阅读说明：本技术 一种基于物联网的钻机进给装置 (Rig feeding device based on thing networking ) 是由 唐健豪 张纪英 赵敏 刘良斌 彭雯 刘德玉 于 2019-10-23 设计创作，主要内容包括：一种基于物联网的钻机进给装置,包括固定板,固定板的上有进给管,进给管的下部外周套装直线轴承,直线轴承贯穿固定板的中部且直线轴承的外圈与固定板连接,第一电动伸缩杆、进气装置、第一风机、第二电动伸缩杆、第一动力装置、第二动力装置均分别与控制器、电源连接,控制器分别与电源、网络连接。本发明设计采用先由钻筒、钻齿钻环形凹槽,再有伸缩轴带动钻孔刀头钻孔的方式,分两步进行木头钻孔操作,且能够有效的避免钻孔时木屑乱飞的现象,为木头钻孔营造良好工作环境,确保钻孔工作人员的健康,同时本发明采用全自动化的操作进行木头钻孔,不仅减轻了钻孔工作人员的工作量,节约了人工成本,还保证了钻孔的精度,提升钻孔质量。(The utility model provides a rig feeding device based on thing networking, includes the fixed plate, has the feed pipe on the fixed plate, and the lower part periphery suit linear bearing of feed pipe, linear bearing run through the middle part of fixed plate and linear bearing's outer lane is connected with the fixed plate, and first electric telescopic handle, air inlet unit, first fan, second electric telescopic handle, first power device, second power device are equallyd divide and are connected with controller, power respectively, and the controller respectively with power, internet access. According to the invention, the drilling cylinder and the drilling tooth are used for drilling the annular groove, and the telescopic shaft drives the drilling tool bit to drill holes, so that the wood drilling operation is carried out in two steps, the phenomenon that wood chips fly randomly during drilling can be effectively avoided, a good working environment is created for wood drilling, the health of drilling workers is ensured, meanwhile, the full-automatic operation is adopted for wood drilling, the workload of the drilling workers is reduced, the labor cost is saved, the drilling precision is ensured, and the drilling quality is improved.)

1. The utility model provides a rig feeding device based on thing networking which characterized in that: comprises a fixed plate (1), a vertical feeding pipe (2) is arranged above the fixed plate (1), a linear bearing (39) is sleeved on the periphery of the lower part of the feeding pipe (2), the linear bearing (39) penetrates through the middle part of the fixed plate (1), the outer ring of the linear bearing is connected with the fixed plate bearing, an annular cavity (3) is arranged in the feeding pipe (2), a plurality of vertical first through holes (4) which are uniformly distributed are respectively formed in the top surface and the bottom surface of the cavity (3), a vertical drilling barrel (6) is arranged below the fixed plate (1), the drilling barrel (6) is sleeved on the outer side of the lower end of the feeding pipe (2), an end cover (5) is installed at the upper end of the drilling barrel (6) through a sealing bearing, the lower end of the feeding pipe (2) penetrates through the middle part of the end cover (5) and is connected with the sealing bearing, a plurality of drilling teeth (7) which are annularly distributed are fixedly installed on the bottom surface of the drilling barrel (6), the feeding, the top surface of the end cover (5) is provided with a plurality of vertical air outlets (9) which are distributed annularly, the outer ends of the air outlets (9) are fixedly connected with one ends of air outlet hoses (10), the bottom surface of the fixing plate (1) is fixedly provided with a first fan (11), and the other ends of the air outlet hoses (10) are fixedly connected with the first fan (11); a fixed pipe (12) with a sealed upper end is arranged above the feeding pipe (2), a vertical second through hole (40) is formed in the upper end of the fixed pipe (12), a vertical annular second groove (13) is formed in the bottom surface of the fixed pipe (12), the lower end bearing of the fixed pipe (12) is connected with the upper end of the feeding pipe (2), the second groove (13) is communicated with the inside of the first through hole (4) in the upper part, a horizontal air inlet (14) is formed in the inner wall of the right side of the second groove (13), an air inlet device fixedly connected with the air inlet (14) is arranged on the fixed plate (1), an inverted L-shaped first support (15) is fixedly installed on the left side of the top surface of the fixed plate (1), a first electric telescopic rod (16) is fixedly installed on the bottom surface of the horizontal part of the first support (15), a vertical telescopic shaft (17) is arranged on the right side of the first electric telescopic rod (16), and the fixed end bearing of the telescopic shaft, the movable end of a telescopic shaft (17) sequentially penetrates through a second through hole (40), a feeding pipe (2) is inserted into a drilling barrel (6), the telescopic shaft (17) is coaxial with the feeding pipe (2) and the drilling barrel (6), a plurality of drilling tool bits (18) which are distributed in an annular shape are fixedly arranged at the periphery of the movable end of the telescopic shaft (17), a plurality of chipping blades (19) which are distributed in an annular shape are arranged above the drilling tool bits (18), the inner ends of the chipping blades (19) are fixedly connected with the movable part of the telescopic shaft (17), a plurality of fan blades (20) which are distributed in an annular shape are fixedly arranged at the periphery of the lower part of the movable part of the telescopic shaft (17) through connecting rods, the fan blades (20) are positioned above the chipping blades (19), the fan blades (20), the chipping blades (19) and the drilling tool bits (18) are positioned inside the drilling barrel (6), a shaft sleeve (21) is sleeved at the periphery of the fixed upper part of the movable part of the telescopic shaft (17), and the left side of the shaft, a horizontal part of the first bracket (15) is provided with a first power device for driving the telescopic shaft (17) to rotate; second electric telescopic handle (23) with movable end down is fixedly installed on the right side of the top surface of fixed plate (1) through second support (22), the movable part of second electric telescopic handle (23) passes through the connecting block to be connected with the corresponding side of fixed pipe (12), gear (24) is fixedly installed on the periphery of the upper part of feeding pipe (2), third support (25) is fixedly installed on the right side of fixed plate (1), vertical rotating shaft (26) is installed on the right side of the top surface of fixed plate (1), third support (25) is connected to the upper end bearing of rotating shaft (26), gear column (27) is fixedly installed on the periphery of rotating shaft (26), gear column (27) and gear (24) are engaged and matched all the time, third support (25) is further provided with second power device for driving rotating shaft (26) to rotate, controller (38) is fixedly installed on the left side of first support (15), first electric telescopic handle (16), The air inlet device, the first fan (11), the second electric telescopic rod (23), the first power device and the second power device are respectively connected with the controller (38) and the power supply, and the controller (38) is respectively connected with the power supply and the network.

2. The internet of things-based drill feeding device according to claim 1, wherein: the air inlet device comprises a second fan (28) and an air outlet pipe (29), the second fan (28) is fixedly installed on the right side of the top surface of the fixing plate (1), the air outlet of the second fan (28) is fixedly connected with the air outlet pipe (29), and the other end of the air outlet pipe (29) is fixedly connected with the outer end of the air inlet (14).

3. The internet of things-based drill feeding device according to claim 1, wherein: the first power device comprises a first motor (30), a first belt wheel (31), a second belt wheel (32) and a first belt (33), the first motor (30) is fixedly installed on the bottom surface of the horizontal portion of the first support (15), an output shaft of the first motor (30) faces downwards, the first belt wheel (31) is fixedly installed on the output shaft of the first motor (30), the second belt wheel (32) is fixedly sleeved on the periphery of the fixing portion of the telescopic shaft (17), and the first belt wheel (31) and the second belt wheel (32) are connected through the first belt (33).

4. The internet of things-based drill feeding device according to claim 1, wherein: the second power device comprises a second motor (3) with an output shaft facing downwards, which is fixedly arranged on the left side of a third support (25), a third belt wheel (35) is fixedly sleeved on the output shaft of the second motor (34), a fourth belt wheel (36) is fixedly sleeved on the periphery of the lower part of a rotating shaft (26), and the fourth belt wheel (36) is connected with the third belt wheel (35) through a second belt (37).

Technical Field

The invention belongs to the field of drilling machine feeding equipment, and particularly relates to a drilling machine feeding device based on the Internet of things.

Background

Drilling machines, widely used in various fields; in the woodwork trade, the frequency of use of rig is very high, but when using the rig to carry out the drilling operation to wood, the saw-dust during drilling can fly to everywhere along with the rotation of drill bit, and the saw-dust is flooded in the air, not only makes the whole environment of drilling workplace dirty in disorder, and the saw-dust that flies all the day simultaneously is inhaled the lung by the drilling staff easily, causes the disease, but the bright few rig feeding device that can unify the discharge with the saw-dust simultaneously of having among the prior art.

Disclosure of Invention

The invention provides a drilling machine feeding device based on the Internet of things, which is used for overcoming the defects in the prior art.

The invention is realized by the following technical scheme:

a drilling machine feeding device based on the Internet of things comprises a fixed plate, wherein a vertical feeding pipe is arranged above the fixed plate, a linear bearing is sleeved on the periphery of the lower portion of the feeding pipe, the linear bearing penetrates through the middle of the fixed plate, the outer ring of the linear bearing is connected with the fixed plate bearing, an annular cavity is formed in the feeding pipe, a plurality of vertical first through holes are uniformly distributed in the top surface and the bottom surface of the cavity respectively, a vertical drilling barrel is arranged below the fixed plate and sleeved outside the lower end of the feeding pipe, an end cover is arranged at the upper end of the drilling barrel through a sealing bearing, the lower end of the feeding pipe penetrates through the middle of the end cover and is connected with the sealing bearing, a plurality of drilling teeth which are distributed in an annular shape are fixedly arranged on the bottom surface of the drilling barrel, the feeding pipe is fixedly connected with the drilling barrel through a plurality of connecting rods, a plurality of vertical air outlets, the bottom surface of the fixed plate is fixedly provided with a first fan, and the other ends of the air outlet hoses are fixedly connected with the first fan; a fixed pipe with a sealed upper end is arranged above the feeding pipe, a vertical second through hole is arranged at the upper end of the fixed pipe, a vertical annular second groove is arranged on the bottom surface of the fixed pipe, a bearing at the lower end of the fixed pipe is connected with the upper end of the feeding pipe, the second groove is communicated with the inside of a first through hole at the upper part, a horizontal air inlet is arranged on the inner wall at the right side of the second groove, an air inlet device fixedly connected with the air inlet is arranged on the fixed plate, an inverted L-shaped first support is fixedly arranged at the left side of the top surface of the fixed plate, a first electric telescopic rod is fixedly arranged at the bottom surface of the horizontal part of the first support, a vertical telescopic shaft is arranged at the right side of the first electric telescopic rod, a bearing at the fixed end of the telescopic shaft is connected with the bottom surface of the horizontal part of the first support, the movable end of the telescopic shaft sequentially penetrates through the second through hole, the feeding pipe is, a plurality of fragment blades which are distributed annularly are arranged above the drilling tool bit, the inner ends of the fragment blades are fixedly connected with a movable part of the telescopic shaft, a plurality of fan blades which are distributed annularly are fixedly installed on the periphery of the lower part of the movable part of the telescopic shaft through a connecting rod, the fan blades are positioned above the fragment blades, the fan blades, the fragment blades and the drilling tool bit are all positioned in the drilling barrel, a shaft sleeve is sleeved on the periphery of the upper part of the movable part of the telescopic shaft, the left end of the shaft sleeve is fixedly connected with the movable part of a first electric telescopic rod, and a horizontal part of a first support is provided with a first power device for driving the telescopic shaft; the top surface right side of fixed plate passes through second support fixed mounting expansion end second electric telescopic handle down, the movable part of second electric telescopic handle passes through the connecting block and connects the corresponding side of fixed pipe, the fixed suit gear in upper portion periphery of feed pipe, the right side top surface fixed mounting third support of fixed plate, the vertical pivot of top surface right side bearing installation of fixed plate, the third support is connected to the upper end bearing of pivot, the fixed suit gear post in periphery of pivot, gear post and gear meshing cooperation all the time, the third support still is equipped with drive pivot pivoted second power device, the fixed installation controller in left side of first support, first electric telescopic handle, air inlet unit, first fan, second electric telescopic handle, first power device, second power device equally divide respectively with the controller, the power is connected, the controller respectively with the power, network connection.

As above, the drilling machine feeding device based on the Internet of things comprises a second fan and an air outlet pipe, wherein the second fan is fixedly installed on the right side of the top surface of the fixing plate, the air outlet of the second fan is fixedly connected with the air outlet pipe, and the other end of the air outlet pipe is fixedly connected with the outer end of the air inlet.

According to the drilling machine feeding device based on the Internet of things, the first power device comprises the first motor, the first belt wheel, the second belt wheel and the first belt, the first motor is fixedly installed on the bottom surface of the horizontal portion of the first support, the output shaft of the first motor faces downwards, the first belt wheel is fixedly installed on the output shaft of the first motor, the second belt wheel is fixedly sleeved on the periphery of the fixing portion of the telescopic shaft, and the first belt wheel and the second belt wheel are connected through the first belt.

According to the drilling machine feeding device based on the Internet of things, the second power device comprises a second motor with an output shaft facing downwards and fixedly mounted on the left side of the third support, a third belt wheel is fixedly sleeved on the output shaft of the second motor, a fourth belt wheel is fixedly sleeved on the periphery of the lower portion of the rotating shaft, and the fourth belt wheel is connected with the third belt wheel through a second belt.

The invention has the advantages that: when the wood drilling machine is used, as shown in figure 1, under the control of a controller, firstly, a second power device drives a rotating shaft to rotate, a gear column and a gear are engaged and matched all the time, the rotating shaft drives a feeding pipe to rotate along with the gear column, the feeding pipe rotates to drive a drilling cylinder and drilling teeth to rotate along with the gear column, meanwhile, a movable part of a second electric telescopic rod extends downwards, the movable part of the second electric telescopic rod is connected with the corresponding side of a fixed pipe through a connecting block, a bearing at the lower end of the fixed pipe is connected with the upper end of the feeding pipe, so that the fixed pipe, the feeding pipe, an end cover, the drilling cylinder and the drilling teeth all move downwards along with the second electric telescopic rod, the drilling teeth drill a circular groove on wood firstly, then the first power device drives a telescopic shaft to rotate, the movable part and the fixed part of the telescopic shaft only stretch and do not rotate relatively, and the rotation of the telescopic shaft drives fan, The chip blade and the drilling tool bit rotate along with the wood chip blade, meanwhile, the movable part of the telescopic shaft is driven by the first electric telescopic rod to extend downwards, the drilling tool bit is enabled to drill holes in the wood, the wood in the grooves is drilled, meanwhile, air in the drill cylinder flows as shown by arrows in the figure 5, the chip blade is used for smashing wood chips in the drilling process, the air inlet device is used for blowing air to the air inlet, the air enters the second groove from the air inlet in sequence, the first through hole in the upper part enters the cavity from the air inlet and then is blown into the drill cylinder from the first through hole in the lower part, the fan blade drives the wood chips in the drill cylinder to move upwards, meanwhile, the first fan sucks air, the wood chips in the drill cylinder are sucked out from the air outlet by the first fan and enter the air outlet hose, and then the wood chips are discharged from the air outlet; the wood drilling machine is reasonable in design, the drilling cylinder and the drilling tooth drill the annular groove, and the telescopic shaft drives the drilling tool bit to drill holes, so that wood drilling operation is performed in two steps.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of the present invention; FIG. 2 is an enlarged view of a portion I of the present invention; FIG. 3 is an enlarged view of a portion of FIG. 1 II; FIG. 4 is an enlarged view of a portion of FIG. 1 III; FIG. 5 is an enlarged view of a portion of FIG. 1 IV.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

A drilling machine feeding device based on the Internet of things comprises a fixing plate 1, wherein a vertical feeding pipe 2 is arranged above the fixing plate 1, a linear bearing 39 is sleeved on the periphery of the lower portion of the feeding pipe 2, the linear bearing 39 penetrates through the middle of the fixing plate 1, the outer ring of the linear bearing is connected with the fixing plate bearing, an annular cavity 3 is arranged in the feeding pipe 2, a plurality of vertical through holes 4 which are uniformly distributed are formed in the top surface and the bottom surface of the cavity 3 respectively, a vertical drilling barrel 6 is arranged below the fixing plate 1, the drilling barrel 6 is sleeved on the outer side of the lower end of the feeding pipe 2, an end cover 5 is arranged at the upper end of the drilling barrel 6 through a sealing bearing, the lower end of the feeding pipe 2 penetrates through the middle of the end cover 5 and is connected with the sealing bearing, a plurality of drilling teeth 7 which are distributed annularly are fixedly arranged on the bottom surface of the drilling barrel 6, the feeding pipe 2 is fixedly connected with the drilling barrel 6, the outer ends of the air outlets 9 are fixedly connected with one end of an air outlet hose 10, a first fan 11 is fixedly installed on the bottom surface of the fixed plate 1, and the other end of the air outlet hose 10 is fixedly connected with the first fan 11; a fixed pipe 12 with a sealed upper end is arranged above the feeding pipe 2, a vertical second through hole 40 is arranged at the upper end of the fixed pipe 12, a vertical annular second groove 13 is arranged on the bottom surface of the fixed pipe 12, the lower end bearing of the fixed pipe 12 is connected with the upper end of the feeding pipe 2, the second groove 13 is communicated with the inside of a first through hole 4 at the upper part, a horizontal air inlet 14 is arranged on the inner wall at the right side of the second groove 13, an air inlet device fixedly connected with the air inlet 14 is arranged on the fixed plate 1, an inverted L-shaped first support 15 is fixedly arranged at the left side of the top surface of the fixed plate 1, a first electric telescopic rod 16 is fixedly arranged at the bottom surface of the horizontal part of the first support 15, a vertical telescopic shaft 17 is arranged at the right side of the first electric telescopic rod 16, the fixed end bearing of the telescopic shaft 17 is connected with the bottom surface of the horizontal part of the first support 15, the movable, the telescopic shaft 17 is coaxial with the feeding pipe 2 and the drilling barrel 6, a plurality of drilling tool bits 18 distributed in an annular shape are fixedly installed on the periphery of the movable end of the telescopic shaft 17, a plurality of chipping blades 19 distributed in an annular shape are arranged above the drilling tool bits 18, the inner ends of the chipping blades 19 are fixedly connected with the movable portion of the telescopic shaft 17, a plurality of fan blades 20 distributed in an annular shape are fixedly installed on the periphery of the lower portion of the movable portion of the telescopic shaft 17 through connecting rods, the fan blades 20 are located above the chipping blades 19, the fan blades 20, the chipping blades 19 and the drilling tool bits 18 are located inside the drilling barrel 6, a shaft sleeve 21 is sleeved on the periphery of the upper portion of the movable portion of the telescopic shaft 17, the left end of the shaft sleeve 21 is fixedly connected with the movable portion of the first electric telescopic rod 16, and a first power device for driving the; a second electric telescopic rod 23 with a downward movable end is fixedly installed on the right side of the top surface of the fixed plate 1 through a second bracket 22, the movable part of the second electric telescopic rod 23 is connected with the corresponding side of the fixed tube 12 through a connecting block, a gear 24 is fixedly sleeved on the periphery of the upper part of the feeding tube 2, a third bracket 25 is fixedly installed on the top surface of the right side of the fixed plate 1, a vertical rotating shaft 26 is installed on the right side of the top surface of the fixed plate 1 through a bearing, the upper end of the rotating shaft 26 is connected with the third bracket 25 through a bearing, a gear column 27 is fixedly sleeved on the periphery of the rotating shaft 26, the gear column 27 is always engaged and matched with the gear 24, the third bracket 25 is also provided with a second power device for driving the rotating shaft 26 to rotate, a controller 38 is fixedly installed on the left side of the first bracket 15, and the first electric telescopic rod 16, the air inlet device, the first fan 11, the controller 38 is connected to a power supply and a network, respectively. The invention is suitable for drilling wood by a drilling machine, when in use, as shown in figure 1, under the control of a controller 38, firstly, a second power device drives a rotating shaft 26 to rotate, because a gear column 27 is always meshed and matched with a gear 24, the rotating shaft 26 rotates to drive a feeding pipe 2 to rotate along with the rotating shaft, the feeding pipe 2 rotates to drive a drilling barrel 6 and drilling teeth 7 to rotate along with the rotating shaft, meanwhile, the movable part of a second electric telescopic rod 23 extends downwards, because the movable part of the second electric telescopic rod 23 is connected with the corresponding side of a fixed pipe 12 through a connecting block, and a bearing at the lower end of the fixed pipe 12 is connected with the upper end of the feeding pipe 2, so that the fixed pipe 12, the feeding pipe 2, an end cover 5, the drilling barrel 6 and the drilling teeth 7 all move downwards along with the second electric telescopic rod 23, thereby the drilling teeth 7 drill an annular groove on wood firstly, then, the first power device drives a telescopic shaft 17 to rotate, the movable part and the fixed part of, the rotation of the telescopic shaft 17 drives the fan blade 20, the chip blade 19 and the drilling tool bit 18 to rotate along with the rotation, meanwhile, the first electric telescopic rod 16 drives the movable part of the telescopic shaft 17 to extend downwards, so that the drilling tool bit 18 performs drilling operation on wood, thereby drilling the wood in the groove, meanwhile, the air in the drill cylinder 6 flows as shown by arrows in figure 5, the chip blade 19 breaks wood chips in the drilling process, the air inlet device blows air to the air inlet 14, the air enters the cavity 3 from the second groove 13 and the first through hole 4 at the upper part in sequence from the air inlet 14 and then blows into the drill cylinder 6 from the first through hole 4 at the lower part, the fan blade 20 drives the crushed wood chips in the drill cylinder 6 to move upwards, meanwhile, the first fan 11 sucks air, the first fan 11 sucks the crushed wood chips in the drill cylinder 6 out of the air outlet 9, enters the air outlet hose 10 and then is discharged from the air outlet of the first fan 11, drilling operation on the wood can be realized; the wood drilling machine is reasonable in design, the annular grooves are drilled by the drilling cylinder 6 and the drilling teeth 7, the telescopic shaft 17 drives the drilling tool bit 18 to drill holes, wood drilling operation is performed in two steps, the first fan 11, the air inlet device and the fan blades 20 are used in cooperation, drilled wood chips are smashed and sucked away in a concentrated mode during drilling, the phenomenon that the wood chips fly in disorder during drilling can be effectively avoided, a good working environment is created for wood drilling, the health of drilling workers is guaranteed, meanwhile, full-automatic operation is adopted for wood drilling, the workload of the drilling workers is reduced, labor cost is saved, fine operation is achieved, the drilling accuracy is guaranteed, and the drilling quality is improved.

Specifically, as shown in fig. 1, the air inlet device according to this embodiment includes a second blower 28 and an air outlet pipe 29, the second blower 28 is fixedly installed on the right side of the top surface of the fixing plate 1, an air outlet of the second blower 28 is fixedly connected to the air outlet pipe 29, and the other end of the air outlet pipe 29 is fixedly connected to the outer end of the air inlet 14. During use, the second fan 28 blows air so that external air is blown into the air inlet 14 via the air outlet duct 29.

Specifically, as shown in fig. 4, the first power device of the present embodiment includes a first motor 30, a first belt pulley 31, a second belt pulley 32, and a first belt 33, the first motor 30 is fixedly mounted on the bottom surface of the horizontal portion of the first bracket 15, an output shaft of the first motor 30 faces downward, the first belt pulley 31 is fixedly mounted on the output shaft of the first motor 30, the second belt pulley 32 is fixedly sleeved on the periphery of the fixing portion of the telescopic shaft 17, and the first belt pulley 31 and the second belt pulley 32 are connected by the first belt 33. In use, the first motor 30 works, and the output shaft of the first motor 30 rotates to drive the telescopic shaft 17 to rotate therewith.

Further, as shown in fig. 3, the second power device according to the present embodiment includes a second motor 3 with an output shaft facing downward and fixedly installed on the left side of the third bracket 25, a third pulley 35 fixedly sleeved on the output shaft of the second motor 34, a fourth pulley 36 fixedly sleeved on the lower periphery of the rotating shaft 26, and the fourth pulley 36 and the third pulley 35 are connected by a second belt 37. In use, the second motor 34 is operated, and since the fourth belt pulley 36 is connected to the third belt pulley 35 via the second belt 37, the rotation of the output shaft of the second motor 34 drives the rotation shaft 26 to rotate therewith.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.