CN205182856U - Easily dismantle upright mill grinding roller of roller shell - Google Patents
Easily dismantle upright mill grinding roller of roller shell Download PDFInfo
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- CN205182856U CN205182856U CN201520839548.5U CN201520839548U CN205182856U CN 205182856 U CN205182856 U CN 205182856U CN 201520839548 U CN201520839548 U CN 201520839548U CN 205182856 U CN205182856 U CN 205182856U
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Abstract
The utility model relates to an easily dismantle upright mill grinding roller of roller shell, including wheel hub and roller shell, be cone combined with between the internal surface of roller shell partly at least and the wheel hub, the roller shell is compressed tightly on wheel hub by the roller shell gland, its characterized in that: wheel hub be equipped with the hydraulic pressure oilhole with roller shell cone combined with department, the hydraulic pressure oilhole leaves the import on wheel hub's terminal surface, the threaded connection of import department of hydraulic pressure oilhole has the plug screw. The advantage is: the separation roller shell of this patent when by a wide margin reduce dismantling and wheel hub's effort improve the efficiency of dismantling.
Description
Technical field
The invention belongs to the design field of vertical roller grinder, particularly relates to a kind of grinding roller of vertical mill being easy to dismantle roller shell.
Background technology
Vertical roller grinder applies bed-grinding principle, and collection fragmentation, drying, grinding, classification are transported in one, and mill efficiency is high, and energy consumption is low, is thus widely used.Vertical mill grinding material is under the high pressure effect between grinding roller and mill, the finished product becoming to meet the requirements by bulk materials grinding.Grinding set and lining board for grinding discs directly and material touching position, and bear very large pressure, and roller shell and liner plate are the consumable accessory of vertical roller grinder routine for this reason.According to different material, life-span of grinding roller and lining board for grinding discs is not at 1000h-5000h hour etc.Although along with the development of high-abrasive material, there is certain prolongation in the roller shell life-span, and for Vertical Mill user, changing roller shell must grasp.
When changing roller shell, roller shell is often difficult to pull down.Its reason is mainly: 1. the location of the roller shell of grinding roller is not located by the shaft shoulder, but by two opposing parallel conical surfaces cooperatively interact realize location, so roller shell can under the effect of frictional force after compressing, became one with wheel hub, 2. vertical roller grinder in the course of the work, grinding roller bears very high pressure, and pressure is generally perpendicular to roll surface, and this pressure facilitates the combination of roller shell and wheel hub at the component of axis.3. the operating temperature of vertical grinding roll cover is through being everlasting between 200-300 degree, due to HTHP effect, the contact surface of roller shell and wheel hub may be caused to create adhesion.
When dismantling roller shell, cannot be pulled down by means of roller shell lifting device and crane, on-the-spot way normally, to roller shell homogeneous heating, utilizes the principle of expanding with heat and contract with cold to remove roller shell.But the method is quite harsh to site requirements and weather, climate requirements, and heating cycle and homogeneous heating degree all have high requirements, thus field stripping roller shell is a very complicated job.
Summary of the invention
The invention provides a kind of grinding roller of vertical mill being easy to dismantle roller shell for solving in known technology the technical problem that exists, and separation roller shell when this grinding roller of vertical mill significantly can reduce dismounting and the active force of wheel hub, improve the efficiency dismantled.
A kind of grinding roller of vertical mill being easy to dismounting roller shell, comprise wheel hub and roller shell, the inner surface of roller shell at least partially and be cone match between wheel hub, roller shell is pressed on wheel hub by roller shell gland, hydraulic pressure oilhole is provided with roller shell cone match place at wheel hub, hydraulic pressure oilhole leaves import on the end face of wheel hub, and the import department of hydraulic pressure oilhole has been threaded plug screw.
The invention can also by the following technical solutions:
Preferred technical scheme, its additional technical feature is: be provided with annular groove in the junction of wheel hub and roller shell, groove is arranged at least one in wheel hub and roller shell, and in the region being arranged on wheel hub and roller shell cone match at least partially of groove.
Because the invention adopts technique scheme, this device is easy to processing and manufacturing, and manufacture craft is simple.Both can not affect the intensity of wheel hub, the contact area of wheel hub and roller shell can not have been had influence on again.And, connect hydraulic oil and can play effect, easy to use at the scene, save manpower, improve overhaul efficiency.In addition, this device, also without any need for maintenance work, can not lose efficacy.So patent device is reasonable in design, device simple possible, the advantage such as cheap for manufacturing cost, economic benefit that can be huge.
Accompanying drawing explanation
Fig. 1 is the structural representation of the invention;
Fig. 2 is the schematic diagram of grinding roller field stripping.
In figure: 1, roller shell gland; 2, roller shell; 3, hydraulic pressure oilhole; 4, plug screw; 5, wheel hub; 6, roller shell lifting tool.
Detailed description of the invention
For innovation and creation content, the Characteristic of the invention can be understood further, hereby exemplify following examples, be described in detail as follows:
As shown in Figure 1,
A kind of grinding roller of vertical mill being easy to dismounting roller shell, comprise wheel hub 5 and roller shell 2, the inner surface of roller shell at least partially and be cone match between wheel hub, roller shell is pressed on wheel hub by roller shell gland 1, hydraulic pressure oilhole 3 is provided with roller shell cone match place at wheel hub, hydraulic pressure oilhole leaves import on the end face of wheel hub, and the import department of hydraulic pressure oilhole has been threaded plug screw 4.Annular groove is provided with in the junction of wheel hub and roller shell, what groove was corresponding is arranged on wheel hub and roller shell, and in the region being arranged on wheel hub and roller shell cone match at least partially of groove, i.e. the radius of edge relative to grinding roller axis being greater than another sidewall of groove relative to the radius of grinding roller axis at the edge of a sidewall of groove.
The operating principle of the invention is:
As shown in Figure 2:
When needs dismounting roller shell 2, plug screw 4 is taken off, conduit under fluid pressure is connected with hydraulic pressure oilhole 3, note the sealing connected.Utilize manually or portable liquid pressing system be supplied to the hydraulic oil of hydraulic pressure oilhole 3 high pressure.Pressure in the duct, is transferred to roller shell 2 with on the contact surface of wheel hub 5, thus is peeling roller shell 2 and the power of wheel hub 5, make roller shell 2 depart from wheel hub 5 by the hydraulic oil of high pressure.Utilize roller shell lifting device 6 under the effect of crane, old roller shell is changed, new roller shell is installed, complete more changing jobs of grinding roller.
This patent is the design by dismounting roller shell device, is delivered to by the hydraulic oil of high pressure on the contact surface of roller shell and wheel hub, under the effect of hydraulic pressure, completes the mask work of roller shell and wheel hub, thus conveniently complete more changing jobs of roller shell.
Although be described the preferred embodiment of the invention above; but the invention is not limited to above-mentioned detailed description of the invention; above-mentioned detailed description of the invention is only schematic; be not restrictive; those of ordinary skill in the art is under the enlightenment of the invention; do not departing under the ambit that the invention aim and claim protect, can also make a lot of form, these all belong within the protection domain of the invention.
Claims (2)
1. one kind is easy to the grinding roller of vertical mill dismantling roller shell, comprise wheel hub and roller shell, the inner surface of described roller shell at least partially and be cone match between wheel hub, roller shell is pressed on wheel hub by roller shell gland, it is characterized in that: be provided with hydraulic pressure oilhole at wheel hub with roller shell cone match place, hydraulic pressure oilhole leaves import on the end face of wheel hub, and the import department of hydraulic pressure oilhole has been threaded plug screw.
2. the grinding roller of vertical mill being easy to dismounting roller shell according to claim 1, it is characterized in that: be provided with annular groove in the junction of wheel hub and roller shell, groove is arranged at least one in wheel hub and roller shell, and in the region being arranged on wheel hub and roller shell cone match at least partially of groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520839548.5U CN205182856U (en) | 2015-10-27 | 2015-10-27 | Easily dismantle upright mill grinding roller of roller shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520839548.5U CN205182856U (en) | 2015-10-27 | 2015-10-27 | Easily dismantle upright mill grinding roller of roller shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205182856U true CN205182856U (en) | 2016-04-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520839548.5U Active CN205182856U (en) | 2015-10-27 | 2015-10-27 | Easily dismantle upright mill grinding roller of roller shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205182856U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110369048A (en) * | 2019-07-26 | 2019-10-25 | 谭士龙 | A kind of vertical grinding roll cover |
-
2015
- 2015-10-27 CN CN201520839548.5U patent/CN205182856U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110369048A (en) * | 2019-07-26 | 2019-10-25 | 谭士龙 | A kind of vertical grinding roll cover |
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Legal Events
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190322 Address after: Tianjin District of Beichen city in the 300400 major North Road No. 1 Co-patentee after: Tianjin Cement Industry Design & Research Institute Co., Ltd. Patentee after: Sinoma (Tianjin) powder technology equipment Co., Ltd. Address before: Tianjin District of Beichen city in the 300400 major North Road No. 1 Co-patentee before: Sinoma Technology & Equipment Group Co., Ltd. Patentee before: Sinoma (Tianjin) powder technology equipment Co., Ltd. |