Bearing bush, sliding bearing and filter

Abstract

The utility model relates to the technical field of blast furnace metallurgical equipment, in particular to a bearing bush, a sliding bearing and a filter. The embodiment of the utility model provides a bearing bush, a sliding bearing and a filter, an oil duct is formed in the bearing bush, the oil duct comprises a plurality of first channels and a plurality of second channels, the first channels are arranged at equal intervals in the circumferential direction of the bearing bush, and the second channels are arranged at equal intervals in the axial direction of the bearing bush; and each first channel is communicated with each second channel. According to the bearing bush, the sliding bearing and the filter, lubricating oil can be evenly distributed in the bearing bush, the situation that local lubrication of the bearing bush is poor is reduced, and the service life of the bearing bush is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of blast furnace metallurgical equipment, in particular to a shaft bearing, a sliding bearing and a filter press. Background Art

[0002] In the related art, the oil passage distribution of the shaft bearing in the sliding bearing is not conducive to the uniform internal distribution of the lubricating oil, resulting in poor local lubrication of the shaft bearing, thus easily causing abnormal wear of the shaft bearing and reducing the service life of the shaft bearing. Summary of the Utility Model

[0003] This application provides a shaft bearing, a sliding bearing and a filter press, which solves the technical problem that in the related art, the oil passage distribution of the shaft bearing in the sliding bearing is not conducive to the uniform internal distribution of the lubricating oil, resulting in poor local lubrication of the shaft bearing, thus easily causing abnormal wear of the shaft bearing and reducing the service life of the shaft bearing.

[0004] In a first aspect, an embodiment of this application provides a shaft bearing. An oil passage is provided inside the shaft bearing. The oil passage includes a plurality of first channels and a plurality of second channels. The plurality of first channels are arranged at equal intervals along the circumferential direction of the shaft bearing, and the plurality of second channels are arranged at equal intervals along the axial direction of the shaft bearing. Moreover, each first channel communicates with each second channel, and the second channel is annular.

[0005] In some embodiments, the first channel is perpendicular to the second channel.

[0006] In some embodiments, the depth of the first channel and the second channel can be 6 mm - 8 mm, and the width can be 8 mm - 10 mm.

[0007] In some embodiments, the shaft bearing further has at least two oil injection holes. The at least two oil injection holes are evenly distributed along the circumferential direction of the shaft bearing, and the oil injection holes communicate with one of the first channels or the second channels.

[0008] In some embodiments, the shaft bearing is a copper alloy shaft bearing.

[0009] In a second aspect, an embodiment of this application provides a sliding bearing. The sliding bearing includes a bearing housing and the shaft bearing as described above. The shaft bearing is installed in the bearing housing.

[0010] In a third aspect, an embodiment of this application provides a filter press. The filter press includes a machine body, a slag discharge pipe, a hollow shaft and the sliding bearing as described above. The slag discharge pipe is arranged in the machine body and has end pipes extending out of the machine body at both ends. The hollow shaft is sleeved on the end pipes, and the sliding bearing is assembled on the hollow shaft.

[0011] In some embodiments, the sliding bearing further includes a first sealing assembly and a second sealing assembly. The first sealing assembly and the second sealing assembly are respectively disposed on two sides of the bearing housing. The first sealing assembly is disposed on the side of the bearing housing close to the machine body and is disposed on the hollow shaft, and the second sealing assembly is disposed on the slag discharge pipe.

[0012] In some embodiments, the first sealing assembly includes a first sealing end cover and a skeleton oil seal. The sealing end cover is installed on the bearing housing. An installation groove is formed in the sealing end cover. The skeleton oil seal is disposed in the installation groove and contacts the hollow shaft.

[0013] In some embodiments, the second sealing assembly includes a second sealing end cover and an O-ring. The second sealing end cover is installed on the slag discharge pipe, and the O-ring is disposed between the second sealing end cover and the O-ring.

[0014] The beneficial effects of the present application are as follows:

[0015] For a shaft tile, a sliding bearing and a filter provided by the present application, since the oil passages in the shaft tile include a plurality of first passages and a plurality of second passages, the plurality of first passages are arranged at equal intervals along the circumferential direction of the shaft tile, and the plurality of second passages are arranged at equal intervals along the axial direction of the shaft tile, that is, a plurality of passages are provided along both the radial and axial directions of the shaft tile, so that the distribution of the oil passages in the shaft tile is more uniform, and each first passage is communicated with each second passage. Therefore, when lubricating oil is injected into the oil passages, the lubricating oil can be evenly distributed inside the shaft tile, reducing the situation of poor local lubrication of the shaft tile and improving the service life of the shaft tile. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention.

[0017] Figure 1 It is a schematic diagram of the oil passage of the shaft tile in the related art.

[0018] Figure 2 It is a schematic diagram of the structure of the shaft tile in the embodiment of the present application.

[0019] Figure 3 It is a schematic diagram of the structure of the sliding bearing in the embodiment of the present application.

[0020] Figure 4 It is a schematic diagram of the structure of the filter in the embodiment of the present application.

[0021] Description of the reference numerals:

[0022] 120’-bearing shell, 130’-oil passage, 1-filter, 10-body, 20-slag discharge pipe, 30-hollow shaft, 100-sliding bearing, 110-bearing housing, 120-bearing shell, 130-oil passage, 131-first passage, 132-second passage, 133-oil injection hole, 140-first sealing assembly, 141-first sealing end cover, 142-skeleton oil seal, 150-second sealing assembly, 151-second sealing end cover, 152-O-ring. Detailed implementation manners

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0024] It should be noted that all the directional indications in the embodiments of the present invention are only used to explain the relative positional relationship and movement conditions between components in a specific posture. If this specific posture changes, the directional indications will also change accordingly.

[0025] In the present invention, unless otherwise clearly defined and limited, terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0026] In addition, in the present invention, descriptions such as "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0027] The water slagging process of blast furnaces usually adopts the Minter method. The filter press is an important part of the slag treatment equipment. Its main function is to perform secondary filtration on the recycled slag water, reduce the suspended water slag in the circulating water, and create favorable conditions for the operation of equipment such as the back-end slag pump. The operating condition of the slag filter press is heavy load and low speed. The whole machine of the filter press weighs about 10 tons, and the working speed is 6 - 7 revolutions per minute.

[0028] In the related art, sliding bearings are provided on both sides of the filter press. Please refer to Figure 1 , in the related art, the oil passage 130 of the bearing bush 120' in the sliding bearing is diamond-shaped. This distribution form of the oil passage 130 is not conducive to the uniform internal distribution of lubricating oil, resulting in poor local lubrication of the bearing bush 120', thus easily causing abnormal wear of the bearing bush 120', reducing the service life of the bearing bush 120', and affecting the normal operation of the filter press.

[0029] In order to improve the above technical problems to a certain extent, the embodiments of the present application provide a bearing bush, a sliding bearing, and a filter press, which can make the lubricating oil evenly distributed inside the bearing bush, reduce the situation of poor local lubrication of the bearing bush, and improve the service life of the bearing bush.

[0030] The embodiments of the present application will be described below with reference to the accompanying drawings:

[0031] Please refer to Figure 2 , the embodiments of the present application provide a bearing bush 120. An oil passage 130 is opened inside the bearing bush 120. The oil passage 130 includes a plurality of first channels 131 and a plurality of second channels 132. The plurality of first channels 131 are arranged at equal intervals along the circumferential direction of the bearing bush 120, and the plurality of second channels 132 are arranged at equal intervals along the axial direction of the bearing bush 120. Moreover, each first channel 131 and each second channel 132 are connected to each other, and the second channel 132 is annular.

[0032] Since the plurality of first channels 131 are arranged at equal intervals along the circumferential direction of the bearing bush 120, and the plurality of second channels 132 are arranged at equal intervals along the axial direction of the bearing bush 120, that is, a plurality of channels are opened along both the radial and axial directions of the bearing bush 120, making the distribution of the oil passage 130 in the bearing bush 120 more uniform. Moreover, each first channel 131 and each second channel 132 are connected to each other, that is, each first channel 131 and each second channel 132 are arranged in a staggered manner. Therefore, when the lubricating oil is injected into the oil passage 130, the lubricating oil can be evenly distributed inside the bearing bush 120, reducing the situation of poor local lubrication of the bearing bush 120 and improving the service life of the bearing bush 120.

[0033] The bearing shell 120 is annular. Since multiple first channels 131 are arranged at equal intervals along the circumferential direction of the bearing shell 120, and multiple second channels 132 are arranged at equal intervals along the axial direction of the bearing shell 120, that is, the first channels 131 are linear and the second channels 132 are annular. The first channels 131 can be straight or curved, and there is no limitation on this. Of course, the bearing shell 120 includes an integral type and a split type. When the bearing shell 120 is of the split type, the second channels 132 are semi-annular. Specifically, the depth of the first channels 131 and the second channels 132 can be 6 mm - 8 mm, and the width can be 8 mm - 10 mm to improve the lubrication effect of the bearing.

[0034] In some embodiments, multiple first channels 131 can be arranged in parallel, and multiple second channels 132 can also be arranged in parallel, thereby further improving the uniformity of the distribution of the oil channels 130 in the bearing shell 120, making the lubricating oil lubricate more evenly, reducing the situation of poor local lubrication of the bearing shell 120, and improving the service life of the bearing shell 120. There is no limitation on the distance between two adjacent first channels 131 or two adjacent second channels 132. The smaller the distance, the denser it is and the stronger the lubrication effect. The larger the distance, the sparser it is and the weaker the lubrication effect. It can be set according to the actual situation.

[0035] In some embodiments, the first channels 131 are arranged perpendicular to the second channels 132.

[0036] The first channels 131 can be arranged along the axial direction of the bearing shell 120, and the second channels 132 are perpendicular to the first channels 131, that is, multiple first channels 131 and multiple second channels 132 form a "well" shape. Since the first channels 131 can be directly machined along the axial direction of the bearing shell 120, it is convenient to position the first channels 131, and the machining convenience can be improved.

[0037] Of course, in other embodiments, the first channels 131 can also be arranged obliquely with respect to the axial direction of the bearing shell 120, and there is no limitation on this.

[0038] In some embodiments, the bearing shell 120 further has at least two oil injection holes 133, and the at least two oil injection holes 133 are evenly distributed along the circumferential direction of the bearing shell 120, and the oil injection holes 133 are communicated with one of the first channels 131 or the second channels 132.

[0039] In the related art, the sliding bearing 100 is lubricated by single-sided oil injection at the top, that is, there is only one oil injection hole 133. After wear occurs at the lower part of the bearing shell 120, the lubrication effect of top oil injection is not ideal. Therefore, in the embodiments of the present application, the bearing shell 120 has at least two oil injection holes 133, that is, the bearing shell 120 has two or more oil injection holes 133 to improve the lubrication effect, and the at least two oil injection holes 133 are evenly distributed along the circumferential direction of the bearing shell 120, thereby further improving the lubrication uniformity.

[0040] Specifically, the bearing bush 120 has two oil injection holes 133, and the two oil injection holes 133 are symmetrically distributed.

[0041] In some embodiments, the bearing bush 120 is a copper alloy bearing bush 120.

[0042] In the related art, the material of the copper bush is brass, which has low hardness and poor wear resistance and is not suitable for the on-site working conditions. However, in the embodiments of the present application, the material of the bearing bush 120 is copper alloy, which can improve the strength and wear resistance of the copper bush, thereby further increasing the service life of the bearing bush 120.

[0043] Based on the same inventive concept, please refer to Figure 3 , the embodiments of the present application provide a sliding bearing 100, which includes a bearing housing 110 and the above-mentioned bearing bush 120, and the bearing bush 120 is installed in the bearing housing 110. The beneficial effects of the sliding bearing 100 provided in the embodiments of the present application are the same as those of the bearing bush 120 described above, and will not be elaborated here.

[0044] Based on the same inventive concept, please refer to Figure 3 and Figure 4 , the embodiments of the present application provide a filter 1, which includes a machine body 10, a slag discharge pipe 20, a hollow shaft 30, and the sliding bearing 100 as described above. The slag discharge pipe 20 is arranged in the machine body 10 and has end pipes extending out of the machine body 10 at both ends. The hollow shaft 30 is sleeved on the end pipes, and the sliding bearing 100 is assembled on the hollow shaft 30. The beneficial effects of the filter 1 provided in the embodiments of the present application are the same as those of the bearing bush 120 described above, and will not be elaborated here.

[0045] In some embodiments, the sliding bearing 100 further includes a first sealing assembly 140 and a second sealing assembly 150. The first sealing assembly 140 and the second sealing assembly 150 are respectively arranged on both sides of the bearing housing 110. The first sealing assembly 140 is arranged on the side of the bearing housing 110 close to the machine body 10, and the first sealing assembly 140 is arranged on the hollow shaft 30, and the second sealing assembly 150 is arranged on the slag discharge pipe 20.

[0046] It should be noted that the filter 1 provided in the embodiments of the present application further includes a gear ring, a gear and a driving mechanism. The gear ring is arranged outside the machine body 10 and coaxially with the machine body 10. The gear ring meshes with the gear, and the driving mechanism is used to drive the gear to rotate, so as to drive the gear ring to rotate, thereby driving the machine body 10 to rotate to achieve the filtering function. Since the slag discharge pipe 20 is arranged in the machine body 10 and both ends have end pipes extending out of the machine body 10, and the hollow shaft 30 is sleeved on the end pipes, when the machine body 10 rotates, the hollow shaft 30 will also rotate accordingly. Therefore, the first sealing assembly 140 is a dynamic seal, and the second sealing assembly 150 is a static seal. The sealing requirement of the first sealing assembly 140 is greater than that of the second sealing assembly 150.

[0047] In some embodiments, the first sealing assembly 140 includes a first sealing end cover 141 and a skeleton oil seal 142. The sealing end cover is installed on the bearing seat 110. An installation groove is formed on the sealing end cover, and the skeleton oil seal 142 is arranged in the installation groove and contacts the hollow shaft 30.

[0048] In the related art, the seal at the end of the bearing is a sealing rubber ring, which is prone to wear and failure. When water slag enters the inside of the sliding bearing 100, it is easy to cause bearing failures. During the operation of the filter 1, due to the constraints of harsh conditions such as on-site water slag and steam, the failure rate of the sliding bearing 100 is relatively high, which restricts the smooth operation of blast furnace production, increases the on-site equipment maintenance volume, and at the same time increases the equipment maintenance spare parts cost. In the present application, since the skeleton oil seal 142 is used to seal the side of the bearing seat 110 close to the machine body 10, impurities inside the sliding bearing 100 can be reduced, the operating conditions inside the sliding bearing 100 can be improved, and the service life of the sliding bearing 100 can be effectively extended.

[0049] In some embodiments, the second sealing assembly 150 includes a second sealing end cover 151 and an O-ring 152. The second sealing end cover 151 is installed on the slag discharge pipe 20, and the O-ring 152 is arranged between the second sealing end cover 151 and the O-ring 152. Since the second sealing assembly 150 is a static seal, using the O-ring 152 can achieve a good sealing effect. Of course, the second sealing assembly 150 can also adopt the same structure as the first sealing assembly 140, and no limitation is made thereto.

[0050] Although the preferred embodiments of the present invention have been described, those skilled in the art can make additional changes and modifications to these embodiments once they know the basic creative concepts. Therefore, the appended claims are intended to be construed to include the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0051] Obviously, those skilled in the art can make various changes and modifications to the present utility model without departing from the spirit and scope of the present utility model. Thus, if these modifications and variations of the present utility model fall within the scope of the claims of the present utility model and its equivalent technologies, the present utility model also intends to include these modifications and variations.

Claims

1. A filter, characterized in that, The filter includes a machine body, a slag discharge pipe, a hollow shaft, and a sliding bearing. The sliding bearing includes a bearing seat and a bearing bush. The bearing bush is installed in the bearing seat. The slag discharge pipe is arranged in the machine body and has end pipes extending out of the machine body at both ends. The hollow shaft is sleeved on the end pipes, and the sliding bearing is assembled on the hollow shaft; Wherein, an oil passage is formed inside the bearing bush. The oil passage includes a plurality of first channels and a plurality of second channels. The plurality of first channels are arranged at equal intervals along the circumferential direction of the bearing bush, and the plurality of second channels are arranged at equal intervals along the axial direction of the bearing bush. Each first channel and each second channel are communicated with each other, and the second channel is annular.

2. The filter press according to claim 1, wherein, The first channel is perpendicular to the second channel.

3. The filter according to claim 1, characterized in that, The depth of the first channel and the second channel is 6 mm - 8 mm, and the width is 8 mm - 10 mm.

4. The filter according to any one of claims 1 to 3, characterized in that, The bearing bush further has at least two oil injection holes. The at least two oil injection holes are evenly distributed along the circumferential direction of the bearing bush, and the oil injection holes are communicated with one of the first channels or the second channels.

5. The filter according to any one of claims 1 to 3, characterized in that, The bearing bush is a copper alloy bearing bush.

6. The filter according to claim 1, wherein The sliding bearing further includes a first sealing assembly and a second sealing assembly. The first sealing assembly and the second sealing assembly are respectively arranged on both sides of the bearing seat. The first sealing assembly is arranged on the side of the bearing seat close to the machine body and is arranged on the hollow shaft, and the second sealing assembly is arranged on the slag discharge pipe.

7. The filter according to claim 6, characterized in that, The first sealing assembly includes a first sealing end cover and a skeleton oil seal. The sealing end cover is installed on the bearing seat. An installation groove is formed on the sealing end cover, and the skeleton oil seal is arranged in the installation groove and contacts the hollow shaft.

8. The filter according to claim 6, characterized in that, The second sealing assembly includes a second sealing end cover and an O-ring. The second sealing end cover is installed on the slag discharge pipe, and the O-ring is arranged between the second sealing end cover and the O-ring.

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