CN209008641U

CN209008641U - Electric cart for going-up stairs

Info

Publication number: CN209008641U
Application number: CN201821661488.2U
Authority: CN
Inventors: 潘秀兰
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-10-15
Filing date: 2018-10-15
Publication date: 2019-06-21
Anticipated expiration: 2028-10-15

Abstract

A kind of electric cart for going-up stairs, its main shaft (9) is driven by a direct current generator (13), main shaft both ends are movably connected with wheel carrier cruciferous (15), its end is equipped with wheel (2) and its middle part of first gear (1) is equipped with second gear (4), gear wheel (6) are fixedly connected on main shaft, first gear is meshed by second gear with gear wheel；Electromagnetic clutch (8) are equipped between gear wheel and wheel carrier, electromagnetic clutch is controlled by a controller.Originally different size stair can be adapted to by climbing building device, and during climbing building, when the depth of stairway step or smaller height, wheel and wheel carrier are rotated synchronously；When the depth of stairway step or larger height, controller makes wheel carrier rotation pause a moment and wheel is continued to rotate by electromagnetic clutch, then rotate synchronously again wheel and wheel carrier, when wheel carrier turns an angle, adjacent wheel is respectively rested on adjacent step, and building movement is climbed in realization.

Description

Electric cart for going-up stairs

Technical field

The present invention relates to a kind of stairs-movers, for transporting cargo on stair.

Background technique

Transporting heavier cargo for the people weaker to physical strength on stair is a difficult thing, it is therefore necessary to be provided A kind of stairs-mover, to mitigate the burden for transporting cargo.

Summary of the invention

The technical problem to be solved in the present invention is to provide a kind of electric cart for going-up stairs, with facilitate will be on heavier goods handling Building.

The technical scheme is that a kind of electric cart for going-up stairs comprising vehicle frame, wheel 2, main shaft 9, main shaft is by a direct current Motor 13 drives, characterized in that main shaft both ends have been movably connected with wheel carrier 15, and wheel carrier is made of four spokes 16, shape For cross, the end of each spoke is equipped with the first mandrel 3, and the middle part of each spoke is equipped with the second mandrel 5, is cased with vehicle on the first mandrel Wheel and first gear 1, first gear are located on the inside of wheel and are fixedly connected with wheel, and second gear 4 is cased on the second mandrel, Gear wheel 6 is fixedly connected on main shaft, first gear is meshed with the second gear, and second gear is meshed with gear wheel；First The diameter of gear is less than the diameter of wheel, and the diameter dimension of wheel is less than the height dimension of stairway step, the center of wheel carrier to vehicle The size for taking turns the distance of outer ledge is greater than the height dimension of stairway step, and the number of teeth of first gear is less than the number of teeth of gear wheel, Electromagnetic clutch 8 is equipped between gear wheel and wheel carrier, electromagnetic clutch is controlled by a controller.

Its working principle is that electromagnetic clutch is attracted when going upstairs, direct current generator drives main shaft rotation, and wheel carrier is in stair Upper rolling, wheel rotate on the step plane of stair, and when wheel carrier turns an angle, adjacent wheel is respectively rested on phase On adjacent step, building movement is climbed in realization.

The characteristics of it is invented is originally to climb building device to adapt to different size stair, without adjusting the length of spoke, when When the depth or smaller height of stairway step, electromagnetic clutch is in closed state, and wheel and wheel carrier rotate synchronously；When stair platform When the depth dimensions of rank are larger or the height dimension of step is larger, make electromagnetic clutch separation a moment, vehicle wheel rotation and wheel carrier are not Rotation, wheel are attracted electromagnetic clutch again after stairway step walks a certain distance, and wheel and wheel carrier rotate synchronously, and work as wheel carrier When turning an angle, adjacent wheel is respectively rested on adjacent step, and building movement is climbed in realization.

Detailed description of the invention

Fig. 1 is the structural diagram of the present invention.

Fig. 2 is the A-A direction view of Fig. 1.

Fig. 3 is the structural schematic diagram of wheel carrier.

Fig. 4 is the circuit diagram of controller.

Attached drawing mark respectively indicates: 1- first gear, 2- wheel, the first mandrel of 3-, 4- second gear, the second mandrel of 5-, 6- gear wheel, 7- side plate, 8- electromagnetic clutch, 9- main shaft, 10- axle sleeve, 11- limit sleeve, 12- bottom plate, 13- direct current generator, 14- Transverse slat, 15- wheel carrier, 16- spoke, 17- battery, 18- climb hand, 20- stair.

Specific embodiment

A kind of electric cart for going-up stairs comprising vehicle frame, the two sides of vehicle frame are side plate 7, are connected with transverse slat 14, main shaft between side plate 9 are connect by axle sleeve 10 with side plate, and axle sleeve two sides are equipped with limit sleeve 11, and limit sleeve is fixedly connected with main shaft, main shaft both ends difference It is connected with wheel carrier 15, wheel carrier is made of four spokes 16, and shape is cross, and the end of each spoke is equipped with the first mandrel 3, the middle part of each spoke is equipped with the second mandrel 5, is cased with wheel 2 and first gear 1 on the first mandrel, first gear is located in wheel It side and is fixedly connected with wheel, second gear 4 is cased on the second mandrel, the drive end of electromagnetic clutch 8 is cased on main shaft, electricity The drive end of magnet clutch is fixedly connected with main shaft, and 6 inner circle of gear wheel is fixedly connected with the outer circle of the drive end of electromagnetic clutch, The driven end of electromagnetic clutch is fixedly connected with wheel carrier.

First gear is meshed with the second gear, and second gear is meshed with gear wheel；The diameter of first gear is less than vehicle The diameter of wheel, the diameter dimension of wheel are less than the height dimension of stairway step, the distance at center to the lateral wheel edge of wheel carrier Size be greater than the height dimension of stairway step, the number of teeth of first gear is less than the number of teeth of gear wheel.

Main shaft is driven by direct current generator 13, and direct current generator is mounted on bottom plate 12, and the both ends of bottom plate and the bottom end of side plate are solid Fixed connection, is equipped on bottom plate and provides the battery 17 of power supply for direct current generator and electromagnetic clutch.

According to the regulation of staircase design specification, the depth of stairway step is no less than 0.26m, and step height should not exceed 0.175m, the size range of the distance at the center of wheel carrier to lateral wheel edge is 0.176m thus, and the diameter of wheel is 0.07m The size of the distance at the center of wheel carrier to lateral wheel edge refers to that the distance at center to the first mandrel center of wheel carrier is added The radius of wheel, the ratio between number of teeth and the number of teeth of gear wheel of first gear are 10:23, the number of teeth of first gear and the tooth of gear wheel The ratio between number is related to the diameter of wheel, and the diameter of wheel is bigger, and the ratio between number of teeth of the number of teeth of first gear and gear wheel is also bigger, The drop point of a certain wheel is in step plane when so upstairs, and the drop point by front vehicle wheel is also in the plane by top bar.

When going upstairs, DC motor power is connected, controller is attracted electromagnetic clutch, and direct current generator drives main shaft rotation Turn, wheel carrier rolls on stair 20, and wheel rotates on the step plane of stair, hold vehicle frame handle 18 make vehicle frame to tiltedly on Side's inclination, when wheel carrier rotates 90 degree, adjacent wheel is respectively rested on adjacent step, and building movement is climbed in realization.

When the depth dimensions of stairway step are larger or the height dimension of step is larger, stroke accumulation mistake can be generated by climbing building device Difference, after what step the building Ji Pa device has climbed, wheel carrier wheel adjacent when rotating 90 degree cannot be respectively rested on adjacent step, At this moment separate electromagnetic clutch by controller, vehicle wheel rotation and wheel carrier does not rotate, wheel is walked in stairway step plane Accumulated error can be eliminated after a certain distance, is then attracted electromagnetic clutch again, and wheel and vehicle frame rotate synchronously, and make adjacent vehicle Wheel is respectively rested on adjacent step, and building movement is climbed in realization.

Electric stair climbing device on level land when walking, by clutch separation.

The controller can be a toggle switch, push the energization of side electromagnetic clutch, and electromagnetic clutch is inhaled It closes, the drive end of electromagnetic clutch is connect with driven end；Push the power-off of side electromagnetic clutch, electromagnetic clutch release, electromagnetism The drive end of clutch is separated with driven end.

More easily to eliminate accumulated error, the structure of Fig. 4 is can be used in controller comprising operational amplifier A1, operation The inverting input terminal of amplifier A1 meets bus M by resistance R1, and the inverting input terminal of operational amplifier A1 is grounded by resistance R2, The non-inverting input terminal of operational amplifier A1 meets bus M by variable resistance RW, and the non-inverting input terminal of operational amplifier A1 passes through electricity Hold C ground connection, resistance R3 is connected between the non-inverting input terminal and output end of operational amplifier A1, capacitor C is in parallel with key TA, operation The output end of amplifier A1 connects the base stage of triode T1, the emitter ground connection of triode T1, the collection of triode T1 by resistance R4 Electrode connects bus by the coil J of DC relay, and the cathode of diode D1 connects bus, and the anode of diode D1 meets triode T1 Collector, a termination bus of the normally opened contact J1 of DC relay, the other end of the normally opened contact J1 of DC relay is logical Cross the magnet exciting coil XQ ground connection of electromagnetic clutch；Bus M meets power vd D by power switch K1.

The working principle of controller is, when key TA unclamps, the non-inverting input terminal voltage of operational amplifier A1 is greater than reverse phase The voltage of input terminal, operational amplifier A1 export high level, triode T1 conducting, and the coil J of DC relay has electric current to pass through, The normally opened contact J1 of DC relay is closed, and the magnet exciting coil XQ of electromagnetic clutch is powered, and electromagnetic clutch is attracted；Key TA is closed It when conjunction, discharges capacitor C, the non-inverting input terminal voltage of operational amplifier A1 is zero, and operational amplifier A1 exports low level, three poles Pipe T1 cut-off, the magnet exciting coil XQ power-off of electromagnetic clutch, electromagnetic clutch release；After key TA rebounds, power supply passes through variable Resistance RW charges to capacitor C, and the voltage of capacitor C rises, when the voltage of capacitor C is greater than the voltage of operational amplifier inverting input terminal When, operational amplifier A1 exports high level, and the magnet exciting coil XQ of triode T1 conducting, electromagnetic clutch is powered, electromagnetic clutch It is attracted.

The resistance value of variable resistance RW is bigger, and the charging time of capacitor C is longer, and vice versa, adjusts variable resistance RW, can change Power transformation is held the charging time of C, and the charging time of capacitor is adjusted at 0.2 second or so.

When upstairs, power turn-on switch K1, wheel carrier rotation, the depth dimensions such as step are larger, climb after what step by one Lower key makes wheel carrier pause rotation a moment, and wheel then continues to rotate, and eliminates accumulated error.

Claims

1. a kind of electric cart for going-up stairs comprising vehicle frame, wheel (2), main shaft (9), main shaft are driven by a direct current generator (13), special Sign is that main shaft both ends have been movably connected with wheel carrier (15), and wheel carrier is made of four spokes (16), and shape is cross, respectively The end of spoke is equipped with the first mandrel (3), and the middle part of each spoke is equipped with the second mandrel (5), and wheel and the are cased on the first mandrel One gear (1), first gear are located on the inside of wheel and are fixedly connected with wheel, second gear (4) are cased on the second mandrel, in master Gear wheel (6) are fixedly connected on axis, first gear is meshed with the second gear, and second gear is meshed with gear wheel；First The diameter of gear is less than the diameter of wheel, and the diameter dimension of wheel is less than the height dimension of stairway step, the center of wheel carrier to vehicle The size for taking turns the distance of outer ledge is greater than the height dimension of stairway step, and the number of teeth of first gear is less than the number of teeth of gear wheel, Electromagnetic clutch (8) are equipped between gear wheel and wheel carrier, electromagnetic clutch is controlled by a controller.

2. electric cart for going-up stairs according to claim 1, characterized in that the distance at the center of wheel carrier to lateral wheel edge Size range is 0.176m, and the diameter of wheel is 0.07m, and the ratio between number of teeth and the number of teeth of gear wheel of first gear are 10:23.

3. electric cart for going-up stairs according to claim 1 or 2, characterized in that the controller includes operational amplifier A1, The inverting input terminal of operational amplifier A1 meets bus M by resistance R1, and the inverting input terminal of operational amplifier A1 passes through resistance R2 The non-inverting input terminal of ground connection, operational amplifier A1 meets bus M by variable resistance RW, and the non-inverting input terminal of operational amplifier A1 is logical Capacitor C ground connection is crossed, resistance R3 is connected between the non-inverting input terminal and output end of operational amplifier A1, capacitor C is in parallel with key TA, The output end of operational amplifier A1 meets the base stage of triode T1, the emitter ground connection of triode T1, triode T1 by resistance R4 Collector bus is connect by the coil J of DC relay, the cathode of diode D1 connects bus, and the anode of diode D1 connects three poles The collector of pipe T1, a termination bus of the normally opened contact J1 of DC relay, the normally opened contact J1's of DC relay is another End is grounded by the magnet exciting coil XQ of electromagnetic clutch；Bus M meets power vd D by power switch K1.