CN207187849U - Assembled wear-resistant grinding roller - Google Patents
Assembled wear-resistant grinding roller Download PDFInfo
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- CN207187849U CN207187849U CN201720960732.4U CN201720960732U CN207187849U CN 207187849 U CN207187849 U CN 207187849U CN 201720960732 U CN201720960732 U CN 201720960732U CN 207187849 U CN207187849 U CN 207187849U
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- 239000000463 material Substances 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 229910001018 Cast iron Inorganic materials 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Crushing And Grinding (AREA)
Abstract
本实用新型涉及一种磨辊，特别是涉及一种装配式耐磨磨辊，属于破碎装备技术领域。磨辊作为盘辊破碎机的一个主要磨损件，其使用寿命的长短，决定了设备使用企业的经济效益。现有的磨辊存在寿命短，磨损失效时需要整体更换的问题。本实用新型提供了一种用于破碎物料的装配式耐磨磨辊，包含辊芯、耐磨辊皮、连接螺栓，所述耐磨辊皮上设有沉孔，所述辊芯上设有螺纹孔，所述连接螺栓通过耐磨辊皮上的沉孔和辊芯上的螺纹孔将耐磨辊皮连接在辊芯上。所述耐磨辊皮在磨辊高度方向上被分割成3~6圈。在磨辊高度方向上每一圈耐磨辊皮被分拆成3~6块。该装配式耐磨磨辊由于耐磨辊皮可以更换，具有耐磨性好，使用成本低等一系列优点。
The utility model relates to a grinding roller, in particular to an assembled wear-resistant grinding roller, which belongs to the technical field of crushing equipment. Grinding roller is a main wear part of disc roller crusher, and its service life determines the economic benefits of equipment users. The existing grinding rollers have the problems of short service life and need to be replaced as a whole when worn out. The utility model provides an assembled wear-resistant grinding roller for crushing materials, which comprises a roller core, a wear-resistant roller skin, and connecting bolts. The wear-resistant roller skin is provided with a sink hole, and the roller core is provided with a threaded hole, and the connecting bolt connects the wear-resistant roller skin to the roller core through the counterbore on the wear-resistant roller skin and the threaded hole on the roller core. The wear-resistant roller skin is divided into 3 to 6 circles in the height direction of the grinding roller. In the height direction of the grinding roller, each circle of wear-resistant roller skin is divided into 3~6 pieces. Since the wear-resistant roller skin can be replaced, the assembled wear-resistant grinding roller has a series of advantages such as good wear resistance and low use cost.
Description
技术领域technical field
本实用新型涉及一种磨辊，特别是涉及一种装配式耐磨磨辊，属于磨粉破碎设备技术领域。The utility model relates to a grinding roller, in particular to an assembled wear-resistant grinding roller, which belongs to the technical field of grinding and crushing equipment.
背景技术Background technique
在煤炭、冶金、矿山、电力、建材、耐火材料、能源等行业大量使用各种盘辊式磨粉机和破碎机，这其中磨辊作为一个主要的磨损件，其耐磨程度的高低，使用寿命的长短，一定程度上决定了企业的经济效益。目前使用的磨辊，主要为整体铸造的金属耐磨材料磨辊。这种磨辊由于采用单一金属材料，而磨辊由于安装要求需要进行机械加工，因此硬度不能太高，否则影响磨辊的机械加工性能，因此造成整体铸造磨辊耐磨性较差，使用寿命较短。为提高磨辊的使用寿命，目前采用的方法是采用铸造双金属复合磨辊，磨辊外层采用高耐磨性能的材料如高铬铸铁、镍硬铸铁等，磨辊内层采用较好韧性的材料如碳素结构钢。生产过程中先将磨辊内层，即辊芯生产出来，然后将辊芯放置在砂型内再浇注磨辊外层即外辊，使两者复合在一起，工作时外辊起耐磨作用，内层辊芯起连接支撑作用，便于进行机械加工以满足装配的要求。这种工艺生产的磨辊相对整体铸造单材质的耐磨磨辊，耐磨性能大大提高，可以满足一般情况下对耐磨磨辊使用寿命的要求。但是这种磨辊在实际使用中也存在如下的问题：由于磨辊外辊和辊芯为内外连接为一体的整体磨辊，因此在使用过程中当外辊出现磨损失效后，此时尽管辊芯没有出现损坏，仍能正常使用，但是由于两者连接为整体，仍要随外辊一起拆掉整体报废。另外磨辊在使用过程中，其磨损在高度方向上是不同的，有的情况下磨损程度的差别还非常大，一般为中间磨损非常严重，上下磨损较为轻微，在这种情况下，当磨辊中间磨损到报废的尺寸时，尽管上下磨损较小，但仍要整体报废，因此造成了非常大的浪费，为此需要采用新的工艺方法及结构解决这一问题。A large number of disc-roller mills and crushers are widely used in coal, metallurgy, mining, electric power, building materials, refractory materials, energy and other industries. Among them, the grinding roller is a main wear part. The length of life, to a certain extent, determines the economic benefits of the enterprise. The currently used grinding rollers are mainly integrally cast metal wear-resistant material grinding rollers. This kind of grinding roller is made of a single metal material, and the grinding roller needs to be machined due to installation requirements, so the hardness should not be too high, otherwise it will affect the machining performance of the grinding roller, so the overall cast grinding roller has poor wear resistance and long service life. shorter. In order to improve the service life of the grinding roller, the current method is to use the cast bimetal composite grinding roller. The outer layer of the grinding roller is made of high wear-resistant materials such as high chromium cast iron, nickel hard cast iron, etc., and the inner layer of the grinding roller is made of better toughness. materials such as carbon structural steel. In the production process, the inner layer of the grinding roller, that is, the roller core, is produced first, and then the roller core is placed in the sand mold, and then the outer layer of the grinding roller is poured, so that the two are combined together, and the outer roller plays a wear-resistant role during work. The inner roller core plays the role of connection and support, which is convenient for machining to meet the assembly requirements. Compared with the wear-resistant grinding roller of integral casting single material, the grinding roller produced by this process has greatly improved wear resistance, and can meet the requirements for the service life of wear-resistant grinding roller in general. However, this kind of grinding roller also has the following problems in actual use: because the outer roller and the roller core of the grinding roller are integral grinding rollers connected internally and externally, when the outer roller wears and fails during use, even though the roller The core is not damaged and can still be used normally, but because the two are connected as a whole, they still have to be dismantled together with the outer roller and scrapped as a whole. In addition, during the use of the grinding roller, its wear is different in the height direction. In some cases, the difference in the degree of wear is very large. Generally, the middle wear is very serious, and the upper and lower wear is relatively slight. In this case, when the grinding When the middle of the roller wears down to the scrapped size, although the upper and lower wears are small, it still has to be scrapped as a whole, thus causing a very large waste. For this reason, it is necessary to adopt a new process method and structure to solve this problem.
发明内容Contents of the invention
一种用于破碎物料的装配式耐磨磨辊，包含辊芯、耐磨辊皮、连接螺栓，所述耐磨辊皮上设有沉孔，所述辊芯上设有螺纹孔，所述连接螺栓通过耐磨辊皮上的沉孔和辊芯上的螺纹孔将耐磨辊皮连接在辊芯上。An assembled wear-resistant grinding roller for crushing materials, comprising a roller core, a wear-resistant roller skin, and connecting bolts, the wear-resistant roller skin is provided with a sink hole, and the roller core is provided with a threaded hole. The connecting bolt connects the wear-resistant roll skin to the roll core through the counterbore on the wear-resistant roll skin and the threaded hole on the roll core.
所述耐磨辊皮在磨辊高度方向上被分割成3~6圈。The wear-resistant roller skin is divided into 3 to 6 circles in the height direction of the grinding roller.
在磨辊高度方向上每一圈耐磨辊皮被分拆成3~6块。In the height direction of the grinding roller, each circle of wear-resistant roller skin is divided into 3~6 pieces.
每一块耐磨辊皮由至少三条螺栓进行连接。Each wear-resistant roll skin is connected by at least three bolts.
所述连接螺栓为内六角圆柱头螺栓。The connecting bolts are hexagon socket head cap bolts.
通过将磨辊外辊分拆成沿磨辊高度方向上和圆周方向上布置的相互分离的小块耐磨辊皮，并通过螺栓将这些耐磨辊皮连接在辊芯上，当耐磨辊皮出现磨损失效后，仅通过更换耐磨辊皮即可使磨辊继续使用，避免了因外辊磨损失效需要整体更换磨辊的问题，可以大大降低磨辊的使用成本，具有非常明显的优点。另外，由于耐磨辊皮在磨辊高度方向上分为若干圈，可以适应磨辊高度方向上磨损程度不一的工况，在磨辊中间部位磨损严重需要报废的情况下，仅通过更换磨辊中间的一圈或数圈耐磨辊皮即可使磨辊继续使用，避免了因磨辊外辊局部磨损需要全部更换磨辊外辊的问题，对降低磨辊的使用成本也非常有利。By splitting the outer roll of the grinding roller into small pieces of wear-resistant roller skins arranged along the height direction and the circumferential direction of the grinding roller, and connecting these wear-resistant roller skins to the core through bolts, when the wear-resistant roller After the leather wears out, the grinding roller can continue to be used only by replacing the wear-resistant roller skin, which avoids the need to replace the grinding roller as a whole due to the wear and tear of the outer roller, and can greatly reduce the use cost of the grinding roller, which has very obvious advantages . In addition, since the wear-resistant roller skin is divided into several circles in the height direction of the grinding roller, it can adapt to the working conditions of different wear degrees in the height direction of the grinding roller. One or more wear-resistant roller skins in the middle of the roller can make the grinding roller continue to use, avoiding the problem of replacing all the outer rollers of the grinding roller due to partial wear of the outer roller of the grinding roller, and it is also very beneficial to reduce the use cost of the grinding roller.
在辊芯上设置螺纹孔，在耐磨辊皮上设置沉孔，连接螺栓采用内六角圆柱头螺栓，便于耐磨辊皮的安装及拆卸，在设备的维修便利性方面具有明显的优点。Threaded holes are set on the roll core, counterbore holes are set on the wear-resistant roll skin, and the connecting bolts are hexagon socket head bolts, which are convenient for the installation and disassembly of the wear-resistant roll skin, and have obvious advantages in terms of equipment maintenance convenience.
由于耐磨辊皮主要靠连接螺栓固定在辊芯上，因此螺栓连接的可靠性对磨辊的正常工作有着非常重要的影响。为了保证连接的可靠性，每一块耐磨辊皮至少使用三条连接螺栓，这样在磨辊工作过程中，即使有一条连接螺栓出现问题，仍能保证耐磨辊皮的可靠工作。Since the wear-resistant roll skin is mainly fixed on the roll core by connecting bolts, the reliability of the bolt connection has a very important influence on the normal operation of the grinding roll. In order to ensure the reliability of the connection, at least three connecting bolts are used for each wear-resistant roller skin, so that even if there is a problem with one of the connecting bolts during the working process of the grinding roller, the reliable work of the wear-resistant roller skin can still be guaranteed.
在耐磨辊皮上设置沉孔，并采用内六角圆柱头螺栓进行连接，既可方便耐磨辊皮的安装也可以避免安装拆卸时扳手空间不足的问题。The counterbore is provided on the wear-resistant roller skin, and hexagon socket head bolts are used for connection, which can not only facilitate the installation of the wear-resistant roller skin, but also avoid the problem of insufficient wrench space during installation and disassembly.
附图说明Description of drawings
附图所示为本实用新型具体实施例的结构及安装图，其中图1为图2中C-C位置的剖视图，图2为图1中B-B的剖视图。The accompanying drawings show the structure and installation diagrams of specific embodiments of the present invention, wherein Fig. 1 is a sectional view of position C-C in Fig. 2 , and Fig. 2 is a sectional view of B-B in Fig. 1 .
具体实施方式Detailed ways
在附图1和2所示的实施例中，各零件序号意义如下：序号1为耐磨辊皮，序号2为连接螺栓，序号3为辊芯，序号4为耐磨辊皮上的沉孔，序号5为辊芯上的螺纹孔。In the embodiment shown in accompanying drawings 1 and 2, the meanings of the serial numbers of each part are as follows: serial number 1 is the wear-resistant roller skin, serial number 2 is the connecting bolt, serial number 3 is the roller core, and serial number 4 is the counterbore on the wear-resistant roller skin , No. 5 is the threaded hole on the roller core.
磨辊生产时，先将辊芯铸造出来，辊芯材质选用低碳钢。经过清理后进行加工，并在对应于耐磨辊皮的辊芯上相应位置加工螺纹孔。按规定外形铸造耐磨辊皮，耐磨辊皮采用高铬铸铁材质制作，铸造完成后，进行相应的热处理，提高耐磨辊皮的硬度。热处理完成后，采用内六角圆柱头螺栓将其装配在辊芯上，耐磨辊皮沿磨辊高度方向分为3圈，每一圈分为4块，每一块辊皮采用3条连接螺栓进行连接。装配完成后，安装在破碎设备上使用。在使用过程中，当中间的耐磨辊皮磨损后，将其拆卸，更换新的耐磨辊皮，上下辊皮不更换，因此可以大大降低磨辊的使用成本。如果高度方向上的耐磨辊皮磨损基本一致，则一次性更换所有耐磨辊皮，但辊芯仍可机械使用，也避免了由于外辊磨损失效带来的需要整体更换磨辊的问题。When the grinding roller is produced, the roller core is first cast out, and the material of the roller core is low carbon steel. After cleaning, it is processed, and threaded holes are processed at corresponding positions on the roller core corresponding to the wear-resistant roller skin. The wear-resistant roller skin is cast according to the specified shape, and the wear-resistant roller skin is made of high-chromium cast iron. After the casting is completed, the corresponding heat treatment is carried out to improve the hardness of the wear-resistant roller skin. After the heat treatment is completed, it is assembled on the roller core with hexagon socket head bolts. The wear-resistant roller skin is divided into 3 circles along the height direction of the grinding roller, and each circle is divided into 4 pieces. Each piece of roller skin is fixed with 3 connecting bolts. connect. After the assembly is completed, it is installed on the crushing equipment for use. During use, when the wear-resistant roller skin in the middle is worn out, it is disassembled and replaced with a new wear-resistant roller skin, and the upper and lower roller skins are not replaced, so the use cost of the grinding roller can be greatly reduced. If the wear of the wear-resistant roller skins in the height direction is basically the same, all the wear-resistant roller skins can be replaced at one time, but the roller core can still be used mechanically, and the problem of the need to replace the grinding roller as a whole due to the wear and tear of the outer roller is avoided.
Claims (5)
Priority Applications (1)
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| CN201720960732.4U CN207187849U (en) | 2017-08-03 | 2017-08-03 | Assembled wear-resistant grinding roller |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720960732.4U CN207187849U (en) | 2017-08-03 | 2017-08-03 | Assembled wear-resistant grinding roller |
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| CN207187849U true CN207187849U (en) | 2018-04-06 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108772136A (en) * | 2018-07-06 | 2018-11-09 | 郑州机械研究所有限公司 | A kind of dismountable wear resistant roll of wearing layer |
| CN109909011A (en) * | 2019-03-12 | 2019-06-21 | 中钢集团安徽天源科技股份有限公司 | A kind of roller mill column head type alloy block structure and production method |
| CN111590053A (en) * | 2020-04-22 | 2020-08-28 | 南通高欣耐磨科技股份有限公司 | Manufacturing method of easily-machined and repairable high-wear-resistance metal ceramic composite grinding roller |
| CN114714046A (en) * | 2021-07-12 | 2022-07-08 | 南通高欣耐磨科技股份有限公司 | Combined grinding roller with replaceable wear-resistant layer and manufacturing method thereof |
-
2017
- 2017-08-03 CN CN201720960732.4U patent/CN207187849U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108772136A (en) * | 2018-07-06 | 2018-11-09 | 郑州机械研究所有限公司 | A kind of dismountable wear resistant roll of wearing layer |
| CN109909011A (en) * | 2019-03-12 | 2019-06-21 | 中钢集团安徽天源科技股份有限公司 | A kind of roller mill column head type alloy block structure and production method |
| CN111590053A (en) * | 2020-04-22 | 2020-08-28 | 南通高欣耐磨科技股份有限公司 | Manufacturing method of easily-machined and repairable high-wear-resistance metal ceramic composite grinding roller |
| CN111590053B (en) * | 2020-04-22 | 2021-09-03 | 南通高欣耐磨科技股份有限公司 | Manufacturing method of easily-machined and repairable high-wear-resistance metal ceramic composite grinding roller |
| CN114714046A (en) * | 2021-07-12 | 2022-07-08 | 南通高欣耐磨科技股份有限公司 | Combined grinding roller with replaceable wear-resistant layer and manufacturing method thereof |
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