CN219836596U - Tower mill overhauls lock mechanism of door - Google Patents
Tower mill overhauls lock mechanism of door Download PDFInfo
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- CN219836596U CN219836596U CN202321065022.7U CN202321065022U CN219836596U CN 219836596 U CN219836596 U CN 219836596U CN 202321065022 U CN202321065022 U CN 202321065022U CN 219836596 U CN219836596 U CN 219836596U
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- movable joint
- tower mill
- positioning plates
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- door
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- 238000012423 maintenance Methods 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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Abstract
The utility model belongs to the technical field of tower mills, and particularly relates to a tower mill maintenance door locking mechanism. The problem that when the tower mill is overhauled every time, a large number of bolt groups are required to be disassembled and assembled for opening and closing an access door, so that time and manpower resource are wasted is solved. The positioning plate group comprises a plurality of positioning plate groups arranged on four sides of a cylinder door flange; each positioning plate group comprises two positioning plates which are parallel to each other and a movable joint bolt positioned between the two positioning plates; the eyelet part of the movable joint bolt is fixedly connected with the two positioning plates through a pin shaft, and the movable joint bolt can freely rotate around the pin shaft; the threaded part of the movable joint bolt extends out of the two positioning plates, and the end part of the threaded part is connected with a locking nut; a U-shaped opening I is formed in the flange of the barrel door and corresponds to the movable joint bolt of each positioning plate group, and a U-shaped opening II corresponding to the U-shaped opening I is formed in the flange of the tower mill access door; after the movable joint bolt passes through the first U-shaped opening and the second U-shaped opening, one end which passes through the first U-shaped opening is locked and fixed by a locking nut.
Description
Technical Field
The utility model belongs to the technical field of tower mills, and particularly relates to a tower mill maintenance door locking mechanism.
Background
At present, the tower mill is mainly applied to fine grinding operations in industries such as mines, cement, metallurgy and the like, and can replace a ball mill to be used as second-stage or third-stage ore grinding equipment. Compared with a ball mill, the tower mill has the characteristics of simple structure, small occupied area, high energy utilization rate, low medium ball consumption, uniform product distribution granularity and the like, has been widely accepted in the industry, and has wide market application prospect.
The tower mill needs to be overhauled once every 6 months, and the screw lining plate needs to be replaced by completely opening an access door. In the prior art, a cylindrical body of the tower mill and an access door flange are locked by common bolts, and all bolts must be removed when the tower mill is overhauled every time, so that the access door can be opened. After the maintenance is completed, the bolts are also reinstalled. The disassembly and the installation are time-consuming and labor-consuming, so that the maintenance time is directly prolonged, and certain economic loss is caused for concentrating mills. The utility model is designed to solve the problem that the access door of the tower mill can be quickly opened and closed during each overhaul.
Disclosure of Invention
The utility model provides a tower mill overhaul door locking mechanism aiming at the defects existing in the prior art. The problem that when the tower mill is overhauled every time, a large number of bolt groups are required to be disassembled and assembled for opening and closing an access door, so that time and manpower resource are wasted is solved. The access door can be separated by loosening the lock nut and rotating the movable joint bolt, and when the access door is closed after the maintenance is finished, the movable joint screw is rotated and the lock nut is locked. Greatly shortens the maintenance time of the tower mill and the labor intensity of workers, and brings direct economic benefit to concentrating mills.
In order to achieve the purpose, the utility model adopts the following technical scheme that the positioning plate comprises a plurality of positioning plate groups arranged on four sides of a cylinder door flange; the positioning plate assembly is characterized by comprising two positioning plates which are parallel to each other and a movable joint bolt positioned between the two positioning plates; the eyelet part of the movable joint bolt is fixedly connected with the two positioning plates through a pin shaft, and the movable joint bolt can freely rotate around the pin shaft; the threaded part of the movable joint bolt extends out of the two positioning plates, and the end part of the threaded part is connected with a locking nut.
A U-shaped opening I is formed in the flange of the barrel door and corresponds to the movable joint bolts of each locating plate group, and a U-shaped opening II corresponding to the U-shaped opening I is formed in the flange of the tower mill access door.
The U-shaped openings are two by two in one group and are used for providing channels corresponding to the movable joint bolts, and after the movable joint bolts penetrate through the U-shaped openings and the U-shaped openings, one end which penetrates out is locked and fixed by a locking nut.
Further, two groups of locating plates are welded and fixed on four sides of one side, far away from the access door of the tower mill, of the flange of the barrel body of the tower mill.
Further, in use, washers are disposed on the articulating screw, between the lock nut and the access door flange.
Further, the pin shafts are fixed on the two positioning plates through cotter pins.
Further, check rings are arranged on the pin shafts and between the cotter pins and the corresponding positioning plates.
Further, the first U-shaped notch in each group has the same shape and size as the second U-shaped notch, and the central axes of the first U-shaped notch and the second U-shaped notch are collinear.
Further, the swing bolt is free to rotate about a pin.
Compared with the prior art, the utility model has the beneficial effects.
Because the access door of the tower mill is larger, the locking bolts are more, and the time and the labor are wasted for disassembling the bolt group during each maintenance, the utility model can effectively solve the problem, the bolt group is not required to be disassembled, the opening and the closing of the access door can be realized by only loosening the locking nuts and rotating the movable joint bolts, the maintenance time of the tower mill is greatly shortened, and the labor intensity of workers is reduced.
Drawings
The utility model is further described below with reference to the drawings and the detailed description. The scope of the present utility model is not limited to the following description.
FIG. 1 is a schematic diagram of the three-dimensional structure of the present utility model.
FIG. 2 is a schematic diagram of the three-dimensional structure of the access door of the locking tower mill of the present utility model.
Fig. 3 is a cross-sectional view of the present utility model along the axis of rotation.
In the figure, 1 is a tower mill barrel, 2 is a barrel door flange, 3 is an access door flange, 4 is a tower mill access door, 5 is a lock nut, 6 is a gasket, 7 is a movable joint bolt, 8 is a positioning plate, 9 is a retainer ring, 10 is a pin shaft, and 11 is a cotter pin.
Detailed Description
As shown in fig. 1-3, the tower mill service door locking mechanism: comprises a locating plate 8, a pin shaft 10, a retainer ring 9, a movable joint bolt 7, a locking nut 5, a washer 6 and a cotter pin 11.
The two positioning plates 8 are welded on the back of the tower mill barrel door flange 2 in parallel in advance, the heads of the movable joint bolts 8 are inserted into the middle of the two positioning plates 8, the pin shafts 10 respectively penetrate through the two positioning plates 8 and the pin holes of the heads of the movable joint bolts 7, after the retainer rings 9 are arranged at the tail parts of the pin shafts 10, cotter pins 11 penetrate through pin holes at the tail parts of the pin shafts 10 to be fixed, and at the moment, the movable joint bolts can freely rotate around the pin shafts 10.
The tower grinder barrel 1 and the access door flange 2 are respectively provided with U-shaped openings with the same size, a movable joint bolt 7 is rotated to the center of the U-shaped openings, a gasket 6 and a locking nut 5 are installed, other movable joint bolts 7 are installed by repeating the steps, and finally all nuts 5 are locked, so that the tower grinder access door 4 is installed in place.
During each maintenance, the movable joint bolts 7 can rotate around the pin shafts 10 only by loosening the locking nuts 5, so that the tower mill access door 4 is detached, the movable joint bolt group does not need to be disassembled, the tower mill access door 4 is closed after the maintenance is finished, the movable joint bolts 7 are rotated to the initial positions, all the nuts 5 are locked, and the one-time maintenance of the tower mill is completed.
The tower mill barrel 1 and the access door flange 3 are respectively provided with U-shaped openings, and each group of U-shaped openings are aligned one by one and have the same size.
The movable joint bolt 7 can freely rotate around the pin shaft 10 and can rotate to the central part of the U-shaped notch.
Two locating plates 8 are welded on the back of the cylinder door flange 2 to ensure that the pin shaft holes are parallel to each other and coaxial, and the axis of the pin shaft holes and the axis of the U-shaped notch are on the same plane and are perpendicular to each other.
The installation steps and the working process are as follows:
when in field installation, as shown in figures 1, 2 and 3, the U-shaped openings of the barrel door flange 2 and the access door flange 3 are prefabricated, and each group of U-shaped openings are aligned one by one and have the same size. Two positioning plates 8 are welded to the back of a flange 2 of a door 1 of the tower mill barrel body respectively, the two positioning plates 8 are parallel to each other, pin shaft holes are coaxial, a movable joint bolt 7 is penetrated into the middle of the two positioning plates 8, head holes of the movable joint bolt 7 are coaxial with the pin shaft holes of the two positioning plates 8, a pin shaft 10 is inserted, the pin shaft holes of the positioning plates 8 and the head holes of the movable joint bolt 7 pass through in sequence, and a retainer ring 9 and a cotter pin 11 are arranged at the tail part of the pin shaft 10; the washer 6 and the locking nut 5 are arranged at the tail part of the movable joint bolt 7, the locking nut 5 is screwed, one group of the installation of the utility model is completed at the moment, and the other groups are repeated.
When the access door 4 of the tower mill is closed, the access door 4 is pushed, the access door flange 3 and the barrel door flange 2 are parallel to each other as much as possible, the movable joint bolts 7 are rotated around the pin shafts 10 to the central parts of the U-shaped openings of the access door flange 3 and the barrel door flange 2, all groups repeat the steps, and finally the locking nuts 5 are sequentially screwed, so that the access door 4 of the tower mill is closed.
When the access door 4 of the tower grinder is required to be opened, all groups of locking nuts 5 are screwed in sequence, the locking nuts are not required to be completely dismounted, the movable joint bolts 7 are rotated around the pin shafts 10, the movable joint bolts 7 are separated from U-shaped openings of the access door flange 3 and the barrel door flange 2 respectively, all groups of locking nuts are repeated, and the access door 4 of the tower grinder can be opened after the steps are completed.
It should be understood that the foregoing detailed description of the present utility model is provided for illustration only and is not limited to the technical solutions described in the embodiments of the present utility model, and those skilled in the art should understand that the present utility model may be modified or substituted for the same technical effects; as long as the use requirement is met, the utility model is within the protection scope of the utility model.
Claims (7)
1. A tower mill maintenance door locking mechanism comprises a plurality of positioning plate groups arranged on four sides of a cylinder door flange; the method is characterized in that: each positioning plate group comprises two positioning plates which are parallel to each other and a movable joint bolt positioned between the two positioning plates; the eyelet part of the movable joint bolt is fixedly connected with the two positioning plates through a pin shaft, and the movable joint bolt can freely rotate around the pin shaft; the threaded part of the movable joint bolt extends out of the two positioning plates, and the end part of the threaded part is connected with a locking nut;
a U-shaped opening I is formed in the flange of the barrel door and corresponds to the movable joint bolt of each positioning plate group, and a U-shaped opening II corresponding to the U-shaped opening I is formed in the flange of the tower mill access door;
the U-shaped openings are two by two in one group and are used for providing channels corresponding to the movable joint bolts, and after the movable joint bolts penetrate through the U-shaped openings and the U-shaped openings, one end which penetrates out is locked and fixed by a locking nut.
2. The tower mill service door locking mechanism of claim 1, wherein: and the two positioning plates are welded and fixed on four sides of one side, far away from the access door of the tower mill, of the barrel body flange of the tower mill.
3. The tower mill service door locking mechanism of claim 1, wherein: when in use, washers are arranged on the movable joint screw rod and between the locking nut and the access door flange.
4. The tower mill service door locking mechanism of claim 1, wherein: the pin shafts are fixed on the two positioning plates through cotter pins.
5. The tower mill service door locking mechanism of claim 4, wherein: and check rings are arranged on the pin shafts and between the cotter pins and the corresponding positioning plates.
6. The tower mill service door locking mechanism of claim 1, wherein: the U-shaped openings in each group are identical in shape and size with the U-shaped openings, and the central axes of the U-shaped openings are collinear.
7. The tower mill service door locking mechanism of claim 1, wherein: the swing bolt can freely rotate around the pin shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321065022.7U CN219836596U (en) | 2023-05-06 | 2023-05-06 | Tower mill overhauls lock mechanism of door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321065022.7U CN219836596U (en) | 2023-05-06 | 2023-05-06 | Tower mill overhauls lock mechanism of door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219836596U true CN219836596U (en) | 2023-10-17 |
Family
ID=88300927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321065022.7U Active CN219836596U (en) | 2023-05-06 | 2023-05-06 | Tower mill overhauls lock mechanism of door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219836596U (en) |
-
2023
- 2023-05-06 CN CN202321065022.7U patent/CN219836596U/en active Active
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