CN214600238U

CN214600238U - Coal screening machine

Info

Publication number: CN214600238U
Application number: CN202120639624.3U
Authority: CN
Inventors: 蔡晓煜; 洪英豪; 翁武强; 许立宇
Original assignee: Huaneng Fujian Zhangzhou Energy Co ltd
Current assignee: Huaneng Fujian Zhangzhou Energy Co ltd
Priority date: 2021-03-30
Filing date: 2021-03-30
Publication date: 2021-11-05
Anticipated expiration: 2031-03-30

Abstract

The utility model relates to a coal screening machine, which belongs to the technical field of coal screening devices. The utility model comprises a support frame. The support frame includes a lower support frame and an upper support frame. A cylindrical filter screen is arranged between the support frames. The two ends of the cylindrical filter screen are respectively provided with a drive device and a fixed frame fixed on the support frame. The end of the free end of the transmission main shaft is fixedly sleeved with a driving gear, the fixed frame is provided with a transmission gear that meshes with the driving gear, and the transmission main shaft is also movably sleeved with a transmission gear. The driven gears of the gears meshing with each other. The utility model has the advantages of simple transmission structure and self-pulverizing function, which can directly pulverize coarse coal and filter and screen it.

Description

Coal screening machine

Technical Field

The utility model relates to a coal screening machine belongs to screening coal technical field.

Background

With the increase of resource management and the substantial increase of resource cost in China, the coal industry has entered a rapid development period, and the usage amount of coal in China is high in recent years, so that many coal yards are developed accordingly. Along with the improvement of living standard, the requirement of people to civil coal is also rising at present, the effect of burning can be influenced to some coal cinder granule inhomogeneously, consequently need screen the coal cinder, but current coal screening machine still has certain defect, such as function singleness, work efficiency low grade, current coal screening machine still need transport these large granule coal cinder of screening out to corresponding region and carry out the regrinding after screening great granule, current coal screening machine does not have automatic kibbling function promptly, this has just caused whole working process to have increased a step, work efficiency straight line reduces, current coal screening machine itself structure is comparatively complicated simultaneously, the cost is higher.

In view of the above, the prior art is obviously inconvenient and disadvantageous in practical use, and needs to be improved.

SUMMERY OF THE UTILITY MODEL

In order to overcome the shortcoming among the above-mentioned prior art, the utility model discloses a coal screening machine, its transmission simple structure has from the shredding function, can directly smash the coarse coal and filter the screening.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a coal screening machine comprises a supporting frame and a cylindrical filter screen arranged in the supporting frame, wherein a driving device and a fixing frame which are fixed on the supporting frame are respectively arranged at two ends of the cylindrical filter screen, the output end of the driving device is connected with a transmission main shaft in a transmission manner, the free end of the transmission main shaft sequentially and movably penetrates through the cylindrical filter screen and the fixing frame and then extends outwards, and a transmission assembly is arranged at one end of the transmission main shaft penetrating through the fixing frame; a rotary sleeve rotatably sleeved on the transmission main shaft is arranged inside the barrel type filter screen, and one end of the rotary sleeve is sequentially movably connected with the transmission assembly after penetrating through the barrel type filter screen and the fixed frame; one end of the cylindrical filter screen, which is close to the driving device, is communicated with a feed hopper fixed on the support frame, a plurality of knife boards are also arranged inside the cylindrical filter screen, each knife board is fixedly connected with the rotary sleeve through a knife rest, and each knife board is gradually arranged close to the inner wall of the cylindrical filter screen from one end close to the driving device to one end close to the fixed frame; the transmission main shaft is fixedly connected with the inner wall of the barrel type filter screen through a first transmission frame.

Furthermore, the cylinder type filter screen is gradually and downwards inclined from one end close to the driving device to one end close to the fixing frame.

Further, the transmission assembly comprises a fixing frame which is sequentially close to the fixing frame, a driving gear and a rotating sleeve which are arranged on the transmission main shaft are arranged on the driving gear and the rotating sleeve which are arranged on the transmission main shaft, a transmission gear which is meshed with the driving gear and the driven gear and is driven by the driving gear and the driven gear is arranged on the fixing frame, and the driven gear is fixedly connected with the rotating sleeve.

Furthermore, braced frame includes lower carriage and upper bracket, lower carriage and upper bracket pass through link fixed connection, the cylinder filter screen sets up between lower carriage and the upper bracket.

Furthermore, a connecting bearing is fixedly sleeved outside the rotary sleeve, and the outer ring of the connecting bearing is fixedly connected with the inner wall of the cylindrical filter screen through a second transmission frame.

Furthermore, a speed reducer is connected between the driving device and the transmission main shaft in a transmission manner.

Further, the tool rest is fixedly connected with the cutting board through a fixing bolt.

Furthermore, feeder hopper and mount all are fixed to be set up on the upper bracket frame.

Compared with the prior art the utility model discloses there are following characteristics and beneficial effect:

the cutter plate is arranged in the cylindrical filter screen and is matched with the rotation of the cylindrical filter screen, so that large coal blocks can be effectively crushed, the size of coal block particles is more uniform, the coal blocks can be progressively crushed layer by the arrangement mode that the cutter plate is arranged in the cylindrical filter screen in a loose-first and tight-later manner, and the coal blocks cannot be crushed by being scraped by the cutter plate due to overlarge coal blocks are avoided; through the matching of the driving gear, the transmission gear and the driven gear, the cylindrical filter screen and the cutting board can be driven to rotate through one driving device, the whole structure is very simple, the transmission effect is good, meanwhile, the rotating directions of the cylindrical filter screen and the cutting board are opposite, the coal briquette can be more efficiently crushed, the output torque of the driving device can be increased through the arrangement of the speed reducer, the rotating torque of the transmission main shaft is further improved, and the coal briquette is conveniently crushed; the cylinder filter screen is obliquely arranged, the coal briquette can move towards the cutter plate end under the action of gravity, manual propulsion is not needed, convenience and labor saving are realized, and the working efficiency is high.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the inside of a drum type filter net;

fig. 3 is a partially enlarged schematic view at a of fig. 2.

Wherein the reference numerals are: 10. a support frame; 1. a lower support frame; 11. a connecting frame; 12. an upper support frame; 13. a fixed mount; 131. a transmission gear; 2. a drive device; 21. a speed reducer; 22. a transmission main shaft; 221. a first transmission frame; 222. a driving gear; 3. a feed hopper; 4. a cylindrical filter screen; 5. rotating the sleeve; 51. a tool holder; 511. fixing the bolt; 52. a cutting board; 53. a driven gear; 6. connecting a bearing; 61. and a second transmission frame.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

As shown in fig. 1 to 3, the coal screening machine of the embodiment includes a supporting frame 10, the supporting frame 10 includes a lower supporting frame 1 and an upper supporting frame 12, the lower supporting frame 1 and the upper supporting frame 12 are fixedly connected through a connecting frame 11, a cylindrical filter screen 4 is disposed between the lower supporting frame 1 and the upper supporting frame 12, two ends of the cylindrical filter screen 4 are respectively provided with a driving device 2 and a fixing frame 13 fixed on the supporting frame 10, an output end of the driving device 2 is connected with a transmission main shaft 22 in a transmission manner, a free end of the transmission main shaft 22 sequentially and movably penetrates through the cylindrical filter screen 4 and the fixing frame 13 and then extends outwards, an end of the free end of the transmission main shaft 22 is fixedly sleeved with a driving gear 222, the fixing frame 13 is provided with a transmission gear 131 engaged with the driving gear 222, and the transmission main shaft 22 is further movably sleeved with a driven gear 53 engaged with the transmission gear 131; a rotary sleeve 5 movably sleeved outside the transmission main shaft 22 is further arranged inside the cylindrical filter screen 4, and one end of the rotary sleeve 5 is fixedly connected with the driven gear 53 after sequentially and movably penetrating through the cylindrical filter screen 4 and the fixed frame 13; one end of the cylindrical filter screen 4 close to the driving device 2 is communicated with a feed hopper 3 fixed on the support frame 10, a plurality of knife boards 52 are also arranged inside the cylindrical filter screen 4, each knife board 52 is fixedly connected with the rotary sleeve 5 through a knife rest 51, and each knife board 52 is gradually arranged close to the inner wall of the cylindrical filter screen 4 from one end close to the driving device 2 to one end close to the fixed frame 13; the transmission main shaft 22 is fixedly connected with the inner wall of the barrel type filter screen 4 through a first transmission frame 221.

Further, cylinder filter screen 4 inclines downwards from the one end that is close to drive arrangement 2 to the one end that is close to mount 13 gradually and sets up, and the slope setting can let the coal cinder move to cylinder filter screen 4's lower extreme under the effect of gravity, conveniently smashes the coal cinder.

Further, the rotating sleeve 5 is externally fixed and sleeved with the connecting bearing 6, and the outer ring of the connecting bearing 6 is fixedly connected with the inner wall of the barrel type filter screen 4 through the second transmission frame 61, so that the stability of the whole device is improved.

Furthermore, a speed reducer 21 is connected between the driving device 2 and the transmission main shaft 22 in a transmission manner, so that speed and moment are reduced, the crushing force of the cutter plate 52 is increased, and the coal blocks are conveniently crushed.

Further, the tool holder 51 is fixedly connected to the tool plate 52 by a fixing bolt 511.

Further, the feed hopper 3 and the fixing frame 13 are both fixedly arranged on the upper support frame 12.

The utility model discloses a theory of operation: coal blocks are added from an inlet of the feed hopper 3, the coal blocks roll into the cylindrical filter screen 4 under the action of gravity, the driving device 2 is started, the speed reducer 21 reduces the speed and increases the torque to drive the transmission main shaft 22 to rotate, the transmission main shaft 22 drives the cylindrical filter screen 4 to rotate under the fixed action of the first transmission frame 221, meanwhile, the driving gear 222 connected with the end part of the transmission main shaft 22 also rotates along with the rotation of the transmission main shaft 22, so that the driven gear 53 is driven to rotate through the meshing transmission action, the rotary sleeve 5 is fixedly connected with the driven gear 53, the rotary sleeve 5 drives the knife board 52 to rotate under the action of the driven gear 53, the coal blocks are extruded and crushed by the knife board 52 under the rotation of the knife board 52 and the cylindrical filter screen 4, and are separated from meshes of the cylindrical filter screen 4.

It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Claims

1. A coal screening machine, characterized in that: comprising a support frame (10) and a cylindrical filter screen (4) arranged in the support frame (10), the two ends of the cylindrical filter screen (4) are respectively provided with The drive device (2) and the fixing frame (13) are both fixed on the support frame (10), the output end of the drive device (2) is drivingly connected with a transmission spindle (22), and the transmission spindle (22) is free The ends move through the cylindrical filter screen (4) and the fixing frame (13) in turn and extend outward, and a transmission component is provided at the end passing through the fixing frame (13); the cylindrical filter screen (4) Inside is provided with a rotating sleeve (5) that is rotatably sleeved on the transmission main shaft (22), and one end of the rotating sleeve (5) moves through the cylindrical filter screen (4) and the fixing frame (13) in turn. ) and then drive connected with the transmission assembly;

A feeding hopper (3) fixed on the support frame (10) is communicated with one end of the cylindrical filter screen (4) close to the driving device (2), and the inside of the cylindrical filter screen (4) is further A plurality of knife plates (52) are provided, each of the knife plates (52) is fixedly connected with the rotating sleeve (5) through a knife rest (51), and each of the knife plates (52) is self-close to the driving device One end of (2) is gradually set close to the inner wall of the cylindrical filter screen (4) to the end close to the fixing frame (13); the transmission spindle (22) communicates with the cylindrical filter through the first transmission frame (221) The inner wall of the net (4) is fixedly connected.

2 . The coal sifter according to claim 1 , wherein the cylindrical filter screen ( 4 ) moves from an end close to the driving device ( 2 ) to an end close to the fixing frame ( 13 ). 3 . Incline the setting gradually downwards.

3. A coal sifter according to claim 1, characterized in that: the transmission assembly comprises a driving gear which is sequentially arranged close to the fixing frame (13) and is fixedly sleeved on the transmission main shaft (22). (222) and a driven gear (53) rotatably sleeved on the transmission main shaft (22), the fixed frame (13) is provided with the driving gear (222) and the driven gear (53) respectively The transmission gear (131) of the meshing transmission is engaged, and the driven gear (53) is fixedly connected with the rotating sleeve (5).

4. A coal screen machine according to claim 1, characterized in that: the support frame (10) comprises a lower support frame (1) and an upper support frame (12), the lower support frame (1) and The upper support frame (12) is fixedly connected through the connection frame (11), and the cylindrical filter screen (4) is arranged between the lower support frame (1) and the upper support frame (12).

5. A coal sifter according to claim 1, characterized in that: the rotating sleeve (5) is fixedly sleeved with a connecting bearing (6), and the outer ring of the connecting bearing (6) passes through The second transmission frame (61) is fixedly connected with the inner wall of the cylindrical filter screen (4).

6 . The coal sifter according to claim 1 , wherein a reducer ( 21 ) is drivingly connected between the driving device ( 2 ) and the transmission main shaft ( 22 ). 7 .

7. The coal sifter according to claim 1, characterized in that: the blade holder (51) is fixedly connected to the blade plate (52) through fixing bolts (511).

8 . The coal sifter according to claim 3 , wherein the feeding hopper ( 3 ) and the fixing frame ( 13 ) are fixedly arranged on the upper support frame ( 12 ). 9 .