CN216063388U - Roll turning mechanism of vertical mill grinding roll and vertical mill - Google Patents
Roll turning mechanism of vertical mill grinding roll and vertical mill Download PDFInfo
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- CN216063388U CN216063388U CN202120612589.6U CN202120612589U CN216063388U CN 216063388 U CN216063388 U CN 216063388U CN 202120612589 U CN202120612589 U CN 202120612589U CN 216063388 U CN216063388 U CN 216063388U
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Abstract
The utility model provides a roller turning mechanism of a grinding roller of a vertical mill and the vertical mill, which comprise a base, wherein a pressurizing oil cylinder is arranged on the base, the telescopic end of the pressurizing oil cylinder is movably connected with a movable arm, the other end of the movable arm is fixedly connected with a rocker arm, a grinding roller device is arranged on the rocker arm, a maintenance oil cylinder is movably connected onto the rocker arm, the other end of the maintenance oil cylinder is fixed on the base, and the overturning of the grinding roller is controlled by the mutual matching of the pressurizing oil cylinder and the maintenance oil cylinder. According to the characteristics and the field working conditions of the vertical mill, the manufacturing cost is reduced and the installation space is saved according to local conditions, the use of the oil cylinder provides reliable power to enable the grinding roller device to be turned out of the vertical mill, the roller turning time depends on the flow of the hydraulic station, the maintenance oil cylinder can independently use a mobile hydraulic station with the pressure of 16MPa or a hydraulic station which jointly uses a pressurizing oil cylinder, the mechanism is simple and convenient, the operation is reliable, the space structure of the vertical mill is fully exerted, and the rapid and safe roller turning action is finally realized.
Description
Technical Field
The utility model belongs to the technical field of vertical mills, and particularly relates to a roller turning mechanism of a vertical mill grinding roller in maintenance of a vertical mill.
Background
In the field of cement production, the traditional grinding equipment is a ball mill, but the ball mill has low energy utilization rate, low grinding efficiency and high power consumption of system units, and along with the increasingly intense market competition, the vertical mill gradually replaces the ball mill as final grinding equipment in the raw material grinding market due to the advantages of high energy utilization rate, high grinding efficiency, low power consumption of system units and the like. Along with the popularization of the market, the excellent characteristics of the vertical mill are greatly developed and are gradually applied to the fields of metallurgy, chemical industry, power plants and the like, ground materials are also more extensive, the grindability of different materials is greatly different, particularly, the large-scale slag mill is developed, the abrasion of the materials to a grinding roller sleeve is very quick, in order to ensure the fineness and the yield of a finished product, the grinding roller sleeve must be replaced in time, the replacement period of the roller sleeve is generally 6 months, the nonuniformity of the particle size of the materials generates great impact force on the grinding roller, particularly, the newly operated vertical mill has great problems, particularly, the abnormal sound exists in the operation of a bearing, the grinding roller device must be turned out of the vertical mill in time, the operation state of the bearing is checked, generally, the self weight of the grinding roller device is dozens of tons, and how to quickly and safely turn out the grinding roller device out of the vertical mill is particularly important.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a vertical grinding roller turning mechanism for a grinding roller has the advantages that the grinding roller sleeve of the vertical grinding roller is worn rapidly, the grinding roller sleeve must be replaced timely in order to ensure the quality and the yield of finished products, failed bearings are replaced sometimes, and the loss caused by overlong downtime is reduced.
In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:
the utility model provides a roll-over mechanism of vertical grinding roller, includes the base, installs pressurization hydro-cylinder on the base, and the flexible end swing joint of pressurization hydro-cylinder has the swing arm, and the swing arm other end fixed connection rocking arm, grinding roller device install on the rocking arm, swing joint has the maintenance hydro-cylinder on the rocking arm, and this maintenance hydro-cylinder other end is fixed on the base, controls the upset of grinding roller through mutually supporting of pressurization hydro-cylinder and maintenance hydro-cylinder.
Preferably, the maintenance oil cylinder and the pressurizing oil cylinder are respectively and movably connected to the base through pin shafts.
Preferably, the movable arm and the rocker arm are fixedly connected through two pin shafts.
Preferably, the pressurizing oil cylinder is movably connected with a lower end hole of the movable arm through a pin shaft.
The utility model provides a vertical mill, this vertical mill installs above-mentioned turnover roller mechanism, is equipped with the access hole on vertical mill, and access hole department is connected with the access door, access hole space enough supply the grinding roller upset.
The utility model has the beneficial effects that: according to the characteristics and the field working conditions of the vertical mill, the manufacturing cost is reduced and the installation space is saved according to local conditions, the use of the oil cylinder provides reliable power to enable the grinding roller device to be turned out of the vertical mill, the roller turning time depends on the flow of the hydraulic station, the maintenance oil cylinder can independently use a mobile hydraulic station with the pressure of 16MPa or a hydraulic station which jointly uses a pressurizing oil cylinder, the mechanism is simple and convenient, the operation is reliable, the space structure of the vertical mill is fully exerted, and the rapid and safe roller turning action is finally realized.
Drawings
FIG. 1 is a schematic structural view of the present invention;
in the figure: 1. a base; 2. overhauling the oil cylinder; 3. a pressurizing oil cylinder; 4. a movable arm; 5. a rocker arm; 6. a grinding roller device; 7. an access door.
Detailed Description
The present invention will be further described with reference to the following examples.
Examples
As shown in fig. 1, a grinding roller overturning mechanism is specially arranged on the vertical mill for facilitating the maintenance and replacement of the grinding roller, an access hole for overturning the grinding roller is formed in a frame of the vertical mill, an access door 7 is installed at the access hole, the access door is removed when maintenance is needed, the access door is fixed again after repair, the grinding roller overturning mechanism comprises an access oil cylinder 2, a pressurizing oil cylinder 3, a movable arm 4, a rocker arm 5 and a base 1, a four-bar mechanism is formed by the grinding roller overturning mechanism, and the degree of freedom of the mechanism is 1. The maintenance oil cylinder 2 and the pressurization oil cylinder 3 are connected to the base 1 together, the telescopic end of the pressurization oil cylinder 3 is movably connected with the movable arm 4, the other end of the movable arm 4 is fixedly connected with the rocker arm 5, the grinding roller device 6 is installed on the rocker arm 5, the maintenance oil cylinder 2 is movably connected to the rocker arm 5, the other end of the maintenance oil cylinder 2 is fixed to the base 1, and the pressurization oil cylinder 3 and the maintenance oil cylinder 2 are matched with each other to control overturning of the grinding roller. The maintenance oil cylinder 2 and the pressurizing oil cylinder 3 are connected to the base 1 together, so that not only is the space saved, but also the production cost is reduced. When the grinding operation is required, oil is fed into a rod cavity of the pressurizing oil cylinder 3, continuous grinding operation is realized under the rotation of the grinding disc, the rocker arm 5 is connected with the movable arm 4 through the pin shaft and limits the displacement of the pin shaft, and the roller turning action of the vertical mill is realized under the action of the maintenance oil cylinder 2. The mechanism is simple and convenient, runs reliably, gives full play to the spatial structure of the vertical mill, and finally realizes the rapid and safe roll turning action.
Before the roller is turned over, people do not need to be around the vertical mill, the vertical mill has to be stopped for a period of time, the roller turning action is carried out when the temperature inside reaches the ambient temperature, the hydraulic oil of the pressurizing oil cylinder 3 is released, then the hydraulic oil of 16MPa is introduced into the rod cavity of the maintenance oil cylinder 2, negative pressure possibly exists in the vertical mill at first, so the roller is turned over by using points until the vertical mill is turned out, finally, the operations of replacing a roller sleeve, a bearing and the like are carried out, the hydraulic oil of the maintenance oil cylinder 2 is released after the replacement is finished, the hydraulic oil is introduced into the pressurized rod cavity, and the resetting of the grinding roller device 6 is finally realized along with the shortening of the pressurizing oil cylinder 3. The mechanism is simple and convenient, runs reliably, gives full play to the spatial structure of the vertical mill, and finally realizes the rapid and safe roll turning action.
The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to explain the principles of the utility model, and that various modifications and alterations can be made by those skilled in the art without departing from the spirit and scope of the utility model.
Claims (5)
1. The utility model provides a roll-turning mechanism of vertical grinding roller which characterized in that: the grinding roller overturning device comprises a base, wherein a pressurizing oil cylinder is installed on the base, a telescopic end of the pressurizing oil cylinder is movably connected with a movable arm, the other end of the movable arm is fixedly connected with a rocker arm, a grinding roller device is installed on the rocker arm, a maintenance oil cylinder is movably connected onto the rocker arm, the other end of the maintenance oil cylinder is fixed on the base, and the overturning of the grinding roller is controlled through the mutual matching of the pressurizing oil cylinder and the maintenance oil cylinder.
2. The roll turning mechanism of a grinding roll of a vertical grinding mill as claimed in claim 1, wherein: the maintenance oil cylinder and the pressurizing oil cylinder are respectively and movably connected on the base through pin shafts.
3. The roll turning mechanism of a grinding roll of a vertical grinding mill as claimed in claim 1, wherein: the movable arm and the rocker arm are fixedly connected through two pin shafts.
4. The roll turning mechanism of a grinding roll of a vertical grinding mill as claimed in claim 1, wherein: the pressurizing oil cylinder is movably connected with a lower end hole of the movable arm through a pin shaft.
5. A vertical mill provided with the roll-turning mechanism of any one of claims 1 to 4, characterized in that: the vertical mill is provided with an access hole, the access hole is connected with an access door, and the space of the access hole is enough for the milling roller to overturn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120612589.6U CN216063388U (en) | 2021-03-26 | 2021-03-26 | Roll turning mechanism of vertical mill grinding roll and vertical mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120612589.6U CN216063388U (en) | 2021-03-26 | 2021-03-26 | Roll turning mechanism of vertical mill grinding roll and vertical mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216063388U true CN216063388U (en) | 2022-03-18 |
Family
ID=80635018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120612589.6U Active CN216063388U (en) | 2021-03-26 | 2021-03-26 | Roll turning mechanism of vertical mill grinding roll and vertical mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216063388U (en) |
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2021
- 2021-03-26 CN CN202120612589.6U patent/CN216063388U/en active Active
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