CN209735712U

CN209735712U - Vertical grinding roller with buffering function

Info

Publication number: CN209735712U
Application number: CN201920422803.4U
Authority: CN
Inventors: 李忠学; 龙才一; 刘�文
Original assignee: Loudi Hi Tech Environmental Protection Technology Co Ltd
Current assignee: Loudi Hi Tech Environmental Protection Technology Co Ltd
Priority date: 2019-03-31
Filing date: 2019-03-31
Publication date: 2019-12-06
Anticipated expiration: 2029-03-31

Abstract

The utility model provides a vertical mill grinding roller with buffer function, it includes vertical mill, the middle part of vertical mill is equipped with vertical mill room, the bottom of vertical mill room inner chamber is equipped with the mill, install the power shaft through the rocking arm above the mill, install the grinding roller on the power shaft, the grinding roller includes inner ring, outer loop, wherein, the inner ring is fixed and sleeved on the power shaft, the outer loop suit is in the inner ring outside, reserve between inner ring surface and the outer loop surface after the suit and leave the buffer zone, be equipped with the buffering subassembly in the buffer zone; after adopting above-mentioned scheme, after the raw materials added the vertical milling room, the grinding roller was ground to the raw materials in the rotation under the drive of outside motor, and the grinding roller is upwards jack-up to the raw materials of big granule during the grinding to effectively reduce the wear rate of grinding roller, prolong the life of grinding roller.

Description

Vertical grinding roller with buffering function

Technical Field

The utility model relates to a found the mill, especially indicate a found mill grinding roller with buffer function.

Background

Most of the existing grinding rollers of the vertical mill are of fixed structures, when large-particle raw materials are ground, the grinding rollers, the grinding disc and the raw materials are rigidly rolled, and the raw materials are easy to scrape the surfaces of the grinding rollers and damage the surfaces of the grinding rollers, so that the service life of the grinding rollers of the vertical mill is shortened.

Disclosure of Invention

An object of the utility model is to provide a found grinding roller with buffer function.

In order to achieve the above object, the present invention provides a technical solution: the grinding roller of the vertical mill with the buffering function comprises a vertical mill, wherein a vertical milling chamber is arranged in the middle of the vertical mill, a grinding disc is arranged at the bottom of an inner cavity of the vertical milling chamber, a power shaft is arranged above the grinding disc through a rocker arm, the grinding roller is arranged on the power shaft and comprises an inner ring and an outer ring, the inner ring is fixedly sleeved on the power shaft, the outer ring is sleeved outside the inner ring, a buffering area is reserved between the outer ring surface of the sleeved inner ring and the inner ring surface of the outer ring, and a buffering component is arranged in the buffering area; the buffer assembly comprises a buffer screw rod, a buffer cylinder and a buffer spring, wherein one end of the buffer cylinder is fixed on the outer ring surface of the inner ring, the central line of the fixed buffer cylinder is perpendicular to the axis of the rotating shaft, an inwards concave mounting groove is arranged on the inner ring surface of the outer ring, one end of the buffer screw rod is movably inserted into the buffer cylinder, the other end of the buffer screw rod is mounted in the mounting groove, the buffer spring is sleeved on the buffer cylinder, one end of the sleeved buffer spring is abutted against the outer ring surface of the inner ring, and the other end of the buffer spring is abutted against the inner ring surface of the outer; the distance between the outer ring surface of the inner ring and the inner ring surface of the outer ring is a, the length of the buffer cylinder is b, the length of the buffer screw is c, and a is more than b and more than c.

The number of the buffer components is larger than that of the buffer components, and the buffer components are uniformly distributed between the inner ring and the outer ring by taking the axis of the rotating shaft as a center.

The inner cavity wall of the mounting groove is provided with internal threads, and the buffer screw rod is meshed with the internal threads.

The outer anchor ring of inner ring on the extension be formed with two annular interior dust boards, the buffering subassembly is located between two blocks of interior dust boards, outer ring inner ring face edge is equipped with outer dust board, outer dust board is the annular, through bolt or welded fastening in outer ring edge, outer dust board inside wall after the installation with interior dust board lateral wall with contact.

The utility model discloses after adopting above-mentioned scheme, form the district of milling between grinding roller bottom and the mill, the raw materials is added and is immediately ground the room after, and the grinding roller is rotatory to the raw materials milling under the drive of outside motor, and the raw materials of big granule makes progress jack-up grinding roller when milling to effectively reduce the wear rate of grinding roller, prolong the life of grinding roller.

Drawings

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

Fig. 2 is the internal structure diagram of the grinding roller of the utility model.

Fig. 3 is a schematic sectional view of the grinding roller of the present invention.

Detailed Description

The utility model discloses a make further explanation below in combination with all drawings, the utility model discloses a preferred embodiment do, see attached 1 to attached 3, this embodiment the vertical mill grinding roller with buffer function, it is including founding mill 1, founds 1 middle parts of mill and is equipped with immediately and grinds the room, founds mill indoor chamber bottom and is equipped with the mill, power shaft 5 is installed through rocking arm 3 in the mill top, installs the grinding roller on power shaft 5, its characterized in that: the grinding roller comprises an inner ring 7 and an outer ring 8, wherein the inner ring 7 is fixedly sleeved on the power shaft 5, the outer ring 8 is sleeved outside the inner ring 7, a buffer area is reserved between the outer ring surface of the sleeved inner ring 7 and the inner ring surface of the outer ring 8, and a buffer assembly is arranged in the buffer area; the buffer assembly comprises a buffer screw rod 9, a buffer cylinder 10 and a buffer spring 11, wherein one end of the buffer cylinder 10 is fixed on the outer annular surface of the inner ring 7, the central line of the fixed buffer cylinder 10 is vertical to the axis of the rotating shaft 6, an inwards concave mounting groove 12 is arranged on the inner annular surface of the outer ring 8, one end of the buffer screw rod 9 is movably inserted into the buffer cylinder 10, the other end of the buffer screw rod 9 is arranged in the mounting groove 12, the buffer spring 11 is sleeved on the buffer cylinder 10, one end of the sleeved buffer spring 11 is abutted against the outer annular surface of the inner ring 7, and the other end of the buffer spring 11 is abutted against the inner annular surface of the outer ring 8; the distance between the outer ring surface of the inner ring 7 and the inner ring surface of the outer ring 8 is a, the length of the buffer cylinder 10 is b, the length of the buffer screw 9 is c, and a is more than b and more than c; the number of the buffer components is more than 2, and the buffer components are uniformly distributed between the inner ring 7 and the outer ring 8 by taking the axis of the rotating shaft 6 as a center; the inner cavity wall of the mounting groove 12 is provided with internal threads, and the buffer screw 9 is meshed with the internal threads; the extension is formed with two annular interior dust boards 13 on the outer anchor ring of inner ring 7, and the buffer unit is located between two piece interior dust boards 13, and 8 interior anchor ring edges of outer ring are equipped with outer dust board 14, and outer dust board 14 is the annular, through bolt or welded fastening in 8 edges of outer ring, and outer dust board 14 inside wall and interior dust board 13 lateral wall after the installation with contact. A grinding area is formed between the bottom of the grinding roller and the grinding disc, after the raw material is added into the vertical grinding chamber, the grinding roller is driven by an external motor to rotate to grind the raw material, when large-particle raw material enters the grinding area, the grinding roller can be jacked upwards, at the moment, the spring is compressed, the height of the grinding area is enlarged, when the large-particle raw material leaves the grinding area, the spring is reset, the grinding area is reset, when the large-particle raw material passes through the grinding area, the outer ring can grind the large-particle raw material by a certain amount under the action of the spring, the large-particle raw material repeatedly enters the grinding area, from large particles to the completion of grinding, and the buffer component is adopted to effectively avoid excessive hard extrusion of the large-particle raw material; the tension of the buffer spring is designed according to the hardness of the raw materials and the strength of the grinding roller; the utility model discloses after adopting above-mentioned scheme reasonable, the life who has prolonged the grinding roller immediately.

Claims

1. Found mill grinding roller with buffer function, it is equipped with upright mill room including founding mill (1), founds mill (1) middle part, founds mill room inner chamber bottom and is equipped with the mill, and power axle (5) are installed through rocking arm (3) in the mill top, installs grinding roller, its characterized in that on power axle (5): the grinding roller comprises an inner ring (7) and an outer ring (8), wherein the inner ring (7) is fixedly sleeved on the power shaft (5), the outer ring (8) is sleeved on the outer side of the inner ring (7), a buffer area is reserved between the outer ring surface of the sleeved inner ring (7) and the inner ring surface of the outer ring (8), and a buffer assembly is arranged in the buffer area; the buffer assembly comprises a buffer screw rod (9), a buffer cylinder (10) and a buffer spring (11), wherein one end of the buffer cylinder (10) is fixed on the outer annular surface of the inner ring (7), the central line of the fixed buffer cylinder (10) is perpendicular to the axis of the rotating shaft (6), an inward concave mounting groove (12) is formed in the inner annular surface of the outer ring (8), one end of the buffer screw rod (9) is movably inserted into the buffer cylinder (10), the other end of the buffer screw rod (9) is mounted in the mounting groove (12), the buffer spring (11) is sleeved on the buffer cylinder (10), one end of the sleeved buffer spring (11) is abutted against the outer annular surface of the inner ring (7), and the other end of the buffer spring (11) is abutted against the inner annular surface of the outer ring (8); the distance between the outer ring surface of the inner ring (7) and the inner ring surface of the outer ring (8) is a, the length of the buffer cylinder (10) is b, the length of the buffer screw (9) is c, and a is more than b and more than c.

2. A grinding roll of a vertical mill having a buffering function according to claim 1, wherein: the number of the buffer components is more than 2, and the buffer components are uniformly distributed between the inner ring (7) and the outer ring (8) by taking the axis of the rotating shaft (6) as the center.

3. A grinding roll of a vertical mill having a buffering function according to claim 1, wherein: the inner cavity wall of the mounting groove (12) is provided with internal threads, and the buffer screw rod (9) is meshed and connected with the internal threads.

4. A grinding roll of a vertical mill having a buffering function according to claim 1, wherein: the expansion is formed with two annular interior dust boards (13) on the outer anchor ring of inner ring (7), and the buffering subassembly is located between two blocks of interior dust boards (13), and outer ring (8) inner ring face edge is equipped with outer dust board (14), and outer dust board (14) are the annular, through bolt or welded fastening in outer ring (8) edge, outer dust board (14) inside wall after the installation and interior dust board (13) lateral wall with contact.