CN216368238U

CN216368238U - Replaceable grinding roller head device for boiler coal mill equipment

Info

Publication number: CN216368238U
Application number: CN202121876686.2U
Authority: CN
Inventors: 谢昌林; 刘成; 许海洋; 杨杰
Original assignee: Jiangsu Xinchromium Steel Wear Resistant Composite Material Co ltd
Current assignee: Jiangsu Xinchromium Steel Wear Resistant Composite Material Co ltd
Priority date: 2021-08-12
Filing date: 2021-08-12
Publication date: 2022-04-26
Anticipated expiration: 2031-08-12

Abstract

The utility model discloses a replaceable grinding roller head device for boiler coal grinding equipment, which comprises a U-shaped support frame, wherein a movable shaft is arranged at the bottom end of the U-shaped support frame, a plurality of arc-shaped wear-resisting pieces are uniformly distributed on the movable shaft in a sleeved mode, and a first connecting mechanism is arranged on each of two sides of the arc-shaped wear-resisting pieces in the middle and one side of each of the rest arc-shaped wear-resisting pieces. The beneficial effects are that: through the spout that has the iron sheet and the lug that has the magnet piece, can be connected a plurality of arc wear pads and loose axle, through rotating the hand wheel, drive one of them threaded rod and rotate and remove, and set up coupling mechanism three, spacing swivel one, spacing swivel two and connecting rod, thereby can drive another threaded rod, because two sets of threaded rod screw thread opposite direction, thereby can drive two sets of extrusion sliders simultaneously and be close to the removal each other, and promote the extrusion to the epaxial arc wear pad of loose axle, make plug and slot zonulae occludens, thereby make a plurality of arc wear pads and loose axle fixed connection.

Description

Replaceable grinding roller head device for boiler coal mill equipment

Technical Field

The utility model relates to the technical field of abrasion prevention of a barrel and an abrasion prevention of a grinding roller shaft of a coal mill, in particular to a replaceable grinding roller head device for boiler coal mill equipment.

Background

During the process of grinding coal and pulverizing, the pulverized coal rotates along with the grinding roller, is thrown to the grinding roller head device and the guide device under the action of centrifugal force and pushing the continuously ground coal and pulverized coal, then rebounds to fall into the grinding area for re-grinding, and the qualified pulverized coal is taken out of the mill by the hot primary air through the separator, enters the hot primary air pipe, directly enters the hearth through the burner and participates in combustion. The difference of coal quality and improper material selection, and the impact abrasion of coal, coal dust or foreign matters on the grinding roller head device and the guide device lining plate during operation is a great test.

The existing grinding roller head device is of an integrally formed structure, is difficult to install and disassemble, and has poor abrasion effect when the surface of the grinding roller head device is seriously abraded, the grinding roller head device can only be completely replaced, the cost is increased, and meanwhile, the overhaul time of a user is increased and the production efficiency is reduced.

An effective solution to the problems in the related art has not been proposed yet.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a replaceable grinding roller head device for a coal mill of a boiler, which overcomes the above-mentioned problems of the related art.

Therefore, the utility model adopts the following specific technical scheme:

a replaceable grinding roller head device for boiler coal mill equipment comprises a U-shaped support frame, wherein a movable shaft is arranged at the bottom end of the U-shaped support frame and sleeved with a plurality of uniformly distributed arc-shaped wear-resistant pieces, a first connecting mechanism is arranged on each of two sides of the arc-shaped wear-resistant pieces in the middle and one side of each of the other arc-shaped wear-resistant pieces, a second connecting mechanism matched with the first connecting mechanism is arranged on each of the other sides of the other arc-shaped wear-resistant pieces, symmetrically arranged extrusion sliding blocks are sleeved on the movable shaft, connecting rods are arranged at the top ends of the extrusion sliding blocks, sliding rods connected with the extrusion sliding blocks are arranged in the U-shaped support frame, symmetrically arranged sliding sleeves are arranged on the sliding rods and connected with the connecting rods, outer frames matched with the sliding sleeves are wrapped outside the sliding sleeves, and a first driving wheel is arranged on one side, which is far away from each other, of the two sets of outer frames, and one side of each of the two groups of first driving wheels, which is far away from each other, is provided with a threaded rod which penetrates through the outer side of the U-shaped support frame, and the two groups of first driving wheels are connected through a third connecting mechanism.

Preferably, the first elastic telescopic rods are symmetrically arranged on the first connecting mechanism, the arc-shaped piece is arranged on one side of the first elastic telescopic rod, the second elastic telescopic rod is arranged on one side of the arc-shaped piece, and the plug is arranged on one side of the second elastic telescopic rod.

Preferably, the first connecting mechanism comprises symmetrically arranged arc-shaped connecting grooves, the arc-shaped connecting grooves are matched with the arc-shaped sheets, and the arc-shaped connecting grooves are internally provided with slots matched with the plugs.

Preferably, the surface of the movable shaft is provided with a plurality of chutes which are uniformly distributed, the bottom ends of the chutes are provided with iron sheets matched with the chutes, the inner walls of the arc-shaped wear-resistant sheets are provided with convex blocks matched with the chutes, and the inner parts of the convex blocks are provided with magnet blocks.

Preferably, the connecting mechanism III comprises symmetrically arranged telescopic round rods, the telescopic round rods are connected with the U-shaped support frame, two groups of telescopic round rods are provided with second driving wheels on the sides close to each other, the two groups of driving wheels are connected through telescopic rectangular rods, and the second driving wheels are connected with the first driving wheels through driving belts.

Preferably, one side of each of the two groups of driving wheels, which is far away from each other, is provided with a first limiting rotating ring, the telescopic round rods are respectively sleeved with a second limiting rotating ring, and the second limiting rotating rings and the first limiting rotating rings are connected through connecting rods.

Preferably, the surface threads of the two groups of threaded rods are opposite, one side of one of the threaded rods is provided with a hand wheel, and the hand wheel is sleeved with a rubber anti-slip sleeve matched with the hand wheel.

The utility model has the beneficial effects that: through the spout that has the iron sheet and the lug that has the magnet piece, can be connected a plurality of arc wear pads and loose axle, through rotating the hand wheel, drive one of them threaded rod and rotate and remove, and set up coupling mechanism three, spacing swivel one, spacing swivel two and connecting rod, thereby can drive another threaded rod, because two sets of threaded rod screw thread opposite direction, thereby can drive two sets of extrusion sliders simultaneously and be close to the removal of each other, and promote the extrusion to the epaxial arc wear pad of loose axle, make plug and slot zonulae occludens, thereby make a plurality of arc wear pads and loose axle fixed connection, convenience of customers changes the comparatively serious arc wear pad of wearing and tearing greatly, need not change complete grinding roller head, effectual saving cost.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic structural view of a replaceable grinding roller head device for a boiler coal mill installation in accordance with an embodiment of the present invention;

FIG. 2 is a schematic diagram of an internal configuration of an arcuate wear plate in a replaceable grinding roller head assembly for a coal pulverizer installation of a boiler in accordance with an embodiment of the present invention;

FIG. 3 is an enlarged schematic view of a replaceable grinding roller head assembly A for a coal pulverizer installation of a boiler in accordance with an embodiment of the present invention;

FIG. 4 is a schematic structural view of a first connection mechanism of the replaceable grinding roller head device for a coal pulverizer apparatus of a boiler according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a second connection mechanism of the replaceable grinding roller head device for a coal pulverizer apparatus of a boiler according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a third connecting mechanism in the replaceable grinding roller head device for a boiler coal grinding machine device according to an embodiment of the utility model.

In the figure:

1. a U-shaped support frame; 2. a movable shaft; 3. an arc-shaped wear-resistant sheet; 4. extruding the slide block; 5. a connecting rod; 6. a slide bar; 7. a sliding sleeve; 8. an outer frame; 9. a first transmission wheel; 10. a threaded rod; 11. an elastic telescopic rod I; 12. an arc-shaped sheet; 13. a second elastic telescopic rod; 14. a plug; 15. an arc-shaped connecting groove; 16. a slot; 17. a chute; 18. iron sheets; 19. a bump; 20. a magnet block; 21. a telescopic round bar; 22. a second driving wheel; 23. a telescopic rectangular rod; 24. a first limiting rotary ring; 25. and a second limiting rotary ring.

Detailed Description

For further explanation of the various embodiments, the drawings which form a part of the disclosure and which are incorporated in and constitute a part of this specification, illustrate embodiments and, together with the description, serve to explain the principles of operation of the embodiments, and to enable others of ordinary skill in the art to understand the various embodiments and advantages of the utility model, and, by reference to these figures, reference is made to the accompanying drawings, which are not to scale and wherein like reference numerals generally refer to like elements.

In accordance with an embodiment of the present invention, a replaceable grinding roller head apparatus for a boiler coal mill installation is provided.

The first embodiment;

as shown in fig. 1-6, the replaceable grinding roller head device for boiler coal mill equipment according to the embodiment of the present invention comprises a U-shaped support frame 1, a movable shaft 2 is disposed at the bottom end of the U-shaped support frame 1, the movable shaft 2 is sleeved with a plurality of arc-shaped wear-resistant pieces 3 which are uniformly distributed, wherein two sides of the arc-shaped wear-resistant pieces 3 in the middle portion and one sides of the rest arc-shaped wear-resistant pieces 3 are respectively provided with a first connecting mechanism, the other sides of the rest arc-shaped wear-resistant pieces 3 are respectively provided with a second connecting mechanism which is matched with the first connecting mechanism, the movable shaft 2 is sleeved with symmetrically arranged extrusion sliding blocks 4, the top ends of the extrusion sliding blocks 4 are respectively provided with a connecting rod 5, a sliding rod 6 which is connected with the U-shaped support frame 1 is disposed in the U-shaped support frame 1, the sliding rod 6 is sleeved with symmetrically arranged sliding sleeves 7, the sliding sleeves 7 are all connected with the connecting rod 5, an outer frame 8 which is matched with the sliding sleeves 7 is disposed outside of the sliding rods, two groups of driving wheels I9 are arranged on one sides, far away from each other, of the outer frames 8, threaded rods 10 penetrating to the outer side of the U-shaped support frame 1 are arranged on one sides, far away from each other, of the driving wheels I9, and the driving wheels I9 are connected through a connecting mechanism III.

Example two;

as shown in fig. 1-6, the replaceable grinding roller head device for boiler coal mill equipment according to the embodiment of the present invention comprises a U-shaped support frame 1, a movable shaft 2 is disposed at the bottom end of the U-shaped support frame 1, the movable shaft 2 is sleeved with a plurality of arc-shaped wear-resistant pieces 3 which are uniformly distributed, wherein two sides of the arc-shaped wear-resistant pieces 3 in the middle portion and one sides of the rest arc-shaped wear-resistant pieces 3 are respectively provided with a first connecting mechanism, the other sides of the rest arc-shaped wear-resistant pieces 3 are respectively provided with a second connecting mechanism which is matched with the first connecting mechanism, the movable shaft 2 is sleeved with symmetrically arranged extrusion sliding blocks 4, the top ends of the extrusion sliding blocks 4 are respectively provided with a connecting rod 5, a sliding rod 6 which is connected with the U-shaped support frame 1 is disposed in the U-shaped support frame 1, the sliding rod 6 is sleeved with symmetrically arranged sliding sleeves 7, the sliding sleeves 7 are all connected with the connecting rod 5, an outer frame 8 which is matched with the sliding sleeves 7 is disposed outside of the sliding rods, one sides of the two groups of outer frames 8, which are far away from each other, are provided with first driving wheels 9, one sides of the two groups of first driving wheels 9, which are far away from each other, are provided with threaded rods 10 penetrating to the outer side of the U-shaped support frame 1, the two groups of first driving wheels 9 are connected through a third connecting mechanism, two elastic telescopic rods 11 symmetrically arranged on the first connecting mechanism are provided with arc-shaped pieces 12, one sides of the arc-shaped pieces 12 are provided with second elastic telescopic rods 13, one sides of the second elastic telescopic rods 13 are provided with plugs 14, the first connecting mechanism comprises symmetrically arranged arc-shaped connecting grooves 15, the arc-shaped connecting grooves 15 are matched with the arc-shaped pieces 12, the arc-shaped connecting grooves 15 are internally provided with inserting grooves 16 matched with the plugs 14, and the arc-shaped wear-resistant pieces 3 at different positions are connected with each other through the first connecting mechanism and the second connecting mechanism, thereby can form the ring, avoid breaking away from of arc wear pad 3, improve the fastness between arc wear pad 3 and the loose axle 2 greatly, the surface of loose axle 2 is equipped with a plurality of evenly distributed's spout 17, the bottom of spout 17 all is equipped with rather than assorted iron sheet 18, the inner wall of arc wear pad 3 all be equipped with spout 17 assorted lug 19, lug 19's inside all is equipped with magnet piece 20, can place a plurality of arc wear pads 3 on the loose axle 2 surface, prevents it and drops, can carry out the initial connection to arc wear pad 3, and the extrusion of the extrusion slider 4 of being convenient for is fixed.

Example three;

as shown in fig. 1-6, the replaceable grinding roller head device for boiler coal mill equipment according to the embodiment of the present invention comprises a U-shaped support frame 1, a movable shaft 2 is disposed at the bottom end of the U-shaped support frame 1, the movable shaft 2 is sleeved with a plurality of arc-shaped wear-resistant pieces 3 which are uniformly distributed, wherein two sides of the arc-shaped wear-resistant pieces 3 in the middle portion and one sides of the rest arc-shaped wear-resistant pieces 3 are respectively provided with a first connecting mechanism, the other sides of the rest arc-shaped wear-resistant pieces 3 are respectively provided with a second connecting mechanism which is matched with the first connecting mechanism, the movable shaft 2 is sleeved with symmetrically arranged extrusion sliding blocks 4, the top ends of the extrusion sliding blocks 4 are respectively provided with a connecting rod 5, a sliding rod 6 which is connected with the U-shaped support frame 1 is disposed in the U-shaped support frame 1, the sliding rod 6 is sleeved with symmetrically arranged sliding sleeves 7, the sliding sleeves 7 are all connected with the connecting rod 5, an outer frame 8 which is matched with the sliding sleeves 7 is disposed outside of the sliding rods, one sides of the two groups of outer frames 8, which are far away from each other, are respectively provided with a first driving wheel 9, one sides of the two groups of first driving wheels 9, which are far away from each other, are respectively provided with a threaded rod 10 penetrating to the outer side of the U-shaped support frame 1, the two groups of first driving wheels 9 are connected through a third connecting mechanism, the third connecting mechanism comprises symmetrically arranged telescopic round rods 21, the telescopic round rods 21 are respectively connected with the U-shaped support frame 1, one sides of the two groups of telescopic round rods 21, which are close to each other, are respectively provided with a second driving wheel 22, the two groups of second driving wheels 22 are connected through a telescopic rectangular rod 23, the second driving wheels 22 and the first driving wheels 9 are connected through a driving belt, and one threaded rod 10 can be driven to rotate by rotating one of the threaded rods 10, so that the two groups of threaded rods 10 can be driven to rotate simultaneously, the operation difficulty of a user is reduced, and one side of the two groups of first driving wheels 9, which is far away from each other side is provided with a first limiting rotating ring 24, the telescopic round rods 21 are all sleeved with a limiting rotating ring II 25, the limiting rotating ring II 25 is connected with the limiting rotating ring I24 through connecting rods, the threaded rods 10 drive the driving wheel II 22 and the driving wheel I9 to move together, working stability among the driving wheel I9, the driving belt and the driving wheel II 22 is improved, the surface threads of the two groups of threaded rods 10 are opposite, a hand wheel is arranged on one side of one threaded rod 10, the hand wheel is sleeved with a rubber anti-skid sleeve matched with the hand wheel, the moving directions of the two groups of threaded rods 10 under the same steering are opposite, the two groups of extrusion sliding blocks 4 can be driven to move reversely and equidistantly, the hand wheel with the rubber anti-skid sleeves is arranged, and a user can rotate one of the threaded rods 10 conveniently.

For the convenience of understanding the technical solutions of the present invention, the following detailed description will be made on the working principle or the operation mode of the present invention in the practical process.

In practical application, when the arc-shaped wear-resistant pieces 3 need to be replaced, a hand wheel is rotated, one threaded rod 10 is started to rotate and move outwards, the first limit rotating ring 24, the connecting rod and the second limit rotating ring 25 are arranged, the telescopic rectangular rod 23 is extended, the telescopic round rod 21 is contracted, the threaded rod 10 drives the first driving wheel 9 and the second driving wheel 22 to rotate, the telescopic rectangular rod 23 can be driven to rotate, the other threaded rod 10 is driven to rotate, the thread directions of the surfaces of the two groups of threaded rods 10 are opposite, the other threaded rod 10 rotates and moves in the opposite direction, the two groups of extrusion sliding blocks 4 can move away from one side of each other, under the action of the first elastic telescopic rod 11 and the second elastic telescopic rod 13, the two groups of arc-shaped wear-resistant pieces 3 are separated from each other, the corresponding arc-shaped wear-resistant pieces 3 are taken out, and replacement of the arc-shaped wear-resistant pieces 3 with serious wear is facilitated for users, the complete grinding roller head does not need to be replaced, and the cost is greatly saved.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A replaceable grinding roller head device for boiler coal mill equipment is characterized by comprising a U-shaped support frame (1), wherein a movable shaft (2) is arranged at the bottom end of the U-shaped support frame (1), a plurality of arc-shaped wear-resistant pieces (3) which are uniformly distributed are sleeved on the movable shaft (2), a first connecting mechanism is arranged on each of two sides of each arc-shaped wear-resistant piece (3) and one side of each of the other arc-shaped wear-resistant pieces (3), a second connecting mechanism matched with the first connecting mechanism is arranged on each of the other sides of the other arc-shaped wear-resistant pieces (3), symmetrically arranged extrusion sliding blocks (4) are sleeved on the movable shaft (2), connecting rods (5) are arranged at the top ends of the extrusion sliding blocks (4), sliding rods (6) connected with the U-shaped support frame are arranged in the U-shaped support frame (1), and symmetrically arranged sliding sleeves (7) are sleeved on the sliding rods (6), and the sliding sleeve (7) is connected with the connecting rod (5), the outer side of the sliding sleeve (7) is wrapped with an outer frame (8) matched with the sliding sleeve, two groups of the outer frames (8) are provided with a first driving wheel (9) at one side away from each other, two groups of the first driving wheels (9) are provided with a threaded rod (10) penetrating to the outer side of the U-shaped support frame (1) at one side away from each other, and the first driving wheels (9) are connected with each other through a third connecting mechanism.

2. The replaceable grinding roller head device for the boiler coal grinding machine equipment according to claim 1, wherein the connecting mechanism is a first elastic telescopic rod (11) which is symmetrically arranged, one side of the first elastic telescopic rod (11) is provided with an arc-shaped piece (12), one side of the arc-shaped piece (12) is provided with a second elastic telescopic rod (13), and one side of the second elastic telescopic rod (13) is provided with a plug (14).

3. The replaceable grinding roller head device for a boiler coal grinding mill device according to claim 2, wherein the first connecting mechanism comprises symmetrically arranged arc-shaped connecting grooves (15), the arc-shaped connecting grooves (15) are matched with the arc-shaped sheets (12), and slots (16) matched with the plugs (14) are arranged in the arc-shaped connecting grooves (15).

4. The replaceable grinding roller head device for the boiler coal grinding machine device according to claim 1, wherein a plurality of evenly distributed sliding grooves (17) are formed in the surface of the movable shaft (2), iron sheets (18) matched with the sliding grooves are arranged at the bottom ends of the sliding grooves (17), protruding blocks (19) matched with the sliding grooves (17) are arranged on the inner walls of the arc-shaped wear-resisting sheets (3), and magnet blocks (20) are arranged inside the protruding blocks (19).

5. The replaceable grinding roller head device for the boiler coal grinding machine device according to claim 1, wherein the third connecting mechanism comprises symmetrically arranged telescopic round rods (21), the telescopic round rods (21) are connected with the U-shaped support frame (1), two groups of the telescopic round rods (21) are provided with second driving wheels (22) on the sides close to each other, the two groups of the second driving wheels (22) are connected through a telescopic rectangular rod (23), and the second driving wheels (22) and the first driving wheels (9) are connected through a driving belt.

6. The replaceable grinding roller head device for the boiler coal grinding machine equipment is characterized in that one side, away from each other, of each of two groups of the first driving wheels (9) is provided with a first limiting rotary ring (24), each telescopic round rod (21) is sleeved with a second limiting rotary ring (25), and the second limiting rotary ring (25) and the first limiting rotary ring (24) are connected through a connecting rod.

7. The replaceable grinding roller head device for the boiler coal grinding machine equipment according to claim 1, wherein surface threads of two groups of the threaded rods (10) are opposite, one side of one of the threaded rods (10) is provided with a hand wheel, and the hand wheel is sleeved with a matched rubber anti-slip sleeve.