction after screening, and then carries out screening and mixing to obtain finished molybdenum powder.

However, the existing partial screening mode in the process of screening the molybdenum powder still uses a manual vibration screen plate of a worker to screen, the screening efficiency is low, the production efficiency of the molybdenum powder is easy to reduce, and the labor intensity of the worker is high.

Disclosure of utility model

The utility model aims to provide a powder screening machine capable of avoiding blockage, so as to solve the problems in the background technology.

In order to solve the technical problems, the utility model provides the following technical scheme: the utility model provides a can avoid screening machine of jam, includes base, screening case, screening mechanism and broken mechanism, screening case slides and locates on the side wall body of base upper end, screening mechanism drives screening case vibrations, sieves molybdenum powder, broken mechanism breaks molybdenum powder, screening mechanism includes screening board, buffer board one, buffer board two, telescopic column, pinion rack, ratchet wheel, pivot one and collection mechanism, horizontal sliding connection has the screening board on the inner wall of screening case, fixedly connected with buffer board one on the lower end wall body of screening case, buffer board one's below is equipped with buffer board two, buffer board two's lower extreme fixedly connected with telescopic column, one side fixedly connected with pinion rack of telescopic column upper end, the pinion rack meshing is connected with ratchet wheel, rotation is connected with pivot one on the base, pivot one is through drive mechanism and ratchet wheel looks, pivot one rotates and drives ratchet wheel and rotate, collection mechanism collects the molybdenum powder that the screen out.

In a preferred embodiment: the transmission mechanism comprises a first bevel gear, a second rotating shaft, a rotating drum, a limiting groove, a first limiting post, a connecting plate and a second limiting post, wherein the first bevel gear is fixedly connected to the outer wall of the first rotating shaft, the second bevel gear is connected to the first bevel gear in a meshed mode, the second rotating shaft is fixedly connected to the inner wall of the second bevel gear, the rotating drum is fixedly connected to the outer wall of the second rotating shaft, the second rotating shaft is rotationally connected with the base, the limiting groove is formed in the rotating drum, the first limiting post is slidably arranged in the limiting groove, one end of the first limiting post is rotationally connected with the connecting plate, the second limiting post is rotationally connected with the base, and one end of the ratchet gear is connected with the second limiting post.

In a preferred embodiment: the lower extreme of screening case is fixed with spacing frame, in the stopper was located in the upper end slip of flexible post, buffer board two's lower extreme fixedly connected with spring one, spring one cover is located on the flexible post outer wall, the lower extreme and the spacing frame fixed connection of spring one.

In a preferred embodiment: the collecting mechanism comprises a discharge hole, a guide plate, a collecting box and a collecting groove, wherein the discharge hole is formed in the lower end of the screening box, the collecting box is fixedly arranged at the upper end of the base, the guide plate is fixedly connected to the upper end of the collecting box, and the collecting groove is slidably connected in the collecting box.

In a preferred embodiment: the crushing mechanism comprises crushing rollers, sliding grooves, baffles and springs II, wherein the two crushing rollers are symmetrically distributed in the inner rotation mode of the screening box, a plurality of sliding grooves are formed in one side wall body of the screening box, the baffles are slidably connected in the sliding grooves, and the springs II are fixedly arranged between the baffles and the inner walls of the sliding grooves.

In a preferred embodiment: the screening case upper end is equipped with the feed inlet, be equipped with the spring III between screening case's upper end and the base, one side sliding connection of screening board has the swash plate, swash plate and screening case inner wall fixed connection, base one end fixedly connected with motor, motor one end output shaft with one of them crushing roller fixed connection, two equal fixedly connected with sprocket on the outer wall of crushing roller and pivot one, a plurality of the sprocket passes through chain drive connection.

Compared with the prior art, the utility model has the following beneficial effects:

According to the utility model, the screening box vibrates to drive the screening plate to vibrate, so that molybdenum powder meeting the requirements in the screening box is screened out through the screening plate, the molybdenum powder falls into the collecting tank to be uniformly collected under the guide effect of the guide plate through the discharge port, the screening plate is not required to vibrate manually by a worker in the molybdenum powder screening process through the arrangement of the screening mechanism, the screening efficiency is high, the production efficiency of the molybdenum powder is improved, the labor intensity of the worker is greatly reduced, the shielding effect can be achieved when the screening box vibrates up and down through the arrangement of the sliding groove, the baffle plate and the spring II, the problem that molybdenum powder in the screening box flies out due to the opening caused by the up-and-down vibration of the screening box, and the waste of the molybdenum powder is caused is solved, the sealing performance of the screening box is greatly increased through the arrangement of the baffle plate, and the uniform collection of the screened molybdenum powder is facilitated by the worker through the arrangement of the collecting mechanism.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic view of the overall structure of the present utility model;

FIG. 2 is a schematic overall cross-sectional view of the present utility model;

FIG. 3 is an enlarged schematic view of the structure of FIG. 2A in accordance with the present utility model;

In the figure: 1. a base; 2. a screening box; 3. a screening plate; 4. a buffer plate I; 5. a buffer plate II; 6. a telescopic column; 7. a toothed plate; 8. a ratchet gear; 9. a first rotating shaft; 10. bevel gears I; 11. a second rotating shaft; 12. a rotating drum; 13. a limit groove; 14. a first limit column; 15. a connecting plate; 16. a second limit column; 17. a limit frame; 18. a discharge port; 19. a collection box; 20. a collection tank; 21. a crushing roller; 22. a chute; 23. a baffle; 24. a motor; 25. and (3) a chain.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, the present utility model provides the following technical solutions: the utility model provides a can avoid screening machine of jam, includes base 1, screening case 2, screening mechanism and broken mechanism, screening case 2 slides and locates on the lateral wall body of base 1 upper end, screening mechanism drives screening case 2 vibrations, sieves molybdenum powder, broken mechanism breaks molybdenum powder, screening mechanism includes screening board 3, buffer board one 4, buffer board two 5, flexible post 6, pinion rack 7, ratchet 8, pivot one 9 and collection mechanism, horizontal sliding connection has screening board 3 on the inner wall of screening case 2, fixedly connected with buffer board one 4 on the lower end wall body of screening case 2, the below of buffer board one 4 is equipped with buffer board two 5, the lower extreme fixedly connected with flexible post 6 of buffer board two 5, one side fixedly connected with pinion rack 7 of flexible post 6 upper end, pinion rack 7 meshing is connected with ratchet 8, rotate on base 1 and be connected with pivot one 9, ratchet 9 rotates 9 through drive mechanism and gear 8 mutually, ratchet 8 drives ratchet and rotates the pivot that the mechanism is separated to collect molybdenum powder.

During the use, the molybdenum powder that will sieve drops into screening case 2 from the feed inlet, starter motor 24 passes through crushing mechanism and breaks the molybdenum powder of caking, simultaneously motor 24 starts and drives the rotation of pivot one 9 through sprocket and chain 25, pivot one 9 rotates and drives bevel gear one 10 and rotate, and then drive bevel gear two and rotate, thereby drive rotary drum 12 and rotate, rotary drum 12 rotates and makes spacing post one 14 slide in spacing groove 13, and then drive ratchet wheel 8 through connecting plate 15 and reciprocate, thereby can drive pinion rack 7 and reciprocate, and then make impact buffer plate two 5 that buffer plate one 4 is incessant through the flexible of flexible post 6, screening case 2 takes place vibrations, and then the molybdenum powder that accords with the demand in the screening case 2 is sieved out through screening plate 3, drop to collecting vat 20 under the guide effect of baffle through discharge gate 18 and unified the collection, through setting up of screening mechanism, can need not the manual vibrations of staff to sieve the in-process of molybdenum powder screening, screening efficiency is higher, and greatly reduced staff's intensity of labour to the sieve.

The transmission mechanism comprises a first bevel gear 10, a second bevel gear 11, a rotary drum 12, a limiting groove 13, a first limiting post 14, a connecting plate 15 and a second limiting post 16, wherein the first bevel gear 10 is fixedly connected to the outer wall of the first rotary shaft 9, the second bevel gear 10 is connected to the first bevel gear in a meshed mode, the second rotary shaft 11 is fixedly connected to the inner wall of the second bevel gear, the rotary drum 12 is fixedly connected to the outer wall of the second rotary shaft 11, the second rotary shaft 11 is rotationally connected with the base 1, the limiting groove 13 is formed in the rotary drum 12, the first limiting post 14 is slidably arranged in the limiting groove 13, one end of the first limiting post 14 is rotationally connected with the connecting plate 15, the second limiting post 16 is rotationally connected with the base 1, and one end of the ratchet gear 8 is connected with the second limiting post 16.

The lower extreme of screening case 2 is fixed and is equipped with spacing frame 17, the upper end of flexible post 6 slides and locates in the stopper, the lower extreme fixedly connected with spring one of buffer board two 5, spring one cover is located on flexible post 6 outer wall, the lower extreme and the spacing frame 17 fixed connection of spring one, through the setting of limiting plate, can play certain limiting displacement to the slip of flexible post 6.

The collecting mechanism comprises a discharge hole 18, a guide plate, a collecting box 19 and a collecting groove 20, the discharge hole 18 is formed in the lower end of the screening box 2, the collecting box 19 is fixedly arranged at the upper end of the base 1, the guide plate is fixedly connected to the upper end of the collecting box 19, the collecting groove 20 is slidably connected to the collecting box 19, and the collecting mechanism is convenient for workers to uniformly collect screened molybdenum powder.

The crushing mechanism comprises crushing rollers 21, sliding grooves 22, baffle plates 23 and springs II, wherein the two crushing rollers 21 are symmetrically distributed in a rotating manner, a plurality of sliding grooves 22 are formed in one side wall body of the screening box 2, the baffle plates 23 are slidably connected in the sliding grooves 22, the springs II are fixedly arranged between the baffle plates 23 and the inner walls of the sliding grooves 22, when the crushing mechanism is used, the two crushing rollers 21 start to rotate along with the starting of a motor 24 through the arrangement of chain wheels and chains 25, further the molybdenum powder entering the screening box 2 is subjected to refining crushing treatment, the follow-up screening work of the molybdenum powder is facilitated, the screening box 2 can be prevented from being blocked by the arrangement of the sliding grooves 22, the baffle plates 23 and the springs II, the problem that molybdenum powder flies out in the screening box 2 due to the fact that openings are formed in the vertical vibration of the screening box 2 is avoided, and the waste of the molybdenum powder is greatly increased through the arrangement of the baffle plates 23 is solved.

The screening case 2 upper end is equipped with the feed inlet, be equipped with the spring III between screening case 2's upper end and the base 1, one side sliding connection of screening board 3 has the swash plate, swash plate and screening case 2 inner wall fixed connection, base 1 one end fixedly connected with motor 24, motor 24 one end output shaft and one of them crushing roller 21 fixed connection, two all fixedly connected with sprocket on the outer wall of crushing roller 21 and pivot one 9, a plurality of sprocket passes through the chain 25 transmission and connects.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a can avoid screening machine of jam, includes base (1), screening case (2), screening mechanism and broken mechanism, on a lateral wall body of base (1) upper end is located in the slip of screening case (2), screening mechanism drives screening case (2) vibrations, sieves molybdenum powder, broken mechanism carries out breakage to molybdenum powder, its characterized in that: screening mechanism includes screening board (3), buffer board one (4), buffer board two (5), flexible post (6), pinion rack (7), ratchet wheel (8), pivot one (9) and collection mechanism, horizontal sliding connection has screening board (3) on the inner wall of screening case (2), fixedly connected with buffer board one (4) on the lower end wall body of screening case (2), the below of buffer board one (4) is equipped with buffer board two (5), the lower extreme fixedly connected with flexible post (6) of buffer board two (5), one side fixedly connected with pinion rack (7) of flexible post (6) upper end, pinion rack (7) meshing is connected with ratchet wheel (8), it is connected with pivot one (9) to rotate on base (1), pivot one (9) are through drive mechanism and ratchet wheel (8) looks, pivot one (9) rotate and drive ratchet wheel (8) rotate, collection mechanism collects the molybdenum powder that the screen out.

2. A clogging-avoiding powder screening machine as defined in claim 1, wherein: the transmission mechanism comprises a first bevel gear (10), a second rotating shaft (11), a rotating drum (12), a limiting groove (13), a first limiting post (14), a connecting plate (15) and a second limiting post (16), wherein the first bevel gear (10) is fixedly connected to the outer wall of the first rotating shaft (9), the second bevel gear (10) is connected to the second bevel gear in a meshed mode, the second rotating shaft (11) is fixedly connected to the inner wall of the second bevel gear, the rotating drum (12) is fixedly connected to the outer wall of the second rotating shaft (11), the second rotating shaft (11) is rotationally connected with the base (1), the limiting groove (13) is formed in the rotating drum (12), the first limiting post (14) is slidably arranged in the limiting groove (13), the connecting plate (15) is rotationally connected with the second limiting post (16), the second limiting post (16) is connected with the base (1), and one end of the ratchet gear (8) is connected with the second limiting post (16).

3. A clogging-avoiding powder screening machine as defined in claim 2, wherein: the screening box is characterized in that a limiting frame (17) is fixedly arranged at the lower end of the screening box (2), the upper end of the telescopic column (6) is slidably arranged in the limiting block, a first spring is fixedly connected to the lower end of the second buffer plate (5), the first spring is sleeved on the outer wall of the telescopic column (6), and the lower end of the first spring is fixedly connected with the limiting frame (17).

4. A clogging-avoiding powder screening machine as defined in claim 2, wherein: the collecting mechanism comprises a discharge hole (18), a guide plate, a collecting box (19) and a collecting groove (20), wherein the discharge hole (18) is formed in the lower end of the screening box (2), the collecting box (19) is fixedly arranged at the upper end of the base (1), the guide plate is fixedly connected to the upper end of the collecting box (19), and the collecting groove (20) is slidably connected to the collecting box (19).

5. A clogging avoiding powder sifter according to claim 4, wherein: the crushing mechanism comprises a crushing roller (21), a sliding groove (22), a baffle (23) and a second spring, wherein the two crushing rollers (21) which are symmetrically distributed are connected with each other in an inner rotation mode of the screening box (2), a plurality of sliding grooves (22) are formed in one side wall body of the screening box (2), the baffle (23) is connected in the sliding grooves (22) in a sliding mode, and the second spring is fixedly arranged between the baffle (23) and the inner wall of the sliding groove (22).

6. A clogging avoiding powder sifter according to claim 5, wherein: the screening case (2) upper end is equipped with the feed inlet, be equipped with the spring III between the upper end of screening case (2) and base (1), one side sliding connection of screening board (3) has the swash plate, swash plate and screening case (2) inner wall fixed connection, base (1) one end fixedly connected with motor (24), motor (24) one end output shaft and one of them crushing roller (21) fixed connection, two all fixedly connected with sprocket on the outer wall of crushing roller (21) and pivot one (9), a plurality of sprocket pass through chain (25) transmission and are connected.