CN113879776A - Scraper conveyor, scraper and rolling body - Google Patents
Scraper conveyor, scraper and rolling body Download PDFInfo
- Publication number
- CN113879776A CN113879776A CN202111234483.8A CN202111234483A CN113879776A CN 113879776 A CN113879776 A CN 113879776A CN 202111234483 A CN202111234483 A CN 202111234483A CN 113879776 A CN113879776 A CN 113879776A
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- Prior art keywords
- scraper
- sewage
- hole
- shell
- ball
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- 238000005096 rolling process Methods 0.000 title claims abstract description 59
- 239000010865 sewage Substances 0.000 claims abstract description 111
- 238000009434 installation Methods 0.000 claims abstract description 42
- 239000000463 material Substances 0.000 claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 33
- 238000005507 spraying Methods 0.000 claims abstract description 21
- 239000007921 spray Substances 0.000 claims abstract description 16
- 239000002699 waste material Substances 0.000 claims description 17
- 238000005192 partition Methods 0.000 claims description 11
- 230000005484 gravity Effects 0.000 claims description 8
- 238000000926 separation method Methods 0.000 claims 1
- 239000012535 impurity Substances 0.000 description 61
- 238000007599 discharging Methods 0.000 description 13
- 238000000034 method Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- 238000007789 sealing Methods 0.000 description 7
- 239000003245 coal Substances 0.000 description 6
- 238000007865 diluting Methods 0.000 description 6
- 239000012530 fluid Substances 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 230000009471 action Effects 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 4
- 239000008187 granular material Substances 0.000 description 4
- 230000000717 retained effect Effects 0.000 description 3
- 230000007306 turnover Effects 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G19/00—Conveyors comprising an impeller or a series of impellers carried by an endless traction element and arranged to move articles or materials over a supporting surface or underlying material, e.g. endless scraper conveyors
- B65G19/18—Details
- B65G19/22—Impellers, e.g. push-plates, scrapers; Guiding means therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G19/00—Conveyors comprising an impeller or a series of impellers carried by an endless traction element and arranged to move articles or materials over a supporting surface or underlying material, e.g. endless scraper conveyors
- B65G19/18—Details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G45/00—Lubricating, cleaning, or clearing devices
- B65G45/10—Cleaning devices
- B65G45/22—Cleaning devices comprising fluid applying means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cleaning By Liquid Or Steam (AREA)
- Road Paving Machines (AREA)
Abstract
The invention relates to the technical field of material conveying devices, in particular to a scraper conveyor, a scraper and a rolling body. The scraper conveyor comprises a material conveying groove, an annular chain, a scraper body, a rolling body and a spraying device. The annular chain can circularly move relative to the material conveying groove; the scraper body is arranged on the annular chain, a fixing hole and a sewage discharge hole which are communicated with each other are formed in the scraper body, and the fixing hole and the sewage discharge hole penetrate through the scraper body; the rolling body is arranged in the fixed hole and comprises a shell and a ball, an installation cavity is formed in the shell, the ball is arranged in the installation cavity, part of the ball extends out of the bottom side of the shell, and the shell is provided with a sewage outlet hole communicated with the installation cavity and the sewage outlet hole; the spraying device is arranged at the machine head and/or the machine tail, and when the scraper body is turned at the machine head or the machine tail, the spraying device can spray towards the sewage discharge hole of the scraper body. The invention can utilize water flow to clean the scraper body and the rolling body, reduce the clamping of the ball in the mounting cavity and improve the rolling performance of the ball.
Description
Technical Field
The invention relates to the technical field of material conveying devices, in particular to a scraper conveyor, a scraper and a rolling body.
Background
A scraper conveyor is a conveying device for conveying coal and materials, and generally includes an annular chain and scrapers mounted on the annular chain, wherein the annular chain can drive the scrapers to move on a material conveying groove of the scraper conveyor. For the friction loss that reduces scraper blade and material conveyer trough, the bottom of current scraper blade is equipped with the rolling element, and the rolling element includes the shell and can be in the rolling ball of shell, and the ball has the part to stretch out the bottom side of shell to can roll on the material conveyer trough, change the sliding friction between scraper blade and the material conveyer trough into rolling friction, and then reduce the running resistance of scraper blade, and reduce wearing and tearing.
However, the scraper conveyor is usually used in coal mines and other scenes with poor environmental cleanliness, impurities such as coal dust and sludge usually exist on the material conveying groove, and the impurities easily enter the shell during the operation of the scraper. After long-time use, impurities accumulated in the shell can increase the rolling resistance of the balls, and even cause the balls to be clamped in the shell and difficult to rotate, so that the normal use of the equipment is influenced.
Disclosure of Invention
In order to solve the technical problems, the invention provides a scraper conveyor, a scraper and a rolling body, which can clean a scraper body and the rolling body by using water flow, reduce the clamping of balls in an installation cavity, improve the rolling performance of the balls and effectively solve the problems in the prior art.
In order to solve the problems, the invention provides a scraper conveyor which comprises a material conveying groove, an annular chain, a scraper body, a rolling body and a spraying device. The annular chain can circularly move relative to the material conveying groove; the scraper body is arranged on the annular chain, a fixing hole and a sewage discharge hole which are communicated with each other are formed in the scraper body, and the fixing hole and the sewage discharge hole penetrate through the scraper body; the rolling body is arranged in the fixed hole and comprises a shell and a ball, an installation cavity is formed in the shell, the ball is arranged in the installation cavity, part of the ball extends out of the bottom side of the shell, and the shell is provided with a sewage outlet hole communicated with the installation cavity and the sewage outlet hole; the spraying device is arranged at the machine head and/or the machine tail, and when the scraper body is turned at the machine head or the machine tail, the spraying device can spray towards the sewage discharge hole of the scraper body.
Further, the scraper conveyor also comprises a partition plate, and the partition plate can form a sewage discharge channel communicated with the sewage discharge hole and the outside.
Further, the division board is the blowdown lid, and the blowdown lid has the link that links to each other with the scraper blade body to rotate and open or close the blowhole, and when the upset of scraper blade body was down, the blowdown lid can rotate under the effect of gravity and open the blowhole, in order to form sewage pipes.
Furthermore, the sewage discharge cover is provided with a water inlet communicated with the sewage discharge hole.
Further, the partition plate is a sewage discharge filter screen, the sewage discharge filter screen is installed in the sewage discharge hole, a sewage discharge channel is formed by meshes of the sewage discharge filter screen, and the sewage discharge filter screen separates the sewage discharge hole and the outer side of the scraper body.
Furthermore, an annular convex rib is formed at the edge of the sewage discharge filter screen, and an annular groove for the annular convex rib to be inserted in an interference manner is formed on the inner wall of the sewage discharge hole.
Further, the distance between the top surface of the sewage discharge filter screen and the top edge of the sewage discharge hole is not less than 3 mm.
Furthermore, the bottom side of the installation cavity is provided with a wear-resistant sealing ring, and the cavity wall of the installation cavity and the ball clamp the wear-resistant sealing ring.
Furthermore, the spraying device comprises a water outlet pipe and a water spraying head arranged on the water outlet pipe, and the water spraying head faces the sewage discharge hole.
The invention also provides a scraper which comprises a scraper body and a rolling body. The scraper body is internally provided with a fixing hole and a sewage discharge hole which are communicated with each other, and the fixing hole and the sewage discharge hole penetrate through the scraper body; the rolling element is installed in the fixed orifices, and the rolling element includes shell and ball, the inside installation cavity that forms of shell, and the ball is installed in the installation cavity, and the ball has the bottom side that the part stretches out the shell, and the shell has the dirty hole that goes out of intercommunication installation cavity and blowoff hole.
The invention also provides a rolling body which comprises a shell, a ball and a sewage discharge filter screen. The shell is internally provided with an installation cavity and is provided with a sewage outlet hole for communicating the installation cavity with the outside; the ball is arranged in the mounting cavity, and part of the ball extends out of the bottom side of the shell; the blowdown filter screen is installed in the shell, and the outside of dirty hole and shell is separated to the blowdown filter screen.
The scraper blade has the beneficial effects that the scraper blade body starts to turn over when moving to the machine head or the machine tail, and the spraying device can spray the sewage discharge holes of the scraper blade body. The sprayed water flow can dilute impurities in the scraper blade body and the rolling body, so that the impurities are in a fluid state, and the fluid impurities are more easily discharged from the sewage discharge hole. And, under hydraulic effect, the impurity in scraper blade body and the roll can be washed out by rivers, reduces the impurity card in scraper blade body and roll. After scraper blade body and rolling element are through rivers washing, can reduce the ball card in the installation cavity, improve the rolling performance of ball, increase of service life. In addition, after the cleaning, a small amount of moisture can be retained in the scraper body and the rolling body, and when materials are conveyed, impurities entering the installation cavity are mixed with the moisture, so that the flowability of the impurities can be improved, and the resistance of the impurities to the balls is reduced. The invention effectively solves the problems in the prior art.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a partial perspective view of a scraper conveyor according to an embodiment of the present invention.
Fig. 2 is a schematic partial cross-sectional view of a scraper conveyor according to an embodiment of the invention.
FIG. 3 is a schematic structural diagram of a squeegee according to an embodiment of the invention.
FIG. 4 is a schematic partial cross-sectional view of a squeegee body according to an embodiment of the invention.
FIG. 5 is a schematic partial cross-sectional view of a squeegee according to an embodiment of the invention.
FIG. 6 is a schematic top view of a scraper according to an embodiment of the present invention.
Fig. 7 is a schematic structural view of a drain cover in a closed state according to an embodiment of the present invention.
Fig. 8 is a schematic structural view illustrating an opened state of the sewage discharge cover according to an embodiment of the present invention.
FIG. 9 is a schematic top view of a squeegee in accordance with another embodiment of the invention.
FIG. 10 is a schematic view of a scraper in a partial cross section according to another embodiment of the present invention.
Fig. 11 is a schematic view of the structure of a rolling element in another embodiment of the present invention.
Wherein: 1. a material conveying groove; 2. an endless chain; 3. a squeegee body; 31. a fixing hole; 32. a sewage draining hole; 4. a rolling body; 41. a housing; 411. a mounting cavity; 412. a sewage outlet; 42. a ball bearing; 5. a spraying device; 51. a water outlet pipe; 511. a sprinkler head; 6. a sewage draining cover; 61. a connecting end; 62. a water inlet hole; 7. a sewage discharge filter screen; 8. wear-resisting sealing washer.
Detailed Description
In order to more clearly explain the overall concept of the present invention, the following detailed description is given by way of example in conjunction with the accompanying drawings.
It should be noted that in the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the scope of the present invention is not limited by the specific embodiments disclosed below.
In addition, in the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate orientations and positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. However, the direct connection means that the two bodies are not connected to each other by the intermediate structure but connected to each other by the connecting structure to form a whole. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
In the present invention, as shown in fig. 1 to 10, there is provided a scraper conveyor, including a material conveying trough 1, an endless chain 2, a scraper body 3, rolling bodies 4, and a spray device 5. The annular chain 2 can circularly move relative to the material conveying groove 1; the scraper body 3 is arranged on the annular chain 2, a fixing hole 31 and a sewage discharge hole 32 which are communicated with each other are arranged in the scraper body 3, and the fixing hole 31 and the sewage discharge hole 32 penetrate through the scraper body 3; the rolling body 4 is arranged in the fixing hole 31, the rolling body 4 comprises a shell 41 and a ball 42, a mounting cavity 411 is formed in the shell 41, the ball 42 is arranged in the mounting cavity 411, the ball 42 partially extends out of the bottom side of the shell 41, and the shell 41 is provided with a sewage outlet 412 which is communicated with the mounting cavity 411 and the sewage outlet 32; the spraying device 5 is arranged at the machine head and/or the machine tail, and when the scraper blade body 3 is turned at the machine head or the machine tail, the spraying device 5 can spray towards the sewage discharge hole 32 of the scraper blade body 3.
The scraper conveyor of the invention starts to turn over when the scraper body 3 moves to the head or the tail, and the spray device 5 can spray the sewage discharge holes 32 of the scraper body 3. The sprayed water flows into the mounting cavity 411 through the sewage discharge hole 32 and the sewage discharge hole 412 to dilute impurities inside the scraper body 3 and the rolling body 4, so that the impurities are in a fluid state, and the fluid impurities are more easily discharged from the sewage discharge hole 32. Especially when scraper blade body 3 overturns downwards, the impurity after diluting can discharge under the action of gravity, and scraper blade body 3 can produce the vibration in the operation process moreover, and under the vibration effect, the impurity after diluting is changeed in discharging by blowoff hole 32.
In addition, under the effect of water pressure, softer impurity is easily broken into finer granule by the impact force of rivers, is difficult for blocking in installation cavity 411, outlet 412 and blowoff hole 32, discharges more easily. And the impact force of rivers can produce thrust to impurity, and impurity can discharge under thrust to further reduce the impurity card in scraper blade body 3 and rolling element 4.
After the scraper blade body 3 and the rolling body 4 are cleaned by water flow, the phenomenon that the balls 42 are clamped in the mounting cavity 411 can be reduced, the rolling performance of the balls 42 is improved, and the service life is prolonged. In addition, after cleaning, a small amount of moisture is retained in the scraper body 3 and the rolling body 4, and when materials are conveyed, impurities entering the mounting cavity 411 are mixed with the moisture, so that the flowability of the impurities can be improved, and the resistance of the impurities to the balls 42 can be reduced. Especially in the coal mine, after the coal slime entering the installation cavity 411 is mixed with water, the ball 42 can be lubricated, and the rolling performance of the ball 42 is improved.
In addition, the water flow sprayed by the spraying device 5 can play a role in assisting in cooling the balls 42.
It should be noted that in the present invention, the state in which the balls 42 partially protrude from the bottom side of the housing 41 is based on the state in which the balls 42 face downward with respect to the squeegee body 3, and it is understood that the balls 42 partially protrude from the top side of the housing 41 when the balls 42 face upward with respect to the squeegee body 3. In the present invention, the blade body 3 is turned downward means that the blade body 3 is positioned below the balls 42 after the blade body 3 is turned downward.
In a preferred embodiment, the scraper conveyor further comprises, in particular, a partition plate capable of forming a sewage passage communicating the sewage hole 32 with the outside.
In the form of the partition plate, in a preferred embodiment, and more specifically, the partition plate is a waste cover 6, the waste cover 6 has a connecting end 61 connected to the scraper body 3 to rotatably open or close the waste hole 32, and when the scraper body 3 is turned downward, the waste cover 6 can be rotated by gravity to open the waste hole 32 to form the waste passage.
As shown in fig. 6 to 8, in the process of conveying materials by the scraper body 3, the pollution discharge cover 6 closes the pollution discharge hole 32, so that impurities entering the installation cavity 411 from the pollution discharge hole 32 can be reduced. When scraper blade body 3 moves to aircraft nose or tail, on the one hand, the rivers that spray set 5 jetted can break blowdown lid 6 to open blowdown hole 32, on the other hand, blowdown lid 6 under the action of gravity of self and under the promotion of impurity gravity, can open blowdown hole 32 through rotating automatically. After the pollution discharge cover 6 is opened, water flows into the pollution discharge hole 32 to dilute the scraper body 3 and the rolling bodies 4. When the scraper body 3 is turned upwards again, the sewage discharge cover 6 can be rotated under its own weight to automatically close the sewage discharge hole 32.
When the sewage discharge cover 6 is rotated and opened, impurities above the sewage discharge cover can be pushed down. Especially, under the condition that blowdown lid 6 sets up in blowdown hole 32, when blowdown lid 6 rotates to open, can push away the impurity in blowdown hole 32 and fall, reduce the phenomenon emergence of impurity card at blowdown hole 32.
In the present embodiment, the connection manner between the dirt discharging cover 6 and the scraper body 3 is not limited. In one embodiment, the attachment end 61 of the waste cover 6 is hinged to the squeegee body 3. In another embodiment, the connecting end 61 of the pollution discharge cover 6 and the scraper body 3 are connected by rubber or other elastic structure, and the pollution discharge cover 6 can rotate relative to the scraper body 3 by elastic deformation of the elastic structure to open or close the pollution discharge hole 32.
It should be noted that, in the present embodiment, the sewage discharging cover 6 closes the sewage discharging hole 32, including a case where the sewage discharging cover 6 covers the whole sewage discharging hole 32, and a case where the sewage discharging cover 6 covers the part of the sewage discharging hole 32.
Regarding the structure of the waste cover 6, in the embodiment shown in fig. 7, more specifically, the waste cover 6 is provided with a water inlet hole 62 communicating with the waste hole 32. When the waste cover 6 is provided with the water inlet hole 62, the water inlet hole 62 constitutes a part of the waste passage. If the dirt discharging cover 6 is blocked by the impurities and is difficult to open automatically, the water flow of the spraying device 5 can enter the dirt discharging hole 32 through the water inlet hole 62, and the diluted impurities can be discharged from the water inlet hole 62. Moreover, when the scraper blade body 3 overturns downwards, the water inside the scraper blade body can increase the thrust on the sewage discharge cover 6, so that the sewage discharge cover 6 can be opened conveniently, and the impurity discharging efficiency can be improved.
In the form of the partition plate, in an alternative embodiment, further specifically, the flight conveyor further includes a sewage screen 7, the sewage screen 7 is installed at the sewage hole 32, meshes of the sewage screen 7 form a sewage passage, and the sewage screen 7 partitions the sewage hole 412 and the outside of the flight body 3. As shown in fig. 9 and 10, during the process of conveying materials by the scraper body 3, the dirt discharging screen 7 can block large-particle materials from entering the installation cavity 411. When scraper blade body 3 overturns in aircraft nose or tail department, the rivers that spray set 5 jetted can get into installation cavity 411 by blowdown filter screen 7 in to dilute impurity, impurity after diluting can be discharged by blowdown filter screen 7.
It should be noted that the installation manner of the sewage screen 7 is not limited in this embodiment, and in one embodiment, the sewage screen 7 is inserted into the sewage hole 32 in an interference manner.
With regard to the installation of the sewage screen 7, further specifically, the distance between the top surface of the sewage screen 7 and the top edge of the sewage hole 32 is not less than 3 mm. When the material falls on scraper blade body 3, the bold material is difficult for getting into in the blowdown hole 32, can reduce bold material direct impact blowdown filter screen 7, reduces blowdown filter screen 7 and damages. In addition, when spraying blowdown filter screen 7, the restriction that part of bounce-back rivers received blowdown hole 32 pore wall can flow to blowdown filter screen 7 once more, and then flows in order to dilute impurity in installing cavity 411 to improve the effect of washing impurity. Moreover, the sewage discharge filter screen 7 is closer to the sewage outlet 412, so that the stroke of impurities flowing out of the sewage discharge filter screen 7 along with water flow can be shortened, the blockage of the impurities is reduced, and the sewage discharge efficiency is improved.
In the preferred embodiment, more specifically, the wear-resistant sealing ring 8 is installed on the bottom side of the installation cavity 411, and the wear-resistant sealing ring 8 is clamped by the cavity wall of the installation cavity 411 and the ball 42. As shown in fig. 7, the wear-resistant sealing ring 8 can reduce the gap between the ball 42 and the wall of the mounting cavity 411, improve the sealing performance of the mounting cavity 411 and reduce the impurities entering the mounting cavity 411. In addition, the wear-resistant seal ring 8 can scrape impurities attached to the surface of the ball 42, and the impurities can be reduced from entering the mounting cavity 411 along with the rolling of the ball 42.
With regard to the structure of the shower unit 5, in a preferred embodiment, further specifically, the shower unit 5 includes an outlet pipe 51 and a shower head 511 provided on the outlet pipe 51, the shower head 511 facing the drain hole 32. As shown in fig. 2, water flow can spray the drain holes 32 of the blade body 3 by the water spray head 511, thereby cleaning impurities inside the blade body 3 and the rolling bodies 4.
As shown in fig. 3 to 10, the present invention further provides a scraper including a scraper body 3 and rolling elements 4. The scraper body 3 is internally provided with a fixing hole 31 and a sewage discharge hole 32 which are communicated with each other, and the fixing hole 31 and the sewage discharge hole 32 penetrate through the scraper body 3; the rolling body 4 is arranged in the fixing hole 31, the rolling body 4 comprises a shell 41 and a ball 42, a mounting cavity 411 is formed in the shell 41, the ball 42 is arranged in the mounting cavity 411, the ball 42 partially extends out of the bottom side of the shell 41, and the shell 41 is provided with a dirt discharge hole 412 which is communicated with the mounting cavity 411 and the dirt discharge hole 32.
When the scraper blade of the invention is turned downwards in the operation process, impurities in the installation cavity 411 can be discharged through the sewage outlet 412 and the sewage outlet 32 under the action of gravity and under the promotion of the vibration of the scraper blade, so that the accumulation of impurities in the installation cavity 411 is reduced. The scraper can be applied to the material conveyor, the scraper starts to turn over when moving to the machine head or the machine tail, and the spraying device 5 can spray the sewage discharge holes 32 of the scraper body 3.
The sprayed water flows into the mounting cavity 411 through the sewage discharge hole 32 and the sewage discharge hole 412 to dilute impurities inside the scraper body 3 and the rolling body 4, so that the impurities are in a fluid state, and the fluid impurities are more easily discharged from the sewage discharge hole 32. Especially when scraper blade body 3 overturns downwards, the impurity after diluting can discharge under the action of gravity, and scraper blade body 3 can produce the vibration in the operation process moreover, and under the vibration effect, the impurity after diluting is changeed in discharging by blowoff hole 32.
In addition, under the effect of water pressure, softer impurity is easily broken into finer granule by the impact force of rivers, is difficult for blocking in installation cavity 411, outlet 412 and blowoff hole 32, discharges more easily. And the impact force of rivers can produce thrust to impurity, and impurity can discharge under thrust to further reduce the impurity card in scraper blade body 3 and rolling element 4.
After the scraper blade body 3 and the rolling body 4 are cleaned by water flow, the phenomenon that the balls 42 are clamped in the mounting cavity 411 can be reduced, the rolling performance of the balls 42 is improved, and the service life is prolonged. In addition, after cleaning, a small amount of moisture is retained in the scraper body 3 and the rolling body 4, and when materials are conveyed, impurities entering the mounting cavity 411 are mixed with the moisture, so that the flowability of the impurities can be improved, and the resistance of the impurities to the balls 42 can be reduced. Especially in the coal mine, after the coal slime entering the installation cavity 411 is mixed with water, the ball 42 can be lubricated, and the rolling performance of the ball 42 is improved.
In addition, the water flow sprayed by the spraying device 5 can play a role in assisting in cooling the balls 42.
As shown in fig. 11, the present invention further provides a rolling element 4, which comprises a housing 41, balls 42, and a sewage screen 7. The shell 41 is internally provided with a mounting cavity 411, and the shell 41 is provided with a sewage outlet 412 which is communicated with the mounting cavity 411 and the outside; the ball 42 is arranged in the mounting cavity 411, and the ball 42 partially extends out of the bottom side of the shell 41; the filth discharge screen 7 is installed at the housing 41, and the filth discharge screen 7 partitions the filth hole 412 and the outside of the housing 41.
In the operation process of the rolling body 4, the sewage filter screen 7 can prevent large-particle materials from entering the installation cavity 411. When rolling element 4 overturns downwards, the impurity in installation cavity 411 can be discharged by blowdown filter screen 7, reduces impurity and piles up in installation cavity 411. This rolling element 4 can be installed on above-mentioned scraper blade body 3 to can be applied to above-mentioned scraper conveyor on, the rivers that spray set 5 sprays can get into the installation cavity 411 by blowdown filter screen 7 in, with dilute impurity, the impurity after diluting can be discharged by blowdown filter screen 7.
In addition, the dirt discharge screen 7 can be attached to the housing 41 during assembly, and the assembled rolling elements 4 can be attached to the fixing holes 31 of the scraper body 3, thereby facilitating handling.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.
The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (10)
1. A scraper conveyor, comprising:
a material conveying groove;
the annular chain can move circularly relative to the material conveying groove;
the scraper body is arranged on the annular chain, a fixing hole and a sewage discharge hole which are communicated with each other are formed in the scraper body, and the fixing hole and the sewage discharge hole penetrate through the scraper body;
the rolling body is arranged in the fixing hole and comprises a shell and a ball, an installation cavity is formed in the shell, the ball is arranged in the installation cavity, part of the ball extends out of the bottom side of the shell, and the shell is provided with a sewage outlet communicated with the installation cavity and the sewage outlet;
the spraying device is arranged at the machine head and/or the machine tail, and when the scraper body is turned at the machine head or the machine tail, the spraying device can spray towards the sewage discharge hole of the scraper body.
2. The scraper conveyor of claim 1, further comprising a divider plate configured to form a trapway communicating the trapway opening to the environment.
3. The scraper conveyor of claim 2, wherein the separation plate is a waste cover having a connection end connected to the scraper body for rotatably opening or closing the waste opening, and wherein the waste cover is rotatable under the influence of gravity to open the waste opening when the scraper body is turned downward to form the waste channel.
4. The scraper conveyor of claim 3, wherein the dirt discharge cover is provided with a water inlet hole communicating with the dirt discharge hole.
5. The scraper conveyor of claim 2, wherein the partition plate is a sewage screen, the sewage screen is installed at the sewage hole, a mesh of the sewage screen forms the sewage passage, and the sewage screen separates the sewage hole and the outside of the scraper body.
6. The flight conveyor of claim 5, wherein a distance between a top surface of the drain screen and a top edge of the drain hole is no less than 3 mm.
7. The scraper conveyor of claim 1, wherein a wear-resistant seal ring is mounted to the bottom side of the mounting chamber, and the wear-resistant seal ring is clamped by the chamber wall of the mounting chamber and the balls.
8. The scraper conveyor of claim 1, wherein the spray device includes an outlet pipe and a sprinkler head disposed on the outlet pipe, the sprinkler head facing the drain hole.
9. A flight, comprising:
the scraper comprises a scraper body, wherein a fixing hole and a sewage discharge hole which are communicated with each other are formed in the scraper body, and the fixing hole and the sewage discharge hole penetrate through the scraper body;
the rolling element, the rolling element install in the fixed orifices, the rolling element includes shell and ball, the inside installation cavity that forms of shell, the ball install in the installation cavity, the ball has part to stretch out the bottom side of shell, the shell has the intercommunication the installation cavity with the hole that gives up dirt of blowoff.
10. A rolling element, comprising:
the sewage treatment device comprises a shell, a sewage treatment device and a sewage treatment system, wherein a mounting cavity is formed in the shell, and a sewage outlet hole communicated with the mounting cavity and the outside is formed in the shell;
the ball is arranged in the mounting cavity, and part of the ball extends out of the bottom side of the shell;
a blowdown filter screen, the blowdown filter screen install in the shell, just the blowdown filter screen separates the hole of decontaminating with the outside of shell.
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| CN202111234483.8A CN113879776B (en) | 2021-10-22 | 2021-10-22 | Scraper conveyor, scraper and rolling body |
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| CN202111234483.8A CN113879776B (en) | 2021-10-22 | 2021-10-22 | Scraper conveyor, scraper and rolling body |
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| CN113879776A true CN113879776A (en) | 2022-01-04 |
| CN113879776B CN113879776B (en) | 2023-11-14 |
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| CN114803368A (en) * | 2022-04-18 | 2022-07-29 | 山东灵犀院科技发展股份有限公司 | Rolling element with good sealing performance |
| CN114803370A (en) * | 2022-04-18 | 2022-07-29 | 山东灵犀院科技发展股份有限公司 | Rolling element with good sealing performance |
| CN114803369A (en) * | 2022-04-18 | 2022-07-29 | 山东灵犀院科技发展股份有限公司 | Rolling element with stable sealing performance |
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| CN113879776B (en) | 2023-11-14 |
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