阅读说明：本技术 一种高炉原燃料自动分仓用下料装置及其使用方法 (Automatic discharging device for blast furnace raw fuel in separate bins and using method thereof ) 是由 邱斌良 田通强 李亮 李钧 杨红军 魏纯江 曾军 于 2021-09-17 设计创作，主要内容包括：本发明公开了一种高炉原燃料自动分仓用下料装置及其使用方法,包括轨道框、物料箱、行走组件、筛分箱、动力组件、第一固定筒、第二固定筒和驱动组件,轨道框内壁的两侧均开设有滑槽,两个滑槽内部均滑动连接有滑块,两个滑块之间固定连接有物料箱,本发明通过动力组件配合筛网进行使用,可以对不同规格的燃料进行分类,通过驱动组件配合第一绞龙和第二绞龙进行使用,可以将燃料分别输送至不同的料仓内部,从而实现燃料的分类存储,不仅效率高,同时还方便使用时的取料,通过行走组件可以带动设备在轨道框底部移动,从而将设备移动至不同料仓的顶部,方便向不同料仓内部下料,有利于提高设备使用的灵活性。(The invention discloses a blanking device for automatically separating blast furnace raw fuel into bins and a use method thereof, and the blanking device comprises a track frame, a material box, a traveling component, a screening box, a power component, a first fixed cylinder, a second fixed cylinder and a driving component, wherein two sides of the inner wall of the track frame are respectively provided with a sliding chute, sliding blocks are respectively connected in the two sliding chutes in a sliding way, and the material box is fixedly connected between the two sliding blocks. The flexibility of the equipment is improved.)

1. The blanking device for the automatic separation of the blast furnace raw fuel is characterized by comprising a track frame (1), material boxes (4), walking components (5), a screening box (7), a power component (11), a first fixed cylinder (13), a second fixed cylinder (16) and a driving component (21), wherein sliding grooves (2) are formed in two sides of the inner wall of the track frame (1), two sliding blocks (3) are connected inside the sliding grooves (2) in a sliding manner, the material boxes (4) are fixedly connected between the two sliding blocks (3), the walking components (5) for driving the material boxes to move are arranged outside the material boxes (4), the bottoms of the material boxes (4) extend to the lower portion of the track frame (1) and are fixedly connected with connecting pipes (23), rotating rods (6) are rotatably connected inside the connecting pipes (23), the bottoms of the connecting pipes (23) are fixedly connected with the screening box (7), screening case (7) inside rotation is connected with screen cloth (8), screening case (7) inside is equipped with and is used for driving screen cloth (8) wobbling power component (11), screening case (7) inside just is located the first solid fixed cylinder (13) of top fixedly connected with of screen cloth (8), first solid fixed cylinder (13) inside rotation is connected with first auger (14), screening case (7) bottom fixedly connected with second solid fixed cylinder (16), second solid fixed cylinder (16) inside rotation is connected with second auger (17), the one end that screening case (7) was kept away from in first solid fixed cylinder (13) is equipped with and is used for driving first auger (14) and second auger (17) pivoted drive assembly (21).

2. The blanking device for the automatic separation of the blast furnace raw fuel according to claim 1, wherein the traveling assembly (5) comprises a fixing plate (51), a servo motor (52), a gear disc (53) and a rack (54), the fixing plate (51) is fixedly connected to the outside of the material tank (4), the servo motor (52) is fixedly connected to one side of the fixing plate (51), the output end of the servo motor (52) penetrates through the fixing plate (51) and is fixedly connected with the gear disc (53), the rack (54) is fixedly connected to the top of the track frame (1), and the gear disc (53) is meshed with the rack (54).

3. The automatic unloader that uses in branch storehouse of blast furnace raw fuel according to claim 1, characterized in that, power component (11) includes mounting bracket (111), first motor (112), transmission shaft (113) and cam (114), one side fixedly connected with mounting bracket (111) of connecting pipe (23) is just kept away from in screening case (7) outside, one side fixedly connected with first motor (112) of screening case (7) is just kept away from in mounting bracket (111) outside, the output of first motor (112) runs through mounting bracket (111) and fixedly connected with transmission shaft (113), the one end that mounting bracket (111) was kept away from in transmission shaft (113) extends to the inside and fixedly connected with cam (114) of screening case (7), the top of cam (114) and the bottom contact of screen cloth (8).

4. The blanking device for the automatic separation of the blast furnace raw fuel according to claim 3, wherein a driving pulley (12) is sleeved outside the transmission shaft (113), the central shaft of the rotating rod (6) extends to the outside of the connecting pipe (23) and is fixedly connected with a rotating shaft (9), one end of the rotating shaft (9) is fixedly connected with a driven pulley (10), and the driven pulley (10) is connected with the driving pulley (12) through belt transmission.

5. The blanking device for the automatic separation of the blast furnace raw fuel according to claim 1, wherein a first blanking pipe (15) is fixedly connected to one side of the bottom of the first fixed cylinder (13) far away from the screening box (7), and a second blanking pipe (18) is fixedly connected to one side of the bottom of the second fixed cylinder (16) far away from the first fixed cylinder (13).

6. The blanking device for the automatic separation of the blast furnace raw fuel according to claim 1, the driving assembly (21) comprises a gear box (211), a second motor (212), a driving gear (213) and a driven gear (214), one end of the first fixed cylinder (13) far away from the screening box (7) is fixedly connected with a gear box (211), a second motor (212) is fixedly connected with one side of the outer part of the gear box (211) far away from the first fixed cylinder (13), the output end of the second motor (212) extends to the interior of the gear box (211) and is fixedly connected with a driving gear (213), the central shaft of the first packing auger (14) extends into the gear box (211) and is fixedly connected with the driving gear (213), the interior of the gear box (211) is rotatably connected with a driven gear (214), and the driven gear (214) is meshed with a driving gear (213).

7. The blanking device for the automatic separation of the blast furnace raw fuel as claimed in claim 1, wherein the bottom of the first fixed cylinder (13) is symmetrically and fixedly connected with fixed rods (20), the bottoms of the fixed rods (20) are fixedly connected with shaft sleeves (22), two shaft sleeves (22) are rotatably connected with a connecting shaft (19), one end of the connecting shaft (19) extends to the inside of the second fixed cylinder (16) and is fixedly connected with one end of a second auger (17), and one end of the connecting shaft (19), which is far away from the second fixed cylinder (16), extends to the inside of a gear box (211) and is fixedly connected with a central shaft of a driven gear (214).

8. A use method of a blanking device for automatic separation of blast furnace raw fuel is based on any one of claims 1 to 7, and is characterized by comprising the following steps:

s1, the gear disc (53) is driven to rotate through the servo motor (52), at the moment, the gear disc (53) is matched with the rack (54) on the track frame (1), so that the material box (4) is driven to move on the track frame (1), the material box (4) drives the sliding blocks (3) on the two sides of the material box to slide in the sliding groove (2) in the moving process, meanwhile, the material box (4) drives equipment at the bottom of the material box to move, so that the equipment is integrally moved to a working position, and the first discharging pipe (15) and the second discharging pipe (18) are ensured to be respectively positioned at the tops of different bins;

s2, dye is conveyed to the inside of the material box (4) through an external conveying belt, fuel in the material box (4) falls into the screening box (7) through a connecting pipe (23), at the moment, a first motor (112) drives a transmission shaft (113) and a cam (114) to rotate, under the belt of the cam (114), a screen (8) swings up and down in the screening box (7) so as to screen the fuel, the transmission shaft (113) drives a driving belt pulley (12) to rotate in the rotating process, at the moment, the driving belt pulley (12) drives a driven belt pulley (10) to rotate under the cooperation of a transmission belt, and at the moment, the driven belt pulley (10) drives a rotating rod (6) to rotate in the connecting pipe (23) in cooperation with a rotating shaft (9);

s3, small-particle fuel falls into the second fixed cylinder (16) after being screened by the screen (8), large-particle fuel enters the first fixed cylinder (13), then the second motor (212) is started, the second motor (212) drives the driving gear (213) to rotate at the moment, the driving gear (213) drives the first packing auger (14) inside the first fixed cylinder (13) to rotate, so that the fuel in the first fixed cylinder (13) is discharged through the first discharging pipe (15), meanwhile, the driving gear (213) drives the driven gear (214) to rotate, the driven gear (214) is matched with the connecting shaft (19) to drive the second packing auger (17) inside the second fixed cylinder (16) to rotate, and the fuel inside the second fixed cylinder (16) is discharged through the second discharging pipe (18).

Technical Field

The invention belongs to the field of blanking devices, and particularly relates to a blanking device for automatic separation of raw fuel of a blast furnace and a using method thereof.

Background

The blast furnace is made of steel plate as furnace shell, refractory brick lining is built in the shell, the blast furnace body is divided into a furnace throat, a furnace body, a furnace waist, a furnace belly and a furnace cylinder 5 from top to bottom, because the blast furnace ironmaking technology has the advantages of good economic index, simple process, large production capacity, high labor production efficiency, low energy consumption and the like, iron produced by the method accounts for the vast majority of the total iron production in the world, the blast furnace needs to consume a large amount of fuel when in use, the combustion efficiency needs to be controlled at different processing nodes, different combustion effects can exist during combustion due to different volumes of raw fuel, so that the blast furnace is influenced by movement, in order to improve the rationality of fuel combustion, workers can store the raw material in a classification mode according to the size of the raw material, so that the combustion effects required by different processing nodes are adapted, and the existing fuels are not stored in a classification mode according to the specification, the screening is carried out through the screen cloth to the staff before using, and this kind of mode is not only slow, but also needs to influence the time of ejection of compact to reduce the work efficiency of blast furnace.

The invention content is as follows:

the invention aims to solve the problems in the prior art by providing a blanking device for automatic separation of blast furnace raw fuel and a using method thereof.

In order to solve the above problems, the present invention provides a technical solution:

a blanking device for automatic separation of blast furnace raw fuel comprises a track frame, a material box, a traveling component, a screening box, a power component, a first fixed cylinder, a second fixed cylinder and a driving component, wherein sliding grooves are formed in two sides of the inner wall of the track frame, sliding blocks are connected in the two sliding grooves in a sliding manner, the material box is fixedly connected between the two sliding blocks, the traveling component for driving the material box to move is arranged outside the material box, the bottom of the material box extends to the lower side of the track frame and is fixedly connected with a connecting pipe, a rotating rod is connected in the connecting pipe in a rotating manner, the screening box is fixedly connected at the bottom of the connecting pipe, a screen is connected in the screening box in a rotating manner, the power component for driving the screen to swing is arranged in the screening box, the first fixed cylinder is fixedly connected in the screening box and above the screen, a first auger is connected in the first fixed cylinder in a rotating manner, screening bottom of the case portion fixedly connected with second fixed cylinder, the inside second auger that rotates of second fixed cylinder is connected with, the one end that screening case was kept away from to first fixed cylinder is equipped with and is used for driving first auger and second auger pivoted drive assembly.

According to a preferable scheme of the invention, the walking assembly comprises a fixing plate, a servo motor, a gear disc and a rack, the fixing plate is fixedly connected to the outside of the material box, the servo motor is fixedly connected to one side of the fixing plate, the output end of the servo motor penetrates through the fixing plate and is fixedly connected with the gear disc, the rack is fixedly connected to the top of the track frame, and the gear disc is meshed with the rack.

As a preferable scheme of the invention, the power assembly comprises a mounting frame, a first motor, a transmission shaft and a cam, the mounting frame is fixedly connected to one side of the outside of the screening box, which is far away from the connecting pipe, the first motor is fixedly connected to one side of the outside of the mounting frame, which is far away from the screening box, the output end of the first motor penetrates through the mounting frame and is fixedly connected with the transmission shaft, one end of the transmission shaft, which is far away from the mounting frame, extends to the inside of the screening box and is fixedly connected with the cam, and the top end of the cam is in contact with the bottom of the screen.

As a preferred scheme of the invention, a driving belt pulley is sleeved outside the transmission shaft, a central shaft of the rotating rod extends to the outside of the connecting pipe and is fixedly connected with a rotating shaft, one end of the rotating shaft is fixedly connected with a driven belt pulley, and the driven belt pulley is in transmission connection with the driving belt pulley through a belt.

As a preferable scheme of the invention, a first blanking pipe is fixedly connected to one side of the bottom of the first fixing cylinder, which is far away from the screening box, and a second blanking pipe is fixedly connected to one side of the bottom of the second fixing cylinder, which is far away from the first fixing cylinder.

As a preferred scheme of the invention, the driving assembly comprises a gear box, a second motor, a driving gear and a driven gear, wherein one end of the first fixed cylinder, which is far away from the screening box, is fixedly connected with the gear box, one side of the outer part of the gear box, which is far away from the first fixed cylinder, is fixedly connected with the second motor, the output end of the second motor extends into the gear box and is fixedly connected with the driving gear, the central shaft of the first packing auger extends into the gear box and is fixedly connected with the driving gear, the inner part of the gear box is rotatably connected with the driven gear, and the driven gear is meshed with the driving gear.

As a preferred scheme of the invention, the bottom of the first fixing cylinder is symmetrically and fixedly connected with fixing rods, the bottoms of the fixing rods are fixedly connected with shaft sleeves, a connecting shaft is rotatably connected between the two shaft sleeves, one end of the connecting shaft extends into the second fixing cylinder and is fixedly connected with one end of the second auger, and one end of the connecting shaft, which is far away from the second fixing cylinder, extends into the gear box and is fixedly connected with a central shaft of the driven gear.

A use method of a blanking device for automatic separation of blast furnace raw fuel comprises the following steps:

s1, driving a gear disc to rotate through a servo motor, wherein the gear disc is matched with a rack on a track frame so as to drive a material box to move on the track frame, the material box drives sliding blocks on two sides of the material box to slide in a sliding groove in the moving process, and meanwhile, the material box drives equipment at the bottom of the material box to move, so that the equipment is integrally moved to a working position, and a first blanking pipe and a second blanking pipe are respectively positioned at the tops of different storage bins;

s2, conveying the dye to the inside of a material box through an external conveying belt, enabling the fuel in the material box to fall into a screening box through a connecting pipe, driving a transmission shaft and a cam to rotate by a first motor, enabling a screen to swing up and down in the screening box under the action of the cam, screening the fuel, driving a driving belt pulley to rotate by the transmission shaft in the rotating process, driving a driven belt pulley to rotate by the driving belt under the cooperation of a transmission belt, and driving a rotating rod to rotate in the connecting pipe by the driven belt pulley in cooperation with a rotating shaft;

s3, the tiny particle fuel falls into inside the second solid fixed cylinder after the screening of screen cloth, the large granule fuel then gets into inside the first solid fixed cylinder, then start the second motor, the second motor drives the driving gear and rotates this moment, at this moment the driving gear drives the inside first auger of first solid fixed cylinder and rotates, thereby pass through first unloading pipe discharge with the fuel in the first solid fixed cylinder, and meanwhile, the driving gear drives driven gear and rotates, at this moment driven gear cooperation connecting axle drives the inside second auger of second solid fixed cylinder and rotates, the inside fuel of second solid fixed cylinder passes through second unloading pipe discharge this moment.

The invention has the beneficial effects that: use through power component cooperation screen cloth, can classify to the fuel of different specifications, use through first auger of drive assembly cooperation and second auger, can carry the fuel respectively to the feed bin of difference inside, thereby realize the classified storage of fuel, high efficiency not only, get the material when still conveniently using simultaneously, can drive equipment through walking subassembly and remove in track frame bottom, thereby remove the top of equipment to different feed bins, conveniently to the inside unloading of different feed bins, be favorable to the flexibility that improve equipment used.

Description of the drawings:

for ease of illustration, the invention is described in detail by the following detailed description and the accompanying drawings.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the connection of the track frame and the material box of the present invention;

FIG. 3 is an enlarged view at A in FIG. 1;

fig. 4 is an enlarged view at B in fig. 2.

In the figure: 1. a track frame; 2. a chute; 3. a slider; 4. a material box; 5. a walking assembly; 51. a fixing plate; 52. a servo motor; 53. a gear plate; 54. a rack; 6. a rotating rod; 7. screening the box; 8. screening a screen; 9. a rotating shaft; 10. a driven pulley; 11. a power assembly; 111. a mounting frame; 112. a first motor; 113. a drive shaft; 114. a cam; 12. a drive pulley; 13. a first fixed cylinder; 14. a first auger; 15. a first blanking pipe; 16. a second fixed cylinder; 17. a second auger; 18. a second blanking pipe; 19. a connecting shaft; 20. fixing the rod; 21. a drive assembly; 211. a gear case; 212. a second motor; 213. a driving gear; 214. a driven gear; 22. a shaft sleeve; 23. and (4) connecting the pipes.

The specific implementation mode is as follows:

as shown in fig. 1 to 4, the following technical solutions are adopted in the present embodiment:

example (b):

a blanking device for automatically separating raw fuel of a blast furnace from a bin comprises a track frame 1, a material box 4, a traveling component 5, a screening box 7, a power component 11, a first fixed cylinder 13, a second fixed cylinder 16 and a driving component 21, wherein two sides of the inner wall of the track frame 1 are respectively provided with a sliding groove 2, the insides of the two sliding grooves 2 are respectively connected with a sliding block 3 in a sliding way, the material box 4 is fixedly connected between the two sliding blocks 3 and can limit the material box 4, so that the material box 4 is prevented from being separated from the inside of the track frame 1, the outside of the material box 4 is provided with the traveling component 5 for driving the material box to move, the bottom of the material box 4 extends to the lower part of the track frame 1 and is fixedly connected with a connecting pipe 23, the inside of the connecting pipe 23 is rotatably connected with a rotating rod 6, so that the fuel can be prevented from being blocked inside the connecting pipe 23, thereby ensuring the smooth effect of material guiding, the bottom of the connecting pipe 23 is fixedly connected with the screening box 7, screening case 7 inside is rotated and is connected with screen cloth 8, the convenience is sieved the fuel of different specifications, 7 inside being equipped with of screening case is used for driving screen cloth 8 wobbling power component 11, 7 inside and the first solid fixed cylinder 13 of top fixedly connected with that is located screen cloth 8 of screening case, the inside rotation of first solid fixed cylinder 13 is connected with first auger 14, 7 bottom fixedly connected with second solid fixed cylinder 16 of screening case, 16 inside rotations of second solid fixed cylinder are connected with second auger 17, can classify the fuel after the screening and carry, thereby realize the effect in minute storehouse, the one end that screening case 7 was kept away from to first solid fixed cylinder 13 is equipped with and is used for driving first auger 14 and second auger 17 pivoted drive assembly 21.

Wherein, walking subassembly 5 includes fixed plate 51, servo motor 52, toothed disc 53 and rack 54, the outside fixedly connected with fixed plate 51 of material case 4, one side fixedly connected with servo motor 52 of fixed plate 51, servo motor 52's output runs through fixed plate 51 and fixedly connected with toothed disc 53, 1 top fixedly connected with rack 54 of track frame, and toothed disc 53 is connected with the meshing of rack 54, can drive equipment and remove in 1 bottom of track frame, thereby remove the top to different feed bins with equipment, conveniently to the inside unloading of different feed bins, be favorable to improving the flexibility that equipment used.

Wherein, power component 11 includes mounting bracket 111, first motor 112, transmission shaft 113 and cam 114, screening case 7 is outside and keeps away from one side fixedly connected with mounting bracket 111 of connecting pipe 23, mounting bracket 111 is outside and keeps away from the first motor 112 of one side fixedly connected with of screening case 7, mounting bracket 111 and fixedly connected with transmission shaft 113 are run through to first motor 112's output, 113 one end of keeping away from mounting bracket 111 of transmission shaft extends to screening case 7 is inside and fixedly connected with cam 114, cam 114's top and screen cloth 8's bottom contact, can drive screen cloth 8 and carry out reciprocal luffing motion in screening case 7 is inside, be favorable to improving the effect to the fuel screening.

Wherein, the outside cover of transmission shaft 113 is equipped with drive pulley 12, and the center pin of bull stick 6 extends to connecting pipe 23 outside and fixedly connected with pivot 9, and the one end fixedly connected with driven pulley 10 of pivot 9 is connected through belt transmission between driven pulley 10 and the drive pulley 12, can drive bull stick 6 and rotate in connecting pipe 23 is inside to prevent the inside fuel jam of connecting pipe 23.

Wherein, the first unloading pipe 15 of one side fixedly connected with of screening case 7 is just kept away from to first fixed cylinder 13 bottom, and the second unloading pipe 18 of one side fixedly connected with of the fixed cylinder 16 bottom of second and keeping away from first fixed cylinder 13 can carry the fuel to inside the feed bin of difference to the effect that the branch storehouse was stored is realized.

Wherein, drive assembly 21 includes gear box 211, second motor 212, driving gear 213 and driven gear 214, the one end fixedly connected with gear box 211 of screening case 7 is kept away from to first solid fixed cylinder 13, the outside of gear box 211 just keeps away from one side fixedly connected with second motor 212 of first solid fixed cylinder 13, the output of second motor 212 extends to the inside and fixedly connected with driving gear 213 of gear box 211, the center pin of first auger 14 extends to the inside and with driving gear 213 fixed connection of gear box 211, the inside rotation of gear box 211 is connected with driven gear 214, and driven gear 214 is connected with driving gear 213 meshing, effect through driving gear 213 and driven gear 214 meshing reversal, can drive first auger 14 and second auger 17 and carry out the antiport, thereby carry out antiport to fuel.

Wherein, the symmetrical fixedly connected with dead lever 20 in first solid fixed cylinder 13 bottom, the equal fixedly connected with axle sleeve 22 in dead lever 20 bottom, it is connected with connecting axle 19 to rotate between two axle sleeves 22, the one end of connecting axle 19 extends to the solid fixed cylinder 16 of second inside and with the one end fixedly connected with of second auger 17, the one end that the solid fixed cylinder 16 of second was kept away from to connecting axle 19 extends to the gear box 211 inside and with driven gear 214's center pin fixed connection, can cooperate driven gear 214 to drive the rotation of second auger 17, thereby carry the inside fuel of the solid fixed cylinder 16 of second.

A use method of a blanking device for automatic separation of blast furnace raw fuel comprises the following steps:

s1, the gear disc 53 is driven to rotate through the servo motor 52, at the moment, the gear disc 53 is matched with the rack 54 on the track frame 1, so that the material box 4 is driven to move on the track frame 1, the material box 4 drives the sliding blocks 3 on two sides of the material box to slide in the sliding groove 2 in the moving process, meanwhile, the material box 4 drives equipment at the bottom of the material box to move, so that the equipment is integrally moved to a working position, and the first discharging pipe 15 and the second discharging pipe 18 are ensured to be respectively positioned at the tops of different bins;

s2, conveying the dye to the inside of the material box 4 through an external conveying belt, allowing the fuel in the material box 4 to fall into the screening box 7 through the connecting pipe 23, at this time, the first motor 112 drives the transmission shaft 113 and the cam 114 to rotate, under the belt of the cam 114, the screen 8 swings up and down in the screening box 7 to screen the fuel, the transmission shaft 113 drives the driving pulley 12 to rotate in the rotating process, at this time, the driving pulley 12 drives the driven pulley 10 to rotate under the cooperation of the transmission belt, at this time, the driven pulley 10 cooperates with the rotating shaft 9 to drive the rotating rod 6 to rotate in the connecting pipe 23;

s3, screening small-particle fuel by the screen 8 and then falling into the second fixed cylinder 16, entering large-particle fuel into the first fixed cylinder 13, starting the second motor 212, driving the driving gear 213 to rotate by the second motor 212, driving the first auger 14 in the first fixed cylinder 13 to rotate by the driving gear 213, discharging the fuel in the first fixed cylinder 13 through the first discharging pipe 15, driving the driving gear 213 to rotate the driven gear 214, driving the second auger 17 in the second fixed cylinder 16 to rotate by the driven gear 214 matching with the connecting shaft 19, and discharging the fuel in the second fixed cylinder 16 through the second discharging pipe 18.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or 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 referenced device or element 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.

Furthermore, the terms "first", "second", "third", "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", "fourth" may explicitly or implicitly include at least one such feature.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.