Scraper type bottom groove material receiving device and using method thereof

Abstract

The invention provides a scraper type bottom groove material receiving device and a using method thereof, the scraper type bottom groove material receiving device comprises a bottom groove, a sweeping scraper, a transmission chain and a driving motor, the sweeping scraper matched with the bottom groove in shape is arranged on the bottom groove, the sweeping scraper is connected with the transmission chain, and the transmission chain is connected with the driving motor. The inclined face in butt joint with the falling position of the materials is arranged in the bottom groove, the materials can slide to the bottom of the bottom groove due to gravity, the sweeping scraper drives the transmission chain to move through the motor, the materials in the bottom groove are periodically swept and discharged, and the problem that the materials are frequently accumulated at the bottom in the operation process of the limestone powder belt conveyor is effectively solved.

Description

Technical Field

[0001] The invention relates to the technical field of material transportation equipment, and in particular to a scraper-type bottom trough material receiving device and a use method thereof. Background Art

[0002] Limestone powder belt conveyor is an important equipment in the flue gas desulfurization system of coal-fired power plants. Because limestone powder is very fine, it is inevitable that limestone powder will fall during conveying. If it is not cleaned in time, limestone powder will easily accumulate under the conveyor. When the accumulated powder height reaches a certain height, it will affect the normal operation of the belt conveyor, and a series of problems such as conveyor belt deviation and conveyor belt slipping will occur. Summary of the invention

[0003] The object of the present invention is to provide a scraper-type bottom trough material receiving device and a method of using the same, so as to solve the problem of material accumulation at the bottom of a limestone powder belt conveyor during operation.

[0004] According to one purpose of the present invention, the present invention provides a scraper type bottom trough material receiving device, including a bottom trough, a cleaning scraper, a transmission chain and a drive motor, the bottom trough is provided with a cleaning scraper matching the shape of the bottom trough, the cleaning scraper is connected to the transmission chain, and the transmission chain is connected to the drive motor.

[0005] Furthermore, the cross section of the bottom groove is in an inverted trapezoidal shape.

[0006] Furthermore, the cleaning scraper is made of corrosion-resistant and wear-resistant polyurethane material.

[0007] Furthermore, the transmission chain includes a chain, a transmission shaft and a chain gear. The two transmission shafts are rotatably connected to the bottom groove through a bearing assembly. The chain gear is fixed on the transmission shaft, and the chain is meshingly connected with the chain gear.

[0008] Furthermore, a square groove and a bolt hole are provided in the middle of the cleaning scraper, the square groove is used for the chain to pass through, and the bolt hole is used to fix the chain to the cleaning scraper.

[0009] Furthermore, the transmission shaft includes a driving shaft and a driven shaft, one end of the driving shaft is fixedly connected to gear one, the driving motor is installed and connected to the outside of the bottom groove, the output shaft of the driving motor is fixedly connected to gear two, and gear two is meshed with gear one.

[0010] Furthermore, the bearing assembly includes a bearing bracket, a bearing seat, a bearing and an adjustment screw. The bearing bracket is fixedly connected to the bottom groove, the bearing seat and the bearing bracket are fitted with concave and convex grooves, the adjustment screw is connected to the bearing bracket, and the other end of the adjustment screw is fixedly connected to the bearing seat.

[0011] Furthermore, the bearing assembly is placed outside the bevel of the bottom groove, and a shaft seal is installed when the transmission shaft passes through the bevel of the bottom groove.

[0012] According to the second object of the present invention, the present invention provides a method for using the scraper type bottom trough material receiving device, comprising the following steps:

[0013] Arrange and install the bottom trough according to the bottom space size of the on-site material conveyor, and assemble the transmission chain and drive motor outside the bottom trough;

[0014] Adjust the parallelism of the transmission shaft and the appropriate chain tightness to ensure uniform force;

[0015] Then turn on the motor power switch and check the operation of the cleaning device; the bottom trough is equipped with an inclined surface that docks with the material drop position. The material will slide to the bottom of the bottom trough due to gravity. The cleaning scraper drives the movement of the transmission chain driven by the motor to periodically clean and discharge the material in the bottom trough;

[0016] Finally, when the material conveyor stops running, the power supply of the cleaning device driving motor is turned off, the cleaning device stops running, and the cleaning of the bottom trough material is completed.

[0017] Furthermore, the shape of the cleaning scraper is completely consistent with the inverted trapezoidal cross-section of the bottom trough to ensure that there are no dead corners during the cleaning process and to ensure that the material can be cleaned efficiently and thoroughly to one end of the bottom trough.

[0018] The technical solution of the present invention provides an inclined surface in the bottom trough which is docked with the material falling position. The material will slide to the bottom of the bottom trough due to gravity. The cleaning scraper drives the movement of the transmission chain through the motor to periodically clean and discharge the material in the bottom trough, effectively solving the problem of material accumulation at the bottom of the limestone powder belt conveyor during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a structural schematic diagram of an embodiment of the present invention;

[0021] Figure 2 is a cross-sectional schematic diagram of an embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of a cleaning scraper according to an embodiment of the present invention;

[0023] Figure 4 It is a schematic diagram of the structure of a chain according to an embodiment of the present invention;

[0024] Figure 5 It is an enlarged schematic diagram of structure B of an embodiment of the present invention.

[0025] In the figure: 1. bottom groove; 11. shaft seal; 2. cleaning scraper; 3. transmission chain; 31. chain; 311. scraper fixing; 312. chain link; 32. transmission shaft; 321. driving shaft; 322. driven shaft; 323. gear one; 33. chain gear; 4. bearing assembly; 41. bearing bracket; 42. bearing seat; 43. bearing; 44. adjusting screw; 5. driving motor; 51. gear two. DETAILED DESCRIPTION

[0026] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0028] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. 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 circumstances.

[0029] Example 1

[0030] like Figure 1-Figure 5 As shown,

[0031] A scraper-type bottom trough material receiving device includes a bottom trough 1, the cross section of the bottom trough 1 is an inverted trapezoid, and can collect materials dropped from above. A cleaning scraper 2 is arranged on the bottom trough 1. The shape of the cleaning scraper 2 matches the shape of the bottom trough 1. The cleaning scraper 2 is made of corrosion-resistant and wear-resistant polyurethane material. The cleaning scraper 2 is connected to a transmission chain 3 by bolts.

[0032] The transmission chain 3 includes a chain 31 , a transmission shaft 32 and a chain gear 33 . The transmission chain 3 is supported and fixed by a bearing assembly 4 . The transmission chain 3 is driven by a driving motor 5 to rotate.

[0033] A square groove and a bolt hole are provided in the middle of the cleaning scraper 2. The square groove allows the chain 31 to pass through, and the bolt hole is used for bolting the chain 31 to the cleaning scraper 2. The chain 31 includes a chain link 312, and a scraper fixing part 311 is fixed on the chain link 312. The chain link 312 is connected to the cleaning scraper 2 through the scraper fixing part 311.

[0034] The transmission shaft 32 is divided into a driving shaft 321 and a driven shaft 322. One end of the driving shaft 321 is fixedly connected to a gear 323. A chain gear 33 is installed in the middle of the transmission shaft 32. The chain gear 33 and the transmission shaft 32 are fixed in axial displacement by a hexagon socket screw.

[0035] The bearing assembly 4 is composed of a bearing bracket 41, a bearing seat 42, a bearing 43 and an adjusting screw 44. The bearing bracket 41 is welded to the bottom groove 1 as a whole. The bearing seat 42 and the bearing bracket 41 are matched with concave and convex grooves, and the bearing seat 42 can slide freely horizontally.

[0036] The lateral sliding displacement of the bearing seat 42 is controlled by the adjusting screw 44, which is controlled by rotating the adjusting screw 44 clockwise or counterclockwise. One end of the adjusting screw 44 is threadedly matched with the bearing bracket 41 using a copper sleeve, and the other end is fixed to the bearing seat 42 and can rotate freely.

[0037] The bearing assembly 4 is placed outside the bevel of the bottom groove 1. When the transmission shaft 32 passes through the bevel of the bottom groove 1, a shaft seal 11 is installed. The shaft seal 11 consists of a sealing rubber and a sealing pressure plate. The sealing rubber and the sealing pressure plate are annular and have threaded holes. The sealing pressure plate fixes the sealing rubber to the outside of the bottom groove by bolts.

[0038] The driving motor 5 is installed and connected to the outer side of the bottom groove 1 , and the output shaft of the driving motor 5 is fixedly connected with the gear 2 51 , and the gear 2 51 is meshed with the gear 1 323 .

[0039] When the present invention is used:

[0040] Arrange and install the bottom trough 1 according to the bottom space size of the on-site material conveyor, install the bearing assembly 4 on the outside of the bottom trough 1, and assemble the transmission chain and the drive motor 5;

[0041] After installing the above components, first rotate the adjusting screw to adjust the parallelism of the driving shaft and the driven shaft, as well as the appropriate chain tightness, so that the force is evenly distributed;

[0042] Then add grease to the bearing assembly and transmission gear to ensure smooth rotation;

[0043] Then turn on the motor power switch and check the operation of the cleaning device;

[0044] Finally, when the material conveyor stops running, the power supply of the cleaning device driving motor is turned off, the cleaning device stops running, and the cleaning of the bottom trough material is completed.

[0045] The scraper type bottom trough material receiving device of the present invention has a bottom trough which covers the falling position of materials such as limestone powder. The bottom trough is formed by integrally welding steel plates, and its cross section is an inverted trapezoid. Materials falling on the inclined edges on both sides will slide to the bottom due to gravity.

[0046] The scraper-type bottom trough material receiving device of the present invention rotates the driving shaft of the transmission chain driven by a motor, and the motor shaft end is connected to a fixed gear 2 and meshes with the gear 1 of the driving shaft for transmission, and a chain and a chain gear are installed in the middle of the driving shaft. Through the meshing transmission of the chain and the chain gear, the driving shaft can drive the driven shaft at the other end to rotate together, and a cleaning scraper is fixed on the chain by bolts. The shape of the cleaning scraper matches the shape of the bottom trough and is made of corrosion-resistant and wear-resistant polyurethane material. Under the drive of the motor, the driving shaft, the driven shaft, and the chain rotate accordingly, and the scraper fixed on the chain periodically cleans the materials in the bottom trough, and is transported from one end of the bottom trough to the other end for discharge.

[0047] The scraper type bottom trough material receiving device of the present invention, the bearing assembly of the transmission shaft is composed of a bearing bracket, a bearing seat, a bearing, and an adjusting screw. The entire bearing assembly is placed outside the bevel of the bottom trough to prevent falling materials from contaminating the bearing. The lateral sliding displacement of the bearing seat is controlled by rotating the adjusting screw clockwise or counterclockwise, which can be used to adjust the parallelism between the two transmission shafts and the tightness of the chain. When the transmission shaft passes through the bottom trough, it is also fixed with a rubber seal by bolts to further prevent bearing contamination.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A scraper-type bottom trough material receiving device, characterized in that: The utility model comprises a bottom trough, a cleaning scraper, a transmission chain and a driving motor. The bottom trough is provided with the cleaning scraper which matches the shape of the bottom trough. The cleaning scraper is connected with the transmission chain, and the transmission chain is connected with the driving motor.

2. The scraper type bottom trough material receiving device according to claim 1 is characterized in that: The cross section of the bottom groove is in an inverted trapezoidal shape.

3. The scraper type bottom trough material receiving device according to claim 1, characterized in that: The cleaning scraper is made of corrosion-resistant and wear-resistant polyurethane material.

4. The scraper type bottom trough material receiving device according to claim 1, characterized in that: The transmission chain comprises a chain, a transmission shaft and a chain gear. The two transmission shafts are rotatably connected to the bottom groove through a bearing assembly. The chain gear is fixed on the transmission shaft, and the chain is meshedly connected with the chain gear.

5. The scraper type bottom trough material receiving device according to claim 4, characterized in that: A square groove and a bolt hole are provided in the middle of the cleaning scraper. The square groove is used for the chain to pass through, and the bolt hole is used to fix the chain to the cleaning scraper.

6. The scraper type bottom trough material receiving device according to claim 4, characterized in that: The transmission shaft includes a driving shaft and a driven shaft, one end of the driving shaft is fixedly connected to gear one, the driving motor is installed and connected to the outside of the bottom groove, the output shaft of the driving motor is fixedly connected to gear two, and the gear two is meshed with the gear one.

7. The scraper type bottom trough material receiving device according to claim 4, characterized in that: The bearing assembly includes a bearing bracket, a bearing seat, a bearing and an adjusting screw. The bearing bracket is fixedly connected to the bottom groove. The bearing seat and the bearing bracket are fitted with concave and convex grooves. The adjusting screw is connected to the bearing bracket, and the other end of the adjusting screw is fixedly connected to the bearing seat.

8. The scraper type bottom trough material receiving device according to claim 4, characterized in that: The bearing assembly is placed outside the bottom groove bevel, and a shaft seal is installed when the transmission shaft passes through the bottom groove bevel.

9. The method for using the scraper type bottom trough material receiving device according to claim 1, characterized in that: The steps include: Arrange and install the bottom trough according to the bottom space size of the on-site material conveyor, and assemble the transmission chain and drive motor outside the bottom trough; Adjust the parallelism of the transmission shaft and the appropriate chain tightness to ensure uniform force; Then turn on the motor power switch and check the operation of the cleaning device; the bottom trough is equipped with an inclined surface that docks with the material drop position. The material will slide to the bottom of the bottom trough due to gravity. The cleaning scraper drives the movement of the transmission chain through the motor to periodically clean and discharge the material in the bottom trough; Finally, when the material conveyor stops running, the power supply of the cleaning device driving motor is turned off, the cleaning device stops running, and the cleaning of the bottom trough material is completed.

10. The method for using the scraper type bottom trough material receiving device according to claim 9, characterized in that: The shape of the cleaning scraper is completely consistent with the inverted trapezoidal cross-section of the bottom trough to ensure that there are no dead corners during the cleaning process and that the material can be cleaned efficiently and thoroughly to one end of the bottom trough.

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