2404 results about "Idler-wheel" patented technology

A numerical-control intelligent air-suction seed metering device, comprising a front shell 1, a rear shell 2, a seed metering disc 3, a built-in fan, a direct drive motor, and an individual seed metering unit intelligent controller 180, wherein a seed inlet 11, a seed outlet 12, and air inlets 13 are formed in the front shell, and the built-in fan is provided on the rear shell; seed suctioning holes 31 are formed in the seed metering disc, a seed filling chamber 7 is formed between the seed metering disc and the front shell, and a negative pressure chamber 8 is formed between the seed metering disc and the built-in fan; the seed metering disc is connected to a drive idler wheel 6; the direct drive motor comprises a stator core 5 and a plurality of magnetic steels 61, the stator core is fixed on the outer wall surface of a fixed drum, and the plurality of magnetic steels are fixed onto the drive idler wheel. In the technical solution, a built-in motor is used to directly drive the seed metering device, so that the seed metering device operates more stably and precisely; the speed of the built-in fan can be adjusted in real time by means of the individual seed metering unit intelligent controller on the basis of seeding requirements and crop types, so as to achieve a negative pressure suction force most suitable for the seed metering device, implement adjustment of the precision seeding rate of an individual seed metering device, and achieve the purpose of improving seeding precision.

The invention relates to a mushroom cultivation technology, and discloses a rotary frame type mushroom planting square cabin and a using method thereof.The rotary frame type mushroom planting square cabin comprises a rotary frame supporting structure installed in the planting square cabin, and a rotary rail is installed below the rotary frame supporting structure; the rotary track is arranged in the planting square cabin in a reciprocating snake shape, and is connected to form a closed comb-shaped curve track at the cabin door of the planting square cabin through a linear track; a detachable hanging bracket used for placing a grid frame is installed below the rotary rail, and the rotary rail is connected with the hanging bracket through suspended idler wheels. The gear transmission mechanism is positioned above the linear track, is used for driving the roller to rotate along the rotary track, and is connected with a chain on the rotary track through a gear; and the hanging bracket and the grid frame move along with the rolling wheels under the traction of the rolling wheels. According to the rotary frame type mushroom planting square cabin, the space of the planting square cabin can be utilized to the maximum extent, and the planting density and the production efficiency of the mushroom planting square cabin are improved.

The utility model provides a pipe jacking device for underground pipe network construction, which comprises a base, a movable guide rail is arranged on the base, a clamping sliding seat and a pipe jacking sliding seat are arranged on the movable guide rail, a pipe jacking sliding rail is arranged on the pipe jacking sliding seat, a pipe jacking seat is arranged on the pipe jacking sliding rail, a supporting clamping plate is arranged on the pipe jacking seat, and a pushing hydraulic cylinder is arranged on the supporting clamping plate. A top pressing plate is arranged at the top end of the pushing hydraulic cylinder, a clamping sliding rail is arranged on the clamping sliding seat, a positioning seat is arranged on the clamping sliding rail, a fixing assembly is arranged on the top of the positioning seat, supporting plates are arranged on the two sides of the positioning seat, a sliding through groove is formed in the middle of each supporting plate, and a clamping assembly is arranged in each sliding through groove. The pipe jacking head is loaded between the fixed idler wheel and the clamping idler wheel through the fixing assembly and the clamping assembly, the pipe jacking head can be put into a pit conveniently, position adjustment and pipe jacking operation are conducted on the pipe jacking head through the movable guide rail, the pipe jacking sliding rail and the clamping sliding rail, and the central axis of the pipe jacking head coincides with the central axis of a pipeline. And pipeline inclination is prevented from affecting construction.

The utility model discloses a self-power-generation cooling intelligent baby carriage which comprises a carriage frame, a power generation assembly, a battery, a fan assembly, a control panel and a plurality of idler wheels. The rollers are arranged at the bottom of the frame; the power generation assembly is arranged in at least one roller; the battery and the fan assembly are arranged on the frame; the control panel is arranged on the frame and electrically connected with the power generation assembly battery and the fan assembly. The roller can drive the power generation assembly to work during rotation and is used for providing electric energy to the control panel and the battery so as to drive the fan assembly to rotate; the power generation assembly arranged in the rolling wheel provides electric energy for the fan assembly and recycles the electric energy, the baby can be cooled, discomfort of the baby caused by hot weather is avoided, meanwhile, frequent charging of a user can be avoided, the use convenience is improved, and energy conservation and environment protection are achieved.

The gantry type welding manipulator comprises a liftable portal frame, a telescopic arm is arranged on a cross beam of the portal frame, a welding gun head is fixed to one end of the telescopic arm, a motor box and a transmission box are fixed to one side of the welding gun head, a supporting assembly is fixed between the transmission box and the welding gun head, and a sliding rail is arranged on one side of the portal frame; a sliding rail is arranged on the base, a scooter is arranged on the sliding rail, a rotating assembly is arranged in the middle of the scooter, a rectangular supporting plate is arranged on the rotating assembly, four rows of supporting rollers are arranged on the supporting plate, and a welding workpiece is placed on the supporting rollers. The telescopic arm can rotate by 180 degrees, welding can be conducted inwards from the two ends of a workpiece, the defect that the length of the telescopic arm is limited is overcome, the idler wheels on the supporting disc move along with a welding gun during welding, the effect of supporting a welding gun head and the telescopic arm is achieved, aging and loosening of equipment parts caused by center-of-gravity shift during long-time use are avoided, and the service life of equipment is prolonged.

The utility model discloses a double-roller radial continuous rotating peristaltic pump. A driving mechanism, a rotating mechanism, a hose mechanism and a pipe pressing mechanism are arranged on a mounting bedplate; the hose mechanism comprises an elastic hose, a cam and a supporting plate, the supporting plate is connected with the bearing seat and the cam, the bearing seat is connected with the mounting table plate, and the elastic hose surrounds the periphery of the cam in the radial direction; the pipe pressing mechanism comprises rollers and a guide assembly, the guide assembly is connected with the rollers and the rotating mechanism, and the rollers are symmetrically arranged on the two sides of the elastic hose. The rotating mechanism is connected with the driving mechanism, the driving mechanism drives the rotating mechanism to rotate, the rotating mechanism drives the guide assembly to rotate, the idler wheel installed on the guide assembly circumferentially rotates in the radial direction and extrudes the elastic hose, and continuous metering and conveying of fluid are achieved. The peristaltic pump has the advantages of being compact in structure, high in reliability, low in abrasion loss of the inner wall of the hose and the like, and solves the problem that fluid is polluted due to the fact that the inner wall of the hose is seriously abraded and a large number of particles are generated in an existing peristaltic pump.

The utility model relates to the technical field of robot track cleaning, and discloses a track robot track cleaning device which comprises a robot track, a machine frame, first limiting idler wheels, second limiting idler wheels, a cleaning brush, a driving mechanism and a dust collection mechanism. The two second limiting rollers are attached to the inner side and the outer side of the inner side wall of the rack, a cleaning brush is rotationally connected into the rack, a driving mechanism used for driving the second limiting rollers and the cleaning brush to rotate is installed on the rack, and a dust suction mechanism facing the cleaning brush is installed on the rack. Dust accumulated on the track can be cleaned conveniently, and the influence of the dust on walking of the robot on the track is prevented.

This invention provides a framework that allows for tool-free removal and subsequent replacement of conveyor idlers. The opposing framework uprights, which support outboard ends of each idler, respectively, include hinged axle holders / mounts that can be selectively swung into engagement with, and out of engagement with the axle ends. In this manner, the opposing outer idlers can be disengaged from each, respective, outboard axle holder and then slid out of corresponding inboard axle holders, which each define a socket for receiving the inboard axle end. Each hinged, outboard axle holder can be secured in an engaged orientation with the corresponding axle end using a pin, or other fastener that removably interengages with a lower, fixed portion of the outboard upright, where the two members overlap. The central idler is held in place in keyed slots in central uprights. The framework can define an equal troughing, unequal troughing or channel inset troughing framework arrangement.

The utility model discloses an adjustable agricultural environment-friendly mulching film recycling device which comprises a recycling box, a push-pull rod, a box body support, idler wheels, a sealing door, a mulching film recycling mechanism, an adjustable rolling assembly, a mulching film fixing assembly and a mulching film impurity removing mechanism. The mulching film recycling mechanism comprises a bottom supporting plate, a fixed vertical plate, a winding motor, a telescopic rod, a winding frame, a telescopic hydraulic rod, a movable vertical plate, a sliding groove, a sliding block, a rotating support, a rotating clamping plate and a clamping spring, and the mulching film impurity removing mechanism comprises a top supporting plate, a supporting rotating shaft, a lifting hydraulic rod, a brush support, an impurity removing brush, a rotating motor and a fan. The telescopic hydraulic rods are started to drive the telescopic rods to stretch out and draw back, the two winding frames move along with the telescopic hydraulic rods to adjust the distance to adapt to mulching films with different widths, and meanwhile the winding motor is started to automatically wind and recycle the mulching films. The distance between the impurity removal brush and the supporting rotating shaft is adjusted by starting the lifting hydraulic rod, and meanwhile the rotating motor is started to brush and remove impurities on the surface of the mulching film between the impurity removal brushes.

The invention discloses a method for installing a tail-sliding small boat roller at a dock stage, which is characterized in that the tail-sliding small boat roller originally installed at a mooring test stage is advanced to the dock stage to be installed, and the original water-facing operation is changed into ground operation, so that the safety risk caused by the water-facing effect is effectively solved, and the service life of the tail-sliding small boat is prolonged. Ground operation is carried out in the dock stage, a simulated small boat does not need to be manufactured, the risk of toppling of the simulated small boat does not exist, only one bilge auxiliary installation tool needs to be manufactured to install the bilge inclined roller, the horizontal roller can be installed according to the marking position of the center line of the tail gate, the installation period can be greatly shortened, the period length is fixed and controllable, and the installation efficiency is improved. And meanwhile, the labor intensity is also reduced.

The invention discloses a peristaltic pump and a material mixing method of the peristaltic pump. The peristaltic pump comprises a driving assembly, a pump head and an elastic hose, the elastic hose is installed in an annular groove in the pump head, and the rolling wheel in the pump head is driven by the driving assembly to rotate so as to extrude the elastic hose. The pump head comprises a pump shell and a planetary gear, the annular groove is located in the inner side of the pump shell, a gear ring of the planetary gear is fixed in the pump shell, a sun gear and at least three planetary gears are arranged on the inner side of the gear ring, a planetary shaft of each planetary gear extends upwards, each planetary shaft is sleeved with a rotatable idler wheel, and the idler wheels are arranged on the outer side of the pump shell. The sun wheel is driven to rotate through the driving assembly, and then all the planet wheels drive the corresponding rolling wheels to extrude the elastic hose. According to the peristaltic pump, the function of mixing solutions and the function of mixing the solutions with powder materials and solid materials are added, and the technical defects of an existing peristaltic pump are overcome.

A clutch for selectively coupling a motor and a motor vehicle drive train includes a housing having two pressure chambers, a shift sleeve, an actuating cap arranged for moving the shift sleeve, a piston, an idler gear and a mechanical engaging element. The piston is arranged in the housing between the two pressure chambers in a pressure-dependent, axially movable manner and is connected to the actuating cap. The mechanical engaging element is arranged between an axially movable component and an axially fixed component to engage the shift sleeve in two different axial positions. The axially movable component may be the shift sleeve or the piston, and the axially fixed component may be the housing or the idler gear.

The utility model provides a manual and automatic dual-purpose intelligent dustbin which comprises a dustbin body, an electric push rod and an execution box. One or more box doors are arranged on the box body, an arc-shaped connecting piece is fixed on the inner wall of each box door, and a roller is arranged at the tail end of each arc-shaped connecting piece; each box door corresponds to one electric push rod; each electric push rod comprises a motor and a telescopic rod, and the tail end of each telescopic rod is provided with a disc tightly attached to the corresponding idler wheel. A handle is arranged outside the box door; the execution box is arranged in the box body and fixed to the inner wall of the box body, the motor is arranged in the execution box, and the telescopic rod penetrates through the execution box and is fixedly connected with a disc outside the execution box. When it does not rain, the sensing probe senses that the human body gets close to or leaves the dustbin, and the dustbin door is opened or closed. When it rains, people manually press the manual switch button to open or close the box door.

An actuator assembly may comprise: a motor having a motor shaft; and a motor housing comprising a housing body accommodating at least a part of the motor and a housing cover coupled to the housing body, wherein an idler configured to tension a drive belt rotatably coupled to the motor shaft. The actuator assembly further comprises one or more couplers configured to allow the housing cover to be movable or rotatable relative to the housing body such that the idler fixed to the housing cover is movable or rotatable according to movement or rotation of the housing cover to adjust tension of the drive belt.

The clamping plate moving structure of the plate heat exchanger comprises a fixing plate, a moving clamping plate and a fixing frame, a connecting beam for connecting the fixing plate and the fixing frame is arranged between the fixing plate and the fixing frame, and the connecting beam comprises an upper connecting beam body and a lower connecting beam body which are vertically arranged at intervals. An upper connecting groove and a lower connecting groove are formed in the upper side and the lower side of the movable clamping plate respectively, the upper connecting beam and the lower connecting beam are connected into the upper connecting groove and the lower connecting groove respectively, rotatable idler wheels are arranged on the left side and the right side of the upper connecting groove respectively, and the idler wheels are matched with the upper connecting beam in a rolling mode. The rollers are arranged on the left side and the right side of the upper connecting beam, are rotationally connected with the movable clamping plate and are in rolling connection with the left side and the right side of the upper connecting beam, so that the height of the movable clamping plate can be reduced, consumables for manufacturing the movable clamping plate are reduced, and the manufacturing cost of the movable clamping plate is reduced; two rollers are arranged on the left and right sides of the upper connecting beam, so that the moving stability of the movable clamping plate can be enhanced.

A gear speed change device. The gear speed change device comprises a first planetary gear train (100). The first planetary gear train (100) comprises a first ring gear (101), a first planetary carrier (102), first planetary gears (103), a solar idle gear (104), and a planetary idle gear (105). The planetary idle gear (105) and the first planetary gears (103) are all mounted on the first planetary carrier (102); each first planetary gear (103) comprises a pinion (103a) and a large gear (103b) coaxially connected to the pinion (103a); the planetary idle gear (105) and the pinion (103a) are both engaged with the inside of the first ring gear (101) and are both engaged with the outside of the solar idle gear (104); the pinion (103a) can float along the radial direction thereof relative to the first planetary carrier (102), and the maximum radial floating amount of the pinion (103a) is greater than the maximum radial floating amount of the planetary idle gear (105); and the large gears (103b) of at least two first planetary gears (103) are arranged in a staggered manner in the axial direction, and projections thereof on a plane perpendicular to the axial direction overlap with each other. The gear speed change device has a relatively high torque load density, and can give consideration to a small volume, a large transmission speed ratio and a high torque load capability.

The invention discloses a variable-interval non-parallel multi-material clamping composite grabbing manipulator. The variable-interval non-parallel multi-material clamping composite grabbing manipulator comprises a material conveying assembly, a material grabbing clamping jaw assembly and a clamping jaw driving assembly. The two sets of material grabbing clamping jaw assemblies are symmetrically arranged on the two sides of the material conveying assembly, each material grabbing clamping jaw assembly comprises a clamping jaw supporting frame horizontally arranged above the roller support, driving idle wheels are rotationally installed at the two ends of each clamping jaw supporting frame through rotating shafts, and the driving idle wheels are sleeved with synchronous belts. A claw telescopic driving motor is vertically installed in the middle of the clamping claw supporting frame through a support, and a steering idle wheel used for adjusting the direction of the synchronous belt is further vertically installed on the side face of the claw telescopic driving motor. The manipulator in the technical scheme is simple in structure, flexible in clamping and high in space utilization rate; the problems that a traditional clamping jaw is large in thickness, and the space between goods shelf layers cannot be compressed are solved, and the clamping jaw can be used in areas with limited storage density and has the advantages of being light in weight and high in reliability.

The utility model discloses a cable constant tension wrapping tape wrapping device, which relates to the technical field of cable processing and comprises a support provided with a wire inlet groove. The winding disc is rotationally arranged on one side of the support, and the driving assembly is used for driving the winding disc to rotate; the swing arm is arranged on one side of the winding disc; a belt roller is provided with an end shaft. The end shaft of the belt roller is connected with the rotating disc, the protruding block is movably arranged in the shell, the rotating disc is rotationally connected with the shell, the idler wheel matched with the protruding block is arranged on the surface of the rotating disc, in the rotating process of the belt roller, the belt roller synchronously drives the rotating disc to rotate when rotating, the rotating disc drives the idler wheel on the surface of the rotating disc to constantly abut against the protruding block, and the protruding block retracts into the inner groove after being pressed. And after the roller is separated from the convex block, the elastic piece drives the convex block to reset, so that a damping effect is generated on rotation of the belt roller, the belt roller is prevented from automatically rotating due to inertia, and belting tension is kept.

The invention relates to the technical field of electric drive axles, and discloses a commercial vehicle electric drive axle with an idle wheel structure. A drive motor is connected with an input shaft, and the input shaft is provided with a first-stage driving gear; an idle gear and a secondary driving gear are arranged on the first intermediate shaft; the output end of the power takeoff is connected with a power takeoff driven wheel through an output shaft; a left half shaft, a right half shaft and a four-stage driven gear are arranged on the differential mechanism assembly; the hollow center shaft is arranged on the right half shaft in a sleeving mode, a third-level driving gear is arranged on the hollow center shaft, the second-gear gear and the first-gear gear are arranged on the hollow center shaft in an empty sleeving mode, and a gear shifting gear hub and a gear shifting gear sleeve are further arranged on the hollow center shaft. And a fourth-stage driving gear and a third-stage driven gear are arranged on the second intermediate shaft. The idle gear is adopted, the four-stage speed reduction structure is adopted under the first-gear working condition, the three-stage speed reduction structure is adopted under the second-gear working condition, a power takeoff gear and part of bearings can be omitted, the transmission chain structure is optimized, and the whole transmission chain is light.

The utility model relates to the technical field of robots, and discloses a fire-fighting inspection robot which comprises a robot body, a hidden groove internally provided with a triangular roller is formed in the bottom of the robot body, one side of the triangular roller is rotationally connected with a rhombic supporting frame, a limiting assembly is arranged on the back face of the robot body, and a handle is installed on the top of the back face of the robot body. When signals of the vertical robot are interrupted or damaged or manual carrying is needed, the triangular idler wheels hidden in the machine body and the handle are adopted to carry the robot manually, namely during normal operation, the idler wheels are hidden in the machine body, extra space is not occupied, and the overall attractiveness and daily operation of the robot are not affected. When signals are interrupted or damaged or manual carrying is needed, an operator can conveniently pull out the triangular rolling wheels to conduct manual operation, the installed triangular rolling wheels enable the robot to have higher stability, adaptability and safety when facing obstacles such as stairs, and the carrying difficulty is lowered.

The utility model discloses a welding mould assembly for an ultra-thin steel plate, which solves the problems of low operation efficiency, to-be-improved welding quality and inconvenience in detection in the existing welding of the ultra-thin steel plate. The welding mould assembly for the ultra-thin steel plate comprises an upper mould, a lower mould and a rotary working table for clamping the lower mould, one side of the rotary working table is connected with the rear end of a supporting arm, the front end of the supporting arm is connected with an idler wheel through a downward pressing elastic device, and an annular upper groove is formed in the middle of the idler wheel. According to the assembly, the main polar plate and the polar frame can be rapidly welded, the height difference, caused after welding, of the main polar plate and the polar frame assembly can be reduced, and unqualified welding seams can be detected.

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.

A developing cartridge may include: a casing; a developing roller extending in a first direction; a developing-roller gear; a coupling including a coupling gear; a first idle gear; a second idle gear; an agitator; a first agitator gear; and a protrusion. The developing-roller gear, the coupling, the first idle gear, the second idle gear, the first agitator gear, and the protrusion may be positioned at an outer surface of the casing. The protrusion may be positioned between a first axis of the coupling and a third axis of the first agitator gear in a second direction connecting the first and third axes. The protrusion may be positioned outside an addendum circle of the developing-roller gear, an addendum circle of the coupling gear, an addendum circle of the first idle gear, and an addendum circle of the second idle gear. The first agitator gear may be spaced apart from the protrusion in the first direction.

The utility model discloses a bending mechanism which comprises a machine frame and bending positioning assemblies arranged at the two ends of the machine frame, bending assemblies are oppositely arranged on the lower sides of the bending positioning assemblies, the bending positioning assemblies are provided with bending idler wheels B, the bending assemblies are provided with bending idler wheels A on the same plane with the bending positioning assemblies, and the bending idler wheels B are provided with bending idler wheels C. A bending cavity for bending a transverse rib is formed between the bending rollers A and the bending rollers B, and the bending rollers A located at the two ends of the bending cavity are driven by a first driving mechanism to do circular motion along the circle center adjacent to the bending rollers B, so that the two ends of the transverse rib are oppositely bent to form a main rib frame; the transverse ribs are bent into rectangular structures at a time through the bending positioning assembly and the bending assembly at the two ends of the machine frame, the quality of main rib frames in each batch can be kept consistent, continuous production can be carried out, and the production efficiency is high.

The utility model discloses a pipeline welding, fixing and clamping device which comprises a base, supporting plates are fixed to the left side and the right side of the base respectively, a clamping jaw is arranged on the inner side of each supporting plate and composed of two clamping arms, each clamping arm is in an L shape, the middle of each clamping arm is hinged to the corresponding supporting plate, and contact idler wheels are installed at the upper end and the lower end of each clamping arm respectively. The two clamping arms are driven by a vertical sliding block to be opened and closed, the vertical sliding block is assembled on the supporting plate and located below the two clamping arms, a front side inclined face and a rear side inclined face which make contact with the lower ends of the two clamping arms respectively are arranged, a supporting idler wheel is installed on the top of the vertical sliding block, an inclined face is arranged on the front side of the bottom of the vertical sliding block, and the vertical sliding block is driven by a longitudinal sliding block. The longitudinal sliding block is assembled on the base, the upper portion of the front end of the longitudinal sliding block is provided with an end slope in sliding fit with the bottom slope of the vertical sliding block, and the longitudinal sliding block is driven by a spiral transmission mechanism. The welding pipeline fixing device can well stabilize a welding pipeline and has high applicability.

The utility model discloses a triangular arc symmetry detection device for a circular knitting machine. The triangular arc symmetry detection device comprises a base and a supporting and stabilizing device, the supporting and stabilizing device is arranged, namely, under threaded transmission of the adjusting rod and the connecting strip, the long strip rods arranged on the left side and the right side of the connecting strip can push the sliding block, the sliding block can be matched with the guide rail plate to drive the connecting arm, the connecting arm can push the moving strip, and therefore the idler wheels arranged on the three side edges of the moving strip can efficiently clamp and abut against a knitting needle, and the knitting needle can be stably fixed. The flat detection state of the knitting needle is guaranteed, the placement flatness of the knitting needle is efficiently guaranteed, placement deviation and detection influence phenomena are reduced, a guide assembly is arranged, namely, under the connection and cooperation of a supporting arm, a guide wheel and a tension spring, the guide wheel can be made to conduct overall efficient moving supporting of a moving strip along a guide groove, the clamping and abutting stability is improved, and the working efficiency is improved. Therefore, the beneficial effects that the moving strips on the two sides assist in supporting and transverse movement guiding, and the clamping and stabilizing effects are deepened are achieved.

The utility model relates to the technical field of steering wheel manufacturing and processing, and discloses an excess material cutting device for steering wheel framework production, which comprises a steering wheel, the periphery of the steering wheel is arranged on the inner side of the upper part of a clamping mechanism, and a cutting mechanism is arranged on one side of the lower part of the clamping mechanism; the inner side of the lower portion of the rotating frame is rotationally connected to the upper end of the traction rod, the lower end of the traction rod is rotationally connected to the upper portion of the driving assembly, the driving assembly is installed in the rotating seat, and the middle of the limiting roller is rotationally connected to the upper end of the rotating frame and rotationally connected to the periphery of the steering wheel. The rolling assembly upper portion is arranged on the steering wheel lower portion. According to the excess material cutting device for steering wheel framework production, the second driving servo motor enables the driving idler wheel to drive the steering wheel to rotate and drive the electric push rod to extend, so that the cutter makes contact with the outer surface of the steering wheel, the cutter removes flashes of the steering wheel through rotation of the steering wheel, and operation is quite easy and convenient.

The utility model relates to the technical field of medical use, in particular to a medical trundle which comprises a support, a center shaft is arranged on the support, and idler wheels are arranged on the two sides of the support respectively and installed at the two ends of the center shaft respectively. A mounting space is formed in the lower side of the support, a brake trigger is vertically and rotatably mounted in the mounting space, the brake trigger comprises a brake plate which is arranged at the front end and obliquely faces the upper portion of the front side, and the two sides of the far end of the brake plate protrude outwards to form brake blocks correspondingly and extend into the two rolling wheels; a circle of convex teeth distributed at intervals in the circumferential direction are arranged in the middle of the inner side of the roller; the brake releasing device has the advantages of being higher in brake reliability, capable of being operated and controlled more conveniently to complete brake releasing and better in bearing effect.