401 results about "Double row" patented technology

1. The name of this design product: electric omnidirectional wheel (double-row wheel set). 2. Purpose of this design product: used for the movement of mechanical equipment. 3. The design key point of this appearance design product lies in the shape. 4. The picture or photo that best illustrates the design points: Stereoscopic diagram 2.

The invention provides a forcing device for a rotating shaft system. The forcing device comprises a supporting unit and an axial force loading unit. The supporting unit comprises a portal frame and a bearing sleeve unit. The bearing sleeve unit comprises a bearing sleeve and two double-row angular contact ball bearings. The axial force loading unit comprises an axial loading sleeve, a small round nut, a variable-pitch compression spring, an axial force sensor and a buffer sleeve, the axial force sensor abuts against the side face of the bearing sleeve unit, the buffer sleeve is connected with the other face of the axial force sensor, and the variable-pitch compression spring is arranged on the buffer sleeve in a sleeving mode; the axial loading sleeve is connected with the portal frame through a small round nut and abuts against one end of the variable-pitch compression spring. And the displacement direction of the axial force loading unit is parallel to the rotating shaft system. Through the combination of the buffer sleeve and the variable-pitch compression spring, the axial force is uniformly and gently applied to the loading shaft, and the application of the axial force is precisely regulated and controlled.

The high-pressure steering gear comprises a shell, a valve element and a valve sleeve, the valve sleeve is arranged in the shell, the valve element is arranged on the inner wall of the valve sleeve, the outer wall of the valve element is sleeved with a return torsion spring with a larger steering angle, a metering cycloid rotor stator pair is arranged on one side of the shell, and the metering cycloid rotor stator pair is arranged on the other side of the shell. An oil inlet groove P, a right steering oil groove R, a left steering oil groove L and an oil tank oil return groove T which are communicated with one another are formed in the shell, and double rows of second rotor and stator oil distribution radial holes and first rotor and stator oil distribution radial holes which are independent in left-right steering are formed in the shell. Advanced technologies such as flow amplification, cylinder damping vibration attenuation and wide steering angle are built in. The hydraulic steering gear has the advantages of being higher in power density, small in pressure loss, resistant to pressure impact, stable in steering and the like.

The invention relates to the field of seamless steel tube processing, and discloses a seamless steel tube production process and a seamless steel tube production line, a size changing process is added between a traditional heating process and a traditional punching process, and a square blank or a large-diameter circular blank (a first blank) is changed into a small-diameter circular blank (a second blank). The size changing procedure can be achieved through independent or combined rolling, push rolling and skew rolling processes, for example, push rolling is adopted for changing square billets into round billets, and a two-roller or three-roller skew rolling round billet machine is adopted for reducing the diameter. The first blanks in the heating furnace are arranged in double rows, meanwhile, the product outline is adjusted according to the capacity of a unit, and the front portion, the rear portion and the middle portion are subjected to optimized production, wherein double-row material distribution is achieved, the finished products are as long as 12 m, and cutting head loss is reduced. The matched production line is provided with size changing equipment (such as a section mill, a push mill and a skew mill combination) between a heating furnace and a perforating machine, square billets or round billets can be flexibly processed, the material distribution efficiency, the finished product length and the cost are balanced through the size changing technology, and the economical efficiency and flexibility of seamless steel pipe production are improved.

The utility model discloses a forklift portal frame applied to an impact working condition, which comprises an inner portal frame, an outer portal frame, a goods blocking frame, a fork arm carrier, an oil cylinder, a roller and a side roller, and the upper end of the outer portal frame is provided with an outer portal frame roller shaft and a threaded hole; the lower end of the inner door frame is provided with an inner door frame roller shaft and a threaded hole; fork arm carrier roller shafts and threaded holes are arranged at the upper end and the lower end of the fork arm carrier, and the threaded holes are used for skid-mounting of side rollers; the roller comprises an outer ring and an inner ring, the inner ring is connected with the outer gantry roller shaft, the inner gantry roller shaft and the fork arm carrier roller shaft, double rows of steel balls and a retainer are arranged between the inner ring and the outer ring, the retainer is used for uniformly separating the plurality of steel balls in each row, and the outer ring and the inner ring are sealed through a sealing piece. The forklift portal frame is simplified in structure and low in cost, the durability of the idler wheels is effectively improved, and the failure rate is reduced. The rigidity is enhanced through an outer wrapping structure, high-position transverse deformation is reduced, and safety is improved. And the fork arm carrier is high in strength and adapts to severe working conditions.

The utility model relates to a double-row automatic feeding and discharging skip car which is characterized in that a material box turnover mechanism, a material box lifting mechanism and an air cylinder are sequentially arranged at the front end of a main frame from top to bottom, double rows of upper-layer fixed slideways and lower-layer fixed slideways are arranged at the rear end of the main frame, and the upper-layer fixed slideways are obliquely arranged from back to front; a material blocking rod is arranged at the top end of the main frame in a sliding mode, and the air cylinder drives the material box lifting mechanism to drive the material box turnover mechanism to move up and down. The automatic feeding and discharging device is scientific and reasonable in design, feeding and discharging can be automatically completed, the automation degree of a production line is improved, working hours are saved, and the link that after materials on a material frame are used up by workers, empty boxes are manually poured to other positions is omitted; and the mechanical structure is simple to operate and good in reliability, the design of common electrical blocking is avoided, an electrical control system is simplified, and the cost is low.

The invention relates to the technical field of welding robots, and particularly discloses an automatic welding robot for automobile parts, which comprises a rack and a worktable fixedly mounted at the top of the rack and used for placing double rows of tail throats, a portal frame is fixedly mounted at the top of the worktable, and a triangular centering clamping unit and a pressing double-lock unit are arranged between the left inner wall and the right inner wall of the portal frame; the stable triangular clamping structure is formed between the clamping points, higher clamping stability can be provided for the double-row tail throats, it is ensured that the Y-shaped pipe and the tail pipe are kept fixed in the whole welding process, even if the Y-shaped pipe and the tail pipe are affected by external force, the triangular structure can effectively disperse stress, the situation that any single clamping point bears too large pressure is avoided, and the welding quality is improved. And the three clamping points are distributed in different directions, and the external attempts to enable the rotating force of the Y-shaped pipe or the tail pipe to be counteracted by the triangular clamping structure, so that the Y-shaped pipe and the tail pipe can be effectively prevented from rotating in the welding process, and accurate centering during welding is ensured.

The invention discloses a construction technology of a squat silo top formwork system, and belongs to the technical field of silo construction, and the construction technology comprises construction of a conical shell top plate supporting system, and comprises the following steps: reserved hole construction: when a silo wall slip form is constructed to an elevation, a plurality of reserved holes are uniformly distributed in a silo wall along the circumferential direction; mounting a central upright post, hoisting the central upright post to a foundation at the central position of the warehouse, arranging four cable ropes for temporary fixation, then erecting double-row scaffolds around the upright post, and carrying out column embracing connection by using steel pipe fasteners and a central steel pipe every 1.5 meters; a top conversion platform is installed, the assembled conversion platform is lifted to the top of the center stand column through a tower crane, and the conversion platform is in bolt connection with the center stand column through a round pipe; bailey frames are installed, the two sides of one end of each Bailey piece are welded to the conversion platform through channel steel to limit sliding of the Bailey beams, the other end of each Bailey piece is placed at the reserved hole of the bin wall, and the Bailey beams are placed in the central symmetry direction in sequence. The stability of the supporting system is improved.

The invention relates to the technical field of welding equipment, and particularly discloses a welding device for welding automobile parts, which comprises a workbench, a clamping mechanism and a welding mechanism, the welding mechanism comprises two C-shaped plates and two welding guns, the first side of each C-shaped plate is provided with a C-shaped ring groove and a C-shaped guide groove which are coaxially arranged, the C-shaped ring groove is internally provided with a conveying belt and a first driving assembly, and the first driving assembly is provided with a second driving assembly. The C-shaped guide groove is located on the outer side of the C-shaped annular groove, a sliding column is slidably connected into the C-shaped guide groove, the welding gun is in rotating fit with the sliding column, the welding gun is in sliding fit and elastic connection with the sliding column, the welding gun is slidably connected with a driving column in the extending direction of the welding gun, the driving column is in rotating fit with the welding gun and fixedly connected with the conveying belt, and the conveying belt drives the driving column to move along the C-shaped annular groove. The driving column drives the welding gun and the sliding column to move along the C-shaped guide groove. The welding device for welding the automobile parts can be suitable for welding of double rows of pipes, continuous ring welding can be achieved through the welding gun, and the welding efficiency and the welding seam quality are improved.

The utility model discloses a double-row ball type rotary drive in the technical field of rotary drive, which comprises a shell, an outer gear ring, an inner ring and a sealing ring, an oil duct is arranged on the upper portion of the outer gear ring, balls are arranged between the outer gear ring and the inner ring, a worm and worm teeth are arranged in the shell, teeth are arranged on the outer ring of the outer gear ring, and the outer ring of the outer gear ring is provided with the sealing ring. A fixing part is arranged on the upper portion between the shell and the outer gear ring, a positioning ring is arranged on the top of the fixing part, sealing rings are arranged on the top and the bottom between the outer gear ring and the inner ring, a clamping groove is formed in the upper portion of the inner wall of the shell, and lubricating oil flows to the bottoms of balls arranged above through an oil channel to lubricate the balls. And then the lubricating oil flows downwards through a gap between the outer gear ring and the inner ring to lubricate balls arranged below, and meanwhile, the worm teeth and the balls are lubricated at the same time.

The utility model relates to the technical field of agricultural machinery, in particular to a feeding mechanism of a carrot harvester, which is characterized in that the feeding mechanism is positioned at the front part of the harvester, and driven clamping belt wheels and leading-in wheels are mounted in a left-right staggered manner to form a splayed feeding port; the driven clamping belt wheel can swing back and forth, and it is guaranteed that radish leaves are evenly fed with the same clamping force. All the components are installed on the inlet shell. The inlet shell is connected with the telescopic body through the safety bolt, and the telescopic body is installed in the main beam of the machine frame and can move front and back to adjust the tightness degree of the clamping belt. The harvester moves forwards, the splayed inlet gathers two rows of carrot tassels to the middle, the carrot tassels enter the clamping opening, and the rotating clamping belt clamps the carrot tassels and conveys the carrot tassels backwards. If the front end of the feeding mechanism suddenly touches the ground, large impact force is generated, and the safety bolt is automatically broken to protect the whole machine from being damaged. The splayed feeding mechanism solves the problem of accurate feeding during harvesting of carrots planted in large ridges and double rows.

The invention belongs to the field of control mechanism design of vertical take-off and landing aircrafts, and particularly relates to an in-shaft collective pitch rotor control structure and method. Comprising a shifting sleeve fixing nut, an operating rod, a variable-pitch shifting sleeve, a propeller shell, a sliding key, a bearing seat, a double-row angular contact ball bearing, a bearing fixing nut, a steering engine connecting piece, a propeller shell lining, a propeller blade and a variable-pitch rocker arm, and synchronous rotation of the variable-pitch mechanism and the propeller shell is achieved through a guide key. The variable-pitch rocker arm is installed between the variable-pitch shifting sleeve and the paddle, space is fully utilized, and conversion from linear motion of the steering engine to rotary motion of the paddle is achieved. The double-row angular contact bearing is mounted on the operating lever to realize connection with a non-rotating steering engine, pitch variation of five blades can be realized simultaneously, and the operating lever has the advantages of high operating stability, compact structural space and the like.

The utility model discloses a circuit board double-row tray arranging machine. The circuit board double-row tray arranging machine comprises a machine frame, a product conveying device, a tray conveying device and a tray arranging device. Wherein the tray conveying device comprises a feeding assembly, a conveying assembly and a material receiving assembly, the feeding assembly is used for placing empty trays on the conveying assembly, and the conveying assembly is used for moving the empty trays to the tray placing position and conveying the trays full of products to the material receiving assembly after tray placing is completed; the tray conveying device comprises a first tray conveying device and a second tray conveying device which are arranged on the two sides of the product conveying device respectively, the tray arranging device comprises a first tray arranging device and a second tray arranging device which are arranged in a staggered mode in the product conveying direction, and the first tray arranging device is used for arranging products on trays conveyed by the first tray conveying device. The second tray placing device is used for placing products on the trays conveyed by the second tray conveying device. The circuit board double-row wobble plate machine has the advantages of being small in occupied space and high in wobble plate efficiency.

The utility model relates to the technical field of corn seeding, and in particular to a flat socket cavity seeding wheel, comprising a wheel body, a round head double flat hole, a flat socket cavity, and a seeding piece guide groove, wherein the wheel body is cylindrical, the round head double flat hole is arranged at the center of the wheel body, the flat socket cavity is arranged on the outer circumferential surface of the wheel body, and is distributed in double rows in parallel, and the seeding piece guide groove is arranged on the outer circumferential surface of the wheel body. The utility model designs the flat socket cavity by using the corn seed profiling principle, during sowing operation, the seeding wheel rotates clockwise, and the flat socket cavity also rotates accordingly, and the corn seeds enter the flat socket cavity in a flat state, and although the flat socket cavity expands the seed filling window, each flat socket cavity can only accommodate a single corn seed, which is conducive to seed filling but not easy to cause reseeding.

The present invention discloses a connection structure of a prefabricated wall panel and an assembled steel frame structure beam and a construction method thereof, comprising a steel frame, a prefabricated wall panel and a connection device. The connection device comprises a slide groove and a wall panel connection piece. The slide groove is welded to the two ends of the lower flange of the upper beam and the upper flange of the lower beam respectively, so that the wall panel connection piece slides into the slide groove to achieve rapid positioning and fixing; the wall panel connection piece is L-shaped, and the connection piece and the wall panel are bolted in the factory, and the connection piece and the frame beam are connected by double-row bolts after alignment at the construction site. The present invention is simple to construct, and the bolt connection is convenient and fast, and the construction speed is improved. It can adapt to the development of assembled steel structures and is easy to install and dismantle. The double-row bolt connection is adopted to ensure that the steel beam has a high overall stability and bearing capacity, and at the same time, the deformation coordination between the steel frame and the prefabricated wall panel is better.

The pipeline cutter comprises a double-row support, an inclined plate is installed on the bottom wall of the lower row of the double-row support, and electric telescopic rods are installed in inner cavities of vertical parts on the left side and the right side of the front portion between the two rows of the double-row support. First vertical plates are installed at the upper ends of the two electric telescopic rods correspondingly, the second vertical plate is rotationally connected with a first motor, the first motor is fixed to the middle of the second vertical plate, the two-way threaded rod and the first guide rod are jointly provided with two cutting devices, and a centering adjusting device is arranged in the middle of the second vertical plate. According to the pipeline cutter for thermal power plant boiler overhaul, the two cutting devices are adopted for cutting a boiler pipeline, the whole boiler pipeline in use does not need to be dismantled, only the device needs to be moved to the position below the boiler pipeline needing to be cut, the outer side of the boiler pipeline needing to be cut is sleeved with the cutting devices, and then the boiler pipeline is cut. And the pipeline can be cut through the cutting device, and time and labor are saved.

According to the technical scheme, the double-system-controlled transverse curtain is characterized by comprising a curtain body, a lower beam A and a lower beam B. The lower beam A and the lower beam B can ascend and descend, a double-row rope winder is arranged in the curtain body and comprises two rope winding pipes which are arranged side by side in the front-back direction, and the two rope winding pipes are arranged in the front-back direction. A rope A and a rope B are wound on the two rope winding pipes respectively, a rope outlet A and a rope outlet B for the rope A and the rope B to pass through are formed in the two sides of the bottom of the double-row rope winder, and the rope A and the rope B are connected with the lower beam A and the lower beam B respectively. The curtain is simple and reliable in structure and convenient to produce and machine, and the heights of the left side and the right side of the curtain can be kept consistent in use.

The embodiment of the invention provides a hub bearing and a machining process thereof, and relates to the technical field of hub bearings. The hub bearing comprises an outer ring, a fixing ring, an inner ring and a flange, the outer ring is mounted on the circumferential outer wall of the inner ring, double rows of raceways are arranged in the outer ring, balls are mounted in the raceways through retainers, one end of the outer ring is connected with the fixing ring, one end of the inner ring is connected with the flange, and a gap between the outer ring and one end of the inner ring is sealed through a sealing ring. A gap between the other ends of the outer ring and the inner ring is sealed through a sealing adjusting mechanism which is installed on the inner ring. Dynamic self-adaptive sealing adjustment is achieved through a mechanical linkage structure of the floating ring, the lever arm and the sealing push ring, slope positioning matching and guide limiting design are combined, it is ensured that sealing pressure is automatically matched along with working conditions and evenly attached to a sealing groove, meanwhile, abrasion resistance and operation stability are improved, the sealing life is remarkably prolonged, and the overall reliability is remarkably improved.

The slope protection construction operation platform comprises an inner row of inclined rods and an outer row of inclined rods which are parallel to a slope, the inner row of inclined rods and the outer row of inclined rods are fixedly connected through a plurality of parallel longitudinal horizontal rods to form a latticed frame, and a plurality of transverse horizontal rods are fixedly connected between the inner latticed frame and the outer latticed frame to form a three-dimensional space frame. The two side faces and the two end faces of the three-dimensional space frame are connected through cross bridging arranged in a crossed mode. The inner side face of the three-dimensional space frame is provided with pulling joints connected with anchor rods driven into the side slope. The invention further discloses a construction method of the operation platform. The operation platform is stable in structure, high in adjustability and convenient to install and has a safety protection function. The platform can adapt to different slope ratios, heights and geological conditions, and integrates an operation platform, safety protection and equipment bearing.

The utility model discloses a stage lighting truss which comprises a plurality of double-row frame bodies, a plurality of first transfer frame bodies and a plurality of connecting assemblies. The double-row frame body and the first transfer frame body are connected through a connecting assembly to form a top frame; the first transfer frame body is arranged at the vertex angle of the top frame; a plurality of double-row frame bodies are connected between every two first transfer frame bodies; the multiple double-row frame bodies are connected and spliced into a stand column through the connecting assemblies. The stand columns are arranged at the top corners of the top frame and connected with the first transfer frame body through connecting assemblies. According to the stage lighting truss disclosed by the utility model, each double-row frame body and the first transfer frame body can be conveniently and quickly assembled in a stacked manner through the connecting assemblies, so that the stage lighting truss can be assembled according to the stage requirements, and the whole top truss is firmer while the assembly is convenient.

A rolling element bearing assembly (100) is disclosed, in particular a double-row tapered roller bearing, comprising a first bearing ring (2; 6) and a second bearing ring (2; 6), forming a bearing interior (8) therebetween, wherein rolling elements are arranged in the bearing interior to allow relative rotation of the first and second bearing rings, the rolling element bearing assembly further comprising a sealing assembly for sealing the bearing interior, the sealing assembly comprising a sealing frame (12) and a sealing element (16), the sealing frame being connected to the first bearing ring so that they rotate together, the sealing element comprising at least one primary sealing lip (24) for sealing the bearing interior and a secondary sealing lip (26) for sealing against external contamination, the sealing element being connected to the sealing frame, the primary sealing lip and the secondary sealing lip sealingly abutting an end surface (30) of the second bearing ring in the axial direction.

1. The name of the design product: toggle switch (MA25E09 double row 5-stage side toggle patch). 2. The use of the design product: used for connecting or disconnecting the circuit by toggling the switch handle. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: design 1 perspective view. 5. Design 1 is designated as the basic design.

The application provides a double-row lead frame resistance. The double-row lead frame resistance comprises a lead frame, a resistance, and the two ends of the first coil and the second coil are respectively installed with the lead wires; a protective cover; a cooling mechanism, the inside of the protective cover is fixedly connected with the supporting rod, the bottom end of the supporting rod is installed with the air bag; the top end of the supporting rod is internally installed with the fixed block and the fixed frame, the inside of the fixed block is slidably connected with the piston, the inside of the piston and the fixed block is respectively installed with the magnetic ring, the magnetic rings are attracted to each other; the inside of the fixed frame is slidably connected with the sliding rod, the sliding rod is fixedly connected with the piston, the side wall of the sliding rod is sleeved with the spring, and the two ends of the spring are respectively connected with the fixed frame and the piston; a cooling mechanism; a connecting mechanism. The double-row lead frame resistance provided by the application has the advantages of eliminating the self-induction of the coil, reducing the eddy current, and facilitating the dissipation of the heat inside the coil.

The invention relates to the technical field of double-row roller bearings, and discloses a double-row roller bearing provided with an anti-unbalance-loading mechanism, the double-row roller bearing provided with the anti-unbalance-loading mechanism comprises a protective shell, a plurality of sliding rods are slidably connected in the protective shell, a fixed plate is arranged on the sliding rods, two rotating plates are arranged at the two ends of the fixed plate respectively, and the rotating plates are arranged on the protective shell. Connecting plates are rotationally connected to the rotating plate, elastic pieces are arranged on every two connecting plates, limiting plates are rotationally connected to the connecting plates, arc-shaped plates are rotationally connected to the exteriors of every two limiting plates, a plurality of balls are rotationally connected to the interiors of the arc-shaped plates, and stabilizing mechanisms are arranged on the limiting plates. According to the device, the sliding rod, the arc-shaped plate and the ball are matched to drive the connecting shaft to be supported without hindering the motion trail of the connecting shaft, and when the connecting shaft is uneven in stress, the sliding rod is driven to retract to achieve visual warning of uneven stress; a stabilizing mechanism composed of a long plate, a spring and a telescopic rod drives the supporting stability of the arc-shaped plate and the balls to be enhanced.

1. The name of the design product: double row charging head. 2. The use of the design product: for charging portable energy storage devices. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

The invention provides an out-hole through construction method for a weathered silty mudstone tunnel at a broken shallow-buried section, which comprises the following steps of: grouting and reinforcing into a whole by adopting an earth surface steel floral tube at the earth surface position of a tunnel vault of weak surrounding rock according to field topography and geology; at the small pile number inlet section, n rows of steel pipes internally provided with reinforcing reinforcement cages are adopted as advanced pipe sheds to penetrate through the upper portion of the tunnel face of the large pile number outlet section, double-layer advanced small guide pipes are combined to serve as advanced supports, and system anchor rods and double rows of feet-lock anchor rods are adopted in a tunnel body to reinforce a profile steel arch frame, so that the overall stability of the supports is improved; during penetration, the support is closed into a ring in time by utilizing three-step footage construction, so that the overall stress of the support is improved, and the technical problems of large tunnel settlement, even possible roof fall and large safety risk during penetration construction of the weathered silty mudstone tunnel at the shallowly buried broken section are solved; and compared with the mode that manual excavation is combined with mechanical excavation is generally adopted in the shallowly-buried section of the tunnel in the prior art, the construction efficiency of tunnel penetration is improved.

The full-automatic four-head drilling machine comprises a supporting platform, a feeding mechanism, a laser drilling mechanism and a product positioning mechanism, the feeding mechanism comprises two rows of conveying belts which are arranged at the upper end of the supporting platform side by side and operate alternately, V-shaped limiting grooves are formed in the surfaces of the two rows of conveying belts, and the laser drilling mechanism is arranged on the supporting platform. The laser drilling mechanism comprises a four-head laser module and a translation mechanism, wherein the four-head laser module is fixed to the supporting platform and located above one end of the double-row conveying belt, and the translation mechanism can drive the four-head laser module to stretch across the double-row conveying belt to do reciprocating motion. The product positioning mechanism comprises a first side pushing positioning mechanism and a second side pushing positioning mechanism which are arranged at the upper end of the supporting platform and located on the two sides of the double-row conveying belt respectively. The punching device is simple in structure, and the punching efficiency of products can be greatly improved by arranging the double rows of conveying belts for alternate feeding and arranging the four-head laser module capable of translating.

A reciprocating swing type nail feeding mechanism for fastener conveying equipment comprises a double-row swing rod and a nail grabbing member, wherein the double-row swing rod is composed of a first swing rod and a second swing rod which are arranged in parallel at a certain distance. Two nail grabbing members are installed at each end of the double-row swing rod, and the nail grabbing members on the same side are elastically closed and distributed in a "V" shape through an elastic component. Through the swing of the double-row swing rod, the nail grabbing heads on the nail grabbing members on both sides can grab fasteners from the far end in turn and swing and convey them to the welding electrode, so as to stably and continuously convey fasteners for the welding equipment.

According to the motor conveying assembly, two parallel supporting seats are arranged in a rack of a roller conveying line, a plurality of rotating rollers are arranged between the corresponding supporting seats and the corresponding inner side wall of the rack, the axes of the rollers are perpendicular to the length direction of the rack, and a long-strip-shaped gap in the length direction of the rack is formed between the two supporting seats. A gap is formed between the formed double rows of rollers for placing the rotating shaft rotating through the base; in this way, the motor can be vertically placed on the base, and a rotating shaft of the motor cannot interfere with the roller conveying line; the motor can be directly hoisted to the base for installation of some accessories such as a hanging ring and a nameplate and then transportation is carried out, and the step of installation on an operation table is omitted.