CN218078327U

CN218078327U - Adjustable supporting device for barrel of coal mill

Info

Publication number: CN218078327U
Application number: CN202222203884.3U
Authority: CN
Inventors: 刘胜; 张玉环; 张清林
Original assignee: Jinan Heavy Industry JSCL
Current assignee: Jinan Heavy Industry JSCL
Priority date: 2022-08-22
Filing date: 2022-08-22
Publication date: 2022-12-20
Anticipated expiration: 2032-08-22

Abstract

The utility model discloses an adjustable supporting device of a coal mill barrel, which comprises a stand column, a cross beam, a first connecting shaft, a second connecting shaft, a wear-resistant roller, a balancing weight, a wear-resistant steel ring and counterweight rings, wherein a U-shaped groove and a connecting hole are processed at the upper end of the stand column, the lower end of the stand column is fixed on a foundation, one end of the cross beam is a U-shaped groove, two connecting holes with the same axis are processed on the two side walls of the U-shaped groove, and the other end of the cross beam is welded with a plurality of counterweight rings; the cross beam is connected with a connecting hole at the upper end of the upright post through a first connecting shaft, the cross beam can rotate around the first connecting shaft in a U-shaped groove of the upright post, the wear-resistant roller is arranged in the U-shaped groove of the cross beam, and a second connecting shaft penetrates through the connecting hole of the cross beam and the wear-resistant roller, and two ends of the connecting shaft are fixed with the cross beam through welding; the balancing weight is hung on the balancing weight hanging ring. The utility model discloses can better balance the amount of deflection longer, great coal pulverizer barrel because of gravity produces, balancing weight, the arm of force are adjustable, avoid drive gear to produce vibration, noise and destruction because of the axis position changes.

Description

Adjustable supporting device for barrel of coal mill

Technical Field

The utility model relates to a coal pulverizer barrel adjustable support device belongs to coal pulverizer technical field.

Background

The coal mill is used for drying, crushing and grinding larger coal blocks into powder. With the development of the coal pulverizing and injecting technology, the coal mill has the characteristics of small floor area, low bottom power consumption, low metal consumption, low working noise, reasonable structure, firmness, durability, convenience in maintenance and the like, and is widely applied to steel mills and cement industries.

The rapid development of the economy of China also puts higher requirements on the coal mill: the model is larger, the quality is better, the adaptability to coal types is stronger, and the like. However, in some large coal mills, because the cylinder body has a larger longer diameter, the deflection of the cylinder body is increased under the combined action of factors such as the dead weight of equipment, the weight of steel balls, the weight of full-load materials and the like during working, and a transmission gear cannot be meshed normally to damage the cylinder body, a bearing and the like of the coal mill seriously.

Disclosure of Invention

The utility model aims to solve the technical problem that to the defect that prior art exists, provide an adjustable strutting arrangement of coal pulverizer barrel, the normal operating of protection barrel and bearing.

In order to solve the technical problem, the utility model provides an adjustable supporting device of a coal mill barrel, which comprises a stand column, a cross beam, a first connecting shaft, a second connecting shaft, a wear-resistant roller, a balancing weight, a wear-resistant steel ring and a balancing weight hanging ring, wherein the upper end of the stand column is provided with a U-shaped groove and a connecting hole, the lower end of the stand column is fixed on a foundation, one end of the cross beam is provided with the U-shaped groove, two connecting holes with the same axis are arranged on the two side walls of the U-shaped groove, and the other end of the cross beam is welded with a plurality of balancing weight hanging rings; the cross beam is connected with a connecting hole at the upper end of the upright post through a first connecting shaft through a hinge, the cross beam can rotate in a U-shaped groove of the upright post around the first connecting shaft, the wear-resistant roller is arranged in the U-shaped groove of the cross beam, and a second connecting shaft penetrates through the connecting hole of the cross beam and the wear-resistant roller, and two ends of the connecting shaft are fixed with the cross beam in a welding mode; the balancing weight is hung on the balancing weight hanging ring.

The center of the wear-resistant roller is provided with a circular hole along the axis direction, and the copper sleeve and the wear-resistant roller are fixed together through interference fit.

The rotating range of the cross beam around the first connecting shaft in the U-shaped groove of the upright post is 20-30 degrees

Two grooves are machined in the first connecting shaft in the circumferential direction, and elastic check rings are arranged in the grooves to prevent the first connecting shaft from moving axially.

The distances between the five counterweight hoisting rings of the cross beam and the vertical axis of the upright post form an arithmetic progression, so that the counterweight block can select force arms with different lengths.

The balancing weight is set to be a plurality of different weights, and the lifting hook device on the balancing weight can increase and decrease the balancing weight flexibly.

The wear-resisting steel ring is welded on the cylinder for a circle, and the position of the wear-resisting steel ring corresponds to the position of the wear-resisting roller.

Has the advantages that: the utility model discloses can balance the amount of deflection that longer, great coal pulverizer barrel produced because of factors such as dead weight, steel ball gravity, material gravity well to balancing weight is adjustable, the arm of force is adjustable can satisfy most demands, thereby has played the purpose of protection barrel and bearing, avoids drive gear to change gear vibration, noise and the destruction that produces because of the axis position.

Drawings

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

FIG. 2 is a schematic view of the working state of the present invention;

FIG. 3 is a schematic view of the assembly of the wear-resistant roller and the copper sleeve of the present invention;

fig. 4 is a schematic structural view of the cross beam of the present invention.

In the figure: 1. a column; 2. a cross beam; 3. connecting a shaft I; 4. a circlip; 5. a second connecting shaft; 6. a wear-resistant roller; 7. a balancing weight; 8. a wear-resistant steel ring; 9. a counterweight hoisting ring; 10. and (4) a copper sleeve.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and examples.

As shown in fig. 1-4, the utility model provides an adjustable supporting device of coal mill barrel, including stand 1, crossbeam 2, connecting axle one 3, connecting axle two 5, wear-resisting gyro wheel 6, balancing weight 7, wear-resisting steel ring 8 and counter weight rings 9, the upper end of stand 1 is processed with U-shaped groove and connecting hole, the lower extreme is fixed on the ground, crossbeam 2 one end is the U-shaped groove, is processed with two connecting holes with the same axle center on the both sides wall of U-shaped groove, and five counter weight rings 9 of other end welding; the cross beam 2 is connected with a connecting hole in the upper end of the upright post 1 through a first connecting shaft 3 through a hinge, the cross beam 2 can rotate around the first connecting shaft 3 in a U-shaped groove of the upright post 1, the wear-resistant roller 6 is arranged in the U-shaped groove of the cross beam 2, a second connecting shaft 5 penetrates through the connecting hole of the cross beam 2 and the wear-resistant roller 6, the cross beam 2 and the wear-resistant roller 6 are connected with the copper sleeve 10 together, and two ends of the second connecting shaft 5 are fixed with the cross beam 2 in a welding mode; the balancing weight 7 is hung on the balancing weight hanging ring 9, the wear-resistant roller 6 at the other end of the cross beam 2 generates upward force through a lever principle, the wear-resistant roller 6 is in contact with the barrel, upward supporting force is generated on the barrel, deflection of a part of the barrel due to factors such as dead weight, steel ball gravity and material gravity is offset, the purpose of protecting the barrel and a bearing is achieved, and gear vibration, noise and damage caused by axial line position change of the transmission gear are avoided.

A circular hole is formed in the center of the wear-resistant roller 6 along the axis direction, and the copper sleeve 10 and the wear-resistant roller 6 are fixed together in an interference fit mode.

The rotation range of the cross beam 2 around the connecting shaft I3 in the U-shaped groove of the upright post 1 is 20-30 DEG

The connecting shaft I3 is provided with two grooves along the circumferential direction, and the elastic retainer ring 4 is arranged in the grooves to prevent the connecting shaft I3 from axially moving and achieve the purpose of convenient disassembly.

The distances between the five counterweight hoisting rings 9 of the cross beam 2 and the vertical axis of the upright post 1 form an arithmetic progression, so that the counterweight blocks 7 can select force arms with different lengths.

The counterweight blocks 7 are set to be different in weight, when counterweight is carried out, the lifting force required by the wear-resistant rollers 6 is calculated firstly, then calculation is carried out according to the lever principle, a proper force arm is selected, and the weight of the counterweight blocks 7 is determined; the lifting hook device on the counterweight block 7 can flexibly increase and decrease the counterweight, is convenient to disassemble and assemble, and can be used with the help of auxiliary tools such as a jack or a forklift when the counterweight is increased or decreased. When the required lifting force is larger, a plurality of groups of balancing weights can be used to cooperate with different force arms to provide the lifting force. The structure can be safer and more reliable by the multiple groups of counterweights, and the installation space of the field counterweight block 7 is saved.

The wear-resistant steel ring 8 is welded on the cylinder in a circle, the position of the wear-resistant steel ring corresponds to that of the wear-resistant roller 6, and a good rolling track is provided for the wear-resistant roller 6 at the middle part of the cylinder generally.

The utility model discloses can balance the amount of deflection that longer, great coal pulverizer barrel produced because of factors such as dead weight, steel ball gravity, material gravity well to balancing weight is adjustable, the arm of force is adjustable can satisfy most demands, thereby has played the purpose of protection barrel and bearing, avoids drive gear to change gear vibration, noise and the destruction that produces because of the axis position.

The above embodiments of the present invention are merely examples, not the only ones, and all changes within the scope of the present invention or the same range of the present invention are all surrounded by the present invention.

Claims

1. The utility model provides an adjustable strutting arrangement of coal pulverizer barrel which characterized in that: the device comprises an upright post (1), a cross beam (2), a first connecting shaft (3), a second connecting shaft (5), a wear-resistant roller (6), a balancing weight (7), a wear-resistant steel ring (8) and a counterweight hanging ring (9), wherein a U-shaped groove and connecting holes are formed in the upper end of the upright post (1), the lower end of the upright post is fixed on a foundation, one end of the cross beam (2) is provided with the U-shaped groove, two connecting holes with the same axis are formed in the two side walls of the U-shaped groove, and the other end of the cross beam is welded with the counterweight hanging rings (9); the cross beam (2) is connected with a connecting hole in the upper end of the upright post (1) through a first connecting shaft (3) through a hinge, the cross beam (2) can rotate in a U-shaped groove of the upright post (1) around the first connecting shaft (3), the wear-resistant roller (6) is arranged in the U-shaped groove of the cross beam (2), a second connecting shaft (5) penetrates through the connecting hole of the cross beam (2) and the wear-resistant roller (6), and two ends of the second connecting shaft are fixed with the cross beam (2) in a welding mode; the counterweight block (7) is hung on the counterweight hoisting ring (9).

2. The adjustable support device of a coal pulverizer barrel of claim 1, characterized in that: the center of the wear-resistant roller (6) is provided with a round hole along the axis direction, and the copper sleeve (10) and the wear-resistant roller (6) are fixed together in an interference fit manner.

3. The adjustable support device of a coal pulverizer barrel of claim 1, characterized in that: the rotating range of the cross beam (2) around the connecting shaft I (3) in the U-shaped groove of the upright post (1) is 20-30 degrees.

4. The adjustable support device of a coal pulverizer barrel of claim 1, wherein: the connecting shaft I (3) is machined with two grooves along the circumferential direction, and elastic check rings (4) are arranged in the grooves to prevent the connecting shaft I (3) from moving axially.

5. The adjustable support device of a coal pulverizer barrel of claim 1, characterized in that: the distances between five counterweight hoisting rings (9) of the cross beam (2) and the vertical axis of the upright post (1) form an equal difference array, so that the counterweight block (7) can select force arms with different lengths.

6. The adjustable support device of a coal pulverizer barrel of claim 1, wherein: the counterweight block (7) is set to be a plurality of different weights, and the lifting hook device on the counterweight block (7) can flexibly increase and decrease the counterweight.

7. The adjustable support device of a coal pulverizer barrel as defined in any one of claims 1-6, wherein: the wear-resistant steel ring (8) is welded on the cylinder body for a circle, and the position of the wear-resistant steel ring corresponds to the position of the wear-resistant roller (6).