CN108729848A - A kind of maintenance suspension ladder for municipal science of bridge building - Google Patents

Abstract

The invention discloses a kind of maintenances for municipal science of bridge building to hang ladder, and structure includes：Wind case, hang rope ladder, motor, controller, radiator fan, pedestal, the top for hanging rope ladder is flexibly connected with the mechanical part inside winding case, the main shaft of motor is horizontally fixed on the right side of winding box outer wall by bolt, radiator fan is mounted on the inside grooves of controller front end by screw, the top level of pedestal is welded on the bottom end of winding case, controller is electrically connected by conducting wire with the rotor of motor, a kind of maintenance suspension ladder for municipal science of bridge building of the present invention operates suspension rope ladder by rolling up terraced device, the improved terraced upper end for being fixed on bridge of maintenance suspension for municipal science of bridge building is easy to operate can to carry out to rope ladder freely place and wind by remote controler, greatly improve the efficiency of inspection personnel.

Description

A kind of maintenance suspension ladder for municipal science of bridge building

Technical field

The present invention is a kind of maintenance suspension ladder for municipal science of bridge building, belongs to the terraced field of maintenance suspension.

Background technology

Rope ladder be it is a kind of be used for working at height, the tool of climbing, predominantly rope type when hot line maintenance, need Enter electric field by rope ladder, since rope ladder shakes serious operating personnel when climbing, there are rope ladders to fall off, operating personnel falls etc. Danger needs to realize and climbs the protection of rope ladder whole process fall arrest for present situation, and tool includes the insulating flexible ladder head with locking, band locking Coaster, falling proof device, being smoothed out for operating personnel's personal safety and upkeep operation can be effectively protected.

But prior art bridge is to ensure that bridge is in normal operating conditions, the inspection to be carried out always by the erosion of wind and rain It looks into, detect, assessment and maintenance and reinforcement.

Invention content

In view of the deficienciess of the prior art, it is an object of the present invention to provide a kind of maintenance suspensions for municipal science of bridge building Ladder, with solve bridge by wind and rain erosion be ensure bridge always be in normal operating conditions, the inspection to be carried out, detection, The problem of assessment and maintenance and reinforcement.

To achieve the goals above, the present invention is to realize by the following technical solutions：One kind is for municipal bridge work The maintenance suspension ladder of journey, structure include：Wind case, suspension rope ladder, motor, controller, radiator fan, pedestal, the suspension The top of rope ladder is flexibly connected with the mechanical part inside winding case, and the main shaft of the motor is horizontally fixed on winding by bolt The right side of box outer wall, the radiator fan are mounted on the inside grooves of controller front end, the top water of the pedestal by screw Flat welded is electrically connected by conducting wire with the rotor of motor in the bottom end of winding case, the controller, and the winding case is equipped with planet Gear arranges bar, driving straight-tooth, intermittent gear, synchronous pulley, gear-box, the terraced device of volume, the gear on the right side of the planetary gear with The lever machinery connection on the left of bar is arranged, the bar that arranges vertically is installed in the upper end for rolling up terraced device, and the driving straight-tooth level is solid It is scheduled on the upper end of intermittent gear and flexible connection, the axle center of the intermittent gear is welded on the rear end in synchronous pulley axle center, institute The worm screw and the gear of the terraced device of volume for stating gear-box are intermeshed；

Further, the planetary gear is by braces, the second output gear, the first output gear, pinion gear fixed frame, row The small tooth of star, driving gear, third output gear, lifting wheel post, bearing block, bearing composition, the bottom end of the braces passes through bolt It is fixed on the axle center of the second output gear, the outer wall of second output gear is flexibly connected with the outer wall of the first output gear, The small tooth of planet is set there are four being uniformly fixed on pinion gear fixed frame rear end, the external tooth of the small tooth of planet and driving gear External tooth is intermeshed, and first output gear is horizontally fixed on the left side of third output gear, the bottom end of the lifting wheel post It extends vertically through the center of bearing block and coordinates with the gear clearance on volume terraced device top, the bearing is vertically welded in winding case The stage casing of wall.

Further, the whole ladder bars are by roller arm, loose slot, spring, activity head, lever arm, jacking block, fixed link Head, push rod, cam composition, for the outer wall vertical of the roller arm through the center of loose slot and clearance fit, the spring is solid It is scheduled on the lower end of activity head and is flexibly connected with roller arm, the top of the activity head is fixed on jacking block by lever arm Bottom end, the fixed head is vertically installed in the top of lever arm, the front end of cam is installed on the left of the push rod, described Cam is mechanically connected by belt and planetary gear, bottom end and the terraced device clearance fit of volume of the roller arm.

Further, the driving straight-tooth is made of straight-tooth bar, ball bearing, ball bearing frame, cone pulley, support base, institute The axle center that straight-tooth bar is horizontally fixed on ball bearing is stated, the both ends of the ball bearing are welded between ball bearing frame, described Straight-tooth bar cone pulley, the cone pulley, support base wind case, the straight-tooth bar planetary gear.

Further, the intermittent gear is by No.1 tooth rest, the first heterotypic gear, movable belt wheel, transmission nose bar, second Heterotypic gear, transmission straight-bar composition, the No.1 tooth rest level are installed in the left side in the first heterotypic gear axle center, and described first The axle center of heterotypic gear and the axle center of movable belt wheel are mutually welded, and the activity belt wheel is connected by the outer wall activity of belt and cone pulley Connect, the external screw thread of the transmission nose bar bottom end with the internal thread clearance fit of the first heterotypic gear front end and be driven straight-bar machine Tool connects, and the second heterotypic gear level is installed in the left side of the first heterotypic gear.

Further, the synchronous pulley is by input gear, No. two wheel carriers, transmission ratch, driven pulley, unilateral pedestal group At the axle center of the input gear is fixed on the upper end of No. two wheel carriers and is intermeshed with the gear on the left of transmission ratch, institute The right side that driven pulley is horizontally fixed on transmission ratch outer wall is stated, the axle center of the unilateral pedestal is flexibly connected with transmission ratch, The driven pulley level is installed in the upper end of gear-box, and the unilateral pedestal is bolted in winding chamber interior wall Section.

Further, the gear-box is by thin type driving belt, replica ratch, pedestal, output gear, swivel bearing, snail Bar forms, and the outer wall clearance fit of the outer wall and replica ratch of the thin type driving belt, the output gear level is installed in The bottom end of base inner wall, the worm screw through the center of swivel bearing and are in same axle center, the worm screw with output gear External tooth and the gear of the terraced device bottom of volume be intermeshed, the thin type driving belt is vertically fixed on the lower end of synchronous pulley.

Further, the volume ladder device is by winding seat, equipment gear, synchromesh gear, motion bar, resetting spring, limiting tooth Head, winding slot, driving belt, driven pulley, tensioning wheel composition, the axle center of the equipment gear is bolted on winding seat Front end, the equipment gear connect by synchromesh gear with winding groove mechanical, and the winding slot level, which is installed in, winds seat top The center of end bearing, the motion bar extend vertically through the center of resetting spring and are interference fitted with limiting tooth head, the transmission The groove of belt inner wall is intermeshed with the groove of driven pulley outer wall, and the tensioning wheel is vertically fixed on the bottom of driving belt End.

Advantageous effect

A kind of maintenance suspension ladder for municipal science of bridge building of the present invention, pedestal is welded in the upper end for being fixed on bridge cylinder It is connected in the upper surface of cylinder, the main electronic box of controller connection bridge is powered, and motor driven to winding case, electricity Machine is external can be more convenient to repair, and hook is arranged at the bottom for hanging rope ladder, and on the one hand can regard counterweight prevents suspension rope ladder It excessively shakes, in addition hook can be arranged on ground interlocks, and so that suspension rope ladder is more stablized, controller is carried out by radiator fan Heat dissipation can ensure that it is operated in normal stabilization, prevent high temperature from burning internal component, and controller being capable of extraneous remote control mould Without the i.e. reachable bridge pier upper end maintenance of crane, being used as main driving gear by planetary gear can improve block service personnel Larger torque, and prevent the slippery phenomenon of gear generation when service personnel's cat ladder from causing danger, the roller arm for arranging bar exists When making the jacking block right side push away lever arm activity up and down carry out of roller arm can put down planetary driving lower cam driving push rod Hang rope ladder, so that suspension rope ladder is kept straight state when rising or decentralization, avoid the occurrence of stuck state, It has a rest under the connection of gear and gear-box, volume carries device can complete interlocking, peace of the guarantee service personnel in climbing in transmission process Entirely, once it can be the synchronous gear that limiting tooth head will wind slot under the active force of resetting spring to reach motor stalls motion bar Take turns stuck, the further interlocking of completion, the improved upper end for conserving suspension ladder and being fixed on bridge for municipal science of bridge building It is easy to operate to carry out that rope ladder freely place and wind by remote controler, greatly improve the effect of inspection personnel Rate.

The present invention rolls up terraced device and is operated to suspension rope ladder, and the improved maintenance suspension ladder for municipal science of bridge building is solid Be scheduled on bridge upper end it is easy to operate can be carried out by remote controler to rope ladder carry out freely place and wind, greatly improve The efficiency of inspection personnel.

Description of the drawings

Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other feature of the invention, Objects and advantages will become more apparent upon：

Fig. 1 is a kind of surface structure schematic diagram of maintenance suspension ladder for municipal science of bridge building of the present invention.

Fig. 2 is a kind of internal structure schematic diagram of maintenance suspension ladder for municipal science of bridge building of the present invention.

Fig. 3 is Fig. 2 first parts of the present invention structural schematic diagram.

Fig. 4 is Fig. 2 second parts structural schematic diagram of the present invention.

Fig. 5 is a kind of drive mechanism schematic diagram of maintenance suspension ladder for municipal science of bridge building of the present invention.

In figure：Wind case -1, suspension rope ladder -2, motor -3, controller -4, radiator fan -5, pedestal -6, planetary gear - 101, arrange bar -102, driving straight-tooth -103, intermittent gear -104, synchronous pulley -105, gear-box -106, the terraced device -107 of volume, Braces -1011, the second output gear -1012, the first output gear -1013, pinion gear fixed frame -1014, the small tooth-of planet 1015, driving gear -1016, third output gear -1017, lifting wheel post -1018, bearing block -1019, bearing -10110, cunning Take turns bar -1021, loose slot -1022, spring -1023, activity head -1024, lever arm -1025, jacking block -1026, fixed head (1027, push rod -1028, cam -1029, straight-tooth bar -1031, ball bearing -1032, ball bearing frame -1033, cone pulley - 1034, support base -1035, No.1 tooth rest -1041, the first heterotypic gear -1042, movable belt wheel -1043, transmission nose bar - 1044, the second heterotypic gear -1045, transmission straight-bar -1046, input gear -1051, No. two wheel carriers -1052, transmission ratch - 1053, driven pulley -1054, unilateral pedestal -1055, thin type driving belt -1061, replica ratch -1062, pedestal -1063, defeated Go out gear -1064, swivel bearing -1065, worm screw -1066, winding seat -1071, equipment gear -1072, synchromesh gear -1073, Motion bar -1074, resetting spring -1075, limiting tooth head -1076, winding slot -1077, driving belt -1078, driven pulley - 1079, tensioning wheel -10710.

Specific implementation mode

To make the technical means, the creative features, the aims and the efficiencies achieved by the present invention be easy to understand, with reference to Specific implementation mode, the present invention is further explained.

- Fig. 5 is please referred to Fig.1, the present invention provides a kind of maintenance suspension ladder for municipal science of bridge building：Its structure includes： Wind case 1, suspension rope ladder 2, motor 3, controller 4, radiator fan 5, pedestal 6, top and the winding case 1 of the suspension rope ladder 2 Internal mechanical part flexible connection, the main shaft of the motor 3 are horizontally fixed on the right side of winding 1 outer wall of case, institute by bolt The inside grooves that radiator fan 5 is mounted on 4 front end of controller by screw are stated, the top level of the pedestal 6 is welded on winding The bottom end of case 1, the controller 4 are electrically connected by conducting wire with the rotor of motor 3, the winding case 1 be equipped with planetary gear 101, Arrange bar 102, driving straight-tooth 103, intermittent gear 104, synchronous pulley 105, gear-box 106, the terraced device 107 of volume, the planet tooth Gear on the right side of wheel 101 is connect with the lever machinery for arranging 102 left side of bar, and the arrangement bar 102 is vertically installed in volume ladder device 107 Upper end, the driving straight-tooth 103 is horizontally fixed on upper end and the flexible connection of intermittent gear 104, the intermittent gear 104 Axle center be welded on the rear end in 105 axle center of synchronous pulley, the gear of the worm screw of the gear-box 106 and the terraced device of volume 107 is mutually nibbled It closes, the planetary gear 101 is by braces 1011, the second output gear 1012, the first output gear 1013, pinion gear fixed frame 1014, the small tooth 1015 of planet, driving gear 1016, third output gear 1017, lifting wheel post 1018, bearing block 1019, bearing 10110 compositions, the bottom end of the braces 1011 are bolted on the axle center of the second output gear 1012, second output The outer wall of gear 1012 is flexibly connected with the outer wall of the first output gear 1013, and the small tooth of the planet 1015 sets that there are four uniformly solid It is scheduled on 1014 rear end of pinion gear fixed frame, the external tooth of the external tooth and driving gear 1016 of the small tooth of the planet 1015 is intermeshed, First output gear 1013 is horizontally fixed on the left side of third output gear 1017, and the bottom end of the lifting wheel post 1018 is hung down It is straight to coordinate through the center of bearing block 1019 and with the gear clearance on 107 top of the terraced device of volume, 10110 vertical welding of the bearing In the stage casing of winding 1 inner wall of case, the whole ladder bars 102 are by roller arm 1021, loose slot 1022, spring 1023, activity head 1024, lever arm 1025, jacking block 1026, fixed head 1027, push rod 1028, cam 1029 form, the roller arm 1021 Outer wall vertical runs through the center of loose slot 1022 and clearance fit, the spring 1023 are fixed on the lower end of activity head 1024 And it is flexibly connected with roller arm 1021, the top of the activity head 1024 is fixed on jacking block 1026 by lever arm 1025 Bottom end, the fixed head 1027 are vertically installed in the top of lever arm 1025, and the left side of the push rod 1028 is installed in cam 1029 front end, the cam 1029 are mechanically connected by belt and planetary gear 101, the bottom end of the roller arm 1021 and volume 107 clearance fit of terraced device, the driving straight-tooth 103 is by straight-tooth bar 1031, ball bearing 1032, ball bearing frame 1033, cone pulley 1034, support base 1035 forms, and the straight-tooth bar 1031 is horizontally fixed on the axle center of ball bearing 1032, the ball bearing 1032 both ends are welded between ball bearing frame 1033,1031 cone pulley 1034 of the straight-tooth bar, the cone pulley 1034, support base 1035 winding casees 1,1031 planetary gear 101 of the straight-tooth bar, the intermittent gear 104 are different by No.1 tooth rest 1041, first Type gear 1042, movable belt wheel 1043, transmission nose bar 1044, the second heterotypic gear 1045, transmission straight-bar 1046 form, and described one Number 1041 level of tooth rest is installed in the left side in 1042 axle center of the first heterotypic gear, the axle center of first heterotypic gear 1042 with The axle center of movable belt wheel 1043 is mutually welded, and the activity belt wheel 1043 is flexibly connected by belt with the outer wall of cone pulley 1034, institute State the internal thread clearance fit of 1042 front end of external screw thread and the first heterotypic gear of transmission nose bar 1044 bottom end and with transmission directly Bar 1046 is mechanically connected, and 1045 level of the second heterotypic gear is installed in the left side of the first heterotypic gear 1042, the synchronization Belt wheel 105 is by 1051, No. two wheel carriers 1052 of input gear, transmission ratch 1053, driven pulley 1054,1055 groups of unilateral pedestal At the axle center of, the input gear 1051 be fixed on No. two wheel carriers 1052 upper end and with the gear in 1053 left side of transmission ratch Intermeshing, the driven pulley 1054 are horizontally fixed on the right side of transmission 1053 outer wall of ratch, the unilateral pedestal 1055 Axle center is flexibly connected with transmission ratch 1053, and 1054 level of the driven pulley is installed in the upper end of gear-box 106, described unilateral Pedestal 1055 is bolted on the stage casing of winding 1 inner wall of case, and the gear-box 106 is by thin type driving belt 1061, replica Ratch 1062, pedestal 1063, output gear 1064, swivel bearing 1065, worm screw 1066 form, the thin type driving belt 1061 Outer wall and replica ratch 1062 outer wall clearance fit, 1064 level of the output gear is installed in the bottom of 1063 inner wall of pedestal End, the worm screw 1066 through the center of swivel bearing 1065 and are in same axle center, the worm screw with output gear 1064 1066 external tooth and the gear of 107 bottom of the terraced device of volume are intermeshed, and the thin type driving belt 1061 is vertically fixed on synchronous belt The lower end of wheel 105, the volume ladder device 107 is by winding seat 1071, equipment gear 1072, synchromesh gear 1073, motion bar 1074, multiple Position spring 1075, limiting tooth head 1076, winding slot 1077, driving belt 1078, driven pulley 1079, tensioning wheel 10710 form, The axle center of the equipment gear 1072 is bolted on the front end of winding seat 1071, and the equipment gear 1072 passes through synchronization Gear 1073 is mechanically connected with winding slot 1077, and 1077 level of winding slot is installed in winding 1071 top bearing of seat The heart, the motion bar 1074 extend vertically through the center of resetting spring 1075 and are interference fitted with limiting tooth head 1076, the biography The groove of 1078 inner wall of dynamic belt is intermeshed with the groove of 1079 outer wall of driven pulley, and the tensioning wheel 10710 is vertically fixed In the bottom end of driving belt 1078.

Pedestal 6 is welded in the upper surface of cylinder, 4 connecting bridge of controller by the upper end that bridge cylinder is fixed in the present invention The main electronic box of beam is powered, and motor 3 driven to winding case 1, and motor 3 is external can be more convenient to repair, and hanged Hook is arranged at the bottom of lanyard ladder 2, and on the one hand can regard counterweight prevents suspension rope ladder 2 from excessively shaking, and in addition can be set on ground It sets hook to interlock, suspension rope ladder 2 is made more to stablize, controller 4 carries out heat dissipation by radiator fan 5 can ensure that it is operated in just Normal stabilization prevents high temperature from burning internal component, controller 4 can extraneous remote control module service personnel be not necessarily to crane The maintenance of bridge pier upper end is reached, larger torque can be improved by being used as main driving gear by planetary gear 101, and be prevented When service personnel's cat ladder, the slippery phenomenon of gear generation causes danger, arranges the roller arm 1021 of bar 102 in planetary gear 101 Driving 1029 driving push rod 1028 of lower cam can make when so that 1026 right side of jacking block is pushed away 1025 activity of lever arm on roller arm 1021 Flat suspension rope ladder 4 is carried out in lower activity, so that suspension rope ladder 2 is kept straight state when rising or decentralization, is avoided the occurrence of card Dead state, under the connection of intermittent gear 104 and gear-box 106, volume carries device 107 can complete interlocking in transmission process, Ensure service personnel in the safety of climbing, motion bar 1074 can be in the work of resetting spring 1075 once arrival motor 3 stops operating It is firmly that limiting tooth head 1076 is stuck by the synchromesh gear 1073 for winding slot 1077 down, completes further interlocking, it is improved The upper end that maintenance suspension ladder for municipal science of bridge building is fixed on bridge easy to operate can be carried out by remote controler to rope ladder Freely place and wind, greatly improves the efficiency of inspection personnel.

Ball bearing 1032 of the present invention is one kind of rolling bearing, by spherical alloy steel ball be mounted on interior steel ring and The transmission efficiency of machine power to reduce the frictional force in power transmission process and is improved in the centre of outer rim with roll mode.

Its structure and principle, which are all this technology personnel, can be learnt by technical manual or be known by routine experiment method, Problems solved by the invention is that the erosion that bridge passes through wind and rain is to ensure that bridge is in normal operating conditions, the inspection to be carried out always It looks into, detect, assessment and maintenance and reinforcement., the present invention is combined with each other by above-mentioned component, can reach improved and be used for The terraced upper end for being fixed on bridge of maintenance suspension of municipal science of bridge building is easy to operate can to carry out carrying out rope ladder by remote controler It is free to place and wind, greatly improve the efficiency of inspection personnel.

The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention, for this field skill For art personnel, it is clear that invention is not limited to the details of the above exemplary embodiments, and without departing substantially from the present invention spirit or In the case of essential characteristic, the present invention can be realized in other specific forms.Therefore, in all respects, should all incite somebody to action Embodiment regards exemplary as, and is non-limiting, the scope of the present invention by appended claims rather than on state Bright restriction, it is intended that including all changes that come within the meaning and range of equivalency of the claims in the present invention It is interior.Any reference signs in the claims should not be construed as limiting the involved claims.

In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art The other embodiment being appreciated that.

Claims (8)

1. a kind of maintenance suspension ladder for municipal science of bridge building, structure include：Wind case (1), suspension rope ladder (2), motor (3), controller (4), radiator fan (5), pedestal (6), it is characterised in that：

The mechanical part that the top of the suspension rope ladder (2) is internal with winding case (1) is flexibly connected, the main shaft of the motor (3) The right side of winding case (1) outer wall is horizontally fixed on by bolt, the radiator fan (5) is mounted on controller (4) by screw The inside grooves of front end, the top level of the pedestal (6) are welded on the bottom end of winding case (1), and the controller (4) is by leading Line is electrically connected with the rotor of motor (3)；

The winding case (1) is equipped with planetary gear (101), arranges bar (102), is driving straight-tooth (103), intermittent gear (104), same Walk the terraced device (107) of belt wheel (105), gear-box (106), volume, the gear on the right side of the planetary gear (101) and arrangement bar (102) The lever machinery in left side connects, described to arrange the vertical upper end for being installed in the terraced device (107) of volume of bar (102), the driving straight-tooth (103) it is horizontally fixed on the upper end of intermittent gear (104) and flexible connection, the axle center of the intermittent gear (104) is welded on The rear end in synchronous pulley (105) axle center, the worm screw of the gear-box (106) and the gear of the terraced device (107) of volume are intermeshed.

2. a kind of maintenance suspension ladder for municipal science of bridge building according to claim 1, it is characterised in that：The planet Gear (101) is by braces (1011), the second output gear (1012), the first output gear (1013), pinion gear fixed frame (1014), the small tooth of planet (1015), driving gear (1016), third output gear (1017), lifting wheel post (1018), bearing block (1019), bearing (10110) forms, and the bottom end of the braces (1011) is bolted on the second output gear (1012) The outer wall in axle center, second output gear (1012) is flexibly connected with the outer wall of the first output gear (1013), the planet Small tooth (1015) sets there are four being uniformly fixed on pinion gear fixed frame (1014) rear end, the external tooth of the small tooth of planet (1015) with The external tooth of driving gear (1016) is intermeshed, and first output gear (1013) is horizontally fixed on third output gear (1017) left side, the bottom end of the lifting wheel post (1018) extend vertically through the center of bearing block (1019) and with the terraced device of volume (107) the gear clearance cooperation on top, the bearing (10110) are vertically welded in the stage casing of winding case (1) inner wall.

3. a kind of maintenance suspension ladder for municipal science of bridge building according to claim 1, it is characterised in that：The whole ladder Bar (102) is by roller arm (1021), loose slot (1022), spring (1023), activity head (1024), lever arm (1025), top Block (1026), fixed head (1027), push rod (1028), cam (1029) composition, the outer wall vertical of the roller arm (1021) Through the center of loose slot (1022) and clearance fit, the spring (1023) is fixed on the lower end of activity head (1024) simultaneously And be flexibly connected with roller arm (1021), the top of the activity head (1024) is fixed on jacking block by lever arm (1025) (1026) bottom end, the fixed head (1027) are vertically installed in the top of lever arm (1025), the push rod (1028) Left side is installed in the front end of cam (1029), and the cam (1029) is mechanically connected by belt and planetary gear (101), described The bottom end of roller arm (1021) and terraced device (107) clearance fit of volume.

4. a kind of maintenance suspension ladder for municipal science of bridge building according to claim 1, it is characterised in that：The driving Straight-tooth (103) is by straight-tooth bar (1031), ball bearing (1032), ball bearing frame (1033), cone pulley (1034), support base (1035) it forms, the straight-tooth bar (1031) is horizontally fixed on the axle center of ball bearing (1032), the ball bearing (1032) Both ends be welded between ball bearing frame (1033), straight-tooth bar (1031) cone pulley (1034), the cone pulley (1034), branch It supports seat (1035) and winds case (1), straight-tooth bar (1031) planetary gear (101).

5. a kind of maintenance suspension ladder for municipal science of bridge building according to claim 1, it is characterised in that：The interval Gear (104) by No.1 tooth rest (1041), the first heterotypic gear (1042), movable belt wheel (1043), transmission nose bar (1044), Second heterotypic gear (1045), transmission straight-bar (1046) form, and No.1 tooth rest (1041) level is installed in the first abnormal shape The left side in gear (1042) axle center, the axle center of first heterotypic gear (1042) and the axle center of movable belt wheel (1043) are mutually welded It connects, the activity belt wheel (1043) is flexibly connected by belt with the outer wall of cone pulley (1034), transmission nose bar (1044) bottom The internal thread clearance fit of the external screw thread at end and the first heterotypic gear (1042) front end and with transmission straight-bar (1046) machinery even It connects, the second heterotypic gear (1045) level is installed in the left side of the first heterotypic gear (1042).

6. a kind of maintenance suspension ladder for municipal science of bridge building according to claim 1, it is characterised in that：The synchronization Belt wheel (105) is by input gear (1051), No. two wheel carriers (1052), transmission ratch (1053), driven pulley (1054), single side axis Frame (1055) forms, the axle center of the input gear (1051) be fixed on the upper end of No. two wheel carriers (1052) and with transmission ratch (1053) the gear intermeshing on the left of, the driven pulley (1054) are horizontally fixed on the right side of transmission ratch (1053) outer wall The axle center of side, the unilateral pedestal (1055) is flexibly connected with transmission ratch (1053), the horizontal peace of the driven pulley (1054) It is located at the upper end of gear-box (106), the unilateral pedestal (1055) is bolted on the stage casing of winding case (1) inner wall.

7. a kind of maintenance suspension ladder for municipal science of bridge building according to claim 1, it is characterised in that：The gear Case (106) is by thin type driving belt (1061), replica ratch (1062), pedestal (1063), output gear (1064), swivel bearing (1065), worm screw (1066) forms, the outer wall gap of the outer wall and replica ratch (1062) of the thin type driving belt (1061) Cooperation, output gear (1064) level are installed in the bottom end of pedestal (1063) inner wall, and the worm screw (1066) is through rotation The center of bearing (1065) and it is in same axle center with output gear (1064), external tooth and the terraced device of volume of the worm screw (1066) (107) the gear intermeshing of bottom, the thin type driving belt (1061) are vertically fixed on the lower end of synchronous pulley (105).

8. a kind of maintenance suspension ladder for municipal science of bridge building according to claim 1, it is characterised in that：The volume ladder Device (107) is by winding seat (1071), equipment gear (1072), synchromesh gear (1073), motion bar (1074), resetting spring (1075), limiting tooth head (1076), winding slot (1077), driving belt (1078), driven pulley (1079), tensioning wheel (10710) it forms, the axle center of the equipment gear (1072) is bolted on the front end of winding seat (1071), the auxiliary Gear (1072) is mechanically connected by synchromesh gear (1073) and winding slot (1077), and winding slot (1077) level is installed in Wind seat (1071) top bearing center, the motion bar (1074) extend vertically through the center of resetting spring (1075) and with Limiting tooth head (1076) is interference fitted, the groove of the groove and driven pulley (1079) outer wall of driving belt (1078) inner wall Intermeshing, the tensioning wheel (10710) are vertically fixed on the bottom end of driving belt (1078).