59results about How to "Support structure is stable" patented technology

The utility model discloses a kind of steel pipe pile supporting structures, mainly include side slope, concrete layer, two pipe pile row groups and protective layer, the water surface of side slope and backwater surface are supported and reinforced by pipe pile row group, and prevent direct impact of water flow, simultaneously, by protective structure and concrete layer on the bottom and both sides waist surface of side slope are covered and protected, further improve the stability of side slope structure, and prevent soil layer from being impacted by water flow, thereby the overall of supporting structure is relatively stable, not easy to be affected by water flow, and the laying equipment of steel pipe pile is relatively mature, operation is relatively simple, without more artificial simultaneously, to improve the efficiency of construction.

The utility model relates to the technical field of bridge construction, and discloses a crossing movable platform attached to a high-altitude bridge, which comprises a space structure body, the top end of the space structure body is fixedly connected with the bottom surface of the bridge, and the space structure body comprises a plurality of polygonal annular frames; each polygonal annular frame comprises a polygonal bottom frame and vertical supporting frames distributed in the circumferential direction of the bottom frame. The multiple polygonal annular frames are sequentially arranged in the length direction of the bridge. The anti-falling net is arranged on the bottom surface and the circumferential direction of the space structure body in a tensioning manner; the climbing entertainment device is located in the space structure body and attached to the space structure body; the corners of the bottom frames of every two adjacent polygonal annular frames are aligned at the top points and connected through circumferential dampers used for consuming horizontal vibration, and metal dampers used for consuming vertical vibration are arranged between the top of the space structure body and the bridge. The technical problems that an ultra-long movable platform attached to a high-altitude bridge is greatly influenced by wind shock, and the sense of safety of tourists is low are solved.

The utility model belongs to the technical field of automobile brake systems, and particularly relates to a light-weight automobile brake disc. The outer side of the disc body is provided with an arc-shaped groove and embedded radiating fins, and the groove is filled with a heat-conducting silica gel layer; a mounting hole is formed in the center of the disc body, honeycomb lightening holes are formed around the disc body, and a tungsten carbide coating is sprayed on the inner wall; a first reinforcing rib and a second reinforcing rib are arranged on the two sides of the disc body and are welded and fixed through a connecting plate. The disc body is made of an aluminum alloy base material, the surface of the disc body is subjected to anodic oxidation and graphene coating treatment, and the disc body has both light weight and corrosion resistance. By optimizing the structural design, the weight is remarkably reduced while the strength is guaranteed, the heat dissipation performance is improved, and the automobile brake pad is suitable for a high-performance vehicle brake system and meets the requirements of modern automobiles for light weight and efficient heat dissipation.

This invention discloses a pipe roof support structure for reducing surrounding soil displacement, comprising a pipe, rails, and a worm gear. Two or more rails are arranged on the inner wall of the pipe, and each rail is equipped with two or more power switching mechanisms. The first end of the worm gear is fixedly connected to a support plate via a bearing seat, and the second end of the worm gear is fixedly connected to a base via a bearing seat. A fixed support plate is fixedly connected to the middle of the worm gear near the first end via a bearing. An impeller is coaxially fixedly connected between the worm gear and the fixed support plate. The base is slidably connected to the rails, and the support plate and fixed support plate are slidably connected to the rails. This invention provides power through the rotation of the impeller. The cooperation of the power switching mechanism and the guiding and reinforcing mechanism allows cement grout to flow into the soil around the pipe with a relatively small grouting pressure, making the soil around the pipe more stable.

The utility model discloses a fire-fighting smoke exhaust window capable of being opened by 70 degrees, and relates to the technical field of fire-fighting smoke exhaust windows. The aluminum alloy window comprises a latticed structure formed by aluminum alloy cross beams and aluminum alloy stand columns, and a plurality of opening windows are fixedly connected into grids formed by the aluminum alloy cross beams and the aluminum alloy stand columns. A plurality of steel pipes are fixedly connected to the intersection points of the aluminum alloy cross beams and the aluminum alloy stand columns in an inserted mode, a plurality of fixed windows are connected between the steel pipes through hardware, and a flat curtain wall is formed. The use of the aluminum alloy decorative pressing plate not only enhances the aesthetic degree of the curtain wall, but also provides a good protection effect, the arrangement of the opening window and the fixed window meets the requirements of ventilation, lighting and visual field of the curtain wall, the opening window can be produced in a pre-assembly mode and can be quickly mounted after arriving at the site, and the production cost is reduced. And a user can conveniently ventilate in the use process.

The utility model discloses engineering machinery multiway valve body accessories relates to multiway valve technical field, including main valve body, the both sides of main valve body are provided with a plurality of oil inlet and oil outlet, the oil inlet and oil outlet outside all are fixedly connected with helical line shunt passage, the inner chamber of helical line shunt passage is towards the oil inlet one side and is opened with the liquid inlet tapering runner, when oil liquid is in through oil inlet and oil outlet send, all first pass through helical line shunt passage, and the oil liquid of passing through helical line shunt passage first pass through liquid inlet tapering runner, effectively reduced the impact force of oil liquid, improved the stability of oil liquid. Oil liquid continues to flow in helical line shunt passage, gradually enters the export diffusion chamber, and the design of export diffusion chamber makes oil liquid can diffuse steadily when flowing out, then is sent into main valve body and is sent into oil equipment, further reduces the turbulent flow and energy loss of oil liquid.

The application relates to a blanking machine for cable sheaths, and belongs to the technical field of cable sheath processing, which comprises a base, a connecting seat arranged on the base, a stamping assembly arranged on the connecting seat and a forming die placed on the top surface of the base, a stamping end of the stamping assembly is located above the forming die to stamp the forming die. The application has the effect that efficient stamping operation of the cable sheath can be realized, thereby meeting the quality detection requirement.

The utility model discloses a steel sheet bin discharging device, including the fixing frame, be provided with the discharge component on the fixing frame, the discharge component includes the bin body and the feed tank, the bin body sets up the fixing frame, the feed tank sets up at the bin body bottom, install and be equipped with the second motor on the feed tank, the output of motor is connected and is equipped with the transmission assembly, be provided with the shielding component on the feed tank, the shielding component includes the fixed plate and the hinged seat, the fixed plate installs one end at the feed tank, install on the fixed plate on the hinged seat, the hinged seat is equipped with the cylinder on the hinged installation, to solve the background art mentioned in the prior art field, the steel sheet bin discharging device has the obvious function defect and the technical problem of low efficiency in material conveying link.

The invention relates to the field of mechanical automatic assembly, in particular to a fin feeding machine. The fin feeding machine comprises a feeding mechanism, a conveying mechanism, a fin discharging mechanism, an assembling mechanism and a carrying mechanism, the feeding mechanism is used for conveying fin materials, the conveying mechanism receives the fin materials and continues to convey the fin materials, and the fin discharging mechanism clamps the fin materials and presses the fin materials down to fall into the assembling mechanism; the assembling mechanism assembles fin materials and flat tube materials at intervals, and the carrying mechanism enables the equipment to automatically carry the flat tube materials or assembled finished products to a target position. According to the fin assembling device, the fin feeding efficiency and the quality of assembled products can be improved, and meanwhile the assembling requirements of fins and flat pipes of different specifications can be met.

The utility model discloses a novel pet car which comprises a car frame, the car frame comprises a folding box, a folding rotating assembly, a hand push rod, two rear wheel supports and two front wheel supports, the folding rotating assembly is located in the folding box, and the top ends of the rear wheel supports, the top ends of the front wheel supports and the bottom end of the hand push rod are all connected with the folding assembly; the hand push rod can stretch out and draw back and unlock the folding rotating assembly, and the rear wheel support and the front wheel support rotate and draw close to each other. The pet basket comprises an upper surrounding frame, a lower surrounding frame, a supporting frame, a bottom plate and surrounding cloth, the two ends of the supporting frame are hinged between the upper surrounding frame and the lower surrounding frame respectively, the bottom plate is installed on the inner side of the lower surrounding frame, and the surrounding cloth is connected between the upper surrounding frame and the lower surrounding frame; and the bottom plate is detachably mounted above the folding box. The pet basket has the advantages that folding operation steps are simplified, carrying and storage are convenient, and the pet basket is convenient to detach and clean.

This utility model relates to a road pile support structure adjacent to multiple high-voltage power towers. It includes a first retaining wall installed on one side of the road adjacent to the multiple high-voltage power towers and located at the road edge line between the tops of the road cutting slopes at both ends. Second retaining walls are respectively installed within the first retaining wall between two adjacent high-voltage power towers and on the side of the road cutting slope near both ends. Crown beams are installed at the top of both the first and second retaining walls. Tie beams are respectively installed between the second retaining wall between two adjacent high-voltage power towers and the first retaining walls located on both sides of the second retaining wall. Tie beams are also installed between the second retaining wall on the side of the road cutting slope near both ends and the first retaining wall. This utility model, by setting up the first and second retaining walls and coordinating with tie beams to form a combined support system, is easy to operate, highly safe, and economical, ensuring the safety of the power towers and surrounding areas.

This utility model provides an LED display module mask, including a mask body, which comprises two sets of first mask plates and a second mask plate. The second mask plate is located between the two sets of first mask plates, and multiple sets of connecting ribs are provided between the second mask plate and the two sets of first mask plates. The second mask plate is integrally formed with the two sets of first mask plates through the multiple sets of connecting ribs. Multiple sets of lamp holes are provided on the first mask plate, the second mask plate, and the connecting ribs. Multiple sets of buckles are provided on the top surface of the connecting ribs. This LED display module mask has a reasonable structural design, which can effectively protect the LED module. Its integrated mask body can resist the intrusion of external impurities, the lamp holes ensure the orderly arrangement of LED beads to optimize the display effect, and the buckles on the connecting ribs facilitate a secure connection with other components. In addition, the mask's good heat dissipation design can dissipate heat in time, ensuring the stable operation of the LED module and greatly improving the practicality and reliability of the product.

The utility model discloses a lithium battery with a high-strength protective shell in the field of lithium batteries, which comprises a protective shell, a battery module and a master control circuit board, the battery module is arranged in the protective shell, the master control circuit board is arranged in the protective shell, the battery module is electrically connected with the master control circuit board, an anti-collision plate is arranged on the top surface of the protective shell, and the master control circuit board is electrically connected with the anti-collision plate. A plurality of fixing plates are fixedly arranged on the side face of the protective shell, the fixing plates extend in the length direction of the protective shell, and a plurality of square aluminum frames are fixedly arranged on the surfaces of the fixing plates; according to the lithium battery with the high-strength protective shell, the anti-collision plate arranged on the top surface of the protective shell can effectively resist impact from the top and protect the internal battery module and the main control circuit board from being damaged, and the structural strength of the protective shell is enhanced by the plurality of fixed plates fixed on the side surface and the square-shaped aluminum frame on the fixed plates; therefore, the lithium battery can better keep integrity when being subjected to side impact, and the anti-collision performance is high.

This utility model relates to a drilling mechanism for construction pipelines, including a base plate, a connecting plate on top of the base plate, a fixing component on top of the base plate, and a drilling component on top of the connecting plate. The fixing component includes a frame fixedly connected to the top of the base plate, with a fixing clamp fixedly connected to one end of the frame. This drilling mechanism for construction pipelines allows for easy adjustment of the position of the movable clamp by rotating a torsion bar at one end of a threaded rod, firmly clamping the pipeline between the fixed clamp and the movable clamp. V-grooves on opposite sides of the fixed and movable clamps better accommodate pipelines of different diameters, increasing the contact area and improving stability. The anti-slip texture further enhances the friction between the clamp and the pipeline, effectively preventing the pipeline from slipping during drilling. This ensures the entire device is stably fixed to the pipeline for drilling operations, greatly improving drilling accuracy and guaranteeing construction quality.

This utility model discloses a photovoltaic module installation structure for the side of a traffic road, comprising: vertical columns spaced apart in the left-right direction, with a support plate on the front side of the vertical columns; connectors, with their left and right ends supported by corresponding support plates and connected and fixed to the support plates; a fixing component including a connecting block and a pressure block, the connecting block being connected to the connector, the pressure block being connected to the front end of the connecting block and protruding vertically from the connecting block, the pressure block, the connecting block, and the connector forming a groove; and a photovoltaic module, with its bottom and top embedded in the corresponding groove and pressed by the pressure block to fit snugly against the connector. This utility model achieves the positioning, installation, and fixing of the photovoltaic module by embedding its bottom and top into the groove and applying pressure with the pressure block to ensure a tight fit with the connector, thereby reducing installation gaps, avoiding vibration and noise caused by installation gaps, simplifying installation steps, reducing installation time and labor costs, and improving construction efficiency.

The utility model belongs to corrugated paperboard technical field especially relates to a kind of high buffering environment-friendly corrugated paperboard, intermediate layer is the core support foundation of corrugated paperboard, corrugated paper layer is set on the upper surface of intermediate layer, corrugated paper layer uses common corrugated structure, base plate is laid on the upper surface of corrugated paper layer, on the one hand can be combined with corrugated paper layer tightly, enhance the stability of corrugated paper layer structure, buffer layer is set on the upper surface of base plate, it is the key structure of realizing high buffering performance, upper surface layer covers on the upper surface of buffer layer, upper surface layer as the upper surface of corrugated paperboard, can protect buffer layer from the direct influence of external environment, support layer is set on the lower surface of intermediate layer, can provide stronger support force and stability, lower surface layer is laid on the lower surface of support layer, lower surface layer as the lower surface of corrugated paperboard, can protect support layer from external wear and environmental influence, ensure the structural stability and support performance of support layer.

The utility model relates to the technical field of numerical control machine tools, in particular to a numerical control machine tool tool setting device which comprises a base, a first electric telescopic rod is installed at one end of the top of the base, and according to the numerical control machine tool tool setting device, the telescopic action of a second electric telescopic rod is transmitted to a rack through a connecting lug to push the rack to do linear motion on a sliding rail; when the rack is driven by the second electric telescopic rod to move, the gear meshed with the rack can drive the threaded rod to rotate, the threaded rod rotates to drive the movable block to move in the axial direction of the threaded rod, and then the horizontal position of the tool setting gauge is driven to be adjusted through the supporting rod. The telescopic action of the first electric telescopic rod can drive the movable plate to move in the vertical direction to achieve height adjustment, the fixed plate and the supporting frame provide a stable supporting structure for the movable plate, and the sliding fit of the sliding block on the supporting frame ensures the stable movement of the movable plate driven by the first electric telescopic rod. The stability and reliability of the tool setting device are improved, operation is convenient, and practicability is better.

The utility model relates to the technical field of measuring tools, in particular to a convenient handheld seamless steel tube outer diameter comprehensive measuring tool. The device comprises a fixing frame, supporting rods are symmetrically arranged on the inner walls of the two sides of the fixing frame, a supporting wheel is arranged at the top of each supporting rod, a pair of sliding sleeves are symmetrically arranged at the top of the fixing frame, a measuring auxiliary assembly is movably arranged at the top of the fixing frame, and a detachable acrylic transparent plate is arranged on the measuring auxiliary assembly. A stable supporting structure is provided for the device through the supporting rods on the inner walls of the two sides of the fixing frame and the top riding wheels, it is ensured that the device cannot shake or deviate in the measuring process, meanwhile, the bottom of the bolt is tightly attached to the top of the outer wall of the seamless steel pipe all the time under the continuous action of the extrusion spring, and even if the surface of the steel pipe is uneven, the device cannot be damaged. And the continuity and the accuracy of measurement can be ensured, and measurement errors caused by untight attachment are avoided.

The utility model discloses a kind of support devices for fan inner formwork construction, including reinforcing bar main body, ring piece is set in the middle part of reinforcing bar main body, circular through-hole is dug in the middle part of ring piece, the inner diameter of circular through-hole is matched with the outer diameter of reinforcing bar main body, ring piece is sleeved on reinforcing bar main body, and is welded together with reinforcing bar main body, reinforcing bar head is correspondingly provided on the both sides of reinforcing bar main body upper portion.The utility model sets ring piece in the middle part of reinforcing bar, and sets reinforcing bar head on the both sides of reinforcing bar upper portion, forms a stable support structure, enhances the overall bearing capacity, can effectively support the weight of inner formwork and scaffold, ensure the stability and safety of formwork in construction process, to improve the construction quality of fan foundation.

The utility model discloses an elevator shaft self-overturning type operation platform relates to building construction auxiliary equipment technical field, solves the platform installation stability of prior art is insufficient, sets up the hidden danger of safety is bigger, and the installation and the inconvenient problem of use in the field. The utility model discloses two parallel corresponding setting right triangle frame, two right triangle frame are connected through connecting rod between, be provided with the limit rod on the right triangle frame, and the lower end of right triangle frame is all hinged with support rod, and support rod cooperates with limit rod, and limit rod can limit the rotation angle of support rod, be provided with telescopic push rod for and elevator shaft inner wall cooperation on the right triangle frame. Through the support rod lap joint on the floor, form the stable support base to whole operation platform, through telescopic push rod and elevator well wall cooperation, provide powerful lateral support force, ensure that platform and well wall closely adhere to, effectively prevent the shaking and displacement, provide stable work environment for construction personnel.

The utility model relates to the field of seat adjusting devices, and discloses a seat adjusting device and a passenger car seat comprising the same, and the seat adjusting device comprises at least two seat frames which are parallel, opposite and arranged at intervals; the transverse moving mechanism comprises a guide rod and a guide sleeve, the guide rod and the guide sleeve are arranged in parallel, the guide rod is coaxially nested in the guide sleeve, the guide sleeve is arranged on the seat frame, the guide rod is connected with the seat, and the guide rod can slide to drive the seat to transversely move relative to the guide sleeve. By arranging the seat frame, a stable supporting structure can be provided for the whole seat adjusting device, and fixing of the guide sleeve and smooth sliding of the guide rod are ensured; through cooperation of the guide rods and the guide sleeves, the seats can transversely move in the direction of the guide rods on the basis of the coaxial nesting telescopic principle of the guide rods, so that the distance between the seats is conveniently adjusted, passengers can adjust the positions of the seats according to own needs by adjusting the distance between the seats, and the comfort and privacy of the passengers can be remarkably improved.

The utility model discloses a grinding machine bracket for cutter grinding, and relates to the technical field of grinding machine auxiliary equipment. The grinding machine comprises a grinding machine body and further comprises a base, a positioning rotating shaft is installed at the bottom of the base, a sleeve is installed on a table top of the grinding machine body, the positioning rotating shaft is movably inserted into the sleeve, a fastening screw is inserted into the side wall of the sleeve, and one end of the fastening screw penetrates through the side wall of the sleeve and then abuts against the side wall of the positioning rotating shaft. A sliding groove is formed in the top face of the base and corresponds to a grinding wheel of the grinding machine, a sliding block is installed in the sliding groove in a matched mode, and an adjusting assembly is arranged at the end, away from the grinding wheel, of the sliding block. Stable support is provided for cutter grinding through the base, the sliding block and other structures, the risk that operators are injured is greatly reduced, the distance between the sliding block and a grinding wheel of a grinding machine is controlled through the adjusting assembly, the position and angle of the bracket are adjusted through the positioning rotating shaft, the consistency of the cutter grinding angle is guaranteed, and the grinding efficiency is improved. And the grinding quality of the cutter is effectively improved.

This invention discloses an integrated grabbing and releasing surface deployment device suitable for soft structures. The deployment device includes two rhomboid linkage mechanisms, a release hoist, a remote-controlled release hook, a grabbing hoist, two half-shells, and a short cable. The length of the release hoist is greater than the length of the grabbing hoist. The top end of the release hoist is connected to the top end of the short cable. The bottom end of the short cable is connected to the top end of the remote-controlled release hook. The bottom end of the remote-controlled release hook is connected to the top end of the grabbing hoist. The two half-shells are arranged horizontally opposite each other, and both ends are hinged together by the rhomboid linkage mechanisms. The top end of the rhomboid linkage mechanisms is connected to the bottom end of the grabbing hoist. The bottom end of the release hoist is connected to the middle of the two half-shells. The above device has a simple deployment structure, is easy to operate, enables repeated grabbing and releasing, allows for rapid deployment, requires no lifting points on the product, has no attachments that enter the water with the product, and effectively solves the problem of product deformation.

The utility model relates to the field of electric toothbrushes, and provides a plugging structure for a sectional toothbrush head and an electric toothbrush, the plugging structure comprises a shaft sleeve and a connecting seat, the shaft sleeve is arranged at the end part of a second body, and a pair of elastic clamping blocks are arranged on two sides of the shaft sleeve; the connecting base is arranged at the top of the toothbrush body, a fixed clamping block is arranged on the outer side wall of the connecting base, at least part of the projection of the elastic clamping blocks on the connecting base is overlapped with the fixed clamping block, and at least part of the pair of elastic clamping blocks abuts against the fixed clamping block all the time, so that the second body is suitable for being inserted into the connecting base at any angle. The electric toothbrush comprises a pluggable structure. The elastic clamping blocks are at least partially overlapped with the fixed clamping block in the projection range of the connecting seat, so that the pair of elastic clamping blocks always at least partially abut against the fixed clamping block, no matter what rotation angle the second body is located, the elastic clamping blocks can form a reliable connection relation with the fixed clamping block, and the reliability of the second body is improved. Therefore, the second body can be smoothly inserted into and pulled out of the connecting seat of the toothbrush main body at any angle.

This utility model provides a ship auxiliary support device, relating to the field of auxiliary support technology, for installation within the abdominal cavity of a ship's skeletal structure. The auxiliary support device includes: two support seats disposed within the abdominal cavity and respectively connected to two surfaces of the skeletal structure; a pressure sensor disposed on one of the support seats and connected to one surface of the skeletal structure; and a telescopic component, with both ends hinged to the two support seats. The telescopic component and the pressure sensor are signal-connected to the ship's control unit. The pressure sensor can send pressure signals to the control unit, which can control the telescopic length of the telescopic component based on the pressure signals. This auxiliary support device effectively solves the problems of poor stability and unadjustable support force of traditional wooden wedge supports, extends the service life of the structure, improves the ship's operational efficiency, and enhances the ship's operational safety.

The utility model relates to the technical field of supports for packaging in silicon steel strip production, and discloses a support for packaging in silicon steel strip production, which comprises a main body mechanism and a supporting mechanism, the supporting mechanism is fixedly arranged in the main body mechanism, and the main body mechanism comprises a support main body, a base and a stand column. A base is fixedly installed at the bottom end of the support body, a plurality of stand columns are fixedly installed on the base, and the stand columns are perpendicular to the base. The movable block of the support can flexibly slide in the sliding groove of the bottom plate and is fixed through the positioning pin, the position can be rapidly adjusted according to the width of silicon steel strips, and accurate positioning of the silicon steel strips with different widths is achieved. By means of the adjustable structure, the strip materials can be effectively prevented from deviating in the placing process, an accurate initial position is provided for subsequent packaging work, and the packaging efficiency is improved.

The utility model relates to the technical field of folding beds, and discloses a folding bed which comprises a first fixing frame, a first bed body and a second bed body, the first fixing frame comprises a first fixing block and a second fixing block, the first fixing block and the second fixing block are oppositely arranged in a spaced mode in the first direction, and the first direction is perpendicular to the vertical direction; the first bed body is rotatably arranged on the first fixing block and the second fixing block, and the rotating axis of the first bed body is parallel to the first direction; the second bed body is rotatably arranged on the first fixing block and the second fixing block, and the rotating axis of the second bed body is parallel to the first direction; wherein the first bed body comprises two first sub-bed bodies which can rotate relatively, and the second bed body comprises two second sub-bed bodies which can rotate relatively, so that the folding bed solves the technical problems that when the unfolding area of the folding bed is large, the occupied space of the folding bed is enlarged when the folding bed is stored, the portability of the folding bed is poor, and the occupied storage space is large.

The utility model discloses a cutting device for vehicle seat cushion production, and belongs to the technical field of vehicle seat cushion production. The cutting machine comprises a cutting machine body provided with a cutting tool bit, two limiting assemblies are arranged on the top face of the cutting machine body, an auxiliary assembly is arranged on the cutting tool bit, each limiting assembly comprises a rotating rod and two bases, the two bases are installed on the two side walls of the cutting machine body, a limiting plate is movably arranged between the two bases, and a round hole is formed in the limiting plate. The rotating rod is movably arranged in the round hole, a mounting groove is formed in one side in the round hole, and a second spring is mounted in the mounting groove. The base and the circular ring provide a stable supporting structure, the rigidity of a moving track of the limiting plate is ensured, stress deformation is avoided, the limiting plate directly presses the side edge of a material, the material is prevented from transversely sliding during cutting, it is ensured that a notch is straight, the clamping plate is automatically embedded into the clamping groove, locking does not need additional operation, and efficiency is improved.

The utility model belongs to the technical field of hub motors, and discloses a one-way transmission planet carrier for a hub motor, which comprises a fixedly arranged planet carrier inner ring. A planet carrier outer ring which is coaxially arranged is arranged on the outer side of the planet carrier inner ring, a plurality of shaft columns are connected to the upper end of the planet carrier outer ring, the shaft columns and the planet carrier outer ring are coaxially arranged, the shaft columns are annularly and uniformly distributed around the central axis of the planet carrier outer ring, and the shaft columns are used for mounting planet wheels; an annular raceway is formed between the outer side wall of the planet carrier inner ring and the inner side wall of the planet carrier outer ring; a plurality of cylindrical rollers are arranged in the roller path, the cylindrical rollers and the planet carrier inner ring are coaxially arranged, and the width of the roller path in the radial direction of the planet carrier inner ring is equal to the diameter of the cylindrical rollers; a plurality of special-shaped rollers are arranged in the roller path, and the special-shaped rollers and the cylindrical rollers are coaxially arranged; the problems that in the prior art, a one-way transmission planet carrier is unstable in rotation and large in vibration noise due to separation of an inner ring and an outer ring are solved.