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CN-122010023-A - Free-rotation type indoor aerial work platform

CN122010023ACN 122010023 ACN122010023 ACN 122010023ACN-122010023-A

Abstract

The invention relates to a free rotary indoor aerial working platform, which comprises a chassis frame and a working table rotatably arranged on the chassis frame, wherein a universal slip ring is arranged between the chassis frame and the working table, the universal slip ring integrates a liquid path mechanism and a circuit mechanism, the liquid path mechanism comprises a rotating part and a fixing part which are matched, an oil cavity is reserved between the rotating part and the fixing part, continuous oil supply of a hydraulic element is realized in the rotating process, the fixing part comprises a vertical shaft, the circuit mechanism comprises a sliding cylinder vertically sleeved at the lower part of the vertical shaft in a sliding manner, a plurality of conducting rings are axially arranged at intervals on the outer ring of the sliding cylinder, a contact brush piece is arranged on one side of the circuit mechanism corresponding to the conducting ring, contact friction of the contact brush piece is arranged through the conducting ring, continuous power supply of an electric element is realized in the rotating process, and an electromagnetic coil is arranged between the lower side of the fixing plate and the upper end of the sliding cylinder, so that the conducting ring and the contact brush piece are separated when the circuit mechanism is not needed to work, continuous contact abrasion between the conducting ring and the contact brush piece is avoided, and the stability of electric transmission work of the circuit mechanism is improved.

Inventors

  • Nie Guangyun
  • NIE DONGDONG
  • GUI KEQUAN
  • ZHAO TENG
  • Xiong Shanliang
  • ZHAO XINLONG

Assignees

  • 锐仕(山东)工业设备有限公司

Dates

Publication Date
20260512
Application Date
20260413

Claims (8)

  1. 1. The free-rotation type indoor aerial work platform comprises a chassis frame (1) and a work table (2) rotatably arranged on the chassis frame, and is characterized in that a universal slip ring (3) is arranged between the chassis frame (1) and the work table (2), and the universal slip ring (3) comprises a liquid path mechanism (31) and a circuit mechanism (33); The liquid path mechanism (31) comprises a rotating part (311) and a fixing part (312) which are arranged up and down, the fixing part (312) comprises a fixing disc (3121) which is fixed with the chassis frame (1), a plurality of fixing drums (3122) are coaxially arranged at the upper side of the fixing disc, the rotating part (311) comprises a rotary disc (3111), a plurality of rotary drums (3112) which are coaxially arranged at the lower side of the fixing drums and are in clearance fit with the clearance of the adjacent fixing drums (3122), and the rotary drums (3112) are coaxially and rotatably inserted into the clearance between the adjacent fixing drums (3122); An annular oil cavity is formed between the lower end of the rotary drum (3112) and the upper side of the fixed disc (3121), an oil port is arranged on the fixed disc (3121) corresponding to the oil cavity, and an oil duct penetrating through the wall of the rotary drum (3112) vertically corresponds to the oil cavity on the rotary disc (3111); The lower side of the fixed disc (3121) is fixed with the chassis frame (1) through the mounting cylinder (32), the lower side of the middle part of the turntable (3111) is vertically provided with a vertical shaft (3114) which passes through the inner-most fixed cylinder (3122) and the middle part of the fixed disc (3121) and extends into the mounting cylinder (32), and the middle part of the vertical shaft (3114) is vertically communicated with a wire channel; The circuit mechanism (33) comprises a sliding cylinder (3321) vertically sleeved on the lower part of the vertical shaft (3114) in a sliding mode, a tension spring (333) is arranged between the lower end of the sliding cylinder (3321) and the lower end of the vertical shaft (3114), and an electromagnetic coil (331) fixed with the lower side of the fixed disc (3121) is arranged on the outer ring of the upper part of the vertical shaft (3114); The outer ring of the sliding cylinder (3321) is axially provided with a plurality of conductive rings (3323) at intervals, a plurality of contact brush pieces (3342) are arranged in the installation cylinder (32) corresponding to the plurality of conductive rings (3323), and the electromagnetic coil (331) is arranged to be capable of magnetically driving the sliding cylinder (3321) to move upwards until the conductive rings (3323) are in contact with the corresponding contact brush pieces (3342); one side of the installation cylinder (32) is provided with a through hole, a first electric wire extending out of the upper end of the wire channel is connected to the conducting ring (3323), and a second electric wire extending out of the installation cylinder (32) from the through hole is connected to the contact brush piece (3342).
  2. 2. The free-wheeling indoor aerial working platform according to claim 1, wherein the rotating portion (311) is configured to float up and down, and the electromagnetic coil (331) is configured to move the magnetic attraction driving sliding cylinder (3321) up to the conductive ring (3323) to contact with the corresponding contact brush piece (3342) only when the rotating portion (311) floats up to a predetermined position.
  3. 3. The free-wheeling indoor aerial working platform as claimed in claim 2, wherein a pressing cylinder (313) is fixed on the upper side of the fixed disc (3121), and the rotating part (311) is located in the pressing cylinder (313); The inner ring at the upper end of the pressing cylinder (313) extends inwards, a spring (314) is arranged between the pressing cylinder and the rotating part (311), and the rotating part (311) is downward under the elasticity of the spring (314).
  4. 4. A free-wheeling indoor aerial work platform according to claim 3, wherein a thrust bearing (315) is provided between the lower end of the spring (314) and the rotating part (311) and/or between the upper end of the spring (314) and the pressure cylinder (313).
  5. 5. The free-wheeling indoor aerial work platform of any one of claims 1 to 4, wherein an outer ring at an upper end of the slide cylinder (3321) extends outwards, a nut (3324) is screwed at a lower portion, and a plurality of conductive rings (3323) are pressed and fixed between the nut (3324) and an extension portion at an upper end of the slide cylinder (3321).
  6. 6. A free-wheeling indoor aerial work platform as claimed in any one of claims 1 to 4 wherein the chassis frame (1) is further provided with a drive means (5) which is capable of driving the work platform (2) to rotate.
  7. 7. A free-wheeling indoor aerial work platform as claimed in claim 6, wherein the drive means (5) comprises a toothed disc fixed to the chassis frame (1) and a drive machine (52) fixed to the work platform (2), the drive end of the drive machine (52) being provided with a gear (53) in meshing engagement with the toothed disc.
  8. 8. A free-wheeling indoor aerial work platform as claimed in any one of claims 1 to 4 wherein the underside of the chassis frame (1) is further provided with anti-tipping means which can be extended and retracted.

Description

Free-rotation type indoor aerial work platform Technical Field The invention belongs to the technical field of aerial work platforms, and particularly relates to a free-rotation type indoor aerial work platform. Background The indoor aerial working platform is widely applied to the fields of industrial production, warehouse logistics, equipment overhaul and automatic production, and is mainly used for lifting and transporting personnel or materials, and along with the increasing of multi-station operation, narrow space operation and multi-angle butt joint demands, the platform with a single lifting function is difficult to meet the high-efficiency operation demands. Therefore, platforms combining the lifting mechanism and the slewing mechanism gradually appear in the industry, so that the direction of the table top can be adjusted while lifting is realized, and the operation flexibility and the space utilization rate are improved. The existing rotary aerial working platform is driven by a slewing mechanism through a slewing bearing, a gear rack and a hydraulic motor to realize the rotation of a table top, the equipment is applied to real life and industrial production to a certain extent, but the equipment is obviously insufficient in continuous rotation and rotation angle, on one hand, the existing slewing structure is limited by pipeline winding, wiring and the like, the rotation range is limited, 360-degree free rotation cannot be realized continuously, only limited-angle reciprocating rotation can be realized, the operation efficiency is influenced to a certain extent, in addition, the number of hydraulic oil pipes and cables is large, the route is complex, the space of the indoor aerial working platform is limited, on the other hand, the hydraulic pipelines and the electric cables of the equipment lack of anti-winding design, and the long-term rotation is easy to twist, damage and break, and the fault rate is high. The applicant tries to introduce a slip ring structure into an aerial working platform to realize 360-degree rotation of the working platform, but finds that the existing slip ring structure cannot be matched with the working environment of the aerial working platform, and takes an application document with an application number of CN202310743684.3 in a patent library as an example, the disclosed gas-liquid photoelectric multifunctional combined slip ring adopts a double-path combined structure of a gas/liquid path and a circuit: On the one hand, the oil pressure driven by the aerial working platform to rise, fall, rotate or support is generally larger, but the existing gas-liquid shell coaxially covers the rotor, a charging hole is arranged on the gas-liquid shell, a gas-liquid through hole is arranged at the corresponding position of the rotor, the rotating tightness requirements on the rotor and the gas-liquid shell are originally larger, and once the oil pressure is overlarge, the gas-liquid shell is easy to expand and deform at the position of the charging hole, so that the rotating tightness of the gas-liquid shell is influenced; On the other hand, in the existing slip ring structure, because the electric signal transmission is realized by the sliding contact between the electric brush component and the electric brush component, when the movable end of the aerial work platform is used for wiring or other operations needing power off, the circuit can be cut off only at the fixed inlet end, so that the operation is inconvenient. Disclosure of Invention In order to solve the technical problems in the background technology, the invention provides a free-rotation type indoor aerial work platform. The technical scheme of the invention is as follows: the invention provides a free-rotation type indoor aerial working platform which comprises a chassis frame and a working table rotatably arranged on the chassis frame, wherein the rotation, lifting and transferring of personnel or materials can be realized through the working table, and in order to realize 360-degree free rotation of the working table on the chassis frame, a universal slip ring is arranged between the chassis frame and the working table, and comprises a liquid path mechanism and a circuit mechanism, so that continuous oil supply and power supply operation can be realized in the 360-degree rotation process of the working table. As one of the core technical conception of the invention, the liquid path mechanism comprises a rotating part and a fixing part which are arranged up and down, the fixing part comprises a fixing disc which is fixed with the chassis frame, the upper side of the fixing part is coaxial, a plurality of fixing cylinders are arranged in a clearance way, the rotating part comprises a rotary disc, the lower side of the rotary disc is coaxial, a plurality of rotary drums which are matched with the clearance of the adjacent fixing cylinders are arranged in a clearance way, the rotary drums are coaxially and rotatably